CN102721023B

CN102721023B - LED lamp radiator

Info

Publication number: CN102721023B
Application number: CN201210194511.2A
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: 2015-04-15
Anticipated expiration: 2032-06-05
Also published as: CN102721023A

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 roll-rivetingly 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 heat sink

Technical field

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

Background technology

The bulb volume of LED lamp is little, lightweight, specular removal, low light attenuation great power LED have been widely used in Building facade lighting, Landscape Lighting, interior space display lighting, the public place of entertainment numerous areas such as stage illumination, lighting in one's power, make the multiple illuminations such as street lamp, bulkhead lamp capable, Tunnel Lamp, shot-light, fluorescent lamp, dark in industry favorable comment.But because the part technology of LED still dislikes not enough, and wherein dispel the heat improperly, then the brightness of LED lamp and circuit unit can be caused to accelerate decay service life.But the people of conventional LED can find, LED is large especially due to brightness, is easy to make luminous energy become heat energy, makes LED 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 is more and more wider, and brightness and integration degree improve constantly, and make heat dissipation capacity during work increasing, and LED requires below 55 DEG C, proposes the requirements at the higher level below 50 DEG C for high performance LED.Along with the development of demand, require that the luminous efficiency of LED is more and more higher, and cause heat dissipation capacity increasing.When temperature exceedes the limit required by LED, will have a negative impact to the luminescent quality of LED and service life, even be burned.

At present, high-powered LED lamp heat radiation all adopts the die casting aluminium shell of low heat conductivity, as publication number be CN101545619A, denomination of invention is that the application for a patent for invention of " a kind of LED lamp heat sink lamp body structure " discloses the shaping radiating fin of a kind of aluminum alloy materials extrusion integral, middle part is a cylinder closed, its center is not connected with space outerpace, line space design is unreasonable, cause Heat transmission speed, heat dissipation capacity and area of dissipation inadequate, radiating efficiency is low, cannot meet the cooling requirements of high-powered LED lamp.

Summary of the invention

The object of the invention is in above-mentioned prior art, the Heat transmission speed of high-powered LED lamp, heat dissipation capacity and area of dissipation are inadequate, the defect that radiating efficiency is low, provides a kind of LED lamp heat sink, can realize hot heat dissipation capacity and area of dissipation is large, transmission speed is fast, radiating efficiency is high object.

The technical scheme that the present invention takes to achieve these goals is: a kind of LED lamp heat sink, it comprises upper mounted plate, bottom plate and groups of fins, fixed plate is that the circle of band centre bore is dull and stereotyped, described bottom plate is circular dull and stereotyped, certainly, upper and lower fixing plate also can be polygonal flat panel; Described groups of fins is arranged side by side by the fin of more than 40 and forms, and described 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; The periphery of fixed plate and bottom plate is provided with elongated strip shaped hole, and the width in described elongated strip shaped hole is slightly larger than the thickness of fin; Described elongated strip shaped hole count is equal with fin count; The length direction in elongated strip shaped hole is vertical with the circular arc of upper and lower fixing plate periphery; Described fin two ends are provided with inserted sheet, and the inserted sheet of fin to insert in elongated strip shaped hole and roll riveting connection; The length of described fin two ends inserted sheet is equal, is 1.2-2.2mm.

Also comprise high efficiency and heat radiation plate, unpowered fan; Described high efficiency and heat radiation plate is arranged on below bottom plate, is fixedly connected with below bottom plate; Described unpowered fan is arranged in LED lamp heat sink, is fixedly connected with central part above bottom plate.

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

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

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

The appearance and size of described unpowered fan is corresponding with the center hole size of upper mounted plate.

Fixed plate also comprises 3 the installing hole A evenly arranged, and upper mounted plate 1 is by installing hole A, be fixedly connected with the power supply of LED lamp device above it with screw; Described bottom plate also comprises 3 the installing hole B evenly arranged, and described high efficiency and heat radiation plate also comprises 3 installing hole C of even setting, and position, the size of described 3 installing hole C and 3 installing hole B are mutually corresponding; Bottom plate is fixedly connected with the LED of LED lamp device below it with screw by 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 of 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 radiator intermediate hollow volume increases, and radiator central part is directly communicated with space outerpace by fin gap:

(2) radiating rate is fast: the design due to fin makes area of dissipation increase, inside and outside directly communicate, and the effect of high efficiency and heat radiation plate and unpowered fan, make radiating rate enough fast, can ensure that circuit substrate, emitting led element are under long-term work state, keep 45-50 DEG C, guarantee circuit substrate, emitting led element can not Yin Wendu too high and change in quality;

(3) processing technology of radiator is advanced, guarantees fin correct forming, fin two ends with upper and lower fixing plate grafting and roll riveting be connected, guarantee fin marshalling between upper and lower fixing plate, be connected firmly, fin erecting and welding speed is fast, and quality is good;

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

Accompanying drawing explanation

Fig. 1-1 is: the utility model schematic front view (not being with unpowered fan);

Fig. 1-2 is: the utility model schematic top plan view (band unpowered fan);

Fig. 2-1 is: the utility model upper mounted plate top view;

Fig. 2-2 is: the utility model upper mounted plate side view cutaway drawing;

Fig. 3-1 is: the utility model bottom plate upward view;

Fig. 3-2 is: the utility model bottom plate side view;

Fig. 3-3 is: Fig. 3-2A portion enlarged drawing;

Fig. 4 is: the utility model fin front view;

Fig. 5 is: the utility model front sectional view (not being with unpowered fan and high efficiency and heat radiation plate);

Fig. 6 is: the utility model and power supply and LED scheme of installation in 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.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as a limitation of the invention.

As shown in Fig. 1-1 to Fig. 6, a kind of profile is circular cylindrical LED lamp heat sink, and it comprises upper mounted plate 1, bottom plate 2 and groups of fins, and fixed plate 1 is that the circle of band centre bore 101 is dull and stereotyped, and described bottom plate 2 is circular dull and stereotyped; Described groups of fins is arranged side by side by 140 fin 3 and forms, and described fin 3 is the aluminum alloy sheet of cold drawing molding, and fin thickness is 0.5mm, and distance between commutator segments is 4mm.

Fixed plate 1 below and above bottom plate 2 periphery be provided with elongated strip shaped hole, the number in described elongated strip shaped hole 4 is equal with the number of fin 3; The width in described elongated strip shaped hole 4 is slightly larger than the thickness of fin 3; The length direction in described elongated strip shaped hole 4 is vertical with the circular arc of upper and lower fixing plate 1,2 periphery; Described fin 3 two ends are provided with inserted sheet 301, and the inserted sheet 301 of fin to be inserted in elongated strip shaped hole 4 and to be connected with elongated strip shaped hole 4 roll riveting; The length of described fin two ends inserted sheet is equal, is 1.7mm.

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

Fixed plate 1 also comprises 3 the installing hole A102 evenly arranged, and upper mounted plate 1 is by installing hole A102, be fixedly connected with the power supply 7 of LED lamp device above it with screw; Described bottom plate 2 also comprises 3 the installing hole B201 evenly arranged, and described high efficiency and heat radiation plate also comprises 3 the installing hole C (not shown) evenly arranged, and position, the size of described 3 installing hole C and 3 installing hole B201 are mutually corresponding; Bottom plate is fixedly connected with the LED 8 of LED lamp device below it with screw by installing hole B201, installing hole C (not shown).

Above-described embodiment, the just one of the present invention's more preferably detailed description of the invention, the usual change that those skilled in the art carries out within the scope of technical solution of the present invention and replacing all should be included in protection scope of the present invention.

Claims

1. a LED lamp heat sink, is characterized in that: it comprises upper mounted plate, bottom plate and groups of fins, and fixed plate is that the circle of band centre bore is dull and stereotyped, and described bottom plate is circular dull and stereotyped; Described groups of fins is arranged side by side by the fin of more than 40 and forms, and described 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; The periphery of fixed plate and bottom plate is provided with elongated strip shaped hole, and the width in described elongated strip shaped hole is slightly larger than the thickness of fin; Described elongated strip shaped hole count is equal with fin count; The length direction in elongated strip shaped hole is vertical with the circular arc of upper and lower fixing plate periphery; Described fin two ends are provided with inserted sheet, and the inserted sheet of fin to insert in elongated strip shaped hole and roll riveting connection; The length of described fin two ends inserted sheet is equal, is 1.2-2.2mm; Also comprise high efficiency and heat radiation plate, unpowered fan; Described high efficiency and heat radiation plate is arranged on below bottom plate, is fixedly connected with below bottom plate; Described unpowered fan is arranged in LED lamp heat sink, is fixedly connected with central part above bottom plate.

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

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

4. a kind of LED lamp heat sink according to claim 1, is characterized in that: the length of described fin two ends inserted sheet is 1.7mm.

5. a kind of LED lamp heat sink according to claim 1, is characterized in that: the appearance and size of described unpowered fan is corresponding with the center hole size of upper mounted plate.