CN2224491Y

CN2224491Y - Telephone coupling adapter

Info

Publication number: CN2224491Y
Application number: CN 94246824
Authority: CN
Inventors: 苏重清
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-30
Filing date: 1994-11-30
Publication date: 1996-04-10
Anticipated expiration: 2004-11-30

Abstract

The utility model relates to a telephone coupling adapter, which is used between two telephone service entrances and can communicate with the third person via transition. The position between two telephone service entrances is coupled with the transformer T of voice electrical signals. One winding (3, 4) is connected in series with a switch K, and the other winding (1, 2) is connected in series with a reverse diode. When the switch K is closed, the winding on the side can be taken as short circuit and the alternating current impedance of the other winding can be lower. Two telephones have the same figure before the two telephones are not provided with the device. When the switch is opened, the voice electrical signals can be coupled with each other. The utility model can communicate with the third person via transition.

Description

Phone coupling adapter

The utility model relates to a kind of phone coupling adapter that can converse to the third party in strange land in two telephone boothes.

Along with opening and enlivening, very universal as the phone of communication and information transmission, there are many traders and office all to have two above phones.When answering the call, the people that the other side will look for and at different place, the relevant matters that perhaps relate in dialogue will be conferred with the leader in the elsewhere, as essential, should not postpone, need to determine at that time, at this moment the listener uses third party's dialogue in two receivers fastenings and other places with other closing of the circuit, be affected but transmit sound between this, can not hear clearly; The called party should not therefrom chip in simultaneously, influences communication effect.

It is not enough that the purpose of this utility model is to avoid in the above-mentioned prior art, but and a kind of phone coupling adapter that can talk with simultaneously in two telephone booth transfers and three is provided, can improve the result of use of phone.

The purpose of this utility model can reach by the following technical programs: can connect the voice coupling transformer between two radio station phone house lead in; Paralleling switch on a winding is on another winding and a di-reverse clipping diode.Adopt coupling transformer can realize transfer and Three-Way Calling effectively with the voice telecommunication number coupling mutually of two phones.

Can between above-mentioned two phone house lead in, connect the shell body of coupler, two phones be arranged on the housing, connect coupling transformer into and out of between the binding post at one into and out of binding post; The iron core of transformer can adopt the iron core of the wireless input transformer of similar small semiconductor; Two windings can with diameter be 0.08 millimeter enamelled wire respectively around 500 circles, and each winding of mark end at the whole story.Two backward diodes can adopt light-emitting diode.For the polarity of clear and definite binding post, between output wiring terminal, respectively connect a light-emitting diode, resistance of a diode and a nothing lock push-button switch.

The utility model is compared with above-mentioned prior art has following effect: adopt the coupling adapter between two phone house lead in, can realize the transfer phone, also can realize tripartite dialogue, promptly send out, the third party of recipient and transfer talks with simultaneously, help information transmission speed, can improve the result of use of phone.

Fig. 1 is the utility model structure chart;

Fig. 2 is Fig. 1 housing S figure.

Below in conjunction with accompanying drawing will the utility model is described in further detail:

By shown in Figure 1, between two phone house lead in, meet voice telecommunication coupling transformer T, promptly on one of phone house lead in and one of another phone house lead in, be connected coupling transformer T, at transformer T one winding (3,4) go up paralleling switch K, another winding (1,2) is gone up amplitude limit backward diode in parallel.

For easy to use, can on two phone house lead in, connect a housing S, can be square casing, the side of housing S has two phone house lead in binding posts (A, B; E F) and with phone (binding post box) joins goes out binding post (C, D; G, H), at the one of two phones into and out of binding post (B, D; E, indirect coupling G) becomes closes transformer T.The iron core of transformer T can adopt the iron core of the wireless input transformer of similar small semiconductor, and two windings can be 0.08 millimeter enamelled wire with diameter on the iron core, and each winding can respectively be 500 circles around the identical number of turn; Initiating terminal is (1,4), and the end end is (2,3).For the backward diode that reaches the parallel connection of amplitude limit purpose can adopt two light-emitting diodes (LED1, LED2); If adopt the forward and reverse need of general-purpose diode more than two, adopt light-emitting diode to be advisable.For the positive and negative polarity of clear and definite binding post, output connection (post) (C, D) and (G, H) go up each parallel connection by light-emitting diode (LED3, LED4), diode (D1, D2), resistance (R1, R2) and do not have a house lead in polarity indicating circuit that lock push-button switch AN forms.Wherein (D1's diode D2) shields, and can adopt 1N4004; (R1 R2) plays metering function to resistance, and resistance respectively is 20 kilohms.

This coupling adapter is with after the phone house lead in is connected, press switch AN light-emitting diode (LED3, LED4) should the while bright or do not work simultaneously, magnetic saturation does not take place with the iron core of assurance coupling transformer T; If these two light-emitting diodes one bright one go out, connect again after two the end of a thread of a pair of house lead in are exchanged and get final product.

Claims

1. phone coupling adapter, it constitutes between two phone house lead in, it is characterized in that: connect coupling transformer (T) between two phone house lead in, at a winding (3,4) go up paralleling switch (K), another winding (1,2) is gone up backward diode in parallel.

2. telephone coupler according to claim 1 is characterized in that: can connect a housing (S) on two phone house lead in, two phones be arranged into and out of binding post (A, B, C, D on the housing (S); E, F, G, H), at two phone one into and out of binding post (B, D; E connects coupling transformer (T) between G).

3. telephone coupler according to claim 1 and 2 is characterized in that: the iron core of transformer (T) can adopt the iron core of the wireless input transformer of similar small semiconductor, and two winding wires can be that 0.08 millimeter enamelled wire is respectively around 500 circles with diameter, initiating terminal (1,4), end end (2,3).

4. telephone coupler according to claim 1 is characterized in that: coupling transformer (T) into and out of wiring (post) (B, D; E, G) with another of this phone into and out of wiring (post) (A, C; F, H) between each light-emitting diode in parallel (LED3, IED4), diode (D1, D2) and resistance (R1, R2) and do not have lock push-button switch (AN) and form house lead in polarity indicating circuit.