CN201499067U - Two-value capacitor single phase motor with no start switch - Google Patents
Two-value capacitor single phase motor with no start switch Download PDFInfo
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- CN201499067U CN201499067U CN2009202271498U CN200920227149U CN201499067U CN 201499067 U CN201499067 U CN 201499067U CN 2009202271498 U CN2009202271498 U CN 2009202271498U CN 200920227149 U CN200920227149 U CN 200920227149U CN 201499067 U CN201499067 U CN 201499067U
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- electrolytic capacitor
- motor
- capacitance
- phase motor
- polarized
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Abstract
The utility model relates to a single phase AC asynchronous motor, particularly to a two-value capacitor single phase motor with no start switch, which is applicable to small power, and comprises a main winding and a secondary winding, wherein the main winding is connected with the mains supply after being connected with a non-polarized electrolytic capacitor in series, the secondary winding is connected with the mains supply after being connected with a non-electrolytic capacitor in series, and the non-polarized electrolytic capacitor is 10 to 30 times of the capacitance of the non-electrolytic capacitor. The utility model is simple in structure, and can increase the starting torque of the motor without reducing operating efficiency, therefore the starting of the motor becomes more convenient and safer.
Description
Technical field:
The utility model relates to a kind of single phase alternating current (A.C.) asynchronous motor, especially a kind of two-capacitance capacitive formula single-phase motor that is applicable to low power no starting switch.
Background technology:
In the existing single phase alternating current (A.C.) asynchronous motor, two-capacitance capacitive formula single-phase motor performance is best.Two-capacitance capacitive formula single-phase motor is efficient height, power factor height not only, and detent torque is big.But it also has a significant disadvantages, and that needs exactly with starting switch (generally using centrifugal switch), thereby is unsuitable for the single-phase motor of small-power.The capacitor operating type single-phase motor is without starting switch, thereby is extensive use of in small power motor.But its detent torque is too little, if the long-time startup of motor is not got up, is easy to burn motor.Though can adopt means such as increasing rotor resistance, increase running electric capacity to improve the motor start-up torque, must be cost to reduce running efficiency like this.
The utility model content:
The utility model provides a kind of two-capacitance capacitive formula single-phase motor that does not have starting switch, it is simple in structure, can be under the prerequisite that does not reduce running efficiency the increasing motor detent torque, make motor start-up more convenient, safer, solved problems of the prior art.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be: it comprises the main winding and the auxiliary winding of motor, and main winding is connected with mains supply with non-polarized electrolytic capacitor series connection back; Auxiliary winding is connected with mains supply with non-electrolytic capacitor series connection back; The capacitance of described non-polarized electrolytic capacitor is 10～30 times of capacitance of non-electrolytic capacitor.
The specified working volts alternating current of described non-polarized electrolytic capacitor and non-electrolytic capacitor is greater than 350 volts.
The utility model adopts and be connected in series non-polarized electrolytic capacitor on main winding, the non-electrolytic capacitor of serial connection on auxiliary winding, the capacitance of non-polarized electrolytic capacitor is 10～30 times of capacitance of non-electrolytic capacitor, motor does not re-use starting switch like this, the motor start-up torque is increased, motor start-up is more convenient, safer, the efficient height, the power factor height is specially adapted to low power consuming devices such as blower fan, washing machine, mixer, water pump.
Description of drawings:
Fig. 1 is a principle connection diagram of the present utility model.
Among the figure, 1, main winding; 2, auxiliary winding; 3, non-electrolytic capacitor; 4, non-polarized electrolytic capacitor.
Embodiment:
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in FIG., the utility model comprises the main winding 1 and auxiliary winding 2 of motor, and main winding 1 is connected with mains supply with non-polarized electrolytic capacitor 4 series connection backs; Auxiliary winding 2 is connected with mains supply with non-electrolytic capacitor 3 series connection backs; The capacitance of described non-polarized electrolytic capacitor 4 is 10～30 times of capacitance of non-electrolytic capacitor 3, if the capacitance of non-polarized electrolytic capacitor 4 is too little, motor start-up is changeed apart from descending, running efficiency reduces, capacitance too greatly also can make motor start-up change apart from descending, and influences motor start-up and running.
The specified working volts alternating current of described non-polarized electrolytic capacitor 4 and non-electrolytic capacitor 3 is greater than 350 volts.If crossing to hang down, specified working volts alternating current can cause capacitor breakdown, damage equipment.
During work, energized, because of main winding 1 initial start stage induction reactance less, the capacitive reactance of non-polarized electrolytic capacitor 4 can be offset the induction reactance of part main winding 1 in the circuit, make electric current increase in the main winding circuit, make simultaneously between main winding current and the auxiliary winding electric current phase difference more near 90 °, thereby motor start-up is changeed apart from increasing, make things convenient for motor start-up.After treating the motor start-up running, because the induction reactance of main winding 1 increases, its value can ignore the capacitive reactance of non-polarized electrolytic capacitor 4 much larger than the capacitive reactance of non-polarized electrolytic capacitor 4 in circuit, and motor can enter normal operation.
The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (2)
1. two-capacitance capacitive formula single-phase motor that does not have starting switch comprises the main winding and the auxiliary winding of motor, and it is characterized in that: main winding is connected with mains supply with non-polarized electrolytic capacitor series connection back; Auxiliary winding is connected with mains supply with non-electrolytic capacitor series connection back; The capacitance of described non-polarized electrolytic capacitor is 10～30 times of capacitance of non-electrolytic capacitor.
2. a kind of two-capacitance capacitive formula single-phase motor that does not have starting switch according to claim 1, it is characterized in that: the specified working volts alternating current of described non-polarized electrolytic capacitor and non-electrolytic capacitor is greater than 350 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202271498U CN201499067U (en) | 2009-09-22 | 2009-09-22 | Two-value capacitor single phase motor with no start switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202271498U CN201499067U (en) | 2009-09-22 | 2009-09-22 | Two-value capacitor single phase motor with no start switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201499067U true CN201499067U (en) | 2010-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202271498U Expired - Fee Related CN201499067U (en) | 2009-09-22 | 2009-09-22 | Two-value capacitor single phase motor with no start switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201499067U (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 |
-
2009
- 2009-09-22 CN CN2009202271498U patent/CN201499067U/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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100602 Termination date: 20120922 |