Dishwasher

Abstract

The utility model discloses a dish washing machine which comprises a water cup. The water tank is provided with a water storage space; one end of the first switch valve is communicated with an outlet of the water tank; the water distribution structure is provided with a first connector, a second connector and a third connector, the first connector is communicated with the other end of the first switch valve and the water inlet flow channel, the second connector is communicated with an inlet of the water tank, and the third connector is connected with an inlet of the water cup. According to the dish-washing machine provided by the embodiment of the utility model, the adjustment of the water flow direction can be realized through the linkage of the first switch valve and the water diversion structure, so that different water demands can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a dishwasher. Background Art

[0002] Most dishwashers in the related art are directly connected to the faucet. When the dishwasher is working, the faucet is turned on and water flows into the dishwasher for washing. In this way, the dishwasher needs to be installed near the faucet and connected to the faucet. This not only limits the placement of the dishwasher, but also requires connecting the dishwasher to the faucet through devices such as connecting water pipes, which also increases the installation steps of the dishwasher, making it inconvenient to use and not conducive to movement. Utility Model Content

[0003] One purpose of the utility model is to provide a dishwasher, which is provided with a first switch valve and a water diversion structure to control the flow direction of water so as to facilitate water replenishment to a water tank.

[0004] According to an embodiment of the present invention, a dishwasher includes: a water cup; a water tank having a water storage space; a first switch valve, one end of which is connected to the outlet of the water tank; a water diversion structure, the water diversion structure having a first interface, a second interface, and a third interface, the first interface connecting the other end of the first switch valve and a water inlet channel, the second interface connecting the inlet of the water tank, and the third interface connecting the inlet of the water cup.

[0005] According to the dishwasher of the embodiment of the present invention, the water flow direction can be adjusted through the linkage of the first switch valve and the water diversion structure to meet different water needs.

[0006] In addition, the dishwasher according to the above embodiment of the present invention may also have the following additional technical features:

[0007] In some embodiments, the dishwasher has at least two operating modes, and the water diversion structure is configured to control the first interface to selectively connect to the second interface and the third interface according to the at least two operating modes.

[0008] In some embodiments, the dishwasher has a first operating mode, in which the first switch valve is closed and the first interface and the second interface are connected for replenishing water to the water tank;

[0009] And / or, the dishwasher further has a second operating mode, in which the first switch valve is closed, and the first interface and the third interface are connected for replenishing water in the water cup;

[0010] And / or, the dishwasher further has a third operating mode. In the third operating mode, the first switch valve is opened, and the first interface and the third interface are connected to supply water to the water cup through the water tank.

[0011] In some embodiments, the dishwasher further includes a water softener connected between the water inlet channel and the first interface, and configured to supply softened water to the first interface.

[0012] In some embodiments, the water diversion structure is installed on the water softener; and / or, at least a portion of the pipeline between the water diversion structure and the water tank is integrated into the water softener; and / or, at least a portion of the pipeline between the water diversion structure and the water cup is integrated into the water softener.

[0013] In some embodiments, the water inlet channel is integrated into the water tank, the water tank is connected to the water softener, and the water inlet channel is connected to the soft water channel in the water softener; and / or, the water softener is provided with a water source interface, the water inlet channel is integrated into the water tank, the water tank is connected to the water softener, and the water inlet channel is connected to the water source interface.

[0014] In some embodiments, the water tank is provided with at least one water tank interface, the water softener is provided with at least one water softener interface, the water tank is connected to the water softener, and the at least one water tank interface and the at least one water softener interface are docked.

[0015] In some embodiments, the dishwasher further includes a heat exchanger having a first flow channel and a second flow channel for heat exchange, the first flow channel being connected to the water storage space in the water tank to form a heat exchange circuit, and the two ends of the second flow channel being connected to the third interface and the outlet of the water cup, respectively.

[0016] In some embodiments, the dishwasher further includes a circulation pump and a second switch valve, wherein the inlet of the circulation pump is connected to the outlet of the water cup, and the second switch valve is connected between the outlet of the circulation pump and the second flow channel of the heat exchanger, and is used to connect or disconnect the second flow channel with the outlet of the water cup.

[0017] In some embodiments, the dishwasher further has a fourth operating mode. In the fourth operating mode, the third interface is disconnected from the first interface, the circulation pump is running, and the second switch valve is open, so that the water in the cup is sent to the second flow channel of the heat exchanger.

[0018] And / or, the dishwasher further has a fifth working mode, in which the third interface is connected to the first interface, the circulation pump is reversed or stopped, and the second switch valve is opened to flush the second flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of a dishwasher according to an embodiment of the present invention.

[0020] Figure numerals: first flow path 1, second flow path 2, water tank 3, water tank water inlet 4, inner tank connection port 5, cold water outlet 6, heat exchanger 7, water inlet flow path 8, hot water flow path 9, cold water flow path 10, water inlet flow path 12, flow meter 14, first pipe 15, second pipe 16, drainage pipe 17, water inlet pipe 18, water inlet valve 19, water softener 20, first interface 21, first cold water pipe 22, third pipe 23, first switch valve 24, water diversion structure 25, water pump 26, second cold water pipe 27, fourth pipe 28, drain pump 30, first hot water pipe 31, second switch valve 32, second hot water pipe 33, circulation pump 34, water diversion valve 35, water cup 36, lower spray arm 37, middle spray arm 38, upper spray arm 39, inner tank 40. DETAILED DESCRIPTION

[0021] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] like Figure 1 The dishwasher according to an embodiment of the present invention includes a water cup 36, which is used to temporarily store water and filter the washing water. During use, the washing water can be stored in the water cup 36 to facilitate the centralized discharge of the washing water and to collect residues during the washing process. The dishwasher also includes a water tank 3, which has a water storage space that can be used to store water. This water storage facilitates the operation of the dishwasher, thereby improving the efficiency and effectiveness of washing. In addition, a washing box can be included, which has a washing space inside, in which dishes to be washed can be placed, and the water cup 36 can be placed at the bottom of the washing box and connected to the washing space.

[0023] The dishwasher may also include a first on-off valve 24, one end of which is connected to the outlet of the water tank 3 and can be used to control the opening and closing of the outlet of the water tank 3. The dishwasher also includes a water diversion structure 25 having a first port 21, a second port, and a third port. The first port 21 connects the other end of the first on-off valve 24 to the water inlet channel 12, the second port connects to the inlet of the water tank 3, and the third port connects to the inlet of the water cup 36. The water flow direction can be controlled by the diversion structure.

[0024] The dishwasher according to the embodiment of the present invention can adjust the direction of water flow through the linkage of the first switch valve 24 and the water diversion structure 25. For example, the combination of the first switch valve 24 and the water diversion structure 25 can control the water source to supply water to the water cup 36 or control the water source to replenish water to the water tank 3. It can also control the water tank 3 or the water source to supply water to the water cup 36 to meet different water needs. This makes the use of the dishwasher more convenient.

[0025] In addition, the water tank 3 in the present invention can be stacked on the side wall, bottom wall or top wall of the washing box.

[0026] like Figure 1 In some embodiments, the dishwasher has at least two operating modes. The water diversion structure 25 is configured to control the first port 21 to selectively connect to the second port and the third port according to the at least two operating modes. Thus, the operating mode of the dishwasher can be switched by adjusting the water diversion structure 25, thereby facilitating use of the dishwasher.

[0027] Optionally, the dishwasher in the present invention may include but is not limited to the following operating modes.

[0028] In some examples, the dishwasher has a first operating mode. In the first operating mode, the first on-off valve 24 is closed and the first port 21 and the second port are connected for replenishing water into the water tank 3. In the first operating mode, after the water in the water inlet channel 12 reaches the first port 21, the water will flow to the second port, thereby replenishing the water tank 3. A water level sensor can be provided in the water tank 3 or a flow sensor can be provided in the water inlet channel 12. When the water level in the water tank 3 reaches a preset level, the water inlet channel 12 will be closed, thereby completing the water replenishment of the water tank 3.

[0029] In some embodiments, the dishwasher also has a second operating mode. In this second operating mode, first on / off valve 24 is closed, and first port 21 and third port are connected for refilling cup 36. In this second operating mode, after water from water inlet channel 12 reaches first port 21, it flows to the third port, thereby supplying water to cup 36. A flow sensor can be provided in water inlet channel 12. When the water level in cup 36 reaches a preset level, water inlet channel 12 is closed, completing the water supply to cup 36.

[0030] In some examples, the dishwasher also has a third operating mode. In the third operating mode, the first on-off valve 24 is open, and the first port 21 and the third port are connected to supply water to the water cup 36 through the water tank 3. In the third operating mode, the water inlet channel 12 is closed, and the water in the water tank 3 flows out from the outlet, passes through the first on-off valve 24, flows to the first port 21, and then flows to the water cup 36 through the third port, thereby supplying water to the water cup 36. When the water level in the water cup 36 reaches a preset water level, the first on-off valve 24 can be closed, completing the water supply to the water cup 36.

[0031] In some embodiments, the dishwasher further includes a water softener 20, which is connected between the water inlet channel 12 and the first port 21 and is configured to supply softened water to the first port 21. The provision of the water softener 20 provides softened water, thereby improving the dishwasher's washing efficiency and effectiveness. Furthermore, the water softener 20, positioned before the first port 21, can supply softened water to the water tank 3 and the water cup 36, achieving fully soft water washing.

[0032] In some embodiments, the water diversion structure 25 is mounted on the water softener 20; and / or at least a portion of the piping between the water diversion structure 25 and the water tank 3 is integrated with the water softener 20; and / or at least a portion of the piping between the water diversion structure 25 and the water cup 36 is integrated with the water softener 20. This facilitates the integration of the water softener 20, simplifies the structure of the dishwasher, facilitates dishwasher maintenance, and optimizes space utilization.

[0033] In some embodiments, the water inlet channel 12 is integrated into the water tank 3, which is connected to the water softener 20, and the water inlet channel 12 communicates with the soft water channel within the water softener 20. Alternatively, the water softener 20 is provided with a water source interface, and the water inlet channel 12 is integrated into the water tank 3, which is connected to the water softener 20, and the water inlet channel 12 communicates with the water source interface. The connection between the water tank 3 and the water softener 20 allows the flow path within the water tank 3 to communicate with the flow path within the water softener 20, facilitating component integration and dishwasher assembly, thereby improving dishwasher assembly efficiency and stability.

[0034] Optionally, the water tank 3 is provided with at least one water tank 3 interface, and the water softener 20 is provided with at least one water softener 20 interface. The water tank 3 is connected to the water softener 20, and the at least one water tank 3 interface is docked with the at least one water softener 20 interface. This simplifies the assembly structure of the water softener 20 and the water tank 3, thereby further simplifying the structure of the dishwasher.

[0035] In some embodiments, the dishwasher further includes a heat exchanger 7 having a first flow channel and a second flow channel for heat exchange. The first flow channel communicates with the water storage space within the water tank 3 to form a heat exchange circuit, and the ends of the second flow channel respectively communicate with the third port and the outlet of the water cup 36. During use, water in the water cup 36 can be fed into the second flow channel, and the water in the water tank 3 circulates through the first flow channel, achieving heat exchange between the water in the water tank 3 and the wastewater in the water cup 36. This improves energy utilization and avoids heat loss during the dishwasher's washing process.

[0036] Optionally, the dishwasher further includes a circulation pump 34 and a second on-off valve 32. The inlet of the circulation pump 34 is connected to the outlet of the water cup 36, and the second on-off valve 32 is connected between the outlet of the circulation pump 34 and the second flow channel of the heat exchanger, thereby connecting or disconnecting the second flow channel of the heat exchanger from the outlet of the water cup 36. The circulation pump 34 can be used to pump wash water to wash dishes in the dishwasher, while the second on-off valve 32 can be used to control the direction of water flow. For example, by opening the second on-off valve 32, the second flow channel of the heat exchanger can be connected to the water cup 36, thereby achieving water circulation between the second flow channel of the heat exchanger and the water cup 36. Alternatively, by closing the second on-off valve 32, the water in the water cup 36 can be sent to the washing tank to wash the dishes and the like inside the washing tank.

[0037] Optionally, the dishwasher in the present invention may include but is not limited to the following operating modes.

[0038] In some examples, the dishwasher also has a fourth operating mode. In this fourth operating mode, the third port is disconnected from the first port 21, the circulating pump 34 is running, and the second on-off valve 32 is open, allowing the water in the water cup 36 to be delivered to the second flow channel of the heat exchanger. In this fourth operating mode, the circulating pump 34 operates, pumping water from the water cup 36 out of the water cup 36. Since the second on-off valve 32 is open, the water in the water cup 36 is delivered to the second flow channel of the heat exchanger. After exchanging heat with the water in the first flow channel, the water is then delivered to the inlet of the water cup 36. This achieves the purpose of preheating the water in the water tank 3 using the waste heat in the water cup 36, improving the energy efficiency of the dishwasher.

[0039] In some examples, the dishwasher also has a fifth operating mode. In this fifth operating mode, the third port is connected to the first port 21, the circulation pump 34 is reversed or stopped, and the second on-off valve 32 is opened to flush the second flow channel. In this fifth operating mode, water from the water inlet channel 12 or the water tank 3 can be supplied to the third port, and then supplied to the second flow channel after passing through the third port. After passing through the second flow channel, the water is supplied to the water cup 36 through the second on-off valve 32, thereby achieving reverse flushing of the second flow channel.

[0040] Optionally, a third switch valve can be set between the third interface and the inlet of the water cup 36. The third switch valve can be set between the second flow channel and the inlet of the water cup 36, so that the flow direction of water sent out of the third interface is controlled by the third switch valve. In addition, a fourth switch valve can be set between the second flow channel and the third interface, and the third switch valve and the fourth switch valve can also be combined into a reversing valve.

[0041] Optionally, a fifth switch valve can be provided between the circulation pump 34 and the water diversion valve 35. The fifth switch valve and the second switch valve 32 cooperate to control the direction of water flow at the outlet of the circulation pump 34. In addition, the second switch valve 32 and the fifth switch valve can be combined to form a reversing valve.

[0042] In order to meet the needs of a large number of dishwashers, the heat exchange system of the present invention has a small overall size, a simple structure, and does not occupy the space of the original inner tank 40 of the dishwasher. The volume of the heat exchanger 7 in the present invention is much smaller than any heat exchanger 7 in the above-mentioned utility model patents, and the heat exchange efficiency is greater than 90%. The auxiliary equipment and connecting pipes used in the heat exchange system of the present invention are simpler and easy to install.

[0043] Some specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0044] like Figure 1 A flow path system of a dishwasher is shown, including an inner tank 40, a water cup 36, a water tank 3, a heat exchanger 7, a water softener 20, a water distribution structure 25, a circulation pump 34, a water pump 26, a drain pump 2630, a water diversion valve 35, a water inlet valve 19, a drain valve, a flow meter 14, and at least one of a first switch valve 24 and a second switch valve 32.

[0045] The inner tank 40 defines a washing space, within which is located at least one of a lower spray arm 37, a middle spray arm 38, and an upper spray arm 39. Each of these arms is connected to a water diversion valve 35, which is connected to a circulation pump 34, which is connected to the outlet of a water cup 36. The water cup 36 is attached to the bottom of the inner tank 40 and communicates with the washing space. The water tank 3 defines a water storage space and includes an interface for connecting the inner tank 40. The water tank 3 is an integrated device, located on the side panel of the dishwasher. The heat exchanger 7 includes a first flow channel and a second flow channel for heat exchange coordination. The first flow channel forms a loop with the water storage space, while the second flow channel forms a passageway with the water cup 36. The water softener 20 includes a water inlet channel and a soft water channel. The water inlet channel is connected to the water inlet valve 19 and communicates with the inlet of the water inlet channel 12. The inlet of the soft water channel communicates with the outlet of the water inlet channel, and the outlet of the soft water channel communicates with the water diversion structure 25. The water distribution structure 25 has a first interface 21, a second interface and a third interface. The first interface 21 is connected to the outlet of the soft water channel, the second interface is connected to the inlet of the water tank 3, and the third interface is connected to the water cup 36. The first switch valve 24 is connected between the first interface 21 and the outlet of the water tank 3.

[0046] The water tank of the present invention is integrated with a flow path. The water tank is provided with a first flow path 1, which is a pipe for circulating hot water within the water tank 3. The first flow path 1 can communicate with the fourth pipe 28, connecting the heat exchanger 7 and the inlet of the water cup 36. This allows water in the heat exchanger 7 to flow through the first flow path 1, the fourth pipe 28, and the inlet of the water cup 36 and enter the water cup 36. The second on-off valve 32 and the water pump 26 can be low-voltage electrical devices (a low-pressure solenoid valve and a low-pressure water pump 26). When water enters the water cup 36, the water flows back through the first flow path 1 into the heat exchanger 7 and then through the first hot water pipe 31, the second on-off valve 32, the second hot water pipe 33, and the circulation pump 34 into the water cup 36, completing the backwash of the heat exchanger 7.

[0047] The water inlet flow path 8 is a water inlet connecting pipe integrated into the water tank 3, which is used to connect the water tank water inlet 4 and the water distribution structure 25; the hot water flow path 9 is a hot water connecting pipe integrated into the water tank 3, which is used to connect the heat exchanger 7 and the first hot water pipe 31; the cold water flow path 10 is integrated into the water tank 3, which is used to connect the heat exchanger 7 and the second cold water pipe 27; the flow meter 14 is mainly used to calculate the water inlet flow rate, and can cooperate with the water inlet valve 19 to control the water inlet amount of the dishwasher, which is integrated into the water tank 3; the first pipe 15 is a connecting pipe, mainly used to connect the water inlet flow channel 12 and the water softener 20, and the flow meter 14 and the water softener 20; the second pipe 16 is used to connect the water distribution structure 25 and the water inlet flow path 8 to realize the water inlet function of the water tank 3; the water inlet valve 19 is mainly used to control the on-off of the water inlet pipe 18 of the pipeline. It is located on the water inlet pipe 18 and can also be integrated with the water softener 20; the water softener 20 is mainly used to soften the tap water entering the dishwasher. It is also an integrated device that can mainly integrate components such as the water inlet valve 19, the water diversion structure 25, and the water pump 26; the first interface 21 is the inlet of the water diversion structure 25, mainly used to connect the water softener 20 and the water diversion structure 25; the first cold water pipe 22 is used to connect the water tank 3 and the water pump 26; the third pipe 23 is used to connect the water tank 3, the first switch valve 24, the water softener 20 and The first interface 21; the first switch valve 24 is used to control the on-off of the third pipe 23, which can control the water discharge of the water tank 3. When the water tank 3 is draining water, the first switch valve 24 is opened, and the first interface 21 in the water distribution structure 25 is connected with the fourth pipe 28, and water flows from the water tank 3 through the first switch valve 24, the third pipe 23, the first interface 21, the fourth pipe 28, and the inlet of the water cup 36 into the water cup 36; the water distribution structure 25 is mainly used to realize the switching of the second water pipe 16 and the fourth water pipe 28. When the water tank 3 needs to be filled with water, it can make the first interface 21 connected with the second pipe 16, and when the water cup 36 needs to be filled with water, it can realize the first The interface 21 is connected to the fourth pipe 28, which can be integrated into the water softener 20 or arranged separately; the water pump 26 is used to transport the water flow from the water tank 3 to the heat exchanger 7 through the first cold water pipe 22, the second cold water pipe 27, and the cold water flow path 10, and return to the water tank 3 through the cold water outlet 6 to form a cold water flow cycle. It can be integrated into the water softener 20 to form an integrated structure, or it can be arranged independently; the second cold water pipe 27 is used to connect the water pump 26 and the cold water flow path 10; the fourth pipe 28 is used to connect the second pipe 16 and the water inlet valve 19, and is also used to connect the third pipe 23 and the inlet of the water cup 36 to enable water to enter the water cup 36.

[0048] The first hot water pipe 31 is used to connect the second switch valve 32 and the hot water flow path 9 to realize hot water delivery; the second switch valve 32 is used to control the on-off of the second switch valve 32 and the second hot water pipe 33; the second hot water pipe 33 is used to connect the circulation pump 34 and the second switch valve 32. When the water diversion valve 35 is closed, opening the second switch valve 32 can realize water flow from the circulation pump 34 into the second hot water pipe 33, the second switch valve 32, the first hot water pipe 31, the hot water flow path 9, the heat exchanger 7, the first flow path 1, the inner tank connection port 5, the inner tank 40, the water cup 36, The circulation pump 34 forms a hot water flow circulation; the circulation pump 34 is used to transport and heat the fluid; the water diversion valve 35 is used to realize water channel switching, which can control the water flow to enter the lower spray arm 37 / middle spray arm 38 / upper spray arm 39 separately, or it can be completely closed; the water cup 36 is mainly used to store / collect the water flow in the inner tank 40; the lower spray arm 37 is used to realize the spray washing of the lower spray arm 37; the middle spray arm 38 is used to realize the spray washing of the middle spray arm 38; the upper spray arm 39 is used to realize the spray washing of the upper spray arm 39; the inner tank 40 is used to form the frame, enclosure, support and other structures of the dishwasher.

[0049] The working process under the ECO timing is as follows: Process 1: Before the washing process starts, open the water inlet valve 19, switch the water diversion structure 25 to connect the water softener 20 with the water diversion structure 25, and the tap water enters the water softener 20 through the water inlet pipe 18, the water inlet valve 19, the flow meter 14, the water inlet channel 12, and the first pipe 15 for softening treatment. Then, it enters the water tank 3 through the first interface 21, the water diversion structure 25, the second pipe 16, the water inlet channel 8, and the water tank inlet 4. When the water volume reaches the set value, close the water inlet valve 19 and the water filling of the water tank 3 is completed. Process 2: When the main wash begins, the water tank 3 is drained, the first switch valve 24 is opened, and the first interface 21 of the water distribution structure 25 is connected to the fourth pipe 28. Water flows from the water tank 3 through the first switch valve 24, the third pipe 23, the first interface 21, the fourth pipe 28, and the inlet of the water cup 36 into the water cup 36. After the water cup 36 is filled with water before the washing is completed, the first switch valve 24 is closed. 3-10 minutes before the end of the main wash, the water inlet valve 19 is opened, and the water distribution structure 25 is switched to make the soft Water dispenser 20 is connected to water diversion structure 25 to replenish water in water tank 3. When the preset water volume is reached, water inlet valve 19 is closed. Second on-off valve 32 and water pump 26 are opened, and water diversion valve 35 is adjusted to the closed position. Water from the washing pump flows through water cup 36, second hot water pipe 33, second on-off valve 32, first hot water pipe 31, hot water flow path 9, and heat exchanger 7. It then flows through first flow path 1, inner tank connection port 5, and inner tank 40 and returns to water cup 36, completing the hot water cycle for washing. When water pump 26 is turned on, water in water tank 3 flows through first cold water pipe 22, water pump 26, second cold water pipe 27, cold water flow path 10, and is transported to heat exchanger 7. It then returns to water tank 3 through cold water outlet 6, completing the cold water cycle for water tank 3.The cold water cycle and the hot water cycle exchange heat in the heat exchanger 7, transferring the heat in the hot water cycle to the cold water cycle, and ultimately storing the heat in the water tank 3, after which the main wash sequence is completed; Process Three: When rinsing begins, the water inlet valve 19 is opened, and the water diversion structure 25 is switched to connect the water softener 20 with the fourth pipe 28. The tap water passes through the water inlet pipe 18, the water inlet valve 19, the flow meter 14, the water inlet channel 12, and the first pipe 15, enters the water softener 20 for softening, and then enters the water cup 36 through the first interface 21, the water diversion structure 25, the fourth pipe 28, and the inlet of the water cup 36. After the water inlet is completed, the water inlet valve 19 and the water diversion structure 25 are de-energized, and rinsing begins; Process Four: When the second rinse cycle begins, the first switch valve 24 is opened, the water tank 3 begins to drain water, and the water flows through the third pipe 23, the first switch valve 24, the fourth pipe 28, and the inlet of the water cup 36 into the water cup 36, completing the water filling of the water cup 36 before washing. Thereafter, the first switch valve 24 is closed, and the second rinse cycle begins until the washing is completed; when the drying cycle begins, the first process is repeated; through the above process, part of the heat of the dishwasher during the washing process is transferred to the rinsing stage, completing the heat reuse of the dishwasher. At the same time, the water tank 3 absorbs heat from the environment during the water storage stage at the beginning of drying, raising the internal water temperature to the ambient temperature, thereby reducing part of the heat energy consumed in the subsequent heating process, thereby achieving an energy-saving effect.

[0050] The present invention provides an energy-saving heat exchange system for dishwashers. Its overall structure is more compact, highly integrated, requires fewer connecting pipes, and reduces assembly time. Furthermore, the heat exchanger 7 used in the present invention's dishwasher heat exchange system is miniaturized, only one-sixth the size of a conventional heat exchanger, allowing for easy and flexible placement within the dishwasher's water tank 3 or base.

[0051] The utility model provides an energy-saving heat exchange system for a dishwasher, which can prevent backflow in the drainage pipe 17 of the dishwasher and prevent the inner door of the dishwasher from opening due to excessive pressure during high-temperature washing.

[0052] In the present invention, similar heat exchange system designs can be achieved by using heat exchangers with higher flow rates or larger equivalent diameters. Similar heat exchange system designs can also be achieved by using other processing methods to create the same type of micro-scale heat exchange structure. Using larger or more water tanks 3 can also achieve similar energy-saving effects.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0056] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0058] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A dishwasher, characterized in that: include: water cup (36); A water tank (3), wherein the water tank (3) has a water storage space; a first switch valve (24), one end of which is connected to the outlet of the water tank (3); A water distribution structure (25), the water distribution structure (25) having a first interface (21), a second interface and a third interface, the first interface (21) being connected to the other end of the first switch valve (24) and the water inlet channel (12), the second interface being connected to the inlet of the water tank (3), and the third interface being connected to the inlet of the water cup (36).

2. The dishwasher according to claim 1, characterized in that The dishwasher has at least two operating modes, and the water diversion structure (25) is configured to control the first interface (21) to selectively connect the second interface and the third interface according to the at least two operating modes.

3. The dishwasher according to claim 2, characterized in that The dishwasher has a first operating mode, in which the first switch valve (24) is closed and the first interface (21) and the second interface are connected for replenishing water to the water tank (3); And / or, the dishwasher further has a second operating mode, in which the first switch valve (24) is closed, and the first interface (21) and the third interface are connected for replenishing water in the water cup (36); And / or, the dishwasher further has a third operating mode, in which the first switch valve (24) is opened, and the first interface (21) and the third interface are connected to supply water to the water cup (36) through the water tank (3).

4. The dishwasher according to claim 1, wherein The dishwasher further comprises a water softener (20), wherein the water softener (20) is connected between the water inlet channel (12) and the first interface (21) and is used for supplying softened water to the first interface (21).

5. The dishwasher according to claim 4, characterized in that The water diversion structure (25) is installed on the water softener (20); and / or, at least a portion of the pipeline between the water diversion structure (25) and the water tank (3) is integrated into the water softener (20); and / or, at least a portion of the pipeline between the water diversion structure (25) and the water cup (36) is integrated into the water softener (20).

6. The dishwasher according to claim 4, characterized in that The water inlet channel (12) is integrated into the water tank (3), the water tank (3) is connected to the water softener (20), and the water inlet channel (12) is in communication with the soft water channel in the water softener (20); and / or the water softener (20) is provided with a water source interface, the water inlet channel (12) is integrated into the water tank (3), the water tank (3) is connected to the water softener (20), and the water inlet channel (12) is in communication with the water source interface.

7. The dishwasher according to any one of claims 4 to 6, characterized in that The water tank (3) is provided with at least one water tank (3) interface, the water softener (20) is provided with at least one water softener (20) interface, the water tank (3) is connected to the water softener (20), and the at least one water tank (3) interface and the at least one water softener (20) interface are docked.

8. The dishwasher according to any one of claims 1 to 6, characterized in that The dishwasher further comprises a heat exchanger (7), the heat exchanger (7) having a first flow channel and a second flow channel for heat exchange coordination, the first flow channel being connected to the water storage space in the water tank (3) to form a heat exchange circuit, and the two ends of the second flow channel being connected to the third interface and the outlet of the water cup (36) respectively.

9. The dishwasher according to claim 8, characterized in that The dishwasher further comprises a circulation pump (34) and a second switch valve (32), wherein the inlet of the circulation pump (34) is connected to the outlet of the water cup (36), and the second switch valve (32) is connected between the outlet of the circulation pump (34) and the second flow channel of the heat exchanger, and is used to connect or disconnect the second flow channel with the outlet of the water cup (36).

10. The dishwasher according to claim 9, characterized in that The dishwasher also has a fourth operating mode, in which the third interface is disconnected from the first interface (21), the circulation pump (34) is running and the second switch valve (32) is open, and the water in the water cup (36) is sent to the second flow channel of the heat exchanger; And / or, the dishwasher further has a fifth working mode, in which the third interface is connected to the first interface (21), the circulation pump (34) is reversed or stopped, and the second switch valve (32) is opened to flush the second flow channel of the heat exchanger.

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