CN202189256U

CN202189256U - Output type relay module

Info

Publication number: CN202189256U
Application number: CN201120233293XU
Authority: CN
Inventors: 汪深
Original assignee: HUNAN SHENTUO INTELLIGENT EQUIPMENT CO Ltd
Current assignee: Hunan Scientop Automatic Equipment Co Ltd
Priority date: 2011-07-05
Filing date: 2011-07-05
Publication date: 2012-04-11
Anticipated expiration: 2021-07-05

Abstract

An output type relay module can integrate a plurality of relays, a socket and a plurality of detachable terminals on a multilayer printed circuit board. One ends of each relay coil are connected in short mode to be connected to a 24V power supply anode, and the other ends of each relay coil are led to the socket. Each pin on the socket is correspondingly connected with output points of a programmable logic controller (PLC) through an adapting cable, two ends of a contact of each relay are respectively led to a detachable terminal bar for controlling load. The output type relay module separates and amplifies output signals of the PLC to drive larger load without damaging the PLC. Further, connection pieces and the detachable terminals are used for connection, so that the output type relay module is convenient to use and improves working efficiency. The output type relay module is welded in wave-soldering mode, so that reliability is improved, maintenance cost is reduced, and cabinet body space is saved by means of the small volume.

Description

Output type relay module

Technical field

The utility model relates to a kind of signal control device; Be specifically related to a kind of PLC exported the output type relay module of Signal Spacing and amplification, it can make the output of PLC drive bigger load and not damage PLC itself, simultaneously; Effectively having reduced cabinet takes up room; Reduce the workload of wiring, stopped wiring error, and quality problems such as rosin joint, leakage that site welding produces are welded, wrong weldering.

Background technology

At present, at the industrial control field that uses PLC control, the control signal of PLC output; Generally need through auxiliary reclay; Control the adhesive of auxiliary reclay coil through the reference mark of PLC output module,, drive jumbo load with the jumbo contact of auxiliary reclay; It is on-the-spot that its contact needs to cause control with lead through connection terminal, reaches the purpose of control.But the control that realizes has in this way not only taken the very big cabinet space of switch board; And the wiring of PLC high density output module is very loaded down with trivial details; Each 32 high density output module needs 40 wiring of site welding, and the restriction of field condition makes that not only welding is time-consuming, and the difficult quality of welding is guaranteed; Rosin joint, wrong weldering will make the reliability decrease of PLC control; Even cause great casualty accident, and brought inconvenience also for working service in the future, increased the maintenance cost of equipment.

Summary of the invention

The utility model technical matters to be solved is: solve the problem that above-mentioned prior art exists; And a kind of output type relay module is provided; PLC high density output module directly is connected to this output type relay module; Drive load by output type relay module, and this output type relay module have high reliability, reduce the wiring workload, raise the efficiency, easy to use, reduce maintenance cost, save characteristics such as cabinet space.

The technical scheme that the utility model adopts is: a plurality of relays and socket, removable terminal block row are integrated on the multilayer board; One end short circuit of each relay coil gets up to be connected to the 24V positive source; The other end of each relay coil is then guided on the socket; And removable terminal block row connection is guided at the two ends, contact of each relay respectively; Be connected with the socket of this output type relay module through the accessory power outlet of Adapter Cable with the PLC output module, removable terminal block row be connected with load.

In the technique scheme; The other end of described each relay coil is guided on the socket; The centre connects through the wire jumper contact pin; Each stitch of wire jumper contact pin is welded on the other end of each relay coil respectively, with different stitch short circuits, changes the relay that the PLC output point is driven with wire jumper.

In the technique scheme; The coil two ends reverse parallel connection of each relay on the circuit board has fly-wheel diode; Be used to protect the PLC output module to avoid the impact of inverse electromotive force; Whether the circuit that has one group of Chip-R to become with the light emitting diode series simultaneously also is connected in parallel on the coil two ends of each relay, be used in reference to the timberline circle and switch on; Other has one group of Chip-R and the circuit that the light emitting diode series becomes, and is serially connected on the loop, contact of each relay, is used to indicate the attracting state of relay contact; In addition; At the two ends of 24V power supply, be parallel with a loop of forming by light emitting diode and Chip-R, be used for the power supply indication.

In the technique scheme, for the reversal connection that prevents the 24V power supply causes damage, at the 24V power supply positive and negative electrode stamp-mounting-paper diode of having connected respectively, protection PLC module and this output type relay module.

In the technique scheme; Described a plurality of relay is 8; Described socket is 15 pin D connector or holes, has in fact only used 10 Pin wherein, for the convenience of purchasing; What on this output type relay module, use is 15 pin D connector or holes, and described removable terminal block row is 10 joint removable terminal block rows and 4 joint removable terminal block rows.

Principle of work:

On output type relay module, a socket, 10 joint removable terminal block rows, 4 joint removable terminal block rows, 10 stamp-mounting-paper diodes, 9 light emitting diodes (wherein two is the red and green luminous diode of common cathode), 25 Chip-Rs and 8 miniature relays are integrated on the multilayer circuit board.One end of each relay coil, short circuit gets up to be connected in the 24V positive source, and the other end is then guided on the socket.Point on the socket connects one to one relay coil one end on output point on the PLC output module and the output type relay module through special-purpose Adapter Cable, and the output contact of 8 relays is guided on the 10 joint removable terminal blocks through multilayer circuit board.When the output point of PLC had output, 24V voltage will be added in corresponding relay coil two ends, drove corresponding relay on the output type relay module, through guiding to the contact on the removable terminal block row, load was controlled.The coil two ends of each relay, reverse parallel connection a fly-wheel diode, when relay coil cuts off the power supply, play the effect of afterflow.In addition; The circuit of connecting and forming by resistance and light emitting diode; Also and be connected in the two ends of each relay coil, when relay coil gets when electric, the loop that light emitting diode and resistance are formed is also connected simultaneously; The light emitting diode conducting is luminous, as the relay coil indicator signal of adhesive whether; The circuit of connecting and forming by another group resistance and light emitting diode; Series connection is on each relay contact loop, and during the relay contacts adhesive, the light emitting diode conducting is luminous; State to each relay contact is indicated, and shows the output state of PLC signal intuitively.Simultaneously; Circuit of connecting and forming of parallel connection between the 24V power supply on the output type relay module by resistance and light emitting diode; When output type relay module is switched on; The loop that light emitting diode and resistance are formed is also connected simultaneously, and the light emitting diode conducting is luminous, as the indication of output type relay module power supply energising.

The beneficial effect of the utility model is, can make the control signal of industry spot and the high density output module of PLC realize seamless link, reduced the process of plug welding; Improved production efficiency; Reduce the trouble spot, reduced maintenance cost, and very easy to use; Relay module volume is little, has saved Industry Control cabinet cabinet space, thereby has reduced the cost of equipment.

Description of drawings:

Fig. 1 is the utility model circuit theory diagrams;

Fig. 2 is the Adapter Cable schematic diagram.

The explanation of accompanying drawing mark:

Among Fig. 1,1-1# relay, 2-2# relay, 3-3# relay, 4-4# relay; 5-5# relay, 6-6# relay, 7-7# relay, 8-8# relay, 9-4 joint removable terminal block rows; 10-wire jumper contact pin, 11-socket, 12-10 joint removable terminal block rows, 13-1# light emitting diode; 14-1# Chip-R, 15-1# fly-wheel diode, 16-2# light emitting diode, 17-2# Chip-R.

Among Fig. 2,18-first plug, 19-second plug, 20-the 3rd plug, 21-the 4th plug, 22-coupling, 23-Adapter Cable.

Embodiment

In the embodiment shown in fig. 1, the contact on the removable terminal block row distributes as shown in the figure.On the output type relay module, 1

# relay

1,2

# relay

2,3# relay 3; 4

# relay

4,5

# relay

5,6

# relay

6,7# relay 7; One end of the coil contact of 8# relay 8 is got up to be connected on the positive pole of 24V power supply by short circuit, and the other end has been guided to respectively through multilayer board on the 1#, 2#, 3#, 4#, 5#, 6#, 7#, 8# tie point of socket 11, all contacts of relay; Through multilayer printed circuit, be connected in KA1-A, KA1-B on the 10 joint removable terminal block rows 12 respectively, KA2-A, KA2-B, KA3-A, KA3-B; KA4-A, KA4-B, KA5-A, KA5-B, KA6-A, KA6-B, KA7-A, KA7-B, KA7-C; On the contact of KA8-A, KA8-B, KA8-C, 7

# relay

7,8# relay 8; Each is a pair of to have Chang Kai and normally closed contact, is normally opened contact between KA7-A, KA7-B, is normally closed contact between KA7-A, KA7-C; Being normally opened contact between KA8-A, KA8-B, is normally closed contact between KA8-A, KA8-C, and the 9# of

socket

11,10# tie point are connected in respectively on the negative pole, positive pole of 24V power supply.1# on the wire

jumper contact pin

10,2#, 3#, 4#, 5#, 6#, 7#, 8# tie point are with 1#, 2#, 3#, 4#, 5#, 6#, 7#, the 8# tie point short circuit of socket 11.With Adapter Cable 23; Connect one to one each relay drive point on the output point on the PLC output module and this module; Through Adapter Cable 23; With the 0# on the PLC, 1#, 2#, 3#, 4#, 5#, 6#, 7# output point respectively with socket 11 on 1#, 2#, 3#, 4#, 5#, 6#, 7#, 8# stitch be connected, thereby be connected to 1# on the output type relay module, 2#, 3#, 4#, 5#, 6#, 7#, 8# relay coil one end, with the control of PLC output signal; Through Adapter Cable, convert the control signal of corresponding relay coil on the output type relay module to.Through guiding to the relay contact on the 10 joint removable terminal block rows 12, corresponding coil, contact pilot lamp are lighted in the operation of control load simultaneously again.When the 0# output point on the PLC has signal when output, will pass through Adapter Cable 23, it is electric to make that the coil of 1# relay 1 gets, its closing of contact, KA1-A, the connection of KA1-B contact on the 10 joint removable terminal blocks rows 12 are used for the operation of control load.Simultaneously, also there is the voltage of a 24V in the circuit two ends that 1#

light emitting diode

13 and 1# Chip-R 14 (resistance is 51K) are formed; After the Chip-R dividing potential drop, the electric current that flows through 1# light emitting diode 13 is 0.47mA, and the conducting of 1# light emitting diode is luminous; Output signal on the PLC output module is indicated, when the output blackout of PLC, and 1# relay 1 coil and 1# fly-wheel diode 15 formation loops; Discharge the energy in the 1# relay coil, guarantee its operate as normal.2#

light emitting diode

16,2# Chip-R 17 are (in order to increase the through-current capability in relay contact loop; This current-limiting resistance is formed in parallel by the Chip-R of 2 100K) and the loop that is composed in series, 1# relay 1 contact, be connected in through multilayer circuit board on 4 joint removable terminal blocks rows' 9 the KA1-L contact.During use; (10 save the KA1-A contact that removable terminal blocks arrange on 12 is connected in positive source at the load two ends with the KA1-A contact on the 10 joint removable

terminal blocks rows

12 and 4 joint removable terminal blocks rows' 9 KA1-L contact and the series connection of 24V power supply; 4 joint removable terminal block rows' 9 KA1-L contact is connected in power cathode); 16 conductings of 2# light emitting diode are luminous, just can see the ruuning situation of load intuitively.The implementation of other 7 points is consistent with the 1# relay.In addition, if the 1# relay is bad, can use wire jumper; With point of the 1# on the wire

jumper contact pin

10 and 2# tie point short circuit; Realize the change of relay circuit, it is electric that the coil of 2# relay is got, its closing of contact; KA2-A, KA2-B contact on the 10 joint removable terminal block rows are connected, and are used for the operation of control load.Need not to revise software promptly can fix a breakdown.The changing method of other relays, consistent therewith.

In embodiment illustrated in fig. 2, Adapter Cable 23 principles are as shown in Figure 2.1 Adapter Cable 23 can be connected 32 high density output modules of 4 output type relay modules and 1 PLC.Coupling 22 is pegged graft with the socket on the PLC output module; First plug 18 is pegged graft with the socket 11 among Fig. 1; Realized the corresponding connection of each output point between output type relay module and the PLC, 9# in its first plug and 10# be power cathode, positive pole, constitutes the loop with the PLC output module.The connected mode of other interfaces is with last identical, and second plug 19, the 3rd plug 20, the four plugs 21 are pegged graft with the socket of other three output type relay modules respectively, and the 9# of each plug and 10# are power cathode, positive pole.

Claims

1. output type relay module; It is characterized in that: a plurality of relays and socket, removable terminal block row are integrated on the multilayer board; One end short circuit of each relay coil gets up to be connected to the 24V positive source; The other end of each relay coil is then guided on the socket; And removable terminal block row connection is guided at the two ends, contact of each relay respectively, is connected with the socket of this output type relay module through the accessory power outlet of Adapter Cable with the PLC output module, and removable terminal block row be connected with load.

2. output type relay module according to claim 1; The other end that it is characterized in that described each relay coil is guided on the socket; The centre connects through the wire jumper contact pin; Each stitch of wire jumper contact pin is welded on the other end of each relay coil respectively, with wire jumper different stitch is carried out short circuit.

3. output type relay module according to claim 1; It is characterized in that: the coil two ends reverse parallel connection of each relay on the circuit board has fly-wheel diode, and the circuit that has one group of Chip-R to become with the light emitting diode series simultaneously also is connected in parallel on the coil two ends of each relay; Other has one group of Chip-R and the circuit that the light emitting diode series becomes, and is serially connected on the loop, contact of relay; In addition, at the two ends of 24V power supply, be parallel with a loop of forming by light emitting diode and Chip-R; At the positive and negative electrode of 24V power supply, the stamp-mounting-paper diode of having connected respectively.

4. output type relay module according to claim 1 is characterized in that: described a plurality of relays are 8, and described socket is 15pinD type connector or hole, and described removable terminal block row is 10 joint removable terminal block rows and 4 joint removable terminal block rows.

5. output type relay module according to claim 1 is characterized in that: 1 Adapter Cable can be connected 32 high density output modules of 4 output type relay modules and a PLC.