CN104154497B - Illuminator - Google Patents

Abstract

The present invention provides a kind of illuminator, including lamp casing, the main reflector and light source that are arranged in lamp casing, and subreflector, the subreflector is connected with the lamp casing, and it is arranged at the light source rear, the main reflector opens up the first louvre, and the subreflector opens up the second louvre.Above-mentioned illuminator, by opening up the first louvre on main reflector, the second louvre is opened up on subreflector, the cold air entered by the first louvre on main reflector, discharged by the second louvre on subreflector, circulation is formed, accelerates hot-air discharge in light fixture, effectively reduce lamp temperatures；So as under the restriction of light fixture contour structures size, solve the problems, such as that lamp light source utilization rate is low and lamp temperatures are unable to reach standard requirement.

Description

Illuminator

Technical field

The present invention relates to lighting field, more particularly to a kind of illuminator.

Background technology

Traditional illuminator, does luminous intensity distribution design to light source using reflector mostly, is equipped with by light source size correspondingly sized Reflector.Typically be not in the bad problem for shedding of heat of light source, but be sometimes for the large-scale light source of Metal halogen lamp Reduces cost, in the shell of existing Metal halogen lamp, reconfigures other kinds of light source and reflector, that is to say, that in lamp In the case that tool outer shape is fixed, the luminous intensity distribution for making light fixture is improved.So it is possible to use relative low price, but it is individual complete Different light source replaces the gold-halogen lamp light source of high price, so, due to the restriction of light fixture profile size, causes light source Light can not be utilized effectively, and the problem that heat cannot shed occurs.

The content of the invention

Regarding to the issue above, lamp is solved under the restriction of light fixture contour structures size it is an object of the invention to provide one kind Tool light source utilization rate is low and lamp temperatures are unable to reach the illuminator that standard is required.

In order to solve the above-mentioned technical problem, the invention provides a kind of illuminator, including lamp casing, it is arranged at light fixture Main reflector and light source in housing, and subreflector, the subreflector are connected with the lamp casing, and are arranged at institute Light source rear is stated, the main reflector opens up the first louvre, and the subreflector opens up the second louvre.

Wherein, the main reflector includes that, in the primary reflection surface of paraboloidal, first louvre is opened in the master Reflecting surface.

Wherein, the subreflector is made of fine aluminium.

Wherein, the subreflector includes bottom wall and the connecting portion positioned at the bottom wall opposite sides, in the bottom wall Spill is fixedly connected into a concave surface, the connecting portion with the lamp casing, and second louvre is opened in the bottom wall.

Wherein, the reflecting surface of the concave surface Formation cross-section undulate.

Wherein, the bottom wall is forming radiating ribs on the surface of light source.

Wherein, the light source is integrally in the form of a column rotary body, and horizontally set.

Wherein, the lamp casing has light-emitting window and the afterbody connector relative with the light-emitting window, described secondary anti- Emitter is arranged at the afterbody connector.

Wherein, the main reflector is formed by aluminium sheet bending.

Wherein, the main reflector also includes being arranged at the middle baffle plate inside main reflector, and the middle baffle plate is located at The side of the opening of light source is installed, for the shooting angle of light regulating, first louvre is distributed in the middle baffle plate Both sides.

The illuminator that the present invention is provided, by opening up the first louvre on main reflector, opens up on subreflector Second louvre, the cold air entered by the first louvre on main reflector is arranged by the second louvre on subreflector Go out, form circulation, accelerate hot-air discharge in light fixture, effectively reduce lamp temperatures；So as to be limited in light fixture contour structures size Under, solve the problems, such as that lamp light source utilization rate is low and lamp temperatures are unable to reach standard requirement.

Brief description of the drawings

In order to illustrate more clearly of technical scheme, the accompanying drawing to be used needed for implementation method will be made below Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the front view of the illuminator that embodiment of the present invention is provided.

Fig. 2 is the side view of illuminator shown in Fig. 1.

Fig. 3 is the top view of illuminator shown in Fig. 1.

Fig. 4 is the stereogram of illuminator shown in Fig. 1.

Fig. 5 is the three-dimensional exploded view of illuminator shown in Fig. 1.

Fig. 6 is the front view of subreflector.

Fig. 7 is the top view of subreflector.

Fig. 8 is the top view of subreflector.

Fig. 9 is the stereogram of subreflector.

Figure 10 is stereogram of the subreflector at another visual angle.

Figure 11 is luminous intensity distribution schematic diagram of the subreflector in illuminator.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Refer to Fig. 1 to Fig. 4, the illuminator 100 that embodiment of the present invention is provided, it includes：Lamp casing 20, setting In main reflector 30 and light source 40 in lamp casing 20, and subreflector 50.The main reflector 30 opens up the first radiating Hole 309, the subreflector 50 opens up the second louvre 509.

In the present embodiment, the lamp casing 20 can be multiplexing part, i.e. the initial designs of lamp casing 20 are suitable With with the different types of light source of light source 40, such as initial adaptation is Metal halogen lamp, and light source 40 for cheap LED light source or its His types of light sources etc..In the case where the shape of lamp casing 20 determines, the size design of corresponding main reflector 30 is restricted, Need to be adapted with lamp casing 20, it is impossible to which that does is too big.In other words, i.e., the lamp casing that shape, size need to be utilized to determine substantially 20 and main reflector 30, it is that it reconfigures other kinds of light source, i.e. light source 40 to realize the repetition profit of lamp casing 20 With.

The present invention carries out luminous intensity distribution design by configuring subreflector 50 together with main reflector 30, can improve light source 40 The efficiency of light energy utilization；Meanwhile, by opening up the first louvre 309 on main reflector 30, second is opened up on subreflector 50 and is dissipated Hot hole, the cold air entered by the first louvre 309 on main reflector 30, by the second louvre on subreflector 50 509 discharges, form circulation, accelerate hot-air discharge in light fixture, and cold air enters, and forms circulation, effectively reduces lamp temperatures；From And, under the restriction of light fixture contour structures size, solution lamp light source utilization rate is low and lamp temperatures are unable to reach standard requirement Problem.

Please referring also to Fig. 5, in embodiment of the present invention, lamp casing 20 is surrounded by 4 side plates 201 being sequentially connected, 4 side plates 201 are collectively forming a receiving space, and main reflector 30 and light source 40 are contained in the receiving space.

Lamp casing 20 has a light-emitting window 202 and the afterbody connector 203 relative with the light-emitting window 202.This In implementation method, light-emitting window 202 and afterbody connector 203 are rectangle.Subreflector 50 is arranged at the afterbody connector 203 Place.From light-emitting window 202 and afterbody connector 203, the lamp casing 20 is in the taper type for gradually inside contracting.

Certainly, in other embodiments, light-emitting window 202 can also be circle, ellipse etc., depending on the monnolithic case of light fixture Depending on.Afterbody connector 203 can also be other shapes, and the global shape with subreflector 50 is adapted.

Wiring port 205 is additionally provided with lamp casing 20, external power source is connected by Wiring port 205 or circuit is controlled Cable, for example, being connected as the cable of the power supply of light source 40, or is the cable etc. of the power supply of scavenger fan 60.In present embodiment, connect Line end mouthful 205 is arranged at one of side plate 201 of lamp casing 20.

Main reflector 30 include in paraboloidal primary reflection surface 31 and be connected to the connecting plate at the two ends of primary reflection surface 31 32, and opening is formed at two ends, wherein one is open for light extraction, another opening is used to install light source 40.Main reflector 30 is overall Formed by aluminium sheet bending.

The first louvre 309 is opened up on primary reflection surface 31, first louvre 309 can be rectangle, circle, ellipse Shape, or other shapes through hole, the mode of its arrangement can be with rectangular array, circular array, or other irregular arrangements, The size of every 1 first louvre 309 can be with identical, it is also possible to different.

The outer surface of main reflector 30 is adapted with the medial surface of the lamp casing 20.The primary reflection surface 31 is used for anti- Penetrating light carries out luminous intensity distribution.

In the present embodiment, main reflector 30 also includes a middle baffle plate 302 for being arranged inside.The middle baffle plate 302 sides for being located at the opening for installing light source 40, for the shooting angle of light regulating, concentrate light and launch from side.This Kind structure can be applied in the light fixture of oblique concentration light extraction.First louvre 309 is distributed in 302 liang of the middle baffle plate Side.

In present embodiment, light source 40 is overall to be in the form of a column rotary body, and is horizontally set at the afterbody connection of lamp casing 20 At mouth 203.

Fig. 1-Figure 10 is referred to, the subreflector 50 is connected with the lamp casing 20, and is arranged at the light source 40 Rear.In the present embodiment, the subreflector 50 is made of fine aluminium, certainly, its can also using other thermal conductivity compared with Good material is made.

Subreflector 50 includes bottom wall 51 and the connecting portion 53 positioned at the opposite sides of the bottom wall 51.In the bottom wall Spill is into a concave surface 55.The connecting portion 53 is fixedly connected with the lamp casing 20, and it can be screw thread that it is fixedly connected mode Connection, or be attached by interface arrangment.

The second louvre 509 is opened up on the bottom wall 51 of subreflector 50, second louvre 509 can be rectangle, circle Shape, ellipse, or other shapes through hole, mode of its arrangement can be with rectangular array, circular array, or other are irregular Arrangement, the size of every 1 second louvre 509 can be with identical, it is also possible to different.The position of the second louvre 509 dissipates with first The position of hot hole 309 is relative, is easy to the cold air entered through the first louvre 309, can be smoothly through on subreflector 50 Second louvre 509 is discharged, and forms circulation.

Please referring also to Figure 11, show luminous intensity distribution schematic diagram of the subreflector 50 in light fixture.It is right that the concave surface 55 is used for The light of light source 40 is reflected, i.e., subreflector 50 carries out luminous intensity distribution together with main reflector 30.

The reflecting surface of the Formation cross-section undulate of the concave surface 55, so as to help to dissipate light.

The bottom wall 51 of subreflector 50 is also forming radiating ribs 502 on the surface of light source 40, for distributing illuminating lamp The heat that tool 100 is produced when working.The radiating ribs 502 can be a plurality of and arranged in parallel.

The illuminator 100 of embodiment of the present invention operationally, is arranged at the subreflector 50 at the rear of light source 40, can be with Light is dissipated, effectively using the luminous energy of light source 40.When the luminous component of light source 40 is column-shape rotator, and by lamp casing 20 and the requirement limitation of service condition, the traverse of light source 40, then the half of light source 40 is towards needing illumination region, and second half is then towards secondary anti- The direction of emitter 50（Need illumination region rightabout）Diverging, subreflector 50 is placed in the rear of light source 40, its luminous energy that will be lost Reflexing to needs on illumination region or main reflector 30, then is re-reflected into needing illumination region by main reflector 30.

The illuminator 100 of embodiment of the present invention, by opening up the first louvre 309 on main reflector 30, in pair The second louvre is opened up on reflector 50, the cold air entered by the first louvre 309 on main reflector 30 is reflected by pair The second louvre 509 on device 50 is discharged, and forms circulation, accelerates hot-air discharge in light fixture, and cold air enters, and forms circulation, Effectively reduce lamp temperatures；So as under the restriction of light fixture contour structures size, solve that lamp light source utilization rate is low and light fixture temperature Degree is unable to reach the problem of standard requirement, so as to effectively reduce temperature in lamp box, light source environment temperature is not exceeded, extends it and uses Life-span.

The present invention can make full use of the light that light source is sent to be gone to the region that need to be illuminated, and can effectively reduce light source temperature Degree, extends light source life.

The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (9)

1. a kind of illuminator, including lamp casing, the main reflector and light source being arranged in lamp casing, it is characterised in that： The illuminator also includes subreflector, and the subreflector is connected with the lamp casing, and after being arranged at the light source Side, the main reflector opens up the first louvre, and the main reflector includes being arranged at the middle apron inside the main reflector Plate, the middle baffle plate is located at the side of the opening for installing the light source, and first louvre is distributed in the middle baffle plate Both sides, the subreflector opens up the second louvre, the position phase of the position of second louvre and first louvre Correspondence, the cold air into first louvre is discharged by second louvre, wherein, the lamp casing is multiplexing Part, to be adapted to and the different types of light source of the light source.

2. illuminator according to claim 1, it is characterised in that the main reflector includes anti-in the master of paraboloidal Face is penetrated, first louvre is opened in the primary reflection surface.

3. illuminator according to claim 1, it is characterised in that the subreflector is made of fine aluminium.

4. illuminator according to claim 1, it is characterised in that the subreflector includes bottom wall and positioned at institute The connecting portion of bottom wall opposite sides is stated, the bottom wall is recessed a concave surface, and the connecting portion is fixed with the lamp casing and connected Connect, second louvre is opened in the bottom wall.

5. illuminator according to claim 4, it is characterised in that the reflection of the concave surface Formation cross-section undulate Face.

6. illuminator according to claim 4, it is characterised in that the bottom wall is dissipated being formed on the surface of light source Hot muscle.

7. illuminator according to claim 1, it is characterised in that the light source is integrally in the form of a column rotary body, and laterally Set.

8. illuminator according to claim 1, it is characterised in that the lamp casing have light-emitting window and with it is described The relative afterbody connector of light-emitting window, the subreflector is arranged at the afterbody connector.

9. illuminator according to claim 1, it is characterised in that the main reflector is formed by aluminium sheet bending.