Drying system and dishwasher having the same

Abstract

The present invention provides a drying system and a dishwasher having the same. The drying system is suitable for use with a dishwasher and includes: a drying component including a heat dissipation unit and a condensation unit; an air inlet duct, a first inlet of the air inlet duct being connected to the room, and a first outlet of the air inlet duct being connected to the inner cavity of the dishwasher; the heat dissipation unit disposed within the air inlet duct; an air outlet duct, a second inlet of the air outlet duct being connected to the inner cavity, and a second outlet of the air outlet duct being connected to the room; and a condensation unit disposed within the air outlet duct. The drying system of the present invention solves the problem of poor drying performance in conventional drying systems.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a drying system and a dishwasher having the same. Background Art

[0002] Currently, the drying system of a dishwasher generally adopts a drying method that combines internal hot air drying with external air circulation.

[0003] However, the aforementioned drying system inevitably prevents the dishwasher cavity from completely drying out moisture. Often, even after the drying process is complete and the cavity returns to normal, cool temperature, some moisture will condense on the inner walls or on the surfaces of the dishes, preventing them from achieving the ideal drying state. Incomplete internal dehumidification and excessive humidity can also affect the drying process. Low drying levels can lead to the growth of harmful bacteria, hindering the extended storage of dishwasher dishes. Summary of the Invention

[0004] The main purpose of the present invention is to provide a drying system and a dishwasher having the same, so as to solve the problem of poor drying effect of the drying system in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a drying system is provided, which is suitable for a dishwasher, and the drying system includes: a drying component, including a heat dissipation part and a condensation part; an air inlet duct, a first inlet of the air inlet duct is used to communicate with the room, and a first outlet of the air inlet duct is used to communicate with the inner cavity of the dishwasher; the heat dissipation part is arranged in the air inlet duct; an air outlet duct, a second inlet of the air outlet duct is used to communicate with the inner cavity, and a second outlet of the air outlet duct is used to communicate with the room; and the condensation part is arranged in the air outlet duct.

[0006] Furthermore, the drying component also includes a refrigeration fin, which has a heat dissipation end and a heat absorption end. The heat dissipation part is connected to the heat dissipation end, and the condensation part is connected to the heat absorption end.

[0007] Furthermore, the heat dissipation portion includes a plurality of heat dissipation fins, which are spaced apart in the air inlet duct; and / or the condensation portion includes a plurality of condensation fins, which are spaced apart in the air outlet duct.

[0008] Furthermore, the drying system also includes: a first switch component, connected to the air inlet duct and located on a side of the heat dissipation part away from the first inlet, at least a portion of the first switch component is movably arranged to open or block the air inlet duct; and / or, a second switch component, connected to the air outlet duct and located on a side of the condensation part away from the second outlet, at least a portion of the second switch component is movably arranged to open or block the air outlet duct.

[0009] Furthermore, the first switch component is a solenoid valve; or, the first switch component includes a first driving member and a first baffle connected to the first driving member, so that the first driving member drives the first baffle to move, so that the first baffle opens or blocks the air inlet duct.

[0010] Furthermore, the drying system further includes: a water collecting tank, which is connected to the air outlet duct, and the water collecting tank is located below the condensation part to collect condensed water.

[0011] Furthermore, the drying system further includes a filter element, which is arranged at the first inlet.

[0012] Furthermore, the drying system further includes an air inlet fan, which is arranged in the air inlet duct; and / or the drying system further includes an air exhaust fan, which is arranged in the air outlet duct.

[0013] Furthermore, the drying system also includes: a humidity sensor, the detection head of the humidity sensor is arranged in the air outlet duct, and when the humidity sensor detects that the humidity in the air outlet duct is lower than a preset humidity, the drying system is controlled to stop working.

[0014] According to another aspect of the present invention, a dishwasher is provided, comprising a drying system, wherein the drying system is the above-mentioned drying system.

[0015] The drying system of the present invention is suitable for a dishwasher and is used to dry tableware in the inner cavity of the dishwasher. The drying system includes a drying component, an air inlet duct and an air outlet duct, both of which are connected to the inner cavity; the drying component includes a heat dissipation part and a condensation part, the heat dissipation part is arranged in the air inlet duct, and the condensation part is arranged in the air outlet duct. When the drying system is working, the indoor air enters the air inlet duct through the first inlet and passes through the heat dissipation part. The gas passing through the heat dissipation part forms a hot air drying airflow and enters the inner cavity through the first outlet to dry the tableware in the inner cavity; and the hot and humid airflow in the inner cavity enters the air outlet duct through the second inlet and passes through the condensation part. The airflow passing through the condensation part is cooled and the water vapor is condensed on the condensation part. Finally, the dry airflow is discharged from the second outlet. The airflow in the air inlet and outlet ducts circulates according to the above until the drying is completed. It can be seen that the air inlet and outlet ducts of the drying system form an air flow loop with the inner cavity, and cooperate with the heat dissipation part and the condensation part to ensure the dryness and temperature of the gas used to dry the inner cavity, and can effectively dehumidify the inner cavity, improve the drying effect, effectively inhibit the growth of harmful bacteria, and help to extend the storage of dishwasher tableware. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of a drying system according to the present invention is shown; and

[0018] Figure 2 A structural schematic diagram of a drying component of a drying system according to the present invention is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Drying component; 11. Heat dissipation unit; 111. Heat sink; 12. Condensation unit; 121. Condensation fin; 13. Refrigeration fin; 131. Heat dissipation end; 132. Heat absorption end; 20. Air inlet duct; 21. First inlet; 22. First outlet; 30. Air outlet duct; 31. Second inlet; 32. Second outlet; 40. Inner cavity; 50. First switch component; 60. Second switch component; 70. Water collecting tank; 80. Filter element; 90. Air inlet fan; 100. Exhaust fan. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] The present invention provides a drying system, please refer to Figure 1 and Figure 2 , suitable for a dishwasher, the drying system includes: a drying component 10, including a heat dissipation portion 11 and a condensation portion 12; an air inlet duct 20, a first inlet 21 of the air inlet duct 20 is used to communicate with the indoor room, and a first outlet 22 of the air inlet duct 20 is used to communicate with the inner cavity 40 of the dishwasher; the heat dissipation portion 11 is arranged in the air inlet duct 20; an air outlet duct 30, a second inlet 31 of the air outlet duct 30 is used to communicate with the inner cavity 40, and a second outlet 32 ​​of the air outlet duct 30 is used to communicate with the indoor room; the condensation portion 12 is arranged in the air outlet duct 30.

[0025] The drying system of the present invention is suitable for use in a dishwasher, and is used to dry dishware within the inner cavity 40 of the dishwasher. The drying system comprises a drying unit 10, an air inlet duct 20, and an air outlet duct 30, both of which are in communication with the inner cavity 40. The drying unit 10 comprises a heat sink 11 and a condenser 12, with the heat sink 11 disposed within the air inlet duct 20 and the condenser 12 disposed within the air outlet 30. When the drying system is in operation, indoor air enters the air inlet duct 20 through a first inlet 21 and passes through the heat sink 11. The air passing through the heat sink 11 forms a hot, dry air flow, which enters the inner cavity 40 through a first outlet to dry the dishware within the inner cavity 40. Furthermore, the hot, humid air within the inner cavity 40 enters the air outlet 30 through a second inlet 31 and passes through the condenser 12. The air passing through the condenser 12 cools, causing water vapor to condense onto the condenser 12. Finally, the dry air is discharged through a second outlet 32. The airflow within the air inlet duct 20 and the air outlet 30 continues in this cycle until drying is complete. It can be seen that the air inlet duct 20 and the air outlet duct 30 of the drying system form an air flow loop with the inner cavity 40, and cooperate with the heat dissipation part 11 and the condensation part 12 to ensure the dryness and temperature of the gas used to dry the inner cavity 40, and can effectively dehumidify the inner cavity 40, improve the drying effect, effectively inhibit the growth of harmful bacteria, and help to extend the storage of dishwasher tableware.

[0026] In this embodiment, the drying unit 10 further includes a cooling fin 13 having a heat dissipation end 131 and a heat absorption end 132. The heat dissipation portion 11 is connected to the heat dissipation end 131, and the condensation portion 12 is connected to the heat absorption end 132. The cooling fin is also called a thermoelectric semiconductor cooling component.

[0027] Specifically, the heat dissipation end 131 and the heat absorption end 132 are arranged opposite to each other.

[0028] Specifically, at least a portion of the heat dissipation end 131 is disposed in the air inlet duct 20 or outside the air inlet duct 20 ; at least a portion of the heat absorption end 132 is disposed in the air outlet duct 30 or outside the air outlet duct 30 .

[0029] Specifically, a first opening is provided on a first side wall of the air inlet duct 20, and a second opening is provided on a second side wall of the air outlet duct 30. The first opening and the second opening are arranged opposite each other. The heat dissipation unit 11 is arranged in the air inlet duct 20 through the first opening, and the condensation unit 12 is arranged in the air outlet duct 30 through the second opening. The first side wall and the second side wall are spaced apart or abutted against each other. When the first side wall and the second side wall are spaced apart, at least a portion of the drying component 10 is located between the first side wall and the second side wall.

[0030] In this embodiment, the heat dissipation unit 11 includes a plurality of heat dissipation fins 111, which are spaced apart within the air inlet duct 20; and / or the condensation unit 12 includes a plurality of condensation fins 121, which are spaced apart within the air outlet duct 30. The plurality of heat dissipation fins 111 improves the drying and heating effect on the incoming air, and the plurality of condensation fins 121 allow more moisture in the outgoing air to condense.

[0031] Specifically, the heat sink 111 and the condenser 121 are both made of metal material.

[0032] In specific implementation, the refrigeration plate 13, which serves as the core of the drying system, includes a heat-absorbing end 132 with a metal condensing plate 121 and a heat-dissipating end 131 with a metal heat sink 111. When the refrigeration plate 13 is powered on, a temperature difference is generated between the heat-absorbing end 132 and the heat-dissipating end 131. When the heat-absorbing end 132 and the condensing plate 121, and the heat-dissipating end 131 and the heat sink 111 are placed in two separate spaces (i.e., the air inlet duct 20 and the air outlet duct 30), the temperature of the air flow can be increased after the air flow passes through the heat-dissipating end 131 and the heat sink 111, and the moisture in the air flow can be condensed when it is cold after passing through the heat-absorbing end 132 and the condensing plate 121.

[0033] In this embodiment, the drying system also includes: a first switch component 50, which is connected to the air inlet duct 20 and is located on the side of the heat dissipation part 11 away from the first inlet 21, and at least a part of the first switch component 50 is movably set to open or block the air inlet duct 20; and / or, a second switch component 60, which is connected to the air outlet duct 30 and is located on the side of the condensation part 12 away from the second outlet 32, and at least a part of the second switch component 60 is movably set to open or block the air outlet duct 30.

[0034] Specifically, the first switch component 50 is a solenoid valve; or the first switch component 50 includes a first driving member and a first baffle connected to the first driving member, so that the first driving member drives the first baffle to move, so that the first baffle opens or blocks the air inlet duct 20. The first driving member is a motor.

[0035] Specifically, the second switch component 60 is a solenoid valve; or the second switch component 60 includes a second driving member and a second baffle connected to the second driving member, so that the second driving member drives the second baffle to move, so that the second baffle opens or blocks the air inlet duct 20. The first driving member is a motor.

[0036] In this embodiment, the drying system further includes a water collecting tank 70 , which is in communication with the air outlet duct 30 . The water collecting tank 70 is located below the condensation portion 12 to collect condensed water.

[0037] In this embodiment, the drying system further includes a filter element 80 , which is disposed at the first inlet 21 . This arrangement can ensure that the gas entering the inner cavity 40 is clean.

[0038] Specifically, the filter element 80 is a filter mesh.

[0039] In this embodiment, the drying system further includes an air inlet fan 90, which is disposed within the air inlet duct 20 to allow indoor air to enter the inner cavity through the air inlet duct 20; and / or, the drying system further includes an air exhaust fan 100, which is disposed within the air outlet duct 30 to allow air within the inner cavity 40 to be discharged into the room through the air outlet duct 30. It should be noted that because the air inlet fan 90 is relatively far from the inner cavity 40, the exhaust fan is required to work in conjunction with the exhaust fan to ensure smooth airflow within the air inlet and outlet ducts.

[0040] Specifically, the air inlet fan 90 is arranged between the heat dissipation part 11 and the first inlet 21, and the air exhaust fan 100 is arranged between the condensation part 12 and the second outlet 32; the air inlet fan 90 and the air exhaust fan 100 are respectively driven to rotate by a motor.

[0041] In this embodiment, the drying system further includes a humidity sensor, the detection head of which is disposed within the air outlet duct 30. When the humidity sensor detects that the humidity within the air outlet duct 30 is less than a preset humidity, the drying system is stopped. In practice, the drying process can be terminated prematurely if the humidity within the air outlet duct 30 reaches a predetermined level.

[0042] In specific implementation, after the dishwasher activates the drying function, a signal is sent to control the operation of the first switch component 50 and the second switch component 60, causing the air inlet duct 20 and the air outlet duct 30 to open, thereby connecting both to the inner cavity 40. When the dishwasher begins drying, the air inlet fan 90 and the exhaust fan 100 are controlled to start simultaneously, ventilating the air flow in the inner cavity 40 and discharging the hot and humid air inside. The refrigeration fins 13 then operate, with the heat absorbing end 132 cooling and the heat dissipating end 131 dissipating heat, creating a temperature difference between the air outlet duct 30 and the air inlet duct 20. The clean airflow passing through the filter element is converted into a hot drying airflow through the heat dissipating end 131 heat sink, and then enters the inner cavity 40 through the first switch component 50 at the bottom. The hot and humid air flow in the inner cavity 40 passes through the second switch component 60 and the condensation plate at the heat absorption end 132. When it encounters cold, the water vapor condenses onto the cooling plate. The condensed water droplets drip directly along the condensation plate or pass through the inclined platform into the water collecting tank 70. Finally, the dry air flow is discharged by the exhaust fan. Until the drying process is completed, first turn off the air inlet fan and the exhaust fan, then turn off the cooling plate, and finally turn off the first switch component 50 and the second switch component 60 to end the drying.

[0043] In practice, the thermoelectric semiconductor refrigeration assembly itself requires both cooling and heat dissipation. Heat dissipation is generated by the heat dissipation unit 11 and passed through the air inlet fan 90, generating a drying hot air flow that enters the inner cavity 40. The moist hot air in the inner cavity 40 is condensed by the condensation unit 12 and then further blown out by the exhaust fan 100. Through the circulation ventilation, the inner cavity achieves a drying effect. This application combines the thermoelectric semiconductor refrigeration element assembly with airflow loop control to achieve the drying function of the dishwasher through cooling and drying, ensuring the drying effect.

[0044] The present invention further provides a dishwasher, comprising a drying system, wherein the drying system is the drying system in the above embodiment.

[0045] Specifically, the drying system is located inside the dishwasher and at the rear side of the inner cavity 40 .

[0046] The present application solves the following technical problems: utilizing the cooling and heat dissipation functions of the refrigeration plate to achieve circulation drying, greatly improving the dryness of the inner cavity after drying.

[0047] The beneficial effects of this application are: the cooling and heat dissipation functions of the refrigeration plate are used to achieve circulation drying, further improving the dryness of the inner cavity, effectively inhibiting the growth of harmful bacteria, and helping to extend the storage of dishwasher tableware. From the user's perspective, the kitchen is of great significance in creating healthier and safer kitchen appliances.

[0048] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0049] The drying system of the present invention is suitable for use in a dishwasher, and is used to dry dishware within the inner cavity 40 of the dishwasher. The drying system comprises a drying unit 10, an air inlet duct 20, and an air outlet duct 30, both of which are in communication with the inner cavity 40. The drying unit 10 comprises a heat sink 11 and a condenser 12, with the heat sink 11 disposed within the air inlet duct 20 and the condenser 12 disposed within the air outlet 30. When the drying system is in operation, indoor air enters the air inlet duct 20 through a first inlet 21 and passes through the heat sink 11. The air passing through the heat sink 11 forms a hot, dry air flow, which enters the inner cavity 40 through a first outlet to dry the dishware within the inner cavity 40. Furthermore, the hot, humid air within the inner cavity 40 enters the air outlet 30 through a second inlet 31 and passes through the condenser 12. The air passing through the condenser 12 cools, causing water vapor to condense onto the condenser 12. Finally, the dry air is discharged through a second outlet 32. The airflow within the air inlet duct 20 and the air outlet 30 continues in this cycle until drying is complete. It can be seen that the air inlet duct 20 and the air outlet duct 30 of the drying system form an air flow loop with the inner cavity 40, and cooperate with the heat dissipation part 11 and the condensation part 12 to ensure the dryness and temperature of the gas used to dry the inner cavity 40, and can effectively dehumidify the inner cavity 40, improve the drying effect, effectively inhibit the growth of harmful bacteria, and help to extend the storage of dishwasher tableware.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A drying system, suitable for a dishwasher, characterized in that: The drying system comprises: A drying component (10) comprising a heat dissipation portion (11) and a condensation portion (12); An air inlet duct (20), wherein a first inlet (21) of the air inlet duct (20) is used to communicate with the room, and a first outlet (22) of the air inlet duct (20) is used to communicate with the inner cavity (40) of the dishwasher; the heat dissipation portion (11) is arranged in the air inlet duct (20); An air outlet duct (30), wherein the second inlet (31) of the air outlet duct (30) is used to communicate with the inner cavity (40), and the second outlet (32) of the air outlet duct (30) is used to communicate with the indoor space; the condensation portion (12) is arranged in the air outlet duct (30); The drying component (10) further comprises a refrigeration fin (13), wherein the refrigeration fin (13) has a heat dissipation end (131) and a heat absorption end (132), the heat dissipation portion (11) is connected to the heat dissipation end (131), and the condensation portion (12) is connected to the heat absorption end (132); The heat dissipation portion (11) includes a plurality of heat dissipation fins (111), and the plurality of heat dissipation fins (111) are arranged at intervals in the air inlet duct (20); and / or the condensation portion (12) includes a plurality of condensation fins (121), and the plurality of condensation fins (121) are arranged at intervals in the air outlet duct (30).

2. The drying system according to claim 1, characterized in that: The drying system also includes: a first switch component (50) connected to the air inlet duct (20) and located on a side of the heat dissipation portion (11) away from the first inlet (21), at least a portion of the first switch component (50) being movably arranged to open or block the air inlet duct (20); and / or, A second switch component (60) is connected to the air outlet duct (30) and is located on a side of the condensation portion (12) away from the second outlet (32), and at least a portion of the second switch component (60) is movably arranged to open or block the air outlet duct (30).

3. The drying system according to claim 2, characterized in that: The first switch component (50) is a solenoid valve; or the first switch component (50) includes a first driving member and a first baffle connected to the first driving member, so that the first driving member drives the first baffle to move, so that the first baffle opens or blocks the air inlet duct (20).

4. The drying system according to claim 1, characterized in that: The drying system also includes: A water collecting tank (70) is connected to the air outlet duct (30), and the water collecting tank (70) is located below the condensation portion (12) to collect condensed water.

5. The drying system according to claim 1, characterized in that: The drying system further comprises a filter element (80), wherein the filter element (80) is arranged at the first inlet (21).

6. The drying system according to claim 1, characterized in that: The drying system further comprises an air inlet fan (90), wherein the air inlet fan (90) is arranged in the air inlet duct (20); and / or, The drying system further comprises an exhaust fan (100), and the exhaust fan (100) is arranged in the air outlet duct (30).

7. The drying system according to claim 1, characterized in that: The drying system also includes: A humidity sensor, wherein a detection head of the humidity sensor is arranged in the air outlet duct (30), and when the humidity sensor detects that the humidity in the air outlet duct (30) is lower than a preset humidity, the drying system is controlled to stop working.

8. A dishwasher comprising a drying system, characterized in that: The drying system is the drying system according to any one of claims 1 to 7.

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