CN203119770U - Multi-motor-driving frequency-converting and energy-saving device based on common DC bus and pumping unit - Google Patents
Multi-motor-driving frequency-converting and energy-saving device based on common DC bus and pumping unit Download PDFInfo
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- CN203119770U CN203119770U CN201220715162XU CN201220715162U CN203119770U CN 203119770 U CN203119770 U CN 203119770U CN 201220715162X U CN201220715162X U CN 201220715162XU CN 201220715162 U CN201220715162 U CN 201220715162U CN 203119770 U CN203119770 U CN 203119770U
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN201220715162XU CN203119770U (en) | 2012-12-21 | 2012-12-21 | Multi-motor-driving frequency-converting and energy-saving device based on common DC bus and pumping unit |
CN201210559986.7A CN103887988A (en) | 2012-12-21 | 2012-12-21 | Multi-motor-driving frequency-converting energy-saving device based on common DC bus and pumping unit |
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CN201220715162XU CN203119770U (en) | 2012-12-21 | 2012-12-21 | Multi-motor-driving frequency-converting and energy-saving device based on common DC bus and pumping unit |
CN201210559986.7A CN103887988A (en) | 2012-12-21 | 2012-12-21 | Multi-motor-driving frequency-converting energy-saving device based on common DC bus and pumping unit |
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CN203119770U true CN203119770U (en) | 2013-08-07 |
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CN201220715162XU Expired - Fee Related CN203119770U (en) | 2012-12-21 | 2012-12-21 | Multi-motor-driving frequency-converting and energy-saving device based on common DC bus and pumping unit |
CN201210559986.7A Pending CN103887988A (en) | 2012-12-21 | 2012-12-21 | Multi-motor-driving frequency-converting energy-saving device based on common DC bus and pumping unit |
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CN201210559986.7A Pending CN103887988A (en) | 2012-12-21 | 2012-12-21 | Multi-motor-driving frequency-converting energy-saving device based on common DC bus and pumping unit |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103956942A (en) * | 2014-04-04 | 2014-07-30 | 合康变频科技(武汉)有限公司 | Device for driving multiple pumping units based on common direct current bus |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104767391A (en) * | 2015-04-21 | 2015-07-08 | 贾晓宏 | Controllable frequency converter |
CN111052582B (en) * | 2017-09-14 | 2023-08-29 | 西门子股份公司 | Frequency converter, frequency converter assembly and control method of frequency converter assembly |
CN110943674A (en) * | 2019-12-25 | 2020-03-31 | 北京达睿企科技有限公司 | Rectifier and low-voltage inverter array power supply system |
US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
-
2012
- 2012-12-21 CN CN201220715162XU patent/CN203119770U/en not_active Expired - Fee Related
- 2012-12-21 CN CN201210559986.7A patent/CN103887988A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103956942A (en) * | 2014-04-04 | 2014-07-30 | 合康变频科技(武汉)有限公司 | Device for driving multiple pumping units based on common direct current bus |
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Publication number | Publication date |
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CN103887988A (en) | 2014-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HICONICS DRIVE TECHNOLOGY CO., LTD. Effective date: 20140212 |
|
CB03 | Change of inventor or designer information |
Inventor after: Jiang Xianglong Inventor after: Guo Zhengang Inventor before: Guo Zhengang Inventor before: Ma Ning |
|
CB03 | Change of inventor or designer information | ||
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GUO ZHENGANG MA NING TO: JIANG XIANGLONG GUO ZHENGANG |
|
TR01 | Transfer of patent right |
Effective date of registration: 20140212 Address after: 1109, room 100085, block A, No. 22 information road, Beijing, Haidian District Patentee after: Beijing Techeasy Energy Technology Co., Ltd. Patentee after: Hop Technology (Wuhan) Co., Ltd. Address before: 1109, room 100085, block A, No. 22 information road, Beijing, Haidian District Patentee before: Beijing Techeasy Energy Technology Co., Ltd. |
|
TR01 | Transfer of patent right | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20131221 |