CN208204944U

CN208204944U - LED lamp heat sink

Info

Publication number: CN208204944U
Application number: CN201820493593.3U
Authority: CN
Inventors: 王伟章; 王天文
Original assignee: Dongguan Putin Calcining Products Co Ltd
Current assignee: Dongguan Putin Calcining Products Co Ltd
Priority date: 2018-04-09
Filing date: 2018-04-09
Publication date: 2018-12-07
Anticipated expiration: 2028-04-09

Abstract

The utility model discloses a kind of LED lamp heat sinks, it includes a plate body, the front center position of the plate body inwardly concaves to form heat dissipation cavity, the back center position of the plate body inwardly concaves to form assembly cavity, the assembly cavity makes the bottom surface of the heat dissipation cavity convex to form erecting bed, more thermal columns are evenly distributed on the erecting bed, which is equipped with axial hole；The utility model smart structural design, rationally, thermal column is equipped with axial hole and forms hollow tubular, not only effective increasing heat radiation area, also be conducive to cross-ventilation, compared to common blade can 360 degree of ventilation and heats, good heat dissipation effect, but also reduce materials, cost is reduced, mitigates self weight, is brought convenience to installing and using；In addition, the utility model is formed using aluminum material through one is cold extrusion shaped, integral seamless, its metallographic molecular structure is even closer, make the unique good heat dissipation performance of total and waterproof effect, the radiating requirements of high-power LED lamp is able to satisfy, conducive to being widely popularized.

Description

LED lamp heat sink

Technical field

The utility model relates to heat sink technology, in particular to a kind of LED lamp heat sink.

Background technique

Traditional lamps and lanterns, light source mostly use greatly powerful mercury vapor lamp, Metal halogen lamp or high-pressure sodium lamp etc., big in light source Contain hazardous substance more, be easy to cause environmental pollution, and manufactured lamp cap it is coarse it is heavy, power consumption is big, maintenance cost is high, illumination Effect is unsatisfactory in terms of colour rendering and anti-glare properties.At the same time, semiconductor light source light emitting diode (LED) Development is extremely rapid, and in recent years, the luminous efficiency of part LED has substantially exceeded incandescent lamp, and even more than fluorescent lamp is luminous Efficiency.Compared with traditional Projecting Lamp electric light source, the basic nonhazardous of LED light source, no electromagnetic pollution and have it is small in size, low energy consumption, Light efficiency is high, calorific value is relatively low and many-sided advantage such as long service life, can substitute conventional light source production roads light.It examines It is insufficient to consider single chip LED light emission luminance, LED lamp generally uses LED array formula structure, thereby produces LED lamp heat collection In, local temperature it is excessively high, cause light decay to aggravate, to influence the normal use of LED, service life caused to reduce.Currently, power Type white light LEDs can only convert about 15% electric energy to luminous energy, and remaining 85% energy is converted to thermal energy.

With the increase of LED power, quantity of heat production increases, if heat dissipation problem solution is bad, heat concentrates on small-sized Chip in so that chip interior temperature is higher and higher.Chip temperature is excessively high to bring many problems, such as accelerate device aging, Accelerate the speed that LED light declines, shortens the working life, or even also result in chip and burn.

Current is on the market to include circular substrate and setting in circular substrate back to the LED radiator general structure to radiate Cooling fin on face causes its heat dissipation area smaller since heat sink design is unreasonable, and heat dissipation effect is less desirable, and And mostly solid construction, volume is heavy, and materials are more, at high cost.

Utility model content

In view of the above deficiencies, the utility model aim is to provide a kind of smart structural design, rationally, and materials are few, quality Gently, the LED lamp heat sink of good heat dissipation effect.

To achieve the above object, provided technical solution is the utility model: a kind of LED lamp heat sink comprising one The front center position of plate body, the plate body inwardly concaves to form heat dissipation cavity, and the back center position of the plate body inwardly concaves to be formed Assembly cavity, the assembly cavity make the bottom surface of the heat dissipation cavity convex to form erecting bed, and more are evenly distributed on the erecting bed and is dissipated Plume, the thermal column are equipped with axial hole.

As a kind of improvement of the utility model, the peripheral position of the corresponding erecting bed is in the heat dissipation cavity and is equipped with Multiple ventilation holes.

As a kind of improvement of the utility model, the appearance profile of the ventilation hole is square.

As a kind of improvement of the utility model, the appearance profile of the axial hole is rounded.

As a kind of improvement of the utility model, the top of the thermal column is in shrinking shape.

As a kind of improvement of the utility model, the top of the thermal column is in that shape is gradually reduced.

As a kind of improvement of the utility model, the thermal column is integrally in isometrical cylindric.

As a kind of improvement of the utility model, it is equipped in the axial hole by its closed mounting.

The utility model has the following beneficial effects: the utility model smart structural design, rationally, thermal column be equipped with axial hole Form hollow tubular, not only effective increasing heat radiation area is also conducive to cross-ventilation, compared to common blade can 360 degree of ventilation and heats, Good heat dissipation effect, but also materials are reduced, cost is reduced, mitigates self weight, is brought convenience to installing and using；In addition, this is practical new Type using aluminum material through one it is cold extrusion shaped form, integral seamless, metallographic molecular structure it is even closer, make total Unique good heat dissipation performance and waterproof effect, are able to satisfy the radiating requirements of high-power LED lamp, conducive to being widely popularized.

Detailed description of the invention

Fig. 1 is the schematic perspective view one of the utility model.

Fig. 2 is the schematic perspective view two of the utility model.

Fig. 3 is the schematic cross-sectional view of the utility model.

Fig. 4 is the structural schematic diagram two of thermal column in the utility model.

Fig. 5 is the structural schematic diagram three of thermal column in the utility model.

Specific embodiment

Embodiment: referring to Fig. 1 to Fig. 5, the present embodiment provides a kind of LED lamp heat sinks comprising a plate body, the plate body Front center position inwardly concaves to form heat dissipation cavity 1, and the back center position of the plate body inwardly concaves to form assembly cavity 2, the dress Make the bottom surface of the heat dissipation cavity 1 convex to form erecting bed 3 with chamber 2, is further improving radiating effect and mitigation materials, corresponds to The peripheral position of the erecting bed 3 is in the heat dissipation cavity 1 equipped with multiple ventilation holes 4.The appearance profile of the ventilation hole 4 is preferred To be square.

More thermal columns 5 are evenly distributed on the erecting bed 3, which is equipped with axial hole 6.If the axial hole 6 For through-hole, then more conducively cross-ventilation, forms stack effect, more can improving radiating effect.

In the present embodiment, referring to Fig. 3, it is equipped in the upper end of axial hole 6 by its closed mounting 7.Certainly, referring to fig. 4, It can be equipped in the lower position in the axial hole 6 by its closed mounting 7.After axial hole 6 is closed, waterproof is effectively promoted Effect.

In the present embodiment, referring to Fig. 3, the top of the thermal column 5 is in shrinking shape.In other embodiments, referring to figure 4, the whole thermal column 5 can also be in isometrical cylindric.Or referring to Fig. 5, the top of the thermal column 5 is in that shape is gradually reduced. To meet different use demands.The appearance profile of the axial hole 6 is preferably rounded, is conducive to processing.

In use, forming hollow tubular since thermal column 5 is equipped with axial hole 6, not only effective increasing heat radiation area, also sharp In cross-ventilation, compared to common blade can 360 degree of ventilation and heats, good heat dissipation effect, but also reduce materials reduces cost, subtracts Light dead-weight is brought convenience to installing and using；In addition, the utility model is formed using aluminum material through one is cold extrusion shaped, it is whole It is seamless, metallographic molecular structure it is even closer, make the unique good heat dissipation performance of total and waterproof effect, be able to satisfy big The radiating requirements of the LED light of power substantially prolong the service life of LED light product.

According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality The mode of applying is changed and is modified.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right Some modifications and changes of the utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, to the greatest extent It is used some specific terms in pipe this specification, these terms are merely for convenience of description, not to the utility model Any restrictions are constituted, using same or similar other radiators, in scope of protection of the utility model.

Claims

1. a kind of LED lamp heat sink comprising a plate body, which is characterized in that the front center position of the plate body inwardly concaves Heat dissipation cavity is formed, the back center position of the plate body inwardly concaves to form assembly cavity, which makes the bottom of the heat dissipation cavity Face convexes to form erecting bed, and more thermal columns are evenly distributed on the erecting bed, which is equipped with axial hole.

2. LED lamp heat sink according to claim 1, which is characterized in that the peripheral position of the corresponding erecting bed is in The heat dissipation cavity is equipped with multiple ventilation holes.

3. LED lamp heat sink according to claim 2, which is characterized in that the appearance profile of the ventilation hole is square.

4. LED lamp heat sink according to claim 1, which is characterized in that the appearance profile of the axial hole is rounded.

5. LED lamp heat sink according to claim 1, which is characterized in that the top of the thermal column is in shrinking shape.

6. LED lamp heat sink according to claim 1, which is characterized in that the top of the thermal column is in that shape is gradually reduced.

7. LED lamp heat sink according to claim 1, which is characterized in that the thermal column is integrally in isometrical cylindric.

8. LED lamp heat sink according to any one of claims 1-7, which is characterized in that be equipped in the axial hole By its closed mounting.