CN203326841U - Single-phase motor capable of changing winding structure and improving start torque - Google Patents
Single-phase motor capable of changing winding structure and improving start torque Download PDFInfo
- Publication number
- CN203326841U CN203326841U CN2013200465461U CN201320046546U CN203326841U CN 203326841 U CN203326841 U CN 203326841U CN 2013200465461 U CN2013200465461 U CN 2013200465461U CN 201320046546 U CN201320046546 U CN 201320046546U CN 203326841 U CN203326841 U CN 203326841U
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- phase motor
- over switch
- main winding
- tap
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Abstract
The utility model provides a single-phase motor capable of changing a winding structure and improving a start torque. Start characteristics of the single-phase motor are better than those of a YL series, or operation characteristics of the single-phase motor are better than those of the YL series. Loops of a main winding and a secondary winding are designed according to electro-magnetic parameters of the YL series, taps are respectively led out between the windings, one ends of the main wing and one end of the secondary winding are connected together and then are connected with an external power source, the other end of the external power source is connected with a fixed connection point of a change-over switch, the taps of the main winding and the secondary winding are respectively connected with two connection points of a first position of a moving arm of the change-over switch through a start capacitor, and the other ends of the main winding and the secondary winding are respectively connected with two connection points of a second position of the moving arm of the change-over switch through an operation capacitor.
Description
Technical field
The utility model relates to a kind of change single-phase motor winding construction, at electric motor starting, when running well, utilizes switch transition to access respectively the winding of the different numbers of turn, improves the monopole asynchronous motor of detent torque.
Background technology
Because monophase current can't form rotating magnetic field, " phase shift " effect of the auxiliary winding series capacitance of dependence and main winding arranged in dislocation has just been arranged, form the monopole asynchronous motor of stator rotating magnetic field.
Monopole asynchronous motor is after reaching certain rotating speed, because the effect of rotator inertia only depends on main winding just can keep on the go, so the single-phase motor of what is called " YC " series standard is just arranged; But when relatively high power heavy service, auxiliary winding and the rotator inertia power superposition of series connection low capacity electric capacity, can maintain better stable rotary power, the obvious this single-phase motor (Fig. 1) that simultaneously has both what is called " YL " series standard of startup and the two groups of electric capacity that turn round, better than " YC " serial operation characteristic.
In brief, because after startup finishes to enter normal operation, the motor of " YL " series is than " YC " series with power, it is the electric current that reduces main winding, use in the auxiliary winding loop of series connection low capacity electric capacity, because taking into account the electric capacity started with the running different capabilities, auxiliary winding induction reactance also is greater than the latter.Although the operation torque (breakdown torque) of " YL " series and the stability of operation are better than the latter, its detent torque is obvious also is less than the latter.
The utility model content
The purpose of this utility model, be to provide a kind of starting characteristic and be better than " YL " series, or in other words operation characteristic is better than " YC " serial monopole asynchronous motor.
Realize technical measures, yes utilizes switch transition, at electric motor starting and normal motion time, does not access different winding parameters.Concrete way is: the number of turn of determining main winding and auxiliary winding by the electromagnetic parameter of " YL " series; Draw respectively as shown in Figure 2 tap (CZ), (CF) in the middle of winding; One end of main winding and auxiliary winding links together and is connected with external power one end, the other end of external power connects the fixed contact of change over switch, the tap of main winding, the tap of auxiliary winding connect respectively two contacts of swing arm primary importance of change over switch by start-up capacitance, the other end of main winding, the auxiliary winding other end connect respectively two contacts of the swing arm second place of change over switch by running electric capacity.
During electric motor starting, change over switch is in primary importance, and start-up capacitance connects the part auxiliary winding work that tap determines; When reaching desired speed and normally moving, change over switch goes to the second place, and start-up capacitance disconnects running electric capacity and connects whole auxiliary winding work (main winding and auxiliary winding synchronous operation dislocation summary).
Consider the restriction of contact capacity, for the motor of relatively high power, can only in the middle of auxiliary winding, draw tap (Fig. 3) by motionless main winding.Change over switch in figure (K), can directly be used the transformation of common centrifugal switch, and other are such as using centrifugal switch to coordinate the modes such as miniature relay synchronization action, has many background technologies can be for reference, do not describe in detail.
The utility model is specially adapted to the remote countryside that there was a serious electricity shortage, can be under very low voltage, and reliable the startup normally moves.
The accompanying drawing explanation
Fig. 1 is common " YL " serial single-phase electromotor circuit schematic diagram.
Fig. 2 is the circuit theory diagrams that simultaneously change the major-minor winding connection.
Fig. 3 is the circuit theory diagrams that only change the auxiliary winding wiring.
Each map logo is unitedly described as follows:
LZ is main winding; LF is auxiliary winding; QC is start-up capacitance; YC is running electric capacity; K is change over switch; CZ, CF are respectively the tap of major-minor winding.
Embodiment
Introduce a specific embodiment below in conjunction with Fig. 3.
At first as required power is selected suitable support, by the parameter of " YL " series standard appropriate design main winding and auxiliary winding; Then draw tap (CF) at 3/4 place of the total figure number of auxiliary winding; The capacity of supporting start-up capacitance (QC), increase (choosing according to experimental result) relatively than " YL " series.
Switch in figure (K) is one group of transfer contact, and common centrifugal switch only has one group of normally-closed contact, can install contact additional in the former position as corresponding moving contact on spacing baffle plate.
Press 3KW monophase machine of the actual transformation of the way of above-mentioned parameter, the measured result of supporting pulverizer operation, when supply power voltage is reduced to 145V, still can start smoothly normal operation, and without same power " YL " motor of transforming (reality only takes not use the mode of tap-change to test), when 160V voltage, can't complete start-up course.
Claims (2)
1. one kind changes the single-phase motor that winding construction improves detent torque, it is characterized in that: draw respectively tap in the middle of main winding and auxiliary winding, one end of main winding and auxiliary winding links together and is connected with external power one end, the other end of external power connects the fixed contact of change over switch, the tap of main winding, the tap of auxiliary winding connect respectively two contacts of swing arm primary importance of change over switch by start-up capacitance, the other end of main winding, the auxiliary winding other end connect respectively two contacts of the swing arm second place of change over switch by running electric capacity.
2. change according to claim 1 the single-phase motor that winding construction improves detent torque, it is characterized in that: motionless main winding is only drawn tap in the middle of auxiliary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200465461U CN203326841U (en) | 2013-01-15 | 2013-01-15 | Single-phase motor capable of changing winding structure and improving start torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200465461U CN203326841U (en) | 2013-01-15 | 2013-01-15 | Single-phase motor capable of changing winding structure and improving start torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326841U true CN203326841U (en) | 2013-12-04 |
Family
ID=49666133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200465461U Expired - Lifetime CN203326841U (en) | 2013-01-15 | 2013-01-15 | Single-phase motor capable of changing winding structure and improving start torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326841U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730971A (en) * | 2014-01-17 | 2014-04-16 | 单庚明 | Motor and manufacturing method thereof |
| CN104767175A (en) * | 2014-01-02 | 2015-07-08 | 徐东旭 | Intelligent high-efficiency energy-saving single-phase asynchronous motor |
| CN108429407A (en) * | 2018-05-28 | 2018-08-21 | 黄石东贝电器股份有限公司 | A kind of tap electric machine assembly |
-
2013
- 2013-01-15 CN CN2013200465461U patent/CN203326841U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767175A (en) * | 2014-01-02 | 2015-07-08 | 徐东旭 | Intelligent high-efficiency energy-saving single-phase asynchronous motor |
| CN103730971A (en) * | 2014-01-17 | 2014-04-16 | 单庚明 | Motor and manufacturing method thereof |
| CN108429407A (en) * | 2018-05-28 | 2018-08-21 | 黄石东贝电器股份有限公司 | A kind of tap electric machine assembly |
| CN108429407B (en) * | 2018-05-28 | 2024-05-17 | 黄石东贝压缩机有限公司 | Tapping motor assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Weihai Shunyi Electric Co.,Ltd. Assignor: Xu Dongxu Contract record no.: 2014370000164 Denomination of utility model: Single-phase motor capable of changing winding structure and improving start torque Granted publication date: 20131204 License type: Exclusive License Record date: 20141119 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |