CN219718535U - COB LED lamp with changeable color temperature - Google Patents
COB LED lamp with changeable color temperature Download PDFInfo
- Publication number
- CN219718535U CN219718535U CN202320961100.5U CN202320961100U CN219718535U CN 219718535 U CN219718535 U CN 219718535U CN 202320961100 U CN202320961100 U CN 202320961100U CN 219718535 U CN219718535 U CN 219718535U
- Authority
- CN
- China
- Prior art keywords
- color
- lamp
- electrode pad
- column
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000003292 glue Substances 0.000 claims description 24
- 239000011521 glass Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000003086 colorant Substances 0.000 description 5
- 238000005286 illumination Methods 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Led Devices (AREA)
Abstract
The utility model provides a color temperature-variable COB LED lamp, which comprises a substrate, wherein 4 light emitting diodes, a public positive electrode pad, a negative electrode pad DW for controlling cold color and a negative electrode pad WW for controlling warm color are arranged on the substrate, the light emitting diodes are arranged in two rows and two columns, a first light emitting diode in a first column and a second light emitting diode in a second column are connected in series to form a first lamp group, the first light emitting diode in the first column and the first light emitting diode in the second column are connected in series to form a second lamp group, the two lamp groups are connected to the public positive electrode pad, the first lamp group is connected with the negative electrode pad DW for controlling cold color, and the second lamp group is connected with the negative electrode pad WW for controlling warm color. The controller adjusts the output pulse width to adjust the current of the two negative electrode bonding pads, so that the color temperature is adjusted, and the beneficial effect of multiple color temperatures of one lamp is further obtained.
Description
Technical Field
The utility model relates to the technical field of lighting equipment, in particular to a COB LED lamp with changeable color temperature.
Background
Along with the improvement of living standard, human beings have different demands on light color parameters such as brightness, color temperature, color rendering index and the like of a light source under different environments, and the conventional incandescent lamp and the conventional gas discharge lamp cannot meet the demands of human beings on various aspects of the light source.
Meanwhile, a Light Emitting Diode (LED) is used as a currently mainstream green illumination light source, has the advantages of energy conservation, environmental protection, high luminous efficiency and the like, and in the illumination application field, as the color temperature range can reach 1800K to 10000K, the up-down floating value is very large, so that how to realize the adjustment of different color temperatures under different scenes becomes an important research direction of the current light source technology development.
With respect to the related art described above, it is considered that since in the conventional art, one COB LED lamp has only one color temperature, a user must add COB LED lamps of other color temperatures to the combination to mix colors if he wants other color temperatures, but the color mixing finally presents still a single color temperature.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a COB LED lamp with changeable color temperature, which solves the problem that the COB LED lamp with other color temperatures can only be added for increasing the color temperature in the prior art.
According to the technical scheme of the utility model, the COB LED lamp with the changeable color temperature comprises a substrate, 4 light emitting diodes, a public positive electrode pad, a negative electrode pad DW for controlling cold color and a negative electrode pad WW for controlling warm color are arranged on the substrate, the light emitting diodes are arranged in a two-row X two-column mode, a first column and a second column are sequentially arranged from left to right, the first light emitting diode of the first column and the second light emitting diode of the second column are connected in series to form a first lamp group, the first light emitting diode of the first column and the first light emitting diode of the second column are connected in series to form a second lamp group, one end of each of the two lamp groups is connected with the public positive electrode pad, the other end of each of the first lamp group is connected with the negative electrode pad DW for controlling cold color, cold color fluorescent glue is arranged on each light emitting diode of the first lamp group, and each light emitting diode of the second lamp group is provided with warm color fluorescent glue.
The technical principle of the utility model is as follows: when an operator adjusts the color temperature each time, the controller adjusts the output pulse width according to the feedback current, adjusts the current of the negative electrode pad DW for controlling the cold color and the negative electrode pad WW for controlling the warm color, and can adjust the color temperature of two lamp groups, so that the effect of multi-color temperature adjustment of one lamp is realized, the problem that in the prior art, if a user wants other color temperatures, the user needs to add COB LED lamps with other color temperatures on the combination to mix colors is solved, and as the two LEDs contained in each lamp group are positioned on different columns, the fluorescent glue arranged on two adjacent LEDs is also different in color from top to bottom on each row of LED fluorescent glue, so that the color temperature of the whole lamp is more uniformly mixed.
Compared with the prior art, the utility model has the following beneficial effects: the controller is used for adjusting the output pulse width according to the feedback current, and adjusting the current of the negative electrode pad DW used for controlling cold color and the negative electrode pad WW used for controlling warm color, so that the color temperature of the two lamp groups can be adjusted, the problem that in the traditional technology, if a user wants other color temperatures, the user needs to add COB LED lamps with other color temperatures on the combination to mix colors is solved, and the color temperatures of the whole lamps are uniformly mixed due to different upper, lower, left and right fluorescent colors of the light emitting diodes, so that the beneficial effect of multi-color temperature adjustment of one lamp is generated.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a COB LED lamp with changeable color temperature in an embodiment of the utility model.
Fig. 2 is a schematic diagram of an internal structure of a COB LED lamp with a changeable color temperature according to an embodiment of the utility model.
In the above figures: 1, a step of; a substrate 2 and a glass cover; 3. a through hole; 4. a positive electrode pad; 5. a light emitting diode; 6. a negative electrode pad WW; 7. a negative electrode pad DW; 8. and a hole groove.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the embodiment of the utility model provides a COB LED lamp with changeable color temperature, which comprises a substrate 1, wherein 4 light emitting diodes 5, a public positive electrode pad 4, a negative electrode pad DW7 for controlling cold color and a negative electrode pad WW6 for controlling warm color are arranged on the substrate 1, the light emitting diodes 5 are arranged in two rows and two columns, a first column and a second column are sequentially arranged from left to right, a first light emitting diode 5 in the first column and a second light emitting diode 5 in the second column are connected in series to form a first lamp group, a first light emitting diode 5 in the first column and a second light emitting diode 5 in the second column are connected in series to form a second lamp group, one end of each of the two lamp groups is connected with the public positive electrode pad 4, the other end of the first lamp group is connected with the negative electrode pad WW6 for controlling cold color, each light emitting diode 5 on the first lamp group is provided with a fluorescent glue for controlling warm color, and each fluorescent glue 5 on the second lamp group is provided with fluorescent glue for warm color.
The specific operation flow is as follows: when an operator adjusts the color temperature each time, the controller adjusts the output pulse width according to the feedback current, and adjusts the current of the negative electrode pad DW7 for controlling the cold color and the negative electrode pad WW6 for controlling the warm color, so that the color temperature of the two lamp groups can be adjusted, the problem that in the prior art, if the user wants other color temperatures, the user needs to add COB LED lamps with other color temperatures on the combination to mix colors is solved, and the two LEDs 5 contained in each lamp group are positioned on different columns, so that the fluorescent glue arranged on each column of LED 5 is different in color above and below the fluorescent glue of each column of LED 5, and the fluorescent glue arranged on the two adjacent LEDs 5 is also different in color, so that the cold fluorescent glue and the warm fluorescent glue are alternately arranged left and right, the color temperature of the whole lamp is more uniformly mixed, and the color temperature of the whole lamp is uniformly mixed, so that the beneficial effect of multicolor temperature adjustment of one lamp is generated.
As shown in fig. 1, preferably, a glass cover 2 is fixedly connected to the middle position of the upper surface of the substrate, the area of the bottom surface of the glass cover 2 is smaller than that of the substrate 1, and the glass cover 2 just covers all the light emitting diodes 5. Because the two light emitting diodes 5 included in each lamp group are positioned on different columns, among the 4 light emitting diodes 5, the fluorescent glue arranged on each column of light emitting diode 5 is different in color from top to bottom, and the fluorescent glue arranged on the two adjacent light emitting diodes 5 is also different in color, so that the cold fluorescent glue and the warm fluorescent glue are alternately arranged from top to bottom and left to right, and in order to ensure that the color temperature of the whole lamp is more uniformly mixed, the illumination of the whole lamp is more uniformly represented by a uniform glass cover 2.
As shown in fig. 1, the glass cover 2 is preferably hemispherical or spherical crown-shaped. The hemispherical, approximately hemispherical or spherical crown-shaped shape of the glass cover 2 can ensure softer and more uniform external illumination to the greatest extent.
As shown in fig. 1, the glass cover 2 is preferably fixedly connected to the substrate 1 by means of adhesion. The scheme ensures better fixation of the glass cover 2 and the substrate 1 and reduces the trace of fixed connection by means of bonding in a later bonding or dispensing natural molding mode so as to avoid influencing illumination display, and the bonding mode can reduce the weight of the component, has uniform stress distribution of bonding interface, is superior to welding, riveting and the like, and can ensure the fatigue strength of the structural component; the adhesive process equipment investment is low, the use is simple, convenient, quick, safe and energy-saving; meanwhile, the method has strong adaptability and can meet special requirements.
As shown in fig. 1, preferably, the material of the substrate 1 is ceramic, and the top corner is provided with a through hole 3 for fixing connection. In the scheme, the ceramic substrate 1 is bright and clean in appearance, light and thin in material, high in strength and strong in impact resistance and shock resistance, is a safe and reliable material, is insulating, is very convenient to detach and maintain, and does not worry about safety accidents. On the other hand, the through center hole 3 at the vertex angle can facilitate the further installation of the substrate.
As shown in fig. 1, the base plate is preferably fixedly connected to the mating base by bolts. The bolt is adopted to fix the base plate in the scheme, so that the base plate is firm and can be conveniently detached later.
As shown in fig. 2, preferably, 4 holes 8 are formed in the substrate 1, the 4 holes 8 are also arranged in two rows and two columns, each hole 8 is fixedly connected with one led 5, and the warm fluorescent glue or the cold fluorescent glue is also disposed in the corresponding hole 8. According to the scheme, the two light emitting diodes 5 contained in each lamp set are located on different columns, so that the color temperatures of the whole lamp are more uniformly mixed, and the color temperatures of the whole lamp are uniformly mixed in the 4 light emitting diodes 5, wherein the fluorescent glue arranged on each column of the light emitting diode 5 is different in color from top to bottom, and the fluorescent glue arranged on the two adjacent light emitting diodes 5 is also different in color.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (7)
1. The utility model provides a COB LED lamp of changeable colour temperature which characterized in that: the LED lamp comprises a substrate, 4 LEDs, a public positive electrode pad, a negative electrode pad DW for controlling cold color and a negative electrode pad WW for controlling warm color are arranged on the substrate, the LEDs are arranged in two rows X and two columns, a first column and a second column are sequentially arranged from left to right, the first LED of the first column and the second LED of the second column are connected in series to form a first lamp group, the first LED of the first column and the first LED of the second column are connected in series to form a second lamp group, one ends of the two lamp groups are connected to the public positive electrode pad, the other end of the first lamp group is connected to the negative electrode pad DW for controlling cold color, the other end of the second lamp group is connected to the negative electrode pad WW for controlling warm color, cold color fluorescent glue is arranged on each LED of the first lamp group, and colored fluorescent glue is arranged on each warm LED of the second lamp group.
2. The COB LED lamp of claim 1 wherein the color temperature is variable: the middle position of the upper surface of the substrate is fixedly connected with a glass cover, the area of the bottom surface of the glass cover is smaller than that of the substrate, and the glass cover just covers all the light emitting diodes.
3. The COB LED lamp as set forth in claim 2, wherein: the glass cover is hemispherical or spherical crown-shaped.
4. The COB LED lamp as set forth in claim 2, wherein: the glass cover and the substrate are fixed in an adhesive mode.
5. The COB LED lamp of claim 1 wherein the color temperature is variable: the base plate material is ceramic, and the apex angle department is provided with the through core hole with base fixed connection.
6. The color temperature changeable COB LED lamp of claim 5 wherein: the base plate is fixedly connected to the matched base through bolts.
7. The COB LED lamp of claim 1 wherein the color temperature is variable: the substrate is provided with 4 hole slots, the 4 hole slots are also arranged in a mode of two rows and two columns, each hole slot is fixedly connected with one light emitting diode, and the warm color fluorescent glue or the cold color fluorescent glue is also arranged in the corresponding hole slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320961100.5U CN219718535U (en) | 2023-04-25 | 2023-04-25 | COB LED lamp with changeable color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320961100.5U CN219718535U (en) | 2023-04-25 | 2023-04-25 | COB LED lamp with changeable color temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219718535U true CN219718535U (en) | 2023-09-19 |
Family
ID=88003165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320961100.5U Active CN219718535U (en) | 2023-04-25 | 2023-04-25 | COB LED lamp with changeable color temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219718535U (en) |
-
2023
- 2023-04-25 CN CN202320961100.5U patent/CN219718535U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100547465C (en) | Backlight | |
| US9515056B2 (en) | Solid state lighting device including narrow spectrum emitter | |
| US11835185B2 (en) | Lamp bulb with flowing type light effect | |
| WO2021068538A1 (en) | Three-color led lamp bead, and led street lamp using same | |
| CN201326923Y (en) | Multifunctional LED illuminator | |
| CN101764067A (en) | Method for encapsulating similar solar spectrum LED | |
| CN1416171A (en) | Illuminator capable of changing color freely | |
| CN219718535U (en) | COB LED lamp with changeable color temperature | |
| CN202598261U (en) | High-light high color rendering index (CRI) warm white light light-emitting diode (LED) lamp and LED module | |
| CN208058603U (en) | The light-source structure of lamps and lanterns | |
| CN202392511U (en) | LED (light-emitting diode) lamp capable of freely adjusting colour temperature | |
| CN205919163U (en) | LED photovoltaic module and LED lamps and lanterns | |
| CN102720967A (en) | Color-temperature-adjustable high-color-rendering light source module | |
| CN114216074A (en) | Three-wire double-color COB lamp strip | |
| CN210349874U (en) | Three-color LED lamp bead and LED street lamp using same | |
| CN207921779U (en) | Light emitting diode filament module | |
| CN207500853U (en) | The LED filament and filament lamp of a kind of adjustable color temperature | |
| CN220510054U (en) | High-luminous-efficiency warm white light luminous element | |
| CN110375240A (en) | Ceiling lamp light source mould group and ceiling lamp | |
| CN220585247U (en) | High-efficient natural light luminous element | |
| CN212618060U (en) | Trinity RGB high pressure lamp pearl is adjusted luminance to mix colours and is shown lamp | |
| CN208204575U (en) | A kind of the dual-colored LED filament and double-colored inflation filament lamp of light emitting region non-resistance | |
| CN217816267U (en) | Multifunctional light source and multifunctional stage lighting system | |
| CN210107302U (en) | Structure for adjusting color temperature of LED lamp | |
| CN218385224U (en) | Small-angle COB light source substrate arrangement structure and COB lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |