FR2486975A1 - WASHING MACHINE WITH ENHANCED ENERGY SAVING - Google Patents

Abstract

ENERGY SAVING WASHING MACHINE. MACHINE EQUIPPED WITH A PROGRAMMER, A "PRE-WASH" PROGRAM PHASE CHOOSING ON A SELECTOR AND AN ELECTRIC HEATING DEVICE. A SWITCH 5 WHICH, IN AT LEAST ONE POSITION OF THE PROGRAM SELECTOR, CUT OFF DURING THE "PREWASH" PROGRAM PHASE THE CIRCUIT THAT CAN BE PLUGGED FOR THE HEATING DEVICE 3 BY THE PROGRAMMER IS CONJUDE WITH HIS PROGRAM SELECTOR. THE INVENTION IS ALSO READY TO SAVE ENERGY IN THE MAIN WASH AT 60 WITH PREWASH AND THE MAIN WASH WITH PREWASH, OF EASY-PROCESSING LAUNDRY.

Description

"Power saving washing machine."

  The present invention relates to a washing machine dis-

  of a programmer, a "pre-wash" program, choose

  sand on a program selector and a device

Electric heating.

  In such known washing machines, it has been planned for some years so-called energy saving programs that are selectable by means of a specific position of the program selector or an additional key. The programs

  such energy saving programs replace

  Normal broth wash and have a lower wash effect. They are therefore only used for

  laundry with a dirt easy to make-disappear.

  To compensate for the lower washing effect due to a temperature

  The lower wash rate, ie 600.degree. C. instead of 900.degree. C., considerably prolongs the active washing time to 60.degree. C., for example. Since the detergent bath is only to be heated at a lower temperature than in the broth wash, considerable energy saving is achieved, although the washing effect can be observed with the naked eye on the laundry in case of soiling.

  easy to eliminate is almost equivalent to that of the

bring me to a boil.

  The invention relates to a washing machine whose energy consumption is further reduced in the

  laundry programs with dirt easy to eliminate.

  This washing machine is characterized in that a switch which, in at least one position of the program selector, cuts during the program phase "prewash" the circuit connectable for the heating device by the

  programmer is conjugated with said program selector.

  In the washing machines known, it was consistent with the previously prevailing opinion that, in the operation of the prewash, it is necessary to heat the cold bath to a temperature of about 450C in a period of time of the order of 15 to 20 minutes. In programs

  said of energy saving, it was therefore removed -

  often prewash. This led to an economy that

  additional energy, but the dirt easily removed

  It was transferred to the main detergent and blocked some of the substances contained in the detergent for suspensive purposes. The result of the washing was thus poor. Besides the energy saving, the invention offers the additional advantage that the cold prewash removes easily removable dirt, based for example on cooking salt, urea, sugar, starch, dust or black smoke or other pigments and protects from this load the washing

  The result is much better.

  In a preferred embodiment of the invention, the position of the program selector corresponding to the cut-off of the heating circuit during the prewash is at the same time the position / for a power saving program "main wash 600C with Pre-washing '"The user of the machine thus chooses

  easily the appropriate program combination.

  According to another advantageous advantageous feature of the invention,

  vention, the position of the program selector corresponding to the shutdown of the heating circuit during the prewash is

  at the same time the desired position for a "main washing"

  easy pre-wash treatment. "Until now, energy saving programs were only planned for the broth wash.

  we can not lower the temperature of operations

  the main line of easily treated textiles, temperature of 40 ° C or 600 ° C, it has not been possible so far to wash in energy saving, under the same conditions, such

  textiles with easy processing. The above extension of the

  vention allows for the first time an economical energy washing of these textiles by cutting the heating during the prewash.

  The invention will be better understood by means of the description

  detailed description of an embodiment taken as an example

  non-limiting and schematically illustrated by the drawing

nexed.

  To the conductors of sector 1 and 2 is reliable a provision

  3, for example by a cam contact 4 of a programmer not shown and a switch 5

  a program selector. The cam contact 4 has two posi-

  closures. The one on the left leads by line 6 direc-

  Heating device 3 can, for example, be established during the main wash. The right position brings the voltage, by the switch 5, to the heating device 3 during the "pre-wash" program phase. This switch 5 is closed only during a normal program. If we post

  on the selector a program of energy saving, the interrup-

  5 opens and the cam contact 4 moves to its position of

  right remains inoperative for the heater 3.

  A similar arrangement is obtained for an economic program.

  of energy applicable to easy-to-process laundry by the addition of a so-called "program" switch

economical-easy treatment ".

  The application of the invention in programs of la-

  An economic saving of broth gives an energy saving of about 0.4 kWh on a complete wash. Easy wash-treatment programs can be run with two levels

  different baths: the invention makes it possible to save energy

  25% at the top level and 10% at

lower calf.

Claims (3)

  1.- Washing machine equipped with a programmer, a phasing   program "prewash" selectable on a selector   program and an electric heating device and   characterized in that a switch which, in at least one position of the program selector, cuts during the program phase "prewash" the plug-in circuit for the heater (3) by the programmer is conjugated with said program selector ..   2. Washing machine according to claim 1 characterized   in that the position of the program selector corresponds to   when the heating circuit is interrupted during the   is at the same time the desired position for a program   energy saving "main wash 600C with prewash".   3. Washing machine according to claim 1 characterized   in that the position of the program selector corresponds to   when the heating circuit is interrupted during the   is at the same time the desired position for a program   "main wash -easy treatment with prewash."