CN204534353U - LED illumination utensil - Google Patents
LED illumination utensil Download PDFInfo
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- CN204534353U CN204534353U CN201520218115.8U CN201520218115U CN204534353U CN 204534353 U CN204534353 U CN 204534353U CN 201520218115 U CN201520218115 U CN 201520218115U CN 204534353 U CN204534353 U CN 204534353U
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- guide plate
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- appliance body
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Abstract
The relative position deviation and the LED illumination utensil that can improve incident efficiency that can prevent LED chip and the incident end face of light guide plate are provided.The upper LED illuminating part be housed in appliance body irradiates light to the incident end face opposed relative to the light source of LED illuminating part.Upper light guide plate makes light from the planar exit intersected with incident end face.Protuberance outstanding on the thickness direction of upper light guide plate is provided with at incident end face.In addition, upper LED illuminating part has circuit substrate and by upper retainer fixing for circuit substrate.At upper retainer, the position separating predetermined distance clipping protuberance is provided with at least one pair of projecting strip part.Therefore, protuberance is clipped by a pair projecting strip part, so protuberance is limited relative to the movement of upper retainer along the direction parallel with the length direction of incident end face.Thus, upper light guide plate is located, so can carry out the location of the incident end face of LED chip and upper light guide plate and improve incident efficiency along the direction parallel with the length direction of incident end face relative to upper retainer.
Description
Technical field
The utility model relates to via the LED illumination utensil of light guide plate irradiation from the light of light source.
Background technology
Conventionally, there is known irradiate the LED illumination utensil (lighting device) (for example, referring to patent document 1) from the light of light source via light guide plate.
LED illumination utensil described in patent document 1 is the mounted model (so-called pendent lamp) hung from the installation surface of ceiling etc.Two lines that LED illumination utensil described in patent document 1 has the fixed part be fixed on ceiling, possesses the Lighting Division of light source and hung from fixed part by Lighting Division.
Lighting Division has two the light source modules being provided with multiple LED chip in LED-baseplate and two light guide plates corresponding to the setting of each light source module.Light guide plate has for the incident end face from the light incidence of light source module.Incident end face is opposed with light source module and configure.Light guide plate is by internally guide-lighting by the light from the outgoing of light source module and throw light on from the upper and lower planar exit intersected with incident end face.
Patent document 1: Japanese Unexamined Patent Publication 2014-032827 publication
Utility model content
In above-mentioned LED illumination utensil in the past, by the base end part of light guide plate is installed with light guide plate along thickness direction clamping.Therefore, not moving-limiting on the direction in the direction, face along light guide plate, so when the relative position difference in offset of incident end face and LED chip, incident efficiency likely declines.
The utility model is made in order to the problem solved in the past, and object is to provide a kind of LED illumination utensil that can prevent the decline of incident efficiency.
LED illumination utensil of the present utility model possesses: appliance body; Power supply unit; LED illuminating part, luminous by the power supply supply from above-mentioned power supply unit; And light guide plate, configure in the mode that incident end face is opposed relative to the light source of above-mentioned LED illuminating part, and make light from the planar exit intersected relative to above-mentioned incident end face; Above-mentioned light guide plate has protuberance outstanding from the above-mentioned plane of intersecting relative to above-mentioned incident end face in a thickness direction; Above-mentioned LED illuminating part has: circuit substrate, is installed with multiple LED chip as above-mentioned light source along rectilinear direction; And retainer, keep foregoing circuit substrate and be fixed on above-mentioned appliance body; Above-mentioned retainer comprises at least one pair of projecting strip part opposed with the above-mentioned plane of above-mentioned light guide plate; At least one pair of projecting strip part above-mentioned is arranged on the position of the distance separating regulation on the direction along above-mentioned plane, so as between clip the above-mentioned protuberance of above-mentioned light guide plate.
The utility model is provided with protuberance outstanding on the thickness direction of light guide plate on the incident end face of light guide plate, and on retainer, the plane along light guide plate is provided with a pair projecting strip part in the position clipping protuberance.Therefore, the utility model can provide a kind of LED illumination utensil with the location easily can carrying out the incident end face of LED chip and light guide plate, the effect that can prevent the incident efficiency of incident end face from declining.
Accompanying drawing explanation
Fig. 1 observes the stereogram LED illumination utensil about embodiment of the present utility model being arranged on the state on ceiling face from below.
Fig. 2 is from the stereogram of top view about the LED illumination utensil of embodiment of the present utility model.
Fig. 3 is the sectional view of the LED illumination utensil about embodiment of the present utility model.
Fig. 4 be about the upper LED illuminating part of the LED illumination utensil of embodiment of the present utility model near sectional view.
Fig. 5 is the stereogram from top view upper cover.
Fig. 6 is the amplification view of upper cover.
(A) of Fig. 7 is the stereogram by observing upper light guide plate from below, and (B) of Fig. 7 is the amplification view of B-B position in Fig. 7 (A).
(A) of Fig. 8 is the amplification view of VIII part in Fig. 7, and (B) of Fig. 8 is the sectional view of B-B position in Fig. 8 (A).
(A) of Fig. 9 is the stereogram observing the state being installed with LED illuminating part, lower LED illuminating part and ring-type LED illuminating part on appliance body from below, and (B) of Fig. 9 is the sectional view of B-B position in Fig. 9 (A).
(A) of Figure 10 observes the stereogram being installed with the retainer of circuit substrate from outside, (B) of Figure 10 is the sectional view of B-B position in Figure 10 (A).
Figure 11 is the stereogram of the position relationship representing the protuberance of light guide plate and the projecting strip part of upper retainer.
(A) of Figure 12 is the front view of retainer, and (B) of Figure 12 is the upward view of retainer, and (C) of Figure 12 is the side view of retainer.
(A) of Figure 13 observes the stereogram being installed with the retainer of heat sink from inner side, (B) of Figure 13 is the amplification stereogram of jut.
(A) of Figure 14 is the sectional view of the cross sectional shape representing central lens, and (B) of Figure 14 is the sectional view of the variation of the cross sectional shape representing central lens.
Description of reference numerals
10LED ligthing paraphernalia; 20 appliance bodies; 22 mounting adapters (power supply unit); LED illuminating part (LED illuminating part) on 30; Retainer (retainer) on 31; 312 projecting strip parts; 313 covering parts; 32 circuit substrates; 322LED chip; 331 contact sites; 332 supports; 333 juts; 35 fixing Screws; 40 times LED illuminating parts (LED illuminating part); 41 times retainers (retainer); Light guide plate (light guide plate) on 50; 501 lower surfaces (plane); 521,621 incident end faces; 53 protuberances; 531 auxiliary incident end faces; 60 times light guide plates (light guide plate).
Detailed description of the invention
Below, the LED illumination utensil of accompanying drawing to embodiment is used to be described.
As shown in Figure 1, the LED illumination utensil 10 of embodiment is arranged on such as ceiling face 11, is mainly used in below to throw light on.
In addition, in the following description, under the state that LED illumination utensil 10 is arranged on ceiling face 11, side, ceiling face 11 is set to " on ", the side (i.e. ground side) contrary with ceiling face 11 is set to D score.
First, the overall structure of general description LED illumination utensil 10.
As shown in Figures 1 and 2, LED illumination utensil 10 has the appliance body 20 be arranged on ceiling face 11.
Light guide plate (light guide plate) 50 is configured with in the downside of appliance body 20.In the downside of upper light guide plate 50, the upper cover (hold assembly) 51 as the 1st hold assembly from light guide plate 50 on lower side bearing is arranged on appliance body 20.Upper cover 51 is parts of non-light transmittance.
As shown in Figures 1 and 3, lower light guide plate (light guide plate) 60 is configured with in the downside of upper cover 51.The lower cover 61 of the opaqueness of light guide plate 60 under lower side bearing is provided with in the downside of lower light guide plate 60.
Lower cover 61 entirety is in disc-shape.In the inner side of lower cover 61, the inner circumferential along lower cover 61 is provided with discoid central lens (translucent cover) 70.
In the inner side of central lens 70 so that the mode of dismounting discoideus lid 71 can be installed with.
Below, each constituting parts is described in detail.
As shown in Figures 2 and 3, appliance body 20 is such as formed as substantially cylindrical shape by the metal integral of aluminium etc.Par 23 is provided with at the central portion of appliance body 20.In the central authorities of par 23, there is opening 21.Be provided with at opening 21 and be connected to source power supply and the mounting adapter (power supply unit) 22 supplying electric power.Mounting adapter (power supply unit) 22 is installed on the furred ceiling (diagram is omitted) of installation on ceiling face 11.In addition, on the upper surface of par 23, multiple (being such as three here) elastic supporting part 26 is installed.
As shown in Figure 4, appliance body 20 bends in the mode tilted laterally downward from the outer circumference end of the par 23 of central authorities and is formed with wall 24.The outer lateral buckling relative to center from the bottom of wall 24 to appliance body 20 and extend horizontal part 25.Horizontal part (the 2nd hold assembly) 25 is worked in coordination with upper cover 51 (the 1st hold assembly) and clamps light guide plate 50 in a thickness direction.The top (outer peripheral edge) of horizontal part 25 is folded back as cross section toroidal, is provided with the abutting part 251 abutted with upper light guide plate 50.Horizontal part can be also one with appliance body 20, also can be attached on appliance body as the setting of independent parts and arrange.
Wall 24 is corresponding with the configuration of upper LED illuminating part (LED illuminating part) 30 described later and be formed as overlooking such as hexagon.Each wall 24 is formed as each side of hexagon prism (also with reference to Fig. 2).
Thus, under the state that lid 71 (with reference to Fig. 1) is pulled down, by mounting adapter 22 being installed to electrical connection and mechanical connection on furred ceiling, thus appliance body 20 is installed on ceiling face 11.Now, elastic supporting part 26 is closely contacted on appliance body 20 and ceiling face 11 by elastic deformation between appliance body 20 and ceiling face 11, thus by appliance body 20 without fixing with rocking.
As shown in Figures 4 and 5, upper cover 51 is in the integral circular shape shape in central authorities with opening portion 511.Opening portion 511 is corresponding with the configuration of lower LED illuminating part (LED illuminating part) 40 described later, is here formed as overlooking hexagon, is provided with locking wall 514 along opening portion 511.Locking wall 514 carries out the location of lower LED illuminating part 40 described later.
The peripheral part of upper cover 51 is provided with inclined plane (taper seat) 512 in the mode risen toward the outer side.The top (upper end) of inclined plane 512 is the hold assemblies of the side that the deadweight of upper light guide plate 50 acts on, and on top, is formed with groove 513 (with reference to Fig. 6) at the upper surface opposed with upper light guide plate 50 throughout complete cycle.Groove 513 is formed in the position roughly opposed with the abutting part 251 of the horizontal part 25 of appliance body 20.
In groove 513, be provided with the elastomeric element 54 overlooking ring-type.As elastomeric element 54, French flannelette (polyester) can be used when requiring insect protected and sealing.In addition, when requiring sealing, the Sunferon (Japanese: Port リ ウ レ タ Application サ Application Off エ Le ト サ Application Off エ ロ Application) of the Sun felt company of polyurethane foam or polyurethane can be used.
Elastomeric element 54 can inject and be filled into groove 513, but also can be pre-formed as being pressed in groove 513 after O shape round.The cross sectional shape be pre-formed as the elastomeric element 54 of O shape round both can be circular, or also can be rectangular-shaped.
In addition, in the present embodiment, exemplified with the situation being only provided with elastomeric element 54 in the groove 513 of the upper cover 51 as the hold assembly of in a pair hold assembly, but also as on the horizontal part 25 of another hold assembly, also elastomeric element can be set.
As shown in Figures 3 and 4, between the horizontal part 25 and upper cover 51 of appliance body 20, carry light guide plate 50.
As shown in (A) of Fig. 7, upper light guide plate 50 entirety, in circular plate shape, has hollow bulb 52 in central authorities.Hollow bulb 52 with to be bearing on appliance body 20 and to be configured to hexagonal upper LED illuminating part 30 ((A) with reference to Fig. 9) corresponding and be formed as overlooking hexagon.The medial surface of hollow bulb 52 is for 6 incident end faces 521 from the light incidence of upper LED illuminating part 30, from the plane of intersecting relative to incident end face 521 (upper surface, lower surface 501) emergent light.In addition, upper light guide plate 50 can arrange rib or printed article to carry out distribution controls on surface (such as lower surface 501).
The acies portion of hollow bulb 52 side of upper light guide plate 50 on lower surface (plane) 501 is provided with protuberance 53.
As shown in (B) of Fig. 7, protuberance 53 is by with watering interruption-forming on ester moulding during light guide plate 50.Protuberance 53 is such as in the trapezoidal shape that top attenuates along with the lower surface 501 away from upper light guide plate 50.Protuberance 53 has the auxiliary incident end face 531 along the face identical with the incident end face 521 of upper light guide plate 50, and has inclined plane (side) 532 with auxiliary incident end face 531 opposition side.In addition, two end faces 533 (with reference to Figure 11) of the length direction of protuberance 53 tilt in a direction close to each other along with the lower surface 501 away from upper light guide plate 50.
As shown in (A) of Fig. 7, overlook the point of intersection of overlooking each bight, i.e. 6 incident end faces 521 of hexagonal hollow bulb 52 being formed, be provided with and overlook mediad radiation direction with the notch part of given size continuous print U-shaped (slit) 55 from upper light guide plate 50.As shown in (A) of Fig. 8 and (B) of Fig. 8, on the lower surface 501 of upper light guide plate 50, be provided with the rib 56 along the outstanding overall U-shaped of the edge part of each notch part 55 downwards.
As shown in (B) of Fig. 8, upper light guide plate 50 is fixed on appliance body 20 by fixing Screw 57 via notch part 55.Fixing Screw 57 have have instrument to engage and the head 571 of external diameter notch part 55 can not inserted, with head 571 continuously and the axle portion 572 that notch part 55 can be inserted and the threaded portion 573 screwed togather continuously and with appliance body 20 with axle portion 572.In addition, the seat surface of head 571 is installed with soft packing ring 574.
In addition, the axial length L1 in axle portion 572 is more than aggregate value L2 of the gauge of upper light guide plate 50 and the outstanding size of rib 56.Thus, when being fixed to appliance body 20 by upper light guide plate 50, if be tightened on appliance body 20 by fixing Screw 57, then soft packing ring 574 is connected on the lower surface 561 of rib 56 lightly, by upper light guide plate 50 suspension bearing.
Thus, upper light guide plate 50, using to be installed on appliance body 20 with fixing Screw 57 as the notch part 55 of base end part and to be connected on the lower surface of horizontal part 25 of appliance body 20, is supported from below by the elastomeric element 54 of the upper end of the inclined plane 512 of upper cover 51.
As shown in Figures 3 and 4, between the horizontal part 25 and upper cover 51 of appliance body 20, LED illuminating part 30 is accommodated.Upper LED illuminating part 30 has upper retainer (retainer) 31 and circuit substrate 32.Upper retainer 31 is set on the lower surface that the inner side of appliance body 20 is connected to par 23.Upper LED illuminating part 30 corresponds to the configuration (being hexagon) of wall 24 here and is provided with 6 (with reference to Fig. 9 (A)).
As shown in (A) of Figure 10 and Figure 12, the overall rectangular frame-shaped of upper retainer 31, is provided with the opening portion 311 of substantially C-shaped at central portion.
Upper retainer 31 has from lateral surface 314 at least one pair of (being a pair here) projecting strip part 312 that upwards light guide plate 50 side is outstanding.
As shown in figure 11, a pair projecting strip part 312 is located at the position of two end faces 533 of the length direction clipping protuberance 53.Projecting strip part 312 is formed as taper, the such as trapezoidal shape ((B) with reference to Figure 10) that projecting height increases from the end apart from upper light guide plate 50 comparatively distally (downside) towards incident end face 521 side (upside).
In addition, preferably covering part 313 is set between a pair projecting strip part 312 of upper retainer 31.The inclined plane 532 of the protuberance 53 of upper light guide plate 50 covers by covering part 313 ((B) with reference to Fig. 7).In addition, upper retainer 31 is provided with the gap of such as about 0.5mm, and to make, covering part 313 is not closely contacted in the inclined plane 532 of protuberance 53, projecting strip part 312 is not closely contacted on the end face 533 of protuberance 53.
As shown in (A) of Figure 10 and (B) of Figure 10, in the opening portion 311 of upper retainer 31, circuit substrate 32 is installed.Circuit substrate 32 is installed with multiple LED chip 322 with linearity on installed surface 321.In addition, on the length direction both ends of circuit substrate 32, the connector 323 being provided with the supply for accepting lighting electric power from mounting adapter 22 or being electrically connected with other adjacent circuit substrates 32.
Upper retainer 31 and under light guide plate 50 is arranged on appliance body 20 state, each LED chip 322 keeps the interval of regulation and opposed relative to the incident end face 521 of upper light guide plate 50.
As shown in (A) of Figure 13, heat sink 33 installed by upper retainer 31.Heat sink 33 have with circuit substrate 32 with the contact site 331 of the rear-face contact of installed surface 321 opposition side and the support 332 that the upper end of contact site 331 bent with right angle to the direction away from circuit substrate 32 and is formed, in cross section L-shaped shape.
Be installed on retainer 31 by screw 34 under the state that heat sink 33 clips circuit substrate 32 between upper retainer 31.Thus, upper retainer 31, circuit substrate 32 and heat sink 33 one-tenth are integrated.
As shown in (B) of Figure 13, on the support 332 of heat sink 33, be provided with the jut 333 given prominence to upward at two places.Jut 333 is such as provided with a pair slit leaving predetermined distance on the width of support 332, by being boosted upward by the length direction central portion of slit, can be set to V shape.In addition, through hole 334 is provided with at the central portion of support 332.
Thus, jut 333 is fitted to be located in the recess (diagram is omitted) on appliance body 20, by the break-through of fixing Screw 35 in the through hole 334 of support 332, be tightened in the screw (diagram is omitted) be located on appliance body 20.Thereby, it is possible to upper retainer 31, circuit substrate 32 and heat sink 33 are installed on appliance body 20.
In addition, in the present embodiment, utilize two portions of cutting of place clipping fixing Screw 35 to be arranged to jut 333, but jut 333 also can be more than one or three.In addition, what the form of jut 333 was also not limited to above-mentioned V-shape cuts portion.
In addition, as long as upper LED illuminating part 30 has upper retainer (retainer) 31 and circuit substrate 32, the presence or absence not restriction of heat sink 33.That is, upper LED illuminating part 30 also can adopt the structure upper retainer (retainer) 31 being directly fixed on appliance body 20 when not having heat sink 33.
As shown in Figures 1 and 3, lower cover 61 is supported by appliance body 20 in the downside of upper cover 51.Lower light guide plate 60 is carry between the lower surface and the upper end 611 of lower cover 61 of upper cover 51.
Lower light guide plate 60 be upper light guide plate 50 overlook similar shape, are diameter dimension this point less of upper light guide plate 50 with the main discrepancy of upper light guide plate 50.That is, lower light guide plate 60 is in the structure same with above-mentioned upper light guide plate 50, so omit detailed description (in the figure 7 with reference to parenthesized label) in the present embodiment.
As shown in (A) of Fig. 3 and Fig. 9, between the pedestal 27 of the roughly hexagon prism shape with the end on the lower surface being arranged on appliance body 20 and lower cover 61, be provided with lower LED illuminating part 40.Lower LED illuminating part 40 has lower retainer 41.
In addition, lower retainer 41 due in the structure same with above-mentioned upper retainer 31, so omit detailed description (in Fig. 10 with reference to parenthesized label) in the present embodiment.
Thus, the LED chip 322 of the inner peripheral surface of the hollow bulb 62 of lower light guide plate 60 and the circuit substrate 32 of incident end face 621 and the lower retainer 41 of formation is arranged opposite.
As shown in Figures 3 and 4, lower cover 61 opaqueness, lower light guide plate 60 is supported in upper end 611.On upper end 611, be provided with elastomeric element 54 equally with upper cover 51.
As shown in Figure 3, above central lens 70, be provided with the ring-type LED illuminating part 72 irradiating light downwards.
As shown in (A) of Fig. 9, ring-type LED illuminating part 72 has the circuit substrate 73 of the partial arc shape on multiple lower surface being arranged on pedestal 27.On the installed surface 731 of the lower surface of circuit substrate 73, arrange LED chip 74 with arc-shaped.
As shown in (B) of Fig. 9, on the lower surface of pedestal 27, in the light-emitting zone as ring-type LED illuminating part 72 with the inner side of circuit substrate 73 of ring-type configuration, be provided with remote control portion 75.The height that remote control portion 75 is configured in the installed surface 731 of the circuit substrate 73 than the luminous starting point as ring-type LED illuminating part 72 more leans on and light emission direction (in (B) of Fig. 9 top) opposition side (in (B) of Fig. 9 below).
That is, under the state be located on ceiling face 11 at LED illumination utensil 10, remote control portion 75 is located at the position of the luminous high starting point than ring-type LED illuminating part 72.
Ring-type LED illuminating part 72 and remote control portion 75 central lens (translucent cover) 70 of ring-type cover.As shown in (A) of Figure 14, to be lateral borders 702 be on the surface 701 of central lens 70 than the inclined plane (mortar face) of medial margin 703 apart from the farther position (i.e. below) of ring-type LED illuminating part 72.
In the present embodiment, the lateral border 702 of central lens 70 is given prominence to downwards than medial margin 703.Therefore, as shown in Figure 3, a part of the light BM1 sent from ring-type LED illuminating part 72 central lens 70 inner surface reflection and towards external reflectance (light BM2).The light BM2 of reflection is irradiated (light BM3) downwards by towards lower cover 61.
In addition, as shown in (B) of Figure 14, central lens 70 also can be the inclined plane (taper seat) that the medial margin 703 on surface 701 is given prominence to downwards than lateral border 702.
In addition, about LED illumination utensil 10, by the breach arranging notch part 55 longer on upper light guide plate 50, the warpage of the entirety of light guide plate 50 can be relaxed when light guide plate 50 expands because of heat.This effect is also same in the notch part of lower light guide plate 60.
In addition, LED illumination utensil 10 is when making light guide plate 50, lower light guide plate 60 of injection-molded article, in the process be shaped, hollow bulb 52,62 overlook hexagonal near form protrudent pin vestige, but, particularly by near edge central authorities of overlooking that these pin vestiges are formed in hollow bulb 52,62 instead of be formed in each bight overlooked, the lightness that can relax each adjacent corner declines.
Namely, about LED illumination utensil 10, originally be that near the adjacent corner overlooked of hollow bulb 52,62 compares the edge central authorities of overlooking, lightness is lower, if but protrudent pin vestige is in the adjacent corner overlooked, then by leaded light to the part of the light of the inside of upper light guide plate 50, lower light guide plate 60 from the protrudent pin vestige bright dipping as matsurface, the lightness in the bight overlooked declines further.
In contrast, by near the edge central authorities of overlooking that protrudent pin vestige are formed in hollow bulb 52,62, the lightness that can relax bight declines.
In addition, about the peripheral end shape of upper light guide plate 50, lower light guide plate 60, by make the peripheral end of upper light guide plate 50 roughly vertical, the peripheral end of lower light guide plate 60 is made the inclined plane declined toward the outer side from inner side, can to avoid while making light travel back across ceiling face or wall top, to produce on ceiling face from the luminescence of lower light guide plate 60 shadow of light guide plate 50.
The action effect of LED illumination utensil 10 is described.
LED illumination utensil 10 have appliance body 20, power supply unit (mounting adapter 22), by from the supply of the power supply of power supply unit (mounting adapter 22) the LED illuminating part of luminescence (LED illuminating part 30) and incident end face 521 opposed relative to the light source of LED illuminating part (going up LED illuminating part 30) and configure and make light from the light guide plate of the planar exit intersected relative to incident end face 521 (light guide plate 50).Light guide plate (upper light guide plate 50) has from the plane of intersecting relative to incident end face 521 (lower surface 501) protuberance 53 outstanding to thickness direction.LED illuminating part (upper LED illuminating part 30) as light source has and is installed with the circuit substrate 32 of multiple LED chip 322 and holding circuit substrate 32 and the retainer (upper retainer 31) be fixed on appliance body 20 with linearity.Retainer (upper retainer 31) comprises at least one pair of projecting strip part 312 opposed with the plane (lower surface 501) of light guide plate (upper light guide plate 50), and a pair projecting strip part 312 is arranged at the position clipping protuberance 53 and separate the distance of regulation on the direction along plane (lower surface 501).
Therefore, LED illumination utensil 10 is clipped by a pair projecting strip part 312, so each protuberance 53 is limited relative to the movement of upper retainer 31 along the direction of the length direction of incident end face 521 respectively due to each protuberance 53 of upper light guide plate 50.Thus, LED illumination utensil 10 can maintain the location of the chronicity of the incident end face 521 of each LED chip 322 and upper light guide plate 50, so can prevent the decline of incident efficiency.
In addition, in LED illumination utensil 10, retainer (upper retainer 31) preferably has the covering part 313 covered towards the side with incident end face 521 opposition side of protuberance 53.
Namely, LED illumination utensil 10 has the covering part 313 covered towards the side with incident end face 521 opposition side of the protuberance 53 of upper light guide plate 50 due to upper retainer 31, the covering part 313 of above retainer 31 limit upper light guide plate 50 and locate to the movement in the direction orthogonal relative to incident end face 521.Thus, LED illumination utensil 10 can prevent LED chip 322 from expanding with the distance of incident end face 521, prevents incident efficiency from declining.
In addition, LED illumination utensil 10 also can possess heat sink 33, and described heat sink 33 has with the contact site 331 of the rear-face contact of circuit substrate 32 and is attached at the support 332 contacted on contact site 331 and with appliance body 20.Further, support 332 has through hole 334 and the jut 333 outstanding to appliance body 20 side.
LED illuminating part 30 is preferably by the fixing Screw 35 screwed togather in break-through to through hole 334 and with appliance body 20 and be fixed on appliance body 20 by being accommodated in recess by jut 333.
Therefore, the circuit substrate 32 being installed with LED chip 322 can be located relative to upper light guide plate 50 by LED illumination utensil 10.
Namely, about LED illumination utensil 10, because contact site 331 contacts on the back side of circuit substrate 32, contact site 331 support 332 be attached on contact site 331 is bearing on appliance body 20, so the heat of circuit substrate 32 transmits to appliance body 20 via contact site 331 and support 332, so radiating efficiency improves.
In addition, about LED illumination utensil 10, the protuberance 53 preferably going up light guide plate 50 has the auxiliary incident end face 531 of the elongated surfaces along incident end face 521.
Protuberance 53 due to upper light guide plate 50 has the auxiliary incident end face 531 of the elongated surfaces along incident end face 521, so it is incident from auxiliary incident end face 531 to incide light in incident end face 521, protuberance 53 internal reflection and by from protuberance 53, upwards light guide plate 50 is guide-lighting.That is, LED illumination utensil 10 is owing to using the light that can not incide incident end face 521 as illumination light, so illumination efficiency improves.
And then about LED illumination utensil 10, preferably, a pair projecting strip part 312 is that projecting height is from the taper increased towards incident end face 521 side compared with the end in distally apart from upper light guide plate 50 respectively.
Namely, about LED illumination utensil 10, due to a pair projecting strip part 312 be respectively projecting height from the taper increased towards incident end face 521 side compared with the end in distally apart from upper light guide plate 50, so in the region covered by upper cover 51 from the light of upper light guide plate 50 outgoing by the conical surface in internal reflection again upwards light guide plate 50 return.
Therefore, the illumination efficiency of the upper light guide plate 50 of LED illumination utensil 10 improves.
LED illumination utensil 10 has appliance body 20, the power supply unit (mounting adapter 22) be housed in appliance body 20, the LED illuminating part of luminescence (upper LED illuminating part 30) and by the light guide plate (upper light guide plate 50) of incident end face 521 towards the luminous axis configuration of LED illuminating part (upper LED illuminating part 30) by the power supply supply from power supply unit (mounting adapter 22).Also have to be supported by appliance body 20 and a pair hold assembly (upper cover 51, horizontal part 25) that light guide plate (upper light guide plate 50) is clamped in a thickness direction and with incident end face 521 and that be located between light guide plate (upper light guide plate 50) and hold assembly (upper cover 51, horizontal part 25) elastomeric element 54 opposed with LED illuminating part (upper LED illuminating part 30) side by side.
Namely, about LED illumination utensil 10, owing to possessing the elastomeric element 54 be located between upper light guide plate 50 and upper cover 51, even if so upper light guide plate 50 is out of shape because of the heat from LED chip 322, follow due to elastomeric element 54 and prevent from occurring gap between upper cover 51, so also can prevent the foreign matter of insect or dust etc. from invading from separation material.In addition, about LED illumination utensil 10, even if the one or both in upper light guide plate 50 and upper cover 51 is aging or because of the temperature of indoor, the change of humidity and be out of shape or can not maintain original shape, uprising the contact pressure of upper cover 51 of bringing because of deadweight because upper light guide plate 50 is aging in time in time, because upper light guide plate 50 and upper cover 51 contact via elastomeric element 54, touch so also can prevent light guide plate 50 and upper cover 51 from mutually wiping and creak sound etc. occurs.
In addition, about LED illumination utensil 10, preferably, the hold assembly (upper cover 51) of the side that the deadweight of in a pair hold assembly (upper cover 51, horizontal part 25), light guide plate (upper light guide plate 50) acts on the face of light guide plate (upper light guide plate 50), groove 513 is set, in groove 513, fill the filling member as elastomeric element 54.
In addition, preferably, on the face of light guide plate (upper light guide plate 50), on complete cycle, groove 513 is formed, the filling member be filled with as elastomeric element 54 throughout this groove 513 complete cycle at hold assembly (upper cover 51).Now, filling member and light guide plate preferably contact the state of setting.When being filled in groove 513, preferably filling member being set to higher than the height at the edge of groove, arranging to make filling member contact with light guide plate.
Namely, about LED illumination utensil 10, due to as in the upper cover 51 of a pair hold assembly and horizontal part 25, as on light guide plate 50 institute's Gravitative Loads side upper cover 51 in, the face opposed with upper light guide plate 50 is provided with groove 513, and the filling member be filled with in groove 513 as elastomeric element 54, so the state that light guide plate 50 contacts with elastomeric element 54 can be maintained for a long time.
Thus, LED illumination utensil 10 intrusion of foreign matter upwards between light guide plate 50 and upper cover 51 that can prevent insect or dust etc. for a long time.
In addition, about LED illumination utensil 10, owing to arranging elastomeric element 54 by filling filling member to groove 513, so enclose and then embed to groove 513 with by advance elastomeric element 54 being made as O shape and be configured to by elastomeric element 54 compared with the operation of assigned position, can elastomeric element 54 be set easily.
In addition, about LED illumination utensil 10, owing to pushing upper light guide plate 50 with elastomeric element 54, so vibrationproof can be obtained, the distortion of the upper light guide plate 50 of turning off the light along with vibration or lighting, the flexible creak sound brought can be prevented.
LED illumination utensil 10 is had appliance body 20, is housed in the power supply unit (mounting adapter 22) in appliance body 20 and is supplied and the ring-type LED illuminating part 72 with the light-emitting zone of ring-type of luminescence by the power supply from power supply unit (mounting adapter 22).Also have in the light-emitting zone being configured in ring-type LED illuminating part 72, be configured in than ring-type LED illuminating part 72 luminous starting point more by with the remote control portion 75 of light emission direction opposition side and the translucent cover (central lens 70) of ring-type that ring-type LED illuminating part 72 is covered.To be in lateral border 702 and medial margin 703 be the surface 701 of translucent cover (central lens 70) than another inclined plane apart from the farther position of LED illuminating part (upper LED illuminating part 30).
That is, in LED illumination utensil 10, the remote control portion 75 be configured in the light-emitting zone of ring-type LED illuminating part 72 is configured in more to be leaned on and light emission direction opposition side than the circuit substrate 73 of the luminous starting point as ring-type LED illuminating part 72.
Therefore, about LED illumination utensil 10, even if be configured in light-emitting zone by remote control portion 75, the misoperation in remote control portion 75 also can be prevented.
In addition, covered by the central lens 70 of ring-type about LED illumination utensil 10, ring-type LED illuminating part 72.The surface 701 of this central lens 70 be in lateral border 702 and medial margin 703 one than another more to relative to ring-type LED illuminating part 72 light-emitting axis line parallel and from ring-type LED illuminating part 72 away from the outstanding inclined plane in direction.
Therefore, about LED illumination utensil 10, the flashlight launched towards remote control portion 75 is easier to be received by remote control portion 75 through the surface 701 of central lens 70.
In addition, in LED illumination utensil 10, preferably, to be lateral border 702 be on the surface 701 of translucent cover (central lens 70) than the inclined plane of medial margin 703 apart from the farther position of ring-type LED illuminating part 72.
That is, about LED illumination utensil 10, to be lateral borders 702 be on the surface 701 of central lens 70 than the inclined plane of medial margin 703 apart from the farther direction of ring-type LED illuminating part 72.
Therefore, about LED illumination utensil 10, be irradiated to the outside of central lens 70, so the range of exposures of the light from ring-type LED illuminating part 72 can be expanded because the light sent from ring-type LED illuminating part 72 is reflected by inclined plane.
And then LED illumination utensil 10 has appliance body 20, be housed in power supply unit (mounting adapter 22) in appliance body 20 and luminous and be configured to overlook multiple LED illuminating parts (upper LED illuminating part 30) of square shape by the power supply supply from power supply unit (mounting adapter 22).Also have by the luminous axis of each LED illuminating part (upper LED illuminating part 30) by arranged opposite for multiple incident end face 521 and form the light guide plate (upper light guide plate 50) of the hollow bulb 52 of square shape.Light guide plate (upper light guide plate 50) to have from each bight of hollow bulb 52 to radiation direction with given size continuous print slit (notch part 55) and the edge part being formed in each slit (notch part 55) and to not outstanding with the surface of appliance body 20 sides the abutted rib 56 of light guide plate (light guide plate 50).In addition, there is the fixing Screw 57 fixed to appliance body 20 by light guide plate (upper light guide plate 50) via slit (notch part 55).Fixing Screw 57 have instrument can engage and the head 571 slit (notch part 55) can not inserted, be located at head 571 seat surface on soft packing ring 574, with head 571 continuously and the axle portion 572 that slit (notch part 55) can be inserted and with axle portion 572 continuously and the threaded portion 573 be screwed on appliance body 20.As shown in (B) of Fig. 8, the axial length L1 in axle portion 572 is more than aggregate value L2 of the gauge of light guide plate (upper light guide plate 50) and the outstanding size of rib 56.
Namely, about LED illumination utensil 10, axial length L1 due to the axle portion 572 of fixing Screw 57 is defined as more than the aggregate value L2 of the gauge of upper light guide plate 50 and the outstanding size of rib 56, so when being fixed to appliance body 20 by upper light guide plate 50, fixing Screw 57 can not exceedingly suppress upper light guide plate 50 along thickness direction.About LED illumination utensil 10, installed because upper light guide plate 50 carries out so-called suspension relative to appliance body 20, thus not easily strain on upper light guide plate 50, flexure etc.
In addition, about LED illumination utensil 10, upper light guide plate 50 due to the flat shape of hollow bulb 52 are hexagons, profile is circular, so shorter than other parts from the radiation direction length in bight, flexural strength (hang down tolerance) is slightly weak, but by erectting rib 56 along notch part 55, the gauge of upper light guide plate 50 can be strengthened locally, suppress to be out of shape to be starting point hang down at the position corresponding with notch part 55.
LED illumination utensil is not limited to above-mentioned embodiment, can carry out suitable distortion, improvement etc.
Such as, in the above-described embodiment, about LED illumination utensil 10, be the structure of circular plate shape as upper light guide plate 50 and lower light guide plate 60 exemplified with having the global shape overlooking hexagonal opening in central authorities, but the shape of overlooking of opening also can be other shapes of triangle, quadrangle or pentagon etc.In addition, about LED illumination utensil 10, except as upper light guide plate 50 and lower light guide plate 60 global shape for overlook discoideus except, global shape also can be adopted to be overlook polygon-shaped structure.
And then LED illumination utensil 10 can also adopt light guide plate 50 and lower light guide plate 60 not to be have the circular of opening in central authorities but stretch out to the left and right from appliance body rectangular-shaped and using the structure of an end face as the shape of incident end face.
In addition, in the above-described embodiment, as LED illumination utensil 10 protuberance 53 exemplified with global shape be trapezoidal shape, an end face is the form with the auxiliary incident end face 531 of incident end face 521 coplanar, but the global shape of protuberance does not limit.That is, as the protuberance 53 of LED illumination utensil 10, also can be singly pin shape.Even if LED illumination utensil 10 adopts the protuberance of pin shape, a pair parts of the position that also can be clipped by the direction, face be located at along upper light guide plate 50 avoid upper light guide plate 50 to move up in face side.
In addition, in the above-described embodiment, exemplified with the situation being provided with the covering part 313 inclined plane 532 of protuberance 53 covered on upper retainer 31, but the situation that covering part 313 is not set can be also applied to.
Claims (6)
1. a LED illumination utensil, possesses:
Appliance body;
Power supply unit;
LED illuminating part, luminous by the power supply supply from above-mentioned power supply unit; And
Light guide plate, configures in the mode that incident end face is opposed relative to the light source of above-mentioned LED illuminating part, and makes light from the planar exit intersected relative to above-mentioned incident end face;
Above-mentioned light guide plate has protuberance outstanding from above-mentioned plane in a thickness direction;
Above-mentioned LED illuminating part has:
Circuit substrate, is installed with multiple LED chip as above-mentioned light source along rectilinear direction; And
Retainer, keeps foregoing circuit substrate and is fixed on above-mentioned appliance body;
Above-mentioned retainer comprises at least one pair of projecting strip part opposed with the above-mentioned plane of above-mentioned light guide plate;
At least one pair of projecting strip part above-mentioned is arranged on the position of the distance separating regulation on the direction along above-mentioned plane, so as between clip the above-mentioned protuberance of above-mentioned light guide plate.
2. LED illumination utensil as claimed in claim 1, is characterized in that,
Above-mentioned retainer also has the covering part covered towards the side with above-mentioned incident end face opposition side of above-mentioned protuberance.
3. LED illumination utensil as claimed in claim 1, is characterized in that,
Above-mentioned LED illuminating part also possesses heat sink, described heat sink have with the contact site of the contrary face in the face being installed with above-mentioned LED chip and the rear-face contact of foregoing circuit substrate be attached at the support contacted on above-mentioned contact site and with above-mentioned appliance body;
Above-mentioned support has through hole and the jut outstanding to above-mentioned appliance body side;
Above-mentioned LED illuminating part is by the fixing Screw that screws togather in break-through to above-mentioned through hole and with above-mentioned appliance body and by accommodate above-mentioned jut in the recess that is located on above-mentioned appliance body and to be fixed on above-mentioned appliance body.
4. LED illumination utensil as claimed in claim 2, is characterized in that,
Above-mentioned LED illuminating part also possesses heat sink, described heat sink have with the contact site of the contrary face in the face being installed with above-mentioned LED chip and the rear-face contact of foregoing circuit substrate be attached at the support contacted on above-mentioned contact site and with above-mentioned appliance body;
Above-mentioned support has through hole and the jut outstanding to above-mentioned appliance body side;
Above-mentioned LED illuminating part is by the fixing Screw that screws togather in break-through to above-mentioned through hole and with above-mentioned appliance body and by accommodate above-mentioned jut in the recess that is located on above-mentioned appliance body and to be fixed on above-mentioned appliance body.
5. the LED illumination utensil according to any one of Claims 1 to 4, is characterized in that,
Above-mentioned protuberance has the auxiliary incident end face of the elongated surfaces along above-mentioned incident end face.
6. the LED illumination utensil according to any one of Claims 1 to 4, is characterized in that,
Above-mentioned a pair projecting strip part is projecting height along with from the taper increased towards above-mentioned incident end face side compared with the end in distally apart from above-mentioned light guide plate respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014082074A JP6238173B2 (en) | 2014-04-11 | 2014-04-11 | LED lighting fixtures |
| JP2014-082074 | 2014-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204534353U true CN204534353U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520218115.8U Expired - Fee Related CN204534353U (en) | 2014-04-11 | 2015-04-10 | LED illumination utensil |
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| Country | Link |
|---|---|
| JP (1) | JP6238173B2 (en) |
| CN (1) | CN204534353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873306A (en) * | 2018-08-31 | 2020-03-10 | Rab照明设备公司 | Apparatus and method for efficiently directing light toward and away from a mounting surface |
| US10801679B2 (en) | 2018-10-08 | 2020-10-13 | RAB Lighting Inc. | Apparatuses and methods for assembling luminaires |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202016103838U1 (en) * | 2016-07-15 | 2017-10-18 | Zumtobel Lighting Gmbh | lamp |
| CN113587007B (en) * | 2021-08-02 | 2023-06-02 | 深圳市裕富照明有限公司 | Lighting equipment capable of lighting upwards |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2376287A (en) * | 2001-05-18 | 2002-12-11 | Michael Gulvin Russell | Luminous tile |
| JP2005243533A (en) * | 2004-02-27 | 2005-09-08 | Minebea Co Ltd | Planar lighting system |
| US7894012B2 (en) * | 2005-11-28 | 2011-02-22 | Sharp Kabushiki Kaisha | Backlight device and liquid crystal display device using the same |
| JP5374267B2 (en) * | 2009-07-24 | 2013-12-25 | 三協立山株式会社 | LED light source unit, planar illumination device, and signboard |
| JP4975136B2 (en) * | 2010-04-13 | 2012-07-11 | シャープ株式会社 | Lighting device |
| JP5565583B2 (en) * | 2010-09-27 | 2014-08-06 | 東芝ライテック株式会社 | Light bulb shaped lamp and lighting equipment |
| JP2012084316A (en) * | 2010-10-08 | 2012-04-26 | Toshiba Lighting & Technology Corp | Lighting fixture |
| JP2013037915A (en) * | 2011-08-08 | 2013-02-21 | Sharp Corp | Lighting device |
| JP5584723B2 (en) * | 2012-03-28 | 2014-09-03 | 三菱電機株式会社 | Surface light source device and display device using surface light source device |
-
2014
- 2014-04-11 JP JP2014082074A patent/JP6238173B2/en active Active
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2015
- 2015-04-10 CN CN201520218115.8U patent/CN204534353U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873306A (en) * | 2018-08-31 | 2020-03-10 | Rab照明设备公司 | Apparatus and method for efficiently directing light toward and away from a mounting surface |
| US10739513B2 (en) | 2018-08-31 | 2020-08-11 | RAB Lighting Inc. | Apparatuses and methods for efficiently directing light toward and away from a mounting surface |
| CN110873306B (en) * | 2018-08-31 | 2022-08-19 | Rab照明设备公司 | Apparatus and method for efficiently directing light toward and away from a mounting surface |
| US10801679B2 (en) | 2018-10-08 | 2020-10-13 | RAB Lighting Inc. | Apparatuses and methods for assembling luminaires |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6238173B2 (en) | 2017-11-29 |
| JP2015204160A (en) | 2015-11-16 |
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