JPS59169662A - Heater for metal base printed circuit board - Google Patents

Heater for metal base printed circuit board

Info

Publication number
JPS59169662A
JPS59169662A JP4336383A JP4336383A JPS59169662A JP S59169662 A JPS59169662 A JP S59169662A JP 4336383 A JP4336383 A JP 4336383A JP 4336383 A JP4336383 A JP 4336383A JP S59169662 A JPS59169662 A JP S59169662A
Authority
JP
Japan
Prior art keywords
printed circuit
plate
circuit board
metal
base plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4336383A
Other languages
Japanese (ja)
Inventor
Toru Higuchi
徹 樋口
Takeshi Kano
武司 加納
Satoshi Morimoto
慧 森本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP4336383A priority Critical patent/JPS59169662A/en
Publication of JPS59169662A publication Critical patent/JPS59169662A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/002—Soldering by means of induction heating
    • 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3457—Solder materials or compositions; Methods of application thereof
    • H05K3/3468—Applying molten solder

Abstract

PURPOSE:To reduce a running cost with high efficiency and to reduce the size of a heater by placing a metal base printed circuit board on a metallic base plate and disposing a means for generating magnetic lines of force under the belt which transfers the base plate. CONSTITUTION:A metal base printed circuit board 1 formed thereon with a conductive pattern 4 consisting of copper foil via an insulating layer 3 consisting of an epoxy resin-impregnated glass fabric on a base 2 consisting of a nonmagnetic metal is placed atop a base plate 5 in such a way that the bottom surface of the plate 2 contacts tightly therewith. A means 7 for generating magnetic lines of force is disposed beneath a belt 6 of a belt conveyor which transfers the plate 5 to generate anternating magnetic fluxes. The alternating magnetic fluxes flow through the plate 5 and the plate 5 is heated by the Joule heat, by which the board 1 is heated.

Description

【発明の詳細な説明】 〔技術分野〕 本発明は金属ベースプリント基板の加熱装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a heating device for a metal-based printed circuit board.

〔背景技術Ｊ 一般に、金属ベースプリント基板はベース板が伝熱性の良い金属であり、放熱性が高いために半田付けが行ない難いという問題があシ、この問題を解決するために金属プリント基板を予め加熱する予熱工程が設けられている。従来、この予熱工程で用いられる加熱装置として、赤外線加熱器、蒸気温風加熱器、電熱ヒータ加熱器等が用いられていたが、これ等の加熱装置は低効率で運転費が高くつく上、大型であるという問題があった〔発明の目的〕[Background technology J In general, the base plate of metal-based printed circuit boards is made of a metal with good heat conductivity, and because of its high heat dissipation, it is difficult to solder.To solve this problem, preheating is performed to preheat the metal printed circuit board. A process is set up. Conventionally, infrared heaters, steam hot air heaters, electric heaters, etc. have been used as heating devices for this preheating process, but these heating devices have low efficiency and high operating costs. There was a problem of large size [Purpose of the invention]

本発明は上記の点に鑑みて為されたものであシ、その目
的とするところは、高効率で運転費が安くなシ、シかも
小型の金属ベースプリント基板の加熱装置を提供するこ
とにある。The present invention has been made in view of the above points, and its purpose is to provide a heating device for a metal-based printed circuit board that is highly efficient, has low operating costs, and is small in size. be.

〔発明の開示〕[Disclosure of the invention]

（実施例） 第１図および第２図は本発明一実施例を示すもので、Ｉ
Ｉ）Ｖｉ金属ベースプリント基板であシ、厚さ１．０鴎
のアルミ板、銅板、１８−８ステンレスなどの非磁性金
属よシなるベース板（２）上に、厚さＱ、ｌ　ｍｔｘの
エポ士シ樹脂含浸カラス布よシなる絶縁層（３）を介し
て、厚さ０．０３８ｍｍ０銅箔ニジ−なる導電パターン
（４）を形成したもので、導電パターン（４）に電子部
品を半田付けして電子回路を構成するようにしたもので
ある。［５）　ｔ／ｉ金属ペースプリシト基板０＋が載
置される合板であシ、合板（６）は厚さ１闘の炭素鋼板
のような磁性金属にて形成され、この台板（５）上面に
金属ペースづリシト基板（１）のベース板（２）下面が
密着するように載置される。（６）は台板（５）を移送
するベルトクンベアのベルト、（７）はベルト（６）の
下方に配置される磁力線発生手段である。この磁力線発
生手段（））は水平面内で巻回された磁力発生用コイル
に交流電源を印加して形成され、点線で示すような交香
磁束ダを発生させるようになっており、交番磁束Ｓは金
属ペースプリント基板ｆｌ）が載置された台板（５）を
通して流れるようになっている。(Example) Figures 1 and 2 show an example of the present invention.
I) A Vi metal base printed circuit board with a thickness of Q, l mtx is placed on a base plate (2) made of a non-magnetic metal such as an aluminum plate with a thickness of 1.0 mm, a copper plate, or 18-8 stainless steel. A conductive pattern (4) made of copper foil with a thickness of 0.038 mm is formed through an insulating layer (3) made of glass cloth impregnated with epoxy resin, and electronic components are soldered to the conductive pattern (4). It is designed to be attached to form an electronic circuit. [5] This is the plywood on which the t/i metal paste board 0+ is placed.The plywood (6) is made of a magnetic metal such as a carbon steel plate with a thickness of 1 mm, and the top surface of this base plate (5) is The metal paste substrate (1) is placed so that the lower surface of the base plate (2) is in close contact with the base plate (2). (6) is a Belt-Kunberg belt for transporting the base plate (5), and (7) is a magnetic force line generating means arranged below the belt (6). This magnetic force line generating means ()) is formed by applying an alternating current power to a magnetic force generating coil wound in a horizontal plane, and generates an alternating magnetic flux Da as shown by the dotted line, and an alternating magnetic flux S is arranged to flow through a base plate (5) on which a metal paste printed circuit board (fl) is placed.

いま、磁性金属よりなる合板（５）には交番磁束グによ
るうず電流１ｅが発生し、とのうず電流Ｉｅによるジュ
ール熱（いわゆる鉄損）によって合板（５）のみが有効
に加熱され、この合板（５）に密着して載置されている
金属ベースプリント基板（１）が伝熱によって加熱され
ることになる。ここにベルト（６）の移送スピードを０
．６ｍ／分として金属ベースプリント基板（１）を加熱
する加熱装置として、従来の赤外線加熱器を用いた場合
と本発明の加熱装置を用いた場合とを比較すると以下の
ようになる。Now, an eddy current 1e is generated in the plywood (5) made of magnetic metal due to the alternating magnetic flux, and only the plywood (5) is effectively heated by Joule heat (so-called iron loss) caused by the eddy current Ie. The metal base printed circuit board (1) placed in close contact with (5) is heated by heat transfer. Set the belt (6) transfer speed to 0 here.
．． A comparison between the case where a conventional infrared heater is used and the case where the heating apparatus of the present invention is used as a heating apparatus for heating the metal base printed circuit board (1) at a rate of 6 m/min is as follows.

（’Ｉ）　　半田ペーストを溶解させる場合（■）手半
田の予備加熱用に用いた場合以上の仁とから明らかなよ
うに、本発明の方が金属ベースプリント基板ｉｔ）の加
熱が効率よく行なえて運転費が安くなシ、しかも装置が
小型化できて占有スペースが小さくなることがわかる。('I) When melting solder paste (■) When used for preheating manual soldering As is clear from the above results, the present invention can heat the metal-based printed circuit board (it) more efficiently. It can be seen that the operating cost is low, and the equipment can be made smaller and occupy less space.

〔発明の効果〕〔Effect of the invention〕

本発明は上述のように金属ベースプリント基板を磁性金
属製の台板上に載置し、合板を移送するベルトの下方に
磁力線発生手段を配置し、磁力線発生手段にて発生され
る交番磁束が台板全通して流れるようにしたので、台板
に流れるうず電流によるジュール熱（いわゆる鉄損）Ｋ
よって合板のみが有効に加熱されるようになっておシ、
この合板上に載置されている金属ペースプリシト基板も
効率良く加熱できて運転費が安くなる上、装置が小型化
できて占有スペースを小さくすることができるという利
点がある。As described above, the present invention places a metal-based printed circuit board on a base plate made of magnetic metal, and arranges a magnetic line of force generation means below a belt for transporting plywood, so that the alternating magnetic flux generated by the magnetic line of force generation means is Since the flow is made to flow through the entire base plate, Joule heat (so-called iron loss) K due to eddy current flowing through the base plate.
Therefore, only the plywood can be heated effectively.
The metal paste printed circuit board placed on the plywood can also be heated efficiently, resulting in lower operating costs, and has the advantage that the device can be made smaller and occupy less space.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は金属ベースプリント基板の断面図、第２図は本
発明一実施例の側面図である。 ｆｔｌは金属ベースプリント基板、（５）は合板、（６
）はベルト、（７）は磁力線発生手段である。 代理人　弁理士　　石　１）長　上 第１図 第２図FIG. 1 is a sectional view of a metal-based printed circuit board, and FIG. 2 is a side view of one embodiment of the present invention. ftl is a metal base printed circuit board, (5) is plywood, (6
) is a belt, and (7) is a magnetic force line generating means. Agent Patent Attorney Ishi 1) Chief Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] Ｑ）　　金属ベースプリント基板を磁性金属製の台板上
に載置し、台板を移送するベルトの下方に磁力線発生手
段を配置し、磁力線発生手段にて発生される交番磁束が
合板を通して流れるようにして成る金属ベースプリント
基板の加熱装置。Q) A metal-based printed circuit board is placed on a base plate made of magnetic metal, and a magnetic line-of-force generation means is arranged below the belt that transports the base plate, so that the alternating magnetic flux generated by the magnetic line-of-force generation means flows through the plywood. A heating device for metal-based printed circuit boards.
JP4336383A 1983-03-15 1983-03-15 Heater for metal base printed circuit board Pending JPS59169662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4336383A JPS59169662A (en) 1983-03-15 1983-03-15 Heater for metal base printed circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4336383A JPS59169662A (en) 1983-03-15 1983-03-15 Heater for metal base printed circuit board

Publications (1)

Publication Number Publication Date
JPS59169662A true JPS59169662A (en) 1984-09-25

Family

ID=12661769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4336383A Pending JPS59169662A (en) 1983-03-15 1983-03-15 Heater for metal base printed circuit board

Country Status (1)

Country Link
JP (1) JPS59169662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126290A (en) * 1984-07-14 1986-02-05 株式会社フジクラ Method of heating metal core printed board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126290A (en) * 1984-07-14 1986-02-05 株式会社フジクラ Method of heating metal core printed board

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