CN203490472U - LED clock desk lamp - Google Patents

Abstract

The utility model provides an LED clock desk lamp. The desk lamp comprises a lampshade, a bulb and a base box. The bulb is connected to the base box by a fixing ring and a support rod. The desk lamp is characterized in that an LED clock is arranged on a side face of the base box; and the base box is internally provided with a circuit board for driving the LED clock, the circuit board including a direct-current power supply, a constant current source circuit, a PWM circuit and a variable potentiometer, wherein the directly-current power supply and the constant current source circuit are connected to the LED clock, and the direct-current power supply, the PWM circuit and the variable potentiometer are connected to the constant current source circuit. The beneficial effects of the utility model are that the LED clock which can indicate the time, temperature and date is combined with a desk lamp, so that people can clearly see the content displayed at all times of day or night.

Description

A kind of LED clock and watch desk lamp

Technical field

The utility model relates to desk lamp field, relates in particular to a kind of LED clock and watch desk lamp.

Background technology

The desk lamp occurring is in the market varied, and personalized function is also more and more, for example, clock and watch are set on desk lamp, but the clock and watch that arrange on desk lamp mostly can only see by day, to night under dark state, just cannot see the time on clock and watch clearly.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model proposes a kind of LED clock and watch desk lamp.

The technical solution adopted in the utility model is as follows:

A LED clock and watch desk lamp, comprises lampshade, bulb and base cabinet, and described bulb is connected on described base cabinet by retainer plate and support bar, it is characterized in that: on a side of described base cabinet, be provided with LED clock and watch; In described base cabinet inside, be provided with for driving the circuit board of described LED clock and watch, described circuit board comprises direct supply, constant-current source circuit, pwm circuit and variable potentiometer, wherein said direct supply and described constant-current source circuit are connected to described LED clock and watch, and described direct supply, pwm circuit and variable potentiometer are connected and are all connected to described constant-current source circuit.

No matter by day or can see shown content clearly night the beneficial effects of the utility model have been to combine on desk lamp can displaying time, temperature and the LED clock and watch on date, make people.

Accompanying drawing explanation

Fig. 1 is structure explosive view of the present utility model.

Fig. 2 is circuit structure diagram of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described further.

As shown in Figure 1, LED clock and watch desk lamp of the present utility model, comprise lampshade 1, bulb 2 and base cabinet 3, described bulb is connected on described base cabinet 3 by retainer plate 4 and support bar 5, on a side of described base cabinet 3, be provided with LED clock and watch 6, in described base cabinet 3 inside, be provided with for driving the circuit board 7 of described LED clock and watch 6.

As shown in Figure 2, described circuit board 7 comprises direct supply, constant-current source circuit, pwm circuit and variable potentiometer, wherein said direct supply and described constant-current source circuit are connected to described LED clock and watch, and described direct supply, pwm circuit and variable potentiometer are connected and are all connected to described constant-current source circuit.

Wherein, direct supply is divided into two-way output, and a road is connected with constant-current source circuit, and another road is connected with LED lamp two ends, and constant-current source circuit is connected with LED clock and watch 6 simultaneously, forms closed power control loop.

The displaying contents of described LED clock and watch 6 is time, temperature and date.

Finally it should be noted that above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment; those of ordinary skill in the field are to be understood that; still can modify or part technical characterictic is equal to and replaces and do not depart from the spirit of technical solutions of the utility model embodiment of the present utility model, it all should be contained in the middle of the technical scheme scope that the utility model asks for protection.

Claims (1)

1. a LED clock and watch desk lamp, comprises lampshade, bulb and base cabinet, and described bulb is connected on described base cabinet by retainer plate and support bar, it is characterized in that: on a side of described base cabinet, be provided with LED clock and watch; In described base cabinet inside, be provided with for driving the circuit board of described LED clock and watch, described circuit board comprises direct supply, constant-current source circuit, pwm circuit and variable potentiometer, wherein said direct supply and described constant-current source circuit are connected to described LED clock and watch, and described direct supply, pwm circuit and variable potentiometer are all connected to described constant-current source circuit.

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