WO2026061069A1 - Dispositif de collecte et de filtration de résidus et lave-vaisselle - Google Patents

Dispositif de collecte et de filtration de résidus et lave-vaisselle

Info

Publication number
WO2026061069A1
WO2026061069A1 PCT/CN2025/105556 CN2025105556W WO2026061069A1 WO 2026061069 A1 WO2026061069 A1 WO 2026061069A1 CN 2025105556 W CN2025105556 W CN 2025105556W WO 2026061069 A1 WO2026061069 A1 WO 2026061069A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
filtration
filter
slag
water
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.)
Pending
Application number
PCT/CN2025/105556
Other languages
English (en)
Chinese (zh)
Inventor
杨�嘉
文志华
苏春会
张亚菲
莫潇越
刘日超
李翔
汪耀东
李忠华
谭发刚
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.)
Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Original Assignee
Foshan Shunde Midea Washing Appliances 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
Application filed by Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd filed Critical Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Publication of WO2026061069A1 publication Critical patent/WO2026061069A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds

Definitions

  • This application relates to the field of dishwasher technology, and in particular to a slag collection and filtration device and a dishwasher.
  • Dishwashers use an internal water circulation system to generate jets for washing, thus reducing water consumption.
  • food residue enters the water and is filtered through a filter.
  • the pores of the filter gradually become clogged with large particles, reducing the water flow from the pump and affecting the intensity of the water jet, resulting in less clean dishes.
  • users must clean the filter regularly.
  • One objective of this application is to provide a slag collection and filtration device and a dishwasher.
  • a slag collection and filtration device is used in a dishwasher.
  • the slag collection and filtration device includes: a water collection chamber for collecting washing water; a filtration chamber having a first inlet and a first outlet, the first inlet being connected to the water collection chamber and used to separate residue and water in the washing water, the filtration chamber being provided with a first filter screen; a slag collection chamber having a second inlet, a second outlet, and a slag discharge port, the second inlet being connected to the filtration chamber and used to collect the residue separated by the filtration chamber, the slag collection chamber being provided with a second filter screen; a circulation pump connected to the first outlet and the second outlet; and a drain pump connected to the slag discharge port.
  • the washing water can be filtered through the filtration chamber and the slag can be collected through the slag collection chamber, so as to improve the filtration effect of the slag collection and filtration device and facilitate slag discharge.
  • the slag collection and filtration device may also have the following additional technical features:
  • the water collection chamber and the filter chamber are arranged side by side, and the first inlet is located between the water collection chamber and the filter chamber.
  • a vent is provided between the water collection chamber and the filter chamber, and the vent is higher than the first inlet and/or the vent is not lower than the second inlet.
  • the filter chamber and the slag collection chamber are arranged side by side, and the second inlet is located between the filter chamber and the slag collection chamber.
  • the second inlet is higher than the bottom of the filter chamber and the bottom of the slag collection chamber.
  • the slag collection and filtration device further includes a drainage chamber located below the water collection chamber and connected to the water collection chamber and the slag discharge port, and the drainage pump is connected to the drainage chamber.
  • the slag discharge port is equipped with a one-way valve, and when the one-way valve is open, the slag discharge port is connected to the drainage chamber.
  • the water collection chamber is provided with a filter cup
  • the peripheral wall of the filter cup is provided with a first filtration part and the bottom wall is provided with a second filtration part
  • the first filter element filters the washing water from the water collection chamber to the filtration chamber
  • the second filtration part is used to filter the washing water from the water collection chamber to the drain chamber.
  • the mesh size of the first filter section is larger than the mesh size of the second filter section.
  • the water collection chamber, the filter chamber, and the slag collection chamber are arranged side by side, with the water collection chamber adjacent to the filter chamber, the filter chamber adjacent to the slag collection chamber, and the slag collection chamber adjacent to the water collection chamber.
  • the slag collection and filtration device further includes: a planar filter screen having an installation port, and the planar filter screen being inclined downward from its periphery to the installation port; a water collection port being provided at the upper end of the water collection cavity and being opposite to the installation port; and a filter cup passing through the installation port and the water collection cavity.
  • the lower end of the water collection chamber is provided with a positioning part, and the lower end of the filter cup is detachably fastened to the positioning part.
  • the slag collection and filtration device includes a water cup, and the filtration chamber and the slag collection chamber are disposed in the water cup.
  • the water cup includes a cup body and a flow channel plate, the filter chamber and the slag collection chamber are disposed in the cup body, and the flow channel plate covers the bottom of the cup body.
  • the first outlet and the second outlet are disposed on the flow channel plate, and the flow channel plate is further provided with a pump flow channel connecting the first outlet and the second outlet, the pump flow channel being connected to the inlet of the circulating pump;
  • the upper end of the filter chamber is provided with a filter chamber cover, the upper end of the first filter screen is rotatably connected to the filter chamber cover, and the lower end is rotatably connected to the flow channel plate;
  • the upper end of the slag collection chamber is provided with a slag collection chamber cover, the upper end of the second filter screen is rotatably connected to the slag collection chamber cover, and the lower end is rotatably connected to the flow channel plate;
  • the flow channel plate is provided with a flushing device, the flushing device extends into the filter chamber to flush the first filter screen, the flow channel plate is also provided with a backwash channel, the backwash channel is connected to the flushing device, and the backwash channel is connected to the outlet of the circulation pump;
  • the flow channel plate is further provided with a transmission cavity
  • the transmission cavity is provided with a transmission component
  • the slag collection and filtration device further includes a driving component
  • the transmission component is drivingly connected to the driving component, the first filter screen and the second filter screen.
  • the dishwasher includes the aforementioned slag collection and filtration device.
  • Figure 1 is a schematic diagram of a slag collection and filtration device according to an embodiment of this application.
  • Figure 2 is a schematic diagram of a slag collection and filtration device according to an embodiment of this application.
  • Figure 3 is a cross-sectional view of a slag collection and filtration device according to an embodiment of this application.
  • Figure 4 is a cross-sectional view of a slag collection and filtration device according to an embodiment of this application.
  • Figure 5 is a cross-sectional view of a slag collection and filtration device according to an embodiment of this application.
  • Figure 6 is a cross-sectional view of a slag collection and filtration device according to an embodiment of this application.
  • Figure 7 is a schematic diagram of a slag collection and filtration device according to an embodiment of this application.
  • Figure 8 is an exploded view of a slag collection and filtration device according to an embodiment of this application.
  • Figure 9 is an exploded view of a slag collection and filtration device according to an embodiment of this application.
  • Figure 10 is a schematic diagram of the water cup of a slag collection and filtration device according to an embodiment of this application.
  • this application provides a residue collection and filtration device 10, which can be used in a dishwasher.
  • the residue collection and filtration device 10 includes a water collection chamber 101, a filter chamber 102, and a residue collection chamber 103.
  • the water collection chamber 101 is used to collect washing water
  • the filter chamber 102 is used to separate residue and water from the washing water
  • the residue collection chamber 103 is used to collect the residue separated by the filter chamber 102.
  • the circulation pump 12 can drive the washing water from the slag collection and filter device 10 to the spray arms and other parts that clean the dishes, and then the washing water washes the dishes; then the washing water flows into the slag collection and filter device 10 and flows into the water collection chamber 101; then the washing water in the water collection chamber 101 is introduced into the filter chamber 102, and the washing water in the filter chamber 102 is separated into slag and water; most of the separated water is introduced into the circulation pump 12 and pumped to the spray arms and other parts that clean the dishes, and the separated residue flows into the slag collection chamber 103.
  • the slag collection and filtration device 10 can filter washing water through the filtration chamber 102 and collect slag using the slag collection chamber 103.
  • the slag can be stored in the slag collection chamber 103 to facilitate the collection of slag during the washing process and to prevent slag from affecting the separation of slag and water in the filtration chamber 102, thereby improving the filtration effect of the slag collection and filtration device 10.
  • the slag can be discharged manually or automatically. Since the slag is relatively concentrated, slag discharge is convenient.
  • the filter chamber 102 may have a first inlet 1021 and a first outlet 1022.
  • the first inlet 1021 connects to the water collection chamber 101, and the first outlet 1022 is used to discharge the separated water.
  • the filter chamber 102 is provided with a first filter screen 163.
  • the first inlet 1021 and the second inlet 1031 are located on one side of the first filter screen 163, and the first outlet 1022 is located on the other side of the first filter screen 163.
  • washing water enters the filter chamber 102 through the first inlet 1021, flows through the first filter screen 163 to the first outlet 1022, and is ultimately pumped for washing dishes, etc.
  • Residue in the washing water is sent out of the filter chamber 102 through the second inlet 1031 and flows to the residue collection chamber 103, where residue is separated.
  • This design facilitates sludge-water separation in the filter chamber 102, improving its filtration efficiency and effect. Simultaneously, it prevents the first filter screen 163 from clogging, thus enhancing the stability of the sludge collection and filtration device 10.
  • the first filter screen 163 in this application can also be located outside the filter chamber 102.
  • the slag collection chamber 103 may have a second inlet 1031, a second outlet 1032, and a slag discharge port 1033.
  • the second inlet 1031 is connected to the filter chamber 102, the second outlet 1032 is used for drainage, and the slag discharge port 1033 is used for slag discharge.
  • the slag collection chamber 103 is equipped with a second filter screen 164.
  • the second inlet 1031 and the slag discharge port 1033 are located on one side of the second filter screen 164, and the second outlet 1032 is located on the other side of the second filter screen 164. Specifically, the residue and some water separated by the filter chamber 102 are introduced into the slag collection chamber 103 through the second inlet 1031.
  • the water is sent out from the second outlet 1032 and sent to the dishwashing component under the drive of the circulating pump 12.
  • the residue remaining after filtration is stored in the slag collection chamber 103 and can be discharged through the slag discharge port 1033.
  • the sludge collection chamber 103 can separate the water and residue entering the chamber. Therefore, some water from the filter chamber 102 can flow into the sludge collection chamber 103, allowing the water flow to carry the residue from the filter chamber 102 into the sludge collection chamber 103 for easy collection. Furthermore, filtering the water entering the sludge collection chamber 103 prevents the sludge-water mixture from flowing back into the filter chamber 102.
  • the second filter screen 164 in this application can also be located outside the sludge collection chamber 103.
  • the slag collection and filtration device 10 also includes a circulation pump 12 and a drainage pump 13, wherein the circulation pump 12 is connected to the first outlet 1022 and the second outlet 1032; and the drainage pump 13 is connected to the slag discharge port 1033.
  • the water collecting chamber 101 and the filter chamber 102 are arranged side by side, with the first inlet 1021 located between the water collecting chamber 101 and the filter chamber 102. This facilitates the flow of washing water from the water collecting chamber 101 into the filter chamber 102, thereby improving the filtration efficiency and flow rate of the sludge collection and filtration device 10 to meet the pumping requirements of the circulating pump 12 and the washing water requirements of the dishwasher.
  • a vent 1023 is provided between the water collection chamber 101 and the filter chamber 102.
  • the vent 1023 connects to the external space of the slag collection and filtration device 10 to balance the internal and external air pressure of the filter chamber 102.
  • the vent 1023 can be located at the upper end of the peripheral wall of the filter chamber 102. This facilitates the drainage of washing water into the filter chamber 102, allowing the washing water to be filtered through the slag collection and filtration device 10, effectively improving the filtration efficiency and effect.
  • the vent 1023 is higher than the first inlet 1021 and/or the vent 1023 is not lower than the second inlet 1031, which reduces the possibility of the vent 1023 being blocked.
  • the filter chamber 102 and the slag collection chamber 103 are arranged side by side, and the second inlet 1031 is located between the filter chamber 102 and the slag collection chamber 103. This allows the washing water containing residue in the filter chamber 102 to easily flow into the slag collection chamber 103, improving the filtration efficiency and effect of the slag collection and filtration device 10.
  • the second inlet 1031 is higher than the bottom of the filter chamber 102 and the bottom of the sludge collection chamber 103. This prevents the fluid in the filter chamber 102 from flowing into the sludge collection chamber 103 without resistance. Most of the washing water is filtered within the filter chamber 102, resulting in a smaller volume of washing water entering the sludge collection chamber 103, reducing the impact on the residue within the sludge collection chamber 103. Furthermore, it also prevents the backflow of residue within the sludge collection chamber 103. Additionally, during filtration, the sludge collection chamber 103 is closed except for the second inlet 1031 and the second outlet 1032.
  • the slag collection and filtration device 10 further includes a drainage chamber 104, which is located below the water collection chamber 101 and connects the water collection chamber 101 to the slag discharge port 1033.
  • the drainage pump 13 is connected to the drainage chamber 104.
  • the drainage chamber 104 can be used to discharge residues, facilitating the automatic slag discharge of the slag collection and filtration device 10.
  • the washing water flows into the slag collection chamber 103. Water enters the filter chamber 102 from the first inlet 1021. After filtration, most of the water flows into the first outlet 1022 after passing through the first filter screen 163. A small amount of water flows into the slag collection chamber 103 and then into the second outlet 1032 after passing through the second filter screen 164.
  • Part of the residue flows from the water collection chamber 101 into the drain chamber 104, and part of the residue enters the filter chamber 102 from the water collection chamber 101. After filtration, it flows into the first outlet 1022 and then into the slag collection chamber 103. After passing through the second filter screen 164, it remains in the slag collection chamber 103.
  • the residue in the slag collection chamber 103 enters the drain chamber 104 and is discharged from the slag collection and filtration device 10 together with the residue in the drain chamber 104.
  • the slag discharge port 1033 is equipped with a one-way valve 17, which connects to the drainage chamber 104 when the one-way valve 17 is open.
  • the one-way valve 17 is configured to open the slag discharge port 1033 in one direction along the slag discharge direction of the slag collection chamber 103.
  • the slag discharge port 1033 can be connected to the drainage pump 13. During the filtration process, the drainage pump 13 is closed, the air pressure at the inlet of the drainage pump 13 is relatively high, and the air pressure in the slag collection chamber 103 is relatively low, so the one-way valve 17 is in the closed state.
  • the drainage pump 13 is running, the air pressure at the inlet of the drainage pump 13 is relatively low, and the air pressure in the slag collection chamber 103 is relatively high, so the one-way valve 17 is in the open state to facilitate the discharge of residue in the slag collection chamber 103.
  • the aforementioned one-way valve 17 may include a cover plate, a rubber cap, a bracket, and a third sealing ring, primarily functioning to open and close the slag discharge port 1033.
  • the bracket serves as a support, is assembled with the slag discharge port 1033, and is sealed by the sealing ring.
  • the bracket may have an opening, and the rubber cap may be connected to the bracket and configured to rotate for opening and closing the opening.
  • a cover plate is provided on the portion of the rubber cap opposite the opening to provide support for the rubber cap, thereby improving the sealing effect when the rubber cap closes the opening.
  • the one-way valve 17 is used to open and close the slag discharge port 1033.
  • the water collecting chamber 101 is provided with a filter cup 162.
  • the peripheral wall of the filter cup 162 is provided with a first filtration section and the bottom wall is provided with a second filtration section.
  • the first filter element filters the washing water from the water collecting chamber 101 to the filtration chamber 102
  • the second filtration section is used to filter the washing water from the water collecting chamber 101 to the drain chamber 104. This facilitates the discharge of residue.
  • the mesh size of the first filtration section is larger than the mesh size of the second filtration section.
  • the water collecting chamber 101, the filter chamber 102, and the slag collecting chamber 103 are arranged side by side, with the water collecting chamber 101 adjacent to the filter chamber 102, the filter chamber 102 adjacent to the slag collecting chamber 103, and the slag collecting chamber 103 adjacent to the water collecting chamber 101. This facilitates the flow of water and residue, enabling the filtration of washing water and the collection of residue.
  • the sludge collection and filtration device 10 further includes: a planar filter screen 161, which has an installation port and is inclined downwards from its periphery to the installation port; a water collection port is provided at the upper end of the water collection chamber 101 and is opposite to the installation port; and a filter cup 162, which passes through the installation port and the water collection chamber 101.
  • the planar filter screen 161 and the filter cup 162 can be used to filter the washing water once, further improving the filtration effect. Additionally, the filter cup 162 can retain larger residues, and the sludge collection assembly can be cleaned by removing the filter screen.
  • the filter screens (first filter screen 163, second filter screen 164, and filter cup 162) in this application can be designed for easy disassembly and removal from the cleaning chamber, facilitating later maintenance.
  • the lower end of the water collecting chamber 101 is provided with a positioning part, and the lower end of the filter cup 162 is detachably fastened to the positioning part. This facilitates the filtration and disassembly of the filter cup 162, enabling primary filtration and convenient handling of larger residues.
  • the slag collection and filtration device 10 includes a water cup 11, with a water collection chamber 101, a filter chamber 102, and a slag collection chamber 103 disposed within the water cup 11. This can improve the integration of the slag collection and filtration device 10, simplify the device, and enhance the stability of the dishwasher.
  • the water collection chamber 101, filter chamber 102, and slag collection chamber 103 in this application can also be configured as separate units.
  • the water cup 11 includes a cup body 111 and a flow channel plate 112, with a filter chamber 102 and a slag collection chamber 103 disposed on the cup body 111, and the flow channel plate 112 covering the bottom of the cup body 111.
  • the water cup 11 may include a water collection chamber 101, a filter chamber 102, a slag collection chamber 103, a drainage chamber 104, and a diversion chamber.
  • the slag collection chamber 103 is connected to the water collection chamber 101 through a slag discharge port 1033, which is equipped with a one-way valve 17.
  • the one-way valve 17 is closed, separating the water collection chamber 101 from the slag collection chamber 103; during drainage, the one-way valve 17 is opened, connecting the water collection chamber 101 and the slag collection chamber 103.
  • the water cup 11 mainly performs functions such as return water collection, backwash filtration, slag collection, spray arm flow channel switching, and drainage and slag discharge.
  • the flow channel plate 112 of this application can serve as the bottom wall of the filter chamber 102 and the slag collection chamber 103, used to position the first filter screen 163 and the second filter screen 164. Additionally, the flow channel plate 112 is provided with a rinsing channel, which connects to the rinsing device 1124 and is used to connect to the circulation pump 12. The flow channel plate 112 is also provided with a transmission chamber 1123, in which the transmission assembly 15 is located. Specifically, the aforementioned first gear 151, second gear 152, and third gear 153 are located in the transmission chamber 1123.
  • the flow channel plate 112 in this application includes, but is not limited to, the following embodiments and combinations thereof.
  • the first outlet 1022 and the second outlet 1032 are located on the flow channel plate 112.
  • the flow channel plate 112 is also provided with a pump flow channel 1121 connecting the first outlet 1022 and the second outlet 1032.
  • the pump flow channel 1121 is connected to the inlet of the circulating pump 12.
  • the circulating pump 12 can create a negative pressure downstream of the first filter screen 163 and the second filter screen 164, so that the washing water can flow to the pump flow channel 1121, facilitating the use of the sludge collection and filtration device 10.
  • the upper end of the filter chamber 102 is provided with a filter chamber cover 1632, the upper end of the first filter screen 163 is rotatably connected to the filter chamber cover 1632, and the lower end is rotatably connected to the flow channel plate 112.
  • the first filter screen 163 is rotatably disposed in the filter chamber 102.
  • the rotation of the first filter screen 163 allows for surface cleaning, thus maintaining its filtration performance.
  • a rinsing device 1124 can be provided, covering the first filter screen 163 along its axial direction. Rotating the first filter screen 163 enables thorough rinsing, improving the efficiency and effectiveness of surface cleaning. Furthermore, the centrifugal force generated during the rotation of the first filter screen 163 causes residue adhering to its surface to separate from the screen; the relative motion between the first filter screen 163 and the water also facilitates the separation of residue from the screen.
  • the first filter screen 163 can be configured to rotate freely. That is, the first filter screen 163 can be configured to rotate under the driving force of water flow, which can simplify the structure of the sludge collection and filtration device 10 and facilitate the surface cleaning of the first filter screen 163 during the filtration process.
  • the upper end of the filter chamber 102 has an opening and a filter chamber cover 1632.
  • the filter chamber cover 1632 is used to open and close the filter chamber 102, and the aforementioned first filter screen 163 is connected to the filter chamber cover 1632. This facilitates the assembly and maintenance of the centrifuge assembly and improves the assembly efficiency of the centrifuge assembly.
  • the filter chamber cover 1632 can be quickly assembled.
  • the filter chamber cover 1632 is detachably connected to the filter chamber 102. This facilitates the quick assembly and disassembly of the filter chamber cover 1632, improves the stability of the centrifuge assembly, and allows for easy viewing of the condition inside the filter chamber 102, facilitating cleaning of the centrifuge assembly.
  • the filter chamber cover 1632 has a first groove on its circumferential surface.
  • a first sealing ring 1633 is arranged along the circumference of the filter chamber cover 1632 and fits into the first groove.
  • the first sealing ring 1633 seals the gap between the filter chamber cover 1632 and the inner circumferential surface of the filter chamber 102.
  • the filter chamber cover 1632 is also provided with a bearing.
  • the upper end of the first filter screen 163 is connected to the bearing, and the bearing realizes the rotatable connection between the first filter screen 163 and the filter chamber cover 1632.
  • the upper end of the first filter screen 163 is rotatably connected to the filter chamber cover 1632.
  • the upper end of the slag collection chamber 103 is provided with a slag collection chamber cover 1642, the upper end of the second filter screen 164 is rotatably connected to the slag collection chamber cover 1642, and the lower end is rotatably connected to the flow channel plate 112.
  • the second filter screen 164 can be configured to rotate freely. That is, the second filter screen 164 can be configured to rotate under the driving force of water flow, which can simplify the structure of the sludge collection and filtration device 10 and facilitate the surface cleaning of the second filter screen 164 during the filtration process.
  • the upper end of the slag collection chamber 103 is provided with an opening, and the upper end of the slag collection chamber 103 is provided with a slag collection chamber cover 1642 for opening and closing the slag collection chamber 103.
  • This facilitates the assembly and maintenance of the slag collection and filtering device 10 and improves the assembly efficiency of the slag collection and filtering device 10.
  • the second filter screen 164 is connected to the slag collection chamber cover 1642, enabling quick assembly of the cover 1642 and the second filter screen 164.
  • the slag collection chamber cover 1642 is detachably connected to the slag collection chamber 103. This facilitates quick assembly and disassembly of the slag collection chamber cover 1642, improves the stability of the slag collection and filtration device 10, and allows for easy monitoring of the slag collection chamber 103, facilitating cleaning of the slag collection and filtration device 10.
  • the slag collection chamber cover 1642 has a second groove on its circumferential surface.
  • a second sealing ring 1643 is arranged along the circumference of the slag collection chamber cover 1642 and fits into the groove. The second sealing ring 1643 seals the gap between the slag collection chamber cover 1642 and the inner circumferential surface of the slag collection chamber 103.
  • the slag collection chamber cover 1642 is also provided with a bearing. The upper end of the second filter screen 164 is connected to the bearing, and the bearing realizes the rotatable connection between the second filter screen 164 and the slag collection chamber cover 1642.
  • the upper end of the second filter screen 164 is rotatably connected to the slag collection chamber cover 1642, and the lower end of the second filter screen 164 is rotatably connected to the bottom wall of the slag collection chamber 103.
  • the upper end of the second filter screen 164 is rotatably connected to the slag collection chamber cover 1642.
  • the flow channel plate 112 is provided with a rinsing device 1124, which extends into the filter chamber 102 to rinse the first filter screen 163.
  • the flow channel plate 112 is also provided with a backwash channel 1122, which is connected to the rinsing device 1124 and is configured to connect to the outlet of the washing circulation pump 12.
  • the rinsing device 1124 is configured to spray water toward the first filter screen 163 to rinse the first filter screen 163.
  • the rinsing device 1124 can clean the surface of the first filter screen 163 to maintain the filtration performance of the first filter screen 163.
  • the rinsing device 1124 can be located downstream of the first filter screen 163 and spray water towards the first filter screen 163. This allows for reverse rinsing of the first filter screen 163, improving its cleaning effect.
  • the rinsing device 1124 can be located upstream of the first filter screen 163 and spray water towards it, achieving the same cleaning effect.
  • the first filter screen 163 is cylindrical, and its peripheral wall is used to separate residue and water in the washing water.
  • the inner space of the first filter screen 163 is connected to the first outlet 1022, and the outer space of the first filter screen 163 is connected to the first inlet 1021 and the second inlet 1031.
  • the rinsing device 1124 includes at least one backwash spray arm disposed inside the first filter screen 163 and spraying water toward the peripheral wall of the first filter screen 163.
  • washing water can flow from the outer space of the first filter screen 163 to the inner space of the first filter screen 163, and be filtered using the peripheral wall of the first filter screen 163.
  • the outer space of the first filter screen 163 is configured as the upstream of the first filter screen 163, and the inner space of the first filter screen 163 is configured as the downstream of the first filter screen 163.
  • the rinsing device 1124 includes at least one backwash spray arm disposed inside the first filter screen 163 and spraying water towards the peripheral wall of the first filter screen 163.
  • the backwash spray arm can be used to achieve rapid cleaning of the first filter screen 163, improving the cleaning efficiency and effect of the filter screen.
  • the backwash spray arm extends along the axial direction of the first filter screen 163 and is offset from the central axis of the first filter screen 163, so that the nozzle of the backwash spray arm can be close to the peripheral wall of the first filter screen 163, thereby increasing the impact force and rinsing effect of the water flow on the first filter screen 163.
  • the spray range of at least one backwash spray arm nozzle covers the first filter screen 163 along the axial direction, that is, the rinsing area of the backwash spray arm can cover the entire first filter screen 163 along the axial direction, thereby increasing the rinsing range of the first filter screen 163 to achieve effective rinsing.
  • the first filter screen 163 of this application can be configured to be rotatable, so that during the rinsing process, the backwash spray arm can be used to rinse and clean the entire first filter screen 163.
  • multiple backflush spray arms may be included, and the multiple backflush spray arms may be distributed circumferentially along the first filter screen 163.
  • the nozzle arrangement density of the backflush spray arms can be reduced, so as to improve the structural strength of the backflush spray arms and increase the impact force of the nozzles.
  • the rinsing device 1124 is connected to the outlet of the circulation pump 12, and the circulation pump 12 can be used to deliver water for rinsing to the rinsing device 1124.
  • the pumping action of the circulation pump 12 can be used to achieve backwashing of the first filter screen 163, which can simplify the structure of the slag collection and filtration device 10.
  • the first filter screen 163 can be backwashed at the same time, thereby improving the filtration efficiency and effect of the slag collection and filtration device 10.
  • the slag collection and filtration device 10 is equipped with a water distribution valve 1111 for connecting the spray arm.
  • the outlet of the circulation pump 12 is connected to the water distribution valve 1111.
  • the circulation pump 12 is connected to a flushing branch, one end of which is connected to the outlet, and the other end is connected to the flushing device 1124. This can further simplify the structure of the slag collection and filtration device 10 and improve the cleaning efficiency and effect on the first filter screen 163.
  • the flow channel plate 112 is also provided with a transmission cavity 1123, and a transmission component 15 is provided in the transmission cavity 1123.
  • the slag collection and filtration device 10 also includes a driving component 14.
  • the transmission component 15 is connected to the driving component 14, the first filter screen 163 and the second filter screen 164.
  • the drive unit 14 is connected to the first filter screen 163 and the second filter screen 164, and is used to drive the first filter screen 163 and the second filter screen 164 to rotate. That is, the drive unit 14 can be used to drive the first filter screen 163 and the second filter screen 164 to rotate, so as to further improve the surface cleanliness of the first filter screen 163 and the second filter screen 164 and improve the filtration effect of the first filter screen 163 and the second filter screen 164.
  • the drive unit 14 is arranged side by side on the outside of the water cup 11. This can optimize the component layout of the slag collection and filtration device 10, reduce the size of the slag collection and filtration device 10 in the vertical direction, and improve the space utilization of the slag collection and filtration device 10.
  • the transmission assembly 15 may further include a first shaft 154.
  • the upper end of the first filter screen 163 is provided with a first mounting hole, and the upper end of the first shaft 154 passes through the first mounting hole.
  • the first shaft 154 and the first mounting hole may be keyed or otherwise connected to facilitate the rotation of the first filter screen 163 by the first shaft 154.
  • the lower end of the first shaft 154 is connected to a second gear 152.
  • the lower end of the first shaft 154 passes through the bottom wall of the filter chamber 102 and is provided with a bearing and an oil seal.
  • the transmission assembly 15 may further include a second shaft 155.
  • the upper end of the second filter screen 164 is provided with a second mounting hole, and the upper end of the second shaft 155 passes through the second mounting hole.
  • the second shaft 155 and the second mounting hole may be keyed or otherwise connected to facilitate the rotation of the second filter screen 164 by the second shaft 155.
  • the lower end of the second shaft 155 is connected to a second gear 152.
  • the lower end of the second shaft 155 passes through the bottom wall of the filter chamber 102 and is provided with a bearing and an oil seal.
  • the slag collection and filtration device 10 further includes a first turbulence-inducing element 1631, which is disposed in the filtration chamber 102 and used to agitate the washing water in the filtration chamber 102.
  • the first turbulence-inducing element 1631 can be used to promote turbulence in the filtration chamber 102, further preventing the first filter screen 163 from being blocked, and facilitating the flow of residue into the slag collection chamber 103 for easy collection of residue.
  • the first spoiler 1631 of this application may have, but is not limited to, the following embodiments and combinations thereof.
  • the first flow-dispersing element 1631 is rotatably disposed in the filter chamber 102.
  • the first flow-dispersing element 1631 can achieve flow disturbance of the fluid in the filter chamber 102 by rotating.
  • the first flow-dispersing element 1631 includes multiple blades spaced apart along the circumferential direction, which can improve the flow disturbance effect on the fluid in the filter chamber 102.
  • the first flow-dispersing element 1631 can be configured to rotate around a circumferential axis, so that during the rotation of the first flow-dispersing element 1631, multiple blades can be used to disturb the fluid in the filter chamber 102.
  • the filter chamber 102 is provided with a rotatable first filter screen 163.
  • the end of the first filter screen 163 is provided with blades, which can agitate the mixture of residue and water in the filter chamber 102, facilitating the discharge of residue.
  • the upper end of the first filter screen 163 is provided with blades, which, during rotation, can push water to flush the side surface of the filter screen, separating the residue from the filter screen.
  • the first flow-dispersing element 1631 and the first filter screen 163 are relatively stationary. When the first filter screen 163 rotates, it can drive the first baffle 1631 to rotate, thereby simplifying the driving structure of the first baffle 1631.
  • the first baffle 1631 can be connected to the lower end of the first filter screen 163 and includes a plurality of first blades spaced apart circumferentially along the first filter screen 163.
  • the first baffle 1631 can also be set to be stationary relative to the filter cavity 102, so that when the water flows through the first baffle 1631, eddies are generated, and the eddies are used to turbulentize the water flow.
  • at least a portion of the first baffle 1631 is located in the lower part of the filter cavity 102. This can improve the turbulence effect on the fluid in the filter cavity 102.
  • the first baffle 1631 is connected to the lower end of the first filter screen 163 and distributed in the direction surrounding the first filter screen 163.
  • the slag collection and filtration device 10 further includes a second baffle 1641, which is disposed in the slag collection chamber 103 and used to agitate the water and residue within the slag collection chamber 103.
  • the second baffle 1641 can be used to promote turbulence within the slag collection chamber 103, facilitating residue collection.
  • the second baffle 1641 can also be used to turbulent the fluid within the slag collection chamber 103, facilitating the emptying of residue from the slag collection chamber 103, thus facilitating dishwasher cleaning, preventing bacterial growth, and improving the cleaning effect and safety of the dishwasher.
  • the second spoiler 1641 of this application may have, but is not limited to, the following embodiments and combinations thereof.
  • the second flow-dispersing element 1641 is rotatably disposed in the slag collection chamber 103.
  • the second flow-dispersing element 1641 can achieve flow disturbance within the slag collection chamber 103 by rotating.
  • the second flow-dispersing element 1641 includes multiple blades spaced apart along the circumferential direction, which can improve the flow disturbance effect on the fluid within the slag collection chamber 103.
  • the second flow-dispersing element 1641 can be configured to rotate around a circumferential axis, so that during the rotation of the second flow-dispersing element 1641, multiple blades can be used to disturb the fluid within the slag collection chamber 103.
  • the slag collection chamber 103 is provided with a rotatable second filter screen 164.
  • the end of the second filter screen 164 is provided with blades, which can agitate the slag and water within the slag collection chamber 103 to facilitate the discharge of residue.
  • the upper end of the second filter screen 164 is provided with blades, which can push water to flush the side filter screen surface during rotation, separating the residue from the filter screen.
  • the second flow-dispersing element 1641 and the second filter screen 164 are relatively stationary. When the second filter screen 164 rotates, it can drive the second baffle 1641 to rotate, thereby simplifying the driving structure of the second baffle 1641.
  • the second baffle 1641 is connected to the lower end of the second filter screen 164 and includes a plurality of second blades spaced circumferentially along the second filter screen 164.
  • the second baffle 1641 can also be set to be stationary relative to the sludge collection chamber 103, so that when the water flows through the second baffle 1641, eddies are generated, and the eddies are used to turbulentize the water flow.
  • at least a portion of the second baffle 1641 is located in the lower part of the sludge collection chamber 103. This can improve the turbulence effect on the fluid in the sludge collection chamber 103.
  • the second baffle 1641 is connected to the lower end of the second filter screen 164 and is distributed in the direction surrounding the second filter screen 164.
  • the second filter screen 164 is cylindrical, with its peripheral wall used for filtration.
  • the inner space of the second filter screen 164 connects to the second outlet 1032, and the outer space of the second filter screen 164 connects to the second inlet 1031 and the slag discharge port 1033.
  • This increases the filtration area of the second filter screen 164, thereby achieving a larger flow rate of filtration to ensure the washing efficiency of the dishwasher.
  • the second filter screen 164 is rotatably disposed in the slag collection chamber 103 around its axis, with its internal space opposite to the second outlet 1032.
  • the pore size of the first filter 163 is set to be no less than 0.1 mm and no more than 1 mm.
  • the pore size of the first filter 163 can be appropriately enlarged.
  • the pore size of the first filter 163 is set to be no less than 0.6 mm and no more than 1 mm.
  • the pore size of the first filter 163 can be set to 0.1 mm, 0.2 mm, 0.35 mm, 0.5 mm, 0.6 mm, 0.75 mm, or 1 mm, etc.
  • the rotational speed of the first filter 163 is low (e.g., no more than 1000 rpm)
  • the pore size of the first filter 163 can be appropriately reduced.
  • the pore size of the second filter 164 is set to be no less than 0.1 mm and no more than 1 mm.
  • the rotational speed is high (e.g., greater than 1000 rpm)
  • the pore size of the second filter 164 can be appropriately enlarged.
  • the pore size of the second filter 164 is set to be no less than 0.6 mm and no more than 1 mm.
  • the pore size of the second filter 164 can be set to 0.1 mm, 0.2 mm, 0.35 mm, 0.5 mm, 0.6 mm, 0.75 mm, or 1 mm, etc.
  • the rotational speed of the second filter 164 is low (e.g., no more than 1000 rpm)
  • the pore size of the second filter 164 can be appropriately reduced.
  • the inner bottom surface of the slag collection chamber 103 is designed as a slope that gradually slopes downwards from the filter chamber 102 to the slag discharge port 1033, so that the residue or water entering the slag collection chamber 103 can flow towards the slag discharge port 1033, facilitating smooth slag discharge and preventing residue from remaining in the slag collection chamber 103 and causing bacterial growth.
  • the lower end of the second filter screen 164 is higher than the inner bottom surface of the slag collection chamber 103, thereby preventing residue remaining in the slag collection chamber 103 from adhering to the surface of the second filter screen 164 and improving the filtration performance of the second filter screen 164.
  • the inner bottom surface of the slag collection chamber 103 is provided with a boss, the second outlet 1032 is located on the top surface of the boss, and the second filter screen 164 is located on the boss. This can improve the filtration performance of the second filter screen 164 and can use the boss to provide support for the second filter screen 164 to maintain its stability.
  • This application also provides a dishwasher, including the aforementioned slag collection and filtering device 10.
  • the slag collection and filtration device 10 of this application may include modules such as a water collection chamber 101, a filter chamber 102, a slag collection chamber 103, a circulation pump 12, a drainage pump 13, and a water distribution valve 1111. It has a multi-stage filtration function.
  • the multi-stage filtration mainly utilizes a planar filter screen 161, a filter cup 162, a first filter screen 163, a second filter screen 164, a circulation pump 12, a drive component 14, and a transmission assembly 15.
  • the primary filtration system includes a flat filter screen 161 and a filter cup 162.
  • the water carries the residue to the bottom of the washing chamber, flows through the flat filter screen 161, and collects in the water collection chamber 101.
  • Residue smaller than the pore size of the flat filter screen 161 enters the filter chamber 102.
  • Residue larger than the pore size of the flat filter screen 161 enters the filter cup 162.
  • Filter cup 162 has two pore sizes: a smaller side pore size, which can be set to 0.5–3 mm, and a larger bottom pore size, which can be set to 5–10 mm. Residue larger than the bottom pore size requires manual cleaning. Residue smaller than the bottom pore size but larger than the side pore size is discharged by drain pump 13 during drainage. Residue smaller than the side pore size enters the filter chamber 102. This primary filtration achieves the filtration of residue larger than 3 mm.
  • the two-stage filtration system consists of a first filter screen 163, a second filter screen 164, etc.
  • the pore sizes of the first filter screen 163 and the second filter screen 164 can be the same or different.
  • Water and residue entering the filtration chamber 102 are filtered by the first filter screen 163. Tiny particles smaller than the first filter screen 163 can pass through the filter screen and enter the circulation pump 12 along with the water. Residue larger than the first filter screen 163 (size 0.1-3mm) enters the residue collection chamber 103. During drainage, the residue in the residue collection chamber 103 is discharged by the drainage pump 13.
  • the first filter screen 163 and the second filter screen 164 of the secondary filtration are driven to rotate by the drive element 14 and the transmission assembly 15. Under the action of centrifugal force, the residue separates from the filter screen.
  • first filter 163 and/or the second filter 164 can be configured to be rotatable and to utilize centrifugal separation.
  • the first filter screen 163 rotates at high speed under the drive of the drive component 14 (e.g., a motor). This high-speed rotation of the first filter screen 163 separates contaminants adhering to its surface, improving its permeability.
  • the first filter screen 163 is equipped with first blades; rotating these blades propels water to flush the surface of the first filter screen 163, accelerating the separation of residues and ensuring thorough cleaning.
  • the first inlet 1021 is located on the circumference of the filter chamber 102
  • the first outlet 1022 is located on the bottom surface of the filter chamber 102
  • the second inlet 1031 is located on the circumference of the filter chamber 102.
  • a low-pressure zone is formed at the first outlet 1022, while the outer side of the filter screen in the filter chamber 102 is a relatively high-pressure zone, and the first inlet 1021 is also a relatively high-pressure zone.
  • a low-pressure zone is formed at the second outlet 1032, while the second inlet 1031 is a relatively high-pressure zone. Therefore, some water will pass through the sludge collection chamber 103 and enter the second outlet 1032. Pollutants on the outer side of the first filter screen 163 are propelled towards the second inlet 1031 by the water flow and enter the sludge collection chamber 103.
  • this application also includes a cleaning module to clean the first filter screen 163, achieving cleaning of the first filter screen 163 through circulating water microfiltration and centrifugal cleaning.
  • a second blade is installed at the bottom of the second filter screen 164. Driven by a motor, the second filter screen 164 rotates, and the second blade drives water flow to flush the filter screen surface, separating the residue from the filter screen surface.
  • the second filter screen 164 rotates, and the second agitator 1641 stirs the water movement within the slag collection chamber 103, causing the residue to mix with the water.
  • the residue is then discharged through the slag discharge port 1033 of the slag collection chamber 103.
  • the slag collection chamber 103 can realize the functions of residue collection and slag-water separation.
  • the sludge collection and filtration device 10 of this application can separate the residue from the circulating water, achieving clean water washing and avoiding secondary pollution; centrifugal separation can automatically clean the filter screen, eliminating the need for manual maintenance; it can ensure a stable water pump output, improving the pump's working efficiency; and it makes it easier to discharge the accumulated residue. All filter screens can be easily removed for convenient maintenance.
  • 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 technical features indicated.
  • a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature.
  • “multiple” means at least two, such as two, three, etc., unless otherwise explicitly specified.
  • the terms “installation,” “connection,” “joining,” and “fixing,” etc. should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
  • “above” or “below” the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, “above,” “on top of,” and “over” the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. “Below,” “below,” and “under” the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
  • references to terms such as "one embodiment,” “some embodiments,” “example,” “specific example,” or “some examples,” etc. refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application.
  • the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.
  • the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
  • those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

L'invention concerne un dispositif de collecte et de filtration de résidus (10) et un lave-vaisselle. Le dispositif de collecte et de filtration de résidus (10) comprend : une cavité de collecte d'eau (101), la cavité de collecte d'eau (101) étant conçue pour collecter de l'eau de lavage ; une cavité de filtration (102), la cavité de filtration (102) étant pourvue d'une première entrée (1021) et d'une première sortie (1022), la première entrée (1021) étant en communication avec la cavité de collecte d'eau (101), la cavité de filtration (102) étant conçue pour séparer le résidu de l'eau de lavage, et la cavité de filtration (102) étant pourvue d'un premier tamis filtrant (163) ; une cavité de collecte de résidus (103), la cavité de collecte de résidus (103) étant pourvue d'une seconde entrée (1031), d'une seconde sortie (1032) et d'un orifice d'évacuation de résidus (1033), la seconde entrée (1031) étant en communication avec la cavité de filtration (102), la cavité de collecte de résidus (103) étant conçue pour collecter le résidu séparé par la cavité de filtration (102), et la cavité de collecte de résidus (103) étant pourvue d'un second tamis filtrant (164) ; une pompe de circulation (12), la pompe de circulation (12) étant en communication avec la première sortie (1022) et la seconde sortie (1032) ; et une pompe de drainage (13), la pompe de drainage (13) étant en communication avec l'orifice d'évacuation de résidus (1033).
PCT/CN2025/105556 2024-09-19 2025-06-30 Dispositif de collecte et de filtration de résidus et lave-vaisselle Pending WO2026061069A1 (fr)

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CN202411311345.9 2024-09-19
CN202411311345.9A CN121694653A (zh) 2024-09-19 2024-09-19 集渣过滤装置和洗碗机

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WO2026061069A1 true WO2026061069A1 (fr) 2026-03-26

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