CN2036726U - Single-phase ac motor starter - Google Patents
Single-phase ac motor starter Download PDFInfo
- Publication number
- CN2036726U CN2036726U CN 88218386 CN88218386U CN2036726U CN 2036726 U CN2036726 U CN 2036726U CN 88218386 CN88218386 CN 88218386 CN 88218386 U CN88218386 U CN 88218386U CN 2036726 U CN2036726 U CN 2036726U
- Authority
- CN
- China
- Prior art keywords
- motor
- starter
- phase
- alternating current
- phase alternating
- 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)
- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses a single-phase alternating current motor starter, being suitable for various single-phase alternating current motors. The utility model has the advantages of small size, low cost, and safe reliability. The single-phase alternating current motor starter which can be arranged inside a motor has no relation with powerful electricity, and the manufacturing processes of the motor is not changed. The power source of the starter is provided by a current transformer.
Description
The utility model is a kind of single-phase AC motor starter.
Single-phase AC motor should burn its auxiliary winding outage operation after starting to prevent motor.At present, the mode of single-phase AC motor starting back auxiliary winding outage has following several: (1) mechanical centrifugal switch, and when reaching rated speed behind motor starting, it relies on action of centrifugal force, and mechanical centrifugal switch contact is thrown away cut off the auxiliary winding power supply.Its major defect is: owing to the reason of technology assembling and material aspect, centrifugal switch gets rid of not open after might motor starting, or in running because situations such as under-voltage, overload, stall occur, send a telegraph engine speed and descend, the centrifugal switch of being thrown away is closed again.Single-phase AC motor burns, and this kind of polyphyly reason causes.(2) centre cap formula is extracted the power supply of two centre taps as starter for the Lundell single-phase AC motor out at the starting winding.But its shortcoming is to make the manufacturing process of motor become complicated, and can not be suitable for for the single-phase motor of general band auxiliary winding.(3) provide power supply by transformer or resistance-capacitance depressurization mode to starter, but the volume of transformer is big, is not easy to be installed in motor interior.Resistance-capacitance depressurization mode and forceful electric power are contacted directly, and have increased unsafe factor.
The characteristics of the utility model starter are: it adopts the very little current transformer of volume of a special coiling to detect initiating signal and the starter power supply is provided, and only needs several electronic components seldom to form energising or the outage that control circuit is controlled auxiliary winding.Its advantage is that any single-phase AC motor all is suitable for, and does not change the motor manufacturing process, can be installed on the inner end cap of motor, does not have with forceful electric power and gets in touch, and safe and reliable, cost is very cheap.
Accompanying drawing is an embodiment of the present utility model, narrates the operation principle of the utility model starter below in conjunction with embodiment.
In the accompanying drawing: (*) is a phase line of AC network, (L) is the zero line of electrical network.(LB) be a current transformer that volume is very little, phase line (*) is passed therebetween.Individual event alternating current motor when starting or when normally moving, induced potential will appear in two ends (LB).After the rectifier bridge rectification that this voltage is made up of diode D1～D4 again by capacitor C1 filtering becoming direct-current power supply triode (BG) as working power.(BG) the emitter sensitive mini-relay (J) of connecting connects power cathode, (BG) collector electrode connects positive source, R is the biasing resistance of (BG), the resistance of adjusting R makes that (BG) was in conducting state when motor normally moved, the normally-closed contact and the auxiliary winding of relay (J) are in series, and utilize this contact to control the break-make of auxiliary winding.Capacitor C2 is connected across between the base stage and power cathode of triode (BG), makes relay (J) time-delay adhesive in motor starting moment.
This starter is realized the element of auxiliary winding break-make, both can be relay, also can be bidirectional triode thyristor.
After whole starter assembling finished, the usable resins sealing was an one, only reserved the usefulness of several terminals for wiring.
Claims (1)
- A kind of single-phase AC motor starter, it is by capacitor c1 and c2, and resistance R, triode (BG), relay (J) and power supply are formed; It is characterized in that: its power supply is provided by a current transformer (LB).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88218386 CN2036726U (en) | 1988-09-16 | 1988-09-16 | Single-phase ac motor starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88218386 CN2036726U (en) | 1988-09-16 | 1988-09-16 | Single-phase ac motor starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2036726U true CN2036726U (en) | 1989-04-26 |
Family
ID=4850823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88218386 Pending CN2036726U (en) | 1988-09-16 | 1988-09-16 | Single-phase ac motor starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2036726U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294694C (en) * | 2004-11-24 | 2007-01-10 | 常熟市天银机电有限公司 | Mutual-inductance contactless starter |
| CN101814875A (en) * | 2010-04-23 | 2010-08-25 | 常熟市天银机电有限公司 | Mutual inductance type contactless starter used for single-phase alternating current motor |
| CN101847959A (en) * | 2010-04-23 | 2010-09-29 | 常熟市天银机电有限公司 | Novel mutual-inductance contactless starter |
| CN104104276A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Novel mutual inductance type non-contact current starter used for commercial refrigeration compressor motor |
| CN104104275A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Novel mutual inductance contactless current starter for commercial refrigeration compressor motor |
| CN104104278A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Mutual inductance type non-contact current starter used for commercial refrigeration compressor motor |
-
1988
- 1988-09-16 CN CN 88218386 patent/CN2036726U/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294694C (en) * | 2004-11-24 | 2007-01-10 | 常熟市天银机电有限公司 | Mutual-inductance contactless starter |
| CN101814875A (en) * | 2010-04-23 | 2010-08-25 | 常熟市天银机电有限公司 | Mutual inductance type contactless starter used for single-phase alternating current motor |
| CN101847959A (en) * | 2010-04-23 | 2010-09-29 | 常熟市天银机电有限公司 | Novel mutual-inductance contactless starter |
| CN104104276A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Novel mutual inductance type non-contact current starter used for commercial refrigeration compressor motor |
| CN104104275A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Novel mutual inductance contactless current starter for commercial refrigeration compressor motor |
| CN104104278A (en) * | 2014-07-11 | 2014-10-15 | 常熟市天银机电股份有限公司 | Mutual inductance type non-contact current starter used for commercial refrigeration compressor motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2036726U (en) | Single-phase ac motor starter | |
| CN1034618C (en) | Full-function protector for electric machine | |
| CN2148421Y (en) | Full protector for motor | |
| CN2171620Y (en) | Dissipation braking device for dewtering motor of household washing machine | |
| CN2240806Y (en) | Silicon controlled explosion-proof switch | |
| CN2202991Y (en) | Three-phase four-wire protector | |
| CN2163472Y (en) | Phase loss overload protector for electric motor | |
| CN2175983Y (en) | Protecting starter of single-wire motor | |
| CN2138852Y (en) | On-line anti-burning switch of motor | |
| CN2155036Y (en) | Water level controller with automatic feeding water | |
| CN2200185Y (en) | Terminal box for single phase electric energy meter | |
| CN2151566Y (en) | Open-phase protector for three-phase ac motor | |
| CN2375020Y (en) | Phase failure protective switch | |
| CN2134731Y (en) | Protective means for solid-state relay | |
| CN2195149Y (en) | Solid phase failure protector | |
| CN100356649C (en) | Cable fixed zero-power miniaturized over-current relay | |
| CN2164605Y (en) | Phase-loose protector | |
| CN2132324Y (en) | Phase-failure protector for electric machine | |
| CN2338913Y (en) | Electronic starter | |
| CN2279033Y (en) | Single-phase motor by applying dc to brake | |
| SU1624645A1 (en) | Device for braking three-phase induction motor | |
| CN2129994Y (en) | Micro power consumption phase interruption protector | |
| CN2313321Y (en) | Three-phase energy-saving asynchronous motor | |
| CN2149061Y (en) | Star-angle bidirectional automatic conversion device for three-phase motor | |
| CN2335310Y (en) | Low-voltage electronic switch controlled foods working machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |