CN102742145B - AC monocyclic-start induction motor, for operation sheet phase induction motor equipment and there is the compressor of this motor or equipment - Google Patents
AC monocyclic-start induction motor, for operation sheet phase induction motor equipment and there is the compressor of this motor or equipment Download PDFInfo
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- CN102742145B CN102742145B CN201080059049.4A CN201080059049A CN102742145B CN 102742145 B CN102742145 B CN 102742145B CN 201080059049 A CN201080059049 A CN 201080059049A CN 102742145 B CN102742145 B CN 102742145B
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- switch
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- syndeton
- power supply
- motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
- H02P1/44—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor
- H02P1/445—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor by using additional capacitors switched at start up
Abstract
The invention provides the AC monocyclic-start induction motor with main winding and auxiliary winding.This motor comprises the switch be arranged with short circuit working capacitor.In order to provide variable running capacitor, this motor comprises the additional working capacitor in series inserted relative to another working capacitor further, and one of this this capacitor of switch short.
Description
Technical field
The present invention relates to the AC monocyclic-start induction motor comprising main winding and auxiliary winding.Especially, the present invention relates to the induction motor with the first syndeton and the second syndeton, first syndeton is used for connecting main winding between the power supply phase and ground of power supply, and the second syndeton is used between the power supply phase and ground of power supply, connect auxiliary winding.
Background technology
Monocyclic-start induction motor has for activating during operation or the relay of deexcitation working capacitor.
Single-phase motor is the electric rotating machine with advocate peace auxiliary both windings and cage rotor.The single-phase motor of the most usual type is phase-splitting, capacitor starts, capacitor operates and the running of capacitor start-up capacitance device.Auxiliary both windings of advocating peace power supply allows monophase machine to be driven by as two-phase machine.
Usually, this motor is connected to power supply via relay, and this relay activates or this working capacitor of deexcitation in operation.
In known motor, above-mentioned second syndeton is included in the first and second paths extended in parallel between power supply phase and auxiliary winding.First of these two paths comprises working capacitor, and the second path can comprise variable resistor, such as, and PTC.Relay function forbids conducting in the second path, unless the electric current in main winding exceedes certain restriction, and the therefore only conducting when motor sucks higher electric current time of the second path.
Summary of the invention
An object of embodiments of the invention is to provide a kind of motor of improvement and the equipment for operating motor.
Therefore, in in first, the invention provides a kind of AC monocyclic-start induction motor, comprise main winding, auxiliary winding, first syndeton and the second syndeton, first syndeton is used for connecting main winding between the power supply phase and ground of power supply, second syndeton is used between the power supply phase and ground of power supply, connect auxiliary winding, second syndeton is included in the first and second paths extended in parallel between power supply phase and auxiliary winding, wherein the first path comprises working capacitor, and the second path comprises resistance, this motor comprise further be arranged with closed configuration allow conducting in the second path, with the switch forbidding conducting in the second path in open configuration, depend on the electric current in the first syndeton, this switch is moveable between opening and closing configuration, it is characterized in that: the second syndeton is included in the additional working capacitor of connecting with working capacitor in the second path further, and be connected to the bridge road in the path between the first and second tie points, first tie point is between switch and resistance, and the second tie point is between working capacitor and additional working capacitor.
Due to additional working capacitor and corresponding bridge road, when switch is in open configuration time, this auxiliary winding is powered via one group of two working capacitor be connected in series.
Theoretical according to the capacitor set up preferably, two capacitors be connected in series provide the electric capacity of at least one electric capacity lower than this capacitor.If such as each working capacitor has the capacitance of 4 μ F, then, the comparable capacitance of two capacitors sequentially connected becomes 2 μ F.Therefore, this motor can depend on that the electric current sucked by main winding changes its running capacitor, this current activation and deexcitation relay.
Result is the efficiency that load is relevant.High capacity causes high capacitance value, and therefore adapts to high efficiency, and low load causes low capacitor value, and it is then best for low load situation, and it provides high efficiency equally.
When load is high time, the moment of torsion of this motor side by side improves.When load is high time, this is useful.This function is patented, but be connected in parallel in the version of capacitor having, it needs different relay design.
" the first syndeton " refers to the conductor structure for connecting main winding between the power supply phase and ground of power supply herein.
" the second syndeton " refers to the conductor structure for connecting auxiliary winding between the power supply phase and ground of power supply herein.This structure can share conductor with the first syndeton, and some both unit conducted electricity electronically forms a part for the first and second syndetons whereby.
" the first and second paths " refers to the path of the conduction of a part for formation second syndeton herein.Especially, the second path also can form a part for the first syndeton.The first and second paths mentioned extend in parallel mutually and between auxiliary winding in power supply.That is, this auxiliary winding can depend on the configuration of switch one or two power supplies via the first and second paths.This motor can comprise other path in addition.
" working capacitor " refers to the capacitor of any kind of this motor that is applicable to operate herein.
" start-up capacitance device " refers to the capacitor of any kind being applicable to start this motor herein.
" resistance " refers to the parts providing Ohmic resistance herein.Especially can be variable resistor according to resistance of the present invention.
" variable resistor " refers to herein and such as depends on and flow through the electric current of resistance, the temperature of resistance and the resistance that can change, or based on duration of time cycle and the resistance changed.PTC is a variable-resistance example, because this resistance is increased by raised temperature, but, also can select other resistance.
" switch " refers to the structure of any kind providing at least two to configure herein, wherein in one of this configuration, allows conducting in the second path, and forbids in another configuration.This switch can be traditional switch, or it can be formed as relay, such as, based on a part for the relay of transistor.Therefore, " this switch is mobilizable " mentioned can comprise the switch element movement larger relative to contact point, or it can comprise small switching, such as, in CPU etc.
" bridge road " refers to the connection of the conducting between the first and second paths herein.If this resistance is high in the second path, when switch cuts out time, this motor can be powered via working capacitor, and when switch open time, powers via the additional working capacitor of connecting with working capacitor.
According to the present invention, first syndeton can form coil, this coil can produce magnetic field based on the conducting of the electric current in the first syndeton, this coil is by relative to switching arrangement, this configuration can be changed by utilizing magnetic field, making the configuration of switch depend on the electric current in the first syndeton.
By comprising coil in the second path, realize further advantages, because if switch to move to from open circuit in moment of additional working capacitor charging close configuration, additional working capacitor thus can be discharged via this coil.In this, this switch preferably can be located in the second path between coil and bridge road, so that this switch never affects other except the electric current between coil and auxiliary winding.
Discharge to additional working capacitor for control mode, this motor may further include the additional resistance be located in second path of power supply mutually and between switch.In this case, above-mentioned coil does not need to be included in inevitably in the second path because the energy discharged from additional capacitor absorb by the resistance that adds.As the alternative of coil or additional resistance, when switch moves to closed configuration time, the second path can comprise the suitable power consumer for any kind to additional capacitor discharge, such as coil or traditional resistor.
This motor may further include and arranges to allow in closed configuration conducting in the second path, with the additional switch forbidden in open-loop configuration conducting in the second path, depend on the electric current in the first syndeton, additional switch is mobilizable between open circuit and closed configuration, and additional switch is located in the second path between bridge road and resistance.In this case, this additional switch can prevent electric current by this resistance in its open-loop configuration, allows in the Part I in the second path via the conduction of bridge road from first path that powers simultaneously.
First syndeton can form additional coil, this additional coil can produce magnetic field based on the conduction of electric current in the first syndeton, additional coil by relative to additional switching arrangement, makes the configuration of the switch added can change by utilizing the magnetic field produced by the coil added.
Also for ease of the power consumption guaranteed for additional capacitor discharge, the second path can also comprise additional coil.
Except two working capacitors, this motor can also comprise the start-up capacitance device in the second path be arranged between of switch and auxiliary winding.This start-up capacitance device provides the moment of torsion of enhancing between the starting period.Between the starting period, that is, before PTC temperature has raised, the conducting via PTC and start-up capacitance device improves starting torque, and when its temperature raises time, PTC cuts off electric current, so that the starting torque improved stops.
In second aspect, the invention provides a kind of equipment for operating AC monocyclic-start induction motor, AC monocyclic-start induction motor has main winding and auxiliary winding.Comprise according to the equipment of second aspect: for connecting the first syndeton of main winding between the power supply phase and ground of power supply, and for connecting the second syndeton of auxiliary winding between the power supply phase and ground of power supply, second syndeton is included in the first and second paths extended in parallel between power supply phase and auxiliary winding, wherein the first path comprises working capacitor, and the second path comprises resistance, this equipment comprises arrangement further and allows the conducting in the second path when closed configuration, with the switch forbidding the conducting in the second path when open-loop configuration, depend on the electric current in the first syndeton, this switch is mobilizable between open circuit and closed configuration, it is characterized in that: the second syndeton is included in the additional working capacitor of connecting with working capacitor in the second path further, and between the first and second tie points, connect the bridge road (12) in this path, first tie point is between switch and resistance, and the second tie point is between working capacitor and additional working capacitor.
This equipment may further include any feature described relative to first aspect of the present invention.
In refrigeration systems, typically such as condition metric is depended in the load of compressor reducer, or depends on that arrangement in refrigeration systems, or the project amount change removed from refrigerating system.Therefore this load changes in unpredictalbe mode.In in the 3rd, the invention provides the compressor reducer comprising motor as above or equipment.This compressor reducer can use in particular in refrigeration systems.
Because this equipment and motor depend on that the load of motor automatically changes the ability of electric capacity, the refrigerating system comprising such equipment or motor becomes and can automatically be adapted to current load situation.
Accompanying drawing explanation
From following detailed description and specific example, the further scope of application of the present invention will become apparent.But, should be understood that, although expression the preferred embodiments of the present invention, detailed description and specific example are only illustrated by example and provide, because from this describes in detail, for those skilled in the art, various within the spirit and scope of the present invention changes and improvements will become apparent.
Fig. 1 illustrates the motor schematic diagram of prior art motor;
Fig. 2 illustrates the motor schematic diagram according to motor of the present invention; With
Fig. 3-8 illustrates the various alternative embodiment according to motor of the present invention.
Embodiment
As illustrated in fig. 1, traditional motor comprises main winding 1 and auxiliary winding 2.Two windings are connected to the zero terminal 3 of AC power supplies via wire 4.
Main winding 1 is connected to the power supply phase 5 of power supply via coil 6.
This auxiliary winding 2 is connected to power supply phase 5 via the first and second parallel paths.First path comprises the PTC8 connected with switch 9.This switch 9 is operated by coil 6, with box lunch enclose online in 6 conduct sufficiently large electric current time its close.Second path comprises the working capacitor 10 be connected between power supply phase 5 and auxiliary winding 2.
Under the startup situation that main winding 1 sucks high electric current, the magnetic field produced in coil 6 becomes sufficiently strong, with closing switch 9, and depends on its temperature, and PTC8 provides energy therefore can to auxiliary winding 2, thus it supports main winding 1 with start-up mode.
Fig. 2 schematically illustrates according to motor of the present invention.Hereinafter, " coil connector for dynamoelectric " 7 connects suitable position by the position related between main winding 1 and coil 6 usually, that is, coil 6 is between power supply phase 5 and coil connector for dynamoelectric 7.
This auxiliary winding 2 is connected to power supply phase 5 via the first and second parallel paths.First path is enclosed online between connector 7 and auxiliary winding 2 and is extended, and it comprises the PTC8 connected with switch 9.
First working capacitor 11 added is inserted in the second path, and the working capacitor that this auxiliary winding 2 is become via two series connection is connected to power supply phase 5.
Extend between position in position in first path of bridge road 12 between switch 9 and PTC8 and the second path between working capacitor 10 and the first additional working capacitor 11.This bridge road 12 thus be interconnected the first and second paths.
In operation, motor is switched on, and main winding sucks higher electric current.High electric current closing switch 9, and the first working capacitor 11 added is shorted via bridge road 12, the switch 9 of closing and coil 6.In this state, PTC is cold, and therefore resistance be wherein lower, such as, between 5 and 25 ohm, and this auxiliary winding therefore via PTC by power drives.
Have in the example of 4 μ F electric capacity at working capacitor 10 and first additional both working capacitors 11, this auxiliary winding thus power via PTC8 with via the single 4 μ F capacitors in parallel with PTC8.
When motor is activated, and electric current be lowered to coil 6 no longer can maintained switch 9 when the level of closed configuration, the open circuit of this switch activates the first additional working capacitor 11, and this auxiliary winding 2 is powered via two 4 μ F capacitors be connected in series now, that is, electric capacity is caused to become 2 μ F according to the capacitor theory set up better.
PTC8 is also connected in parallel with one of capacitor via bridge road 12.Under normal operating mode situation, PTC will be still hotter, therefore provides high resistance, such as, several kilohms, and therefore auxiliary winding 2 only powers via two capacitors be connected in series 10,11 substantially.
Fig. 3 illustrates can embodiment compared with illustrational in fig. 2, but, comprise additional electric resistance structure 13, such as, there is provided electric capacity, resistance or the resistance of inductance or its combination, the working capacitor 11 added is discharged with control mode by utilizing this electric resistance structure.
Illustrational PTC8 can be preferably that E-PTC is so that energy-conservation at operation mode in figs. 2 and 3.In traditional PTC, the heat of PTC causes unwanted energy loss, and in this case, the use of E-PTC will prevent thermal losses, because it disconnects until failure of current.
Fig. 4 illustrates embodiment that have the additional switch 14 that operated by the coil 15 added, that correspond to illustrational embodiment in fig. 2.This switch 14 is inserted in the first path, makes when motor is no longer among start-up mode time, that is, when the no longer enough maintained switchs 14 of the electric current via main winding are when closed configuration, PTC8 is disconnected.Switch 14, in other words, only relevant with start-up mode, and disconnect after entering operation mode.In this case, this startup accurately corresponds to illustrational embodiment in fig. 2, but, when start-up mode terminates, and time motor is operated with operation mode by specified speed, the capacitor that this auxiliary winding 2 is only connected in series via two is powered.Equally, if each electric capacity with 4 μ F of capacitor, become 2 μ F with the electric capacity that operation mode produces.Switch 9 and corresponding coil 6 are intended to operate to and fro between two states, and this electric motor operated is in operation mode simultaneously.When operating in operation mode, whenever motor heavy load, and when therefore main winding 1 sucks high electric current, but not high as start-up mode, switch 9 is closed, and the working capacitor 11 added is bypassed.
In the fig. 4 embodiment, this motor comprises the thermal protector switch 16 be inserted in the circuit 4 of zero terminal 3 further.
Fig. 5 illustrates the embodiment corresponding to Fig. 3, but, comprise the start-up capacitance device 17 inserted of connecting with PTC8.This start-up capacitance device improves starting torque.
Fig. 6 illustrates the embodiment corresponding to Fig. 3, but in this case, the additional switch 14 at operation mode disconnection PTC8 used in the embodiments of figure 3 and additional coil 15 are replaced by the dual-switch structure 18,19 operated by single coil 6.
In start-up mode, high electric current closes two switches, and the working capacitor 11 that bypass is additional, and activate PTC8, and it is among operation mode, deexcitation PTC8, and activate additional working capacitor 11.In addition, the second path extends now between coil connector for dynamoelectric 7 and auxiliary winding 2, that is, working capacitor 10 and additional working capacitor 11 are connected in series between coil connector for dynamoelectric 7 and auxiliary winding 2 now.When switch 19 cuts out time, additional working capacitor 11 discharges the damage preventing from causing due to too fast electric discharge via resistance 20 with control mode.
Fig. 7 illustrates the embodiment corresponding to Fig. 6, but the second path extends between 5 and auxiliary winding 2 mutually in power supply now herein, that is, working capacitor 10 and additional working capacitor 11 are connected in series in power supply mutually between 5 and auxiliary winding 2 now.When switch 19 cuts out time, additional working capacitor 11 discharges via coil 6 with control mode, and thus prevents the damage that the contact point of switch 19 causes due to too fast electric discharge.
Fig. 8 illustrates a kind of motor, and wherein working capacitor 10 is arranged in parallel with the path being included in coil 6, switch 9 and second working capacitor 25 added of powering mutually between 5 and auxiliary winding 2.In this case, when switch is pent time, that is, when main winding 1 suck enough energy go closing switch 9 time, the electric capacity that the parallel coupled of working capacitor 10 and the second additional working capacitor produces corresponds to the summation of two capacitors 10,25.
Claims (8)
1. an AC monocyclic-start induction motor, comprise main winding (1), auxiliary winding (2), first syndeton and the second syndeton, first syndeton is used for connecting main winding (1) between the power supply phase (5) and ground of power supply, second syndeton is used for connecting auxiliary winding (2) between the power supply phase (5) and ground (3) of power supply, second syndeton is included in the first and second paths extended in parallel between power supply phase and auxiliary winding (2), wherein the first path comprises working capacitor (10), and the second path comprises resistance (8), motor comprises switch (9) further, it is arranged to allow conducting in the second path with the closed configuration at switch (9), in the second path conducting is forbidden with the open configuration at switch (9), depend on the electric current in the first syndeton, switch (9) is moveable between opening and closing configuration, it is characterized in that: the second syndeton is included in the additional working capacitor (11) of connecting with working capacitor (10) in the second path further, and be connected to the bridge road (12) in the path between the first and second tie points, first tie point is between switch (9) and resistance (8), and the second tie point is between working capacitor (10) and additional working capacitor (11),
Wherein the second path comprises coil (6),
Main winding (1) is connected to the power supply phase (5) of power supply via coil (6),
This motor comprises additional switch (14) further, it is arranged to allow conducting in the second path with the closed configuration at switch, and forbid conducting in the second path in the open configuration of switch, depend on the electric current in the first syndeton, additional switch is moveable between opening and closing configuration, with additional switch (14) is located in the second path between bridge road (12) and resistance (8)
This motor comprises the start-up capacitance device (17) in the second path between and auxiliary winding (2) being arranged in switch (9,14) further.
2. motor according to claim 1, wherein the first syndeton forms coil (6), it can produce magnetic field based on the conduction of the electric current in the first syndeton, and coil is arranged by relative to switch (9), and the configuration of switch can be changed by utilizing magnetic field.
3. motor according to claim 1, its breaker in middle (9) is located in the second path between coil (6) He Qiaolu (12).
4. according to any one motor of previous claim, comprise additional resistance (13) further, it is located in the second path between power supply phase (5) and switch (9).
5. according to claim 1-3 any one described in motor, wherein the first syndeton forms additional coil (15), it can produce magnetic field based on the conduction of the electric current in the first syndeton, additional coil (15) is arranged by relative to additional switch (14), and the configuration of the switch added can be changed by utilizing the magnetic field produced by the coil added (15).
6. motor according to claim 5, wherein the second path comprises additional coil (15).
7. one kind has the equipment of the AC monocyclic-start induction motor of main winding (1) and auxiliary winding (2) for operation, this equipment comprises the first syndeton for connecting main winding between the power supply phase (5) and ground (3) of power supply, and for connecting the second syndeton of auxiliary winding (2) between the power supply phase (5) and ground (3) of power supply, second syndeton is included in the first and second paths extended in parallel between power supply phase (5) and auxiliary winding (2), wherein the first path comprises working capacitor (10), and the second path comprises resistance (8), this equipment comprise further be arranged with closed configuration allow conducting in the second path, with the switch (9) forbidding conducting in the second path in open configuration, depend on the electric current in the first syndeton, switch (9) is moveable between opening and closing configuration, it is characterized in that: the second syndeton is included in the additional working capacitor (11) of connecting with working capacitor (10) in the second path further, and be connected to the bridge road (12) in the path between the first and second tie points, first tie point is between switch (9) and resistance (8), and the second tie point is between working capacitor (10) and additional working capacitor (11),
Wherein the second path comprises coil (6),
Main winding (1) is connected to the power supply phase (5) of power supply via coil (6),
This motor comprises additional switch (14) further, it is arranged to allow conducting in the second path with the closed configuration at switch, and forbid conducting in the second path in the open configuration of switch, depend on the electric current in the first syndeton, additional switch is moveable between opening and closing configuration, with additional switch (14) is located in the second path between bridge road (12) and resistance (8)
This motor comprises the start-up capacitance device (17) in the second path between and auxiliary winding (2) being arranged in switch (9,14) further.
8. one kind comprises the compressor of motor according to claim 1-6 or equipment according to claim 7.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA200901147 | 2009-10-22 | ||
| DKPA200901147 | 2009-10-22 | ||
| PCT/DK2010/000139 WO2011047681A2 (en) | 2009-10-22 | 2010-10-21 | An ac single phase induction motor, a device for operating a single phase induction motor, and a compressor with such a motor or device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102742145A CN102742145A (en) | 2012-10-17 |
| CN102742145B true CN102742145B (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080059049.4A Active CN102742145B (en) | 2009-10-22 | 2010-10-21 | AC monocyclic-start induction motor, for operation sheet phase induction motor equipment and there is the compressor of this motor or equipment |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102742145B (en) |
| DE (1) | DE112010004128B4 (en) |
| WO (1) | WO2011047681A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377375B (en) * | 2010-07-12 | 2014-03-12 | 思科普有限责任公司 | Starting device used in motor |
| BR102013003298A2 (en) * | 2012-04-27 | 2015-05-19 | Whirlpool Sa | Single-phase starting and running device and single-phase starting and running system |
| CN105337533A (en) * | 2015-12-09 | 2016-02-17 | 华意压缩机股份有限公司 | Method for starting freezer compressor without power consumption |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB421656A (en) * | 1933-07-05 | 1934-12-28 | English Electric Co Ltd | Improvements in starting means for single phase capacitor type induction motors |
| GB469346A (en) * | 1936-04-17 | 1937-07-23 | English Electric Co Ltd | Improvements in capacitor type single-phase induction motors |
| DE3908882A1 (en) * | 1989-03-17 | 1990-09-20 | Akbar S | Capacitor control of single-phase induction motors |
| CN1132961A (en) * | 1994-08-31 | 1996-10-09 | 三菱电机株式会社 | Single-phase induction motor and refrigerator using single-phase induction motor |
| US6049188A (en) * | 1996-11-07 | 2000-04-11 | Smith; Otto J. M. | Single-phase motor starters |
| DE10230728A1 (en) * | 2001-07-10 | 2003-04-30 | Cubigel S A | Control circuit for single-phase induction motor e.g. for compressor, has current-controlled start-up relay with actuation winding in series with main winding; normally open contact connects/disconnects start-up capacitor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55139081A (en) * | 1979-04-13 | 1980-10-30 | Hitachi Ltd | Single-phase induction capacitor motor |
| JPH06319282A (en) * | 1993-04-30 | 1994-11-15 | Sanyo Electric Co Ltd | Starting circuit for single-shape induction motor |
| DE602004029852D1 (en) * | 2003-07-09 | 2010-12-16 | Panasonic Corp | SYNCHRONOUS INDUCTION MOTOR AND A HERMETIC COMPRESSOR WITH SUCH A MOTOR |
| DE102004017624A1 (en) * | 2004-01-30 | 2005-08-18 | Danfoss Compressors Gmbh | Starter for line start electric motor, has run capacitor connecting start capacitor and positive temperature coefficient-thermistor in parallel, where start capacitor and thermistor are connected in series with switch mechanism |
-
2010
- 2010-10-21 CN CN201080059049.4A patent/CN102742145B/en active Active
- 2010-10-21 DE DE112010004128.8T patent/DE112010004128B4/en active Active
- 2010-10-21 WO PCT/DK2010/000139 patent/WO2011047681A2/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB421656A (en) * | 1933-07-05 | 1934-12-28 | English Electric Co Ltd | Improvements in starting means for single phase capacitor type induction motors |
| GB469346A (en) * | 1936-04-17 | 1937-07-23 | English Electric Co Ltd | Improvements in capacitor type single-phase induction motors |
| DE3908882A1 (en) * | 1989-03-17 | 1990-09-20 | Akbar S | Capacitor control of single-phase induction motors |
| CN1132961A (en) * | 1994-08-31 | 1996-10-09 | 三菱电机株式会社 | Single-phase induction motor and refrigerator using single-phase induction motor |
| US6049188A (en) * | 1996-11-07 | 2000-04-11 | Smith; Otto J. M. | Single-phase motor starters |
| DE10230728A1 (en) * | 2001-07-10 | 2003-04-30 | Cubigel S A | Control circuit for single-phase induction motor e.g. for compressor, has current-controlled start-up relay with actuation winding in series with main winding; normally open contact connects/disconnects start-up capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011047681A3 (en) | 2011-07-07 |
| DE112010004128T5 (en) | 2012-10-25 |
| CN102742145A (en) | 2012-10-17 |
| WO2011047681A2 (en) | 2011-04-28 |
| DE112010004128B4 (en) | 2016-08-18 |
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