CN103261508A - Laundry treatment device having a screen holder and method for operating a laundry treatment device having a lint screen - Google Patents

Abstract

The laundry treatment device (1) has a screen holder (27) for holding a screen (28), wherein the screen holder (27) has at least one associated level measuring device (31) for measuring at least one reading on the screen holder (27).

Description

Laundry treatment appliance with sieve receptacle and method for operating laundry treatment appliance with fluff sieve

The invention relates to a laundry treating appliance having a filter receiver for receiving a filter. The invention also relates to a method for operating a laundry treatment appliance with a lint filter. the

Document WO 2010/028992 A1 discloses a dryer comprising a drying chamber for receiving wet goods and a process gas guide for conveying process gas into the drying chamber and discharging the process gas from the drying chamber , the process gas guiding device has a heat source for heating the process gas before the process gas enters the drying chamber and a heat sink for cooling the process gas after the process gas flows out of the drying chamber, and a heat sink arranged in the drying chamber Between the chamber and the heat sink there is a first lint filter for trapping lint from the process gas, to which the first cleaning device is assigned. The first cleaning device includes a collector for liquid, a first flushing line connected to the collector, a first control mechanism in the first flushing line and a first flushing line connected to the first flushing line. a first distributor on the line for distributing the liquid delivered through the first flushing line to the first lint filter and for receiving lint trapped by the first lint filter, for The first discharge device discharges the liquid containing the lint absorbed by the first lint filter to the collector. the

After cleaning the lint filter and/or the evaporator, the lint-laden liquid is collected in a collection pan before it is pumped into the flushing container. Pump operation is still susceptible to disturbance due to lint in the liquid. In order that at least the lint accumulated by cleaning the lint filter does not reach the collecting pan, a second lint filter is provided. the

Document EP 2 075 368 A1 relates to a method for removing condensate from a household appliance for washing laundry, wherein condensate accumulated during operation of the household appliance is collected in a collection container, wherein The level of the condensate collected in the collection container is monitored and when it exceeds a level threshold, a signal is generated as a reminder to carry out the condensate removal process or to initiate the condensate removal process. the

The object of the present invention is to provide a possibility for a more reliable operation of a laundry treatment appliance, in particular a laundry drying appliance. the

This task is solved according to the features of the independent claims. Preferred embodiments emerge especially from the subclaims as well as from the following description. the

This object is also solved by a laundry disposal device with a sieve receptacle for receiving a sieve, wherein at least one water level measuring device for measuring at least one water level on the sieve receptacle is assigned to the Filter receiver. the

Such a laundry disposal appliance has the advantage that the degree to which the sieve in the sieve receptacle is filled with lint, hair, etc. can be detected in a simple manner. Here, the laundry treatment appliance utilizes the fact that the more lint etc. is present in the sieve, the more difficult it is for the liquid flowing to the sieve to flow out again. In other words, the more a screen becomes clogged with lint, the less liquid will pass through that screen. That is, if liquid flows into the sieve receptacle and thus also into the sieve installed therein, the liquid level in the sieve receptacle rises. The more lint has accumulated in the strainer, the higher the maximum liquid can rise. In particular, a water level can be detected by means of the water level measuring device, which indicates the amount of lint in the sieve which corresponds to the sieve being filled or almost filled with lint (hereinafter also referred to as "limit water level"). As a result, the sieve can be pushed out and filled with lint etc. by simple level measurement. the

For a particularly simple preferred embodiment of the level measurement, a level sensor can be arranged on the inner side of the wall of the sieve receptacle. The level sensor sends out a signal if the water level rises up to the level of the level sensor. the

In a further preferred configuration, the filter receptacle is connected to an overflow chamber according to the communicating container principle, and at least one water level measuring device for measuring at least one water level of the overflow chamber is provided and arranged. This embodiment has the advantage that a water level measurement can be carried out with a particularly low error rate. Thus, for example, hydrodynamic properties (wave formation, sloshing, etc.) occur only attenuated in the overflow chamber. False detections of the water level measuring device due to liquid splashes are also avoided. False detections of the water level measuring device due to a soaked sieve can also be avoided. the

In a particularly preferred configuration, the overflow chamber has a lower through-opening arranged near the bottom of the overflow chamber, which lower through-opening connects the overflow chamber and the filter receptacle to the liquid flow. connect. This also enables reliable detection of low water levels. the

It is possible for the overflow chamber to be situated at a distance from the sieve receptacle and to be hydraulically connected thereto, for example via at least one fluid channel (pipe, hose, etc.). the

However, in a preferred embodiment for a compact and robust installation, the overflow chamber is located in the filter receptacle. As a result, the overflow chamber is integrated into the filter receptacle. the

In order that the overflow space is not blocked by lint, hair or other particles, the overflow space is preferably arranged outside of the area within the filter receptacle provided for receiving the filter. the

For the same purpose, the overflow chamber is preferably arranged lateral to the area provided for receiving the sieve. the

In particular, the filter receptacle can be subdivided into a filter receptacle chamber for receiving the filter mesh and an overflow chamber, wherein the two chambers are separated from one another by a partition wall. The partition wall can have a lower through-opening for exchanging liquid. Via this lower through-opening, liquid can flow from the sieve into the overflow chamber until the (level) liquid level in the sieve receiving chamber and in the overflow chamber reaches the same level, conversely, when in the sieve receiving chamber When the water level drops, it flows back into the filter screen again. The partition wall can have an upper vent opening for exchanging air in order to prevent air from becoming trapped in the overflow space. the

In yet another preferred embodiment, the overflow chamber has an overflow opening or an overflow channel leading to the at least one moisture sensor. The overflow opening of the overflow opening in the overflow chamber (with its lower edge) is arranged at a height corresponding to the limit water level. If the liquid reaches this level, the liquid flows through the overflow to at least one moisture sensor, which can output a corresponding signal when it is wetted. In this case, the water level measuring device can include, for example, an overflow and a moisture sensor. This development has the advantage that the actual sensors (humidity sensor etc.) can be arranged separately from the overflow chamber. In this way, the sensor can be easily replaced, and a sufficient installation space for the sensor can also be provided. the

Similarly, if no special overflow chamber is provided, the overflow opening can also be arranged directly in or on the filter receptacle. the

In a further preferred embodiment, at least one humidity sensor is arranged at least partially in the overflow chamber. This enables a particularly compact design. The at least one moisture sensor is arranged in such a way that it emits a signal when at least one limit water level is reached. the

A further preferred configuration is that the water level measuring device is functionally connected to a control device, wherein the control device is configured to trigger at least an action. the

The at least one action may comprise outputting an acoustic signal and/or an optical signal. The at least one action can also include outputting a reminder to the user, in particular via a display unit of the domestic appliance. The at least one action can also include switching off the domestic appliance and/or preventing a subsequent start of a process sequence, in particular a laundry treatment sequence. the

In a further preferred embodiment, a plurality of humidity sensors are arranged at least partially in the overflow chamber, which react to different levels of the liquid in the overflow chamber. the

In this way, a grading action can be triggered in each case depending on the water level reached by means of the moisture sensor. The household appliance can, for example, issue a warning to the user, e.g. in the form of "lint filter full, please replace/clean", when the first humidity sensor reacts to the lower water level being reached, but the higher second water level has not yet been reached . If a second, higher water level is reached and the corresponding second humidity sensor reacts accordingly, for example, a new laundry treatment process can additionally or alternatively be prevented, possibly simultaneously with "device switched off because the lint filter is full, Please replace" message. the

Alternatively, for example, different water levels can be detected by means of individual water level measuring devices, for example by means of floats. the

In a preferred embodiment, the water level measuring device has at least one humidity sensor. The humidity sensor can have, for example, a pair of electrodes. For example, the electrode pair can be under voltage for moisture detection, wherein the current flowing between the two electrodes is increased or only formed when the intermediate space between the two electrodes is filled with liquid. Current changes can be well detected and used for water level detection. In other words, an electrode pair can be checked (digitally or similarly) for its conductivity value. the

Alternatively or additionally, the water level measuring device can have a float arranged in the overflow chamber which is coupled to a foil sensor or foil switch or has such a device. the

The sieve can be, for example, a sieve or a strainer. The filter receptacle can also be designated accordingly as a filter holder or the like. The sieve or filter can be made of metal or fabric, for example. the

The liquid may be water, especially condensed water. the

In particular, the rinsing water can be conducted from the lint filter and/or the heat exchanger into the filter receptacle. the

The laundry treatment appliance can be configured such that the water level measurement is carried out (only) in connection with the cleaning process of the lint filter and/or the heat exchanger or registered as an action. In this way, the water level due to the rapid filling with a defined flushing volume can be detected, which results in a high determination accuracy. Conversely, the water level overrun due to the water level overrun in relation to the volume of the laundry and the moisture stored in the laundry can be ignored. the

The laundry treatment appliance can in particular be a laundry drying appliance, in particular a laundry dryer or a washer dryer (combined from a washing machine and a laundry dryer). the

This object is also solved by a method for determining a predetermined (with lint) filling degree of a lint filter of a laundry treatment appliance, wherein the method comprises at least the following steps: (i) filling or rinsing with liquid The lint filter; (ii) determining that the liquid in the lint filter reaches a predetermined (liquid) level corresponding to a predetermined degree of filling. That is, the method utilizes water level determination as a measure for the degree of filling. The correlation between water level and degree of filling can be determined experimentally or empirically, for example. the

In a preferred configuration, the step of determining that the predetermined water level has been reached includes determining a duration during which the predetermined water level is maintained to be reached. In other words, it is possible to specify a time period within which a predetermined water level must have been reached (or exceeded) in order to obtain or take into account the determination of the degree of filling, for example to trigger an action. This duration can be stored, for example, in the control device. This configuration has the advantage that short-term water level fluctuations, which may be caused, for example, by wave formation, can be ignored and only the "static" water level is considered. the

In a further preferred configuration, the predetermined water level is determined or determined by flushing the lint filter with a predetermined volume of liquid. In this way, a particularly accurate correlation between water level and filling degree can be achieved. the

In a particularly preferred configuration, the predetermined water level is carried out by flushing the lint filter with liquid from the cleaning process of the upstream (in particular in the process gas channel) lint filter and/or heat exchanger. ok. It is used here that the volume of liquid used to wash the upstream lint filter and/or the heat exchanger is well known. Liquid can be provided, for example, by (surging) emptying of a flushing container with a known volume. Since such a cleaning process can also be carried out periodically, the degree of filling of fluff etc. can also be regularly determined with little or no additional effort. the

A preferred development is that the step of affirmatively determining that the predetermined water level has been reached is followed by the step of performing an action. the

In the following figures, the invention is described in more detail with the aid of exemplary embodiments shown schematically in the figures. Here, for the sake of clarity, identical or identically acting elements may be designated with the same reference signs. The accompanying drawings show:

Figure 1 shows a sketch of a laundry treatment appliance configured as a laundry dryer;

2 is a side sectional view and a side view of a filter receiving portion of the laundry treating appliance according to the first embodiment;

Fig. 3 is a side sectional view of a filter receiver of a laundry treating appliance according to a second embodiment. the

As shown in FIG. 1 , the laundry treatment appliance, here a laundry dryer 1 , comprises a drying chamber 2 configured as a rotatable drum, which receives wet items, here laundry 3 , for drying. A closed process gas guide 4 is provided in which a process gas flow is circulated by a blower 5 , which absorbs and discharges moisture from the washing 3 . The process gas is heated in a heat source 6 before entering the drying chamber 2 . The process gas heated in this way, having absorbed moisture, flows around behind the washing 3 falling in the drying chamber due to the rotation of the drying chamber 2 , leaves the drying chamber 2 and reaches the heat sink 7 . The process gas is cooled here so that the entrained moisture condenses out, the condensate deposits as a liquid on the structure of the heat sink 7 and drips into the collecting pan 8 arranged below the heat sink. This condensate exits the collecting pan 8 via the pump line 9 into which a condensate pump 10 is coupled to the collector 11 . The collector 11 is configured in such a way that it can be removed from the dryer 1 after the drying process has been completed, in order to pour out the liquid from the collector and clean it up appropriately. the

Between the drying chamber 2 and the heat sink 7 a first lint filter 12 is arranged in the process gas conduction device 4 . This first lint filter 12 is necessary in order to intercept the lint (these are fine, dust-like fibrous particles and the like) which the flowing process gas picks up from the washing 3, so that the lint does not It reaches the heat sink 7 and contaminates it. This is required primarily because lint deposited on the correspondingly exposed surfaces of the heat sink 7 can significantly deteriorate the thermal conductivity of the structures inside the heat sink 7 , possibly impairing or even endangering the operation of the dryer 1 . Of course, the presence of the first lint filter 12 in the process gas conduction device 4 does not prevent possible damage, because if it becomes clogged with lint during the operation of the drying process, the first lint filter 12 in the In certain cases, significant flow obstructions in the process gas line 4 are also caused. the

In order to avoid this damage, and also to achieve a practical possibility of removing lint from the dryer 1, first cleaning devices 13, 14, 15 are assigned to the first lint filter 12, by means of which first cleaning devices can be The first lint filter 12 is freed of lint using the condensate stored in the collector 11 . To this end, a first flushing line 13 is connected to the collector 11 , which passes through a first control unit 14 to a first distributor 15 arranged on the first lint filter 12 , from which the The condensate can be distributed via the first distributor on the first lint filter 12 , whereby the condensate absorbs and discharges the lint accumulated on the first lint filter 12 . This lint-laden condensate passes through the drain 16 to the second lint filter 28, which traps the absorbed lint from the condensate, and the condensate then flows back to the collecting pan 8 so that From this collecting pan, the condensate pump 10 is used to convey it back to the collector 11 . In the second lint filter 28 , the lint accumulates as a compact, moist mass which can be removed and cleaned relatively easily from the second lint filter 28 . Alternatively, the lint filter 28 may be replaceable. the

The heat source 6 and the heat sink 7 are integrated in the presently shown embodiment into heat pumps 6, 7, 20, 21, 22 in which the heat extracted from the process gas in the heat sink 7 is pumped towards the heat source 6 and is in turn fed to the process gas at the heat source. For this purpose, a closed refrigerant circuit 20 is used, in which refrigerant circulates. A refrigerant refers to a substance capable of reversibly evaporating and condensing under suitable conditions in terms of pressure and temperature. Such substances may be propane, carbon dioxide or fluorinated hydrocarbons such as the known R134a, R152a, R407C and R410a, where the last two substances are mixtures of fluorinated hydrocarbons. In any case, the refrigerant in the refrigerant circuit 20 reaches the heat sink 7 in liquid form where it evaporates while absorbing heat from the process gas also flowing through it. The compressor 21 in the refrigerant circuit 20 compresses the evaporated refrigerant and sends the refrigerant to the heat source 6 . The refrigerant liquefies there by releasing heat to the process gas flowing through it. The refrigerant now flows in liquid form in the refrigerant circuit 20 to the restrictor 22 (represented by a valve, capillary or throttle plate), where it is relieved to a reduced pressure. In this form the refrigerant returns to the heat sink 7 to re-evaporate there. The refrigerant circuit 20 must be completely closed to ensure complete containment of the refrigerant for the expected operational life of the dryer 1 . the

In fact, the first lint filter 12 is not able to completely absorb the lint carried by the process gas; it is always taken into account that the very fine fraction of the lint successfully passes through the lint filter 12 without being caught by it . These fine flocks then settle more or less completely in the heat sink 7 , wherein condensation occurring there can cause the flock to adhere to correspondingly exposed surfaces of the heat sink 7 . This fluff (possibly through multiple drying processes in the dryer 1) can significantly impair the function of the heat sink 7. The present difficulty is that it is not possible to remove the heat sink 7 from the dryer 1 for cleaning purposes due to the need to completely seal the refrigerant circuit 20 . Accordingly, second cleaning devices 23 , 24 , 25 are assigned to the heat sink 7 , by means of which the condensate collected in the collector 11 can also be used in order to clean the surfaces of the heat sink 7 exposed to the process gas and Remove accumulated lint. To this end, a second flushing line 23 , which connects the collector 11 to a second distributor 25 positioned on the heat sink 7 , is assigned to the collector with the engaged second control mechanism 24 . Via this second distributor 25 , the condensate passes from the collector 11 to the heat sink 7 and can clean the lint deposited on the heat sink. This type of lint-loaded condensate drops into the collecting pan 8 and is transported from there to the collector 11 by means of the condensate pump 10 . Since the first lint filter 12 traps the majority of all lint, the heat sink 7 is only relatively lightly loaded and the lint that settles on the heat sink is relatively fine. This lint, especially hair, can still damage the condensate pump 10 over time. Condensate dripping from the heat sink 7 is thus also directed to the second lint filter 28 . the

The control mechanisms 14 and 24 are presently denoted as simple valves 14 or 24 respectively. In cases where a relatively strong flow of condensate is desired for corresponding cleaning purposes, a pump can additionally be provided for each such valve 14 or 24 . Optionally, a single pump can also be assigned to both valves 14 and 24 . the

A control device 26 is provided in the dryer 1 . The control device serves the user of the dryer 1 for selecting a program for the desired drying process from a plurality of offered programs, and the control device includes a display device for making the user see the necessary information , and also controls all controllable components of the dryer 1. For clarity, the corresponding control lines are not shown in FIG. 1 . the

The lint filter 28 is located in the pot-shaped filter receptacle 27 . The lint-laden condensate Kf used for cleaning the first lint filter 12 and the lint-laden condensate Kf dripping from the heat sink 7 in normal operation as a result of cleaning pass through the drain 16 flows into the open upper side of the sieve receptacle serving as an inlet. The essentially lint-free condensate Kr, which has been cleaned by means of the filter 28 , flows via an outlet 30 arranged on the floor into the collecting pan 8 . A water level measuring device 31 for measuring at least one water level of the sieve receptacle 27 is assigned to the sieve receptacle 27 . The water level measuring device 31 is connected to the control device 26 via a data line 32 , so that the measurement data generated by the water level measuring device 31 can be transmitted to the control device 26 and can be further processed and/or used there. If the water level measuring device 31 detects a predetermined condensate water level in the filter screen receiving part 27 or reacts to it, the control device 26 can trigger at least one action, for example. the

FIG. 2 shows the sieve receptacle 27 in detail in a side view as a sectional view. The sieve receptacle 27 is pot-shaped and has an open upper side 29 . A second lint filter 28 , for example also configured in the form of a pot, can be inserted through the open upper side 29 . During operation of the dryer 1 , the sieve receiver 27 and the second lint filter 28 are filled through the open upper side 29 , more precisely with the condensate Kf dripping from the heat sink 7 and/or with the drain The condensate Kf introduced by the device 16 is perfused. The second lint filter 28 acts as a flow resistance for the condensate Kf, so that the condensate Kf to be cleaned accumulates in the sieve receptacle 27 and in the second lint filter 28 . As a result, the condensate Kf has a water level P in the sieve receptacle 27 . The more lint and the like accumulated in the second lint filter 28, the higher the water level P can rise for a short time. In particular when cleaning the first lint filter 12 and/or when cleaning the heat pump, a certain condensate volume can be brought into the sieve receptacle 27 in a short period of time by opening the control means 14 , 24 , especially in a rush. At this moment, the temporarily reached maximum water level P can be regarded as a measure of the filling of the second lint filter 28, because firstly the flow resistance of the second lint filter 28 increases with the increasing amount of lint etc., and secondly Lint and the like occupy a large volume in the second lint filter 28 . This makes it possible (at least when washing) to correlate the water level P with the filling degree of fluff etc. in the second fluff filter 28 . the

The sieve receptacle 27 is subdivided into a sieve receptacle chamber 27 a for receiving a second lint filter 28 and an overflow chamber 27 b. The sieve receiving chamber 27 a and the overflow chamber 27 b are separated from one another by means of a partition wall 33 . The partition wall 33 has a lower through-opening 34 which fluidly connects the sieve receiving chamber 27 a and the overflow chamber 27 b and which is arranged in the vicinity of the bottom of the overflow chamber 27 b. Via the lower through opening 34, the condensate can flow from the sieve receiving chamber 27a via the second lint filter 28 into the overflow chamber 27b, up to (level) in the sieve receiving chamber 27a and in the overflow chamber 27b The water level P basically reaches the same height. The condensate flowing into the overflow chamber 27b is free of lint. Conversely, when the water level P in the sieve receiving chamber 27a falls, the condensate flows from the overflow chamber 27b back into the sieve receiving chamber 27a. The partition wall 33 can also have an upper vent opening 35 for exchanging air, in order to avoid air accumulation in the overflow chamber 27b. In this case, the upper air release opening 35 is formed with a blocking wall 36 to prevent splash water, waves, etc. from penetrating through the upper air release opening 35 . Thus, the filter screen receiving chamber 27a and the overflow chamber 27b are communicators. The water level P in the screen receiving chamber 27a is reflected in the overflow chamber 27b. The partition wall 33 also makes it possible for the dynamic behavior of the condensate in the sieve receiving chamber 27a to be transferred to the overflow chamber 27b only to a reduced degree. the

Above the lower through opening 34 , the overflow chamber 27 b has a tubular overflow opening 38 , the open end of which opens into the overflow chamber 27 b forming an overflow opening 39 . The overflow opening 38 is inclined downwards as viewed from the overflow chamber 27b. As a result, if the water level P reaches or exceeds the edge of the overflow opening 39 at the limit water level Pg, the condensate located in the overflow chamber 27 b at least partially enters the overflow opening 39 and flows out through the overflow opening 38 . The side of the overflow opening 38 facing away from the overflow chamber 27 b leads to a humidity sensor 40 . If condensate flows via the overflow opening 38 to the humidity sensor 40 , this sensor emits a signal. The overflow 38 and the humidity sensor 40 form a water level measuring device 38 , 40 which emits a signal when a limit water level Pg is reached or exceeded. The limit water level Pg can, for example (at least during washing) correspond to a full or almost full second lint filter 28 . the

Signaling (which can be detected by the control device 26 via the data line 32) via the humidity sensor 40 (possibly for a predetermined duration) the control device 26 can trigger at least one action, such as outputting a warning message and/or switching off the operation of the dryer. . If the humidity sensor 40 emits a signal each time or several times in the case of several consecutive, for example, successive cleaning processes, the control device 26 can also trigger an action only then. Arranging the moisture sensor 40 outside the filter receptacle 27 has the advantage that the moisture sensor 40 can be easily replaced and can also be freely oriented according to the situation. Several water level measuring devices 38 , 40 can also be arranged on the overflow chamber 27 b , for example at different heights. the

FIG. 3 shows a sieve receptacle 41 according to a second embodiment in side view as a sectional view, which can be used instead of the sieve receptacle 27 , for example. In contrast to the sieve receptacle 27 , the sieve receptacle 41 now has no overflow opening 38 . More precisely, three electrodes 42a, 42b and 42c are arranged in the overflow chamber 27b, which form two electrode pairs 42a, 42b or 42b, 42c. If the water level P (in the case of the limit water level Pg1) reaches the first electrode pair 42a, 42b ending at the same height, the current between the two electrodes 42a, 42b changes, which can be controlled directly or indirectly by the control device 26 (for example Sensed by current comparison means 43). The water level measuring device can be formed, for example, by three electrodes 42 a , 42 b and 42 c and a current comparison device 43 . the

If the water level P (in the case of the limit water level Pg2) also reaches the third electrode 42c located at a higher height, the current between the two electrodes 42b, 42c changes, which can also be sensed directly or indirectly by the control device 26 Measurement. Thereby, two different water levels P can be sensed as limit water levels Pg1 and Pg2 by means of the three electrodes 42a, 42b and 42c. Then the control device 26, for example, can trigger different actions, such as outputting a warning in the form of "the lint filter will be full, please change/clean" when reaching the limit water level Pg1 below, and outputting "" when reaching the limit water level Pg2 above. The lint filter is full, please replace/clean" and the dryer is switched off. the

Alternatively, it is also possible to use only one electrode pair, or also more than two electrode pairs, which can also be of different heights. the

Of course, the invention is not limited to the shown embodiments. That is, the filter receiver 27 may be filled only with the condensate dripped from the heat sink 7 . The condensate used for cleaning by the first lint filter 12 can, for example, be filtered by means of its own lint filter, as shown in WO 2010/028992 A1. The sieve receiver 27 can also be filled only with the condensate that flows out of the first lint filter 12 . The filter receptacle 27 can then take over the function of a second lint filter such as is shown in WO 2010/028992 A1. The shapes of the filter receiver and the filter are not limited to the illustrated shapes, either. Strainers and filters can be used replaceably. the

List of reference signs

1 dryer

2 drying room

3 wet items, laundry

4 Process gas guiding device

5 blower

6 heat source

7 heat sink

8 collection tray

9 pump line

10 Condensate pump

11 First cleaning device, collector

12 First lint filter

13 The first cleaning device, the first flushing line

14 The first cleaning device, the first control mechanism

15 First cleaning unit, first dispenser

16 First cleaning device, discharge device

20 Refrigerant circuit

21 compressor

22 Throttle

23 Second flushing line

24 Second control mechanism

25 second dispenser

26 Control device

27 Filter receiving part

27a Filter receiving chamber

27b overflow cavity

28 Second lint filter

29 Upper side of the filter receiver

30 exit

31 Water level measuring device

32 data line

33 partition wall

34 through opening

35 Vent opening

36 retaining wall

38 overflow port

39 overflow opening

40 humidity sensor

41 Filter receiving part

42a electrode

42b electrode

42c electrode

43 current comparator device

Kf Condensate with fluff

Kr Condensate without lint

P water level

Pg limit water level

Pg1 limit water level

Pg2 limit water level

Claims (13)

1. washed articles treater tool (1) has a filter screen acceptance division (27 that has a lint filter screen (28); 41), it is characterized in that described filter screen acceptance division (27; 41) attach troops to a unit and have at least one to be used to measure this filter screen acceptance division (27; 41) at least one the height of water level (Pg on; Pg1, level measurement device (31 Pg2); 38,40; 42a-c, 43), wherein, described level measurement device (31; 38,40; 42a-c, 43) be connected in function with a control device (26), this control device (26) is provided for, wash described lint filter screen (28) with the liquid (Kf) with predetermined, and determine to reach at least one predetermined water level (Pg of the liquid (Kf) in this lint filter screen (28); Pg1, Pg2), this predetermined water level is corresponding to a predetermined lint compactedness.

2. according to the washed articles treater tool (1) of claim 1, wherein, described filter screen acceptance division (27,27a; 41) principle according to linker is connected with a spill cavity (27b), and described at least one level measurement device (38,40; 42a-c, 43) arrange and arrange at least one the water level (Pg that measures this spill cavity (27b); Pg1, Pg2).

3. according to the washed articles treater tool (1) of claim 2, wherein, described spill cavity (27b) has a near end pass through openings (34), the bottom that is arranged in this spill cavity (27b), and the pass through openings of this bottom is connected with described filter screen acceptance division (27a) this spill cavity (27b) at flowing relation.

4. according to each washed articles treater tool (1) in claim 2 and 3, wherein, a plurality of humidity sensors are arranged in the described spill cavity (27b) at least in part, and these humidity sensors are reacted to the different water levels of the liquid in this spill cavity (27b).

5. according to each washed articles treater tool (1) in the claim 2 to 4, wherein, described spill cavity (27b) is positioned at described filter screen acceptance division (27; 41) in.

6. according to each washed articles treater tool (1) in the claim 2 to 5, wherein, described spill cavity (27b) has an overfall (38), and this overfall leads at least one humidity sensor (40).

7. according to each washed articles treater tool in the claim 2 to 6, wherein, at least one humidity sensor (42a-c) is arranged in the described spill cavity (27b) at least in part.

8. each washed articles treater tool (1) in requiring according to aforesaid right, wherein, described washed articles treater tool (1) is provided for, in order to determine to reach described at least one predetermined water level (Pg; Pg1 Pg2) determines a duration, keeps reaching this at least one predetermined water level (Pg in this duration; Pg1, Pg2).

9. each washed articles treater tool (1) in requiring according to aforesaid right, wherein, described control device (26) is provided for, based on described at least one level measurement device (31; 38,40; 42a-c, 43) at least one measurement and trigger at least one action of described washed articles treater tool (1).

10. be used for the method for operation washed articles treater tool (1), this washed articles treater tool has the filter screen acceptance division (27 of band lint filter screen (28); 41), wherein, described filter screen acceptance division (27; 41) attach troops to a unit and have at least one to be used to measure this filter screen acceptance division (27; 41) at least one the height of water level (Pg on; Pg1, level measurement device (31 Pg2); 38,40; 42a-c, 43), this method may further comprise the steps at least:

-wash described lint filter screen (28) with the liquid (Kf) with predetermined volume;

-determine that the liquid (Kf) in this lint filter screen (28) reaches at least one predetermined water level (Pg; Pg1, Pg2), this water level is equivalent to a predetermined lint compactedness.

11. according to the method for claim 10, wherein, determine to reach described at least one predetermined water level (Pg; Pg1, step Pg2) comprises determines a duration, keeps reaching this predetermined water level (Pg in this duration; Pg1, Pg2).

12. according to each method in claim 10 or 11, wherein, determine to reach described at least one predetermined water level (Pg; Pg1, step Pg2) comprises determines to reach a plurality of predetermined water level (Pg; Pg1, Pg2).

13. according to each method in the claim 10 to 12, wherein, described predetermined water level (Pg; Pg1, determining by means of carrying out with liquid (Kf) the described lint filter screen of flushing (28) from the flushing process of the lint filter screen (12) of upstream and/or heat exchanger (7) Pg2).

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