WO2024108965A1 - 洗碗机 - Google Patents

洗碗机 Download PDF

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Publication number
WO2024108965A1
WO2024108965A1 PCT/CN2023/097599 CN2023097599W WO2024108965A1 WO 2024108965 A1 WO2024108965 A1 WO 2024108965A1 CN 2023097599 W CN2023097599 W CN 2023097599W WO 2024108965 A1 WO2024108965 A1 WO 2024108965A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
water
fan
return port
air duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/097599
Other languages
English (en)
French (fr)
Inventor
胡岚
曹红奎
耿介
朱喜青
李翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Original Assignee
Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202211468315.XA external-priority patent/CN118078169A/zh
Priority claimed from CN202223111273.2U external-priority patent/CN218651720U/zh
Application filed by Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd filed Critical Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority to EP23893065.5A priority Critical patent/EP4552545A4/en
Publication of WO2024108965A1 publication Critical patent/WO2024108965A1/zh
Priority to US19/214,901 priority patent/US20250281021A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4223—Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4246—Details of the tub
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/486—Blower arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door

Definitions

  • the present application relates to the technical field of cleaning equipment, and in particular to a dishwasher.
  • the dishwasher needs to use an exhaust device to draw the air out of the washing chamber to dry the dishes.
  • the air in the washing chamber is at a high temperature and high humidity. If the exhaust device is directly used to draw the air out of the washing chamber, the exhausted air will have a high temperature, which is dangerous and will produce more condensed water at the exhaust port or in the outside world.
  • the present application aims to solve the technical problems in the related art at least to a certain extent. To this end, the present application proposes a dishwasher that can effectively reduce the temperature of exhaust air and reduce the probability of condensation water forming at the exhaust port and outside the dishwasher.
  • a dishwasher comprising:
  • An exhaust device is arranged between the outer door and the inner door, and includes an air duct and a fan.
  • the air duct is suitable for being connected with the washing chamber of the dishwasher through the first through hole.
  • the fan is suitable for drawing the air in the washing chamber into the air duct and discharging the air out of the air duct.
  • the air duct is provided with a water return port, which is arranged upstream of the fan and is configured so that when the fan is working, outside air enters the air duct from the water return port and is suitable for discharging condensed water into the washing chamber.
  • the dishwasher includes an inner tank, the inner tank includes a bottom plate for enclosing the washing cavity, and the water return port is located above the bottom plate and arranged alternately with the bottom plate.
  • the water return port is located directly above the bottom plate.
  • the condensed water may drip from the water return port to the bottom plate.
  • the water return port is open downward.
  • the water return port is connected to the space between the inner door and the outer door.
  • the water return port is located below the inlet of the fan.
  • the opening direction of the water return port intersects with the air inlet direction of the fan in space.
  • the water return port is arranged adjacent to the fan.
  • the air duct includes a condensation section extending in an up-down direction, and the water return port is located below the condensation section.
  • the opening direction of the water return port is the same as the extending direction of the condensation section.
  • the air duct includes an air inlet section, a condensation section and an exhaust section which are connected in sequence, the air inlet section is constructed in an inverted U shape and is connected to the washing chamber, the fan is arranged in the exhaust section, and the return water port is arranged in the exhaust section or the condensation section.
  • the air duct includes an air inlet pipe forming the air inlet section, a condensation pipe forming the condensation section, and an exhaust pipe forming the exhaust section, and the fan and the return water port are arranged in the exhaust pipe.
  • the fan is located below 1/2 or 1/3 of the height of the inner door, and the exhaust section has an exhaust port, which is located below the inner door and the outer door.
  • the technical solution of the present application is to set an exhaust device between the outer door and the inner door to effectively extract the air in the washing chamber and dry the dishes.
  • the exhaust device has a water return port, which is not only used to discharge condensed water, but also allows outside air to enter the air duct through the water return port when the fan is working, and mix with the high-temperature and high-humidity air in the washing chamber drawn into the air duct, so that the exhaust temperature of the exhaust device can be reduced, and the existence of danger can be reduced.
  • the air when the air is mixed, the moisture in the air can be further removed, and the formed condensed water is discharged back to the washing chamber through the water return port, reducing the probability of condensed water being generated in the outside world.
  • By setting the water return port both the reflux of condensed water and the mixing of air to reduce the exhaust temperature are achieved.
  • FIG1 is a schematic diagram of the installation of an exhaust device in some embodiments.
  • FIG2 is a schematic diagram of the installation of an exhaust device in some embodiments.
  • FIG3 is a schematic diagram of an exhaust device in some embodiments.
  • FIG4 is an enlarged view shown by the dotted line in FIG3 ;
  • FIG5 is a schematic diagram of an air inlet section/air inlet pipe in some embodiments.
  • FIG. 6 is a schematic diagram of a condensation section/condensation tube in some embodiments.
  • Door body 1000 inner door 1100, first through hole 1110, outer door 1200; Exhaust device 2000; Air duct 2100, air inlet section/air inlet pipe 2110, air inlet 2111, condensation section/condensation pipe 2120, exhaust section/exhaust pipe 2130, exhaust outlet 2131, water return port 2132; Fan 2200; Inner tank 3000, washing chamber 3100, bottom plate 3110, rear side plate 3120, top plate 3130.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • fixation can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • a dishwasher is a device that can automatically wash tableware.
  • a dishwasher includes a base, an inner tank and a door body.
  • the inner tank is installed on the base.
  • the inner tank is provided with a washing chamber.
  • the door body is rotatably connected to the inner tank and/or the base to close or open the washing chamber.
  • a bowl basket that can be pulled out or pushed in is provided in the washing chamber.
  • the door body opens the washing chamber, the bowl basket can be pulled out of the washing chamber by the user.
  • the user can load tableware on the bowl basket.
  • the bowl basket is pushed into the washing chamber, and then the door body is rotated to close the washing chamber, and the washing chamber can be used for washing.
  • a spray arm is provided in the washing chamber, and the spray arm is connected to the outlet of the washing pump of the base through the water channel, and the inlet of the washing pump is connected to the water cup.
  • the water cup is located at the bottom of the inner tank and connected to the washing chamber, and the water in the washing chamber can flow to the water cup.
  • the water inlet valve of the dishwasher is opened, and water flows into the washing chamber.
  • the water inlet valve is closed to cut off the continued input of water.
  • the dishwasher controls the washing pump to start, and the washing pump sucks the water in the water cup and transports it to the spray arm.
  • a nozzle is provided on the spray arm.
  • the water flow is ejected from the nozzle of the spray arm under the action of pressure. Under the action of the reverse driving force of the water flow ejected from the nozzle of the spray arm, the spray arm is caused to rotate, so that the water flow is sprayed onto the tableware to clean the tableware.
  • the water flow ejected by the spray arm falls back to the washing chamber and then flows to the water cup.
  • the water cup is provided with a filter. After the water flow is filtered by the filter, it continues to circulate under the action of the washing pump until the current washing sequence ends.
  • a heating component is provided in the washing pump.
  • the washing pump sucks the water in the washing chamber, the water is heated synchronously. That is to say, the water flow sprayed by the spray arm has a higher temperature, thereby improving the cleaning effect of the tableware.
  • the dishes need to be dried. Since the washing chamber of the inner tank is in a high temperature and high humidity environment after the washing stage, an exhaust device is provided in the dishwasher in the related art.
  • the exhaust device directly draws out the air in the washing chamber and discharges it to the outside. Since the air in the washing chamber is in a high temperature and high humidity state at this time, the air discharged by the exhaust device has a high temperature, which may pose a risk of scalding.
  • the present application proposes a dishwasher that can reduce the probability of condensation water forming outside the dishwasher, and can reduce the exhaust temperature, thereby improving the user experience.
  • the dishwasher includes a door body 1000 , which is a structure for enclosing an inner tank 3000 , including an outer door 1200 and an inner door 1100 , and the inner door 1100 and the outer door 1200 are connected together by some connection means, such as the outer door 1200 and the inner door 1100 are superimposed together, and the periphery of the inner door 1100 and the periphery of the outer door 1200 are connected together by screwing.
  • the inner door 1100 and the outer door 1200 are sheet metal parts, which are suitable for larger dishwashers and have higher structural strength.
  • the inner door 1100 and the outer door 1200 are not limited to sheet metal parts, and can also be other materials.
  • the material of the inner door 1100 and the outer door 1200 can also be plastic material.
  • the inner door 1100 is provided with a first through hole 1110, for example, the first through hole 1110 is a circular through hole, and the exhaust device 2000 can be connected with the washing chamber 3100 through the first through hole 1110, thereby realizing the function of extracting and exhausting the air in the washing chamber 3100.
  • the exhaust device 2000 can be connected with the washing chamber 3100 through the first through hole 1110, that is, the air inlet 2111 of the exhaust device 2000 is penetrated in the first through hole 1110, thereby communicating with the washing chamber 3100, or the air inlet 2111 of the exhaust device 2000 is connected to the inner door 1100 so that the air inlet 2111 of the exhaust device 2000 is connected to the inner door 1100. It is connected to the first through hole 1110, and the first through hole 1110 is connected to the washing chamber 3100, so that the air inlet 2111 of the exhaust device 2000 is connected to the washing chamber 3100.
  • the exhaust device 2000 is a device for extracting air from the washing chamber 3100, and is installed between the inner door 1100 and the outer door 1200. That is to say, after the inner door 1100 and the outer door 1200 are connected, there is a certain space between the inner door 1100 and the outer door 1200, so that the exhaust device 2000 can be placed.
  • the exhaust device 2000 can be fixed only to the inner door 1100, or only to the outer door 1200, or to both the inner door 1100 and the outer door 1200.
  • the exhaust device 2000 includes a fan 2200 and an air duct 2100.
  • the fan 2200 provides the exhaust device 2000 with power to extract the air in the washing chamber 3100, and the air duct 2100 forms a path for air flow.
  • the air duct 2100 needs to be arranged to communicate with the washing chamber 3100.
  • the air duct 2100 can be penetrated by a first through hole 1110 to achieve communication with the washing chamber 3100.
  • the air duct 2100 is provided with an air inlet 2111, and the air inlet 2111 is communicated with the washing chamber 3100.
  • the air duct 2100 is provided with an air outlet 2131, and communicates with the outside world through the air outlet 2131.
  • the fan 2200 is arranged in the air duct 2100.
  • the air in the washing chamber 3100 can enter the air duct 2100 through the air inlet 2111, and then flow through the fan 2200 and continue to be discharged to the outside through the exhaust port 2131 of the air duct 2100. It can be understood that the fan 2200 can have various positions in the air duct 2100.
  • the fan 2200 can be arranged close to the air inlet 2111 and away from the exhaust port 2131, that is, close to the first through hole 1110; the fan 2200 can also be arranged close to the exhaust port 2131 and away from the air inlet 2111, that is, away from the first through hole 1110; the fan 2200 can also be arranged between the air inlet 2111 and the exhaust port 2131 of the air duct 2100, as long as the air in the washing chamber 3100 can be drawn into the air duct 2100 and discharged from the air duct 2100.
  • the air duct 2100 is provided with a water return port 2132, which is configured to discharge condensed water back into the washing chamber 3100. After the high-temperature and high-humidity air in the washing chamber 3100 enters the air duct 2100, it is equivalent to the high-temperature and high-humidity air being cooled, so that a certain amount of condensed water will be generated in the air duct 2100. If the condensed water in the air duct 2100 is not handled in time, the extraction efficiency will be affected and even the condensed water will flow out from the exhaust port 2131.
  • the condensed water flows into the washing chamber 3100 through the water return port 2132, and the condensed water flowing back into the washing chamber 3100 can be further discharged through the drainage pump of the dishwasher.
  • the inner tank 3000 of the dishwasher forms a washing chamber 3100, and a water cup is arranged below the inner tank 3000 of the dishwasher, and the water cup and the washing chamber 3100 are connected, that is, the condensed water flowing out of the return water port 2132 will eventually flow into the water cup and then be drained away, or the condensed water flowing out of the return water port 2132 can flow directly to the water cup through the setting of some conduits in the middle. Since the water cup and the washing chamber 3100 are connected, this situation is also regarded as the condensed water being discharged into the washing chamber 3100.
  • the return water inlet 2132 is also designed to allow outside air to freely enter the air duct 2100.
  • the return water inlet 2132 is arranged upstream of the fan 2200. It can be understood that, relative to the fan 2200, the fan 2200 has an inlet and an outlet. The operation of the fan 2200 allows air to enter from the inlet and be discharged from the outlet.
  • the path through which the air flows to the inlet can be regarded as upstream, and the path through which the air flows out from the outlet can be regarded as downstream.
  • the return water port 2132 is arranged upstream of the fan 2200, when the fan 2200 is working, the flow rate of the air in the air duct 2100 is faster and the pressure becomes smaller. Therefore, the outside air (the outside air has a lower temperature and humidity than the air in the washing chamber 3100) can enter the air duct 2100 from the return water port 2132, and then mix with the high-temperature and high-humidity air from the washing chamber 3100 in the air duct 2100. In this way, air mixing is achieved, which can reduce the exhaust temperature and avoid excessive exhaust temperature to cause harm to users, especially young children.
  • the outside air has a relatively low temperature and humidity, so when the two air streams are mixed in the air duct 2100, a certain amount of condensed water will be generated, and this part of condensed water can also be discharged from the air duct 2100 through the return water port 2132 to avoid flowing out at the exhaust port 2131. Since the high temperature and high humidity air from the washing chamber 3100 can reduce the moisture content in the air after mixing with the outside air, the air discharged through the exhaust port 2131 is not easy to form condensed water in the outside, thereby reducing the probability of condensed water forming in the outside and improving the user experience.
  • the fan 2200 extracts the air in the washing chamber 3100 and discharges it to the outside through the exhaust port 2131.
  • the position of the exhaust device 2000 such as digging a hole on the front of the outer door 1200 to allow the exhaust port 2131 to exhaust air; or digging a hole on the side of the outer door 1200 to allow the exhaust port 2131 to exhaust air, but these exhaust methods require digging holes, and the holes are within the user's field of vision, which can easily destroy the integrity of the door body 1000.
  • the exhaust port 2131 of the exhaust device 2000 is optionally set below the door body 1000, for example, between the door body 1000 and the skirting board, that is, the door body 1000 and the skirting board below the door body 1000 are provided on the front side of the dishwasher.
  • the setting of the skirting board avoids excessive hollowing out under the door body 1000, making the front side of the dishwasher more complete. Since the door body 1000 needs to be rotatable, there will be a certain gap between the door body 1000 and the skirting board.
  • the exhaust port 2131 can be located in the gap between the door body 1000 and the skirting board and open toward the front of the dishwasher (the side close to the user when in use is the front side, that is, the position of the door body 1000 is the front side, and the door body 1000 rotates from top to bottom to open the washing chamber 3100), so that the exhaust port 2131 is hidden in the user's field of vision without affecting the exhaust.
  • the fan 2200 is a device that can provide air extraction power.
  • the fan 2200 includes a motor and an impeller, which are connected by driving.
  • the impeller is arranged in the air duct 2100 so as to drive air to flow through the air duct 2100.
  • the impeller adopts a centrifugal wind wheel structure, so that the air duct 2100 can be made flatter, thereby reducing the space between the outer door 1200 and the inner door 1100 occupied by the exhaust device 2000.
  • the exhaust device 2000 has a water return port 2132, which is not only used to discharge condensed water, but also when the fan 2200 is working, the outside air can enter the air duct 2100 through the water return port 2132 and mix with the high-temperature and high-humidity air of the washing chamber 3100 sucked into the air duct 2100, so that the exhaust temperature of the exhaust device 2000 can be reduced, and the existence of danger can be reduced.
  • the moisture in the air can be further removed, and the formed condensed water is discharged back to the washing chamber 3100 through the water return port 2132, reducing the probability of condensed water being generated in the outside.
  • the water return port 2132 Through the setting of the water return port 2132, both the reflux of condensed water and the mixing of air to reduce the exhaust temperature are achieved.
  • the return water port 2132 is opened downward in the present embodiment.
  • the downward opening here can be directly downward or obliquely downward.
  • the opening forms an opening to connect with the air duct 2100.
  • the condensed water can flow out from the return water port 2132 under the action of gravity without the need for additional guide structure or suction device for suction, and the condensed water is not easy to gather, so that the overall structure of the exhaust device 2000 is simpler and more reliable, thereby reducing costs.
  • the high-temperature and high-humidity air will be cooled when encountering the wall of the air duct 2100, thereby forming condensed water on the wall of the air duct 2100.
  • the condensed water flows along the wall of the air duct 2100 to the water return port 2132 under the action of gravity and is discharged.
  • the air entering from the water return port 2132 collides with the high-temperature and high-humidity air from the washing chamber 3100 in the air duct 2100 and is disturbed, thereby generating condensed water on the wall of the corresponding air duct 2100, and the condensed water also flows out from the water return port 2132 under the action of gravity.
  • the dishwasher in combination with FIG. 1 and FIG. 2, includes an inner tank 3000, and the inner tank 3000 forms a washing chamber 3100.
  • the dishwasher has a top plate 3130, a rear side plate 3120, a left side plate, a right side plate and a bottom plate 3110.
  • the left side plate is arranged on one side of the rear side plate 3120
  • the right side plate is arranged on the other side of the rear side plate 3120.
  • the top plate 3130 is arranged on the top of the rear side plate 3120, the left side plate and the right side plate, and the bottom plate 3110 is arranged on the bottom of the rear side plate 3120, the left side plate and the right side plate, so as to form a washing chamber 3100 open to the front, and the door body 1000 can be rotatably arranged.
  • the washing chamber 3100 In front of the inner tank 3000, the washing chamber 3100 can be opened and closed.
  • the water return port 2132 is arranged above the bottom plate 3110 and is arranged alternately with the bottom plate 3110, so that the condensed water flowing out of the water return port 2132 can be received by the bottom plate 3110 from top to bottom, and then flow into the washing chamber 3100, which is simple and convenient, and effectively realizes the reflux of condensed water.
  • the water return port 2132 is arranged above the bottom plate 3110, and the above here can be directly above or obliquely above, as long as it can ensure that the condensed water flows to the bottom plate 3110 under the action of gravity and is received by the bottom plate 3110.
  • the projection of the water return port 2132 is located within the projection of the bottom plate 3110, and the front end of the bottom plate 3110 can extend forward to extend between the inner door 1100 and the outer door 1200, so that the water return port 2132 can flow back to the bottom plate 3110 in a shorter and faster path and be received by the bottom plate 3110, thereby improving the discharge efficiency of the condensed water and avoiding the generation of condensed water inside the door body 1000 due to heat exchange between the outside air and the condensed water during the process of the condensed water returning to the washing chamber 3100.
  • the condensed water can also flow back to the washing chamber 3100, but it is slightly inconvenient compared to the water return port 2132 being located directly above.
  • the projection of the water return port 2132 is not located within the projection of the bottom plate 3110, but is located in front of the projection of the bottom plate 3110.
  • the water return port 2132 needs to use some diversion structures to divert the condensed water to the bottom plate 3110 and be received by the bottom plate 3110.
  • Such a more complex diversion structure will increase the design difficulty of the exhaust device 2000, and may also occupy too much space of the outer door 1200 and the inner door 110, and even increase the thickness of the door body 1000.
  • the return water port 2132 is designed to be arranged alternately with the bottom plate 3110 without any direct contact, thereby further simplifying the structure and avoiding the increase in complexity of the exhaust device 2000 due to the setting of intermediate parts, so that the condensed water can return to the washing chamber 3100 at the fastest speed, avoiding condensation of the air in the door body 1000 during the reflux of the condensed water.
  • the water return port 2132 when the water return port 2132 is located directly above the bottom plate 3110, the water return port 2132 can be designed to be close to the top of the bottom plate 3110 and not in contact with the bottom plate 3110, so that the condensed water flowing out of the water return port 2132 will separate from the water return port 2132 under the action of gravity and drip into the bottom plate 3110.
  • the condensed water In the process of dripping into the bottom plate 3110, the condensed water will only be subject to the resistance of the air and will not be subject to other resistances, so that the reflux efficiency of the condensed water can be improved and the air in the condensed door body 1000 can be avoided.
  • a guide groove needs to be designed between the return water port 2132 and the bottom plate 3110.
  • the condensed water dripping from the return water port 2132 drips into the guide groove and is drained to the bottom plate 3110 through the guide groove.
  • this method adds a guide groove in the middle.
  • the guide groove will form resistance to the flow of condensed water, the reflux efficiency of the condensed water is reduced, and the complexity of the outer door 1200 and the inner door 1100 is increased to a certain extent.
  • the return water port 2132 is provided to allow the entry of outside air. It can be understood that the outside air has a lower temperature and humidity than the high-temperature and high-humidity air in the washing chamber 3100.
  • the return water port 2132 is connected to the space between the outer door 1200 and the inner door 1100.
  • the water return port 2132 is arranged between the inner door 1100 and the outer door 1200, and is directly connected to the space between the inner door 1100 and the outer door 1200.
  • the inner door 1100 and the outer door 1200 of the dishwasher are not sealed, that is, the space enclosed by the inner door 1100 and the outer door 1200 is connected to the external space outside the dishwasher. Therefore, when the air enters the air duct 2100 from the water return port 2132, the air in the space outside the dishwasher will also enter between the inner door 1100 and the outer door 1200.
  • the water return port 2132 is connected to the space between the outer door 1200 and the inner door 1100, so that the entire exhaust device can be 2000 is hidden between the inner door 1100 and the outer door 1200, making full use of the existing non-sealed connection structure between the outer door 1200 and the inner door 1100 to allow the entry of cold air, avoiding opening on the outer door 1200 to allow cold air to enter the air duct 2100, the structure is simpler, and the door body 1000 is more aesthetically pleasing.
  • the water return port 2132 is disposed below the inlet of the fan 2200 , which is more conducive to the discharge of condensed water and prevents the condensed water from flowing out through the fan 2200 .
  • condensed water forms on the wall of the air duct 2100.
  • the condensed water can flow toward the return water port 2132 under the action of gravity, and then flow out through the return water port 2132. Since the inlet of the fan 2200 is higher than the return water port 2132, the condensed water can more easily cross the inlet of the fan 2200 and flow into the return water port 2132 under the action of gravity.
  • the condensed water is not easy to gather at the inlet of the fan 2200, thereby avoiding entering the fan 2200.
  • the air inlet direction of the fan 2200 and the opening direction of the water return port 2132 intersect in space, thereby preventing condensed water from entering the fan 2200 to the greatest extent.
  • the flow direction of the air in the air duct 2100 is roughly the same as the flow direction of the condensed water. That is, the flow of air in the air duct 2100 will cause the condensed water to flow faster.
  • the air inlet direction of the fan 2200 and the opening direction of the return water port 2132 intersect, when the condensed water flows to a position opposite to the fan 2200, the air inlet of the fan 2200 is equivalent to a sudden change, so that the condensed water can continue to flow toward the return water port 2132 and be discharged under the action of inertia, reducing the probability of following the air flow into the fan 2200 and avoiding the condensed water from being discharged through the exhaust port 2131.
  • the opening direction of the return water port 2132 is from top to bottom, while the air inlet direction of the fan 2200 is perpendicular to the paper/screen.
  • the fan 2200 includes an impeller, for example, the impeller is a centrifugal wind wheel, and the air inlet direction of the fan 2200 is the extension direction of the rotation axis of the centrifugal wind wheel.
  • the main purpose of the fan 2200 is to extract the air in the washing chamber 3100.
  • the water return port 2132 is arranged adjacent to the fan 2200. In this way, when the fan 2200 is in operation, the path from the water return port 2132 to the inlet of the fan 2200 will be shortened, thereby more effectively introducing the outside air into the air duct 2100.
  • the adjacent arrangement here can be understood as being close to each other, for example, 3 cm, 5 cm, 8 cm, etc.
  • the outside air input into the air duct 2100 through the return water port 2132 has a lower temperature and humidity, which can neutralize the higher temperature and humidity air from the washing chamber 3100 in the air duct 2100.
  • the amount of air from the washing chamber 3100 is large. If the amount of outside air entering from the return water port 2132 is to be increased, the size of the return water port 2132 needs to be increased. However, in this case, the suction effect on the washing chamber 3100 may be reduced. Therefore, before the air in the washing chamber 3100 encounters the outside air entering from the return water port 2132, it needs to be condensed first, so as to reduce the temperature and humidity of the air from the washing chamber 3100 in advance.
  • the air duct 2100 includes a condensation section 2120.
  • the so-called condensation section 2120 means that the air from the washing chamber 3100 is condensed to a certain extent in the condensation section 2120, thereby reducing the moisture content and temperature in the air.
  • the condensation section 2120 needs to be provided with a condensation structure, for example, the structure of the condensation section 2120 is provided in a concave-convex shape, so as to increase the heat exchange area and effectively realize the condensation of the air in the air duct 2100.
  • the condensation section 2120 extends in the up-down direction, so that the condensed water generated in the condensation section 2120 will flow downward under the action of gravity, and the return water port 2132 is arranged below the condensation section 2120, so that the condensed water can flow to the return water port 2132 more easily for discharge.
  • the opening direction of the return water port 2132 is in the same direction as the extension direction of the condensation section 2120, so that the condensed water can be discharged directly through the return water port 2132, avoiding the condensed water from forming a circuitous path and accelerating the discharge efficiency of the condensed water.
  • the condensation section 2120 is a long strip structure extending in the up-down direction, and the return water port 2132 is arranged below the condensation section 2120 and is open downward, so that the condensed water can flow out of the return water port 2132 from top to bottom.
  • the condensed water generated in the condensation section 2120 breaks away from the wall of the condensation section 2120, Under the action of gravity and airflow, the condensed water can be directly discharged through the water return port 2132, effectively accelerating the drainage efficiency of the condensed water.
  • the air duct 2100 includes an air inlet section 2110, a condensation section 2120 and an exhaust section 2130, the air inlet section 2110, the condensation section 2120 and the exhaust section 2130 are connected in sequence, the air inlet section 2110 is provided with an air inlet 2111, the exhaust section 2130 is provided with an exhaust port 2131, the air inlet section 2110 is connected to the washing chamber 3100 through the air inlet 2111, the fan 2200 is provided in the exhaust section 2130, and when the fan 2200 is working, the air in the washing chamber 3100 first enters the inlet 2111, and the exhaust section 2130 is provided with an exhaust port 2131.
  • the air flows through the air inlet section 2110, and then flows through the condensation section 2120 and the exhaust section 2130, and is finally discharged. Since the air inlet section 2110 is constructed as an inverted U-shaped structure, when the dishwasher is in a washing state, even if the water flow sprayed by the spray arm of the dishwasher enters the air inlet section 2110 through the air inlet 2111, since the air inlet section 2110 is an inverted U-shape, the part of the air inlet section 2110 where the air inlet 2111 is provided extends from bottom to top. Therefore, the water entering through the air inlet 2111 will flow back into the washing chamber 3100 instead of entering the condensation section 2120.
  • the return water port 2132 can be set in the exhaust section 2130 or the condensation section 2120. Since the main function of the condensation section 2120 is condensation, setting the return water port 2132 in the exhaust section 2130 can avoid adverse effects on air condensation.
  • the air duct 2100 includes an air inlet pipe 2110, a condenser pipe 2120 and an exhaust pipe 2130.
  • the air inlet pipe 2110 forms an air inlet section 2110
  • the condenser pipe 2120 forms a condenser section 2120
  • the exhaust pipe 2130 forms an exhaust section 2130.
  • the air inlet pipe 2110, the condenser pipe 2120 and the exhaust pipe 2130 are manufactured separately and connected together.
  • the air inlet pipe 2110 and the condenser pipe 2120, and the condenser pipe 2120 and the exhaust pipe 2130 can be connected in a variety of ways, such as plugging, snapping, welding, screwing, etc., so that it is more convenient to prepare the entire air duct 2100.
  • the air inlet pipe 2110, the condenser pipe 2120 and the exhaust pipe 2130 each can be connected by two pieces of structure, such as welding, so that a hollow structure for air flow can be formed.
  • the fan 2200 is located below the height of 1/2 or 1/3 of the inner door 1100, that is, the fan 2200 is at a distance of 1/2 from the inner door 1100.
  • the distance from the bottom edge is less than or equal to 1/2 or 1/3 of the height of the inner door 1100, so that the path from the fan 2200 to the exhaust port 2131 will become shorter.
  • a shorter path can reduce the probability of air condensation in this path, so that the air can be discharged to the external environment more quickly, thereby further avoiding the possibility of condensation water forming at the exhaust port 2131.
  • the air discharged to the external environment has a greatly reduced moisture content, and is not easy to produce condensation water when it is fully mixed with the external environment air.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

一种洗碗机，包括外门(1200)、内门(1100)和设于外门(1200)和内门(1100)之间的排风装置(2000)，排风装置(2000)包括风道(2100)和风机(2200)，风道(2100)适于通过内门(1100)设有的第一通孔(1110)与洗碗机的洗涤腔(3100)连通，风道(2100)内风机(2200)的上游设有回水口(2132)且被配置为在风机(2200)工作时外界空气自回水口(2132)进入风道(2100)以及适于将冷凝水排放至洗涤腔(3100)。

Description

洗碗机
相关申请的交叉引用
本申请基于申请号为202211468315.X、202223111273.2，申请日为2022年11月22日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及清洗设备技术领域，特别涉及一种洗碗机。
背景技术
洗碗机在干燥阶段，需要使用排风装置将洗涤腔中的空气抽排出洗涤腔，如此实现对餐具的干燥，但是在干燥阶段的前期，洗涤腔的空气处于高温高湿的状态，直接将排风装置抽排出洗涤腔，排出的空气具有较高的温度，存在一定的危险，并且会在排风口处或在外界产生较多的冷凝水。
发明内容
本申请旨在至少在一定程度上解决相关技术中的技术问题。为此本申请提出一种洗碗机，该洗碗机能有效降低排出空气的温度以及降低在排风口处和洗碗机外形成冷凝水的概率。
为实现上述目的，本申请公开了一种洗碗机，所述洗碗机包括：
外门；
内门，所述内门与所述外门连接，设有第一通孔；以及
排风装置，所述排风装置设于所述外门和所述内门之间，包括风道和风机，所述风道适于通过所述第一通孔与所述洗碗机的洗涤腔连通，所述风机适于将所述洗涤腔的空气抽入所述风道并排出所述风道，所述风道设有回水口，所述回水口设于所述风机的上游，被配置为在所述风机工作时外界空气自所述回水口进入所述风道以及适于将冷凝水排放至所述洗涤腔。
在本申请的一些实施例中，所述洗碗机包括内胆，所述内胆包括用于围设所述洗涤腔的底板，所述回水口位于所述底板的上方且与所述底板相间设置。
在本申请的一些实施例中，所述回水口位于所述底板正上方。
在本申请的一些实施例中，所述冷凝水可自所述回水口滴落至所述底板。
在本申请的一些实施例中，所述回水口朝下敞开。
在本申请的一些实施例中，所述回水口与所述内门和所述外门之间的空间连通。
在本申请的一些实施例中，所述回水口位于所述风机的进口的下方。
在本申请的一些实施例中，所述回水口的敞开方向与所述风机的进风方向在空间上相交。
在本申请的一些实施例中，所述回水口邻近所述风机设置。
在本申请的一些实施例中，所述风道包括沿上下方向延伸的冷凝段，所述回水口位于所述冷凝段的下方。
在本申请的一些实施例中，所述回水口的敞开方向与所述冷凝段的延伸方向同向。
在本申请的一些实施例中，所述风道包括依次连通的进风段、冷凝段和排风段，所述进风段构造成倒U型且与所述洗涤腔连通，所述风机设于所述排风段，所述回水口设于所述排风段或所述冷凝段。
在本申请的一些实施例中，所述风道包括形成所述进风段的进风管、形成所述冷凝段的冷凝管和形成所述排风段的排风管，所述风机和所述回水口设于所述排风管。
在本申请的一些实施例中，所述风机处于所述内门的1/2高度或1/3高度以下，所述排风段具有排风口，所述排风口位于所述内门和所述外门的下方。
本申请技术方案通过在外门和内门之间设置排风装置，有效抽排洗涤腔中的空气，实现餐具的干燥。其中，排风装置具有回水口，该回水口不仅用于排放冷凝水，而且在风机工作时外界空气可通过回水口进入到风道中，和抽入风道中的洗涤腔的高温高湿空气混合，如此可以降低排风装置的排风温度，降低危险的存在，并且，在空气发生混合时能进一步的脱去空气中的水分，所形成的冷凝水通过回水口排回洗涤腔，降低在外界产生冷凝水的概率，通过回水口的设置，既实现了冷凝水的回流，也实现了混风以降低排风温度。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为一些实施例中排风装置安装示意图；
图2为一些实施例中排风装置安装示意图；
图3为一些实施例中排风装置示意图；
图4为图3中虚线所示放大图；
图5为一些实施例中进风段/进风管示意图；
图6为一些实施例中冷凝段/冷凝管示意图。
附图标记：
门体1000，内门1100，第一通孔1110，外门1200；
排风装置2000；
风道2100，进风段/进风管2110，进风口2111，冷凝段/冷凝管2120，排风段/排风
管2130，排风口2131，回水口2132；
风机2200；
内胆3000，洗涤腔3100，底板3110，后侧板3120，顶板3130。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
另外，在本申请中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
洗碗机是一种可以进行自动清洗餐具的设备，一般来说洗碗机包括有底座、内胆和门体，内胆安装到底座上，内胆设有洗涤腔，门体与内胆和/或底座可转动连接，以封闭或打开洗涤腔，洗涤腔内设置有可拉出或推入的碗篮，在门体打开洗涤腔时，碗篮可被用户拉出洗涤腔，此时用户可在碗篮上装载餐具，装载完毕后再将碗篮推入洗涤腔，然后转动门体封闭洗涤腔，洗涤腔即可进行洗涤工作。
洗涤腔内设置有喷臂，喷臂通过水路和底座的洗涤泵的出口连通，而洗涤泵的进口则和水杯连通，水杯位于内胆的底部与洗涤腔连通，洗涤腔中的水可流向水杯。洗碗机开始工作时，洗碗机的进水阀开启，水流入到洗涤腔中，当洗涤腔中的水位达到预设的水位时，进水阀关闭从而切断水的继续输入。洗碗机控制洗涤泵启动，洗涤泵将水杯中的水进行抽吸并输送到喷臂，喷臂上设置有喷嘴，水流在压力的作用下从喷臂的喷嘴中射出，在喷臂的喷嘴中射出的水流的反向驱动力的作用下，促使喷臂旋转，如此将水流喷射到餐具上从而对餐具进行清洗。喷臂喷出的水流落回到洗涤腔继而流向水杯，水杯设置有过滤器，水流经过过滤器的过滤后继续在洗涤泵的作用下进行循环，直至当前洗涤时序结束。
为了提高对餐具的清洗效果，一般而言，在洗涤时序进行的过程中，需要对水进行加热，例如在洗涤泵中设置有加热组件，洗涤泵抽吸洗涤腔中的水时会同步将水加热，也就是说，喷臂喷射出的水流具有较高的温度，从而提高对餐具的清洗效果。
在洗涤阶段结束后需要对餐具进行干燥，由于在洗涤阶段结束后内胆的洗涤腔处于高温高湿的环境，因此相关技术中在洗碗机中设置了排风装置，排风装置直接抽排洗涤腔中的空气并排放至外界，由于此时的洗涤腔中的空气处于高温高湿的状态，排风装置排出的空气具有较高的温度，可能会存在烫伤的风险，并且高温高湿的空气排放至外界时遇冷会形成冷凝水，例如在排风装置的排风口处形成冷凝水，冷凝水沿着洗碗机的外表面流到地面，或者排风装置排风遇到障碍物时会在障碍物上形成冷凝水，例如在地面形成冷凝水，如此不仅降低用户体验，还存在一定的危险。为此，本申请提出一种洗碗机，该洗碗机可以降低在洗碗机外形成冷凝水的概率，并且能降低排风温度，提升用户体验。
结合图1至图4所示，在本申请的一些实施例中，洗碗机包括门体1000，门体1000为用于封闭内胆3000的结构，包括由外门1200和内门1100，内门1100和外门1200之间采用一些连接的手段结合在一起，例如外门1200和内门1100叠合在一起，内门1100的周边和外门1200的周边通过打螺钉的方式连接在一起。一般而言，内门1100和外门1200为钣金件，适用于较大型的洗碗机，具有较高的结构强度。但是，内门1100和外门1200不限于钣金件，还可以是其他材质，例如当洗碗机为小型的台式机时，内门1100和外门1200的材质还可以为塑料材质。
内门1100上设置有第一通孔1110，例如第一通孔1110为圆形通孔，排风装置2000便可通过第一通孔1110和洗涤腔3100连通，从而实现抽排洗涤腔3100中的空气的功能。可以理解的是，排风装置2000通过第一通孔1110和洗涤腔3100连通可以为，排风装置2000的进风口2111穿设于第一通孔1110中，从而和洗涤腔3100连通，还可以是排风装置2000的进风口2111与内门1100连接以使得排风装置2000的进风口2111 和第一通孔1110连通，而第一通孔1110与洗涤腔3100连通，如此实现排风装置2000的进风口2111和洗涤腔3100连通。
排风装置2000为用于抽排洗涤腔3100中的空气的装置，其安装到内门1100和外门1200之间，也就是说内门1100和外门1200连接后，内门1100和外门1200之间具有一定的空间，如此可以用来放置排风装置2000。排风装置2000可以仅固定到内门1100，也可以仅固定到外门1200，还可以同时固定到内门1100和外门1200。
排风装置2000包括有风机2200和风道2100，风机2200提供排风装置2000抽排洗涤腔3100中的空气的动力，风道2100形成空气流动的路径。具体为，风道2100需要设置为和洗涤腔3100连通，如前所述，风道2100可以穿设第一通孔1110从而实现和洗涤腔3100的连通，例如风道2100设有进风口2111，进风口2111和洗涤腔3100连通，风道2100设有排风口2131，通过排风口2131与外界连通。风机2200设置在风道2100中，在风机2200工作时，风道2100内会形成负压，因此洗涤腔3100中的空气就可以通过进风口2111进入到风道2100中，继而流经风机2200而继续通过风道2100的排风口2131排出至外界。可以理解的是，风机2200在风道2100中的位置可以有多种，例如风机2200靠近进风口2111设置而远离排风口2131，即靠近第一通孔1110设置；也可以是风机2200靠近排风口2131设置而远离进风口2111，即远离第一通孔1110；还可以是风机2200设置在风道2100的进风口2111和排风口2131之间，只要能实现将洗涤腔3100中的空气抽入风道2100并排出风道2100即可。
风道2100设置有回水口2132，回水口2132被配置为可以将冷凝水排回洗涤腔3100中，由于洗涤腔3100中的高温高湿空气进入风道2100后，相当于高温高湿空气遇冷，从而在风道2100内会产生一定的冷凝水，而不及时处理风道2100内的冷凝水便会影响抽排效率甚至这些冷凝水从排风口2131流出。因此通过设置回水口2132，当风道2100中产生冷凝水时，冷凝水通过回水口2132流入洗涤腔3100，流回洗涤腔3100中的冷凝水可通过洗碗机的排水泵进一步排走。可以理解的是，洗碗机的内胆3000形成洗涤腔3100，洗碗机的内胆3000下方设置有水杯，水杯和洗涤腔3100连通，也就是说回水口2132流出的冷凝水最终会流到水杯继而被排水被排走，也可以是回水口2132流出的冷凝水可以通过中间的一些导管的设置而将冷凝水直接流至水杯，由于水杯和洗涤腔3100连通，这种情况也视为冷凝水排放至洗涤腔3100。
回水口2132除了具有将冷凝水排放到洗涤腔3100外，其还被设计成可供外界空气自由进入到风道2100中，具体为回水口2132设置在风机2200的上游，可以理解的是，相对于风机2200来说，风机2200具有进口和出口，风机2200动作使得空气从进口进入而从出口排出，空气流动至进口所经过的路径均可视为上游，而空气自出口流出的路径均可视为下游。由于回水口2132设置在风机2200的上游，因此当风机2200工作时，风道2100内的空气的流速较快，压强变小，因此外界空气(外界空气时相对于洗涤腔3100中的空气而言，具有较低的温度和湿度)可以从回水口2132进入到风道2100中，从而和风道2100中的来自洗涤腔3100中的高温高湿空气混合，如此实现空气的混合，从而可以降低排风温度，避免排风温度过高而对用户尤其是幼童形成伤害。
此外，相对于洗涤腔3100的高温高湿的空气，外界空气相对来说具有较低的温度和湿度，这样当两股空气在风道2100中混合时会产生一定的冷凝水，这部分冷凝水也可以通过回水口2132而排出风道2100，避免在排风口2131处流出。由于来自洗涤腔3100的高温高湿的空气在和外界空气混合后可以降低空气中的水分含量，由此，通过排风口2131排出的空气不容易在外界形成冷凝水，从而可以降低在外界形成冷凝水的概率，提高用户使用体验。
风机2200抽排洗涤腔3100中的空气并通过排风口2131排出至外界，排风口2131 的设置位置可以有多种，例如在外门1200正面挖孔，从而供排风口2131排风；或者在外门1200的侧面挖孔而供排风口2131排风，但是这些排风方式需要进行挖孔，挖孔处于用户的视野范围内，容易破坏门体1000的整体性，为此，可选地，排风装置2000的排风口2131设置在门体1000的下方，例如位于门体1000和踢脚板之间，也就是说，在洗碗机的前侧具有门体1000和位于门体1000下方的踢脚板，踢脚板的设置避免门体1000下方过于镂空，使得洗碗机的前侧更完整，又由于门体1000需要设置呈可转动的，因此门体1000和踢脚板之间会存在一定的间隙，排风口2131可处于门体1000和踢脚板之间的间隙中朝向洗碗机的前方敞开(以用户使用时靠近用户的为前侧，即门体1000所在的方位为前侧，门体1000自上而下转动以打开洗涤腔3100)，这样排风口2131便隐藏于用户的视野范围内而又不影响排风。
可以理解的是，风机2200是一种能提供抽排空气动力的装置，例如，风机2200包括由电机和叶轮，电机和叶轮驱动连接，叶轮设置在风道2100中从而可以带动空气在流经风道2100。可选地，叶轮采用的是离心风轮的结构，这样就可以使得风道2100做得更加扁平，从而降低排风装置2000占用的外门1200和内门1100之间的空间。
由上可见，通过在外门1200和内门1100之间设置排风装置2000，有效抽排洗涤腔3100中的空气，实现餐具的干燥。其中，排风装置2000具有回水口2132，该回水口2132不仅用于排放冷凝水，而且在风机2200工作时外界空气可通过回水口2132进入到风道2100中，和抽入风道2100中的洗涤腔3100的高温高湿空气混合，如此可以降低排风装置2000的排风温度，降低危险的存在，并且，在空气发生混合时能进一步的脱去空气中的水分，所形成的冷凝水通过回水口2132排回洗涤腔3100，降低在外界产生冷凝水的概率，通过回水口2132的设置，既实现了冷凝水的回流，也实现了混风以降低排风温度。
结合图3和图4所示，在本申请的一些实施例中，为了便于冷凝水从回水口2132流出，在本实施例中将回水口2132朝下敞开，这里的朝下敞开可以是正下方，也可以是斜下方，敞开即形成开口以和风道2100连通，这样当风道2100中形成有冷凝水时，冷凝水可以在重力的作用下从回水口2132流出，而不需要额外的导流结构或者抽吸装置进行抽吸，冷凝水也不容易形成聚集，使得排风装置2000的整体结构更加简单可靠，降低成本。
例如，在来自洗涤腔3100中的空气进入到风道2100中时，这些高温高湿的空气遇到风道2100的壁时会遇冷从而在风道2100的壁上形成冷凝水，冷凝水在重力的作用下沿着风道2100的壁流动至回水口2132而排出。而从回水口2132进入的空气和来自洗涤腔3100的高温高湿空气在风道2100中碰撞而发生扰动，从而使得相对应的风道2100的壁产生冷凝水，这些冷凝水也在重力的作用下从回水口2132流出。
可以理解的是，当冷凝水自回水口2132排出时，此时风道2100内的空气依然是处于流动状态的，因此外界空气会在压强的作用下自回水口2132进入到风道2100中，也就是说，冷凝水的排放和外界空气的进入是同步进行的，冷凝水的排放不影响外界空气通过回水口2132进入风道2100中，外界空气通过回水口2132进入风道2100中也不影响冷凝水的排放，如此能加快洗涤腔3100中的空气的抽吸效率，从而提高对餐具的干燥效率。
可选地，在本申请一些实施例中，结合图1和图2所示，洗碗机包括由内胆3000，内胆3000形成洗涤腔3100，例如，洗碗机具有顶板3130、后侧板3120、左侧板、右侧板和底板3110，左侧板设于后侧板3120的一侧，右侧板设于后侧板3120的另一侧，顶板3130设于后侧板3120、左侧板和右侧板的顶部，底板3110设于后侧板3120、左侧板和右侧板的底部，如此形成一个朝向前方敞开的洗涤腔3100，门体1000可转动设置 在内胆3000的前方，从而可以打开和封闭洗涤腔3100。正是如此，将回水口2132设置在底板3110的上方并且和底板3110相间设置，这样从回水口2132流出的冷凝水可以自上而下被底板3110承接，从而流动到洗涤腔3100中，简单便捷，有效实现冷凝水的回流。
具体地，回水口2132设置在底板3110的上方，这里的上方可以是正上方，也可以是斜上方，只要能保证冷凝水在重力的作用下流动至底板3110而被底板3110所承接即可。例如回水口2132位于底板3110的正上方时，也就是在洗碗机的自上而下的投影中，回水口2132的投影位于底板3110的投影内，可以是底板3110的前端朝向前方延伸以伸入到内门1100和外门1200之间，这样回水口2132便可以以更短更快的路径流回到底板3110中而被底板3110承接，从而提高冷凝水的排放效率，避免冷凝水在回流至洗涤腔3100的过程中外界空气与冷凝水换热而在门体1000内部产生冷凝水。
当回水口2132不是位于底板3110的正上方而是位于底板3110的斜上方时，同样能实现冷凝水回流到洗涤腔3100，但是相对于回水口2132位于正上方，会稍显不便。例如在洗碗机的自上而下的投影中，回水口2132的投影不是位于底板3110的投影内，而是位于底板3110的投影的前方，这样回水口2132便需要通过一些导流结构而将冷凝水导流到底板3110上而被底板3110承接，这样更为复杂的导流结构会增加排风装置2000的设计难度，还可能会占用过多的外门1200和内门1100的空间，甚至使得门体1000的厚度变大。
可选地，结合图1和图2所示，在一些实施例中，均将回水口2132设计成和底板3110之间是相间设置并且没有任何直接的接触，如此进一步简化结构，避免中间件的设置而增加排风装置2000的复杂度，使得冷凝水能以最快的速度回到洗涤腔3100，避免在冷凝水回流的过程中对门体1000内的空气产生冷凝。
例如，当回水口2132位于底板3110的正上方时，回水口2132可以设计的靠近底板3110的上方，和底板3110非接触，这样回水口2132中流出的冷凝水，在重力的作用下脱离回水口2132，而滴落到底板3110中，冷凝水在滴落到底板3110的过程中只受到空气的阻力而不会受到其它的阻力，如此能提高冷凝水的回流效率，避免冷凝门体1000中的空气。并且在洗碗机的干燥阶段结束后，回水口2132至底板3110的冷凝水滴落路径不会有冷凝水的残留，在洗碗机的门体1000转动开启后不存在冷凝水流动至门体1000其它部位的可能。
再例如，当回水口2132位于底板3110的斜上方时，回水口2132和底板3110之间需要设计引导槽，自回水口2132滴落的冷凝水滴落至引导槽而通过引导槽引流至底板3110，这种方式相对于冷凝水直接滴落至底板3110，中间增加了引导槽，引导槽会对冷凝水的流动形成阻力，冷凝水的回流效率有所降低，并且在一定程度上增加了外门1200和内门1100的复杂度。
如前文所述的，为了降低风道2100中的来自洗涤腔3100中的高温高湿空气的温度和湿度，通过设置回水口2132实现外界空气的进入，可以理解的是，外界空气是相对于洗涤腔3100的高温高湿空气而言的，具有较低的温度和湿度，为了便于外界空气通过回水口2132进入到风道2100内，结合图1和图2所示，在一些实施例中，回水口2132和外门1200和内门1100之间的空间连通，也就是说，回水口2132设置在内门1100和外门1200之间，直接和内门1100和外门1200之间的空间连通，又由于，一般来说，洗碗机的内门1100和外门1200之间并非是密封连接的，也就是说，内门1100和外门1200所围合的空间和洗碗机以外的外界空间连通，因此当空气自回水口2132进入到风道2100内时，洗碗机以外的空间的空气也会进入到内门1100和外门1200之间。
将回水口2132连通外门1200和内门1100之间的空间，如此就可以将整个排风装置 2000隐藏在内门1100和外门1200之间，充分利用现有外门1200和内门1100之间的非密封连接结构实现冷空气的进入，避免在外门1200上开口才能使得冷空气进入到风道2100内，结构更加简单，门体1000的美观性更高。
可选地，结合图3和图4所述，在一些实施例中，将回水口2132设置到风机2200的进口的下方，如此更有利于冷凝水的排放，避免冷凝水通过风机2200流出。
例如，风道2100的壁形成冷凝水，冷凝水可以在重力的作用下朝向回水口2132流动，继而通过回水口2132流出，由于风机2200的进口相对于回水口2132的位置更高，因此冷凝水在重力的作用下更容易越过风机2200的进口而流动回水口2132，冷凝水不容易在风机2200的进口处形成汇聚，从而避免进入到风机2200中。
结合图3和图4所示，在一些实施例中，风机2200的进风方向和回水口2132的敞开方向在空间上相交，从而可以最大限度的避免冷凝水进入到风机2200中。
例如，在风道2100中形成冷凝水而沿着重力的方向流向回水口2132时，此时在风机2200的作用下，风道2100中的空气的流动方向大致和冷凝水的流动方向相同，也就是说，风道2100中的空气的流动会促使冷凝水加快流动，由于风机2200的进风方向和回水口2132的敞开方向相交，当冷凝水流动至与风机2200相对的位置时，风机2200的进风相当于突然改变，如此冷凝水可以在惯性的作用下继续流向回水口2132而排出，降低跟随气流进入到风机2200中的概率，避免冷凝水通过排风口2131排出。例如，图3和图4所示，回水口2132的敞开方向自上而下，而风机2200的进风方向垂直于纸面/屏幕
可以理解的是，风机2200包括有叶轮，例如叶轮为离心风轮，风机2200的进风方向即为离心风轮的转动轴线的延伸方向。
可选地，风机2200主要的目的在于抽取洗涤腔3100中的空气，为了使得外界空气能有效通过回水口2132进风到风道2100内，将回水口2132邻近到风机2200设置，这样，当风机2200动作时，从回水口2132到风机2200的进口的路径会缩短，从而能更有效地引入外界空气到风道2100内。这里的邻近设置可以理解为相互靠近，例如相距3cm、5cm、8cm等。
如前文所说的，通过回水口2132输入风道2100中的外界空气具有较低的温度和湿度，如此可以中和风道2100中来自洗涤腔3100的较高温度和湿度的空气，但是在风机2200的作用下，来自洗涤腔3100的空气的量较大，若要增加从回水口2132进入的外界空气的量，那么回水口2132的尺寸就需要增加，但是这样的情况下，对洗涤腔3100的抽吸效果可能就会降低，因此在洗涤腔3100的空气遇到从回水口2132进入的外界空气前，需要先进行冷凝，如此提前降低来自洗涤腔3100中的空气的温度和湿度，如此，再和来自回水口2132的外界空气混合时，能最大限度地降低空气的温度和湿度。结合图3所示，在一些实施例中，风道2100包括有冷凝段2120，所谓冷凝段2120，即来自洗涤腔3100的空气在冷凝段2120中被一定程度上的冷凝，从而降低空气中的水分含量和温度。也就是说，冷凝段2120需要设置出冷凝结构，例如冷凝段2120的结构设置为凹凸状，如此增加换热面积，有效实现对风道2100内的空气的冷凝。
冷凝段2120沿上下方向延伸，这样在冷凝段2120中产生的冷凝水会在重力的作用下向下流动，而将回水口2132设置在冷凝段2120的下方，便可实现冷凝水更容易流动至回水口2132排出。可选地，回水口2132的敞开方向和冷凝段2120的延伸方向同向，这样冷凝水能直接通过回水口2132而排出，避免冷凝水形成迂回的路径，加快冷凝水的排放效率。例如，如图3和图6所示，冷凝段2120为沿上下方向延伸的长条状结构，回水口2132设置在冷凝段2120的下方并且朝向下方敞开，这样冷凝水就可以自上而下地流出回水口2132，特别是，当冷凝段2120内产生的冷凝水脱离冷凝段2120的壁时， 这些冷凝水在重力和气流的作用下能直接穿过回水口2132而排出，有效加快冷凝水的排水效率。
结合图3、图5和图6所示，在一些实施例中，风道2100包括进风段2110、冷凝段2120和排风段2130，进风段2110、冷凝段2120和排风段2130依次连通，进风段2110设置有进风口2111，排风段2130设置有排风口2131，进风段2110通过进风口2111和洗涤腔3100连通，风机2200设置在排风段2130，风机2200工作时，洗涤腔3100的空气通过先进入到进风段2110，继而流经冷凝段2120和排风段2130，最终被排出，由于进风段2110被构造成倒U型的结构，如此在洗碗机处于洗涤状态时，洗碗机的喷臂喷射的水流即使通过进风口2111进入到进风段2110，由于进风段2110为倒U型，设置有进风口2111的进风段2110的那一部位是自下而上延伸的，因此通过进风口2111进入的水会流回到洗涤腔3100中，而不会进入到冷凝段2120中。
回水口2132则可以设置到排风段2130或冷凝段2120中，由于冷凝段2120的主要作用在于冷凝，因此将回水口2132设置到排风段2130中可以避免对空气冷凝产生不利影响。
具体地，风道2100包括进风管2110、冷凝管2120和排风管2130，进风管2110形成进风段2110，冷凝管2120形成冷凝段2120，排风管2130形成排风段2130，进风管2110、冷凝管2120和排风管2130分别制造而连接在一起，进风管2110和冷凝管2120之间，冷凝管2120和排风管2130之间可以采用多种的连接方式实现连接，例如采用插接、卡扣、焊接、螺接等方式实现连接，如此更加方便整个风道2100的制备。而对于进风管2110，冷凝管2120和排风管2130，各自可以采用两片结构连接而成，例如焊接而成，这样就可以形成供空气流动的中空的结构。
经过冷凝段2120的冷凝和通过回水口2132引入外界空气，使得风道2100排出的空气的水分含量大大降低，在排风口2131和外界形成冷凝水的几率大大降低，但是最终排出的空气中依然是含有水分的，不能达到完全干燥的效果，为了进一步地降低冷凝水的形成，结合图2所示，在一些实施例中，风机2200处于内门11001/2高度或1/3高度以下，即风机2200距离内门1100底边(不包括内门1100两侧的铰链)的距离小于等于内门1100高度的1/2或1/3，这样从风机2200到排风口2131的路径将会变得更短，更短的路径能降低空气在此路径内冷凝的概率，如此将空气更快速地排放到外界环境，从而进一步避免在排风口2131处形成冷凝水可能，而排放到外界环境中的空气，由于水分含量已经大大降低，和外界环境空气充分混合时不容易产生冷凝水。
上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (13)

  1. 一种洗碗机，其中，包括：
    外门；
    内门，与所述外门连接，设有第一通孔；以及
    排风装置，设于所述外门和所述内门之间，包括风道和风机，所述风道适于通过所述第一通孔与所述洗碗机的洗涤腔连通，所述风机适于将所述洗涤腔的空气抽入所述风道并排出所述风道，所述风道设有回水口，所述回水口设于所述风机的上游，被配置为在所述风机工作时外界空气自所述回水口进入所述风道以及适于将冷凝水排放至所述洗涤腔。
  2. 如权利要求1所述的洗碗机，其中，所述洗碗机包括内胆，所述内胆包括用于围设所述洗涤腔的底板，所述回水口位于所述底板的上方且与所述底板相间设置。
  3. 如权利要求2所述的洗碗机，其中，所述回水口位于所述底板正上方。
  4. 如权利要求3所述的洗碗机，其中，所述冷凝水可自所述回水口滴落至所述底板。
  5. 如权利要求1所述的洗碗机，其中，所述回水口朝下敞开。
  6. 如权利要求1所述的洗碗机，其中，所述回水口与所述内门和所述外门之间的空间连通。
  7. 如权利要求1所述的洗碗机，其中，所述回水口位于所述风机的进口的下方；
    和/或，所述回水口的敞开方向与所述风机的进风方向在空间上相交。
  8. 如权利要求1所述的洗碗机，其中，所述回水口邻近所述风机设置。
  9. 如权利要求1所述的洗碗机，其中，所述风道包括沿上下方向延伸的冷凝段，所述回水口位于所述冷凝段的下方。
  10. 如权利要求9所述的洗碗机，其中，所述回水口的敞开方向与所述冷凝段的延伸方向同向。
  11. 如权利要求1所述的洗碗机，其中，所述风道包括依次连通的进风段、冷凝段和排风段，所述进风段构造成倒U型且与所述洗涤腔连通，所述风机设于所述排风段，所述回水口设于所述排风段或所述冷凝段。
  12. 如权利要求11所述的洗碗机，其中，所述风道包括形成所述进风段的进风管、形成所述冷凝段的冷凝管和形成所述排风段的排风管，所述风机和所述回水口设于所述排风管。
  13. 如权利要求11所述的洗碗机，其中，所述风机处于所述内门的1/2高度或1/3高度以下，所述排风段具有排风口，所述排风口位于所述内门和所述外门的下方。
PCT/CN2023/097599 2022-11-22 2023-05-31 洗碗机 Ceased WO2024108965A1 (zh)

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