JPH03116487U - - Google Patents
Info
- Publication number
- JPH03116487U JPH03116487U JP2370790U JP2370790U JPH03116487U JP H03116487 U JPH03116487 U JP H03116487U JP 2370790 U JP2370790 U JP 2370790U JP 2370790 U JP2370790 U JP 2370790U JP H03116487 U JPH03116487 U JP H03116487U
- Authority
- JP
- Japan
- Prior art keywords
- thermocouple
- fire detector
- junction side
- linear
- circuit board
- 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
- 239000002184 metal Substances 0.000 claims 2
- 239000011888 foil Substances 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 229910001006 Constantan Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Fire-Detection Mechanisms (AREA)
Description
図面は本考案に係る一実施例を説明する図面で
あり、第１図ａは概略側面図、第１図ｂは概略底
面図、第１図ｃは部分拡大説明図、第２図は温度
変化を説明する図、第３図は起電圧変化を説明す
る図である。
１……プリント基板、２……線状パターン、３
，４……穴、５……受熱パターン、６……引出線
用パターン、７……コンスタンタンワイヤ、８…
…半田、９……ピース、１０……ベース、１１…
…ねじ。
The drawings are diagrams for explaining one embodiment of the present invention, in which Fig. 1a is a schematic side view, Fig. 1b is a schematic bottom view, Fig. 1c is a partially enlarged explanatory view, and Fig. 2 shows temperature change. FIG. 3 is a diagram illustrating changes in electromotive voltage. 1... Printed circuit board, 2... Linear pattern, 3
, 4...hole, 5...heat receiving pattern, 6...lead wire pattern, 7...constantan wire, 8...
...Solder, 9...Piece, 10...Base, 11...
…screw.
Claims (1)
ント基板と、前記プリント基板の金属箔で形成し
た複数の線状パターンと、前記線状パターンに接
続して温接点と冷接点を形成し互いに熱電対を構
成するように前記基板面上に配置した複数の金属
線と、少なくとも線状パターンの冷接点側を覆う
熱抵抗部材とを有することを特徴とする熱電対式
火災感知器。 (2) 線状パターンの温接点側に冷接点側とは反
対方向に延長した受熱パターンを形成したことを
特徴とする請求項第１項記載の熱電対式火災感知
器。[Claims for Utility Model Registration] (1) A fire detector using a thermocouple includes a printed circuit board, a plurality of linear patterns formed of metal foil on the printed circuit board, and a thermocouple connected to the linear patterns. A thermoelectric device characterized by having a plurality of metal wires arranged on the substrate surface so as to form contacts and cold junctions and mutually constitute a thermocouple, and a thermal resistance member that covers at least the cold junction side of the linear pattern. Twin fire detector. (2) The thermocouple type fire detector according to claim 1, characterized in that a heat receiving pattern extending in the opposite direction from the cold junction side is formed on the hot junction side of the linear pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2370790U JPH03116487U (en) | 1990-03-12 | 1990-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2370790U JPH03116487U (en) | 1990-03-12 | 1990-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03116487U true JPH03116487U (en) | 1991-12-03 |
Family
ID=31526691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2370790U Pending JPH03116487U (en) | 1990-03-12 | 1990-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03116487U (en) |
-
1990
- 1990-03-12 JP JP2370790U patent/JPH03116487U/ja active Pending
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