CN220273908U - Multi-gear adjustable COB light source - Google Patents
Multi-gear adjustable COB light source Download PDFInfo
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- CN220273908U CN220273908U CN202320319221.XU CN202320319221U CN220273908U CN 220273908 U CN220273908 U CN 220273908U CN 202320319221 U CN202320319221 U CN 202320319221U CN 220273908 U CN220273908 U CN 220273908U
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- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000005538 encapsulation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model discloses a multi-gear adjustable COB light source, which comprises a substrate and a light-emitting area arranged on the substrate, wherein the light-emitting area comprises two groups of first light-emitting modules and second light-emitting modules with different color temperatures, and the output end of the first light-emitting module is connected with the input end of the second light-emitting module; the first light emitting module comprises a plurality of first light source groups connected in series, and the second light emitting module comprises a plurality of second light source groups connected in series; the input end of the first light source group is used for being connected with the working terminals of the first toggle switch in a one-to-one correspondence mode, the public terminal of the first toggle switch is connected with the positive electrode of the dimming driving power supply, the output end of the second light source group is used for being connected with the working terminals of the second toggle switch in a one-to-one correspondence mode, and the public terminal of the second toggle switch is connected with the negative electrode of the dimming driving power supply. The utility model is applicable to a single-path dimming driving power supply, can realize multi-gear dimming and color mixing effects, meets the actual requirements of users, and has simple overall architecture and low cost.
Description
Technical Field
The utility model relates to the technical field of LED light sources, in particular to a multi-gear adjustable COB light source.
Background
COB is widely used as a novel light source due to the advantages of long service life, high brightness and the like. The COB light source includes a COB light source of a single color temperature and a COB light source of a multiple color temperature. At present, most of the multi-color-temperature COB light sources are controlled by adopting a multi-path dimming driving power supply, namely, two paths of dimming driving power supplies control two paths of light source modules with different color temperatures to work so as to achieve the dimming and toning effects. However, the COB light source cannot be applied to a simple single-path dimming driving power supply, such as a silicon controlled rectifier dimmer circuit in a traditional home circuit, so that the actual requirement of a user cannot be met, and the COB light source works by adopting a multi-path dimming driving power supply, so that the overall architecture is complex and the cost is high.
Disclosure of Invention
The utility model aims to solve the technical problems that the utility model is applicable to a single-path dimming driving power supply, can realize the multi-gear dimming and color mixing effect, meets the actual requirements of users, and has simple overall architecture and low cost.
In order to solve the technical problems, the utility model provides a multi-gear adjustable COB light source, which comprises a substrate and a light-emitting area arranged on the substrate, wherein the light-emitting area comprises two groups of first light-emitting modules and second light-emitting modules with different color temperatures, and the output end of the first light-emitting module is connected with the input end of the second light-emitting module; the first light-emitting module comprises a plurality of first light source groups connected in series, the second light-emitting module comprises a plurality of second light source groups connected in series, and the first light source groups and the second light source groups are arranged in one-to-one correspondence; the input end of the first light source group is used for being connected with the working terminals of the first toggle switch in a one-to-one correspondence mode, the public terminal of the first toggle switch is connected with the positive electrode of the dimming driving power supply, the output end of the second light source group is used for being connected with the working terminals of the second toggle switch in a one-to-one correspondence mode, and the public terminal of the second toggle switch is connected with the negative electrode of the dimming driving power supply.
As an improvement of the scheme, the output end of the first light-emitting module is respectively connected with the working terminal of the first toggle switch and the working terminal of the second toggle switch; or the output end of the first light-emitting module is connected with the common terminal of the third toggle switch, and the working terminal of the third toggle switch is respectively connected with the positive electrode of the dimming driving power supply and the negative electrode of the dimming driving power supply.
As an improvement of the scheme, the input end of the first light-emitting module is connected with the output end of the second light-emitting module, and the input end of the first light-emitting module is respectively connected with the working terminal of the first toggle switch and the working terminal of the second toggle switch; or the input end of the first light-emitting module is connected with the common terminal of the fourth toggle switch, and the working terminal of the fourth toggle switch is respectively connected with the positive electrode of the dimming driving power supply and the negative electrode of the dimming driving power supply.
As an improvement of the scheme, wiring areas are further arranged on the substrate and are respectively located on two sides of the luminous areas, each wiring area comprises a plurality of wiring terminals, and the first luminous module and the second luminous module are respectively connected with corresponding working terminals through the wiring terminals.
As an improvement of the scheme, the first light-emitting module is a high-color-temperature light-emitting module, and the second light-emitting module is a low-color-temperature light-emitting module; or the first light-emitting module is a low-color-temperature light-emitting module, and the second light-emitting module is a high-color-temperature light-emitting module.
As an improvement of the scheme, the first light source group of the high-color-temperature light emitting module comprises a high-color-temperature light source group and a resistor which are connected in parallel, the high-color-temperature light source group comprises at least one high-color-temperature LED chip, and the second light source group of the low-color-temperature light emitting module comprises at least one low-color-temperature LED chip.
As an improvement of the above-mentioned scheme, the terminal is a pad terminal or a quick connection terminal.
As an improvement of the above scheme, the light emitting device further comprises an encapsulation layer, wherein the encapsulation layer is used for covering the light emitting area.
The implementation of the utility model has the following beneficial effects:
the multi-gear adjustable COB light source can be suitable for a single-way dimming driving power supply, the multi-gear dimming and color mixing effect of the COB light source can be realized by adjusting the gear of the toggle switch and the output state of the dimming driving power supply, the actual requirements of users are met, and the COB light source has simple overall framework and low cost.
Specifically, the output of first light emitting module is connected with the input of second light emitting module, and the input of a plurality of first light source groups is used for being connected with the operating terminal one-to-one of first toggle switch, and the positive pole of driving power supply that adjusts luminance is being connected to the public terminal of first toggle switch, and the output of a plurality of second light source groups is used for being connected with the operating terminal one-to-one of second toggle switch, and the public terminal of second toggle switch is connected with the negative pole of driving power supply that adjusts luminance. The number of the light source groups with different color temperatures in the power-on loop can be adjusted by adjusting the switch positions of the first toggle switch and the second toggle switch so as to realize the multi-gear color mixing effect of the COB light source; and the dimming effect of the COB light source is realized by adjusting the output current of the dimming driving power supply.
Drawings
FIG. 1 is a circuit diagram of the operation of a first embodiment of a multi-stage adjustable COB light source of the present utility model;
FIG. 2 is a specific circuit diagram of an inventive multi-stage tunable COB light source;
FIG. 3 is a schematic diagram of a first embodiment of an inventive multi-stage adjustable COB light source;
FIG. 4 is a circuit diagram of the operation of a second embodiment of the multi-stage adjustable COB light source of the present utility model;
FIG. 5 is a schematic diagram of a second embodiment of an inventive multi-stage adjustable COB light source;
FIG. 6 is a circuit diagram of the operation of a third embodiment of the multi-stage adjustable COB light source of the present utility model;
fig. 7 is a schematic structural view of a third embodiment of an inventive multi-stage adjustable COB light source.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent. It is only stated that the terms of orientation such as up, down, left, right, front, back, inner, outer, etc. used in this document or the imminent present utility model, are used only with reference to the drawings of the present utility model, and are not meant to be limiting in any way.
As shown in fig. 1, fig. 1 shows a working circuit diagram of a first embodiment of the multi-stage adjustable COB light source of the utility model, which comprises a substrate and a light emitting area arranged on the substrate, wherein the light emitting area comprises two groups of first light emitting modules 1 and second light emitting modules 2 with different color temperatures, and the output end of the first light emitting module 1 is connected with the input end of the second light emitting module 2; the first light-emitting module 1 comprises four first light source groups 11 connected in series, the second light-emitting module 2 comprises four second light source groups 21 connected in series, and the first light source groups 11 and the second light source groups 21 are arranged in one-to-one correspondence; the input end of the first light source group 11 is used for being connected with the working terminals of the first toggle switch 3 in a one-to-one correspondence manner, the public terminal of the first toggle switch 3 is connected with the positive electrode of the dimming driving power supply 4, the output end of the second light source group 21 is used for being connected with the working terminals of the second toggle switch 5 in a one-to-one correspondence manner, and the public terminal of the second toggle switch 5 is connected with the negative electrode of the dimming driving power supply 4. In other embodiments, the number of the first light source group 11 and the second light source group 21 can be adjusted according to the actual requirements to meet the actual requirements of different users.
The number of the light source groups with different color temperatures in the power-on loop can be adjusted by adjusting the switch positions of the first toggle switch 3 and the second toggle switch 5, so that the multi-gear temperature adjusting effect of the COB light source is realized. If the input end a of the first light source group 11 is connected to the positive pole of the dimming driving power supply 4 through the first toggle switch 3, the output end E of the first second light source group 21 or the output end F of the second light source group 21 or the output end G of the third second light source group 21 or the output end H of the fourth second light source group 21 is connected to the negative pole of the dimming driving power supply 4 through adjusting the second toggle switch 5, so that the number of light source groups with different color temperatures in the power-on circuit is different, different color temperature effects are achieved, and multi-stage color mixing effects of COB light sources are achieved. The dimming effect of the COB light source is achieved by adjusting the output current of the dimming driving power supply 4.
The dimming driving power supply 4 includes, but is not limited to, a silicon controlled dimming power supply, a PWM dimming power supply, and the like, and other dimming driving power supplies 4 having a function of changing the output current to achieve dimming may be selected. For example, when the COB light source of the utility model is applied to a silicon controlled rectifier dimming power supply circuit, the common terminal of the first toggle switch 3 and the common terminal of the second toggle switch 5 are respectively connected with the silicon controlled rectifier dimming power supply circuit in a matched manner, so that the COB light source is communicated with the silicon controlled rectifier dimming power supply circuit through the toggle switch, and the dimming effect of the COB light source can be realized by adjusting the output current of the silicon controlled rectifier dimming power supply circuit. When the COB light source of the present utility model is applied to other single dimming driving power source 4, the working principle thereof is the same as that described above, and will not be described in detail herein.
The utility model can be suitable for a single-path dimming driving power supply 4, can realize the multi-gear dimming and color mixing effect of the COB light source by adjusting the gear of the toggle switch and the output state of the dimming driving power supply 4 so as to render various lamplight color modes, enrich the visual effect of a human body, and meet the actual requirements of users.
Specifically, as shown in fig. 2, the first light emitting module 1 of the present embodiment is a high color temperature light emitting module, and the second light emitting module 2 is a low color temperature light emitting module; in other embodiments, the first light emitting module 1 may be a low color temperature light emitting module, and the second light emitting module 2 may be a high color temperature light emitting module. In the present embodiment, the first light source group 11 of the high color temperature light emitting module includes a high color temperature light source group 111 and a resistor 112 connected in parallel, and the high color temperature light source group 111 includes at least one high color temperature LED chip. The second light source group 21 of the low color temperature light emitting module includes at least one low color temperature LED chip.
In this embodiment, the resistor 112 is connected in parallel to the LED chip with high color temperature so that the driving current flowing through the LED chip with high color temperature is different from the driving current flowing through the LED chip with low color temperature, and the driving current of the LED chip with high color temperature and the driving current of the LED chip with low color temperature can be adjusted by adjusting the magnitude of the input driving current, so as to achieve the effects of dimming and temperature adjustment. In this embodiment, the number of the LED chips with high color temperature is the same as the number of the LED chips with low color temperature. In other embodiments, the number of the high color temperature LED chips and the low color temperature LED chips can be adjusted according to actual requirements.
As shown in fig. 3, fig. 3 is a schematic structural diagram of a first embodiment of the multi-stage adjustable COB light source of the utility model. The COB light source comprises a substrate 6 and a light emitting area 7 arranged on the substrate 6, wherein the light emitting area 7 comprises two groups of first light emitting modules and second light emitting modules with different color temperatures. The substrate 6 is further provided with wiring areas 8, the wiring areas 8 are respectively located on two sides of the light-emitting area 7, the wiring areas 8 comprise a plurality of wiring terminals 81, and the first light-emitting module and the second light-emitting module are respectively connected with corresponding working terminals through the wiring terminals 81.
It should be noted that, each connection end (for example, A, B, C and D) of the first light emitting module and each connection end (E, F, G, H) of the second light emitting module are respectively connected to a corresponding terminal 81 (for example, terminals 81A, B, C, D, E, F, G and H), and then connected to a corresponding working terminal through the terminal 81, so as to be electrically connected to the dimming driving power source. The terminal 81 of the present embodiment adopts a pad terminal, but is not limited thereto, and a quick terminal 81 may be adopted.
Preferably, an encapsulation layer is further included, which is used to cover the light emitting area 7. The packaging layer comprises, but is not limited to, a transparent silica gel layer or a micro-milky gel layer with a diffusion effect, and can be selected according to actual requirements.
As shown in fig. 4, fig. 4 shows a working circuit diagram of a second embodiment of the multi-stage adjustable COB light source of the utility model. The present embodiment differs from the first embodiment shown in fig. 1 in that the output I of the first light emitting module 1 is connected to the working terminal of the first toggle switch 3 and the working terminal of the second toggle switch 5, respectively.
The power-on loop is a loop of the light-emitting module with any color temperature by adjusting the toggle switch, so that the single-color temperature light-emitting function is realized. If the first toggle switch 3 is adjusted, the output end I of the first lighting module 1 is communicated with the positive electrode of the dimming driving power supply 4, and the output end E of the first second light source group 21 or the output end F of the second light source group 21 or the output end G of the third second light source group 21 or the output end H of the fourth second light source group 21 is communicated with the negative electrode of the dimming driving power supply 4 by adjusting the second toggle switch 5; or the second toggle switch 5 is adjusted to enable the output end I of the first light emitting module 1 to be communicated with the negative electrode of the dimming driving power supply 4, and the input end A of the first light source group 11 or the output end B of the second first light source group 11 or the output end C of the third first light source group 11 or the output end D of the fourth first light source group 11 is communicated with the positive electrode of the dimming driving power supply 4 through adjusting the first toggle switch 3, so that different single-color temperature functions can be realized through the adjustment mode.
The power-on loop is the loop of the light-emitting module with any color temperature or the loop of the multi-color-temperature light-emitting module through adjusting the toggle switch, so that the switching use of the single-color-temperature function and the multi-color-temperature function of the COB light source is realized, the actual requirements of users are met, and the use experience of the users is improved.
It should be noted that, in other embodiments, the output end of the first light emitting module 1 may be further connected to a common terminal of a third toggle switch, where the working terminal of the third toggle switch is connected to the positive electrode of the dimming driving power source 4 and the negative electrode of the dimming driving power source 4 respectively, so that the switching of the single color temperature or multi-color temperature functions of the COB light source can be achieved, the actual requirement of the user is met, and the use experience of the user is improved.
As shown in fig. 5, fig. 5 shows a schematic structural diagram of a second embodiment of the multi-stage adjustable COB light source of the utility model. The difference between this embodiment and the first embodiment shown in fig. 3 is that the wiring area 8 is further provided with a wiring terminal I, so that the output end of the first light emitting module is connected with the working terminal of the first toggle switch and the working terminal of the second toggle switch through the wiring terminal I, so as to realize that the output end of the first light emitting module is electrically connected with the dimming driving power supply.
As shown in fig. 6, fig. 6 shows a working circuit diagram of a third embodiment of the multi-stage adjustable COB light source of the utility model. The difference between this embodiment and the second embodiment shown in fig. 4 is that the input end of the first light emitting module 1 is connected to the output end of the second light emitting module 2 (i.e., the input end of the first light source group 11 is connected to the output end of the fourth second light source group 21 in the second embodiment), so that the first light emitting module 1 and the second light emitting module 2 are connected in parallel. The input end A of the first light-emitting module 1 is respectively connected with the working terminal of the first toggle switch 3 and the working terminal of the second toggle switch 5.
The number of connecting ends for arranging COB light sources can be reduced, and the structure is simplified. The embodiment can also realize the switching use of the single-color temperature function and the multi-color temperature function of the COB light source, meet the actual requirements of users and improve the use experience of the users. The working principle of the present embodiment is the same as that of the second embodiment shown in fig. 3, and will not be described here again.
It should be noted that, in other embodiments, the input end a of the first light emitting module 1 may be further connected to a common terminal of a fourth toggle switch, where the working terminal of the fourth toggle switch is connected to the positive electrode of the dimming driving power source 4 and the negative electrode of the dimming driving power source 4 respectively, so that the switching of the single color temperature or multi-color temperature functions of the COB light source can be achieved, the actual requirement of the user is met, and the use experience of the user is improved.
As shown in fig. 7, fig. 7 is a schematic structural view showing a third embodiment of a multi-stage adjustable COB light source of the present utility model, which is different from the second embodiment shown in fig. 5 in that the wiring area 8 has the terminal H deleted, and the structure of the wiring area 8 is simplified. The input end of the first light-emitting module is respectively connected with the working terminal of the first toggle switch and the working terminal of the second toggle switch through the wiring terminal A so as to realize that the input end of the first light-emitting module is electrically connected with the dimming driving power supply.
It should be noted that the toggle switches of the present utility model are all multi-gear toggle switches.
The foregoing disclosure is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the claims herein, as equivalent changes may be made in the claims herein without departing from the scope of the utility model.
Claims (8)
1. The multi-gear adjustable COB light source is characterized by comprising a substrate and a light-emitting area arranged on the substrate, wherein the light-emitting area comprises two groups of first light-emitting modules and second light-emitting modules with different color temperatures, and the output end of the first light-emitting module is connected with the input end of the second light-emitting module;
the first light-emitting module comprises a plurality of first light source groups connected in series, the second light-emitting module comprises a plurality of second light source groups connected in series, and the first light source groups and the second light source groups are arranged in one-to-one correspondence;
the input end of the first light source group is used for being connected with the working terminals of the first toggle switch in a one-to-one correspondence mode, the public terminal of the first toggle switch is connected with the positive electrode of the dimming driving power supply, the output end of the second light source group is used for being connected with the working terminals of the second toggle switch in a one-to-one correspondence mode, and the public terminal of the second toggle switch is connected with the negative electrode of the dimming driving power supply.
2. The COB light source of claim 1 wherein the output of the first light module is connected to the working terminal of the first toggle switch and the working terminal of the second toggle switch, respectively;
or the output end of the first light-emitting module is connected with the common terminal of the third toggle switch, and the working terminal of the third toggle switch is respectively connected with the positive electrode of the dimming driving power supply and the negative electrode of the dimming driving power supply.
3. The COB light source of claim 2 wherein the input of the first light module is connected to the output of the second light module, the input of the first light module being connected to the working terminal of the first toggle switch and the working terminal of the second toggle switch, respectively;
or the input end of the first light-emitting module is used for being connected with the common terminal of the fourth toggle switch, and the working terminal of the fourth toggle switch is respectively connected with the positive electrode of the dimming driving power supply and the negative electrode of the dimming driving power supply.
4. The COB light source of claim 1, 2 or 3, wherein a wiring area is further provided on the substrate, the wiring areas are respectively located at two sides of the light emitting area, the wiring area includes a plurality of terminals, and the first light emitting module and the second light emitting module are respectively connected with the corresponding working terminals through the terminals.
5. The COB light source of claim 1, wherein the first light-emitting module is a high-color-temperature light-emitting module and the second light-emitting module is a low-color-temperature light-emitting module;
or the first light-emitting module is a low-color-temperature light-emitting module, and the second light-emitting module is a high-color-temperature light-emitting module.
6. The COB light source of claim 5, wherein the first light source bank of the high-color-temperature light module includes a high-color-temperature light source bank and a resistor connected in parallel, the high-color-temperature light source bank includes at least one high-color-temperature LED chip, and the second light source bank of the low-color-temperature light module includes at least one low-color-temperature LED chip.
7. The COB light source of claim 4, wherein the terminal is a pad terminal or a quick connect terminal.
8. The COB light source of claim 1, further comprising an encapsulation layer that is configured to cover the light emitting region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320319221.XU CN220273908U (en) | 2023-02-23 | 2023-02-23 | Multi-gear adjustable COB light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320319221.XU CN220273908U (en) | 2023-02-23 | 2023-02-23 | Multi-gear adjustable COB light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220273908U true CN220273908U (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320319221.XU Active CN220273908U (en) | 2023-02-23 | 2023-02-23 | Multi-gear adjustable COB light source |
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| Country | Link |
|---|---|
| CN (1) | CN220273908U (en) |
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- 2023-02-23 CN CN202320319221.XU patent/CN220273908U/en active Active
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