SOUND ATTENUATION MODULE AND OVERSIZED GRILL
A Sound Attenuation Module and Oversized Grill is disclosed which prevents noise generated by an HVAC system from traveling through the duct system and into the room to which the air is directed. The goal is accomplished by use of oversized duct grills and an module placed between the wall and HVAC System, and uses an enclosure designed to expand the distance that the noise must travel.
The present disclosure relates generally to the field of air conditioning and ducting.BACKGROUND OF THE DISCLOSURE
Heating, ventilation, and air conditioning (HVAC) systems have moving parts that cause noise that is bothersome to those in the rooms which receive treated air.
The HVAC industry has struggled with the balance of desired attributes in such systems; a system that moves air more quickly necessarily creates more noise than one that moves air more slowly. This is not due solely to the fan, but to other moving parts as well, include motors, compressors, vibration of metal parts, and even refrigerant flow.
One of the solutions that the HVAC industry uses to lessen the noise caused in a space receiving treated air includes simply increasing the distance from the moving parts to the air-conditioned space. Use of this approach requires distance, and is difficult to employ in a wall-mount unit that is often used in temporary buildings. This approach also requires substantial labor, as routing a longer path duct between the blower or fan outlet to the desired location becomes a task requiring an expensive skilled and experienced worker in the field.
As conditions change over time in temporary buildings, the equipment used in an HVAC system must change. Many conditions can trigger these changes, including a need to condition the air in a higher volume of, or new government regulations require a change in a system's components, or a failed system has to be replaced. In these situations, industry vendors and service personnel need parts that are backwards compatible with the existing building structure as much as possible.
The construction industry needs an apparatus that allows for sound attenuation of an HVAC system, and easy retrofitting of that system into existing products and systems.SUMMARY OF THE DISCLOSURE
The present disclosure includes a Sound Attenuation Module and Oversized Grill used to reduce the sound of an HVAC system by adding an apparatus to add distance between the fan and the space, without elongating the physical system unduly, while also allowing for a retro-fit installation.
Other features and advantages of the present disclosure will be apparent to those of ordinary skill in the art upon reference to the following detailed description taken in conjunction with the accompanying drawings.
For a better understanding of the disclosure, and to show by way of example how the same may be carried into effect, reference is now made to the detailed description of the disclosure along with the accompanying figures in which corresponding numerals in the different figures refer to corresponding parts in one embodiment of the invention, as follows:
While the making and using of various embodiments of the present disclosure are discussed in detail below, it should be appreciated that the present disclosure provides many applicable inventive concepts, which can be embodied in a wide variety of specific contexts. The disclosure is primarily described and illustrated hereinafter in conjunction with various embodiments of an HVAC system comprising a Sound Attenuation Module 500 and Oversized Grill 100. The specific embodiment discussed herein is, however, merely illustrative of specific ways to make and use the disclosure and do not limit the scope of the disclosure to the specific context disclosed.
In using an Oversized Grill 100 instead of the typical grill that merely covers the Return Opening 630, the flow of air has a larger area in the Louvers 110 through which to travel. This increased area through the Louvers 110 creates less sound than would be created if the Louvers 110 were smaller.
In the embodiment shown in
The disclosure thus far has detailed an interior SAM 500 installed on the exterior wall, and to which an HVAC System 600 is installed. However, the SAM 500 can be installed on the interior of an air-conditioned room as shown in
Finally, the SAM 500 and HVAC System 600 may be constructed as one combined piece, as shown in
The SAM 500 is built so that an already installed HVAC System can be retrofit. Though the drawings reflect a particular build, it is considered within the art to construct similar designs which match up with the inlet and outlet openings of various systems to enable an easy, ductless interjection between the Wall 300 and HVAC System 600.
It is assumed that an individual experienced in the art could modify the embodiments disclosed in this application to fit a number of needs that are variations of the embodiments disclosed. For example, the disclosed embodiments discuss SAMs which fit sandwiched between an external wall and HVAC system, but one in the art could easily construct a 90-Degree SAM 850 that turns the air ducting 90 degrees to one side, so that the HVAC System 600 is turned 90 degrees, placing one side of the HVAC System 600 against the exterior Wall 300, as seen in the top view of
LEGEND to drawings and items referenced:
- 100 Oversized Grill
- 110 Louvers
- 200 Grill Mounting Mechanism
- 300 Wall Foundation
- 310 Wall Opening
- 500 SAM
- 600 HVAC system
- 610 Supply Air
- 620 Return Air
- 630 Return Opening
- 635 HVAC Return
- 640 Supply open
- 650 Supply Opening
- 655 HVAC Supply
- 660 Attenuation Panel
- 700 Floor
- 750 Combination SAM-HVAC System
- 800 Half-SAM
- 850 90-Degree SAM
1. A method of attenuating noise generated by an HVAC system, comprising:
- a) choosing an HVAC system to be mounted on the exterior wall of a building;
- b) creating holes in that same exterior wall between the interior of a building and the exterior of the building which match the hole and duct pattern of the chosen HVAC system;
- c) mounting a Sound Attenuation Module (“SAM”, an enclosed box on the exterior side of the wall, said SAM equipped with: i) a hole pattern on one side of the box that match the holes previously constructed in the exterior wall and the HVAC system; ii) an additional hole pattern matching the same holes on the opposite side of the box; iii) two air ducts constructed within the box which connect matching holes on either side of the box that creates a physically longer air duct in at least one of the connected pathways;
- d) mounting the HVAC system to the SAM.
2. The method of attenuating noise generated by an HVAC system as described in claim 1, with the additional component in the SAM of Attenuating Panels, which are placed in the ducting within the SAM.
3. An apparatus to attenuate noise generated by an HVAC system, comprising:
- a) an enclosure with two matching external hole pattern on two sides of the enclosure which also match the duct connection holes of an HVAC system;
- b) ducts within the enclosure which connect the matching holes that constitute the hole pattern previously identified;
- c) where at least one interior duct connecting two of the matching holes leading to the enclosure's exterior duct openings are physically constructed to be deliberately longer than is necessary.
4. An apparatus as in claim 3, in which the enclosure is shaped like a rectangular prism.
5. An apparatus as in claim 4, in which the external duct holes are on opposing sides of the enclosure rectangular prism.
6. An apparatus as in claim 3, in which the two pairs of external duct holes are constructed on two adjacent side.
7. An apparatus as in claim 3, in which sound attenuating panels or material are installed within the ducts to both assist diversion of the air in a desired direction within the duct, and to absorb sound.
8. An Oversized Grill designed to cover an air duct, comprising an oversized duct grill and louvers, and an installation mechanism which deliberately holds the grill out from the wall.
9. An Oversized Grill as in claim 8 in which the Louvers is installed and held in place by an extension from the wall that is made of such material as wood and sheetrock.
10. An Oversized Grill as in claim 8, in which the Louvers are framed, and that frame is sufficiently large that it covers the open duct without substantial other materials.
11. An apparatus as in claim 3, in which the Sound Attenuation Module is installed on the exterior of an exterior wall.
12. An apparatus as in claim 3, in which the Sound Attenuation Module is installed inside a room to be continued.
International Classification: F24F 13/24 (20060101);