Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of LED light fixture, effectively to alleviate the weight of LED light fixture.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of LED light fixture is provided, comprises: plastic frame, radiating fin group, LED light source and transparent cover plate.This plastic frame is relatively set with the first opening and the second opening, and the inwall of this plastic frame is provided with the flange between this first opening and this second opening.This radiating fin group comprises substrate and is arranged at the radiating fin in this substrate one side, the edge of the opposite side of this substrate support and be fixed on this flange in a side of this second opening.This LED light source be arranged on the opposite side of this substrate and light-emitting area towards this first opening.This transparent cover plate is arranged on this plastic frame and covers this first opening, and then is formed for holding the accommodation space of this LED light source with this plastic frame and this substrate.Plastic frame is arranged to the list structure at interval between the opposite side towards the second opening of flange and the second opening, and the end of list structure is the end face away from substrate one side higher than radiating fin, so that radiating fin group is arranged in the space that list structure encloses.LED light fixture further comprises two fixed mounts and the power pack that are oppositely arranged, the opposing sidewalls of plastic frame is offered two breach, so that two fixed mounts are fixed on the relative both sides of radiating fin group, on two fixed mounts, be provided with the brace table extending towards each other, power pack supports and is fixed on brace table.
Wherein, this LED light fixture further comprises sealing ring, and sealing circle is arranged between this substrate and this flange.
Wherein, this LED light fixture further comprises reinforcing frame, this reinforcing frame be arranged at this flange in a side of this first opening.
Wherein, on this substrate, sealing circle, this flange and this reinforcing frame, be respectively arranged with corresponding fixing hole, and interfix by the fixture being arranged in this fixing hole.
Wherein, this fixture is screw.
Wherein, this LED light fixture further comprises reflector, and this reflector is arranged at this accommodation space and is positioned at this LED light source around.
Wherein, these two fixed mounts are fixed in this radiating fin group with removably.
Wherein, the parallel and interval of this radiating fin group arranges.
The invention has the beneficial effects as follows: be different from the situation of prior art, it is main frame that LED light fixture of the present invention adopts plastic frame, dispels the heat by radiating fin group, has therefore effectively alleviated the weight of LED light fixture.
Detailed description of the invention
Consult Fig. 1 and Fig. 2, Fig. 1 is the decomposing schematic representation along a direction of the LED light fixture of first embodiment of the invention, and Fig. 2 is the decomposing schematic representation along other direction of the LED light fixture of first embodiment of the invention.In the present embodiment, LED light fixture comprises plastic frame 10, radiating fin group 20, LED light source (not shown), transparent cover plate 40, sealing ring 50, reinforcing frame 60, reflector 70, fixed mount 80 and power pack 90.
Plastic frame 10 is relatively set with the first opening and the second opening.The first opening is arranged at the bright dipping side of LED light fixture, and the second opening is relatively arranged on the backlight side of LED light fixture.The inwall 13 of plastic frame 10 is provided with the flange 14 between the first opening and the second opening.Flange 14 is preferably by inwall 13 one of plastic frame 10 and extends to form, and with the residing plane parallel of the first opening.
Radiating fin group 20 comprises substrate 21 and is arranged at the radiating fin 22 in substrate 21 1 sides.In the present embodiment, radiating fin group 20 parallel and interval setting perpendicular to substrate 21.Radiating fin group 20 is preferably one-body molded, and for example radiating fin 22 and substrate 21 can be formed by fashion of extrusion by metal base.The edge of the opposite side of substrate 21 support and be fixed on flange 14 in a side of the second opening.Plastic frame 10 is arranged to the list structure at interval between the opposite side towards the second opening of flange 14 and the second opening, to alleviate plastic frame 10 weight, and increases the radiating effect of radiating fin group 20.
Sealing ring 50 is arranged between substrate 21 and flange 14, reinforcing frame 60 be arranged at flange 14 in a side of the first opening, on substrate 21, sealing ring 50, flange 14 and reinforcing frame 60, be respectively arranged with corresponding fixing hole (not indicating), and interfix by the fixture being arranged in fixing hole.Now, sealing ring 50 forms sealing for making between substrate 21 and flange 14, and reinforcing frame 60 is for increasing the intensity of flange 14, and in the present embodiment, sealing ring 50 is water-proof silica-gel circle, and fixture is screw.In other embodiments, in the time that the intensity of flange 14 is enough, reinforcing frame 60 also can omit, and sealing ring 50 can be replaced by other sealing means, for example fluid sealant.
LED light source is arranged on the opposite side of substrate 21 away from radiating fin 22, and light-emitting area is towards the first opening.For ensureing the luminous intensity of LED light fixture, multiple LED light sources can be set.
Transparent cover plate 40 is arranged on plastic frame 10 and covers the first opening, and then is formed for holding the accommodation space of LED light source with plastic frame 10 and substrate 21.Reflector 70 is arranged at accommodation space and is positioned at LED light source around.In the present embodiment, reflector 70 is inverted trapezoidal.Wherein, the lower diapire that area is less has part opening, and the corresponding LED light source of opening.Four sidewall slope are extended, and formation one is greater than the bright dipping opening of lower diapire, for bright dipping.In the present embodiment, transparent cover plate 40 is safety glass.
Two fixed mounts 80 are oppositely arranged, and are preferably fixed in radiating fin group 20 with removably.Because radiating fin group 20 is arranged in the second opening of plastic frame 10, therefore the opposing sidewalls of plastic frame 10 need be offered two breach, so that two fixed mounts 80 are fixed in radiating fin group 20.In the present embodiment, fixed mount 80 is fixed on the radiating fin 22 of radiating fin group 20.On two fixed mounts 80, be provided with the brace table 83 extending towards each other.Fixed mount 80 is formed in one, and brace table 83 is preferably perpendicular to the main body of fixed mount 80.Power pack 90 supports and is fixed on brace table 83.
Consult Fig. 3, Fig. 3 is the schematic cross-section after the assembling of LED light fixture of first embodiment of the invention.The reinforcing frame 60 of the LED light fixture after assembling, the flange 14(of plastic frame 10 consult Fig. 1 and Fig. 2), the substrate 21(of sealing ring 50 and radiating fin group 20 consults Fig. 1 and Fig. 2) be closely connected by fixture, coordinate transparent cover plate 40 to form an accommodation space.In order to make the sealing effectiveness of this accommodation space better, LED light fixture in the present embodiment further comprises sealing ring 51, and sealing ring 51 is arranged between transparent cover plate 40 and plastic frame 10.Reflector 70 and LED light source are arranged in this accommodation space, and LED light source 30 is arranged on substrate 21 and is corresponding with reflector 70 lower openings, and LED light source 30 issued lights directly or after reflector 70 reflections penetrate transparent cover plate 40.Power pack 90 is fixed on the below of radiating fin group 20 by fixed mount 80.
By the way, it is main frame that LED light fixture of the present invention adopts plastic frame, dispels the heat by radiating fin group, has therefore effectively alleviated the weight of LED light fixture, makes LED light fixture lighter.
Consult Fig. 4 and Fig. 5, Fig. 4 is the decomposing schematic representation of the LED light fixture of second embodiment of the invention, and Fig. 5 is the schematic cross-section after the assembling of LED light fixture of second embodiment of the invention.In second embodiment of the invention, LED light fixture comprises plastic frame 210, radiating fin group 220, LED light source 225, transparent cover plate 240, sealing ring 250, sealing ring 251, reflector 270 and top cover 216.Wherein, the inwall 213 of plastic frame 210 is provided with the flange 214 between the first opening and the second opening, and flange 214, radiating fin group 220, sealing ring 250 and reflector 270 arrange in the same manner as in the first embodiment.The present embodiment and the first embodiment different be in, the inwall 213 of plastic frame 210 is further provided with the flange 215 between flange 214 and the first opening.Transparent cover plate 240 is supported on flange 215, and sealing ring 251 is arranged between transparent cover plate 240 and flange 215, and then is formed for holding the accommodation space of LED light source with the substrate 221 of plastic frame 210 and radiating fin group 220.
Top cover 216 edges are provided with fixing hole 2161, and plastic frame 210 is provided with the fixing hole corresponding with fixing hole 2,161 2162, and top cover 216 is connected with the screw 218 in fixing hole 2162 by being arranged at fixing hole 2161 with plastic frame 210.In other embodiments, top cover 216 also can be connected and be fixed by modes such as engagings with plastic frame 210.In the present embodiment, top cover 216 cooperations that transparent cover plate 240 is connected by plastic frame 210 and with plastic frame 210 grip.And the plastic frame 210 of the present embodiment further comprises the lug boss 217 that is arranged at inwall 213, lug boss 217 is further fixed to the transparent cover plate 240 being supported on flange 215.
Consult Fig. 5, in the present embodiment, LED light source 225 is connected and fixes with the substrate 221 of radiating fin group 220, and then by radiating fin group 220, LED light source 225 is dispelled the heat.And the power supply 290 in the present embodiment is arranged in accommodation space, cancel the fixed mount 80 in the first embodiment, further dwindle the volume of LED light fixture.
By the way, it is main frame that LED light fixture of the present invention not only adopts plastic frame, dispels the heat by radiating fin group, therefore effectively alleviated the weight of LED light fixture, make LED light fixture lighter, and make the fixing more firm of transparent cover plate, structure is more stable.
Consult Fig. 6 and Fig. 7, Fig. 6 is the stereogram of the LED light fixture of third embodiment of the invention, and Fig. 7 is the side view of the LED light fixture of third embodiment of the invention.In third embodiment of the invention, LED light fixture comprises plastic frame 310, radiating fin group 320, transparent cover plate 340, fastener 381, snap ring 382 and grab 383.In the present embodiment, plastic frame 310 arranges in the mode identical with the second embodiment with the first embodiment with radiating fin group 320.Transparent cover plate 340 is arranged on plastic frame 310 and covers the first opening, and embodiment is different from the first two, and in the present embodiment, transparent cover plate 340 coordinates plastic frame 310 to be fixed by fastener 381.One end of fastener 381 is fastened on transparent cover plate 340, and then transparent cover plate 340 is fixed on plastic frame 310.Grab 383 is further set on transparent cover plate 310, is provided with snap ring 382 on fastener 381, snap ring 382 is sheathed in grab 383.
Consult Fig. 8, Fig. 8 is the LED light fixture part-structure side view of third embodiment of the invention.One end of fastener 381 is fastened on transparent cover plate 340, and the other end is fixed in radiating fin group 320, is specifically fixed on the substrate 321 of radiating fin group 320.In the present embodiment, by screw (not indicating), the other end of fastener 381 is fixed on substrate 321.
By this kind of mode, can make transparent cover plate in the time coming off, hold grab by the snap ring on fastener, thereby prevent that transparent cover plate from coming off completely, increase the security of the LED light fixture of knowing clearly.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.