Classifications

• • 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
  • D06F29/00—Combinations of a washing machine with other separate apparatus in a common frame or the like, e.g. with rinsing apparatus
• • 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
  • D06F29/00—Combinations of a washing machine with other separate apparatus in a common frame or the like, e.g. with rinsing apparatus
  • D06F29/005—Combinations of a washing machine with other separate apparatus in a common frame or the like, e.g. with rinsing apparatus the other separate apparatus being a drying appliance
• • 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
  • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
  • D06F34/10—Power supply arrangements, e.g. stand-by circuits
• • 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
  • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
  • D06F2103/44—Current or voltage
• • 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
  • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
  • D06F2105/28—Electric heating
• • 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
  • D06F33/00—Control of operations performed in washing machines or washer-dryers 
  • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
• • 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
  • D06F58/00—Domestic laundry dryers
  • D06F58/32—Control of operations performed in domestic laundry dryers 
  • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
  • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry

Definitions

• the present invention relates to a system including a washer and a dryer, and more particularly to a combined clothes washer and dryer system capable of adjusting a working current and a control method of the system.
• the combination of a washer and a dryer is increasingly more popular.
• the washer and the dryer have mutually independent heaters respectively, so that when the washer and the dryer are used at the same time, the two heaters work simultaneously, which may result in an excessively large working current of the whole system, thereby possibly exceeding predetermined current load limits or even impairing safety. If the washer and the dryer are separately wired and connected to the power supply network, the cost will be increased.
• a control circuit of a combined clothes washer and dryer system is disclosed.
• the control circuit detects that a washer is working, the control circuit performs half-wave adjustment on a dryer heater and a dryer motor through a diode serially connected to the dryer heater until the washer ends its program.
• a working current of the whole system is controlled within a predetermined current range to prevent the working current from being excessively high.
• the above two patents provide for controlling a working current of the whole system within a rated working current range, the work efficiency is sacrificed.
• the manner of controlling a working current of the whole system by controlling a dryer heater or a dryer motor is not suitable for the case where a washer in an existing combined clothes washer and dryer system also has a heater.
• control is performed in a mechanical manner, which makes the schedules inflexible.
• the present invention is directed to a combined clothes washer and dryer system, capable of controlling a system working current flexibly.
• the present invention provides a system which includes a washer and a dryer.
• the washer includes a washer control system for controlling an operation of the washer and a washer heater
• the dryer includes a dryer control system for controlling an operation of the dryer and a dryer heater.
• At least one of the washer control system and the dryer control system further includes a power source management module for controlling a working current of the washer heater or the dryer heater according to a system working current.
• the power source management module includes a control circuit for controlling the washer heater or the dryer heater.
• the control circuit includes a first switching device serially connected to the washer heater or the dryer heater, and a device for decreasing a working power of the washer heater or the dryer heater.
• the device for decreasing the working power of the washer heater or the dryer heater includes a diode connected in parallel with the washer heater or the dryer heater and a second switching device serially connected to the diode.
• the first switching device and the second switching device are relays.
• the power source management module includes a sampling circuit for collecting the system working current, an analog-to- digital converting device for performing analog-to-digital conversion on the collected system working current, and a comparing device for comparing a value obtained by performing the analog-to-digital conversion on the system working current with a preset safety working current value.
• control circuit controls the working current of the washer heater or the dryer heater according to an output of the comparing device.
• system includes a dryer power plug, a connection socket disposed on the dryer or the washer, and a washer power plug.
• the dryer power plug or the washer power plug is inserted into the connection socket.
• the present invention is also directed to a control method of a combined clothes washer and dryer system, capable of controlling a system working current flexibly.
• the present invention provides a control method of a combined clothes washer and dryer system.
• the combined clothes washer and dryer system includes a washer and a dryer.
• the washer includes a washer heater
• the dryer includes a dryer heater.
• the method includes the following steps. a) The washer and the dryer are electrically connected, and a power source is turned on to start working. b) A system working current is detected. c) A working current of the washer heater or the dryer heater is controlled according to the system working current.
• Step b includes collecting the system working current, and performing analog-to-digital conversion on the collected system working current.
• Step c includes comparing a value obtained by performing the analog-to-digital conversion on the system working current with a preset safety working current value, and controlling the working current of the washer heater or the dryer heater according to a comparison result.
• the step of controlling the working current of the washer heater or the dryer heater includes cutting off the working current of the washer heater or the dryer heater, or performing half-wave control on the washer heater or the dryer heater.
• the half-wave control is performed on the washer heater or the dryer heater, and the detection of the system working current is continued. If the value obtained by performing the analog— to-digital conversion on the system working current is still greater than the safety working current value, the working current of the washer heater or the dryer heater is disabled.
• Beneficial effects of the present invention are as follows.
• a washer and a dryer can work at the same time, an excessively large working current can be avoided, and high work efficiency is achieved.
• due to adoption of logic control increase of system cost is very small, and an actual working current can by judged quantitatively and precisely. Additionally, safety is enhanced, and the cost of separate electrical wiring for a large current born by a user is reduced.
• FIG. 1 is a three-dimensional perspective view of a combined clothes washer and dryer system
• FIG. 2 is a rear view of a combined clothes washer and dryer system
• FIG. 3 is a system circuit diagram of a combined clothes washer and dryer system
• FIG. 4 is schematic view of a control system of a combined clothes washer and dryer system.
• FIG. 1 it is a three-dimensional perspective view of a combined clothes washer and dryer system.
• the combined clothes washer and dryer system includes a washer 10, a washer control system 1 1 , a washer heater 12, a dryer 20, a dryer control system 21 , and a dryer heater 22.
• the washer control system 1 1 controls a washing process of the washer 10, and the dryer control system 21 controls a drying process of the dryer 20.
• the combined clothes washer and dryer system 1 further includes a dryer power plug 2 located in a rear end of the dryer 20, a connection socket 3 for external connection, and a washer power plug 4 located in a rear end of the washer 10.
• the connection socket 3 may be disposed in the rear end of the dryer 20 or in the rear end of the washer 10.
• the washer power plug 4 is inserted into the connection socket 3 to implement electrical connection.
• the washer 10 and the dryer 20 may also be used separately, which can be achieved by just inserting the corresponding washer power plug 4 or the dryer power plug 2 into an external power supply.
• the dryer power plug 2, the connection socket 3, and the washer power plug 4 comply with the GB1002 standard.
• the dryer control system 21 further includes a power source management module 23 for controlling the system current.
• the power source management module 23 may also be disposed in the washer control system 1 1 to control the washer heater 12.
• the power source management module 23 includes a first control circuit 24 for adjusting a working current of the dryer heater 22.
• the first control circuit 24 includes a first relay 27 serially connected to the dryer heater 22, a diode 26 connected in parallel with the dryer heater 22, and a second relay 28 serially connected to the diode 26.
• the washer control system 1 1 includes a second control circuit 14 for controlling an operation of the washer heater 12.
• the second control circuit 14 includes a third relay 17 serially connected to the washer heater 12.
• the third relay 17 is disconnected, the power supply to the washer heater 12 is stopped, and the washer heater 12 stops heating.
• the second control circuit 14 includes a diode and a relay connected in parallel with the washer heater 12, so as to perform half-wave control on the washer heater 12.
• the power source management module 23 further includes a sampling circuit 5, an analog to digital converting device 6, and a comparing device 7.
• the sampling circuit 5 includes a sampling resistor 8 for collecting a current of a working circuit of the system.
• the power source management module 23 collects the system working current through the sampling circuit 5, performs analog to digital conversion on the collected current value through the analog to digital converting device 6, and compares the converted value with a preset safety working current through the comparing device 7.
• the safety working current value may be changed according to actual situations to meet requirements of various customers in various regions.
• the power source management module 23 enables the second relay 28 to be connected to perform the half-wave control on the dryer heater 22. If at the moment, the system working current collected by the power source management module 23 through the sampling circuit 5 is still greater than the safety working current, the first relay 27 is disconnected to enable dryer heater 22 to stop working, so as to guarantee that the system working current is within a safety working current range.
• the power source management module 23 enables the first relay 27 to be connected and the second relay 28 to be disconnected, and at the moment, the dryer heater 22 is supplied with power normally and continues heating. If at the moment, it is detected that the system working current is greater than the working current, the second relay 28 is connected to perform the half-wave control on the dryer heater 22. Therefore, in the combined clothes washer and dryer system according to the present invention, logic judgment can be performed on the system working current through the power source management module in a real time manner, and the working current controlling the dryer heater or the washer heater can be controlled separately according to a judgment result.
• the power to the heater may be completely cut off, or the half-wave control may be performed on the heater, so that the working current of the whole system is decreased to be within the safety working current range.
• the whole process is implemented completely by logic control, and the control manner is flexible and precise, so that the safety of the system is greatly enhanced, and the cost of separate electrical wiring for a large current born by a family is avoided.
• the power source management module can restore the power supply to the dryer heater, which increases the work efficiency of the system on the basis of safety electricity consumption.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Control Of Washing Machine And Dryer (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43639944

Family Applications (1)

Country Status (2)

Cited By (7)

Families Citing this family (24)

Citations (6)

Family Cites Families (3)

• 2010
  • 2010-07-19 CN CN201010237876XA patent/CN102061590A/zh active Pending
  • 2010-11-05 WO PCT/EP2010/066856 patent/WO2011057955A1/en active Application Filing

Patent Citations (6)

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