CN202812990U

CN202812990U - Light-emitting diode (LED) lamp with automatic adjustable light intensity

Info

Publication number: CN202812990U
Application number: CN2012205562105U
Authority: CN
Inventors: 张月兰
Original assignee: SHANGYU TIANYI LIGHTING ELECTRONICS CO Ltd
Current assignee: SHANGYU TIANYI LIGHTING ELECTRONICS CO Ltd
Priority date: 2012-10-26
Filing date: 2012-10-26
Publication date: 2013-03-20
Anticipated expiration: 2022-10-26

Abstract

The utility model discloses an LED lamp with automatic adjustable light intensity. The LED lamp comprises a lamp holder, a lampshade arranged above the lamp holder and LED illuminating components which are arranged between the lamp holder and the lampshade; and the LED lamp is further provided with a sensor, a first comparator, a second comparator, a first switch and a second switch, wherein the sensor is used for sensing environmental light intensity, the first comparator is used for receiving sensor signals and comparing the sensor signals with a first set value, the second comparator is used for receiving the sensor signals and comparing the sensor signals with a second set value, the first switch is controlled by output signals of the first comparator, and the second switch is controlled by output signals of the second comparator; the LED illuminating components are two groups of LEDs, one group of the LEDs is controlled by the first switch, and the other group is controlled by the second switch. According to the LED lamp with automatic adjustable light intensity, own luminous intensity can be adjusted automatically according to changes of the environmental light intensity, and a lighting purpose is achieved while energy is saved.

Description

But a kind of LED light fixture of automatically adjust light strength

Technical field

The utility model relates to the lighting design field, but is specifically related to a kind of LED light fixture of automatically adjust light strength.

Background technology

LED is light emitting diode, is the new technology that grows up mid-term in 20th century.It relies on the electronics in the heterojunction semiconductor directly luminous by the energy jump that potential barrier produces.

The light fixture of making by LED does not produce heat owing to luminescence process, and energy conversion efficiency approaches absolutely, and overlong service life is the developing direction of lighting engineering.

Generally, the LED light fixture comprises lamp socket, the lampshade of lamp socket top and the LED luminescence component between lamp socket and lampshade.

Application number is that the Chinese utility model of 201120269054.X discloses a kind of LED electricity-saving lamp, comprises lampshade, led light source and lamp holder.Adopt great power LED as illuminating source, wherein lamp holder is comprised of cap body, insulator and scolding tin, be an integral body of closed at both ends, can effectively solve the heat problem that led light source produces by the fin in the lamp holder, louvre and cap body shell.The lampshade inwall is coated with phosphor powder layer, by the draw-in groove on lampshade port and the cap body, forms the reverse buckling type syndeton, and lampshade and lamp holder are connected and fixed.

In the prior art, the LED light fixture generally only comprises one group of LED, and light intensity can not be regulated, thereby cause under dim light, the brightness of LED light fixture is inadequate, and under well-lighted condition, the LED light fixture still sends brighter light, thereby causes the waste of the energy.

Therefore, need to provide a kind of LED light fixture, can automatically regulate the light intensity of self according to the variation of environmental light intensity, energy savings simultaneously, plays the purpose of illumination.

The utility model content

But the utility model provides a kind of LED light fixture of automatically adjust light strength, can automatically regulate the luminous intensity of self according to the variation of environmental light intensity, in energy savings, plays the purpose of illumination.

But a kind of LED light fixture of automatically adjust light strength comprises lamp socket, at the lampshade above the lamp socket and the LED luminescence component between lamp socket and lampshade, also is provided with:

The sensor that is used for the induced environment light intensity;

Be used for receiving described sensor signal and set value first comparator of comparing with first;

Be used for receiving described sensor signal and set value second comparator of comparing with second;

Be subjected to the first switch of described the first comparator output signal control;

Be subjected to the second switch of described the second comparator output signal control;

Described LED luminescence component is two groups of LED, and wherein one group is controlled by the first switch, and another group is controlled by second switch.

The first setting value can be according to different setting of LED light fixture environment for use with the second setting value, and the first setting value is less than the second setting value, being controlled by the number of LED of second switch more than the number of the LED that is controlled by the first switch, also is that the light intensity of LED of beam intensity ratio the first switch opens respective sets of the second switch LED that opens respective sets is strong.

Described sensor sensing is to environmental light intensity, this signal is sent to the first comparator and the second comparator, if this light intensity signal is less than the first setting value, then the first comparator and the second comparator are controlled respectively corresponding the first switch and second switch, open two groups of LED; Less than the second setting value, then the second comparator control second switch is opened the LED of respective sets if this light intensity signal is greater than the first setting value; If this light intensity signal is greater than the second setting value, then the first comparator is controlled the LED of the first switch opens respective sets.

As preferably, described two groups of LED all ringwise the interval arrange.

Two groups of LED all ringwise the interval arrange that in the time of can guaranteeing that any one group of LED opens, the light that sends evenly distributes at LED light fixture peripheral space.

As preferably, the outer cooling mechanism that is arranged with of described lampshade.

During the work of LED luminescence component, will produce a large amount of heat, these caloric requirements in time lose, otherwise, with the life-span that greatly shortens the LED light fixture.

Cooling mechanism can adopt prior art, for example in the periphery of lampshade radiating groove is set, and increases the area of dissipation of lampshade, simultaneously, is convenient to passing through of air-flow.

As preferably, described sensor is fixed on the sidewall of lamp socket.

Described sensor setting can farthest prevent sensor stopping LED light when the sidewall of lamp socket.

But generally, after the LED lamp installation, the lamp socket position all can be subject to stopping of lampshade, thereby causes the error to the ambient light induction, and preferably, described sensor is fixed on the sidewall of lampshade.

In order to make in a wider context induced environment light of sensor, preferably, described sensor is fixed on the end face of lampshade.

But the LED light fixture of a kind of automatically adjust light strength of the utility model, variation that can the induced environment light intensity, and automatically regulate self luminous intensity according to the size of environmental light intensity, in energy savings, play the purpose of illumination.

Description of drawings

But Fig. 1 is the structure chart of the LED light fixture of the utility model automatically adjust light strength;

But Fig. 2 is the schematic diagram of LED light fixture the first embodiment of the utility model automatically adjust light strength;

But Fig. 3 is the schematic diagram of LED light fixture the second embodiment of the utility model automatically adjust light strength;

But Fig. 4 is the LED light fixture end face schematic diagram of the utility model automatically adjust light strength.

The specific embodiment

Below in conjunction with accompanying drawing, but the LED light fixture of the utility model automatically adjust light strength is described in detail.

Such as Fig. 1, Fig. 2, shown in Figure 3, but a kind of LED light fixture of automatically adjust light strength comprises lamp socket 1, at the lampshade 2 above the lamp socket 1 and the LED luminescence component between lamp socket 1 and lampshade 2, also is provided with:

The sensor that is used for the induced environment light intensity;

The first comparator that is used for sensor-lodging and compares with the first setting value;

The second comparator that is used for sensor-lodging and compares with the second setting value;

Be subjected to the first switch of the first comparator output signal control;

Be subjected to the second switch of the second comparator output signal control;

The LED luminescence component is two groups of LED, and wherein one group is controlled by the first switch, and another group is controlled by second switch.

The one group of LED that is controlled by the first switch is the first illuminating part 5, and the one group of LED that is controlled by second switch is the second illuminating part 4.

As shown in Figure 4, the first illuminating part 5 and the second illuminating part 4 all ringwise the interval arrange.

As shown in Figure 2, the first embodiment of the present utility model, but the LED light fixture of automatically adjust light strength, comprise lamp socket 1, at the lampshade 2 above the lamp socket 1 and the LED luminescence component between lamp socket 1 and lampshade 2, sensor can be fixed on the sidewall of lamp socket 1, the sidewall of lampshade 2 or the end face of lampshade 2.

As shown in Figure 3, the second embodiment of the present utility model is the outer cooling mechanism that is arranged with of lampshade 2 with the difference of the first embodiment.Cooling mechanism is the some radiating grooves 3 that are positioned at lampshade 2 sidewalls.

During the utility model work, sensor sensing is to environmental light intensity, this signal is sent to the first comparator and the second comparator, if this light intensity signal is less than the first setting value, then the first comparator and the second comparator are controlled respectively corresponding the first switch and second switch, open the first illuminating part 5 and the second illuminating part 4; Less than the second setting value, then the second comparator control second switch is opened the second illuminating part 4 if this light intensity signal is greater than the first setting value; If this light intensity signal is greater than the second setting value, then the first comparator is controlled the first switch opens the first illuminating part 5.

The above only is better implementation example of the present utility model, is not limited to the utility model, and is all within the utility model spirit and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. but the LED light fixture of an automatically adjust light strength comprises lamp socket, at the lampshade above the lamp socket and the LED luminescence component between lamp socket and lampshade, it is characterized in that, also is provided with:

The sensor that is used for the induced environment light intensity;

2. but the LED light fixture of automatically adjust light strength as claimed in claim 1 is characterized in that, described two groups of LED all ringwise the interval arrange.

3. but the LED light fixture of automatically adjust light strength as claimed in claim 2 is characterized in that, the outer cooling mechanism that is arranged with of described lampshade.

4. but the LED light fixture of automatically adjust light strength as claimed in claim 2 or claim 3 is characterized in that described sensor is fixed on the sidewall of lamp socket.

5. but the LED light fixture of automatically adjust light strength as claimed in claim 2 or claim 3 is characterized in that described sensor is fixed on the sidewall of lampshade.

6. but the LED light fixture of automatically adjust light strength as claimed in claim 2 or claim 3 is characterized in that described sensor is fixed on the end face of lampshade.