CN201839172U - Dual-capacitor type single-phase asynchronous motor with two main windings - Google Patents
Dual-capacitor type single-phase asynchronous motor with two main windings Download PDFInfo
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- CN201839172U CN201839172U CN2010205399509U CN201020539950U CN201839172U CN 201839172 U CN201839172 U CN 201839172U CN 2010205399509 U CN2010205399509 U CN 2010205399509U CN 201020539950 U CN201020539950 U CN 201020539950U CN 201839172 U CN201839172 U CN 201839172U
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Abstract
The utility model discloses a dual-capacitor type single-phase asynchronous motor with two main windings, belonging to single-phase alternating-current asynchronous motor. The dual-capacitor type single-phase asynchronous motor structurally comprises main windings and a secondary winding of a motor stator, wherein the motor stator is provided with the two main windings and the secondary winding; the first main winding is directly connected with a 220V alternating-current power supply; and the second main winding and the secondary winding are respectively connected with capacitors in series and then are connected with the 220V alternating-current power supply. In the dual-capacitor type single-phase asynchronous motor with two main windings, the starting torque times equal to that of the resistance starting type asynchronous motor can be obtained without need of starting a switch, the starting current time is less, the power factor is high, so that the operating efficiency can be improved, or the copper-iron material can saved. The dual-capacitor type single-phase asynchronous motor is an ideal updated product for replacing the resistance starting type asynchronous motor and is widely applicable to places needing medium starting torque, such as small machine tools, blowers, medical instruments and compressors of refrigerators and the like.
Description
Technical field
The utility model relates to a kind of single phase alternating current (A.C.) asynchronous motor, specifically a kind of double-capacitance monopole asynchronous motor that two main windings are arranged.
Background technology
Existing single phase alternating current (A.C.) asynchronous motor kind is a lot, mainly contains resistance starting formula, capacitor start formula, capacitor operating type, capacitor start operating type (two-capacitance capacitive formula) and shaded-pole etc.Wherein the detent torque multiple is big resistance starting formula, capacitor start formula and capacitor start operating type, and their common shortcomings need starting switch exactly.Especially resistance starting formula asynchronous motor, it has only medium detent torque multiple, and maximum starting current multiple is but arranged, and running efficiency and power factor are all low.Homemade YU series resistance startup formula asynchronous motor and YY series capacitor operating type asynchronous motor more just can be found out that the shortcoming of resistance starting formula asynchronous motor is very serious.Such as, power output is all 180 watts, and synchronous speed all is 3000 rev/mins, and resistance starting formula asynchronous motor need be with No. 71 supports, and the capacitor operating type asynchronous motor only need be with No. 63 supports; Resistance starting formula asynchronous electric engine efficiency is 60%, and power factor is 0.72, and capacitor operating type asynchronous electric engine efficiency is 65%, and power factor is 0.92.The big explanation volume of seat No. is big, Heavy Weight, many with iron with copper, the low explanation of efficient electricity wasting, and many consumed powers are wanted in the low explanation of power factor on transmission line.In emphasizing the environmental protection society of electricity saving and energy saving material-saving, the resistance starting formula asynchronous motor of electricity wasting waste copper-steel material material should be eliminated.But what asynchronous electric strength machine to replace resistance starting formula asynchronous motor with? the capacitor operating type asynchronous motor is obviously not all right, and reason is that detent torque is too little.The patent No. is that the utility model patent of ZL200920227149.8 is also not all right, and reason is the level that detent torque does not also reach resistance starting formula asynchronous motor.Capacitor start operating type asynchronous motor could be competent at, but needs starting switch.
The utility model content
Technical assignment of the present utility model provides a kind of starting switch that do not need just can have the detent torque multiple that equates with resistance starting formula asynchronous motor and a kind of double-capacitance monopole asynchronous motor that two main windings are arranged that the starting current multiple is little, power factor is high.
Technical assignment of the present utility model is realized in the following manner, the main winding and the auxiliary winding that comprise motor stator, two main windings and an auxiliary winding are arranged on the motor stator, first main winding directly connects 220 volts of AC power, and second main winding and auxiliary winding connect 220 volts of AC power behind the series capacitor respectively again.
Described two main windings respectively account for 1/4 to 1/3 of the total groove number of stator, and auxiliary winding accounts for 1/3 to 1/2 of the total groove number of stator.
The axis of the common total main winding formed of described two main windings becomes 90 degree electrical degrees with the axis of auxiliary winding in the space.
Described two main windings axis separately lay respectively at total main winding axis both sides and equate with the acute angle angle of total main winding axis in the space, with the angular range of total main winding axis be that 15 degree are to 30 degree electrical degrees.
The rated voltage of the common total main winding formed of described two main windings is 220 volts, and rated current is 1 to 1.4 times with power capacity operating type motor main winding rated current.
Described and the second main winding series capacitors can be used non-polarized electrolytic capacitor, and specified working volts alternating current is greater than 200 volts.
Described and auxiliary winding series capacitors is a non-polarized capacitor.
Described and the capacitance second main winding series capacitors are 5 to 15 times with the capacitance of auxiliary winding series capacitors.
Of the present utility model a kind ofly have the double-capacitance monopole asynchronous motor of two main windings to have the following advantages:
1, it does not need starting switch just can have the detent torque multiple that equates with resistance starting formula asynchronous motor, and the starting current multiple is little, power factor is high;
If 2 is equal substantially with resistance starting formula asynchronous motor use copper-steel material material amount, then the utility model running efficiency height;
If 3 and resistance starting formula asynchronous motor have equal running efficiency, then the utility model can be used the copper-steel material material less, makes the motor volume little, in light weight;
4, because above-mentioned advantage is arranged, the price change trend of adding capacitor is more and more cheap, so the utility model is the desirable renewal product that replaces resistance starting formula asynchronous motor;
5, the utility model is easy to make the small power motor of tens watts even several watts, thereby has filled up the blank that the small-power asynchronous motor does not have big detent torque multiple;
6, carrying out in a deep going way along with electricity saving and energy saving work, the trend that aluminium changes copper will appear in the sliver of monopole asynchronous motor cage rotor, after rotor bar aluminium changed copper, detent torque multiple of the present utility model and running efficiency will significantly improve, even might replace capacitor start formula asynchronous motor.
7, reasonable in design, simple in structure, cost is low, the compressor etc. that can be widely used in junior machine, air blast, medicine equipment and refrigerator needs the place of medium detent torque multiple, thereby, have good value for applications.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing 1 is a kind of principle schematic that the double-capacitance monopole asynchronous motor of two main windings is arranged.
Among the figure: 1, first main winding; 2, second main winding; 3, auxiliary winding; 4, with the second main winding series capacitors; 5, with the auxiliary winding series capacitors.
Embodiment
Explain below with reference to Figure of description and specific embodiment a kind of double-capacitance monopole asynchronous motor that two main windings are arranged of the present utility model being done.
Embodiment:
A kind of double-capacitance monopole asynchronous motor that two main windings are arranged of the present utility model, its structure comprises the main winding and the auxiliary winding of motor stator, two main windings and an auxiliary winding are arranged, i.e. first main winding 1 and second main winding 2 and auxiliary winding 3 on the motor stator; First main winding 1 directly connects 220 volts of AC power, and second main winding 2 and auxiliary winding 3 connect 220 volts of AC power behind the series capacitor 4,5 respectively again.
Two main winding 1,2 shared respectively number of stator slots increase, and can make the detent torque multiple become big, but because the corresponding auxiliary winding 3 shared number of stator slots that reduced, so can reduce running efficiency.Accepted value is: two main windings, and promptly first main winding 1 and second main winding 2 respectively account for 1/4 of the total groove number of stator, and auxiliary winding 3 accounts for 1/2 of the total groove number of stator.
The axis of two main winding 1,2 common total main windings of forming becomes 90 degree electrical degrees with the axis of auxiliary winding 3 in the space.
Two main windings 1,2 axis separately lay respectively at total main winding axis both sides and equate with the acute angle angle of total main winding axis in the space, with the angular range of total main winding axis be that 15 degree are to 30 degree electrical degrees.The axis of the axis of first main winding 1 and second main winding 2 increases at the acute angle that space intersection becomes, and can make the detent torque multiple become big, but can reduce running efficiency, and its angle accepted value with total main winding axis is 22.5 degree electrical degrees.
The rated voltage of two main winding 1,2 common total main windings of forming is 220 volts, and rated current is 1 to 1.4 times with power capacity operating type motor main winding rated current.
Can use non-polarized electrolytic capacitor with the second main winding series capacitors, specified working volts alternating current is 250 volts.
With auxiliary winding series capacitors 5 be non-polarized capacitor, the accepted value of its specified working volts alternating current is 400 volts, the accepted value of its capacitance equals the capacitance with the used capacitor of power capacity operating type asynchronous motor.
With the capacitance of the second main winding series capacitors 4 be with the capacitance of auxiliary winding series capacitors 5 10 times.
Why the utility model can improve the detent torque multiple, is because only just can produce elliptic rotating field by the electric current in first main winding 1 and second main winding 2 when starting.After this elliptic rotating field was superimposed with the magnetic field of the electric current generation in the auxiliary winding 3, circle rotary magnetic field was approached in the total magnetic field than originally, and rotating magnetic field intensity is also greater than the capacitor operating type asynchronous motor with power.When running well, because with the capacitive reactance of the second main winding series capacitors 4 impedance much smaller than second main winding 2, its influence is very little, so can being similar to, first main winding 1 and second main winding 2 regard a total main winding as, so whole motor is equivalent to the capacitor operating type asynchronous motor, natural running efficiency is just high.
Of the present utility model a kind ofly have its processing and fabricating of double-capacitance monopole asynchronous motor of two main windings very simple and convenient, shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (8)
1. double-capacitance monopole asynchronous motor that two main windings are arranged, the main winding and the auxiliary winding that comprise motor stator, it is characterized in that having on the motor stator two main windings and an auxiliary winding, first main winding directly connects 220 volts of AC power, and second main winding and auxiliary winding connect 220 volts of AC power behind the series capacitor respectively again.
2. a kind of double-capacitance monopole asynchronous motor that two main windings are arranged according to claim 1 is characterized in that two main windings respectively account for 1/4 to 1/3 of the total groove number of stator, and auxiliary winding accounts for 1/3 to 1/2 of the total groove number of stator.
3. a kind of double-capacitance monopole asynchronous motor that two main windings are arranged according to claim 1 is characterized in that the axis of the common total main winding formed of two main windings becomes 90 degree electrical degrees with the axis of auxiliary winding in the space.
4. according to claim 1 or 3 described a kind of double-capacitance monopole asynchronous motors that two main windings are arranged, it is characterized in that two main windings axis separately lay respectively at total main winding axis both sides and equate with the acute angle angle of total main winding axis in the space, with the angular range of total main winding axis be that 15 degree are to 30 degree electrical degrees.
5. a kind of double-capacitance monopole asynchronous motor that two main windings are arranged according to claim 1, the rated voltage that it is characterized in that the common total main winding formed of two main windings is 220 volts, and rated current is 1 to 1.4 times with power capacity operating type motor main winding rated current.
6. a kind of double-capacitance monopole asynchronous motor that two main windings are arranged according to claim 1 is characterized in that can using non-polarized electrolytic capacitor with the second main winding series capacitors, and specified working volts alternating current is greater than 200 volts.
7. a kind of double-capacitance monopole asynchronous motor that two main windings are arranged according to claim 1, it is characterized in that with the auxiliary winding series capacitors be non-polarized capacitor.
8. a kind of double-capacitance monopole asynchronous motor that two main windings are arranged according to claim 1, it is characterized in that with the capacitance of the second main winding series capacitors for 5 to 15 times of the capacitance of auxiliary winding series capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205399509U CN201839172U (en) | 2010-09-25 | 2010-09-25 | Dual-capacitor type single-phase asynchronous motor with two main windings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205399509U CN201839172U (en) | 2010-09-25 | 2010-09-25 | Dual-capacitor type single-phase asynchronous motor with two main windings |
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| Publication Number | Publication Date |
|---|---|
| CN201839172U true CN201839172U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205399509U Expired - Fee Related CN201839172U (en) | 2010-09-25 | 2010-09-25 | Dual-capacitor type single-phase asynchronous motor with two main windings |
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| CN (1) | CN201839172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964572A (en) * | 2010-09-25 | 2011-02-02 | 梁佑平 | Double-capacitor single-phase asynchronous motor with two main windings |
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2010
- 2010-09-25 CN CN2010205399509U patent/CN201839172U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964572A (en) * | 2010-09-25 | 2011-02-02 | 梁佑平 | Double-capacitor single-phase asynchronous motor with two main windings |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20130925 |