CN202189255U

CN202189255U - Input type relay module

Info

Publication number: CN202189255U
Application number: CN2011202332643U
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

The utility model discloses an input type relay module. A plurality of miniature relays and sockets, and a detachable terminal row are integrated on a multilayer printed circuit board (PCB), one end of each relay coil is led to a corresponding contact on the detachable terminal row by wiring, the other end of each relay coil is led to a common contact on the terminal row as the common contact by a short circuit, one end of each relay contact is connected with an anode of a 24V power supply after the short circuit, the other end of each relay contact is led onto the socket through the multilayer PCB, the sockets are correspondingly connected with input points on an input module of the PLC one by one through adapter cables, and switching value signals on an industrial control site are respectively connected on the corresponding contacts and a common terminal of the detachable terminal row. The input type relay module isolates the on-site switching value signals and sends the switching value signals into a programmable logic controller (PLC), and plug connectors and the detachable terminal row are used for connection, so that the input type relay module is convenient to use, improves the working efficiency, and is welded by wave soldering, so as to improve the reliability, reduce the maintenance cost, and save the space of a cabinet body due to small volume.

Description

Imported relay module

Technical field

The utility model relates to a kind of signal control device, is specifically related to a kind ofly with the switching value Signal Spacing and send into the imported relay module of PLC, and it can directly be delivered to the switching value signal at scene among the PLC, simultaneously, effectively reduces cabinet and 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, some switching value signals that industry spot need be monitored; General guiding on the connection terminal in the PLC switch board through lead earlier; The input signal contact of PLC is also guided on the connection terminal through lead, through connection terminal, sends into the switching value signal of guiding in the PLC switch board among the PLC then; Through PLC equipment is monitored, thereby reached the purpose of control.But the control with this mode of connection realizes has not only taken the very big cabinet space of switch board; And the wiring of PLC high density load module, very loaded down with trivial details, each high density load module needs 36 wiring of site welding at least; The restriction of field condition makes that not only welding is time-consuming; And the difficult quality of welding is guaranteed, and rosin joint, wrong weldering not only make the reliability decrease of PLC control, even cause great casualty accident easily; Bring 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 imported relay module is provided; PLC high density load module directly is connected to this imported relay module; By imported relay module with Signal Spacing and send among the PLC, and imported relay module have the reliability that improves control, 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 terminated line of each relay coil all is introduced to the corresponding contact on the removable terminal block row, and the other end of each relay coil is guided to upward common junction of removable terminal block row by short circuit as common junction; Connect the 24V positive source behind the one end short circuit of each relay contact, and the other end of each relay contact is guided on the socket through circuit board; Socket connects one to one through the input point on Adapter Cable and the PLC load module; The on-the-spot switching value signal of Industry Control is connected on respectively on removable terminal block row's the corresponding contact and common port.

In the technique scheme; Each relay coil two ends reverse parallel connection on the multilayer circuit board has fly-wheel diode, is used to protect the PLC output module to avoid the impact of inverse electromotive force, 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; Be used for the state of each relay indicated with power supply and indicate; In addition, at the two ends of 24V power supply, be parallel with a loop of forming by light emitting diode and Chip-R.

In the technique scheme, cause damage for the reversal connection that prevents the 24V power supply, at 24V power cathode, the common port stamp-mounting-paper diode of having connected respectively, protection PLC module and this imported relay module.

In the technique scheme, described a plurality of miniature relays are 16, are divided into two groups; Described socket is 26pinD type connector or hole, has in fact only used 18Pin wherein, for the convenience of purchasing; What on this imported relay module, use is 26 pin D connector or holes, and described terminal row is 10 joint removable terminal block rows, 17 of described Chip-Rs; 19 of stamp-mounting-paper diodes, light emitting diode are 17.

Principle of work:

On imported relay module, a socket, 10 joint removable terminal block rows, 16 Chip-Rs, 16 stamp-mounting-paper diodes, 16 light emitting diodes and 16 miniature relays are integrated on the circuit board.1#～8# on the socket, 10#～17# point connect one to one to the 16# input point through 1# on Adapter Cable and the PLC load module.16 relays are divided into two groups; Every group 8; The winding wiring of each relay all is introduced on the removable terminal block row, and per 8 relays all have one to be guided on the removable terminal block row as common junction by short circuit in its coil contact; Another coil contact is all guided to respectively on the corresponding contact on the removable terminal block row, totally 2 groups.And the contact of these 16 relays has one to terminate at the 24V positive source, and the other end is guided on the contact corresponding on the socket through circuit board.During use; The switching value of needs monitoring is connected on respectively on the corresponding point and common port on the removable terminal block row, is actually the two ends that the switching value signal of needs monitoring are connected on relay coil, if the switching value of on-site supervision is closed; It is electric that relay coil is got, the relay contact adhesive.Through Adapter Cable, make that corresponding point get electric connection on the PLC load module, signal feeds among the PLC.On each relay coil, 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; Be connected in parallel on the two ends of both ends of power and each relay coil, when imported relay module was switched on, the loop that light emitting diode and resistance are formed was also connected simultaneously; The light emitting diode conducting is luminous, as the energising indication of imported relay module; When relay coil gets when electric, 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 PLC signal input, shows the input state of PLC signal intuitively.

The beneficial effect of the utility model is, can make on-the-spot control signal and the high-density module of PLC realize seamless link, reduced the process that plug welds, and improved production efficiency, reduced 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:

1-1# relay among Fig. 1,2-2# relay, 3-3# relay, 4-4# relay, 5-5# relay; The 6-6# relay, 7-7# relay, 8-8# relay, 9-9# relay; 10-10# relay, 11-11# relay, 12-12# relay, 13-13# relay; 14-14# relay, 15-15# relay, 16-16# relay, 17-socket; 18-10 joint removable terminal block rows, 19-1# fly-wheel diode, 20-1# Chip-R, 21-1# light emitting diode.

22-first plug among Fig. 2,23-second plug, 24-coupling, 25-Adapter Cable.

Embodiment

In the embodiment shown in fig. 1, the contact on the terminal distributes as shown in the figure, is divided into two groups of A, B.1

# relay

1,2

# relay

2,3# relay 3; 4

# relay

4,5

# relay

5,6# relay 6; 7# relay 7; A common junction of 8# relay 8 coils got up by short circuit, through multilayer circuit board it guided on the ACOM contact on the 10 joint removable terminal blocks rows 18, and the other end of coil contact has been guided on the In-A0, In-A1, In-A2, In-A3, In-A4, In-A5, In-A6, In-A7 contact of 10 joint terminal rows respectively through circuit board; Its contact; Wherein an end is got up to be connected in the 24V positive source by short circuit, and the other end is connected on respectively on the 1#, 2#, 3#, 4#, 5#, 6#, 7#, 8# tie point of socket 17 through circuit board, organizes as A.9

# relay

9,10

# relay

10,11# relay 11; 12# relay 12; 13

# relay

13,14

# relay

14,15# relay 15; A common junction of 16# relay 16 coils is got up by short circuit; Through circuit board it has been guided on the BCOM contact on the 10 joint removable terminal blocks rows 18, the other end of coil contact has been guided to respectively through circuit board on 10 joint removable terminal blocks rows' 18 the In-B0, In-B1, In-B2, In-B3, In-B4, In-B5, In-B6, In-B7 contact, its contact; Wherein an end is got up to be connected in the 24V positive source by short circuit, and the other end is connected on respectively on the 10#, 11#, 12#, 13#, 14#, 15#, 16#, 17# tie point of socket 17 through circuit board.Organize as B.PLC is through Adapter Cable 25; The PLC load module is corresponding one by one with point on the imported relay module; Through Adapter Cable 25, with the 0# on the PLC, 1#, 2#, 3#, 4#, 5#, 6#, 7# input point respectively with socket 17 on 1#, 2#, 3#, 4#, 5#, 6#, 7#, 8# stitch be connected; 9#, 10#, 11#, 12#, 13#, 14#, 15#, 16# input point respectively with socket 17 on 10#, 11#, 12#, 13#, 14#, 15#, 16#, 17# stitch be connected, thereby be connected to 1～16# relay contact, one end on the imported relay module.The switching value at scene is received on this module 10 joint removable terminal blocks row 18, made the actuating of relay on the module,, the switching value signal is delivered to the input point of the correspondence of PLC through Adapter Cable.9# on the 26 pin D connectors, 18# tie point link to each other with the negative pole of 24V power supply through circuit board, as the common port on the module.In the application, the switching value signal that needs are monitored is connected on the In-A0 and ACOM of 10 joint terminal rows 18, if the switching value signal provides; Make the coil invocation point of 1# relay 1, because an end of its contact is connected in positive source, the other end is connected on the position, 1# hole of socket 17; Connect 25 through Adapter Cable; Make the voltage that has a 24V between 0# point and the common port on the PLC load module, thereby the switching value signal that will monitor is sent in the PLC load module.Simultaneously, by the circuit two ends that 1# Chip-R 20 (resistance is 10K) and 1# light emitting diode 21 are composed in series, also there is the voltage of a 24V; After the Chip-R dividing potential drop; The electric current that flows through 1# light emitting diode 21 is 2.4mA, and 21 conductings of 1# light emitting diode are luminous, and the input signal on the PLC load module is indicated; When the switching value blackout at scene; The coil of 1# relay and 1# fly-wheel diode 19 formation loops discharge the energy in the 1# relay coil, guarantee its operate as normal.The implementation of other 15 points is consistent with 1# relay 1.

In embodiment illustrated in fig. 2, Adapter Cable 25 wiring are as shown in the figure.1 Adapter Cable 25 can be connected 32 high density load modules of 2 imported relay modules and 1 PLC.32 high density load modules of coupling 24 and PLC socket is connected, and first plug 22 is pegged graft with the socket 17 among Fig. 1, has realized the corresponding connection of each input point between imported relay module and the PLC.9# on its first plug 22 links to each other with power cathode with the 18# pin, with the anodal formation of the 24V that comes through contact loop.The connected mode of second plug 23 is with last identical.32 inputs of switching value signal in the PLC load module have been realized.

Claims

1. imported relay module; It is characterized in that: a plurality of relays and socket, terminal row are integrated on the multilayer board; One end of each relay coil all is introduced to the corresponding contact on the removable terminal block row, and the other end of each relay coil is guided to common junction on the terminal row by short circuit as common junction; Connect the 24V positive source behind the one end short circuit of each relay contact, and the other end of each relay contact is guided on the socket through circuit board, socket connects one to one through the input point on Adapter Cable and the PLC load module; The on-the-spot switching value signal of Industry Control is connected on respectively on removable terminal block row's the corresponding contact and common port.

2. imported relay module according to claim 1; It is characterized in that: each the relay coil two ends reverse parallel connection on the multilayer board has fly-wheel diode; 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, in addition, and at the two ends of 24V power supply; Be parallel with a loop of forming by light emitting diode and Chip-R, at negative pole, the common port of the 24V power supply stamp-mounting-paper diode of having connected respectively.

3. imported relay module according to claim 1 is characterized in that: described a plurality of relays are 16, are divided into two groups, and described socket is 26pinD type connector or hole, and described removable terminal block row is 10 joint removable terminal block rows.

4. imported relay module according to claim 1 is characterized in that: 1 Adapter Cable can be connected 32 high density load modules of 2 imported relay modules and 1 PLC.