KR100614365B1 - Method for operating a programmable washing machine and washing machine for carrying out said method - Google Patents

Abstract

In order to strengthen and accelerate the washing process, a significant amount of the required fluid is supplied directly to the laundry inside the washing drum 13 without detergent. The fluid is supplied in two stages until a fixed amount of fluid is supplied. In the first stage the fluid is supplied via the bypass tube 6 over the sleeve 8 and in the second stage the detergent is supplied at intervals between the washing drum 13 and the laundry barrel 9 together with the detergent. In a third step, water is once again supplied into the washing drum 13 via the bypass tube 6 and the sleeve 8. The process is monitored by an expert system including a pressure sensor and a flow sensor. The setpoint is determined by comparing the parameters determined by the evaluation system with the measured data depending on the load while the fluid is being supplied. Known adjustment systems are used for the required level calibration. According to the present invention, when the washing drum continuously rotates, the laundry can be completely wetted, and basically the bleaching of the laundry is prevented. According to the present invention, water and power can be saved, and the heating process can be carried out continuously. The laundry is more evenly moistened.

Description

METHOD FOR OPERATING A PROGRAMMABLE WASHING MACHINE AND WASHING MACHINE FOR CARRYING OUT SAID METHOD}

The present invention has a laundry drum that accommodates laundry to be treated and rotates in a fixed laundry container, the laundry is guided through a closed opening of the laundry drum, and the closed opening of the laundry container is sealed by an elastic sleeve. A bypass tube connected to the opening and directed to the inner side of the sleeve is integrally configured to directly wet the sleeve and the laundry with the fluid, the washing machine having a detergent rinsing device having at least one detergent chamber, and rinsing from the detergent rinsing device. And a method for driving a program controlled washing machine through which a fluid with detergent is guided into the space between the wash drum and the wash tub.

According to the known washing machine, the detergent is rinsed from the detergent chamber by the detergent rinsing device and supplied to the inlet in the space between the washing drum and the washing tub. Thus, in order to use the laundry with detergent as early as possible, the inlet is often directed to the cover of the laundry drum. The rinse process not only carries the detergent but also dissolves in the fluid. The detergent first comes into contact with the laundry before it dissolves, and then creates the risk of bleaching or spotting the laundry. Clean water is generally introduced as a fluid and the detergent represents each suitable laundry-aftertreatment material.

In order to wet the laundry, a unique washing process is initiated when a mixture of detergent and a fluid, hereinafter described as washing solution, is provided in the wash bin in an advantageous quantity. For the washing process, it is necessary that the laundry be wetted at the same time and sufficiently. But in order to save time, the process of soaking is carried out for the shortest time possible.

According to the washing machine of the prior art, the detergent solution circulates sufficiently and is spilled or sprinkled on the laundry inside the washing drum. For this purpose, for example, a pumping device is used, when the pumping device is distributed and arranged on the drum cover and the washing drum is immersed in water, the detergent solution is pumped up, Ascend to position, then wet the laundry inside the drum. According to this means, the laundry is simultaneously wetted onto the lifter from the inside and wetted on the known flow holes of the drum cover from the outside. The washing motion of the laundry is accelerated by the rotational motion of the laundry drum and the rolling motion of the laundry.

According to the washing machine, the washing process is first started when the height of the fluid in the washing tub reaches the minimum height, and the minimum height is approximately located at the highest height line of the lower portion of the drum cover plate. Thus, the whole laundry program is delayed in the process and the process of the laundry soaking, and virtually independent of the means, the process assists in the process of the laundry soaking.

According to the known method for driving the washing machine according to the main concept (of document DE 199 08 905A1), in order to start the washing process, the sleeve is wetted with fluid without detergent, so that the washing process is accelerated.

Therefore, immediately after the filling process is started, the filling process wets the rubber plane of the sleeve without supplying detergent in the first step, and the washing drum is already rotated without having to wait until a favorable fluid level is provided in the washing tub. In other words, when the laundry drum rotates prematurely, the process of wetting the rubber plane causes the laundry to be rubbed in a fairly dry state, and thus damage to the laundry can be further prevented.

Subsequently, after the main detergent chamber is rinsed, the fluid together with the detergent first reaches the space between the laundry tub and the laundry drum. Before the fluid inside the wash bin reaches the minimum height, the detergent can stay at the base of the wash bin and disintegrate sufficiently, and based on the movement of the drum, the detergent can be removed from the bottom and top through the lifting device and the flow hole in the drum cover plate. Reach the laundry.

However, according to this method, it is not possible to completely exclude that the undecomposed detergent directly reaches the laundry and causes higher intensity spotting in the laundry. Especially when undecomposed detergent acts on laundry which is not sufficiently wetted, this type of damage is strongly generated.

Whenever the supply of fluid is controlled by a known method via a water level regulating device, i.e., a known pressure sensor, a control impulse is generated for the magnet valve, and when the magnet valve reaches the upper water level, When shut off and staying at the lower water level, it opens again. During the soaking process, a shake of the fluid level occurs, which shakes depending on the suction force of the laundry and the device (eg, polisher) associated with the laundry. Thus, the speed of the fluid actuator is reduced. The fluid supply controlled in this form is discontinuous, and as a result, the downtimes associated with control and aspiration are lengthened, so that the wetness of the laundry and the time for the washing process are not reduced. On the other hand, reducing the downtime through the proximity of both control heights only increases the number of control processes, and the soaking process cannot be further accelerated.

In addition, simultaneous heating of the detergent solution is initiated for the washing process. If a relatively cold fluid is strongly supplied by a slow suction process in the preceding process, an unnecessarily strong temperature change occurs, especially in the upper temperature range.

If the laundry is sufficiently wetted, the fluid level must be controlled, continuing to the deepest value. The final value corresponding to this height causes economic losses. More water is consumed than is needed for the washing process, water consumption is increased, energy consumption is increased and heating time is longer.

The more the control positions of the pressure sensors are arranged in and out of each other, i.e., the larger the difference between the upper and lower heights is selected, the greater the consumption is possible. Economic losses can be prevented if the upper height control positions are reduced. First, the program operation time is increased in the number and process of the control process. In order to solve the above problem, according to document DE 195 05 639 A1, during the program phase, in particular during the main washing or rinsing process, depending on the elapsed program operating time or depending on the state variable changed by the program operating time, In other words, the control position monitored by the program controller is reduced. Thus, if the upper control height is reduced by the elapsed program operating time, further feeding steps are avoided or limited. Since the means are not provided to accelerate the process of wetting the laundry, the result by the additional means is only conditionally satisfied.

It is an object of the present invention that the washing process, program duration, water and energy consumption can be optimized, the detergent solution is continuously heated, the risk of undecomposed detergent directly reaching the laundry is reduced, a form known at the outset. Way and to provide a washing machine.

According to the invention, the above object is achieved by the features of claims 1 to 4. Further advantageous embodiments are provided in the dependent claims and the like.

According to the method of the invention,

In the first step a fluid containing no detergent is introduced into the laundry drum and onto the laundry through a bypass tube facing the inside of the sleeve without movement of the laundry drum,

-When the washing drum is moved in the second stage, a predetermined amount of fluid, including detergent, is introduced through the detergent chamber between the washing drum and the washing tub,

When the washing drum is in motion in the third stage, in order to wet the laundry sufficiently, fluid containing no detergent is led through the bypass tube onto the laundry inside the laundry drum until the total amount of fluid to be supplied is reached.

First, the washing drum stops and the sleeve is wet, and then the washing drum rotates. About 0.3 liters to 1 liter of fluid is supplied through the sleeve in the drum during the short time that the washing drum stops, so that the sleeve is wet. Therefore, the laundry moving by the washing drum on the fixed rubber part is prevented from being rubbed in a dry state.

Prior to the second stage, some fluid has already moved to the wash vent base and detergent is introduced with additional fluid during the second stage at the bases. In addition, when the washing drum controlled in the second step rotates, the action of simultaneously washing the laundry is immediately started. Thus, the detergent is rinsed from the main detergent chamber of the detergent rinsing apparatus by a known method. For example, the inlet opening of the detergent-bearing fluid is arranged at the position of the washing tub, and the inlet opening is located close to the base.

The fluid guided into the wash tub through the detergent chamber is limited to the amount needed to rinse the detergent. For example, the inflow of the fluid without detergent in the first stage and the inflow of the fluid with detergent in the second stage may have a ratio of 1: 5 to 1:15, in particular 1:10. The time of the second stage is continued so that up to 5 liters of fluid travel through the main detergent chamber. For this action, the detergent is rinsed without residue, and the bottom of the washing well is well layered, in which the laundry is wetted through the flow hole on the one hand, and on the other hand, the pumping device is flooded with water sufficiently and sprayed onto the laundry. The washing drum is submerged wide so that it is driven.

In the third step, the fluid is guided to the bypass pipe and sleeve inside the drum and to the laundry without detergent until the target amount is reached. The washing process is significantly accelerated. In addition, the risk that undissolved detergents can damage laundry is eliminated. In addition, in a third step, the fluid is guided from the outside of the wash drum into the wash bin, for example at the base of the wash bin to the normal inlet.

According to an advantageous embodiment of the invention, the total amount of guided fluid is ascertained by the measurement technique, and the rinse process is first blocked after reaching a given start-target amount. In addition, after a predetermined start-target amount is supplied, the additional supply of fluid is controlled depending on the level in the washing tub. The starting target amount is provided from a preselected laundry program and the quantity and characteristics of the laundry. The program is configured by a system consisting of a measurement value input device (e.g. a pressure sensor) for monitoring pressure rise, another measurement value input device for determining the quantity supplied, and an intelligent evaluation system to which the output signal of the measurement value input device is input. The steps are controlled. The target value is generated by comparing the entered measurement data with the parameters stored in the intelligent evaluation system.

According to the present invention, the starting target amount is calculated during the rinsing process. In particular in this regard, the target value is newly set in each washing process. The target value depends on the nature of the laundry (eg suction force) and the load. Therefore, the amount of water favorable to the washing process is reliably supplied for each washing process regardless of misoperation.

According to another advantage of the method according to the invention, the continuous supply of fluid and the generation of the target value until the target value is reached depends on the pressure change with respect to the local water supply and the interruption of the supply.

The target value is related to the total quantity supplied, and according to the present invention, the target value is previously determined by the intelligent evaluation system so that the optimum height of the washing solution not supplied for the washing process is approximately reached. After reaching each target value, the intelligent evaluation system controls the water supply.

According to the present invention, the washing process is actually accelerated, water consumption is suitably saved against the load of the washing drum, and thus energy consumption is minimized. According to the method of the present invention, the continuity of the heating step can be increased. Since the target height of the fluid is reached very accurately, the water supply can be stopped during or after the heating step. Therefore, the temperature change is not caused by the cold water supplied later in the main washing process.

The invention is shown in the drawings by embodiments for a washing machine of the invention. A description of a washing machine and a method for operating the washing machine is described in detail in the following description by embodiments.

1 is a perspective view showing a washing machine of the present invention.

2 is a view showing a detergent rinsing apparatus used in the washing machine of FIG.

* Symbol description *

9: washing container 13: washing drum

14: driving body 15: airtight door

17,18,19: Detergent chamber

The washing machine is shown as a perspective view for better checking, and the illustration along the rigid axis is omitted. The arrow shown indicates the flow direction.

The washing machine (shown in FIG. 1) is arranged with a spring-loaded, generally cylindrical wash bin 9 suspended inside the housing. In the laundry container 9, the washing drum 13 is rotatably supported horizontally. Simultaneously rising relative to the front side, the rotating shaft can be arranged in a slight inclined structure. The washing tub 9 and the washing drum 13, the driving device not shown in the drawing, constitute a whole system having a rotating and hanging structure. The washing drum 13 has a plurality of flow holes for exchanging the fluid from the inside to the outside and the fluid in the reverse direction. In addition, when the washing drum 13 has a plurality of driving bodies 14 at the periphery, and the washing drum 13 rotates, the driving bodies support the movement of the laundry. Through the rotational movement of the washing drum at a relatively high position, a pumping device, not shown in detail in the drawing, raises the fluid from the washing barrel 9 and flows out of the inner side of the washing drum 13.

In the washing machine, laundry may be provided in the washing machine through an opening arranged concentrically with respect to the washing drum 13 in the washing machine and a sealed opening in the washing tub 9 in the washing drum 13. The sealing openings in the housing and the laundry tub 9 are connected to each other via an elastic sleeve 8. By using the sleeve, when the washing drum 13 rotates, the laundry container and the housing are sealed and the rotational movement becomes the same. The sealed opening in the housing is sealed in a sealed state with the window 10 of the integral structure through the sealed door 15.

The washing machine is connected to the housing water supply system through a supply pipe 2 and a controllable magnet valve 5 not shown in the drawing. The supplied clean water is moved through the detergent chamber inside the detergent rinsing apparatus 1, in which the water rinses off the detergent provided. Detergent and water flow down through the tube (11) and the inlet opening (12) inside the laundry container (9).                 

In order to control the water flow, the turning part 22 of the water flow is arranged in front of the detergent chambers 17, 18, 19 (FIG. 2). The branch pipe 4 is connected to the fluid conduit 3 in front of the detergent chamber 17. The branch pipe 4 is connected to the inlet inside the sleeve 8 via a hose 6 as a bypass pipe. The inlet 7 is arranged so that the water supplied to wet the laundry can be sprayed over the most possible sleeve 8-if necessary-over the window 10 of the sealed door 15.

In addition, according to the known art, a control device for controlling the driving process of the washing machine is shown in the washing machine according to the known art, and in particular, the driving device of the magnet valve 5 and the washing drum 13 not shown in the drawing by the control device. Can be controlled.

In order to measure the amount of flowing water, a flow sensor 26 is mounted in the supply line 2 to the detergent rinsing device 1. In addition, the hydraulic pressure change is confirmed through an analog pressure sensor not shown in the figure. Both sensors are connected to an intelligent evaluation system (expert system) not shown in the figure, and the output signal of the system controls the magnet valve 5.

The supply pipe 2 is opened through the magnet valve 5 by the start of the program. Clean water flows from the inside of the washing drum 13 to the sleeve 8 through the branch pipe 4 and the hose-by-pass pipe 6 and through the detergent chamber 17 the pipe 11 inside the washing container 9. Flow).

In general, before the washing process starts, the laundry to be filled by the user is in a dry state, and when the present invention is not used, the laundry is dried for a long time and rubbed with the sleeve 8, which is disadvantageous.

Therefore, according to the configuration of the present invention, when the washing drum 13 is stopped to start the washing process, the fluid is supplied to the sleeve, and as a result, the sleeve is wetted, and the laundry is connected when the washing drum moves in connection with the laundry. Dry friction action is prevented.

In the second step, water is guided to the detergent chamber 19 through the feed tube 24, the diverter 22 and the fluid tube 21. The detergent is rinsed out of the detergent rinsing device 1 and the detergent is conveyed with water to the lower region of the laundry container 9 through the conduit 11 so that the detergent does not directly reach the laundry. Before the detergent comes into contact with the laundry in the laundry drum 13, the detergent rinsed in the middle is disintegrated in the laundry container 9.

In the third stage, clean water is supplied into the washing tub 9 through the preliminary detergent chamber 17 and into the drum through the branch pipe 14 and the bypass pipe 6 as in the first stage.

The laundry is quickly and simultaneously wetted by the movement of the controlled wash drum after a short delay to start the program.

According to the method of the present invention, the washing process proceeds more quickly and intensively at the same time. The risk of spotting due to the concentration of detergent in part of the laundry is eliminated.

Claims (16)

With a laundry drum 13 for receiving laundry to be treated and rotating in a fixed laundry container 9, the laundry is guided through a closed opening of the laundry drum 13 and by an elastic sleeve 8. The sealing opening of the washing container 9 is connected to the sealing opening of the washing machine housing, and the sleeve (1) during the first step and the second step of the process for filling the fluid by the bypass pipe 6 toward the inner part of the sleeve 8 8) and integrally configured to directly wet the laundry with the fluid, the washing machine has a detergent rinsing apparatus 1 having at least one detergent chamber 19, and the fluid is washed with the detergent through a rinsing process from the detergent rinsing apparatus. In a method for driving a program controlled washing machine guided into a space between a drum (13) and a laundry container (9), In the first step a fluid containing no detergent is introduced into the laundry drum 13 and onto the laundry through the bypass tube 6 facing the inner side of the sleeve 8 without movement of the laundry drum 13, When the washing drum 13 moves in the second stage, a predetermined amount of fluid, including detergent, is introduced between the washing drum 13 and the washing tub 9 through the detergent chamber 19, When the washing drum 13 is in motion in the third stage, in order to wet the laundry sufficiently, fluid containing no detergent is passed through the bypass pipe 6 until the total amount of fluid to be supplied is reached ( 13) A method for driving a program controlled washing machine characterized in that it is guided on an internal laundry. The amount of fluid of the fluid flowing through the detergent chamber 19 in the space between the washing drum 13 and the laundry container 9 is limited to the size of sufficiently rinsing the detergent chamber 19 in the second step. Method for driving a program controlled washing machine, characterized in that. Method according to claim 1, characterized in that in the third step the fluid is guided from the outside of the washing drum (13) into the washing tub. The method of claim 1, wherein the total amount of guided fluid is ascertained by a measurement technique and the rinsing process is first interrupted after reaching a given start-target amount. delete delete 5. A method according to any one of claims 1 to 4, wherein a starting target amount is calculated during the rinsing process. 5. A method according to claim 4, characterized in that after the set start-target amount has been supplied, the additional supply of fluid is controlled depending on the water level inside the wash tub (9). A washing machine for carrying out the method of claim 1, wherein the washing machine comprises a control unit for limiting the amount of fluid supplied and a control unit for controlling the water level inside the washing tub (9). 10. The measuring device according to claim 9, wherein the control unit for limiting the amount of fluid supplied has a measuring device 25 for monitoring the pressure increase and another measuring device 26 for monitoring the supplied fluid amount. Washing machine characterized in that signals (25, 26) are connected to the expert system and signals for terminating the control action, in particular the fluid inflow, are generated depending on the selected program and the controlled parameters. 10. The washing machine according to claim 9, wherein a pressure sensor (25) is provided as a measuring device for measuring the water level, and a flow sensor (26) is provided as a measuring device for measuring the supply amount. The expert system according to claim 10, wherein the expert system is used in comparison with a signal provided and a parameter relating to a pressure increase depending on the amount of fluid flowing into the signal input through the measuring element in the storage of the expert system to generate a target value. Washing machine characterized in that. 10. The washing machine according to claim 9, wherein the control unit for controlling the water level in the washing tub (9) is composed of a pressure monitoring device (25) according to a known method. 10. The washing machine according to claim 9, wherein a shut-off device is formed in the supply pipe (2) related to the washing machine. The washing machine according to claim 14, wherein the blocking device is a known magnet valve (5). 10. The washing machine according to claim 9, wherein the shutoff device in the fluid supply pipe (2) can be operated through a control unit for limiting the quantity of water supplied and a control unit for controlling the water level in the washing container (9). .

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