CN203176869U

CN203176869U - Convection heat dissipation type LED lamp

Info

Publication number: CN203176869U
Application number: CN2013202222784U
Authority: CN
Inventors: 王龙漾
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-27
Filing date: 2013-04-27
Publication date: 2013-09-04
Anticipated expiration: 2023-04-27

Abstract

The utility model relates to the technical field of illumination lamps, in particular to a convection heat dissipation type LED (light emitting diode) lamp. The convection heat dissipation type LED lamp comprises a lamp cap, a plurality of LED chips, reflecting plates, light-transmission covers and a heat dissipation body, wherein the heat dissipation body comprises a base and three independent heat dissipation petals; a shaft hole is formed in the base; the three heat dissipation petals are uniformly and circumferentially distributed on the base by taking the shaft hole as the center, and are in trapezoidal groove body structures; a heat dissipation channel is formed between every two adjacent heat dissipation petals; and the heat dissipation channels are communicated with one another by a projection area of the shaft hole. According to the convection heat dissipation type LED lamp, the traditional heat dissipation body is improved structurally, heat conduction is conducted on heat generated by the LED chips by utilizing the three independent heat dissipation petals, and an air convection effect is improved by communicated heat dissipation channels formed among the heat dissipation petals, so that the heat dissipation capacity of the lamp is improved; in addition, the LED chips are matched with the reflecting plates which are similar to the heat dissipation petals structurally, so that the luminous efficiency of the lamp is improved; and the convection heat dissipation type LED lamp is simple in structure, attractive in appearance and very high in practicability.

Description

A kind of convection heat dissipation type LED head lamp

Technical field

The utility model relates to field of illumination lamp technology, especially a kind of convection heat dissipation type LED head lamp.

Background technology

The LED lamp has characteristics such as higher luminous efficiency, long, low radiation of life-span, low-voltage, energy-conserving and environment-protective and is generally used by people as novel energy-saving illumination light source.At present, existing LED lighting ubiquity influences the light fixture problem in service life because of the bad serious light decay that produces that dispels the heat; Based on this, need increase by a radiator structure at substrate usually.

Lamp radiator of the prior art adopts the radiating fin group mostly, to be undertaken taking away heat after the heat exchange by fins group and air; In the heat radiation process, because must could contacting with fins group by heat-conducting plate, air dispels the heat, make the radiating fin group only can carry out heat exchange with the part air, heat on the fins group can't spread efficiently and effectively towards periphery, and fins group dense distribution side by side makes that also radiating effect is not good or radiating effect is limited.Simultaneously, this kind radiating mode can't be realized sufficient heat loss through convection, and heat can only be in the narrow space internal flow, thereby causes heat to be assembled at fin, keeps higher temperature in fins group is long-time, causes radiating efficiency low.In addition, also there is complex structure in the light fixture of this class formation, problems such as overall volume is big, cost height.

The utility model content

At the deficiency that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of simple in structure, easy disassembly, the convection heat dissipation type LED head lamp that heat-sinking capability is strong.

To achieve these goals, the utility model adopts following technical scheme:

A kind of convection heat dissipation type LED head lamp, it comprises lamp holder, led chip, reflector, diffuser and radiator, described radiator comprises pedestal and three lobes that independently dispel the heat, and offers axis hole on the described pedestal, and three described heat radiation lobes encircle being evenly distributed on the pedestal of week centered by axis hole; Described heat radiation lobe is the dovetail groove body structure, is formed with heat dissipation channel between two adjacent described heat radiation lobes, and each described heat dissipation channel is interconnected by the view field of axis hole;

Reflector offers installing port on the described reflector, and at least one led chip is fixedly arranged on the described installing port;

Described lamp holder and pedestal removably connect, and described reflector and diffuser are installed on the heat radiation lobe from the inside to the outside successively.

Preferably, described heat radiation lobe comprises facade, first side and second side, and the angle between described first side and the facade and the angle between second side and the facade are 120 degree-150 degree.

Preferably, the bottom of the bottom of the junction of described first side and facade and the junction of second side and facade is provided with the screens structure, the bottom of described reflector is provided with the card article that cooperates with the contraposition of screens structure, and described reflector is by card article and the chimeric realization of screens structure and fixedlying connected of heat radiation lobe.

Preferably, the installing port of described reflector is opened in the corresponding zone of reflector and facade.

Preferably, the top of three described heat radiation lobes draws tail to bind by the decoration that is threaded, and described decoration draws tail corresponding with axis hole.

Owing to adopted such scheme, the utility model has carried out structural improvement to traditional radiator, utilizing three lobes that independently dispel the heat that the heat that led chip produces is carried out the heat conducting while, strengthened cross-ventilated effect by formed intercommunication type heat dissipation channel between the heat radiation lobe, and then strengthened the heat-sinking capability of light fixture, prolonged the service life of light fixture; Simultaneously, several led chips cooperate by the reflector close with the heat radiation valve structure, have strengthened the luminous efficiency of light fixture; It is simple in structure, good looking appearance, easy accessibility, has very strong practicality.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model embodiment;

Fig. 2 is the structural representation () of the radiator of the utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

As shown in Figure 1 and Figure 2, the convection heat dissipation type LED head lamp of present embodiment, it comprises lamp holder 10, led chip 20, reflector 30, diffuser 40 and radiator 50; Wherein, radiator 50 comprises the heat radiation lobe 52 that pedestal 51 is separate with three, separate, and offers 510, three heat radiations of axis hole lobe 52 at pedestal 51 and encircle being evenly distributed on the pedestal 51 of week centered by axis hole 510; For a change the radiator structure of conventional lamp is beneficial to heat radiation, and assurance aesthetic appearance, heat radiation lobe 52 is the dovetail groove body structure, specifically can be by facade 520, first side 521 and second side, 522 one bending formings, it is adjacent that angle between angle between first side 521 and the facade 520 and second side 522 and the facade 520 is 120 degree-150 degree, and certain slit is separated by between per two adjacent heat radiation lobes, form heat dissipation channel 70 with this, because each heat radiation lobe 52 all distributes centered by axis hole 510 in ring week, so each heat dissipation channel 70 can be interconnected by the view field of axis hole 510, form the radiator structure of intercommunication formula, strengthened cross-ventilated effect greatly, and then the heat-sinking capability of enhancing light fixture, the service life of prolongation light fixture.

Simultaneously, close with the version of heat radiation lobe 52 at reflector 30, and in the corresponding zone of reflector 30 and facade 520, offer installing port 31, can fix at least one led chip 60 on the installing port 31, with this, led chip 60 by with the cooperating of reflector 30, strengthened the luminous efficiency of light fixture; For making

reflector

30 and 52 firm the linking of heat radiation lobe, in the bottom of first side 521 and the junction of facade 520 and the bottom of second side 522 and the junction of facade 520 be provided with screens structure 523, the bottom of reflector 30 is provided with the card article that cooperates with 523 contrapositions of screens structure, thus, reflector 30 can be by card article and the chimeric realization of screens structure 523 and fixedlying connected of heat radiation lobe 52.

In addition, the fixing diffuser 50 in the outside of reflector 30, lamp holder 10 is dismountable type of attachment with pedestal 51, makes things convenient for production and assembly and the demolition and maintenance of light fixture.The top of three heat radiation lobes 52 draws tail 80 to bind by the decoration that is threaded, decoration draws tail 80 corresponding with axis hole 510, decoration draws tail 80 can adopt changeable surface structure, and light fixture can optionally be arranged in pairs or groups to decorate and be drawn tail 80, to enrich the aesthetic appearance of light fixture; Also can select to remove to decorate and draw tail 80 according to the heat radiation situation of reality, to guarantee radiating effect.

The LED modulated structure of present embodiment is simple, each critical piece all adopts independently isolating construction, and especially the structure of radiator 50 (i.e. heat radiation lobe 52 formed intercommunication type heat dissipation channels by separating) makes the LED light fixture that heat dispersion efficiently be arranged; Simultaneously, dismountable type of attachment of each parts also is convenient to the maintain and replace to each fault components and parts, has very strong practicality and market popularization value.

The above is preferred embodiment of the present utility model only, is not so limits claim of the present utility model, every equivalent structure or equivalent flow process of utilizing the utility model specification and accompanying drawing content to do

Conversion, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. convection heat dissipation type LED head lamp, it comprises lamp holder, led chip, reflector, diffuser and radiator, it is characterized in that: described radiator comprises pedestal and three lobes that independently dispel the heat, offer axis hole on the described pedestal, three described heat radiation lobes encircle being evenly distributed on the pedestal of week centered by axis hole; Described heat radiation lobe is the dovetail groove body structure, is formed with heat dissipation channel between two adjacent described heat radiation lobes, and each described heat dissipation channel is interconnected by the view field of axis hole; Offer installing port on the described reflector, at least one led chip is fixedly arranged on the described installing port; Described lamp holder and pedestal removably connect, and described reflector and diffuser are installed on the heat radiation lobe from the inside to the outside successively.

2. a kind of convection heat dissipation type LED head lamp as claimed in claim 1, it is characterized in that: described heat radiation lobe comprises facade, first side and second side, and the angle between described first side and the facade and the angle between second side and the facade are 120 degree-150 degree.

3. a kind of convection heat dissipation type LED head lamp as claimed in claim 2, it is characterized in that: the bottom of the bottom of the junction of described first side and facade and the junction of second side and facade is provided with the screens structure, the bottom of described reflector is provided with the card article that cooperates with the contraposition of screens structure, and described reflector is by card article and the chimeric realization of screens structure and fixedlying connected of heat radiation lobe.

4. a kind of convection heat dissipation type LED head lamp as claimed in claim 2 is characterized in that: the installing port of described reflector is opened in the corresponding zone of reflector and facade.

5. a kind of convection heat dissipation type LED head lamp as claimed in claim 1, it is characterized in that: the top of three described heat radiation lobes draws tail to bind by the decoration that is threaded, and described decoration draws tail corresponding with axis hole.