EP0386383A1 - Monoblock programmer, in particular for household appliances - Google Patents

Monoblock programmer, in particular for household appliances Download PDF

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Publication number
EP0386383A1
EP0386383A1 EP89403598A EP89403598A EP0386383A1 EP 0386383 A1 EP0386383 A1 EP 0386383A1 EP 89403598 A EP89403598 A EP 89403598A EP 89403598 A EP89403598 A EP 89403598A EP 0386383 A1 EP0386383 A1 EP 0386383A1
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EP
European Patent Office
Prior art keywords
group
programmer
members
block
motor
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
EP89403598A
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German (de)
French (fr)
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EP0386383B1 (en
Inventor
Hervé Purson
Denis Girardin
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.)
Noalia Solutions SA
Original Assignee
Thales Avionics SAS
Crouzet Appliance Controls SA
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Application filed by Thales Avionics SAS, Crouzet Appliance Controls SA filed Critical Thales Avionics SAS
Publication of EP0386383A1 publication Critical patent/EP0386383A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H43/101—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H2043/108—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed where at least some contacts of electromechanical timer give instructions to electronic timer and/or the timing motor is under control of electronic timer, e.g. hybrid timer

Definitions

  • the subject of the present invention is a programmer for an apparatus, or system, provided with a plurality of electrical members to be fed selectively and sequentially, a programmer comprising a block of cams cooperating with a plurality of contacts for supplying said members, and means of driving said block in displacement.
  • Such a programmer is used in particular in the household appliance field, for devices such as washing machines for washing clothes or dishes, for example.
  • Programmers of the type defined above are also known, for which the members to be supplied are divided into two groups.
  • the first group is supplied via relay switches controlled by an electronic circuit.
  • the second group is supplied via contacts actuated by a block of cams, in a similar manner to what has just been described.
  • Such a programmer is therefore partially adaptable, insofar as it makes it possible to electronically choose and vary the duration of the drum drive in one direction, then in the other, for example. In addition, this choice has no influence on the control of the solenoid valve, the pump, and the resistance.
  • Such a programmer is often called a hybrid programmer because it combines mechanically controlled contacts and electronically controlled relays. It partially solves the problems linked to the lack of adaptability of the programmer already described, which includes a single block of cams to control all of the members. However, the need to use relays increases the cost price of the programmer and reduces its reliability.
  • the present invention aims to overcome the above drawbacks by providing an at least partially adaptable programmer, with a moderate cost price, and reliable.
  • a programmer of the type defined above characterized in that: - said organs are divided into a first and a second group, - all the possible positions of said block are divided into a plurality of main ranges, each relating to the supply of a particular combination organs of said second group, at least one main range is divided into a plurality of elementary ranges, each relating to the supply of a particular combination of the members of said first group, and, - Said drive means are arranged to drive said block in both directions.
  • the drive means are capable of driving the cam block in both directions, it is possible, while remaining within this main range, to reach the various elementary ranges which it includes, in order to have the organs of the first group perform a certain number of tasks, independently of the organs of the second group.
  • the programmer of the invention does not use a relay, but, in their place, contacts actuated by cams of conventional type and whose low cost and reliability are known.
  • said main ranges each comprise a plurality of elementary ranges relating to the same sequence of particular combinations of the members of said first group.
  • any of the different particular combinations of the members of the first group can be obtained for a position of the block included within any of the main ranges.
  • sequence of particular combinations repeating from one main range to another makes it easy, by electronically controlling the amplitude of the movement of the drive means in one direction and in the other within each range main, to execute a specific program to the organs of the first block, this independently of the control of the organs of the second block.
  • said drive means comprise a two-way motor and an electronic circuit for controlling said motor.
  • means are provided for switching off at least part of said members during the movement of the corresponding cams.
  • said apparatus is a washing machine provided with a drum and means for driving said rotating drum
  • said first group comprises said means for driving the rotating drum
  • each of said main ranges is divided into at least two elementary ranges, one relating to the supply of said drum drive means in one direction, and the other relating to the supply of said drum drive means in the other direction.
  • the programmer of the invention is particularly useful in this case, since it allows great flexibility in programming the movements of the drum.
  • This machine comprises, in known manner, a plurality of electrical components which are supplied with electrical energy selectively and sequentially, by means of a programmer, so as to carry out a washing program.
  • the washing machine thus comprises a motor 11, of the universal type, for driving the drum in which the laundry is placed, a solenoid valve 21 a , a resistor 21 b for heating the water, a drain pump 21 i , and so on until the last organ, which bears the reference 21 n .
  • the universal motor 11 notably comprises terminals 110 and 111 for access to the rotor, and two terminals 112 and 113 for access to the inductor.
  • Terminal P is connected to a first movable contact of a double change-over switch 12, the four fixed contacts of which are linked in pairs, and the second of which movable contact is connected to the inductor terminal 112.
  • the inductor terminal 113 is connected to the terminal N by means, here, of a triac 15.
  • Each rotor terminal 110 and 111 is connected respectively to one of the pairs of fixed contacts connected together of the double reverser 12.
  • the members 21 a , 21 b , ..., 21 i , ... 21 n here all have one terminal connected directly to the terminal N, the other being connected to the terminal P by means of switches 22 a , 22 b , ..., 22 i , ..., 22 n , respectively.
  • the switches 22 a , 22 b , ..., 22 i , ..., 22 n are each provided with a fixed contact and a movable contact.
  • An electronic circuit 40 connected between terminals N and P, controls a motor 41, here a two-way synchronous motor, as well as the triac 15.
  • the output shaft 410 of the motor 41 drives cams, not shown in FIG. 1, which exert on the movable contacts of the double reverser 12 and of the switches 22 a , 22 b , ..., 22 i , .. ., 22 n of the forces shown diagrammatically by the arrows F.
  • the forces F act against restoring forces of the movable contacts to move them and supply, or not, the corresponding members.
  • Group 1 here includes only the universal motor 11 for driving the drum, but in another embodiment, it could obviously include other organs.
  • Group 2 here includes the organs 21 a , 21 b , ..., 21 i , ..., 21 n , called power organs.
  • the programmer of the invention comprises the electronic circuit 40, the motor 41, the double inverter 12 and the switches 22 a , 22 b , ..., 22 i , ..., 22 n of FIG. 1, as well as the cams which have been mentioned, and which will now be described with reference to FIG. 2.
  • cams are divided into two groups corresponding respectively to the groups of members 1 and 2 which have just been defined.
  • the first group here comprises two cams 10 a and 10 b which respectively actuate each of the movable contacts of the reverser 12, relating to the motor 11 of group 1.
  • the second group here comprises the cams 20 a , 20 b , ..., 20 i , ..., 20 n which respectively actuate the movable contacts of the switches 22 a , 22 b , ..., 22 i , ... , 22 n , relating to organs 21 a , 21 b , ..., 21 i , ..., 21 n of group 2.
  • Each movable contact is arranged on a lever, which cooperates with the profile of the corresponding cam.
  • each of the levers is subjected to the action of a force exerted for example by a spring, which recalls it against the profile of the corresponding cam, that is to say towards the axis 3.
  • each of the movable contacts of the inverter 12 On either side of each of the movable contacts of the inverter 12 are arranged the two corresponding fixed contacts.
  • the profile of each of the cams 10 a and 10 b respectively includes bosses 101 a and 101 b , and recesses 102 a and 102 b , separated by portions 100 a and 100 b of neutral profile.
  • each of the switches 22 a , 22 b , ..., 22 i , ..., 22 n are arranged next to the corresponding movable contacts, and the cams 20 a , 20 b , ..., 20 i , ..., 22 n have only neutral profile portions and bumps.
  • the neutral profile portions leave the corresponding switch open, while the bumps close it.
  • the profile of the cam 10 a successively comprises a recess 102 a , facing a bump 101 b of the cam 10 b , a neutral portion 100 a , facing a portion neutral 100 b , a bump 101 a facing a hollow 102 b , a neutral portion 100 a , facing a neutral portion 100 b , and so on.
  • PE g the position ranges of the group of cams 10 a and 10 b for which the levers of the reverser 12 are actuated by a bump 101 b and a recess 102 a
  • PE n those for which these levers are actuated by the neutral portions
  • PE d those for which these levers are actuated by a recess 102 b and a bump 101 a
  • PE g , PE d and PE n respectively correspond to the supply of the motor 11 so that it rotates in one direction, in the other, and so that it is stopped.
  • the set of possible ranges of positions of the group of cams 20 a , 20 b , ..., 20 i , ..., 20 n is divided into a plurality of main ranges, denoted PP, each relating , feeding a particular combination of organs 21 a , 21 b , ..., 21 i , ..., 21 n of the second group 2.
  • each main range PP corresponds to the supply of only one of the members of the second group 2.
  • the first main range PP shown comprises the bump of the cam 20 a , which s extends over the entire width of the main deck, the cams 20 b , ..., 20 i , ..., 20 n all having a profile neutral.
  • the second main area PP shown comprises the cam boss 20 b , which extends over the entire width of the main area, the cams 20 a , 20 c , ..., 20 i , ..., 20 n having all a neutral profile, and so on.
  • the amplitude of the main ranges PP is here equal to four times the amplitude of any of the elementary ranges such as PE g , PE d or PE n , and the relative position of the cams of the first and of the second group is such that each main area PP is divided into a plurality of elementary areas, comprising here the four areas of the sequence PE g , PE n , PE d , PE n .
  • the electronic circuit 40 first controls the triac 15 so that it remains open. The engine 11 is therefore stopped.
  • circuit 40 controls the motor 41 so that the block 120 is driven counterclockwise T, for example, until the hump of the cam 20 a actuates the switch 22 a to control the solenoid valve 21 has water intake.
  • circuit 40 is provided with a memory in which are stored the positions of the hollows and bumps of all the cams.
  • circuit 40 calculates at all times the positions of the block 120 from the displacements which it controls via the motor 41 and their initial positions, which were either memorized during the previous stop, or determined at the following an initialization procedure.
  • Such an initialization procedure comprises, for example, training in a determined direction until detection of particular positions by devices of known type, and not shown for the sake of simplicity.
  • the circuit 40 When the water intake has started, the circuit 40 continues to rotate the block 120 until it is in the position where the point marked F in FIG. 4 coincides with the end of the lever of the 'switch 22a, position beyond which this lever would stop being pushed. Then, it can command the reversal of the direction of rotation of the motor 41 so that the block 120 moves in the direction I, inverse of the trigonometric direction T, by an angle less than or equal to the amplitude of the main range PP, so as not to change anything at the water intake control.
  • the cams 10 a and 10 b of the block 1 can control the supply of the rotor of the motor 11 in one direction or in the 'other, or cut this supply while remaining on neutral profiles 100 a and 100 b .
  • the main range PP comprises the sequence of elementary ranges PE g , PE n , PE d , PE n .
  • the circuit 40 can therefore, by controlling on the one hand the triac 15 to regulate the speed of the motor 11, and on the other hand back and forth movements of the motor 41, control the rotation in one direction, then in the other , of the drum driven by the motor 11.
  • the duration of the rotation in one direction, that of the rotation in the other direction, and that of the bearing which separates them during which the drum remains stationary are variable by simple electronic control by playing on the direction and duration of each rotation of the motor 41.
  • the electronic circuit 40 is informed of this, for example by a level detector, not shown as known. It can control the triac 15 to stop the engine 11, and move the block 120, still in the direction T, for example, to bring the latter into the position where the point denoted F ′ coincides with the lever of the switch 22 b , position beyond which this lever would cease to be pushed by the cam 20b. The water intake is therefore stopped, and the heating of the water, by the resistance 21 a , takes place.
  • the triac 15 is then controlled and the block 1 is driven in the direction I over an angle less than the amplitude of the range PP, then in the direction T, and so on, so as to control the movements back and forth. of the drum.
  • the circuit 40 is program accordingly.
  • the washing program can thus run to the end with, as has been pointed out, great flexibility in controlling the movements for reversing the direction of rotation of the drum.
  • the programmer of the invention is a conventional programmer, by controlling the motor 41 so that it rotates at constant speed, fairly low, and always in the same direction.
  • the duration of each of the program stages is then linked to the length of each recess or bump and to the speed of the motor 41.
  • the cams 20 a , 20 b , ..., 20 i , ..., 20 n of the second group each comprise only one bump, distributed for that this group comprises a plurality of main areas, inside each of which a single member 21 a , 21 b , ..., 21 i , ..., 21 n is supplied, in principle.
  • the mechanical structure of the block 120 is simple, and the programs are stored in the electronic circuit 40. The latter controls the block 120 not to advance by one program step each time, without being concerned with the 'organ which is going to be thus started, but to go to start a specific organ, to be controlled during this program step.
  • the block 120 is always controlled in the same direction, and that one can choose the direction of movement of the block 120 which minimizes the duration of each of the movements to be performed.
  • Block 120 could however, as in the programmers of the prior art, be divided into a plurality of angular sectors each corresponding to a different program, the choice of one of these programs being made by moving the block 120 to bring the start of the corresponding sector opposite the line of contacts between the cams and the levers, and the progress of this program being obtained by then sweeping this sector by the block 120.
  • c is the block 120 which stores, at least in part, the washing programs.
  • the block 120 when the block 120 is driven quickly enough to go towards the beginning of a determined program, if it is of the "memory" type, where to go to control a determined organ, s' it is of the "without memory” type, it passes through a certain number of intermediate positions, which has the effect of briefly supplying certain organs.
  • this phenomenon can be tolerated. In others it is considered annoying, because it is the source of parasitic noise, and because it risks damaging the organs thus energized for too short a period of time.
  • Figure 5 shows a variant of the machine of Figure 1, for which there is provided a relay 25, controlled by the circuit 40 to switch off the organs 21 a , 21 b , ..., 21 i , ... , 21 n during movement of the block 2.
  • the relay 25 is arranged in a common connection connecting the members 21 a , 21 b , ..., 21 i , ..., 21 n to the terminal N. It is not no need here to provide a relay for the motor 11, the triac 15 making it possible to open the connection if necessary.
  • the relay 25 is therefore controlled by the circuit 40 before any movement of the block 120 likely to cause the phenomenon described.
  • the electronic circuit 40 is, for example, a microprocessor circuit.
  • the design of such a circuit from the description which has been made of the functions which it must perform, is obvious to a person skilled in the art.
  • the cams of the first group relate to the reversal of the direction of rotation of the drum motor, while that of the second group relate to the control of the other members of the machine. If such a distribution is interesting, as we have seen, in the case of a washing machine, it is not, even in this case, mandatory and the skilled person is able to choose the which distribution is the most interesting, taking into account the specific problem to be solved.
  • each of these elementary ranges relates to the supply of a particular combination of these organs.
  • special combination is meant the connections of the double inverter 12 which make it possible to rotate the motor 11 in one direction, in the other, or to stop it.
  • all the possible particular combinations of the organs of the first group 1 be provided in the sequence of elementary ranges contained in each main range.
  • the sequence of elementary ranges could simply be PE g , PE n , PE d , or even PE g , PE d .
  • the main ranges PP each comprise the same sequence of particular combinations of the organs of the first group 1 makes it possible to retain all the possibilities of controlling the organs of the first group 1, whatever the main range in which the block is located 120. This therefore gives great flexibility in the use of the programmer. However, there may be situations where this possibility is not essential, and where one can benefit from the adaptability of the programmer of the invention insofar as it allows, in certain main ranges only, certain possibilities of controlling the organs of the first group 1. However, such an advantage can be obtained as soon as at least one main area is divided into a plurality of elementary areas and there is provision for driving the block 120 in both directions .
  • the programmer is not limited to controlling a plurality of organs assembled within the same device, and can be used in the case of an industrial system comprising a plurality of disseminated organs.

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Abstract

An appliance, or a system, is provided with a plurality of electrical members (11, 21a - 21n) to be selectively and sequentially powered in accordance with a specified program. The programmer comprises a cam block interacting with a plurality of power contacts (12, 22a - 22n) for the members. The members are distributed into a first (1) and a second (2) group. The set of possible positions of the block is divided into a plurality of main areas, each relating to a particular combination of the members of the second group. Each main area is divided into a plurality of elementary areas, each relating to a particular combination of the members of the first group. Means (40 - 41) are provided for driving the block in both directions, in order to be able to change the combination of powered members of the first group (1) without in any way changing the combination of the powered members of the second group (2). The programmer is applicable in particular in the electrodomestic field. <IMAGE>

Description

La présente invention a pour objet un programmateur pour appareil, ou système, pourvu d'une pluralité d'organes électriques à alimenter sélectivement et séquentiellement, programmateur comprenant un bloc de cames coopérant avec une pluralité de contacts d'alimentation desdits organes, et des moyens d'entraînement dudit bloc en déplacement.The subject of the present invention is a programmer for an apparatus, or system, provided with a plurality of electrical members to be fed selectively and sequentially, a programmer comprising a block of cams cooperating with a plurality of contacts for supplying said members, and means of driving said block in displacement.

Un tel programmateur est utilisé en particulier dans le domaine électroménager, pour des appareils comme les machines à laver le linge ou la vaisselle par exemple.Such a programmer is used in particular in the household appliance field, for devices such as washing machines for washing clothes or dishes, for example.

On connaît déjà des programmateurs du type défini ci-des-­sus, dans lesquels les moyens d'entraînement entraînent le bloc dans un sens donné. Dans ce type de programmateur, le déroulement du ou des programmes dépend de la façon dont se succèdent, à la périphérie des cames, les bosses d'actionnement des différents contacts. Pour modifier ce déroulement, il faut modifier les profils de cames. En pratique, chaque exemplaire d'un tel programmateur n'est donc, après fabrication, plus adaptable. En effet, le programme, ou l'ensemble de programmes, qu'il est suscep­tible de faire se dérouler est figé et non modifiable.Programmers of the type defined above are already known, in which the drive means drive the block in a given direction. In this type of programmer, the progress of the program or programs depends on the way in which, at the periphery of the cams, the actuation bumps of the various contacts. To modify this sequence, the cam profiles must be modified. In practice, each copy of such a programmer is therefore no longer adaptable after manufacture. Indeed, the program, or the set of programs, which it is likely to run is frozen and cannot be modified.

On connaît aussi des programmateurs du type défini ci-­dessus, pour lesquels les organes à alimenter sont répar­tis en deux groupes. Le premier groupe est alimenté par l'intermédiaire de commutateurs à relais commandés par un circuit électronique. Le second groupe est alimenté par l'intermédiaire de contacts actionnés par un bloc de cames, de façon similaire à ce qui vient d'être décrit.Programmers of the type defined above are also known, for which the members to be supplied are divided into two groups. The first group is supplied via relay switches controlled by an electronic circuit. The second group is supplied via contacts actuated by a block of cams, in a similar manner to what has just been described.

Par exemple, dans le cas d'une machine à laver le linge, on prévoit d'alimenter le moteur d'entrainement du tam­bour par l'intermédiaire de relais commandés électroni­quement, tandis que d'autres organes comme, par exemple, l'électrovanne d'admission d'eau, la pompe de vidange, et la résistance de chauffage de l'eau, sont alimentés par l'intermédiaire de contacts actionnés par un bloc de cames entraîné par un moteur.For example, in the case of a washing machine, provision is made to power the drum drive motor by means of electronically controlled relays, while other members such as, for example, the water intake solenoid valve, the drain pump, and the water heating resistor are supplied via contacts actuated by a cam block driven by a motor.

Un tel programmateur est donc partiellement adaptable, dans la mesure où il permet de choisir et de faire varier électroniquement la durée d'entraînement du tambour dans un sens, puis dans l'autre, par exemple. De plus, ce choix reste sans influence sur la commande de l'électro­vanne, de la pompe, et de la résistance.Such a programmer is therefore partially adaptable, insofar as it makes it possible to electronically choose and vary the duration of the drum drive in one direction, then in the other, for example. In addition, this choice has no influence on the control of the solenoid valve, the pump, and the resistance.

Un tel programmateur est souvent appelé programmateur hybride, car il combine des contacts commandés mécanique­ment et des relais commandés électroniquement. Il permet de résoudre en partie les problèmes liés au manque d'adap­tabilité du programmateur déjà décrit qui comporte un unique bloc de cames pour commander la totalité des orga­nes. Toutefois, la nécessité d'utiliser des relais augmente le prix de revient du programmateur et en dimi­nue la fiabilité.Such a programmer is often called a hybrid programmer because it combines mechanically controlled contacts and electronically controlled relays. It partially solves the problems linked to the lack of adaptability of the programmer already described, which includes a single block of cams to control all of the members. However, the need to use relays increases the cost price of the programmer and reduces its reliability.

La présente invention vise à pallier les inconvénients précédents en procurant un programmateur au moins par­tiellement adaptable, d'un prix de revient modéré, et fiable.The present invention aims to overcome the above drawbacks by providing an at least partially adaptable programmer, with a moderate cost price, and reliable.

A cet effet, elle a pour objet un programmateur du type défini ci-dessus, caractérisé par le fait que :
- lesdits organes sont répartis en un premier et un second groupe,
- l'ensemble des positions possibles dudit bloc est divi­sé en une pluralité de plages principales relatives, chacune, à l'alimentation d'une combinaison particulière des organes dudit second groupe,
- au moins une plage principale est divisée en une plu­ralité de plages élémentaires relatives, chacune, à l'alimentation d'une combinaison particulière des organes dudit premier groupe, et,
- lesdits moyens d'entraînement sont agencés pour entraî­ner ledit bloc dans les deux sens.To this end, it relates to a programmer of the type defined above, characterized in that:
- said organs are divided into a first and a second group,
- all the possible positions of said block are divided into a plurality of main ranges, each relating to the supply of a particular combination organs of said second group,
at least one main range is divided into a plurality of elementary ranges, each relating to the supply of a particular combination of the members of said first group, and,
- Said drive means are arranged to drive said block in both directions.

Avec le programmateur de l'invention, tant que le bloc de cames reste à l'intérieur d'une même plage principale, la combinaison particulière des organes du second groupe qui se trouvent alimentés reste la même. Cependant, du fait que les moyens d'entraînement sont susceptibles d'entraîner le bloc de cames dans les deux sens, il est possible, tout en restant à l'intérieur de cette plage principale, d'atteindre les diverses plages élémentaires qu'elle comprend, pour faire exécuter aux organes du premier groupe un certain nombre de tâches, indépendam­ment des organes du second groupe. Or, il est facile et connu de commander électroniquement les moyens d'entraî­nement pour obtenir des déplacements du bloc de sens et d'amplitude déterminés.With the programmer of the invention, as long as the cam block remains within the same main range, the particular combination of the organs of the second group which are supplied remains the same. However, since the drive means are capable of driving the cam block in both directions, it is possible, while remaining within this main range, to reach the various elementary ranges which it includes, in order to have the organs of the first group perform a certain number of tasks, independently of the organs of the second group. However, it is easy and known to electronically control the drive means to obtain displacements of the block of determined direction and amplitude.

Il apparaît donc que le programmateur de l'invention offre des possibilités d'adaptation comparables à celles des programmateurs connus de type "hybride".It therefore appears that the programmer of the invention offers adaptation possibilities comparable to those of known programmers of the "hybrid" type.

Toutefois, le programmateur de l'invention n'utilise pas de relais, mais, à leur place, des contacts actionnés par des cames de type conventionnel et dont le faible coût et la fiabilité sont connues.However, the programmer of the invention does not use a relay, but, in their place, contacts actuated by cams of conventional type and whose low cost and reliability are known.

Avec le programmateur de l'invention, on obtient un ré­sultat comparable à celui que l'on obtiendrait avec deux blocs de cames indépendants, commandés par des moyens d'entraînement indépendants, c'est-à-dire en pratique chacun par un moteur indépendant par exemple. Il est remarquable que, dans le programmateur de l'invention, ce résultat soit atteint avec un unique moteur, par exemple, ce qui réduit notablement le coût de fabrication. Ceci provient de l'agencement des plages principales et des plages auxiliaires, associé à l'entraînement dans les deux sens, permettant la commande des organes du premier groupe sans modifier celle des organes du deuxième groupe tant que l'on reste à l'intérieur d'une même plage principale.With the programmer of the invention, a result comparable to that which would be obtained with two blocks of independent cams, controlled by means, is obtained. independent drive, that is to say in practice each by an independent motor for example. It is remarkable that, in the programmer of the invention, this result is achieved with a single motor, for example, which significantly reduces the manufacturing cost. This comes from the arrangement of the main tracks and the auxiliary tracks, associated with the drive in both directions, allowing the control of the organs of the first group without modifying that of the organs of the second group as long as one stays inside. from the same main beach.

Avantageusement, lesdites plages principales comprennent chacune une pluralité de plages élémentaires relatives à la même séquence de combinaisons particulières des organes dudit premier groupe.Advantageously, said main ranges each comprise a plurality of elementary ranges relating to the same sequence of particular combinations of the members of said first group.

Dans ce cas, n'importe laquelle des différentes combinai­sons particulières des organes du premier groupe peut être obtenue pour une position du bloc comprise à l'inté­rieur de n'importe laquelle des plages principales. Et la séquence de combinaisons particulières se répétant d'une plage principale à l'autre, il est facile, en commandant électroniquement l'amplitude du déplacement des moyens d'entraînement dans un sens et dans l'autre à l'intérieur de chaque plage principale, de faire exécuter un program­me déterminé aux organes du premier bloc, ceci indépen­damment de la commande des organes du second bloc.In this case, any of the different particular combinations of the members of the first group can be obtained for a position of the block included within any of the main ranges. And the sequence of particular combinations repeating from one main range to another makes it easy, by electronically controlling the amplitude of the movement of the drive means in one direction and in the other within each range main, to execute a specific program to the organs of the first block, this independently of the control of the organs of the second block.

Avantageusement, lesdits moyens d'entraînement compren­nent un moteur à double sens et un circuit électronique de commande dudit moteur.Advantageously, said drive means comprise a two-way motor and an electronic circuit for controlling said motor.

On obtient ainsi une réalisation particulièrement simple et fiable.A particularly simple and reliable embodiment is thus obtained.

Avantageusement encore, il est prévu des moyens pour mettre hors circuit au moins une partie desdits organes pendant le déplacement des cames correspondantes.Advantageously also, means are provided for switching off at least part of said members during the movement of the corresponding cams.

On évite ainsi la mise sous tension intempestive, à l'origine de bruits et de dommages, des organes en question.This avoids inadvertent energization, causing noise and damage, the organs in question.

Avantageusement encore, ledit appareil est une machine à laver le linge pourvue d'un tambour et de moyens d'en­traînement dudit tambour en rotation, ledit premier groupe comprend lesdits moyens d'entraînement du tambour en rota­tion, et chacune desdites plages principales est divisée en au moins deux plages élémentaires, l'une relative à l'alimentation desdits moyens d'entraînement du tambour dans un sens, et l'autre relative à l'alimentation des­dits moyens d'entraînement du tambour dans l'autre sens.Advantageously still, said apparatus is a washing machine provided with a drum and means for driving said rotating drum, said first group comprises said means for driving the rotating drum, and each of said main ranges is divided into at least two elementary ranges, one relating to the supply of said drum drive means in one direction, and the other relating to the supply of said drum drive means in the other direction.

Le programmateur de l'invention s'avère particulièrement utile dans ce cas, puisqu'il permet une grande souplesse dans la programmation des mouvements du tambour.The programmer of the invention is particularly useful in this case, since it allows great flexibility in programming the movements of the drum.

La présente invention sera mieux comprise grâce à la description de la forme de réalisation préférée du pro­grammateur de l'invention, faite en se référant aux dessins annexés, sur lesquels :

  • - la figure 1 représente un schéma électrique d'un appa­reil électroménager utilisant le programmateur de l'in­vention,
  • - la figure 2 représente une vue en perspective, simpli­fiée, du programmateur utilisé dans l'appareil de la figure 1,
  • - la figure 3 représente une vue de face, simplifiée, d'un groupe de cames du bloc de cames du programmateur de la figure 2,
  • - la figure 4 représente une vue de face, simplifiée, d'un autre groupe de cames du bloc de cames du programma­teur de la figure 2, et,
  • - la figure 5 représente une vue d'une variante de l'ap­pareil de la figure 1.
The present invention will be better understood thanks to the description of the preferred embodiment of the programmer of the invention, made with reference to the appended drawings, in which:
  • FIG. 1 represents an electrical diagram of a household appliance using the programmer of the invention,
  • FIG. 2 represents a simplified perspective view of the programmer used in the device of FIG. 1,
  • FIG. 3 represents a simplified front view, of a group of cams in the cam block of the programmer in FIG. 2,
  • FIG. 4 represents a simplified front view of another group of cams of the cam block of the programmer of FIG. 2, and,
  • - Figure 5 shows a view of a variant of the apparatus of Figure 1.

Une machine à laver le linge utilisant le programmateur de l'invention est maintenant décrite.A washing machine using the programmer of the invention is now described.

Cette machine comprend, de façon connue, une pluralité d'organes électriques qui sont alimentés en énergie électrique sélectivement et séquentiellement, par l'in­termédiaire d'un programmateur, de façon à réaliser un programme de lavage.This machine comprises, in known manner, a plurality of electrical components which are supplied with electrical energy selectively and sequentially, by means of a programmer, so as to carry out a washing program.

En se référant à la fig. 1, la machine à laver comprend ainsi un moteur 11, de type universel, pour entraîner le tambour dans lequel est disposé le linge, une électro­vanne 21a, une résistance 21b de chauffage de l'eau, une pompe de vidange 21i, et ainsi de suite jusqu'au dernier organe, qui porte la référence 21n.Referring to fig. 1, the washing machine thus comprises a motor 11, of the universal type, for driving the drum in which the laundry is placed, a solenoid valve 21 a , a resistor 21 b for heating the water, a drain pump 21 i , and so on until the last organ, which bears the reference 21 n .

L'énergie électrique est disponible entre une borne neu­tre N et une borne de phase P d'une source de tension alternative non représentée dans un souci de simplicité.Electrical energy is available between a neutral terminal N and a phase terminal P of an alternating voltage source not shown for the sake of simplicity.

Le moteur universel 11 comprend notamment des bornes 110 et 111 d'accès au rotor, et deux bornes 112 et 113 d'accès à l'inducteur. La borne P est reliée à un premier contact mobile d'un inverseur double 12, dont les quatre contacts fixes sont reliés deux à deux, et dont le deuxième contact mobile est relié à la borne d'inducteur 112. La borne d'inducteur 113 est reliée à la borne N par l'in­termédiaire, ici, d'un triac 15. Chaque borne de rotor 110 et 111 est reliée respectivement à une des paires de contacts fixes reliés entre eux de l'inverseur double 12. Ainsi le sens de branchement du rotor du moteur 11, relativement au sens de branchement de son inducteur, est commandé par les contacts mobiles de l'inverseur 12, afin de commander le sens de rotation du moteur 11.The universal motor 11 notably comprises terminals 110 and 111 for access to the rotor, and two terminals 112 and 113 for access to the inductor. Terminal P is connected to a first movable contact of a double change-over switch 12, the four fixed contacts of which are linked in pairs, and the second of which movable contact is connected to the inductor terminal 112. The inductor terminal 113 is connected to the terminal N by means, here, of a triac 15. Each rotor terminal 110 and 111 is connected respectively to one of the pairs of fixed contacts connected together of the double reverser 12. Thus the direction of connection of the motor rotor 11, relative to the direction of connection of its inductor, is controlled by the movable contacts of the reverser 12, in order to control the direction of motor rotation 11.

Les organes 21a, 21b, ..., 21i,... 21n ont ici tous une borne reliée directement à la borne N, l'autre étant re­liée à la borne P par l'intermédiaire d'interrupteurs 22a, 22b,..., 22i,..., 22n, respectivement. Les interrup­teurs 22a, 22b,..., 22i,..., 22n sont pourvus chacun d'un contact fixe et d'un contact mobile.The members 21 a , 21 b , ..., 21 i , ... 21 n here all have one terminal connected directly to the terminal N, the other being connected to the terminal P by means of switches 22 a , 22 b , ..., 22 i , ..., 22 n , respectively. The switches 22 a , 22 b , ..., 22 i , ..., 22 n are each provided with a fixed contact and a movable contact.

Un circuit électronique 40, branché entre les bornes N et P, commande un moteur 41, ici un moteur synchrone à double sens, ainsi que le triac 15.An electronic circuit 40, connected between terminals N and P, controls a motor 41, here a two-way synchronous motor, as well as the triac 15.

L'arbre de sortie 410 du moteur 41 entraîne des cames, non représentées sur la figure 1, qui exercent sur les contacts mobiles de l'inverseur double 12 et des inter­rupteurs 22a, 22b,..., 22i,..., 22n des forces schémati­sées par les flèches F. Les forces F agissent contre des forces de rappel des contacts mobiles pour les déplacer et alimenter, ou non, les organes correspondants.The output shaft 410 of the motor 41 drives cams, not shown in FIG. 1, which exert on the movable contacts of the double reverser 12 and of the switches 22 a , 22 b , ..., 22 i , .. ., 22 n of the forces shown diagrammatically by the arrows F. The forces F act against restoring forces of the movable contacts to move them and supply, or not, the corresponding members.

Pour des raisons qui seront mieux comprises par la suite, on considère que les différents organes 11, 21a, 21b,..., 21i,..., 21n sont répartis en deux groupes, référenciés 1 et 2 sur la figure 1. Le groupe 1 comprend ici uniquement le moteur universel 11 d'entraînement du tambour, mais dans une autre forme de réalisation, il pourrait évidemment comprendre d'autres organes. Le groupe 2 comprend ici les organes 21a, 21b,..., 21i, ..., 21n, dits organes de puissance.For reasons which will be better understood later, it is considered that the various organs 11, 21 a , 21 b , ..., 21 i , ..., 21 n are divided into two groups, referenced 1 and 2 on the Figure 1. Group 1 here includes only the universal motor 11 for driving the drum, but in another embodiment, it could obviously include other organs. Group 2 here includes the organs 21 a , 21 b , ..., 21 i , ..., 21 n , called power organs.

Le programmateur de l'invention comprend le circuit électronique 40, le moteur 41, l'inverseur double 12 et les interrupteurs 22a, 22b,..., 22i,..., 22n de la fi­gure 1, ainsi que les cames dont il a été question, et qui vont maintenant être décrites en référence à la figure 2.The programmer of the invention comprises the electronic circuit 40, the motor 41, the double inverter 12 and the switches 22 a , 22 b , ..., 22 i , ..., 22 n of FIG. 1, as well as the cams which have been mentioned, and which will now be described with reference to FIG. 2.

Il apparaît, sur cette figure, que ces cames, circulai­res, appartiennent toutes à un unique bloc 120, mobile en rotation autour d'un axe 3. Le bloc 120 est entraîné par le moteur 41, par l'intermédiaire d'un réducteur 42.It appears, in this figure, that these circular cams all belong to a single block 120, movable in rotation about an axis 3. The block 120 is driven by the motor 41, by means of a reduction gear 42 .

Il est utile de considérer que ces cames sont réparties en deux groupes correspondant respectivement aux groupes d'organes 1 et 2 qui viennent d'être définis.It is useful to consider that these cams are divided into two groups corresponding respectively to the groups of members 1 and 2 which have just been defined.

Ainsi, le premier groupe comprend ici deux cames 10a et 10b qui actionnent respectivement chacun des contacts mobiles de l'inverseur 12, relatif au moteur 11 du groupe 1.Thus, the first group here comprises two cams 10 a and 10 b which respectively actuate each of the movable contacts of the reverser 12, relating to the motor 11 of group 1.

Le deuxième groupe comprend ici les cames 20a, 20b,..., 20i,..., 20n qui actionnent respectivement les contacts mobiles des interrupteurs 22a, 22b,..., 22i,..., 22n, relatifs aux organes 21a, 21b,..., 21i,..., 21n du groupe 2.The second group here comprises the cams 20 a , 20 b , ..., 20 i , ..., 20 n which respectively actuate the movable contacts of the switches 22 a , 22 b , ..., 22 i , ... , 22 n , relating to organs 21 a , 21 b , ..., 21 i , ..., 21 n of group 2.

Chaque contact mobile est disposé sur un levier, qui coopère avec le profil de la came correspondante. A cet effet, et de façon connue, chacun des leviers est soumis à l'action d'une force exercée par exemple par un ressort, qui le rappelle contre le profil de la came correspon­dante, c'est-à-dire vers l'axe 3.Each movable contact is arranged on a lever, which cooperates with the profile of the corresponding cam. To this end, and in a known manner, each of the levers is subjected to the action of a force exerted for example by a spring, which recalls it against the profile of the corresponding cam, that is to say towards the axis 3.

De part et d'autre de chacun des contacts mobiles de l'inverseur 12 sont disposés les deux contacts fixes correspondants. Comme le montre la figure 3, le profil de chacune des cames 10a et 10b comprend respectivement des bosses 101a et 101b, et des creux 102a et 102b, séparés par des portions 100a et 100b de profil neutre.On either side of each of the movable contacts of the inverter 12 are arranged the two corresponding fixed contacts. As shown in Figure 3, the profile of each of the cams 10 a and 10 b respectively includes bosses 101 a and 101 b , and recesses 102 a and 102 b , separated by portions 100 a and 100 b of neutral profile.

Lorsque un des leviers supportant un des contacts mobiles de l'inverseur 12 est sur une portion 100 de profil neutre, le contact mobile correspondant est isolé. Lors­qu'il est sur une bosse 101, le contact mobile touche le contact fixe le plus éloigné de l'axe 3, et lorsque le levier est sur un creux 102, le contact mobile touche le contact fixe le plus proche de l'axe 3.When one of the levers supporting one of the movable contacts of the reverser 12 is on a portion 100 of neutral profile, the corresponding movable contact is isolated. When it is on a bump 101, the movable contact touches the fixed contact furthest from the axis 3, and when the lever is on a recess 102, the movable contact touches the fixed contact closest to the axis 3 .

Les contacts fixes de chacun des interrupteurs 22a, 22b, ..., 22i,..., 22n sont disposés à côté des contacts mobiles correspondants, et les cames 20a, 20b,..., 20i, ..., 22n comportent seulement des portions de profil neutre et des bosses. Les portions de profil neutre lais­sent l'interrupteur correspondant ouvert, tandis que les bosses le ferment.The fixed contacts of each of the switches 22 a , 22 b , ..., 22 i , ..., 22 n are arranged next to the corresponding movable contacts, and the cams 20 a , 20 b , ..., 20 i , ..., 22 n have only neutral profile portions and bumps. The neutral profile portions leave the corresponding switch open, while the bumps close it.

Ici, et comme le montre la figure 2, les points de contact entre les leviers et les cames sont alignés sur une droite parallèle à l'axe 3.Here, and as shown in Figure 2, the contact points between the levers and the cams are aligned on a straight line parallel to axis 3.

Il en résulte notamment, compte tenu de la fonction de l'inverseur double 12, et comme le montre la figure 3, que le profil de la came 10a comprend successivement un creux 102a, faisant face à une bosse 101b de la came 10b, une portion neutre 100a, faisant face à une portion neutre 100b, une bosse 101a faisant face à un creux 102b, une portion neutre 100a, faisant face à une portion neutre 100b, et ainsi de suite. Ainsi est assurée une inversion du sens du branchement du rotor du moteur 11, ici avec un passage systématique par une position neutre.This results in particular, taking into account the function of the double reverser 12, and as shown in FIG. 3, that the profile of the cam 10 a successively comprises a recess 102 a , facing a bump 101 b of the cam 10 b , a neutral portion 100 a , facing a portion neutral 100 b , a bump 101 a facing a hollow 102 b , a neutral portion 100 a , facing a neutral portion 100 b , and so on. Thus is ensured a reversal of the direction of connection of the rotor of the motor 11, here with a systematic passage through a neutral position.

Sur la figure 3, les plages de positions du groupe des cames 10a et 10b pour lesquelles les leviers de l'inver­seur 12 sont actionnés par une bosse 101b et un creux 102a sont notées PEg, celles pour lesquelles ces leviers sont actionnés par les portions neutres sont notées PEn, et celles pour lesquelles ces leviers sont actionnés par un creux 102b et une bosse 101a sont notées PEd. Ces plages PEg, PEd et PEn correspondent respectivement à l'alimentation du moteur 11 pour qu'il tourne dans un sens, dans l'autre, et pour qu'il soit arrêté. Ces plages PEg, PEd et PEn sont appelées plages élémentaires, pour des raisons qui seront mieux comprises dans la suite. Ici, le profil des cames 10a et 10b est tel que la séquen­ce PEg, PEn, PEd, PEn se répète, de façon périodique, sur un tour des cames 10a et 10b.In FIG. 3, the position ranges of the group of cams 10 a and 10 b for which the levers of the reverser 12 are actuated by a bump 101 b and a recess 102 a are denoted PE g , those for which these levers are actuated by the neutral portions are denoted PE n , and those for which these levers are actuated by a recess 102 b and a bump 101 a are denoted PE d . These ranges PE g , PE d and PE n respectively correspond to the supply of the motor 11 so that it rotates in one direction, in the other, and so that it is stopped. These ranges PE g , PE d and PE n are called elementary ranges, for reasons which will be better understood below. Here, the profile of the cams 10 a and 10 b is such that the sequence PE g , PE n , PE d , PE n is repeated periodically over one revolution of the cams 10 a and 10 b .

Sur la figure 4, l'ensemble des plages de positions pos­sibles du groupe des cames 20a, 20b,..., 20i,..., 20n est divisé en une pluralité de plages principales, notées PP, relatives chacune, à l'alimentation d'une combinai­son particulière des organes 21a, 21b,..., 21i,..., 21n du second groupe 2.In FIG. 4, the set of possible ranges of positions of the group of cams 20 a , 20 b , ..., 20 i , ..., 20 n is divided into a plurality of main ranges, denoted PP, each relating , feeding a particular combination of organs 21 a , 21 b , ..., 21 i , ..., 21 n of the second group 2.

Ici, et dans un souci de simplicité, chaque plage princi­pale PP correspond à l'alimentation d'un seul des organes du second groupe 2. Par exemple, la première plage prin­cipale PP représentée comprend la bosse de la came 20a, qui s'étend sur toute la largeur de la plage principale, les cames 20b,..., 20i,..., 20n ayant toutes un profil neutre. La deuxième plage principale PP représentée comprend la bosse de la came 20b, qui s'étend sur toute la largeur de la plage principale, les cames 20a, 20c, ..., 20i,..., 20n ayant toutes un profil neutre, et ainsi de suite.Here, and for the sake of simplicity, each main range PP corresponds to the supply of only one of the members of the second group 2. For example, the first main range PP shown comprises the bump of the cam 20 a , which s extends over the entire width of the main deck, the cams 20 b , ..., 20 i , ..., 20 n all having a profile neutral. The second main area PP shown comprises the cam boss 20 b , which extends over the entire width of the main area, the cams 20 a , 20 c , ..., 20 i , ..., 20 n having all a neutral profile, and so on.

Comme le montre la figure 4, l'amplitude des plages principales PP est ici égale à quatre fois l'amplitude d'une quelconque des plages élémentaires comme PEg, PEd ou PEn, et la position relative des cames du premier et du second groupe est telle que chaque plage principale PP se trouve divisée en une pluralité de plages élémen­taires, comprenant ici les quatre plages de la séquence PEg, PEn, PEd, PEn.As shown in FIG. 4, the amplitude of the main ranges PP is here equal to four times the amplitude of any of the elementary ranges such as PE g , PE d or PE n , and the relative position of the cams of the first and of the second group is such that each main area PP is divided into a plurality of elementary areas, comprising here the four areas of the sequence PE g , PE n , PE d , PE n .

Le programmateur qui vient d'être décrit fonctionne comme suit.The programmer which has just been described operates as follows.

On suppose par exemple que l'on veut exécuter un program­me de lavage très simple, qui comprend le remplissage en eau de la machine, le chauffage de l'eau, et la vidange de la machine, ces trois phases étant accompagnées de mouvements de rotation dans un sens, et dans l'autre, du tambour de la machine.Suppose for example that you want to execute a very simple washing program, which includes filling the machine with water, heating the water, and emptying the machine, these three phases being accompanied by rotational movements in one direction and in the other, of the drum of the machine.

Le circuit électronique 40 commande d'abord le triac 15 de façon à ce que celui-ci reste ouvert. Le moteur 11 est donc à l'arrêt.The electronic circuit 40 first controls the triac 15 so that it remains open. The engine 11 is therefore stopped.

Le circuit électronique 40 commande alors le moteur 41 de façon à ce que le bloc 120 se trouve entraîné dans le sens trigonométrique T, par exemple, jusqu'à ce que la bosse de la came 20a actionne l'interrupteur 22a pour commander l'électrovanne 21a d'admission d'eau. Naturel­lement, le circuit 40 est pourvu d'une mémoire dans laquelle sont stockées les positions des creux et des bosses de toutes les cames. De plus, il calcule à tout moment les positions du bloc 120 à partir des déplace­ments qu'il commande par l'intermédiaire du moteur 41 et de leurs positions initiales, qui ont été soit mémori­sées lors de l'arrêt précédent, soit déterminées à la suite d'une procédure d'initialisation. Une telle procé­dure d'initialisation comprend,par exemple, un entraîne­ment dans un sens déterminé jusqu'à détection de positions particulières par des dispositifs de type connu, et non représentés dans un souci de simplicité.The electronic circuit 40 then controls the motor 41 so that the block 120 is driven counterclockwise T, for example, until the hump of the cam 20 a actuates the switch 22 a to control the solenoid valve 21 has water intake. Naturally, circuit 40 is provided with a memory in which are stored the positions of the hollows and bumps of all the cams. In addition, it calculates at all times the positions of the block 120 from the displacements which it controls via the motor 41 and their initial positions, which were either memorized during the previous stop, or determined at the following an initialization procedure. Such an initialization procedure comprises, for example, training in a determined direction until detection of particular positions by devices of known type, and not shown for the sake of simplicity.

Lorsque l'admission d'eau a commencé, le circuit 40 conti­nue à faire tourner le bloc 120 jusqu'à ce qu'il se trouve dans la position où le point noté F sur la figure 4 coïn­cide avec l'extrémité du levier de l'interrupteur 22a, po­sition au-delà de laquelle ce levier cesserait d'être pous­sé. Alors, il peut commander l'inversion du sens de rotation du moteur 41 afin que le bloc 120 se déplace dans le sens I, inverse du sens trigonométrique T, d'un angle inférieur ou égal à l'amplitude de la plage principale PP, de façon à ne rien changer à la commande de l'admission d'eau.When the water intake has started, the circuit 40 continues to rotate the block 120 until it is in the position where the point marked F in FIG. 4 coincides with the end of the lever of the 'switch 22a, position beyond which this lever would stop being pushed. Then, it can command the reversal of the direction of rotation of the motor 41 so that the block 120 moves in the direction I, inverse of the trigonometric direction T, by an angle less than or equal to the amplitude of the main range PP, so as not to change anything at the water intake control.

Il est évident que, en restant à l'intérieur du débatte­ment permis par l'amplitude de la plage principale PP, les cames 10a et 10b du bloc 1 peuvent commander l'ali­mentation du rotor du moteur 11 dans un sens ou dans l'autre, ou couper cette alimentation en restant sur les profils neutres 100a et 100b. Ceci est rendu possible ici du fait que la plage principale PP comprend la sé­quence de plages élémentaires PEg, PEn, PEd, PEn. Le circuit 40 peut donc, en commandant d'une part le triac 15 pour régler la vitesse du moteur 11, et d'autre part des mouvements de va et vient du moteur 41, commander la rotation dans un sens, puis dans l'autre, du tambour entraîné par le moteur 11. Naturellement, la durée de la rotation dans un sens, celle de la rotation dans l'autre sens, et celle du palier qui les sépare au cours duquel le tambour reste immobile sont variables par simple com­mande électronique en jouant sur le sens et la durée de chaque mise en rotation du moteur 41.It is obvious that, by remaining within the clearance allowed by the amplitude of the main range PP, the cams 10 a and 10 b of the block 1 can control the supply of the rotor of the motor 11 in one direction or in the 'other, or cut this supply while remaining on neutral profiles 100 a and 100 b . This is made possible here because the main range PP comprises the sequence of elementary ranges PE g , PE n , PE d , PE n . The circuit 40 can therefore, by controlling on the one hand the triac 15 to regulate the speed of the motor 11, and on the other hand back and forth movements of the motor 41, control the rotation in one direction, then in the other , of the drum driven by the motor 11. Naturally, the duration of the rotation in one direction, that of the rotation in the other direction, and that of the bearing which separates them during which the drum remains stationary are variable by simple electronic control by playing on the direction and duration of each rotation of the motor 41.

Dès que la cuve est remplie, le circuit électronique 40 en est averti par exemple par un détecteur de niveau non représenté car connu. Il peut commander le triac 15 pour arrêter le moteur 11, et déplacer le bloc 120, toujours dans le sens T, par exemple, pour amener celui-ci dans la position où le point noté F′ coïncide avec le levier de l'interrupteur 22b, position au-delà de laquelle ce levier cesserait d'être poussé par la came 20b. L'admission d'eau est donc arrêtée, et le chauffage de l'eau, par la résis­tance 21a, a lieu.As soon as the tank is filled, the electronic circuit 40 is informed of this, for example by a level detector, not shown as known. It can control the triac 15 to stop the engine 11, and move the block 120, still in the direction T, for example, to bring the latter into the position where the point denoted F ′ coincides with the lever of the switch 22 b , position beyond which this lever would cease to be pushed by the cam 20b. The water intake is therefore stopped, and the heating of the water, by the resistance 21 a , takes place.

Le triac 15 est alors commandé et le bloc 1 est entraîné dans le sens I sur un angle inférieur à l'amplitude de la plage PP, puis dans le sens T, et ainsi de suite, de façon à commander les mouvements de va et vient du tam­bour. Naturellement, si il est jugé souhaitable d'avoir, pendant le chauffage, des mouvements de va et vient de durées différentes, par exemple, de ce qu'ils étaient au cours du remplissage, ceci est tout à fait possible et le circuit 40 est programme en conséquence.The triac 15 is then controlled and the block 1 is driven in the direction I over an angle less than the amplitude of the range PP, then in the direction T, and so on, so as to control the movements back and forth. of the drum. Naturally, if it is deemed desirable to have, during heating, back and forth movements of different durations, for example, than they were during filling, this is quite possible and the circuit 40 is program accordingly.

Le programme de lavage peut ainsi se dérouler jusqu'à la fin avec, comme cela a été souligné, une grande souplesse dans la commande des mouvements d'inversion du sens de rotation du tambour.The washing program can thus run to the end with, as has been pointed out, great flexibility in controlling the movements for reversing the direction of rotation of the drum.

Naturellement, si les bosses 101 et les creux 102 sont beaucoup plus nombreux et rapprochés que cela n'a été représenté sur les figures, il est possible d'utiliser aussi le programmateur de l'invention comme un program­mateur conventionnel, en commandant le moteur 41 pour qu'il tourne à vitesse constante, assez faible, et toujours dans le même sens. Comme cela est connu et évi­dent, la durée de chacune des étapes du programme est alors liée à la longueur de chaque creux ou bosse et à la vitesse du moteur 41.Naturally, if the bumps 101 and the hollows 102 are much more numerous and close together than has been shown in the figures, it is possible to use also the programmer of the invention as a conventional programmer, by controlling the motor 41 so that it rotates at constant speed, fairly low, and always in the same direction. As is known and obvious, the duration of each of the program stages is then linked to the length of each recess or bump and to the speed of the motor 41.

Comme cela a été signalé, et représenté sur les figures 2 et 4, les cames 20a, 20b,..., 20i,..., 20n du second groupe ne comprennent chacune qu'une seule bosse, répar­ties pour que ce groupe comporte une pluralité de plages principales, à l'intérieur de chacun desquels un seul organe 21a, 21b,..., 21i,..., 21n se trouve alimenté, en principe. Naturellement, si l'on prévoit qu'il sera par­fois nécessaire d'alimenter en même temps deux ou plu­sieurs organes 21a, 21b,..., 21i,..., 21n, les plages principales correspondantes seront prévues. Dans ce cas, la structure mécanique du bloc 120 est simple, et les programmes sont mémorisés dans le circuit électronique 40. Celui-ci commande le bloc 120 non pas pour avancer d'un pas de programme à chaque fois, sans se préoccuper de l'organe qui va être ainsi mis en marche, mais pour aller mettre en marche un organe déterminé, à commander au cours de ce pas de programme.As has been pointed out, and represented in FIGS. 2 and 4, the cams 20 a , 20 b , ..., 20 i , ..., 20 n of the second group each comprise only one bump, distributed for that this group comprises a plurality of main areas, inside each of which a single member 21 a , 21 b , ..., 21 i , ..., 21 n is supplied, in principle. Naturally, if it is foreseen that it will sometimes be necessary to supply two or more members 21 a , 21 b , ..., 21 i , ..., 21 n at the same time , the corresponding main ranges will be provided. In this case, the mechanical structure of the block 120 is simple, and the programs are stored in the electronic circuit 40. The latter controls the block 120 not to advance by one program step each time, without being concerned with the 'organ which is going to be thus started, but to go to start a specific organ, to be controlled during this program step.

On notera qu'il n'est pas nécessaire, alors, que le bloc 120 soit commandé toujours dans le même sens, et que l'on peut choisir le sens de déplacement du bloc 120 qui minimise la durée de chacun des déplacements à effectuer.Note that it is not necessary, then, that the block 120 is always controlled in the same direction, and that one can choose the direction of movement of the block 120 which minimizes the duration of each of the movements to be performed.

Le bloc 120 pourrait cependant, comme dans les programma­teurs de l'art antérieur, être divisé en une pluralité de secteurs angulaires correspondant chacun à un programme différent, le choix d'un de ces programmes étant fait en déplaçant le bloc 120 pour amener le début du secteur correspondant en face de la ligne de contacts entre les cames et les leviers, et le déroulement de ce programme étant obtenu en faisant ensuite balayer ce secteur par le bloc 120. Dans un tel cas, c'est le bloc 120 qui mémo­rise, au moins en partie, les programmes de lavage.Block 120 could however, as in the programmers of the prior art, be divided into a plurality of angular sectors each corresponding to a different program, the choice of one of these programs being made by moving the block 120 to bring the start of the corresponding sector opposite the line of contacts between the cams and the levers, and the progress of this program being obtained by then sweeping this sector by the block 120. In such a case, c is the block 120 which stores, at least in part, the washing programs.

Dans un cas comme dans l'autre, lorsque le bloc 120 se trouve entraîné assez rapidement pour aller vers le début d'un programme déterminé, s'il est du type "à mémoire", où pour aller commander un organe déterminé, s'il est du type "sans mémoire", il passe par un certain nombre de positions intermédiaires, ce qui a pour effet d'alimenter brièvement certains organes.In one case as in the other, when the block 120 is driven quickly enough to go towards the beginning of a determined program, if it is of the "memory" type, where to go to control a determined organ, s' it is of the "without memory" type, it passes through a certain number of intermediate positions, which has the effect of briefly supplying certain organs.

Dans certains cas, on peut tolérer ce phénomène. Dans d'autres il est considéré comme gênant, parce qu'il est à l'origine de bruits parasites, et parce qu'il risque d'endommager les organes ainsi mis sous tension pour un trop bref intervalle de temps.In some cases, this phenomenon can be tolerated. In others it is considered annoying, because it is the source of parasitic noise, and because it risks damaging the organs thus energized for too short a period of time.

La figure 5 montre une variante de la machine de la figure 1, pour lequel il est prévu un relais 25, commandé par le circuit 40 pour mettre hors circuit les organes 21a, 21b,..., 21i,..., 21n lors des déplacements du bloc 2. Le relais 25 est disposé dans une connexion commune reliant les organes 21a, 21b,..., 21i,..., 21n à la borne N. Il n'est pas nécessaire de prévoir ici un relais pour le moteur 11, le triac 15 permettant d'ouvrir la connexion si nécessaire.Figure 5 shows a variant of the machine of Figure 1, for which there is provided a relay 25, controlled by the circuit 40 to switch off the organs 21 a , 21 b , ..., 21 i , ... , 21 n during movement of the block 2. The relay 25 is arranged in a common connection connecting the members 21 a , 21 b , ..., 21 i , ..., 21 n to the terminal N. It is not no need here to provide a relay for the motor 11, the triac 15 making it possible to open the connection if necessary.

Le relais 25 est donc commandé par le circuit 40 avant tout déplacement du bloc 120 susceptible d'occasionner le phénomène décrit.The relay 25 is therefore controlled by the circuit 40 before any movement of the block 120 likely to cause the phenomenon described.

Le circuit électronique 40 est, par exemple, un circuit à microprocesseur. La conception d'un tel circuit, à partir de la description qui a été faite des fonctions qu'il doit réaliser, est évidente pour un homme du métier.The electronic circuit 40 is, for example, a microprocessor circuit. The design of such a circuit, from the description which has been made of the functions which it must perform, is obvious to a person skilled in the art.

Naturellement, la portée de la présente demande n'est pas limitée à la description qui vient d'être faite, et qui a été volontairement simplifiée dans un souci de clarté. C'est ainsi, que, à titre d'exemple, et de façon connue, il est possible de prévoir, sur le moteur universel 11, un inducteur à prise intermédiaire, pour n'utiliser qu'une partie de cet inducteur lorsqu'on a besoin que le moteur 11 tourne à vitesse très élevée. Dans ce cas, un inver­seur simple, actionné par une came du bloc 120, commande le branchement de la totalité ou d'une partie seulement de l'inducteur. On pourrait également, à la place de moteur universel 11, utiliser tout type de moteur, comme par exemple un moteur asynchrone, ou un moteur à courant continu. De même, dans l'exemple décrit, les cames du premier groupe sont relatives à l'inversion du sens de rotation du moteur du tambour, tandis que celle du second groupe sont relatives à la commande des autres organes de la machine. Si une telle répartition est intéressante, comme on l'a vu, dans le cas d'une machine à laver le linge, elle n'est, même dans ce cas, par obligatoire et l'homme du métier est à même de choisir la répartition qui est la plus intéressante, compte tenu du problème spécifique à résoudre.Naturally, the scope of the present application is not limited to the description which has just been made, and which has been deliberately simplified for the sake of clarity. Thus, by way of example, and in a known manner, it is possible to provide, on the universal motor 11, an inductor with an intermediate tap, so as to use only part of this inductor when needs the motor 11 to run at very high speed. In this case, a simple inverter, actuated by a cam of the block 120, controls the connection of all or only part of the inductor. One could also, instead of universal motor 11, use any type of motor, such as for example an asynchronous motor, or a DC motor. Similarly, in the example described, the cams of the first group relate to the reversal of the direction of rotation of the drum motor, while that of the second group relate to the control of the other members of the machine. If such a distribution is interesting, as we have seen, in the case of a washing machine, it is not, even in this case, mandatory and the skilled person is able to choose the which distribution is the most interesting, taking into account the specific problem to be solved.

Naturellement, lorsque plusieurs organes sont affectés au premier groupe 1, c'est-à-dire sont commandés par les plages élémentaires, chacune de ces plages élémentaires est relative à l'alimentation d'une combinaison particu­lière de ces organes. Par ailleurs, il est clair que dans la description qui précède, où seul le moteur universel 11 est affecté au premier groupe 1, il faut entendre par "combinaison particulière" les branchements de l'inverseur double 12 qui permettent de faire tourner le moteur 11 dans un sens, dans l'autre, ou de l'arrêter. Evidemment, il n'est pas obligatoire que toutes les com­binaisons particulières possibles des organes du premier groupe 1 soit prévues dans la séquence de plages élémen­taires contenue dans chaque plage principale. De même, dans le cas décrit, la séquence de plages élémentaires pourrait être simplement PEg, PEn, PEd, ou encore PEg, PEd.Naturally, when several organs are assigned to the first group 1, that is to say are controlled by the elementary ranges, each of these elementary ranges relates to the supply of a particular combination of these organs. Furthermore, it is clear that in the above description, where only the engine universal 11 is assigned to the first group 1, by "special combination" is meant the connections of the double inverter 12 which make it possible to rotate the motor 11 in one direction, in the other, or to stop it. Obviously, it is not compulsory that all the possible particular combinations of the organs of the first group 1 be provided in the sequence of elementary ranges contained in each main range. Similarly, in the case described, the sequence of elementary ranges could simply be PE g , PE n , PE d , or even PE g , PE d .

Enfin, le fait que les plages principales PP comprennent chacune la même séquence de combinaisons particulières des organes du premier groupe 1 permet de conserver toutes les possibilités de commande des organes du pre­mier groupe 1, quelle que soit la plage principale dans laquelle se trouve le bloc 120. Ceci donne donc une grande souplesse dans l'emploi du programmateur. Toutefois, il peut y avoir des situations où cette possibilité n'est pas indispensable, et où l'on peut bénéficier de l'adapta­bilité du programmateur de l'invention dans la mesure où celui-ci permet, dans certaines plages principales seule­ment, certaines possibilités de commande des organes du premier groupe 1. Or un tel avantage peut être obtenu dès lors qu'au moins une plage principale est divisée en une pluralité de plages élémentaires et qu'il est prévu l'entraînement du bloc 120 dans les deux sens.Finally, the fact that the main ranges PP each comprise the same sequence of particular combinations of the organs of the first group 1 makes it possible to retain all the possibilities of controlling the organs of the first group 1, whatever the main range in which the block is located 120. This therefore gives great flexibility in the use of the programmer. However, there may be situations where this possibility is not essential, and where one can benefit from the adaptability of the programmer of the invention insofar as it allows, in certain main ranges only, certain possibilities of controlling the organs of the first group 1. However, such an advantage can be obtained as soon as at least one main area is divided into a plurality of elementary areas and there is provision for driving the block 120 in both directions .

Naturellement, le programmateur n'est pas limité à la commande d'une pluralité d'organes réunis au sein d'un même appareil, et peut être utilisé dans le cas d'un système industriel comprenant une pluralité d'organes disséminés.Naturally, the programmer is not limited to controlling a plurality of organs assembled within the same device, and can be used in the case of an industrial system comprising a plurality of disseminated organs.

Claims (5)

1. Programmateur pour appareil, ou système, pourvu d'une pluralité d'organes électriques (11, 21a - 21n) à alimen­ter sélectivement et séquentiellement, programmateur comprenant un bloc (120) de cames (10a - 10b, 20a - 20n) coopérant avec une pluralité de contacts (12, 22a - 22n) d'alimentation desdits organes, et des moyens d'entraî­nement (40 - 41) dudit bloc en déplacement, programmateur caractérisé par le fait que :
- lesdits organes sont répartis en un premier (1) et un second (2) groupe,
- l'ensemble des positions possibles dudit bloc (120) est divisé en une pluralité de plages principales (PP) relatives, chacune, à l'alimentation d'une combinaison particulière des organes (21a - 2ln) dudit second groupe (2),
- au moins une plage principale (PP) est divisée en une pluralité de plages élémentaires (PEg, PEn, PEd) rela­tives, chacune, à l'alimentation d'une combinaison particulière des organes (11) dudit premier groupe (1), et,
- lesdits moyens d'entraînement (40 - 41) sont agencés pour entraîner ledit bloc (120) dans les deux sens.1. Programmer for an apparatus, or system, provided with a plurality of electrical components (11, 21 a - 21 n ) to be fed selectively and sequentially, programmer comprising a block (120) of cams (10 a - 10 b , 20 a - 20 n ) cooperating with a plurality of contacts (12, 22 a - 22 n ) supplying said members, and drive means (40 - 41) of said moving block, programmer characterized in that:
- said members are divided into a first (1) and a second (2) group,
- the set of possible positions of said block (120) is divided into a plurality of main areas (PP), each relating to the supply of a particular combination of members (21 a - 2l n ) of said second group (2 ),
- at least one main area (PP) is divided into a plurality of elementary areas (PE g , PE n , PE d ), each relating to the supply of a particular combination of the members (11) of said first group (1 ), and,
- Said drive means (40 - 41) are arranged to drive said block (120) in both directions. 2. Programmateur selon la revendication 1, dans lequel lesdites plages principales (PP) comprennent chacune une pluralité de plages élémentaires (PEg, PEn, PEd) relati­ves à la même séquence de combinaisons particulières des organes (11) dudit premier groupe (1).2. Programmer according to claim 1, in which said main ranges (PP) each comprise a plurality of elementary ranges (PE g , PE n , PE d ) relating to the same sequence of particular combinations of the members (11) of said first group ( 1). 3. Programmateur selon l'une des revendications 1 ou 2, dans lequel lesdits moyens d'entraînement comprennent un moteur (41) à double sens et un circuit électronique (40) de commande dudit moteur (41).3. Programmer according to one of claims 1 or 2, wherein said drive means comprise a two-way motor (41) and an electronic circuit (40) for controlling said motor (41). 4. Programmateur selon l'une des revendications 1 à 3, dans lequel il est prévu des moyens (40, 25) pour mettre hors circuit au moins une partie desdits organes (21a - 21n) pendant le déplacement des cames (20a - 20n) cor­respondantes.4. Programmer according to one of claims 1 to 3, in which means (40, 25) are provided for switching off at least part of said members (21 a - 21 n ) during the movement of the cams (20 a - 20 n ) corresponding. 5. Programmateur selon l'une des revendications 1 à 4, dans lequel ledit appareil est une machine à laver le linge pourvue d'un tambour et de moyens (11) d'entraîne­ment dudit tambour en rotation, ledit premier groupe (1) comprend lesdits moyens (11) d'entraînement du tambour en rotation, et chacune desdites plages principales (PP) est divisée en au moins deux plages élémentaires, l'une (PEg) relative à l'alimentation desdits moyens (11) d'entraîne­ment du tambour dans un sens, et l'autre (PEd) relative à l'alimentation desdits moyens (11) d'entraînement du tambour dans l'autre sens.5. Programmer according to one of claims 1 to 4, wherein said apparatus is a washing machine provided with a drum and means (11) for driving said rotating drum, said first group (1) comprises said means (11) for driving the rotating drum, and each of said main areas (PP) is divided into at least two elementary areas, one (PE g ) relating to the supply of said means (11) for driving of the drum in one direction, and the other (PE d ) relating to the supply of said means (11) for driving the drum in the other direction.
EP19890403598 1989-03-06 1989-12-21 Monoblock programmer, in particular for household appliances Expired - Lifetime EP0386383B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8902894 1989-03-06
FR8902894A FR2644008B1 (en) 1989-03-06 1989-03-06 MONOBLOCK PROGRAMMER, ESPECIALLY FOR HOUSEHOLD APPLIANCES

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EP0386383A1 true EP0386383A1 (en) 1990-09-12
EP0386383B1 EP0386383B1 (en) 1995-04-26

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EP19890403598 Expired - Lifetime EP0386383B1 (en) 1989-03-06 1989-12-21 Monoblock programmer, in particular for household appliances

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EP (1) EP0386383B1 (en)
BR (1) BR8902729A (en)
DE (1) DE68922388T2 (en)
ES (1) ES2074475T3 (en)
FR (1) FR2644008B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685542A1 (en) * 1991-12-20 1993-06-25 Esswein Sa Improvement to the regulation of a washing machine by programmer
DE4426681A1 (en) * 1994-07-28 1996-02-01 Ako Werke Gmbh & Co Program switching mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE889434C (en) * 1950-12-09 1953-09-10 E De Marneffe & Cie Automatic control device for washing machines u. like
DE1585637A1 (en) * 1965-12-24 1971-11-04 Crouzet Sa Program control device, especially for washing machines and the like.
FR2519660A1 (en) * 1982-01-08 1983-07-18 Crouzet Sa DEVICE FOR SWITCHING OFF THE POWER SUPPLY OF AN AUTOMATIC WASHING MACHINE DURING THE SELECTION OF A PROGRAM
FR2602600A1 (en) * 1986-08-09 1988-02-12 Ako Werke Gmbh & Co Programmed switching mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE889434C (en) * 1950-12-09 1953-09-10 E De Marneffe & Cie Automatic control device for washing machines u. like
DE1585637A1 (en) * 1965-12-24 1971-11-04 Crouzet Sa Program control device, especially for washing machines and the like.
FR2519660A1 (en) * 1982-01-08 1983-07-18 Crouzet Sa DEVICE FOR SWITCHING OFF THE POWER SUPPLY OF AN AUTOMATIC WASHING MACHINE DURING THE SELECTION OF A PROGRAM
FR2602600A1 (en) * 1986-08-09 1988-02-12 Ako Werke Gmbh & Co Programmed switching mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685542A1 (en) * 1991-12-20 1993-06-25 Esswein Sa Improvement to the regulation of a washing machine by programmer
DE4426681A1 (en) * 1994-07-28 1996-02-01 Ako Werke Gmbh & Co Program switching mechanism

Also Published As

Publication number Publication date
EP0386383B1 (en) 1995-04-26
FR2644008A1 (en) 1990-09-07
FR2644008B1 (en) 1991-05-31
BR8902729A (en) 1990-11-13
DE68922388D1 (en) 1995-06-01
DE68922388T2 (en) 1996-04-11
ES2074475T3 (en) 1995-09-16

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