CN204254494U - A kind of LED lamp affixed to the ceiling - Google Patents
A kind of LED lamp affixed to the ceiling Download PDFInfo
- Publication number
- CN204254494U CN204254494U CN201420791592.9U CN201420791592U CN204254494U CN 204254494 U CN204254494 U CN 204254494U CN 201420791592 U CN201420791592 U CN 201420791592U CN 204254494 U CN204254494 U CN 204254494U
- Authority
- CN
- China
- Prior art keywords
- ceiling
- circuit board
- led lamp
- resistance
- lamp affixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of LED lamp affixed to the ceiling, comprise installation chassis on the ceiling and the lampshade be connected with chassis, lower surface, described chassis is provided with circuit board, and circuit board is provided with the LED light source be connected electrically, and described circuit board is connected with inching switch by wire.Compared with prior art, lamp affixed to the ceiling of the present utility model adopts LED light source technology to obtain better lighting environment condition, has that luminous efficiency is high, uniformity good, brightness continuously adjustabe, power consumption are low, long service life, and caloric value is low, environmental and durable, glow color can be selected as requested.
Description
Technical field
The utility model relates to lamp installation field, particularly a kind of LED lamp affixed to the ceiling.
Background technology
Light fixture has been one of requisite furniture during modern lives, and it not only has the function of illumination, has well the effect of decoration life staying idle at home.Light fixture of today is of a great variety, has shot-light, pendent lamp, lamp affixed to the ceiling, stand-by light etc.Wherein, its upper design of lamp affixed to the ceiling obtains comparatively smooth, can install near roof, because the area of its illumination is larger, and save space beautify roof, be applicable to lamp affixed to the ceiling and obtain light source and also have such as white bulb, fluorescent lamp, halogen tungsten lamp etc., therefore, lamp affixed to the ceiling most widely used, is widely used in market, household.
But current lamp affixed to the ceiling only has switch usually to control unlatching or the closedown of lamp affixed to the ceiling, cannot regulate by light as required.
Summary of the invention
The purpose of this utility model to provide a kind of LED lamp affixed to the ceiling, and structure is simple, can regulate lamplight brightness.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind of LED lamp affixed to the ceiling, comprise installation chassis on the ceiling and the lampshade be connected with chassis, lower surface, described chassis is provided with circuit board, and circuit board is provided with the LED light source be connected electrically, and described circuit board is connected with inching switch by wire.
As further preferred version of the present utility model, described LED light source adopts the LED lamp bead of 18 3535 SMD as light source, and LED lamp bead is divided into 3 groups of parallel connections on circuit boards, and often group arranges 6 series connection.
As further preferred version of the present utility model, described circuit board is provided with No. 3 drive circuits and 1 road regulating circuit, regulating circuit is made up of the first three terminal regulator LM317 and the first resistance, the input of the first three terminal regulator LM317 connects vehicle power, is parallel with the first resistance between output and adjustable side, adjustable side is connected with ground connection after slip variable resistance, and the adjustable side of slip variable resistance is fixedly connected with inching switch; Drive circuit is made up of the second three terminal regulator LM317 and the second resistance, the input of the second three terminal regulator LM317 is connected with the input of the first three terminal regulator LM317, output connect connect 6 LEDs light pearls, be parallel with the second resistance between output and adjustable side.
Compared with prior art, lamp affixed to the ceiling of the present utility model adopts LED light source technology to obtain better lighting environment condition, has that luminous efficiency is high, uniformity good, brightness continuously adjustabe, power consumption are low, long service life, and caloric value is low, environmental and durable, glow color can be selected as requested.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, is used for explaining the utility model in the illustrative examples of this utility model and explanation, but not as to restriction of the present utility model.
A kind of LED lamp affixed to the ceiling as shown in Figure 1, comprise installation chassis 1 on the ceiling and the lampshade 3 be connected with chassis 1, lower surface, chassis 1 is provided with circuit board 2, circuit board 2 is provided with the LED light source 4 be connected electrically, described circuit board 2 is connected with inching switch 5 by wire, and inching switch 5 is installed on the switch enclosure on wall, and LED light source 4 adopts the LED lamp bead of 18 3535 SMD as light source, LED lamp bead is divided into 3 groups of parallel connections on the circuit board 2, and often group arranges 6 series connection.
As shown in Figure 2, circuit board 2 is provided with No. 3 drive circuits and 1 road regulating circuit, regulating circuit is made up of the first three terminal regulator LM317 and the first resistance, the input of the first three terminal regulator LM317 connects vehicle power, is parallel with the first resistance between output and adjustable side, adjustable side is connected with ground connection after slip variable resistance, and the adjustable side of slip variable resistance is fixedly connected with inching switch 6; Regulating circuit utilizes the output voltage control characteristic of three terminal regulator LM317, and its output voltage Uo1 is: Uo1=1.25 × (1+Radj1/Ro1), and wherein Radj1 is resistance between LM317 and earth terminal, and Ro1 is resistance between output and adjustable side.Radj1 is designed to variable resistor and constant resistance is composed in series, and realizes the continuous regulatory function of brightness.Drive circuit is made up of the second three terminal regulator LM317 and the second resistance, the input of the second three terminal regulator LM317 is connected with the input of the first three terminal regulator LM317, output connect connect 6 LEDs light pearls, be parallel with the second resistance between output and adjustable side, drive circuit utilizes the constant current output characteristic of three terminal regulator LM317, output current Io2 size is realized by resistance Radj2 between LM317 output and adjustable side, Io2=1.25V/Radj2.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion made according to the technical solution of the utility model, all falls within protection domain of the present utility model.
Claims (3)
1. a LED lamp affixed to the ceiling, the lampshade (3) comprising installation chassis on the ceiling (1) and be connected with chassis (1), it is characterized in that: described chassis (1) lower surface is provided with circuit board (2), circuit board (2) is provided with the LED light source (4) be connected electrically, and described circuit board (2) is connected with inching switch (5) by wire.
2. LED lamp affixed to the ceiling according to claim 1, is characterized in that: described LED light source (4) adopts the LED lamp bead of 18 3535 SMD as light source, and LED lamp bead is divided into 3 groups to be connected in parallel on circuit board (2), and often group arranges 6 series connection.
3. LED lamp affixed to the ceiling according to claim 2, it is characterized in that: described circuit board (2) is provided with No. 3 drive circuits and 1 road regulating circuit, regulating circuit is made up of the first three terminal regulator LM317 and the first resistance, the input of the first three terminal regulator LM317 connects vehicle power, is parallel with the first resistance between output and adjustable side, adjustable side is connected with ground connection after slip variable resistance, and the adjustable side of slip variable resistance is fixedly connected with inching switch (5); Drive circuit is made up of the second three terminal regulator LM317 and the second resistance, the input of the second three terminal regulator LM317 is connected with the input of the first three terminal regulator LM317, output connect connect 6 LEDs light pearls, be parallel with the second resistance between output and adjustable side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420791592.9U CN204254494U (en) | 2014-12-16 | 2014-12-16 | A kind of LED lamp affixed to the ceiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420791592.9U CN204254494U (en) | 2014-12-16 | 2014-12-16 | A kind of LED lamp affixed to the ceiling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204254494U true CN204254494U (en) | 2015-04-08 |
Family
ID=52958798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420791592.9U Expired - Fee Related CN204254494U (en) | 2014-12-16 | 2014-12-16 | A kind of LED lamp affixed to the ceiling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204254494U (en) |
-
2014
- 2014-12-16 CN CN201420791592.9U patent/CN204254494U/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: 20150408 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |