The present embodiments relate to air conditioners for vehicles including but not limited to recreational road vehicles such as caravans, mobile homes and the like, and in particular to an air-conditioner with an improved system of attachment to the vehicle.
There are a number of manufacturers of air-conditioners for recreational vehicles who supply air-conditioners which must be fitted to a range of recreational vehicles of different sizes. Many recreational vehicles are manufactured with square openings or cut-out sections in the roof ready for installation of an air-conditioner, which are typically one of two sizes—a square 360 mm on each side or 400 mm on each side. This presents a problem to the manufacturer of air-conditioners on how to adapt installation to 2 different opening sizes, at the same time as keeping manufacture and parts numbers at a minimum.
It is an object of the present embodiment to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
It is an object, in at least one form, to provide an improved air-conditioner to overcome the above disadvantage, applicable to recreational and other vehicles.
According to a first broad aspect, there is provided an air-conditioner adapted to be fitted to a vehicle, the air conditioner comprising:
an external unit containing a compressor and at least one heat exchanger element and having at least one air channel positioned for supplying conditioned air and at least one air channel positioned for receiving return air through an opening in a roof or wall of the vehicle, wherein the opening is either a first type or a second type having a different size from the first type;
a frame adapted to be installed in the opening and between the external unit and the roof or wall and having locating elements on each of a first side and an opposite second side of the frame, the locating elements being configured together to locate the frame in the opening and to locate the frame in the external unit;
wherein the locating elements in the frame are positioned so that if the opening is the first type, the frame is adapted to be installed with the first side facing the roof or wall, and if the opening is the second type, the frame is adapted to be installed with the first side facing the external unit.
In one embodiment, the locating elements on the first side of the frame comprise a projection adapted to engage with a side of the opening of the first type, and one of the locating elements on the second side is adapted to engage with a locating element in the external unit, when first side is facing the roof or wall.
In one embodiment, the locating elements on the first side of the frame comprise a first side projection adapted to engage with a side of the opening of the first type when the first side is facing the roof or wall, and the locating elements on the second side of the frame comprise a second side projection adapted to engage with a first external unit locating element in the external unit, when the first side is facing the roof or wall; and
the second side projection is adapted to engage with the side of the opening of the second type when the first side is facing the external unit, and the first side projection is adapted to engage with a second external unit locating element in the external unit when the first side is facing the external unit.
One or more of the first side projection, second side projection, first external unit locating element and second external unit locating element may comprise ridges engaging the sides of the opening. The ridges may be tapered to facilitate location with the sides of the opening or the external unit.
In one embodiment, one or more of the locating elements in the frame is a recess or hole adapted to engage with a projection in the external unit.
In one embodiment, the frame comprises a duct insert adapted to be installed in the frame in either of two orientations appropriate to installation in the first type or second type of opening respectively, the duct insert providing a duct for directing supply air into indoor componentry of the air-conditioner. Also included may be a telescopic duct size adjuster adapted to slidingly engage with the duct insert and to be fitted into the indoor componentry so as to telescopically adjust an operational length of the duct to accommodate different roof or wall thicknesses. The duct may be heat insulated to reduce heat to transfer between the supply air and the return air.
In one embodiment, also included is a ceiling plate adapted to be installed in an interior of the vehicle on the ceiling over the opening and fixed through the opening with bolts into the external unit. A fascia cover may be included which is adapted to be installed on the ceiling plate.
According to a second broad aspect of the embodiments there is provided a frame adapted to be installed in an opening in a roof or wall of a vehicle between an external unit of an air-conditioner and the roof or wall, the opening being either a first type or a second type having a different size from the first type, the external unit containing a compressor and at least one heat exchanger element and having at least one air channel positioned for supplying conditioned air and at least one air channel position for receiving return air through the opening;
wherein: the frame has locating elements on each of a first side and an opposite second side of the frame, the locating elements being configured together to locate the frame in the opening and to locate the frame in the external unit; and
the locating elements in the frame are positioned so that if the opening is the first type, the frame is adapted to be installed with the first side facing the roof or wall, and if the opening is the second type, the frame is adapted to be installed with the first side facing the external unit.
A third aspect provides a method of installing the air conditioner in a roof or wall of a vehicle, the method comprising the steps of:
revealing or constructing an opening in the roof or wall of the vehicle, wherein the opening is either a first type or a second type having a different size from the first type;
fitting the frame into the opening, if the opening is the first type, the frame is installed with the first side facing the roof or wall, and if the opening is the second type, the frame is installed with the second side facing the roof or wall;
fitting a duct insert into a supply aperture of the frame;
fitting the external unit onto the frame over the opening using the locating elements;
fitting a telescopic duct size adjuster into the duct insert; and
fitting a ceiling plate to the external unit from inside the vehicle.
Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the drawings, the same elements are denoted by the same reference numerals throughout. In the following description, detailed descriptions of known functions and configurations incorporated herein have been omitted for conciseness and clarity.
Referring first to
Referring to
Referring now to
Referring now to
Referring now to
When opening 70 is the larger standard size, first side 21 is disposed upwards in installation and ridge 22 serves as a locating element to locate frame 20 into unit 10, while ridge 26 serves as a locating element to locate frame 20 into opening 70. When opening 70 is the smaller standard size, second side 25 is disposed upwards in installation and ridge 25 serves as a locating element to locate frame 20 into unit 10 while ridge 22 serves as a locating element to locate frame 20 into opening 70.
Referring now to
Referring now to
Referring now to
By providing a frame element for installation which can be used for two types of opening using different orientations, the invention simplifies manufacture and installation flexibly suited to two different market standards.
Persons skilled in the art will also appreciate that many variations may be made to the invention without departing from the scopes of the invention, which is determined from the broadest scope and claims.
For example, while the locating elements shown above are all ridges, it will be appreciated that many other geometries are possible within the broadest scope of the invention. For example, incomplete ridges or multiple locating lugs not extending significantly in the third dimension are within the scope, as are recesses or holes in frame 20 shaped to engage with corresponding projections in the base of the external unit 10, and vice versa.
Further, while the example above applies to installation in a roof of a vehicle, the invention extends in its broadest aspects to installation in a wall.
Further also, the openings may be any shape and the claimed “different size” of the second type of opening compared to the first type of opening encompasses any different dimensional size of the opening. For example, in relation to rectangular openings the first and second types include different lengths, different widths or different lengths and widths.
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention. Further, any method steps recited are not necessarily intended to be performed temporally in the sequence written, or to be performed without pause once started, unless the context requires it
Although the invention has been described with reference to specific examples, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms.
It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
Number | Date | Country | Kind |
---|---|---|---|
2016900617 | Feb 2016 | AU | national |
This divisional patent application claims priority to and benefit of, under 35 U.S.C. § 121, U.S. patent application Ser. No. 16/078,478, filed Aug. 21, 2018 and titled “Vehicle Air Conditioner”, issuing as U.S. Pat. No. 11,034,208 on Jun. 15, 2021, which claims priority to and benefit of, under 35 U.S.C. § 119(e), PCT application number PCT/AU2017/050153, filed Feb. 22, 2017, titled, “Vehicle Air Conditioner”, which claims priority to Australian patent application AU 2016900617, filed Feb. 22, 2016, all of which is incorporated by reference herein.
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Number | Date | Country | |
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20210354526 A1 | Nov 2021 | US |
Number | Date | Country | |
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Parent | 16078478 | US | |
Child | 17342723 | US |