CN201113901Y - Asynchronous motor dedicated automatic electricity saver circuit - Google Patents
Asynchronous motor dedicated automatic electricity saver circuit Download PDFInfo
- Publication number
- CN201113901Y CN201113901Y CNU2007201486008U CN200720148600U CN201113901Y CN 201113901 Y CN201113901 Y CN 201113901Y CN U2007201486008 U CNU2007201486008 U CN U2007201486008U CN 200720148600 U CN200720148600 U CN 200720148600U CN 201113901 Y CN201113901 Y CN 201113901Y
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- Prior art keywords
- electricity
- frequency converter
- asynchronous motor
- circuit
- utility
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Abstract
The utility model relates to an automatic electricity economizer circuit exclusively used for an asynchronous motor, comprising a break, a changeover switch, two intermediate relays, three contactors and a frequency converter, which are connected by circuits; the utility model realizes the switch between three states of electricity saving, bypass and stopping. The automatic electricity economizer circuit provided by the utility model has the advantages of ensuring the continuity, reliability and safety of the motor operation, eliminating worries of pure frequency converter faults affecting the motor operation, widening the application range of the electricity saving of the frequency converter and maximally exerting the source electricity saving function of the frequency converter, along with the simple and reasonable circuit design and manufacturing process and convenient equipment operation.
Description
Technical field:
The utility model relates to a kind of Special Automatic electricity-saving appliance circuit of being made up of frequency converter of asynchronous motor.
Background technology:
In energy-saving and emission-reduction advanced technology of applying at present and equipment, occupy suitable proportion in the economize on electricity of automatic frequency-conversion economize on electricity product asynchronous motor, and brought into play good economize on electricity effect.But simple frequency converter is connected in the Motor Control circuit, and frequency converter self has only a kind of state of economize on electricity, can't satisfy the requirement that when frequency converter breaks down load continues reliable and secure operation.Owing to have such shortcoming, make frequency converter be subjected to considerable restraint, thereby the source electricity-saving function of frequency converter extensively do not brought into play as yet in the application in asynchronous motor economize on electricity field.
Summary of the invention:
The utility model purpose of design provides a kind of limitation simple in structure, easy to operate, no, the cheap Special Automatic electricity-saving appliance circuit of asynchronous motor of investment.Motor can't normally move when solution was broken down at simple frequency converter shortcoming and problem guarantee continuity, reliability and the fail safe of motor operation, enlarge the application of frequency converter economize on electricity, bring into play the source electricity-saving function of frequency converter to greatest extent.
For reaching above-mentioned purpose, the Special Automatic electricity-saving appliance circuit of the asynchronous motor that the utility model provides comprises a circuit breaker, a change over switch, two auxiliary relays, three contactors, a frequency converter of connecting by circuit; Realize economize on electricity, bypass and stop the conversion of three kinds of states.
Described circuit breaker has the function of connecting and cutting off the electricity supply; The circuit breaker that closes, power connection, whole automatic electricity saver circuit is charged, and power supply indicator lights; The shutdown device, dump.Described change over switch has economize on electricity, bypass and stops (neutral gear) three gears, is used for the Special Automatic electricity-saving appliance state of asynchronous motor and switches.The requirement of described auxiliary relay compounding practice, execution command is transmitted signal, changing the operating state of circuit, thereby realizes the purpose of set control or protection.Described contactor utilizes main contacts to open and close circuit, carries out control command with auxiliary contact.Described frequency converter is the main frame of the Special Automatic electricity-saving appliance of asynchronous motor, by adjustment and the setting to running frequency, torque, pressure and other parameters value, under the prerequisite that satisfies the load needs, reaches the purpose of automatic economize on electricity.
The utility model also comprises a fuse, and it is connected between circuit breaker and the change over switch, this fuse, i.e. and insurance (silk) prevents to transship and open circuit as the error protection of lead and equipment, and it can satisfy the technical conditions relevant with electric equipment.
The circuit that the utility model provides, it can overcome the shortcoming that simple frequency converter can only series operation, and the problem that motor can't normally move when solving frequency converter failure guarantees continuity, reliability and the fail safe of motor operation.It can eliminate the misgivings to frequency converter failure state influence operation, enlarges the market application of frequency converter economize on electricity, brings into play the source electricity-saving function of frequency converter to greatest extent.This circuit design and manufacture craft are simple and direct, and operation of equipment is convenient.
The circuit that the utility model provides has the characteristics of novelty, advance, practicality, reliability.
Description of drawings
Fig. 1 is the Special Automatic electricity-saving appliance circuit diagram of asynchronous machine.
Embodiment
Below in conjunction with Fig. 1, describe a kind of better embodiment of the present utility model in detail:
What Fig. 1 described is the Special Automatic electricity-saving appliance circuit of asynchronous motor that the utility model provides, comprise a circuit breaker connecting by circuit 1, change over switch 2, two auxiliary relays 301 and 302, three contactors 401,402 and 403, frequency converters 6; Realize economize on electricity, bypass and stop the conversion of three kinds of states.
The utility model also comprises a fuse 5, and it is connected between circuit breaker 1 and the change over switch 2.
Described electricity-saving state is exactly: main switch in the machine that closes, and promptly circuit breaker 1, and entire circuit is charged, and power supply indicator is bright.When change over switch 2 was pushed the economize on electricity gear, the control power supply made contactor 402 get electric adhesive through the normally closed contact of auxiliary relay 301; In the time of contactor 402 adhesives, the auxiliary normal opened contact of contactor 402 becomes closing point, and make contactor 403 get electric adhesive, in the time of contactor 403 adhesives, the auxiliary normal opened contact of contactor 403 becomes closing point, so auxiliary relay 302 gets electric adhesive, make the normally closed contact of auxiliary relay 302 open, the normal opened contact closure, normally closed contact and the closed normal opened contact turning circuit of auxiliary relay 302 by auxiliary relay 301, economize on electricity indicator light 701 is lighted, realize the Special Automatic electricity-saving appliance electricity-saving function of asynchronous motor.
Described non-electricity-saving state is exactly: when change over switch 2 was pushed non-economize on electricity gear, the control power supply made contactor 401 adhesives through the normally closed contact of auxiliary relay 302; In the time of contactor 401 adhesives, auxiliary normal opened contact closure through contactor 401, make auxiliary relay 301 get electric adhesive, make the normally closed contact of auxiliary relay 301 open, the normal opened contact closure, at this moment power supply lights bypass indicator light 702 through the normally closed contact and the closed normal opened contact turning circuit of contactor 401 of contactor 402, show that the Special Automatic electricity-saving appliance circuit of asynchronous motor all disconnects, bypass functionality is realized.
Change over switch 2 is pushed between economize on electricity and the bypass during neutral position, and the Special Automatic electricity-saving appliance of asynchronous motor is in the halted state that economize on electricity and bypass functionality all do not move.
Claims (2)
1. the Special Automatic electricity-saving appliance circuit diagram of asynchronous motor is characterized in that, comprises a circuit breaker, a change over switch, two auxiliary relays, three contactors, a frequency converter of connecting by circuit; Realize economize on electricity, bypass and stop the conversion of three kinds of states;
Described change over switch is provided with economize on electricity, bypass and stops three gears of neutral gear.
2. the Special Automatic electricity-saving appliance circuit diagram of asynchronous motor as claimed in claim 1 is characterized in that also comprise a fuse, it is connected between circuit breaker and the change over switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201486008U CN201113901Y (en) | 2007-05-09 | 2007-05-09 | Asynchronous motor dedicated automatic electricity saver circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201486008U CN201113901Y (en) | 2007-05-09 | 2007-05-09 | Asynchronous motor dedicated automatic electricity saver circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113901Y true CN201113901Y (en) | 2008-09-10 |
Family
ID=39965649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201486008U Expired - Fee Related CN201113901Y (en) | 2007-05-09 | 2007-05-09 | Asynchronous motor dedicated automatic electricity saver circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113901Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893228B (en) * | 2009-05-19 | 2012-08-08 | 北京高和华泰节能环保科技有限公司 | Circuit of intelligent power saving device for heating boiler system |
-
2007
- 2007-05-09 CN CNU2007201486008U patent/CN201113901Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893228B (en) * | 2009-05-19 | 2012-08-08 | 北京高和华泰节能环保科技有限公司 | Circuit of intelligent power saving device for heating boiler system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Liming Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Wu Liming Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20130509 |