JPH0515419Y2 - - Google Patents
Info
- Publication number
- JPH0515419Y2 JPH0515419Y2 JP9913388U JP9913388U JPH0515419Y2 JP H0515419 Y2 JPH0515419 Y2 JP H0515419Y2 JP 9913388 U JP9913388 U JP 9913388U JP 9913388 U JP9913388 U JP 9913388U JP H0515419 Y2 JPH0515419 Y2 JP H0515419Y2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- temperature
- planar heater
- reflow oven
- planar
- 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.)
- Expired - Lifetime
Links
- 238000009529 body temperature measurement Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Tunnel Furnaces (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、電子部品を搭載した回路基板を通過
させて電子部品と回路基板の半田付けを行うリフ
ロー炉に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a reflow oven for soldering electronic components and circuit boards by passing a circuit board on which electronic components are mounted.
図−６に従来のリフロー炉を示す。図におい
て、１は電子部品を搭載した回路基板よりなる被
加熱体、２は被加熱体１を搬送するコンベア、３
はコンベア２により送られる被加熱体１を上下か
ら加熱する面状ヒーター、４は面状ヒーター３を
支持する炉体、５は炉内の温度を測定する放射温
度計である。
Figure 6 shows a conventional reflow oven. In the figure, 1 is a heated object made of a circuit board mounted with electronic components, 2 is a conveyor that conveys the heated object 1, and 3
Reference numeral 4 designates a planar heater that heats the object to be heated 1 from above and below, which is conveyed by a conveyor 2, 4 a furnace body that supports the planar heater 3, and 5 a radiation thermometer that measures the temperature inside the furnace.
このようにリフロー炉には被加熱体１の通路に
沿つて面状ヒーター３が設置されているが、面状
ヒーター３の設置位置には放射温度計５を設置す
ることができない。このため従来のリフロー炉に
おいては、放射温度計５を面状ヒーター３の間に
設置せざるを得ず、炉内の正確な温度分布や、面
状ヒーター３により加熱されつつある被加熱体１
の温度などを測定するには不十分であつた。 As described above, the planar heater 3 is installed along the path of the object to be heated 1 in the reflow oven, but the radiation thermometer 5 cannot be installed at the location where the planar heater 3 is installed. For this reason, in the conventional reflow oven, it is necessary to install the radiation thermometer 5 between the sheet heaters 3, and it is necessary to check the accurate temperature distribution inside the furnace and the object to be heated 1 which is being heated by the sheet heater 3.
It was insufficient to measure temperature, etc.
本考案は、上記のような従来技術の問題点に鑑
みてなされたもので、その構成は、被加熱体の通
路に沿つて面状ヒーターを設置してなるリフロー
炉において、上記面状ヒーターの所要箇所に温度
測定用の穴を形成したことを特徴とするものであ
る。
The present invention was devised in view of the problems of the prior art as described above, and its configuration is such that the planar heater is installed in a reflow oven in which the planar heater is installed along the path of the heated object. It is characterized by having holes for temperature measurement formed at required locations.
このような穴を形成しておけば面状ヒーターの
設置位置において温度測定を行うことができるよ
うになる。面状ヒーターに穴をあけると温度分布
が乱れるおそれがあるため従来、穴をあけること
は考えられていなかつたが、放射温度計による温
度測定にはそれほど大きな穴を必要としないの
で、穴をあけても面状ヒーターとしての特性が損
なわれることは実質的にない。 By forming such a hole, it becomes possible to measure the temperature at the installation position of the sheet heater. Previously, drilling holes in a sheet heater was not considered because it could disrupt the temperature distribution, but since temperature measurement with a radiation thermometer does not require a very large hole, However, the characteristics as a sheet heater are not substantially impaired.
以下、本考案の実施例を図面を参照して詳細に
説明する。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
図−１は本考案の一実施例を示すもので、先に
説明した図−６と同一部分には同一符号が付して
ある。このリフロー炉に用いられている面状ヒー
ター３にはそれぞれ温度測定用の穴６が形成され
ており、各面状ヒーター３の裏面にはその穴６に
対応する位置に放射温度計５が設置されている。
穴６は図−２に示すように面状ヒーター３の幅方
向（被加熱体の走行方向と交差する方向）に細長
く形成されており、幅方向の任意の位置で温度測
定が行えるようになつている。穴６の幅は20〜30
mm程度あれば十分であり、この程度の大きさであ
れば、面状ヒーター３の温度特性が損なわれるこ
とは殆どない。なお図−２において、７は面状ヒ
ーター３の遠赤外線放射面を示す。 FIG. 1 shows an embodiment of the present invention, and the same parts as those in FIG. 6 described above are given the same reference numerals. A hole 6 for temperature measurement is formed in each of the sheet heaters 3 used in this reflow oven, and a radiation thermometer 5 is installed on the back surface of each sheet heater 3 at a position corresponding to the hole 6. has been done.
As shown in Figure 2, the hole 6 is formed to be elongated in the width direction of the sheet heater 3 (the direction that intersects the running direction of the heated object), so that the temperature can be measured at any position in the width direction. ing. The width of hole 6 is 20~30
A size of about mm is sufficient, and the temperature characteristics of the planar heater 3 will hardly be impaired if the size is about this size. In addition, in FIG. 2, 7 indicates the far-infrared radiation surface of the planar heater 3.
上記の実施例では全ての面状ヒーターに温度測
定用の穴を形成したが、穴は温度測定を必要とす
る面状ヒーターにだけ形成すればよい。また全て
の面状ヒーターに穴を形成しておいて、温度測定
を行うところにだけ放射温度計を設置するように
してもよい。 In the above embodiment, holes for temperature measurement were formed in all the planar heaters, but the holes need only be formed in the planar heaters that require temperature measurement. Alternatively, holes may be formed in all the planar heaters, and radiation thermometers may be installed only at the locations where the temperature is to be measured.
図−３ないし図−４は本考案のリフロー炉に用
いられる面状ヒーターの他の例を示す。図−３の
面状ヒーター３は被加熱体の走行方向（矢印）と
交差する方向に複数本の細長い穴６を形成したも
のであり、図−４の面状ヒーター３は被加熱体の
走行方向（矢印）およびそれと交差する方向にそ
れぞれ適当な間隔をおいて小さな穴６を多数形成
したものであり、図−５の面状ヒーター３は被加
熱体の走行方向（矢印）に複数本の細長い穴６を
形成したものである。いずれの場合も、穴６は面
状ヒーター３内の電熱線８を避けて形成されてい
る。 3 and 4 show other examples of the planar heater used in the reflow oven of the present invention. The planar heater 3 shown in Fig. 3 has a plurality of elongated holes 6 formed in a direction intersecting the running direction (arrow) of the heated object, and the planar heater 3 shown in Fig. 4 A large number of small holes 6 are formed at appropriate intervals in the direction (arrow) and the direction crossing the direction, and the planar heater 3 shown in Fig. 5 has a plurality of holes 6 in the running direction (arrow) of the heated object. A long and narrow hole 6 is formed therein. In either case, the hole 6 is formed so as to avoid the heating wire 8 in the planar heater 3.
以上説明したように本考案によれば、面状ヒー
ターに温度測定用の穴が形成されているので、面
状ヒーターの設置位置において放射温度計による
温度測定が可能であり、炉内の正確な温度分布
や、面状ヒーターにより加熱されつつある被加熱
体の温度などを正確に測定することができる。ま
たこれにより温度制御をより適正に行うことがで
きる。
As explained above, according to the present invention, the hole for temperature measurement is formed in the sheet heater, so it is possible to measure the temperature with a radiation thermometer at the installation position of the sheet heater, and it is possible to accurately measure the temperature inside the furnace. It is possible to accurately measure temperature distribution and the temperature of the object being heated by the planar heater. Moreover, this allows temperature control to be performed more appropriately.
図−１は本考案の一実施例に係るリフロー炉の
断面図、図−２は同リフロー炉に使用した面状ヒ
ーターの斜視図、図−３ないし図−５はそれぞれ
本考案に使用される面状ヒーターの異なる例を示
す平面図、図−６は従来のリフロー炉の断面図で
ある。
１……被加熱体、２……コンベア、３……面状
ヒーター、４……炉体、５……放射温度計、６…
…穴、７……遠赤外線放射面、８……電熱線。
Figure 1 is a sectional view of a reflow oven according to an embodiment of the present invention, Figure 2 is a perspective view of a planar heater used in the reflow oven, and Figures 3 to 5 are each used in the present invention. A plan view showing a different example of a sheet heater, and FIG. 6 is a sectional view of a conventional reflow oven. DESCRIPTION OF SYMBOLS 1... Heated object, 2... Conveyor, 3... Planar heater, 4... Furnace body, 5... Radiation thermometer, 6...
...hole, 7...far-infrared radiation surface, 8...heating wire.
Claims (1)
てなるリフロー炉において、上記面状ヒーターの
所要箇所に温度測定用の穴を形成したことを特徴
とするリフロー炉。 1. A reflow oven comprising a sheet heater installed along a path of a heated object, characterized in that holes for temperature measurement are formed at required locations in the sheet heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9913388U JPH0515419Y2 (en) | 1988-07-28 | 1988-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9913388U JPH0515419Y2 (en) | 1988-07-28 | 1988-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0222259U JPH0222259U (en) | 1990-02-14 |
| JPH0515419Y2 true JPH0515419Y2 (en) | 1993-04-22 |
Family
ID=31326009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9913388U Expired - Lifetime JPH0515419Y2 (en) | 1988-07-28 | 1988-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0515419Y2 (en) |
-
1988
- 1988-07-28 JP JP9913388U patent/JPH0515419Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0222259U (en) | 1990-02-14 |
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