CN2508476Y

CN2508476Y - Multi-line switching device for telephone

Info

Publication number: CN2508476Y
Application number: CN 01241973
Authority: CN
Inventors: 陈争生
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-17
Filing date: 2001-08-11
Publication date: 2002-08-28
Anticipated expiration: 2011-08-11

Abstract

The utility model relates to a telephone technology field. The utility model discloses a device which overcomes the deficiency of the existing telephone, thereby leading a plurality of telephone lines to be switched on one telephone to communicating. The multi-line switching device comprises a line switching device and a ringing indicating circuit, a plurality of the telephone lines are connected with the communication dialing circuit of the telephone through the line switching device by the method of choosing one from a plurality of the telephone lines, moreover, a plurality of the telephone lines are respectively connected with the ringing indicating circuit. The utility model has the advantages that users can communicate with a plurality of telephones by using one telephone, and the device is convenient and practical.

Description

A kind of telephone set multi-line conversion equipment

Technical field

The claimed affiliated technical field of technical scheme of the utility model is that a kind of line transfer with different telephone numbers is can be at the device of an enterprising row communication of telephone set.

Background technology

Along with popularizing of phone, the telephone line of user's use is also increasing, particularly because the increasing of telco provider, the user adapts to the service quality according to telco provider day by day, scope, factors such as price select to use different telephone numbers to carry out communication, therefore a user uses the phenomenon on multiple phone line road more and more in same place, but existing telephone set all is a circuit connects a telephone set, the phenomenon of therefore putting the multi-section phone on a desk is of common occurrence, they have occupied the large stretch of area of desk, and telephone wire is persistant easily, sometimes the ring of phone is identical, do not know that circuit squeezes into, often the misconnection phone causes desktop in utter disorder, has a strong impact on office efficiency.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of deficiency that overcomes the existing telephone machine, makes the device of multiple phone line road conversion at an enterprising row communication of telephone set.

The scheme of the utility model technical solution problem is: telephone set multi-line conversion equipment is made up of Circuit Switching Unit and ring indicating circuit, the multiplex telephony circuit is connected with the conversation dial-up circuit of telephone set through the mode of Circuit Switching Unit with multiselect one, in addition, the multiplex telephony circuit connects the ring indicating circuit respectively.

Described Circuit Switching Unit is formed by detecting ringing circuit, key control circuit and switch, switch one side connects the multiplex telephony circuit, opposite side is connected with conversation dial-up circuit in the telephone set, the multiplex telephony circuit is also distinguished the joint detection ringing circuit, detects ringing circuit and key control circuit generation control signal and exports to switch to control its work.

The working power of described Circuit Switching Unit adopts the working power of telephone line.

When key control circuit does not produce when output control, the conversation dial-up circuit all the time with multiplex telephony circuit a road being connected wherein.

Described ring indicating circuit utilizes the ring indicating circuit of telephone set itself.

Described detection ringing circuit adopts optocoupler circuit.

Include the conversation holding circuit in the described switch, the conversation holding circuit adopts photoelectrical coupler to detect audio-frequency current.

Include the conversation interlock circuit in the described switch, the conversation interlock circuit adopts photoelectrical coupler to detect audio-frequency current.

According to above-mentioned technical scheme, the utility model has possessed following beneficial effect: 1) the utility model can make a telephone set insert plural telephone line to carry out communication, make desk tops clean and tidy, and saves the multi-section telephone set.2) the utlity model has the incoming call automatic switching function, need not user's manual switchover select, thus very easy to use.3) the utlity model has the structure that circuit is given tacit consent to, the user can use familiar telephone number or most economical telco provider easily always like this.4) the utility model can directly utilize telephone line voltage to carry out work, dispense with outer connecting power, thereby reduce equipment cost, save cost of use.

Description of drawings Fig. 1 is the utility model structure principle chart.Fig. 2 is a ring indicating circuit schematic diagram in the utility model.Fig. 3, Fig. 4 are the circuit diagrams of two embodiment of Circuit Switching Unit in the utility model.

Embodiment

Fig. 1 is the utility model structure principle chart.

As shown in Figure 1, telephone set multi-line conversion equipment is made up of Circuit Switching Unit 1 and ring indicating circuit 2, the multiplex telephony circuit is connected with the conversation dial-up circuit 3 of telephone set through the mode of Circuit Switching Unit 1 with multiselect one, and in addition, the multiplex telephony circuit connects ring indicating circuit 2 respectively.

Described Circuit Switching Unit 1 is formed by detecting ringing circuit 4, key control circuit 5 and switch 6, switch 6 one sides connect the multiplex telephony circuit, opposite side is connected with conversation dial-up circuit in the telephone set, the multiplex telephony circuit is also distinguished joint detection ringing circuit 4, and detection ringing circuit 4 and key control circuit 5 produce control signals and export to switch 6 to control its work.

The working power of Circuit Switching Unit 1 can adopt the working power of telephone line.

When key control circuit 5 does not produce when output control, the conversation dial-up circuit all the time with multiplex telephony circuit a road being connected wherein.This circuit is promptly as the acquiescence circuit.

Described ring indicating circuit 2 can utilize the ring indicating circuit of telephone set itself.

Described detection ringing circuit 4 adopts optocoupler circuit.

Conversation holding circuit in the described switch 6 adopts photoelectrical coupler to detect audio-frequency current.

Conversation interlock circuit in the described switch 6 adopts photoelectrical coupler to detect audio-frequency current.

Fig. 2 is a ring indicating circuit schematic diagram.

As shown in Figure 2, (is example with the double-circuit telephone set) imports the L expansion with single line is double-circuit input L1, L2, owing to be the double-circuit input, so increased step-down, the rectifier cell in a cover ring loop, and increased ring line drop DE separately, by the circuit of LED indication incoming call.Since rectification every straight effect, they can shared ring sound circuit (can certainly separately to produce different sound).When supposing arbitrary circuit such as L1 incoming call, produce ring sound by ring loop 1, its ringing current makes LED1 luminous to indicate circuit 1 that the phone incoming call is arranged, the user is switched just can normally receive calls when transposition ZH switch places circuit L1 position (when the circuit commutation circuit was designed to automatically switch, the user just can directly receive calls) with circuit.Because the relation between each circuit of ring part is the relation of logic OR (OR), when arbitrary line work, it is still to produce ring and the indication of incoming call circuit (can the sound of this ring be diminished or change by the interlocking design) that other circuit incoming call is arranged.More than two circuits inputs, just increase the switching way of ZH and step-down, rectification and the indicator elment in ring loop.

Described ring indicating circuit also can utilize the ring indicating circuit of telephone set itself and not be provided with separately in addition.

Fig. 3 is the circuit diagram of an embodiment of Circuit Switching Unit in the utility model.

As shown in Figure 3, working power adopts the working power of telephone line, L11, L12 and L21, L22 two-way outside line input, and ZL1, ZL2 are the incoming call ringing circuit of circuit separately.TL is common universal telephone machine circuit, L, L ' is the circuit input (being equivalent to the outside line input) of TL, by circuit commutation circuit and the circuit L11 that connects, L12 and L21, switch between L22, now with circuit L11, the incoming call of L12 incoming call is that example illustrates its operation principle: work as L11, during the ring of L12 incoming call, ZL1 ringring prompting incoming information, simultaneously, ringing current passes through VC13 (through C13, R16 is every the pressure that lands vertically) photoelectrical coupler T12 is worked, T12 is exactly the photoelectrical coupler that detects ringing circuit, through D11, R12 makes the V12 conducting, the V11 conducting, outside line L11, L12 passes through T11 after bridge rectifier VC11 isolates, R13, V11 and L (input of TL circuit) constitute loop, outside line L11, L12 automatically switches to TL through V11.Photoelectrical coupler T11, R13 constitute this loop works current sampler, during this line work, operating current makes T11 work, and the phototriode conducting is to safeguard triode V12 conducting, and the V11 conducting also keeps this circuit in running order, T11 promptly converses and detects the photoelectrical coupler of audio-frequency current in the holding circuit, end of conversation, handle put down the current vanishes of back owing to this circuit Shen, and T11 no longer works, V12, V11 end, and this circuit is deactivated automatically.The effect of button S1 is that TL presses S1 when getting phone and is used for selecting this circuit in running order.The operation principle of circuit L21, L22 is identical with L11, L12.Here need to prove: more than two tunnel outside lines when above, the switching way of this circuit of increase of symmetry just.

Fig. 4 is the circuit diagram of another embodiment of Circuit Switching Unit in the utility model.

As shown in Figure 4, L11, L12 and L21, L22 are two tunnel outside lines inputs, TL is a known complete telephone set network, L, L, circuit input (being equivalent to the outside line input) for TL, it switches to different outer circuit L11, L12 and L21, L22 by relay K, the normally-closed contact of relay K is connected on L11, the L12, TL can carry out incoming call or exhalation by normally-closed contact, that is, when relay K was not received the control signal of button S, the dial-up circuit of just will conversing was connected with circuit L11 all the time, at this moment, L11 gives tacit consent to talk line exactly.When circuit L21, L22 send a telegram here, rely on detectable voltage signals by rectification circuit VC2 (R6, C5 step-down, rectification), make triode V conducting, relay K adhesive through D2, R4, R3, TL switches to L21, L22 circuit by relay K, and the cleaner handgrip that picks up the telephone just can be conversed.VC1, R1, R2, T1 is that the diode section of photoelectrical coupler constitutes circuit L21, (resistance of R2 is less for the current sampling part of L22, R1, the rational proportion of R2 makes that T1 is working properly), when user's communication, circuit L21, the operating current of L22 makes photoelectrical coupler T1 work, with the high potential of safeguarding that B is ordered, make triode V continue conducting, relay K keeps adhesive, T1 promptly to converse detecting the photoelectrical coupler of audio-frequency current in the holding circuit, work as talk-through, after the user puts down handle, circuit L21, just no longer include operating current among the L22, T1 quits work, and B point current potential drops to V3 to be ended, relay K discharges, TL just automatically switches to (circuit L11 on the normally-closed contact, L12), the effect of button S is to be used for selecting outbound calling circuit L21, L22 presses the S button, make the V conducting, the relay K adhesive.Capacitor C 2, C3 act on when playing the filtering court of a feudal ruler.In side circuit, also can select for use integrated circuit to constitute the time-delay drive controlling of triode V.Photoelectrical coupler T2 is current sampling circuit VC3, the R5 driving by circuit L11, L12, its effect is: when circuit L11, L12 are conversing, line current makes the T2 conducting, clamper A level point is a low level, avoiding at this moment circuit L21, L22 incoming call voltage signal trigger relay K adhesive, thereby cause line transfer.As seen, T2 promptly converses and is used to detect the photoelectrical coupler of audio-frequency current in the interlock circuit.Many circuits (two) input is as long as increase the way of circuit switched.

Claims

1, a kind of telephone set multi-line conversion equipment, form by Circuit Switching Unit [1] and ring indicating circuit [2], it is characterized in that: the multiplex telephony circuit is connected with the conversation dial-up circuit [3] of telephone set through the mode of Circuit Switching Unit [1] with multiselect one, in addition, the multiplex telephony circuit connects ring indicating circuit [2] respectively.

2, telephone set multi-line conversion equipment according to claim 1, it is characterized in that: described Circuit Switching Unit [1] is formed by detecting ringing circuit [4], key control circuit [5] and switch [6], switch [6] one sides connect the multiplex telephony circuit, opposite side is connected with conversation dial-up circuit in the telephone set, the multiplex telephony circuit is also distinguished joint detection ringing circuit [4], detects ringing circuit [4] and key control circuit [5] generation control signal and exports to switch [6] to control its work.

3, telephone set multi-line conversion equipment according to claim 1 and 2 is characterized in that: the working power of described Circuit Switching Unit [1] adopts the working power of telephone line.

4, telephone set multi-line conversion equipment according to claim 2 is characterized in that: when key control circuit [5] does not produce when output control, the conversation dial-up circuit all the time with multiplex telephony circuit a road being connected wherein.

5, telephone set multi-line conversion equipment according to claim 1 and 2, it is characterized in that: described ring indicating circuit [2] utilizes the ring indicating circuit of telephone set itself.

6, telephone set multi-line conversion equipment according to claim 2 is characterized in that: described detection ringing circuit [4] adopts optocoupler circuit.

7, telephone set multi-line conversion equipment according to claim 2, it is characterized in that: described switch includes the conversation holding circuit in [6], and the conversation holding circuit adopts photoelectrical coupler to detect audio-frequency current.

8, telephone set multi-line conversion equipment according to claim 2, it is characterized in that: described switch includes the conversation interlock circuit in [6], and the conversation interlock circuit adopts photoelectrical coupler to detect audio-frequency current.