JPH0360085U - - Google Patents
Info
- Publication number
- JPH0360085U JPH0360085U JP12149989U JP12149989U JPH0360085U JP H0360085 U JPH0360085 U JP H0360085U JP 12149989 U JP12149989 U JP 12149989U JP 12149989 U JP12149989 U JP 12149989U JP H0360085 U JPH0360085 U JP H0360085U
- Authority
- JP
- Japan
- Prior art keywords
- section
- heater
- disconnection
- disconnection detection
- unit
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は従来のヒーター断線の警告ユニツトの一例の
ブロツク図である。
１，２１……加熱部（１〜ｎ）、２，２２……
ヒーターユニツト（Ｒ１−１〜Ｒｎ−ｎ）、３…
…個別切替リレー部（Ｓ１−１〜Ｓｎ−ｎ）、４
，２４……温度制御部、５，２５……ヒーター電
源、６……断線検出部、７，２８……アラーム発
生部、８……断線検出切替リレー部、９……断線
検出動作制御部、１０……タイマ部、１１……断
線ヒーター表示部、２３……加熱電流測定部、２
６……電流比較部、２７……基準電流設定部、２
９……加熱総電流、３０……ヒーターユニツト電
流。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is a block diagram of an example of a conventional heater disconnection warning unit. 1, 21... heating section (1 to n), 2, 22...
Heater unit (R 1-1 to R n-n ), 3...
...Individual switching relay section ( S1-1 to Sn-n ), 4
, 24... Temperature control section, 5, 25... Heater power supply, 6... Disconnection detection section, 7, 28... Alarm generation section, 8... Disconnection detection switching relay section, 9... Disconnection detection operation control section, 10...Timer section, 11...Disconnection heater display section, 23...Heating current measuring section, 2
6...Current comparison section, 27...Reference current setting section, 2
9... Total heating current, 30... Heater unit current.
Claims (1)
のヒーターユニツトを有する加熱部と、該加熱部
内に設けられ前記ヒーターユニツトの個々のヒー
ター線の一端と結び温度を制御する温度制御部と
、個々の前記ヒーター線の他端と前記温度制御部
とを結ぶ回路間に挿入した個別切替リレー部と、
個々の前記ヒーター線の一端と結ぶ断線検出部と
、該断線検出部と前記個別切替リレー部とを結ぶ
回路間に挿入した断線検出切替リレー部と、前記
断線検出部と交互に接続しかつ前記断線検出部の
出力を受ける断線検出動作制御部と、該断線検出
動作制御部の動作間隔を時間制御するタイマ部と
、前記断線検出部からの出力を前記断線検出動作
制御部経由で受けて断線が発生した前記ヒーター
線を表示する断線ヒーター表示部とを備えること
を特徴とするヒーター断線の警告ユニツト。 ２ 前記断線検出部からの信号により作動するア
ラーム発生部を備えることを特徴とする請求項１
記載のヒーター断線の警告ユニツト。[Claims for Utility Model Registration] 1. A heating section having a plurality of heater units used to heat a circuit board of an electronic device, and a heater wire provided in the heating section and connected to one end of each heater wire of the heater unit to control temperature. and an individual switching relay section inserted between a circuit connecting the other end of each of the heater wires and the temperature control section;
A disconnection detection unit connected to one end of each of the heater wires, a disconnection detection switching relay unit inserted between a circuit connecting the disconnection detection unit and the individual switching relay unit, and a disconnection detection switching relay unit connected alternately to the disconnection detection unit, and a disconnection detection operation control section that receives the output of the disconnection detection section; a timer section that controls the operation interval of the disconnection detection operation control section; and a timer section that receives the output from the disconnection detection section via the disconnection detection operation control section and detects the disconnection A heater disconnection warning unit comprising: a disconnection heater display section for displaying the heater wire in which a heater disconnection has occurred. 2. Claim 1, further comprising an alarm generation section that is activated by a signal from the disconnection detection section.
Warning unit for heater disconnection as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12149989U JPH0360085U (en) | 1989-10-16 | 1989-10-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12149989U JPH0360085U (en) | 1989-10-16 | 1989-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0360085U true JPH0360085U (en) | 1991-06-13 |
Family
ID=31669533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12149989U Pending JPH0360085U (en) | 1989-10-16 | 1989-10-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0360085U (en) |
-
1989
- 1989-10-16 JP JP12149989U patent/JPH0360085U/ja active Pending
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