TWI450664B - 製造用於控制器之電路板組件的方法 - Google Patents

製造用於控制器之電路板組件的方法 Download PDF

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TWI450664B
TWI450664B TW097144056A TW97144056A TWI450664B TW I450664 B TWI450664 B TW I450664B TW 097144056 A TW097144056 A TW 097144056A TW 97144056 A TW97144056 A TW 97144056A TW I450664 B TWI450664 B TW I450664B
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circuit board
printed circuit
manufacturing
controller
board assembly
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TW200926924A (en
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Xiao Yan
Thomas J Bergherr
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Danfoss Power Solutions Inc
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/36Assembling printed circuits with other printed circuits
    • H05K3/366Assembling printed circuits with other printed circuits substantially perpendicularly to each other
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/04Assemblies of printed circuits
    • H05K2201/048Second PCB mounted on first PCB by inserting in window or holes of the first PCB
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09Shape and layout
    • H05K2201/09145Edge details
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09Shape and layout
    • H05K2201/09145Edge details
    • H05K2201/09172Notches between edge pads
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431Details of mounted components
    • H05K2201/10439Position of a single component
    • H05K2201/10446Mounted on an edge
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49126Assembling bases
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49144Assembling to base an electrical component, e.g., capacitor, etc. by metal fusion
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49147Assembling terminal to base
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49124On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49147Assembling terminal to base
    • Y10T29/49149Assembling terminal to base by metal fusion bonding

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Combinations Of Printed Boards (AREA)

Description

製造用於控制器之電路板組件的方法
本發明係有關於一種用於控制器之電路板組件。更具體而言,本發明係有關於一種製造電路板組件的方法,該電路板組件使用榫卯式(mortise and tenon)之連接。
將高單位電流(大於3安培)傳入機器設備之控制器以及自其傳送出來之需要一直持續上升。更重要者,在許多應用中,除了一般產品原先設計之機器控制功能之外,亦有必要進行電源之管理。此等應用包括滑移轉向裝載機(skid steer loader)、托拉機-裝載機-鋤耕機(tractor-loader-backhoe)、垃圾車、以及定向式鑚機(directional drill)。待控制之元件種類包含高強度光源、警示信標、燃料式螺線管(fuel solenoid)、雨刷馬達(wiper motor)、以及座位取暖器(seat heater)。此等類型之元件存在於多數應用之中,且藉由將這些元件加入車用控制系統致使其增加額外之自動化、計時功能,並降低因保險絲燒壞而中斷運作之危機。
其必須將電流引入電路板,方能使得控制器可以管理這些高功率之運作。基於封閉式設計,主要電路往往係位於垂直於連接器板之印刷電路板(printed circuit board;PCB)上。其通常利用一直角連接器以將主電路板連接至連接器板。然而,在不犧牲板子空間之前提下,多數直角連接器無法承載大量之電流。
電路板面對的另一個問題是其必須將傳送電流時產生之總熱量最小化。其中一種解決方法係在主板和連接器板之間連接一客製化之銅片。然而,此種方法代價極為昂貴。因此,其有需要提出一種具有成本效率之製造電路板組件的方法,該方法可以將流通於主板和連接器板間之大量電流產生之總熱量最小化。
基於此點,本發明之一基本目的在於提出一種在二印刷電路板間傳輸大於3安培電流之電路板組件。
本發明之又另一目的在於提出一種具有成本效率之製造電路板組件的方法。
本發明之另一目的在於提出一種在電流自一主板傳輸至一連接器板期間產生極小熱量之電路板組件。
由以下之詳細說明及申請專利範圍之內容,本發明之上述及其他目的、特徵或優點將趨於明顯。
一種製造用於控制器之電路板組件的方法。此方法包含提供一其內具有複數銅質焊墊之第一印刷電路板,其中每一銅質焊墊均具有一狹孔貫穿其中。接著提供一具有對應於該銅質焊墊之複數接電凸片(power tabs)之第二印刷電路板,具體言之,其係對應於前述第一印刷電路板之該等銅質焊墊內之狹孔。第二印刷電路板之接電凸片接著滑移穿過第一印刷電路板之狹孔以在第一及第二印刷電路板之間提供一電性連接,其中電流可以自第一印刷電路板流通至第二印刷電路板。前述之複數接電凸片接著被以銅淹覆 至第二印刷電路板之邊緣以最大化第一印刷電路板及第二印刷電路板間之電流承載能力。最後,該等接電凸片被焊接至該等銅質焊墊以完成第一及第二印刷電路板間之連接。
圖1顯示一電路板組件10,其包含一第一印刷電路板12及一第二印刷電路板14。在一較佳實施例中,第一印刷電路板12被視為一主板,而第二印刷電路板14被視為一連接器板。第一及第二印刷電路板12、14均係印刷式的,如同該領域所習知的。
第一印刷電路板12具有一狹長主體16,該狹長主體16具有第一及第二側邊17a及17b,以及一邊緣18。邊緣18包含複數個銅質焊墊20自其延伸而出。該複數個銅質焊墊20具有狹孔22貫穿其中。在一較佳實施例中,前述之狹孔22係電鍍的(plated);但為將成本最小化,其不必然是電鍍的。同樣地,取決於成本限制,前述之銅質焊墊20可以是電鍍的或是非電鍍的。每一銅質焊墊20額外包含一基座24,其中基座24之鄰接處具有凹切周緣(undercutradii)26以利焊接作業。
第二印刷電路板14亦具有一狹長主體28,狹長主體28具有一邊緣30。邊緣30具有複數凹腔32配置於其內,其對應至第一印刷電路板12之銅質焊墊20。該複數個凹腔32其內具有接電凸片34,在一較佳實施例中,其係由銅製成。此外,該等接電凸片34在較佳實施例中並不具有防焊 綠漆(solder mask),使得銅質暴露於外以焊接至第一印刷電路板12。與第一印刷電路板之銅質焊墊20極為類似地,第二印刷電路板14之接電凸片34具有一基座36,其中凹切周緣38被置於基座36之鄰接處以利焊接作業。
因此,第一及第二印刷電路板12、14之設計使得接電凸片34穿過狹孔22而以直角之方式連接第一及第二印刷電路板12、14並在其內無額外連接下完全支撐該連接。雖然其可以使用額外之連接,但額外之連接點對目前之設計而言係不必要的,故較之此類型的其他種連接方式,本設計更能節省成本。當一接電凸片34滑入一狹孔22,其呈現出複數個焊接點40,此情況明白顯示如圖4。
在製造流程期間,第二印刷電路板14或連接器板先行安裝而後再回焊。焊接錫膏置於第一印刷電路板12之第一側面17a及狹孔22之上。作業員接著將第二印刷電路板14之接電凸片34滑移穿過第一印刷電路板12之狹孔22,並因此將焊接錫膏推進第一印刷電路板12之第二側面17b。故接電凸片34之長度必須夠短以使用到推進來的焊接錫膏,但又不能過短,以免鬆開藉由穿過狹孔22所構成之連接。
一旦接電凸片34滑入狹孔22,第一印刷電路板12將與第二印刷電路板14呈垂直狀態。雖然其可以使用傳遞輸入及輸出信號之選擇性直角連接以保持第一及第二印刷電路板12、14彼此垂直,但此並非必要。
當接電凸片34進入狹孔22之後,第二印刷電路板14 或連接器板被再次與第一印刷電路板12或主板進行回焊。此時,為了將此設計之電流承載能力以及可焊接性最大化,接電凸片34被以銅淹覆至第二印刷電路板14之邊緣30。
最後,接電凸片34被焊接於狹孔22之內以完成此連接。如圖4所清楚顯示,凸片和狹孔經周密地設計以確保第一及第二印刷電路板12、14之頂層及底層之焊接對於每一凸片計有四個焊接點。具體而言,第一及第二印刷電路板12、14內部之凹切周緣26、38增進了焊接性並確保做為一組件之尺寸上之可重複性。
最終結果係二獨立印刷電路板之連接,其中該二電路板之連接同時亦代表二板間之電性連接,其使得諸如超過3安培之高電流傳輸得以流通於電路板之間。此種連接及製造流程不僅代價低廉且係可以重複的。此外,電路板組件10之結構產生極小量之熱,且至少滿足前述之所有目的。
習於此技藝之人士應能了解,對上述裝置之其他各種修改可以在未背離本發明之精神和範疇下達成。所有此等修改及變化均落入申請專利範圍之範疇而為其所涵蓋。
10‧‧‧電路板組件
12‧‧‧第一印刷電路板
14‧‧‧第二印刷電路板
16‧‧‧第一印刷電路板之狹長主體
18‧‧‧狹長主體16之邊緣
20‧‧‧銅質焊墊
22‧‧‧銅質焊墊20之狹孔
24‧‧‧銅質焊墊20之基座
26‧‧‧基座24鄰接處之凹切周緣
28‧‧‧第二印刷電路板之狹長主體
30‧‧‧狹長主體28之邊緣
32‧‧‧邊緣30之凹腔
34‧‧‧接電凸片
36‧‧‧接電凸片34之基座
38‧‧‧基座36鄰接處之凹切周緣
40‧‧‧焊接點
圖1係一電路板組件之一側視立體圖;圖2係一第一印刷電路板之一側視平面圖;圖3係一第二印刷電路板之一側視平面圖;以及圖4係一第一及第二印刷電路板間一連接之一側視截面圖。
12‧‧‧第一印刷電路板
14‧‧‧第二印刷電路板
20‧‧‧銅質焊墊
22‧‧‧狹孔
34‧‧‧接電凸片
40‧‧‧焊接點

Claims (12)

  1. 一種製造用於控制器之電路板組件的方法,包含以下步驟:提供一第一印刷電路板,該第一印刷電路板具有複數銅質焊墊,該複數銅質焊墊中之至少其一具有一貫穿其間之狹孔;其中該複數銅質焊墊中每一個均具有一基座,其中削切周緣被設置於每一該基座鄰接處以利焊接作業;提供一第二印刷電路板,該第二印刷電路板具有對應於該複數銅質焊墊之複數接電凸片;滑移至少一接電凸片穿過該狹孔以在該第一及第二印刷電路板之間提供一電性連接,其中電流自該第一印刷電路板流通至該第二印刷電路板;以及將該複數接電凸片以銅淹覆至該第二印刷電路板之一邊緣以最大化該第一印刷電路板及該第二印刷電路板間之電流承載能力。
  2. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,其中該狹孔係電鍍的。
  3. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,其中該接電凸片不具有一防焊綠漆。
  4. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,其中該第一印刷電路板及該第二印刷電路板間之唯一連接係穿過狹孔之接電凸片。
  5. 如申請專利範圍第1項所述之製造用於控制器之電 路板組件的方法,其中該複數接電凸片中每一個均具有一基座,其中削切周緣被設置於該基座鄰接處以利焊接作業。
  6. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,更包含將焊接錫膏置於該狹孔之一第一側面之上。
  7. 如申請專利範圍第6項所述之製造用於控制器之電路板組件的方法,更包含當一接電凸片穿入該狹孔時以該接電凸片將該焊接錫膏經由該狹孔之該第一側面推入該狹孔之一第二側面。
  8. 如申請專利範圍第7項所述之製造用於控制器之電路板組件的方法,更包含將位於該狹孔之該第一及第二側面之該接電凸片焊接至一銅質焊墊。
  9. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,其中該滑移至少一接電凸片穿過該狹孔之步驟將該第一印刷電路板垂直固定至該第二印刷電路板。
  10. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,其中該等銅質焊墊從該第一印刷電路板之一邊緣向外延伸。
  11. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,其中該等接電凸片從該第二印刷電路板之一邊緣向外延伸。
  12. 如申請專利範圍第1項所述之製造用於控制器之電路板組件的方法,其中該第一印刷電路板之邊緣以與該第 二印刷電路板之邊緣互相結合的關係來置放。
TW097144056A 2007-12-12 2008-11-14 製造用於控制器之電路板組件的方法 TWI450664B (zh)

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CN101460016A (zh) 2009-06-17
DE102008058749A1 (de) 2009-06-18
US20090151156A1 (en) 2009-06-18
TW200926924A (en) 2009-06-16
US7716821B2 (en) 2010-05-18

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