CN203336545U

CN203336545U - LED bulb lamp heat radiator

Info

Publication number: CN203336545U
Application number: CN2013203609968U
Authority: CN
Inventors: 江楠; 江风
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2013-06-21
Filing date: 2013-06-21
Publication date: 2013-12-11
Anticipated expiration: 2023-06-21

Abstract

The utility model discloses an LED bulb lamp heat radiator which comprises a plurality of cooling fins, a heat radiator body, a ventilation slot and a rib plate. The heat radiator body is of a cylindrical hollow structure, and the two ends of the cylindrical hollow structure are sealed through a top plate and a bottom plate; a mounting hole is formed in the sealed bottom board, and the rib plate is arranged in the cylindrical hollow structure. The cooling fins are of the bent thin plate structures, wherein the radius of the structures are gradually reduced along the heat radiator body from top to bottom; ventilation grooves are formed in the front faces and the rear faces of the surface of the cooling fins at intervals, the ventilation grooves are evenly distributed at the two faces of the thin plate of the cooling fins in a staggered mode, a lampshade installing groove is formed in the top end of the cooling fins, and threads are formed in the installing groove. According to the LED bulb lamp heat radiator, due to the fact that the rib plate is additionally arranged in the heat radiator body and the thickness of a cavity is reduced at the same time, heat in the cavity can be transferred out rapidly; meanwhile, the grooves formed in the front faces and the back faces of the cooling fins increase the heat radiation area on the basis that the intensity of the rib plate is not affected.

Description

The LED bulb lamp heat radiator

Technical field

The utility model relates to a kind of LED radiator, particularly relates to a kind of LED bulb lamp heat radiator, belongs to the LED lighting technical field.

Background technology

LED as the 4th generation lighting source, there are the characteristics such as energy-saving and environmental protection, the life-span is long, volume is little, and there is no ultraviolet ray and infrared ray in LED spectrum, heat is low and without stroboscopic, radiationless, and discarded object is recyclable, does not pollute,, containing characteristics such as mercury elements, do not belong to typical green illumination light source.More and more nervous along with global energy, and to the more and more attention of environmental protection, LED light source replacement progressively conventional light source, the trend that becomes light source of new generation is arranged.But cost must enter into consideration and the needs of moulding for the heat dissipation design of LED light fixture, and this has limited heat dissipation design.So cost and heat radiation become the development of restriction LED light fixture always.The LED bulb lamp is a kind of in the LED light fixture, usually all applies to general lighting, and it generally all utilizes the free convection at the radiator position of light fixture to be dispelled the heat, so the heat radiation quality of radiator has determined the service life of LED bulb lamp.

The utility model content

The purpose of this utility model is in the situation that keep a kind of LED bulb lamp heat radiator good heat radiating, the material of saving radiator, reduce manufacturing cost.

The utility model purpose is achieved through the following technical solutions:

The LED bulb lamp heat radiator, comprise radiating fin and heat radiator body; This LED bulb lamp heat radiator also comprises ventilation slot and gusset; Described heat radiator body is the cylinder hollow structure, and cylinder hollow structure two ends are by top board and base plate sealing; Be provided with installing hole on the base plate of sealing, in the cylinder hollow structure, be provided with gusset; Radiating fin is a plurality of, and radiating fin is for being the bending thin-slab structure that radius reduces gradually along the heat radiator body top to bottom; A plurality of radiating fins are along the circumferentially even interval of heat radiator body layout, and the girth that spacing therebetween is heat radiator body is divided by the fin number; At the ventilation slot that is provided with at the tow sides interval on the surface of radiating fin, ventilation slot staggers and is uniformly distributed on the two sides of radiating fin thin plate, the distance between first ventilation slot and heat radiator body edge be 4 ?8mm, between all the other two ventilation slots, be separated by 6 ?12mm; Offer the lampshade mounting groove on the radiating fin top, mounting groove is provided with screw thread.

Preferably, the degree of depth of described ventilation slot be 0.2 ?0.5mm.The groove width of described ventilation slot be 1 ?3mm.The diameter range on described radiating fin top is 3 times of heat radiator body.Described gusset has many, and an end of many gussets links together, and the other end is connected with cylinder hollow inner structural wall upper and lower side respectively, or an end of many gussets links together, and other end cylinder hollow structure base slab respectively is connected with inwall.

The carrier of the utility model heat radiator body external cooling fin, at first heat passes on heat radiator body, then by body, is passed on radiating fin, and most heats that last LED produces are shed through free convection in air by radiating fin.The heat radiator body cavity almost becomes enclosure space after light fixture is encapsulated, and if the heat in cavity can not distribute quickly, can affect the heat radiation of the integral body of light fixture so, therefore add gusset in cavity again, due to adding of gusset, the cavity wall of heat radiator body can be thinner than the ordinary lamp and lantern, and this two aspects comprehensive function can make the heat in cavity transmit out fast.Radiating fin is in the heat radiator body outer surface, be the crooked laminated structure little to the place's gradual change of lamp tail by low side, fluting at the tow sides interval on the surface of fin, can save material again in increasing heat radiation area, according to the field synergistic principle, open Cao vertical with heat radiator body and more be conducive to heat radiation than Cao parallel with body simultaneously.

The beneficial effects of the utility model are: owing to adding gusset in heat radiator body, attenuate cavity wall thickness, can transmit the heat in cavity out fast simultaneously; Simultaneously on radiating fin, positive and negative is recessed on the basis of the intensity that does not affect gusset, has increased area of dissipation, under the comprehensive function at this aspect two, makes the utility model when the LED bulb lamp with general reaches the same radiating effect, more saves material.

The accompanying drawing explanation

Fig. 1 is the structural representation of this practical LED bulb lamp heat radiator;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the front view of Fig. 1;

Fig. 4 be Fig. 3 A ?A to cutaway view.

Shown in figure: mounting groove 1, ventilation slot 2, radiating fin 3, gusset 4, installing hole 5 and heat radiator body 6.

The specific embodiment

For understanding better the utility model, below in conjunction with accompanying drawing, the utility model is further described, but embodiment of the present utility model is not limited to this.

A kind of LED bulb lamp heat radiator, comprise radiating fin 3, ventilation slot 2, gusset 4 and heat radiator body 6; Heat radiator body 6 is the cylinder hollow structure, and cylinder hollow structure two ends are by top board and base plate sealing; Be provided with installing hole 5 on the base plate of sealing, fix for the installation between heat-radiating substrate and radiator; The cylinder hollow structure is provided with gusset 4, gusset 4 has many, and an end of many gussets 4 links together, and the other end is connected with cylinder hollow inner structural wall upper and lower side respectively, or an end of many gussets 4 links together, the other end is connected with inwall with the cylinder hollow structure base slab respectively; Due to adding of gusset 4, the cavity wall of heat radiator body 6 can, than the wall thickness of ordinary lamp and lantern, be conducive to dispel the heat by the cylinder hollow structure.Radiating fin 3 is a plurality of, and radiating fin 3 is for being the bending thin-slab structure that radius reduces gradually to bottom along heat radiator body 6 tops; A plurality of radiating fins 3 are along the circumferentially even interval of heat radiator body 6 layout, and radiating fin is uniformly distributed along heat radiator body one circle, and spacing is that the heat radiator body girth is divided by the fin number therebetween; Be provided with ventilation slot 2 at the tow sides interval on the surface of radiating fin 3, ventilation slot 2 staggers and is uniformly distributed on the two sides of radiating fin 3 thin plates, between first ventilation slot and heat radiator body 6 edges the distance be 4 ?8mm, between all the other two ventilation slots, be separated by 6 ?12mm; Radiating fin need to have certain intensity, so the degree of depth of ventilation slot should not surpass 0.5mm, be preferably 0.2 ?0.5mm; Offering ventilation slot effectively increases area of dissipation, so in the degree of depth one regularly, the area of dissipation of the wider increase of ventilation slot is larger, for heat spreader structures has certain intensity, the groove width of ventilation slot should not surpass 3mm, is preferably 1 ?3mm.Adding when being located at increasing heat radiation area of ventilation slot can be saved material again.Offer lampshade mounting groove 1 on radiating fin 3 tops, mounting groove 1 is provided with screw thread, and lampshade can directly be screwed on mounting groove, and such space in lampshade that is arranged so that is connected with the external world by the space between fin, strengthened cross-ventilation, this is conducive to shedding of the interior heat of lampshade.The diameter on radiating fin 3 tops is 3 times of heat radiator body diameter.

Preferably, a kind of radiating fin 3 of LED bulb lamp heat radiator and heat radiator body 6 are disposal molding.

The utility model heat radiator body 6 is carriers of external cooling fin, and at first heat passes on heat radiator body, then by heat radiator body 6, is passed on radiating fin 3, and most heats that last LED produces are shed through free convection in air by radiating fin.

Be conducive to attenuate heat radiator body 6 for the wall thickness of cylinder hollow structure owing to adding gusset 4 in heat radiator body 6, also help by gusset and heat is delivered on thin heat radiator body 6 as early as possible, thereby can transmit the heat in cavity out fast; On radiating fin, positive and negative is provided with ventilation slot simultaneously, on the basis of the intensity that does not affect radiating fin 3, increased area of dissipation, under the comprehensive function at this aspect two, make the utility model in more general LED bulb lamp better heat-radiation effect, and more save material.

Claims

1.LED bulb lamp heat radiator, comprise radiating fin and heat radiator body; It is characterized in that: this LED bulb lamp heat radiator also comprises ventilation slot and gusset; Described heat radiator body is the cylinder hollow structure, and cylinder hollow structure two ends are by top board and base plate sealing; Be provided with installing hole on the base plate of sealing, in the cylinder hollow structure, be provided with gusset; Radiating fin is a plurality of, and radiating fin is for being the bending thin-slab structure that radius reduces gradually along the heat radiator body top to bottom; A plurality of radiating fins are along the circumferentially even interval of heat radiator body layout, and the girth that spacing therebetween is heat radiator body is divided by the fin number; At the ventilation slot that is provided with at the tow sides interval on the surface of radiating fin, ventilation slot staggers and is uniformly distributed on the two sides of radiating fin thin plate, the distance between first ventilation slot and heat radiator body edge be 4 ?8mm, between all the other two ventilation slots, be separated by 6 ?12mm; Offer the lampshade mounting groove on the radiating fin top, mounting groove is provided with screw thread.

2. LED bulb lamp heat radiator according to claim 1 is characterized in that: the degree of depth of described ventilation slot be 0.2 ?0.5mm.

3. LED bulb lamp heat radiator according to claim 1 is characterized in that: the groove width of described ventilation slot be 1 ?3mm.

4. LED bulb lamp heat radiator according to claim 1, it is characterized in that: the diameter range on described radiating fin top is 3 times of heat radiator body.

5. LED bulb lamp heat radiator according to claim 1, it is characterized in that: described gusset has many, one end of many gussets links together, the other end is connected with cylinder hollow inner structural wall top and bottom respectively, or an end of many gussets links together, the other end is connected with inwall with the cylinder hollow structure base slab respectively.