CN201083380Y

CN201083380Y - Telephone desk lamp

Info

Publication number: CN201083380Y
Application number: CNU2006201684413U
Authority: CN
Inventors: 卢婷婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-21
Filing date: 2006-12-21
Publication date: 2008-07-09
Anticipated expiration: 2016-12-21

Abstract

A telephone table lamp consists of a table lamp, a telephone line interface, a power supply of 220V, a contact switch and an electronic control circuit. The electronic control circuit comprises a photo electric coupler IC, a DC voltage of 48V exists between a telephone outer line L1 and a telephone outer line L2, and a capacitor C1 arranged in series between the L1 and the L2 has a DC blocking and AC conducting function. During ringing, the outer line DC voltage of 48V is converted into a signal of 90V and 25HZ through an exchange of the telecommunication office, and the photo electric coupler IC actuates after the signal undergoes current limiting carried out by the capacitor C1 and a resistor R1. When V1 is conducted, a capacitor C2 is charged; when V2 is conducted, VS is controlled to be conducted and the table lamp is lighted. As the charge and discharge function of the capacitor C2 keeps V2 conducted for a period of time, the table lamp goes out after a time delay; if the table lamp goes out and a user still wants to use the lamp, the contact switch can be pressed to enable the capacitor C2 to be charged continuously and the telephone table lamp can be used as a table lamp. The telephone table lamp of the utility model is mainly applicable to household or other occasions requiring automatic illumination in case of an incoming call at night. The utility model has a size as small as a table lamp, very simple use, as well as easy manufacture and generalization.

Description

Telephone desk lamp

Technical field

The utility model relates to a kind of telephone desk lamp.

Background technology

Phone carries out ring by ringing signal, and reminds people has number to engage.When calling night, must not look for light switch earlier, answer the call again after turning on light owing to have lighting, people to answer the call, pretty troublesome.

Summary of the invention

The purpose of this utility model is to provide a kind of telephone desk lamp, does not have the inconvenience of illumination automatically to solve to call night.

The technical scheme that adopts:

Telephone desk lamp of the present utility model, by desk lamp, telephone line interface, the 220V power supply, contact-making switch and electronic control circuit are formed, telephone set and desk lamp are attempted by on the phone deconcentrator, and the desk lamp attaching plug connect the 220V AC power, electronic control circuit, comprise photoelectrical coupler IC, outside line L1, the 48V DC voltage is arranged between the L2, be serially connected with capacitor C 1 between L1 and the L2, have the logical communication function of stopping direct current, when the people made a phone call ring, outside line 48V DC voltage was exchanged into interchange 90V by the switch of telecommunication bureau, the 25HZ ringing signal, through capacitor C 1, photoelectrical coupler IC action after resistance R 1 current limliting, the V1 conducting is to capacitor C 2 chargings, V2 conducting, can control the VS conducting, desk lamp is bright.When picking up the telephone tin, ringing signal stops, and about 8～9V DC voltage is arranged between L1, the L2, luminous point coupler IC work, because capacitor C 2 effect of discharging and recharging is kept V2 conducting a period of time, lamp just time-delay extinguishes, wait extinguish after, if also want to use desk lamp, the controlled button of contact-making switch once continues to charge to C2, keep the V2 conducting, controlled VS conducting can be worked as desk lamp and be used.

The utility model telephone desk lamp is mainly used in family and other needs night and calls the place of illumination automatically, and its volume is little, and is equally big with desk lamp, uses very simply, and makes easily, is easy to promote.

Description of drawings

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

Fig. 2 is a wiring diagram of the present utility model.

Fig. 3 is a circuit diagram of the present utility model.

The specific embodiment

Telephone desk lamp of the present utility model, by desk lamp 1, telephone line interface 2, touch-switch 3 and electronic control circuit are formed, telephone set 4 and desk lamp 1 are attempted by on the phone deconcentrator 5, and desk lamp attaching plug 6 connect the 220V AC power, electronic control circuit, comprise photoelectrical coupler IC, outside line L1, the 48V DC voltage is arranged between the L2, be serially connected with capacitor C 1 between L1 and the L2, has the logical communication function of stopping direct current, when the people makes a phone call ring, outside line 48V DC voltage is exchanged into interchange 90V by the switch of telecommunication bureau, the 25HZ ringing signal is through capacitor C 1, photoelectrical coupler IC action after resistance R 1 current limliting, the V1 conducting is to capacitor C 2 chargings, the V2 conducting, can control the VS conducting, desk lamp is bright.When picking up the telephone tin, ringing signal stops, and about 8～9V DC voltage is arranged between L1, the L2, luminous point coupler IC work, because capacitor C 2 effect of discharging and recharging is kept V2 conducting a period of time, lamp just time-delay extinguishes, wait extinguish after, if also want to use desk lamp, the controlled button of contact-making switch once continues to charge to C2, keep the V2 conducting, controlled VS conducting can be worked as desk lamp and be used.

Claims

1. telephone desk lamp, by desk lamp, telephone line interface, 220V power supply, contact-making switch and electronic control circuit are formed, it is characterized in that described electronic control circuit, comprise photoelectrical coupler IC, the 48V DC voltage is arranged between outside line L1, the L2, be serially connected with capacitor C 1 between L1 and the L2; Described telephone set and desk lamp are attempted by on the phone deconcentrator, and the desk lamp attaching plug is connect the 220V AC power.