CN203984245U - A kind of wiring board of new type mining guard grating - Google Patents

Abstract

A wiring board for new type mining guard grating, solves existing mine safety grid receiver voltage, current range is narrower, can not with the problem of the scheduling switching equipment compatibility of Multiple Type on the market; By common single channel guard grating change, be designed to 4 roads or multichannel guard grating, reduce enterprise and user's cost.

Description

A kind of wiring board of new type mining guard grating

Technical field

The utility model relates to mine safety grid, and the voice signal that specifically voice signal of non-intrinsically safe safety-type is converted to essential safety-type exports the wiring board of a kind of new type mining guard grating of down-hole to.

Background technology

Present mine safety grid on the market all can play the function that non-intrinsic safety signal is converted to intrinsic safety signal, but because various scheduling switching equipment on the market in recent years occur in succession, and the output voltage of the scheduling switching equipment of various models, electric current not quite identical, voltage, current range that traditional mine safety grid can receive are narrower, thereby the mine safety grid that cause different brands, model produce incompatible phenomenon with scheduling switching equipment, thus cause communication terminal device (as mine telephone set) produce No ringing, cannot off-hook etc. phenomenon.

Meanwhile, at mine safety grid on the market, be single channel structural design, this structural design is comparatively inconvenience when installation and maintenance, and floor space is larger, increases the cost of enterprise.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of wiring board of new type mining guard grating, solves existing mine safety grid receiver voltage, current range is narrower, can not with the problem of the scheduling switching equipment compatibility of Multiple Type on the market; By common single channel guard grating change, be designed to 4 roads or multichannel guard grating, reduce enterprise and user's cost.

The utility model is that the technical scheme that the deficiency that solves the problems of the technologies described above adopts is: a kind of wiring board of new type mining guard grating, direct voltage and the direct current of this circuit part of mine safety grid base will be passed through, conversion is coupled as and meets the direct voltage and the DC current signal that require for colliery, to pass through ringing-current voltage and the ringing-current electric current of this circuit part of mine safety grid base, conversion coupling becomes ringing-current voltage and the ringing-current current signal that meets mine safety requirement;

At the IN-B of input direct-current signal port, first direct voltage and direct current are connected to 1 end of the positive pole of diode V15 and the emitter of triode V32 and resistance R 14, the negative pole of diode V15 is connected to the collector electrode of triode V32 and 1 end of resistance R 13, the base stage of triode V32 is connected to 2 ends of resistance R 14 and the negative pole of diode V16, 1 end of the emitter of triode V31 and resistance R 15, 2 ends of resistance R 13 connect the negative pole of diode V18 and the collector electrode of triode V29, the emitter of triode V29 connects the positive pole of diode V18 and 1 end of resistance R 11, 2 ends of base stage contact resistance R11 of triode V29 and the positive pole of diode V17, 1 end of the emitter of triode V30 and resistance R 12, the collector electrode of triode V30 connects the negative pole of diode V17 and 1 end of resistance R 16, 2 ends of the base stage contact resistance R12 of triode V30 are to output OUT-A, the collector electrode of triode V31 connects the negative pole of diode V16 and 2 ends of resistance R 16, 2 ends of the base stage contact resistance R15 of triode V31 are until output OUT-B,

At the IN-A of input direct-current signal port, direct voltage and direct current enter 1 port of rectifier bridge B2, from 2 port outputs, 21 ends of port contact resistance R7 of rectifier bridge B2 and 1 end of the positive pole of electrochemical capacitor C4 and resistance R 8 and the drain electrode of triode V14, the grid of 2 end connecting triode V13 of resistance R 7, the drain electrode of triode V13 connects the negative pole of electrochemical capacitor C4, 1 end of the emitter of triode V20 and resistance R 10, 2 ends of collector electrode contact resistance R8 of triode V20 and the grid of triode V14, 1 end of the base stage contact resistance R9 of triode V20, 22 ends of end contact resistance R10 and the source electrode of triode V14 of resistance R 9, the source electrode of triode V13 connects 4 ends of rectifier bridge B2, by 1 end of contact resistance R11 after the 3 end outputs of rectifier bridge B2, by triode V30 and triode V31, export OUT-A and OUT-B afterwards,

Ringing-current voltage and ringing-current current input signal carry out circuit from IN-A end and IN-B end, by IN-A, hold successively after contact resistance R1 and capacitor C 1, be connected to 1 end of rectifier bridge B1, 2 ends by rectifier bridge B1 connect the positive pole of electrochemical capacitor C3 and 1 end of resistance R 2, 4 ends of rectifier bridge B1 connect the negative pole of electrochemical capacitor C3, the positive pole of 2 pins of photoelectrical coupler T1 and 4 pins and diode D5, 1 end of 2 end contact resistance R3 of resistance R 2, 1 end of resistance R 4 and the negative pole of diode D5, 2 ends of the 1 pin contact resistance R3 of photoelectrical coupler T1, 2 pins of photoelectrical coupler T1 connect the positive pole of 4 pins and diode D5, 2 ends of the 3 pin contact resistance R4 of photoelectrical coupler T1, 5 pins of photoelectrical coupler T1 are connected with the positive pole of 7 pins of photoelectrical coupler T1 and diode V12, 6 pins of photoelectrical coupler T1 are connected with the negative pole of 8 pins of photoelectrical coupler T1 and diode V12,

Ringing-current voltage is connected after capacitor C 1, resistance R 5 and resistance R 6 by input IN-A end successively with ringing-current current input signal, by triode V30 and triode V31, exports OUT-A and OUT-B.

The utility model beneficial effect is: this utility model have compatible strong, stability is high, the large feature of fail safe Senior Three, support hot plug, can support all to dispatch switching equipment, input voltage, current range are wide, and sending allowance is low, long transmission distance, install simple and easy, easy to use, more can directly be designed to the wiring board of 4 tunnels and even multichannel, greatly reduce manufacturing enterprise and user's cost.

Accompanying drawing explanation

Fig. 1 is circuit theory diagrams of the present utility model.

Embodiment

Mine safety grid are during by direct voltage and direct current, and by guard grating basic circuit part, phone direct voltage and the current signal of standard, conversion coupling becomes and meets direct voltage and the DC current signal that safety of coal mines requires.(as accompanying drawing 1)

At the IN-B of input direct-current signal port, first direct voltage and direct current are connected to 1 end of the positive pole of diode V15 and the emitter of triode V32 and resistance R 14, the negative pole of diode V15 is connected to the collector electrode of triode V32 and 1 end of resistance R 13, and the base stage of triode V32 is connected to 2 ends of resistance R 14 and the negative pole of diode V16, the emitter of triode V31 and 1 end of resistance R 15.2 ends of resistance R 13 connect the negative pole of diode V18 and the collector electrode of triode V29, the emitter of triode V29 connects the positive pole of diode V18 and 1 end of resistance R 11,2 ends of base stage contact resistance R11 of triode V29 and the positive pole of diode V17, the emitter of triode V30 and 1 end of resistance R 12, the collector electrode of triode V30 connects the negative pole of diode V17 and 1 end of resistance R 16, and 2 ends of the base stage contact resistance R12 of triode V30 are to output OUT-A.The collector electrode of triode V31 connects the negative pole of diode V16 and 2 ends of resistance R 16, and 2 ends of the base stage contact resistance R15 of triode V31 are until output OUT-B.

This kind of set-up mode solved common guard grating input voltage, current range is narrow and cause the voltage of output, the problem that electric current can not reach terminal communication equipment requirement, adopt the components and parts such as rectifier bridge, photoelectrical coupler, resistance, triode, diode, electrochemical capacitor, thin-film capacitor, will input excessive or too small voltage, the scope (if direct voltage is 56 ~ 60V) that current stabilization can receive to terminal communication equipment.

At the IN-A of input direct-current signal port, due to electric capacity every the straight-through characteristic of handing over, direct voltage and direct current enter 1 port of rectifier bridge B2, from 2 ports outputs.21 ends of port contact resistance R7 of rectifier bridge B2 and 1 end of the positive pole of electrochemical capacitor C4 and resistance R 8 and the drain electrode of triode V14, the grid of 2 end connecting triode V13 of resistance R 7, the drain electrode of triode V13 connects the negative pole of electrochemical capacitor C4, 1 end of the emitter of triode V20 and resistance R 10, 2 ends of collector electrode contact resistance R8 of triode V20 and the grid of triode V14, 1 end of the base stage contact resistance R9 of triode V20, 22 ends of end contact resistance R10 and the source electrode of triode V14 of resistance R 9, the source electrode of triode V13 connects 4 ends of rectifier bridge B2, by 1 end of contact resistance R11 after the 3 end outputs of rectifier bridge B2, by triode V30 and triode V31, export OUT-A and OUT-B afterwards.For the basic circuit of guard grating, for direct current, the ringing-current of terminal communication equipment provides basic transmission channel.

When 2, mine safety grid device is by ringing-current voltage and ringing-current electric current, by guard grating basic circuit part, the phone ringing-current voltage and current signal of standard, conversion coupling becomes ringing-current voltage and the ringing-current current signal that meets safety of coal mines requirement.(as accompanying drawing 1)

Ringing-current voltage and ringing-current current input signal carry out circuit from IN-A end and IN-B end, by IN-A, hold 1 end of contact resistance R1 and 1 end of capacitor C 1,2 ends of resistance R 1 connect 1 end of capacitor C 2,2 ends of capacitor C 2 connect 1 end of rectifier bridge B1,2 ends by rectifier bridge B1 connect the positive pole of electrochemical capacitor C3 and 1 end of resistance R 2,4 ends of rectifier bridge B1 connect negative pole, 2 pins of photoelectrical coupler T1 and the positive pole of 4 pins and diode D5 of electrochemical capacitor C3, and 21 ends of end contact resistance R3 of resistance R 2 are, the negative pole of 1 end of resistance R 4 and diode D5.2 ends of the 1 pin contact resistance R3 of photoelectrical coupler T1,2 pins of photoelectrical coupler T1 connect the positive pole of 4 pins and diode D5,2 ends of the 3 pin contact resistance R4 of photoelectrical coupler T1.5 pins of photoelectrical coupler T1 are connected with the positive pole of 7 pins of photoelectrical coupler T1 and diode V12, and 6 pins of photoelectrical coupler T1 are connected with the negative pole of 8 pins of photoelectrical coupler T1 and diode V12.

1 end that connects capacitor C 1 by input IN-A end, 1 end of 2 end contact resistance R5 of capacitor C 1,1 end of 2 end contact resistance R6 of resistance R 5,2 ends of 2 end contact resistance R11 of resistance R 6, export OUT-A and OUT-B by triode V30 and triode V31 afterwards.

The coupling unit that rectifier bridge B1 and rectifier bridge B2 coupling part are guard grating, is first coupled into stable ringing signal via conversion after the rectifier bridge of Fig. 1 by ringing-current part excessive in ring and communication process and transfers to OUTA, OUTB.The rectifying part of guard grating, the straight-through characteristic of handing over of resistance by electric capacity, makes direct current pass through rectifier bridge B2, and ringing-current, by rectifier bridge B1, works alone mutually, increases the reliability and stability of circuit.

Simultaneously, because the direct current ringing-current rectifier bridge of circuit works alone, its reliability is high, so can carry out repeated arrangement on a wiring board, same circuit is used in the circuit board side by side, if 4 road guard gratings are that 4 road guard gratings are realized side by side, between the guard grating of every road, minimum spacing is 3.5mm, and the input of every road guard grating, outlet line minimum spacing are 1.5mm.Can realize the centralized wrong road guard grating that is greater than 4 tunnels according to same theory and mode thus.By this circuit implementation, multichannel guard grating can greatly reduce manufacturing enterprise and client's cost.

Claims (1)

1. the wiring board of a new type mining guard grating, direct voltage and the direct current of this circuit part of mine safety grid base will be passed through, conversion is coupled as and meets the direct voltage and the DC current signal that require for colliery, ringing-current voltage and the ringing-current electric current of this circuit part of mine safety grid base will be passed through, conversion coupling becomes ringing-current voltage and the ringing-current current signal that meets mine safety requirement, it is characterized in that:

At the IN-B of input direct-current signal port, first direct voltage and direct current are connected to 1 end of the positive pole of diode V15 and the emitter of triode V32 and resistance R 14, the negative pole of diode V15 is connected to the collector electrode of triode V32 and 1 end of resistance R 13, the base stage of triode V32 is connected to 2 ends of resistance R 14 and the negative pole of diode V16, 1 end of the emitter of triode V31 and resistance R 15, 2 ends of resistance R 13 connect the negative pole of diode V18 and the collector electrode of triode V29, the emitter of triode V29 connects the positive pole of diode V18 and 1 end of resistance R 11, 2 ends of base stage contact resistance R11 of triode V29 and the positive pole of diode V17, 1 end of the emitter of triode V30 and resistance R 12, the collector electrode of triode V30 connects the negative pole of diode V17 and 1 end of resistance R 16, 2 ends of the base stage contact resistance R12 of triode V30 are to output OUT-A, the collector electrode of triode V31 connects the negative pole of diode V16 and 2 ends of resistance R 16, 2 ends of the base stage contact resistance R15 of triode V31 are until output OUT-B,

At the IN-A of input direct-current signal port, direct voltage and direct current enter 1 port of rectifier bridge B2, from 2 port outputs, 21 ends of port contact resistance R7 of rectifier bridge B2 and 1 end of the positive pole of electrochemical capacitor C4 and resistance R 8 and the drain electrode of triode V14, the grid of 2 end connecting triode V13 of resistance R 7, the drain electrode of triode V13 connects the negative pole of electrochemical capacitor C4, 1 end of the emitter of triode V20 and resistance R 10, 2 ends of collector electrode contact resistance R8 of triode V20 and the grid of triode V14, 1 end of the base stage contact resistance R9 of triode V20, 22 ends of end contact resistance R10 and the source electrode of triode V14 of resistance R 9, the source electrode of triode V13 connects 4 ends of rectifier bridge B2, by 1 end of contact resistance R11 after the 3 end outputs of rectifier bridge B2, by triode V30 and triode V31, export OUT-A and OUT-B afterwards,

Ringing-current voltage and ringing-current current input signal carry out circuit from IN-A end and IN-B end, by IN-A, hold successively after contact resistance R1 and capacitor C 1, be connected to 1 end of rectifier bridge B1, 2 ends by rectifier bridge B1 connect the positive pole of electrochemical capacitor C3 and 1 end of resistance R 2, 4 ends of rectifier bridge B1 connect the negative pole of electrochemical capacitor C3, the positive pole of 2 pins of photoelectrical coupler T1 and 4 pins and diode D5, 1 end of 2 end contact resistance R3 of resistance R 2, 1 end of resistance R 4 and the negative pole of diode D5, 2 ends of the 1 pin contact resistance R3 of photoelectrical coupler T1, 2 pins of photoelectrical coupler T1 connect the positive pole of 4 pins and diode D5, 2 ends of the 3 pin contact resistance R4 of photoelectrical coupler T1, 5 pins of photoelectrical coupler T1 are connected with the positive pole of 7 pins of photoelectrical coupler T1 and diode V12, 6 pins of photoelectrical coupler T1 are connected with the negative pole of 8 pins of photoelectrical coupler T1 and diode V12,

Ringing-current voltage is connected after capacitor C 1, resistance R 5 and resistance R 6 by input IN-A end successively with ringing-current current input signal, by triode V30 and triode V31, exports OUT-A and OUT-B.