WO2020151184A1 - 洗碗设备以及泵组件 - Google Patents

洗碗设备以及泵组件 Download PDF

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Publication number
WO2020151184A1
WO2020151184A1 PCT/CN2019/093363 CN2019093363W WO2020151184A1 WO 2020151184 A1 WO2020151184 A1 WO 2020151184A1 CN 2019093363 W CN2019093363 W CN 2019093363W WO 2020151184 A1 WO2020151184 A1 WO 2020151184A1
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WO
WIPO (PCT)
Prior art keywords
radial
joint
pump housing
thread profile
axial
Prior art date
Application number
PCT/CN2019/093363
Other languages
English (en)
French (fr)
Inventor
约翰·爱德华·德赖斯
凯尔·爱德华·达勒姆
Original Assignee
青岛海尔洗碗机有限公司
海尔美国电器解决方案有限公司
海尔智家股份有限公司
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 青岛海尔洗碗机有限公司, 海尔美国电器解决方案有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔洗碗机有限公司
Priority to CN201980043241.5A priority Critical patent/CN112367893B/zh
Publication of WO2020151184A1 publication Critical patent/WO2020151184A1/zh

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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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • 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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • 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

Definitions

  • the subject matter generally relates to dishwashing appliances, and more specifically to dishwashing appliances having pumps and components for directing fluid therethrough.
  • Dishwashers or dishwashing appliances generally include a tub that defines a washing chamber for receiving items for washing.
  • the door provides or allows selective access to the cleaning chamber.
  • the dishwashing equipment usually circulates fluid over the items (eg, pots, dishes, silverware, etc.) through the washing chamber.
  • the fluid may be, for example, various combinations of water and detergent during the washing cycle or water (which may include additives) during the rinsing cycle.
  • a drain cycle may be performed to remove fluid from the cleaning chamber.
  • one or more pumps are provided to energize the fluid through or out of the cleaning chamber.
  • a circulation pump is often used to circulate the fluid in the dishwashing device during a given cycle.
  • the fluid is collected into a sump at or near the bottom of the cleaning chamber and is pumped back to the cleaning chamber through, for example, a nozzle in a spray arm or other opening that directs the fluid against the item to be cleaned or rinsed in.
  • the drain pump can be activated to pump fluid out of the cleaning chamber.
  • a circulating pump or a drain pump includes a housing with a pipeline or a defined passage for guiding fluid through the housing.
  • the existing structure has challenges. For example, it is often difficult to direct fluid to various parts of a dishwashing appliance without incurring significant changes in pressure. In some cases, these may greatly reduce the efficiency of the corresponding pump or dishwasher.
  • Features that create a predefined path to gradually redirect fluid flow or moderate pressure changes, such as fluid channels or vanes, may be difficult to assemble or incorporate into existing designs. In addition, they can be difficult to seal and make sure that the fluid does not deviate from a predefined path.
  • a dishwashing device that solves one or more of the above-mentioned problems.
  • a dish washing apparatus may include a tub, a sump, a chamber pump, a blade, and a threaded joint joint.
  • the bucket may define a washing chamber.
  • the sump can be positioned at the bottom part of the barrel.
  • the sump may define an axial direction.
  • the chamber pump housing may be installed in at least a part of the sump.
  • the chamber pump housing may define an inner wall surface.
  • the vanes can be positioned in the chamber pump housing.
  • the blade may extend from the inner radial end to the outer radial end.
  • the blades can define a fin profile.
  • the threaded engagement part may be formed between the inner wall surface and the blade.
  • the threaded engagement joint may include a first radial thread profile and a second radial thread profile.
  • the first radial thread profile may extend radially from the blade at the outer radial end.
  • the second radial thread profile may be formed on the inner wall surface.
  • the second radial thread profile may be complementary to the first radial thread profile.
  • a dish washing device may include a tub, a sump, a chamber pump, a blade, and a threaded joint joint.
  • the bucket may define a washing chamber.
  • the sump can be positioned at the bottom part of the barrel.
  • the sump may define an axial direction.
  • the chamber pump housing may be installed in at least a part of the sump.
  • the chamber pump housing may define an inner wall surface.
  • the vanes can be positioned in the chamber pump housing.
  • the blade may extend from the inner radial end to the outer radial end.
  • the blades can define a fin profile.
  • the threaded engagement part may be formed between the inner wall surface and the blade.
  • the threaded engagement joint may include a first radial thread profile and a second radial thread profile.
  • the first radial thread profile may extend radially from the blade at the outer radial end.
  • the first radial thread profile may be bounded in the radial section of the wing profile.
  • the second radial thread profile may be formed on the inner wall surface.
  • the second radial thread profile may be complementary to the first radial thread profile.
  • Fig. 1 provides a front perspective view of a dishwashing device according to an exemplary embodiment of the present disclosure.
  • Figure 2 provides a side cross-sectional view of the exemplary dishwashing appliance of Figure 1.
  • Figure 3 provides a cross-sectional view of the sump of the exemplary dishwashing device of Figure 1.
  • Figure 4 provides a side perspective view of the pump assembly of the exemplary dishwashing appliance of Figure 1.
  • Figure 5 provides a bottom perspective view of the exemplary pump assembly of Figure 4.
  • Figure 6 provides a bottom perspective view of the exemplary sump of Figure 3, from which the pump is partially removed and the bottom portion of the sump is removed for clarity purposes.
  • Figure 7 provides a cross-sectional view of the exemplary sump of Figure 3 during a cycle.
  • Figure 8 provides a cross-sectional view of the exemplary sump of Figure 3 during a drain cycle.
  • Figure 9 provides a cross-sectional view of a portion of the exemplary pump assembly of Figure 4.
  • Figure 10 provides a cross-sectional view of a portion of the exemplary pump assembly of Figure 4, with a portion removed for clarity.
  • FIG. 11 provides an enlarged perspective view of multiple vanes of the exemplary pump assembly of FIG. 4.
  • Figure 12 provides a perspective view of the lower portion of the exemplary pump assembly of Figure 4.
  • Figure 13 provides a top perspective view of the lower portion of the vane of the exemplary pump assembly of Figure 4.
  • Figure 14 provides a perspective view of the lower inner portion of the exemplary pump assembly of Figure 4.
  • Figure 15 provides a perspective view of the lower outer portion of the exemplary pump assembly of Figure 4.
  • upstream refers to the direction in which the fluid flows
  • downstream refers to the direction in which the fluid flows.
  • FIGS. 1 and 2 depict a dishwashing device 100 according to an exemplary embodiment of the present disclosure.
  • the dishwasher 100 includes a cabinet 102.
  • the cabinet 102 has a bucket 104 defining a washing compartment 106 therein.
  • the barrel 104 also defines a front opening (not shown).
  • the dishwashing appliance 100 includes a door 120 hinged at the bottom 122 of the door 120 for moving between a normal vertical closed position (shown in FIGS. 1 and 2) and a horizontal open position, in a normal vertical position. In the straight closed position, the washing compartment 106 is hermetically closed for washing operations, and the horizontal open position is used for loading or unloading items from the dishwasher 100.
  • the tub 104 also includes a sump 170 that is positioned adjacent to the bottom portion 112 of the tub 104 and is configured to receive liquid cleaning fluid (eg, water, detergent, cleaning fluid, or any other suitable) during operation of the dishwasher 100 fluid).
  • liquid cleaning fluid eg, water, detergent, cleaning fluid, or any other suitable
  • the nozzle 160 is positioned adjacent to the sump 170 of the dishwashing device 100.
  • the nozzle 160 is configured to guide liquid into the sump 170.
  • the nozzle 160 may receive liquid from, for example, a water supply (not shown) or any other suitable source.
  • the spout 160 may be positioned at any suitable location within the dishwashing device 100 (e.g., such that the spout 160 directs liquid into the tub 104).
  • the spout 160 may include a valve (not shown) so that liquid may be selectively guided into the barrel 104. Therefore, for example, during the cycle described below, the nozzle 160 may selectively guide water or cleaning fluid into the sump 170 according to the needs of the current cycle of the dishwashing device 100.
  • each bracket assembly 130 and 132 may be slidably installed in the cleaning compartment 106.
  • each bracket assembly 130 and 132 is manufactured as a lattice structure including a plurality of elongate members 134.
  • Each of the bracket assemblies 130 and 132 is generally adapted to move between an extended loading position (not shown) and a retracted position (shown in FIGS. 1 and 2). In the extended loading position, the bracket Basically positioned outside the washing compartment 106, in the retracted position, the holder is located inside the washing compartment 106.
  • a silver cutlery basket (not shown) may be removably attached to the bracket assembly 132 for placing silver cutlery, utensils, and the like that are too small to be received by the brackets 130 and 132.
  • the dishwashing device 100 includes a lower spray assembly 144 rotatably installed in the lower region 146 of the washing compartment 106 and above the sump 170 so as to rotate relatively close to the bracket assembly 132.
  • the middle spray assembly 148 is located in the upper area of the cleaning compartment 106 and may be located close to the upper bracket 130.
  • the upper spray assembly 150 may be located above the upper bracket 130.
  • the lower spray assembly 144 and the middle spray assembly 148 and the upper spray assembly 150 are supplied by the fluid circulation assembly 152 for circulating water and dishwasher fluid in the tub 104.
  • the fluid circulation assembly 152 includes one or more fluid pumps (eg, circulation pump 154 or cross-flow pump/drain pump 156).
  • fluid pumps eg, circulation pump 154 or cross-flow pump/drain pump 156.
  • some embodiments include a circulation pump 154 positioned at least partially within the sump 170 and a drain pump positioned below the circulation pump 154 in fluid communication with the sump 170.
  • the drain pump 156 may be configured to facilitate the flow of washing fluid from the sump 170 to the drain 158 when activated.
  • the circulation pump 154 may be configured to supply a flow of cleaning fluid from the sump 170 to the spray assemblies 144, 148, and 150 through one or more circulation conduits 226 when activated.
  • the filter assembly may also be at least partially positioned in the sump 170 for filtering food particles or other debris (collectively referred to herein as dirt) from the cleaning fluid before the cleaning fluid flows to the circulating pump 154.
  • the spray assemblies 144 and 148 include an arrangement of discharge nozzles or orifices that are used to direct washing fluid to the dishes or other items located in the rack assemblies 130 and 132.
  • the arrangement of the discharge nozzles in the spray assemblies 144 and 148 provides rotational force by means of the cleaning fluid flowing through the discharge ports.
  • the combined rotation of spray assemblies 144 and 148 sprays washing fluid to provide coverage of dishes and other dishwasher contents.
  • the dish washing device 100 is further equipped with a controller 137 to adjust the operation of the dish washing device 100.
  • the controller 137 may include a memory (for example, a non-transferable medium) and a microprocessor, such as a general-purpose or special-purpose microprocessor operable to execute programming instructions or micro-control codes related to cleaning operations.
  • the memory may represent random access memory (such as DRAM), or read-only memory (such as ROM or FLASH).
  • the processor executes programming instructions stored in the memory.
  • the memory may be a component separate from the processor, or may be included in the processor.
  • the controller 137 can be constructed without using a microprocessor (for example, using a combination of discrete analog or digital logic circuits, such as switches, amplifiers, integrators, comparators, flip-flops, AND gates, etc.) to Perform control functions instead of relying on software.
  • a microprocessor for example, using a combination of discrete analog or digital logic circuits, such as switches, amplifiers, integrators, comparators, flip-flops, AND gates, etc.
  • the controller 137 may be positioned at multiple locations throughout the dish washing device 100. In the illustrated embodiment, the controller 137 may be located within the control panel area 121 of the door 120, as shown. In such an embodiment, input/output ("I/O") signals may be passed between the controller 137 of the dishwashing device 100 and various operating components along a wiring harness that may pass through the bottom 122 of the door 120 wiring.
  • the controller 137 includes a user interface panel 136 through which a user can select various operating characteristics and modes and monitor the process of the dish washing device 100.
  • the user interface 136 may represent a general purpose I/O ("GPIO") device or functional block.
  • GPIO general purpose I/O
  • the user interface 136 may include input components, such as one or more of various electrical, mechanical, or electromechanical input devices including rotary dials, buttons, and touch pads.
  • the user interface 136 may include display components, such as a digital or analog display device designed to provide operating feedback to the user.
  • the user interface 136 may communicate with the controller 137 via one or more signal lines or a shared communication bus (e.g., electrical communication or wired communication).
  • the dishwashing device 100 may have a known configuration using drawers that are drawn out of the cabinet and can be accessed from the top for loading and unloading items.
  • FIGS. 3 to 15 provide various views of the sump 170, which includes the pump assembly 200 and the housing 234 for the pump assembly.
  • 4 and 5 provide various views of portions of the pump assembly 200 separated from the sump 170.
  • FIGS. 9-15 provide various views of the portion of the pump assembly 200 including the chamber pump housing 234.
  • the sump 170 is positioned along the vertical direction V at the bottom portion 112 of the barrel 104 (FIG. 2).
  • the sump 170 defines an axial direction A, which may be parallel to the vertical direction V, for example.
  • the sump 170 is formed integrally with the bottom wall 142 of the barrel 104.
  • the sump 170 may instead be formed separately from the bottom wall 142 of the barrel 104 and attached to the bottom wall 142 of the barrel 104 in any suitable manner.
  • the sump 170 may have any suitable orientation.
  • the sump 170 includes a side wall 202 and a bottom wall 204.
  • the side wall 202 may define a substantially cylindrical shape along the axial direction A.
  • the side wall 202 may instead define other suitable shapes along the axial direction A, such as a truncated cone shape or Instead of inverted truncated cone shape.
  • the bottom wall 204 extends radially inwardly from the side wall 202 and defines a recessed cavity 206 defined by the walls 202, 204.
  • the recessed cavity 206 is substantially downwardly defined (for example, toward the axial direction A or parallel to the axial direction) by the downwardly extending edge portion of the bottom wall 204 at its periphery.
  • the recessed cavity 206 also defines an opening 210, which has, for example, a generally circular shape.
  • the bottom wall 204 defines a drainage opening 208 that opens into the recessed cavity 206 in a part.
  • the filter assembly is at least partially positioned in the sump 170 along the axial direction A (eg, as part of or with the pump assembly 200).
  • the filter assembly may include multiple panels, such as side panels 212, bottom panels 214, or top panels (not shown).
  • One or more of the side panels 212, the bottom panel 214, and the top panel may include a filter medium that is defined and configured to allow the cleaning fluid to pass therethrough while preventing dirt larger than a predetermined size (eg, food particles or other Fragments) pass through multiple openings or holes.
  • a predetermined size eg, food particles or other Fragments
  • one or more of the side panels 212, bottom panels 214, and top panels may include fine mesh material.
  • the circulation pump 154 is included in the pump assembly 200. More specifically, the circulation pump 154 includes a fluid impeller (eg, circulation impeller 232) and a chamber pump housing 234. When assembled, the circulating impeller 232 is positioned in the pump assembly 200 and may be enclosed by the chamber pump housing 234. In some embodiments, the circulation pump 154 including the chamber pump housing 234 is held in place along the axial direction A by, for example, one or more elastomeric posts 222.
  • a fluid impeller eg, circulation impeller 232
  • the circulation pump 154 including the chamber pump housing 234 is held in place along the axial direction A by, for example, one or more elastomeric posts 222.
  • the pump housing 234 defines a plurality of internal passages 236 that are downstream of the impeller 232 and are in fluid communication with the circulation conduit 226 (FIG. 2). Therefore, the internal passage 236 is in fluid communication with one or more spray assemblies (142, 148, 150).
  • the internal passage 236 may direct the flow F of cleaning fluid from the circulating impeller 232 to the circulating duct 226 (e.g., during the circulation period).
  • One or more diffuser blades 270 extend (eg, radially) in the chamber pump housing 234 to convert the velocity head of the flow F into a static head in the internal passage 236.
  • the circulation pump 154 is positioned at least partially within the filter assembly (e.g., within one or more panels thereof).
  • some embodiments include an electric motor 242 installed in a portion of the sump 170.
  • the electric motor 242 may be enclosed in a portion of the chamber pump housing 234 radially inward from the vane 270.
  • At least one elastomeric post 222 and the corresponding support tube 250 form a mating electrical plug-socket 252.
  • at least one elastomeric post 222 may include an electrical male plug 252A
  • the corresponding support tube 250 includes an electrical female socket 252B.
  • the electrical male plug 252A may be provided in the support tube 250 while the female socket 252B is provided on or inside the elastomeric column 222.
  • the elastomeric post 222 may be in conductive or electrical communication with a power source (for example, through one or more respective intermediate conductive wires or buses).
  • the support tube 250 may be in conductive or electrical communication with the electric motor 242. When assembled, the mating electric plug-socket 252 can connect the power source to the electric motor 242. Therefore, it is possible to form an electrical connection with the electric motor 242 through at least one elastomeric column 222.
  • the pump assembly 200 includes a drain pump 156 that itself includes a fluid impeller (eg, a drain impeller 238) and a drain pump housing 240.
  • a fluid impeller eg, a drain impeller 2348
  • the drain pump housing 240 may be attached to the sump 170 or formed by the sump 170 in other ways. More specifically, the drain pump housing 240 is positioned below the recessed cavity 206 defined by the bottom wall 204 of the sump 170 assembly and is in fluid communication with the recessed cavity 206 through the drain opening 208 of the bottom wall 204 of the sump 170.
  • the drain pump housing 240 may be integrally formed with the sump 170, or alternatively may be attached to the sump 170 in any suitable manner.
  • the scroll cover 254 may be positioned across or above at least a portion of the drainage opening 208.
  • the scroll cover 254 is mounted to the chamber pump housing 234 (e.g., via one or more adhesives, mechanical fasteners, or integrated multiple components).
  • the scroll cover 254 can therefore be positioned between the electric motor 242 and the drain impeller 238 (e.g., along the axial direction A).
  • a cover opening or inlet 256 is defined through the scroll cover 254 (eg, along the axial direction A or a direction parallel to the vertical direction V or other directions that are not orthogonal to the vertical direction V).
  • the fluid communication and flow F between the recessed chamber 206 and the drain pump housing 240 may therefore be allowed to pass through the cover inlet 256.
  • the scroll cover 254 includes a radial flange (eg, along the radial direction or outer periphery of the scroll cover 254).
  • the radial flange 258 may be provided around the axial direction A at the radially outermost portion of the scroll cover 254. When assembled, the radial flange 258 may be positioned at least partially above the elastomeric seal 260 that extends around or near the drain opening 208.
  • the elastomeric seal 260 may be mounted on the sump 170 (eg, on the bottom wall 204) at a location generally higher than the drain impeller 238 relative to the vertical direction V or the axial direction A.
  • the elastomer seal 260 may be further positioned at least partially along the axial direction A between the radial flange 258 and the recessed cavity 206 (or between the radial flange 258 and the drain impeller 238).
  • the elastomeric seal 260 includes an annular support body and an engagement surface extending therefrom.
  • the engagement surface may extend radially inwardly toward the axial direction A from the annular support body.
  • the pump assembly 200 includes an axial shaft 244 that engages with the electric motor 242 (e.g., in mechanical communication). During operation, the axial shaft 244 can thus be rotated by the electric motor 242. As shown, the electric motor 242 may be positioned above the drainage impeller 238 or the circulation impeller 232 (e.g., along the vertical direction V or the axial direction A). In addition, the circulating impeller 232 may be positioned above the scroll cover 254. In an exemplary embodiment, the axial shaft 244 extends along the axial direction A through the circulating impeller 232, through the scroll cover 254 (for example, at the cover inlet 256) and into the drainage impeller 238. The axial shaft 244 may be selectively engaged with the drainage impeller 238 and the circulation impeller 232 such that the rotation of the axial shaft 244 rotates the drainage impeller 238 or the circulation impeller 232.
  • the electric motor 242 may be positioned above the drainage impeller 238 or the circulation impeller 232 (e.g.,
  • the circulation pump 154 may include a one-way clutch (not shown) in mechanical communication with the circulation impeller 232 and the axial shaft 244.
  • the one-way clutch of the circulating impeller 232 is configured to engage the circulating impeller 232 and rotate the circulating impeller 232.
  • the circulating impeller 232 may be fixed to the axial shaft 244 (for example, such that the rotation of the axial shaft 242 in the first direction or the second direction causes the circulating impeller 232 to rotate).
  • the drain pump 156 further includes a one-way clutch 268 in mechanical communication with the drain impeller 238 and the axial shaft 244.
  • the one-way clutch 268 of the drain impeller 238 is configured to engage the drain impeller 238 and rotate the drain impeller 238.
  • only one of the circulation pump 154 and the drain pump 156 can be activated at a given time.
  • the drainage impeller 238 may be fixed to the axial shaft 244 (for example, such that the rotation of the axial shaft 242 in the first direction or the second direction causes the drainage impeller 238 to rotate).
  • the present pump assembly 200 including the electric motor 242 and the impellers 232, 238 can be assembled by lowering the chamber pump housing 234 into the sump 170, without requiring a separate area in the area below the recessed chamber 206 Electric motor, or no need to enter the area. Additionally or alternatively, most (if not all) of the pump assembly 200 (for example, the electric motor 242, the chamber pump housing 234, the scroll cover 254, and the impellers 232, 238) may be installed before being installed in the sump 170 Pre-assembled.
  • the sump 170 is depicted as being during operation of the circulation pump 154 (FIG. 2), such as during the circulation cycle (e.g., a washing or rinsing cycle) of the exemplary dishwashing appliance 100.
  • a passage 246 may be defined between the bottom panel 214 of the filter assembly and the bottom wall 204 of the sump 170.
  • the passage 246 may further extend between the bottom panel 214 and the scroll cover 254.
  • the passage 246 generally allows cleaning fluid to enter the bottom panel 214 of the filter assembly.
  • the impeller 232 of the circulating pump 154 can pull the flow of the cleaning fluid F through the filter assembly (eg, through the top panel, side panel 212, or bottom panel 214, so that the cleaning fluid flows inward Through the panel).
  • Fluid can flow from the passage 246 through the inlet 248 into the chamber pump housing 234.
  • fluid can flow through the internal passage 236 and past the diffuser vane 270 or on it.
  • the fin profile 272 of each diffuser blade 270 can be used to convert the velocity head of the fluid flow into a static head.
  • the fluid may continue to flow downstream from the internal passage 236 (e.g., to one or more spray assemblies 142, 148, 150).
  • the dirt in the cleaning fluid may be directed by gravity toward the recessed chamber 206 defined in the bottom wall 204 of the sump 170.
  • the inlet 248 of the circulation pump 154 is located adjacent to the bottom panel 214 of the filter assembly, and therefore the cleaning fluid may be drawn through the bottom panel 214 of the filter assembly first.
  • the force of gravity may also cause the dirt to be directed toward the recessed chamber 206 by gravity. This configuration can allow efficient drainage and cleaning of the sump 170 because the drainage opening 208 opens into the recessed cavity 206 defined by the bottom wall 204.
  • the bottom wall 204 may include or be provided as a solid continuous surface. Therefore, at least a portion of the bottom wall 204 (e.g., its lowermost surface, which is just below the recessed cavity 206 and the impeller 238) may have no openings or holes (e.g., vertical openings) through which water can pass.
  • the sump 170 is depicted as being during operation of the drain pump 156 (FIG. 2 ), such as during the drain cycle of the exemplary dishwashing appliance 100.
  • the cleaning fluid flow F may be drawn from the sump 170 through the recessed cavity 206 in the bottom wall 204 of the sump 170 and through the drain pump opening 208 of the bottom wall 204. Since a lot of dirt may be located in the recessed chamber 206, the drain pump 156 can more quickly discharge the dirt previously collected in the recessed chamber 206 of the bottom wall 204, and can leave less dirt for the subsequent circulation .
  • one or more diffuser vanes 270 are provided in the chamber pump housing 234.
  • the diffuser vane 270 may be positioned in (eg, at least partially define) the internal passage 236.
  • each vane 270 generally extends from the inner radial end 274 (eg, along the radial direction R) to the outer radial end 276.
  • each diffuser blade 270 may define a fin profile 272.
  • the outer surface of each diffuser blade 270 is generally curved or non-linear between the first axial end 278 and the second axial end 280.
  • the airfoil profile 272 may have a varying blade width or thickness (eg, such that the thickness of the airfoil profile 272 tapers between the two axial ends 278, 280) and is generally used to form the high pressure side and the low pressure side.
  • the fluid flow in the chamber housing 234 may be directed into the internal passage 236 according to a relatively spiral or curved path with respect to the axial direction A.
  • separate inner diffuser bowl 282 and outer diffuser bowl 284 are included with chamber pump housing 234.
  • the inner diffuser bowl 282 is at least partially enclosed in the outer diffuser bowl 284.
  • at least a portion of the outer diffuser bowl 284 and the inner diffuser bowl 282 may be spaced apart (eg, along the radial direction R) to define, for example, the radial boundary of the inner channel 236.
  • the internal passage 236 may be defined between the outer wall surface 286 of the inner diffuser bowl 282 and the inner wall surface 288 of the outer diffuser bowl 284.
  • the outer diffuser bowl 284 may define an inlet 248 (for example, below the inner diffuser bowl 282) and a downstream outlet 249 (for example, above the inner diffuser bowl 282 and with the spray assembly One or more of 142, 148, 150 are in fluid communication). Therefore, the inner channel 236 may extend across the inner diffuser bowl 282 in the outer diffuser bowl 284. Additionally or alternatively, the impeller 232 may be housed in the outer diffuser bowl 284 while remaining outside of the inner diffuser bowl 282. Alternatively, the motor 242 may be positioned radially inward from the diffuser blade 270. For example, the motor 242 may be enclosed within the inner diffuser bowl 282 and sealed to avoid fluid communication with the internal passage 236. As shown, the axial shaft 244 may extend from the inner diffuser bowl 282 and through the outer diffuser bowl 284 (eg, while being mechanically coupled with the impellers 232 and 238).
  • each blade 270 is fixed to the inner diffuser bowl 282 or the outer diffuser bowl 284 while being selectively attached to the other bowls 284 or 282.
  • the inner radial ends 274 of one or more vanes 270 may be formed on the outer wall surface 286 of the inner diffuser bowl 282 (eg, as a unitary unit or a single structure).
  • the outer radial end 276 of the vane 270 may then be attached to the outer diffuser bowl 284 (eg, by threaded engagement joint 290).
  • the threaded engagement joint 290 selectively attaches the outer radial end 276 of the blade 270 to the outer diffuser bowl 284 The inner wall surface 288. At the time of assembly, the threaded engagement joint 290 is thus formed between the blade 270 and the inner wall surface 288.
  • the threaded engagement joint 290 includes a pair of complementary radial thread profiles 292,294. The first radial thread profile 292 extends from the corresponding blade 270 at the outer radial end 276 (eg, radially outward or radially inward), while the second radial thread profile 294 is formed on the inner wall surface 288.
  • the first radial thread profile 292 may be a convex extrusion portion that is selectively received in a concave groove of the second radial thread profile 294.
  • the threaded engagement joint 290 can generally act as a screw, so the rotation of the outer diffuser bowl 284 or the inner diffuser bowl 282 about the axial direction A relative to the other bowl 282 or 284 can be used to make the diameter Interlock with threaded profiles 292, 294 and attach diffuser bowls 282, 284.
  • the threaded engagement engagement portion 290 may define an angled blunt thread shape (for example, as shown in FIG. 13).
  • the threaded engagement joint 290 may have a circular thread shape (for example, similar to a dome thread), a triangular thread shape (for example, similar to a sawtooth thread), a square thread shape (for example, similar to a square thread), and the like.
  • first radial thread profile 292 is shown as a convex extrusion extending radially outward from the vane profile 272 of the blade 270, and the second radial thread profile 294 is shown as being external With the recessed groove extending in the diffuser bowl 284, it is understood that this relationship can be reversed.
  • first radial thread profile 292 may be provided as a concave groove in the corresponding blade 270 and extending radially inwardly from the fin profile 272, while the second thread profile is provided as diverging from the outside.
  • the inner wall surface 288 of the bowl-shaped member 284 has a convex extrusion portion extending radially inward.
  • each profile 272 or 292 may be unique relative to the other 292 or 272.
  • the first radial thread profile 292 is defined to follow a set or constant helical path.
  • the first radial thread profile 292 therefore has a curve and thread pitch that do not change (for example along the axial direction A).
  • the thread thickness or diameter e.g., in the axial direction A or the radial direction R
  • the airfoil profile 272 may be defined along a varying or non-constant curved path.
  • the angle or curve of the fin profile 272 may be changed accordingly (for example, along the axial direction A). Therefore, the angle or shape of the vane profile 272 at the second axial end 280 may be different from the vane profile 272 at the first axial end 278 (or between the first axial end 278 and the second axial end 278). The angle or shape of the fin profile 272 between the ends 280).
  • the first radial thread profile 292 is bounded in the radial section of the airfoil profile 272. Therefore, when viewed along the radial direction R (for example, making a plane perpendicular to the radial direction R visible), the first radial thread profile 292 may appear to be completely enclosed in the fin profile 272.
  • the first radial thread profile 292 may be formed such that the non-radial extreme end (that is, the extreme perpendicular to the radial direction R, such as the axial direction A) of the first radial thread profile 292 does not Extend beyond the non-radial extreme end defined by the corresponding fin profile 272 (e.g., at the outer radial end 276).
  • the threaded engagement joint 190 may establish a seal between the blade 270 and the inner wall surface 288 or otherwise prevent cross leakage (e.g., between the high pressure side and the low pressure side of the blade 270).
  • one or more portions of the chamber pump housing 234 are provided as separate and separable upper and lower housing sections.
  • the inner diffuser bowl 282 may include an upper inner section 282A, which is selectively supported on the lower inner section 282B.
  • the outer diffuser bowl 284 may include an outer upper section 284A that is selectively supported on the outer lower section 284B.
  • one or more of the vanes 270 include a plurality of discrete or separable segments.
  • the blade 270 may include a lower section 270B fixed to the inner lower section 282B and an upper section 270A fixed to the inner upper section 282A.
  • Each of the lower section 270B and the upper section 270A defines a separate portion of the airfoil profile 272.
  • the airfoil profile 272 may be continuous across the blade 270.
  • a complementary groove-notch joint is formed between the lower section 270B and the upper section 270A.
  • the lower section 270B may define an axial groove 296 at the top surface of the lower section 270B (e.g., extending between the inner radial end 274 and the outer radial end 276).
  • the upper section 270A may define an axial notch 298 at the bottom surface of the upper section 270A. When assembled, the axial notch 298 may mate with the axial groove 296 and be received in the axial groove 296 so that relative rotation between the segments 270A, 270B (for example, around the axial direction A) is prevented Or limit.
  • one or more of the blades 270 include a plurality of threaded engagement joints 290.
  • threaded engagement joints 290 each including a complementary first radial thread profile 292 and a second radial thread profile 294-can be combined with the upper section 270A and the lower section 270B of the blade 270 Included together. Therefore, the lower threaded engagement joint 290 may be formed between the lower section 270B and the outer lower section 284B of the blade 270.
  • the upper threaded engagement joint 290 may be formed between the upper section 270A and the outer upper section 284A of the blade 270.
  • the first radial thread profile 292 of both the lower section 270B and the upper section 270A is bounded in the radial section of the wing profile 272 (e.g., in the wing profile 272 by the corresponding 270A, 270B).
  • the lower threaded engagement portion and the upper threaded engagement portion 290 may be defined along the same path (eg, such that the radial thread profiles 292, 294 are defined according to the same thread pitch or size).
  • the lower threaded engagement engagement portion and the upper threaded engagement engagement portion 290 may each be unique.
  • each threaded engagement joint 290 may define a different thread pitch (for example, the axial distance between the crest of one thread and the crest of another axially adjacent tooth—if a predetermined path is followed, so that There are multiple crests).
  • first radial thread profile 292 and the second radial thread profile 294 of the first engaging joint 290 may define the first thread pitch
  • first radial thread profile 292 and the second radial thread profile 294 of the second engaging joint 290 may define the first thread pitch
  • first radial thread profile 292 and the second radial thread profile 294 of the second engaging joint 290 may define a second thread pitch that is not equal to the first thread pitch.
  • the second thread pitch may be greater than the first thread pitch.
  • a pair of complementary lips 310, 312 may be included in the outer upper section 284A and outer Upper section 284B.
  • the lower radial lip 312 may extend outward from the outer lower section 284B (eg, opposite to the inner wall surface 288), while the upper radial lip 310 extends outward from the outer upper section 284A.
  • a complementary groove-notch joint is formed between the lower section 270B and the upper section 270A.
  • the upper radial lip 310 may define an axial groove 314 at the bottom surface of the upper radial lip 310 (eg, extend in a circumferential direction around the axial direction A).
  • the lower radial lip 312 may define an axial notch 316 at the top surface of the lower radial lip 312.
  • the complementary groove-notch junction can seal the outer diffuser bowl 284 and prevent fluid from passing between the radial lips 310, 312.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种洗碗设备（100），该洗碗设备（100）包括桶（104）、集液槽（170）、腔室泵壳体（234）、叶片（270）、以及螺纹接合接合部（290）；腔室泵壳体（234）安装在集液槽（170）的至少一部分中；腔室泵壳体（234）限定内壁表面（288）；叶片（270）定位在腔室泵壳体（234）中；叶片从内径向端部（274）延伸至外径向端部（276）；叶片（270）限定翼片轮廓（272）；螺纹接合接合部（290）包括第一径向螺纹轮廓（292）和第二径向螺纹轮廓（294）；第一径向螺纹轮廓（292）在外径向端部（276）处从叶片（270）径向地延伸；第二径向螺纹轮廓（294）形成在内壁表面（288）上；第二径向螺纹轮廓（294）与第一径向螺纹轮廓（292）互补。

Description

洗碗设备以及泵组件 技术领域
本主题总体上涉及洗碗设备，更具体地涉及具有用于引导流体通过其中的泵与组件的洗碗设备。
背景技术
洗碗机或洗碗设备通常包括桶，其限定了用于接收用于清洗的物品的清洗腔室。门提供或允许选择性进入该清洗腔室。在清洗或漂洗周期期间，洗碗设备通常使流体通过清洗腔室在物品(比如，罐、盘、银餐具等)上面循环。该流体可以是例如清洗周期期间的水与洗洁剂的各种组合或者漂洗周期期间的水(其可以包括添加剂)。在漂洗周期完成之后，可以执行排水周期，以从清洗腔室中去除流体。通常，提供有一个或更多个泵来激励流体通过清洗腔室或从中离开。例如，通常使用循环泵来使洗碗设备中的流体在给定周期期间循环。流体被收集到清洗腔室的底部处或其附近的集液槽中，并且通过例如喷洒臂中的喷嘴或对着待清洁或漂洗的物品引导流体的其它开口而被泵送回到清洗腔室中。在漂洗周期完成之后，可以启动排水泵来将流体泵送出清洗腔室。
通常，循环泵或排水泵包括壳体，壳体具有用于引导流体通过壳体的管线或限定通道。然而，现有构造存在挑战。例如，将流体导向到洗碗设备的各个部分而不招致压力上的显著变化通常很困难。在一些情况下，这些可能会大大地降低相应的泵或洗碗机的效率。产生预限定路径以逐渐重新引导流体流动或缓和压力变化的特征(比如流体通道或叶片)可能难以组装或结合到现有设计中。此外，它们可能难以密封并难以确保流体不会偏离预限定路径。
因此，提供一种解决上述的一个或更多问题的洗碗设备将是有益的。尤其是提供一种包括用于引导流体通过泵壳体而防止其中的流体或压力泄漏的特征 的洗碗设备可能是有利的。
发明内容
本发明的方面和优点将部分地在以下描述中阐述，或者可以从描述中变得明显，或者可以通过本发明的实践获悉。
在本公开的一个示例性方面，提供了一种洗碗设备。该洗碗设备可以包括桶、集液槽、腔室泵、叶片、以及螺纹接合接合部。桶可以限定清洗腔室。集液槽可以定位在桶的底部部分处。集液槽可以限定轴向方向。腔室泵壳体可以安装在集液槽的至少一部分中。腔室泵壳体可以限定内壁表面。叶片可以定位在腔室泵壳体中。叶片可以从内径向端部延伸至外径向端部。叶片可以限定翼片轮廓。螺纹接合接合部可以形成在内壁表面与叶片之间。螺纹接合接合部可以包括第一径向螺纹轮廓和第二径向螺纹轮廓。第一径向螺纹轮廓可以在外径向端部处从叶片径向地延伸。第二径向螺纹轮廓可以形成在内壁表面上。第二径向螺纹轮廓可以与第一径向螺纹轮廓互补。
在本公开的另一个示例性方面中，提供了一种洗碗设备。该洗碗设备可以包括桶、集液槽、腔室泵、叶片、以及螺纹接合接合部。桶可以限定清洗腔室。集液槽可以定位在桶的底部部分处。集液槽可以限定轴向方向。腔室泵壳体可以安装在集液槽的至少一部分中。腔室泵壳体可以限定内壁表面。叶片可以定位在腔室泵壳体中。叶片可以从内径向端部延伸至外径向端部。叶片可以限定翼片轮廓。螺纹接合接合部可以形成在内壁表面与叶片之间。螺纹接合接合部可以包括第一径向螺纹轮廓和第二径向螺纹轮廓。第一径向螺纹轮廓可以在外径向端部处从叶片径向地延伸。第一径向螺纹轮廓可以定边界在翼片轮廓的径向截面中。第二径向螺纹轮廓可以形成在内壁表面上。第二径向螺纹轮廓可以与第一径向螺纹轮廓互补。
参考以下描述和所附权利要求，将更好地理解本发明的这些和其它特征、方面和优点。包含在本说明书中并构成本说明书的一部分的附图示出了本发明 的实施例，并与说明书一起用于说明本发明的原理。
附图说明
参考附图，在说明书中阐述了本发明的对于本领域普通技术人员来说完整并且能够实现的公开内容，包括其最佳模式。
图1提供了根据本公开的示例性实施例的洗碗设备的前视透视图。
图2提供了图1的示例性洗碗设备的侧视截面图。
图3提供了图1的示例性洗碗设备的集液槽的截面图。
图4提供了图1的示例性洗碗设备的泵组件的侧视透视图。
图5提供了图4的示例性泵组件的底部透视图。
图6提供了图3的示例性集液槽的底部透视图，出于清楚的目的，从其中部分地去除了泵并且去除了集液槽的底部部分。
图7提供了循环周期期间的图3的示例性集液槽的截面图。
图8提供了排水周期期间的图3的示例性集液槽的截面图。
图9提供了图4的示例性泵组件的一部分的截面图。
图10提供了图4的示例性泵组件的一部分的截面图，其中为了清楚已经去除了一部分。
图11提供了图4的示例性泵组件的多个叶片的放大透视图。
图12提供了图4的示例性泵组件的下部部分的透视图。
图13提供了图4的示例性泵组件的叶片的下部部分的顶部透视图。
图14提供了图4的示例性泵组件的下部内部分的透视图。
图15提供了图4的示例性泵组件的下部外部分的透视图。
具体实施方式
现在将详细参考本发明的实施例，其一个或多个示例在附图中示出。提供每个示例是为了解释本发明，而不是限制本发明。事实上，对于本领域技术人 员来说将明显的是，在不脱离本发明的范围或精神的情况下，可以在本发明中进行各种修改和变化。例如，作为一个实施例的一部分示出或描述的特征可以与另一个实施例一起使用，以产生又一个实施例。因此，本发明旨在覆盖落入所附权利要求及其等同物的范围内的这些修改和变化。
如本文所使用的，术语“或”通常旨在是包括性的(即，“A或B”意指“A或B或两者”)。术语“第一”、“第二”和“第三”可以互换使用以将一个部件与另一个区分开，并且不旨在表明各个部件的位置或重要性。术语“上游”和“下游”是指相对于流体路径中的流体流动的相对流动方向。例如，“上游”指流体流动来的流动方向，而“下游”指流体流动去的流动方向。
图1和图2描绘了根据本公开的示例性实施例的洗碗设备100。如图1所示，洗碗设备100包括柜体102。柜体102中具有限定清洗隔室106的桶104。桶104还限定了前部开口(未示出)。洗碗设备100包括门120，其在门120的底部122处铰接以用于在通常的竖直封闭位置(在图1和图2中示出)与水平打开位置之间移动，在通常的竖直封闭位置中，清洗隔室106被密封关闭以用于清洗操作，水平打开位置用于从洗碗设备100中装载或卸载物品。在一些实施例中，闩锁123用于锁定和解锁门120以进入清洗隔室106。桶104还包括集液槽170，其邻近桶104的底部部分112定位，并构造成在洗碗设备100的操作期间接收液态清洗流体(例如，水、洗洁剂，清洗流体、或任何其它合适流体)。
在某些实施例中，管口160邻近洗碗设备100的集液槽170定位。管口160构造成用于将液体引导到集液槽170中。管口160可以从例如水供给(未示出)或任何其它合适的源接收液体。在替代实施例中，管口160可以定位在洗碗设备100内的任何合适位置(例如，使得管口160将液体引导到桶104中)。管口160可以包括阀(未示出)，使得液体可以选择性地被引导到桶104中。因此，例如，在下文描述的周期期间，管口160可以按照洗碗设备100的当前周期的需要选择性地将水或清洗流体引导到集液槽170中。
支架组件130和132可以可滑动地安装在清洗隔室106内。在一些实施例中，每个支架组件130和132被制造成包括多个细长构件134的格状结构。支架组件130和132中的每个支架总体上都适于在延伸装载位置(未示出)和缩回位置(在图1和图2中示出)之间移动，在延伸装载位置中，支架基本上定位在清洗隔室106的外部，在缩回位置中，支架位于清洗隔室106的内部。银餐具篮(未示出)可以可移除地附接至支架组件132，以用于放置太小而不能被支架130和132收纳的银餐具、用具及类似物。
在某些实施例中，洗碗设备100包括下部喷洒组件144，其可旋转地安装在清洗隔室106的下部区域146内和集液槽170上方，以便相对接近地靠近支架组件132而旋转。可选地，中层喷洒组件148位于清洗隔室106的上部区域中，并且可以位于接近地靠近上部支架130处。附加地或替代地，上部喷洒组件150可以位于上部支架130上方。
在示例性实施例中，下部喷洒组件144和中层喷洒组件148以及上部喷洒组件150由流体循环组件152供应，用于使水和洗碗机流体在桶104中循环。流体循环组件152包括一个或更多的流体泵(例如，循环泵154或错流泵/排水泵156)。如下面将更详细讨论的，一些实施例包括至少部分地定位在集液槽170内的循环泵154和定位在循环泵154下方的与集液槽170流体连通的排水泵。附加地，排水泵156可以构造成用于在启动时促进清洗流体从集液槽170流动到排水口158。相比之下，循环泵154可以构造成用于在启动时通过一个或更多的循环导管226将清洗流体流从集液槽170供给到喷洒组件144、148和150。此外，过滤器组件也可以至少部分地定位在集液槽170中，以用于在清洗流体流动到循环泵154之前从该清洗流体中过滤食物颗粒或其它碎片(本文中统称为污物)。
喷洒组件144和148包括排放喷嘴或孔口的布置，其用于将清洗流体引导到位于支架组件130和132中的餐具或其它物品上。喷洒组件144和148中的 排放喷嘴的布置借助于流动通过排放端口的清洗流体来提供旋转力。喷洒组件144和148的合成旋转通过喷洒清洗流体来提供对餐具和其它洗碗机内容物的覆盖。
洗碗设备100进一步配备有控制器137，以调节洗碗设备100的操作。控制器137可以包括存储器(例如，不可转移介质)和微处理器，比如可操作以执行与清洗操作相关的编程指令或微控制代码的通用或专用微处理器。存储器可以表示随机存取存储器(比如DRAM)，或只读存储器(诸如ROM或FLASH)。在一个实施例中，处理器执行存储在存储器中的编程指令。存储器可以是与处理器分开的部件，或者可以包括搭载在处理器内。替代地，可以在不使用微处理器的情况下构建控制器137(例如，使用分立的模拟或数字逻辑电路的组合，比如开关、放大器、积分器、比较器、触发器、与门等)以执行控制功能而不是依赖软件。
控制器137可以定位在遍及洗碗设备100的多个位置。在示出的实施例中，控制器137可以位于门120的控制面板区域121内，如所示出的。在这样的实施例中，输入/输出(“I/O”)信号可以沿着线束在洗碗设备100的控制器137和各个操作部件之间传递，所述线束可以通过门120的底部122进行布线。通常，控制器137包括用户界面面板136，用户可以通过该用户界面面板来选择各种操作特征和模式并监控洗碗设备100的过程。在一个实施例中，用户界面136可以表示通用I/O(“GPIO”)装置或功能块。在一个实施例中，用户界面136可以包括输入部件，比如包括旋转拨盘、按钮和触摸板的各种电气、机械或机电输入设备中的一者或更多者。用户界面136可以包括显示部件，比如被设计成向用户提供操作反馈的数字或模拟显示装置。用户界面136可以经由一根或更多信号线或共享通信总线与控制器137通信(例如，电通信或有线通信)。
应当理解，本文公开的主题不限于洗碗设备的任何特定样式、模型或构造，并且附图中描绘的实施例仅用于说明性用途。例如，洗碗设备100可以具有利 用从柜体中牵引出并可以从顶部进入以用于物品的装载和卸载的抽屉的已知构造，而不是图1所描绘的支架130和132。
现在转向图3至图15，图3以及图6至图8提供了集液槽170的各种视图，其包括泵组件200和用于该泵组件的壳体234。图4和图5提供了与集液槽170分离的泵组件200的部分的各种视图。图9至图15提供了包括腔室泵壳体234的泵组件200的部分的各种视图。
如上所述，集液槽170沿着竖直方向V定位在桶104(图2)的底部部分112处。集液槽170限定了轴向方向A，该方向可以例如平行于竖直方向V。可选地，集液槽170与桶104的底壁142一体地形成。然而，在其它实施例中，集液槽170可以代替地独立于桶104的底壁142而形成，并且以任何合适的方式附接至桶104的底壁142。此外，集液槽170可以具有任何合适的取向。
如所示出的，集液槽170包括侧壁202和底壁204。侧壁202可以限定沿着轴向方向A的大致柱形的形状，然而在其它实施例中，侧壁202可以代替地限定沿着轴向方向A的其它合适的形状，比如截头圆锥形状或者替代地倒截头圆锥形状。
在示例性实施例中，底壁204从侧壁202径向向内延伸并限定了由壁202、204界定的凹陷腔室206。凹陷腔室206在其周界处通过底壁204的向下延伸的边缘部分而大体向下地(例如，朝向轴向方向A或平行于轴向方向)限定。凹陷腔室206还限定了开口210，该开口具有例如大体圆形的形状。此外，底壁204在一部分中限定了敞开到凹陷腔室206中的排水开口208。
在一些实施例中，过滤器组件沿着轴向方向A至少部分地定位在集液槽170中(例如，作为泵组件200的一部分或与其一起)。过滤器组件可以包括多个面板，比如侧部面板212、底部面板214、或顶部面板(未示出)。侧部面板212、底部面板214、和顶部面板中的一者或更多者可以包括过滤器介质，其限定构造成允许清洗流体通过其中而防止大于预定尺寸的污物(比如，食物颗粒或其它 碎片)通过其中的多个开口或孔洞。例如，在某些实施例中，侧部面板212、底部面板214、和顶部面板中的一者或更多者可以包括细网目材料。
在示例性实施例中，循环泵154包括在泵组件200中。更具体地，循环泵154包括流体叶轮(例如，循环叶轮232)和腔室泵壳体234。当组装时，循环叶轮232定位在泵组件200中，并且可以被腔室泵壳体234围封。在一些实施例中，包括腔室泵壳体234的循环泵154通过例如一个或更多个弹性体立柱222沿着轴向方向A保持就位。
如将在下文进一步描述的，泵壳体234限定了多个内部通道236，所述内部通道在叶轮232的下游并与循环导管226(图2)流体连通。因此，内部通道236与一个或更多个喷洒组件(142、148、150)流体连通。内部通道236可以将来自循环叶轮232的清洗流体的流F引导至循环导管226(例如，在循环周期期间)。一个或更多个扩散器叶片270在腔室泵壳体234中延伸(例如，径向地)以将流F的速度水头转化为内部通道236中的静水头。在示例性实施例中，循环泵154至少部分地定位在过滤器组件内(例如，在其一个或更多个面板内)。
如所描述的，一些实施例包括安装在集液槽170的一部分内的电马达242。例如，电马达242可以被封装在腔室泵壳体234的从叶片270径向向内的一部分内。
在可选实施例中，至少一个弹性体立柱222和相应的支撑管250形成配合的电插头-插座252。例如，至少一个弹性体立柱222可以包括电凸插头252A，而相应的支撑管250包括电凹插座252B。替代地，电凸插头252A可以被设置在支撑管250内，而凹插座252B设置在弹性体立柱222上或内部。弹性体立柱222可以与电源传导连通或电连通(例如，通过一个或更多各中间传导线或总线)。支撑管250可以与电马达242传导连通或电连通。在组装时，配合的电插头-插座252可以将电源连接至电马达242。因此可以通过至少一个弹性体立柱222与电马达242形成电连接。
在一些实施例中，泵组件200包括排水泵156，其自身包括流体叶轮(例如，排水叶轮238)以及排水泵壳体240。当组装时，排水叶轮238可以被排水泵壳体240围封，并且排水泵壳体240可以附接到集液槽170或以其它方式由集液槽170形成。更具体地，排水泵壳体240定位在由集液槽170组件的底壁204限定的凹陷腔室206下方并通过集液槽170的底壁204的排水开口208与凹陷腔室206流体连通。可选地，排水泵壳体240可以与集液槽170一体地形成，或者替代地可以以任何合适的方式附接至集液槽170。
如所示出的，涡形盖254可以定位成横跨排水开口208的至少一部分或在其上面。在一些实施例中，涡形盖254安装到腔室泵壳体234(例如，经由一种或更多种粘合剂、机械紧固件或一体化的多构件)。当组装时，涡形盖254因此可以定位在电马达242与排水叶轮238之间(例如，沿着轴向方向A)。盖开口或入口256被限定通过涡形盖254(例如，沿着轴向方向A或者平行于竖直方向V的方向或非正交于竖直方向V的其它方向)。凹陷腔室206与排水泵壳体240之间的流体连通和流F因此可以被允许通过盖入口256。
在一些实施例中，涡形盖254包括径向凸缘(例如，沿着涡形盖254的径向或外周界)。例如，径向凸缘258可以在涡形盖254的径向最外部分处绕着轴向方向A设置。在组装时，径向凸缘258可以至少部分地定位在绕着排水开口208或在其附近延伸的弹性体密封件260的上方。
如所示出的，弹性体密封件260可以在通常相对于竖直方向V或轴向方向A高于排水叶轮238的位置处安装在集液槽170上(例如，在底壁204上)。弹性体密封件260可以进一步至少部分地沿着轴向方向A定位在径向凸缘258与凹陷腔室206之间(或在径向凸缘258与排水叶轮238之间)。在一些实施例中，弹性体密封件260包括环形支撑主体和从其延伸的接合表面。例如，接合表面可以从环形支撑主体处朝向轴向方向A径向向内地延伸。
在一些实施例中，泵组件200包括与电马达242接合(例如，以机械连通 的方式)的轴向轴244。在操作期间，轴向轴244可以因此通过电马达242旋转。如所示出的，电马达242可以定位在排水叶轮238或循环叶轮232上方(例如沿着竖直方向V或轴向方向A)。此外，循环叶轮232可以定位在涡形盖254上方。在示例性实施例中，轴向轴244沿着轴向方向A延伸穿过循环叶轮232，穿过涡形盖254(例如在盖入口256处)并且延伸到排水叶轮238中。轴向轴244可以选择性地与排水叶轮238和循环叶轮232接合，使得轴向轴244的旋转使排水叶轮238旋转或使循环叶轮232旋转。
在可选实施例中，循环泵154可以包括与循环叶轮232和轴向轴244机械连通的单向离合器(未示出)。当轴向轴244通过电马达242在第一方向上旋转时，循环叶轮232的单向离合器构造成接合循环叶轮232并使循环叶轮232旋转。替代地，循环叶轮232可以固定至轴向轴244(例如，使得轴向轴242在第一方向或第二方向上的旋转致使循环叶轮232旋转)。
在附加或替代实施例中，排水泵156进一步包括与排水叶轮238和轴向轴244机械连通的单向离合器268。当轴向轴244通过电马达242在第二方向(第二方向为第一方向的相反方向)上旋转时，排水叶轮238的单向离合器268构造成接合排水叶轮238并使排水叶轮238旋转。在一些这样的实施例中，在给定时间，循环泵154和排水泵156中只有一个可以启动。替代地，排水叶轮238可以固定至轴向轴244(例如，使得轴向轴242在第一方向或第二方向上的旋转使排水叶轮238旋转)。
有利地，包括电马达242和叶轮232、238的本泵组件200可以通过将腔室泵壳体234下放到集液槽170中而组装，不需要在凹陷腔室206下方的区域中的单独的电马达，或者不需要进入该区域。附加地或替代地，大部分(如果不是全部)泵组件200(例如电马达242、腔室泵壳体234、涡形盖254、以及叶轮232、238)可以在安装在集液槽170中之前进行预组装。
现在参考特别是图7，集液槽170被描绘成在循环泵154(图2)的操作期 间，比如在示例性洗碗设备100的循环周期(例如清洗或漂洗周期)期间。在循环泵154的操作期间，可以在过滤器组件的底部面板214与集液槽170的底壁204之间限定通路246。如所示出的，通路246可以进一步在底部面板214与涡形盖254之间延伸。通路246通常允许清洗流体进入过滤器组件的底部面板214。因此，在循环泵154的操作期间，循环泵154的叶轮232可以牵引清洗流体F的流通过过滤器组件(例如，通过顶部面板、侧部面板212、或底部面板214，使得清洗流体向内流动通过面板)。流体可以从通路246通过入口248流动进入腔室泵壳体234。在腔室泵壳体234中，流体可以流动通过内部通道236并经过扩散器叶片270或在其上面流动。每个扩散器叶片270的翼片轮廓272可以用于将流体流的速度水头转化为静水头。流体可以从内部通道236继续流动到下游(例如，流动到一个或多个喷洒组件142、148、150)。
在循环泵154的操作期间，清洗流体中的污物可以受重力作用而朝向限定在集液槽170的底壁204中的凹陷腔室206。例如，循环泵154的入口248邻近过滤器组件的底部面板214定位，并且因此清洗流体可以首先被牵引通过过滤器组件的底部面板214。附加地或替代地，因为凹陷腔室206定位在集液槽170的底部处，所以重力作用力还可以导致污物受重力作用而朝向凹陷腔室206。这种构造可以允许集液槽170的高效排水和清洁，因为排水开口208敞开到由底壁204限定的凹陷腔室206中。如所示出的，底壁204可以包括或被提供为实心连续表面。因此，底壁204的至少一部分(例如，其最下部表面，该最下部表面正好在凹陷腔室206和叶轮238下面)可以没有水可以通过的开口或孔(例如，竖直开口)。
现在特别参考图8，集液槽170被描绘成在排水泵156(图2)的操作期间，比如在示例性洗碗设备100的排水周期期间。在排水泵156的操作期间，清洗流体流F可以从集液槽170牵引通过集液槽170的底壁204中的凹陷腔室206，并且通过底壁204的排水泵开口208。由于许多污物可能位于凹陷腔室206中， 所以排水泵156可以更快速地排出先前聚集在底壁204的凹陷腔室206中的污物，并且可以将较少的污物留到随后的循环。
现在特别转至图3、图4以及图9至图15，在一些实施例中，在腔室泵壳体234中设置有一个或更多扩散器叶片270。特别地，扩散器叶片270可以定位在(例如，至少部分地限定)内部通道236中。
如所示出的，每个叶片270大体从内径向端部274延伸(例如，沿着径向方向R)至外径向端部276。此外，每个扩散器叶片270可以限定翼片轮廓272。继而，每个扩散器叶片270的外表面在第一轴向端部278与第二轴向端部280之间通常为弯曲的或非线性的。翼片轮廓272可以具有变化的叶片宽度或厚度(例如，使得翼片轮廓272的厚度在两个轴向端部278、280之间渐缩)并且通常用于形成高压侧部和低压侧部。使用期间(例如，在循环操作期间)，腔室壳体234中的流体流可以根据关于轴向方向A的相对螺旋或弯曲的路径而被引导到内部通道236中。
在某些实施例中，分立的内扩散器碗状件282和外扩散器碗状件284与腔室泵壳体234包括在一起。如所示出的，内扩散器碗状件282至少部分地封装在外扩散器碗状件284中。当组装时，外扩散器碗状件284和内扩散器碗状件282的至少一部分可以间隔开(例如，沿着径向方向R)以限定例如内部通道236的径向边界。例如，内部通道236可以限定在内扩散器碗状件282的外壁表面286与外扩散器碗状件284的内壁表面288之间。如所示出的，外扩散器碗状件284可以限定入口248(例如，在内扩散器碗状件282下方)和下游出口249(例如，在内扩散器碗状件282上方并与喷洒组件142、148、150中的一个或更多个流体连通)。因此，内部通道236可以延伸横跨外扩散器碗状件284中的内扩散器碗状件282。附加地或替代地，叶轮232可以被容纳在外扩散器碗状件284中，同时保持在内扩散器碗状件282的外部。可选地，马达242可从扩散器叶片270径向向内定位。例如，马达242可以被封装在内扩散器碗状件282内并 被密封以免与内部通道236流体连通。如所示出的，轴向轴244可以从内扩散器碗状件282处延伸并且通过外扩散器碗状件284而延伸出(例如，同时机械地与叶轮232和238联接)。
在某些实施例中，每个叶片270都固定至内扩散器碗状件282或外扩散器碗状件284，同时选择性地附接至其它碗状件284或282。例如，一个或更多叶片270的内径向端部274可以形成在内扩散器碗状件282的外壁表面286上(例如，作为一体式整体或单个结构)。叶片270的外径向端部276然后可以附接至外扩散器碗状件284(例如，通过螺纹接合接合部290)。
在图3、图4以及图9至图15中示出的示例性实施例中，螺纹接合接合部290选择性地将叶片270的外径向端部276附接至外扩散器碗状件284的内壁表面288。在组装时，螺纹接合接合部290因此形成在叶片270与内壁表面288之间。如所示出的，螺纹接合接合部290包括一对互补的径向螺纹轮廓292、294。第一径向螺纹轮廓292在外径向端部276处从相应的叶片270延伸(例如，径向向外或径向向内)，而第二径向螺纹轮廓294形成在内壁表面288上。例如，第一径向螺纹轮廓292可以为凸出的挤出部，其选择性地接收在第二径向螺纹轮廓294的凹入的凹槽中。螺纹接合接合部290可以大体上充当螺钉，因此外扩散器碗状件284或内扩散器碗状件282绕着轴向方向A相对于另一个碗状件282或284的旋转可以用于使径向螺纹轮廓292、294互锁并且附接扩散器碗状件282、284。
可以提供任何合适的螺纹形状。例如，当沿着垂直于轴向方向A的截面观察时，螺纹接合接合部290可以限定成角度的钝头的螺纹形状(例如，如图13中所示出的)。替代地，螺纹接合接合部290可以具有圆形螺纹形状(例如，类似于圆顶螺纹)、三角螺纹形状(例如，类似于锯齿螺纹)、方形螺纹形状(例如，类似于方形螺纹)等。
注意的是，尽管第一径向螺纹轮廓292被示出为从叶片270的翼片轮廓272 径向向外延伸的凸出的挤出部，并且第二径向螺纹轮廓294被示出为在外扩散器碗状件284中延伸的凹入的凹槽，理解的是，这种关系可以颠倒。换句话说，第一径向螺纹轮廓292可以被设置为在相应的叶片270内并从翼片轮廓272径向向内延伸的凹入的凹槽，而第二螺纹轮廓被设置为从外扩散器碗状件284的内壁表面288径向向内延伸的凸出的挤出部。
虽然翼片轮廓272和第一径向螺纹轮廓292二者都设置在相同的叶片270上或由其限定，但是每个轮廓272或292都可以相对于另一个292或272是独特的。特别地，第一径向螺纹轮廓292被限定为沿着设定的或恒定的螺旋路径。第一径向螺纹轮廓292因此具有不改变(例如沿着轴向方向A)的曲线和螺纹节距。可选地，螺纹厚度或直径(例如，在轴向方向A或径向方向R上)可以是恒定的。与第一径向螺纹轮廓292相比，翼片轮廓272可以沿着变化或非恒定的弯曲路径限定。翼片轮廓272的角度或曲线可以因此改变(例如，沿着轴向方向A)。因此，翼片轮廓272的角度或形状在第二轴向端部280处可以不同于翼片轮廓272在第一轴向端部278处(或者在第一轴向端部278与第二轴向端部280之间的翼片轮廓272的其它部分处)的角度或形状。
在一些实施例中，第一径向螺纹轮廓292定边界在翼片轮廓272的径向截面中。因此，在沿着径向方向R观察时(例如，使得垂直于径向方向R的平面可见)，第一径向螺纹轮廓292可以呈现为完全被围封在翼片轮廓272中。换句话说，第一径向螺纹轮廓292可以形成为使得第一径向螺纹轮廓292的非径向极值端(即，垂直于径向方向R，比如轴向方向A，的极值)不延伸超过由相应的翼片轮廓272(例如，在外径向端部276处)限定的非径向极值端。
有利地，螺纹接合接合部190可以在叶片270与内壁表面288之间建立密封或者以其它方式防止交叉泄漏(例如，在叶片270的高压侧部与低压侧部之间)。
在某些实施例中，腔室泵壳体234的一个或更多部分被设置为分立且可分 开的上部壳体部段和下部壳体部段。作为示例，内扩散器碗状件282可以包括内上部部段282A，其被选择性地支撑在内下部部段282B上。作为附加或替代示例，外扩散器碗状件284可以包括外上部部段284A，其被选择性地支撑在外下部部段284B上。因此，扩散器碗状件282、284中的一个或两个可以选择性地分开或附接(例如，在有利地提供在其附接点处的流体密封的同时)。
在其中的内扩散器碗状件282包括内上部部段282A和内下部部段282B的某些实施例中，叶片270中的一个或更多个包括多个分立或可分开的分段。例如，叶片270可以包括固定至内下部部段282B的下部分段270B和固定至内上部部段282A的上部分段270A。下部分段270B和上部分段270A中的每个都限定翼片轮廓272的分开部分。当下部分段270B和上部分段270A附接在一起(例如，彼此接触)时，翼片轮廓272可以在整个叶片270上连续。在一些这样的实施例中，互补凹槽-槽口接合部形成在下部分段270B与上部分段270A之间。例如，下部分段270B可以在下部分段270B的顶部表面处限定轴向凹槽296(例如，在内径向端部274与外径向端部276之间延伸)。类似地，上部分段270A可以在上部分段270A的底部表面处限定轴向槽口298。当组装时，轴向槽口298可以与轴向凹槽296配合并接收在轴向凹槽296中，使得分段270A、270B之间的相对旋转(例如，绕着轴向方向A)被防止或限制。
在其中的外扩散器碗状件284包括外上部部段284A和外下部部段284B的附加或替代实施例中，叶片270中的一个或更多个包括多个螺纹接合接合部290。例如，单独或独特的螺纹接合接合部290——每个都包括互补的第一径向螺纹轮廓292和第二径向螺纹轮廓294——可以与叶片270的上部分段270A和下部分段270B包括在一起。因此，下部螺纹接合接合部290可以形成在叶片270的下部分段270B与外下部部段284B之间。此外，上部螺纹接合接合部290可以形成在叶片270的上部分段270A与外上部部段284A之间。在一些这样的实施例中，下部分段270B和上部分段270A二者的第一径向螺纹轮廓292定边界在翼 片轮廓272的径向截面中(例如，在翼片轮廓272的由相应的分段270A、270B限定的部分中)。
可选地，下部螺纹接合接合部和上部螺纹接合接合部290可以沿着相同的路径限定(例如，使得径向螺纹轮廓292、294根据相同的螺纹节距或尺寸而限定)。替代地，并且如示出的，下部螺纹接合接合部和上部螺纹接合接合部290每个都可以是独特的。作为示例，每个螺纹接合接合部290可以限定不同的螺纹节距(例如，一个螺纹的牙顶与另一个轴向邻近的牙顶之间的轴向距离——如果遵循了预定路径，使得提供有多个牙顶)。换句话说，第一接合接合部290的第一径向螺纹轮廓292和第二径向螺纹轮廓294可以限定第一螺纹节距，并且第二接合接合部290的第一径向螺纹轮廓292和第二径向螺纹轮廓294可以限定不等于第一螺纹节距的第二螺纹节距。例如，第二螺纹节距可以大于第一螺纹节距。
在其中的外扩散器碗状件284包括外上部部段284A和外下部部段284B的进一步附加或替代的实施例中，一对互补唇部310、312可以被包括在外上部部段284A和外下部部段284B上。下部径向唇部312可以从外下部部段284B向外延伸(例如，与内壁表面288相反)，而上部径向唇部310从外上部部段284A向外延伸。在一些这样的实施例中，互补凹槽-槽口接合部形成在下部分段270B与上部分段270A之间。例如，上部径向唇部310可以在上部径向唇部310的底部表面处限定轴向凹槽314(例如，沿着围绕轴向方向A的周向方向延伸)。类似地，下部径向唇部312可以在下部径向唇部312的顶部表面处限定轴向槽口316。当组装时，轴向槽口316可以与轴向凹槽314配合并接收在轴向凹槽314中，使得部段之间的相对径向运动被防止或限制。此外，互补凹槽-槽口接合部可以密封外扩散器碗状件284并防止流体在径向唇部310、312之间经过。
本书面描述使用示例来公开本发明，包括最佳模式，并且还使本领域任何技术人员能够实践本发明，包括制造和使用任何装置或系统以及执行任何结合 的方法。本发明的专利范围由权利要求限定，并且可以包括本领域技术人员想到的其它示例。如果这样的其他示例包括不与权利要求的字面语言不同的结构元件或者如果它们包括与权利要求的字面语言无实质差异的等同结构元件，则这样的其他示例旨在落在权利要求的范围内。

Claims (20)

  1. 一种洗碗设备，包括：
    桶，所述桶限定清洗腔室；
    集液槽，所述集液槽定位在所述桶的底部部分处，所述集液槽限定了轴向方向，
    腔室泵壳体，所述腔室泵壳体安装在所述集液槽的至少一部分中，所述腔室泵壳体限定有内壁表面；
    叶片，所述叶片定位在所述腔室泵壳体中，所述叶片从内径向端部延伸至外径向端部，所述叶片限定有翼片轮廓；以及
    螺纹接合接合部，所述螺纹接合接合部形成在所述内壁表面与所述叶片之间，所述螺纹接合接合部包括：
    在所述外径向端部处自所述叶片径向地延伸的第一径向螺纹轮廓，以及
    形成在所述内壁表面上的第二径向螺纹轮廓，所述第二径向螺纹轮廓与所述第一径向螺纹轮廓互补。
  2. 根据权利要求1所述的洗碗设备，其中，所述腔室泵壳体包括下部壳体和上部壳体，所述上部壳体能够选择性地与所述下部壳体分开，其中，所述叶片包括附接至所述下部壳体的下部分段以及附接至所述上部壳体的上部分段，其中，所述螺纹接合接合部为形成在所述内壁表面与所述下部分段之间的第一螺纹接合接合部，并且其中，所述洗碗设备进一步包括形成在所述内壁表面与所述上部分段之间的第二螺纹接合接合部，所述第二螺纹接合接合部包括：
    在所述外径向端部处从所述上部分段径向地延伸的第一径向螺纹轮廓，以及
    在所述第一接合接合部的第二径向螺纹轮廓上方形成在内壁表面上的第二径向螺纹轮廓，所述第二接合接合部的第二径向螺纹轮廓与所述第二接合接合部的第一径向螺纹轮廓互补。
  3. 根据权利要求2所述的洗碗设备，其中，所述第一接合接合部在所述第一接合接合部的第一径向螺纹轮廓和第二径向螺纹轮廓处限定了第一螺纹节距，其中，所述第二接合接合部在第二接合接合部的第一径向螺纹轮廓和第二径向螺纹轮廓处限定了第二螺纹节距，并且其中，所述第二螺纹节距不等于所述第一螺纹节距。
  4. 根据权利要求3所述的洗碗设备，其中，所述第二螺纹节距大于所述第一螺纹节距。
  5. 根据权利要求2所述的洗碗设备，其中，所述下部分段在所述下部分段的顶部表面处限定了轴向凹槽，其中，所述上部分段在所述上部分段的底部表面处限定了轴向槽口，并且其中，所述上部分段的轴向槽口选择性地配合至所述下部分段的轴向凹槽。
  6. 根据权利要求2所述的洗碗设备，其中，所述下部泵壳体包括与所述内壁表面相反地延伸的下部径向唇部，其中，所述上部泵壳体包括与所述内壁表面相反地延伸的上部径向唇部，其中，所述上部径向唇部在所述上部径向唇部的底部表面处限定了轴向凹槽，其中，所述下部分段在所述下部分段的顶部表面处限定了轴向槽口，并且其中，所述下部径向唇部的轴向槽口选择性地配合至所述上部径向唇部的轴向凹槽。
  7. 根据权利要求1所述的洗碗设备，进一步包括：
    电马达，所述电马达相对于所述叶片径向向内地封装在腔室泵壳体中；
    轴向轴，所述轴向轴从所述电马达延伸；以及
    叶轮，所述叶轮安装在所述轴向轴上以随其旋转。
  8. 根据权利要求7所述的洗碗设备，其中，所述叶轮为在所述叶片的上游的 循环叶轮，并且其中，所述洗碗设备进一步包括：
    排水叶轮，所述排水叶轮沿着轴向方向在所述循环叶轮下方安装在所述轴向轴上。
  9. 根据权利要求7所述的洗碗设备，其中，所述叶轮封装在所述腔室泵壳体中，并且沿着轴向方向在所述电马达下方。
  10. 根据权利要求1所述的洗碗设备，进一步包括：
    喷洒组件，所述喷洒组件在所述腔室泵壳体的下游安装在所述桶中，以接收来自所述腔室泵壳体的流体流。
  11. 一种洗碗设备，包括：
    桶，所述桶限定清洗腔室；
    集液槽，所述集液槽定位在所述桶的底部部分处，所述集液槽限定了轴向方向，
    腔室泵壳体，所述腔室泵壳体安装在所述集液槽的至少一部分中，所述腔室泵壳体限定有内壁表面；
    叶片，所述叶片定位在所述腔室泵壳体中，所述叶片从内径向端部延伸至外径向端部，所述叶片限定有翼片轮廓；以及
    螺纹接合接合部，所述螺纹接合接合部形成在所述内壁表面与所述叶片之间，所述螺纹接合接合部包括，
    在所述外径向端部处从所述叶片径向延伸的第一径向螺纹轮廓，所述第一径向螺纹轮廓定边界在所述翼片轮廓的径向截面中，以及
    形成在所述内壁表面上的第二径向螺纹轮廓，所述第二径向螺纹轮廓与所述第一径向螺纹轮廓互补。
  12. 根据权利要求11所述的洗碗设备，其中，所述腔室泵壳体包括下部壳体 和上部壳体，所述上部壳体能够选择性地与所述下部壳体分开，其中，所述叶片包括附接至所述下部壳体的下部分段以及附接至所述上部壳体的上部分段，其中，所述螺纹接合接合部为形成在所述内壁表面与所述下部分段之间的第一螺纹接合接合部，并且其中，所述洗碗设备进一步包括形成在所述内壁表面与所述上部分段之间的第二螺纹接合接合部，所述第二螺纹接合接合部包括：
    在所述外径向端部处从所述上部分段径向延伸的第一径向螺纹轮廓，所述第一径向轮廓定边界在由所述上部分段限定的翼片轮廓的径向截面中，以及
    在所述第一接合接合部的第二径向螺纹轮廓上方形成在内壁表面上的第二径向螺纹轮廓，所述第二接合接合部的第二径向螺纹轮廓与所述第二接合接合部的第一径向螺纹轮廓互补。
  13. 根据权利要求12所述的洗碗设备，其中，所述第一接合接合部在所述第一接合接合部的第一径向螺纹轮廓和第二径向螺纹轮廓处限定了第一螺纹节距，其中，所述第二接合接合部在第二接合接合部的第一径向螺纹轮廓和第二径向螺纹轮廓处限定了第二螺纹节距，并且其中，所述第二螺纹节距不等于所述第一螺纹节距。
  14. 根据权利要求13所述的洗碗设备，其中，第二螺纹节距大于所述第一螺纹节距。
  15. 根据权利要求12所述的洗碗设备，其中，所述下部分段在所述下部分段的顶部表面处限定了轴向凹槽，其中，所述上部分段在所述上部分段的底部表面处限定了轴向槽口，并且其中，所述上部分段的轴向槽口选择性地配合至所述下部分段的轴向凹槽。
  16. 根据权利要求12所述的洗碗设备，其中，下部泵壳体包括与所述内表面相反地延伸的下部径向唇部，其中，所述上部泵壳体包括与所述内表面相反地 延伸的上部径向唇部，其中，所述上部径向唇部在所述上部径向唇部的底部表面处限定了轴向凹槽，其中，所述下部分段在所述下部分段的顶部表面处限定了轴向槽口，并且其中，所述下部径向唇部的轴向槽口选择性地配合至所述上部径向唇部的轴向凹槽。
  17. 根据权利要求11所述的洗碗设备，进一步包括：
    电马达，所述电马达相对于所述叶片径向向内地封装在所述腔室泵壳体中；
    轴向轴，所述轴向轴从所述电马达延伸；以及
    叶轮，所述叶轮安装在所述轴向轴上以随其旋转。
  18. 根据权利要求17所述的洗碗设备，其中，所述叶轮为在所述叶片的上游的循环叶轮，并且其中，所述洗碗设备进一步包括：
    排水叶轮，所述排水叶轮沿着轴向方向在所述循环叶轮下方安装在所述轴向轴上。
  19. 根据权利要求17所述的洗碗设备，其中，所述叶轮封装在所述腔室泵壳体中，并且沿着轴向方向在所述电马达下方。
  20. 根据权利要求11所述的洗碗设备，进一步包括：
    喷洒组件，所述喷洒组件在所述腔室泵壳体的下游安装在所述桶中，以接收来自所述腔室泵壳体的流体流。
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