CN202168250U

CN202168250U - LED ceiling lamp and control circuit thereof

Info

Publication number: CN202168250U
Application number: CN2011202550972U
Authority: CN
Inventors: 陈越华; 雷应灵; 郭敏强; 李振波
Original assignee: SHENZHEN SKYWORTH LIGHTING ELECTRIC CO Ltd
Current assignee: SHENZHEN SKYWORTH LIGHTING ELECTRIC CO Ltd
Priority date: 2011-07-19
Filing date: 2011-07-19
Publication date: 2012-03-14
Anticipated expiration: 2021-07-19

Abstract

The utility model is suitable for the field of ordinary lighting fixtures, especially relating to a LED ceiling lamp and the control circuit thereof. In the utility model, the human body induction control circuit of the present LED ceiling lamp comprises a human body heat energy inductor T1, a control chip U1, and a relay K1. When the environment is not bright enough and a human body goes across, the human body heat energy inductor T1 emits a signal to the control chip U1 so as to make the control chip U1 control the relay K1 to turn on the LED lamp bulb and can delay for a while so as to enable the LED ceiling lamp to work stably and reliably. Furthermore, the heat emitted during operating of the LED lamp can be dissipated through the aluminium alloy lamp panel whose heat radiating area is large enough and heat radiation effect is good so as to prolong significantly the service life of the lighting lamp. In addition, the ceiling lamp is characterized by the high power, uniform light, and the emitted light luminous flux and the illuminance approximating the traditional ceiling lamp.

Description

A kind of LED ceiling lighting and control circuit thereof

Technical field

The utility model belongs to field of illuminating lamps, relates in particular to a kind of LED ceiling lighting and control circuit thereof.

Background technology

Along with the raising of current LED encapsulation technology and light efficiency, LED uses lighting field and obtains broad development, and the LED ceiling lighting replaces the traditional lighting ceiling lighting gradually.

Existing LED ceiling lighting can be through its switch of induction human body control, and still, there is unstable insecure problem in the human body induction control circuit of existing LED ceiling lighting, and the controlled function of not delaying time; In addition, the light fixture heat dissipation design is unreasonable, can not dispel the heat effectively; Influenced the life-span of light fixture so greatly, in addition, existing LED ceiling lighting exists power little; Bright dipping is inhomogeneous, and therefore the problem that the luminous flux of bright dipping and illumination are not enough can not replace traditional ceiling light fully.

The utility model content

The purpose of the utility model is to provide a kind of LED ceiling lighting human body induction control circuit, and there is unstable insecure problem in the human body induction control circuit that is intended to solve existing LED ceiling lighting.

The utility model is achieved in that a kind of LED ceiling lighting human body induction control circuit, is connected in the current supply circuit of LED lamp pearl, and said human body induction control circuit comprises:

Human body body heat sensor T1, filter capacitor C1, current-limiting resistance R1, current-limiting resistance R2, control chip U1, switching tube and relay K 1;

The first end ground connection of said human body body heat sensor T1; The 3rd end of said human body body heat sensor T1 is through filter capacitor C1 ground connection; Second termination of said human body body heat sensor T1 connects the input of control chip U1 through current-limiting resistance R1; The output of said control chip U1 connects control end of switching tube through current-limiting resistance R2, the cold end ground connection of said switching tube, first end of the electromagnet of the high potential relay termination K1 of said switching tube; Second termination power of the electromagnet of said relay K 1, the switch of said relay K 1 is connected in the current supply circuit of LED lamp pearl.

Another purpose of the utility model is to provide a kind of LED ceiling lighting control circuit; Comprise the LED constant-current circuit; The input termination AC power of said LED constant-current circuit; The positive pole of the output termination LED lamp pearl of said LED constant-current circuit, said LED ceiling lighting control circuit also comprises the human body induction control circuit, said human body induction control circuit comprises:

The first end ground connection of said human body body heat sensor T1; The 3rd end of said human body body heat sensor T1 is through filter capacitor C1 ground connection; Second termination of said human body body heat sensor T1 connects the input of control chip U1 through current-limiting resistance R1; The output of said control chip U1 connects control end of switching tube through current-limiting resistance R2, the cold end ground connection of said switching tube, first end of the electromagnet of the high potential relay termination K1 of said switching tube; Second termination power of the electromagnet of said relay K 1, the switch of said relay K 1 are connected between the negative pole of ground end and LED lamp pearl of LED constant-current circuit.

In the utility model; LED ceiling lighting human body induction control circuit comprises human body body heat sensor T1, control chip U1 and relay K 1, and not enough when the brightness of environment of living in, and there have human body to walk to be out-of-date; Human body body heat sensor T1 sends signal and gives control chip U1; Control chip U1 control relay K1 opens LED lamp pearl and lights, and can delay time a period of time, makes the LED ceiling lighting can stablize, work reliably.

Another purpose of the utility model is to provide a kind of LED ceiling lighting, be intended to solve existing LED ceiling lighting exist can not dispel the heat effectively, power is little, bright dipping is inhomogeneous, the problem that the luminous flux of bright dipping and illumination are not enough.

The utility model is to realize like this; A kind of LED ceiling lighting; Said LED ceiling lighting comprises above-mentioned LED ceiling lighting control circuit; Said LED ceiling lighting also comprises lamp panel, lamp plate and lampshade, and said lamp plate and lampshade all are fixed on the lamp panel, and said a plurality of LED lamp pearls are arranged and are installed on the lamp plate equably.

In the utility model, the LED ceiling lighting adopts lamp plate fixed L ED lamp pearl, and lamp plate contacts with the lamp panel large tracts of land; The heat that the work of LED lamp pearl the time is distributed through area of dissipation enough greatly the aluminium alloy lamp panel of good heat dissipation effect distribute effectively; Can improve the life-span of light fixture greatly, in addition, it is big that ceiling lighting has power; Bright dipping is even, and bright dipping luminous flux and illumination are near the characteristics of traditional ceiling light.

Description of drawings

Fig. 1 is the circuit structure diagram of the LED ceiling lighting control circuit that provides of the utility model first embodiment;

Fig. 2 is the circuit structure diagram of the LED ceiling lighting control circuit that provides of the utility model second embodiment;

Fig. 3 is the structure chart of the LED ceiling lighting that provides of the utility model embodiment.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Fig. 1 shows the circuit structure of the LED ceiling lighting control circuit that the utility model first embodiment provides, and for the ease of explanation, only shows the part relevant with the utility model embodiment, and details are as follows.

LED ceiling lighting control circuit comprises LED constant-current circuit 100; The input termination AC power of LED constant-current circuit 100; The positive pole of the output termination LED lamp pearl 300 of LED constant-current circuit 100; LED ceiling lighting control circuit also comprises human body induction control circuit 200, and human body induction control circuit 200 comprises:

Human body body heat sensor T1, filter capacitor C1, current-limiting resistance R1, current-limiting resistance R2, control chip U1, switching tube 201 and relay K 1;

The first end ground connection of human body body heat sensor T1; The 3rd end of human body body heat sensor T1 is through filter capacitor C1 ground connection; Second termination of human body body heat sensor T1 meets the input IN of control chip U1 through current-limiting resistance R1; The output OUT of control chip U1 connects the control end of switching tube 201, the cold end ground connection of switching tube 201, first end of the electromagnet of the high potential relay termination K1 of switching tube 201 through current-limiting resistance R2; The second termination power VCC of the electromagnet of relay K 1, the switch of relay K 1 are connected between the negative pole of ground end and LED lamp pearl 300 of LED constant-current circuit 100.

As the utility model one embodiment, switching tube 201 adopts triode Q1, and the base stage of triode Q1 is the control end of switching tube 201, and the current collection of triode Q1 is the hot end of switching tube 201 very, and the emission of triode Q1 is the cold end of switching tube 201 very.

Fig. 2 shows the circuit structure of the LED ceiling lighting control circuit that the utility model second embodiment provides, and for the ease of explanation, only shows the part relevant with the utility model embodiment, and details are as follows.

As the utility model one embodiment; Switching tube 201 adopts N type metal-oxide-semiconductor Q2; The grid of N type metal-oxide-semiconductor Q2 is the control end of switching tube 201, and the drain electrode of N type metal-oxide-semiconductor Q2 is the hot end of switching tube 201, and the source electrode of N type metal-oxide-semiconductor Q2 is the cold end of switching tube 201.

In the utility model embodiment; LED ceiling lighting human body induction control circuit comprises human body body heat sensor T1, control chip U1 and relay K 1; Not enough when the brightness of environment of living in, and there have human body to walk to be out-of-date, and human body body heat sensor T1 sends signal and gives control chip U1; Control chip U1 control relay K1 opens LED lamp pearl and lights, and makes the LED ceiling lighting can stablize, work reliably.

In addition, through the program in the control chip U1 is set, can be so that the work of control chip U1 time-delay control LED lamp pearl.

Fig. 3 shows the structure of the LED ceiling lighting that the utility model embodiment provides, and for the ease of explanation, only shows the part relevant with the utility model embodiment, and details are as follows.

The LED ceiling lighting comprises above-mentioned LED ceiling lighting control circuit; The LED ceiling lighting also comprises lamp panel 1, lamp plate 2 and lampshade 3; Lamp plate 2 all is fixed on the lamp panel 1 with lampshade 3, and lampshade 3 light transmittances are high, wall thickness is even, bright dipping is even, and a plurality of LED lamp pearls 300 are arranged and are installed in equably on the lamp plate 2; Lamp panel 1 area of dissipation is enough big, adopts aluminum alloy materials.

In addition, human body induction control circuit 200 is also fixing with lamp panel 1.

The LED ceiling lighting also comprises the constant-current supply 4 that is fixed on the lamp panel 1; Constant-current supply 4 is electrically connected with LED ceiling lighting control circuit and LED lamp pearl 300 respectively; For LED ceiling lighting control circuit and 300 power supplies of LED lamp pearl, also be provided with the human body body heat sensor diffuser 5 corresponding on the lampshade 3 with human body body heat sensor T1.

In the utility model embodiment, the LED ceiling lighting adopts lamp plate fixed L ED lamp pearl, and lamp plate contacts with the lamp panel large tracts of land; The heat that the work of LED light fixture the time is distributed through area of dissipation enough greatly the aluminium alloy lamp panel of good heat dissipation effect distribute effectively; Can improve the life-span of light fixture greatly, in addition, it is big that ceiling lighting has power; Bright dipping is even, and bright dipping luminous flux and illumination are near the characteristics of traditional ceiling light.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims

1. a LED ceiling lighting human body induction control circuit is connected in the current supply circuit of LED lamp pearl, it is characterized in that said human body induction control circuit comprises:

2. LED ceiling lighting human body induction control circuit as claimed in claim 1; It is characterized in that; Said switching tube adopts triode Q1; The base stage of said triode Q1 is a control end of switching tube, and the current collection of said triode Q1 is the hot end of switching tube very, and the emission of said triode Q1 is the cold end of switching tube very.

3. LED ceiling lighting human body induction control circuit as claimed in claim 1; It is characterized in that; Said switching tube adopts N type metal-oxide-semiconductor Q2; The grid of said N type metal-oxide-semiconductor Q2 is a control end of switching tube, and the drain electrode of said N type metal-oxide-semiconductor Q2 is the hot end of switching tube, and the source electrode of said N type metal-oxide-semiconductor Q2 is the cold end of switching tube.

4. LED ceiling lighting control circuit; Comprise the LED constant-current circuit; The input termination AC power of said LED constant-current circuit, the positive pole of the output termination LED lamp pearl of said LED constant-current circuit is characterized in that; Said LED ceiling lighting control circuit also comprises the human body induction control circuit, and said human body induction control circuit comprises:

5. LED ceiling lighting control circuit as claimed in claim 4; It is characterized in that; Said switching tube adopts triode Q1; The base stage of said triode Q1 is a control end of switching tube, and the current collection of said triode Q1 is the hot end of switching tube very, and the emission of said triode Q1 is the cold end of switching tube very.

6. LED ceiling lighting control circuit as claimed in claim 4; It is characterized in that; Said switching tube adopts N type metal-oxide-semiconductor Q2; The grid of said N type metal-oxide-semiconductor Q2 is a control end of switching tube, and the drain electrode of said N type metal-oxide-semiconductor Q2 is the hot end of switching tube, and the source electrode of said N type metal-oxide-semiconductor Q2 is the cold end of switching tube.

7. LED ceiling lighting; It is characterized in that; Said LED ceiling lighting comprises each described LED ceiling lighting control circuit like claim 4-6; Said LED ceiling lighting also comprises lamp panel, lamp plate and lampshade, and said lamp plate and lampshade all are fixed on the lamp panel, and said a plurality of LED lamp pearls are arranged and are installed on the lamp plate equably.