CN2074957U - Universal parallel telephone automatic converting calling device - Google Patents

Abstract

The utility model discloses an automatic converting calling device of a universal parallel telephone, which is suitable for being used in a telephone network with optional systems and restoration controlling systems and can mutually transmit the secondary bell signals. Compared with the prior art of CN88208231.0, the brake pulling circuit of the structure of the relay of the traditional design is changed, choke rings with huge quantity of electric inductance are canceled, and the new design of the lines are made. Two convertors which are assembled by the same lines and components are respectively connected in series with an A branch and a B branch. The calling device is composed of a voltage detecting part, a door controlling part, a bell voltage generating and controlling part, an electrical bell, an electrical switch part, loudspeakers, calling buttons, and calling lamps.

Description

Universal parallel telephone automatic converting calling device

The utility model relates to a kind of subscriber equipment of telephone communication, more precisely a kind of extension set of collinear bridging set conversion calling device.

Chinese patent CN88208231.0 " the Call Transfer device of automatic telephone in parallel ", separate except possessing, do not disturb mutually, the characteristics easy for installation, also have the characteristics that extension set in parallel is just being paid each other.Have first, second extension set collinear, jack per line and all can transmit the recall bell signal mutually, and, make calling party and desirable callee set up conversation with the glittering supervision of assignment lamp by calling button separately.Though this patented technology is maintained secrecy, is not disturbed mutually than only finishing mutually, can not secondary call signal diverting call or only can go a step further before the prior art by fixing side's diverting call, but only be confined in the calling party restores the telephone network of control, use.Owing to calledly must hang up earlier when secondary call signal diverting call, the calling party can not hear ring again, the calling party is produced misunderstandings and in advance phone is hung up.In its line construction, it is the choking coil of 5 henries that there are relay and inductance value in the unit that operates a switch automatically, makes power consumption big in addition, and volume is big, and contact shortcoming such as unreliable is arranged.

One of the purpose of this utility model is the conversion calling set of a kind of universal phone in parallel of design, promptly various different release controls comprise caller control, called control and the telephone network do not controlled mutually in all can use.When called secondary call signal diverting call, the calling party can hear ring back tone, and relieved wait.Two of the purpose of this utility model is relays in the cancellation traditional design in line design, and the choking coil of cancellation big inductance quantity, has therefore just had to be compared with the prior art diverse line design.

This calling set is the capsule that two volumes are about 1/4 ordinary telephone set, and each is assembled by identical circuit, element, is serially connected in respectively between telephone loop and jack per line first, second telephone set.This line construction comprises that electronic switch, ringing voltage are controlled, electronic bell, control gate, five parts of voltage detecting.Other has a toy trumpet, the button of conversion calling and the assignment lamp of glittering supervision.

The electronic switch that plays automatic conversion and control effect is serially connected between telephone loop a or b and telephone set, is connected into bridge circuit by controllable silicon, voltage-stabiliser tube, diode.When having a side to give orders or instructions earlier in the extension set in parallel or being talked about off-hook earlier, controllable silicon triggering and conducting in we's electronic switch, telephone loop a, b voltage are program control by 48V()-60V(electromechanics) reduce to below the 15V, controllable silicon in the opposing party's electronic switch is not owing to can be triggered, and can not give orders or instructions or be talked about, both sides' phone in parallel is maintained secrecy mutually, is not disturbed mutually.

When calling out, calling terminal is pressed the calling button, and in ringing voltage generation control unit line attachment, subscribers feeder a, b have a fixed potential such as 24V.Calling terminal all detects this current potential with the voltage detection unit that is connected across on a, the b line of being called out end, opens control gate separately, connects the electronic bell power supply.Electronic bell makes toy trumpet send the ring up sound by miniature transformer.Calling terminal, quilt are called out end and calling terminal all can be heard this bell sound, and be glittering with the assignment lamp that loudspeaker, calling button are connected in series.Control gate is sent and is controlled signal to electronic switch simultaneously.After being called out the end off-hook, subscribers feeder a, b voltage drop to again below the 15V, and calling terminal closes control gate after detecting with the voltage detection unit of being called out end, and electronic bell is disconnected.The calling terminal electronic switch turn-offs, and is called out end and calling terminal normal talking.The utility model is by line design, and the potential change on control telephone loop a, the b again by voltage detecting and discriminating, is finished extension set in parallel and all can freely be breathed out, and maintains secrecy non-interfering function mutually; When conversion was called out, calling terminal had bell sound, assignment lamp to monitor that calling terminal is called out end with quilt also all the bell sound.Called out after end replys, both sides' the tinkle of bells stops, and the calling terminal assignment lamp goes out, and cuts off the phone of calling terminal and calling terminal automatically, connects to be called out and holds and calling terminal.This voltage control, detection, discriminating, the line work principle of control again, make the utility model be applicable to any standard comprise stepping, in length and breadth, program control and any release control comprise caller, called, mutually not in the telephone network of control mode.

Describe enforcement of the present utility model in detail below in conjunction with accompanying drawing.

Accompanying drawing 1. bridging sets are connected with automatic conversion calling set

Accompanying drawing 2. is the shape assumption diagram of conversion calling set automatically

Accompanying drawing 3. is conversion calling set electricity theory diagram automatically

Accompanying drawing 4. is conversion calling set element, circuit connection diagram automatically

Accompanying drawing 1 shows bridging set and changes being connected of calling set automatically.First, the second of jack per line phone in parallel respectively uses a conversion calling set automatically, and each calling set has 4 exit A, B, C, D.A, B fetch subscribers feeder a, the b from telephone exchange, C, the D machine of answering the call.Use if existing first, second phone is in parallel, then only need calling set is sealed in the former phone circuit simply, installation connects very convenient.

Accompanying drawing 2 shows the contour structures of automatic conversion calling set.Be welded with all electric elements such as resistance capacitance two, triode on the printed circuit board (PCB) in the calling set capsule, A, B, C, D exit are arranged for connecting on the rear board, assignment lamp 3 is installed on the front panel 1 of box and is called out button 2, the aperture that is arranged in garden shape on the panel is convenient to tucket and is spread out of outside the box, and the volume of capsule is about 1/4 of common phone.

Accompanying drawing 3 shows the electric theory diagram of automatic conversion calling set.Electronic switch is serially connected between subscribers feeder (a or b) and phone, during user's off-hook, opens electronic switch.Voltage detection unit is connected across between subscribers feeder a, b.Electronic bell, the control gate of serial connection also are connected across between subscribers feeder a, b.Voltage detection unit detects a, b line voltage, exports control gate to, the control electronic bell.As a, when b line voltage is lower than a certain value,, close electronic bell through voltage detecting, control gate.When the position of calling out button when 2 change into 1, originally, caused a, b line change in voltage, through voltage detecting, control gate by in the general structure of the ringing voltage generation control unit line attachment of short circuit, open electronic bell, the control signal that the while control gate is sent is opened electronic switch.Also be attempted by between subscribers feeder a, b after loudspeaker, assignment lamp, the calling button serial connection.

The enforcement that accompanying drawing 4 shows automatic conversion calling set element, circuit connects.Diode D ₁-D ₄Be connected into bridge circuit and triode T ₁, T ₂Deng composition voltage detecting and control gate.T ₁Voltage-stabiliser tube DW in the base loop ₁The voltage stabilizing value is designed to 27-30V, T ₂Voltage-stabiliser tube DW in the base loop ₂The voltage stabilizing value be designed to 18-21V.Therefore control the upper lower limit value of control gate switch, can be by selecting the voltage stabilizing value levelling of voltage-stabiliser tube.In the present embodiment, as a, when b voltage is 48-60V (hook state), T ₁Conducting, T ₂End.As a, when b voltage is 24V (diverting call ringing condition), T ₁End T ₂Conducting.As a, when b voltage is lower than 15V (off hook state), T ₁, T ₂All end.Triode T ₃, T ₄Deng forming multivibrator, because T ₃Collector resistance (30K) is greater than T ₄Collector resistance (2K), so T ₄The conducting electric current is greater than T ₃, electronic bell is produced intermittently, promptly the failure of oscillation duration is short during ring, is clamped on ringing condition to prevent circuit.Has only the triode T in control gate ₂During conducting, electronic bell could be exported bell signal.The photoelectrical coupler T that is connected in series with electronic bell among the figure ₅Effect be when electronic bell is worked output control signal open electronic switch.

By diode D ₅-D ₈, controllable silicon 3CT, voltage-stabiliser tube DW ₃(24-30V) grade is connected into bridge circuit composition electronic switch, is serially connected in a subscribers feeder a or the b.When side user's off-hook, the controlled triggering of the controllable silicon in the electronic switch, a, b line voltage are lower than 15V.As photoelectrical coupler T ₅During conducting, voltage-stabiliser tube DW ₃By short circuit, can make the controlled triggering of controllable silicon in the electronic switch.

Ringing voltage generation control unit is by diode D ₁₄-D ₁₇And voltage-stabiliser tube DW ₄(18V) be connected into bridge circuit, be serially connected between another subscribers feeder b or a and phone.When the calling button was in 2 position, this structure was by short circuit.When calling party will be called out button and be beaten position 1, this bridge circuit of access caused a, b line change in voltage, as is 24V, T in voltage detecting, the control gate ₂Conducting causes electronic bell and passes through photoelectrical coupler T ₅With voltage-stabiliser tube DW ₃Short circuit is called out the controllable silicon 3CT of end and trigger, and makes subscribers feeder a, b and called out the end phone to connect.

By diode D ₉-D ₁₂And luminous tube D ₁₃The bridge circuit of forming is connected across the substation end with toy trumpet, calling button after being connected in series.When the calling button was in 1 position, luminous tube was that assignment lamp is glittering, and after quilt was called out the end off-hook, assignment lamp extinguished thereupon, can be used for monitoring and was called out end.

During the design of this calling set conducting transmission line, employed 4 bridge circuits, its role is to make calling set and being connected of user a, b line can be arbitrarily, promptly A, B end points can be connected with a, b line arbitrarily.

The utility model and prior art CN88208231.0 compare, and except aforesaid characteristics, more can be accepted by the user when connection is installed.

Claims (6)

1, a kind of conversion calling device of collinear, jack per line bridging telephone extension set of telephone communication, comprise by calling terminal and call out the calling button of being called out end and monitor the assignment lamp of being called out end, it is characterized in that having the voltage detection unit that is connected across subscribers feeder two ends detection subscribers feeder voltage; The output signal of control gate acceptance from voltage detection unit arranged, the open and close of the electronic bell that control is connected in series with it; Have electronic switch to finish subscribers feeder and be connected with the conversion of extension, be serially connected between a subscriber lines and extension, electronic switch is also accepted the open and close signal from control gate; There is ringing voltage generation control unit to be serially connected between another subscriber lines and extension, called out button control and insert; Loudspeaker, assignment lamp and be attempted by the subscriber phone end after the calling button is connected in series.

2, the conversion calling device of collinear, jack per line bridging telephone extension set according to claim 1, it is characterized in that triode that described voltage detecting, control gate are joined by a diode bridge and two collector electrode one base stages is formed, the upper limit value and lower limit value that control gate opens or closes is respectively by the voltage stabilizing value levelling that is serially connected in the voltage-stabiliser tube in the transistor base loop.

3, the conversion calling device of collinear, jack per line bridging telephone extension set according to claim 1 and 2, it is characterized in that also comprising a multivibrator of forming by two triodes in described voltage detecting, the control gate short, failure of oscillation duration when having the transistor collector resistance control electronic bell ring of different value.

4, the conversion calling device of collinear, jack per line bridging telephone extension set according to claim 1 is characterized in that described electronic switch is a bridge circuit of being made up of diode, voltage-stabiliser tube, controllable silicon.

5, the conversion calling device of collinear, jack per line bridging telephone extension set according to claim 1 and 2 is characterized in that also comprising in described voltage detecting, the control gate photoelectrical coupler, and its output is attempted by electronics and voltage-stabiliser tube two ends, the Central Shanxi Plain.

6, the conversion calling device of collinear, jack per line bridging telephone extension set according to claim 1 is characterized in that this calling device is serially connected between telephone loop and extension.

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