CN203571460U

CN203571460U - Semiconductor illuminating lamp and lamp wick

Info

Publication number: CN203571460U
Application number: CN201320355837.9U
Authority: CN
Inventors: 秦彪
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2014-04-30
Anticipated expiration: 2023-06-14

Abstract

For solving the problem of glare, the utility model provides a semiconductor illuminating lamp and a lamp wick which are simple in structure, low in manufacture cost, and substantial in effect. A light source distribution lens (4) or a lamp wick reflector (7) is arranged in front of an LED light source (2) to enable most (more than 70%) of light emitted by the LED light source (2) to be irradiated onto a lamp reflector (3) and then reflected outwards. Thus, the optical flux which generates glare and is extremely high in certain parts is uniformly distributed onto the large-area lamp reflector (3) so that the local optical flux density is effectively reduced and the problem of glare is effectively solved. With the employment of the technical scheme of the utility model, the standard general lamp wick (comprising the LED light source (2), a heat conduction plate (1) or heat conduction core (10), the light source distribution lens (4) or lamp wick reflector (7), and a lamp wick housing (11)) can be realized easily.

Description

A kind of semi-conductor lighting lamp and wick

Technical field

The utility model belongs to LED lighting technical field, specially refers to the technology of the dazzle that reduces the generation of LED lighting.

Technical background

LED light source, due to the advantage of energy-conserving and environment-protective, is considered to mankind a new generation illumination light source.The light that LED sends, luminous flux density is very high, and the LED wafer of 11 * 1mm just can send the light of 100lm, and people's eyes are directly being seen such light source, and due to luminous flux, local density is too high, can produce strong glare phenomenon.Existing LED illuminating lamp solves the scheme of dazzle: adopt, at the light-emitting window place of lighting, the diffuser made from diffusion material is set; Adopt the LED light source substrate of large area size, distance between LED wafer can be strengthened and scatter, then mix the diffuser that has adopted diffusing structure (utilizing refraction, total reflection principle); Adopt mixed light chamber, multiple reflection in the mixed light chamber of light in light fixture.The cost that reduces LED illumination is also very important.

Above-described technical scheme problem has: the efficiency of light extraction efficiency and light fixture is low, and such as the light transmittance of diffusion material is not high, general 80%, the price of diffusion material is not low, and the diffuser that adopts diffusion material not only luminous efficiency reduces, and cost also increases; Light multiple reflections, light extraction efficiency also just declines; Large-sized light source substrate, is not easy to realize standardized light source module (the utility model is called wick), and module standardization is the necessary of LED illuminating product development; The astigmatic efficiency of diffusing structure is also limited; Adopt diffusion material or diffusing structure, the illumination angle of light fixture (range of exposures) is restricted, such as being not useable for spotlight.

Summary of the invention

The purpose of this utility model is to propose technical scheme for LED illuminating lamp glare problem, not only can effectively reduce LED illuminating lamp glare problem, guarantee high light extraction efficiency and Luminaire efficiency, easily realize various lamp distribution (ranges of exposures, and intensity), also easily realize LED wick (optical mode group) standardization, the cost of whole lamp also can effectively reduce.

The scheme the utility model proposes: critical piece includes: LED light source and light fixture reflector, LED light source is furnished with heat-conducting plate or heat conduction core, the heat that LED light source produces spreads out of by heat-conducting plate or heat conduction core, the light sending from LED light source has the reflective surface that more than 70% is irradiated to light fixture reflector, to light fixture external reflectance, the area of the reflective surface of light fixture reflector should be the more than five times of LED light source place substrate area again.Concrete architectural feature is: before LED light source, be provided with light source light distribution lens, from the light of LED light source after light source light distribution lens, have on the reflective surface that more than 70% is irradiated to light fixture reflector or in LED light source the place ahead and be provided with wick reflector, this wick reflector reflexes to the light of more than 70% sending out from LED light source on the reflective surface of light fixture reflector or before LED light source, is provided with wick cover, wick cover is provided with towards the sidewall of the reflective surface of light fixture reflector, and this sidewall has adopted diffusing structure or diffusion material.

It is that reflective surface from light fixture reflector reflects that the light irradiating from light fixture has more than 70%, the reflective area of light fixture reflector is large (the utility model proposes five times of above light source substrate areas) enough, the pharosage of the light penetrating from light fixture effectively reduces, thereby the factor of generation dazzle has been eliminated.More than 70% light that the utility model proposes ejaculation light fixture reflects from light fixture reflector, and the light overwhelming majority of sending from LED light source showing is exactly assigned to light fixture reflector and reflects.In order more effectively to reduce dazzle degree, the reflective area of light fixture reflector should be larger, preferably gets ten times of above light source substrate areas, and the ratio of the light reflecting from light fixture reflector should be more, preferably more than 85% only reflecting from light fixture reflector.The reflectivity of reflective mirror is very high, and the reflection efficiency that vacuum is covered aluminium film mirror can reach 98%.By adopting the reflective surface of different angles of reflection and curved surface, different reflecting surface structures, can realize various lamp distribution.

Realize the concrete technical scheme (being technical characterictic of the present utility model) of above scheme: (1) is provided with light source light distribution lens before LED light source, utilize refraction and total reflection principle, the light that LED light source concentrated forward (direction of illumination of the utility model definition LED light source is the place ahead) irradiates is changed to concentrate to side and irradiates, the light that makes to send from LED light source has more than 70% and is irradiated to light fixture reflector, then to light fixture external reflectance.(2) in LED light source the place ahead, wick reflector is set, the light sending from LED light source has more than 70% and is reflexed to light fixture reflector by wick reflector, then towards light fixture external reflectance.(3) before LED light source, be provided with wick cover, this wick cover is provided with towards the sidewall of light fixture reflector, this sidewall diffusing structure or diffusion material.

The light that LED light source irradiates, luminous flux is concentrated forward, and illumination angle (range of exposures) is not high, is generally 60 ° (illumination angle in the utility model is defined as the angle of light and LED light source axis forward).Three kinds of concrete technology that the utility model proposes, simple in structure, very easy change changes the illumination angle of (increase) LED light source, can reduce significantly the luminous flux in LED light source dead ahead, and the illumination that the realization overwhelming majority (more than 70%) LED light sources send is mapped on light fixture reflector.The technical scheme that employing the utility model proposes, the LED wafer in LED light source can be concentrated, and reduces LED light source substrate size, is conducive to like this LED wick (comprising LED light source, heat-conducting plate or heat conduction core etc.) and realizes standard universal.

The utility model, according to above-described technical solutions of the utility model, has also proposed three kinds of semiconductor lighting wicks, is below the technology contents introduction of wick for these three kinds of semiconductor lightings.

1, a kind of semiconductor lighting wick, include LED light source and heat-conducting plate or heat conduction core, it is characterized in that: LED light source dead ahead is provided with light source light distribution lens, the light being sent by LED light source penetrates after light source light distribution lens, has the illumination angle of more than 2/3rds light to be greater than 60 °.

2, a kind of semiconductor lighting wick, include LED light source and heat-conducting plate or heat conduction core, it is characterized in that: before LED light source, be provided with wick cover, in LED light source the place ahead, in wick cover, be provided with wick reflector, from LED light source, send, be irradiated to the light on the reflective surface of wick reflector, be reflected on the sidewall of wick cover, the sidewall of wick cover has adopted diffusing structure or diffusion material.

3, a kind of semiconductor lighting wick, include LED light source and heat-conducting plate or heat conduction core, it is characterized in that: before LED light source, be provided with wick cover, the sidewall of wick cover has adopted transparent material, in LED light source the place ahead, in wick cover, be provided with wick reflector, the illumination of sending out from LED light source is mapped to wick reflector, is partly or entirely reflected, from wick cover sidewall, penetrate, the light penetrating from wick has three minutes more than two illumination angles to be greater than 60 °.

Accompanying drawing explanation

Below in conjunction with accompanying drawing and specific embodiments, do a nearly step explanation.

Fig. 1 is a kind of illuminating lamp of the present utility model, adopts light source light distribution lens to change the illumination angle of the light sending from LED light source, and in figure, h represents the height of light fixture reflector, and a represents from the illumination angle of the light of light source light distribution lens ejaculation.

Fig. 2 is a kind of illuminating lamp of the present utility model, adopts wick reflector to change the illumination angle of the light sending from LED light source.

Fig. 3 is a kind of illuminating lamp of the present utility model, a kind of wide-angle illumination zone design.

Fig. 4 is a kind of illuminating lamp of the present utility model, is furnished with wick reflector angle of reflection tunable arrangement.

Fig. 5 is a kind of illuminating lamp of the present utility model, has adopted wick (optical mode group) structure.

Fig. 6 is a kind of illuminating lamp of the present utility model, has adopted the wick cover of diffusing structure or diffusion material.

Fig. 7 is a kind of wick of the present utility model, adopts light source light distribution lens.

Fig. 8 is a kind of wick of the present utility model, adopts wick reflector, and is furnished with lamp pearl prefocus cup.

Fig. 9 is a kind of illuminating lamp of the present utility model, is furnished with wick reflector light angle of reflection tunable arrangement.

1, heat-conducting plate, 2, LED light source, 3, light fixture reflector, 4, light source light distribution lens, 5, dotted line (expression light), 6, fin, 7, wick reflector, 8, thimble, 9, light fixture diffuser, 10, heat conduction core, 11, wick cover, 12, connector head, 13, lamp pearl prefocus cup.

Specific embodiments

The utility model illuminating lamp shown in Fig. 1, light fixture reflector 3 is a kind of similar loudspeaker (typhon mouth) shape structures, and inner side is reflective surface, and LED light source 2 is arranged on the middle part of light fixture reflector 3.Light fixture reflector adopts metallic plate (preferably selecting aluminium sheet) to make, and is used as the fin of LED light source 2, and heat-conducting plate 1 is attached on light fixture reflector 3, between contact area be exactly transmission of heat by contact face.The heat that LED light source 2 produces is transmitted to through heat-conducting plate 1 the light fixture reflector 3 that metallic plate makes and sheds.In figure, LED light source 2 is the light source of a kind of single LED lamp pearl, LED light source 2 dead aheads are provided with light source light distribution lens 4, light source light distribution lens 4 utilize refraction and total reflection principle, LED light source 2 is concentrated to the light of front irradiation and changed over to side, make irradiation that the overwhelming majority (more than 70%) sends from LED light source 2 at light fixture reflector 3 medial surfaces (reflective surface), reflect again light fixture, as shown in dotted line in figure 5, thereby directly see that the luminous intensity (pharosage) of LED light source 2 parts has reduced.The illumination angle α of the light irradiating from light source light distribution lens 4 is large as far as possible, can reduce like this height dimension h (the namely size of illuminating lamp) of light fixture reflector, thereby the utility model proposes the light sending from LED light source 2, after light source light distribution lens 4, there is the illumination angle of more than 2/3rds light to be greater than 60 °.In the utility model, the illumination angle of light is defined as the angle of the axis (forward) of light (containing direction of illumination) and LED light source, as shown in angle α in figure.

The utility model illuminating lamp shown in Fig. 2, be provided with fin 6, the heat that LED light source 2 produces passes to fin 6 by heat-conducting plate 1 and sheds, LED light source 2 dead aheads are provided with wick reflector 7, the light sending from LED light source 2 is mapped to wick reflector, be reflected on light fixture reflector 3, then be reflected light fixture, as shown in dotted line in figure 5.Wick reflector can adopt transparent material to make, its reflective surface adopts the reflective coating with light transmission, the wide part (more than 70%) of sending from LED light source 2 is reflexed to light fixture reflector 3 by wick reflector 7, also have the light that part is sent from LED light source 2 to see through equably 7 ejaculations of wick reflector, object is that the light in order to make to penetrate from light fixture is more even.Can also adopt and on wick reflector 7, evenly open several many osculums, the light that part is sent from LED light source 2 can penetrate through wick photophore 7.

The utility model illuminating lamp shown in Fig. 3, it is a kind of lamp of large illuminating angle, light fixture reflector 3 is also similar tubaeform, but reflective surface is in outside, LED light source 2 dead aheads are provided with wick reflector 7, the illumination angle α of the light reflecting through wick reflector 7 is large (comparing the α in Fig. 1,2) more, just can be irradiated on lamp luminescence device 3, and the illumination angle of the light being reflected by light fixture reflector 3 is also just larger.Light fixture reflector 3 in Fig. 3 is also used as fin.

The utility model illuminating lamp shown in Fig. 4, adopt heat conduction core 10, the heat that LED light source 2 produces is conducted by heat conduction core 10, in heat conduction core 10, cover has fin 6, the middle part of light fixture reflector 3 (small end face place) is provided with flange, and is enclosed within heat conduction core 10, and between flange and heat conduction core 10, contact-making surface is just transmission of heat by contact face, light fixture reflector 3 adopts sheet metal to make, and is used as the part fin of LED light source 2.The reflector of light fixture shown in Fig. 4 light-emitting window (the namely light-emitting window of light fixture) is provided with light fixture diffuser 9; this light fixture diffuser 9 plays protection internal part (such as LED light source, reflective surface etc.); for the light that further makes light fixture penetrate is softer, light fixture diffuser 9 can adopt diffusing structure.Diffusing structure is generally the structure of surface irregularity, and that the reflective surface of light fixture reflector 3 also can adopt is rough, produce the structure of diffuse effect, and the light that light fixture is penetrated is softer.

By adjusting, change wick reflector light-emitting area angle is set, the curve form of reflective surface (crooked radian), regulate the light angle of reflection that changes wick reflector, regulate the illumination angle that changes the light of launching from wick photophore, and then with regard to the illumination angle (range of exposures, light intensity distributions) of adjustable change lighting, realize the range of exposures of the lamp that regulates at any time illumination etc., optically focused during such as distance light, astigmatism during dipped beam.In Fig. 4, just show a kind of wick reflector light angle of reflection adjustable apparatus, wick reflector 7 adopts the anfractuose reflecting piece of number to form, by adjusting, change the degree of depth that thimble 8 inserts wick reflector 7, the light inverse surface of wick reflector 7 will change, and light angle of reflection is adjustable.

In the utility model illuminating lamp shown in Fig. 5, heat conduction core 10 is shown and adopts taper (preferably conical) structure,

Be conducive to solve the transmission of heat by contact thermal resistance between heat conduction core 10 and fin 6, heat conduction core 10 centers are hollowed out, and can reduce material.The connector head 12 of LED light source 2 is through heat conduction core 10.At LED light source 2 front ends, be provided with wick cover 11; wick cover 11 adopts light transmissive material; the sidewall of wick cover 11 can be designed to round border, LED light source the place ahead; wick reflector 7 is arranged in wick cover 11; the effect of wick cover 11 has: the reflective surface of protection LED light source 2 and wick reflector 7, is not subject to the pollution of dust and steam etc.Standarized component---the wick that LED light source 2, wick reflector 7 and wick cover 3 can be formed a whole.In figure, also illustrate, light fixture reflector 3 has adopted ladder-type structure, and this structure is conducive to reduce the height h of light fixture reflector 3, can obtain again bigbore light fixture light-emitting window (being large-area light fixture reflector reflective surface), realizes the illuminating lamp of height optically focused.

The sidewall of wick cover 11 adopts diffusion material or diffusing structure, and be designed to towards the reflective surface of light fixture reflector 3, equally also can realize the light change direction that the overwhelming majority (more than 70%) is sent from LED light source 2, be irradiated on the reflecting surface of light fixture reflector 3, then reflect light fixture.Fluorescent material (such as blue light being become to the fluorescent material of white light) has astigmatic characteristic, thereby fluorescence coating can be arranged in or beyond the sidewall of wick cover 11, this fluorescence coating is the diffusion material of wick cover 11, is again the transition material (such as blue light converts white light to) of the light of LED light source 2

In Fig. 6, the sidewall of wick cover 11, adopting has diffusion material or diffusing structure, and is designed to recede, thereby from the light that the sidewall of wick cover 11 penetrates throws light on the reflective surface of light fixture reflector 3 more.Heat conduction core 10 in Fig. 6 has adopted taper bolt structure, is conducive to solve the transmission of heat by contact thermal resistance between heat conduction core 10 and fin 6, and the light fixture reflector 3 in figure is arc-shaped curved surface.

Fig. 7 shows a kind of wick of the present utility model, includes LED light source 2 and heat-conducting plate 1 and light source light distribution lens 4, the same with Fig. 1 of its operation principle.In figure, α represents the illumination angle of wick, the illumination angle of the light sending from wick more than 2/3rds should be greater than 60 °, be conducive to like this reduce the high h of light fixture reflector (size of light fixture), and only penetrating from light fixture reflector of guaranteeing that the overwhelming majority (more than 70%) irradiates from light fixture.Heat-conducting plate 1 also can change heat conduction core 10 shown in Fig. 5,6 into.

Fig. 8 shows a kind of wick of the present utility model, includes LED light source 2, heat conduction core 10, wick reflector 7 and wick cover 11, has adopted the heat conduction core 10 of taper (taper shape) structure, and heat conduction core 10 also can change heat-conducting plate 1 structure in Fig. 1,2,3 into.In figure, α represents the illumination angle of wick, the illumination angle of the light sending from wick has more than 2/3rds should be greater than 60 °, be conducive to like this reduce the high h of light fixture reflector (size of light fixture), and only penetrating from light fixture reflector of guaranteeing that the overwhelming majority (more than 70%) irradiates from light fixture.Other technical characterictic is also shown in Fig. 8, LED light source 2 is provided with lamp pearl prefocus cup 13, LED lamp pearl on LED light source 2 is through lamp pearl prefocus cup 13 optically focused, illumination angle diminishes, be convenient to like this luminous intensity distribution design of wick reflector 7, reduce the size (diameter) (the namely size of wick) of wick reflector 7.The difference of wick shown in Fig. 9 and Fig. 8 is: the wick shown in Fig. 9 is provided with wick reflector light reflection tunable arrangement, the same with shown in Fig. 4 of its structural principle.

Light source substrate area in the utility model is defined as: the transmission of heat by contact area of the transmission of heat by contact area of heat-conducting plate and LED light source (being exactly the area of heat-conducting plate substantially) or heat conduction core front end and LED light source (being exactly heat conduction core front end area substantially).The light source of one 10 1 * 1mm LED wafers, light source substrate diameter is got 20mm (this light source substrate is very little), its area is 31 times of 10 LEDs chip areas, if the area of the reflective surface of light fixture reflector is 5 times of light source substrate, the pharosage that can realize light fixture can be reduced to 1/150th (the reducing by 150 times) of maximum local (LED wafer 1 * 1mm) pharosage, the reflective surface of light fixture reflector adopts the light source substrate area of 10 times, can reduce by 300 times, illustrate that employing technical solutions of the utility model can be very simply (low cost), and very effectively reduce pharosage, solve glare problem, its effect is significant.

In Fig. 1,3,4 and 5, transmission of heat by contact face between the light fixture reflector 3 that heat-conducting plate 1 or heat conduction core 10 are made with metallic plate is directly to contact, in actual product design, due to Structural Design Requirement, also can adopt the transmission of heat by contact face of mediate contact, basic object is exactly the fin that utilizes light fixture reflector to be LED light source, can reduce cost like this, reduces light fixture size.Aluminum material, thermal conductivity is high, lightweight, and price is not high yet, and easily punch process is shaped, thereby aluminium plate is the manufacture material of first-selected light fixture reflector.

According to the utility model, propose above, the light sending from wick, more than 2/3rds illumination angles is greater than 60 °, by geometrical relationship, can calculate, realize the light overwhelming majority that light fixture irradiates and be while reflecting from light fixture reflector 3, the high h of light fixture reflector 3 equals D/2 * tan60 ° of (D is the diameter of the light-emitting window of light fixture reflector)=0.29D, adds the height of wick.The high h that light fixture reflector is described effectively reduces, and can be shaped with punch press one-off drawing, and punch ram technique is than spinning process, and production efficiency is much higher.Height h reduces, and the reflective surface level of stretch of light fixture reflector is low, and light fixture reflector just can directly adopt the metallic plate punching that reflective mirror has been processed to be processed into, and without later stage reflective mirror treatment process, thereby cost can reduce again.Height h reduces, and the height of whole light fixture also reduces.During design, preferably choose the light sending from wick, more than 2/3rds illumination angle α is greater than 80 °, and height h can further reduce again like this, and more light reflects from light fixture reflector, and the pharosage of whole lamp is more even, softer.

LED light source local light flux density is high, produces the shortcoming of dazzle, but that LED light source has size is little, and direction of illumination is concentrated the feature of (unidirectional irradiation) forward.Compare conventional light source (incandescent lamp, fluorescent lamp etc.) size large, 360 ° of uniform irradiations, and the illumination light that people need is more unidirectional irradiation, the feature of LED light source just shows superiority aspect lighting lamp light distributing.The technical scheme more than the utility model proposes, just takes full advantage of the superiority of LED light source feature, and utilizes the optical characteristics that mirror-reflection efficiency is high, eliminated glare problem, the light efficiency of light fixture is higher, and fitting structure is simpler, cost is lower, easily realizes various lamp distribution.The luminous intensity distribution design of existing disclosed LED lamp does not just make full use of the feature of LED light source.

Special declaration: the LED light source in the utility model has comprised oled light source.

Claims

1. a semi-conductor lighting lamp, include LED light source (2) and light fixture reflector (3), LED light source (2) is furnished with heat-conducting plate (1) or heat conduction core (10), LED light source (2) is located at the middle part of light fixture reflector (3), it is characterized in that: the light that LED light source (2) sends has on the reflective surface that more than 70% is mapped to light fixture reflector (3), then to light fixture external reflectance; The area of the reflective surface of light fixture reflector (3) is the more than five times of LED light source (2) place substrate area; At the front light source light distribution lens (4) that are provided with of LED light source (2), from LED light source (light of 2)s, after light source light distribution lens (4), has on the reflective surface that more than 70% is irradiated to light fixture reflector (3), or

In LED light source (2) the place ahead, be provided with wick reflector (7), this wick reflector (7) reflexes to the light of more than 70% sending out from LED light source (2) on the reflective surface of light fixture reflector (3), or

The front wick cover (11) that is provided with of LED light source (2), wick cover (11) is provided with towards the sidewall of the reflective surface of light fixture reflector (3), and this sidewall has adopted diffusing structure or diffusion material.

2. semi-conductor lighting lamp according to claim 1, is characterized in that: while adopting wick reflector (7), be provided with wick reflector light angle of reflection tunable arrangement in semi-conductor lighting lamp.

3. semi-conductor lighting lamp according to claim 1, it is characterized in that: light fixture reflector (3) has adopted metallic plate to make, and be provided with heat-conducting plate (1) or the heat conduction core (10) with LED light source (2), directly the transmission of heat by contact face of contact or mediate contact.

4. according to the semi-conductor lighting lamp described in any one in claims 1 to 3, it is characterized in that: light fixture reflector (3) has adopted ladder-type structure.

5. a semiconductor lighting wick, include LED light source (2), heat-conducting plate (1) or heat conduction core (10), it is characterized in that: LED light source (2) dead ahead is provided with light source light distribution lens (4), the light being sent by LED light source (2) penetrates after light source light distribution lens (4), has the illumination angle of more than 2/3rds light to be greater than 60 °.

6. a semiconductor lighting wick, include LED light source (2), heat-conducting plate (1) or heat conduction core (10), it is characterized in that: the front wick cover (11) that is provided with of LED light source (2), in LED light source (2) the place ahead, in wick cover (11), be provided with wick reflector (7), from LED light source (2), send, be irradiated to the light on the reflective surface of wick reflector (7), be reflected on the sidewall of wick cover (11), this sidewall has adopted diffusing structure or diffusion material.

7. wick according to claim 6, is characterized in that: the sidewall of wick cover (11) recedes.

8. a semiconductor lighting wick, include LED light source (2), heat-conducting plate (1) or heat conduction core (10), it is characterized in that: the front wick cover (11) that is provided with of LED light source (2), the sidewall of wick cover (11) has adopted transparent material, in LED light source (2) the place ahead, in wick cover (11), be provided with wick reflector (7), the illumination of sending from LED light source (2) is mapped to wick reflector (7), partly or entirely be reflected, from wick cover (11) sidewall, penetrate, the light penetrating from wick has three minutes more than two illumination angles to be greater than 60 °.

9. wick according to claim 8, is characterized in that: on LED light source (2), be provided with lamp pearl prefocus cup (13).

10. wick according to claim 8 or claim 9, is characterized in that: wick is provided with wick reflector light angle of reflection adjustable apparatus.