CN102721023A

CN102721023A - LED lamp radiator

Info

Publication number: CN102721023A
Application number: CN2012101945112A
Authority: CN
Inventors: 邵安祥
Original assignee: Yuyao Tianchao Ventilation Equipment Co Ltd
Current assignee: Yuyao Tianchao Ventilation Equipment Co Ltd
Priority date: 2012-06-05
Filing date: 2012-06-05
Publication date: 2012-10-10
Anticipated expiration: 2032-06-05
Also published as: CN102721023B

Abstract

The invention relates to an LED lamp radiator, and belongs to the technical field of radiating equipment for lighting devices. The LED lamp radiator comprises an upper fixing plate, a lower fixing plate, a radiating fin group, an efficient radiating plate and an unpowered fan, the radiating fin group includes more than 40 radiating fins arranged side by side, the radiating fins are cold-drawn aluminum alloy fins, the thickness of each radiating fin ranges from 0.3mm to 0.7mm, the distance between each two radiating fins ranges from 2mm to 5mm, two ends of each radiating fin are fixedly connected with annular edges of the upper fixing plate and the lower fixing plate, the efficient radiating plate is arranged below the lower fixing plate and fixedly connected with the lower surface of the lower fixing plate, and the unpowered fan is arranged in the LED lamp radiator and fixedly connected with the center of the upper surface of the lower fixing plate. The LED lamp radiator has the advantages that the radiator is reasonable in design and fast in radiating speed, a circuit board and a luminous LED element can be kept at the temperature of 45-50 DEG C in long-term operation, the processing technology of the radiator is advanced, and the radiating fins are neatly arranged and firmly connected, and are fast in erection welding speed, high in quality and wide in applicable range.

Description

A kind of LED lamp radiator

Technical field

The present invention is a kind of radiator, and particularly a kind of LED lamp radiator belongs to the radiating device technical field of lighting device.

Background technology

The bulb volume of LED light fixture is little, in light weight; High light efficiency, low light decay great power LED have been widely used in facade illumination, Landscape Lighting, interior space display lighting, public place of entertainment numerous areas such as stage illumination, lighting in one's power; Process multiple illuminations such as street lamp, bulkhead lamp capable, Tunnel Lamp, shot-light, fluorescent lamp, receive the industry favorable comment deeply.But still dislike not enough, and wherein heat radiation improperly can cause then the brightness of LED light fixture and circuit unit to quicken to decay service life because of the part technology of LED.But the people of LED lamp commonly used can find that LED is easy to make that luminous energy becomes heat energy because brightness is big especially, makes that the LED lamp is awfully hot.At this moment, if LED etc. can not dispel the heat as early as possible, its life-span will reduce greatly.The scope of application of LED lamp is more and more wider, and brightness and integrated degree improve constantly, and the heat dissipation capacity when making work is increasing, and the LED lamp requires to have proposed in the requirements at the higher level below 50 ℃ for high performance LED lamp below 55 ℃.Along with the development of demand, require the luminous efficiency of LED lamp increasingly high, and cause heat dissipation capacity increasing.When temperature surpasses the desired limit of LED lamp, will be had a negative impact the luminescent quality and the service life of LED lamp, even burnt out.

At present; The die casting aluminium shell of low heat conductivity is all adopted in the high-powered LED lamp heat radiation; Like publication number is CN101545619A, denomination of invention for the application for a patent for invention of " a kind of LED lamp radiator lamp body structure " discloses the radiating fin of an extrusion integral moulding of a kind of aluminum alloy materials, and the middle part is the cylinder of a sealing, and its center is not connected with space outerpace; The spacing design is unreasonable; Cause hot transmission speed, heat dissipation capacity and area of dissipation not enough, radiating efficiency is low, can't satisfy the heat radiation requirement of high-powered LED lamp.

Summary of the invention

The objective of the invention is in the above-mentioned prior art; Hot transmission speed, heat dissipation capacity and the area of dissipation of high-powered LED lamp are not enough; The defective that radiating efficiency is low provides a kind of LED lamp radiator, can realize the purpose that hot heat dissipation capacity and area of dissipation are big, transmission speed is fast, radiating efficiency is high.

The technical scheme taked of the present invention is to achieve these goals: a kind of LED lamp radiator; It comprises upper mounted plate, bottom plate and groups of fins; Said upper mounted plate is circular dull and stereotyped for the band centre bore; Said bottom plate is circular dull and stereotyped, and certainly, upper and lower fixing plate also can be the polygon flat board; Said groups of fins is arranged side by side by the fin more than 40 and forms, and said fin is the aluminum alloy sheet of cold drawing molding, and thickness is 0.3-0.7mm, and distance between commutator segments is 2-5mm; Each is fixedly connected the fin two ends with the ring-like limit of upper and lower fixing plate; Also comprise high efficiency and heat radiation plate, unpowered fan; Said high efficiency and heat radiation plate is arranged on the bottom plate below, below bottom plate, is fixedly connected; Said unpowered fan is arranged in the LED lamp radiator, is fixedly connected with central part above the bottom plate.

Said radiator profile is a circular cylindrical, also can be dolioform or bell certainly.

Said groups of fins is arranged side by side by 140 fin and forms; Said fin thickness is 0.5mm, and distance between commutator segments is 4mm.

The periphery of said upper mounted plate and bottom plate is provided with the elongated strip shaped hole, and the width in said elongated strip shaped hole is slightly larger than the thickness of fin; Said elongated strip shaped hole count equates with fin count; The length direction in elongated strip shaped hole is vertical with the circular arc of upper and lower fixing plate periphery; Said fin two ends are provided with inserted sheet, and the inserted sheet of fin inserts in the elongated strip shaped hole and roll riveting connects; The equal in length of said fin two ends inserted sheet is 1.2-2.2mm.

The length of said fin two ends inserted sheet is 1.7mm.

The appearance and size of said unpowered fan is corresponding with the centre bore size of upper mounted plate.

Said upper mounted plate also comprises 3 installing hole A of even setting, and upper mounted plate 1 passes through installing hole A, is fixedly connected with the power supply of screw with its top LED lamp device; Said bottom plate also comprises 3 installing hole B of even setting, and said high efficiency and heat radiation plate also comprises 3 installing hole C of even setting, and said 3 installing hole C are corresponding each other with position, the size of 3 installing hole B; Bottom plate is fixedly connected with the LED lamp of screw with its below LED lamp device through installing hole B, installing hole C.

Compared with prior art, the invention has the beneficial effects as follows:

(1) fansink designs is reasonable: the groups of fins of radiator is arranged side by side by the fin more than 40 and forms, and fin is the aluminum alloy sheet of cold drawing molding, and thickness is little, is 0.3-0.7mm, makes total area of dissipation be increased to original 5-10 doubly; Distance between commutator segments is 2-5mm, and the hollow volume increases in the middle of the radiator, and the radiator central part directly communicates with space outerpace through the fin gap;

(2) radiating rate is fast: because the design of fin increases area of dissipation; Inside and outside directly communicate; And the effect of high efficiency and heat radiation plate and unpowered fan, make radiating rate enough fast, can guarantee that circuit substrate, emitting led element are under the long-term work state; Keep 45-50 ℃, guarantee that circuit substrate, emitting led element are can Yin Wendu not too high and change in quality;

(3) processing technology of radiator is advanced, guarantees the correct moulding of fin, and peg graft with upper and lower fixing plate in the fin two ends and roll riveting is connected, and guarantee fin marshalling between upper and lower fixing plate, are connected firmly, and it is fast that fin is installed speed of welding, and quality is good;

(4) applied widely; Be widely used in facade illumination, Landscape Lighting, interior space display lighting, public place of entertainment numerous areas such as stage illumination, lighting in one's power, especially need under the situation of a large amount of heat radiations more suitable high-powered LED lamps such as bulkhead lamp capable, Tunnel Lamp, shot-lights.

Description of drawings

Fig. 1-the 1st: the main sketch map (not being with unpowered fan) of looking of the present invention;

Fig. 1-2 is: schematic top plan view of the present invention (band unpowered fan);

Fig. 2-the 1st: upper mounted plate vertical view of the present invention;

Fig. 2-the 2nd: upper mounted plate side view cutaway drawing of the present invention;

Fig. 3-the 1st: bottom plate upward view of the present invention;

Fig. 3-the 2nd: bottom plate side view of the present invention;

Fig. 3-the 3rd: Fig. 3-2A portion enlarged drawing;

Fig. 4 is: fin front view of the present invention;

Fig. 5 is: the main cutaway view (not being with unpowered fan and high efficiency and heat radiation plate) of looking of the present invention;

Fig. 6 is: the present invention and power supply and LED lamp scheme of installation among the embodiment.

Description of reference numerals: 1 upper mounted plate, 101 centre bores, 102 installing hole A, 2 bottom plates, 201 installing hole B, 3 fin, 301 inserted sheets, 4 elongated strip shaped holes, 5 high efficiency and heat radiation plates, 6 unpowered fans, 7 power supplys, 8LED lamp.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the present invention is described further, but not as to qualification of the present invention.

To shown in Figure 6, a kind of profile is a circular cylindrical LED lamp radiator like Fig. 1-1, and it comprises upper mounted plate 1, bottom plate 2 and groups of fins, and said upper mounted plate 1 is circular dull and stereotyped for band centre bore 101, and said bottom plate 2 is circular dull and stereotyped; Said groups of fins is arranged side by side by 140 fin 3 and forms, and said fin 3 is the aluminum alloy sheet of cold drawing molding, and fin thickness is 0.5mm, and distance between commutator segments is 4mm.

Be provided with the elongated strip shaped hole with 2 periphery above the bottom plate below the said upper mounted plate 1, the number in said elongated strip shaped hole 4 equates with the number of fin 3; The width in said elongated strip shaped hole 4 is slightly larger than the thickness of fin 3; The length direction in said elongated strip shaped hole 4 is vertical with the circular arc of upper and

lower fixing plate

1,2 peripheries; Said fin 3 two ends are provided with inserted sheet 301, and the inserted sheet 301 of fin is inserted in the elongated strip shaped hole 4 and with 4 roll rivetings of elongated strip shaped hole and is connected; The equal in length of said fin two ends inserted sheet is 1.7mm.

Also comprise high efficiency and heat radiation plate 5, unpowered fan 6; Said high efficiency and heat radiation plate 5 is arranged on bottom plate 2 belows, and said unpowered fan 6 is arranged in the LED lamp radiator, is fixedly connected with central part above the bottom plate 2, and the appearance and size of unpowered fan 6 is corresponding with centre bore 101 sizes of upper mounted plate 1.

Said upper mounted plate 1 also comprises 3 installing hole A102 of even setting, and upper mounted plate 1 passes through installing hole A102, is fixedly connected with the power supply 7 of screw with its top LED lamp device; Said bottom plate 2 also comprises 3 installing hole B201 of even setting, and said high efficiency and heat radiation plate also comprises 3 installing hole C (not shown) of even setting, and said 3 installing hole C are corresponding each other with position, the size of 3 installing hole B201; Bottom plate is fixedly connected with the LED lamp 8 of screw with its below LED lamp device through installing hole B201, installing hole C (not shown).

Above-described embodiment, the present invention specific embodiment a kind of more preferably just, common variation that those skilled in the art carries out in technical scheme scope of the present invention and replacement all should be included in protection scope of the present invention.

Claims

1. LED lamp radiator, it is characterized in that: it comprises upper mounted plate, bottom plate and groups of fins, and said upper mounted plate is circular dull and stereotyped for the band centre bore, and said bottom plate be circular flat board; Said groups of fins is arranged side by side by the fin more than 40 and forms, and said fin is the aluminum alloy sheet of cold drawing molding, and thickness is 0.3-0.7mm, and distance between commutator segments is 2-5mm; Each is fixedly connected the fin two ends with the ring-like limit of upper and lower fixing plate; Also comprise high efficiency and heat radiation plate, unpowered fan; Said high efficiency and heat radiation plate is arranged on the bottom plate below, below bottom plate, is fixedly connected; Said unpowered fan is arranged in the LED lamp radiator, is fixedly connected with central part above the bottom plate.

2. a kind of LED lamp radiator according to claim 1, it is characterized in that: said radiator profile is a circular cylindrical.

3. a kind of LED lamp radiator according to claim 1 is characterized in that: said groups of fins is arranged side by side by 140 fin and forms; Said fin thickness is 0.5mm, and distance between commutator segments is 4mm.

4. a kind of LED lamp radiator according to claim 1, it is characterized in that: the periphery of said upper mounted plate and bottom plate is provided with the elongated strip shaped hole, and the width in said elongated strip shaped hole is slightly larger than the thickness of fin; Said elongated strip shaped hole count equates with fin count; The length direction in elongated strip shaped hole is vertical with the circular arc of upper and lower fixing plate periphery; Said fin two ends are provided with inserted sheet, and the inserted sheet of fin inserts in the elongated strip shaped hole and roll riveting connects; The equal in length of said fin two ends inserted sheet is 1.2-2.2mm.

5. a kind of LED lamp radiator according to claim 4 is characterized in that: the length of said fin two ends inserted sheet is 1.7mm.

6. a kind of LED lamp radiator according to claim 1, it is characterized in that: the appearance and size of said unpowered fan is corresponding with the centre bore size of upper mounted plate.