WO2010021867A2 - Two speed induction motor with tapped auxiliary winding - Google Patents

Two speed induction motor with tapped auxiliary winding Download PDF

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Publication number
WO2010021867A2
WO2010021867A2 PCT/US2009/053348 US2009053348W WO2010021867A2 WO 2010021867 A2 WO2010021867 A2 WO 2010021867A2 US 2009053348 W US2009053348 W US 2009053348W WO 2010021867 A2 WO2010021867 A2 WO 2010021867A2
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Prior art keywords
pole
winding
motor
speed mode
switch
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Ceased
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PCT/US2009/053348
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French (fr)
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WO2010021867A3 (en
Inventor
Vincent Fargo
Dick Cao
Yang Xilai
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Emerson Electric Co
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Emerson Electric Co
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Priority to MX2011001863A priority Critical patent/MX2011001863A/en
Priority to CN2009801321007A priority patent/CN102124638B/en
Priority to KR1020117005891A priority patent/KR101234489B1/en
Publication of WO2010021867A2 publication Critical patent/WO2010021867A2/en
Publication of WO2010021867A3 publication Critical patent/WO2010021867A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • H02K17/04—Asynchronous induction motors for single phase current
    • H02K17/06—Asynchronous induction motors for single phase current having windings arranged for permitting pole-changing
    • 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

Definitions

  • the present invention generally relates to a two speed motor with increased low speed efficiency.
  • the invention relates to a six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding .
  • the invention comprises a six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding having a 2-pole high speed mode and 4- pole low speed mode. A portion of the auxiliary winding is connected in series with the four pole main winding.
  • Fig. 1 is a schematic winding diagram of a prior art motor.
  • Fig. 2 is a schematic winding diagram of one embodiment of a motor of the invention.
  • Fig. 3 is a winding connection diagram of the prior art motor of Fig. 1.
  • EMER 2673 . 1 EMC-07 -023
  • Fig. 4 is a winding connection diagram of the motor of Fig. 2 of the invention.
  • Fig. 5 is a diagram of a prior art switch for selectively energizing the windings of the motor of Fig. 1.
  • Fig. 6 is a diagram of a switch according to the invention for selectively energizing the windings of the motor of Fig. 2.
  • Fig. 7 is a lamination for the motor of the invention corresponding to prior art Fig. 2 of U.S. Patent No. 4,322, 665.
  • Figs. 8A and 8B illustrate the windings energized for 4-pole low speed start-up of the motors of Figs. 1 and 2, respectively.
  • Figs. 9A and 9B illustrate the windings energized for 2-pole high speed start-up of the motors of Figs. 1 and 2, respectively.
  • Figs. 1OA and 1OB illustrate the windings energized for 4-pole low speed running of the motors of Figs. 1 and 2, respectively.
  • Figs. HA and HB illustrate the windings energized for 2-pole high speed running of the motors of Figs. 1 and 2, respectively.
  • the present invention is a six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding. A portion of the auxiliary winding is connected in series with the four pole main winding to increase the overall magnet wire content for the 4-pole low speed run winding without increasing the slot fill or changing the lamination configuration.
  • Fig. 1 is a schematic winding diagram of a five lead, two speed, consequent wound, single phase induction prior EMER 2673 . 1 (EMC-07 -023 )
  • the motor of the prior art includes a main winding, a 2-pole start (auxiliary) winding and a 4-pole start (auxiliary) winding.
  • a 4-pole start winding AX2 is energized via a switch (see Fig. 5) which connects Tl to a common line of a power supply and which connects T8 to a main line of the power supply.
  • a first portion Ml of the main winding is energized via a switch (see Fig. 5) which connects Tl to a common line of the power supply and which connects T7 to the main line of the power supply.
  • a switch see Fig. 5 which connects Tl and T7 to a common line of a power supply and which connects T3 to a main line of the power supply.
  • first and second portions Ml, M2 of the main winding are energized via a switch (see Fig. 5) which connects Tl and T7 to a common line of a power supply and which connects T2 to a main line of the power supply.
  • Fig. 2 is a schematic winding diagram of one embodiment of a motor of the invention. As shown in Fig. 2 and Table 2 below, the motor of the invention includes a main winding, a tapped 2-pole start (auxiliary) winding and a 4-pole start (auxiliary) winding. EMER 2673 . 1 (EMC-07 -023 )
  • the 4-pole start winding AX2 is energized via a switch (see Fig. 6) which connects Tl to a common line of a power supply and which connects T8 to the main line of the power supply.
  • a first portion Ml of the main winding and a first portion AXMl of the tapped 2-pole start winding are energized via a switch (see Fig. 6) which connects Tl to a common line of the power supply and which connects T3 to the main line of the power supply.
  • the first portion Ml and first and second portions AXMl, AXM2 of the tapped 2-pole start winding are energized via a switch (see Fig. 6) which connects Tl, T3 and T7 to a common line of a power supply and which connects T2 to a main line of the power supply.
  • first and second portions Ml, M2 of the main winding and the first portion AXMl of the tapped 2-pole start winding are energized via a switch (see Fig. 6) which connects Tl, 73 and T7 to a common line of a power supply and which connects T2 to a main line of the power supply.
  • the common line of the 2-pole mode includes lines Tl, T3 and T7.
  • the switch connects a common line of the power supply to a first portion (Tl/Ml) of the main winding, to the first portion (T3/AMX1) of the 2-pole auxiliary winding, and to both the first portion (T7/M1) of the main winding and the first portion (T7/AXM1) of the 2-pole auxiliary winding .
  • EMER 2673 . 1 EMC-07 -023
  • one embodiment of the invention comprises two speeds, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode.
  • the motor includes a rotor assembly 702 (see Fig. 7), a core comprising a stack of laminations 704 (see Fig. 7) forming slots and forming a central bore for receiving the rotor assembly 702, a main winding (Ml, M2) positioned within the slots of the core and an auxiliary winding.
  • the auxiliary winding includes a tapped 2-pole auxiliary winding having a first portion (AXMl) and a second portion (AXM2) and a 4-pole auxiliary winding (AX2) .
  • a switch (see Fig. 6) is adapted to be connected to a power supply. The switch connects to the windings for selectively energizing the windings. The switch is configured to energize at least a portion of the auxiliary winding (AXMl, AXM2, AX2) during startup of the high speed mode (Fig. 9B) and during start-up of low speed mode (Fig. 8B) .
  • the switch is configured to energize at least a portion of the main winding (Ml, M2 ) during running in the high-speed mode (Fig. HB) and during running in the low speed mode (Fig. 10B) .
  • the switch is configured to energize the first portion (AMXl) of the tapped 2- pole auxiliary winding during running in the low speed mode (Fig. 10B) thereby increasing the overall content of magnet wire energized during running in the low speed.
  • the switch is configured to energize the first portion (AMXl) of the 2-pole auxiliary winding during running in the high speed mode.
  • the switch is configured to energize the second portion (AMX2) of the 2-pole auxiliary winding during starting in the high speed mode.
  • the main and auxiliary windings comprise a consequent (i.e., concentric) winding having 6 leads (Tl, T2, T3, T7, T8, T9) .
  • both the 2-pole high speed running mode has an EMER 2673 . 1 (EMC-07 -023 ;
  • Fig. 3 is a winding connection diagram of the prior art motor of Fig. 1.
  • Fig. 4 is a winding connection diagram of the motor of Fig. 2 of the invention, illustrating the tapped 2-pole start winding requiring an extra 6th lead (T9) .
  • This additional connection allows a portion of the 2-pole start winding (AXl) to be connected in series with the main winding (Ml) .
  • Fig. 5 is a diagram of a prior art switch for selectively energizing the windings of the motor of Fig. 1.
  • Fig. 6 is a diagram of a switch according to the invention for selectively energizing the windings of the motor of Fig. 2.
  • the switch of Fig. 6 of the invention for connecting the winding to the power supply is substantially the same as a switch of Fig. 5 of the prior art in a corresponding motor two speed, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode with 5 leads and having a 2-pole winding without a tap.
  • Fig. 6 utilizes an extra set of contactors L 6, C6 and lead T9 to reconfigure the 2-pole high speed start winding .
  • Fig. 7 is the lamination 704 for the motor of the invention corresponding to prior art Fig. 2 of U.S. Patent No. 4,322,665.
  • the slots of a core of a stack of such laminations EMER 2673 . 1 (EMC-07 -023 )

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Control Of Ac Motors In General (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

A six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding having a 2-pole high speed mode and 4-pole low speed mode. A portion of the auxiliary winding is connected in series with the four pole main winding. The 4-pole low speed mode has an efficiency of over 80%.

Description

EMER 2673 . 1 (EMC-07 -023 )
TWO SPEED INDUCTION MOTOR WITH TAPPED AUXILIARY WINDING
FIELD OF THE INVENTION
[0001] The present invention generally relates to a two speed motor with increased low speed efficiency. In particular, the invention relates to a six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding .
BACKGROUND OF THE INVENTION
[0002] Two speed, consequent wound, single phase induction motors are known, such as illustrated in U.S. Patent Nos. 4,103,213 and 4,322,665. Generally, such motors tend to be more efficient at high speed than at low speed. We increased emphasis on energy savings, the demand for higher efficiency of such motors has increased. In particular, there is a need for increased efficiency of two speed, consequent wound, single phase induction motors when operating at the low speed.
SUMMARY OF THE INVENTION
[0003] In one form, the invention comprises a six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding having a 2-pole high speed mode and 4- pole low speed mode. A portion of the auxiliary winding is connected in series with the four pole main winding.
[0004] Other objects and features will be in part apparent and in part pointed out hereinafter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] Fig. 1 is a schematic winding diagram of a prior art motor.
[0006] Fig. 2 is a schematic winding diagram of one embodiment of a motor of the invention.
[0007] Fig. 3 is a winding connection diagram of the prior art motor of Fig. 1. EMER 2673 . 1 (EMC-07 -023 )
2
[0008] Fig. 4 is a winding connection diagram of the motor of Fig. 2 of the invention.
[0009] Fig. 5 is a diagram of a prior art switch for selectively energizing the windings of the motor of Fig. 1.
[0010] Fig. 6 is a diagram of a switch according to the invention for selectively energizing the windings of the motor of Fig. 2.
[0011] Fig. 7 is a lamination for the motor of the invention corresponding to prior art Fig. 2 of U.S. Patent No. 4,322, 665.
[0012] Figs. 8A and 8B illustrate the windings energized for 4-pole low speed start-up of the motors of Figs. 1 and 2, respectively.
[0013] Figs. 9A and 9B illustrate the windings energized for 2-pole high speed start-up of the motors of Figs. 1 and 2, respectively.
[0014] Figs. 1OA and 1OB illustrate the windings energized for 4-pole low speed running of the motors of Figs. 1 and 2, respectively.
[0015] Figs. HA and HB illustrate the windings energized for 2-pole high speed running of the motors of Figs. 1 and 2, respectively.
[0016] Corresponding reference characters indicate corresponding parts throughout the drawings.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0017] The present invention is a six lead, two speed, consequent wound, single phase induction motor with a tapped auxiliary winding. A portion of the auxiliary winding is connected in series with the four pole main winding to increase the overall magnet wire content for the 4-pole low speed run winding without increasing the slot fill or changing the lamination configuration.
[0018] Fig. 1 is a schematic winding diagram of a five lead, two speed, consequent wound, single phase induction prior EMER 2673 . 1 (EMC-07 -023 )
3 art motor without a tapped auxiliary winding. As shown in Fig. 1 and Table 1 below, the motor of the prior art includes a main winding, a 2-pole start (auxiliary) winding and a 4-pole start (auxiliary) winding.
[0019] TABLE 1 —PROIR ART MOTOR:
Figure imgf000005_0001
[0020] As shown in Fig. 8A, during 4-pole low speed starting, a 4-pole start winding AX2 is energized via a switch (see Fig. 5) which connects Tl to a common line of a power supply and which connects T8 to a main line of the power supply.
[0021] As shown in Fig. 1OA, during 4-pole low speed running, a first portion Ml of the main winding is energized via a switch (see Fig. 5) which connects Tl to a common line of the power supply and which connects T7 to the main line of the power supply.
[0022] As shown in Fig. 9A, during 2-pole high speed starting, the first portion Ml and a 2-pole start winding AXl are energized via a switch (see Fig. 5) which connects Tl and T7 to a common line of a power supply and which connects T3 to a main line of the power supply.
[0023] As shown in Fig. HA, during 2-pole high speed running, first and second portions Ml, M2 of the main winding are energized via a switch (see Fig. 5) which connects Tl and T7 to a common line of a power supply and which connects T2 to a main line of the power supply.
[0024] Fig. 2 is a schematic winding diagram of one embodiment of a motor of the invention. As shown in Fig. 2 and Table 2 below, the motor of the invention includes a main winding, a tapped 2-pole start (auxiliary) winding and a 4-pole start (auxiliary) winding. EMER 2673 . 1 (EMC-07 -023 )
4
[0025] TABLE 2 —ONE EMBODIMENT OF THE MOTOR OF THE INVENTION:
POLE RUN START COMMON
2 (HIGH SPEED) T2 (M2, M2 , AXMl ) T9 (Ml, AXMl, AXM2) T1,T3,T7
4 (LOW SPEED) T3 (Ml, AXMl) T8 (AX2) Tl
[0026] As shown in Fig. 8B, during 4-pole low speed starting, the 4-pole start winding AX2 is energized via a switch (see Fig. 6) which connects Tl to a common line of a power supply and which connects T8 to the main line of the power supply.
[0027] As shown in Fig. lOB, during 4-pole low speed running, a first portion Ml of the main winding and a first portion AXMl of the tapped 2-pole start winding are energized via a switch (see Fig. 6) which connects Tl to a common line of the power supply and which connects T3 to the main line of the power supply.
[0028] As shown in Fig. 9B, during 2-pole high speed starting, the first portion Ml and first and second portions AXMl, AXM2 of the tapped 2-pole start winding are energized via a switch (see Fig. 6) which connects Tl, T3 and T7 to a common line of a power supply and which connects T2 to a main line of the power supply.
[0029] As shown in Fig. HB, during 2-pole high speed running, first and second portions Ml, M2 of the main winding and the first portion AXMl of the tapped 2-pole start winding are energized via a switch (see Fig. 6) which connects Tl, 73 and T7 to a common line of a power supply and which connects T2 to a main line of the power supply.
[0030] As shown in Table 2, the common line of the 2-pole mode includes lines Tl, T3 and T7. The switch connects a common line of the power supply to a first portion (Tl/Ml) of the main winding, to the first portion (T3/AMX1) of the 2-pole auxiliary winding, and to both the first portion (T7/M1) of the main winding and the first portion (T7/AXM1) of the 2-pole auxiliary winding . EMER 2673 . 1 (EMC-07 -023 )
[0031] Thus, as illustrated in Figs. 2, 7, 8B, 9B, 1OB and HB, one embodiment of the invention comprises two speeds, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode. The motor includes a rotor assembly 702 (see Fig. 7), a core comprising a stack of laminations 704 (see Fig. 7) forming slots and forming a central bore for receiving the rotor assembly 702, a main winding (Ml, M2) positioned within the slots of the core and an auxiliary winding. In particular, the auxiliary winding includes a tapped 2-pole auxiliary winding having a first portion (AXMl) and a second portion (AXM2) and a 4-pole auxiliary winding (AX2) . A switch (see Fig. 6) is adapted to be connected to a power supply. The switch connects to the windings for selectively energizing the windings. The switch is configured to energize at least a portion of the auxiliary winding (AXMl, AXM2, AX2) during startup of the high speed mode (Fig. 9B) and during start-up of low speed mode (Fig. 8B) . In addition, the switch is configured to energize at least a portion of the main winding (Ml, M2 ) during running in the high-speed mode (Fig. HB) and during running in the low speed mode (Fig. 10B) . In addition, the switch is configured to energize the first portion (AMXl) of the tapped 2- pole auxiliary winding during running in the low speed mode (Fig. 10B) thereby increasing the overall content of magnet wire energized during running in the low speed.
[0032] As shown in Figs. 2 and HB, the switch is configured to energize the first portion (AMXl) of the 2-pole auxiliary winding during running in the high speed mode.
[0033] As shown in Figs. 2 and 9B, the switch is configured to energize the second portion (AMX2) of the 2-pole auxiliary winding during starting in the high speed mode.
[0034] As shown in Figs. 2, 8B, 9B, 1OB and HB, the main and auxiliary windings comprise a consequent (i.e., concentric) winding having 6 leads (Tl, T2, T3, T7, T8, T9) .
[0035] In accordance with one aspect of one embodiment of the invention, both the 2-pole high speed running mode has an EMER 2673 . 1 (EMC-07 -023 ;
efficiency of over 81% and the 4-pole low speed running mode has an efficiency of over 81%. This efficiency is in contrast to the prior art motor, such as shown in U.S. Patent Nos. 4,103,213 and 4,322,665, which have an efficiency of under 81% in the 4- pole low speed running mode, as illustrated in Table 3. [0036] Table 3--Efficiency
Figure imgf000008_0001
[0037] Fig. 3 is a winding connection diagram of the prior art motor of Fig. 1. In contrast, Fig. 4 is a winding connection diagram of the motor of Fig. 2 of the invention, illustrating the tapped 2-pole start winding requiring an extra 6th lead (T9) . This additional connection allows a portion of the 2-pole start winding (AXl) to be connected in series with the main winding (Ml) .
[0038] Fig. 5 is a diagram of a prior art switch for selectively energizing the windings of the motor of Fig. 1. Fig. 6 is a diagram of a switch according to the invention for selectively energizing the windings of the motor of Fig. 2. The switch of Fig. 6 of the invention for connecting the winding to the power supply is substantially the same as a switch of Fig. 5 of the prior art in a corresponding motor two speed, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode with 5 leads and having a 2-pole winding without a tap. However, Fig. 6 utilizes an extra set of contactors L 6, C6 and lead T9 to reconfigure the 2-pole high speed start winding .
[0039] Fig. 7 is the lamination 704 for the motor of the invention corresponding to prior art Fig. 2 of U.S. Patent No. 4,322,665. The slots of a core of a stack of such laminations EMER 2673 . 1 (EMC-07 -023 )
7 are substantially the same size as slots in a corresponding motor two speed, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode with 5 leads and having a 2-pole winding without a tap. As a result, the overall content of magnet wire energized during running in the low speed is increased without increasing magnet wire content within the slots .
[0040] Having described the invention in detail, it will be apparent that modifications and variations are possible without departing from the scope of the invention defined in the appended claims .
[0041] Thus, as shown in the Motor Performance table below, the efficiency of the motor according to the invention during the 4-pole low speed running* at 50Hz increases from 80.4% to 82.7% while the efficiency of the motor during 2-pole high speed running at 50 Hz is maintained similarly changes only slightly from 85.6% to 85.5%.
[0042] When introducing elements of aspects of the invention or the embodiments thereof, the articles "a," "an," "the," and "said" are intended to mean that there are one or more of the elements. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements.
[0043] In view of the above, it will be seen that several advantages of the invention are achieved and other advantageous results attained.
[0044] Having described aspects of the invention in detail, it will be apparent that modifications and variations are possible without departing from the scope of aspects of the invention as defined in the appended claims.
[0045] As various changes could be made in the above constructions, products, and methods without departing from the scope of aspects of the invention, it is intended that all matter contained in the above description and shown in the EMER 2673.1 (EMC-07-023)
accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims

EMER 2673 . 1 (EMC-07 -023 )WHAT IS CLAIMED IS:
1. A two speed, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode, said motor comprising : a rotor assembly; a core comprising a stack of laminations forming slots and forming a central bore for receiving the rotor assembly; a main winding positioned within the slots of the core; an auxiliary winding comprising: a tapped 2-pole auxiliary winding having a first portion and a second portion; a 4-pole auxiliary winding; and a switch adapted to be connected to a power supply, said switch connected to the windings for selectively energizing the windings, said switch configured to energize at least a portion of the auxiliary winding during start-up of the high speed mode and during start-up of low speed mode, said switch configured to energize at least a portion of the main winding during running in the high-speed mode and during running in the low speed mode, and said switch configured to energize the first portion of the tapped 2-pole auxiliary winding during running in the low speed mode thereby increasing the overall content of magnet wire energized during running in the low speed.
2. The motor of claim 1 wherein said switch is configured to energize the first portion of the 2-pole auxiliary winding during running in the high speed mode.
3. The motor of any of claims 1-2 wherein said switch is configured to energize the second portion of the 2-pole auxiliary winding during starting in the high speed mode.
4. The motor of any of claims 1-3 wherein said switch connects a common line of the power supply to a first portion of the main EMER 2673 . 1 (EMC-07 -023 )
10 winding, to the first portion of the 2-pole auxiliary winding, and to both the first portion of the main winding and the first portion of the 2-pole auxiliary winding.
5. The motor of any of claims 1-4 wherein the main and auxiliary windings comprise a consequent winding having 6 leads.
6. The motor of claim 5 wherein the slots of the core are substantially the same size as slots in a corresponding motor two speed, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode with 5 leads and having a 2-pole winding without a tap thereby increasing the overall content of magnet wire energized during running in the low speed without increasing magnet wire content within the slots.
7. The motor of claim 6 wherein said switch is configured to energize the first portion of the 2-pole auxiliary winding during running in the high speed mode, and wherein said switch is configured to energize the second portion of the 2-pole auxiliary winding during running in the high speed mode.
8. The motor of claim 7 wherein the 2-pole high speed mode has an efficiency of over 81% and the 4-pole low speed mode has an efficiency of over 81%.
9. The motor of claim 8 wherein said switch connects a common line of the power supply to a first portion of the main winding, to the first portion of the 2-pole auxiliary winding, and to both the first portion of the main winding and the first portion of the 2-pole auxiliary winding.
10. The motor of any of claims 1-9 wherein the switch is substantially the same as a switch in a corresponding motor two speed, single phase induction motor having a 2-pole high speed mode and 4-pole low speed mode with 5 leads and having a 2-pole winding without a tap.
PCT/US2009/053348 2008-08-18 2009-08-11 Two speed induction motor with tapped auxiliary winding Ceased WO2010021867A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
MX2011001863A MX2011001863A (en) 2008-08-18 2009-08-11 Two speed induction motor with tapped auxiliary winding.
CN2009801321007A CN102124638B (en) 2008-08-18 2009-08-11 Two-speed induction motor with auxiliary winding with center tap
KR1020117005891A KR101234489B1 (en) 2008-08-18 2009-08-11 Two speed induction motor with tapped auxiliary winding

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US12/193,289 2008-08-18
US12/193,289 US7911175B2 (en) 2008-08-18 2008-08-18 Two speed induction motor with tapped auxiliary winding

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WO2010021867A3 WO2010021867A3 (en) 2010-05-14

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TWI551006B (en) * 2015-10-13 2016-09-21 財團法人工業技術研究院 Hybird dual-rotor motor structure
WO2018146604A1 (en) * 2017-02-13 2018-08-16 Tvs Motor Company Limited Auxiliary coil for an electric machine
CN107888032B (en) * 2017-12-11 2019-07-09 利欧集团浙江泵业有限公司 A kind of single-phase double speed twin voltage asynchronous motor
KR102239648B1 (en) 2019-05-10 2021-04-13 주식회사 파세코 A fan-motor control device for airconditioner of window type
KR102240995B1 (en) 2019-08-05 2021-04-16 주식회사 파세코 A control device for abnormal temperature on an airconditioner of window type
KR102488510B1 (en) 2021-04-09 2023-01-17 주식회사 파세코 A control method for cave winds in window air conditioners
KR102442407B1 (en) 2021-04-09 2022-09-13 주식회사 파세코 A window type air conditioner with self-evaporation monitoring function
KR102536962B1 (en) 2021-04-09 2023-05-26 주식회사 파세코 A control circuit device of window type air conditioner integrating main control and inverter control
KR102524048B1 (en) * 2021-09-28 2023-04-21 (주)루슨트코리아 Motor that can change velocity and efficiency range due to change of velocity

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103213A (en) 1976-09-16 1978-07-25 Emerson Electric Co. Two speed single phase induction motor
US4322665A (en) * 1979-07-09 1982-03-30 Emerson Electric Co. Two speed single phase motor
US4476422A (en) * 1983-04-11 1984-10-09 Westinghouse Electric Corp. Single phase four pole/six pole motor
US4737701A (en) * 1983-04-29 1988-04-12 Emerson Electric Co. Tapped auxiliary winding for multi-speed operation of electric motor and method therefor
US4486699A (en) * 1983-04-29 1984-12-04 Emerson Electric Co. Tapped auxiliary winding for multi-speed operation of electric motor and method therefor
US4937513A (en) * 1983-04-29 1990-06-26 Emerson Electric Co. Tapped auxiliary winding for multi-speed operation of electric motor and method therefor
JP2788038B2 (en) * 1988-11-29 1998-08-20 ファナック株式会社 Low / high-speed output switching type AC spindle motor and its low / high-speed output switching method
JPH05252708A (en) 1992-03-03 1993-09-28 Matsushita Electric Ind Co Ltd Single-phase induction start type synchronous motor
US6255755B1 (en) * 1998-06-04 2001-07-03 Renyan W. Fei Single phase three speed motor with shared windings
US6175209B1 (en) * 1999-07-08 2001-01-16 Emerson Electric Co. 2/4-pole PSC motor with shared main winding and shared auxiliary winding
US6271639B1 (en) * 2000-02-08 2001-08-07 Emerson Electric Co. Capacitor start single phase induction motor with partial winding starting
US6788031B2 (en) * 2001-01-26 2004-09-07 Larry Stuart Pendell Induction generator system and method
US6741061B2 (en) * 2001-05-24 2004-05-25 Comair Rotron, Inc. Efficient stator
US6815926B2 (en) * 2002-02-06 2004-11-09 Emerson Electric Co. Single phase induction motor with partially shared windings
US20030151384A1 (en) * 2002-02-12 2003-08-14 Woodward Richard C. 2-start, 4 pole single-phase motor
US6707214B1 (en) 2002-08-28 2004-03-16 Emerson Electric Co. PSC motor having a 4/6-pole common winding and having an additional 4-pole winding
DE602005017970D1 (en) * 2004-04-24 2010-01-14 Lg Electronics Inc Variable speed motor
KR100688183B1 (en) 2004-04-24 2007-03-02 엘지전자 주식회사 Variable speed motor
KR100688185B1 (en) * 2004-05-28 2007-03-02 엘지전자 주식회사 Variable speed motor
US7746025B2 (en) * 2005-02-14 2010-06-29 Lg Electronics Inc. Variable speed motor
US7598648B2 (en) * 2005-12-05 2009-10-06 Emerson Electric Co. 2/6 pole single-phase induction motor having shared windings
KR100768046B1 (en) 2005-12-29 2007-10-18 엘지전자 주식회사 Variable speed control device and method of hybrid induction motor
US7977842B2 (en) * 2006-10-05 2011-07-12 Lin Panchien Adaptive winding system and control method for electric machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2450409C1 (en) * 2010-02-03 2012-05-10 Приватное Акционерное Общество "Донецксталь" - Металлургический Завод" Asynchronous double-speed motor

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