JPH02111894U - - Google Patents
Info
- Publication number
- JPH02111894U JPH02111894U JP2103089U JP2103089U JPH02111894U JP H02111894 U JPH02111894 U JP H02111894U JP 2103089 U JP2103089 U JP 2103089U JP 2103089 U JP2103089 U JP 2103089U JP H02111894 U JPH02111894 U JP H02111894U
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- fire detector
- frame wall
- outer periphery
- detection mechanism
- 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
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 5
- 239000010410 layer Substances 0.000 claims 3
- 239000000779 smoke Substances 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 239000011889 copper foil Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000011241 protective layer Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2103089U JPH02111894U (enExample) | 1989-02-23 | 1989-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2103089U JPH02111894U (enExample) | 1989-02-23 | 1989-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02111894U true JPH02111894U (enExample) | 1990-09-06 |
Family
ID=31237900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2103089U Pending JPH02111894U (enExample) | 1989-02-23 | 1989-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02111894U (enExample) |
-
1989
- 1989-02-23 JP JP2103089U patent/JPH02111894U/ja active Pending