JPS5940292U - electric hoist - Google Patents
electric hoistInfo
- Publication number
- JPS5940292U JPS5940292U JP13617182U JP13617182U JPS5940292U JP S5940292 U JPS5940292 U JP S5940292U JP 13617182 U JP13617182 U JP 13617182U JP 13617182 U JP13617182 U JP 13617182U JP S5940292 U JPS5940292 U JP S5940292U
- Authority
- JP
- Japan
- Prior art keywords
- section
- direct current
- electric hoist
- converter
- converts
- 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
- Motor And Converter Starters (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の電気ホイストの駆動機構を示すブロック
図、第２図は従来の周波数変換器の内部構成を示すブロ
ック図、第３図は従来の周波数変換器の出力周波数特性
図、第４図は従来の周波数変換器を用いた電気ホイスト
の巻上特性図、第５図は本考案にかへる周波数変換器の
内部構成を示す回路図、第６図は本周波数変換器の出力
周波数特性図および第７図は本周波数変換器を用いた電
気ホイストの巻上特性図である。
２２・・・・・・コンバータ部、２３・・・・・・平滑
回路、２４・・・・・・インバータ部、２５・・・・・
・制御回路、３３・・・・・・スタート時間調整回路。Fig. 1 is a block diagram showing the drive mechanism of a conventional electric hoist, Fig. 2 is a block diagram showing the internal configuration of a conventional frequency converter, Fig. 3 is an output frequency characteristic diagram of a conventional frequency converter, and Fig. 4 is a block diagram showing the drive mechanism of a conventional electric hoist. The figure shows the hoisting characteristics of an electric hoist using a conventional frequency converter, Figure 5 is a circuit diagram showing the internal configuration of the frequency converter according to the present invention, and Figure 6 shows the output frequency of the frequency converter. The characteristic diagram and FIG. 7 are hoisting characteristic diagrams of an electric hoist using this frequency converter. 22...Converter section, 23...Smoothing circuit, 24...Inverter section, 25...
- Control circuit, 33...Start time adjustment circuit.
Claims (1)
流を平滑する平滑回路と、前記平滑された直流を方形波
交流出力に変換するインバータ部と、前記コンバータ部
、インバータ部の位相および周波数制御を行う制御回路
とから成り、かつ前記制御回路内に前記インバータ部か
ら出力される交流の出力応答時間を早めるスタート時間
調整回路を内蔵した周波数変換器を備えたことを特徴と
する電気ホイスト。a converter section that converts three-phase commercial AC into direct current, a smoothing circuit that smoothes the direct current, an inverter section that converts the smoothed direct current into square wave alternating current output, and phase and frequency control of the converter section and the inverter section. 1. An electric hoist comprising: a control circuit that performs the following: and a frequency converter having a built-in start time adjustment circuit for speeding up the output response time of the alternating current output from the inverter section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13617182U JPS5940292U (en) | 1982-09-08 | 1982-09-08 | electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13617182U JPS5940292U (en) | 1982-09-08 | 1982-09-08 | electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5940292U true JPS5940292U (en) | 1984-03-14 |
Family
ID=30306255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13617182U Pending JPS5940292U (en) | 1982-09-08 | 1982-09-08 | electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940292U (en) |
-
1982
- 1982-09-08 JP JP13617182U patent/JPS5940292U/en active Pending
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