CN205640455U - Photosensitive resistive switching desk lamp - Google Patents

Abstract

The utility model belongs to the daily necessities field especially relates to a photosensitive resistive switching desk lamp, including the lamp body, with the lamp body links to each other and is right lamp body played a supporting role's lamp stand, the lamp body is equipped with the luminous body that can turn into the electric energy light energy, the lamp stand be equipped with according to the room brilliancy automatic open and close and be less than in the room brilliancy last the luminous night light body when establishing fixed valve value, photosensitive resistive switching desk lamp that this scheme provided can help the especially near -sighted people of people clearly to see the shift knob position of desk lamp at night, can be the once accurate switch of opening. In addition, LED lamp that this scheme was used is power consumptive very little and because effect LED on the daytime lamp of photo resistance can not shine, can not waste. So can solve the current not enough problem of night light desk lamp lighting time well.

Description

A photoresistor switch desk lamp

technical field

The utility model belongs to the field of daily necessities, in particular to a photosensitive resistor switch desk lamp.

Background technique

With the advancement of science and technology, people's quality of life is getting higher and higher, and desk lamps have become one of the necessary electrical appliances in the family. However, when people wake up from sleep and need to turn on the light at night, it is difficult to find the switch of the desk lamp at once because there are no other lights, so that people need to search for a period of time before they can find the desk lamp, which is a waste of time . In addition, when people are looking for a desk lamp in the dark, because they cannot see the front and need to smear their way forward, there is also the possibility of bumping into other things and being injured.

In order to solve the above problems, people have invented a desk lamp with luminous function. For example, a utility model patent with the patent application number CN201020128064.7 and the patent name "A Luminous Desk Lamp" discloses a desk lamp. The luminous desk lamp includes The desk lamp base, the lampshade, the lamp tube, the switch, the desk lamp base, the lampshade and the lamp tube are sequentially connected, the switch is placed on the upper surface of the desk lamp base, and the luminous desk lamp also includes a luminous unit, and the luminous unit covers the upper surface of the desk lamp base. Not only has the lighting function of an ordinary desk lamp, but also has the function of night light, so that users can easily find the switch of the desk lamp when the light is dark, especially at night. At the same time, the brightness of the night light is very weak, which will not affect the user's sleep and other activities.

However, the luminous time of this desk lamp is limited, and usually basically just loses the luminous effect in the second half of the night. So need a kind of luminous desk lamp that can be long, can turn on and off luminous function automatically according to indoor brightness.

Contents of the invention

The purpose of the utility model is to provide a photoresistor switch table lamp, aiming to solve the problem of insufficient luminous duration of the existing luminous table lamps.

The utility model is realized in this way, a kind of photoresistor switch table lamp, comprises lamp body, is connected with described lamp body and plays the lamp holder that supports described lamp body; Described lamp body is provided with and can convert electric energy into A luminous body of light energy, the lamp holder is provided with a luminous body that is automatically turned on and off according to the indoor brightness and continues to emit light when the indoor brightness is lower than the set threshold. The luminous body automatically lights up at night, and the luminous body goes out by itself during the day. In addition, the brightness of the light emitted by the luminous body will not attenuate at night, which can ensure the luminescence all night.

A further technical solution of the utility model is: the luminous body includes a luminous unit capable of converting electrical energy into light energy and a luminous adjustment unit connected with the luminous unit and adjusting the luminous unit according to indoor brightness.

A further technical solution of the present invention is: the night light adjusting unit is provided with a night light gradient unit that controls the night light emitting unit to gradually become brighter. The gradual brightening is realized through the luminous gradient unit, and the sudden brightening will not cause users to panic.

A further technical proposal of the utility model is: the luminous unit is an LED display lamp.

A further technical proposal of the utility model is: the luminous gradient unit is a thyristor. Thyristor is the abbreviation of thyristor, also known as silicon controlled rectifier, previously referred to as thyristor; in 1957, General Electric Company of the United States developed the world's first thyristor product and commercialized it in 1958 The thyristor is a PNPN four-layer semiconductor structure, which has three poles: anode, cathode and gate; the thyristor has the characteristics of a silicon rectifier device, can work under high voltage and high current conditions, and its working process can be controlled and is widely used In electronic circuits such as controllable rectification, AC voltage regulation, non-contact electronic switch, inverter and frequency conversion.

The further technical solution of the utility model is: the luminous body includes an LED lamp, a thyristor whose input end is connected to the output end of the LED lamp; a diode connected in parallel with the LED lamp and the thyristor is connected in parallel with the diode The resistor is connected in parallel with the LED lamp and the thyristor; and the photoresistor is connected in series with the output terminal of the thyristor, and the photoresistor is connected in series with the diode; the photoresistor tor in series with the resistor.

A further technical solution of the utility model is: the model of the thyristor is MCR100-8. This type is a commonly used thyristor with an operating temperature range of -40°C to +110°C. Package type is TO-92, pin count 3.

A further technical solution of the utility model is: the model of the diode is IN4007. IN4007 is a Standard Recovery type diode. The package form is DIODE0.4. Number of pins: 2.

A further technical solution of the utility model is: the resistance value of the resistor is 800-1200 ohms.

A further technical solution of the utility model is: the model of the photoresistor is one of GL10516, GL10528, GL10537-1, and GL10537-2. These four are common photoresistors.

The beneficial effects of the utility model are: the photoresistor switch desk lamp provided by the scheme can help people, especially myopic people, clearly see the position of the switch button of the desk lamp in the dark, and can turn on the switch accurately at one time. In addition, the LED lamp used in this solution consumes very little power, and the LED lamp will not light up during the day due to the effect of the photoresistor, so electricity will not be wasted. Therefore, the problem that the lighting time of the existing luminous desk lamp is not enough can be well solved.

Description of drawings

Fig. 1 is a schematic diagram of the appearance of the photoresistor switch table lamp provided by the embodiment of the present invention.

Fig. 2 is a circuit diagram of the photoresistor switch desk lamp luminous body provided by the embodiment of the utility model.

Reference signs: 1-lamp body; 2-lamp holder; 3-luminous body; LED-LED display lamp; RL-photosensitive resistor; R-resistance; VD-diode; VT-thyristor.

detailed description

Fig. 1 is a schematic diagram of the appearance of the photoresistor switch table lamp provided by the embodiment of the present invention. As can be seen from the figure, the photoresistor switch desk lamp in this example comprises a lamp body 1, which is connected with the lamp body 1 and supports the lamp holder 2; A luminous body converted into light energy (not shown in the figure), the lamp holder 2 is provided with a luminous body 3 that is automatically turned on and off according to the indoor brightness and continues to emit light when the indoor brightness is lower than the set threshold. The luminous body 3 lights up automatically at night, and the luminous body extinguishes itself during the day. In addition, the brightness of the light emitted by the luminous body will not attenuate at night, which can ensure the luminescence all night.

Fig. 2 is a circuit diagram of the photoresistor switch desk lamp luminous body provided by the embodiment of the utility model. It can be seen that the luminous body includes an LED lamp, a thyristor whose input end is connected to the output end of the LED lamp; a diode connected in parallel with the LED lamp and the thyristor, a resistor connected in parallel with the diode, and a resistor connected in parallel with the diode. connected in parallel with the LED lamp and the thyristor; and a photosensitive resistor connected in series with the output terminal of the thyristor, the photosensitive resistor connected in series with the diode; the photosensitive resistor connected in series with the resistor in series.

When the light is bright, the resistance value of the photoresistor RL is small, and the unidirectional pulsed DC voltage after the 220V AC voltage is rectified by VD is small after being divided by R and RL, and the voltage added to the control pole of the thyristor VT is small. At this time The thyristor Vt cannot be turned on, so the lamp LED circuit has no current and the lamp is not bright. When the light is dark, the resistance value of the photoresistor RL is large, the voltage after the voltage division of R and RL is large, and the voltage added to the control electrode of the thyristor VT is large. At this time, the thyristor VT enters the conduction state, so the lamp LED circuit has a current flow , the lamp lights up.

The photoresistor switch desk lamp provided by this solution can help people, especially myopic people, clearly see the position of the switch button of the desk lamp in the dark, and can turn on the switch accurately at one time. In addition, the LED lamp used in this solution consumes very little power, and the LED lamp will not light up during the day due to the effect of the photoresistor, so electricity will not be wasted. Therefore, the problem that the lighting time of the existing luminous desk lamp is not enough can be well solved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A photoresistor switch desk lamp is characterized in that: comprise lamp body, be connected with described lamp body and play the lamp holder of supporting effect to described lamp body; Described lamp body is provided with and can convert electric energy into light energy The lamp holder is equipped with a luminous body that is automatically turned on and off according to the indoor brightness and continues to emit light when the indoor brightness is lower than the set threshold. 2. The photoresistor switch desk lamp according to claim 1, characterized in that: the luminous body includes a luminous light-emitting unit that can convert electrical energy into light energy and is connected with the luminous light-emitting unit and adjusts the luminous light according to the indoor brightness. Luminous adjustment unit for luminous unit adjustment. 3 . The photoresistor switch table lamp according to claim 2 , wherein the luminous adjustment unit is provided with a luminous gradient unit for controlling the luminous unit to gradually become brighter. 4 . 4. The photoresistor switch table lamp according to claim 3, wherein the luminous unit is an LED display lamp. 5. The photoresistor switch table lamp according to claim 3, characterized in that: the luminous gradient unit is a thyristor. 6. According to the photosensitive resistance switch desk lamp described in any one of claims 1-5, it is characterized in that: the luminous body comprises a thyristor whose input end is connected to the output end of an LED lamp, and an output end of the LED lamp; a diode connected in parallel with the thyristor, a resistor connected in parallel with the diode, the resistor connected in parallel with the LED lamp and the thyristor; and a photosensitive resistor connected in series with the output terminal of the thyristor, the A photosensitive resistor is connected in series with the diode; the photosensitive resistor is connected in series with the resistor. 7. The photoresistor switch desk lamp according to claim 6, characterized in that: the model of the thyristor is MCR100-8. 8. The photoresistor switch table lamp according to claim 6, characterized in that: the model of the diode is IN4007. 9. The photoresistor switch desk lamp according to claim 6, characterized in that: the resistance value of the resistor is 800-1200 ohms. 10. The photoresistor switch table lamp according to claim 6, characterized in that: the model of the photoresistor is one of GL10516, GL10528, GL10537-1, GL10537-2.