CN203504810U - LED lamp - Google Patents

LED lamp Download PDF

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Publication number
CN203504810U
CN203504810U CN201320533751.0U CN201320533751U CN203504810U CN 203504810 U CN203504810 U CN 203504810U CN 201320533751 U CN201320533751 U CN 201320533751U CN 203504810 U CN203504810 U CN 203504810U
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China
Prior art keywords
led
led lamp
lamp
circuit
light source
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CN201320533751.0U
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Chinese (zh)
Inventor
古伟南
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BEGHELLI CHINA LIGHTING Co Ltd
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BEGHELLI CHINA LIGHTING Co Ltd
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Priority to CN201320533751.0U priority Critical patent/CN203504810U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model relates to an LED lamp, and belongs to the lighting technical field. The LED lamp comprises a power source, an LED light source and an LED driver. The signal output terminal of the LED driver is electrically connected with the LED light source, and the signal input terminal of the LED driver is connected with the power source. The LED also comprises an emergency circuit assembly having an emergency function that life and property can be protected at a certain degree under an emergency situation. The LED lamp is different from a conventional microwave induction lamp in that the induction distance, switch delay time and induction state light control signals of the conventional microwave induction lamp are constant and cannot be set as needed, but the induction distance, switch delay time and induction state light control signals of a microwave inductor employed by the LED lamp are adjustable, so that light control signals at different occasions or in different periods of the same occasion can be adjusted, and light loss due to LED light decay can be recovered. The clean and green LED light source is employed by the LED lamp, so that the LED lamp has significant energy-saving effects which the conventional microwave induction lamp cannot reach.

Description

A kind of LED lamp
Technical field
The utility model relates to LED lamp, specifically belongs to lighting technical field.
Background technology
At present, the LED light fixture function singleness that domestic market band is microwave induced, inner microwave sensor distance of reaction, switch delay time, sense state dim signal are definite value, cannot set according to the actual requirements; Owing to limit by fitting structure, rarely have built-in emergency function, under powering-off state, microwave sensor cannot pass through LED drive point bright light tool; Simultaneously, LED there will be light decay in various degree when long-term use, traditional microwave induction light fixture because dim signal under sense state immobilizes, therefore the light loss that the light decay problem of LED is brought cannot be made up, original designing requirement cannot be reached after making light fixture use a period of time in its life time.
Utility model content
Technical problem: technical problem to be solved in the utility model is: a kind of LED lamp is provided.The microwave induced function of this LED lamp band, this light fixture can be applicable to apartment, and the region, corridor in the places such as market have emergency function and microwave induced function, and equipment is small and exquisite, with low cost.
Technical scheme: for solving the problems of the technologies described above, the technical scheme of this LED lamp with emergency function and microwave induced function of utility model is:
A kind of LED lamp, comprise power supply, LED driver, LED light source, the signal output part of described LED drive circuit is electrically connected described LED light source, and the signal input part of described LED driver connects power supply, also comprises microwave sensor, the input of described microwave sensor connects the signal output part of described LED driver, and the output of microwave sensor connects the PWM input of described LED driver.Power supply can provide the circuit of electric energy for AC power or other, preferably 220V alternating current.
As optimal technical scheme, the utility model also comprises emergency circuit assembly, and described emergency circuit assembly input connects power supply, and the output of described emergency circuit connects LED light source.
As optimal technical scheme, microwave sensor described in the utility model is 8 toggle switchs.
As optimal technical scheme, emergency circuit assembly described in the utility model comprises charging circuit, accumulator, LED drive circuit, described accumulator input connects charging circuit, the output of described accumulator connects LED drive circuit, the signal output part of described LED drive circuit connects described LED light source, and the signal input part of described charging circuit connects power supply.
As optimal technical scheme, the utility model also comprises testing circuit, and described testing circuit is serially connected with between power supply and described charging circuit.Mainly for detection of power supply normal power supply whether.
As optimal technical scheme, accumulator described in the utility model is Ni-MH battery.
As optimal technical scheme, LED drive circuit described in the utility model is for driving chip SD42506.
Beneficial effect: compared with prior art, the utlity model has following beneficial effect:
1. traditional microwave induction light fixture, rare with emergency function.The utility model has designed a kind of emergency circuit assembly, has realized emergency function.Under special emergency situation, to lives and properties, can play certain protective effect.
2. traditional microwave is responded to light fixture, and distance of reaction, switch delay time, sense state optical control signal are definite value, cannot set according to the actual requirements.The utility model has adopted the adjustable microwave sensor of optical control signal under a kind of distance of reaction, switch delay time and sense state, meets the needs of multiple different occasions and the needs of same occasion different times simultaneously.Adjustable optical control signal can also make up the light loss that LED light decay problem is brought.
3. adopt clean green LED light source, there is the incomparable super-high energy-saving effect of traditional microwave induction light fixture.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the theory diagram of emergency circuit assembly;
Fig. 3 is the power MOSFET tube circuit structure diagram of switching power source chip VIPER12A inside.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail.
Specific embodiment one
As shown in Figure 1: the utility model comprises power supply, LED driver, LED light source, the signal output part of described LED drive circuit is electrically connected described LED light source, and the signal input part of described LED driver connects power supply.
As optimal technical scheme, microwave sensor described in the utility model is 8 toggle switchs.
In the present embodiment, a kind of LED lamp, preferably microwave sensor is 220-240V, the input of 50/60Hz power supply, frequency is 3.7GHz, oneself power consumption < 0.7W, transmitting power is only < 10mW.Distance of reaction SENS is adjustable in 3.8-15m level Four, and switch delay time TIME is adjustable in 15s-15min level Four, and dim signal DIM is adjustable six grades of 50%-100%.These three parameters all can be passed through the toggle switch quick adjustment of microwave sensor one side, realize accurately and controlling.Microwave sensor volume is little, lightweight, can Fast Installation, dismounting and maintenance.Microwave sensor is with 8 toggle switchs, microwave sensor 3 is with 8 toggle switchs that regulate dim signal DIM, switch delay time TIME and distance of reaction SENS, wherein 1,2,3 is used for arranging dim signal DIM, 50%, 60%, 70%, 80%, 90%, 100% 6 grade of dim signal is adjustable, 4,5 are used for arranging switch delay time TIME, switch delay time 15s, 60s, 300s, 900s level Four is adjustable, 6,7 are used for arranging distance of reaction SENS, and distance of reaction 3.8m, 7.5m, 11.2m, 15m level Four is adjustable; By this toggle switch can set dim signal DIM, delay time TIME and distance of reaction SENS open the light.Dim signal DIM sets by 1,2,3, shown in table 1 specific as follows:
DIM l 2 3
50% ON ON ON
60% ON OFF ON
70% ON ON OFF
80% ON OFF OFF
90% OFF ON OFF
100% OFF OFF OFF
Table 1
Switch delay time TIME sets by 4,5, shown in table 2 specific as follows:
TIME 4 5
15S ON ON
60S OFF ON
300S ON OFF
900S OFF OFF
Table 2
Distance of reaction SENS sets by 6,7, shown in table 3 specific as follows:
SENS 6 7
3.8m ON ON
7.5m OFF ON
11.2m ON OFF
15m OFF OFF
Table 3
A LED lamp, power 3535LED in the LUXEON of LED light source employing PHILIPS LUMILEDS, has high light efficiency, high color rendering index (CRI), the advantages such as encapsulating structure compactness.LED driving power adopts the constant current with PWM dimming function to drive, and output current is 320mA ± 5%.By 8 toggle switchs of microwave sensor 1,2,3, can set dim signal DIM, the light loss that dimming function brings in order to make up LED light decay problem.During such as just installation, be set in 50% gear, use and be transferred to 60% gear after 1 year, by increasing current compensation light decay.
A LED lamp, also comprises microwave sensor, and the input of described microwave sensor connects the signal output part of described LED driver, and the output of microwave sensor connects the PWM input of described LED driver.Power supply can provide the circuit of electric energy for AC power or other, preferably 220V alternating current.Power 3535LED in the LUXEON of LED light source employing PHILIPSLUMILEDS, has high light efficiency, high color rendering index (CRI), the advantage of encapsulating structure compactness.LED driving power adopts the constant current with PWM dimming function to drive, and output current is 320mA ± 5%.Microwave sensor is with 8 toggle switchs, by this toggle switch can set dim signal DIM, delay time TIME and distance of reaction SENS open the light.Wherein dim signal DIM sets by 1,2,3, and switch delay time TIME sets by 4,5, and distance of reaction SENS sets by 6,7.Made up traditional microwave induction light fixture, distance of reaction, switch delay time, sense state optical control signal are definite value, the weakness that cannot set according to the actual requirements.Have the function of compensation light decay concurrently simultaneously.
Under normal civil power, LED driver provides the drive current of LED light source work on the one hand, thereby receives on the other hand the size of the pwm control signal regulation output electric current of microwave sensor input.
Whether microwave sensor has people close for induction.When nobody is close, microwave sensor output pwm control signal is controlled LED driver output current, and control LED light source light is output as 35%.When have people near time, microwave sensor output pwm control signal is controlled LED driver output current and is become large, and controls the output of LED light source light and increase.
Specific embodiment two
As shown in Figure 2, a kind of LED lamp, also comprises emergency circuit, and described emergency circuit assembly input connects power supply, and the output of described emergency circuit connects LED light source.Emergency circuit assembly described in the utility model comprises charging circuit, accumulator, LED drive circuit, described accumulator input connects charging circuit, the output of described accumulator connects LED drive circuit, the signal output part of described LED drive circuit connects described LED light source, and the signal input part of described charging circuit connects power supply.
A LED lamp, also comprises emergency circuit assembly, and power 3535LED in the LUXEON of LED light source employing PHILIPS LUMILEDS, has high light efficiency, high color rendering index (CRI), the advantages such as encapsulating structure compactness.LED driving power adopts the constant current with PWM dimming function to drive, and output current is 320mA ± 5%.By 8 toggle switchs of microwave sensor 1,2,3, can set dim signal DIM, has the function of compensation light decay.Realized emergency function simultaneously.
In the present embodiment, also comprise testing circuit, described testing circuit is serially connected with between power supply and described charging circuit.Mainly for detection of power supply normal power supply whether.When civil power is normal, by charging circuit, charge the battery.During power failure, battery discharge also passes through drive circuit driving LED light source works.
Specific embodiment three
In the present embodiment, emergency circuit assembly circuit adopts 220-240Vac, 50/60Hz input, and after transformation rectification, charging circuit inside is provided with switching power source chip VIPER12A, realizes constant voltage charge; During power-off, Ni-MH battery provides LED to drive chip SD42506 operating voltage, driving LED light source.Emergency circuit assembly 4 adopts 6V/2.5Ah Ni-MH battery, and the crash time reaches 2h.
Switching power source chip VIPER12A has 60Hz fixed switching frequency, and supply voltage scope is very wide: 9-38V, built-in current control type PWM modulator; There is the under-voltage of hysteresis characteristic, overvoltage, overcurrent and overheat protective function etc.
As shown in Figure 3, a kind of LED lamp, comprise emergency circuit, microwave sensor, the power MOSFET tube of the switching power source chip VIPER12A inside of described emergency circuit is sensitive field effect transistor, comprise two source S 1, S2, most drain currents are through S1 to ground, and very fraction flows through and detects resistance to ground through S2, by comparator and the comparison of 0.23V reference voltage, reach the object that detects electric current.The power consumption that has reduced output stage, has improved power-efficient.
In emergency circuit, the chip of LED drive circuit is SD42560, and the driving of three kinds of patterns of voltage-dropping type/booster type/buck-boost type can be provided, and adopts booster type to drive in the present embodiment.Fixed switching frequency 280KHz, built-in temperature protective circuit, current-limiting circuit, overvoltage crowbar and PWM light adjusting circuit, within the scope of input voltage 5V-36V, have good line regulation and load regulation.When input/output voltage changes, load current excursion is ± 3%.If while being connected in series a plurality of LED, efficiency can reach more than 96%.SD42560 adopts Controlled in Current Mode and Based, and loop structure simple and stable has transient response fast, and constant-current characteristics is good; Also have outstanding conversion efficiency, decompression mode reaches as high as 96% simultaneously, and buck pattern can reach 83%, and boost mode reaches as high as 95%.

Claims (8)

1. a LED lamp, comprises power supply, LED light source, it is characterized in that: also comprise LED driver, the signal output part of described LED driver is electrically connected described LED light source, and the signal input part of described LED driver connects power supply.
2. LED lamp according to claim 1, is characterized in that, also comprises microwave sensor, and the input of described microwave sensor connects the signal output part of described LED driver, and the output of microwave sensor connects the PWM input of described LED driver.
3. LED lamp according to claim 1, is characterized in that, also comprises emergency circuit assembly, and described emergency circuit assembly input connects power supply, and the output of described emergency circuit connects LED light source.
4. LED lamp according to claim 2, is characterized in that, described microwave sensor is 8 toggle switchs.
5. LED lamp according to claim 3, it is characterized in that, described emergency circuit assembly comprises charging circuit, accumulator, LED drive circuit, described accumulator input connects charging circuit, the output of described accumulator connects LED drive circuit, the signal output part of described LED drive circuit connects described LED light source, and the signal input part of described charging circuit connects power supply.
6. LED lamp according to claim 4, is characterized in that, also comprises testing circuit, and described testing circuit is serially connected with between power supply and described charging circuit.
7. LED lamp according to claim 4, is characterized in that, described accumulator is Ni-MH battery.
8. LED lamp according to claim 4, is characterized in that, described LED drive circuit is for driving chip SD42506.
CN201320533751.0U 2013-08-30 2013-08-30 LED lamp Active CN203504810U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320533751.0U CN203504810U (en) 2013-08-30 2013-08-30 LED lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320533751.0U CN203504810U (en) 2013-08-30 2013-08-30 LED lamp

Publications (1)

Publication Number Publication Date
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Application Number Title Priority Date Filing Date
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Country Status (1)

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CN (1) CN203504810U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104582194A (en) * 2015-01-20 2015-04-29 浙江大学 Single-power-key time delay state control PWM dimming circuit used for LED driver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104582194A (en) * 2015-01-20 2015-04-29 浙江大学 Single-power-key time delay state control PWM dimming circuit used for LED driver
CN104582194B (en) * 2015-01-20 2017-02-01 浙江大学 Single-power-key time delay state control PWM dimming circuit used for LED driver

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