CN108150847B - LED lamp with mixed red light beads and green light beads - Google Patents
LED lamp with mixed red light beads and green light beads Download PDFInfo
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- CN108150847B CN108150847B CN201711343348.0A CN201711343348A CN108150847B CN 108150847 B CN108150847 B CN 108150847B CN 201711343348 A CN201711343348 A CN 201711343348A CN 108150847 B CN108150847 B CN 108150847B
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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
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
-
- 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
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/237—Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases
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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
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
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- 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
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- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- 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
- F21Y2113/00—Combination of light sources
- F21Y2113/10—Combination of light sources of different colours
- F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
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- 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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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 invention discloses an LED lamp with a mixture of red light beads and green light beads, which comprises a lamp cap, a lamp cup arranged on the lamp cap, a driving power supply arranged on the lamp cup, a heat-conducting substrate connected with the lamp cup, an aluminum substrate connected with the heat-conducting substrate, a plurality of red light LED patch lamp beads and a plurality of green light LED patch lamp beads arranged on the aluminum substrate, and a lamp shade connected with the lamp cup; red light LED paster lamp pearl and green glow LED paster lamp pearl staggered arrangement in proper order, drive power supply is connected with each red light LED paster lamp pearl and each green glow LED paster lamp pearl electricity respectively. The invention has the characteristics of high luminous efficiency and high color rendering index.
Description
Technical Field
The invention relates to the technical field of LED lamps, in particular to an LED lamp with high luminous efficiency and high color rendering index and formed by mixing red light beads and green light beads.
Background
The LED lamp bead in the prior art is manufactured by adopting a process of coating a blue light chip with yellow fluorescent powder (or directly adopting red powder and green powder), and the color temperature of the lamp bead is changed and the color rendering index of the lamp bead is adjusted by adjusting the proportion of the red powder and the green powder in the yellow fluorescent powder. The increase of the proportion of red powder can improve the color rendering index, but can reduce the light effect; the increase of green powder can improve the light effect, but can reduce the color rendering index, so that the high light effect and the high color rendering index are a pair of spears theoretically.
For the LED lamp beads with high color rendering index (Ra is greater than 90), under the condition of adopting the same chip size and packaging process, the light effect of the lamp beads with Ra greater than 80 is lower by more than 15 percent due to the fact that the proportion of red powder in fluorescent powder is high.
Disclosure of Invention
The invention aims to overcome the defect of low luminous efficiency caused by the manufacturing process of the LED lamp beads in the prior art, and provides the LED lamp with high luminous efficiency and high color rendering index and formed by mixing the red light beads and the green light beads.
In order to achieve the purpose, the invention adopts the following technical scheme:
an LED lamp with mixed red light beads and green light beads comprises a lamp cap, a lamp cup arranged on the lamp cap, a driving power supply arranged on the lamp cup, a heat conduction substrate connected with the lamp cup, an aluminum substrate connected with the heat conduction substrate, a plurality of red light LED patch lamp beads and a plurality of green light LED patch lamp beads arranged on the aluminum substrate, and a lamp shade connected with the lamp cup; the red light LED surface mounted lamp beads and the green light LED surface mounted lamp beads are sequentially arranged in a staggered mode, and the driving power supply is electrically connected with each red light LED surface mounted lamp bead and each green light LED surface mounted lamp bead respectively; be equipped with temperature-sensing structure on the aluminium base board, be equipped with 2 air vents on the lamp shade, temperature-sensing structure and 2 push-and-pull structural connection.
According to the invention, monochromatic red LED patch lamp beads and monochromatic green LED patch lamp beads are adopted and are mixed and pasted on the aluminum substrate in a ratio of 1: 1, a milky white lampshade is additionally arranged, the color rendering index tested by mixed light emitted by red light and green light can reach Ra more than 90, the light effect is 10-15% higher than that of a single Ra90 lamp bead, and the light effect level of Ra80 lamp beads is reached, so that the requirement of realizing high light effect and high color rendering index is met.
The arrangement of the temperature sensing structure, the vent hole and the push-pull structure ensures that the aluminum substrate has better heat dissipation performance, when the aluminum substrate has high temperature, the vent hole is opened, and when the aluminum substrate has normal temperature, the vent hole is shielded.
Preferably, each red light LED patch lamp bead and each green light LED patch lamp bead are arranged into a ring shape.
Preferably, the value range of the color coordinate X of the red LED patch lamp bead is 0.60-0.63, and the value range of the color coordinate Y is 0.31-0.34; the wavelength of the red LED patch lamp bead is 600nm-620 nm.
Preferably, the value range of the color coordinate X of the green LED patch lamp bead is 0.30-0.37, and the value range of the color coordinate Y is 0.44-0.47; the wavelength of the red LED patch lamp bead is 550nm-570 nm.
Preferably, the heat conducting substrate is annular, and the heat conducting edge is provided with an annular groove. An annular bag is arranged in the annular groove and filled with water.
Preferably, the aluminum substrate is annular and is connected with the heat-conducting substrate through a plurality of screws; the temperature induction structure comprises a copper ring arranged on the outer edge of the aluminum substrate and 2 metal balls connected with the copper ring, wherein the outer surface of each metal ball is provided with a telescopic fold, and a plurality of springs are arranged in each metal ball.
Preferably, the push-pull structure comprises a U-shaped fixing plate arranged at the bottom of the lampshade and a baffle plate capable of penetrating through the fixing plate, the baffle plate can shield 1 vent hole, and the baffle plate is connected with the metal ball through a steel wire.
Preferably, the lamp cup has a horn shape with a large opening at the upper end.
Preferably, the lampshade is shaped like an 3/4 sphere.
Therefore, the invention has the following beneficial effects: high light efficiency, high apparent indicate, can realize mixing the adjustment of light lamp pearl colour temperature at 2700K-3500K within range.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of one configuration of the temperature sensing arrangement and push-pull arrangement of the present invention;
fig. 3 is a schematic structural view of the copper ring of the present invention.
In the figure: the LED lamp comprises a lamp cap 1, a lamp cup 2, a driving power supply 3, a heat conducting substrate 4, an aluminum substrate 5, red LED patch lamp beads 6, green LED patch lamp beads 7, a lampshade 8, a temperature sensing structure 9, an air vent 10, a push-pull structure 11, an annular groove 41, a screw 51, a copper ring 91, a metal ball 92, a U-shaped fixing plate 111 and a baffle plate 112.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1, the LED lamp with a mixture of red light beads and green light beads includes a lamp cap 1, a lamp cup 2 disposed on the lamp cap, a driving power supply 3 disposed on the lamp cup, a heat conducting substrate 4 connected to the lamp cup, an aluminum substrate 5 connected to the heat conducting substrate, 4 red light LED patch beads 6 and 4 green light LED patch beads 7 disposed on the aluminum substrate, and a lamp shade 8 connected to the lamp cup; red light LED paster lamp pearl and green glow LED paster lamp pearl staggered arrangement in proper order, drive power supply is connected with each red light LED paster lamp pearl and each green glow LED paster lamp pearl electricity respectively. The heat conducting edge is provided with an annular groove 41. The aluminum substrate is annular and is connected with the heat conducting substrate through 2 screws 51.
As shown in fig. 3, the aluminum substrate is provided with a temperature sensing structure 9, the temperature sensing structure includes a copper ring 91 disposed on an outer edge of the aluminum substrate and 2 metal balls 92 shown in fig. 2 connected to the copper ring, the outer surfaces of the metal balls are provided with flexible wrinkles, and the metal balls are provided with 6 springs therein.
The lampshade is provided with 2 vent holes 10, and the temperature sensing structure is connected with 2 push-pull structures 11. The push-pull structure comprises a U-shaped fixing plate 111 arranged at the bottom of the lampshade and a baffle plate 112 capable of penetrating through the fixing plate, wherein the baffle plate can shield 1 vent hole and is connected with a metal ball through a steel wire. The lamp cup is in a horn shape with a large opening at the upper end. The lampshade is in the shape of 3/4 spherical surfaces.
Each red light LED paster lamp bead and each green light LED paster lamp bead are arranged into a ring shape.
The value range of the color coordinate X of the red LED patch lamp bead is 0.60, and the value of the color coordinate Y is 0.31; the wavelength of the red LED patch lamp beads is 600 nm.
The value of a color coordinate X of the green LED patch lamp bead is 0.30, and the value of a color coordinate Y is 0.44; the wavelength of the red LED patch lamp beads is 550 nm.
Taking 28359V 1W lamp beads with the largest use amount in the market as an example, according to the packaging technology of 3 chips connected in series commonly adopted by products (Sanan) 1028,
the measured 3000K Ra90 lamp bead parameters are shown in the table I:
watch 1
The parameters of the red light and green light monochromatic lamp beads are shown in the following tables II and III:
watch two
Watch III
| 28359V 100mA monochromatic green light bead | 100 | 8.92 | 891.90 | 167.30 | 187.61 | 0.3437 | 0.4458 | 5238 | 62.2 | -105 |
| 28359V 100mA monochromatic green light bead | 100 | 8.97 | 897.10 | 168.20 | 187.52 | 0.3435 | 0.4451 | 5243 | 62.3 | -105 |
| 28359V 100mA monochromatic green light bead | 100 | 8.99 | 899.40 | 164.60 | 183.08 | 0.3427 | 0.4428 | 5260 | 62.3 | -104 |
| 28359V 100mA monochromatic green light bead | 100 | 9.01 | 900.50 | 164.90 | 183.13 | 0.3429 | 0.4433 | 5257 | 62.3 | -105 |
| 28359V 100mA monochromatic green light bead | 100 | 8.96 | 895.90 | 166.90 | 186.30 | 0.3436 | 0.4453 | 5240 | 62.2 | -105 |
| 28359V 100mA monochromatic green light bead | 100 | 9.01 | 900.80 | 164.40 | 182.55 | 0.3436 | 0.4452 | 5240 | 62.3 | -105 |
| 28359V 100mA monochromatic green light bead | 100 | 8.92 | 891.90 | 166.60 | 186.83 | 0.3441 | 0.4459 | 5230 | 62.2 | -105 |
| 28359V 100mA monochromatic green light bead | 100 | 9.01 | 900.60 | 165.10 | 183.39 | 0.3432 | 0.4446 | 5250 | 62.3 | -104 |
| AVG | 100 | 8.97 | 897.26 | 166.00 | 185.05 | 0.3434 | 0.4448 | 5245 | 62.3 | -105 |
3000K Ra80 bead parameters were measured as shown in Table four:
watch four
From the comparative data (mean) of the above tables, it can be seen that:
the luminous flux of a normal RA80 lamp bead is 115lm, and the luminous efficiency is 130.7 lm/W;
the light flux 104.99Lm of the RA90 lamp bead, the light flux 116Lm/W,
the pearly-lustre flux of the monochromatic red light lamp is 61.9Lm, the luminous efficiency is 69.261m/W,
166lm luminous flux of monochromatic green light bead and 185.051m/W luminous efficiency
The luminous efficiency of the lamp bead of RA90 is lower than that of RA80 by nearly 12%; the luminous sum of the red light lamp beads and the green light lamp beads is higher than the luminous efficiency of RA90 by nearly 10%, and the luminous efficiency is basically equivalent to that of the lamp beads of RA 80.
The whole lamp test data is as follows:
comparative analysis from the data above:
the average value 1393Lm of the luminous flux of the lamp bead of RA80, the average value 95.78Lm/W of the luminous efficiency and the average value 82.3 of RA;
the average light flux value 1251Lm, the average light effect value 85.91Lm/W and the average RA value 91.7 of the lamp beads of RA 90;
the average value of the luminous flux of the lamp beads mixed and pasted with the red light and the green light is 1372Lm, the average value of the lighting effect is 93.87Lm/W, and the average value of RA is 92.2;
the data show that the light effect of the whole lamp made by the mixed paste of the monochromatic red and green light beads reaches 98% of that of the whole lamp of the RA80 bead, the color rendering index RA reaches the high color rendering index requirement of more than 90, and the requirement of high light efficiency and high color rendering property is completely met.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (6)
1. An LED lamp with mixed red light beads and green light beads is characterized by comprising a lamp cap (1), a lamp cup (2) arranged on the lamp cap, a driving power supply (3) arranged on the lamp cup, a heat conducting substrate (4) connected with the lamp cup, an aluminum substrate (5) connected with the heat conducting substrate, a plurality of red light LED patch lamp beads (6) and a plurality of green light LED patch lamp beads (7) arranged on the aluminum substrate, and a lamp shade (8) connected with the lamp cup; the red light LED surface mounted lamp beads and the green light LED surface mounted lamp beads are sequentially arranged in a staggered mode, and the driving power supply is electrically connected with each red light LED surface mounted lamp bead and each green light LED surface mounted lamp bead respectively; the aluminum substrate is provided with a temperature sensing structure (9), the lampshade is provided with 2 vent holes (10), and the temperature sensing structure is connected with 2 push-pull structures (11); the aluminum substrate is annular and is connected with the heat-conducting substrate through a plurality of screws (51); the temperature induction structure comprises a copper ring (91) arranged on the outer edge of the aluminum substrate and 2 metal balls (92) connected with the copper ring, wherein the outer surface of each metal ball is provided with a telescopic fold, and a plurality of springs are arranged in each metal ball; the push-pull structure comprises a U-shaped fixing plate (111) arranged at the bottom of the lampshade and a baffle (112) capable of penetrating through the fixing plate, wherein the baffle can shield 1 vent hole and is connected with a metal ball through a steel wire.
2. The LED lamp of claim 1, wherein each of the red LED patch lamp beads and each of the green LED patch lamp beads are arranged in a circular ring shape.
3. The LED lamp mixed by the red light bead and the green light bead as claimed in claim 1, wherein the color coordinate X of the red LED patch bead ranges from 0.60 to 0.63, and the color coordinate Y ranges from 0.31 to 0.34; the wavelength of the red LED patch lamp bead is 600nm-620 nm.
4. The LED lamp with the mixture of red light beads and green light beads as claimed in claim 1, wherein the heat-conducting substrate is annular, and the heat-conducting edge is provided with an annular groove (41).
5. The LED lamp mixed by the red light bead and the green light bead as claimed in claim 1, wherein the lamp cup is in a horn shape with a large opening at the upper end.
6. The LED lamp mixed by the red light beads and the green light beads as claimed in claim 1, 2, 3, 4 or 5, wherein the lampshade is 3/4 spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711343348.0A CN108150847B (en) | 2017-12-14 | 2017-12-14 | LED lamp with mixed red light beads and green light beads |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711343348.0A CN108150847B (en) | 2017-12-14 | 2017-12-14 | LED lamp with mixed red light beads and green light beads |
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| CN108150847A CN108150847A (en) | 2018-06-12 |
| CN108150847B true CN108150847B (en) | 2020-01-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201198966Y (en) * | 2008-03-31 | 2009-02-25 | 鹤山丽得电子实业有限公司 | LED light fitting |
| US20110090669A1 (en) * | 2009-10-20 | 2011-04-21 | Tsung-Ting Sun | Led lighting device and light source module for the same |
| US8829773B2 (en) * | 2012-03-05 | 2014-09-09 | Led Technology Group Llc | Lighting apparatus with light-emitting diode chips and remote phosphor layer |
| JP2014078467A (en) * | 2012-10-12 | 2014-05-01 | Panasonic Corp | Lighting fixture, lighting device, and light emitting module |
| CN204629416U (en) * | 2015-05-31 | 2015-09-09 | 常山优博特机电科技有限公司 | An LED lamp tube with heat dissipation fan and moisture-proof function |
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