DESC:FIELD OF THE INVENTION

The present disclosure relates to lighting assemblies, and more particularly to a heat sink for a lighting assembly.

BACKGROUND

Generally, lighting assemblies such as down lights are installed in various places such as residential buildings and commercial buildings. The down lights are directly installed onto a wall or ceiling of the building. An existing down light includes a heat sink, a lens, a reflector, and a light source adapted to generate the illumination. Herein, the heat sink absorbs the heat generated by the light source and dissipates the absorbed heat to the surrounding air.

Currently, the existing heat sink is extended on one side of the light assembly to increase the surface area in contact with air to enhance the dissipation of the heat. In such scenarios, the length and the height of the existing heat sink are required to be increased based on the required dissipation of the heat, which consumes more material and increases the overall weight and size of the lighting assembly. This increases the overall manufacturing cost of the lighting assembly. Further, the light assembly with the existing heat sink requires more space for installation. Moreover, the existing design of the heat sink is asymmetrical. This impacts the aesthetics of the light assembly and makes the handling of the heat sink difficult for the operators during the installation.

SUMMARY

This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.

The present disclosure relates to a heat sink for a lighting assembly. The heat sink may include a base, a sidewall, a rim, and a plurality of fins. The base may include a protruded member extending from the base. The sidewall orthogonally extends from a periphery of the base to form a hollow portion adapted to be supported on a mounting member of the light assembly. The rim orthogonally extends from the side wall. The plurality of fins extends symmetrically between the protruded member and an edge of the rim and may be adapted to dissipate a heat generated by a light source of the lighting assembly.

Further, the present disclosure relates to a lighting assembly. The lighting assembly may include a light source, a mounting member, and a heat sink. The light source may be adapted to generate illumination. The mounting member may be positioned adjacent to the light source and adapted to support the light source. The heat sink may be adapted to dissipate a heat generated by the light source. The heat sink may include a base, a sidewall, a rim, and a plurality of fins. The base may include a protruded member extending from the base. The sidewall orthogonally extends from a periphery of the base to form a hollow portion adapted to be supported on a mounting member of the light assembly. The rim orthogonally extends from the side wall. The plurality of fins extends symmetrically between the protruded member and an edge of the rim and may be adapted to dissipate a heat generated by a light source of the lighting assembly.

The lighting assembly of the present disclosure, includes the compact heat sink which requires lesser space for installation, as the plurality of fins of the heat sink are symmetrical formed with respect to the protruded member. This makes the installation and assembly of the lighting assembly which saves the time and effort associated with the installation of the lighting assembly. The symmetrical design of the plurality of fins of the heat sink reduces the length, height and size of the lighting assembly, which further reduces the overall weight of the lighting assembly. This also reduces the manufacturing cost of the lighting assembly.

To further clarify the advantages and features of the present disclosure, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

Figure 1 illustrates an exploded view of a lighting assembly, according to an embodiment of the present disclosure;

Figure 2(a) illustrates a perspective view of a heat sink of the lighting assembly, according to an embodiment of the present disclosure;

Figure 2(b) illustrates a top view of the heat sink of the lighting assembly, according to an embodiment of the present disclosure; and

Figure 2(c) illustrates a bottom view of the heat sink of the lighting assembly, according to an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, a plurality of components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which invention belongs. The system and examples provided herein are illustrative only and not intended to be limiting.

For example, the term “some” as used herein may be understood as “none” or “one” or “more than one” or “all.” Therefore, the terms “none,” “one,” “more than one,” “more than one, but not all” or “all” would fall under the definition of “some.” It should be appreciated by a person skilled in the art that the terminology and structure employed herein is for describing, teaching, and illuminating some embodiments and their specific features and elements and therefore, should not be construed to limit, restrict, or reduce the spirit and scope of the present disclosure in any way.

For example, any terms used herein such as, “includes,” “comprises,” “has,” “consists,” and similar grammatical variants do not specify an exact limitation or restriction, and certainly do not exclude the possible addition of a plurality of features or elements, unless otherwise stated. Further, such terms must not be taken to exclude the possible removal of the plurality of the listed features and elements, unless otherwise stated, for example, by using the limiting language including, but not limited to, “must comprise” or “needs to include.”

Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “plurality of features” or “plurality of elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “plurality of” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be plurality of...” or “plurality of elements is required.”

Unless otherwise defined, all terms and especially any technical and/or scientific terms, used herein may be taken to have the same meaning as commonly understood by a person ordinarily skilled in the art.

Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining plurality of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.

Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, plurality of particular features and/or elements described in connection with plurality of embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although plurality of features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.

Embodiments of the present disclosure will be described below in detail with reference to the accompanying drawings.

Figure 1 illustrates an exploded view of a lighting assembly 100, according to an embodiment of the present disclosure. Referring to Figure 1, the lighting assembly 100 may be installed in residential and commercial buildings to provide illumination. In an embodiment, the lighting assembly 100 may be embodied as a down light assembly 100 which may be installed on an installation platform such as a wall or ceiling of the building via recess mounting. In an embodiment, the multiple lighting assemblies may be installed in a continuous manner, such that continuous illumination may be achieved throughout a certain length of the building.

In an embodiment, the lighting assembly 100 may include, but is not limited to, a light source 102, a lens 104, a lens holder 106, a heat sink 108, a mounting member 110, a pair of brackets 112, a pair of mounting springs 114, a reflector 116, a ceiling ring 118, and a pair of clips 120. The light source 102 may be adapted to generate illumination. In an embodiment, the light source 102 may be embodied as a Chip-On-Board (COB) light which includes multiple Light-Emitting Diode (LED) chips mounted on a thermally efficient substrate placed below a uniform phosphor coating. Herein, a COB holder 107 may be adapted to accommodate the COB light.

In an embodiment, the heat sink 108 may be positioned behind the light source 102. Further, the lens 104 may be positioned in front of the light source 102. The lens 104 may be adapted to transmit the illumination received from the light source 102, such that the transmitted illumination may be dispersed through the reflector 116. Herein, the lens holder 106 may be adapted to hold and/or secure the lens 104.

The ceiling ring 118 may be adapted to be aligned with the surface of the ceiling and/or the wall to mount the lighting assembly 100. The ceiling ring 118 may be coupled with the mounting member 110 via the pair brackets 112. Herein, an end of each bracket 112 may be coupled with the mounting member 110 and another end may be coupled with the ceiling ring 118. In an embodiment, each bracket 112 may be coupled with the ceiling ring 118 and the mounting member 110 via a plurality of fasteners.

The pair of mounting springs 114 may be adapted to be engaged with the ceiling and/or the wall to mount the lighting assembly 100. The implementation of mounting springs 114 provides an easy installation/mounting of the lighting assembly 100. Further, the pair of clips 120 may be adapted to facilitate the installation/mounting of the lighting assembly 100 onto the ceiling and/or the wall.

The mounting member 110 may be adapted to support the lens 104 and the heat sink 108. Herein, the implementation of the mounting member 110 may be responsible for the mounting of the pair of brackets 112, the lens 104, and the pair of mounting springs 114 without any metallic plate. Further, the heat sink 108 may be adapted to absorb a heat generated during the operation of the light source 102, and further dissipate the heat to the atmosphere. The implementation of the heat sink 108 ensures the smooth working of the lighting assembly 100. Constructional and functional details of the heat sink 108 are explained in the subsequent paragraphs with reference to Figures 2-4.

Figure 2(a) illustrates a perspective view of the heat sink 108 of the lighting assembly 100, according to an embodiment of the present disclosure. Figure 2(b) illustrates a top view of the heat sink 108 of the lighting assembly 100, according to an embodiment of the present disclosure. Figure 2(c) illustrates a bottom view of the heat sink 108 of the lighting assembly 100, according to an embodiment of the present disclosure. Referring to Figures 2(a), 2(b), and 2(c), the heat sink 108 may include, but is not limited, a base 124, a sidewall 128, a rim 132, and a plurality of fins 134. The base 124 may include a protruded member 126 extending from the base 124.

In an embodiment, the protruded member 126 extends from the center of the base 124 in an orthogonal orientation, in an opposite direction relative to the sidewall 128. The base 124 may include a first face 124-1 and a second face 124-2 opposite to the first face 124-1. The first face 124-1 may be adapted to support the protruded member 126 and the plurality of fins 134. The sidewall 128 orthogonally extends from the second face 124-2 and the hollow portion 130 is formed between the second face 124-2 and sidewall 128. Further, the at least one of base 124 and the rim 132 may include a first opening 136 adapted to route electric wires connected to the light source 102. In an embodiment, electric wires may be further electrically connected to a power source to supply the power to the light source 102.

The sidewall 128 orthogonally extends from a periphery of the base 124 to form a hollow portion 130 adapted to be supported on a mounting member 110 of the lighting assembly 100. In an embodiment, the hollow portion 130 has a cylindrical profile and is adapted to be secured with the mounting member 110. The rim 132 orthogonally extends from the sidewall 128.

The plurality of fins 134 extends symmetrically between the protruded member 126 and an edge of the rim 132. The plurality of fins 134 may be adapted to absorb the heat generated by a light source 102 and dissipate the absorbed heat into the atmosphere. In one embodiment, the at least two fins from the plurality of fins 134 may be formed at a gap from the protruded member 126, such that the electric wires may be routed through the gap.

The at least one of the plurality of fins 134 may include a second opening 138 adapted to hold a tie strap to tie the routed wire to the fin 134. In an embodiment, the plurality of fins 134 may be formed of a metallic material, without deprting from the scope of the present disclosure. In another embodiment, the plurality of fins 134 may be formed of a polymeric material, without deprting from the scope of the present disclosure.

The lighting assembly 100 of the present disclosure, includes the compact heat sink 108 which requires lesser space for installation, as the plurality of fins 134 of the heat sink are symmetrical formed with respect to the protruded member 126. This makes the installation and assembly of the lighting assembly 100 which saves the time and effort associated with the installation of the lighting assembly 100. The symmetrical design of the plurality of fins 134 of the heat sink 108 reduces the length, height and size of the lighting assembly 100, which further reduces the overall weight of the lighting assembly 100. This also reduces the manufacturing cost of the lighting assembly 100. Further, the first opening 136 and the second opening 138 may be provide to facilitate the tieing and securing of the electric wires. Thus, no separate components are required to facilitate the tieing and routing of the electric wires.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one ordinary skilled in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.

While specific language has been used to describe the present subject matter, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method to implement the inventive concept as taught herein. The drawings and the forgoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.
,CLAIMS:1. A heat sink (108) for a lighting assembly (100), comprising:
a base (124) having a protruded member (126) extending from the base (124);
a sidewall (128) orthogonally extending from a periphery of the base (124) to form a hollow portion (130) adapted to be supported on a mounting member (110) of the lighting assembly (100);
a rim (132) orthogonally extending from the sidewall (128); and
a plurality of fins (134) extending symmetrically between the protruded member (126) and an edge of the rim (132) and adapted to dissipate a heat generated by a light source (102) of the lighting assembly (100).

2. The heat sink (108) as claimed in claim 1, wherein the protruded member (126) extends from the center of the base (124) in an orthogonal orientation, in an opposite direction relative to the sidewall (128).

3. The heat sink (108) as claimed in claim 1, wherein the base (124) comprises:
a first face (124-1) adapted to support the protruded member (126) and the plurality of fins (134); and
a second face (124-2) opposite to the first face (124-1), wherein the sidewall (128) orthogonally extends from the second face (124-2) and the hollow portion (130) is formed between the second face (124-2) and sidewall (128).

4. The heat sink (108) as claimed in claim 1, wherein the hollow portion (130) has a cylindrical profile and is adapted to be secured with the mounting member (110).

5. The heat sink (108) as claimed in claim 1, wherein:
the at least one of base (124) and the rim (132) comprises a first opening (136) adapted to route electric wires electrically connecting with the light source (102); and
the at least one of the plurality of fins (134) comprises a second opening (138) adapted to hold an insulator tie adapted to tie the routed wire.

6. A lighting assembly (100), comprising:
a light source (102) adapted to generate illumination;
a mounting member (110) positioned adjacent to the light source (102) and adapted to support the light source (102); and
a heat sink (108) adapted to dissipate a heat generated by the light source (102), the heat sink (108) comprising:
a base (124) having a protruded member (126) extending from the base (124);
a sidewall (128) orthogonally extending from a periphery of the base (124) to form a hollow portion (130) adapted to be supported on the mounting member (110) of the lighting assembly (100);
a rim (132) orthogonally extending from the sidewall (128); and
a plurality of fins (134) extending symmetrically between the protruded member (126) and an edge of the rim (132) and adapted to dissipate a heat generated by the light source (102) of the lighting assembly (100).

7. The lighting assembly (100) as claimed in claim 6, wherein the protruded member (126) extends from the center of the base (124) in an orthogonal orientation, in an opposite direction relative to the sidewall (128).

8. The lighting assembly (100) as claimed in claim 6, wherein the base (124) comprises:
a first face (124-1) adapted to support the protruded member (126) and the plurality of fins (134); and
a second face (124-2) opposite to the first face (124-1), wherein the sidewall (128) orthogonally extends from the second face (124-2) and the hollow portion (130) is formed between the second face (124-2) and sidewall (128).

9. The lighting assembly (100) as claimed in claim 6, wherein the hollow portion (130) has a cylindrical profile and is adapted to be secured with the mounting member (110).

10. The lighting assembly (100) as claimed in claim 6, wherein:
the at least one of base (124) and the rim (132) comprises a first opening (136) adapted to route electric wires electrically connecting with the light source (102); and
the at least one of the plurality of fins (134) comprises a second opening (138) adapted to hold an insulator tie adapted to tie the routed wire.