ES341727A1 - Improvements in or relating to laundry machines - Google Patents
Improvements in or relating to laundry machinesInfo
- Publication number
- ES341727A1 ES341727A1 ES341727A ES341727A ES341727A1 ES 341727 A1 ES341727 A1 ES 341727A1 ES 341727 A ES341727 A ES 341727A ES 341727 A ES341727 A ES 341727A ES 341727 A1 ES341727 A1 ES 341727A1
- Authority
- ES
- Spain
- 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 arrangementsÂ
- 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)
- Control Of Washing Machine And Dryer (AREA)
- Motor And Converter Starters (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
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 |
---|---|
ES341727A1 true ES341727A1 (en) | 1968-07-01 |
Family
ID=23934075
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0331121A Expired ES331121A1 (en) | 1965-09-13 | 1966-09-12 | A washing machine. (Machine-translation by Google Translate, not legally binding) |
ES341727A Expired ES341727A1 (en) | 1965-09-13 | 1967-06-13 | Improvements in or relating to laundry machines |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0331121A Expired ES331121A1 (en) | 1965-09-13 | 1966-09-12 | A washing machine. (Machine-translation by Google Translate, not legally binding) |
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) |
Families Citing this family (4)
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 | ||
US4412158A (en) * | 1980-02-21 | 1983-10-25 | Black & Decker Inc. | Speed control circuit for an electric power tool |
-
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
Also Published As
Publication number | Publication date |
---|---|
JPS5219030B1 (en) | 1977-05-25 |
CH442210A (en) | 1967-08-31 |
ES331121A1 (en) | 1967-09-16 |
GB1107938A (en) | 1968-03-27 |
SE326753B (en) | 1970-08-03 |
NL6612866A (en) | 1967-03-14 |
JPS494242B1 (en) | 1974-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3344328A (en) | Direct current motor plugging circuit | |
GB1121941A (en) | Control arrangements for d.c. motors | |
GB1440475A (en) | Static converter | |
GB1213885A (en) | Electric-motor speed control | |
ES341727A1 (en) | Improvements in or relating to laundry machines | |
US3223911A (en) | Motor speed control system | |
GB1358494A (en) | Washing machine control circuit | |
GB1195179A (en) | Driving Arrangement for the Drum of a Wahsing Machine. | |
GB1459835A (en) | Electric motor control apparatus | |
US3264544A (en) | Counter e. m. f. speed control | |
ES362232A1 (en) | Control systems for electric motors | |
US3335351A (en) | Dc motor control circuit | |
US3582740A (en) | Reversible speed dc motor controller utilizing resonant field reversal | |
US3519911A (en) | Alternating current motor starting control | |
US3493834A (en) | Motor speed control apparatus | |
GB1410477A (en) | Circuit arrangement for the speed control of single phase series commutator motors | |
US3541412A (en) | Control for alternating-current motors | |
GB1079525A (en) | Speed control system for centrifuge motors and the like | |
US3443185A (en) | Circuitry and method of striking thyristors in inverse-parallel operation | |
GB1359194A (en) | Device for speed regulation of direct current motors supplied from ac mains | |
GB1529210A (en) | Safety supply circuit for washing machine drum driving motors | |
US3553548A (en) | Plural motor system for washing machine | |
JPS6464572A (en) | Braking circuit for motor | |
GB1117689A (en) | An electric control system for controlling the sequential operation of an appliance | |
SU1007007A1 (en) | Engine rotation speed measuring device |