JPH038393A - Heater - Google Patents
HeaterInfo
- Publication number
- JPH038393A JPH038393A JP14370789A JP14370789A JPH038393A JP H038393 A JPH038393 A JP H038393A JP 14370789 A JP14370789 A JP 14370789A JP 14370789 A JP14370789 A JP 14370789A JP H038393 A JPH038393 A JP H038393A
- Authority
- JP
- Japan
- Prior art keywords
- static electricity
- hot air
- heated
- heating
- heating device
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 230000003068 static effect Effects 0.000 claims abstract description 28
- 230000005611 electricity Effects 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、プリント回路基板（以後基板と略す）等を加
熱する装置に係り、特に基板に電子部品を装着した後、
リフローはんだ付するための加熱装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an apparatus for heating a printed circuit board (hereinafter abbreviated as a board), etc., and in particular, after electronic components are mounted on the board.
The present invention relates to a heating device for reflow soldering.
従来の技術
従来、基板にはんだ材料を塗布し、電子部品を装着した
後、加熱リフローする装置には、熱風による加熱、赤外
線による加熱、あるいは蒸気ａ熱を利用した加熱等があ
る。BACKGROUND OF THE INVENTION Conventionally, apparatuses for applying solder material to a board, mounting electronic components thereon, and then heating and reflowing the board include heating using hot air, heating using infrared rays, heating using steam a heat, and the like.
ところが最近は、均−加熱性や、ランニングコストなど
の点から評価して、比較的温度の低い熱風を速い風速で
、被加熱物に吹き付けるタイプの加熱装置が多く採用さ
れるようになってきた。However, in recent years, heating devices that blow relatively low-temperature hot air at a high speed onto the heated object have been increasingly used, due to their uniform heating properties and running costs. .
発明が解決しようとする課題
しかしながら、加熱されることで乾燥状態にある空気を
従来に比べ速い風速で加熱している間の数分被加熱物で
ある基板に吹き続けるので、基板やそこに装着されであ
る電子部品に静電気が発生することになる。Problems to be Solved by the Invention However, air that is dry due to heating continues to be blown onto the substrate, which is the object to be heated, for several minutes while it is being heated at a faster wind speed than before. static electricity will be generated on the electronic components.
そして、このことが原因で被加熱物である基板に装着し
である電子部品、特に０ＭＯ８−ＩＣ等の静電気に弱い
部品が静電破壊をおこし不良発生の原因になっていた。This has caused electrostatic damage to electronic components attached to the substrate, which is the object to be heated, particularly components susceptible to static electricity such as 0MO8-ICs, resulting in defects.
本発明は上記問題点に鑑み、加熱源として熱風を採用し
ている加熱装置においても、静電気による電子部品の破
損のない加熱装置を提供するものである。In view of the above problems, the present invention provides a heating device in which electronic components are not damaged by static electricity even in a heating device that uses hot air as a heating source.
課萌を解決するための手段
上記問題点を解決するために、本発明の加熱装置は、加
熱装置内部に静電気除去用の除電極ユニットをもうける
という構成を備えたものである。Means for Solving the Problems In order to solve the above-mentioned problems, the heating device of the present invention is provided with an electrode removal unit for removing static electricity inside the heating device.
作用
本発明は上記した構成によって、加熱装置内部の静電気
除去用除電極に電圧を印加し、針先からのコロナ放電に
よりイオンを生成し、帯電している被７ＩＩ］熱物を中
和することで、静電気による電子部品の加熱行程での破
損全防止することになる。Operation The present invention uses the above-described configuration to apply a voltage to the static electricity removal electrode inside the heating device, generate ions by corona discharge from the needle tip, and neutralize the charged hot object. This completely prevents damage to electronic components caused by static electricity during the heating process.
実施例
以下本発明の一実施例の加熱装置について、図面を参照
しながら説明する。EXAMPLE Hereinafter, a heating device according to an example of the present invention will be described with reference to the drawings.
第１図は本発明の第１の実施例における加熱装置の正面
から見た概略縦断面図である。第１図におイテ、１！Ｌ
、１ｂ、１Ｃ１１ｄ１１０１１ｆは基板等の被カロ熱物
を加熱するための熱風吹き出し口、２は被加熱物を搬送
するコンベアー、３ａ。FIG. 1 is a schematic vertical cross-sectional view of a heating device according to a first embodiment of the present invention, viewed from the front. Look at Figure 1, 1! L
, 1b, 1C11d11011f are hot air outlets for heating objects to be heated such as substrates, 2 is a conveyor for conveying objects to be heated, and 3a.
３ｂは加熱用炉体、４は被加熱物の冷却用ファン５は冷
却風の流れを整える整流板、ｓａ 、 ６ｂ 。3b is a heating furnace body; 4 is a fan 5 for cooling the object to be heated; a rectifier plate for regulating the flow of cooling air; sa, 6b;
ｅｃ 、ａｄは静電気除去用の除電極ユニットである。ec and ad are electrode removal units for removing static electricity.
以上のように構成された加熱装置について、以下第１図
を用いてその動作を説明する。The operation of the heating device configured as described above will be described below with reference to FIG. 1.
第１図において、被加熱物７が加熱用炉体３ａ。In FIG. 1, the object to be heated 7 is a heating furnace body 3a.
３ｂの中に入ると、第１加、熱ゾーンに取り付けである
吹き出し口１ｍ、１ｂから出ている熱風のために昇温さ
れる。しかし、その風は室温から１００Ｃ以上高温に加
熱されているため、乾燥した状態になっている。その結
果、風と部品との摩擦により、基板やＩＣ等の被加熱物
に静電気が発生し帯心することになる。Once inside 3b, the temperature is raised due to the hot air coming out from the first heating zone and the air outlet 1m, which is attached to the heating zone. However, because the air is heated from room temperature to a high temperature of over 100C, it is in a dry state. As a result, the friction between the wind and the parts generates static electricity on the objects to be heated, such as substrates and ICs, causing them to become centered.
このことは、被加熱物７が搬送コンベアー２に運ばれ、
吹き出し口１ｃ、１ｄのある第２加熱ゾーンや、吹き出
し口１ｅ、１ｆ’のあるはんだを溶かすための第３加熱
ゾーン、さらに溶けたはんだを冷却し凝固させる冷却ゾ
ーンにある時点でも発生する。This means that the object to be heated 7 is transported to the conveyor 2,
It also occurs in the second heating zone with the outlets 1c and 1d, the third heating zone with the outlets 1e and 1f' for melting solder, and even in the cooling zone where the melted solder is cooled and solidified.
そこで、第１図に示すように、各ゾーンにおいて静電気
除去用の除電極エニツ１−６ａ 、 ６ｂ 、６ｃ。Therefore, as shown in FIG. 1, removing electrodes 1-6a, 6b, and 6c are provided for removing static electricity in each zone.
６ｄを取り付ける。そして、除電トランスより除電極へ
電圧を印加し、針先からのコロナ放電により、イオンを
生成し、被加熱物が帯電しないようにすることができる
。Install 6d. Then, a voltage is applied from the static eliminating transformer to the eliminating electrode, and ions are generated by corona discharge from the needle tip, so that the object to be heated can be prevented from being charged.
そしてこの場き、熱風吹き付け方向が被加熱物に対して
略垂直方向で静電気除去用の除電極ユニットが熱風の吹
き出し口と被加熱物との中間位置に存在するようにし之
ことで、被加熱物７と除電極ユニソ）６ａ 、 ６ｂ
、６ｃ距離を近くすることができ、除五効率を高くする
ことが可能となった。At this time, the direction of hot air blowing is approximately perpendicular to the object to be heated, and the electrode removal unit for removing static electricity is located at an intermediate position between the hot air outlet and the object to be heated. Item 7 and removal electrode Unison) 6a, 6b
, 6c distances can be shortened, and the division efficiency can be increased.
さらに、第２図に示すように、被加熱物７が通過する搬
送面の上下両方に、静電気除去用の除電１’Ｍ ユ＝
ノドｅｓａ、ｓｂ、ｓｃ、ａｄ、ａａ、ｓｆ６ｇを具備
する事で、よシ高い除電能力と基板の上下両面に電子部
品を装着した基板にも対応ができるようになった。Furthermore, as shown in FIG.
Equipped with esa, sb, sc, ad, aa, and sf6g nodes, it has a higher static elimination ability and can now handle boards with electronic components mounted on both the top and bottom of the board.
ところで、静電気除去用の除電極ユニットの耐熱性は一
般的にそれほど高くなく、耐熱性をもたせようとすると
特殊な樹脂やセラミックと使わざるを得す、制作が非常
に難しくなる。By the way, the heat resistance of electrode removal units for static electricity removal is generally not very high, and if you try to make them heat resistant, you have to use special resin or ceramic, which makes production very difficult.
そこで、第３図に示すように、冷却用ファン４は外気の
空気を基板に吹き付けているので、その下の雰囲気温度
は比較的低い。そこで、該冷却用ファン４の下にのみ静
電気除去用の除電極ユニッ）６ｄのみを設置する事で耐
熱性のない除電極でも使用可能となる。Therefore, as shown in FIG. 3, since the cooling fan 4 blows outside air onto the board, the ambient temperature below it is relatively low. Therefore, by installing only the removing electrode unit (6d) for removing static electricity under the cooling fan 4, it is possible to use even a removing electrode that is not heat resistant.
発明の効果
以上のように本発明は、熱風により被加熱物に発生する
静電気を除去する手段を設けることで、リフローはんだ
付行程における静電気による電子部品破損の起きないは
んだ付が可能となる。Effects of the Invention As described above, the present invention enables soldering in which electronic components are not damaged due to static electricity during the reflow soldering process by providing a means for removing static electricity generated on objects to be heated using hot air.
第１図は本発明の第１の実施例における加熱装置の概略
縦断面図、第２図は本発明の第２の実施例における加熱
装置の概略縦断面図、第３図は本発明の第３の実施例に
おける加熱装置の概略縦断面図である。
１ ａ 、 １ｂ 、 １ｃ 、 １ｄ 、 １ａ 、
１ｆ 、 １ｇ ・・・・・熱風吹き出し口、２・・
・・・・コンベアー＝３１Ｌ、３ｂ・・・・・加熱用炉
体、４・・・・・冷却用ファン、６ｔｔ、６ｂ。
８Ｃ，８（１，８１５、ｆ５ｆ、６ｇ・＝−・除’ｔｉ
ユニット、７・・・・・・被加熱物。FIG. 1 is a schematic vertical cross-sectional view of a heating device according to a first embodiment of the present invention, FIG. 2 is a schematic vertical cross-sectional view of a heating device according to a second embodiment of the present invention, and FIG. FIG. 3 is a schematic vertical cross-sectional view of a heating device in Example 3; 1a, 1b, 1c, 1d, 1a,
1f, 1g...Hot air outlet, 2...
... Conveyor = 31L, 3b ... Heating furnace body, 4 ... Cooling fan, 6tt, 6b. 8C, 8 (1,815, f5f, 6g・=-・division'ti
Unit, 7...Object to be heated.
Claims (5)
熱物を加熱する装置において、熱風を吹き付けることで
被加熱物を加熱する手段と、熱風により被加熱物に発生
する静電気を除去する手段を備えたことを特徴とする加
熱装置。(1) In a device that heats an object to be heated, such as a printed circuit board on which electronic components are mounted, a means for heating the object by blowing hot air and a means for removing static electricity generated on the object by hot air. A heating device characterized by comprising:
方向であることを特徴とする特許請求の範囲第１項記載
の加熱装置。(2) The heating device according to claim 1, wherein the hot air blowing direction is substantially perpendicular to the object to be heated.
し口と被加熱物との中間位置に存在するようにしたこと
を特徴とする特許請求の範囲第１項または第２項記載の
加熱装置。(3) The heating device according to claim 1 or 2, wherein the electrode removal unit for removing static electricity is located at an intermediate position between the hot air outlet and the object to be heated. .
いる加熱装置において、被加熱物が通過する搬送面の上
下両方に、静電気除去用の除電極ユニットを具備した加
熱装置。(4) A heating device equipped with a conveyor for conveying an object to be heated, which is equipped with electrode removal units for removing static electricity both above and below a conveying surface through which the object to be heated passes.
いて、冷却ゾーンに静電気除去用の除電極ユニットを具
備した加熱装置。(5) A heating device including a heating zone and a cooling zone, the heating device including an electrode removal unit for removing static electricity in the cooling zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1143707A JP2830074B2 (en) | 1989-06-06 | 1989-06-06 | Heating device and heating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1143707A JP2830074B2 (en) | 1989-06-06 | 1989-06-06 | Heating device and heating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH038393A true JPH038393A (en) | 1991-01-16 |
| JP2830074B2 JP2830074B2 (en) | 1998-12-02 |
Family
ID=15345105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1143707A Expired - Lifetime JP2830074B2 (en) | 1989-06-06 | 1989-06-06 | Heating device and heating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2830074B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7781666B2 (en) | 2000-01-11 | 2010-08-24 | Yamaha Corporation | Apparatus and method for detecting performer's motion to interactively control performance of music or the like |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916175U (en) * | 1982-07-23 | 1984-01-31 | ソニ−・テクトロニクス株式会社 | Electrical component desoldering equipment |
| JPH0173970U (en) * | 1987-11-04 | 1989-05-18 |
-
1989
- 1989-06-06 JP JP1143707A patent/JP2830074B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916175U (en) * | 1982-07-23 | 1984-01-31 | ソニ−・テクトロニクス株式会社 | Electrical component desoldering equipment |
| JPH0173970U (en) * | 1987-11-04 | 1989-05-18 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7781666B2 (en) | 2000-01-11 | 2010-08-24 | Yamaha Corporation | Apparatus and method for detecting performer's motion to interactively control performance of music or the like |
| US8106283B2 (en) | 2000-01-11 | 2012-01-31 | Yamaha Corporation | Apparatus and method for detecting performer's motion to interactively control performance of music or the like |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2830074B2 (en) | 1998-12-02 |
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