Patent Application
20240426542
The present disclosure relates to an appliance such as a refrigerator.
Refrigerator appliances may include systems that require a water supply. Such systems may be configured to produce ice cubes or to deliver water to a user via a dispensing device.
A refrigerator includes a cabinet, water lines, a water filter, a receptacle, a port, a cover, and a plate. The cabinet defines an internal cavity configured to receive foodstuffs. The water lines are configured to deliver water from a source to a dispenser or an ice maker. The water filter is configured to purify the water. The water filter has a handle extending therefrom. The receptacle is disposed within the internal cavity. The receptacle is configured to receive the water filter. The port is movably secured the receptacle. The port is configured to engage the water filter to establish fluid communication between the water filter and the water lines. The port is configured to transition the water filter between an activated position for operation and a deactivated position for replacement. The cover is movably secured to the receptacle. The cover is configured to transition to a closed position to cover the water filter within the receptacle. The cover is configured to transition to an open position to provide access to the water filter within the receptacle. The plate is disposed within the receptacle. The plate defines a cam profile. The cam profile is configured to interfere with the handle in response to a partial connection between the water filter and the port such that the water filter cannot transition to the activated position and such that the cover cannot transition to the closed position. The cam profile is configured to provide clearance for the handle in response to a full connection between the water filter and the port such that the water filter can transition to the activated position and such that the cover can transition to the closed position.
A filter assembly for a refrigerator includes a filter housing, a receptacle, a port, a cover, and a cam plate. The filter housing has a protrusion extending therefrom. The receptacle is configured to receive the filter housing. The port is configured to engage an opposing end of the filter housing relative to the protrusion. The port is configured to move to transition the filter housing to an activated position. The port is configured to move to transition the filter housing to a deactivated position. The cover is configured to transition to a closed position to cover the filter housing within the receptacle. The cover is configured to transition to an open position to provide access to the filter housing within the receptacle. The cam plate is disposed within the receptacle. The cam plate is configured to interfere with the protrusion in response to a partial connection between the filter housing and the port such that the filter housing cannot transition to the activated position and such that the cover cannot transition to the closed position. The cam plate is configured to provide clearance for the protrusion in response to a full connection between the filter housing and the port such that the filter housing can transition to the activated position and such that the cover can transition to the closed position.
A filter assembly for a refrigerator includes a filter, a port, and a cam. The filter has a protrusion extending therefrom. The port is configured to engage the filter. The port is configured to move to transition the filter to an activated position. The port is configured to move to transition the filter to a deactivated position. The cam is configured to interfere with the protrusion in response to a partial connection between the filter and the port to prevent the filter from transitioning to the activated position. The cam is configured to provide clearance for the protrusion in response to a full connection between the filter and the port to facilitate the filter transitioning to the activated position.
Embodiments of the present disclosure are described herein. It is to be understood, however, that the disclosed embodiments are merely examples and other embodiments may take various and alternative forms. The figures are not necessarily to scale; some features could be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the embodiments. As those of ordinary skill in the art will understand, various features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to produce embodiments that are not explicitly illustrated or described. The combinations of features illustrated provide representative embodiments for typical applications. Various combinations and modifications of the features consistent with the teachings of this disclosure, however, could be desired for particular applications or implementations.
Referring to
It is generally known that the freezer compartment 14 is typically kept at a temperature below the freezing point of water, and the fresh food compartment 12 is typically kept at a temperature above the freezing point of water and generally below a temperature of from about 35° F. to about 50° F., more typically below about 38° F. As shown in
Significantly, due at least in part to the access door 46 and the design and size of the ice maker 20, the access door 46 has a peripheral edge liner that extends outward from the surface of the access door 46 and defines a dike wall. The dike walls extend from at least the two vertical sides, more typically all four sides and define a door bin receiving volume along the surface of the access door 46. The access door 46 is selectively operable between an open position, in which the ice maker 20 and the ice storage container or bin 54 are accessible, and a closed position, in which the ice maker 20 and the ice storage bin 54 are not accessible. The access door 46 may also include door bins 48 that are able to hold smaller food items. The door bins 48 may also be located on or removably mounted to the access door 46 and at least partially spaced within the door bin receiving volume of the access door 46. While not typically the case, the ice maker 20 may also be located exterior the fresh food compartment 12, such as on top of the refrigerator cabinet, in a mullion between the fresh food compartment 12 and the freezer compartment 14, in a mullion between two fresh food compartments 12, or anywhere else an automatic, motor driven ice maker 20 may be located.
The refrigerator 10 may also have a duct or duct system (not shown) with an inlet in the freezer compartment 14 and an outlet in the fresh food compartment 12. The duct may be situated such that the length of the duct necessary to direct air from the freezer compartment 14 to the fresh food compartment 12 is minimized, reducing the amount of heat gained in the travel between the inlet and the outlet. The duct outlet located in fresh food compartment 12 may be positioned at a location near the ice maker 20. The refrigerator 10 may also have one or more fans, but typically has a single fan (not shown) located in the freezer compartment 14 to force air from the freezer compartment 14 to the fresh food compartment 12. The colder air from the freezer compartment 14 is needed in the ice maker 20 because air below the freezing point of water is needed to freeze the water that enters the ice maker 20 to freeze into ice cubes. In the embodiment shown, the ice maker 20 is located in the fresh food compartment 12, which typically holds air above the freezing point of water.
In various embodiments, where the ice maker 20 is located in a compartment or location other than in the freezer compartment 12, a fan is needed to force the air to the ice maker 20. In other embodiments, the fan or fans may be located either in the freezer compartment 14, the fresh food compartment 12, or in another location where the fan is able force air through the duct. The ice maker 20 is often positioned within a door of the refrigerator 10 to allow for delivery of ice through the door 16 in a dispensing area 17 on the exterior of the refrigerator 10, typically at a location on the exterior below the level of the ice storage bin 54 to allow gravity to force the ice down an ice dispensing chute into the refrigerator door 16. The chute extends from the bin to the dispensing area 17 and ice is typically pushed into the chute using an electrical power-driven auger. Ice is dispensed from the ice storage bin 54 to the user of the refrigerator 10.
The refrigerator 10 may also have a water inlet that is fastened to and in fluid communication with a household water supply of potable water. Typically, the household water supply connects to a municipal water source or a well. The water inlet may be fluidly engaged with one or more of a water filter, a water reservoir, and a refrigerator water supply line. The refrigerator water supply line may include one or more nozzles and one or more valves. The refrigerator water supply line may supply water to one or more water outlets; typically one outlet for water is in the dispensing area and another to an ice tray. The refrigerator 10 may also have a control board or controller that sends electrical signals to the one or more valves when prompted by a user that water is desired or if an ice making cycle is required.
The ice maker 20 may include an on/off switch 60. The on/off switch 60 may be located on the ice maker 20 in a location that is accessible to a user without removing the ice maker 20 from the door 16 or the refrigerator 10. The ice bin wall 58 may be configured such that when the ice storage bin 54 is placed in the door 16, the on/off switch 60 is inaccessible to the user, and when the ice storage bin 54 is removed from the door 16, the on/off switch 60 is accessible to a user. The ice storage bin wall 58 may be made of a clear plastic material such as a copolyester so that a user can see the on/off switch 60 even while inaccessible when the ice bin 54 is in place. However, the front portion of the ice bin wall 58 typically extends to cover the on/off switch 60 when in the installed position to prevent inadvertent actuation of the on/off switch 60. The front portion of the ice bin wall 58 also typically extends upward to form a lip that extends around at least a portion of the ice maker 20 to further retain ice.
The ice maker 20, the door 16 (or more specifically, the portions of the door 16 that define the ice maker receiving space 52), and the ice storage bin 54 may collectively be referred to as an ice maker assembly. The door 16 (or more specifically, the portions of the door 16 that define the ice maker receiving space 52) and the ice storage bin 54 may collectively be referred to as an ice bin assembly.
Referring now to
The water system 126 includes a number of components for conditioning water to be discharged through the dispenser 120. In particular, the water system may have a heating assembly 130, a cold water reservoir 132, and include ice maker 20. The heating assembly 130 includes a flow-through heating element 131 and a thermal fuse 129 configured to cut power to the flow-through heating element 131 when the flow-through heating element 131 reaches a predetermined temperature. The heating assembly 130 may be positioned between the water filter port 122 and the dispenser 120 along a hot water line 135. The cold water reservoir 132 accumulates and cools water in the refrigerator 10 prior to the water being discharged through the dispenser 120 or supplied to the ice maker 20. The cold water reservoir 132 is positioned between the water filter port 122 and the dispenser 120 along a cold water line 137. The ice maker 20 receives cold water from the cold water reservoir 132 and generates ice that is discharged through the dispenser 120 via an ice line 139.
One exemplary flow-through heating element 131 is a Ferro Flow Through Heater (FTH). The flow-through heating element 131 may positioned in the refrigerator door 16 below the dispenser 120 and outside a refrigerator insulation layer. The flow-through heating element 131 is illustratively oriented in a flat orientation so that water flows in a substantially horizontal direction through the flow-through heating element 131. In some embodiments, the flow-through heating element 131 may be a thermoblock element, a microwave element, or another suitable type of heating element. Additionally, the heating element may be positioned in another location in the door 16 or the refrigerator 10 and may be placed in a number of orientations relative thereto. In alternative embodiments of the present disclosure, the flow-through heating element 131 may be replaced or augmented by a batch heating system including a heating element and a hot water reservoir.
All the water (liquid or ice) dispensed by the refrigerator 10 may pass through the water filter port 122. The water system 126 may include a main valve 136 coupled to the water source 127 and the water filter port 122 may be coupled to the main valve 136 via a water inlet line 141. The hot water line 135 and the cold water line 137 may extend from the water filter port 122 directing water through the rest of the water system 126. The main valve 136 may be manually opened or closed to selectively allow water from the water source 127 to enter the water system 126 of the refrigerator 10.
The water filter port 122 may be configured to receive a water filter cartridge 140 or the descaling cartridge 124. The water filter cartridge 140 is illustratively consumable and discarded after use. The water filter cartridge 140 includes an inlet 142, an outlet 144, and a filter media 146 as is known in the art. In other embodiments, the water filter cartridge 140, or portions thereof, may be reusable. The descaling cartridge 124 is illustratively consumable and is charged to supply enough descaling agent 154 for one descaling cycle. In other embodiments, the descaling cartridge 124 may be refillable and/or reusable.
The descaling cartridge 124 may include an inlet 148, an outlet 150, and a descaling packet 152 containing descaling agent 154. The inlet 148 may be open to the water lines of the refrigerator 10. The descaling packet 152 may be coupled to the outlet 150 and may be squeezed by water flowing into the descaling cartridge 124 so that the descaling agent 154 is dispensed through the outlet 150 into the water lines. Water ceases to flow into the descaling cartridge 124 when the descaling cartridge 124 is full of water and the descaling packet 152 is emptied. The descaling agent 154 may then be advanced through the water system 126 and reacts with the scale built up in the water system 126 so that the scale can be flushed out of the water system 126 when the reacted descaling agent 154 is discharged through the dispenser 120. In the illustrative embodiment, the descaling agent 154 is a solution with about an 8 percent concentration of acetic acid. In other embodiments, other organic acids including but not limited to sulfonic acids or carboxylic acids, in particular, lactic acid, acetic acid, formic acid, oxalic acid, uric acid solutions may be used alone or mixtures thereof. It is also possible to use inorganic acids such as phosphoric acid, hydrochloric acid or sulfamic acid solutions. Mixtures of various inorganic and organic acids could also conceivably be used as descaling agents in accordance with embodiments of the present invention.
In other embodiments, the inlet 148 and the outlet 150 may both be open to the water lines of the refrigerator 10. In such embodiments, the descaling packet 152 may be open inside the descaling cartridge 124 or opened when water enters the descaling cartridge 124 so that water flowing through the descaling cartridge is mixed with descaling agent. The water mixing with the descaling agent 154 dilutes and carries the descaling agent through the water lines of the refrigerator 10. In some such embodiments, the descaling agent 154 may be a liquid descaling agent or a solid agent.
The water system 126 further includes a number of electronically controlled valves that can be operated to supply hot or cold water to the dispenser 120 or to supply cold water to the ice maker 20. Specifically, the water system may include a hot water valve 162, a cold water valve 164, a cold water dispenser valve 166, and an ice maker valve 168. The hot water valve 162 may be coupled between the water filter port 122 and the dispenser 120 along the hot water line 135. The cold water valve 164 may be coupled between the water filter port 122 and the dispenser 120 along the cold water line 137. The cold water dispenser valve 166 may be coupled between the cold water reservoir 132 and the dispenser 120 along the cold water line 137. The ice maker valve 168 may be coupled between the cold water reservoir 132 and the ice maker 20 along the cold water line 137.
In operation, the hot water valve 162 can be opened to advance water from the water source 127 through the heating assembly 130 to the dispenser 120. The cold water valve 164 can be opened to advance water from the water source 127 to the cold water reservoir 132. The cold water dispenser valve 166 can be opened to advance cold water from the cold water reservoir 132 to the dispenser 120. The ice maker valve 168 can be opened to advance water from the cold water reservoir 132 to the ice maker 20. Otherwise, each of the valves 162, 164, 166, 168 may be biased closed to prevent water from being advanced through the water system 126.
The control system 128 of the refrigerator 10 illustratively includes a controller 170, a user interface 172, and a number of sensors 174, 176, 180, 182, 183, 185, 187. The controller 170 is configured to operate the components of the water system 126 in response to inputs from the user interface 172 and the sensors 174, 176, 180, 182, 183, 185, 187. The user interface 172 is configured to display information and to receive user inputs. The sensors 174, 176, 180, 182, 183, 185, 187 detect information and communicate information to the controller 170.
The controller 170 includes a number of electronic components commonly associated with electronic units which are utilized in the control of electromechanical systems. For example, the controller 170 may include, amongst other components customarily included in such devices, a processor such as a microprocessor 184 and a memory device 186 such as a programmable read-only memory device (“PROM”) including erasable PROM's (EPROM's or EEPROM's). The memory device 186 is provided to store, amongst other things, instructions in the form of, for example, a software routine (or routines) which, when executed by the processor, allows the controller 170 to control operation of the water system 126 and other systems included in the refrigerator 10.
The user interface 172 is illustratively coupled to the controller 170 for two way communication via a signal line as shown in
The controller 170 is electrically coupled to each of the sensors 174, 176, 180, 182, 183, 185, 187 to receive inputs from each of the sensors 174, 176, 180, 182, 183, 185, 187 as shown in
Sensor 187 is coupled to the controller 170 via a signal line and is configured to detect the presence or absence of a magnet 189. The presence of the magnet 189 is indicative that the ice storage bin 54 is properly positioned in the ice maker receiving space 52 to receive ice produced by the ice maker 20. The absence of the magnet 189 is indicative that the ice storage bin 54 is not positioned, or is not properly positioned, in the ice maker receiving space 52 to receive ice produced by the ice maker 20. The sensor 187 may communicate the presence or absence of the magnet 189 to the controller 170. The controller 170 may be programmed to, in response to the sensor 187 detecting the presence of the magnet 189, initiate or allow the production of ice via the ice maker 20. The controller 170 may also be programmed to, in response to the sensor 187 detecting the absence of the magnet 189 (e.g., the sensor 187 not detecting the magnet 189), prevent the ice maker 20 from the producing of ice. The sensor 187 may be a reed switch that is configured to close a circuit when the magnetic field of the magnet 189 is detected and to open the circuit when no magnetic field is detected, or vice versa.
Additionally, the controller 170 is electrically coupled to the electrically controlled valves 162, 164, 166, 168 and the heating assembly 130 as shown in
Hence, the control system 128 including the controller 170 may be operated to control operation of the refrigerator 10. In particular, the controller 170 executes a routine including, among other things, a control scheme in which the controller 170 monitors outputs of the sensors 180, 185 in order to inform a user of detected scale build-up and to control the availability of hot water when water system 126 contains built up scale. To do so, the controller 170 communicates with the sensors 180, 185 in order to determine, among other things, if the water system 126, (and more particularly, if the components of the hot water line 135 that conducts water for the hot water function) is likely to contain a predetermined amount of scale build-up as indicated by an elevated temperature or pressure of water flowing through the dispenser 120. In some embodiments, the controller may communicate with both temperature sensors 183, 185 and compare the temperature rise across the heating assembly 130 to determine scale build up. Armed with this data, the controller 170 determines if a descaling cycle is desirable and if continued operation of the hot water function is allowable. Once it is determined if a descaling cycle is found to be desirable, the controller 170 can direct the user interface 172 to display a request for a user to initiate the descaling cycle. If the controller 170 determines that the continued operation of the hot water function is not allowable, the controller 170 can disable the water system 126 from providing hot water to the dispenser 120.
Referring to
The water filter assembly 200 includes a water filter 202. The water filter 202 has an external housing that includes a filter media that is disposed therein. The filter media is configured to purify the water within or flowing through the water system 126. The water filter 202, or more specifically the external housing of the water filter 202, includes a distal end 204, a proximal end 206, and a protrusion or handle 208 extending therefrom. More specifically, the handle 208 may extend from the proximal end 206. The water filter assembly 200 further includes a receiver, receiving bracket, or water filter receptacle 210 that is configured to receive the water filter 202. More specifically, the water filter receptacle 210 defines and space, cavity, or chamber 212 that is configured to receive the water filter 202. The water filter receptacle 210 may be disposed within an internal cavity (e.g., the fresh food compartment 12) of the refrigerator 10. The water filter receptacle 210 may be secured to a wall 13 of the cabinet 11 within the internal cavity (e.g., the ceiling within the fresh food compartment 12).
The water filter assembly 200 includes a fluid manifold 214 that is pivotably secured to refrigerator 10. More specifically, the fluid manifold 214 may be pivotably secured to the water filter receptacle 210 and may be disposed within the chamber 212 defined by the water filter receptacle 210. The fluid manifold 214 may correspond to or include the water filter port 122. The fluid manifold 214 is configured to engage the distal end 204 of the water filter 202 via axial rotation of the water filter 202 relative to the fluid manifold 214 (e.g., along axis 216) to establish fluid communication between the water filter 202 and the water system 126. The fluid manifold 214 may engage the distal end 204 of the water filter 202 via a threaded engagement or via a rotational lock. The distal end 204 may be referred to as the opposing end of the water filter 202 relative to the handle 208. The fluid manifold 214 is also configured to (i) pivot upward to transition the water filter 202 to an activated position 218 (see
The water filter assembly 200 includes a cover 222 that is pivotably secured to the refrigerator 10. More specifically, the cover 222 may be pivotably secured to the water filter receptacle 210. The cover 222 is configured to pivot upward to a closed position 224 (see
The water filter assembly 200 includes a cam 228 that is disposed within the water filter receptacle 210. More specifically, the cam 228 may be secured the water filter receptacle 210 and may be disposed within the chamber 212 defined by the water filter receptacle 210. The cam 228 may also be integral to the water filter receptacle 210. The cam 228 may be in the form of a plate. The cam 228 defines a cam profile 230.
The cam 228, or more specifically the cam profile 230, is configured to interfere with the handle 208 in response to partial axial rotation of the water filter 202 relative to the fluid manifold 214 such that the water filter 202 cannot completely pivot upward to the activated position 218 and such that the cover 222 cannot completely pivot upward to the closed position 224. A partial axial rotation of the water filter 202 relative to the fluid manifold 214 corresponds to a partial connection between the water filter 202 and the manifold 214. For example, in
The cam 228, or more specifically the cam profile 230, is configured to provide clearance for the handle 208 in response to full axial rotation of the water filter 202 relative to the fluid manifold 214 such that the water filter 202 can pivot upward to the activated position 218 and such that the cover 222 can pivot upward to the closed position 224. A full axial rotation of the water filter 202 relative to the fluid manifold 214 corresponds to a full connection between the water filter 202 and the manifold 214. For example, in
The water filter receptacle 210 and the cover 222 may include a latch or clip 242 that engages to secure the cover 222 in the closed position 224 (see
Referring to
The cover 222 is configured to pivot about a substantially horizontal axis 252. Substantially horizontal may refer to any incremental angle that is between exactly horizontal and 15° from exactly horizontal. The pivot bracket 244 is configured to pivot about a secondary axis 254 that is radially offset from the substantially horizontal axis 252. More specifically, the secondary axis 254 may be offset from the substantially horizontal axis 252 by an angle that is substantially 45°. Substantially 45° may refer to any incremental angle that is between exactly 45° and 5° from exactly 45°.
The pivot bracket 244 includes a divider plate 256 that separates water lines 258 that are routed to the fluid manifold 214. The pivot bracket 244 also includes a cage 260 that surrounds the water lines 258 that are routed to the fluid manifold 214. The pivot bracket defines orifices 262 for routing the water lines 258 to the fluid manifold 214, allowing the water lines 258 to be connected to the fluid manifold 214. The divider plate 256 and the cage 260 operate to route, divide, surround, and provide protection for the water lines 258. The divider plate 256 and the cage 260 further operate to prevent binding of the water lines 258.
It should be understood that the designations of first, second, third, fourth, etc. for any component, state, or condition described herein may be rearranged in the claims so that they are in chronological order with respect to the claims. Furthermore, it should be understood that any component, state, or condition described herein that does not have a numerical designation may be given a designation of first, second, third, fourth, etc. in the claims if one or more of the specific component, state, or condition are claimed.
The words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the disclosure. As previously described, the features of various embodiments may be combined to form further embodiments that may not be explicitly described or illustrated. While various embodiments could have been described as providing advantages or being preferred over other embodiments or prior art implementations with respect to one or more desired characteristics, those of ordinary skill in the art recognize that one or more features or characteristics may be compromised to achieve desired overall system attributes, which depend on the specific application and implementation. As such, embodiments described as less desirable than other embodiments or prior art implementations with respect to one or more characteristics are not outside the scope of the disclosure and may be desirable for particular applications.
This application is a continuation of U.S. application Ser. No. 17/957,121 filed Sep. 30, 2022, the disclosure of which is hereby incorporated in its entirety by reference herein.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 17957121 | Sep 2022 | US |
| Child | 18830808 | US |
