CN201805607U - Energy-saving lamps that automatically adjust light intensity - Google Patents

Abstract

The utility model relates to an energy-saving lamp capable of regulating illumination intensity automatically, which comprises an energy-saving lamp L, a rectifier device, a control device and a light measuring device. The energy-saving lamp is characterized in a full-wave phase control circuit comprises a thyristor VT1 and diodes VD1-VD4, and a neon tube N is used as a trigger tube of the VT1; the light measuring device is an optoelectronic diode V which can transfer the illumination intensity to a certain voltage, further has very strong sensitivity and can lead the voltage to change in a certain linear manner, then a relational expression between the brightness and the voltage can be established, and then the output value of a slide rheostat W is set according to the luminance collected by the optoelectronic diode so as to change a charging time constant for a capacitor C, that is, change the conduction angle of the VT1 and further control the light brightness. The energy-saving lamp has the benefits of saving resources and protecting the environment more efficiently.

Description

Energy-saving lamps that automatically adjust light intensity

Technical field:

The utility model relates to an energy-saving lamp, in particular to an energy-saving lamp for automatically adjusting light intensity.

Background technique:

At present, energy is the basic support of the national economy and the basis for the survival of human society. Energy issues have always been a hot and difficult issue in my country's national economic and social development. The government has always attached great importance to energy. Energy security is an important aspect of national economic security, which directly affects national security, sustainable development and social stability. Energy security includes not only the security of energy supply, but also the control of environmental pollution caused by energy production and use.

However, the energy waste problem has become a big problem that cannot be ignored. As far as electric energy is concerned, electric energy is one of the clean energy sources in the world, and it is an indispensable part of our life. However, various waste situations have to make us reflect. We see unrestrained lighting in public places or indoor lights during the day. In this situation, should we find a way to control it.

However, there have been various sensor lights on the market, which can also effectively control the waste of electric energy, but most of them only function as switches, which still cause waste in some places, such as street lights, which are controlled by light sensor elements, but when the moonlight is bright, It is still so bright, and the brightness cannot be adjusted, which also causes unnecessary waste. There are many situations like this.

Therefore, a lamp that automatically adjusts the light intensity according to the change of the brightness of the external environment is provided here, so as to effectively avoid unnecessary waste. For example, when the lights are turned on in some places during the day, it feels too bright when the lights are turned on, and it is too dark when the lights are turned off. At this time, the utility model can automatically adjust the brightness in cooperation with the external environment. , the light will be bright until it reaches the set standard brightness, so as to achieve the purpose of saving power.

Utility model content:

The purpose of the utility model is to provide an energy-saving lamp which can automatically adjust the light intensity according to the brightness of the external environment.

The technical solution adopted by the utility model to solve the problem is: an energy-saving lamp that automatically adjusts the light intensity, which is composed of an energy-saving lamp L, a rectifying device, a control device and a photometric device; its feature is: thyristor VT1 and diodes VD1-VD4 A full-wave phase control circuit is formed, and a neon tube N is used as the trigger tube of VT1. The light metering device is a photodiode V, which can convert the light intensity into a certain voltage, and has strong sensitivity, which can make the voltage change linearly, and then establish the relationship between brightness and voltage, and then according to the photodiode collected The output value of the sliding rheostat W can be set according to the brightness obtained, thereby changing the charging time constant of the capacitor C, that is, changing the conduction angle of VT1, and controlling the brightness of the light.

The beneficial effects of the utility model are: resource saving and more effective environmental protection.

Description of drawings:

The utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the schematic circuit diagram of the utility model

Detailed ways:

In the first embodiment shown in the figure, an energy-saving lamp that automatically adjusts light intensity is characterized in that it is composed of an energy-saving lamp L, a rectifying device, a control device and a photometry device. The utility model adopts the recently popular LED energy-saving lamp, which is composed of a thyristor VT1 and diodes VD1-VD4 to form a full-wave phase control circuit, and a neon tube N is used as a trigger tube of VT1. The light metering device is a photodiode V, which can convert the light intensity into a certain voltage, and has strong sensitivity, which can make the voltage change linearly, and then establish the relationship between brightness and voltage, and then according to the photodiode collected The output value of the sliding rheostat W can be set according to the brightness obtained, thereby changing the charging time constant of the capacitor C, that is, changing the conduction angle of VT1, and controlling the brightness of the light.

In the second embodiment shown in the figure, an energy-saving lamp that automatically adjusts light intensity is characterized in that: the input AC voltage Vi is firstly rectified by four diodes VD1~VD4 full-wave rectification, and then filtered by capacitor C. Wave, the output of both ends of the photodiode V is a DC voltage; the neon tube N is used as the trigger tube of VT1, and the resistance of the sliding rheostat W is appropriately adjusted according to the required brightness, and the charging constant of the capacitor C is changed, which also changes the conduction of VT1. Pass angle; the photodiode V is set outdoors to collect luminosity values and convert light signals into electrical signals. Under the action of reverse voltage, the greater the intensity of light and the greater the reverse current, the darker the load energy-saving lamp L will be.

Claims (1)

1. electricity-saving lamp of automatically regulating intensity of illumination, it is made up of electricity-saving lamp L, rectifying device, control device and light measurer; It is characterized in that: thyristor VT1 and diode VD1～VD4 forms the all-wave phased circuit, makes the trigger tube of VT1 with neon tube N; Light measurer is a kind of photodiode V.

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