Diverter assembly for a washing machine appliance

Abstract

A washing machine appliance includes a wash tub positioned within a cabinet and defining a wash chamber, a wash basket rotatably mounted within the wash tub for receiving a load of clothes, a dispensing assembly mounted within the cabinet for selectively adding wash fluid into the wash tub, the dispensing assembly defining a plurality of dispenser inlets, and a diverter assembly for selectively directing the wash fluid through one or more of the plurality of dispenser inlets. The diverter assembly includes a diverter inlet, a diverter disk mounted adjacent the diverter inlet and defining a plurality of flow tubes, the diverter disk being rotatable to aligning one of the plurality of flow tubes with the diverter inlet and couple the diverter inlet to one of the plurality of dispenser inlets, and a drive motor mechanically coupled to the diverter disk for selectively rotating the diverter disk.

Description

FIELD OF THE INVENTION

[0001] The present subject matter relates generally to washing machine appliances, or more specifically, to dispensing assemblies of washing machine appliances.BACKGROUND OF THE INVENTION

[0002] Washing machine appliances generally include a tub for containing water or wash fluid, e.g., water and detergent, bleach, and / or other wash additives. A basket is rotatably mounted within the tub and defines a wash chamber for receipt of articles for washing. During normal operation of such washing machine appliances, the wash fluid is directed into the tub and onto articles within the wash chamber of the basket. The basket or an agitation element can rotate at various speeds to agitate articles within the wash chamber, to wring wash fluid from articles within the wash chamber, etc. During a spin or drain cycle, a drain pump assembly may operate to discharge water from within sump.

[0003] Certain conventional washing machine appliances include dispensing assemblies that are configured to dispense water, wash fluid, and / or other additives into the wash chamber at various stages of the operating cycle to facilitate the cleaning of articles located therein. These dispensing assemblies may include a detergent drawer that includes multiple reservoirs for holding different additives and a water supply that selectively supplies water into the one or more reservoirs to flush the additives into the wash tub at desired times in the wash cycle.

[0004] However, conventional dispensing assemblies utilize a large number of components to regulate the fluid flow, e.g., such as multiple water valves, hoses, clamps, etc. For example, conventional dispensing assemblies use a separate cold water valve for each detergent reservoir, plus at least one additional hot water valve. These components are costly, increase assembly time and complexity, and provide additional failure points where leaks or malfunctions may occur.

[0005] Accordingly, a washing machine appliance having a dispensing assembly with a minimal number of components would be desirable. More specifically, a dispensing assembly that reliably supplies wash additives with minimal cost and complexity would be particularly beneficial.BRIEF DESCRIPTION OF THE INVENTION

[0006] Aspects and advantages of the invention will be set forth in part in the following description, or may be apparent from the description, or may be learned through practice of the invention.

[0007] In one exemplary embodiment, a washing machine appliance is provided including a wash tub positioned within a cabinet and defining a wash chamber, a wash basket rotatably mounted within the wash tub for receiving a load of clothes, a dispensing assembly mounted within the cabinet for selectively adding wash fluid into the wash tub, the dispensing assembly defining a plurality of dispenser inlets, and a diverter assembly for selectively directing the wash fluid through one or more of the plurality of dispenser inlets. The diverter assembly includes a diverter inlet, a diverter disk mounted adjacent the diverter inlet and defining a plurality of flow tubes, the diverter disk being rotatable to aligning one of the plurality of flow tubes with the diverter inlet and couple the diverter inlet to one of the plurality of dispenser inlets, and a drive motor mechanically coupled to the diverter disk for selectively rotating the diverter disk.

[0008] In another exemplary embodiment, a diverter assembly for an appliance is provided. The appliance includes a dispensing assembly defining a plurality of dispenser inlets. The diverter assembly includes a diverter inlet, a diverter disk mounted adjacent the diverter inlet and defining a plurality of flow tubes, the diverter disk being rotatable to aligning one of the plurality of flow tubes with the diverter inlet and couple the diverter inlet to one of the plurality of dispenser inlets, and a drive motor mechanically coupled to the diverter disk for selectively rotating the diverter disk.

[0009] These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.BRIEF DESCRIPTION OF THE DRAWINGS

[0010] A full and enabling disclosure of the present invention, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures.

[0011] FIG. 1 provides a perspective view of a washing machine appliance according to an example embodiment of the present subject matter.

[0012] FIG. 2 provides a front view of the example washing machine appliance of FIG. 1 with a door in the open position according to an example embodiment of the present subject matter.

[0013] FIG. 3 provides a side cross-sectional view of the example washing machine appliance of FIG. 1 according to an example embodiment of the present subject matter.

[0014] FIG. 4 provides a rear perspective view of the example washing machine appliance of FIG. 1 with a top panel removed for clarity according to an example embodiment of the present subject matter.

[0015] FIG. 5 provides a rear perspective view of a dispensing assembly of the example washing machine appliance of FIG. 1 according to an example embodiment of the present subject matter.

[0016] FIG. 6 provides a top view of the example dispensing assembly of FIG. 5 with a top cover removed for clarity according to an example embodiment of the present subject matter.

[0017] FIG. 7 provides a perspective view of a diverter assembly of the example dispensing assembly of FIG. 5 according to an example embodiment of the present subject matter.

[0018] FIG. 8 provides a front perspective view of the example diverter assembly of FIG. 7 according to an example embodiment of the present subject matter.

[0019] FIG. 9 provides a rear perspective view of the example diverter assembly of FIG. 7 according to an example embodiment of the present subject matter.

[0020] FIG. 10 provides a cross-sectional view of the example diverter assembly of FIG. 7 according to an example embodiment of the present subject matter.

[0021] Repeat use of reference characters in the present specification and drawings is intended to represent the same or analogous features or elements of the present invention.DETAILED DESCRIPTION OF THE INVENTION

[0022] Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0023] As used herein, the terms “first,”“second,” and “third” may be used interchangeably to distinguish one component from another and are not intended to signify location or importance of the individual components. The terms “includes” and “including” are intended to be inclusive in a manner similar to the term “comprising.” Similarly, the term “or” is generally intended to be inclusive (i.e., “A or B” is intended to mean “A or B or both”). The term “at least one of” in the context of, e.g., “at least one of A, B, and C” refers to only A, only B, only C, or any combination of A, B, and C. In addition, here and throughout the specification and claims, range limitations may be combined and / or interchanged. Such ranges are identified and include all the sub-ranges contained therein unless context or language indicates otherwise. For example, all ranges disclosed herein are inclusive of the endpoints, and the endpoints are independently combinable with each other. The singular forms “a,”“an,” and “the” include plural references unless the context clearly dictates otherwise.

[0024] Approximating language, as used herein throughout the specification and claims, may be applied to modify any quantitative representation that could permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term or terms, such as “generally,”“about,”“approximately,” and “substantially,” are not to be limited to the precise value specified. In at least some instances, the approximating language may correspond to the precision of an instrument for measuring the value, or the precision of the methods or machines for constructing or manufacturing the components and / or systems. For example, the approximating language may refer to being within a 10 percent margin, i.e., including values within ten percent greater or less than the stated value. In this regard, for example, when used in the context of an angle or direction, such terms include within ten degrees greater or less than the stated angle or direction, e.g., “generally vertical” includes forming an angle of up to ten degrees in any direction, e.g., clockwise or counterclockwise, with the vertical direction V.

[0025] The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” In addition, references to “an embodiment” or “one embodiment” does not necessarily refer to the same embodiment, although it may. Any implementation described herein as “exemplary” or “an embodiment” is not necessarily to be construed as preferred or advantageous over other implementations. Moreover, each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0026] As explained herein, aspects of the present subject matter are generally directed to a rotary diverter assembly for a front load washing machine. The diverter assembly may direct or divert inlet water into one of many downstream channels within a shower plate. Different geometries of flow tubes may be presented to the inlet water by rotating a wheel in which the flow tubes are molded. In this manner, the incoming water may be redirected to various channels within the shower plate. The wheel may be rotated by a synchronous motor, with feedback of wheel position provided by a mechanical switch.

[0027] Referring now to the figures, FIG. 1 is a perspective view of an exemplary horizontal axis washing machine appliance 100, FIG. 2 is a front view of washing machine appliance 100, and FIG. 3 is a side cross-sectional view of washing machine appliance 100. As illustrated, washing machine appliance 100 generally defines a vertical direction V, a lateral direction L, and a transverse direction T, each of which is mutually perpendicular, such that an orthogonal coordinate system is generally defined. Washing machine appliance 100 includes a cabinet 102 that extends between a top 104 and a bottom 106 along the vertical direction V, between a left side 108 and a right side 110 along the lateral direction, and between a front 112 and a rear 114 along the transverse direction T.

[0028] Referring to FIGS. 2 and 3, a wash basket 120 is rotatably mounted within cabinet 102 such that it is rotatable about an axis of rotation A. A motor 122, e.g., such as a pancake motor, is in mechanical communication with wash basket 120 to selectively rotate wash basket 120 (e.g., during an agitation or a rinse cycle of washing machine appliance 100). Wash basket 120 is received within a wash tub 124 and defines a wash chamber 126 that is configured for receipt of articles for washing. The wash tub 124 holds wash and rinse fluids for agitation in wash basket 120 within wash tub 124. As used herein, “wash fluid” may refer to water, detergent, fabric softener, bleach, or any other suitable wash additive or combination thereof. Indeed, for simplicity of discussion, these terms may all be used interchangeably herein without limiting the present subject matter to any particular “wash fluid.”

[0029] Wash basket 120 may define one or more agitator features that extend into wash chamber 126 to assist in agitation and cleaning articles disposed within wash chamber 126 during operation of washing machine appliance 100. For example, as illustrated in FIG. 3, a plurality of ribs 128 extends from basket 120 into wash chamber 126. In this manner, for example, ribs 128 may lift articles disposed in wash basket 120 during rotation of wash basket 120.

[0030] Referring generally to FIGS. 1 through 3, cabinet 102 also includes a front panel 130 which defines a chamber opening 132 that permits user access to wash basket 120 of wash tub 124. More specifically, washing machine appliance 100 includes a door 134 that is positioned over chamber opening 132 and is rotatably mounted to front panel 130. In this manner, door 134 permits selective access to chamber opening 132 by being movable between an open position (FIG. 2) facilitating access to a wash tub 124 and a closed position (FIG. 1) prohibiting access to wash tub 124.

[0031] A window 136 in door 134 permits viewing of wash basket 120 when door 134 is in the closed position, e.g., during operation of washing machine appliance 100. Door 134 also includes a handle (not labeled) that, e.g., a user may pull when opening and closing door 134. Further, although door 134 is illustrated as mounted to front panel 130, it should be appreciated that door 134 may be mounted to another side of cabinet 102 or any other suitable support according to alternative embodiments.

[0032] Referring again to FIG. 3, wash basket 120 also defines a plurality of perforations 140 in order to facilitate fluid communication between an interior of basket 120 and wash tub 124. A sump 142 is defined by wash tub 124 at a bottom of wash tub 124 along the vertical direction V. Thus, sump 142 is configured for receipt of and generally collects wash fluid during operation of washing machine appliance 100. For example, during operation of washing machine appliance 100, wash fluid may be urged by gravity from basket 120 to sump 142 through plurality of perforations 140.

[0033] A drain pump assembly 144 is located beneath wash tub 124 and is in fluid communication with sump 142 for periodically discharging soiled wash fluid from washing machine appliance 100. Drain pump assembly 144 may generally include a drain pump 146 which is in fluid communication with sump 142 and with an external drain 148 through a drain hose 150. During a drain cycle, drain pump 146 urges a flow of wash fluid from sump 142, through drain hose 150, and to external drain 148. More specifically, drain pump 146 includes a motor (not shown) which is energized during a drain cycle such that drain pump 146 draws wash fluid from sump 142 and urges it through drain hose 150 to external drain 148.

[0034] A spout (such as supply conduit 218) may be configured for directing a flow of fluid into wash tub 124. For example, supply conduit 218 may be in fluid communication with a water supply 154 (FIG. 2) in order to direct fluid (e.g., clean water or wash fluid) into wash tub 124. Supply conduit 218 may also be in fluid communication with the sump 142. For example, pump assembly 144 may direct wash fluid disposed in sump 142 to supply conduit 218 in order to circulate wash fluid in wash tub 124.

[0035] As illustrated in FIG. 3, a detergent drawer 156 is slidably mounted within front panel 130. Detergent drawer 156 receives a wash additive (e.g., detergent, fabric softener, bleach, or any other suitable liquid or powder) and directs the fluid additive to wash tub 124 during operation of washing machine appliance 100. According to the illustrated embodiment, detergent drawer 156 may also be fluidly coupled to supply conduit 218 to facilitate the complete and accurate dispensing of wash additive.

[0036] In addition, a water supply valve 158 may provide a flow of water from a water supply source (such as a municipal water supply 154) into detergent dispenser 156 and into wash tub 124. In this manner, water supply valve 158 may generally be operable to supply water into detergent dispenser 156 to generate a wash fluid, e.g., for use in a wash cycle, or a flow of fresh water, e.g., for a rinse cycle. It should be appreciated that water supply valve 158 may be positioned at any other suitable location within cabinet 102. In addition, although water supply valve 158 is described herein as regulating the flow of “wash fluid,” it should be appreciated that this term includes, water, detergent, other additives, or some mixture thereof.

[0037] A control panel 160 including a plurality of input selectors 162 is coupled to front panel 130. Control panel 160 and input selectors 162 collectively form a user interface input for operator selection of machine cycles and features. For example, in one embodiment, a display 164 indicates selected features, a countdown timer, and / or other items of interest to machine users.

[0038] Operation of washing machine appliance 100 is controlled by a controller or processing device 166 (FIG. 1) that is operatively coupled to control panel 160 for user manipulation to select washing machine cycles and features. In response to user manipulation of control panel 160, controller 166 operates the various components of washing machine appliance 100 to execute selected machine cycles and features.

[0039] Controller 166 may include a memory and microprocessor, such as a general or special purpose microprocessor operable to execute programming instructions or micro-control code associated with a cleaning cycle. The memory may represent random access memory such as DRAM, or read only memory such as ROM or FLASH. In one embodiment, the processor executes programming instructions stored in memory. The memory may be a separate component from the processor or may be included onboard within the processor. Alternatively, controller 166 may be constructed without using a microprocessor, e.g., using a combination of discrete analog and / or digital logic circuitry (such as switches, amplifiers, integrators, comparators, flip-flops, AND gates, and the like) to perform control functionality instead of relying upon software. Control panel 160 and other components of washing machine appliance 100 may be in communication with controller 166 via one or more signal lines or shared communication busses.

[0040] During operation of washing machine appliance 100, laundry items are loaded into wash basket 120 through chamber opening 132, and washing operation is initiated through operator manipulation of input selectors 162. Wash tub 124 is filled with water, detergent, and / or other fluid additives, e.g., via supply conduit 218 and or detergent drawer 156. One or more valves (e.g., water supply valve 158) can be controlled by washing machine appliance 100 to provide for filling wash basket 120 to the appropriate level for the amount of articles being washed and / or rinsed. By way of example for a wash mode, once wash basket 120 is properly filled with fluid, the contents of wash basket 120 can be agitated (e.g., with ribs 128) for washing of laundry items in wash basket 120.

[0041] After the agitation phase of the wash cycle is completed, wash tub 124 can be drained. Laundry articles can then be rinsed by again adding fluid to wash tub 124, depending on the particulars of the cleaning cycle selected by a user. Ribs 128 may again provide agitation within wash basket 120. One or more spin cycles may also be used. In particular, a spin cycle may be applied after the wash cycle and / or after the rinse cycle in order to wring wash fluid from the articles being washed. During a final spin cycle, basket 120 is rotated at relatively high speeds and drain pump assembly 144 may discharge wash fluid from sump 142. After articles disposed in wash basket 120 are cleaned, washed, and / or rinsed, the user can remove the articles from wash basket 120, e.g., by opening door 134 and reaching into wash basket 120 through chamber opening 132.

[0042] While described in the context of a specific embodiment of horizontal axis washing machine appliance 100, using the teachings disclosed herein it will be understood that horizontal axis washing machine appliance 100 is provided by way of example only. Other washing machine appliances having different configurations, different appearances, and / or different features may also be utilized with the present subject matter as well, e.g., vertical axis washing machine appliances.

[0043] Referring still to FIG. 1, a schematic diagram of an external communication system 170 will be described according to an exemplary embodiment of the present subject matter. In general, external communication system 170 is configured for permitting interaction, data transfer, and other communications between washing machine appliance 100 and one or more external devices. For example, this communication may be used to provide and receive operating parameters, user instructions or notifications, performance characteristics, user preferences, or any other suitable information for improved performance of washing machine appliance 100. In addition, it should be appreciated that external communication system 170 may be used to transfer data or other information to improve performance of one or more external devices or appliances and / or improve user interaction with such devices.

[0044] For example, external communication system 170 permits controller 166 of washing machine appliance 100 to communicate with a separate device external to washing machine appliance 100, referred to generally herein as an external device 172. As described in more detail below, these communications may be facilitated using a wired or wireless connection, such as via a network 174. In general, external device 172 may be any suitable device separate from washing machine appliance 100 that is configured to provide and / or receive communications, information, data, or commands from a user. In this regard, external device 172 may be, for example, a personal phone, a smartphone, a tablet, a laptop or personal computer, a wearable device, a smart home system, or another mobile or remote device.

[0045] In addition, a remote server 176 may be in communication with washing machine appliance 100 and / or external device 172 through network 174. In this regard, for example, remote server 176 may be a cloud-based server 176, and is thus located at a distant location, such as in a separate state, country, etc. According to an exemplary embodiment, external device 172 may communicate with a remote server 176 over network 174, such as the Internet, to transmit / receive data or information, provide user inputs, receive user notifications or instructions, interact with or control washing machine appliance 100, etc. In addition, external device 172 and remote server 176 may communicate with washing machine appliance 100 to communicate similar information.

[0046] In general, communication between washing machine appliance 100, external device 172, remote server 176, and / or other user devices or appliances may be carried using any type of wired or wireless connection and using any suitable type of communication network, non-limiting examples of which are provided below. For example, external device 172 may be in direct or indirect communication with washing machine appliance 100 through any suitable wired or wireless communication connections or interfaces, such as network 174. For example, network 174 may include one or more of a local area network (LAN), a wide area network (WAN), a personal area network (PAN), the Internet, a cellular network, any other suitable short-or long-range wireless networks, etc. In addition, communications may be transmitted using any suitable communications devices or protocols, such as via Wi-Fi®, Bluetooth®, Zigbee®, wireless radio, laser, infrared, Ethernet type devices and interfaces, etc. In addition, such communication may use a variety of communication protocols (e.g., TCP / IP, HTTP, SMTP, FTP), encodings or formats (e.g., HTML, XML), and / or protection schemes (e.g., VPN, secure HTTP, SSL).

[0047] External communication system 170 is described herein according to an exemplary embodiment of the present subject matter. However, it should be appreciated that the exemplary functions and configurations of external communication system 170 provided herein are used only as examples to facilitate description of aspects of the present subject matter. System configurations may vary, other communication devices may be used to communicate directly or indirectly with one or more associated appliances, other communication protocols and steps may be implemented, etc. These variations and modifications are contemplated as within the scope of the present subject matter.

[0048] Referring now generally to FIGS. 3 through 5, a fluid circulation assembly 200 that may be used with washing machine appliance 100 will be described according to example embodiments of the present subject matter. In general, fluid circulation assembly 200 may generally be configured for urging a flow of wash fluid (e.g., identified generally by reference numeral 202 in FIG. 3) throughout washing machine appliance 100. For example, the flow of wash fluid 202 may be water, detergent, additives, or some mixture thereof. According to example embodiments, fluid circulation assembly 200 may be configured to circulate the flow of wash fluid 202 within washing machine appliance 100 to facilitate cleaning of a load of articles or may be configured to discharge the flow of wash fluid 202 to an external drain 148. Although fluid circulation assembly 200 will be described below according to an example embodiment, it should be appreciated that variations and modifications may be made while remaining within the scope of the present subject matter.

[0049] According to the illustrated embodiment, fluid circulation assembly 200 may generally include a dispensing assembly 210 that is configured to receive and distribute the flow of wash fluid 202. For example, according to the illustrated embodiment, dispensing assembly 210 may generally include a dispenser manifold or a dispenser housing 212 that is positioned within or recessed within cabinet 102, e.g., at a top corner of front panel 130. According to the illustrated embodiment, dispenser housing 212 may be an open reservoir positioned at a bottom of dispensing assembly 210 and may include angled collecting wall 214 for directing fluids within dispenser housing 212 toward a discharge port 216. As shown for example in FIGS. 3 and 5, discharge port 216 may be fluidly coupled to a supply conduit 218 that is fluidly coupled to wash tub 124. In this manner, the flow of wash fluid 202 that is passed into dispenser housing 212 may be directed under the force of gravity into wash tub 124, e.g., to facilitate operation of washing machine appliance 100.

[0050] Referring now also to FIGS. 6 and 7, dispensing assembly 210 may further include a shower plate 220 and a top cover 222 that is positioned over the shower plate 220 to define a water supply reservoir 224. Dispensing assembly 210 may further include a plurality of dispenser inlets 226 that are positioned at a rear of shower plate 220 for receiving flows of hot and / or cold water into water supply reservoir 224, e.g., from water supply 154. In general, shower plate 220 may include a plurality of water supply apertures or perforations 228 for discharging the freshwater from water supply reservoir 224 down into dispenser housing 212. In this manner, fresh water and / or additives may be showered or flooded within dispenser housing 212 where they may be mixed prior to passing into wash tub 124 through supply conduit 218 (e.g., as flow of wash fluid 202).

[0051] In addition, as described briefly above, dispensing assembly 210 may include a detergent drawer 156 that is slidably mounted within dispenser housing 212 for receiving one or more wash additives or detergents. In this regard, a user may slide detergent drawer 156 out from front 112 of cabinet 102 for supplying wash additives needed for a wash cycle. Detergent drawer 156 may then slide back into dispensing assembly 210 where water supply 154 may selectively dispense fresh water to flush out one or more compartments of detergent drawer 156 and to create the flow of wash fluid 202.

[0052] As explained briefly above, detergent drawer 156 may define one or more detergent chambers (not shown) that are generally configured for storing one or more wash additives for use during a washing cycle, e.g., such as a pre-wash chamber, a bleach chamber, a fabric softener chamber, main wash chamber, etc. It should be appreciated that according to alternative embodiments, detergent drawer 156 may define other chambers for receiving other wash additives while remaining within the scope of the present subject matter.

[0053] Shower plate 220 may generally be positioned over detergent drawer 156 when detergent drawer 156 is inserted into dispenser housing 212. In addition, shower plate 220 may generally divide water supply reservoir 224 into a plurality of separate reservoirs 230 associated with one or more of the detergent chambers. Each reservoir 230 may be fluidly coupled to one or more of dispenser inlets 226, e.g., through flow directing walls 232. In this regard, by flooding or injecting water into one of the plurality of reservoirs 230 defined by shower plate 220, the water may pass through water supply apertures 228 into a respective detergent chamber. The water may then flush the detergent within the detergent chamber into dispenser housing 212 where it may be discharged into wash tub 124 through supply conduit 218 as a flow of wash fluid 202. It should be appreciated that the number of chambers, reservoirs, and the additives they store may vary while remaining within the scope of the present subject matter.

[0054] Referring now specifically to FIGS. 4 through 10, dispensing assembly 200 may further include a diverter assembly 240 for selectively directing water (e.g., indicated by reference numeral 242 in FIGS. 7 and 10) through one or more of the plurality of dispenser inlets 226 to facilitate mixing with one or more detergents and the generation of wash fluid 202 that may be passed into wash tub 124. Although an example diverter assembly 240 is described and illustrated below, it should be appreciated that variations and modifications may be made while remaining within the scope of the present subject matter.

[0055] In general, diverter assembly 240 may include a diverter mounting bracket or a diverter housing 244 that is attached to a rear wall 246 of dispenser housing 212. Specifically, diverter housing 244 may be mounted to dispenser housing 212 using one or more mechanical fasteners and may be generally configured for supporting various components of diverter assembly 240. In this regard, for example, diverter assembly 240 may include a diverter disk 250 the is rotatably mounted to dispenser housing 212. As will be described in more detail below, diverter disk 250 may be selectively rotated to direct the flow of water 242 into one or more of the dispenser inlets 226.

[0056] According to the illustrated embodiment, diverter housing 244 may define a diverter inlet 252 that is fluidly coupled to water supply 154, e.g., via a water supply conduit 254. In this manner, water supply valve 158 may be configured for supplying hot water, cold water, or a mixture of hot and cold water directly into diverter inlet 252 of diverter assembly 240. According to an example embodiment, an aperture 256 may be defined in rear wall 246 of dispenser housing 212 and diverter disk 250 may be positioned through aperture 256, e.g., for directing the flow of water directly into water supply reservoir 224. In addition, diverter assembly 240 may include a seal 258, such as a large, rubber O-ring, that is positioned around diverter disk 250 between diverter housing 244 and dispenser housing 212. In this manner, the flow of water 242 supplied through diverter assembly 240 may be retained within dispensing assembly 210.

[0057] Referring now specifically to FIGS. 7, 8, and 10, diverter disk 250 may define a plurality of flow tubes 260, each of which may be fluidly coupled to diverter inlet 252, e.g., based on the angular positioned of diverter disk 250. Specifically, diverter disk 250 may be rotated to align one or more of flow tubes 260 with diverter inlet 252. Each flow tube 260 may be configured to direct the flow of water 242 into a respective dispenser inlet 226, such that the rotational position of diverter disk 250 may dictate which water reservoir 240 is flooded and what additive is added to the flow of wash fluid 202.

[0058] According to example embodiments, flow tubes 260 may have any suitable size, geometry, and orientation for directing the flow of water 242 toward the desired dispenser inlet 226 for a given situation. For example, at least one of flow tubes 260 may be a straight or linear tube, e.g., as illustrated in the figures. In addition, as illustrated, some or all of flow tubes 260 may be oriented or extend along a direction that is not parallel to an axis of rotation of diverter disk 250. However, according to still other embodiments, at least one flow tube 260 may be curved, non-linear, or may have any other suitable profile. In addition, it should be appreciated that flow tubes 260 may define a single flow path or multiple flow paths oriented in different directions.

[0059] It should be appreciated that various features of diverter assembly 240 may be formed from any suitably rigid material. For example, according to exemplary embodiments, diverter housing 244 and diverter disk 250 may be formed by injection molding, e.g., using a suitable plastic material, such as injection molding grade Polybutylene Terephthalate (PBT), Nylon 6, high impact polystyrene (HIPS), acrylonitrile butadiene styrene (ABS), or any other suitable blend of polymers. Alternatively, according to the exemplary embodiment, these components may be compression molded, e.g., using sheet molding compound (SMC) thermoset plastic or other thermoplastics. According to still other embodiments, portions of diverter assembly 240 may be formed from any other suitable rigid material.

[0060] Referring now specifically to FIGS. 5, 6, and 10, diverter assembly 240 may further include a drive motor 270 that is mechanically coupled to diverter disk 250 for selectively rotating diverter disk 250 between various positions to facilitate the desired redirection of the flow of water 242. For example, according to the illustrated embodiment, diverter disk 250 has four flow tubes 260, each of which is configured to supply the flow of water 242 into a respective one of the dispenser inlets 226 when diverter disk 250 aligns that flow tube 260 with diverter inlet 252, e.g., the top position of diverter disk 250 as illustrated in the figures. Accordingly, drive motor 270 may be configured to index diverter disk 250 between four water supply positions. Although a single diverter inlet 252 and four flow tubes 260 are illustrated, it should be appreciated that these numbers may vary while remaining within the scope of the present subject matter.

[0061] As used herein, “drive motor” may refer to any suitable drive motor and / or transmission assembly for rotating diverter disk 250. For example, drive motor 270 may include a synchronous motor, a brushless DC electric motor, a stepper motor, or any other suitable type or configuration of motor. For example, drive motor 270 may include an AC motor, an induction motor, a permanent magnet synchronous motor, or any other suitable type of AC motor. In addition, drive motor 270 may include any suitable transmission assemblies, clutch mechanisms, or other components. According to an exemplary embodiment, drive motor 270 may be operably coupled to a controller (e.g., controller 166), which is programmed to rotate diverter disk 250 as described herein.

[0062] Referring now specifically to FIG. 9, diverter assembly 240 may include a limit switch 272 that is configured for detecting a position of diverter disk 250 and thereby providing controller 166 with knowledge of which flow tube 260 is being supplied with the flow of water 242 through diverter assembly 240. According to an example embodiment, a cam 274 may be mechanically coupled to drive motor 270 and diverter disk 250. Cam 274 may define a recess 276 that engages limit switch 272 at a home position. Controller 166 may be operably coupled to limit switch 272 to obtain knowledge as to the precise position of diverter disk 250. It should be appreciated that other configurations of limit switch 272 and triggering mechanisms are possible and within the scope of the present subject matter. For example, recess 276 may be replaced by a bump or protrusion, other sensing mechanisms may be used, etc.

[0063] This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.

Examples

Embodiment Construction

[0022]Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0023]As used herein, the terms “first,”“second,” and “third” may be used interchangeably to distinguish one component from another and are not intended to signify location or importance of the individual components. The terms “includes” and “including” are...

FIELD OF THE INVENTION

[0001] The present subject matter relates generally to washing machine appliances, or more specifically, to dispensing assemblies of washing machine appliances.BACKGROUND OF THE INVENTION

[0002] Washing machine appliances generally include a tub for containing water or wash fluid, e.g., water and detergent, bleach, and / or other wash additives. A basket is rotatably mounted within the tub and defines a wash chamber for receipt of articles for washing. During normal operation of such washing machine appliances, the wash fluid is directed into the tub and onto articles within the wash chamber of the basket. The basket or an agitation element can rotate at various speeds to agitate articles within the wash chamber, to wring wash fluid from articles within the wash chamber, etc. During a spin or drain cycle, a drain pump assembly may operate to discharge water from within sump.

[0003] Certain conventional washing machine appliances include dispensing assemblies that are configured to dispense water, wash fluid, and / or other additives into the wash chamber at various stages of the operating cycle to facilitate the cleaning of articles located therein. These dispensing assemblies may include a detergent drawer that includes multiple reservoirs for holding different additives and a water supply that selectively supplies water into the one or more reservoirs to flush the additives into the wash tub at desired times in the wash cycle.

[0004] However, conventional dispensing assemblies utilize a large number of components to regulate the fluid flow, e.g., such as multiple water valves, hoses, clamps, etc. For example, conventional dispensing assemblies use a separate cold water valve for each detergent reservoir, plus at least one additional hot water valve. These components are costly, increase assembly time and complexity, and provide additional failure points where leaks or malfunctions may occur.

[0005] Accordingly, a washing machine appliance having a dispensing assembly with a minimal number of components would be desirable. More specifically, a dispensing assembly that reliably supplies wash additives with minimal cost and complexity would be particularly beneficial.BRIEF DESCRIPTION OF THE INVENTION

[0006] Aspects and advantages of the invention will be set forth in part in the following description, or may be apparent from the description, or may be learned through practice of the invention.

[0007] In one exemplary embodiment, a washing machine appliance is provided including a wash tub positioned within a cabinet and defining a wash chamber, a wash basket rotatably mounted within the wash tub for receiving a load of clothes, a dispensing assembly mounted within the cabinet for selectively adding wash fluid into the wash tub, the dispensing assembly defining a plurality of dispenser inlets, and a diverter assembly for selectively directing the wash fluid through one or more of the plurality of dispenser inlets. The diverter assembly includes a diverter inlet, a diverter disk mounted adjacent the diverter inlet and defining a plurality of flow tubes, the diverter disk being rotatable to aligning one of the plurality of flow tubes with the diverter inlet and couple the diverter inlet to one of the plurality of dispenser inlets, and a drive motor mechanically coupled to the diverter disk for selectively rotating the diverter disk.

[0008] In another exemplary embodiment, a diverter assembly for an appliance is provided. The appliance includes a dispensing assembly defining a plurality of dispenser inlets. The diverter assembly includes a diverter inlet, a diverter disk mounted adjacent the diverter inlet and defining a plurality of flow tubes, the diverter disk being rotatable to aligning one of the plurality of flow tubes with the diverter inlet and couple the diverter inlet to one of the plurality of dispenser inlets, and a drive motor mechanically coupled to the diverter disk for selectively rotating the diverter disk.

[0009] These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.BRIEF DESCRIPTION OF THE DRAWINGS

[0010] A full and enabling disclosure of the present invention, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures.

[0011] FIG. 1 provides a perspective view of a washing machine appliance according to an example embodiment of the present subject matter.

[0012] FIG. 2 provides a front view of the example washing machine appliance of FIG. 1 with a door in the open position according to an example embodiment of the present subject matter.

[0013] FIG. 3 provides a side cross-sectional view of the example washing machine appliance of FIG. 1 according to an example embodiment of the present subject matter.

[0014] FIG. 4 provides a rear perspective view of the example washing machine appliance of FIG. 1 with a top panel removed for clarity according to an example embodiment of the present subject matter.

[0015] FIG. 5 provides a rear perspective view of a dispensing assembly of the example washing machine appliance of FIG. 1 according to an example embodiment of the present subject matter.

[0016] FIG. 6 provides a top view of the example dispensing assembly of FIG. 5 with a top cover removed for clarity according to an example embodiment of the present subject matter.

[0017] FIG. 7 provides a perspective view of a diverter assembly of the example dispensing assembly of FIG. 5 according to an example embodiment of the present subject matter.

[0018] FIG. 8 provides a front perspective view of the example diverter assembly of FIG. 7 according to an example embodiment of the present subject matter.

[0019] FIG. 9 provides a rear perspective view of the example diverter assembly of FIG. 7 according to an example embodiment of the present subject matter.

[0020] FIG. 10 provides a cross-sectional view of the example diverter assembly of FIG. 7 according to an example embodiment of the present subject matter.

[0021] Repeat use of reference characters in the present specification and drawings is intended to represent the same or analogous features or elements of the present invention.DETAILED DESCRIPTION OF THE INVENTION

[0022] Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0023] As used herein, the terms “first,”“second,” and “third” may be used interchangeably to distinguish one component from another and are not intended to signify location or importance of the individual components. The terms “includes” and “including” are intended to be inclusive in a manner similar to the term “comprising.” Similarly, the term “or” is generally intended to be inclusive (i.e., “A or B” is intended to mean “A or B or both”). The term “at least one of” in the context of, e.g., “at least one of A, B, and C” refers to only A, only B, only C, or any combination of A, B, and C. In addition, here and throughout the specification and claims, range limitations may be combined and / or interchanged. Such ranges are identified and include all the sub-ranges contained therein unless context or language indicates otherwise. For example, all ranges disclosed herein are inclusive of the endpoints, and the endpoints are independently combinable with each other. The singular forms “a,”“an,” and “the” include plural references unless the context clearly dictates otherwise.

[0024] Approximating language, as used herein throughout the specification and claims, may be applied to modify any quantitative representation that could permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term or terms, such as “generally,”“about,”“approximately,” and “substantially,” are not to be limited to the precise value specified. In at least some instances, the approximating language may correspond to the precision of an instrument for measuring the value, or the precision of the methods or machines for constructing or manufacturing the components and / or systems. For example, the approximating language may refer to being within a 10 percent margin, i.e., including values within ten percent greater or less than the stated value. In this regard, for example, when used in the context of an angle or direction, such terms include within ten degrees greater or less than the stated angle or direction, e.g., “generally vertical” includes forming an angle of up to ten degrees in any direction, e.g., clockwise or counterclockwise, with the vertical direction V.

[0025] The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” In addition, references to “an embodiment” or “one embodiment” does not necessarily refer to the same embodiment, although it may. Any implementation described herein as “exemplary” or “an embodiment” is not necessarily to be construed as preferred or advantageous over other implementations. Moreover, each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0026] As explained herein, aspects of the present subject matter are generally directed to a rotary diverter assembly for a front load washing machine. The diverter assembly may direct or divert inlet water into one of many downstream channels within a shower plate. Different geometries of flow tubes may be presented to the inlet water by rotating a wheel in which the flow tubes are molded. In this manner, the incoming water may be redirected to various channels within the shower plate. The wheel may be rotated by a synchronous motor, with feedback of wheel position provided by a mechanical switch.

[0027] Referring now to the figures, FIG. 1 is a perspective view of an exemplary horizontal axis washing machine appliance 100, FIG. 2 is a front view of washing machine appliance 100, and FIG. 3 is a side cross-sectional view of washing machine appliance 100. As illustrated, washing machine appliance 100 generally defines a vertical direction V, a lateral direction L, and a transverse direction T, each of which is mutually perpendicular, such that an orthogonal coordinate system is generally defined. Washing machine appliance 100 includes a cabinet 102 that extends between a top 104 and a bottom 106 along the vertical direction V, between a left side 108 and a right side 110 along the lateral direction, and between a front 112 and a rear 114 along the transverse direction T.

[0028] Referring to FIGS. 2 and 3, a wash basket 120 is rotatably mounted within cabinet 102 such that it is rotatable about an axis of rotation A. A motor 122, e.g., such as a pancake motor, is in mechanical communication with wash basket 120 to selectively rotate wash basket 120 (e.g., during an agitation or a rinse cycle of washing machine appliance 100). Wash basket 120 is received within a wash tub 124 and defines a wash chamber 126 that is configured for receipt of articles for washing. The wash tub 124 holds wash and rinse fluids for agitation in wash basket 120 within wash tub 124. As used herein, “wash fluid” may refer to water, detergent, fabric softener, bleach, or any other suitable wash additive or combination thereof. Indeed, for simplicity of discussion, these terms may all be used interchangeably herein without limiting the present subject matter to any particular “wash fluid.”

[0029] Wash basket 120 may define one or more agitator features that extend into wash chamber 126 to assist in agitation and cleaning articles disposed within wash chamber 126 during operation of washing machine appliance 100. For example, as illustrated in FIG. 3, a plurality of ribs 128 extends from basket 120 into wash chamber 126. In this manner, for example, ribs 128 may lift articles disposed in wash basket 120 during rotation of wash basket 120.

[0030] Referring generally to FIGS. 1 through 3, cabinet 102 also includes a front panel 130 which defines a chamber opening 132 that permits user access to wash basket 120 of wash tub 124. More specifically, washing machine appliance 100 includes a door 134 that is positioned over chamber opening 132 and is rotatably mounted to front panel 130. In this manner, door 134 permits selective access to chamber opening 132 by being movable between an open position (FIG. 2) facilitating access to a wash tub 124 and a closed position (FIG. 1) prohibiting access to wash tub 124.

[0031] A window 136 in door 134 permits viewing of wash basket 120 when door 134 is in the closed position, e.g., during operation of washing machine appliance 100. Door 134 also includes a handle (not labeled) that, e.g., a user may pull when opening and closing door 134. Further, although door 134 is illustrated as mounted to front panel 130, it should be appreciated that door 134 may be mounted to another side of cabinet 102 or any other suitable support according to alternative embodiments.

[0032] Referring again to FIG. 3, wash basket 120 also defines a plurality of perforations 140 in order to facilitate fluid communication between an interior of basket 120 and wash tub 124. A sump 142 is defined by wash tub 124 at a bottom of wash tub 124 along the vertical direction V. Thus, sump 142 is configured for receipt of and generally collects wash fluid during operation of washing machine appliance 100. For example, during operation of washing machine appliance 100, wash fluid may be urged by gravity from basket 120 to sump 142 through plurality of perforations 140.

[0033] A drain pump assembly 144 is located beneath wash tub 124 and is in fluid communication with sump 142 for periodically discharging soiled wash fluid from washing machine appliance 100. Drain pump assembly 144 may generally include a drain pump 146 which is in fluid communication with sump 142 and with an external drain 148 through a drain hose 150. During a drain cycle, drain pump 146 urges a flow of wash fluid from sump 142, through drain hose 150, and to external drain 148. More specifically, drain pump 146 includes a motor (not shown) which is energized during a drain cycle such that drain pump 146 draws wash fluid from sump 142 and urges it through drain hose 150 to external drain 148.

[0034] A spout (such as supply conduit 218) may be configured for directing a flow of fluid into wash tub 124. For example, supply conduit 218 may be in fluid communication with a water supply 154 (FIG. 2) in order to direct fluid (e.g., clean water or wash fluid) into wash tub 124. Supply conduit 218 may also be in fluid communication with the sump 142. For example, pump assembly 144 may direct wash fluid disposed in sump 142 to supply conduit 218 in order to circulate wash fluid in wash tub 124.

[0035] As illustrated in FIG. 3, a detergent drawer 156 is slidably mounted within front panel 130. Detergent drawer 156 receives a wash additive (e.g., detergent, fabric softener, bleach, or any other suitable liquid or powder) and directs the fluid additive to wash tub 124 during operation of washing machine appliance 100. According to the illustrated embodiment, detergent drawer 156 may also be fluidly coupled to supply conduit 218 to facilitate the complete and accurate dispensing of wash additive.

[0036] In addition, a water supply valve 158 may provide a flow of water from a water supply source (such as a municipal water supply 154) into detergent dispenser 156 and into wash tub 124. In this manner, water supply valve 158 may generally be operable to supply water into detergent dispenser 156 to generate a wash fluid, e.g., for use in a wash cycle, or a flow of fresh water, e.g., for a rinse cycle. It should be appreciated that water supply valve 158 may be positioned at any other suitable location within cabinet 102. In addition, although water supply valve 158 is described herein as regulating the flow of “wash fluid,” it should be appreciated that this term includes, water, detergent, other additives, or some mixture thereof.

[0037] A control panel 160 including a plurality of input selectors 162 is coupled to front panel 130. Control panel 160 and input selectors 162 collectively form a user interface input for operator selection of machine cycles and features. For example, in one embodiment, a display 164 indicates selected features, a countdown timer, and / or other items of interest to machine users.

[0038] Operation of washing machine appliance 100 is controlled by a controller or processing device 166 (FIG. 1) that is operatively coupled to control panel 160 for user manipulation to select washing machine cycles and features. In response to user manipulation of control panel 160, controller 166 operates the various components of washing machine appliance 100 to execute selected machine cycles and features.

[0039] Controller 166 may include a memory and microprocessor, such as a general or special purpose microprocessor operable to execute programming instructions or micro-control code associated with a cleaning cycle. The memory may represent random access memory such as DRAM, or read only memory such as ROM or FLASH. In one embodiment, the processor executes programming instructions stored in memory. The memory may be a separate component from the processor or may be included onboard within the processor. Alternatively, controller 166 may be constructed without using a microprocessor, e.g., using a combination of discrete analog and / or digital logic circuitry (such as switches, amplifiers, integrators, comparators, flip-flops, AND gates, and the like) to perform control functionality instead of relying upon software. Control panel 160 and other components of washing machine appliance 100 may be in communication with controller 166 via one or more signal lines or shared communication busses.

[0040] During operation of washing machine appliance 100, laundry items are loaded into wash basket 120 through chamber opening 132, and washing operation is initiated through operator manipulation of input selectors 162. Wash tub 124 is filled with water, detergent, and / or other fluid additives, e.g., via supply conduit 218 and or detergent drawer 156. One or more valves (e.g., water supply valve 158) can be controlled by washing machine appliance 100 to provide for filling wash basket 120 to the appropriate level for the amount of articles being washed and / or rinsed. By way of example for a wash mode, once wash basket 120 is properly filled with fluid, the contents of wash basket 120 can be agitated (e.g., with ribs 128) for washing of laundry items in wash basket 120.

[0041] After the agitation phase of the wash cycle is completed, wash tub 124 can be drained. Laundry articles can then be rinsed by again adding fluid to wash tub 124, depending on the particulars of the cleaning cycle selected by a user. Ribs 128 may again provide agitation within wash basket 120. One or more spin cycles may also be used. In particular, a spin cycle may be applied after the wash cycle and / or after the rinse cycle in order to wring wash fluid from the articles being washed. During a final spin cycle, basket 120 is rotated at relatively high speeds and drain pump assembly 144 may discharge wash fluid from sump 142. After articles disposed in wash basket 120 are cleaned, washed, and / or rinsed, the user can remove the articles from wash basket 120, e.g., by opening door 134 and reaching into wash basket 120 through chamber opening 132.

[0042] While described in the context of a specific embodiment of horizontal axis washing machine appliance 100, using the teachings disclosed herein it will be understood that horizontal axis washing machine appliance 100 is provided by way of example only. Other washing machine appliances having different configurations, different appearances, and / or different features may also be utilized with the present subject matter as well, e.g., vertical axis washing machine appliances.

[0043] Referring still to FIG. 1, a schematic diagram of an external communication system 170 will be described according to an exemplary embodiment of the present subject matter. In general, external communication system 170 is configured for permitting interaction, data transfer, and other communications between washing machine appliance 100 and one or more external devices. For example, this communication may be used to provide and receive operating parameters, user instructions or notifications, performance characteristics, user preferences, or any other suitable information for improved performance of washing machine appliance 100. In addition, it should be appreciated that external communication system 170 may be used to transfer data or other information to improve performance of one or more external devices or appliances and / or improve user interaction with such devices.

[0044] For example, external communication system 170 permits controller 166 of washing machine appliance 100 to communicate with a separate device external to washing machine appliance 100, referred to generally herein as an external device 172. As described in more detail below, these communications may be facilitated using a wired or wireless connection, such as via a network 174. In general, external device 172 may be any suitable device separate from washing machine appliance 100 that is configured to provide and / or receive communications, information, data, or commands from a user. In this regard, external device 172 may be, for example, a personal phone, a smartphone, a tablet, a laptop or personal computer, a wearable device, a smart home system, or another mobile or remote device.

[0045] In addition, a remote server 176 may be in communication with washing machine appliance 100 and / or external device 172 through network 174. In this regard, for example, remote server 176 may be a cloud-based server 176, and is thus located at a distant location, such as in a separate state, country, etc. According to an exemplary embodiment, external device 172 may communicate with a remote server 176 over network 174, such as the Internet, to transmit / receive data or information, provide user inputs, receive user notifications or instructions, interact with or control washing machine appliance 100, etc. In addition, external device 172 and remote server 176 may communicate with washing machine appliance 100 to communicate similar information.

[0046] In general, communication between washing machine appliance 100, external device 172, remote server 176, and / or other user devices or appliances may be carried using any type of wired or wireless connection and using any suitable type of communication network, non-limiting examples of which are provided below. For example, external device 172 may be in direct or indirect communication with washing machine appliance 100 through any suitable wired or wireless communication connections or interfaces, such as network 174. For example, network 174 may include one or more of a local area network (LAN), a wide area network (WAN), a personal area network (PAN), the Internet, a cellular network, any other suitable short-or long-range wireless networks, etc. In addition, communications may be transmitted using any suitable communications devices or protocols, such as via Wi-Fi®, Bluetooth®, Zigbee®, wireless radio, laser, infrared, Ethernet type devices and interfaces, etc. In addition, such communication may use a variety of communication protocols (e.g., TCP / IP, HTTP, SMTP, FTP), encodings or formats (e.g., HTML, XML), and / or protection schemes (e.g., VPN, secure HTTP, SSL).

[0047] External communication system 170 is described herein according to an exemplary embodiment of the present subject matter. However, it should be appreciated that the exemplary functions and configurations of external communication system 170 provided herein are used only as examples to facilitate description of aspects of the present subject matter. System configurations may vary, other communication devices may be used to communicate directly or indirectly with one or more associated appliances, other communication protocols and steps may be implemented, etc. These variations and modifications are contemplated as within the scope of the present subject matter.

[0048] Referring now generally to FIGS. 3 through 5, a fluid circulation assembly 200 that may be used with washing machine appliance 100 will be described according to example embodiments of the present subject matter. In general, fluid circulation assembly 200 may generally be configured for urging a flow of wash fluid (e.g., identified generally by reference numeral 202 in FIG. 3) throughout washing machine appliance 100. For example, the flow of wash fluid 202 may be water, detergent, additives, or some mixture thereof. According to example embodiments, fluid circulation assembly 200 may be configured to circulate the flow of wash fluid 202 within washing machine appliance 100 to facilitate cleaning of a load of articles or may be configured to discharge the flow of wash fluid 202 to an external drain 148. Although fluid circulation assembly 200 will be described below according to an example embodiment, it should be appreciated that variations and modifications may be made while remaining within the scope of the present subject matter.

[0049] According to the illustrated embodiment, fluid circulation assembly 200 may generally include a dispensing assembly 210 that is configured to receive and distribute the flow of wash fluid 202. For example, according to the illustrated embodiment, dispensing assembly 210 may generally include a dispenser manifold or a dispenser housing 212 that is positioned within or recessed within cabinet 102, e.g., at a top corner of front panel 130. According to the illustrated embodiment, dispenser housing 212 may be an open reservoir positioned at a bottom of dispensing assembly 210 and may include angled collecting wall 214 for directing fluids within dispenser housing 212 toward a discharge port 216. As shown for example in FIGS. 3 and 5, discharge port 216 may be fluidly coupled to a supply conduit 218 that is fluidly coupled to wash tub 124. In this manner, the flow of wash fluid 202 that is passed into dispenser housing 212 may be directed under the force of gravity into wash tub 124, e.g., to facilitate operation of washing machine appliance 100.

[0050] Referring now also to FIGS. 6 and 7, dispensing assembly 210 may further include a shower plate 220 and a top cover 222 that is positioned over the shower plate 220 to define a water supply reservoir 224. Dispensing assembly 210 may further include a plurality of dispenser inlets 226 that are positioned at a rear of shower plate 220 for receiving flows of hot and / or cold water into water supply reservoir 224, e.g., from water supply 154. In general, shower plate 220 may include a plurality of water supply apertures or perforations 228 for discharging the freshwater from water supply reservoir 224 down into dispenser housing 212. In this manner, fresh water and / or additives may be showered or flooded within dispenser housing 212 where they may be mixed prior to passing into wash tub 124 through supply conduit 218 (e.g., as flow of wash fluid 202).

[0051] In addition, as described briefly above, dispensing assembly 210 may include a detergent drawer 156 that is slidably mounted within dispenser housing 212 for receiving one or more wash additives or detergents. In this regard, a user may slide detergent drawer 156 out from front 112 of cabinet 102 for supplying wash additives needed for a wash cycle. Detergent drawer 156 may then slide back into dispensing assembly 210 where water supply 154 may selectively dispense fresh water to flush out one or more compartments of detergent drawer 156 and to create the flow of wash fluid 202.

[0052] As explained briefly above, detergent drawer 156 may define one or more detergent chambers (not shown) that are generally configured for storing one or more wash additives for use during a washing cycle, e.g., such as a pre-wash chamber, a bleach chamber, a fabric softener chamber, main wash chamber, etc. It should be appreciated that according to alternative embodiments, detergent drawer 156 may define other chambers for receiving other wash additives while remaining within the scope of the present subject matter.

[0053] Shower plate 220 may generally be positioned over detergent drawer 156 when detergent drawer 156 is inserted into dispenser housing 212. In addition, shower plate 220 may generally divide water supply reservoir 224 into a plurality of separate reservoirs 230 associated with one or more of the detergent chambers. Each reservoir 230 may be fluidly coupled to one or more of dispenser inlets 226, e.g., through flow directing walls 232. In this regard, by flooding or injecting water into one of the plurality of reservoirs 230 defined by shower plate 220, the water may pass through water supply apertures 228 into a respective detergent chamber. The water may then flush the detergent within the detergent chamber into dispenser housing 212 where it may be discharged into wash tub 124 through supply conduit 218 as a flow of wash fluid 202. It should be appreciated that the number of chambers, reservoirs, and the additives they store may vary while remaining within the scope of the present subject matter.

[0054] Referring now specifically to FIGS. 4 through 10, dispensing assembly 200 may further include a diverter assembly 240 for selectively directing water (e.g., indicated by reference numeral 242 in FIGS. 7 and 10) through one or more of the plurality of dispenser inlets 226 to facilitate mixing with one or more detergents and the generation of wash fluid 202 that may be passed into wash tub 124. Although an example diverter assembly 240 is described and illustrated below, it should be appreciated that variations and modifications may be made while remaining within the scope of the present subject matter.

[0055] In general, diverter assembly 240 may include a diverter mounting bracket or a diverter housing 244 that is attached to a rear wall 246 of dispenser housing 212. Specifically, diverter housing 244 may be mounted to dispenser housing 212 using one or more mechanical fasteners and may be generally configured for supporting various components of diverter assembly 240. In this regard, for example, diverter assembly 240 may include a diverter disk 250 the is rotatably mounted to dispenser housing 212. As will be described in more detail below, diverter disk 250 may be selectively rotated to direct the flow of water 242 into one or more of the dispenser inlets 226.

[0056] According to the illustrated embodiment, diverter housing 244 may define a diverter inlet 252 that is fluidly coupled to water supply 154, e.g., via a water supply conduit 254. In this manner, water supply valve 158 may be configured for supplying hot water, cold water, or a mixture of hot and cold water directly into diverter inlet 252 of diverter assembly 240. According to an example embodiment, an aperture 256 may be defined in rear wall 246 of dispenser housing 212 and diverter disk 250 may be positioned through aperture 256, e.g., for directing the flow of water directly into water supply reservoir 224. In addition, diverter assembly 240 may include a seal 258, such as a large, rubber O-ring, that is positioned around diverter disk 250 between diverter housing 244 and dispenser housing 212. In this manner, the flow of water 242 supplied through diverter assembly 240 may be retained within dispensing assembly 210.

[0057] Referring now specifically to FIGS. 7, 8, and 10, diverter disk 250 may define a plurality of flow tubes 260, each of which may be fluidly coupled to diverter inlet 252, e.g., based on the angular positioned of diverter disk 250. Specifically, diverter disk 250 may be rotated to align one or more of flow tubes 260 with diverter inlet 252. Each flow tube 260 may be configured to direct the flow of water 242 into a respective dispenser inlet 226, such that the rotational position of diverter disk 250 may dictate which water reservoir 240 is flooded and what additive is added to the flow of wash fluid 202.

[0058] According to example embodiments, flow tubes 260 may have any suitable size, geometry, and orientation for directing the flow of water 242 toward the desired dispenser inlet 226 for a given situation. For example, at least one of flow tubes 260 may be a straight or linear tube, e.g., as illustrated in the figures. In addition, as illustrated, some or all of flow tubes 260 may be oriented or extend along a direction that is not parallel to an axis of rotation of diverter disk 250. However, according to still other embodiments, at least one flow tube 260 may be curved, non-linear, or may have any other suitable profile. In addition, it should be appreciated that flow tubes 260 may define a single flow path or multiple flow paths oriented in different directions.

[0059] It should be appreciated that various features of diverter assembly 240 may be formed from any suitably rigid material. For example, according to exemplary embodiments, diverter housing 244 and diverter disk 250 may be formed by injection molding, e.g., using a suitable plastic material, such as injection molding grade Polybutylene Terephthalate (PBT), Nylon 6, high impact polystyrene (HIPS), acrylonitrile butadiene styrene (ABS), or any other suitable blend of polymers. Alternatively, according to the exemplary embodiment, these components may be compression molded, e.g., using sheet molding compound (SMC) thermoset plastic or other thermoplastics. According to still other embodiments, portions of diverter assembly 240 may be formed from any other suitable rigid material.

[0060] Referring now specifically to FIGS. 5, 6, and 10, diverter assembly 240 may further include a drive motor 270 that is mechanically coupled to diverter disk 250 for selectively rotating diverter disk 250 between various positions to facilitate the desired redirection of the flow of water 242. For example, according to the illustrated embodiment, diverter disk 250 has four flow tubes 260, each of which is configured to supply the flow of water 242 into a respective one of the dispenser inlets 226 when diverter disk 250 aligns that flow tube 260 with diverter inlet 252, e.g., the top position of diverter disk 250 as illustrated in the figures. Accordingly, drive motor 270 may be configured to index diverter disk 250 between four water supply positions. Although a single diverter inlet 252 and four flow tubes 260 are illustrated, it should be appreciated that these numbers may vary while remaining within the scope of the present subject matter.

[0061] As used herein, “drive motor” may refer to any suitable drive motor and / or transmission assembly for rotating diverter disk 250. For example, drive motor 270 may include a synchronous motor, a brushless DC electric motor, a stepper motor, or any other suitable type or configuration of motor. For example, drive motor 270 may include an AC motor, an induction motor, a permanent magnet synchronous motor, or any other suitable type of AC motor. In addition, drive motor 270 may include any suitable transmission assemblies, clutch mechanisms, or other components. According to an exemplary embodiment, drive motor 270 may be operably coupled to a controller (e.g., controller 166), which is programmed to rotate diverter disk 250 as described herein.

[0062] Referring now specifically to FIG. 9, diverter assembly 240 may include a limit switch 272 that is configured for detecting a position of diverter disk 250 and thereby providing controller 166 with knowledge of which flow tube 260 is being supplied with the flow of water 242 through diverter assembly 240. According to an example embodiment, a cam 274 may be mechanically coupled to drive motor 270 and diverter disk 250. Cam 274 may define a recess 276 that engages limit switch 272 at a home position. Controller 166 may be operably coupled to limit switch 272 to obtain knowledge as to the precise position of diverter disk 250. It should be appreciated that other configurations of limit switch 272 and triggering mechanisms are possible and within the scope of the present subject matter. For example, recess 276 may be replaced by a bump or protrusion, other sensing mechanisms may be used, etc.

[0063] This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.

Examples

Embodiment Construction

[0022]Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0023]As used herein, the terms “first,”“second,” and “third” may be used interchangeably to distinguish one component from another and are not intended to signify location or importance of the individual components. The terms “includes” and “including” are...

Claims

1. A washing machine appliance comprising:a wash tub positioned within a cabinet and defining a wash chamber;a wash basket rotatably mounted within the wash tub for receiving a load of clothes;a dispensing assembly mounted within the cabinet for selectively adding wash fluid into the wash tub, the dispensing assembly defining a plurality of dispenser inlets; anda diverter assembly for selectively directing the wash fluid through one or more of the plurality of dispenser inlets, the diverter assembly comprising:a diverter inlet;a diverter disk mounted adjacent the diverter inlet and defining a plurality of flow tubes, the diverter disk being rotatable to aligning one of the plurality of flow tubes with the diverter inlet and couple the diverter inlet to one of the plurality of dispenser inlets; anda drive motor mechanically coupled to the diverter disk for selectively rotating the diverter disk.

2. The washing machine appliance of claim 1, wherein at least one of the plurality of flow tubes is straight.

3. The washing machine appliance of claim 2, wherein at least one of the plurality of flow tubes extends along a direction that is not parallel to an axis of rotation of the drive motor.

4. The washing machine appliance of claim 1, wherein at least one of the plurality of flow tubes is curved or non-linear.

5. The washing machine appliance of claim 1, wherein the plurality of flow tubes is four flow tubes and the drive motor is configured to rotate between four positions.

6. The washing machine appliance of claim 1, wherein the dispensing assembly comprises a dispenser housing, an aperture is defined in a rear wall of the dispenser housing, and the diverter disk is positioned through the aperture.

7. The washing machine appliance of claim 6, wherein the diverter assembly further comprises:a seal positioned around the diverter disk between a diverter housing and the dispenser housing.

8. The washing machine appliance of claim 1, wherein the diverter disk is injection molded.

9. The washing machine appliance of claim 1, wherein the drive motor is a synchronous motor.

10. The washing machine appliance of claim 1, wherein the diverter assembly further comprises:a limit switch for detecting a position of the diverter disk.

11. The washing machine appliance of claim 10, wherein the diverter assembly comprises:a cam that rotates with the diverter disk, wherein the cam defines a protrusion or a recess configured to engage the limit switch at a home position.

12. The washing machine appliance of claim 1, wherein a hot supply, a cold supply, or a mixed supply is fluidly coupled to the diverter inlet.

13. The washing machine appliance of claim 1, wherein the washing machine appliance is a horizontal axis washing machine or a front load washing machine.

14. A diverter assembly for an appliance, the appliance comprising a dispensing assembly defining a plurality of dispenser inlets, the diverter assembly comprising:a diverter inlet;a diverter disk mounted adjacent the diverter inlet and defining a plurality of flow tubes, the diverter disk being rotatable to aligning one of the plurality of flow tubes with the diverter inlet and couple the diverter inlet to one of the plurality of dispenser inlets; anda drive motor mechanically coupled to the diverter disk for selectively rotating the diverter disk.

15. The diverter assembly of claim 14, wherein at least one of the plurality of flow tubes is straight, and wherein at least one of the plurality of flow tubes extends along a direction that is not parallel to an axis of rotation of the drive motor.

16. The diverter assembly of claim 14, wherein at least one of the plurality of flow tubes is curved or non-linear.

17. The diverter assembly of claim 14, wherein the plurality of flow tubes is four flow tubes and the drive motor is configured to rotate between four positions.

18. The diverter assembly of claim 14, wherein the dispensing assembly comprises a dispenser housing, an aperture is defined in a rear wall of the dispenser housing, and the diverter disk is positioned through the aperture.

19. The diverter assembly of claim 18, wherein the diverter assembly further comprises:a seal positioned around the diverter disk between a diverter housing and the dispenser housing.

20. The diverter assembly of claim 14, wherein the diverter assembly further comprises:a limit switch for detecting a position of the diverter disk; anda cam that rotates with the diverter disk, wherein the cam defines a protrusion or a recess configured to engage the limit switch at a home position.

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