EP0326800A2 - Machine à laver commandée automatiquement - Google Patents

Machine à laver commandée automatiquement Download PDF

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Publication number
EP0326800A2
EP0326800A2 EP89100081A EP89100081A EP0326800A2 EP 0326800 A2 EP0326800 A2 EP 0326800A2 EP 89100081 A EP89100081 A EP 89100081A EP 89100081 A EP89100081 A EP 89100081A EP 0326800 A2 EP0326800 A2 EP 0326800A2
Authority
EP
European Patent Office
Prior art keywords
program
temperature
temperature sensor
washing
roller
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.)
Granted
Application number
EP89100081A
Other languages
German (de)
English (en)
Other versions
EP0326800B1 (fr
EP0326800A3 (en
Inventor
Georg Kirmes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
Bosch Siemens Hausgerate GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bosch Siemens Hausgerate GmbH filed Critical Bosch Siemens Hausgerate GmbH
Publication of EP0326800A2 publication Critical patent/EP0326800A2/fr
Publication of EP0326800A3 publication Critical patent/EP0326800A3/de
Application granted granted Critical
Publication of EP0326800B1 publication Critical patent/EP0326800B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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

Definitions

  • the invention is based on an automatically controlled washing machine with a program control device, whose program roller, which can be switched in steps of a maximum of 5 minutes, can be separated from the drive by means of a switchable coupling magnet, and with automatically running program sequences for pre-wash and rinse-wash programs for washing hot, colored and easy-care clothes Laundry as well as for a wool washing program and also with a temperature sensor that can be set to a response temperature between the temperature of the unheated fresh water and the boiling temperature of the water, and with an additional one to an on speaking temperature set below a fixed temperature sensor of 40 ° C, which can be switched on and off in one recurring program step of each pre-wash program by a program switch controlled by the program roller.
  • Such washing machines are known. To maintain an alkali temperature of 30 ° C to a maximum of 40 ° C during the wool washing program, they contain a specially designed temperature sensor.
  • the invention has for its object that in an automatically controlled washing machine of the type mentioned, a temperature sensor provided specifically for monitoring the alkali temperature can only be dispensed with in the wool washing program.
  • this object is achieved in that the fixed temperature sensor can also be switched effectively at the beginning of the wool washing program and, when or when it reaches an approx. 10 to 15 K below the maximum temperature deemed permissible for washing wool, a control signal for releases the coupling magnet, which then couples the program roller again to the drive.
  • the existing fixed temperature sensor which already monitors the suds heating in the prewash program, can also be used to monitor the suds heating in the wool washing program. Since it cannot be predetermined (unknown amount of laundry, unknown starting temperature) when the switching temperature will be reached, the switching temperature is designed to be lower than the temperature that is considered the maximum possible washing temperature for wool (depending on the circumstances of the washing machine, e.g. 8 K) or 10 K up to 15 baits up to 18 K below the wool washing temperature).
  • the temperature at which the fixed temperature sensor emits the control signal for the coupling magnet has proven to be particularly suitable at 30 ° C. With a step length of, for example, 5 minutes and a maximum possible loading of the washing machine of a given heat capacity, the temperature of the amount of alkali present is increased by just 10 K within one step length. The final temperature of 40 ° C is just acceptable for machine washable wool textiles.
  • the program roller which is coupled again and moved to the next step, can only be moved from the next step to the next but one step by the drive after a complete step rotation of the drive .
  • the next but one step will then be a rinse program heating step, during which the suds heating device can be effectively switched via the adjustable temperature sensor.
  • the adjustable temperature sensor can (possibly inadvertently) also be set to a temperature higher than 40 ° C; nevertheless, the subsequent suds heating, which is limited to a maximum of one stride length, will not reach a higher temperature. The wool remains protected in any case.
  • the mains voltage is on lines L1 and L2. It can be switched off by switches not shown here. Dashed lines indicate that further switching elements can be arranged in the course of these lines. Otherwise, the circuit arrangement is only to be regarded as schematic, because further switching measures can be taken at points of the line which are not specified in more detail
  • the program control unit has a program roller PW which can be uncoupled from the drive motor M by means of a switchable clutch K.
  • the coupling between motor M and program roller PW is effective when the coupling magnet KM is switched on.
  • the program contacts 2, 13, 14 and 15 are controlled by the program roller PW, they are marked with the same symbol (circle).
  • the drive motor M is only energized when one of the two water level sensors S2 or S3 has recognized its associated level and has closed its switch.
  • the program switch 2 is switched by the program roller PW to one of its two contacts 22 or 23 after the selection of a program.
  • a solenoid valve is also switched on, which enables water to be supplied until one of the two water level sensors mentioned above has switched.
  • the program switch 15 closes the circuit for the heating relay R, which, with its two switches R1 and R2, applies voltage to the suds heater H at both poles.
  • the KM coupling magnet initially remains de-energized, although the program switches 13 and 14 are also closed and have prepared circuits for the coupling magnet. However, since both the fixed temperature sensor S5 and the adjustable temperature sensor S4 have not yet switched the prepared circuits, the Coupling magnet is not live. The program roller PW therefore stops.
  • the adjustable temperature sensor S4 Since the adjustable temperature sensor S4 has a priority here, it can be set to the temperature of the unheated fresh water and then immediately switch the circuit for the coupling magnet KM via the program contact 13. Then both a pre-wash program and the wool wash program with cold lye run. However, if the adjustable temperature sensor S4 is set to a temperature that is the same as or higher than the switching temperature of the fixed temperature sensor S5, e.g. 30 ° C, the fixed temperature sensor switches and switches when the switching temperature is reached due to the alkali temperature therefore the coupling magnet KM via the program contact 14 in voltage. The program roller PW is thus moved out of this temperature stop heating step and set to the next step (the synchronization step). Here, the program switch 15 is open.
  • the program roller Depending on the position of the program roller in relation to the current position of the roller drive, the program roller remains for a more or less long time until the driver of the drive detects the coupling point of the roller and continues to rotate. As a result, the roller is synchronized with the drive.
  • the roller is moved to the next but one step, which is a rinse program heating step, that is, from the program switches shown, only the program switch 15 closes the circuit for the heating relay R, the switches R1 and R2 of which supply the detergent heater H with voltage .
  • the circuit of the heating relay R there is also the switch of the adjustable temperature sensor S4, which from now on monitors the temperature of the further heated lye. If the alkali temperature within this heating step of the program roller PW reaches the set switching temperature of the temperature sensor S4, then he switches his switch from contact 41 to contact 42 and thus opens the circuit for heating relay R. The other circuit via contact 42 remains ineffective because the program switch 13 is open. After the heating step, the program switch 15 is opened again.
  • the alkali temperature reaches the set switching temperature on the temperature sensor S4 during the heating step not, then the alkali heating is ended in a time-limited manner by opening the program switch 15.
  • the alkali only warmed up by 10 K anyway, ie from previously 30 ° C to a maximum of 40 ° C. This applies to machine-washable wool as the maximum permissible washing temperature.
  • the control circuit for a washing machine according to the invention can also be made such that the synchronization of the program roller with the roller drive takes place only after the time-limited heating step has elapsed.
  • the lower setting of the fixed temperature sensor to, for example, 22 ° is sufficient C or 25 ° C and the synchronization of the program roller with its drive during the heating step, which can then take longer than 5 minutes.
  • the time-limited further heating within this heating step then compensates for the alkali temperature after the heating has been switched off by the fixed temperature sensor S5 at, for example, 22 ° C by reheating from at least 8 K to at least 30 ° C up to 18 K to a maximum of 40 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Ceramic Products (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP19890100081 1988-02-05 1989-01-04 Machine à laver commandée automatiquement Expired - Lifetime EP0326800B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3803532 1988-02-05
DE3803532A DE3803532A1 (de) 1988-02-05 1988-02-05 Automatisch gesteuerte waschmaschine

Publications (3)

Publication Number Publication Date
EP0326800A2 true EP0326800A2 (fr) 1989-08-09
EP0326800A3 EP0326800A3 (en) 1990-04-04
EP0326800B1 EP0326800B1 (fr) 1992-10-28

Family

ID=6346739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890100081 Expired - Lifetime EP0326800B1 (fr) 1988-02-05 1989-01-04 Machine à laver commandée automatiquement

Country Status (4)

Country Link
EP (1) EP0326800B1 (fr)
DE (2) DE3803532A1 (fr)
ES (1) ES2035372T3 (fr)
TR (1) TR23760A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504052A1 (fr) * 1991-03-12 1992-09-16 Ciapem Appareil électroménager à programmateur comprenant une base de temps électromécanique et une base de temps électronique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10046042A1 (de) * 2000-09-18 2002-03-28 Friedhelm Herzog Windkraftanlage
ES2320836B1 (es) * 2007-06-01 2010-01-29 Ingenieria Para El Desarrollo Sostenible S.L. (Ids, S.L) Dispositivo programable de control termico y temporal de una mezcla defluidos.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH383318A (de) * 1959-04-11 1964-10-31 Joseph Dr Gehrig Verfahren zum Aufheizen der Waschflüssigkeit in einer Waschmaschine
GB957944A (en) * 1960-01-15 1964-05-13 English Electric Co Ltd Improvements in or relating to automatic electric washing machines
FR1324741A (fr) * 1961-06-16 1963-04-19 Busch Jaeger Duerener Metall Commutateur-présélecteur de programme, notamment pour machines à laver électriques
FR1401243A (fr) * 1963-11-25 1965-06-04 Ad Schulthess & Co A G Maschf Appareillage pour commander suivant un programme une machine à laver automatique
DE2730865C3 (de) * 1977-07-08 1988-12-01 Bauknecht Hausgeräte GmbH, 7000 Stuttgart Haushaltswaschautomat oder Geschirrspülautomat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504052A1 (fr) * 1991-03-12 1992-09-16 Ciapem Appareil électroménager à programmateur comprenant une base de temps électromécanique et une base de temps électronique
FR2674065A1 (fr) * 1991-03-12 1992-09-18 Ciapem Appareil electromenager a programmateur comprenant une base de temps electromecanique et une base de temps electronique.

Also Published As

Publication number Publication date
TR23760A (tr) 1990-09-12
EP0326800B1 (fr) 1992-10-28
DE58902527D1 (de) 1992-12-03
ES2035372T3 (es) 1993-04-16
EP0326800A3 (en) 1990-04-04
DE3803532A1 (de) 1989-08-17

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