CA2765289A1 - Extruded led light heat sink with attached housing - Google Patents
Extruded led light heat sink with attached housing Download PDFInfo
- Publication number
- CA2765289A1 CA2765289A1 CA2765289A CA2765289A CA2765289A1 CA 2765289 A1 CA2765289 A1 CA 2765289A1 CA 2765289 A CA2765289 A CA 2765289A CA 2765289 A CA2765289 A CA 2765289A CA 2765289 A1 CA2765289 A1 CA 2765289A1
- Authority
- CA
- Canada
- Prior art keywords
- housing
- heat sink
- fixture
- led light
- led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/025—Elongated bases having a U-shaped cross section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
A moulded piece of extruded high finish anodized aluminum for use with high efficiency LED ceramic chips and diodes for the dissipation of the high heat temperatures that said LED light sources can generate. The heat sink draws away said temperatures from the electronic components and LED
light source, thus prolonging the fixture's life span. The heat sink design in question can be used in place of standard T-8 fluorescent light fixtures, or as a retro-fit into an existing housing. Clips will also be included in the heat sink design to allow the device to be installed easily and conveniently by anyone.
light source, thus prolonging the fixture's life span. The heat sink design in question can be used in place of standard T-8 fluorescent light fixtures, or as a retro-fit into an existing housing. Clips will also be included in the heat sink design to allow the device to be installed easily and conveniently by anyone.
Description
DESCRIPTION
FIELD OF THE INVENTION
The present invention relates generally to the field of light emitting diodes (LED). More specifically, the present invention is directed to an integrated heat sink and housing, allowing the use of high power LED ceramic chips and diodes for a variety of ceiling lighting applications.
BACKGROUND OF THE INVENTION
Light emitting diodes (LED) are a well know source of solid state lighting (SSL). LED's have many advantages over traditional sources of lighting such as incandescent and fluorescent bulbs, as they are cheaper to produce, more robust, and require less power. LED's are also more environmentally friendly, as they contain no harmful chemicals such as mercury or lead as more traditional lighting sources do. LED's are especially more desirable as they emit light with high power efficiency over specific colours in the light spectrum. However, LED's traditionally suffer from relatively low light level output since a higher light level output requires greater energy input, resulting in higher heat levels. Since an LED is a semi-conductor device, the higher heat level effects the semi-conductor properties of the LED.
Relatively high heat levels may cause degradation in the performance properties of the LED light source in the form of unpredictable light lose or worse, a complete and total break down in the semi-conductor material resulting in the failure of the LED.
However, there are many applications which require a higher light level output. For interior lighting, specialized bulbs such as fluorescents are used in these applications. In Canada, and throughout the rest of the world, there has been a growing call to ban the use of fluorescent lighting due to their harmful environmental effects. The fluorescent tube is a gas-discharge bulb that uses electricity to excite mercury vapor. The excited mercury atoms produce short-wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light. Other chemicals such as argon, xenon, neon or krypton can also be present in the bulb. When a fluorescent tube is broken, a small amount of the mercury is released into the surrounding environment.
Fluorescent light bulbs are also known to heat up rather quickly from start up. When a bulb needs to be replaced, it is often advisable to wait for a period of time to allow the bulb to cool down before replacing it with another. Another disadvantage to fluorescent bulbs is their typical lifespan.
Most average between 2 to 5 thousand hours, depending on the type of tube being used. As a fluorescent tube nears the end of its life, the light levels it produces drops, and a noticeable flicker can be observed within the bulb itself. Ambient temperature also plays a part in the performance of fluorescent lighting. At lower temperatures, the mercury is in the form of liquid drops. At higher temperatures, self-absorption in the vapor reduces the visible light yield.
Thus, there is a need for a heat sink that allows for a higher level light output. There is also a further need for an LED heat sink and housing that provides the high output without risking the failure that SSL can experience from excessive heat. There is also a further need for an LED heat sink and housing which allows the use of more energy efficient and environmentally friendly LED's in high light level output applications.
SUMMARY OF THE INVENTION
These needs and others may be met by this invention. It is the T-8 fluorescent housing evolved, a revolutionary design that has incorporated the new LED technology in its function, and capable of either being used as a direct replacement of, or as a retro fit into existing T-8 or T-10 housings.
The design allows the invention to act as a heat sink for the electronics that encompass LED light technology. A variety of LED lighting sources can be attached to the mounting surface, including LED light strips, LED ceramic chips and diodes and T-8/T-10 LED light tubes. The wings of the housing also act as a light reflector as well. The heat sink and housing will also include a mounting bracket that allows for easy installation of the device in any setting or application that a traditional T-8 fixture can go.
The invention has also been designed so that it can be daisy-chained to other heat sink housings for a larger application setting such as warehouses and long corridors. The top mounted heat sink housing has been designed to flip open on a built in hinge, allowing for easy servicing and installation of the invention. A locking plate is located directly across from the hinge, allowing a technician to enclose the electronics once the installation/service has been completed.
DESCRIPTION OF THE DRAWINGS
It is to be understood that the foregoing general description and the following detailed description are not limiting but are intended to provide further explanation of the invention claimed. The accompanying drawings, which are incorporated in and constitute part of this specification, are included to illustrate and provide further understanding of the method and system of the invention. Together with the description, the drawings serve to explain the principles of the invention.
Fig. 1 is a perspective view of the heat sink and light housing as seen from the side, directly head on, using the newly developed heat sink according to one example of the present invention.
Fig. 2 is a perspective view of the heat sink cover as seen from head on.
Fig. 3 is a perspective view of the fixture cover as seen from head on.
Fig. 4 is a perspective view of both the heat sink cover and fixture cover as seen from head on.
Fig. 5 is a side angle view of the entire invention with both heat sink cover and fixture cover included.
While the present invention is capable of being daisy-chained to others in larger application settings, there is shown in the drawings and contained herein the preferred embodiment of the invention, as an individual unit. The invention is available in two, four and eight foot sections, but for the purposes of the description and the drawings, the four foot section is being used.
Fig. 1 shows the complete unit (15) of the heat sink housing device. It consists of two pieces, the heat sink back housing bracket (5) and the heat sink housing fixture (16). The two pieces are connected by way of the hinge pin (9) and the mounting surface for the electronics (8) is protected when the back housing bracket (5) is closed and secured with the locking plate (10).
The mounting surface for the LED light sources (1) is 130 mm across, where it then angles outward, creating the reflector (2) wings of the invention.
These reflector wings are 90mm in length, and at the bottom part of the reflector they extend another 20 mm at an angle of 102 degrees. This section is the housing fin (3) and can be used to hang the invention itself.
The back housing bracket (5) has a exterior height of 35.3 mm and an interior height of 30.2 mm. It consists of a plurality of exterior side mounted vanes (6) and a plurality of top mounted vanes (7) The top exterior surface of the heat sink back housing bracket (5) is 120 mm wide, while the top interior surface is 105 mm. The electronics necessary for an LED light are located on the mounting surface for electronics (8), which again is enclosed by the heat sink back housing (5) and secured with the locking plate (10).
Directly below the mounting surface for the LED light source (1) is the lens cover holder (11) for the mounting of the lens cover (12). This cover is in place to protect the integrity of the light source, and to keep out dust, moisture and other elements that may cause damage to the source. At either end of the invention is also found the heat sink side cover (13) and housing side cover (14). The heat sink side cover (13) protects the electronic components found on the mounting surface (8) by covering the ends of the heat sink back bracket (5), while the housing side cover (14) does the same for the light sources found on the mounting surface (1).
FIELD OF THE INVENTION
The present invention relates generally to the field of light emitting diodes (LED). More specifically, the present invention is directed to an integrated heat sink and housing, allowing the use of high power LED ceramic chips and diodes for a variety of ceiling lighting applications.
BACKGROUND OF THE INVENTION
Light emitting diodes (LED) are a well know source of solid state lighting (SSL). LED's have many advantages over traditional sources of lighting such as incandescent and fluorescent bulbs, as they are cheaper to produce, more robust, and require less power. LED's are also more environmentally friendly, as they contain no harmful chemicals such as mercury or lead as more traditional lighting sources do. LED's are especially more desirable as they emit light with high power efficiency over specific colours in the light spectrum. However, LED's traditionally suffer from relatively low light level output since a higher light level output requires greater energy input, resulting in higher heat levels. Since an LED is a semi-conductor device, the higher heat level effects the semi-conductor properties of the LED.
Relatively high heat levels may cause degradation in the performance properties of the LED light source in the form of unpredictable light lose or worse, a complete and total break down in the semi-conductor material resulting in the failure of the LED.
However, there are many applications which require a higher light level output. For interior lighting, specialized bulbs such as fluorescents are used in these applications. In Canada, and throughout the rest of the world, there has been a growing call to ban the use of fluorescent lighting due to their harmful environmental effects. The fluorescent tube is a gas-discharge bulb that uses electricity to excite mercury vapor. The excited mercury atoms produce short-wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light. Other chemicals such as argon, xenon, neon or krypton can also be present in the bulb. When a fluorescent tube is broken, a small amount of the mercury is released into the surrounding environment.
Fluorescent light bulbs are also known to heat up rather quickly from start up. When a bulb needs to be replaced, it is often advisable to wait for a period of time to allow the bulb to cool down before replacing it with another. Another disadvantage to fluorescent bulbs is their typical lifespan.
Most average between 2 to 5 thousand hours, depending on the type of tube being used. As a fluorescent tube nears the end of its life, the light levels it produces drops, and a noticeable flicker can be observed within the bulb itself. Ambient temperature also plays a part in the performance of fluorescent lighting. At lower temperatures, the mercury is in the form of liquid drops. At higher temperatures, self-absorption in the vapor reduces the visible light yield.
Thus, there is a need for a heat sink that allows for a higher level light output. There is also a further need for an LED heat sink and housing that provides the high output without risking the failure that SSL can experience from excessive heat. There is also a further need for an LED heat sink and housing which allows the use of more energy efficient and environmentally friendly LED's in high light level output applications.
SUMMARY OF THE INVENTION
These needs and others may be met by this invention. It is the T-8 fluorescent housing evolved, a revolutionary design that has incorporated the new LED technology in its function, and capable of either being used as a direct replacement of, or as a retro fit into existing T-8 or T-10 housings.
The design allows the invention to act as a heat sink for the electronics that encompass LED light technology. A variety of LED lighting sources can be attached to the mounting surface, including LED light strips, LED ceramic chips and diodes and T-8/T-10 LED light tubes. The wings of the housing also act as a light reflector as well. The heat sink and housing will also include a mounting bracket that allows for easy installation of the device in any setting or application that a traditional T-8 fixture can go.
The invention has also been designed so that it can be daisy-chained to other heat sink housings for a larger application setting such as warehouses and long corridors. The top mounted heat sink housing has been designed to flip open on a built in hinge, allowing for easy servicing and installation of the invention. A locking plate is located directly across from the hinge, allowing a technician to enclose the electronics once the installation/service has been completed.
DESCRIPTION OF THE DRAWINGS
It is to be understood that the foregoing general description and the following detailed description are not limiting but are intended to provide further explanation of the invention claimed. The accompanying drawings, which are incorporated in and constitute part of this specification, are included to illustrate and provide further understanding of the method and system of the invention. Together with the description, the drawings serve to explain the principles of the invention.
Fig. 1 is a perspective view of the heat sink and light housing as seen from the side, directly head on, using the newly developed heat sink according to one example of the present invention.
Fig. 2 is a perspective view of the heat sink cover as seen from head on.
Fig. 3 is a perspective view of the fixture cover as seen from head on.
Fig. 4 is a perspective view of both the heat sink cover and fixture cover as seen from head on.
Fig. 5 is a side angle view of the entire invention with both heat sink cover and fixture cover included.
While the present invention is capable of being daisy-chained to others in larger application settings, there is shown in the drawings and contained herein the preferred embodiment of the invention, as an individual unit. The invention is available in two, four and eight foot sections, but for the purposes of the description and the drawings, the four foot section is being used.
Fig. 1 shows the complete unit (15) of the heat sink housing device. It consists of two pieces, the heat sink back housing bracket (5) and the heat sink housing fixture (16). The two pieces are connected by way of the hinge pin (9) and the mounting surface for the electronics (8) is protected when the back housing bracket (5) is closed and secured with the locking plate (10).
The mounting surface for the LED light sources (1) is 130 mm across, where it then angles outward, creating the reflector (2) wings of the invention.
These reflector wings are 90mm in length, and at the bottom part of the reflector they extend another 20 mm at an angle of 102 degrees. This section is the housing fin (3) and can be used to hang the invention itself.
The back housing bracket (5) has a exterior height of 35.3 mm and an interior height of 30.2 mm. It consists of a plurality of exterior side mounted vanes (6) and a plurality of top mounted vanes (7) The top exterior surface of the heat sink back housing bracket (5) is 120 mm wide, while the top interior surface is 105 mm. The electronics necessary for an LED light are located on the mounting surface for electronics (8), which again is enclosed by the heat sink back housing (5) and secured with the locking plate (10).
Directly below the mounting surface for the LED light source (1) is the lens cover holder (11) for the mounting of the lens cover (12). This cover is in place to protect the integrity of the light source, and to keep out dust, moisture and other elements that may cause damage to the source. At either end of the invention is also found the heat sink side cover (13) and housing side cover (14). The heat sink side cover (13) protects the electronic components found on the mounting surface (8) by covering the ends of the heat sink back bracket (5), while the housing side cover (14) does the same for the light sources found on the mounting surface (1).
Claims (8)
1. A heat sink and housing for use in conjunction with a light emitting diode (LED) light source, the heat sink and housing comprising of:
two distinctive pieces, a heat sink back housing and a light fixture housing, joined together by a hinge pin and secured in place by a locking plate; the interior surface of the fixture housing dedicated to the LED light source; the exterior of the fixture housing dedicated to the electrical components that comprise the LED light.
two distinctive pieces, a heat sink back housing and a light fixture housing, joined together by a hinge pin and secured in place by a locking plate; the interior surface of the fixture housing dedicated to the LED light source; the exterior of the fixture housing dedicated to the electrical components that comprise the LED light.
2. The heat sink and housing of claim 1, wherein the exterior of the fixture housing is covered by the heat sink back housing; the fixture housing having an angled extension used as a reflector; another angled extension from end of the reflector used as a fin for hanging the invention and heat dissipation.
3. The heat sink and housing of claim 1, wherein the heat sink back housing has a rectangle shape consisting of an inner and outer surface;
the ends of the rectangle shape enclosed with a heat sink side cover;
the ends of the fixture housing enclosed with a housing side cover.
the ends of the rectangle shape enclosed with a heat sink side cover;
the ends of the fixture housing enclosed with a housing side cover.
4. The heat sink and housing of claim 1, wherein the heat sink back housing and fixture housing are fabricated from highly thermal conductive material.
5. The heat sink and housing of claim 4, wherein the highly thermal conductive material is high finished anodized aluminum.
6. The heat sink and housing of claim 1, wherein the heat sink back housing comprises a rectangle shape and contains two side walls and a top, each comprising a plurality of vanes on the exterior, and fabricated from highly thermal anodized aluminum; joined to the fixture housing by a hinge pin and secured in place with a locking plate, wherein both the hinge pin, locking plate and fixture housing are also made of highly thermal anodized aluminum.
7. The heat sink and housing of claim 6, wherein the fixture housing contains a lens cover holder.
8. The heat sink and housing of claim 7, wherein the lens cover holder is designed to hold a lens cover, preventing dust, moisture and other elements from interfering with the LED light source and electronics and sealed in place with a specialised glass to aluminum silicone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2765289A CA2765289A1 (en) | 2012-01-20 | 2012-01-20 | Extruded led light heat sink with attached housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2765289A CA2765289A1 (en) | 2012-01-20 | 2012-01-20 | Extruded led light heat sink with attached housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2765289A1 true CA2765289A1 (en) | 2013-07-20 |
Family
ID=48794300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2765289A Abandoned CA2765289A1 (en) | 2012-01-20 | 2012-01-20 | Extruded led light heat sink with attached housing |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2765289A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9222651B1 (en) | 2015-01-28 | 2015-12-29 | Luminii Corp. | Modular LED light Fixture |
| EP3260773A1 (en) * | 2016-06-22 | 2017-12-27 | Self Electronics Co., Ltd. | Flipping installation device for led strip lighting |
| US10317066B2 (en) | 2016-04-25 | 2019-06-11 | Lucifer Lighting Company | Recesssed downlight fixture with heatsink |
| US10408389B2 (en) | 2017-04-07 | 2019-09-10 | Elmer A Wessel | Modular power manifold for tube lights |
-
2012
- 2012-01-20 CA CA2765289A patent/CA2765289A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9222651B1 (en) | 2015-01-28 | 2015-12-29 | Luminii Corp. | Modular LED light Fixture |
| US10317066B2 (en) | 2016-04-25 | 2019-06-11 | Lucifer Lighting Company | Recesssed downlight fixture with heatsink |
| EP3260773A1 (en) * | 2016-06-22 | 2017-12-27 | Self Electronics Co., Ltd. | Flipping installation device for led strip lighting |
| US10408389B2 (en) | 2017-04-07 | 2019-09-10 | Elmer A Wessel | Modular power manifold for tube lights |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20180122 |