Laundry device comprising diffuser

Abstract

A laundry device comprising at least one fluid diffuser configured to be able to deliver pumped water onto an evaporator to flush impurities, in particular lint, from the evaporator into a collection container, the at least one fluid diffuser comprising an internal flow channel for directing the pumped water, the flow channel comprises an inlet portion through which the pumped water enters the at least one fluid diffuser, flows through the middle portion in the flow direction and exits the at least one fluid diffuser through the outlet portion, and a middle portion in which a recess is formed at the bottom wall of the flow channel, the recess extends over a first width of the flow channel between the two side walls of the flow channel, downstream of the recess, in the outlet portion, an uplift of the bottom wall is formed in the flow channel, and the uplift of the bottom wall extends over the first width of the flow channel. The uplift is adapted to block the pumped water and allow the pumped water to flow through the uplift along a second width of the flow channel between the two sidewalls of the flow channel.

Description

Technical Field

[0001] The present invention relates to a laundry device including a diffuser, and particularly to a dryer or a washer-dryer including a diffuser. Background Art

[0002] In a conventional laundry device (such as a dryer or a washer-dryer), wet laundry is introduced into a laundry drum. During drying, the liquid content of the wet laundry must be reduced, for example, by removing the liquid from the laundry. Generally, in a conventional laundry device, particularly in a conventional laundry device having a heat pump, an evaporator provided with a heat exchange mechanism is provided to reduce the humidity of the circulating air during the drying process. During the drying process, impurities of the laundry, such as lint, are mixed in the circulating air and accumulate on the evaporator, thereby reducing the efficiency of the heat exchange mechanism and the efficiency of the laundry drying process. Summary of the Invention

[0003] Therefore, an object of the present invention is to provide a laundry device, particularly a dryer or a washer-dryer, which allows efficient drying of laundry.

[0004] The above object is achieved by the features of the independent claims. The subject matters of the dependent claims, the description and the drawings are advantageous specific embodiments.

[0005] According to a first aspect, the present invention relates to a clothing device, wherein the clothing device includes a drying chamber and an air passage. The drying chamber is used for drying clothes. The air passage is connected to the drying chamber via an air inlet and an air outlet. The air inlet is configured to send air from the drying chamber into the air passage, and the air outlet is configured to send air from the air passage back into the drying chamber. An evaporator is arranged downstream of the air inlet in the air passage. The evaporator is configured to be able to cool the air supplied by the air inlet to condense water at the evaporator during the cooling of the air. Impurities in the air, especially lint, are deposited at the evaporator. The clothing device includes a collection container, which is arranged below the evaporator. The collection container is configured to collect the condensed water of the evaporator. The collection container is fluidly connected to at least one fluid diffuser arranged above the evaporator via a pumping pipeline. The clothing device includes a pump, which is configured to be able to pump the water collected in the collection container via the pumping pipeline into at least one fluid diffuser. The at least one fluid diffuser is configured to be able to send the pumped water onto the evaporator to wash impurities, especially lint, from the evaporator into the collection container. The at least one fluid diffuser includes an internal flow channel for guiding the pumped water. The flow channel includes an inlet portion, a middle portion, and an outlet portion. The pumped water enters the at least one fluid diffuser through the inlet portion, flows through the middle portion in the flow direction, and leaves the at least one diffuser through the outlet portion. Wherein, in the middle portion, a recess is formed at the bottom wall of the flow channel. The recess extends above a first width of the flow channel between the two side walls of the flow channel. Downstream of the recess, in the outlet portion, a raised portion of the bottom wall is formed in the flow channel. The raised portion is adapted to block the pumped water and allow the pumped water to flow through the raised portion along a second width of the flow channel between the two side walls of the flow channel.

[0006] Therefore, the pumped water can be evenly distributed along the second width of the flow channel at the raised portion and can flow evenly through the raised portion. Therefore, impurities, especially lint, can be efficiently washed from the evaporator into the collection container.

[0007] The controller of the clothing device can be configured to be able to open the valve of the pump-out pipeline and start the pump to pump the water together with impurities, especially lint, out of the collection container through the pump-out pipeline.

[0008] The clothing device according to the present invention especially refers to a clothing device suitable for drying clothes, especially for drying clothes by removing or at least significantly reducing the water content attached to the clothes. In particular, the clothing device according to the present invention is a clothes dryer, which is suitable for drying clothes. More specifically, the clothing device according to the present invention is a heat pump tumble dryer.

[0009] According to one embodiment, a fan is arranged in an air passage, and the fan is configured to be able to send air from an air inlet into the air passage and send it out from an air outlet.

[0010] Therefore, air can be efficiently conveyed through the air passage. The fan can be arranged in the air inlet.

[0011] According to one embodiment, an evaporator is arranged in the heat cycle of a heat pump, and a cooling medium circulates in the heat cycle of the heat pump. The cooling medium is configured to be able to cool the evaporator.

[0012] Therefore, the evaporator can operate efficiently. The heat cycle may further include a condenser, a compressor, and an expansion valve. The condenser is used to heat air, the compressor is used to increase the temperature and pressure of the cooling medium, and the expansion valve is used to reduce the temperature and pressure of the cooling medium. The expansion valve can be arranged downstream of the condenser in the heat cycle. The evaporator can be arranged downstream of the expansion valve in the heat cycle. The compressor can be arranged downstream of the evaporator in the heat cycle. The condenser can be arranged downstream of the compressor in the heat cycle.

[0013] According to one embodiment, at least one fluid diffuser includes a first fluid diffuser and another first fluid diffuser. The first fluid diffuser is arranged above a part of the evaporator, and the other first fluid diffuser is arranged above another part of the evaporator. The first fluid diffuser is configured to be able to send pumped water onto the part of the evaporator to wash impurities, especially fluff, from the part of the evaporator into a collection container. The other first fluid diffuser is configured to be able to send pumped water onto the other part of the evaporator to wash impurities, especially fluff, from the other part of the evaporator into the collection container. A first valve is arranged in the pumping pipeline. In the first state of the first valve, the pumping pipeline is connected to the first fluid diffuser, and in the second state of the first valve, the pumping pipeline is connected to the other first fluid diffuser.

[0014] Therefore, a more efficient evaporator (i.e., an evaporator with a larger size) can be efficiently used in a laundry device. The first valve can be controlled by a controller of the laundry device to wash different parts of the evaporator.

[0015] According to one embodiment, at least one fluid diffuser includes a first fluid diffuser disposed above the evaporator and configured to pump water onto the evaporator to flush impurities, particularly lint, from the evaporator into a collection container. A condenser is disposed in an air passage downstream of the evaporator and configured to heat air cooled by the evaporator. Other impurities of the air, particularly other lint, are deposited at the condenser. The collection container is disposed below the evaporator and the condenser. At least one fluid diffuser includes a second fluid diffuser disposed above the condenser and configured to pump water onto the condenser to flush other impurities, particularly other lint, from the condenser into the collection container.

[0016] Therefore, the efficiency of the condenser can also be improved by removing other impurities, particularly other lint, from the condenser. The valve can be controlled by a controller of the laundry device to switch between flushing the condenser and flushing the evaporator.

[0017] According to one embodiment, the condenser is disposed in a heat cycle of a heat pump, and a cooling medium circulates in the heat cycle of the heat pump, and the cooling medium is configured to heat the condenser.

[0018] Therefore, the condenser can operate efficiently. The heat cycle may further include a compressor and an expansion valve. The compressor is used to increase the temperature and pressure of the cooling medium, and the expansion valve is used to reduce the temperature and pressure of the cooling medium. The expansion valve may be disposed downstream of the condenser in the heat cycle. The evaporator may be disposed downstream of the expansion valve in the heat cycle. The compressor may be disposed downstream of the evaporator in the heat cycle. The condenser may be disposed downstream of the compressor in the heat cycle.

[0019] According to one embodiment, at least one fluid diffuser includes a second fluid diffuser and another second fluid diffuser. The second fluid diffuser is disposed above a part of the condenser, and the another second fluid diffuser is disposed above another part of the condenser. The second fluid diffuser is configured to pump water onto the part of the condenser to flush impurities, particularly lint, from the part of the condenser into the collection container. The another second fluid diffuser is configured to pump water onto the another part of the condenser to flush impurities, particularly lint, from the another part of the condenser into the collection container. A second valve is disposed in the pumping pipeline. In a first state of the second valve, the pumping pipeline is connected to the second fluid diffuser, and in a second state of the second valve, the pumping pipeline is connected to the another second fluid diffuser.

[0020] Therefore, a more efficient condenser (i.e., a larger-sized condenser) can be efficiently used in the laundry device. The second valve can be controlled by a controller of the laundry device to flush different parts of the condenser.

[0021] According to one embodiment, a first width of the flow channel is less than a second width of the flow channel. In particular, the width of the flow channel continuously increases from the first width to the second width in the flow direction.

[0022] Therefore, the pumped water can efficiently flow in the flow channel from the first width to the second width in the flow direction.

[0023] According to one embodiment, the flow channel has a third width between two side walls of the flow channel at the inlet portion, and the third width is less than the first width. In particular, the width of the flow channel continuously increases from the third width to the first width in the flow direction.

[0024] Therefore, the pumped water can efficiently flow in the flow channel from the third width to the first width in the flow direction.

[0025] According to one embodiment, the flow channel has a first height between a bottom wall of the flow channel and a top wall of the flow channel at the inlet portion, and the flow channel has a second height between the bottom wall of the flow channel and the top wall of the flow channel in an intermediate portion of the flow channel upstream of the recess. The second height of the flow channel is less than the first height of the flow channel. In particular, the height of the flow channel continuously decreases from the first height to the second height in the flow direction.

[0026] Therefore, the pumped water can efficiently flow in the flow channel from the first height to the second height in the flow direction. The first height may be the maximum height between the bottom wall of the flow channel and the top wall of the flow channel at the inlet portion. The second height may be the minimum height between the bottom wall of the flow channel and the top wall of the flow channel in the intermediate portion upstream of the recess.

[0027] According to one embodiment, the flow channel has a second height between a bottom wall of the flow channel and a top wall of the flow channel in an intermediate portion of the flow channel upstream of the recess, and the flow channel has a third height between the bottom wall of the recess and the top wall of the flow channel. The second height of the flow channel is less than the third height of the flow channel. In particular, the height of the flow channel continuously increases from the second height to the third height in the flow direction.

[0028] Therefore, the pumped water can efficiently flow in the flow channel from the second height to the third height in the flow direction. The second height may be the minimum height between the bottom wall of the flow channel and the top wall of the flow channel in the intermediate portion upstream of the recess. The third height may be the maximum height between the bottom wall of the recess and the top wall of the flow channel.

[0029] According to one embodiment, the top wall of the flow channel is parallel to the bottom wall of the recess along a part of the intermediate portion.

[0030] Therefore, the pumped water can efficiently flow in the recess in the flow direction in the flow channel.

[0031] According to one embodiment, the flow channel has a fourth height between the bottom wall and the top wall of the flow channel at the raised portion, the flow channel has a third height between the bottom wall and the top wall of the flow channel in the recess, the fourth height of the flow channel is less than the third height of the flow channel, and in particular, the height of the flow channel continuously decreases from the third height to the fourth height in the flow direction.

[0032] Therefore, the pumped water can efficiently flow from the third height to the fourth height in the flow direction in the flow channel. The third height can be the maximum height between the bottom wall and the top wall of the flow channel in the recess. The fourth height can be the minimum height between the bottom wall and the top wall of the flow channel at the raised portion of the outlet portion.

[0033] According to one embodiment, the outlet portion includes a water outlet channel extending downward, and the width of the water outlet channel between the two side walls of the flow channel at the outlet portion corresponds to the second width of the flow channel.

[0034] Therefore, the pumped water can efficiently flow through the outlet portion in the flow channel and flow out of at least one fluid diffuser above the evaporator, and in particular, above the condenser.

[0035] According to one embodiment, the flow channel and the water outlet channel are arranged at an angle between 80° and 100°, in particular 90°, with respect to each other, and / or the flow channel and the water outlet channel are connected by a rounded edge.

[0036] Therefore, the pumped water can efficiently flow out of the outlet portion of the flow channel. The rounded edge can be adjacent to the raised portion, and in particular, the raised portion can be incorporated into the rounded edge.

[0037] According to one embodiment, the recess is formed as a concave recess in the flow channel.

[0038] Therefore, the pumped water can efficiently flow in the recess in the flow direction in the flow channel.

[0039] According to one embodiment, the recess extends over the entire first width of the flow channel between the two side walls of the flow channel, and / or the raised portion is adapted to allow the pumped water to flow through the raised portion along the entire second width of the flow channel between the two side walls of the flow channel.

[0040] Therefore, the pumped water can efficiently flow in the recess in the flow direction in the flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The principles of the present invention and further examples of the technology are explained in more detail with reference to the accompanying drawings, in which:

[0042] Figure 1 Shows a schematic view of a laundry device according to an embodiment;

[0043] Figure 2 Shows a schematic view of an air passage of a laundry device according to an embodiment;

[0044] Figure 3a Schematically shows a top view of a fluid diffuser of a laundry device according to an embodiment;

[0045] Figure 3b Schematically shows Figure 3a a 3D view of the fluid diffuser shown in

[0046] Figure 3c and Figure 3d Schematically shows Figure 3a a cross-sectional view of the fluid diffuser shown in ; and

[0047] Figure 4 Shows a water distribution diagram of water flowing through the diffuser at the outlet portion of a laundry device according to an embodiment. Detailed Description

[0048] Figure 1 Shows a schematic view of a laundry device 100 according to an embodiment.

[0049] The laundry device 100, only schematically shown in Figure 1 , includes a schematically shown drying chamber 101 for drying laundry, which can be arranged in the internal space of the laundry device 100. During a drying program of the laundry device 100 for performing a laundry treatment process, wet laundry that can be received in the drying chamber 101 can be processed, and then the user can take out the processed laundry from the drying chamber 101. During the drying program, the laundry can release moisture and impurities, especially lint, into the air in the drying chamber 101.

[0050] In addition, as Figure 1 shown, the laundry device 100 includes an air passage 103. The air passage 103 is connected to the drying chamber 101 via an air inlet 105 and an air outlet 107. The air inlet 105 is configured to send air from the drying chamber 101 into the air passage 103. The air outlet 107 is configured to send air from the air passage 103 back into the drying chamber 101. A fan 127 can be arranged in the air passage 103, and the fan 127 is configured to be able to send the air from the air inlet 105 into the air passage 103 and send it out from the air outlet 107.

[0051] The evaporator 109 is arranged downstream of the air inlet 105 in the air passage 103. The evaporator 109 can be arranged in the heat cycle of a heat pump, in which a cooling medium circulates in the heat cycle of the heat pump, and the cooling medium is configured to be able to cool the evaporator 109. The evaporator 109 is configured to be able to cool the air supplied by the air inlet 105 to condense out water at the evaporator 109 during air cooling. Impurities in the air, especially fluff, deposit at the evaporator 109.

[0052] The laundry device 100 includes a collection container 111, and the collection container 111 is arranged below the evaporator 109. The collection container 111 is configured to be able to collect the condensed water of the evaporator 109. The collection container 111 is fluidly connected via a pumping pipeline 113 to at least one fluid diffuser 115-1, 115-2 arranged above the evaporator 109.

[0053] At least one fluid diffuser 115-1, 115-2 may include a first fluid diffuser 115-1, and the first fluid diffuser 115-1 is arranged above the evaporator 109 and is configured to be able to send the pumped water onto the evaporator 109 to wash impurities, especially fluff, from the evaporator 109 into the collection container 111.

[0054] The condenser 125 can be arranged in the air passage 103 downstream of the evaporator 109. The condenser 125 can be configured to be able to heat the air cooled by the evaporator 109. Other impurities in the air, especially other fluff, can deposit at the condenser 125. The collection container 111 can be arranged below the evaporator 109 and the condenser 125. At least one fluid diffuser 115-1, 115-2 may include a second fluid diffuser 115-2, and the second fluid diffuser 115-2 is arranged above the condenser 125 and is configured to be able to send the pumped water onto the condenser 125 to wash the other impurities, especially other fluff, from the condenser 125 into the collection container 111.

[0055] The condenser 125 can be arranged in the heat cycle of the heat pump. The cooling medium can be configured to be able to heat the condenser 125.

[0056] The laundry device 100 includes a pump 119, and the pump 119 is configured to be able to pump the water collected in the collection container 111 via the pumping pipeline 113 into at least one fluid diffuser 115-1, 115-2. At least one fluid diffuser 115-1, 115-2 is configured to be able to send the pumped water onto the evaporator 109 to wash impurities, especially fluff, from the evaporator 109 into the collection container 111. The pump-out pipeline 114 can be fluidly connected to the collection container 111 to transfer water and impurities, especially fluff, from the collection container 111 to the discharge system 116.

[0057] The laundry device 100 may include a controller 117. During the drying program of the laundry device 100 or at the end of the drying program of the laundry device 100, the controller 117 may be configured to be able to start the pump 119 to pump the water collected in the collection container 111 through the pumping pipeline 113 to at least one of the fluid diffusers 115-1 and 115-2. The controller 117 may be configured to be able to start the pump 119 to pump the water collected in the collection container 111 through the pumping pipeline 113 to at least one of the fluid diffusers 115-1 and 115-2 when the humidity level of the clothes accommodated in the drying chamber 101 drops below a predetermined humidity level threshold during the drying program of the laundry device 100.

[0058] Figure 2 A schematic diagram of the air passage 103 of the laundry device 100 according to an embodiment is shown. The laundry device 100 may be Figure 1 of the laundry device 100. As Figure 1 shown, the laundry device 100 includes a drying chamber 101, an evaporator 109, at least one fluid diffuser 115-1, an air inlet 105, an air outlet 107, a fan 127, a condenser 125, and a collection container 111.

[0059] Figure 2 The air flow direction 103-1 of the air in the air passage 103 is schematically shown. The warm and humid air from the drying chamber 101 enters the air passage 103 through the air inlet 105 (the fan 127 may be arranged in the air passage 103), and then passes through the evaporator 109. At the evaporator 109, the air is cooled, and the humidity level of the air is reduced by the condensation of water on the evaporator 109. Then the air passes through the condenser 125, where the air is heated again. Then, the air enters the drying chamber 101 through the air outlet 107 ( Figure 2 not shown in).

[0060] In addition, as Figure 2 shown, the collection container 111 may be arranged under the evaporator 109 and the air passage 103 to collect the water condensed at the evaporator 109 and the pumped water flushed by at least one of the fluid diffusers 115-1. The collection container 111 may include an opening 111-1 for feeding the condensed water and the pumped water into the collection container 111.

[0061] Figure 3a A top view of the fluid diffusers 115-1 and 115-2 of the laundry device 100 according to an embodiment is schematically shown. Figure 3b A 3D view of the fluid diffusers 115-1 and 115-2 is schematically shown, and Figure 3c and Figure 3dA cross-sectional view of fluid diffusers 115-1 and 115-2 is schematically shown. The laundry device 100 can be the laundry device 100 of Figure 1 . Hereinafter, reference will be made to Figures 3a - 3d to describe the fluid diffusers 115-1 and 115-2.

[0062] At least one of the fluid diffusers 115-1 and 115-2 includes an internal flow channel 121 for guiding the pumped water. The flow channel 121 includes an inlet portion 129, an intermediate portion 131, and an outlet portion 133. The pumped water enters at least one of the fluid diffusers 115-1 and 115-2 through the inlet portion 129, flows through the intermediate portion 131 along the flow direction 121-1, and exits at least one of the fluid diffusers 115-1 and 115-2 through the outlet portion 133.

[0063] In the intermediate portion 131, a recess 123 is formed at the bottom wall 137 of the flow channel 121. The recess 123 extends above a first width 141 of the flow channel 121 between the two side walls 122-1 and 122-2 of the flow channel 121, particularly above the entire first width 141 of the flow channel 121.

[0064] The top wall 149 of the flow channel 121 can be parallel to the bottom wall of the recess 123 along a part of the intermediate portion 131. Alternatively, the recess 123 can be formed as a concave recess in the flow channel 121.

[0065] Downstream of the recess 123, in the outlet portion 133, a raised portion 139 of the bottom wall 137 can be formed in the flow channel 121. The raised portion 139 is adapted to block the pumped water and allow the pumped water to flow through the raised portion 139 along a second width 143 of the flow channel 121 between the two side walls 122-1 and 122-2 of the flow channel 121, particularly along the entire second width 143 of the flow channel 121.

[0066] The flow channel 121 can have a third width 145 between the two side walls 122-1 and 122-2 of the flow channel 121 at the inlet portion 129. The third width 145 can be smaller than the first width 141, particularly the width of the flow channel 121 can continuously increase from the third width 145 to the first width 141 along the flow direction 121-1.

[0067] The first width 141 of the flow channel 121 can be smaller than the second width 143 of the flow channel 121. In particular, the width of the flow channel 121 can continuously increase from the first width 141 to the second width 143 along the flow direction 121-1.

[0068] The flow channel 121 may have a first height 147 between the bottom wall 137 and the top wall 149 of the flow channel 121 at the inlet portion 129. The flow channel 121 may have a second height 151 between the bottom wall 137 and the top wall 149 of the flow channel 121 in the middle portion 131 of the flow channel located upstream of the recess 123. The second height 151 of the flow channel 121 may be less than the first height 147 of the flow channel 121. In particular, the height of the flow channel 121 may continuously decrease from the first height 147 to the second height 151 along the flow direction 121-1.

[0069] The flow channel 121 may have a third height 153 between the bottom wall 137 of the recess 123 and the top wall 149 of the flow channel 121. The second height 151 of the flow channel 121 may be less than the third height 153 of the flow channel 121. In particular, the height of the flow channel 121 may continuously increase from the second height 151 to the third height 153 along the flow direction 121-1.

[0070] The flow channel 121 may have a fourth height 155 between the bottom wall 137 and the top wall 149 of the flow channel 121 at the raised portion 139. The fourth height 155 of the flow channel 121 may be less than the third height 153 of the flow channel 121. In particular, the height of the flow channel 121 may continuously decrease from the third height 153 to the fourth height 155 along the flow direction 121-1.

[0071] The outlet portion 133 may include a downwardly extending water outlet channel 135. The width of the water outlet channel 135 between the two side walls of the flow channel 121 at the outlet portion 133 may correspond to the second width 143 of the flow channel 121. The flow channel 121 and the water outlet channel 135 may be arranged at an angle between 80° and 100° (in particular 90°) with respect to each other and / or the flow channel 121 and the water outlet channel 135 may be connected by rounded edges.

[0072] Figure 4 A water distribution diagram of water flowing through at least one fluid diffuser 115-1, 115-2 at the outlet portion 133 ( Figures 3a - 3d as shown) of a laundry device 100 according to an embodiment is shown. The abscissa shows different measurement points along the second width 143 ( Figures 3a - 3b as shown), and the ordinate shows the water flow rate value in g / mm / 30sec.

[0073] The first curve 157 shows the water distribution of a conventional diffuser. The second curve 159 shows the theoretically optimal water distribution. By comparing the first curve 157 with the second curve 159, it can be seen that the conventional diffuser has a non-uniform water flow distribution, especially at the outer measurement points near the side walls of the diffuser.

[0074] The third curve 161 shows the water distribution of water flowing through at least one fluid diffuser 115-1, 115-2 at the outlet portion 133 of the laundry apparatus 100. By comparing the third curve 161 with the second curve 159 and the first curve 157, it can be seen that, compared with the conventional diffuser, at least one fluid diffuser 115-1, 115-2 has a more uniform water flow distribution and is closer to the theoretically optimal water distribution.

[0075] List of Reference Numerals

[0076] 100 Laundry apparatus

[0077] 101 Drying chamber

[0078] 103 Air passage

[0079] 103-1 Air flow direction in the air passage

[0080] 105 Air inlet

[0081] 107 Air outlet

[0082] 109 Evaporator

[0083] 111 Collection container

[0084] 111-1 Opening

[0085] 113 Pumping pipeline

[0086] 114 Pump-out pipeline

[0087] 115-1 First fluid diffuser

[0088] 115-2 Second fluid diffuser

[0089] 116 Discharge system

[0090] 117 Controller

[0091] 119 Pump

[0092] 121 Flow channel

[0093] 121-1 Flow direction in the flow channel

[0094] 122-1 First side wall

[0095] 122-2 Second side wall

[0096] 123 recess

[0097] 125 condenser

[0098] 127 fan

[0099] 129 inlet section

[0100] 131 middle section

[0101] 133 outlet section

[0102] 135 water outlet channel

[0103] 137 bottom wall

[0104] 139 lifting part

[0105] 141 first width

[0106] 143 second width

[0107] 145 third width

[0108] 147 first height

[0109] 149 top wall

[0110] 151 second height

[0111] 153 third height

[0112] 155 fourth height

[0113] 157 first curve

[0114] 159 second curve

[0115] 161 third curve

Claims

1. A laundry device (100), wherein: The laundry device (100) comprises a drying chamber (101) and an air passage (103), wherein the drying chamber (101) is used for drying laundry, the air passage (103) is connected to the drying chamber (101) via an air inlet (105) and an air outlet (107), the air inlet (105) being configured to deliver air from the drying chamber (101) to the air passage (103), the air outlet (107) being configured to deliver air from the air passage (103) back to the drying chamber (101), an evaporator (109) being arranged downstream of the air inlet (105) in the air passage (103), The evaporator (109) is configured to cool the air supplied by the air inlet (105) to condense water at the evaporator (109) during the cooling of the air, and impurities in the air, in particular fluff, are deposited at the evaporator (109). The laundry device (100) comprises a collecting container (111), which is arranged below the evaporator (109). The collecting container (111) is configured to collect condensed water of the evaporator (109). The collecting container (111) is fluidically connected to at least one fluid diffuser (115-1, 115-2) arranged above the evaporator (109) via a pumping line (113). The laundry device (100) comprises a pump (119), wherein the pump (119) is configured to pump water collected in a collection container (111) to at least one fluid diffuser (115-1, 115-2) via a pumping line (113), and the at least one fluid diffuser (115-1, 115-2) is configured to send the pumped water to an evaporator (109) to flush impurities, in particular fluff, from the evaporator (109) into the collection container (111). wherein at least one fluid diffuser (115-1, 115-2) comprises an internal flow channel (121) for guiding pumped water, the flow channel (121) comprising an inlet portion (129), a middle portion (131) and an outlet portion (133), the pumped water enters the at least one fluid diffuser (115-1, 115-2) through the inlet portion (129), flows through the middle portion (131) in a flow direction and leaves the at least one fluid diffuser (115-1, 115-2) through the outlet portion (133), The invention is characterized in that, in the middle part (131), a recess (123) is formed at the bottom wall (137) of the flow channel (121), and the recess (123) extends above the first width (141) of the flow channel (121) between the two side walls (122-1, 122-2) of the flow channel (121); downstream of the recess (123), in the outlet part (133), a raised portion (139) of the bottom wall (137) is formed in the flow channel (121), and the raised portion (139) is suitable for blocking the pumped water and allowing the pumped water to flow through the raised portion (139) along the second width (143) of the flow channel (121) between the two side walls (122-1, 122-2) of the flow channel (121).

2. The laundry device (100) according to claim 1, wherein: The fan (127) is arranged in the air passage (103), and the fan (127) is configured to send air from the air inlet (105) into the air passage (103) and send air out from the air outlet (107).

3. The laundry device (100) according to claim 1 or 2, wherein: The evaporator (109) is arranged in a thermal cycle of the heat pump, a cooling medium circulates in the thermal cycle of the heat pump, and the cooling medium is configured to be able to cool the evaporator (109).

4. The laundry device (100) according to any one of the preceding claims, wherein At least one fluid diffuser (115-1, 115-2) comprises a first fluid diffuser (115-1) arranged above the evaporator (109) and configured to deliver pumped water to the evaporator (109) to flush impurities, in particular fluff, from the evaporator (109) into a collection container (111), The condenser (125) is arranged in the air channel (103) downstream of the evaporator (109), and the condenser (125) is configured to heat the air cooled by the evaporator (109), and other impurities, especially other fluff, in the air are deposited at the condenser (125). The collecting container (111) is arranged below the evaporator (109) and the condenser (125). At least one fluid diffuser (115-1, 115-2) includes a second fluid diffuser (115-2), and the second fluid diffuser (115-2) is arranged above the condenser (125) and is configured to deliver pumped water to the condenser (125) to flush other impurities, especially other fluff, from the condenser (125) into the collecting container (111).

5. The laundry device (100) according to claim 4, wherein: The condenser (125) is arranged in a thermal cycle of a heat pump, a cooling medium circulates in the thermal cycle of the heat pump, and the cooling medium is configured to heat the condenser (125).

6. The laundry device (100) according to any one of the preceding claims, wherein The first width (141) of the flow channel (121) is smaller than the second width (143) of the flow channel (121), and in particular, the width of the flow channel (121) increases continuously from the first width (141) to the second width (143) along the flow direction.

7. The laundry device (100) according to any one of the preceding claims, wherein The flow channel (121) has a third width (145) between two side walls (122-1, 122-2) of the flow channel (121) at the inlet portion (129), wherein the third width (145) is smaller than the first width (141), and in particular, the width of the flow channel (121) increases continuously from the third width (145) to the first width (141) along the flow direction.

8. The laundry device (100) according to any one of the preceding claims, wherein The flow channel (121) has a first height (147) between a bottom wall (137) of the flow channel (121) and a top wall (149) of the flow channel (121) at an inlet portion (129), and the flow channel (121) has a second height (151) between a bottom wall (137) of the flow channel (121) and a top wall (149) of the flow channel (121) in a middle portion (131) of the flow channel (121) located upstream of the recess (123), the second height (151) of the flow channel (121) being smaller than the first height (147) of the flow channel (121), in particular, the height of the flow channel (121) continuously decreases from the first height (147) to the second height (151) along a flow direction.

9. The laundry device (100) according to any one of the preceding claims, wherein The flow channel (121) has a second height (151) between a bottom wall (137) of the flow channel (121) and a top wall (149) of the flow channel (121) in a middle portion (131) of the flow channel (121) located upstream of the recess (123), and the flow channel (121) has a third height (153) between the bottom wall (137) of the recess (123) and the top wall (149) of the flow channel (121), the second height (151) of the flow channel (121) being smaller than the third height (153) of the flow channel (121), and in particular, the height of the flow channel (121) increases continuously from the second height (151) to the third height (153) along the flow direction.

10. The laundry device (100) according to any one of the preceding claims, wherein The top wall (149) of the flow channel (121) is parallel to the bottom wall of the recess (123) along a portion of the middle portion (131).

11. The laundry device (100) according to any one of the preceding claims, wherein The flow channel (121) has a fourth height (155) between the bottom wall (137) of the flow channel (121) and the top wall (149) of the flow channel (121) at the raised portion (139), and the flow channel (121) has a third height (153) between the bottom wall (137) of the recessed portion (123) and the top wall (149) of the flow channel (121), and the fourth height (155) of the flow channel (121) is smaller than the third height (153) of the flow channel (121), and in particular, the height of the flow channel (121) continuously decreases from the third height (153) to the fourth height (155) along the flow direction.

12. The laundry device (100) according to any one of the preceding claims, wherein The outlet portion (133) includes a water outlet channel (135) extending downward, and the width of the water outlet channel (135) between two side walls (122-1, 122-2) of the flow channel (121) at the outlet portion (133) corresponds to the second width (143) of the flow channel (121).

13. The laundry device (100) according to claim 12, wherein: The flow channel (121) and the water outlet channel (135) are arranged at an angle of 80° to 100°, in particular 90°, to each other, and / or the flow channel (121) and the water outlet channel (135) are connected via a rounded edge.

14. The laundry device (100) according to any one of the preceding claims, wherein The recess (123) is formed as a concave recess in the flow channel (121).

15. The laundry device (100) according to any one of the preceding claims, wherein The recess (123) extends over the entire first width (141) of the flow channel (121) between the two side walls (122-1, 122-2) of the flow channel (121), and / or the raised portion is adapted to allow pumped water to flow through the raised portion (139) along the entire second width (143) of the flow channel (121) between the two side walls (122-1, 122-2) of the flow channel (121).

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