CN104329595B - The floodlight of LED reflector luminous intensity distributions - Google Patents
The floodlight of LED reflector luminous intensity distributions Download PDFInfo
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- CN104329595B CN104329595B CN201310309844.XA CN201310309844A CN104329595B CN 104329595 B CN104329595 B CN 104329595B CN 201310309844 A CN201310309844 A CN 201310309844A CN 104329595 B CN104329595 B CN 104329595B
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- Prior art keywords
- led
- reflector
- floodlight
- luminous intensity
- annular wall
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The technical field of floodlight of the present invention, the floodlight of LED reflector luminous intensity distributions is disclosed, is applied in tunnel, including LED module and reflector module, LED module includes substrate and multiple LED, and reflector module includes plate body, multiple through holes are provided with plate body, plate body upper surface is convexly equipped with multiple reflectors, reflector includes annular wall, and each annular wall is arranged around each through hole periphery respectively, encloses to form accommodating cavity, on the basis of parabola, LED is placed in accommodating cavity its inner surface.Floodlight is used in the environment of tunnel, using LED as light source, is realized and is irradiated via reflector luminous intensity distribution, under identical illumination requirement, LED is more environmentally-friendly than the more low energy consumption of other light sources；It is corresponded to multiple LED luminous intensity distributions respectively by the inner surface of the annular wall of multiple reflectors, it is possible to achieve large area lighting, annular wall are in be arranged around through hole, and the light that LED is sent can be caused to have preferable illumination uniformity；In addition, the die sinking shaping of reflector module is easy, the cost of floodlight is substantially reduced.
Description
Technical field
The present invention relates to the technical field of floodlight, more particularly to the floodlight of LED reflector luminous intensity distributions.
Background technology
At present, the road such as domestic factory, mining site, goods yard and port and pier, and roads and tunnels, coal mine, smelting
In the tunnel such as gold mine well and security protection hole in the ground, illumination is most of all to use Halogen lamp LED or electricity-saving lamp.Halogen lamp LED and electricity-saving lamp all compare
Compared with power consumption, it not environmentally, and for such light fixture, is typically necessary one reflector of design so that the light that light fixture is sent is tried one's best
It is irradiated on ground, and have ignored special large area lighting needs and preferable illumination uniformity, so, then is difficult to meet lane
The requirement of road large area lighting and the preferable uniformity of illumination.
For above-mentioned problem, now, also occur using tunnel lamps of the LED as light source on the market, but these
Following defect also be present in tunnel lamp：First, it is simply simply arranged LED, easily meet a certain performance requirement；Second,
Such light fixture needs to design, molds the complex reflection shield of making, could realize large area lighting or realize preferably illumination
The uniformity, its cost are too high.
In addition, National Development and Reform Committee issues《China is phased out incandescent lamp route map（Exposure draft）》, by 2011
On October 1 to 2012, on September be set to the transitional period for 30, from 1 day October in 2012, forbids 100 watts of sale and import and the above general
Logical illumination incandescent lamp, from 1 day October in 2016, forbid sale and 15 watts of import and above general lighting incandescent lamp.And save
The production of energy lamp be unable to do without the poisonous and harmful substance such as fluorescent material and mercury, and uses at present made by best three primary colors fluorescent powder most
Good light efficiency is also in 90lm/w or so, and as energy conservation and environmental awareness increasingly strengthen, electricity-saving lamp will also be eliminated.
The content of the invention
It is an object of the invention to provide the floodlight of LED reflector luminous intensity distributions, it is intended to solves tunnel lamp of the prior art
Not environmentally, it is difficult to large area lighting, the problem of preferable illumination uniformity and cost are high.
The present invention is achieved in that the floodlight of LED reflector luminous intensity distributions, applies in tunnel, including LED module and anti-
Light cup module, the LED module include substrate and multiple LED located at the base lower surface, the reflector module bag
Rubbing board body, multiple through holes are provided with the plate body, the plate body upper surface is convexly equipped with multiple reflectors, and the reflector includes convex
Annular wall located at the plate body upper surface, each annular wall around each through hole periphery arrangement, enclose to form appearance respectively
Chamber is put, the upper end of the annular wall is connected to the base lower surface, and on the basis of parabola, the LED is placed in its inner surface
In the accommodating cavity.
Compared with prior art, floodlight provided by the invention, it is used in the environment of tunnel, it uses LED as light source,
Realize and irradiate via reflector luminous intensity distribution, under identical illumination requirement, LED is more environmentally-friendly than the more low energy consumption of other light sources；Its
Corresponded to respectively to multiple LED luminous intensity distributions by the inner surface of the annular wall of multiple reflectors, it is possible to achieve large area lighting, annular wall
Arranged in around through hole, can cause the light that LED is sent that there is preferable illumination uniformity；In addition, the knot of reflector module
Structure is relatively easy, and die sinking shaping is easy, suitable for producing in enormous quantities, substantially reduces the cost of floodlight.
Brief description of the drawings
Fig. 1 is the exploded perspective schematic diagram of the floodlight of LED reflectors luminous intensity distribution provided in an embodiment of the present invention；
Fig. 2 is the cut-away illustration of the floodlight of LED reflectors luminous intensity distribution provided in an embodiment of the present invention；
Fig. 3 is the schematic perspective view of the reflector of reflector module provided in an embodiment of the present invention；
Fig. 4 is the cut-away illustration of the reflector of reflector module provided in an embodiment of the present invention；
Fig. 5 is reflector geometric optics reflection law schematic diagram provided in an embodiment of the present invention；
Fig. 6 is the light intensity distribution schematic diagram of the floodlight of LED reflectors luminous intensity distribution provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
It is described in detail below in conjunction with realization of the specific embodiment to the present invention.
As shown in figs. 1 to 6, it is a preferred embodiment provided by the invention.
The floodlight that the present embodiment provides is used in tunnel, such as roads and tunnels, coal mine, metallurgical mine, security protection
Hole in the ground etc., in the environment of tunnel, the requirement of its lighting area and illumination uniformity to floodlight is higher.Floodlight includes
LED module 11 and reflector module 12, LED module 11 include substrate 111 and projection in the multiple of the lower surface of substrate 111
The alternate arrangement of LED112, multiple LED112, as needed, can claim certain arranging rule to be distributed；Reflector module 12 wraps
Rubbing board body 121, multiple through holes through the upper and lower surface of plate body 121 are provided with plate body 121, and be convexly equipped with the upper surface of plate body 121
Multiple reflectors, reflector include projection the annular wall 122 on the upper surface of plate body 121, and the annular wall 122 is around the outer of through hole
Arrange in week, its encirclement forms accommodating cavity 125.
The quantity of reflector quantity and LED112 in above-mentioned is one-to-one, thus on plate body 121 reflector point
Cloth rule is consistent with LED112 distribution rule.Reflector module 12 is placed in the lower section of LED module 11, the upper end of annular wall 122
It is connected on the lower surface of substrate 111, and each LED112 is respectively placed in each annular wall 122 and surrounded in the accommodating cavity 125 formed.
The inner surface of annular wall 122 is as reflective surface, its face on the basis of parabola, that is to say, that annular wall 122 it is interior
Surface is formed by the bus circumferential ring of a curved shape around the axis of through hole, bus line on the basis of parabola.
LED112 is located in accommodating cavity 125, and it is placed in direct-injection type, and its optical axis overlaps with the axis of through hole, that is,
To say, LED112 light is in direct projection shape, and its light range projected is limited to 180 °, therefore, all light of its all injection
All via the inner surface primary event of annular wall 122, that is, project outside reflector, or, directly without the inner surface of annular wall 122
Reflection, then project outside reflector.
As shown in figure 5, the geometric optics reflection law principle schematic reflected for the light that light source is sent via reflector,
According to the principle, the shape of annular wall 122 can be set, it is specific as follows：
yi+1-yi=(Xi+1-Xi)tg(-b)
yi=Xitg(180°-ai)
Above-mentioned XiAnd yiIt is the coordinate value of the bus of the inner surface of annular wall 122 respectively, aiIt is in LED112 light and through hole
The angle of axis, b are the angles of reflection light and the inner surface of annular wall 122.
According to above-mentioned interative computation method, the bus coordinate points of reflector can be obtained, finally design single reflector.
In the present embodiment, the inner surface of annular wall 122 is designed by above-mentioned iterative formula, as shown in fig. 6, making
The illuminating effect that the floodlight meets 150 ° of width is obtained, the underface illumination of floodlight 1 is stronger, and illumination is uniform from center to periphery
Transition.Certainly, according to being actually needed, by being designed to the inner surface of annular wall 122, it is also possible that the illumination of floodlight
Width reaches other scopes.
The present embodiment provide floodlight, lighted using LED112, the light that LED112 is sent via reflector interior table
Face carries out luminous intensity distribution, and under identical illumination requirement, LED112 is lower and more environmentally-friendly than other any light source energy consumptions；In substrate 111
It is upper to configure multiple LED112, multiple reflectors are configured on plate body 121, it is so, corresponding to multiple LED112 by multiple reflectors
Carry out luminous intensity distribution, it is possible to achieve large area lighting effect, and the annular wall 122 of reflector is arranged around the periphery of through hole, Ke Yishi
The preferable illumination uniformity of existing floodlight；In addition, the above-mentioned structure of reflector module 12 is relatively easy, die sinking shaping is easy, fits
For producing in enormous quantities, the manufacturing cost of floodlight is substantially reduced.
The inner surface of reflector is face on the basis of parabola, and LED112 light sources in direct-injection type it is reflecting cup-shaped into it is accommodating
In chamber 125, so so that the light that LED112 is sent only needs primary event and injection or directly projected, and substantially reduces light source
Light decay, ensures the lighting requirement of the floodlight, realizes the requirement of large area lighting indirectly.
Specifically, above-mentioned LED112 and number of openings are at least more than four, and multiple LED112 and multiple through holes point
Not rectangular shape distribution, certainly, accordingly, the quantity of reflector is also more than four, and the quantity of itself and through hole is to correspond
, so, using the design method of rectangular-shaped distribution, floodlight can be caused to realize the effect of large area lighting, and realize compared with
Good illumination uniformity；In addition, so design can take into account the installation of other electronic components, while heat-dissipating space is bigger,
, can be with flexible arrangement and spatial margin is big
In the present embodiment, substrate 111 is provided with 12PCS3W LED112, and 12PCS LED112 arranges arrangement, phase by 2 rows 6
Answer, the through hole on plate body 121 is also 12, and reflector is also 12, and also arranges arrangement by 2 rows 6 respectively.Certainly, according to reality
Border needs, and LED112, through hole and reflector quantity are it can also be provided that other numbers, are not limited in the present embodiment
Set-up mode.
The upper end of above-mentioned reflector extends to form upper head plate 123 towards inner bending, the upper head plate 123 shape in a ring, middle
The hollow region 124 to form connection accommodating cavity 125 is enclosed, so, when LED module 11 and reflector module 12 are assembled together
When, the upper head plate 123 of reflector is connected on substrate 111, so as to which the LED112 on the lower surface of substrate 111 then passes through hollow area
Domain 124, it is placed in the accommodating cavity 125 of reflector.
Specifically, LED112 is placed in the accommodating cavity 125 of reflector, and its light-emitting area and the lower surface of upper head plate 123 are in
Same plane, so, ensure that the light that LED112 is projected is penetrated on the inner surface of the annular wall 122 of reflector, or directly penetrate
Go out outside reflector, realize to the irradiant luminous intensity distributions of LED112, reduce light decay.In addition, it can so ensure that LED112 projects light
Line is in the range of 180 °, will not be projected upward.
Certainly, in order to more preferably realize that reflector more preferably coordinates with LED112, the shape of above-mentioned hollow region 124 with
LED112 corresponding matching.
In order to realize reflector it is irradiant to LED112 preferably reflection, it is above-mentioned in annular wall 122 inner surface and
The inner surface of upper head plate 123 is all sticked vacuum plated aluminum film respectively, and certainly, carrying the surface of LED112 exiting surfaces need not then be sticked
Hollow aluminizer.
Reflector module 12 in the present embodiment, its is simple in construction, is made of PC or ABS material, and is penetrated for the material
Go out one-shot forming manufacture, that is, the reflector module 12 is integrally formed.
Certainly, when carrying out LED module 11 and reflector module 12 and assembling, for the ease of assembling, and cause LED112 with
Reflector position correspondence is accurate, and limited post is convexly equipped with the upper surface of plate body 121, corresponding, is then provided with substrate 111 spacing
Hole, so, in assembling, directly limited post is alignd insertion with spacing hole, between guarantee LED module 11 and reflector module 12
Assembling it is accurate, and efficiency of assembling is high.
Certainly, limited post can also projection on the lower surface of substrate 111, accordingly, spacing hole is then arranged on plate body
In 121, so, it can also realize that both assemblings are accurate.
As other embodiments, the spacing knot between the substrate 111 of above-mentioned LED module 11 and the plate body 121 of reflector
Structure can also be other structures, be not limited in above-mentioned limited post and spacing hole.For example, it may be it is mutually clamped the two of cooperation
Grab, or, can be other various structures.
In the present embodiment, the substrate of LED module is connected with the plate body of lens module by fasteners such as screws, certainly,
Can use other connected modes.
In the present embodiment, the substrate 111 of LED module 11 is aluminum base plate, and LED112 is by being welded to connect in substrate 111
On lower surface.Or other fixed forms can also be passed through so that LED112 is fixed on the lower surface of substrate 111.
In the present embodiment, in order to protect LED112 not by environmental pollution, and in order to play explosion-proof, floodlight also includes
Outer cover 13, there is opening upward formed with recessed sunk area 131, the sunk area 131 in the outer cover 13.LED module
11 and reflector module 12 be individually positioned in the sunk area 131 of outer cover 13, the light projected from reflector can be direct
Outside is incident upon by outer cover 13, and outer cover 13 then protects LED112 not polluted by external environment condition, and when LED112 breaks down
Explosion time, outer cover 13 can protect outworker injured.
For the ease of the installation of outer cover 13, the periphery of the opening of the sunk area 131 of outer cover 13 extends outwardly have peace respectively
Side plate 132 is filled, the installation side plate 132 is arranged around the opening periphery of sunk area 131.The installation side plate 132 can be with outside
Other mates, so as to realize the installation of floodlight 1.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (6)
- The floodlight of 1.LED reflector luminous intensity distributions, it is characterised in that apply in tunnel, including LED module and reflector module, The LED module includes substrate and multiple LED located at the base lower surface, and the reflector module includes plate body, institute State and multiple through holes are provided with plate body, the plate body upper surface is convexly equipped with multiple reflectors, and the reflector is described including being convexly equipped in The annular wall of plate body upper surface, each annular wall around each through hole periphery arrangement, encloses to form accommodating cavity respectively, described The upper end of annular wall is connected to the base lower surface, and for its inner surface on the basis of parabola, the LED is placed in the accommodating cavity In；The reflector module is formed in one, and the annular wall upper end extends the upper head plate to form ring-shaped, institute towards inner bending That states upper head plate encloses the hollow region to be formed and connect the accommodating cavity, and the upper head plate is connected on the substrate；The plate Body upper surface is provided with spacing hole or is convexly equipped with limited post, and the base lower surface is convexly equipped with the limit with the spacing hole corresponding matching Position post or provided with the spacing hole with the limited post corresponding matching；At the lower surface of the exiting surface of the LED and the upper head plate In same plane.
- 2. the floodlight of LED reflectors luminous intensity distribution as claimed in claim 1, it is characterised in that the LED is in the accommodating cavity Placed in direct projection shape, its optical axis overlaps with the axis of the through hole.
- 3. the floodlight of LED reflectors luminous intensity distribution as claimed in claim 1 or 2, it is characterised in that multiple LED are in described Rectangular shape arrangement on substrate, multiple reflectors are in rectangular shape arrangement on the plate body.
- 4. the floodlight of LED reflectors luminous intensity distribution as claimed in claim 1 or 2, it is characterised in that the inner surface of the annular wall Being sticked has hollow aluminizer.
- 5. the floodlight of LED reflectors luminous intensity distribution as claimed in claim 1 or 2, it is characterised in that the floodlight also includes putting Outer cover below the reflector module, is provided with recessed sunk area in described, the sunk area has opening upward Mouthful, the LED module and the reflector module are respectively placed in the sunk area.
- 6. the floodlight of LED reflectors luminous intensity distribution as claimed in claim 5, it is characterised in that the sunk area periphery is outwardly Bending is extended with installation side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310309844.XA CN104329595B (en) | 2013-07-22 | 2013-07-22 | The floodlight of LED reflector luminous intensity distributions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310309844.XA CN104329595B (en) | 2013-07-22 | 2013-07-22 | The floodlight of LED reflector luminous intensity distributions |
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| Publication Number | Publication Date |
|---|---|
| CN104329595A CN104329595A (en) | 2015-02-04 |
| CN104329595B true CN104329595B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310309844.XA Active CN104329595B (en) | 2013-07-22 | 2013-07-22 | The floodlight of LED reflector luminous intensity distributions |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1400747A2 (en) * | 2002-09-18 | 2004-03-24 | DaimlerChrysler AG | Projector with frustopyramidal reflector structures |
| CN101162075A (en) * | 2006-10-11 | 2008-04-16 | 宁波安迪光电科技有限公司 | Bar-shaped LED projecting light |
| CN101988684A (en) * | 2009-08-04 | 2011-03-23 | 海洋王照明科技股份有限公司 | Combined light reflecting cup |
| CN201973636U (en) * | 2011-02-23 | 2011-09-14 | 福建雨露光电科技有限公司 | LED (Light Emitting Diode) reflection cup lamp panel |
| CN202024147U (en) * | 2011-04-11 | 2011-11-02 | 哈尔滨万瑞光电仪器有限公司 | Single-high-power-LED (Lighting-emitting Diode) lamp for illumination |
| CN102537847A (en) * | 2010-12-31 | 2012-07-04 | 海洋王照明科技股份有限公司 | Combined type reflector and lamp |
-
2013
- 2013-07-22 CN CN201310309844.XA patent/CN104329595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1400747A2 (en) * | 2002-09-18 | 2004-03-24 | DaimlerChrysler AG | Projector with frustopyramidal reflector structures |
| CN101162075A (en) * | 2006-10-11 | 2008-04-16 | 宁波安迪光电科技有限公司 | Bar-shaped LED projecting light |
| CN101988684A (en) * | 2009-08-04 | 2011-03-23 | 海洋王照明科技股份有限公司 | Combined light reflecting cup |
| CN102537847A (en) * | 2010-12-31 | 2012-07-04 | 海洋王照明科技股份有限公司 | Combined type reflector and lamp |
| CN201973636U (en) * | 2011-02-23 | 2011-09-14 | 福建雨露光电科技有限公司 | LED (Light Emitting Diode) reflection cup lamp panel |
| CN202024147U (en) * | 2011-04-11 | 2011-11-02 | 哈尔滨万瑞光电仪器有限公司 | Single-high-power-LED (Lighting-emitting Diode) lamp for illumination |
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| CN104329595A (en) | 2015-02-04 |
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