CN104972742A - Light illuminating apparatus - Google Patents
Light illuminating apparatus Download PDFInfo
- Publication number
- CN104972742A CN104972742A CN201510157968.XA CN201510157968A CN104972742A CN 104972742 A CN104972742 A CN 104972742A CN 201510157968 A CN201510157968 A CN 201510157968A CN 104972742 A CN104972742 A CN 104972742A
- Authority
- CN
- China
- Prior art keywords
- fin
- base
- irradiation device
- light irradiation
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims abstract description 46
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 6
- 230000000694 effects Effects 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Led Device Packages (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention provides a light illuminating apparatus which is thin and light, and has a heat dissipation member with a high heat dissipation efficiency. The light illuminating apparatus for illuminating linear light includes: a substrate; a plurality of LED light sources arranged on the surface of the substrate with a designated interval; the heat dissipation member, which is composed of a platelike pedestal and a heat sink, wherein, the platelike pedestal extends from the back of the pedestal to a designated direction and dissipates heat generated by the LED light sources, and the heat sink is vertically arranged one side of the pedestal and has a plurality of fins extendedly arranged in a prescribed direction; a housing, which receives the heat dissipation member and forms a wind tunnel for surrounding the fins; a cooling fan, which guides the external air into the wind tunnel, and generates the air flow in the designated direction in the wind tunnel. One face of the pedestal and at least one face of other faces incline relative to the designated direction. A cross sectional area of the cross section, wherein, the cross section is perpendicular to the designated direction of the pedestal, is composed in a manner that the area reduces with away from the designated direction from the substrate.
Description
Technical field
The present invention relates to a kind of its have LED (Light Emitting Diode) as light source and irradiate the light irradiation device of linear light, particularly a kind of light irradiation device possessing the radiating component distributing the heat that LED produces.
Background technology
In the past, the printing equipment adopting the ultraviolet ink be cured by UV-irradiation to carry out printing is widely known by the people.This printing equipment sprays ink from the nozzle of shower nozzle to medium, then to the specking irradiating ultraviolet light be formed on medium.By UV-irradiation, specking solidifies and is fixed on medium, so also can have good printing effect for the medium of not easily absorbing fluid.This printing equipment, such as, on the books in patent document 1.
Printing equipment described in patent document 1, has: the supply unit of conveying printed medium; Be arranged in order in the conveying direction, and spray 6 shower nozzles of dark green, carmetta, yellow, black, the colored ink such as orange, green respectively; Be configured in the transporting direction downstream between each shower nozzle, make each shower nozzle be sprayed on 6 temporary fixing irradiation portions of the point-like ink temporary fixing (pegging) on printed medium; Point-like ink is solidified completely and is fixed on the irradiation of the solidification completely portion on printed medium.Printing equipment as described in Patent Document 1, by by point-like ink in solidification that is temporary fixing, that solidify these two stages completely, inhibit interpenetrating and the diffusion of specking between colored ink.
Temporary fixing irradiation portion described in patent document 1 is the top being configured in printed medium, and on printed medium irradiating ultraviolet light, i.e. so-called UV curing apparatus, it irradiates linear ultraviolet light on the width of printed medium.In order to lightweight and the densification of corresponding printing equipment self, in temporary fixing irradiation portion, adopt LED as light source, the width along printed medium is arranged multiple LED.
Prior art patent document
Patent document 1: Japanese invention patent 2013-252720 publication.
Summary of the invention
The technical problem to be solved in the present invention:
Temporary fixing irradiation portion is as described in Patent Document 1 such, when using using LED as light source, have following problem to produce: have in input electricity and a greater part ofly all can change heat into, so the heat sent of LED itself can reduce luminous efficiency and life-span.In addition, this problem, as temporary fixing irradiation portion, if when having carried multiple LED device, because the LED quantity as thermal source increases, will cause more serious problem.Therefore, at employing LED as in the light irradiation device of light source, the structure that the cooling structures such as fin (radiating component) suppress LED to generate heat can generally all be used.
In order to suppress the heating of LED, the radiating components such as fin are adopted to be effective.But, in order to more effectively make LED dispel the heat, needing the surface area as far as possible expanding radiating component, and once expand radiating component, just there is the overall excessive problem of device.Particularly as the temporary fixing irradiation portion in patent document 1, if the light irradiation device be configured between each shower nozzle adopts large-scale radiating component, just must expand the distance between each shower nozzle, re-quantization and the maximization of the printing equipment caused therefrom itself, will become more serious problem.
The present invention just in view of the foregoing, to provide a kind of frivolous, light weight and for the purpose of the light irradiation device having a high efficiency and heat radiation component.
The technical solution used in the present invention is:
In order to achieve the above object, light irradiation device of the present invention is a kind of on shadow surface, and the 1st direction extends, and on 2nd direction orthogonal thereto with the 1st direction, irradiate the light irradiation device of linear light having and specify live width, have: substrate, with the 1st direction and the 2nd direction almost parallel; Multiple LED (Light Emitting Diode) light source, is arranged in each appointed interval along the 1st direction on a surface of a substrate, with orthogonal thereto the 3rd direction in the 1st direction and the 2nd direction on penetrate light; Radiating component, its extend out to assigned direction by the back side from substrate and to the base of the tabular that the heat that LED light source produces spreads and the one side being vertically built up in base and the fin with the multiple fins being arranged on assigned direction form; Housing, while storage radiating component, and forms the wind-tunnel surrounding multiple fin; Cooling fan, is directed into extraneous air in wind-tunnel, and in wind-tunnel, produce the air-flow of assigned direction; At least one side in the one side of base and another side, relative assigned direction tilts, perpendicular to the cross-sectional area of the cross section of the assigned direction of base, along with from substrate along assigned direction away from and reduce.
According to this structure, for base and fin only extend the structure of assigned direction, the light irradiation device of light and thin type therefore can be realized.In addition, because of the cross-sectional area of vertical cross section on the assigned direction of base, with along with from substrate along assigned direction away from and reduce mode formed (that is, the base end part side (substrate-side) of base because of overstriking), so heat conveying capacity increases, can more efficiently by LED light source produce the leading section of heat delivery to base, and to be effectively expelled to by cooling fan in the air in wind-tunnel.In addition, compared with situation about together strengthening with base entirety, the volume of light irradiation device is little, even and if the material monolithic that application proportion is heavier on base also can realize lightweight.
In addition, this light irradiation device can be formed as follows: the one side of base tilts relative to assigned direction, and fin, with the minimizing of base cross-sectional area, correspondingly becomes large along assigned direction.According to this structure, form the inclination of respective seat one side and the larger fin of surface area, therefore radiating efficiency also becomes higher.In addition, in this case, the heat dissipation capacity of being distributed by base and fin, is formed in the mode of roughly fixing along assigned direction.
In addition, this light irradiation device can be formed as follows: the another side of base is the plane being parallel to the 1st direction and assigned direction, from this plane to the distance of fin front end, roughly fixing in a specified direction.
In addition, this light irradiation device can be formed as follows: the another side of base tilts relative to assigned direction, and the one side of base is parallel to the plane of the 1st direction and assigned direction, from this plane to the distance of fin front end, roughly fixing in a specified direction.
In addition, on the another side of base, the drive circuit driving multiple LED light source can be had.
In addition, preferably, fin is divided into multiple in a specified direction and is formed.
In addition, preferably, assigned direction be with the 3rd side in the opposite direction.
In addition, preferably, the thermal conductivity of base is higher than the thermal conductivity of fin.In addition, in this case, preferably, base is made of copper, and fin is made of aluminum.According to this structure, be formed as radiating effect high, and the fin of light weight.
In addition, can also have and be sandwiched between base and fin, by the heat conduction of base to the high heat-conducting plate of fin.
In addition, preferably, each LED light source has multiple LED element.
In addition, preferably, light is the light comprising the wavelength acting on ultraviolet curable resin.
The beneficial effect of the invention:
As mentioned above, according to the present invention, realize a kind of frivolous, light weight and possessed the light irradiation device of the radiating component of high cooling efficiency.
Accompanying drawing explanation
Fig. 1 is the outside drawing of the light irradiation device involved by embodiments of the present invention.
Fig. 2 is the figure of the internal structure of the light irradiation device illustrated involved by embodiments of the present invention.
Fig. 3 is the figure of the understructure of the light irradiation device illustrated involved by embodiments of the present invention.
Fig. 4 is the figure of the heat radiating fin structure of the light irradiation device illustrated involved by embodiments of the present invention.
Fig. 5 is the figure of the structure of the radiating component of the light irradiation device illustrated involved by embodiments of the present invention.
Fig. 6 is the ideograph of the relation between the radiating component of the light irradiation device illustrated involved by embodiments of the present invention and the interior air-flow produced of housing.
Fig. 7 is the ideograph of the relation between the radiating component of the light irradiation device illustrated involved by embodiments of the present invention and heat dissipation capacity.
Fig. 8 is the figure of the variation of the light irradiation device illustrated involved by embodiments of the present invention.
In figure:
1 light irradiation device
100 housings
102 air inlets
105 window portions
110 exhaust fans
200 light source cells
205 substrates
210 LED elements
215 LED drive circuits
300 control substrate
400 radiating components
410 bases
430 fin
Above 414a
Below 414b
434a bearing surface
434b fin forming surface
Detailed description of the invention
Below, by reference to the accompanying drawings embodiments of the present invention are described in further detail.Further, the identical or identical sign flag in corresponding position in figure, its explanation no longer repeats.
Fig. 1 is the outside drawing of the light irradiation device 1 involved by embodiments of the present invention, and Fig. 1 (a) is the plane of the light irradiation device 1 involved by embodiments of the present invention.In addition, Fig. 1 (b) is the right hand view of the light irradiation device 1 of Fig. 1 (a), Fig. 1 (c) is the ground plan of the light irradiation device 1 of Fig. 1 (a), and Fig. 1 (d) is the front elevation of the light irradiation device 1 of Fig. 1 (a).The light irradiation device 1 of present embodiment is that one is loaded on printing equipment, and make the light supply apparatus of ultraviolet curable ink or ultraviolet curable resin, it is configured in the top of thing to be illuminated, and thing relatively to be illuminated penetrates linear ultraviolet light.And, in this manual, as shown in the coordinate of Fig. 1, the direction that aftermentioned LED (Light Emitting Diode) element 210 penetrates ultraviolet light is defined as X-direction, the orientation of LED element 210 is defined as Y direction, and is described being defined as Z-direction with X-direction and the orthogonal thereto direction of Y direction.
Fig. 2 is the figure of the internal structure of the light irradiation device 1 illustrated involved by embodiments of the present invention.Fig. 2 (a) is plane perspective view when overlooking light irradiation device 1.In addition, Fig. 2 (b) is from side perspective view during right flank viewing light irradiation device 1.In addition, Fig. 2 (c) is from the front perspective view during viewing light irradiation device 1 of front.
As depicted in figs. 1 and 2, the light irradiation device 1 of present embodiment has: at the housing 100 (housing) of the ultra-thin box-shaped of inside storage light source cell 200 and radiating component 400 etc.; Be arranged on the window portion 105 of the glass penetrating ultraviolet light before housing 100; Be located at the back side of housing 100, discharge 3 exhaust fans 110 of the air in housing 100.In addition, in the bottom surface of housing 100, the air inlet 102 sucking extraneous air in housing 100, is formed.
The light irradiation device 1 of present embodiment, has in housing 100 inside: 4 light source cells 200, control substrate 300, radiating component 400 etc.
As shown in Fig. 2 (a) and (c), 4 light source cells 200, are close to along Y direction and arrange and be accommodated in housing 100.Each light source cell 200 has: the rectangular substrate 205 being parallel to Y direction and Z-direction; There are 4 LED elements 210 of identical characteristics; Drive the LED drive circuit 215 of 4 LED elements 210.
Under the state that 4 LED elements 210 are aligned in the X-axis direction at optical axis, separating appointed interval is in the Y-axis direction the surface that row are configured in substrate 205, and is electrically connected with substrate 205.Substrate 205 is formed as, by being placed in the not shown cable of LED drive circuit 215 above aftermentioned base 410 on 414a, connect each LED element 210, come from the drive current of LED drive circuit 215 by substrate 205 supply.Once supply drive current to each LED element 210, then penetrate the ultraviolet light of the corresponding light quantity of drive current from each LED element 210, be parallel to the linear ultraviolet light of Y direction from each light source cell 200 injection.And, in order to the ultraviolet light that each LED element 210 energy quantity of light emission of present embodiment is roughly the same, adjust being supplied to the drive current of each LED element 210, from the linear ultraviolet light that each light source cell 200 penetrates, there is roughly homogeneous light quantity distribution in the Y-axis direction.And, as mentioned above, 4 light source cells 200 of present embodiment, because being close to arrangement along Y direction, so the ultraviolet light penetrated from each light source cell 200, overlap in the Y-axis direction with the ultraviolet light penetrated from adjacent light source cell 200, on the whole (namely, from 4 light source cells 200), extend in the Y-axis direction, have in the Z-axis direction and specify the linear ultraviolet light of live width to be penetrated by window portion 105.And, each LED element 210 of present embodiment, have the LED chip (not shown) that multiple (such as 4) have roughly foursquare light-emitting area, accept the drive current from LED drive circuit 215, the ultraviolet light of injection wavelength 365nm.
Control substrate 300 be a kind of control the LED drive circuit 215 of each light source cell 200 while, also control the circuit substrate of light irradiation device 1 entirety.Control substrate 300, be that user receives input signal by not shown user interface, the ON/OFF realizing each light source cell 200 controls and brilliance control, and externally exports fault message by user interface.
Radiating component 400 is components that a kind of heat distributed 4 light source cells 200 dispels the heat.The radiating component 400 of present embodiment, be close to the back side of the substrate 205 of each light source cell 200 and configure, the base 410 of heat distributed by each LED element 210 of conduction and be close to base 410 and configure and the fin 430 that the heat of base 410 dispels the heat is formed (Fig. 2 (b)).
The plane of Fig. 3 to be the figure of the structure that base 410 is described, Fig. 3 (a) be base 410.In addition, Fig. 3 (b) carries out with the A-A line of Fig. 3 (a) sectional view that cuts off.In addition, Fig. 3 (c) is the front elevation of base 410.
The plane of Fig. 4 to be the figure of the structure that fin 430 is described, Fig. 4 (a) be fin 430.In addition, Fig. 4 (b) carries out with the B-B line of Fig. 4 (a) sectional view that cuts off.Fig. 4 (c) is the front elevation of fin 430.In addition, Fig. 4 (d) is the ground plan of fin 430, and Fig. 4 (e) is the back view of fin 430.
Fig. 5 illustrates the figure being combined the structure of the radiating component 400 formed by base 410 and fin 430.Fig. 5 (a) is the plane of radiating component 400.In addition, Fig. 5 (b) carries out with the C-C line of Fig. 5 (a) sectional view that cuts off, and Fig. 5 (c) is the front elevation of radiating component 400.In addition, Fig. 5 (d) is the ground plan of radiating component 400, and Fig. 5 (e) is the back view of radiating component 400.
Base 410 is a kind of by copper (thermal conductivity: 4.01 (W/cmK), proportion: 8.96 (g/cm
3)) form the component after processing, as shown in Figure 3, it has the substrate support 412 of the substrate 205 placing each light source 200, extends to the heat-conduction part 414 of X-direction minus side from substrate support 412.Substrate support 412, in the shape of rectangular plate-like being parallel to Y direction and Z-direction, the substrate 205 of each light source cell 200 is close to front 412a to be placed and fixes (Fig. 3 (c), Fig. 2 (b)).Therefore, the heat that each LED element 210 produces, is reached on base 410 by substrate 205, and reaches heat-conduction part 414.
As shown in Fig. 3 (b), heat-conduction part 414 has: the plate-like shape that cross section is tapered, and be parallel to X-direction and Y direction 414a above and after tilting by specified angle relative to 414a (that is, relative to X-direction) above below 414b.That is, the heat-conduction part 414 of present embodiment is configured to: the substrate support 412 placing substrate 205 is far away apart from X-direction, thickness of slab (namely, 414a and the distance below between 414b above) just become thinner (that is, the cross-sectional area being parallel to the cross section of Y direction and Z-direction diminishes gradually).As mentioned above, in the present embodiment, due to the base end part side (substrate-side) of overstriking heat-conduction part 414, therefore improve heat conveying capacity, and then the heat delivery effectively produced by each LED element 210 is to the front end of heat-conduction part 414.Further, although also can consider overall for heat-conduction part 414 overstriking from the angle of heat conveying capacity, because of heat-conduction part 414 (namely, base 410) in, have employed the copper that proportion is heavier, in the present embodiment, by adopting conical by its shape to reduce volume, thus reduce the increase of weight.In addition, by heat-conduction part 414 is done tapered shape, space can also be formed between heat-conduction part 414 and housing 100, so that the mode that can strengthen the size of aftermentioned radiating fin 440 is formed.
414a on heat-conduction part 414, is formed with multiple jut 414c of the LED drive circuit 215 of each light source cell of fixed support 200.In addition, the through multiple through hole 414d to 414b below of 414a above heat-conduction part 414 are formed.Through hole 414d is the screw hole of the screw (not shown) be inserted into for firm banking 410 and fin 430.In addition, in heat-conduction part 414, the through multiple through hole 414e to 414b of 414a above heat-conduction part 414 are formed.In detail as described later, through hole 414e is formed with airway, its by be sucked into from outside heat-conduction part 414 below the air of 414b side deliver to above 414a side.In addition, 414b below heat-conduction part 414, is extruded with the alignment pin 415 positioned fin 430.
Fin 430 is a kind of by aluminium (thermal conductivity: 2.37 (W/cmK), proportion: 2.70 (g/cm
3)) form the component after processing.As shown in Figures 4 and 5, it has: embed the fitting portion 432 of the substrate support 412 of base 410, extend out to rear (X-direction minus side) from fitting portion 432, the connecting portion 434 be connected with base 410.As shown in Fig. 4 (b) and (c), fitting portion 432 have the rectangular plate-like being parallel to Y direction and Z-direction plate-like portion 432a, protrude from the positive side of X-direction from the front of plate-like portion 432a and extend to a pair protuberance 432b of Y direction, and its cross section is コ font.In addition, plate-like portion 432a is formed with the opening 432c of shape in the form of a substantially rectangular when watching from X-direction.Opening 432c is when combining base 410 and fin 430, the opening that the heat-conduction part 414 for base 410 passes through.
Connecting portion 434, the shape of rectangular tabular, after combination base 410 and fin 430, its forming surface 434b that there is the bearing surface 434a relative with 414b below base 410 and define multiple radiating fin 440.As shown in Fig. 4 (b), the connecting portion 434 of present embodiment, tilt relative to X-direction in the angle identical with 414b below base 410, after base 410 and fin 430 combine, the mode being close to 414b below base 410 with the bearing surface 434a of connecting portion 434 is formed.Therefore, when base 410 combines with fin 430, the heat of base 410 can reach on fin 430.
Radiating fin 440, vertically sets up in the mode outstanding to Z-direction from the fin forming surface 434b of connecting portion 434, and is dissipated in air by the heat reaching fin 430.And, in detail as described later, in the present embodiment, by exhaust fan 110 by extraneous air suction casing 100, made the air be inhaled in the flowing of radiating fin 440 surface by the air-flow producing X-direction, radiating fin 440 is extended in the mode extended in X-direction.In addition, as shown in Fig. 4 (b), (d) and (e), the radiating fin 440 of present embodiment, is divided into multiple (4) in the X-axis direction and is formed.In addition, the overhang (size of radiating fin 440) of radiating fin 440, according to from fitting portion 432 along X-direction away from and become large, thus improve cooling effect.
As shown in Fig. 4 (a) and (c), on the bearing surface 434a of connecting portion 434, be formed with the embeded slot 435 that the alignment pin 415 for fin 430 embeds.In addition, on connecting portion 434, multiple screw hole 434c of firm banking 410 and fin 430 are formed.In addition, on connecting portion 434, be formed from the through multiple through hole 434d to forming surface 434b of the bearing surface 434a of connecting portion 434.And, after base 410 and fin 430 combine, the through hole 414d of base 410 is communicated with the screw hole 434c of fin 430, and the through hole 414e of base 410 is communicated with (Fig. 5 (a), (b)) with the through hole 434d of fin 430.
When assembling the radiating component 400 combined by base 410 and fin 430, at the heat-conduction part 414 of the opening 432c inserted base 410 of fin 430, and base 410 is pressed into X-direction minus side relative to fin 430, the fitting portion 432 of fin 430 embeds the substrate support 412 (Fig. 5) of base 410.Further, alignment pin 415 to be embedded in embeded slot 435 and base 410 and fin 430 are positioned, being close to make the bearing surface 434a of 414b and fin 430 below base 410.In addition, in this state, be tightened in screw hole 434c by through hole 414d.Thus, base 410 and fin 430 are completely fixed, and radiating component 400 has been assembled.
As mentioned above, in the present embodiment, the thickness of slab of heat-conduction part 414, X-direction is left far away then thinner from the substrate support 412 placing substrate 205, while the heat delivery that LED element 210 is produced to X-direction minus side, by making larger space on X-direction minus side, and forming larger radiating fin 440 in this space as far as possible, forming the radiating component 400 with high efficiency and heat radiation effect.In addition, by the high copper base 410 of combination thermal conductivity and thermal conductivity is slightly more weak than copper but the aluminum thermal fin 430 that proportion is lighter than copper forms radiating component 400, therefore light when radiating component 400 is made of copper than entirety, and than overall made of aluminum time radiating efficiency high.In addition, as mentioned above, the radiating component 400 of present embodiment, along X-direction rearward (that is, X-direction minus side) extend, form by outstanding Y direction and Z-direction.Therefore, the Y direction of light irradiation device 1 and the size of Z-direction can control to minimum.
Secondly, the cooling effect of the radiating component 400 of present embodiment is described.Fig. 6 is the ideograph be described the relation of the air-flow produced in radiating component 400 and housing 100.In addition, Fig. 7 is the ideograph be described the relation between radiating component 400 and heat dissipation capacity.
Shown in Fig. 6, the light irradiation device 1 of present embodiment, possesses 3 exhaust fans 110 at the back side of housing 100.In addition, the bottom surface of housing 100, is formed with the air inlet 102 sucking extraneous air in housing 100.Therefore, exhaust fan 110 1 rotates, and suck extraneous air from air inlet 102, the air in housing 100 is discharged from exhaust fan 110.Therefore, in housing 100, in Fig. 6, the air-flow that generation represents with solid arrow.That is, be sucked into the air in housing 100 from air inlet 102, flow along X-direction in the space surrounded by fin 430 and housing 100 (that is, being provided with the space of radiating fin 440).Therefore, produced by each LED element 210, and reach the heat (in Fig. 6, representing with dotted arrow) of fin 430 by substrate 205 and base 410, be dissipated in air by radiating fin 440.Like this, in the present embodiment, forming a kind of wind-tunnel with housing 100 and fin 430, by limiting the space of air current flow, effectively cooling.
In addition, in the present embodiment, the through hole 414e of base 410 is communicated with the through hole 434d of fin 430, is formed for being inhaled into the airway that the air in housing 100 passes through.Therefore, be inhaled into the air in housing 100, by through hole 434d and through hole 414e, also by the space of the 414a side above of heat-conduction part 414.Therefore, structure according to the present embodiment, the LED drive circuit 215 and the control substrate 300 that are configured in the 414a side above of heat-conduction part 414 also can cool.
In addition, as shown in Figure 7, the heat-conduction part 414 of the radiating component 400 of present embodiment, with along with from placing the substrate support 412 of substrate 205 away from X-direction, the mode of thickness of slab (that is, above 414a and the distance below between 414b) meeting thinning (cross-sectional area of namely vertical with X-direction cross section diminishes gradually) is formed.Further, in the space obtained passing through heat-conduction part 414 thinning, being formed along X-direction and becoming large radiating fin 440 gradually, to be formed in mode roughly fixing in the X-axis direction from 414a above base 410 to the distance of the front end of radiating fin 440.
At this, as considered the thermal resistance of base 410, through base 410 heat (namely, the heat that all LED elements 210 produce) Q1 (W), each light source cell 200 substrate 205 temperature (namely, the temperature of substrate support 412) and temperature difference Δ T (DEG C) of fin 430, the thermal resistance R (DEG C/W) of base 410, base 410 length (namely, the length of heat-conduction part 414) L (m), base 410 cross-sectional area (that is, the cross-sectional area of heat-conduction part 414) A (m
2), the relation of the thermal conductivity λ (W/m DEG C) of base 410, can be represented by formula (1) below and formula (2).
Q1(W)＝ΔT(℃)/R(℃/W) (1)
R(℃/W)＝L(m)/(A(m
2)×λ(W/m℃) (2)
As mentioned above, the heat that LED element 210 produces, heat-conduction part 414 is reached from the substrate support 412 of base 410, front (X-direction minus side) further to heat-conduction part 414 is spread, because being rejected heat to the air that is inhaled into from air inlet 102 by the radiating fin 440 of fin 430, so maximum in close substrate support 412 side through the heat Q1 of base 410, reduce gradually along with away from X-direction minus side.Therefore, in the present embodiment, as shown in Figure 7, disperse (namely by the heat Q1 of base 410 equably along X-direction, along with away from X-direction minus side gradually thermal resistance R become large), diminish (that is, the base end part side (substrate-side) of heat-conduction part 414 is thicker) gradually perpendicular to the cross-sectional area of the cross section of the X-direction of heat-conduction part 414.That is, the relative X-direction of 414b below base 410 is made to tilt by specified angle.Further, thus, below base 410,414b side ensure that the adequate space needed for radiating fin 440.
Specifically, as shown in Figure 7, the heat-conduction part 414 of present embodiment, there is in X-direction the length of about 80mm, suppose that the heat Q1 that all LED elements 210 produce is 200 (W), in order to make the heat dissipation capacity of the X-direction each position of heat-conduction part 414 impartial (25 (W)) separately, by the ratio of the cross-sectional area of each cross section when cutting off heat-conduction part 414 along the every 10mm of X-direction, be set as 1.00,0.85,0.72,0.61,0.52,0.44,0.38,0.32 successively from the side near substrate support 412.
Secondly, as considered the heat dissipation capacity of fin 430, the heat flow Q2 (W) of fin 430, the coefficient of overall heat transmission α (W/m of fin 430
2dEG C), the surface area B (m of fin 430
2), relation between the temperature of fin 430 and temperature difference Δ T (DEG C) of air be inhaled into from air inlet 102, represent by formula (3) below.
Q2(W)＝α(W/m
2℃)×B(m
2)×ΔT(℃) (3)
As shown in Figure 6, in the present embodiment, be configured to: be formed with air inlet 102, by carrying out the radiating fin 440 of cold sink 430 from air inlet 102 air be inhaled in housing 100 in the below of the base end side (210 sides of LED element) of fin 430.At this, the air in housing 100 is sucked into from air inlet 102, by fin 430 and housing 100 the space that surrounds (namely, be provided with the space of radiating fin 440) in flow along X-direction, therefore the air themperature of cooling heat dissipation fin 440, low at the base end side (LED element 210 side) of fin 430, uprise in the front of fin 430.That is, the Δ T (DEG C) in formula (3), becomes large at the base end side (LED element 210 side) of fin 430, diminishes in the front of fin 430.Therefore, in the present embodiment, due to the surface area B (m of fin 430
2) diminish at the base end side (LED element 210 side) of fin 430, become large in the front of fin 430, be therefore formed as the structure that the heat flow Q2 of fin 430 is impartial in X-direction each position.That is, become large mode with radiating fin 440 gradually along X-direction to be formed.
Like this, in the present embodiment, be configured to: below base 410,414b tilts by specified angle relative to X-direction, radiating fin 440 becomes large gradually along X-direction, and, thus, the heat Q1 being formed through base 410 is dispersed along X-direction, and the heat flow Q2 of fin 430 is along the homodisperse structure of X-direction.
Be more than the explanation made in conjunction with present embodiment, but the present invention is not limited to above-mentioned formation, can various distortion be carried out in technical thought range of the present invention.Such as, the light irradiation device 1 of present embodiment, although be the device of irradiating ultraviolet light, but is suitable for the present invention too on the device of irradiation light visible ray, infrared lights such as () such as white lights irradiating other wavelength region.
In addition, each LED element 210 of present embodiment, although have: the multiple LED chips being provided with roughly foursquare light-emitting area, but be not limited to this structure, such as, the LED chip of LED element 20, also can possess the light-emitting area beyond square, in addition, LED element 20 also can for the element of LED chip possessing more than 1.
In addition, in the present embodiment, be illustrated for being directly close to face with the bearing surface 434a of 414b and fin 430 below base 410, such as, also can below base 410 414b and fin 430 bearing surface 434a between establish high-termal conductivity graphite flake, or coating silicone grease, the close property both further improving.
In addition, in the present embodiment, base 410 and fin 430, to be illustrated as independent component, but base 410 and fin 430 also can integrally be formed.In addition, in this case, also below base 410 on 414b, the radiating fin 440 be made up of copper or aluminium can directly be formed.
In addition, the radiating component 400 of present embodiment, rear is extended (namely along X-direction, X-direction minus side) so that outstanding Y direction and Z-direction and form, but, be not limited to such structure, radiating component 400 extend direction, also can be arbitrary assigned direction (such as, Y direction or Z-direction).Further, in this case, although fin 430 also extends assigned direction, also housing 100 can be established, to adopt housing 100 and fin 430 and to form wind-tunnel (that is, covering fin 430).
In addition, in the present embodiment, although be through the heat Q1 of the base 410 and heat flow Q2 of fin 430 along the homodisperse structure of X-direction, if but 414b tilts relative to X-direction below base 410, and radiating fin 440 becomes large along X-direction, then can form the radiating component 400 with high efficiency and heat radiation effect, therefore not non-ly be confined to this structure.In addition, the heat-conduction part 414 of present embodiment, the ratio of the cross-sectional area of each cross section when often cutting off 10mm along X-direction, sequentially formed with 1.00,0.85,0.72,0.61,0.52,0.44,0.38,0.32 from the side near substrate support 412, but be not limited to this structure.
In addition, in the present embodiment, due to the surface area B (m of fin 430
2) diminish at the base end side (LED element 210 side) of fin 430, become greatly (namely in the front of fin 430, because radiating fin 440 becomes large gradually along X-direction), therefore in X-direction, everybody is set to impartial formation to the heat flow Q2 of fin 430, but is not limited to this structure.Such as, when the heat Q1 (W) that all LED elements 210 produce is less, also can form the radiating fin 440 of same size through front from the base end side of fin 430.In addition, in this case, below base 410,414b side is without the need to expanding radiating fin 440 requisite space, therefore also there is no need the relative X-direction of 414b below base plate 410 is tilted.Therefore, such as, as shown in Figure 8, also can be configured to, 414b below base 410 is replaced to the 414a above of base 410, the relative X-direction in 414a side above of base 410 is tilted, from the distance of 414b to the front end of radiating fin 440 below base 410, becomes roughly fixing in the X-axis direction.In addition, consider from the angle of heat conveying capacity, the base end part side (substrate-side) of heat-conduction part 414 can be slightly thicker than leading section side, such as, and the structure that also can tilt for 414a above base 410 and the relative X-direction of 414b below.
In addition, embodiment of disclosure, has made illustration in every respect, but should be understood that the present invention is not limited only to described embodiment.Scope of the present invention is not limited to above-mentioned explanation, it is intended to comprise according to claims, with the intention of Claims scope equalization, and all distortion included by it within the scope of.
Claims (13)
1. a light irradiation device, on shadow surface, the 1st direction extends, and on the 2nd direction orthogonal thereto with described 1st direction, irradiates the linear light having and specify live width;
It is characterized in that,
It possesses:
Substrate, itself and described 1st direction and described 2nd direction almost parallel;
Multiple LED light source, it is arranged in each appointed interval along described 1st direction on the surface of described substrate, with orthogonal thereto the 3rd direction in described 1st direction and described 2nd direction on penetrate light;
Radiating component, its extend out to assigned direction by the back side from described substrate and to the base of the tabular that the heat that described LED light source produces spreads and the one side being vertically located at described base and the fin with the multiple fins being arranged on described assigned direction form;
Housing, while it receives described radiating component, and forms the wind-tunnel surrounding described multiple fin;
Cooling fan, is directed into extraneous air in described wind-tunnel, and produces the air-flow of described assigned direction in described wind-tunnel;
At least one side in the one side of described base and another side, relatively described assigned direction tilts,
Perpendicular to the cross-sectional area of the cross section of the described assigned direction of described base, along with from described substrate along described assigned direction away from and reduce.
2. light irradiation device according to claim 1, is characterized in that,
The one side of described base, tilts relative to described assigned direction,
Described fin, along with the minimizing of the described cross-sectional area of described base, and becomes large along described assigned direction.
3. light irradiation device according to claim 2, is characterized in that,
The heat dissipation capacity shed by described base and described fin is roughly fixing along described assigned direction.
4. light irradiation device according to claim 2, is characterized in that,
The another side of described base, for being parallel to the plane in described 1st direction and described assigned direction, from this plane to the distance of described fin front end, described assigned direction is roughly fixing.
5. light irradiation device according to claim 1, is characterized in that,
The another side of described base, tilts relative to described assigned direction,
The one side of described base, for being parallel to the plane in described 1st direction and described assigned direction, from this plane to the distance of described fin front end, described assigned direction is roughly fixing.
6., according to the light irradiation device in Claims 1 to 5 described in any one, it is characterized in that,
On the another side of described base, have the drive circuit driving described multiple LED light source.
7., according to the light irradiation device in Claims 1 to 5 described in any one, it is characterized in that,
Described fin, described assigned direction is divided into multiple and is formed.
8., according to the light irradiation device in Claims 1 to 5 described in any one, it is characterized in that,
Described assigned direction, for described 3rd side in the opposite direction.
9., according to the light irradiation device in Claims 1 to 5 described in any one, it is characterized in that,
The thermal conductivity of described base is higher than the thermal conductivity of described fin.
10. light irradiation device according to claim 9, is characterized in that,
Described base is made of copper, and described fin is made of aluminum.
11., according to the light irradiation device in Claims 1 to 5 described in any one, is characterized in that,
Also have high heat-conducting plate, it is clipped between described base and described fin, by the heat conduction of described base to described fin.
12., according to the light irradiation device in Claims 1 to 5 described in any one, is characterized in that,
Described each LED light source, has multiple LED element.
13., according to the light irradiation device in Claims 1 to 5 described in any one, is characterized in that,
Described light is the light comprising the wavelength acting on ultraviolet curable resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134223.6A CN105799340B (en) | 2014-04-04 | 2015-04-03 | Light irradiation device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014077872 | 2014-04-04 | ||
| JP2014-077872 | 2014-04-04 | ||
| JP2015-024448 | 2015-02-10 | ||
| JP2015024448A JP6069382B2 (en) | 2014-04-04 | 2015-02-10 | Light irradiation device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610134223.6A Division CN105799340B (en) | 2014-04-04 | 2015-04-03 | Light irradiation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104972742A true CN104972742A (en) | 2015-10-14 |
| CN104972742B CN104972742B (en) | 2018-11-27 |
Family
ID=54269949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510157968.XA Expired - Fee Related CN104972742B (en) | 2014-04-04 | 2015-04-03 | Light irradiation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104972742B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144313A (en) * | 2019-06-13 | 2022-03-04 | Hoya株式会社 | Light source device |
| CN114929484A (en) * | 2019-10-11 | 2022-08-19 | Hoya株式会社 | Light irradiation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010110938A (en) * | 2008-11-05 | 2010-05-20 | Iwasaki Electric Co Ltd | Led irradiation device |
| JP2011005788A (en) * | 2009-06-26 | 2011-01-13 | Noritsu Koki Co Ltd | Ultraviolet light source unit |
| JP2012028097A (en) * | 2010-07-21 | 2012-02-09 | Nk Works Kk | Led light irradiation device and printing device |
| CN202984040U (en) * | 2013-01-05 | 2013-06-12 | 重庆天阳吉能科技有限公司 | High-power LED (light-emitting diode) light source curing machine |
-
2015
- 2015-04-03 CN CN201510157968.XA patent/CN104972742B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010110938A (en) * | 2008-11-05 | 2010-05-20 | Iwasaki Electric Co Ltd | Led irradiation device |
| JP2011005788A (en) * | 2009-06-26 | 2011-01-13 | Noritsu Koki Co Ltd | Ultraviolet light source unit |
| JP2012028097A (en) * | 2010-07-21 | 2012-02-09 | Nk Works Kk | Led light irradiation device and printing device |
| CN202984040U (en) * | 2013-01-05 | 2013-06-12 | 重庆天阳吉能科技有限公司 | High-power LED (light-emitting diode) light source curing machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144313A (en) * | 2019-06-13 | 2022-03-04 | Hoya株式会社 | Light source device |
| CN114144313B (en) * | 2019-06-13 | 2024-04-12 | Hoya株式会社 | Light source device |
| CN114929484A (en) * | 2019-10-11 | 2022-08-19 | Hoya株式会社 | Light irradiation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104972742B (en) | 2018-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI275192B (en) | Light emitting device package and back light unit for liquid crystal display using the same | |
| US20160348887A1 (en) | Light illuminating apparatus | |
| US7527409B2 (en) | Display unit | |
| CN104364974B (en) | The heat dissipation of connector on plate | |
| CN105799340A (en) | Light irradiation device | |
| CN105276411B (en) | Light irradiation device | |
| CN106104142B (en) | Lighting apparatus | |
| US10183482B2 (en) | Light irradiation apparatus with cooling mechanism | |
| US9494370B2 (en) | Homogeneous liquid cooling of LED array | |
| CN101435566A (en) | LED light fitting | |
| CN101368713A (en) | Heat radiator | |
| CN104972742A (en) | Light illuminating apparatus | |
| JP2014175265A (en) | Light-emitting device | |
| KR20170005664A (en) | Lighting device module | |
| CN103676433A (en) | Light source apparatus and projector apparatus | |
| KR101417729B1 (en) | A thermal conductivity sheet and lamp comprising the thermal conductivity sheet | |
| CN208381876U (en) | A kind of LED plant lamp | |
| CN207661451U (en) | Modularity LED light source device | |
| CN101307895B (en) | Backlight module | |
| CN101118035B (en) | Led assembly and use thereof | |
| EP3030066B1 (en) | Display device | |
| CN109565147A (en) | The method of light supply apparatus, projection display equipment and cooling semiconductor light-emitting elements | |
| US20240011607A1 (en) | Light source unit, light source device, and method for forming light source unit | |
| TW200910547A (en) | Heat sink | |
| JP2013229396A (en) | Heat sink and luminaire including the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 |