Patent Application
20250027712
The invention relates generally to a refrigerator appliance, for example, a back bar refrigerator appliance such as the type used in bars and restaurants to refrigerate and display containers such as beverage bottles.
Known back bar refrigerator appliances 100 are used for storing canned or bottled beverages and the like. They comprise a storage compartment 101 and a transparent door 102 optionally having a handle 103, as shown in
A light 105 is used to illuminate the contents of the refrigerator 100. The light 105 is located on a side of a rectangular-shaped support beam 104 that extends vertically at the front of the refrigerator 100. The light 105 is directed across the face of the storage compartment 101 and helps the consumer visualise the contents of the refrigerator through the window of the door.
A problem with this design is that a lot of the light emitted exits the refrigerator 200 through the door and is not used for illuminating the products, which leads to undesired energy consumption. In addition, the light may cause glare or reflections on the glass door, obscuring visibility of the products and leading to uneven illumination of the products.
According to an aspect of the present invention, there is provided a refrigerator appliance comprising:
Advantageously, the inclination of the primary direction relative to the back wall allows the light source to illuminate the contents of the refrigerator in a more efficient manner, by directing the light into the cabinet. Further advantageously, the support beam can be slimmer, thus reducing manufacturing costs and improving visibility of products within the cabinet.
In an embodiment, said primary direction is non-parallel to the side walls of the cabinet. In an embodiment, said primary direction is at an angle of between about 20 degrees and about 70 degrees from the back wall of the cabinet, for example between about 30 degrees and about 60 degrees, for example about 45 degrees. In such embodiments, the light is directed towards the storage compartment, improving illumination of the cabinet and reducing or eliminating the light that is emitted directly through the door.
In an embodiment, the support beam comprises an external surface that is parallel to the back wall of the cabinet, and a light mounting surface against which the light source is mounted such that the primary direction is normal to the light mounting surface.
In an embodiment, the support beam comprises a recess for receiving the light source, and wherein the light mounting surface is in the recess.
In an embodiment, the support beam comprises a projection extending into the cabinet, the projection being disposed to a side of the light source and comprising an angled side that is non-parallel to the back wall and side walls of the cabinet.
In an embodiment, the light source is a first light source for illuminating a first part of the cabinet, wherein the support beam further comprises a second light source for illuminating a second part of the cabinet, the second light source having a primary direction that is non-parallel to the back wall of the cabinet.
Advantageously, having more than one light source allows to illuminate the contents of multiple cabinets. In such an example, the support beam may be located at a divide between two storage compartments within the cabinet, and may be aligned at the meeting point of two doors.
In an embodiment, the support beam comprises a central projection extending into the cabinet, the central projection being disposed between the first light source and the second light source and comprising angled sides that are non-parallel to the back wall and side walls of the cabinet.
In an embodiment, the central projection is trapezoidal.
Advantageously, the angled sides, which may form a trapezoidal shape, minimises the space that the support beam occupies and, in turn, reduces the total depth of the appliance, thus providing a space-saving refrigerator. In addition, the visibility of the contents of the refrigerator appliance is improved.
In an embodiment, the support beam comprises a shell and a core, said core comprising a foam material. The foam material may be a thermally insulative foam, for example polypropylene foam. In an embodiment, the shell comprises sheet metal.
In an embodiment, the support beam comprises expanded polypropylene.
Advantageously, it provides thermal insulation. Further advantageously, the material used is fully recyclable.
In an embodiment, the light source comprises an LED strip. Advantageously, using an LED strip provides improved energy consumption and near-constant illumination along the length of the LED strip. The LED strip may extend substantially the length of the support beam and thereby illuminate the full height of the cabinet.
In an embodiment, the light source has an illumination angle of more than about 90 degrees, for example about 120°. Advantageously, this provides even distribution of light onto the contents of the shelves. Preferably, the primary direction is the mid-point of the illumination angle.
In an embodiment, the refrigerator appliance comprises a plurality of support beams. Advantageously, multiple sources of light may be provided to illuminate the contents of the refrigerator and to provide increased support to the shelves inside the refrigerator.
In an embodiment, the or each support beam extends vertically between the top wall and the bottom wall. In examples, the cabinet comprises a plurality of storage compartments, each storage compartment having a door. At least some of the plurality of support beams may be aligned with the dividing lines between adjacent storage compartments. Additionally or alternatively, at least some of the plurality of support beams may be provided at an end of the cabinet, adjacent one of the side walls.
In an embodiment, the or each support beam defines a door closure surface against which one or more doors is closed. The doors may comprise a seal that contacts the door closure surface when the door is closed. Advantageously, forming an air-tight closure of the door(s) allows for more efficient energy consumption.
In an embodiment, the or each door comprises a frame and a window, preferably a glass window.
In an embodiment, the cabinet comprises at least one shelf and wherein the at least one support beam is configured to support the at least one shelf. Each storage compartment may have one or more shelves that are supported on the or each support beam.
As used herein, the term “primary direction” is the direction in which the light source is oriented. In particular, the light source has an illumination angle (otherwise known as a beam angle). The illumination angle is the measurement of how wide the light spreads from the light source. The “primary direction” is the midpoint of this illumination angle, such that light spreads evenly either side of the primary direction. In examples, the illumination angle may be between 45 degrees and 180 degrees, for example about 120 degrees.
Embodiments of the invention are now described, by way of example only, hereinafter with reference to the accompanying drawings, in which:
Certain terminology is used in the following description for convenience only and is not limiting. The words ‘right’, ‘left’, ‘lower’, ‘upper’, ‘front’, ‘rear’, ‘upward’, ‘down’ and ‘downward’ designate directions in the drawings to which reference is made and are with respect to the described component when assembled and mounted. The words ‘inner’, ‘inwardly’ and ‘outer’, ‘outwardly’ refer to directions toward and away from, respectively, a designated centreline or a geometric centre of an element being described (e.g. central axis), the particular meaning being readily apparent from the context of the description.
Further, as used herein, the terms ‘connected’, ‘attached’, ‘coupled’, ‘mounted’ are intended to include direct connections between two members without any other members interposed therebetween, as well as, indirect connections between members in which one or more other members are interposed therebetween. The terminology includes the words specifically mentioned above, derivatives thereof, and words of similar import.
Further, unless otherwise specified, the use of ordinal adjectives, such as, “first”, “second”, “third” etc. merely indicate that different instances of like objects are being referred to and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking or in any other manner.
Like reference numerals are used to depict like features throughout.
In examples, the refrigerator appliance described herein is a “back bar refrigerator” or “bottle cooler”. Back bar refrigerator appliances, also called bottle coolers, are a type of commercial refrigerator that is typically sized to fit within a cavity or recess behind a bar, for example under a worksurface and/or between opposing walls.
A support beam 208 extends vertically between the top wall and the bottom wall 206. In this example the support beam 208 is aligned with the divide 204 between adjacent storage compartments 205, 205′ in the cabinet 201. The support beam 208 provides a door closure surface against which the door 207 is closed. The door 207 may include a sealing element, for example a rubber bead, that is in contact with the support beam 208 when the door is closed to form a seal. The support beam 208 may additionally support the top wall (not shown) of the cabinet 201, and/or it may be used to support the or each shelf in the cabinet. For example, the support beam 208 may include one or more brackets, or fixing points for brackets, that support a shelf.
It will be understood that the appliance 200 can comprise one or more storage compartments 205, 205′ within the cabinet 201. In this case, a plurality of support beams 208 can be used, with each support beam 208 being aligned with a divide between adjacent storage compartments 205, 205′. Each storage compartment 205, 205′ may have its own shelves and the shelves may be supported on the support beams 208. A single support beam, such as that shown in
The appliance 200 may further comprise a technical cabinet located adjacent to or behind the cabinet 201. This technical cabinet may house part of the refrigeration system, particularly those parts that generate heat (i.e., the condenser and compressor), and may additionally house the expansion valve. One or more evaporators of the refrigeration system are typically positioned within the cabinet where the products are stored and act to cool the cabinet.
The support beam 208 comprises an external surface 211 that is parallel to the back wall 202 of the cabinet 201 and faces the door 207, forming a door closure surface. The support beam 208 also includes a light mounting surface 212. In this example, the light mounting surface 212 is located in a recess 213 that is configured to receive a light source 214.
The light source 214 can be an LED strip, alternatively, any other type of LED can be used, for example a plurality of LED light bulbs. Alternatively, the light source 214 may comprise a light guide with a bulb, for example an LED bulb, at one end. The light source 214 can have an illumination angle of more than about 90 degrees, for example about 120 degrees, thus providing broad illumination of the contents of the cabinet 201.
The light source 214 has a primary direction denoted as X-X′ that is non-parallel to the back wall 202 of the cabinet 201. In this case, the light is directed into the cabinet 201, thus providing sufficient illumination of the displayed items, and does not interfere with the users as it is directed away from the line of sight of the user. In an alternative embodiment, the primary direction X-X′ of the light source 214 is additionally positioned non-parallel also to the side walls 203, 204 of the cabinet 201. Such an arrangement means that the primary direction X-X′ is angled inwardly into the cabinet, and in particular into each storage compartment 205, 205′ in the cabinet.
In examples, the primary direction X-X′ is at an angle of between about 20 degrees and about 70 degrees from the back wall 202 of the cabinet 201, for example between about 30 degrees and about 60 degrees, for example about 45 degrees.
It will be further understood that the light source 214 is mounted inside the recess 213, optionally with the primary direction X-X′ being normal to the light mounting surface 212.
The support beam 208 further comprises a projection 215 that, when the support beam 208 is mounted on the cabinet 201, extends into the cabinet 201 and is disposed to a side of the light source 214. The projection 215 provides structural strength for the support beam 208 and may additionally provide a shelf support or fastening location. As shown, the projection 215 comprises an angled side 216 that is angled with respect to the back and/or side walls of the cabinet. The angled side 216 means that the projection 215 does not block any light from the light source 214, and provides for greater visibility into the cabinet 201 from the outside.
As explained above, in some embodiments the cabinet 201 has more than one storage compartment 205, 205′ and more than one door 207, 207′. The support beam 208 shown in
In some examples, the support beam 208 may be formed of one half of the support beam 208 illustrated in
It will be understood that the second light source 214′ also has a primary direction that is non-parallel to the back and/or side wall of the second cabinet, similarly to the first light source 214.
c show perspective views of the support beams clamped together to be used between the two adjacent doors 207, 207′ (not shown). In
It will be appreciated by persons skilled in the art that the above detailed examples have been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departing from the scope of the invention as defined by the appended claims. Various modifications to the detailed examples described above are possible.
Through the description and claims of this specification, the words “comprise” and “contain” and variations of them mean “including but not limited to”, and they are not intended to (and do not) exclude other moieties, additives, components, integers or steps. Throughout the description and claims of this specification, the singular encompasses the plural unless the context otherwise requires. In particular, where the indefinite article is used, the specification is to be understood as contemplating plurality as well as singularity, unless the context requires otherwise.
Features, integers, characteristics, compounds, chemical moieties or groups described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive. The invention is not restricted to the details of any foregoing embodiments. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract or drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.
It will be appreciated by persons skilled in the art that the above embodiment(s) have been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departing from the scope of the invention as defined by the appended claims. Various modifications to the detailed designs as described above are possible.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2311020.8 | Jul 2023 | GB | national |
