Systems and methods of ice making devices
The system uses a liquid level sensor and pump to manage water flow in ice making devices, addressing contamination and cleaning complexity by reducing water storage and enhancing operational efficiency.
Patent Information
- Application Number
- PCT/CN2024/096741
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-12-04
AI Technical Summary
Ice making devices face issues with water storage tanks becoming contaminated and difficult to clean, leading to polluted ice and complex cleaning operations.
The system employs a liquid level sensor to control water flow and reduce water storage components, using a pump to manage water levels and prevent water buildup in chambers, allowing for simplified cleaning and reduced power consumption.
This approach minimizes water storage, reduces contamination risk, and simplifies cleaning operations while maintaining efficient ice production.
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Figure CN2024096741_04122025_PF_FP_ABST
Abstract
Description
SYSTEMS AND METHODS OF ICE MAKING DEVICESBACKGROUND
[0001] Ice making devices, such as ice making appliances, can freeze water into ice, and can manipulate the ice into various useful structures, such as ice pellets. Ice making devices can rely on housings or tanks to collect water used in the ice making devices, or to store water. Such housings can be susceptible to bacteria or other pollutants, and can be difficult to clean or require complex cleaning operations, such as cleaning operations that require at least partial disassembly of the ice making devices.SUMMARY
[0002] Systems and methods in accordance with the present disclosure can allow for ice making devices to manage water flow with reduced water storage components, and can allow for ice making devices to implement less complex cleaning operations. For example, various ice making devices described herein can extrude (e.g., process) ice material into targeted shapes, such as pellets, and can use a liquid level sensor to control water level in one or more portions of the ice making devices. Various such systems and methods as described herein can allow for ice to be produced while avoiding, for example, dirt accumulation, difficult cleaning, and / or water pollution. The ice making device can use less power, such as by requiring less frequent operation in cleaning mode and / or for full circulation of water through the ice making device.
[0003] At least one aspect relates to an ice maker. The ice maker can include a first chamber including an inlet and an outlet. The ice maker can include a second chamber coupled with the outlet. The ice maker can include an auger disposed in the first chamber, the auger to drive ice from the first chamber into the second chamber. The ice maker can include one or more pipes coupled with the first chamber, the second chamber, and a pump coupled with a water source. The ice maker can include a liquid level sensor coupled with the one or more pipes to detect a liquid level in the one or more pipes and a controller to control operation of the pump, based on the liquid level, to provide water from the water source to the first chamber while preventing water flow into the second chamber.
[0004] At least one aspect relates to an ice making apparatus. The ice making apparatus includes a water tank and a pump coupled with the water tank. The ice making apparatus includes a chamber for forming ice, the chamber includes an inlet above the water tank and an outlet above the inlet. The ice making apparatus includes an ice box to receive the ice formed in the chamber, the ice box having an ice inlet coupled with the outlet of the chamber, and a water port. The ice making apparatus includes one or more pipes coupled with the pump, the inlet, and the water port. and a level sensor coupled with the one or more pipes, the level sensor disposed above the inlet and below the water port.
[0005] At least one aspect relates to a method. The method can include detecting, by one or more processors, an instruction to form ice in a chamber coupled with a water source. The chamber can be coupled with an ice box at least partially above the chamber. The method can include receiving, by the one or more processors, from a level sensor coupled with the chamber, an indication of a level of water. The method can include causing, by the one or more processors, a pump to provide water from the water source into the chamber based on the instruction and the level of the water being less than a threshold level corresponding to the ice box.BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 depicts a schematic diagram of an example of an ice making appliance.
[0007] FIG. 2 depicts a perspective view of an example of an ice making appliance.
[0008] FIG. 3 depicts a cross-sectional view of the ice making appliance of FIG. 2.
[0009] FIG. 4 depicts a fluid flow for the ice making appliance of FIG. 2.
[0010] FIG. 5 depicts another fluid flow for the ice making appliance of FIG. 2.
[0011] FIG. 6 depicts a detailed cross sectional view of the ice making appliance of FIG. 2.
[0012] FIG. 7 depicts a perspective view of various components of the ice making appliance of FIG. 2.
[0013] FIG. 8 depicts a flow diagram of an example of a method of making ice.DETAILED DESCRIPTION
[0014] Following below are more detailed descriptions of various concepts related to, and implementations of, methods, apparatuses, and systems of ice making devices. The various concepts introduced above and discussed in greater detail below can be implemented in any of numerous ways.
[0015] Ice making devices in accordance with the present disclosure can implement a refrigeration cycle to freeze water into ice, such as into pieces of ice. The pieces of ice can be formed into ice of a target structure, such as a cylindrical structure having target texture, density, and / or size characteristics. For example, an ice shaver, scraper, and / or auger can be used to drive ice material from a surface on which the ice freezes into an extruder to form the ice into the target structure. The ice making devices can have reduced water storage and / or usage, such as by using a level sensor, which may be disposed in a location between a pump and a chamber for which to limit water storage, to detect water levels and control water flow based on the detected water levels.
[0016] In some implementations, ice making devices in accordance with the present disclosure can be deployed independently of a refrigerator. These devices may not have similar limits (e.g., compared to refrigerator-based ice makers) on the amount of ice that can be produced, and may not rely on the refrigeration system of the refrigerator to form the ice. Ice making devices can include a water tank, such as a top water tank, as a communicating vessel between a bottom water storage tank and an ice making bucket in which ice that is formed is deposited. However, the top water tank can become contaminated with dirt, bacteria, or other pollutants, and thus can result in polluted ice. Furthermore, the water in the top water tank may not be automatically drained or easily cleaned.
[0017] Some ice making appliances form ice in an auger system, which drives water upwards through an auger casing towards an extruding head. The auger casing can be disposed within an evaporator that is connected to a cooling system. The cooling system cools the water in the auger casing and gradually forms flakes inside the auger casing, which are then scraped by the auger. This process builds the flakes up into a more viscous consistency, which the auger system compresses and then extrudes through the extruding head, forming the shape of pellets. Such systems lack a capability to automatically drain water from the auger system back to the bottom water storage tank, which can also lead to water buildup and pollution.
[0018] Ice making devices in accordance with the present disclosure can obviate the need for a water tank, such as a top water tank that is separate from a tank in which water to be used for the ice formation is stored and / or that collects water from the formed ice. The ice making device can include a liquid level sensor to indicate a level in one or more portions of the ice making device. An output signal from the liquid level sensor can be used to control a water level in the ice making appliance (e.g., in one or more pumps, in the auger system, in the ice making bucket, for example and without limitation) . This can allow the ice making device to avoid the need for the top water tank to hold excess water in the ice making device, such as by indicating when the water level is above a target threshold.
[0019] In some implementations, a position of the level sensor relative to one or more components of the ice making device can facilitate draining water through the ice making device and / or a cleaning cycle of the ice making device. For example, a water inlet of an ice discharge box in which the ice that is formed is received can be higher than the liquid level sensor. The liquid level sensor can be higher than a water inlet of the auger casing. The water inlet of the auger casing can be higher than a pipe fitting (e.g., joint) used to direct water flow in the ice making device in various directions, which can allow for water to flow back to a water storage tank through the pipe pitting.
[0020] FIG. 1 depicts an example of an appliance 100 (e.g., ice-making appliance, ice maker, ice-making device, stand-alone appliance) . The components as illustrated in FIG. 1 can be disposed within a housing (e.g., housing 204 of FIG. 2) , which can be positioned separately from other refrigeration devices in a space, such as to provide the appliance 100 as a stand-alone device.
[0021] The appliance 100 can include or be coupled with at least one water source, e.g., at least one water storage tank 102. The appliance 100 can receive water to store in the water storage tank 102. The appliance 100 can perform various operations on the water, including flowing the water through one or more components of the appliance 100, and freezing the water to form ice. The water storage tank 102 can be fluidly connected with one or more components of the appliance 100 as described herein. The water storage tank 102 can be a container (e.g., a receiving space, a receptacle) to store water to be used and processed by the appliance 100.
[0022] The appliance 100 can include at least one pump 104. The pump 104 can pump (e.g., move, force) water in the water storage tank 102 to one or more components of the appliance 100 by way of at least one fluid circuit 106. The pump 104 can be a centrifugal pump, positive displacement pump, jet pump, multistage pump, hydraulic ram pump, and any other suitable pump to pump water. The pump 104 can move water from the water storage tank 102 through various components of the appliance 100 such as an ice making bucket (not shown) .
[0023] Water can be moved through the appliance 100 through a fluid circuit 106. The fluid circuit 106 can include one or more pipes and / or pipe fittings to pass water throughout the appliance 100. For example, the fluid circuit 106 can fluidly connect the water storage tank 102 with a chamber 304 as depicted in FIG. 3. The fluid circuit 106 can be used to support one or more of multiple operations; for example, the fluid circuit 106 can be used to flow water for making ice as well as for cleaning the appliance 100.
[0024] The appliance 100 can include at least one level sensor 108. The level sensor 108 can monitor a level of water in the appliance 100 (e.g., monitor a liquid level in the fluid circuit 106, such as in one or more pipes of the fluid circuit 106) . The level sensor 108 can output a signal indicative of the level of water. For example, the level sensor 108 can include one or more capacitive sensors, which can output an indication of detected water at a location of the one or more capacitive sensors. The level sensor 108 can include at least one sensor having a pin structure. The level sensor 108 can include a plurality of level sensors (e.g., coupled with the fluid circuit 106 at different vertical positions in the appliance 100) , such as to provide output signals indicative of whether the level of water corresponds to multiple positions in the appliance 100.
[0025] The appliance 100 can include at least one controller 110. The controller 110 can include one or more processors (e.g., hardware processors) and a memory. The processor may be a general purpose or specific purpose processor, an application specific integrated circuit (ASIC) , one or more field programmable gate arrays (FPGAs) , a group of processing components, or other suitable processing components. The processor may be configured to execute computer code or instructions stored in memory (e.g., fuzzy logic, etc. ) or received from other computer readable media (e.g., CDROM, network storage, a remote server, etc. ) to perform one or more of the processes described herein. The memory may include one or more data storage devices (e.g., memory units, memory devices, computer-readable storage media, etc. ) configured to store data, computer code, executable instructions, or other forms of computer-readable information. The memory may include random access memory (RAM) , read-only memory (ROM) , hard drive storage, temporary storage, non-volatile memory, flash memory, optical memory, or any other suitable memory for storing software objects and / or computer instructions. The controller can be implemented as a hardware processor including a Central Processing Unit (CPU) , an Application-Specific Integrated Circuit (ASIC) , an Application-Specific Instruction-Set Processor (ASIP) , a Graphics Processing Unit (GPU) , a Physics Processing Unit (PPU) , a Digital Signal Processor (DSP) , a Field Programmable Gate Array (FPGA) , a Programmable Logic Device (PLD) , a Controller, a Microcontroller unit, a Processor, a Microprocessor, an ARM, or the like, or any combination thereof. The memory may include database components, object code components, script components, or any other type of information structure for supporting the various activities and information structures described in the present disclosure. The memory may be communicably connected to the processor via the processing circuit and may include computer code for executing (e.g., by processor) one or more of the processes described herein. The memory can include various modules (e.g., circuits, engines) for completing processes described herein. The controller 110 can include and / or be coupled with one or more user interface devices and / or one or more network interface devices, such as to facilitate receiving or providing inputs and outputs for the controller 110. The controller 110 (e.g., stored in memory) can include any one or more instructions, functions, algorithms, machine learning models, logic, rules, heuristics, or various combinations thereof to implement operations described herein.
[0026] The controller 110 can control operation of the pump 104. For example, the controller 110 can cause the pump 104 to drive water from the water storage tank 102 into the fluid circuit 106, such as to provide water to the chamber 304. As such, the controller 110 can also, simultaneously, prevent water from flowing through the fluid circuit 106. The controller 110 can control and adjust a rate of the pump 104.
[0027] The controller 110 can control operation of the pump 104 based on the level of water indicated by the level sensor 108. For example, the controller 110 can evaluate one or more criteria based on the level of water. The one or more criteria can include one or more thresholds for the level of water and / or a rate of change of the level of water. In some implementations, the one or more thresholds correspond to one or more locations in the appliance 100, such as inlets and / or outlets of components of the appliance 100. This can allow the controller 110 to maintain the level of water at target levels (e.g., upper and / or lower limits) relative to flow into or out of components of the appliance 100. For example, responsive to the level of water being less than a minimum threshold, the controller 110 can maintain the pump 104 in a state of pumping water and / or increase a flow rate of output of the pump 104.
[0028] Responsive to the level of water being greater than a maximum threshold, the controller 110 can cause the pump 104 to discontinue pumping water and / or decrease the flow rate of output of the pump 104. The controller 110 can control operation of the pump 104 to provide water to the chamber 304 while preventing water flow into a chamber 360 (e.g., as described with reference to FIG. 3, the chamber 360 into which ice from the chamber 304 is delivered) , such as by controlling operation of the pump 104 to prevent the level of water from exceeding a level of an inlet of the chamber 360.
[0029] The controller 110 can receive information from the level sensor 108 regarding the level of water being at the minimum threshold or the maximum threshold. In some implementations, the level sensor 108 can include a plurality of the level sensor 108. For example, the controller 110 can receive information from a first level sensor configured to detect the minimum threshold and from a second level sensor configured to detect the maximum threshold. This can allow the controller 110 to receive feedback from multiples of the level sensor 108 and maintain the level of water within the appliance 100 between the minimum threshold and the maximum threshold.
[0030] In some implementations, the controller 110 controls operation of the pump 104 based on a mode of operation of the appliance 100. The controller 110 can detect the mode of operation based on at least one of a user input (which can be received via the user interface 208 described with reference to FIG. 2 and / or a remote device communicatively coupled with the controller 110) or a schedule stored by the controller 110. The mode of operation can include an ice making mode. For example, in the ice making mode, the controller 110 can cause the pump 104 to provide water for forming into ice (e.g., in the chamber 304) , and can control the pump 104 in a manner that prevents water from being pumped into the chamber 360. The mode of operation can include a cleaning mode. For example, in the cleaning mode, the pump 104 can cause circulation of water through the fluid circuit 106, such as to allow for water to flow into the chamber 360 from the fluid circuit 106 and / or out of the chamber 360 into the water storage tank 102.
[0031] In some implementations, the appliance 100 includes a plurality of level sensors 108. For example, the appliance 100 can include a first level sensor 108 at a first position, and a second level sensor 108 at a second position. The first position can be higher than the second position (e.g., in a frame of reference in which the water storage tank 102 is below the second level sensor 108) . By including multiple level sensors 108, the appliance 108 can perform operations based on water levels detected at each respective level sensor 108.
[0032] For example, the controller 110 can control operation of the pump 104 based on a first level of water indicated by the first level sensor 108 (e.g., based on a signal from the first level sensor 10 that indicates whether the level of water is above the first position or below the first position) . For example, the controller 110 can discontinue (or reduce) pumping by the pump 104 responsive to the first level sensor 108 indicating that the first level of water is higher than the first position of the first level sensor 108. The controller 110 can turn on (or increase) pumping by the pump 104 responsive to the first level sensor 108 indicating that the first level of water is lower than the first position of the first level sensor 108; in some implementations, the controller 110 turns on (or increases) pumping by the pump 104 responsive to the first level sensor 108 indicating that the level of water is lower than the first position and second level sensor 108 indicating that the level of water is higher than the second position. The appliance 100 can use the water level detected at the second level sensor 108 as an indicator as to whether water should be added to the water storage tank 102; for example, the controller 110, responsive to receiving a signal from the second level sensor 108 that the level of water is lower than the second position of the second level sensor 108, can cause a user interface (e.g., user interface 208 depicted in FIG. 2) and / or a remote device to present an alert for a user to provide water to the water storage tank 102. In some implementations, the appliance 100 include a single level sensor 108; the output from the single level sensor 108 can be used to perform operations including controlling the pump 104 and providing alerts regarding water levels in the appliance 100.
[0033] Referring further to FIG. 1, the appliance 100 can include at least one ice generator 112. The controller 110 can control operation of the ice generator 112 to cause ice to be formed, including to cause pieces of ice to be formed into larger ice portions (e.g., pellets and / or nuggets) . The controller 110 can control operation of the ice generator 112 according to the mode of operation; for example, the controller 110 can cause the ice generator 112 to operate to form ice in the ice making mode.
[0034] FIG. 2 depicts an example of the appliance 100. The appliance 100 can include at least one housing 204. The housing 204 can be a shell. The housing 204 can house (e.g., contain) various components of the appliance 200. The housing 204 can include one or more of metal, plastic, and / or a composite. An inner liner (not shown) that includes one or more of metal, plastic, and / or a composite can be coupled with an inner surface of the housing 204. The housing 204 can include one or more cover members, which can be moved (e.g., pivoted, rotated) to provide access into the appliance 100. The housing 204 can include at least one vent 212, which can allow for heat to be exhausted from the appliance 100.
[0035] The appliance 100 can include at least one user interface 208. The user interface 208 can be coupled with the controller 110 to receive one or more user inputs to provide to the controller 110, such as for providing parameters for operation of the appliance 100, presentation of visual and / or audio outputs regarding the appliance, and / or selection of the mode of operation of the appliance 100. For example, the user interface 208 can receive an input to start an ice making cycle of the appliance 100. The user interface 208 can receive one or more parameters for operation of the appliance such as frequency, speed, and / or size of the ice output by the appliance 100; the controller 110 can receive the parameters and control operation of the appliance 100 (or one or more components thereof) based on the received parameters.
[0036] As depicted in FIG. 3, the appliance 100 can include a chamber 304 (e.g., a first chamber 304) coupled with a refrigeration assembly 308. The chamber 304 can extend longitudinally along an axis 302, which can be a vertical axis of the appliance 100. The chamber 304 can include at least one outlet and at least one inlet. The refrigeration assembly 308 can withdraw heat from the chamber 304, such as to cause water in the chamber 304 to freeze.
[0037] The refrigeration assembly 308 can include at least one evaporator 312. The evaporator 312 can be coupled with the chamber 304, such as to be in contact with an outer surface of the chamber 304 (or within a distance from the chamber 304 to allow for sufficient heat transfer from the chamber 304 to the evaporator 312) . The evaporator 312 can include one or more coils extending around the chamber 304. The evaporator 312 can allow for refrigerant to flow around the chamber 304 to withdraw heat from the chamber 304, such as to cause water in the chamber 304 to freeze. For example, the evaporator 312 can cause an ice layer to form on an inner surface of the chamber 304.
[0038] The refrigeration assembly 308 can include at least one compressor 316. The compressor 316 can compress the refrigerant from the evaporator 312 (e.g., based on being driven by power from a power supply) . For example, the compressor 316 can convert the refrigerant into a high pressure, high temperature state. The refrigeration assembly 308 can include at least one condenser 320, which can cause condensation of the refrigerant from the compressor 316 (e.g., to provide to the evaporator 312) .
[0039] Referring further to FIG. 3, the water storage tank 102 can be disposed in a bottom portion of the appliance 100, and can be coupled with one or more pipes 324 of the fluid circuit 106 via the pump 104. For example, an inlet of the pump 104 can be coupled with an outlet of the water storage tank 102. The water storage tank 102 can be manually and / or automatically refilled with water via the controller 110. One of the level sensor 108 can be coupled with the water storage tank 102 to monitor the level of water within the water storage tank 102.
[0040] The one or more pipes 324 can be coupled with at least one fitting 328. The fitting 328 can be a pipe fitting, such as a three-way fitting and / or pipe joint (e.g., a tee joint) . The fitting 328 can allow for water pumped by the pump 104 to be driven to multiple components in the appliance 100. The fitting 328 can include a plurality of ports to connect with the one or more pipes 324. The fitting 328 can be located above the pump 104.
[0041] As depicted in FIG. 3, the fitting 328 can include a first fitting port (e.g., first inlet 332) between the pump 104 and the fitting 328, a second fitting port (e.g., first outlet 336) between inlet 330 of the chamber 304 and the fitting 328, and can include a third fitting port (e.g., second outlet 340) between the level sensor 108 and the fitting 328. The one or more pipes 324 can be coupled with the fitting 328 such that the fitting 328 is arranged as a three-way pipe to provide a junction coupling the one or more pipes 324. The one or more pipes 324 can receive water from the water storage tank 102, and can divide the water through the first fitting port, the second fitting port, and the third fitting port. For example, the one or more pipes 324 can cause a portion of the water pumped by the pump 104 to flow to the chamber 304, and another portion to flow to the chamber 360 (e.g., depending on how the controller 110 controls the pump 104, such as by controlling a power and / or flow rate of the pump 104) .
[0042] In some implementations, the fitting 328 is arranged as a two-way pipe to provide a junction coupling the one or more pipes 324. For example the one or more pipes 324 can form a junction within the one or more pipes 324. A portion of the one or more pipes 324 that can form a junction can be coupled with the fitting 328.
[0043] As depicted in FIG. 3, the fitting 328 can include a first inlet 332 coupled with the pump 104 to receive water from the pump 104. The fitting 328 can include the first outlet 336 which can be coupled with the chamber 304 (e.g., port 512 of chamber 304 depicted in FIG. 5) to allow for water to flow from the fitting 328 to an inlet 330 of the chamber 304.
[0044] The second outlet 340 can be coupled with the level sensor 108; for example, the level sensor 108 can be positioned to detect the level of water in a portion of the one or more pipes 324 connected with the second outlet 340, such as a pipe 324 attached to the second outlet 340 and extending upward from the second outlet 340. The at least one level sensor 108 can be above the fitting 328. As depicted in FIG. 6, the at least one level sensor 108 can be attached to the pipe 324 attached to the second outlet 340; in some implementations, the at least one level sensor 108 is separated from the one or more pipes 324 that couple the fitting 328 with the chamber 360 by one or more auxiliary piping elements.
[0045] Referring further to FIG. 3 and to FIG. 7, the appliance 100 can include (e.g., the ice generator 112 can include) at least one motor 344. The motor 344 can be disposed on the axis 302, such as to cause rotation of an auger (e.g., auger 704 depicted in FIG. 7; an ice scraper) in the chamber 304 about the axis 302. In some implementations, the motor 344 can cause the auger to move along a vertical axis of the chamber 304. The auger 704 can include one or more sharp edges, such as bladed edges and / or threads, which can rotate about the axis 302 responsive to operation of the motor 344 to cause ice pieces on an inner surface of the chamber 304 to be driven towards an extruder 708 at an end 348 of the chamber 304.
[0046] The extruder 708 can facilitate forming ice pieces driven by the auger 704 into ice of a target shape, such as based on the structure of one or more openings 710 in the extruder 708. For example, the extruder 708 can extrude ice into pellets.
[0047] The appliance 100 can include a chamber 360 (e.g., a second chamber) coupled with the chamber 304, such as to receive ice from the chamber 304 and / or the extruder 708. The chamber 360 can be or include an ice box, such as from which ice formed by the appliance 100 can be retrieved. The chamber 360 can be coupled with the outlet of the chamber 304. The chamber 360 can include one or more apertures aligned with the one or more outlets of the chamber 304 to receive ice. As depicted in FIG. 3, the chamber 360 can include a port 356 coupled with the one or more pipes 324, such as to be coupled with the pipe 324 for which the level sensor 108 detects the level of water.
[0048] The port 356 can allow for water to flow from the one or more pipes 324 to the chamber 360 (or vice versa) . In this case, the pipe 324, for example, can be coupled with the second outlet 340 and the chamber 360. For example, in cleaning mode, the level sensor 108 can detect the level of water in the pipe 324 and allow for water to circulate through the chamber 360. In some implementations, the chamber 360 includes multiple housings, such as a first housing 362 to receive the ice from the chamber 304, and a second housing 364 (e.g., ice basket) having at least one opening 604 to receive ice from the chamber 360. The second housing 364 can be disposed in an inner housing 608 of the housing 204.
[0049] In some implementations, the one or more pipes 324 are not coupled with one or more components of the appliance 100 using the fitting 328. The one or more pipes 324 can branch off and couple the pump 104, the inlet of the chamber 304, and the port 356 (e.g., by one or more of multiple pipes 324 that may circumvent and / or not include the fitting 328) . The level sensor 108 can be coupled with the one or more pipes 324.
[0050] In some implementations, the port 356 can be a first port and the chamber 360 can include a second port. The second port can be below the first port and coupled with the water storage tank 102 and the one or more pipes 324. For example, when the pump 104 is driving water to the chamber 360 in cleaning mode, the water can enter through the first port and exit through the second port. The water can also be driven by the pump to the chamber 360 via the first port and the second port and discharged through the second housing 364.
[0051] The second housing 364 can provide a receiving space for ice formed by the appliance 100 away from the axis 302. The chamber 360 (e.g., the first housing 362) can include an opening to receive ice from the chamber 304, such as to allow ice to move out of the chamber 304 and into the chamber 360.
[0052] Ice extruded by the extruder 708 can be disposed in the chamber 360, and can be deposited in the second housing 364. The second housing 364 can hold the ice to be removed by a user. The second housing 364 can include a plurality of apertures, and can be removable from the housing 204 to be cleaned. The second housing 364 can be located and / or aligned below a cover of the housing 204.
[0053] As depicted in FIG. 3, the port 356 can be above the level sensor 108. For example, the level sensor 108 can be disposed to detect the level of water at a position below the port 356, such as a position below where the chamber 360 may receive water pumped from the pump 104. This can allow the controller 110 to prevent water from being pumped into the chamber 360 (e.g., to prevent inadvertent water buildup) . The level sensor 108 can be coupled with and / or disposed in the one or more pipes 324 above a point at which the one or more pipes 324 are coupled with the inlet 330, which can allow for the controller 110 to cause the pump 104 to provide water to the chamber 304 for ice making while using the level of the water to prevent water from flowing into the chamber 360. In some implementations, the first level sensor can be positioned below the port 356 and the second level sensor can be positioned above the point at which the one or more pipes 324 are coupled with the inlet 330. This can allow the controller 110 to control the level of water in various settings, for example, in the cleaning mode and the ice making mode.
[0054] For example, the controller 110 can receive the indication of the level of water (e.g., in one or more pipes 324) from the level sensor 108. The level sensor 108 can be disposed above the inlet of the chamber 304 and below the port 356. The controller 110 can selectively control operation of the pump 104 to flow water into the chamber 304, and to maintain the level of water in the one or more pipes 324 below the port 356.
[0055] The chamber 304, the chamber 360, and the one or more pipes 324 can be arranged relative to the water storage tank 202 to allow water in at least one of the chamber 304, the chamber 360, or the one or more pipes 324 to be assisted and / or driven by gravity into the water storage tank 102. For example, while the water pump 104 is off (e.g., not in use) , water in the chamber 304 can return to the water storage tank 102 in the absence of a force and / or under atmospheric pressure (e.g., from the water pump 104) . In some implementations, the pump 104 can be a first pump and a second pump can be coupled with the one or more pipes 324 and configured to drive water from at least one of the chamber 304, the chamber 360, and / or the one or more pipes 324 back to the storage tank 102.
[0056] In some implementations, the plurality of the level sensor 108 can also be located at one or more positions. For example, the first level sensor can be contiguously coupled with the second outlet 340 while the second level sensor can be contiguously coupled with the port 356. The first level sensor and the second level sensor can be coupled with the second outlet 340, positioned below the port 356 with the first level sensor positioned below the second level sensor. The level sensor 108 can also be coupled with the chamber 304 and / or 360. For example, the first level sensor can be positioned between the pump 104 and the fitting 328, the second level sensor can be positioned below the port 356 and above the fitting 328, and a third level sensor can be positioned between the chamber 304 and the fitting 328. The first level sensor could also be positioned below the inlet of the chamber 304.
[0057] FIG. 4 depicts an example of a flow path 400 for water and ice in the appliance 100. As depicted in FIG. 4, the controller 110 can cause the pump 104 to pump water into the chamber 304. In the chamber 304, ice can be formed, which can be delivered into the chamber 360, such as to deposit the ice in the second housing 364. The controller 110 can receive the level of water from the level sensor 108 disposed above the fitting 328 and below the port 356, and can control operation of the pump 104 according to the received level of water, such as to prevent the level of water from exceeding a threshold in which the water would flow form the one or more pipes 324 into the chamber 360. To allow for draining of water in the appliance 100, such as during a period in which the pump 104 is not pumping, the chamber 360, the chamber 304, and the fitting 328 can each be arranged above one or more inlets to the water storage tank 102.
[0058] FIG. 5 depicts an example of a flow path 500 for water in the appliance 100, such as in a cleaning mode. In the flow path 500, water can be allowed to circulate through the chamber 360. For example, the controller 110 may not restrict operation of the pump 104 based on the level of water, such as to allow water to be pumped through the one or more pipes 324 into the port 356 (from which the water can be flowed out of the chamber 360 into the water storage tank 102) . For example, the controller 110 can control operation of the pump 104 in the cleaning mode to cause water to circulate through the appliance 100, such as from the water storage tank 102 through one or more components of the fluid circuit 106 and back into the water storage tank 102.
[0059] FIG. 8 depicts an example of a method 800 of making ice. The method 800 can be performed using various devices described herein, such as the appliance 100. The method 800 can be performed responsive to activation of an ice making device, or during operation of the ice making device. The method 800 can be performed to control water flow through the ice making device, such as to maintain water levels in the ice making device at a target level and / or within a target range to allow for ice making while preventing excess water storage and / or buildup in one or more chambers or housings of the ice making device.
[0060] The method 800 can include detecting (802) (e.g., receiving) an instruction to form ice in a chamber (e.g., ice making bucket) coupled with a water source. The chamber can be coupled with an ice box at least partially above the chamber. The instruction can be received from the user through a user interface. The instruction can be received from a remote device coupled with the ice making device. The instruction can be detected responsive to evaluation of a schedule.
[0061] Responsive to detecting the instruction, an ice making operation can be performed. For example, a motor can be driven to cause an ice scraper and / or auger to scrape ice within an ice making bucket. The ice can be driven to an extruder, which can form the ice into a target shape. The ice, e.g., the extruded ice, can be moved to a chamber, such as for removal by a user.
[0062] The method 800 can include receiving (804) an indication of a level of water from a level sensor coupled with the chamber. The level sensor can be disposed above an inlet of the chamber and below a port of the ice box. The indication can include the level of water, such as to indicate the level of water in one or more pipes coupled with the chamber. The indication can be based on whether the level of water within the ice making bucket meets a threshold required for making ice.
[0063] The method 800 can include causing (806) a pump to provide water from a water source to the ice making bucket based on the instruction and the level of water being less than the threshold level. The indication can indicate that the level of water is too low, which can be used to cause the pump to pump water to the ice making bucket from a water storage tank and / or increase a flow rate of pumping of water.
[0064] Responsive to detecting that the level of water in the ice making bucket is greater than a threshold level, operation of the pump can be modified, such as to reduce a flow rate of water and / or discontinue pumping. The pump can be operated at a first power level responsive to detecting the instruction to form ice. The pump can also be operated at a second power level greater than the first power level responsive to detecting an instruction to operate in the cleaning mode, such as to cause fluid flow at a greater flow rate at the second power level. The second power level can be sufficient to cause water to flow through the ice box (e.g., to overcome gravity for delivering water from the water storage tank into the ice box) .
[0065] References herein to the positions of elements (e.g., “top, ” “bottom, ” “above, ” “below” ) are merely used to describe the orientation of various elements in the FIGURES. The orientation of various elements can differ according to other illustrative implementations, and that such variations are intended to be encompassed by the present disclosure. References herein to the order of elements (e.g., “first, ” “second, ” “third, ” “fourth, ” “fifth, ” “sixth, ” “seventh” ) are merely used for ease of description relative to each element in the FIGURES.
[0066] While operations are depicted in the drawings in a particular order, such operations are not required to be performed in the particular order shown or in sequential order, and all illustrated operations are not required to be performed. Actions described herein can be performed in a different order.
[0067] Having now described some illustrative implementations, it is apparent that the foregoing is illustrative and not limiting, having been presented by way of example. In particular, although many of the examples presented herein involve specific combinations of method acts or system elements, those acts, and those elements can be combined in other ways to accomplish the same objectives. Acts, elements and features discussed in connection with one implementation are not intended to be excluded from a similar role in other implementations.
[0068] The phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including” “comprising” “having” “containing” “involving” “characterized by” “characterized in that” and variations thereof herein, is meant to encompass the items listed thereafter, equivalents thereof, and additional items, as well as alternate implementations consisting of the items listed thereafter exclusively. In one implementation, the systems and methods described herein consist of one, each combination of more than one, or all of the described elements, acts, or components.
[0069] Any references to implementations or elements or acts of the systems and methods herein referred to in the singular can also embrace implementations including a plurality of these elements, and any references in plural to any implementation or element or act herein can also embrace implementations including only a single element. References in the singular or plural form are not intended to limit the presently disclosed systems or methods, their components, acts, or elements to single or plural configurations. References to any act or element being based on any information, act or element can include implementations where the act or element is based at least in part on any information, act, or element.
[0070] Any implementation disclosed herein can be combined with any other implementation or embodiment, and references to “an implementation, ” “some implementations, ” “one implementation” or the like are not necessarily mutually exclusive and are intended to indicate that a particular feature, structure, or characteristic described in connection with the implementation may be included in at least one implementation or embodiment. Such terms as used herein are not necessarily all referring to the same implementation. Any implementation may be combined with any other implementation, inclusively or exclusively, in any manner consistent with the aspects and implementations disclosed herein.
[0071] References to “or” may be construed as inclusive so that any terms described using “or” may indicate any of a single, more than one, and all of the described terms. References to at least one of a conjunctive list of terms may be construed as an inclusive OR to indicate any of a single, more than one, and all of the described terms. For example, a reference to “at least one of ‘A’ and ‘B’ ” can include only ‘A’ , only ‘B’ , as well as both ‘A’ and ‘B’ . Such references used in conjunction with “comprising” or other open terminology can include additional items.
[0072] Where technical features in the drawings, detailed description or any claim are followed by reference signs, the reference signs have been included to increase the intelligibility of the drawings, detailed description, and claims. Accordingly, neither the reference signs nor their absence have any limiting effect on the scope of any claim elements. Modifications of described elements and acts such as variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations can occur without materially departing from the teachings and advantages of the subject matter disclosed herein. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of discrete elements or positions can be altered or varied. Other substitutions, modifications, changes and omissions can also be made in the design, operating conditions and arrangement of the disclosed elements and operations without departing from the scope of the present disclosure.
[0073] The present disclosure contemplates methods, systems and program products on any machine-readable media for accomplishing various operations. The embodiments of the present disclosure may be implemented using existing computer processors, or by a special purpose computer processor for an appropriate system, incorporated for this or another purpose, or by a hardwired system. Embodiments within the scope of the present disclosure include program products comprising machine-readable media for carrying or having machine-executable instructions or data structures stored thereon. Such machine-readable media can be any available media that can be accessed by a general purpose or special purpose computer or other machine with a processor. By way of example, such machine-readable media can comprise RAM, ROM, EPROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to carry or store desired program code in the form of machine-executable instructions or data structures and which can be accessed by a general purpose or special purpose computer or other machine with a processor. When information is transferred or provided over a network or another communications connection (either hardwired, wireless, or a combination of hardwired or wireless) to a machine, the machine properly views the connection as a machine-readable medium. Thus, any such connection is properly termed a machine-readable medium. Combinations of the above are also included within the scope of machine-readable media. Machine-executable instructions include, for example, instructions and data which cause a general purpose computer, special purpose computer, or special purpose processing machines to perform a certain function or group of functions.
[0074] Systems and methods described herein may be embodied in other specific forms without departing from the characteristics thereof. Further relative parallel, perpendicular, vertical or other positioning or orientation descriptions include variations within + / -10%or + / -10 degrees of pure vertical, parallel or perpendicular positioning. References to “approximately, ” “about” “substantially” or other terms of degree include variations of + / -10%from the given measurement, unit, or range unless explicitly indicated otherwise. Coupled elements can be electrically, mechanically, or physically coupled with one another directly or with intervening elements. Scope of the systems and methods described herein is thus indicated by the appended claims, rather than the foregoing description, and changes that come within the meaning and range of equivalency of the claims are embraced therein.
Claims
1.An ice maker, comprising:a first chamber comprising an inlet and an outlet;a second chamber coupled with the outlet;an auger disposed in the first chamber, the auger to drive ice from the first chamber into the second chamber;one or more pipes coupled with the first chamber, the second chamber, and a pump coupled with a water source;a liquid level sensor coupled with the one or more pipes to detect a liquid level in the one or more pipes; anda controller to control operation of the pump, based on the liquid level, to provide water from the water source to the first chamber while preventing water flow into the second chamber.2.The ice maker of claim 1, wherein the controller is to:control operation of the pump, in an ice making mode of the ice maker, to pump water from the water source through the one or more pipes into the first chamber; andcontrol operation of the pump, in a cleaning mode of the ice maker, to pump water from the water source through the one or more pipes into the second chamber, the second chamber coupled with the water source to allow the pumped water to flow from the second chamber to the water source.3.The ice maker of claim 1, wherein the second chamber comprises a first housing coupled with the outlet of the first chamber, the first housing forming a first opening, and a second housing forming a second opening to allow ice to move out of the first opening and into the second housing by way of the second opening.4.The ice maker of claim 1, further comprising an evaporator around an exterior of the first chamber, the evaporator to flow a refrigerant to remove heat from the first chamber to cause the water provided to the first chamber to freeze into the ice.5.The ice maker of claim 1, wherein the liquid level sensor is disposed in the one or more pipes above a point at which the one or more pipes are coupled with the inlet of the first chamber.6.The ice maker of claim 1, wherein the liquid level sensor is disposed in the one or more pipes below a point at which the one or more pipes are coupled with the second chamber.7.The ice maker of claim 1, wherein the first chamber, the second chamber, and the one or more pipes are arranged relative to the water source to allow water in at least one of the first chamber, the second chamber, or the one or more pipes to be driven by gravity into the water source.8.The ice maker of claim 1, further comprising a motor coupled with the auger to rotate the auger in the first chamber to cause the auger to shave ice pieces from a surface of the first chamber to move the shaved ice pieces towards the outlet of the first chamber.9.The ice maker of claim 1, wherein the liquid level in the one or more pipes is indicative of the liquid level in the first chamber.10.The ice maker of claim 1, wherein the liquid level sensor is a first liquid level sensor disposed at a first position, and the ice maker comprises a second liquid level sensor coupled with the one or more pipes and disposed at a second position below the first position.11.An ice making apparatus, comprising:a water tank;a pump coupled with the water tank;a chamber for forming ice, the chamber comprising an inlet above the water tank and an outlet above the inlet;an ice box to receive the ice formed in the chamber, the ice box having an ice inlet coupled with the outlet of the chamber, and a water port;one or more pipes coupled with the pump, the inlet, and the water port; anda level sensor coupled with the one or more pipes, the level sensor disposed above the inlet and below the water port.12.The ice making apparatus of claim 11, wherein the one or more pipes comprise a fitting comprising a first fitting port between the pump and the fitting, a second fitting port between the inlet and the fitting, and a third fitting port between the level sensor and the fitting, the second fitting port below the inlet.13.The ice making apparatus of claim 11, comprising:an auger disposed in the chamber; anda motor coupled with the auger, the motor to rotate the auger about a vertical axis.14.The ice making apparatus of claim 11, comprising:the water port is a first water port; andthe ice box comprises a second water port below the first water port, the second water port coupled with the water tank.15.The ice making apparatus of claim 11, comprising:a controller comprising one or more processors to:receive an indication of a level of water in the one or more pipes from the level sensor; andselectively control operation of the pump to (1) flow water into the chamber for the forming of the ice and (2) maintain the level of water in the one or more pipes below the water port of the ice box.16.The ice making apparatus of claim 11, wherein the one or more pipes are arranged to allow water to flow by gravity from any of the chamber or the ice box towards the water tank.17.A method, comprising:detecting, by one or more processors, an instruction to form ice in a chamber coupled with a water source, the chamber coupled with an ice box at least partially above the chamber;receiving, by the one or more processors, from a level sensor coupled with the chamber, an indication of a level of water; andcausing, by the one or more processors, a pump to provide water from the water source into the chamber based on the instruction and the level of the water being less than a threshold level corresponding to the ice box.18.The method of claim 17, further comprising discontinuing, by the one or more processors, operation of the pump based on the level of the water being greater than the threshold level.19.The method of claim 17, further comprising controlling, by the one or more processors, responsive to detecting the instruction, operation of a drive assembly to cause an auger disposed in the chamber to rotate.20.The method of claim 17, further comprisingoperating the pump, by the one or more processors, at a first power level responsive to detecting the instruction to form the ice; andoperating the pump, by the one or more processors, at a second power level greater than the first power level, responsive to detecting an instruction to operate in a cleaning mode.
Citation Information
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