CN210687857U - Lamp strip with consistent brightness - Google Patents
Lamp strip with consistent brightness Download PDFInfo
- Publication number
- CN210687857U CN210687857U CN201922222679.XU CN201922222679U CN210687857U CN 210687857 U CN210687857 U CN 210687857U CN 201922222679 U CN201922222679 U CN 201922222679U CN 210687857 U CN210687857 U CN 210687857U
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- Prior art keywords
- led light
- feedback module
- triode
- emitting
- electrically connected
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- Expired - Fee Related
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- 238000003466 welding Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 8
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a lamp area that luminance keeps unanimity, including feedback module, lamp area body and a plurality of groups parallel connection's on the lamp area body LED light-emitting component of setting, lamp area body one end is provided with power input end and earthing terminal, LED light-emitting component one end and power input end electric connection, the one end electric connection of the other end and feedback module, the other end and the earthing terminal electric connection of feedback module, feedback module is used for carrying out the feedback effect when the electric current of the LED light-emitting component of flowing through when the current-change hour and is used for making the increase of the electric current of flowing through the LED light-emitting component, and then makes the luminance in lamp area keep unanimous, compares in traditional adoption constant current chip and carries out the constant current and handle, and this design adopts the mode of current feedback to carry out the replenishment to the electric.
Description
Technical Field
The utility model relates to a lamp area technical field, especially a lamp area that luminance keeps unanimity.
Background
Along with the improvement of people's life, LED lamp area has LED lamp area of interspersing and decorative effect and more popularizes in people's life, because the length in lamp area is generally longer, after letting in the power, the voltage that LED lamp pearl that is farther away from the power obtains is littleer to the electric current of flowing through LED lamp pearl is just littleer, LED lamp pearl then is darker backward more, consequently in order to keep LED lamp area fore-and-aft unanimous luminance among the prior art, can add constant current chip on the lamp area and adjust usually, but just so improved manufacturing cost, the profit of enterprise has been reduced.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a luminance keeps unanimous lamp area.
In order to solve the above problems, the utility model adopts the following technical proposal.
A lamp strip with the consistent brightness comprises a feedback module, a lamp strip body and a plurality of groups of LED light-emitting components which are arranged on the lamp strip body and connected in parallel, wherein one end of the lamp strip body is provided with a power input end and a grounding end, one end of each LED light-emitting component is electrically connected with the power input end, the other end of each LED light-emitting component is electrically connected with one end of the feedback module, the other end of each feedback module is electrically connected with the grounding end, and the feedback module is used for performing feedback action when the current flowing through the LED light-emitting components is reduced so as to increase the current flowing through the LED light-emitting components.
As a further improvement of the present invention, the LED light emitting assembly includes an LED light emitting unit and an input resistor connected in parallel to both ends of the LED light emitting unit.
As a further improvement, the feedback module includes first triode and second triode, the base level of first triode respectively with input resistance's one end, the collecting electrode electric connection of second triode, the collecting electrode of first triode and the one end electric connection of LED luminescence unit, the other end of input resistance, the other end of LED luminescence unit all with power input end electric connection, the projecting pole of first triode and the base level electric connection of second triode, the projecting pole and the earthing terminal electric connection of second triode.
As a further improvement of the present invention, the LED light emitting assembly and the feedback module are spaced apart from each other and are disposed on the LED strip body.
As a further improvement, the LED lamp is provided with a cutting mark between the LED light-emitting assemblies, and both sides of the cutting mark are provided with welding points.
The beneficial effects of the utility model
Compared with the prior art, the utility model has the advantages of:
the utility model discloses compare in traditional adoption constant current chip and carry out the constant current and handle, adopt the mode of current feedback to carry out the replenishment to the electric current, and then improve LED light-emitting component's luminance, luminance is unanimous around making the lamp area.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the circuit principle of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 2, a light strip with consistent brightness includes a feedback module 1, a light strip body 2, and a plurality of sets of LED light emitting devices 3 arranged on the light strip body 2 and connected in parallel, one end of the lamp strip body 2 is provided with a power input end 4 and a grounding end, one end of the LED luminous component 3 is electrically connected with the power input end 4, the other end is electrically connected with one end of the feedback module 1, the other end of the feedback module 1 is electrically connected with the grounding end, the feedback module 1 is used for performing feedback action when the current flowing through the LED light emitting component 3 is small so as to increase the current flowing through the LED light emitting component 3, and then the luminance of lamp area keeps unanimous, compares in traditional adoption constant current chip and carries out the constant current and handle, and this design adopts the mode of current feedback to carry out the replenishment to the current, and then improves the luminance of LED light-emitting component 3, makes the front and back luminance of lamp area unanimous.
Further, the LED lighting assembly 3 includes an LED lighting unit 31 and an input resistor R1 connected in parallel to two ends of the LED lighting unit 31, the input resistor R1 is configured to convert the voltage of the power input terminal 4 into a working current to supply power to the LED lighting unit 31, and the LED lighting unit 31 includes one LED lamp bead or at least two LED lamp beads connected in series with each other.
Further, the feedback module 1 includes a first triode Q1 and a second triode Q2, the base of the first triode Q1 is electrically connected with one end of the input resistor R1 and the collector of the second triode Q2, respectively, the collector of the first triode Q1 is electrically connected with one end of the LED light-emitting unit 31, the other end of the input resistor R1 and the other end of the LED light-emitting unit 31 are electrically connected with the power input terminal 4, the emitter of the first triode Q1 is electrically connected with the base of the second triode Q2, and the emitter of the second triode Q2 is electrically connected with the ground terminal.
The working principle of the feedback module 1 is as follows: assuming that the voltage U applied to the LED lighting assembly 3 is U, the voltage U obtained by the LED lighting assembly 3 gradually decreases as the light strip goes backward due to the consumption of a series of components on the light strip, so that the current passing through the input resistor R1 decreases, the current applied to the LED lighting unit 31 decreases, and the base voltage VB2 of the second transistor Q2 decreases, the base current IB2 of the second transistor Q2 decreases, and the collector current IC2 of the second transistor Q2 has a positive proportional relationship with the base, so that when the base current IB2 of the second transistor Q2 decreases, the collector current IC2 of the second transistor Q2 decreases, because the collector current IC2 of the second transistor Q2 shunts the base current IB1 of the first transistor Q1, and therefore when the collector current IC2 of the second transistor Q2 decreases, the base current IB1 of the first transistor Q1 increases, and the collector current IC1 of the first transistor Q1 increases, that is, the current passing through the LED lighting unit 31 increases again, thereby increasing the light emitting brightness of the LED lighting unit 31.
In order to avoid light overlapping between the LED light-emitting components 3 and cause local over-bright and dazzling, the LED light-emitting components 3 and the feedback module 1 are arranged on the LED lamp strip body 2 at intervals.
In order to facilitate the lamp strip to be cut and connected and improve the practicability of the lamp strip, a cutting mark 6 is arranged between the LED light-emitting components 3, and welding points 7 are arranged on two sides of the cutting mark 6.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (5)
1. A lamp strip with the consistent brightness is characterized by comprising a feedback module, a lamp strip body and a plurality of groups of LED light-emitting components which are arranged on the lamp strip body and connected in parallel, wherein one end of the lamp strip body is provided with a power input end and a grounding end, one end of each LED light-emitting component is electrically connected with the power input end, the other end of each LED light-emitting component is electrically connected with one end of the feedback module, the other end of each feedback module is electrically connected with the grounding end, and the feedback module is used for performing feedback action when the current flowing through the LED light-emitting components is reduced so as to increase the current flowing through the LED light-emitting components and further.
2. A light strip having a consistent brightness as claimed in claim 1, wherein:
the LED light-emitting component comprises an LED light-emitting unit and input resistors connected in parallel at two ends of the LED light-emitting unit.
3. A light strip having a consistent brightness as claimed in claim 2, wherein:
the feedback module comprises a first triode and a second triode, the base level of the first triode is respectively electrically connected with one end of the input resistor and the collector electrode of the second triode, the collector electrode of the first triode is electrically connected with one end of the LED light-emitting unit, the other end of the input resistor and the other end of the LED light-emitting unit are electrically connected with the power input end, the emitting electrode of the first triode is electrically connected with the base level of the second triode, and the emitting electrode of the second triode is electrically connected with the grounding end.
4. A light strip having a consistent brightness as claimed in claim 1, wherein:
the LED light-emitting component and the feedback module are arranged on the LED lamp strip body at intervals.
5. A light strip having a consistent brightness as claimed in claim 1, wherein:
a cutting mark is arranged between the LED light-emitting assemblies, and welding points are arranged on two sides of the cutting mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922222679.XU CN210687857U (en) | 2019-12-12 | 2019-12-12 | Lamp strip with consistent brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922222679.XU CN210687857U (en) | 2019-12-12 | 2019-12-12 | Lamp strip with consistent brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210687857U true CN210687857U (en) | 2020-06-05 |
Family
ID=70886476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922222679.XU Expired - Fee Related CN210687857U (en) | 2019-12-12 | 2019-12-12 | Lamp strip with consistent brightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210687857U (en) |
-
2019
- 2019-12-12 CN CN201922222679.XU patent/CN210687857U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 |