CN209511674U - A kind of LED light bar - Google Patents
A kind of LED light bar Download PDFInfo
- Publication number
- CN209511674U CN209511674U CN201920363283.4U CN201920363283U CN209511674U CN 209511674 U CN209511674 U CN 209511674U CN 201920363283 U CN201920363283 U CN 201920363283U CN 209511674 U CN209511674 U CN 209511674U
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- cabling
- cathode
- circuit board
- power supply
- led light
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Abstract
The utility model discloses a kind of LED light bars, it include: circuit board, the circuit board is equipped with positive cabling and cathode cabling, the anode cabling is parallel with the cathode cabling, the front end of the circuit board is equipped with power supply positive input, the tail end of the circuit board is equipped with power supply negative input terminal, the power supply positive input and the power supply negative input terminal are connect with the positive cabling and the cathode cabling respectively, are electrically connected with several LED electric units between the anode cabling and the cathode cabling.The utility model is respectively connected to the anode input of power supply by the head and the tail both ends in lamp bar and cathode inputs, and solves the linear voltage drop due to electrical current carriers, keeps lamp bar head and the tail brightness inconsistent, generate heat inconsistent, cause the light decay of lamp bar and service life inconsistent problem.
Description
Technical field
The utility model relates to LED technology fields, more particularly, to a kind of LED light bar.
Background technique
In LED illumination industry, LED light bar is more and more common to be used on a large scale as Linear lighting illuminating source.LED light
Item is generally strip, and length meter is differed from several centimeters to tens, and electrical vector can be flexible circuit board or hard circuit
Plate.Generally termination power when user installation, the then luminous work of whole product.
In existing LED conventional circuit design, be difficult the Railway Project avoided: 1. due to electrical current carriers linear voltage
Drop, it is inconsistent that product will appear head and the tail brightness, brighter closer to power end；2. since all electric currents are all defeated by power end
Enter, so the carrying object fever close to power end is far longer than distal end, to cause the light decay of whole product and service life inconsistent.
Utility model content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to provide a kind of uniform, uniform LED light bar of fever that shines.
The technical scheme adopted by the invention is that:
A kind of LED light bar, comprising: circuit board, the circuit board is equipped with positive cabling and cathode cabling, the anode are walked
Line is parallel with the cathode cabling, and the front end of the circuit board is equipped with power supply positive input, and the tail end of the circuit board is equipped with
Power supply negative input terminal, the power supply positive input and the power supply negative input terminal respectively with the positive cabling and described
The connection of cathode cabling, is electrically connected with several LED electric units between the anode cabling and the cathode cabling.
Further, the LED electric unit includes LED light string, and the LED light string is connected to the positive cabling and described
Between cathode cabling.
Further, the LED electric unit includes constant flow module,
The anode cabling and the cathode cabling are connected by the constant flow module and the positive and negative anodes of the LED light string respectively
It connects.
Further, the LED light string includes 6 LED lamp beads.Further, the circuit board is aluminum substrate.A kind of LED light
Item, comprising: circuit board, the circuit board are equipped with positive cabling, intermediate traces and cathode cabling, the anode cabling and described
Intermediate traces are parallel with the cathode cabling, and it is electrical to be electrically connected with several LED between the anode cabling and the intermediate traces
Unit, the front end of the circuit board are equipped with power supply positive input and power supply negative input terminal, the power supply positive input with
The anode cabling is connected in the front position of the circuit board, one end of the power supply negative input terminal and the cathode cabling
Connection, the other end of the cathode cabling are connected with the intermediate traces 3 in the end-position of the circuit board.
The beneficial effects of the utility model are:
The utility model is respectively connected to the anode input of power supply by the head and the tail both ends in lamp bar and cathode inputs, and solves
Since the linear voltage of electrical current carriers drops, keeps lamp bar head and the tail brightness inconsistent, generate heat inconsistent, cause light decay and the service life of lamp bar
Inconsistent problem.
Detailed description of the invention
Fig. 1 is the circuit connection diagram of embodiment 1 in the utility model；
Fig. 2 is the circuit connection diagram of embodiment 2 in the utility model.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
With the increase of lamp bar length, since carrying object itself is there are voltage drop caused by impedance, the electricity between positive and negative anodes
Pressure can be smaller and smaller, that is, the voltage loaded on each electric unit can become smaller with the increase of distance, to cause bright
Spend difference.
Embodiment 1
With reference to Fig. 1, it illustrates a kind of LED light bars, comprising: circuit board, the circuit board are equipped with 1 He of positive cabling
Cathode cabling 2, positive cabling 1 is parallel with cathode cabling 2, and the front end of the circuit board is equipped with power supply positive input 3, the electricity
The tail end of road plate is equipped with power supply negative input terminal 4, the power supply positive input 3 and the power supply negative input terminal 4 respectively with
The anode cabling 1 is connected with 2 cabling of cathode, is electrically connected between the anode cabling and the cathode cabling several
LED electric unit 5.
In the present embodiment, circuit board can be flexible circuit board or hard circuit board, such as FPC, aluminum substrate, FR4 plate.
LED electric unit 5 includes LED light string, and LED light string is connected between the positive cabling 1 and the cathode cabling 2, preferably
LED light string includes 6 LED lamp beads, and the quantity of lamp bead is determined according to input voltage.
If the resistance per unit length value of circuit board carrying object is R1, the equivalent resistance of every section LED electric unit 5 is R2, defeated
Entering voltage is U1 (voltage between power supply positive input 3 and power supply negative input terminal), the voltage of every section LED electric unit 5
For Un, the electric current that every section LED electric unit 5 passes through is In, and it is N that lamp bar, which amounts to electric unit number,.
In=Un/R2, Un=Uo-R1*Sum (Io, I1 ... In)/2-R1*Sum (In, In+1 ... IN)/2=Uo-R1*Sum
(Io, I1 ... IN) In > 0, I (n+1)=In and Pn=Un*In, P (n+1)=Pn.
Thus, the operating current of each LED electric unit 5 in the light bar of the circuit design is equal and power consumption phase
Deng to realize uniform in the brightness uniformity of whole light bar and fever.
It is further used as preferred embodiment, the LED electric unit 5 includes constant flow module, anode 1 He of cabling
The cathode cabling 2 is connect by the constant flow module with the positive and negative anodes of the LED light string respectively.Every section LED electric unit 5 adds
Enter one group of constant flow module, which can ensure the electric current base of the LED electric unit 5 in certain input voltage range
This is constant, so as to improve the brightness uniformity of whole lamp bar.
Embodiment 2
With reference to Fig. 2, it illustrates a kind of LED light bars, comprising: circuit board, the circuit board be equipped with positive cabling 1,
Intermediate traces 3 and cathode cabling 2, the anode cabling 1 and the intermediate traces 3 are parallel with the cathode cabling 2, the anode
Several LED electric units 6 are electrically connected between cabling 1 and the intermediate traces 3, the front end of the circuit board is equipped with positive pole
The front position of input terminal 4 and power supply negative input terminal 5, the power supply positive input 4 and the positive cabling 1 in circuit board
Connection, the power supply negative input terminal 5 connects with one end of the cathode cabling 2, the other end of the cathode cabling 2 and described
Intermediate traces 3 are connected in the tail end of circuit board.
Power supply gives the power supply of entire LED light bar by power supply positive input 4 and power supply negative input terminal 5, power cathode or
Person's cathode circuit will not directly with the direct connection of all LED electric units 6 in lamp bar, power cathode first directly connection to tail
End.By embodiment 1 it is found that brightness uniformity that the design may be implemented in whole light bar and fever uniformly, in addition board design is still
So for can according to 6 severing of LED electric unit, only need to after severing by independent positive cabling 1 or cathode cabling 2 in end
It is connected with corresponding electric wire.
Similarly, it is also possible to positive cabling 1 and is connected with intermediate traces 3 in the tail end of circuit board, cathode cabling 2 is in circuit board
Front end, therefore not to repeat here.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (6)
1. a kind of LED light bar characterized by comprising circuit board, the circuit board are equipped with positive cabling and cathode cabling,
The anode cabling is parallel with the cathode cabling, and the front end of the circuit board is equipped with power supply positive input, the circuit board
Tail end be equipped with power supply negative input terminal, the power supply positive input and the power supply negative input terminal respectively with the anode
Cabling is connected with the cathode cabling, is electrically connected with several LED electric units between the anode cabling and the cathode cabling.
2. LED light bar according to claim 1, which is characterized in that the LED electric unit includes LED light string, described
LED light string is connected between the positive cabling and the cathode cabling.
3. LED light bar according to claim 2, which is characterized in that the LED electric unit includes constant flow module, described
Positive cabling and the cathode cabling are connect by the constant flow module with the positive and negative anodes of the LED light string respectively.
4. LED light bar according to claim 2, which is characterized in that the LED light string includes 6 LED lamp beads.
5. LED light bar according to any one of claims 1 to 4, which is characterized in that the circuit board is aluminum substrate.
6. a kind of LED light bar characterized by comprising circuit board, the circuit board be equipped with positive cabling, intermediate traces and
Cathode cabling, the anode cabling and the intermediate traces are parallel with the cathode cabling, the anode cabling and the centre
Several LED electric units are electrically connected between cabling, the front end of the circuit board is equipped with power supply positive input and power cathode
Input terminal, the power supply positive input are connect with the positive cabling in the front position of the circuit board, and the power supply is negative
Pole input terminal is connected with one end of the cathode cabling, and the other end and the intermediate traces 3 of the cathode cabling are in the electricity
The end-position of road plate connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363283.4U CN209511674U (en) | 2019-03-21 | 2019-03-21 | A kind of LED light bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363283.4U CN209511674U (en) | 2019-03-21 | 2019-03-21 | A kind of LED light bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209511674U true CN209511674U (en) | 2019-10-18 |
Family
ID=68187592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920363283.4U Active CN209511674U (en) | 2019-03-21 | 2019-03-21 | A kind of LED light bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209511674U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112997722A (en) * | 2021-03-29 | 2021-06-22 | 深圳市美志光电技术有限公司 | Plant growing lamp |
| CN113905484A (en) * | 2021-10-12 | 2022-01-07 | 恒亦明（重庆）科技有限公司 | Low-voltage LED lamp strip |
| WO2024068389A1 (en) | 2022-09-30 | 2024-04-04 | Signify Holding B.V. | A led module for providing uniform light |
-
2019
- 2019-03-21 CN CN201920363283.4U patent/CN209511674U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112997722A (en) * | 2021-03-29 | 2021-06-22 | 深圳市美志光电技术有限公司 | Plant growing lamp |
| CN113905484A (en) * | 2021-10-12 | 2022-01-07 | 恒亦明（重庆）科技有限公司 | Low-voltage LED lamp strip |
| WO2024068389A1 (en) | 2022-09-30 | 2024-04-04 | Signify Holding B.V. | A led module for providing uniform light |
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