The present subject matter relates generally to refrigerator appliances, and more particularly to temperature probes for refrigerator appliances.
Generally, refrigerator appliances include a cabinet that defines a fresh food chamber for receipt of food items for storage. Many refrigerator appliances further include a freezer chamber for receipt of food items for freezing and storage. Certain refrigerator appliances also include an ice maker. Consistent and precise temperature control in refrigerator appliances is a key operating principle for any such appliance. However, food items within the food or freezer chambers can have a delta temperature to the ambient air inside such chambers. This can be observed by more than a 10° F. heat rise, e.g. if fermentation is present.
Thus, certain refrigerator appliances control the temperature in the chambers using thermistors. In such instances, the location of the thermistor(s) and the chamber shape and/or size greatly affect the accuracy of the temperature readings. As such, the inaccuracies have to be compensated by offset in the refrigerator software. For example, in certain refrigerator appliances, it is desirable to maintain drinks in a food chamber at a temperature just slightly above the freezing point, but without freezing (e.g. 33° F./0.56° C.). Further, it may be desirable to maintain meat in a freezer chamber at a temperature just slightly below the freezing point, but without defrosting (e.g. 29° F./−1.67° C.). However, in such instances, it is difficult to maintain the temperature requirement +/−2°.
In view of the foregoing, it would be desirable to be able to compensate for temperature differences in various chambers of the refrigerator appliance to maintain the desired temperature within each chamber. Accordingly, the present disclosure is directed to a refrigerator appliance configured with a temperature probe that addresses the aforementioned issues.
Aspects and advantages of the invention will be set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the invention.
In one exemplary aspect of the present disclosure, a refrigerator appliance assembly is provided. The refrigerator appliance assembly includes a cabinet having at least one chamber for receipt of an item, a door permitting access to the at least one chamber, a temperature port within the at least one chamber, and a temperature probe communicatively coupled with the temperature port. The temperature probe is configured to generate one or more first temperature signals representative of an actual temperature of at least one of the item or the at least one chamber. The refrigerator appliance also includes a controller communicatively coupled to the temperature probe. Thus, upon receipt of the one or more first temperature signals, the controller determines the actual temperature of at least one of the item or the at least one chamber. Further, the refrigerator appliance also includes a user interface communicatively coupled to the controller. Accordingly, the user interface displays the actual temperature to a user and allows the user to adjust the actual temperature of at least one of the item or the at least one chamber to a desired temperature of the item.
In another exemplary aspect of the present disclosure, a system for controlling an actual temperature within a plurality of chambers of a refrigerator appliance is provided. The system includes a plurality of temperature ports, with one of the plurality of temperature ports being within each of the plurality of chambers. The system also includes a plurality of temperature probes, with one of the plurality of temperature probes communicatively coupled with one of the plurality of temperature ports. As such, the plurality of temperature probes are configured to generate one or more first temperature signals representative of an actual temperature of at least one of an item with a respective chamber of the plurality of chambers or air within the respective chamber. The system also includes a controller communicatively coupled to each of the plurality of temperature probes. Thus, the controller is configured to determine the actual temperature based on, at least, the one or more first temperature signals. Further, the system includes a user interface communicatively coupled to the controller. Accordingly, the user interface displays the actual temperature of each of the plurality of chambers and allows the user to adjust the actual temperature of at least one of the item or the at least one chamber to a desired temperature of the item.
In yet another exemplary aspect of the present disclosure, a method for controlling an actual temperature within a plurality of chambers of a refrigerator appliance is provided. The method includes communicatively coupling a temperature probe to a temperature port within the at least one chamber. Further, the method includes generating one or more first temperature signals via the temperature probe, the one or more first temperature signals representative of the actual temperature of at least one of the item or the at least one chamber. The method also includes transmitting the one or more first temperature signals to a controller communicatively coupled to the temperature probe. Further, the method includes determining the actual temperature within the at least one chamber based on, at least, the one or more first temperature signals. Moreover, the method includes displaying the actual temperature via a user interface.
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.
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.
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 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.
As used herein, the term “or” is generally intended to be inclusive (i.e., “A or B” is intended to mean “A or B or both”). 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 “upstream” and “downstream” refer to the relative flow direction with respect to fluid flow in a fluid pathway. For example, “upstream” refers to the flow direction from which the fluid flows, and “downstream” refers to the flow direction to which the fluid flows.
As used herein, terms of approximation, such as “generally,” or “about” include values within ten percent greater or less than the stated value. 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. For example, “generally vertical” includes directions within ten degrees of vertical in any direction, e.g., clockwise or counter-clockwise.
Referring now to the figures,
It is recognized, however, that the benefits of the present disclosure apply to other types and styles of refrigerator appliances such as, for example, a top mount refrigerator appliance, a side-by-side style refrigerator appliance or a standalone ice-maker appliance. Consequently, the description set forth herein is for illustrative purposes only and is not intended to be limiting in any aspect to any particular refrigerator chamber configuration.
The refrigerator doors 128 are rotatably hinged to an edge of the housing 102 for selectively accessing the fresh food chamber 122. In addition, a freezer door 130 is arranged below the refrigerator doors 128 for selectively accessing the freezer chamber 124. The freezer door 130 may be coupled to a freezer drawer (not shown) slidably mounted within the freezer chamber 124. The refrigerator doors 128 and the freezer door 130 are shown in the closed configuration in
In some embodiments, various storage components are mounted within the fresh food chamber 122 to facilitate storage of food items therein, as will be understood art. In particular, the storage components may include storage bins 116, drawers 118, and shelves 120 that are mounted within the fresh food chamber 122. As such, the storage bins 116, drawers 118, and shelves 120 are configured for receipt of food items (e.g., beverages or solid food items) and may assist with organizing such food items. As an example, the drawers 184 can receive fresh food items (e.g., vegetables, fruits, or cheeses) and increase the useful life of such fresh food items.
In some embodiments, the refrigerator appliance 100 also includes a dispensing assembly 140 for dispensing liquid water or ice. The dispensing assembly 140 may include a dispenser 142, for example, positioned on or mounted to an exterior portion of the refrigerator appliance 100 (e.g., on one of doors 128). Moreover, as shown in
Still referring to
In further embodiments, as shown in
In additional or alternative embodiments, chilled air from a sealed system (not shown) of the refrigerator appliance 100 may be directed into components within the sub-compartment 162. For instance, the sub-compartment 162 may receive cooling air from a chilled air supply duct 165 and a chilled air return duct 167 (
In optional embodiments, as shown in
Referring particularly to
More specifically, as shown in
As used herein, the term “processor” refers not only to integrated circuits referred to in the art as being included in a computer, but also refers to a controller, a microcontroller, a microcomputer, a programmable logic controller (PLC), an application specific integrated circuit, and other programmable circuits. Additionally, the memory device(s) 60 may generally include memory element(s) including, but not limited to, computer readable medium (e.g., random access memory (RAM)), computer readable non-volatile medium (e.g., a flash memory), a floppy disk, a compact disc-read only memory (CD-ROM), a magneto-optical disk (MOD), a digital versatile disc (DVD) and/or other suitable memory elements.
Such memory device(s) 180 may generally be configured to store suitable computer-readable instructions that, when implemented by the processor(s) 178, configure the controller to perform various functions as described herein. Additionally, the controller 176 may also include a communications module 182 to facilitate communications between the controller and the various components of the refrigerator appliance 100. An interface can include one or more circuits, terminals, pins, contacts, conductors, or other components for sending and receiving control signals. Moreover, the controller 176 may include a sensor interface 184 (e.g., one or more analog-to-digital converters) to permit signals transmitted from the temperature probe(s) 210 described herein to be converted into signals that can be understood and processed by the processor(s) 178.
Referring now to
Thus, the temperature probe 210 is configured to generate one or more first temperature signals representative of an actual temperature of an item in the chamber 204 or the air within the chamber 204. In certain embodiments, as shown in
In addition, as shown in
In further embodiments, as shown in
As such, upon receipt of the first temperature signal(s) from the temperature probe 210 (and optionally the second temperature signal(s) from the thermistor(s) 220), the controller 212 is configured to determine the actual temperature of the item or the chamber 204 as a function of one or both of the first and second temperature signals. Furthermore, the user interface 213 can display the actual temperature to a user and allow the user to adjust the actual temperature to a desired temperature of the item. For example, in an embodiment, the user interface 213 allows a user to increase or decrease the actual temperature within the chamber 204 to reach the desired temperature of the item depending on a desired process. For example, the desired process may include a brewing process, a cooling process, a freezing process, a defrosting process, or a heating process.
Accordingly, in certain embodiments, the refrigerator appliance assembly 200 may also include at least one heating element to assist with completing a brewing process, a defrosting process, or any other heating process. For example, as shown in
Referring now to
As shown at (302), the method 300 includes communicatively coupling a temperature probe to a temperature port within the chamber. In one embodiment, the method 300 may also include positioning the temperature port on a top surface of the chamber. In further embodiments, communicatively coupling the temperature probe to the temperature port within the chamber may include plugging the temperature probe into the temperature port.
As shown at (304), the method 300 includes generating one or more first temperature signals via the temperature probe, wherein the first temperature signal(s) are representative of the actual temperature of at least one of the item or the at least one chamber. For example, in an embodiment, generating one or more first temperature signals via the temperature probe may include contacting the item via the wired conductive probe to measure the actual temperature of the item. Alternatively, the temperature probe may include a wireless infrared probe that measures the actual temperature of the item via infrared emissions within the chamber. Still referring to
As shown at (308), the method 300 includes determining the actual temperature within the at least one chamber based on, at least, the one or more first temperature signals. As shown at (310), the method 300 includes displaying the actual temperature via a user interface. As shown at (312), the method 300 includes adjusting the actual temperature to a desired temperature of the item. For example, in an embodiment, adjusting the actual temperature to the desired temperature of the item may include increasing or decreasing the actual temperature within the chamber to reach the desired temperature of the item depending on a desired process, such as those processes described herein.
In another embodiment, the method 300 may also include generating one or more second temperature signals via one or more thermistors within the chamber and determining the actual temperature within the chamber based on both the first and second temperature signals.
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.
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Number | Date | Country | |
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20220120495 A1 | Apr 2022 | US |