ZA200805168B - Ceiling light fixture adaptable to various lamp assemblies - Google Patents
Ceiling light fixture adaptable to various lamp assemblies Download PDFInfo
- Publication number
- ZA200805168B ZA200805168B ZA200805168A ZA200805168A ZA200805168B ZA 200805168 B ZA200805168 B ZA 200805168B ZA 200805168 A ZA200805168 A ZA 200805168A ZA 200805168 A ZA200805168 A ZA 200805168A ZA 200805168 B ZA200805168 B ZA 200805168B
- Authority
- ZA
- South Africa
- Prior art keywords
- light fixture
- light
- channel
- lamp assembly
- board
- Prior art date
Links
- 230000000712 assembly Effects 0.000 title claims description 11
- 238000000429 assembly Methods 0.000 title claims description 11
- 230000017525 heat dissipation Effects 0.000 claims description 14
- 230000000717 retained effect Effects 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding 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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
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This invention relates to a ceiling light fixture that is adaptable to various lamp assemblies without modification of the structure thereof so that discarding an original but still workable light fixture in the course of replacing the traditional more power-consuming light sources with a newly-developed, less power-consuming light source is not necessary and the amount of waste caused by discarding the original light fixture is substantially reduced.
The world is now in the beginning of the twenty-first century and people are now more aware of the fragile and delicate balance between the amount of energy consumed and the global weather than those living in the years of industrial revolution and modem man realises that the Earth will die and become hostile to life forms very soon due to depletion of resources and deterioration of ecological environment if low energy consuming technology is not immediately taken in all respects of the human society to overcome all sorts of problems caused by the current energy-consuming based:living model.
One of the major factors that consume a great amount of energy and cause significant change to the Earth weather is electricity based lighting. Most of the electrical power consumed today is obtained from fossil energy and a minor port of the electrical power is obtained otherwise. In generating light to light up the housing and surroundings, heat is — _— - SACom002doc. - - . - - Ee — - - . - — -
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- og 1120007 “5159 also caused and dissipated to the surroundings. The total amount of heat generated by lighting is huge. This is even worse for the traditional lighting technologies which do not have a high efficiency conversion between electricity and light and need to consume more electricity to give the same level of brightness. This is generally a waste of energy and a source of heat leading to warming of the world. Thus, a lot of countries of the world set limits on the use of high power-consuming lighting devices and encourage replacement of the traditional high power-consuming lighting devices with newly-developed less power consuming light sources with an attempt to alleviate the damage caused by the lighting that is required for daily living.
The high efficiency, less power-consuming light source developed by modern technology is generally set toward using electronic lighting device that is powered by low-voltage electronic circuits to meet the regular needs of daily lighting. One of the technologies becoming available nowadays is the brightness-enhanced light-emitting diode (LED), which is gradually replacing traditional incandescent lamps, such as traffic lights and is also becoming available for household lighting.
A more mature technology is to be found in fluorescent lamps which are considered less power-consuming lighting devices. The fluorescent lamp, although having problems of pollution due to the fluorescent agent contained therein and other problems, such as relatively fragile glass so that broken tubes tend to have sharp edge that might inflict serious cuts, is still widely used in many areas and countries due to their lower consumption of power.
However, with the recent more severe warming of the Earth and the gradual depletion of natural resources, the complete use of light-emitting diode-based light sources to replace traditional light sources, including incandescent and fluorescent, is clearly appropriate.
With such a trend of total replacement of fluorescent with the light-emitting diode light sources, the ceiling mounted light fixtures conventionally used with traditional light sources must also be discarded. This is clearly a waste.
This invention is based on the inventive insight that, in accordance with this trend, a ceiling mounted light fixture, such as one that is commonly used in suspended ceiling systems (for example in offices), must be of a design that allows use with both traditional light sources, such as fluorescent tubes, and the newly-developed electronic light
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B87 05149 4 sources, such as light-emitting diodes, so that during the transition from the fluorescent tube to the light-emitting diode, no replacement of the original light fixture is necessary and the waste that might have been produced is eliminated.
This invention seeks to address this requirement by providing a novel light fixture that is adaptable to various light sources in order to overcome the problems induced during the transition from the traditional light source to the newly-developed light sources.
The primary purpose of the present invention is to provide a light fixture and preferably a ceiling light fixture adapted for interchangeable use with various lamp assemblies.
According to the invention, a light fixture adapted for interchangeable use with a plurality of lamp assemblies is provided, the fixture comprising: a base housing defining at least one elongated channel; the or each channel having a bottom wall including means to mount a first lamp assembly; the or each channel having means to mount a second lamp assembly; and the first and second lamp assembly mounting means being positioned such that, in use, a second lamp assembly mounted in the light fixture fits within the channel, clear of a first lamp assembly mounted on the base of the channel.
The light fixture is preferably a ceiling light fixture adapted for interchangeable use with a plurality of lamp assemblies, the ceiling light fixture comprising: a base housing defining at least one elongated channel; the or each channel having a bottom wall including means to mount a first lamp assembly; the or each channel having means to mount a second lamp assembly; and the first and second lamp assembly mounting means being positioned such that, oo Co _ _ SACom002.doc oo 3 :
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Fe2008/ 05168 in use, a second lamp assembly mounted in the light fixture fits within the channel, clear of a first lamp assembly mounted on the base of the channel.
A light-transmitting cover panel is preferably provided corresponding to each elongated channel and having edge plates forming tenon fitting structures for closing the opening of the channel.
The present invention provides a light fixture that offers advantages that both the traditional fluorescent lamp tubes and the newly-developed electronic light sources, such as a light-emitting diode base light source can be used therein. Thus, a smooth transition from the traditional light source to the nove! light source can be realised in the evolution of lighting.
Concern about the extreme engineering work of simultaneously replacing the traditional light source with the novel light source is eliminated and any impact to an environmentally protective lighting policy can be minimised.
Most companies or organisations are operated in such a way that they keep a stock of consumables for office facilities, such as fluorescent lamp tubes or lamp bulbs to allow for efficient repair of a malfunctioning lamps or lights due to a broken lamp tube or bulb.
Thus, even if legislation prohibits future use and sale or importation of traditional fluorescent tubes, those tubes that are already in stock at these companies or organisations cannot immediately replaced by electronic light sources. Such a replacement can only be done in a gradual, step-by-step process over the course of time.
Thus, the light fixture of the invention selectively allows a first, electronic light source based lamp assembly carrier board to be removably received in the mounting frame and clamped and secured by barbs for instance, to have the electronic light source exposed through an elongate slot for irradiating light toward side walls of the elongated channel and the light-transmitting cover panel and, alternatively, allows a lamp tube end seat to be fitted and retained in the lamp tube end seat fitting hole to set and fix a lamp tube of a second lamp assembly in the elongate slot to realise interchangeable use of the ceiling light fixture with different lamp assemblies.
In this way, there is no need to discard the original light fixture in adapting different, new light sources and the amount of waste produced by discarding the original, but still workable, light fixture can be substantially reduced. — - ello. SACom.002.doc. . _ = I. - — SL -
PFT8 Ref PC.4791.C&J - - - - - -- -- - - - .
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The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
The invention will be further described with reference to the accompanying drawings in which:
Figure 1 shows a perspective view of a ceiling light fixture constructed in accordance with the present invention;
Figure 2 shows an exploded view of the ceiling light fixture of the present invention in front perspective;
Figure 3 shows an exploded view of the ceiling light fixture of the present invention in rear perspective;
Figure 4 shows a cross-sectional view of the ceiling light fixture in an assembled form;
Figure 5 shows an exploded view of the ceiling light fixture in accordance with the present invention carrying a lamp assembly carrier board of a different type;
Figure 6 shows an exploded view of the lamp assembly carrier board of Figure 5;
Figure 7 shows a cross-sectional view of the ceiling light fixture in an assembled form carrying the lamp assembly carrier board of Figure 5; “ese = =. - —-- . SAComO002doc - — S- - - - - - —— - - -
PFTB Ref PC.4791.C&J ) tT - Tr - - --
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Figure 8 shows an exploded view, in rear perspective, of a portion of the ceiling light fixture in accordance with the present invention carrying a lamp assembly carrier board of a further different type; :
Figure 9 shows a perspective view of a lamp assembly carrier board of yet a further different type; and
Figure 10 is a perspective view, from the rear, of the lamp assembly carrier board of Figure 9.
The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
Figure 1 shows a perspective view of a ceiling light fixture constructed in accordance with the present invention. The ceiling light fixture, as shown, has an exterior appearance that looks similar to a currently available ceiling light fixture.. However, the ceiling light fixture of the present invention has a distinct interior structure, as particularly illustrated in Figure 2, which shows an exploded view of the ceiling light fixture of the present invention,
Figure 3, which also shows an exploded view of the ceiling light fixture, but from a different perspective, and Figure 4, which shows a cross-sectional view of the ceiling light fixture in an assembled form.
The ceiling light fixture of the present invention comprises a rectangular base housing 10 defining therein at least one elongated channels 11, 12 having a trapezoidal cross-section and a light-transmitting cover panel 20 that has a structure consisting edge plates carrying tenon fittings for covering each channel opening 11A, 12A. It is noted that only two trapezoidal-cross-section channels 11, 12 are included in the ceiling light fixture shown in
Figures 1 and 2, but three such channels are included in the ceiling light fixture shown in
Figure 3. It is also noted although difference in the number of trapezoidal-cross-section channels is present between Figures 1, 2 and Figure 3, the arrangement of repeating the
CL _ oo _ SACom 002.doc . . oo
PFTB Ref PC.4791.C&J - - - TT - - -- - - - - — —
® =°2008/ 215168 channel is exactly the same. As shown in the drawings, the edge plate tenon fitting structure of the light-transmitting cover panel 20 comprises outside-barbed retention bars 21, 22, which are formed on the edge plates of the cover panel 20 at locations vertically corresponding to fitting holes 11C, 12C formed in a connection wall 11B, 12B arranged between the channel openings 11A, 12A that are adjacent to each otherin order to fit into : the fitting holes 11C, 12C. With the outside-barbed retention bars 21, 22 fitted into the corresponding fitting holes 11C, 12C, the cover panels 20 are positioned and retained on and cover the channel openings 11A, 12A, respectively. The cover panel 20 also forms in a surface thereof, at locations close to and spaced from side edges thereof a predetermined distance, through holes 23, 24. The channel opening 11A, 12A is provided, in side lips thereof, with locking holes11D, 12D at locations corresponding to the through holes 23, 24 whereby bolts or screws are allowed to extend through the through holes 23, 24 for engaging and being tightened to the locking holes 11D, 12D to tightly secure the cover panel 20 to the channel opening 11A, 12A.
The cover panel 20 forms, on a surface thereof facing the trapezoidal-cross-section channel 11, 12, straight light-splitting racks 25 on opposite edge sections thereof, and also forms, on a central major area thereof, light-deflecting grid cells 26, 27, each being inward concaved. The trapezoidal-cross-section elongated channel 11, 12 has opposite sloped side walls each forming light-reflecting grid cells 11E, 12E, each being convex toward the interior of the channel to enhance the effect of light transmission and light diffraction. Further, the trapezoidal-cross-section elongated channel 11, 12 has a bottom wall 11G, 12G in which an elongate slot 11F, 12F is formed. The bottom wall 11G, 12G of the trapezoidal-cross-section elongated channel 11, 12 that forms the elongate slot 11F, 12F forms, on a back side thereof, a circumferential raised mounting frame 11K, 12K. The mounting frame 11K, 12K comprises a plurality of barbs 11H, 111, 12H, 12] extending from suitable locations on a top of the mounting frame 11K, 12K. The bottom wall 11G, 12G of the trapezoidal-cross-section elongated channel 11, 12 forms, at a suitable location on each lengthwise end with respect to the elongate slot 11F, 12F, a lamp tube end seat fitting hole 11J, 12J. Thus, an electronic light source based lamp assembly carrier board 30 is allowed to locate in the mounting frame 11K, 12K with the barbs 11H, 111, 12H, 12I clamping the lamp assembly carrier board 30 to have the electronic light source exposed through the elongate slot 11F, 12F for irradiating light toward the side walls of the trapezoidal-cross-section elongated channel 11, 12 and the light-transmitting cover panel 20. As shown in Figures 2, 3, and 4, the lamp assembly
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@® =*9%08/ 05168 carrier board 30 comprises a rectification circuit board 31 having a surface on which a plurality of light-emitting diodes 34, 35, 36 is disposed to serve as the electronic light source, a parallel-connection wiring board 32 having a surface forming connection between contacts of the rectification circuit board 31 and external wirings, and a heat dissipation board 33 that physically engages a back side of the parallel-connection wiring board 32, which are stacked over and bonded to each other. A surface of the heat dissipation board 33 that is opposite to the one stacking over the parallel-connection wiring board 32 is clamped by the barbs 11H, 111, 12H, 12I for fixing.
Alternatively, as shown in Figure 5, which illustrates an exploded view of the ceiling light fixture in accordance with the present invention carrying a lamp assembly carrier board of a different type, Figure 6, which illustrates an exploded view of the lamp assembly carrier board of said different type, and Figure 7, which illustrates a cross-sectional view of the ceiling light fixture in an assembled form, the lamp assembly carrier board of said different type, which is also designated with reference numeral 30 for simplicity, comprises a parallel-connection wiring board 46 having a surface forming bores 41, 42 for respectively receiving and fixing therein a number of twisting type sockets 43, 44, 45 in a rotatably fitting manner, light-source and rectification circuit board assemblies 46A, which are of the same number as the twisting type sockets 43, 44, 45 and are of a T-shape formed by fitting and soldering separate vertical and horizontal plates together, and a heat dissipation board 49, which forms therein coolant passages 47 and comprises a plurality of heat dissipation fins 48 arranged on a board back thereof, those components being stacked over each other. The light-source and rectification circuit board assembly 46A forms, on a tip of the vertical plate thereof, electrical conduction faces corresponding to electrical contacts of and fitting into the twisting type socket 43, 44, 45, and is provided, on the horizontal plate that is exposed outside the socket, with a light-emitting diode 46B to serve as the electronic light source. Opposite flanges of the heat dissipation board 49, which extend laterally and are positioned on the paraliel-connection wiring board 46, are clamped by the barbs 11H, 111, 12H, 12I for fixing.
Or altematively, as shown in Figure 8, which illustrates, from a back perspective, an exploded view of a portion of the ceiling light fixture in accordance with the present invention carrying a lamp assembly carrier board of a further different type, a lamp tube end seat 51 of the lamp assembly of said further different type is fit in and retained by the lamp tube end seat fitting hole 11J, 12J so that a lamp tube 60 of the lamp assembly can oT CT : oo ha e701. Ga - or - } ’ oo TT © i B N - oC
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Le9n00/ N5168 be fixed in the elongate slot 11F, 12F. Further, a reflector plate 61 of a suitable size is fit in the mounting frame 11K with a back side of the reflector plate 61 clamped and fixed by the barbs 11H, 111, 12H, 12I to thereby close the elongate slot 11F so as to prevent light emitted from the lamp tube 60 from leaking backward through the elongate slot 11F and thus prevent reduction of brightness. The present invention allows the lamp assembly to be interchangeably switched and to replace the lamp assembly with a light-emitting diode based light source, the reflector plate 61 is first removed from the mounting frame 11K to open the elongate slot 11F so that interference with mounting of the light-emitting diode based light source that is described previously can be overcome.
Or altematively, as shown in Figure 9, the lamp assembly carrier board 30 can comprise a plurality of light-emitting diode circuit modules 37, 38, 39, a parallel-connection wiring board 32 that clamps and retains the light-emitting diode circuit modules 37, 38, 39 thereon, and a heat dissipation board, which physically engages a back side of the parallel-connection wiring board 32, stacked over and bonded to each other. (It is noted that the heat dissipation board is not shown in Figure 9, but can be one that is similar to the heat dissipation board 33 discussed previously.) Arranged on locations of the parallel- connection wiring board 32 corresponding to opposite sides of each light-emitting diode circuit module 37, 38, 39 are resilient clips 32A, 32B that clamp on opposite side walls of the light-emitting diode circuit module 37, 38, 39. As shown, the clips 32A are clips in the form of resilient pressing plates for vertically pressing and thus retaining a light-emitting diode circuit module 37 having horizontal bottom board; or alternatively, the clips 32B can be U-shaped clips with a top opening for receiving and clamping a light-emitting diode circuit module 38, 39 having horizontal bars extending from opposite sides thereof.
These resilient clips 32A, 32B, as shown in Figure 10, are fixed to corresponding positions on the parallel-connection wiring board 32 by rivets 32C, 32D to be connected to and integrated to the parallel-connection wiring board 32.
It can be seen from the above description that the ceiling light fixture constructed in accordance with the present invention can be adapted to various lamp assembly whereby change of lamp assembly does not necessarily lead to replacement of new light fixture.
Consequently, discarding of the light fixture in replacing with newly developed lamp assembly is no longer necessary, and conservation of nature resources can be realised.
Although the present invention has been described with reference to the preferred embodiment thereof, it is apparent to those skilled in the art that a variety of modifications
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Te - .*2008/7 05168 1 and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
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Claims (14)
1. A light fixture adapted for interchangeable use with a plurality of lamp assemblies, the fixture comprising: a base housing defining at least one elongated channel; the or each channel having a bottom wall including means to mount a first lamp assembly; the or each channel having means to mount a second lamp assembly; and the first and second lamp assembly mounting means being positioned such that, in use, a second lamp assembly mounted in the light fixture fits within the channel, clear of a first lamp assembly mounted on the base of the channel.
2. A ceiling light fixture adapted for interchangeable use with a plurality of lamp assemblies, the ceiling light fixture comprising: a base housing defining at least one elongated channel; the or each channel having a bottom wall including means to mount a first lamp assembly; the or each channel having means to mount a second lamp assembly; and the first and second lamp assembly mounting means being positioned such that, in use, a second lamp assembly mounted in the light fixture fits within the channel, clear of a first lamp assembly mounted on the base of the channel.
3. A ceiling light fixture according to claim 2 in which: the base housing channel has a trapezoidal cross section; the means to mount the first lamp assembly in each trapezoidal-cross- ToT CoC - SACom 002.doc - = - ~ I Co CL PFTB Ref PC.4791.C&J - : - -- - - - a. _ —.
@ section channel is constituted by a bottom wall formed with an elongate slot, about which is provided, on the exterior of the bottom wall, a circumferential raised mounting frame and a plurality of barbs extending from the mounting frame; the means to mount the first lamp assembly on the end wall in the trapezoidal-cross-section channel is constituted by a lamp tube end seat fitting hole; whereby the ceiling light fixture selectively allows a first, electronic light source based lamp assembly carrier board to be removably received in the mounting frame and clamped and secured by the barbs to have the electronic light source exposed through the elongate slot for irradiating light onto and out of the trapezoidal-cross-section elongated channel and alternatively allows a lamp tube end seat to be fitted and retained in the lamp tube end seat fitting hole to set and fix a lamp tube of a second lamp assembly in the elongate slot to realise interchangeable use of the ceiling light fixture with different lamp assemblies.
4. A ceiling light fixture according to any one of the preceding claims in which a light- transmitting cover panel is provided corresponding to each elongated channel and having edge plates forming tenon fitting structures for closing the opening of the channel.
5. A ceiling light fixture according to claim 4 in which the tenon fitting structures formed on the edge plates of the light-transmitting cover panel comprise outside- barbed retention bars formed on the edge plates of the cover panel at locations vertically corresponding to fitting holes formed in a connection wall arranged between the openings of the channels that are adjacent to each other in order to fit : into the fitting holes to thereby have the cover panel retained on and covering the opening of the respective channel.
6. A ceiling light fixture according to claim 5 in which the cover panel forms on a surface thereof at locations close to and spaced from side edges thereof a predetermined distance through holes and wherein the opening of the channel has side lips which forms locking holes corresponding in locations to the through holes + VI EE SC Co
@ of the cover panel.
7. A ceiling light fixture according to claim 6 in which the cover panel has a surface facing the trapezoidal-cross-section channel and having opposite edge sections forming straight light-splitting racks, the surface having a central major area forming inward-concaved light-deflecting grid cells and wherein the trapezoidal- cross-section elongated channel has opposite sloped side walls each forming light-reflecting grid cells that are convex inwardly.
8. A ceiling light fixture according to claim 3 in which the first lamp assembly carrier board comprises a rectification circuit board having a surface on which a plurality of light-emitting diodes is disposed to serve as the electronic light source, a wiring board having a surface forming connection between contacts of the rectification circuit board and external wiring and a heat dissipation board that physically engages a back side of the wiring board, which are stacked over and bonded to each other, and wherein the heat dissipation board has a surface opposite to the wiring board and clamped by the barbs for fixing. ‘
9. A ceiling light fixture according to claim 3 in which the first lamp assembly carrier board comprises a wiring board having a surface forming bores for respectively receiving and fixing therein a number of twisting type sockets in a rotatably fitting manner, light-source and rectification circuit board assemblies having the same number as the twisting type sockets and each being a T-shape formed by fitting and soldering separate vertical and horizontal plates together, and a heat dissipation board forming therein coolant passages and comprising a plurality of heat dissipation fins arranged on a back thereof, which are stacked together; wherein each light-source and rectification circuit board assembly forms, on a tip of the vertical plate thereof, electrical conduction faces corresponding to electrical contacts of and fitting into the twisting type socket and is provided, on the horizontal plate that is exposed outside the socket, with a light-emitting diode to serve as the electronic light source; and wherein the heat dissipation board has opposite flanges extending laterally and positioned on the wiring board and clamped and secured by the barbs. CT ” B So a 01.G1 To a oT a a ) i TT Ba
10. A ceiling light fixture according to claim 3 in which the first lamp assembly carrier board comprises a plurality of light-emitting diode circuit modules, a wiring board retaining the light-emitting diode circuit modules thereon, and a heat dissipation board physically engaging a back side of the wiring board stacked over and bonded to each other and wherein the wiring board forms resilient clips at locations corresponding to opposite sides of each light-emitting diode circuit module for clamping on the opposite sides of the light-emitting diode circuit module.
11. A ceiling light fixture according to claim 3 in which the clips are constructed in the form of resilient pressing plates for vertically pressing and thus retaining a light- emitting diode circuit module and wherein the resilient clips are fixed to the wiring board by rivets to be connected to and integrated to the wiring board.
12. A ceiling light fixture according to claim 11 in which the clips are constructed as a U-shaped member having a top opening for receiving and clamping a side bar extending from a light-emitting diode circuit module and wherein the clips are fixed to the wiring board by rivets to be connected to and integrated to the wiring board.
13. A ceiling light fixture substantially as described in this specification with reference to the accompanying drawings.
14. A light fixture substantially as described in this specification with reference to the accompanying drawings. Dated 23 May 2008 PFT Burger/Patent|& Trade Mark Attorneys Applicant's t Attorneys oo - SACom 002.doc _ JP PFTB Ref. PC.4791.C&J - - oT - - [EEE - EE R . _ oo n
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2008200028A AU2008200028B2 (en) | 2008-01-04 | 2008-01-04 | Ceiling light fixture adaptable to various lamp assemblies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200805168B true ZA200805168B (en) | 2009-05-27 |
Family
ID=40908839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200805168A ZA200805168B (en) | 2008-01-04 | 2008-01-01 | Ceiling light fixture adaptable to various lamp assemblies |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2008200028B2 (en) |
| ZA (1) | ZA200805168B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9797580B2 (en) | 2010-05-24 | 2017-10-24 | Abl Ip Holding Llc | LED light fixture |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2318716A (en) * | 1941-07-05 | 1943-05-11 | Holophane Co Inc | Luminaire |
| US5253152A (en) * | 1991-08-12 | 1993-10-12 | Yang Thien S | Lightweight plug-in fluorescent lamp assembly |
| US5152601A (en) * | 1992-02-18 | 1992-10-06 | Ferng Shing Lai | Solar power-operated construction work warning lamp |
| US6092913A (en) * | 1998-03-26 | 2000-07-25 | Renova Technologies, Llc | Fluorescent light fixture |
| US6752513B2 (en) * | 2000-06-07 | 2004-06-22 | Genlyte Thomas Group Llc | Retrofit recessed fluorescent strip fixture and method |
| DE10029069A1 (en) * | 2000-06-13 | 2002-01-10 | Osram Opto Semiconductors Gmbh | Lamp, lamp arrangement and use of lamp employs LEDs as light source interchangeable with standard filament lamps |
| US7635198B2 (en) * | 2004-06-18 | 2009-12-22 | Acuity Brands, Inc. | Replacement light fixture and lens assembly for same |
| US20060152921A1 (en) * | 2005-01-08 | 2006-07-13 | Welker Mark L | Fixture and methods |
| EP1893912B1 (en) * | 2005-05-23 | 2020-12-16 | Signify North America Corporation | Modular led-based lighting apparatus for socket engagement, lighting fixtures incorporating same, and methods of assembling, installing and removing same |
| KR20070000835A (en) * | 2005-06-28 | 2007-01-03 | 엘지.필립스 엘시디 주식회사 | Backlight unit |
| US7249865B2 (en) * | 2005-09-07 | 2007-07-31 | Plastic Inventions And Patents | Combination fluorescent and LED lighting system |
| JP2007157557A (en) * | 2005-12-06 | 2007-06-21 | Yuuden:Kk | Lighting device |
| CN100536253C (en) * | 2006-03-06 | 2009-09-02 | 富士康(昆山)电脑接插件有限公司 | Cable connector assembly |
-
2008
- 2008-01-01 ZA ZA200805168A patent/ZA200805168B/en unknown
- 2008-01-04 AU AU2008200028A patent/AU2008200028B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU2008200028B2 (en) | 2010-05-20 |
| AU2008200028A1 (en) | 2009-07-23 |
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