CN202419184U

CN202419184U - Led down lamp

Info

Publication number: CN202419184U
Application number: CN201120460029XU
Authority: CN
Inventors: 胡栋; 严永红; 黎朝进; 杨湖光; 段云; 杨林
Original assignee: CHONGQING SILIAN OPTOELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: CHONGQING SILIAN OPTOELECTRONIC SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-09-05
Anticipated expiration: 2021-11-18

Abstract

The utility model relates to an LED down lamp, which comprises a driving power component, a radiator, an LED lamp source, a lampshade, a reflection cup and a light diffuser plate. The radiator is in the shape of a hollow straight barrel, a plurality of radiating channels which are vertically through and are separated by radiating fins are axially arranged on the barrel wall of the radiator, the driving power component and the LED lamp source are mounted in a cavity of the radiator, one end of the lampshade is a large-head end with a conical recess, an axial extension section is arranged at the other end of the lampshade, the diameter of the axial extension section is smaller than that of the large-head end, a plurality of vertically through vent holes are disposed on the wall of an annular cavity of the conical recess at the large-head end, an axial stepped hole is arranged in the axial extension section of the lampshade, the light diffuser plate and the reflection cup are fixed into the axial stepped hole, the axial extension section of the lampshade is fixedly connected with the radiator, and the vent holes on the conical recess at the large-head end of the lampshade and the radiating channels on the radiator form air convection channels. The LED down lamp not only is fine in radiating and light emergent effect, but also is shorter integrally, and is convenient to assemble and attractive in appearance.

Description

The LED Down lamp

Technical field

The utility model relates to a kind of illuminations, particularly a kind of LED Down lamp.

Background technology

Along with the continuous popularization of LED green energy conservation illumination, LED light fixture demand is also increasing day by day.Wherein the LED Down lamp enjoys the favor of commercial lighting and domestic lighting especially.

Yet existing LED Down lamp adopts the aluminium extruded radiator usually, and radiating effect is poor, has greatly influenced the normal use of LED Down lamp; While is because driving power adopts external form, and the whole height of light fixture is also higher, makes it be difficult to satisfy the shorter requirement of the modern times finishing ceiling void, and the assembling difficulty, and bright dipping weak effect, monnolithic case are not attractive in appearance yet.

Summary of the invention

The purpose of the utility model is the deficiency to prior art, and a kind of LED Down lamp is provided, and it not only dispels the heat, bright dipping is effective, and whole height is shorter, is convenient to assembling, good looking appearance.

The technical scheme of the utility model is: a kind of LED Down lamp; Comprise driving power assembly, radiator, LED lamp source, lampshade, reflector, light diffusing sheet; Said radiator is the straight-tube shape of hollow; Be axially arranged with several on the barrel of said radiator and isolate the heat dissipation channel of the up/down perforation that by fin, said driving power assembly and LED lamp source are installed in the cavity of radiator, and an end of said lampshade is the stub end with tapered recess; The other end is the extend axially section of diameter less than stub end; Annular cavity wall on the tapered recess of said stub end is provided with the air vent of several up/down perforations, is provided with the axial step hole in the section of extending axially of said lampshade, and said reflector and light diffusing sheet are fixed in the axial step hole; The section of extending axially of said lampshade is fixedly connected with radiator, and air vent on the tapered recess of lampshade stub end and the heat dissipation channel on the radiator form air convection channel.

Several heat dissipation channels are arranged in order into circular around the barrel of radiator.

Be provided with the installing plate that is used to install LED lamp source in the cavity of said radiator, this installing plate is separated into first chamber and second chamber with the cavity of radiator, and the openend of said first chamber is provided with lid.

Said driving power assembly is installed in first chamber, and said LED lamp source is positioned at second chamber, and LED lamp source is fixedly connected on the installing plate.

Said radiator adopts aluminum alloy materials one die cast.

The both sides of said radiator outer wall are equipped with jump ring.

Said reflector and light diffusing sheet all are fixed in the path section in axial step hole, and said reflector is pressed on the light diffusing sheet.

Several air vents are arranged in order into circular or are staggered to wavy up and down around the wall of tapered recess around the wall of tapered recess.

Said lampshade adopts aluminum alloy materials one die cast.

Adopt technique scheme:, be axially arranged with several on the barrel of radiator and isolate the heat dissipation channel of the up/down perforation that, good heat dissipation effect by fin because the radiator of this LED Down lamp is the straight-tube shape of hollow.Because driving power assembly and LED lamp source are installed in the cavity of radiator, have realized on-chip power, have reduced the whole height of this LED Down lamp.Because an end of lampshade is the stub end with tapered recess; The other end is the extend axially section of diameter less than stub end; Wherein the annular cavity wall on the tapered recess of stub end is provided with the air vent of several up/down perforations; Be provided with the axial step hole in the section of extending axially of lampshade, reflector and light diffusing sheet are fixed in the axial step hole, and the section of extending axially of said lampshade is fixedly connected with radiator; Air vent on the tapered recess of lampshade stub end and the heat dissipation channel on the radiator form air convection channel; The common cooling system that is similar to chimney that forms of radiator, lampshade, reflector, light diffusing sheet has guaranteed better heat radiating effect like this, makes the light that emits even more and light efficiency is higher through reflector and light diffusing sheet are set simultaneously.

Because radiator and lampshade all adopt aluminum alloy materials one die cast, processing technology is simple, is convenient to produce in batches.

Because each parts of this LED Down lamp all connect through screw, have guaranteed whole mechanical strength, and be convenient to assembling.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the explosive view of the utility model;

Fig. 3 is the structural representation of the radiator of the utility model;

Fig. 4 is a kind of embodiment of the lampshade of the utility model;

Fig. 5 is the another kind of embodiment of the lampshade of the utility model;

Fig. 6 is that the A-A of Fig. 5 is to sketch map.

In the accompanying drawing, 1 is radiator, and 1a is a cavity, and 2 is lampshade, and 3 is reflector, and 4 is light diffusing sheet; 5 is heat dissipation channel, and 6 is tapered recess, and 7 is air vent, and 8 is the axial step hole, and 9 is lid, and 10 is jump ring; 11 is driving power, and 12 is power pack, and 13 is junction block, and 14 is link cover of FIG, and 15 is first screw; 16 is LED lamp pearl, and 17 is printed panel, and 18 is second screw, and 19 is the 3rd screw, and 20 is the 4th screw.

The specific embodiment

Referring to Fig. 1 to Fig. 6, a kind of LED Down lamp comprises driving power assembly, radiator 1, LED lamp source, lampshade 2, reflector 3, light diffusing sheet 4; Said driving power assembly comprises driving power 11, power pack 12, junction block 13 and link cover of FIG 14; Power pack adopts PC plastics integrated injection molding in the present embodiment, and its thickness is 1.2mm, and flame retardant rating can arrive V0; Driving power 11 is fixed in the power pack 12; Junction block 13 is installed on the groove of power pack 12 openends setting, and link cover of FIG 14 is covered on junction block 13 and through first screw 15 and fixed, and has guaranteed electrical safety; Said LED lamp source comprises LED lamp pearl 16 and printed

panel

17,16 orderly being arranged on the printed panel 17 of LED lamp pearl; Said reflector 3 adopts PC plastics integrated injection molding; Color is a white, and the reflective surface of this reflector 3 is the dermatoglyph face, and (chemical name is a polymethyl methacrylate to mix PMMA; Be commonly called as acrylic or polymethyl methacrylate) light diffusing sheet make bright dipping more even, light efficiency is higher.Said radiator 1 is the straight-tube shape of hollow; This radiator 1 adopts aluminum alloy materials one die cast; The both sides of radiator outer wall are equipped with jump ring 10, are convenient to assembling, are axially arranged with several are isolated the up/down perforation that by fin heat dissipation channel 5 on the barrel of radiator; The barrel that each heat dissipation channel 5 centers on radiator is arranged in order into circular, has guaranteed radiating effect.Be provided with the installing plate (figure does not indicate) that is used for installing LED lamp source in the cavity of said radiator; This installing plate is separated into first chamber (not indicating among the figure) and second chamber (not indicating among the figure) with the cavity of radiator; The openend of first chamber is provided with lid 9, and this lid 9 adopts PC plastics integrated injection molding, and flame retardant rating can arrive V0; Lid is fixed on first chamber of radiator through second screw 18, has further guaranteed electrical safety.Said driving power assembly and LED lamp source are installed in the cavity of radiator, and wherein the driving power assembly is installed in first chamber; LED lamp source is positioned at second chamber, and LED lamp source is fixedly connected on the installing plate, and the printed panel 17 in LED lamp source is fixedly connected on the installing plate through the 3rd screw 19 in the present embodiment.Said lampshade 2 adopts aluminum alloy materials one die cast, is convenient to processing, good heat dissipation effect.One end of said lampshade 2 is the stub end with tapered recess 6, and the other end is the extend axially section of diameter less than stub end.Annular cavity wall on the tapered recess 6 of said stub end is provided with the air vent 7 of several up/down perforations; Each air vent 7 is arranged in order into circular or is staggered to wavy up and down around the wall of tapered recess around the wall of tapered recess; Each air vent 7 can be arranged in order into circular, as shown in Figure 4 around the wall of tapered recess in the present embodiment; Also can be staggered to up and down around the wall of tapered recess wavy, as shown in Figure 5 so that circulation of air.Be provided with axial step hole 8 in the section of extending axially of said lampshade 2, said reflector 3 is fixed in the axial step hole 8 with light diffusing sheet 4, and reflector 3 all is fixed in the path section in axial step hole 8 with light diffusing sheet 4, and reflector 3 is pressed on the light diffusing sheet 4.The section of extending axially of said lampshade 2 is fixedly connected with radiator 1; The section of extending axially of lampshade 2 is fixedly connected through the 4th screw 20 with radiator 1; Air vent 7 and the heat dissipation channel on the radiator 5 on the tapered recess 6 of lampshade 2 stub ends form air convection channel; Radiator 1, lampshade 2, reflector, the common cooling system that is similar to chimney that forms of light diffusing sheet have guaranteed better heat radiating effect like this.

During installation; At first led light source is fixed on through the 3rd screw on the installing plate of radiator, the driving power assembly is installed in first chamber of radiator again, the positive and negative electrode lead of driving power is connected on the positive and negative electrode of led light source; The remaining lead of driving power is connected on the junction block; And through first screw junction block and link cover of FIG are fixed on the radiator, power supply module to be driven installs, and just can lid be fixed on the radiator through second screw.Subsequently reflector and light diffusing sheet are fixed on the axial step hole of the section of extending axially of lampshade; Then radiator is fixed on the section of extending axially of lampshade through the 4th screw; Radiator, lampshade, reflector, the common formation of light diffusing sheet are similar to the cooling system of chimney like this; At last jump ring is installed on the both sides of radiator outer wall, just can accomplishes the composition of this LED Down lamp.

Claims

1. LED Down lamp; Comprise driving power assembly, radiator (1), LED lamp source, lampshade (2), reflector (3), light diffusing sheet (4); It is characterized in that: said radiator (1) is the straight-tube shape of hollow; Be axially arranged with several are isolated the up/down perforation that by fin heat dissipation channel (5) on the barrel of said radiator; Said driving power assembly and LED lamp source are installed in the cavity (1a) of radiator; One end of said lampshade (2) is for having the stub end of tapered recess (6), and the other end is the extend axially section of diameter less than stub end, and the annular cavity wall on the tapered recess of said stub end (6) is provided with the air vent (7) of several up/down perforations; Be provided with axial step hole (8) in the section of extending axially of said lampshade (2); Said reflector (3) and light diffusing sheet (4) are fixed in the axial step hole (8), and the section of extending axially of said lampshade (2) is fixedly connected with radiator (1), and the heat dissipation channel (5) on air vent (7) on the tapered recess (6) of lampshade (2) stub end and the radiator forms air convection channel.

2. LED Down lamp according to claim 1 is characterized in that: several heat dissipation channels (5) are arranged in order into circular around the barrel of radiator.

3. LED Down lamp according to claim 1; It is characterized in that: be provided with the installing plate that is used to install LED lamp source in the cavity of said radiator; This installing plate is separated into first chamber and second chamber with the cavity of radiator, and the openend of said first chamber is provided with lid (9).

4. according to claim 1 or 3 described LED Down lamps, it is characterized in that: said driving power assembly is installed in first chamber, and said LED lamp source is positioned at second chamber, and LED lamp source is fixedly connected on the installing plate.

5. LED Down lamp according to claim 1 is characterized in that: said radiator (1) adopts aluminum alloy materials one die cast.

6. LED Down lamp according to claim 1 is characterized in that: the both sides of said radiator outer wall are equipped with jump ring (10).

7. LED Down lamp according to claim 1 is characterized in that: said reflector (3) and light diffusing sheet (4) all are fixed in the path section in axial step hole, and said reflector (3) is pressed on the light diffusing sheet (4).

8. LED Down lamp according to claim 1 is characterized in that: several air vents (7) are arranged in order into circular or are staggered to wavy up and down around the wall of tapered recess around the wall of tapered recess.

9. LED Down lamp according to claim 1 is characterized in that: said lampshade (2) adopts aluminum alloy materials one die cast.