Embodiments of the present disclosure relate generally to luminaires, and more particularly to a junction box-driver assembly for direct mount luminaires.
Direct mount luminaires (herein ‘luminaires’) are recessed lighting units that are installed in mounting surfaces such as drywall ceilings or suspended ceilings without a recessed housing. The luminaires usually require electrical conductors to supply electrical power to the light sources of the luminaires. To be code compliant, i.e., to meet the National Electric Code (NEC) or other codes for safe installation of electrical wiring and equipment, the electrical conductors or any other electrical wiring to the luminaire are required to be routed through a junction-box that is assigned to the luminaire.
Conventional junction boxes are not configured to be installed in the ceiling or attached to a mounting frame that is disposed in the ceiling after the ceiling has been finished. So, typically, in new construction, conventional junction boxes must be installed, e.g., attached to the joists in the ceiling or to a mounting frame that is disposed in the ceiling prior to finishing the ceiling.
Further, conventional junction boxes are not configured to house electrical power supply components therein, such as a driver associated with a luminaire. Instead, in conventional luminaires, the driver associated with the luminaire may be disposed in or attached to a light module of the luminaire that comprises the light source. Said arrangement of a driver within the light module provides very little or poor thermal separation of the driver from the heat generated by the light source of the light module, which in turn may affect the longevity of the driver. Further, said arrangement does not allow the light module and the driver to be removed and replaced separately and easily because the light module and the driver may be attached as a single unit which may be inconvenient and undesirable.
The driver may be taken out of the light module and moved to the mounting frame (e.g., plaster frame) to provide flexibility and good thermal separation of the driver from the light source of the light module. However, said movement of the driver to the mounting frame may not be practicable because the mounting frame may not be configured to accommodate the separate footprints of both the junction box and driver. Expanding the mounting frame to accommodate both the junction box and driver separately will increase the manufacturing cost, which will eventually translate to higher product cost to the consumer.
Additionally, in conventional systems, the junction boxes are attached to the mounting frames using fasteners which require the installer to use tools, such as screw drivers or other appropriate fastening tools. Said conventional systems do not allow quick installation, removal, and replacement of the junction boxes.
This background information is provided to reveal information believed to be of possible relevance to the present disclosure. No admission is necessarily intended, nor should be construed, that any of the preceding information constitutes prior art against the present disclosure.
In one aspect, the present disclosure relates to a junction box-driver assembly. The junction box-driver assembly include a housing that defines a cavity that is configured to route electrical wiring to a luminaire therethrough and house a driver module therein. The cavity comprises a junction box cavity and a driver cavity that is disposed adjacent to and in fluid communication with the junction box cavity. The junction box cavity is configured to at least one of route the electrical wiring to the luminaire and enclose electrical wiring connections therein. The driver cavity is configured to house the driver module therein. The housing includes a back plate, a junction box cover that is removably coupled to the back plate and configured to cover the junction box cavity, and a driver cavity cover that is removably coupled to the back plate and configured to cover the driver cavity. Further, the junction-box driver assembly includes a mounting strut that is coupled to the housing and configured to releasably lock the junction box-driver assembly to a mounting frame.
In another aspect, the present disclosure relates to a junction box-driver assembly that includes a housing that is configured to route electrical wiring to a luminaire and house a driver module therein. The housing includes a back plate that defines a cavity. The cavity comprises a junction box cavity and a driver cavity that is disposed adjacent to and in fluid communication with the junction box cavity. Further, the junction box-driver assembly includes a junction box cover that is coupled to the back plate and configured to cover the junction box cavity that is configured to at least one of route the electrical wiring to the luminaire and provide a protective space for enclosing wiring connections associated with the electrical wiring to the luminaire. Furthermore, the junction box-driver assembly includes a driver cavity cover that is removably coupled to the back plate and configured to cover the driver cavity that is configured to house the driver module therein.
In yet another aspect, the present disclosure relates to a junction box-driver assembly. The junction box-driver assembly includes a back plate that is configured to route electrical wiring to a luminaire and house an electrical power supply device associated with the luminaire therein. The back plate includes a base wall, and a side wall that extends along at least a portion of a perimeter of the base wall such that one end of the back plate is open. The side wall is substantially perpendicular to the base wall. The base wall and the side wall are arranged such that they define a junction box cavity and a driver cavity that is disposed adjacent to and in fluid communication with the junction box cavity. Further, the junction box-driver assembly includes a junction box cover that is coupled to the back plate and configured to cover the junction box cavity that is configured to route the electrical wiring to the luminaire and provide a protective space for enclosing wiring connections associated with the electrical wiring. Furthermore, the junction box-driver assembly includes a driver cavity cover that is removably coupled to the back plate and configured to cover the driver cavity. Additionally, the junction box-driver assembly includes the electrical power supply device disposed in the driver cavity and comprising a switch interface that extends through a switch opening in the driver cavity cover. The switch interface is configured to allow one or more controllable features of a light module of the luminaire to be field selectable when the light module is coupled to the junction box-driver assembly. The junction box-driver assembly includes a wire trap connector coupled to the side wall of the back plate and configured to receive and retain the electrical wiring into the junction box cavity without using tools. The junction box-driver assembly also includes a mounting strut that is removably coupled to the back plate and configured to releasably lock the junction box-driver assembly to a mounting frame.
These and other aspects, objects, features, and embodiments, will be apparent from the following description and the appended claims.
The foregoing and other features and aspects of the present disclosure are best understood with reference to the following description of certain example embodiments, when read in conjunction with the accompanying drawings, wherein:
The drawings illustrate only example embodiments of the present disclosure and are therefore not to be considered limiting of its scope, as the present disclosure may admit to other equally effective embodiments. The elements and features shown in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the example embodiments. Additionally, certain dimensions or positions may be exaggerated to help visually convey such principles.
In the following paragraphs, a junction box-driver assembly for direct mount luminaires will be described in further detail by way of examples with reference to the attached drawings. In the description, well-known components, methods, and/or processing techniques are omitted or are briefly described so as not to obscure the disclosure. As used herein, the “present disclosure” refers to any one of the embodiments of the disclosure described herein and any equivalents. Furthermore, reference to various feature(s) of the “present disclosure” is not to suggest that all embodiments must include the referenced feature(s).
Even though the present disclosure describes the junction box-driver assembly as being configured for use with direct mount luminaires, one of skill in the art can understand and appreciate that the configurable mounting frame can be used with any other appropriate luminaire, e.g., recessed luminaires mounted in recessed housings, without departing from a broader scope of the present disclosure.
In one example, the junction box-driver assembly of the present disclosure includes a housing that defines a continuous cavity. A first portion of the continuous cavity defined by the housing of the junction box-driver assembly is configured as a driver cavity to house a driver module or an electrical circuit that is used to power a luminaire. A second portion of the continuous cavity is configured as a junction box cavity that provides a protective volume to enclose wire connections therein and/or route electrical wiring to the luminaire therethrough. In certain example embodiments, the cavity may not be continuous and may instead be divided into subcompartments. In some examples, the driver module may include switches that allow a user to select and change various controllable features of the luminaire, such as a color temperature of the light source in the luminaire, lumen output, and/or a radio communication protocol associated with the luminaire. The housing of the junction box-driver assembly also includes knockouts and wire traps that are configured to receive and route electrical conductors therethrough and into the junction box cavity via rigid conduits or flexible cables, respectively. Further, the junction box-driver assembly includes a mounting strut that is removably coupled to the housing. The mounting strut allows the junction box-driver assembly to be releasably locked and/or coupled to a mounting frame, also known as a plaster frame, without the use of any tools.
The junction box-driver assembly of the present disclose in which the junction box and the driver module are configured in a stacked arrangement within a single housing may reduce the footprint that is needed to mount both the junction box and the driver module on a mounting frame. Further, the junction box-driver assembly of the present disclosure allows the driver module to be remotely located and removably coupled to a light module of the luminaire, thereby providing thermal separation and modularity, e.g., allowing the same driver module to drive different light modules. Furthermore, the mounting strut of the junction box-driver assembly provides the ability to toollessly and removably couple the junction box-driver assembly to a mounting frame, which in turn allows a user to easily and quickly install, remove, and replace the junction box-driver assembly as needed in new construction applications or remodel applications where the mounting frame is already mounted in the finished ceiling (i.e., mounting after ceiling in finished).
Moving now to discuss the figures,
In one example, as illustrated in
Even though the figures of the present disclosure illustrate the junction box cavity 504 and the driver cavity 506 as being stacked one on top of the other (
In either case, the housing 102 may include by a back plate 104 that defines the continuous cavity 502 that is open on one side 519 (shown in
The back plate 104 may include pivot slots 557 that are configured to receive pivot flanges 657 of the junction box cover 106. In other example embodiments, the pivot slots 557 may be formed in any other portion of the back plate 104 such that the junction box cover 106 is pivotally coupled thereto and covers the junction box cavity 504 without departing from a broader scope of the present disclosure. Alternatively, the junction box cover 106 may be pivotally or removably arranged with respect to the back plate using any other appropriate mechanism without departing from a broader scope of the present disclosure. The junction box cover 106 may also include a latch member 118 that is removably coupled thereto. The latch member 118 may be configured to releasably latch the junction box cover 106 to the back plate 104 such that: (a) when the junction box cover 106 is latched to the back plate 104 using the latch member 118, the junction box cover 106 covers the junction box cavity 504; and (b) when the latch member 118 is released, the junction box cover 106 pivots about an axis that passes through the pivot slots 557 and opens to expose the junction box cavity 504.
As illustrated in
As illustrated in
Additionally, the side wall 542 includes locking tabs 560 that protrude therefrom. The locking tabs 560 may be configured to engage with coupling slots 802 that are formed in the driver cavity cover 108 to removably couple the driver cavity cover 108 to the back plate 104 by a snap mechanism. The locking tabs 560 may be disposed on the side wall 542 adjacent the second portion 503 of the continuous cavity 502. In other example embodiments, the driver cavity cover 108 may be coupled to the back plate 104 using any other appropriate coupling mechanisms without departing from a broader scope of the present disclosure.
The driver cavity cover 108 may be configured to cover the driver cavity 506 of the junction box-driver assembly 100 and a driver module 702 that may be disposed in driver cavity 506. In addition to the coupling slots 802, the driver cavity cover 108 may include a connector cable routing notch 804 to route a connector cable 173 of the driver module 702 therethrough. For example, as illustrated in
In some example embodiments, the driver module 702 may not include the switch 177 and accordingly, the driver cavity cover 108 may not include the switch opening 806. For example, as illustrated in
Furthermore, as illustrated in
As illustrated in
Furthermore, the mounting strut 190 may include coupling notches 457 that are substantially U-shaped and configured to receive fasteners therethrough to directly mount the junction box-driver assembly 100 to structural elements, such as joists, in the ceiling or to mount the junction box-driver assembly 100 to the mounting frame 1302 using fasteners. In other example embodiments, the coupling notches 457 may have any other appropriate shape without departing from a broader scope of the present disclosure. Additionally, in the example embodiment illustrated in
In one example, the junction box-driver assembly 100 of the present disclosure can be mounted directly to a mounting structure, such as joists, without the use of the mounting strut 190. For example, the housing 102 of the junction box-driver assembly 100 may be coupled to the mounting structure using fasteners that may be inserted through the mounting apertures 541 formed in the back plate 104 of the housing 102. In said example, the junction box-driver assembly 100 may or may not include the mounting strut 190. In other examples, the junction-box driver assembly 100 may be coupled to the mounting frame 1302 or any other appropriate mounting structure using the mounting strut 190. For example, the junction-box driver assembly 100 may be releasably locked to the mounting frame 1302 using the mounting strut 190 or coupled to a mounting structure using fasteners that may be passed through the coupling notches 457 of the mounting strut 190.
The mounting strut 190 allows the junction box-driver assembly 100 to be coupled to the mounting frame 1302 after the ceiling has been finished. For example, once the ceiling is finished, an opening that axially aligns with a light module receiving opening of the mounting frame 1302 may be formed therein. The mounting frame 1302 may be disposed above the ceiling and coupled to the mounting structure before the ceiling is finished. Once the opening has been formed in the ceiling, a user may insert the junction-box driver assembly 100 with the mounting strut 190 through the axially aligned openings of the ceiling and the mounting frame 1302; and the user may couple the mounting strut 190 to the complementary coupling features of the mounting frame 1302 to releasably lock the junction box-driver assembly 100 to the mounting frame 1302.
Even though the present disclosure describes the mounting strut 190 as being removably coupled to the junction box-driver assembly 100, one of skill in the art can understand and appreciate that in other example embodiments, the mounting strut 190 may be built-in or formed integrally with or integrated with the junction box-driver assembly 100 without departing from a broader scope of the present disclosure.
Although the present disclosure is described with reference to example embodiments, it should be appreciated by those skilled in the art that various modifications are well within the scope of the present disclosure. From the foregoing, it will be appreciated that an embodiment of the present disclosure overcomes the limitations of the prior art. Those skilled in the art will appreciate that the present disclosure is not limited to any specifically discussed application and that the embodiments described herein are illustrative and not restrictive. From the description of the example embodiments, equivalents of the elements shown therein will suggest themselves to those skilled in the art, and ways of constructing other embodiments of the present disclosure will suggest themselves to practitioners of the art. Therefore, the scope of the present disclosure is not limited herein.
This application is a continuation application of and claims priority to U.S. patent application Ser. No. 16/707,892 filed on Dec. 9, 2019 and titled “Junction Box-Driver Assembly For Direct Mount Luminaires,” which is a continuation application of and claims priority to U.S. patent application Ser. No. 16/290,414 filed on Mar. 1, 2019 and titled “Junction Box-Driver Assembly For Direct Mount Luminaires,” which issued as U.S. Pat. No. 10,502,404 on Dec. 10, 2019, and which is a continuation-in-part of and claims priority to U.S. patent application Ser. No. 16/014,394 filed in the name of John Bowen and Raymond Janik on Jun. 21, 2018 and titled “Configurable Lighting System,” and which issued as U.S. Pat. No. 10,299,336 on May 21, 2019. The entire contents of the foregoing applications are hereby incorporated herein by reference.
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Number | Date | Country | |
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Child | 16911627 | US | |
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Child | 16290414 | US |