GB1107938A - Improvements in or relating to laundry machines - Google Patents
Improvements in or relating to laundry machinesInfo
- Publication number
- GB1107938A GB1107938A GB33103/66A GB3310366A GB1107938A GB 1107938 A GB1107938 A GB 1107938A GB 33103/66 A GB33103/66 A GB 33103/66A GB 3310366 A GB3310366 A GB 3310366A GB 1107938 A GB1107938 A GB 1107938A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- circuit
- voltage
- transistor
- controlled rectifiers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/10—Commutator motors, e.g. repulsion motors
-
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/10—Commutator motors, e.g. repulsion motors
- H02P25/14—Universal motors
-
- 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
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/10—Commutator motors, e.g. repulsion motors
- H02P25/14—Universal motors
- H02P25/145—Universal motors whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value, speed feedback
-
- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
- H02P7/04—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of a H-bridge circuit
-
- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
- H02P7/293—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC using phase control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Textile Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Motor And Converter Starters (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
1,107,938. Control of motors. WHIRLPOOLCORPORATION. 22 July, 1966 [13 Sept., 1965], No. 33103/66. Heading H2J. [Also in Divisions D1 and G3] Field windings 98, 99, of motor 30 are selectively energized to control the movement of the basket 28 or the agitator 29 of a washing machine. When capacitor 112 is charged from source 72 to the level required for firing unijunction transistor 111, a pulse is developed which fires two of the silicon controlled rectifiers 82-85 and supplies power to one of the field windings to drive the motor. Switches 129, 130, are cam-operated to a " spin " position by timer motor 56 to energize field winding 99 only, a switch 107 short-circuiting a portion of the field winding for operation at higher speed. Gating pulses for the controlled rectifiers are derived from transformer primary windings 126, 127, associated with magnetic reed switch 128 controllable in accordance with the position of either the agitator or the basket. Sensor 74 detects excessive motor current to reduce the voltage applied to the motor. Circuit 79 provides an input to transistor 119 proportional to motor voltage. If this voltage increases, the conduction of transistor 119 is increased to extend the charging time of capacitor 112 and so delay the triggering of the unijunction transistor 111. A sensor 76 also increases the conduction of transistor 119 with increased line voltage. A motor speed sensor comprises a bridge circuit including the armature 97 and resistors 100, 134-136. Variations in the output of this circuit are amplified by transistor 119 to control the speed. When switch 137 is actuated to the " spin " position, the resistor 136 is adjusted to allow increased speed. A delay pulse circuit is connected between the firing angle control circuit 77 and the motor reversing circuit 78, so that, when the reed switch 128 is being changed-over, a delay pulse restricts the firing of the unijunction transistor 111 until the switch is in a position for allowing pulses to be applied to the appropriate transformer winding. In another embodiment, the motor reversing circuit 78 and the delay pulse circuit are replaced by a flip-flop circuit associated with a relaxation oscillator circuit. The speed of the motor may be detected by a tachometer generator the output of which is filtered and compared with the voltage of a Zener diode for firing angle control. The supply voltage for the motor 30 may be rectified initially so that only two silicon controlled rectifiers are required in the motor circuit. The armature current is detected for controlling the firing angle of the rectifiers. In a modified form of the motor circuit, a single field winding is connected in series with the armature which is in a bridge arrangement of four controlled rectifiers. The driving motor may be of the split-phase type the auxiliary winding of which is centre-tapped and connected to alternate pairs of controlled rectifiers. In a system for a D.C. shunt motor, the armature is in a bridge circuit comprising both controlled and uncontrolled rectifiers, the field winding being split and associated with further controlled rectifiers whose gating is determined by the reed switch. In other embodiments, the drive motor for the washing machine is of the three-lead reversible A.C. type or of the permanent magnet type. Alternatively, a universal motor may be employed for this purpose. The motor circuit may comprise a multi-layer switching device which allows conduction in either direction when a voltagepulse is developed across its terminals of sufficient value, the maintaining voltage being at a lesser value.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487019A US3369381A (en) | 1965-09-13 | 1965-09-13 | Electronic control circuit for direct drive automatic |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1107938A true GB1107938A (en) | 1968-03-27 |
Family
ID=23934075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33103/66A Expired GB1107938A (en) | 1965-09-13 | 1966-07-22 | Improvements in or relating to laundry machines |
Country Status (6)
Country | Link |
---|---|
JP (2) | JPS494242B1 (en) |
CH (1) | CH442210A (en) |
ES (2) | ES331121A1 (en) |
GB (1) | GB1107938A (en) |
NL (1) | NL6612866A (en) |
SE (1) | SE326753B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0034822A1 (en) * | 1980-02-21 | 1981-09-02 | Black & Decker Inc. | Speed control circuit for an electric power tool |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5197841A (en) * | 1975-02-25 | 1976-08-28 | ||
JPS51113248U (en) * | 1975-03-10 | 1976-09-14 | ||
JPS52153151U (en) * | 1976-05-17 | 1977-11-19 |
-
1966
- 1966-07-22 GB GB33103/66A patent/GB1107938A/en not_active Expired
- 1966-09-02 SE SE11886/66A patent/SE326753B/xx unknown
- 1966-09-12 ES ES0331121A patent/ES331121A1/en not_active Expired
- 1966-09-13 NL NL6612866A patent/NL6612866A/xx unknown
- 1966-09-13 CH CH1326966A patent/CH442210A/en unknown
- 1966-09-13 JP JP41060232A patent/JPS494242B1/ja active Pending
-
1967
- 1967-06-13 ES ES341727A patent/ES341727A1/en not_active Expired
-
1971
- 1971-01-19 JP JP711112A patent/JPS5219030B1/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0034822A1 (en) * | 1980-02-21 | 1981-09-02 | Black & Decker Inc. | Speed control circuit for an electric power tool |
Also Published As
Publication number | Publication date |
---|---|
ES331121A1 (en) | 1967-09-16 |
ES341727A1 (en) | 1968-07-01 |
CH442210A (en) | 1967-08-31 |
JPS494242B1 (en) | 1974-01-31 |
JPS5219030B1 (en) | 1977-05-25 |
SE326753B (en) | 1970-08-03 |
NL6612866A (en) | 1967-03-14 |
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