CN201035356Y

CN201035356Y - Program controller composed of multiple sets of time relays and AC contactor

Info

Publication number: CN201035356Y
Application number: CNU2007200849748U
Authority: CN
Inventors: 梁伟; 张实
Original assignee: Dongfeng Automobile Co Ltd
Current assignee: Dongfeng Automobile Co Ltd
Priority date: 2007-05-30
Filing date: 2007-05-30
Publication date: 2008-03-12
Anticipated expiration: 2017-05-30

Abstract

The utility model provides a program controller composed of a plurality of groups of time relays and an alternating current contactor, which comprises n groups of time relays and an alternating current contactor, wherein each time relay comprises a coil L, at least one pair of time-delay closing instantaneous opening normally-open contacts K and time-delay opening instantaneous closing normally-closed contacts T, and each alternating current contactor comprises a coil L' and at least one normally-open contact J; the time delay disconnection instant closing normally closed contact T of the time relay in the same group is connected with the normally open contact J of the alternating current contactor in series, a time relay coil L of each group is connected with a coil L' of the alternating current contactor in parallel, and the time delay disconnection instant closing normally closed contact T of the time relay in the same group is connected with a coil power supply loop of the time relay in series; the time delay closing instant open contact Kn-1 of the former group of time relays and the time delay opening instant close normally closed contact Tn of the latter group of time relays are connected in series with the power supply loop of the latter group of coil power supplies; the first group of coil power supply circuits are connected in series with a starting switch, and a normally open contact J of the alternating current contactor is used as an output control end.

Description

The programming controller of forming by many groups time relay and A.C. contactor

Technical field

The utility model relates to a kind of programming controller of being made up of many groups time relay and A.C. contactor, is mainly used in the circuit that can realize robotization control in time of simple device or electrical installation.

Background technology

Present most of equipment or electrical installation are realized the mode of the robotization control PLC of employing programming Control more, if just indivedual strokes of simple device or electrical installation or process are programmed with PLC and are realized that temporal automatic control just will certainly increase cost, cause waste, and can not get effective utilization.

Summary of the invention

The purpose of this utility model is exactly in order to reduce simple appliances equipment (device) at the cost of realizing temporal robotization control, the programming controller that employing is made up of many groups time relay and A.C. contactor satisfies request for utilization, reaches the advantages of simplicity and high efficiency purpose.

The technical solution of the utility model: the programming controller of being made up of many groups time relay and A.C. contactor of the present utility model comprises the n group time relay and A.C. contactor, n is a positive integer, each time relay comprises that coil L, at least one pair of time closing instantaneous disconnection normally open contact K and time-delay disconnect instantaneous closed normally closed interlock T, and each A.C. contactor comprises coil L ', at least one normally open contact J; The time-delay of the time relay on the same group disconnects the normally open contact J series connection of closed normally closed interlock T of moment and A.C. contactor, coil L ' the parallel connection of every group time relay coil L and A.C. contactor, the time-delay of the time relay disconnects instantaneous closed normally closed contact T and is connected in its coil power current supply circuit on the same group; The time-delay of one group of time relay of the instantaneous disconnection normally open contact of the time closing of last group of time relay Kn-1 and back disconnects closed normally closed interlock Tn of moment and is connected in the one group of coil power current supply circuit in back; First group of coil power current supply circuit starting switch SB that also contacts, the normally open contact J of every group of A.C. contactor is as output control terminal.

Advantage of the present utility model: the utility model circuit structure is simple, and is cheap for manufacturing cost, and the time is adjusted simple and convenient, adjustable at any time, and use face widely.

Description of drawings

Fig. 1 is a line principle synoptic diagram of the present utility model.

Fig. 2 is the synoptic diagram that the utility model is applied to vacuum filling machine.

Embodiment

As Fig. 1: the utility model mainly contains the time relay (A1～An) and A.C. contactor (B1～Bn) form, n is a positive integer, each time relay comprises that ((K1～Kn) and time-delay disconnect instantaneous closed normally closed interlock T, and (T1～Tn), each A.C. contactor comprise coil L ' (L ' 1～L ' n), at least one normally open contact J (J1～Jn) to coil L for L1～Ln), the instantaneous disconnection normally open contact of at least one pair of time closing K; The time-delay of the time relay on the same group disconnects the normally open contact J series connection of closed normally closed interlock T of moment and A.C. contactor, coil L ' the parallel connection of every group time relay coil L and A.C. contactor, the time-delay of the time relay disconnects instantaneous closed normally closed contact T and is connected in its coil power current supply circuit on the same group; The time-delay of one group of time relay of the instantaneous disconnection normally open contact of the time closing of last group of time relay Kn-1 and back disconnects closed normally closed interlock Tn of moment and is connected in the one group of coil power current supply circuit in back; First group of coil power current supply circuit starting switch SB that also contacts, the normally open contact J of every group of A.C. contactor is as output control terminal.

Principle of work:

For a plurality of time relays are adjusted random time (time is as the criterion in the time relay model setting range), time relay A1 coil L1 get electric after, the time relay begins to clock by setting time, after arriving setting time, it is closed again that the time-delay of time relay A1 disconnects instantaneous closed normally closed interlock T1, just disconnected the coil L ' 1 of A.C. contactor B1, make A.C. contactor B1 stop outage work, the instantaneous closure of the instantaneous disconnection normally open contact of time closing K1 of time relay A1 once keeps off-state that the coil of the A.C. contactor two and the time relay two is got again simultaneously, and maintenance self-locking, A.C. contactor B2 picks up counting, disconnect the coil L ' 2 of A.C. contactor B2 behind the arrival setting up time again, make it to quit work, the rest may be inferred, time relay An and A.C. contactor Bn coil are got, disconnect A.C. contactor Bn coil once more after arriving setting up time, so just finished A.C. contactor by the time successively---dead electricity---next A.C. contactor gets---dead electricity, as this type of circulation, be connected to the current supply circuit of load at the normally open contact J1～Jn of A.C. contactor, just can realize realizing robotization control according to the time action of control load automatically successively.

The utility model by the time-delay of on the same group the time relay is disconnected moment closed normally closed interlock and the normally open contact of A.C. contactor be connected on the mode of the coil of the time relay of parallel connection on the same group and A.C. contactor, utilize time relay time-delay to disconnect instantaneous closed normally closed interlock and cut off self loop, disconnect the mode that normally open contact is connected on the coil of next group time relay in parallel and A.C. contactor by the time-delay of the last group of time relay being closed and closed moment, connect next group time relay in parallel and the loop of ac contactor coil with the instantaneous disconnection normally open contact of time closing, realize that with the combinational circuit of many group time relays the robotization control circuit system is the utility model technology like this.

Fig. 2 is the synoptic diagram application that the utility model is applied to vacuum filling machine:

Adopt the utility model to realize the automobile power steering system pump down, the moving robotization control of changeing the process of oil and the unnecessary pasta of resorption of filling is compared with similar PLC programming Control vacuum filling machine, cost have only its 30%, and the time can adjust at any time.

Course of work brief introduction:

The combinational circuit control evacuation process of the 1st group of time relay and A.C. contactor, the combinational circuit control of the 2nd group of time relay and A.C. contactor be towards the notes process, the combinational circuit control resorption process of the 3rd group of time relay and A.C. contactor.U1V1W1 is a three-phase alternating current among the figure, and PE is a ground wire.

Charging machine is connected electricity, gas, oil circuit, and filling gun is screwed in moving the commentaries on classics on the oil can, presses rifle head start button → pressure switch SB connection → while A.C. contactor B1 coil L ' 1 and gets, the vacuum pump that is connected on contactor starts, begin to find time, time relay A1 coil L1 gets electric, picks up counting, after arriving setting-up time, the time-delay of AI disconnects the instantaneous disconnection of instantaneous closed normally closed interlock T1, cuts off the loop of B1, the B1 dead electricity, vacuum pump stops, and finds time to finish.

The instantaneous closure of the instantaneous disconnection normally open contact of time closing K1 of A1 is connected next group and is dashed the loop of annotating circuit simultaneously, the coil L ' 2 that A.C. contactor B2 is connected on, the membrane pump that is connected on B2 starts, begin dash to annotate, the coil L2 of the time relay also electric, pick up counting, after arriving setting-up time, the time-delay of A2 disconnects the instantaneous disconnection of instantaneous closed normally closed interlock T2, cuts off the loop of B2, the B2 dead electricity, membrane pump stops, and dashes to annotate and finishes.

The instantaneous closure of the instantaneous disconnection normally open contact of time closing K2 of while A2, connect the loop of next group resorption circuit, the coil L ' 3 of A.C. contactor B3, the compressed air valve and the oil return valve that are connected on A3 are opened, pressurized air begin more than pasta blow oil sump tank, the resorption process begins, the coil L3 of time relay A3 gets, pick up counting, behind the arrival setting-up time, the A3 time-delay disconnects the instantaneous disconnection of instantaneous closed normally closed interlock T3, cut off the loop of B3, the B3 dead electricity, relevant each valve cuts out, and resorption stops.All processes finishes.

Core of the present utility model be by the time-delay of on the same group the time relay is disconnected moment closed normally closed interlock and the normally open contact of A.C. contactor be connected on the mode of the coil of the time relay of parallel connection on the same group and A.C. contactor; utilize time relay time-delay to disconnect instantaneous closed normally closed interlock and cut off self loop; disconnect the mode that normally open contact is connected on the coil of next group time relay in parallel and A.C. contactor by the time-delay of the last group of time relay being closed and closed moment; connect next group time relay in parallel and the loop of ac contactor coil with the instantaneous disconnection normally open contact of time closing; therefore; the combinational circuits of the above-mentioned many group time relays of every usefulness realize robotization control or be equal to replacement, be the protection domain of utility model.

Claims

1. programming controller of forming by many groups time relay and A.C. contactor, comprise the time relay and A.C. contactor, it is characterized in that: the n group time relay and A.C. contactor are arranged, n is a positive integer, each time relay comprises that coil L, at least one pair of time closing instantaneous disconnection normally open contact K and time-delay disconnect instantaneous closed normally closed interlock T, and each A.C. contactor comprises coil L ', at least one normally open contact J; The time-delay of the time relay on the same group disconnects the normally open contact J series connection of closed normally closed interlock T of moment and A.C. contactor, coil L ' the parallel connection of every group time relay coil L and A.C. contactor, the time-delay of the time relay disconnects instantaneous closed normally closed contact T and is connected in its coil power current supply circuit on the same group; The time-delay of one group of time relay of the instantaneous disconnection normally open contact of the time closing of last group of time relay Kn-1 and back disconnects closed normally closed interlock Tn of moment and is connected in the one group of coil power current supply circuit in back; First group of coil power current supply circuit starting switch SB that also contacts, the normally open contact J of every group of A.C. contactor is as output control terminal.