A kind of heat radiation lampshadeTechnical field
The utility model belongs to field of illumination lamp technology, and in particular to a kind of heat radiation lampshade.
Background technology
Existing industrial lighting equipment uses LED illumination lamp, LED illumination device to have long lifespan, save electric energy lamp substantiallyAdvantage, the LED lamp bead of existing LED illumination lamp are all to be directly installed on lampshade inside top, and be arranged for fanning outside lampshadeThe radiator of heat, the heat that LED lamp bead generates are conducted to radiator by lampshade, and radiator is dissipated by the space of surrounding againHeat, the air around radiator are only capable of through radiator, and the air velocity around radiator is slower, so leading to this lampshadeHeat dissipation performance is poor, especially lampshade inside top center, and heat is more difficult to distribute, and is easy to cause lampshade inside topThe excessively high damage LED lamp bead of temperature of center.
Invention content
The utility model provides a kind of heat radiation lampshade, the lamp for the poor drawback of lampshade heat dissipation performance in the prior artThe center for being provide with the substrate set is provided with through-hole, and air hole is provided on cover body, can make production inside the utility modelAnger stream, to enhance the heat dissipation performance of the utility model.
The goal of the invention of the utility model is achieved through the following technical solutions：A kind of heat radiation lampshade, including be used to pacifyThe substrate of LED lamp bead is filled, two planes up and down of substrate have been respectively fixedly connected with radiator, cover body, and the substrate center position is openedThere is a through-hole through substrate two planes up and down, the radiator is equipped with the heat dissipation channel that is connected to through-hole, inside the cover bodySpace is connected to through-hole, and the air hole being connected to the cover body external world is provided on cover body.
The heat that the LED lamp bead of be installed on substrate generates can pass to radiator by substrate and radiate, and LEDThe heat that lamp bead generates can make the atmosphere temperature rising near LED lamp bead, and cover body is equipped with the air hole being connected to the cover body external world, outsideBoundary's air can enter cover body by air hole, so the hot-air near LED lamp bead will produce an ascending air and pass through baseThrough-hole on plate enters the heat dissipation channel of radiator, and hot-air can flow to the external world by heat dissipation channel, to make the utility modelInside generates the air-flow for heat dissipation.
Preferably, the radiator includes several cooling fins of circumferentially array distribution, the seam between abutting finsGap constitutes heat dissipation channel, and cooling fin inner end is located above through-hole.When passing through cooling fin into the air of radiator out of through-holeHeat on cooling fin can be taken to the utility model external world to, to promote the heat dissipation performance of the utility model.
Preferably, the cover body is the flared structure that one end is gradually expanded to the other end, the cover body of flared structureIt is connected to through-hole.The opening of the cover body lower end of flared structure is the air hole, and the lower air of ambient temperature passes through thisAir hole enters in cover body, promotes to generate air-flow inside the utility model, one end of the cover body is fixedly connected with circular ring shape knotThe connecting plate of structure, connecting plate are fixedly mounted on substrate.
Preferably, the cooling fin is fixedly mounted on substrate, it is additionally provided with for fixing cooling fins on the cooling finSecuring plate, the cooling fin upper end is equipped with notch, and the securing plate is fixedly mounted on the gap position of cooling fin, securing plate energyThe structural stability for enhancing radiator, prevents the cooling fin on radiator from loosening.
Preferably, being fixedly connected with several fixed columns in the securing plate, cover board, the cover board are equipped with above securing plateIt is fixedly connected with fixed column upper end.Cover board is that the utility model is mounted on height by lamp bracket when use for installing lamp bracketPlace.
Preferably, being provided with several first heat emission holes on the cover board, cover plate central is provided with the second heat emission hole, the second heat dissipationHole is located at right over through-hole, and the first heat emission hole, the second heat emission hole are all connected to by the gap between cooling fin with through-hole.From through-holeHot-air out can flow to the external world by the first heat emission hole, the second heat emission hole, promote the heat dissipation performance of the utility model.
Preferably, the edge of the cover board is fixedly connected with the side plate extended downwardly, the lower end of the side plate is provided with moreA bayonet, the cooling fin are embedded in bayonet, an embedded cooling fin in a bayonet, and the bayonet on side plate also can be to heat dissipationPiece is reinforced, the structural strength of heat radiation device.
Preferably, being also provided with several mounting holes for installing lamp bracket on the cover board.Cover board passes through mounting hole and lampFrame connects.
Preferably, towards the end on the outside of radiator in addition to by substrate, cover board covering part on the cooling fin, remainingPosition is all fixedly connected with the protective plate of oriented radiator inner bending.For people in movement, installation the utility model, hand is easy contactTo radiator, the setting of protective plate can prevent the hand of cooling fin incised wound people, can play the role of protection to user.And it protectsThe setting of plate increases the surface area of cooling fin, to enhance the heat dissipation performance of cooling fin.
Preferably, the substrate lower plane is also installed with the transparent dust cover for wrapping up substrate lower plane, it is transparentDust cover is cirque structure, and the hollow part of the transparent dust cover of cirque structure is connected to the through-hole.It is new in this practicalityWhen type is assembled into lamps and lanterns, LED lamp bead is mounted on substrate lower plane, and transparent dust cover can completely cut off LED lamp bead and external environmentIt opens, prevents in dust adsorption to LED lamp bead.
Compared with prior art, the utility model has the advantages that：The components such as the through-hole by setting, this practicalityNovel inside when in use will produce air-flow, to make the utility model have preferable heat dissipation performance.The setting of through-hole, makes basePlate center will not mounted LED lamp bulb, existing LED lamp center is generally fitted with LED lamp bead, and the heat at center is not easyIt distributes, temperature is too high to cause LED lamp bead to be damaged, so the LED lamp bead quantity that can be installed on the substrate of unit areaLess, to limit the power of lamps and lanterns, the through-hole of substrate center's setting of the utility model has preferable heat dissipation performance, instituteGreater number and more powerful LED lamp bead can be installed in remaining position of substrate with the utility model, so as to carryThe power of lamps and lanterns is risen, illumination capability is promoted.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is radiator vertical view；
Fig. 3 is heat sink structure illustration；
Fig. 4 is cover board vertical view；
It is marked in figure：1, substrate, 2, radiator, 3, cover body, 4, through-hole, 5, cooling fin, 6, heat dissipation channel, 7, air hole,8, connecting plate, 9, securing plate, 10, notch, 11, fixed column, 12, cover board, the 13, first heat emission hole, 14, side plate, 15, bayonet, 16,Mounting hole, 17, protective plate, 18, dust cover, the 19, second heat emission hole.
Specific implementation mode
Represented embodiment is further described the utility model below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figs 1-4, a kind of heat radiation lampshade includes the substrate 1 for mounted LED lamp bulb, two plane up and down of substrate 1It is respectively fixedly connected with radiator 2, cover body 3, the cover body 3 is the flared structure that upper end is gradually expanded to lower end, the cover3 upper end of body is fixedly connected with the connecting plate 8 of cirque structure, and connecting plate 8 is fixedly mounted on the lower plane of substrate 1, the heat dissipationDevice 2 is fixedly mounted on the upper plane of substrate 1, and 1 center of the substrate is provided with the through-hole 4 through 1 upper and lower ends face of substrate, leads toThe central axis in hole 4 is overlapped with the central axis of connecting plate 8, and 3 inner space of cover body is connected to through-hole 4, is provided on the cover body 3With the extraneous air hole 7 being connected to of cover body 3；The radiator 2 includes multiple cooling fins 5 of circumferentially array distribution, adjacent heat radiationGap between piece constitutes heat dissipation channel 6, and cooling fin inner end is located above through-hole, and heat dissipation channel 6 is all connected to through-hole 4, describedCooling fin 5 is fixedly mounted on substrate 1, and 5 upper end of cooling fin is set there are one notch 10, and the radiator 2 further includes being useful for admittedlyDetermine the securing plate 9 of the cirque structure of cooling fin 5, the securing plate 9 is fixedly mounted on 10 position of notch of cooling fin 5, describedIt is fixedly connected in securing plate 9 there are three fixed column 11,11 upper end of fixed column is equipped with screw hole, and 9 top of the securing plate is equipped with cover board12, it is bolted between cover board 12 and fixed column 11, bolt is spirally connected with screw hole, and 12 upper end of the cover board is higher than cooling fin 5Upper end, opens that there are four the first heat emission holes 13 on the cover board 12, and 12 center of cover board is provided with the second heat emission hole 19, the second heat emission hole 19Right over through-hole 4, four the first heat emission holes 13 are arranged around the second heat emission hole 19, the heat dissipation of the first heat emission hole 13, secondHole 19 is all connected to by the heat dissipation channel 6 between cooling fin 5 with through-hole 4, and the edge of the cover board 12 is fixedly connected with to downwardThe side plate 14 stretched, 14 lower end of side plate are higher than the upper plane of securing plate 9, and the lower end of the side plate 14 is provided with multiple bayonets 15, describedCooling fin 5 is embedded in bayonet 15, also opens that there are four for installing the mounting hole 16 of lamp bracket on the cover board 12.
Towards the end in 2 outside of radiator in addition to by substrate 1,12 covering part of cover board, remaining position on the cooling fin 5It is all fixedly connected with the protective plate 17 of 2 inner bending of oriented radiator, the setting of protective plate 17 can prevent people in radiator of takingThe hand hurted sb.'s feelings is scraped when 2, and the setting of protective plate 17 increases the surface area of cooling fin 5, to enhance dissipating for cooling fin 5Hot property.
1 lower plane of the substrate is also installed with the transparent dust cover 18 for wrapping up 1 lower plane of substrate, new in this practicalityWhen type is assembled into lamps and lanterns, LED lamp bead is mounted on 1 lower plane of substrate, transparent dust cover 18 can by LED lamp bead and external environment everyIt opens absolutely, prevents in dust adsorption to LED lamp bead.Transparent dust cover 18 is cirque structure, the transparent dust-proof of cirque structureThe hollow part of cover 18 is connected to the through-hole 4, the air hole 7, the hollow part of transparent dust cover 18, leading on substrate 1The hollow part of the securing plate 9 of heat dissipation channel 6, cirque structure on hole 4, radiator 2 between abutting fins 5 and lidThe first heat emission hole 13 on plate 12 can form access, be convenient for air circulation, the air of circulation that can take away more heats, promoteSo that the heat that LED lamp bead generates is distributed, the heat dissipation performance of the utility model can greatly be promoted.
Specific embodiment described in text is only to be given an example to the spirit of the present invention.Belonging to the utility modelThose skilled in the art can make various modifications or additions to the described embodiments or using similarMode substitutes, but without departing from the spirit of the present application or beyond the scope of the appended claims.