JPS6214997U - - Google Patents

Info

Publication number
JPS6214997U
JPS6214997U JP1985104428U JP10442885U JPS6214997U JP S6214997 U JPS6214997 U JP S6214997U JP 1985104428 U JP1985104428 U JP 1985104428U JP 10442885 U JP10442885 U JP 10442885U JP S6214997 U JPS6214997 U JP S6214997U
Authority
JP
Japan
Prior art keywords
fan
relay
comparison
detection unit
integration circuit
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
Application number
JP1985104428U
Other languages
Japanese (ja)
Other versions
JPH0649120Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985104428U priority Critical patent/JPH0649120Y2/en
Publication of JPS6214997U publication Critical patent/JPS6214997U/ja
Application granted granted Critical
Publication of JPH0649120Y2 publication Critical patent/JPH0649120Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Stopping Of Electric Motors (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Protection Of Generators And Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例に係るフアンセン
サの構造を略示したブロツク図、第２図は第１図
に示したフアンセンサの具体的回路構成図、第３
図は第２図に示したフアンセンサの各部の動作波
形図、第４図は従来のフアンセンサの構造を略示
したブロツク図、第５図はフアンセンサをターボ
分子ポンプに使用した場合の説明図である。 １…検出部、２…比較部、３…積分回路、４…
第１のリレー、５…タイマ、６…第２のリレー。 FIG. 1 is a block diagram schematically showing the structure of a fan sensor according to an embodiment of this invention, FIG. 2 is a specific circuit configuration diagram of the fan sensor shown in FIG. 1, and FIG.
The figure is an operational waveform diagram of each part of the fan sensor shown in Figure 2, Figure 4 is a block diagram schematically showing the structure of a conventional fan sensor, and Figure 5 is an explanation of when the fan sensor is used in a turbo molecular pump. It is a diagram. 1...Detection section, 2...Comparison section, 3...Integrator circuit, 4...
First relay, 5...timer, 6...second relay.

Claims (1)

【実用新案登録請求の範囲】 フアンモータの羽根の回転を検出する検出部と
、 前記検出部からのパルス信号の周期を、前記フ
アンモータの基準回転数に対応して予め定められ
た基準周期と比較する比較部と、 モータ起動時から一定時間の間、前記比較部の
比較動作を停止させるタイマと、 前記比較部から与えられる比較出力を積分する
積分回路と、 前記積分回路の出力によつて制御されるノーマ
ルクローズ型の第１のリレーとを具備したフアン
センサ本体を含み、 前記第１のリレーのリレー接点と直列に接続さ
れ、フアンセンサ本体の電源によつて駆動される
ノーマルオープン型の第２のリレーを備えたこと
を特徴とするフアンセンサ。[Claims for Utility Model Registration] A detection unit that detects the rotation of blades of a fan motor, and a cycle of a pulse signal from the detection unit that is a reference cycle predetermined corresponding to a reference rotation speed of the fan motor. a timer that stops the comparison operation of the comparison section for a certain period of time from motor startup; an integration circuit that integrates the comparison output given from the comparison section; and an output of the integration circuit. A normally open type fan sensor body is connected in series with a relay contact of the first relay and is driven by the power source of the fan sensor body. A fan sensor comprising a second relay.
JP1985104428U 1985-07-08 1985-07-08 Fan sensor Expired - Lifetime JPH0649120Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985104428U JPH0649120Y2 (en) 1985-07-08 1985-07-08 Fan sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985104428U JPH0649120Y2 (en) 1985-07-08 1985-07-08 Fan sensor

Publications (2)

Publication Number Publication Date
JPS6214997U true JPS6214997U (en) 1987-01-29
JPH0649120Y2 JPH0649120Y2 (en) 1994-12-12

Family

ID=30977914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985104428U Expired - Lifetime JPH0649120Y2 (en) 1985-07-08 1985-07-08 Fan sensor

Country Status (1)

Country Link
JP (1) JPH0649120Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213796A (en) * 1985-07-10 1987-01-22 Shimadzu Corp Air cooling type turbo-molecular pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102513A (en) * 1978-01-27 1979-08-13 Fuji Xerox Co Ltd Trouble detector for dc motor control circuit
JPS5748086A (en) * 1980-09-03 1982-03-19 Oriental Motor Co Ltd Electric switch controller
JPS6055877A (en) * 1983-09-07 1985-04-01 Hitachi Ltd Overload protecting device of dc motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102513A (en) * 1978-01-27 1979-08-13 Fuji Xerox Co Ltd Trouble detector for dc motor control circuit
JPS5748086A (en) * 1980-09-03 1982-03-19 Oriental Motor Co Ltd Electric switch controller
JPS6055877A (en) * 1983-09-07 1985-04-01 Hitachi Ltd Overload protecting device of dc motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213796A (en) * 1985-07-10 1987-01-22 Shimadzu Corp Air cooling type turbo-molecular pump

Also Published As

Publication number Publication date
JPH0649120Y2 (en) 1994-12-12

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