CN202082713U - A desk lamp without a switch - Google Patents

Abstract

A no-switch desk lamp comprises a base, a lamp shade, a support stem, an adjusting stem, and an intelligent integrated block, wherein the lamp shade of the desk lamp adopts a shutter structure, blades on the lamp shade can turn, the adjusting stem for the blades of the lamp shade is arranged on the inner side of the lamp shade, the intelligent integrated block is embedded on the base, and the output end of the intelligent integrated block is connected with the electric source of the lamp. The intelligent integrated block comprises a photosensitive sensor, a microwave sensor, a light-density sensor, and a CB555 control unit. The lamp shade of the desk lamp adopts the shutter structure, so that the light transmission of the desk lamp can be adjusted, further the brightness can be adjusted; and no loss of a bulb is caused. The desk lamp has simple and safe structure, and since the integrated block is mounted on the desk lamp, the trouble caused when people search for a desk lamp switch in the dark is prevented, and convenience and a sense of safety are provided for people in the dark.

Description

A desk lamp without a switch

technical field

The utility model relates to a desk lamp, in particular to an intelligent desk lamp without a switch.

Background technique

With the continuous advancement of science and technology in modern society, people have higher and higher requirements for intelligence in life. While people are demanding quality of life, they also require products to be more and more refined. At present, there are many types of desk lamps, such as dimming and dimming desk lamps, fluorescent desk lamps, etc., and some desk lamps adopt a double lampshade structure. However, these desk lamps are usually equipped with switches. Automatic control, when people will turn on the desk lamp in the dark, especially there will be many inconveniences to children and the elderly.

Contents of the invention

The technical problem to be solved by the utility model is to provide a non-switch intelligent desk lamp which is safe to use and simple in structure in view of the deficiencies of the above-mentioned prior art.

The technical scheme of the utility model is realized in the following way: a desk lamp without switch, comprising: a base, a lampshade, a support rod, an adjustment rod, and an intelligent integrated block. The inner side is equipped with the adjustment lever of the lampshade blade; the base is embedded with an intelligent integrated block, and the output end of the intelligent integrated block is connected to the lamp power supply. The intelligent integrated block is composed of photosensitive sensor, microwave sensor, light intensity sensor and CB555 control unit.

The principle of the utility model is: when someone is close to the desk lamp, the microwave sensor detects the frequency-shifting signal of human activity, and the control circuit of the sensor will output a low level, which is added to the base of the triode T1, The triode T1 is cut off, so that the collector of the triode is at a high level, and the multivibrator composed of the CB555 chip starts to work. Because the light is weak and the value of the photoresistor is large, the voltage at the voltage dividing point of the photoresistor GM is lower than 1/3Vcc, and the output terminal of the CB555 control unit outputs a high level, which makes the thyristor conduct and the desk lamp can be turned on .

The advantage of the utility model is that the light shade of the lampshade is a louver structure, which can adjust the light transmittance of the desk lamp, so as to achieve the effect of adjusting the brightness, and there is no loss to the bulb. The structure is simple, and the structure is safe. Through the integrated block of the device of the desk lamp, the switch of the desk lamp is omitted, and it can provide people with a sense of convenience and security in the dark.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the principle of the utility model.

As shown in the figure: base 1, lampshade 2, support rod 3, adjustment rod 4, intelligent integrated block 5.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described.

Detailed ways

As shown in Figure 1, the lampshade 2 of the table lamp without switch adopts a louver structure, and the blades of the lampshade can be turned over by turning the adjustment lever 4 to the left and right, so as to achieve the state of the lampshade blades being opened or closed, thereby changing the position of the desk lamp. light transmittance. There is a hollow hole on the base 1 of the desk lamp, and an intelligent integrated block 5 is embedded in the hollow hole. The output end of the CB555 control unit in the intelligent integrated block is connected to the power supply of the desk lamp, and is connected to the light bulb of the desk lamp through a thin wire arranged inside the pole. .

CB555 is used to form a multivibrator. In order to prevent the light from changing slightly within a certain range and make the desk lamp bright and dark, a triode T2 is connected to the low-level trigger terminal of the CB555 chip to lock the working state of the desk lamp.

The intelligent integrated block uses microwave technology to establish a micro electric field in a small space. When someone enters the electric field, the echo will be reflected. After the detection of the electronic circuit, a weak frequency shift signal is detected, and the signal is processed intelligently. The control signal can be output as the input signal of the CB555 multivibrator.

The photosensitive sensor is a photosensitive resistor. The photosensitive resistor senses the intensity of light. Its resistance value changes with the intensity of light. When the light is strong, the resistance value becomes smaller, and its voltage value also becomes smaller. When the light is weak, its resistance When the value becomes larger, the external light intensity is converted into a voltage value, and then compared with the light intensity voltage value during standard reading. If the ambient light intensity voltage value is greater than the standard voltage, it indicates that the ambient light intensity generates a control signal and inputs it to the control circuit. On the contrary, if the ambient light intensity voltage value is less than the standard voltage, no control signal will be generated, and the desk lamp will not be turned on even if the microwave sensor senses that there are people around.

Claims (2)

1. A switchless table lamp, comprising: a base, a lampshade, a pole, an adjustment rod, and an intelligent integrated block. It is characterized in that: the lampshade of the desk lamp is a louver-like structure, the blades on the lampshade can be turned, and the inside of the lampshade is equipped with lampshade blades The adjustment lever; the base is embedded with an intelligent integrated block, and the output end of the intelligent integrated block is connected to the lamp power supply. 2. A switchless table lamp according to claim 1, characterized in that: the intelligent integrated block is composed of a photosensitive sensor, a microwave sensor, a light intensity sensor, and a CB555 control unit.

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