CN203801100U - LED lighting circuit and LED lamp - Google Patents
LED lighting circuit and LED lamp Download PDFInfo
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- CN203801100U CN203801100U CN201420049718.5U CN201420049718U CN203801100U CN 203801100 U CN203801100 U CN 203801100U CN 201420049718 U CN201420049718 U CN 201420049718U CN 203801100 U CN203801100 U CN 203801100U
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- load
- lighting circuit
- led lighting
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- light
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Abstract
The utility model belongs to the technical field of lighting, and particularly relates to an LED lighting circuit and an LED lamp. The LED lighting circuit provided by the utility model comprises a power supply module, a first load, a second load and a heat dissipation module. The power supply module is connected with the first load and the second load, and the second load is connected with the first load and the heat dissipation module. Working voltage of the heat dissipation module is provided by a node between the first load and the second load, and the size of the working voltage is determined by the impedance ratio of the first load to the second load. Therefore, the heat dissipation module of the LED lighting circuit does not need to be powered independently, and a relatively simple-structured power supply module can be adopted, thus improving the stability of the power supply module. When the LED lighting circuit is applied to the LED lamp, the overall price of the LED lamp can be reduced, the size of the LED lamp can be reduced, and promotion of the LED lamp in market is facilitated.
Description
Technical field
The utility model belongs to lighting technical field, particularly a kind of LED lighting circuit and LED light fixture.
Background technology
In the larger LED light fixture of some power, the radiating module for dispelling the heat is generally installed, avoid LED load overheated and affect its useful life.
But, the radiating module of existing LED light fixture needs power module that suitable operating voltage is provided, and even adopts independent power module to drive it normally to work, and this makes the power circuit of LED light fixture become more complicated, its stability is also lower, easily breaks down.And complicated power circuit also causes the price of LED light fixture high, volume is large, affects it and further promotes.
In sum, existing LED light fixture exists radiating module to need the problem of power supply separately.
Utility model content
The purpose of this utility model is to provide a kind of LED lighting circuit, is intended to solve existing LED light fixture and exists radiating module to need the problem of power supply separately.
A kind of LED lighting circuit, comprises power module, the power end incoming transport civil power of described power module, and by output output direct current; It is characterized in that:
Described LED lighting circuit also comprises the first load, the second load and radiating module;
The input of described the first load connects the output of described power module, the input of described the second load and the input of described radiating module are connected to the output of described the first load altogether, and the output of described the second load and the output of described radiating module are connected to the input of described power module altogether.
Another object of the present utility model is also to provide a kind of LED light fixture, comprises housing, also comprises above-mentioned LED lighting circuit.
LED lighting circuit provided by the utility model comprises power module, the first load, the second load and radiating module; Wherein, power module connects the first load and the second load, and the second load connects the first load and radiating module.The operating voltage of radiating module is provided by the node between the first load and the second load, and its voltage swing is determined by the impedance ratio of the first load and the second load.Therefore, this LED lighting circuit, without powering separately for radiating module, can adopt the relatively simple power module of structure, thereby has improved the stability of power module.Be applied to, in LED light fixture, both can reduce the overall price of LED light fixture, can also reduce the volume of LED light fixture, be conducive to marketing.
Brief description of the drawings
Fig. 1 is the modular structure figure of the LED lighting circuit that provides of the utility model one embodiment;
Fig. 2 is the exemplary circuit structure chart of the LED lighting circuit that provides of the utility model one embodiment;
Fig. 3 is the exemplary circuit structure chart of the LED lighting circuit that provides of another embodiment of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
LED lighting circuit provided by the utility model comprises power module, the first load, the second load and radiating module; Wherein, power module connects the first load and the second load, and the second load connects the first load and radiating module.Having solved existing LED light fixture exists radiating module to need the problem of power supply separately.
Fig. 1 shows the modular structure of the LED lighting circuit that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant to the utility model embodiment, and details are as follows:
LED lighting circuit provided by the utility model comprises power module 10, the power end incoming transport civil power of power module 10, and by output output direct current.
In the utility model embodiment, power module 10 can be the LED drive circuit of any type, as Switching Power Supply, constant-current supply etc.
Further, LED lighting circuit also comprises the first load 20, the second load 30 and radiating module 40.
In the utility model embodiment, the first load 20 and the second load 30 are LED module, and its direct current that utilizes power module 10 to export is luminous.Radiating module 40 can carry out radiating treatment for LED lighting circuit.
Concrete, the input of the first load 20 connects the output of power module 10, the input of the input of the second load 30 and radiating module 40 is connected to the output of the first load 20 altogether, and the output of the output of the second load 30 and radiating module 40 is connected to the input of power module 10 altogether.
In the utility model embodiment, the operating voltage of radiating module 40 is provided by the node between the first load 20 and the second load 30, and its voltage swing is determined by the impedance ratio of the first load 20 and the second load 30.Therefore, this LED lighting circuit, without being that radiating module 40 is powered separately, can adopt the relatively simple power module 10 of structure, improves the stability of power module 10.
As the utility model one embodiment, as shown in Figure 2, radiating module 40 can be air-cooled fan M1;
The input of air-cooled fan M1 and output are respectively input and the outputs of radiating module 40.
As the utility model one embodiment, as shown in Figure 2, the first load 20 can be that anode and the negative electrode of the first LED 1, the first LED 1 is respectively input and the output of the first load 20.
As the utility model one embodiment, as shown in Figure 2, the second load 30 can be that anode and the negative electrode of the second LED 2, the second LEDs 2 is respectively input and the output of the second load 30.
In the present embodiment, the first LED 1 and the second LED 2 carry out dividing potential drop to the direct current of power module output, and air-cooled fan M1 obtains operating voltage by its intermediate node.
As another embodiment of the utility model, as shown in Figure 3, the first load 20 can also comprise one or more the 3rd LEDs 3, one or more the 3rd LEDs 3 are started by the negative electrode of the first LED 1, adopt the mode of anodic bonding negative electrode to be connected in series successively, the negative electrode that is positioned at the 3rd LED 3 of end is the output of the first load 20.
As another embodiment of the utility model, as shown in Figure 3, the second load 30 can also comprise one or more the 4th LEDs 4, one or more the 4th LEDs 4 are started by the negative electrode of the second LED 2, adopt the mode of anodic bonding negative electrode to be connected in series successively, the negative electrode that is positioned at the 4th LED 4 of end is the output of the second load 30.
In the present embodiment, user can, by changing the quantity of the first load 20 and the second load 30 inner light-emitting diodes of installing, regulate the impedance ratio of the first load 20 and the second load 30, thereby make radiating module 40 can obtain suitable operating voltage.
As another embodiment of the utility model, as shown in Figure 3, radiating module 40 can also be thermoelectric refrigerating unit M2;
The input of thermoelectric refrigerating unit M2 and output are respectively input and the outputs of radiating module 40.
As another embodiment of the utility model, as shown in Figure 3, LED lighting circuit can also comprise voltage-stabiliser tube D1.
Concrete, the negative electrode of voltage-stabiliser tube D1 and anode are connected respectively input and the output of radiating module 40.
Another object of the present utility model is also to provide a kind of LED light fixture, comprises housing, also comprises above-mentioned LED lighting circuit.
In the utility model embodiment, due to above-mentioned LED lighting circuit is applied in this LED light fixture, both reduced the overall price of LED light fixture, reduce again the volume of LED light fixture, be conducive to marketing.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (9)
1. a LED lighting circuit, comprises power module, the power end incoming transport civil power of described power module, and by output output direct current; It is characterized in that:
Described LED lighting circuit also comprises the first load, the second load and radiating module;
The input of described the first load connects the output of described power module, the input of described the second load and the input of described radiating module are connected to the output of described the first load altogether, and the output of described the second load and the output of described radiating module are connected to the input of described power module altogether.
2. LED lighting circuit as claimed in claim 1, is characterized in that, described the first load is the first light-emitting diode, and the anode of described the first light-emitting diode and negative electrode are respectively input and the outputs of described the first load.
3. LED lighting circuit as claimed in claim 1, is characterized in that, described the second load is the second light-emitting diode, and the anode of described the second light-emitting diode and negative electrode are respectively input and the outputs of described the second load.
4. LED lighting circuit as claimed in claim 2, it is characterized in that, described the first load also comprises one or more the 3rd light-emitting diodes, described one or more the 3rd light-emitting diode is started by the negative electrode of described the first light-emitting diode, adopt the mode of anodic bonding negative electrode to be connected in series successively, the negative electrode that is positioned at the 3rd light-emitting diode of end is the output of described the first load.
5. LED lighting circuit as claimed in claim 3, it is characterized in that, described the second load can also comprise one or more the 4th light-emitting diodes, described one or more the 4th light-emitting diode is started by the negative electrode of described the second light-emitting diode, adopt the mode of anodic bonding negative electrode to be connected in series successively, the negative electrode that is positioned at the 4th light-emitting diode of end is the output of described the second load.
6. LED lighting circuit as claimed in claim 1, is characterized in that, described LED lighting circuit also comprises voltage-stabiliser tube;
The negative electrode of described voltage-stabiliser tube and anode are connected respectively input and the output of described radiating module.
7. LED lighting circuit as claimed in claim 1, is characterized in that, described radiating module is air-cooled fan;
The input of described air-cooled fan and output are respectively input and the outputs of described radiating module.
8. LED lighting circuit as claimed in claim 1, is characterized in that, described radiating module is thermoelectric refrigerating unit;
The input of described thermoelectric refrigerating unit and output are respectively input and the outputs of described radiating module.
9. a LED light fixture, comprises housing, it is characterized in that, described LED light fixture also comprises the LED lighting circuit as described in claim 1 to 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049718.5U CN203801100U (en) | 2014-01-24 | 2014-01-24 | LED lighting circuit and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049718.5U CN203801100U (en) | 2014-01-24 | 2014-01-24 | LED lighting circuit and LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203801100U true CN203801100U (en) | 2014-08-27 |
Family
ID=51383283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420049718.5U Expired - Fee Related CN203801100U (en) | 2014-01-24 | 2014-01-24 | LED lighting circuit and LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203801100U (en) |
-
2014
- 2014-01-24 CN CN201420049718.5U patent/CN203801100U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |