JPS59174539U - Safety equipment for pressure ventilation fans - Google Patents
Safety equipment for pressure ventilation fansInfo
- Publication number
- JPS59174539U JPS59174539U JP6868483U JP6868483U JPS59174539U JP S59174539 U JPS59174539 U JP S59174539U JP 6868483 U JP6868483 U JP 6868483U JP 6868483 U JP6868483 U JP 6868483U JP S59174539 U JPS59174539 U JP S59174539U
- Authority
- JP
- Japan
- Prior art keywords
- pressure ventilation
- current
- ventilation fans
- safety equipment
- ventilation fan
- 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
Landscapes
- Ventilation (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の有圧換気扇の構成図、第２図は従来の有
圧換気扇の電気回路図、第３図は本考案の一実施例にお
ける有圧換気扇の安全装置の構成図、第４図は本考案の
有圧換気扇の安全装置の電気回路図、第５図は有圧換気
扇の静圧と風量、電流と風量の特性曲線図である。
２・・・・・・有圧換気扇、３・・・・・・ファンモー
タ、５・・・・・・電流しゃ断器、６・・・・・・電流
検出器、７・・・・・・トランジスタ（制御手段）、１
２・・・・・・警報ブザ−。Figure 1 is a configuration diagram of a conventional pressure ventilation fan, Figure 2 is an electric circuit diagram of a conventional pressure ventilation fan, Figure 3 is a configuration diagram of a safety device for a pressure ventilation fan according to an embodiment of the present invention, and Figure 4 The figure is an electrical circuit diagram of the safety device for the pressure ventilation fan of the present invention, and FIG. 5 is a characteristic curve diagram of static pressure, air volume, current, and air volume of the pressure ventilation fan. 2... Pressurized ventilation fan, 3... Fan motor, 5... Current breaker, 6... Current detector, 7... Transistor (control means), 1
2... Alarm buzzer.
Claims (1)
流設定をもった電流しゃ断器と、この電流しゃ断器に直
列接続し、かつ２個のダイオードと１個のダイオードを
逆並列に接続した電流検出器と、上記電流しゃ断器に接
続した有圧換気扇のファンモータと、上記電流検出器の
両端に発生する電圧の有無により動作するトランジスタ
等の制御手段と、この手段により作動させられる警報ブ
ザーとを備えた有圧換気扇の安全装置。A current breaker with a current setting close to the current value at the limit of the operating static pressure of the pressure ventilation fan, connected in series to this current breaker, and two diodes and one diode connected in antiparallel. A connected current detector, a fan motor of a pressure ventilation fan connected to the current breaker, a control means such as a transistor that operates depending on the presence or absence of a voltage generated across the current detector, and is operated by this means. A safety device for pressure ventilation fans equipped with an alarm buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6868483U JPS59174539U (en) | 1983-05-09 | 1983-05-09 | Safety equipment for pressure ventilation fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6868483U JPS59174539U (en) | 1983-05-09 | 1983-05-09 | Safety equipment for pressure ventilation fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59174539U true JPS59174539U (en) | 1984-11-21 |
Family
ID=30198854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6868483U Pending JPS59174539U (en) | 1983-05-09 | 1983-05-09 | Safety equipment for pressure ventilation fans |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59174539U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5116451A (en) * | 1974-08-01 | 1976-02-09 | Nippon Denso Co | Fukakudokairono fuyuuzukoshohyojikairo |
-
1983
- 1983-05-09 JP JP6868483U patent/JPS59174539U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5116451A (en) * | 1974-08-01 | 1976-02-09 | Nippon Denso Co | Fukakudokairono fuyuuzukoshohyojikairo |
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