CN204164782U - Efficient LED light bar - Google Patents
Efficient LED light bar Download PDFInfo
- Publication number
- CN204164782U CN204164782U CN201420269609.4U CN201420269609U CN204164782U CN 204164782 U CN204164782 U CN 204164782U CN 201420269609 U CN201420269609 U CN 201420269609U CN 204164782 U CN204164782 U CN 204164782U
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- Prior art keywords
- led
- illumination unit
- light bar
- led illumination
- voltage source
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- 238000005286 illumination Methods 0.000 claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a kind of efficient LED light bar, comprise constant voltage source, be parallel to some groups of LED illumination unit of described constant voltage source, described LED illumination unit is composed in series by least two LED chip, and the rated voltage of described LED illumination unit is equal with the output voltage of described constant voltage source.The efficient LED light bar that the utility model provides, without the need to peripheral components, technique is simple, and application is stable.
Description
Technical field
The utility model relates to a kind of lighting apparatus, particularly relates to a kind of LED.
Background technology
The structure of current LED is commonly a LED or multiple LED and a current-limiting resistance one group of LED illumination unit in series, and many group lighting units are in parallel; Constant voltage source driving LED light bar is thrown light on.Because LED has, energy consumption is lower, light efficiency good, mounting design is flexible, is widely applied to various occasion.
Current-limiting resistance in LED is for the protection of LED; make the pressure drop of LED and flow through electric current to remain in working range; but it is heat energy that the current-limiting resistance sealed in circuit also can consume electric energy conversion while current limliting, causes energy loss, reduce the light efficiency of LED.
Therefore, need a kind of LED of low energy consumption badly, improve LED light efficiency.
Utility model content
The purpose of this utility model is to provide a kind of efficient LED light bar, to reduce the energy consumption of LED, improves light efficiency.
To achieve these goals, the utility model discloses a kind of efficient LED light bar, comprise constant voltage source, be parallel to some groups of LED illumination unit of described constant voltage source, described LED illumination unit is composed in series by least two LED chip, and the rated voltage of described LED illumination unit is equal with the output voltage of described constant voltage source.
According to the efficient LED light bar that the utility model provides, remove the current-limiting resistance in LED illumination unit series circuit, to avoid current-limiting resistance to consume electric energy, improve the electro-optical efficiency of LED; For a LED chip, other LED chip of series connection with it carry out current limliting to this chip, when removing current-limiting resistance, the pressure drop of LED chip can be made equally and flow through electric current to remain on working range, each group of LED illumination unit can normally be worked.The efficient LED light bar that the utility model provides, without the need to peripheral components, structure is simple, light efficiency is high.
Preferably, the rated current of at least two LED chip in described LED illumination unit series arm is equal; Be series at the electric current that each LED chip in a LED illumination unit flows through all equal, and it is equal with the rated current of each LED chip in LED illumination unit to flow through electric current, improves the stability of the utility model efficient LED light bar further.
Preferably, described LED illumination unit also comprises controller, and described controller controls LED illumination unit work described in some groups.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing LED.
Fig. 2 is the structural representation of the utility model efficient LED light bar.
Detailed description of the invention
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
Existing LED as shown in Figure 1, comprises constant voltage source 100, controller 200, is parallel to the some groups of LED illumination unit 300 of constant voltage source 100.Wherein, LED illumination unit 300 comprises the LED chip 310 and a current-limiting resistance 320 that are in series.Current-limiting resistance 320 carries out current limliting to the electric current flowing through LED illumination unit 300, but it is heat energy that the current-limiting resistance 320 sealed in circuit also can consume electric energy conversion while current limliting, causes energy loss, reduces the light efficiency of LED.
To this, the efficient LED light bar that the utility model as shown in Figure 2 provides, comprises constant voltage source 100 ', controller 200 ', is parallel to some groups of LED illumination unit 300 ' of constant voltage source 100 '.Controller 200 ' controls some groups of LED illumination unit 300 ' and works.With existing LED unlike, the LED that the utility model provides, LED illumination unit 300 ' is composed in series by two LED chip 310 ', and the rated voltage sum of two LED chip 310 ' of series connection is equal with the output voltage of constant voltage source 100 ', that is, the rated voltage of LED illumination unit 300 ' is equal with the output voltage of constant voltage source 100 '.Compared with prior art, this efficient LED light bar, removes the current-limiting resistance 320 in LED illumination unit 300 ' series circuit, to avoid current-limiting resistance 320 to consume electric energy, improves the electro-optical efficiency of LED; For a LED chip 310 ', other LED chip 310 ' of series connection with it carry out current limliting to this LED chip 310 ', when removing current-limiting resistance 320, the pressure drop of LED chip 310 ' can be made equally and flow through electric current to remain on working range, each group of LED illumination unit 300 ' can normally be worked.The efficient LED light bar that the utility model provides, without the need to peripheral components, structure is simple, light efficiency is high.
Preferably, in any LED illumination unit 300 ', the rated current of two LED chip 310 ' of series connection is equal.Be series at the electric current that each LED chip 310 ' in a LED illumination unit 300 ' flows through all equal, and it is equal with the rated current of each LED chip 310 ' in LED illumination unit 300 ' to flow through electric current, improve the stability of the utility model efficient LED light bar further.
In other embodiments being different from the present embodiment, LED illumination unit 300 ' can also by three, four, or more LED chip 310 ' be composed in series, the rated voltage sum of multiple LED chip 310 ' that only need be in series is equal with the output voltage of constant voltage source 100 ', can realize the normal work of this efficient LED light bar equally.
The efficient LED light bar that the utility model as shown in Figure 2 provides, is only the simplest circuit connection structure of one.In other embodiments being different from the present embodiment, other outputs of the LED illumination unit 300 ' access controller 200 ' that can also be in parallel by some other groups, realize flicker, horse race lamp light efficiency to make efficient LED light bar.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (3)
1. an efficient LED light bar, comprise constant voltage source, be parallel to some groups of LED illumination unit of described constant voltage source, it is characterized in that: described LED illumination unit is composed in series by least two LED chip, and the rated voltage of described LED illumination unit is equal with the output voltage of described constant voltage source.
2. efficient LED light bar as claimed in claim 1, is characterized in that: the rated current of at least two LED chip in described LED illumination unit series arm is equal.
3. efficient LED light bar as claimed in claim 1, it is characterized in that: described LED illumination unit also comprises controller, described controller controls LED illumination unit work described in some groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269609.4U CN204164782U (en) | 2014-05-23 | 2014-05-23 | Efficient LED light bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269609.4U CN204164782U (en) | 2014-05-23 | 2014-05-23 | Efficient LED light bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164782U true CN204164782U (en) | 2015-02-18 |
Family
ID=52538468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269609.4U Expired - Fee Related CN204164782U (en) | 2014-05-23 | 2014-05-23 | Efficient LED light bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204164782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982487A (en) * | 2019-04-23 | 2019-07-05 | 珠海其美光电科技有限公司 | A kind of LED line shape lamp of isometric impedance |
-
2014
- 2014-05-23 CN CN201420269609.4U patent/CN204164782U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982487A (en) * | 2019-04-23 | 2019-07-05 | 珠海其美光电科技有限公司 | A kind of LED line shape lamp of isometric impedance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200529 Address after: 528400 one of the third floor, building 1, No. 11, Chengnan Second Road, South District, Zhongshan City, Guangdong Province (application for residence) Patentee after: Guangdong Micro Technology Co.,Ltd. Address before: 518000 B building, Three Gorges Industrial Park, Shilong village, Shiyan district, Shiyan City, Guangdong, Shenzhen (five floor), Baoan District, China Patentee before: GEN LIGHTING ELECTRONIC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 |