JPH0292092U - - Google Patents
Info
- Publication number
- JPH0292092U JPH0292092U JP17066388U JP17066388U JPH0292092U JP H0292092 U JPH0292092 U JP H0292092U JP 17066388 U JP17066388 U JP 17066388U JP 17066388 U JP17066388 U JP 17066388U JP H0292092 U JPH0292092 U JP H0292092U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- rotor
- frequency
- induction motor
- control means
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Non-Positive Displacement Air Blowers (AREA)
Description
図面は本考案の一実施例を示し、第１図は模式
的な構成説明図、第２図は制御手段のブロツク図
、第３図は作用説明図である。
２……ロータ、８……インダクシヨンモータ、
９……高周波インバータ、１０……制御手段、１
１……検出手段（回転センサ）。
The drawings show one embodiment of the present invention, with FIG. 1 being a schematic diagram for explaining the configuration, FIG. 2 being a block diagram of the control means, and FIG. 3 being a diagram for explaining the operation. 2... Rotor, 8... Induction motor,
9... High frequency inverter, 10... Control means, 1
1...Detection means (rotation sensor).
Claims (1)
のインダクシヨンモータに給電を行う高周波イン
バータと、この高周波インバータの少なくとも出
力電圧を可変し得る制御手段と、前記ロータの実
回転数を検出する検出手段とを具備してなり、こ
の検出手段による検出値が予め設定した定速運転
時におけるインバータの出力周波数近傍に達した
時に、制御手段によつて前記インバータの出力電
圧を降圧するように構成したことを特徴とする分
子ポンプの駆動装置。 It includes an induction motor that drives a rotor, a high-frequency inverter that supplies power to the induction motor, a control means that can vary at least the output voltage of the high-frequency inverter, and a detection means that detects the actual rotational speed of the rotor. The control means is configured to step down the output voltage of the inverter when the detected value by the detection means reaches a preset output frequency of the inverter during constant speed operation. Molecular pump drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17066388U JPH0648157Y2 (en) | 1988-12-30 | 1988-12-30 | Molecular pump drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17066388U JPH0648157Y2 (en) | 1988-12-30 | 1988-12-30 | Molecular pump drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0292092U true JPH0292092U (en) | 1990-07-20 |
| JPH0648157Y2 JPH0648157Y2 (en) | 1994-12-07 |
Family
ID=31461802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17066388U Expired - Lifetime JPH0648157Y2 (en) | 1988-12-30 | 1988-12-30 | Molecular pump drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648157Y2 (en) |
-
1988
- 1988-12-30 JP JP17066388U patent/JPH0648157Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0648157Y2 (en) | 1994-12-07 |
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