CN106953484A - The single-phase capacitor operation asyn. motor of variable capacitance - Google Patents
The single-phase capacitor operation asyn. motor of variable capacitance Download PDFInfo
- Publication number
- CN106953484A CN106953484A CN201710261000.0A CN201710261000A CN106953484A CN 106953484 A CN106953484 A CN 106953484A CN 201710261000 A CN201710261000 A CN 201710261000A CN 106953484 A CN106953484 A CN 106953484A
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- CN
- China
- Prior art keywords
- electric capacity
- motor
- resistance
- variable capacitance
- auxiliary winding
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
- H02K17/08—Motors with auxiliary phase obtained by externally fed auxiliary windings, e.g. capacitor motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/165—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors characterised by the squirrel-cage or other short-circuited windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Induction Machinery (AREA)
Abstract
The invention belongs to electric motors, more particularly, to a kind of single-phase capacitor operation asyn. motor of variable capacitance, including main winding, auxiliary winding, rotor, switch, resistance R1, resistance R2, electric capacity C1, electric capacity C2 and electric capacity C3, two ends connect live wire and zero line respectively after the main winding and auxiliary winding are in parallel, resistance R1 is wherein connected between main winding and live wire, electric capacity C1 is connected between main winding and zero line, and resistance R2 is connected between auxiliary winding and live wire, electric capacity C2 is connected between auxiliary winding and zero line, electric capacity C3 again and is connected to electric capacity C2 two ends after being connected with switch.Of the invention then instantaneous power when can change motor start-up so that start more fast and safely, it is to avoid the phenomenon of burn-down of electric motor, using the environment with the load change such as unloading valve, is convenient for people to safer use equipment.
Description
Technical field
The invention belongs to electric motors, more particularly, to a kind of single-phase capacitor operation asyn. motor of variable capacitance.
Background technology
The single-phase capacitor operation asyn. motor of variable capacitance is also known as single-phase asynchronous motor, refers to use single phase alternating current power supply
(AC220V) the small power single phase Induction Machines of power supply, its power designs are all smaller, generally not more than 2kW.
The schematic diagram of existing single-phase asynchronous motor such as Fig. 1, main winding 1 and auxiliary winding 2 are in parallel, and the wherein electricity in parallel of auxiliary winding 2
Hold C.
In the equipment that the single-phase capacitor operation asyn. motor control load using variable capacitance changes, upon start up
When load is more than rated load, the single-phase capacitor operation asyn. motor of variable capacitance will be unable to start, or even can burn, therefore
Need external force to be started, valve plate is stirred in such as unloading valve, this phenomenon is very dangerous.
The content of the invention
Regarding the issue above, the present invention provides a kind of simple in construction, startup more fast and safely can power transformation
The single-phase capacitor operation asyn. motor of appearance.
To reach above-mentioned purpose, present invention employs following technical proposal：The single-phase capacitor running of this variable capacitance is asynchronous
Motor, including main winding, auxiliary winding, rotor, switch, resistance R1, resistance R2, electric capacity C1, electric capacity C2 and electric capacity C3, the master
Winding and auxiliary winding are wound in stator case, and the two ends of stator case are installed with end cap, and main winding and auxiliary winding are adopted
It is fixed on the overlapping span of layering on the inwall installation position of stator case, is rotated in stator case and be provided with cage-type rotor, cage
The rotating shaft of type rotor is connected in the mounting hole opened up on end cap by bearing, two ends point after the main winding and auxiliary winding are in parallel
Not Lian Jie live wire and zero line, resistance R1 is wherein connected between main winding and live wire, electric capacity is connected between main winding and zero line
C1, and resistance R2 is connected between auxiliary winding and live wire, electric capacity C2, electric capacity C3 and switch series are connected between auxiliary winding and zero line
Again and electric capacity C2 two ends are connected to after connection.
In the single-phase capacitor operation asyn. motor of above-mentioned variable capacitance, the switch, resistance R1, resistance R2, electricity
Hold C1, electric capacity C2 and electric capacity C3 to be arranged in the equipment installation box of stator case one end installation, wherein switch is arranged on equipment
The surface of mounting box, convenient control manually.
In the single-phase capacitor operation asyn. motor of above-mentioned variable capacitance, the electric capacity C1, electric capacity C2 and electric capacity C3
It is pressure-resistant 3500V electric capacity.
In the single-phase capacitor operation asyn. motor of above-mentioned variable capacitance, the electric capacity C1 is 0.06 μ F, electric capacity C2
For 0.03 μ F, electric capacity C3 is 0.02 μ F.
Compared with prior art, the advantage of the single-phase capacitor operation asyn. motor of this variable capacitance is：The present invention
It is simple in construction, it is easy to use, instantaneous power during motor start-up can be changed so that start more fast and safely, it is to avoid electricity
The phenomenon that machine burning is ruined, using the environment with the load change such as unloading valve, is convenient for people to safer use equipment.
Brief description of the drawings
Fig. 1 is the structural representation of existing single-phase capacitor operation asyn. motor；
Fig. 2 is the structure principle chart of the single-phase capacitor operation asyn. motor of variable capacitance；
Fig. 3 is the structural representation of the single-phase capacitor operation asyn. motor of variable capacitance；
Fig. 4 is the structural representation of main winding and auxiliary winding in stator.
In figure, main winding 1, auxiliary winding 2, cage-type rotor 3, switch 4, equipment installation box 5, stator case 6.
Embodiment
Following examples only exist in illustrative purpose, without being intended to limit the scope of the present invention.
Embodiment
As Figure 1-4, the single-phase capacitor operation asyn. motor of this variable capacitance, including main winding 1, auxiliary winding 2, turn
Son 3, switch 4, resistance R1, resistance R2, electric capacity C1, electric capacity C2 and electric capacity C3, the main winding 1 and auxiliary winding 2 are wound on fixed
In sub- housing 6, the two ends of stator case 6 are installed with end cap, and main winding 1 and auxiliary winding 2 are consolidated using the overlapping span of layering
It is scheduled on the inwall installation position of stator case 6, is rotated in stator case 6 and be provided with cage-type rotor 3, the rotating shaft of cage-type rotor 3 is led to
Bearing is crossed to be connected in the mounting hole opened up on end cap.
Two ends connect live wire and zero line respectively after main winding 1 and auxiliary winding 2 parallel connection, wherein main winding 1 and live wire it
Between be connected with resistance R1, electric capacity C1 is connected between main winding 1 and zero line, and resistance R2 is connected between auxiliary winding 2 and live wire,
It is connected with electric capacity C2 between auxiliary winding 2 and zero line, electric capacity C3 again and is connected to electric capacity C2 two ends after being connected with switch 4.
The switch 4, resistance R1, resistance R2, electric capacity C1, electric capacity C2 and electric capacity C3 are arranged at the one end of stator case 6 peace
In the equipment installation box 5 of dress, wherein switch 4 is arranged on the surface of equipment installation box 5, convenient control manually.
The electric capacity C1, electric capacity C2 and electric capacity C3 are pressure-resistant 3500V electric capacity.
The inductance of main winding 1 and auxiliary winding 2 under preferable Light Condition is L=262.1273102 Ω S (with showing
Have the main winding 1 in the single-phase capacitor operation asyn. motor of variable capacitance identical with the inductance of auxiliary winding 2), induction reactance XL=2 π fL
=82350 Ω (f is ac frequency, and L is inductance)；Therefore the induction reactance X of the output watt-hour of rated power 2.1046L=62260 Ω are (real
Border power is P=2.5046).
The electric capacity C1 is 0.06 μ F, and electric capacity C2 is 0.03 μ F, electric capacity C3=0.02 μ F, on startup by compressing switch 4, is made
Obtain electric capacity C3 to be switched on, at this moment electric capacity C2 is in parallel with electric capacity C3, total capacitance C=0.05 μ F, at this moment auxiliary winding 2 total capacitive reactance XC=
1/ Ω of (100 π * 0.05*10-6)=63662, capacitive reactance reduces, and general power gets a promotion.
When being filled with cement on the valve body of unloading valve, because the starting of the single-phase capacitor operation asyn. motor of variable capacitance turns
Square is small, can lead to not start, at this time by the 0.4-1min that compresses switch so that rated power P=of the starting power from input
2.5046 watts increase to P=10.3046 watts, to realize the normal starting of valve body.
Although more having used main winding, auxiliary winding, rotor, switch, resistance R1, resistance R2, electric capacity C1, electric capacity herein
The term such as C2 and electric capacity C3, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more convenient
Ground describes and explains the essence of the present invention；Being construed as any additional limitation is disagreed with spirit of the present invention
's.
Claims (5)
1. a kind of single-phase capacitor operation asyn. motor of variable capacitance, including main winding (1), pair are around (2), rotor (3), switch
(4), resistance R1, resistance R2, electric capacity C1, electric capacity C2 and electric capacity C3, the main winding (1) and auxiliary winding (2) are wound on stator
In housing (6), the two ends of stator case (6), which are installed with to rotate in end cap, stator case (6), is provided with cage-type rotor (3),
The rotating shaft of cage-type rotor (3) is connected in the mounting hole opened up on end cap by bearing, the main winding (1) and auxiliary winding (2)
Two ends connect live wire and zero line respectively after parallel connection, it is characterised in that：Main winding (1) is connected with resistance R1 between live wire, it is main around
Group (1) is connected with electric capacity C1 between zero line, and auxiliary winding (2) is connected with resistance R2, auxiliary winding (2) and zero line between live wire
Between be connected with electric capacity C2, electric capacity C3 again and is connected to electric capacity C2 two ends after being connected with switch (4).
2. the single-phase capacitor operation asyn. motor of variable capacitance according to claim 1, it is characterised in that：Main winding
(1) it is fixed on auxiliary winding (2) using the overlapping span of layering on the inwall installation position of stator case (6).
3. the single-phase capacitor operation asyn. motor of variable capacitance according to claim 1, it is characterised in that：The switch
(4), resistance R1, resistance R2, electric capacity C1, electric capacity C2 and electric capacity C3 are arranged at the equipment installation of stator case (6) one end installation
In box (5), wherein switch (4) is arranged on the surface of equipment installation box (5), convenient control manually.
4. the single-phase capacitor operation asyn. motor of the variable capacitance according to claim 1 or 3, it is characterised in that：It is described
Electric capacity C1, electric capacity C2 and electric capacity C3 are pressure-resistant 3500V electric capacity.
5. the single-phase capacitor operation asyn. motor of variable capacitance according to claim 4, it is characterised in that：The electric capacity
C1 is 0.06 μ F, and electric capacity C2 is 0.03 μ F, and electric capacity C3 is 0.02 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261000.0A CN106953484A (en) | 2017-04-20 | 2017-04-20 | The single-phase capacitor operation asyn. motor of variable capacitance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261000.0A CN106953484A (en) | 2017-04-20 | 2017-04-20 | The single-phase capacitor operation asyn. motor of variable capacitance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106953484A true CN106953484A (en) | 2017-07-14 |
Family
ID=59476463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710261000.0A Withdrawn CN106953484A (en) | 2017-04-20 | 2017-04-20 | The single-phase capacitor operation asyn. motor of variable capacitance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106953484A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757499A (en) * | 2018-06-25 | 2018-11-06 | 赛莱默水处理系统（沈阳）有限公司 | The single-phase submerged sewage pump of integrated form |
| CN109831125A (en) * | 2017-11-23 | 2019-05-31 | 浙江富莱欧机电有限公司 | A kind of double value capacitor asynchronous motor low pressure operation power-assisted start-up circuit |
| CN112787446A (en) * | 2019-11-06 | 2021-05-11 | 现代自动车株式会社 | Motor for air compressor |
-
2017
- 2017-04-20 CN CN201710261000.0A patent/CN106953484A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831125A (en) * | 2017-11-23 | 2019-05-31 | 浙江富莱欧机电有限公司 | A kind of double value capacitor asynchronous motor low pressure operation power-assisted start-up circuit |
| CN108757499A (en) * | 2018-06-25 | 2018-11-06 | 赛莱默水处理系统（沈阳）有限公司 | The single-phase submerged sewage pump of integrated form |
| CN112787446A (en) * | 2019-11-06 | 2021-05-11 | 现代自动车株式会社 | Motor for air compressor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170714 |