CN102927471A - Light emitting diode lamp - Google Patents
Light emitting diode lamp Download PDFInfo
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- CN102927471A CN102927471A CN201210431134XA CN201210431134A CN102927471A CN 102927471 A CN102927471 A CN 102927471A CN 201210431134X A CN201210431134X A CN 201210431134XA CN 201210431134 A CN201210431134 A CN 201210431134A CN 102927471 A CN102927471 A CN 102927471A
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- led
- lamp housing
- led lamp
- lamp
- reflection subassembly
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Abstract
The invention discloses a light emitting diode lamp which comprises a base, a light emitting diode packaging structure, a lamp housing and a light reflection component, wherein the base comprises a bearing surface and a periphery; the light emitting diode packaging structure is arranged on the bearing surface of the base; the lamp housing is arranged at the periphery of the base; the lamp housing is provided with a cover body and a hollow cylinder; and the light reflection component is arranged in the hollow cylinder of the lamp housing and detachably arranged on the cover body so that the light emitting diode lamp is capable of achieving high brightness and high illumination wide angle at the same time.
Description
Technical field
The present invention relates to a kind of led lamp, particularly relates to a kind of led lamp that is comprised of encapsulation structure of LED.
Background technology
Light emitting diode (Light Emitting Diode, LED) be the solid-state light-emitting component made from semi-conducting material, materials'use III-V family semiconductor element (as: gallium phosphide (GaP), GaAs (GaAs) etc.), principle of luminosity is to convert electrical energy into luminous energy, namely compound semiconductor is applied electric current, sees through the combination in electronics and electric hole, superfluous energy can disengage with the form of light, reach luminous effect, it is luminous to belong to cold property, and the life-span reached more than 100,000 hours.
The characteristics of light emitting diode maximum are: need not warm up the lamp time, reaction speed is fast, volume is little, power-saving, shatter-proof, pollute low, be fit to volume production, the tool high-reliability, the needs on the fit applications are made the assembly of minimum or array type easily.Light-emitting diode component can only send the ruddiness of low-light level in early days, develops afterwards other monochromatic product, and the light that can send has even to this day spreaded all over visible light, infrared ray and ultraviolet ray, and suitable brightness is also brought up in brightness.And its purposes is also by at the beginning as indicator lamp, display board etc.; Continuous gradually being developed to is used as illumination along with the appearance of white light emitting diode.When pursuing scientific and technological progress, people also recognize environmental protection and energy-conservation importance, so replace the inexorable trend that traditional lighting has become development in science and technology with led lamp.
Yet, the operating voltage of existing single light emitting diode package assembly is also about three ten-day period of hot season spy, and its lighting angle and brightness are still very limited, if will be as lighting use, usually must on a column support of a light fixture, solid plug assembling and be electrically connected a plurality of single light emitting diode package assemblies, to promote whole lamp brightness and light angle.Because each light fixture (bulb) has comprised a plurality of separately single light emitting diode package assemblies independently, therefore also so that the assembling complicated of led lamp and cost can't reduce.In addition, the lamp shade structure of most existing led lamps designs so that most light longitudinally penetrates towards the place ahead of lampshade, but only having minority light is that radial radiation outwards penetrates to provide all side illuminations, so the not high and all side irradiations of the overall brightness of led lamp wide-angle not quite also is a problem that must overcome.
So, be necessary to provide a kind of led lamp, to solve the existing problem of prior art.
Summary of the invention
In view of this, the invention provides a kind of led lamp, to solve the not high and little high problem of irradiation wide-angle of existing led lamp brightness.
For reaching aforementioned purpose of the present invention, one embodiment of the invention provides a kind of led lamp, and described led lamp comprises a pedestal, an encapsulation structure of LED, a lamp housing and a smooth reflection subassembly.Described pedestal comprises a loading end and a periphery, described encapsulation structure of LED is arranged on the loading end of described pedestal, described lamp housing is arranged on the periphery of described pedestal, and described lamp housing has a lid and a hollow circular cylinder, and described smooth reflection subassembly is arranged on interior and dismountable being installed on the described lid of the hollow circular cylinder of described lamp housing.
Moreover one embodiment of the invention provides a kind of led lamp, and described led lamp comprises a pedestal, an encapsulation structure of LED, a lamp housing and a smooth reflection subassembly.Described pedestal comprises a loading end and a periphery, described encapsulation structure of LED is placed on the loading end of described pedestal, described lamp housing is arranged on the periphery of described pedestal, and described lamp housing has a lid and a hollow circular cylinder, the angle of described lid and described hollow circular cylinder is less than 90 degree, and the hollow circular cylinder of described lamp housing is interior to be reached on the described lid and described smooth reflection subassembly is arranged on.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is the stereogram of the light emitting diode bulb of one embodiment of the invention.
Fig. 2 A is the longitudinal sectional view of the led lamp of Fig. 1 of the present invention.
Fig. 2 B is the decomposition side view of the led lamp of Fig. 2 A of the present invention.
Fig. 2 C is the top view of the encapsulation structure of LED of Fig. 2 A of the present invention.
Fig. 3 A is the longitudinal sectional view of the led lamp of another embodiment of the present invention.
Fig. 3 B is the top view of the encapsulation structure of LED of Fig. 3 A of the present invention.
Fig. 4 is the longitudinal sectional view of the led lamp of yet another embodiment of the invention.
The specific embodiment
For allowing above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment of the present invention cited below particularly, and cooperation accompanying drawing are described in detail below:
Please refer to shown in Figure 1ly, Fig. 1 is the stereogram of the light emitting diode bulb of one embodiment of the invention.The described light emitting diode bulb of one embodiment of the invention from top to bottom roughly comprises a light fixture 100 and a lamp socket 200 two large divisions.Described light fixture 100 is arranged on the described lamp socket 200, and described light fixture 100 can be dispelled the heat by the radiating fin of described lamp socket 200.
Please refer to shown in Fig. 2 A, 2B and the 2C, Fig. 2 A is the longitudinal sectional view of the described light fixture 100 of Fig. 1 of the present invention, and Fig. 2 B is the decomposition side view of the described light fixture 100 of Fig. 2 A of the present invention, and Fig. 2 C is the top view of the described encapsulation structure of LED 10 of Fig. 2 A of the present invention.Described light fixture 100 comprises an encapsulation structure of LED 10, a pedestal 20, a lamp housing 30 and a smooth reflection subassembly 40.
Described encapsulation structure of LED 10 comprises a light-emitting diode chip for backlight unit 11, a circuit board 12 and an encapsulation glue-line 13, described light-emitting diode chip for backlight unit 11 is can be set directly to carry out colloid on the described circuit board 12 again and encapsulate to form a chip on board (Chip on Board, COB) encapsulation pattern, but be not limited to this.It is a white light-emitting diode chip that described light-emitting diode chip for backlight unit 11 for example comprises, and the mode of arranging with matrix is arranged on the described circuit board 12.
Described pedestal 20 comprises a loading end 21 and a periphery 22, and described encapsulation structure of LED 10 is placed on the loading end 21 of described pedestal 20.Described lamp housing 30 is arranged on the periphery 22 of described pedestal 20, makes the described encapsulation structure of LED 10 can be by described pedestal 20 and described lamp housing 30 with outside isolated, again can be simultaneously by described pedestal 20 with thermal energy conduction described lamp socket 200 extremely.Moreover, described pedestal 20 is made by thermal diffusivity good metal material or plastic material, metal material for example is aluminium (Aluminum, Al) material or aluminium alloy, and plastic material for example is Merlon (Polycarbonate, PC) or polymethyl methacrylate (Polymethyl Methacrylate, PMMA), but not as limit; Described pedestal 20 can be connected or directly one-body molded with described lamp socket 200 is hot, is dispelled the heat by described lamp socket 200 by described pedestal 20 to help described encapsulation structure of LED 10.
Described lamp housing 30 can be a multi-piece type assembly.Described lamp housing 30 has a lid 31 and a hollow circular cylinder 32.Particularly, described lid 31 is in fact the plane of a circle and mutually combines with described hollow circular cylinder 32; The under shed diameter that the upper shed diameter that described hollow circular cylinder 32 and described lid 31 join joins greater than described hollow circular cylinder 32 and described pedestal 20, that is, the side-looking outward appearance of described lamp housing 30 is the truncated cone column type (truncated cone) of a handstand wide at the top and narrow at the bottom and slightly outwards is convex arc-shape from described lid 31 to described hollow circular cylinder 32, angle theta between wherein said lid 31 and the described hollow circular cylinder 32 is less than 90 degree, for example between 50 to 80 degree, therefore has less volume.The diameter of the lid 31 of described light fixture 100 for example is 60 microns (mm) approximately, and the height of described lamp housing 30 for example is 25 microns (mm) approximately.
The lid 31 of described lamp housing 30 and described hollow circular cylinder 32 can be as the basis with plastic material, mix again the scattering particles with plastic material tool different optical refractive index, for example described scattering particles can be silica (SiO2) particles, so can improve the optical scattering rate of described lamp housing 30 and the optical uniformity of emergent light; And plastic material can be including but not limited to Merlon (Polycarbonate, PC) or polymethyl methacrylate (Polymethyl Methacrylate, PMMA).In an embodiment, described lid 31 and described hollow circular cylinder 32 can be the scattering particles that mix respectively identical or different ratio in plastic material, or in case of necessity, also can mix the scattering particles of tool different optical refractive index, but not as limit.
In addition, lid 31 inner surfaces of described lamp housing 30 can be by dismountable mode in conjunction with described smooth reflection subassembly 40, for example at described lid 31 at least one draw-in groove 31a is set, and correspondence arranges at least one latch 40a at described smooth reflection subassembly 40, described smooth reflection subassembly 40 and described lid 31 can be by described latch 40a and described draw-in groove 31a with the assemblings that locks of the mode of rotation clip, but described smooth reflection subassembly 40 also can lock by the mode that screw thread locks with described lid 31, and not as limit; In addition, described lid 31 can be mutually affixed by mode and the described hollow circular cylinder 32 of the welding of viscose or ultrasonic, or mutually locks by the mode that rotation clip or screw thread lock; Moreover, described hollow circular cylinder 32 also can be by screw thread lock, viscose binds or rotate the mode such as clip and described pedestal 20 locks mutually, but is not limited to this.
Described smooth reflection subassembly 40 is arranged in the hollow circular cylinder of described lamp housing 30 and is installed on the inner surface of described lid 31, in order to described encapsulation structure of LED 10 emitted light beams are carried out optical reflection.Described smooth reflection subassembly 40 is taper (cone) structure of standing upside down and comprises a conical reflecting surface 41, a basal part 42 and a top 43, described basal part 42 engages with the inner surface of the lid 31 of described lamp housing 30, described conical reflecting surface 41 extends to described top 43 from described basal part 42 towards described encapsulation structure of LED 10 undergauges (tapered), and described conical reflecting surface 41 43 at cross section is arc line shaped from described basal part 42 to described top according to the relative allocation position of described light emitting diode 11.Described smooth reflection subassembly 40 is arranged on the inner surface place of the cover body part 31 of described lamp housing 30 by described basal part 42, the diameter of described basal part 42 system is less than the diameter at least 20% of described cover body part 31, so that the ring-shaped area 33 of the periphery that the cover body part 31 of described lamp housing 30 is not covered by described smooth reflection subassembly 40 also can allow internal light penetrate thus to the top of described light fixture 100.
Moreover, described smooth reflection subassembly 40 can be to have the high-reflectivity metal coating of coating aluminium or silver in its surface, or made and can mix again the reflection grain (for example titanium dioxide (TiO2) particle) with high optical reflectivity by plastic material, so that described smooth reflection subassembly 40 can provide described conical reflecting surface 41, its optical reflectivity is higher than 80%, even can reach more than 95%.
Shown in Fig. 2 A and Fig. 2 C, described light-emitting diode chip for backlight unit 11 rectangular arrangements and described smooth reflection subassembly 40 are a cone structure that stands upside down, when encapsulation structure of LED 10 electrified light emitting, the light-emitting diode chip for backlight unit 11 that is arranged on the described circuit board 12 can be launched light beam towards all directions by different positions.Therefore, a part of light beam can directly penetrate be emitted to behind the hollow circular cylinder 32 of described lamp housing 30 described light fixture 100 around, or directly penetrate not a ring-shaped area of the lid 31 that is covered by described smooth reflection subassembly 40 and be emitted to the top of described light fixture 100; After another part light beam then can carry out optical reflection by the conical reflecting surface 41 of described smooth reflection subassembly 40, penetrate again be emitted to behind the hollow circular cylinder 32 of described lamp housing 30 and the lid 31 described light fixture 100 around or the top.And, again by the optical reflectivity that mixes reflection grain in described smooth reflection subassembly 40 and improve described smooth reflection subassembly 40, and by the optical uniformity of mixing described scattering particles in described lamp housing 30 and improve optical scattering rate and emergent light.So, can be so that described light fixture 100 reaches high brightness and high all side irradiation wide-angles simultaneously.Light fixture 100 of the present invention mainly outwards penetrates light so that 360 degree full circular illuminations to be provided in order to radial radiation, need to be specially adapted to the illumination application of side lighting.
Please refer to shown in Fig. 3 A, the light fixture of another embodiment of the present invention is similar in appearance to Fig. 2 A embodiment of the present invention, and roughly continue to use same components title and figure number, but the difference characteristic of present embodiment is: the described smooth reflection subassembly 40 of present embodiment is truncated cone column (truncated cone) structure (being horn-like structure) of standing upside down, the conical reflecting surface 41 of described smooth reflection subassembly 40 extends towards described pedestal 20 from the lid 31 of described lamp housing 30, and the relative allocation position that described conical reflecting surface 41 is complied with described light emitting diode 11 is arc line shaped.
In addition, please refer to shown in Fig. 3 A and Fig. 3 B, Fig. 3 B is the top view of the described encapsulation structure of LED 10 of Fig. 3 A of the present invention.Described circuit board 12 in the form of a ring, and its central authorities are hollow out to make things convenient for routing electric wires, described each light-emitting diode chip for backlight unit 11 is that packed glue-line 13 encapsulates to form a plurality of packaging bodies independently, and be arranged on the described circuit board 12 in the mode of annular arrangement, so that described encapsulation structure of LED 10 integral body in the form of a ring, present embodiment also can be the encapsulation pattern of chip on board, in another embodiment, described light fixture 100 also can adopt a plurality of separate described encapsulation structure of LEDs 10, and wherein said encapsulation structure of LED 10 can be the equidistant annular arrangement (not illustrating) that is the isolated island formula centered by described smooth reflection subassembly 40.
Again as shown in Figure 3A, described light-emitting diode chip for backlight unit 11 is to arrange in the form of a ring centered by described smooth reflection subassembly, when encapsulation structure of LED 10 electrified light emitting, can make described light-emitting diode chip for backlight unit 11 launch light beam by different positions towards all directions.Therefore, a part of light beam can directly penetrate the hollow circular cylinder 32 of described lamp housing 30 and be emitted to described light fixture 100 around, or directly penetrate not a ring-shaped area of the lid 31 that is covered by described smooth reflection subassembly 40 and be emitted to the top of described light fixture 100; After another part light beam can carry out optical reflection by the conical reflecting surface 41 of described smooth reflection subassembly 40, penetrate again described hollow circular cylinder 32 and lid 31 rear emissions and to described light fixture 100 around or the top.And, again by the optical reflectivity that mixes described reflection grain and improve described smooth reflection subassembly 40, mix described scattering particles and improve the optical scattering rate of described lamp housing 30 and the optical uniformity of emergent light.So, can be so that described light fixture 100 reaches high brightness and high all side irradiation wide-angles simultaneously.Light fixture 100 of the present invention mainly outwards penetrates light so that 360 degree full circular illuminations to be provided in order to radial radiation, need to be specially adapted to the illumination application of side lighting.
Please refer to shown in Figure 4, the light fixture of another embodiment of the present invention is similar in appearance to Fig. 2 A of the present invention and Fig. 3 A embodiment, and roughly continue to use same components title and figure number, but the difference characteristic of present embodiment is: the described smooth reflection subassembly 40 of present embodiment is a truncated cone column structure that stands upside down, the conical reflecting surface 41 of described smooth reflection subassembly 40 extends towards described pedestal 20 from the lid 31 of described lamp housing 30, and described smooth reflection subassembly 40 does not directly contact the loading end 21 of described pedestal 20, and form an opening 44 at described conical reflecting surface 41, described opening 44 is approximately perpendicular to the central shaft of described smooth reflection subassembly 40, and possesses a distance with the loading end 21 of described pedestal 20.In addition, the described encapsulation structure of LED 10 of present embodiment can be rectangular configuration (such as Fig. 2 C) or circulus (such as Fig. 3 B), also can be the equidistant annular arrangement that centered by described smooth reflection subassembly 40, is the isolated island formula, but not as limit.
As shown in Figure 4, launch light beam by different positions towards all directions when described light-emitting diode chip for backlight unit 11, a part of light beam directly penetrates described hollow circular cylinder 32, or directly penetrates not a ring-shaped area of the lid 31 that is covered by described smooth reflection subassembly 40; Behind part conical reflecting surface 41 optical reflections of light beam by described smooth reflection subassembly 40, penetrate again described hollow circular cylinder 32 and lid 31 after, penetrate described light fixture 100; Another part light beam penetrates from the opening 44 of described smooth reflection subassembly 40, improving the amount of light of described light fixture 100 middle parts, and then reaches high brightness and high irradiation wide-angle.
The present invention is described by above-mentioned related embodiment, yet above-described embodiment is only for implementing example of the present invention.Must be pointed out that published embodiment does not limit the scope of the invention.Opposite, be contained in the spirit of claims and modification and impartial setting of scope and be included in the scope of the present invention.
Claims (10)
1. led lamp, it is characterized in that: described led lamp comprises:
One pedestal comprises a loading end and a periphery;
One encapsulation structure of LED is arranged on the loading end of described pedestal;
One lamp housing is arranged on the periphery of described pedestal, and described lamp housing has a lid and a hollow circular cylinder; And
One smooth reflection subassembly is arranged in the hollow circular cylinder of described lamp housing and dismountable being installed on the described lid.
2. led lamp as claimed in claim 1, it is characterized in that: the hollow circuit cylinder system of described lamp housing is presented wide lower narrow structure.
3. led lamp as claimed in claim 1, it is characterized in that: the material of described lamp housing is that plastic material mixes scattering particles.
4. led lamp as claimed in claim 1 is characterized in that: described smooth reflection subassembly and described lid lock mutual combination by rotating clip or screw thread.
5. led lamp as claimed in claim 1 is characterized in that: described lid and hollow circular cylinder and described hollow circular cylinder and pedestal respectively by viscose, ultrasonic welding, rotate clip or screw thread locks mutual combination.
6. led lamp as claimed in claim 1 is characterized in that: described smooth reflection subassembly is a cone structure that extends towards described encapsulation structure of LED undergauge, and the rectangular shape of described encapsulation structure of LED is arranged.
7. led lamp as claimed in claim 1, it is characterized in that: described smooth reflection subassembly is a truncated cone column structure that extends towards described encapsulation structure of LED undergauge, and described encapsulation structure of LED is arranged centered by described smooth reflection subassembly in the form of a ring.
8. led lamp as claimed in claim 1 is characterized in that: described smooth reflection subassembly is a cone structure that extends towards described encapsulation structure of LED undergauge, and forms an opening on the described conical reflecting surface.
9. led lamp as claimed in claim 1 is characterized in that: described smooth reflection subassembly is to have the reflection grain of mixing or coating high-reflectivity metal coating.
10. led lamp, it is characterized in that: described led lamp comprises:
One pedestal comprises a loading end and a periphery;
One encapsulation structure of LED is placed on the loading end of described pedestal;
One lamp housing is arranged on the periphery of described pedestal, and described lamp housing has a lid and a hollow circular cylinder, and an angle of described lid and described hollow circular cylinder is less than 90 degree; And
One smooth reflection subassembly is arranged in the hollow circular cylinder of described lamp housing and on the described lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431134XA CN102927471A (en) | 2012-11-02 | 2012-11-02 | Light emitting diode lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431134XA CN102927471A (en) | 2012-11-02 | 2012-11-02 | Light emitting diode lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927471A true CN102927471A (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210431134XA Pending CN102927471A (en) | 2012-11-02 | 2012-11-02 | Light emitting diode lamp |
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| Country | Link |
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| CN (1) | CN102927471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214643A (en) * | 2013-05-31 | 2014-12-17 | 深圳市海洋王照明工程有限公司 | Marking rod for taxiway |
| WO2014206360A1 (en) * | 2013-06-28 | 2014-12-31 | 宁波福泰电器有限公司 | Wide angle luminous led light bulb |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2771635Y (en) * | 2004-09-06 | 2006-04-12 | 北京空管工程技术有限公司 | Running track side-lamp |
| CN201866672U (en) * | 2010-11-02 | 2011-06-15 | 杭州富光科技有限公司 | Marine LED (light emitting diode) all-round lamp |
| CN102449386A (en) * | 2009-04-06 | 2012-05-09 | 克里公司 | Reflector system for lighting device |
| CN202484868U (en) * | 2012-02-24 | 2012-10-10 | 范裕雄 | Lighting device |
| CN102720961A (en) * | 2012-05-30 | 2012-10-10 | 上舜照明（中国）有限公司 | LED (light emitted diode) candle lamp capable of lightening in entire space |
-
2012
- 2012-11-02 CN CN201210431134XA patent/CN102927471A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2771635Y (en) * | 2004-09-06 | 2006-04-12 | 北京空管工程技术有限公司 | Running track side-lamp |
| CN102449386A (en) * | 2009-04-06 | 2012-05-09 | 克里公司 | Reflector system for lighting device |
| CN201866672U (en) * | 2010-11-02 | 2011-06-15 | 杭州富光科技有限公司 | Marine LED (light emitting diode) all-round lamp |
| CN202484868U (en) * | 2012-02-24 | 2012-10-10 | 范裕雄 | Lighting device |
| CN102720961A (en) * | 2012-05-30 | 2012-10-10 | 上舜照明（中国）有限公司 | LED (light emitted diode) candle lamp capable of lightening in entire space |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214643A (en) * | 2013-05-31 | 2014-12-17 | 深圳市海洋王照明工程有限公司 | Marking rod for taxiway |
| WO2014206360A1 (en) * | 2013-06-28 | 2014-12-31 | 宁波福泰电器有限公司 | Wide angle luminous led light bulb |
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Application publication date: 20130213 |