CN2155112Y

CN2155112Y - Multifunction telephone converter

Info

Publication number: CN2155112Y
Application number: CN 92232814
Authority: CN
Inventors: 张彭云; 方金安
Original assignee: KENTER COMMUNICATION ELECTRONIC INDUSTRIAL Co HUANGZHOU DEVELOPMENT ZONE; Beijing City Haidian District Yangfangdian Mayfong Telephone Converter Processing Department
Current assignee: KENTER COMMUNICATION ELECTRONIC INDUSTRIAL Co HUANGZHOU DEVELOPMENT ZONE; Beijing City Haidian District Yangfangdian Mayfong Telephone Converter Processing Department
Priority date: 1992-09-12
Filing date: 1992-09-12
Publication date: 1994-02-02
Anticipated expiration: 2002-09-12

Abstract

The utility model relates to a multifunction telephone converter, which comprises an active buzzer and two rectifier bridges; the first rectifier bridge in a circuit is connected with a buzzer and a switch without self-locking; the second rectifier bridge is connected with a unidirectional controlled silicon, a voltage-stabilizing diode and a light emitting diode. The converter is provided with functions of calling a nail machine, a three-party talking, changing and secreting, and has the advantages of small size, simple circuit, reliable performance, and convenient operation. The utility model is suitable for talk conversion of two telephones sharing one telephone number.

Description

Multifunction telephone converter

The utility model belongs to a kind of babyphone conversion equipment.

Along with the development of telephonic communication cause, current phone installed capacity still can not be satisfied user's needs, and the phenomenon of No. one two machine is also very general, and therefore, the user is badly in need of some babyphone transducers.Existing phone transducer has two types.A kind of can the automatic switchover, but can not call out, intercommunication, make troubles and financial burden to the user easily.The another kind of manual switchover form that adopts, phone has the branch of major and minor machine, has calling, intercommunication function, but does not have function of keeping secret, and main frame can arbitrarily be eavesdropped the speech of secondary machine.And because of adopting integrated circuit, cost is higher, and position switch is more, complex operation, and failure rate is higher.

The purpose of this utility model provides a kind of improved phone transducer, makes that it has calling, tripartite intercommunication, switching simultaneously, the multiple function of maintaining secrecy, and it is little to have a volume, and circuit is simple, dependable performance, convenience operation.

Multi-function telephones transducer of the present utility model comprises rectifier switch circuit, assignment key, it is characterized in that: its circuit is provided with active buzzer, and the rectifier switch circuit includes two rectifier bridges;

Electrochemical capacitor C ₁In parallel with active buzzer F, be connected on by D ₁, D ₂, D ₃, D ₄On first rectifier bridge of forming, self-lock switch K and telephone set join by connecing not;

One-way SCR CR is serially connected in light-emitting diode E and resistance R ₁On the parallel circuits; R ₂, C ₂Be connected on after the parallel connection between the control utmost point and negative electrode of CR, simultaneously with W, R ₂Serial connection, E, R ₁Negative electrode and R with W and CR ₂, C ₂Join with the dc terminal of rectifier bridge, telephone set one terminates at by D ₅, D ₆, D ₇, D ₈On second rectifier bridge forming, the other end is connected in the outside line.

When outside line fashionable, first, second phone is jingle bell simultaneously, corresponding indicator light is bright, the conversation of first machine, the automatic segment of second machine.The second machine can not be heard the dialog context of first machine.First (second) machine can be called out first (second) machine by " assignment key ".

When first, second machine both sides pressed " assignment key " simultaneously, not only both sides can talk, and simultaneously, first, second and outside line can be realized tripartite intercommunication.

When not having phone fashionable, both Parties also can be pressed " assignment key " simultaneously, realize both sides' conversation.

Mode of connection: a multi-function telephones transducer respectively is installed on first, second telephone set, is not had the branch of major and minor machine.As shown in Figure 1, the

terminals

1 and 1,2 and 2,3 of both Parties are docked

terminals

4,5 machine of answering the call respectively with 3.

Fig. 1 is an installation wiring schematic diagram of the present utility model.

Fig. 2 is the circuit theory diagrams of the utility model one-to-many functional telephone transducer.

As shown in the figure, the electrochemical capacitor C of multi-function telephones transducer ₁In parallel with active buzzer F, be connected on by D ₁, D ₂, D ₃, D ₄On first rectifier bridge of forming, by self-lock switch K and telephone set do not join;

Claims

1, a kind of multi-function telephones transducer comprises rectifier switch circuit, assignment key, it is characterized in that: its circuit is provided with active buzzer, and the rectifier switch circuit includes two rectifier bridges;

Electrochemical capacitor C ₁In parallel with active buzzer F, be connected on by D ₁, D ₂, D ₃, D ₄On first rectifier bridge of forming, by self-lock switch K and telephone set do not join;

One-way SCR CR is serially connected in light-emitting diode E and resistance R ₁On the parallel circuits; R ₂, C ₂Be connected on after the parallel connection between the control utmost point and negative electrode of CR, simultaneously with W, R ₃Serial connection, E, R ₁Negative electrode and R with W and CR ₂, C ₂Join with the dc terminal of rectifier bridge, telephone set one terminates at by D ₅, D ₆, D ₇, D ₈On second rectifier bridge forming, the other end is connected in the outside line.