JPS63192888U - - Google Patents
Info
- Publication number
- JPS63192888U JPS63192888U JP8369388U JP8369388U JPS63192888U JP S63192888 U JPS63192888 U JP S63192888U JP 8369388 U JP8369388 U JP 8369388U JP 8369388 U JP8369388 U JP 8369388U JP S63192888 U JPS63192888 U JP S63192888U
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- sensor cover
- sensor
- cover
- 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
- 238000005192 partition Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims 3
Landscapes
- Fire-Detection Mechanisms (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
第１図は本考案の一実施例の外観を示す正面図
、第２図は第１図の底面図、第３図は第１図の縦
断面図、第４図は第１図の平面図、第５図は感知
器基台アツセンブリの分解斜視図、第６図はプリ
ント基板アツセンブリの分解斜視図、第７図はシ
ールドカバーアツセンブリの分解斜視図、第８図
は各アツセンブリの総合組立状況を分解して示す
斜視図である。
４……感知器基台、５……仕切壁、９……感知
器カバー、１１……シールドカバー、１５……シ
ールド板、１８……プリント基板。
Fig. 1 is a front view showing the appearance of one embodiment of the present invention, Fig. 2 is a bottom view of Fig. 1, Fig. 3 is a vertical sectional view of Fig. 1, and Fig. 4 is a plan view of Fig. 1. , Figure 5 is an exploded perspective view of the sensor base assembly, Figure 6 is an exploded perspective view of the printed circuit board assembly, Figure 7 is an exploded perspective view of the shield cover assembly, and Figure 8 is the overall assembly status of each assembly. FIG. 2 is an exploded perspective view. 4 ...sensor base, 5...partition wall, 9 ...sensor cover, 11...shield cover, 15...shield plate, 18...printed circuit board.
Claims (1)
中央に中空円筒体を突設し、この中空円筒体の側
壁に煙流入用の複数の透孔を設けた感知器カバー
と、有底筒状に成型した感知器基台でハウジング
を構成し、感知器基台を構成する仕切壁の内面を
略全体に渡つて覆う円形のシールド板を設け、前
記シールド板の上面に円形のプリント基板を載置
し、前記プリント基板の略中央に有底筒状のイオ
ン室を形成し、前記イオン室の側面全周に渡つて
複数の窓状の煙流入孔を形成し、かつ前記感知器
カバーの内面に沿つて、少なくとも前記感知器カ
バーの側壁、傾斜面、及び中空円筒体の底面の各
内面を覆うシールドカバーを具備し、シールド板
とシールドカバーはそれぞれ略最外周部で当接に
より導電接続したことを特徴とするイオン式煙感
知器のシールド構造。 A sensor cover has a hollow substantially truncated conical shape, has a hollow cylinder protruding from the center of the lower end of the inclined surface, and has a plurality of through holes for smoke inflow on the side wall of the hollow cylinder, and a sensor cover with a bottom. The housing is made up of a sensor base molded into a cylindrical shape, a circular shield plate is provided that covers almost the entire inner surface of the partition wall that constitutes the sensor base, and a circular printed circuit board is mounted on the top surface of the shield plate. a bottomed cylindrical ion chamber is formed approximately in the center of the printed circuit board, a plurality of window-shaped smoke inflow holes are formed around the entire side surface of the ion chamber, and the sensor cover is mounted on the printed circuit board. a shield cover that covers at least the inner surfaces of the side wall of the sensor cover, the inclined surface, and the bottom surface of the hollow cylindrical body; A shield structure of an ion type smoke detector characterized by the fact that it is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8369388U JPH0215191Y2 (en) | 1988-06-24 | 1988-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8369388U JPH0215191Y2 (en) | 1988-06-24 | 1988-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63192888U true JPS63192888U (en) | 1988-12-12 |
| JPH0215191Y2 JPH0215191Y2 (en) | 1990-04-24 |
Family
ID=30937513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8369388U Expired JPH0215191Y2 (en) | 1988-06-24 | 1988-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0215191Y2 (en) |
-
1988
- 1988-06-24 JP JP8369388U patent/JPH0215191Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0215191Y2 (en) | 1990-04-24 |