CN103000450B - Power-enable electromagnetic relay control device - Google Patents
Power-enable electromagnetic relay control device Download PDFInfo
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- CN103000450B CN103000450B CN201210435066.4A CN201210435066A CN103000450B CN 103000450 B CN103000450 B CN 103000450B CN 201210435066 A CN201210435066 A CN 201210435066A CN 103000450 B CN103000450 B CN 103000450B
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Abstract
The invention discloses a power-enable electromagnetic relay control device. The power-enabled electromagnetic relay control device is characterized by comprises a power enable module and a relay control module. The power enable module is connected with the relay control module and is used for powering the relay control module. The relay control module comprises a relay and is used for controlling output of the relay. The requirements for reliability and stability of the whole relay are improved, and misoperation of the relay is reduced effectively. A power enable circuit reuses multiple relays, and cost is lowered effectively.
Description
Technical field
The present invention relates to electronic circuit field, specifically, relate to the electromagnetic type relay control device that a kind of charged is enable.
Background technology
Relay (relay) is a kind of electric control device, is when the change of input variable (energizing quantity) reaches regulation requirement, makes controlled volume that a kind of electrical equipment of predetermined Spline smoothing occurs in electric output circuit.It has control system (also known as input circuit) and by the interactive relationship between control system (also known as output loop).Usually be applied in the control circuit of automation, it is actually the one " automatic switch " going to control big current running with small area analysis.Therefore play the effects such as automatic adjustment, safeguard protection, change-over circuit in circuit.
Control relay circuit conventional at present, generally only can introduce reset signal to the malfunction preventing relay in power up, this circuit can meet the demands in general occasion.But in the occasion that the reliability requirement to relay is very high, this circuit just can not meet requirement, in the application such as relaying protection, once relay misoperation, just likely cause the generation of large-area power-off and even more major break down.In this type of application, the reliability improving relay seems particularly important.
Therefore, the problems referred to above just become technical problem urgently to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention is to provide the enable electromagnetic type relay control device of a kind of charged, and to solve in the very high occasion of reliability requirement, relay conventional at present also can not meet the problem of stability requirement.
For solving the problems of the technologies described above, the invention provides the electromagnetic type relay control device that a kind of charged is enable, it is characterized in that, comprising: power enable module and relay control module; Wherein,
Described power enable module, is connected with described relay control module, for powering for described relay control module;
Described relay control module, be connected with described power enable module, it includes relay, and for controlling the output of this relay.
Further, wherein, described power enable module, comprising: power enable control module and power enable output module; Wherein,
Described power enable control module, is connected with described power enable output module, for controlling the output of the power enable of described power enable output module;
Described power enable output module, is connected with relay control module with described power enable control module, for receiving the index signal of described power enable control module, then output level, for described relay control module is powered.
Further, wherein, described power enable control module, comprising: at least one IO power enable port, gate module and reset signal module; Wherein,
Described IO power enable port, is connected with described gate module, for exporting the first order control signal of described power enable control module, is sent to described gate module;
Described gate module, is connected with IO power enable port, reset signal module and described power enable output module described at least one, respectively for judging described first order control signal, and according to result of determination output enable power supply signal;
Described reset signal module, is connected with described gate module, for providing reset signal, and malfunction when preventing described relay from powering on.
Further, wherein, described power enable output module, comprising: level switch module and controllable relays power supply; Wherein,
Described level switch module, is connected with power enable control module with described controllable relays power supply, for receiving the enable power supply signal that described power enable control module sends, and carries out level conversion to it;
Described controllable relays power supply, is connected with relay control module with described level switch module, for the level signal according to described level switch module, controls the presence or absence that relay control module is powered.
Further, wherein, described relay control module, comprising: relay output control module and relay output module; Wherein,
Described relay output control module, is connected with power enable module with described relay output module, and for receiving the power supply of described power enable module, the level controlling described relay output module exports;
Described relay output module, is connected with described relay output control module, for the output of the instruction control relay according to described relay output control module.
Further, wherein, described relay output control module, comprising: IO relay enable port, reseting module and logic module; Wherein,
Described IO relay enable port, is connected with power enable module with described gate module, and the logic as described gate module inputs, and control the output of described gate module, and then the conjunction of control relay divides together with reseting module;
Described reseting module, is connected with described logic module, for providing reset signal, and malfunction when preventing described relay from powering on, and as the input of Logic judgment, to control the output of described relay output module.
Described logic module, is connected with relay output module with described IO relay enable port, reseting module, for judging the signal that described IO relay enable port and reseting module export, and exports control signal according to result of determination.
Further, wherein, described relay output module comprises: amplification module and relay; Wherein,
Described amplification module, is connected with relay with described relay output control module, amplifies for the signal exported described logic module, thus carries out conjunction point operation to relay;
Described relay, is connected with described amplification module, for receiving the control signal from described amplification module, carrying out corresponding conjunction and dividing operation.
Compared with prior art, the electromagnetic type relay control device that a kind of charged of the present invention is enable reaches following effect:
1) invention increases the requirement of the reliability and stability of whole relay, effectively reduce the generation of relay misoperation;
2) the power enable circuit in the electromagnetic type relay control device that charged of the present invention is enable is that multicircuit relay is multiplexing, reaches the effect effectively reduced costs.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the enable electromagnetic type relay control device of a kind of charged described in the specific embodiment of the invention;
Fig. 2 is the power enable modular structure block diagram described in the specific embodiment of the invention;
Fig. 3 is the relay control module structured flowchart described in the specific embodiment of the invention.
Embodiment
Some vocabulary is employed to censure specific components in the middle of specification and claim.Those skilled in the art should understand, and hardware manufacturer may call same assembly with different noun.This specification and claims are not used as with the difference of title the mode distinguishing assembly, but are used as the criterion of differentiation with assembly difference functionally." comprising " mentioned in the middle of specification and claim is in the whole text an open language, therefore should be construed to " comprise but be not limited to "." roughly " refer to that in acceptable error range, those skilled in the art can solve the technical problem within the scope of certain error, reach described technique effect substantially.In addition, " couple " word comprise directly any at this and be indirectly electrically connected means.Therefore, if describe a first device in literary composition to be coupled to one second device, then represent described first device and directly can be electrically connected at described second device, or be indirectly electrically connected to described second device by other devices or connection means.Specification subsequent descriptions is for implementing better embodiment of the present invention, and right described description is to illustrate for the purpose of rule of the present invention, and is not used to limit scope of the present invention.Protection scope of the present invention is when being as the criterion depending on the claims person of defining.
Below in conjunction with accompanying drawing, the present invention is described in further detail, but not as a limitation of the invention.
As shown in Figure 1, be the electromagnetic type relay control device structured flowchart that charged described in the specific embodiment of the invention is enable, wherein, this device comprises: power enable module 10 and relay control module 20; Wherein,
Described power enable module 10, is connected with described relay control module 20, for powering for described relay control module 20.
Described relay control module 20, be connected with described power enable module 10, it includes relay, and for controlling the output of this relay.
As shown in Figure 2, be the module 10 of power enable described in specific embodiment of the invention structured flowchart, comprise: power enable control module 101 and power enable output module 102; Wherein,
Described power enable control module 101, is connected with described power enable output module 102, for controlling the output of the power enable of described power enable output module 102.
Described power enable output module 102, is connected with relay control module 20 with described power enable control module 101, and for the index signal according to described power enable control module 101, output level, for described relay control module 20 is powered.
Further, described power enable control module 101 comprises: at least one IO power enable port (being IO power enable port one 011 and IO power enable port one 012 in the present embodiment), gate module 1013 and reset signal (RST, Reset the connection) module 1014; Wherein,
Described IO power enable port one 011, is connected with described gate module 1013, exports the first order control signal of described power enable control module 101, is sent to described gate module 1013.In a particular embodiment, described first order control signal has high and low two states.
Described IO power enable port one 012, is connected with described gate module 1013, as described IO power enable port one 011, exports the first order control signal of described power enable control module 101, is sent to described gate module 1013.In a particular embodiment, described first order control signal has high and low two states.
Described gate module 1013, respectively with described IO power enable port one 011, IO power enable port one 012, reset signal (RST, Reset the connection) module 1014 and described power enable output module 102 be connected, for judging described first order control signal, and according to result of determination output enable power supply signal.
Described reset signal (RST, Reset the connection) module 1014, is connected with described gate module 1013, for providing reset signal, and malfunction when preventing described relay from powering on.
Further, described power enable output module 102, comprising: level switch module 1021 and controllable relays power supply 1022; Wherein,
Described level switch module 1021, is connected with power enable control module 101 with described controllable relays power supply 1022, for receiving the enable power supply signal that described power enable control module 101 sends, and carries out level conversion to it.
Described controllable relays power supply 1022, is connected with relay control module 20 with described level switch module 1021, for the level signal according to described level switch module 1021, controls the presence or absence that relay control module 20 is powered.
As shown in Figure 3, be the control module 20 of relay described in specific embodiment of the invention structured flowchart, comprise: relay output control module 201 and relay output module 202; Wherein,
Described relay output control module 201, is connected with described power enable module 10 with described relay output module 202, and the conjunction jointly controlling described relay output module 202 with described power enable module 10 divides.
Described relay output module 202, is connected with described source enable module 10 with described relay output control module 201, for the output according to the power supply of described power enable module 10 and the instruction control relay of described relay output control module 201.
Further, described relay output control module 201, comprising: IO relay enable port 2011, reseting module 2012 and logic module 2013; Wherein,
Described IO relay enable port 2011, be connected with power enable module 10 with described gate module 2013, logic as described gate module 2013 inputs, and control the output of described gate module 2013, and then the conjunction of control relay 2022 divides together with reseting module 2012.
Described reseting module 2012, is connected with described logic module 2013, for providing reset signal, and malfunction when preventing described relay from powering on, and as the input of Logic judgment, to control the output of described relay output module 202.
Described logic module 2013, be connected with relay output module 202 with described IO relay enable port 2011, reseting module 2012, for judging the signal that described IO relay enable port 2011 and reseting module 2012 export, and export control signal according to result of determination.
Further, described relay output module 202, comprise: what amplification module 2021 and relay 2022(adopted in the present embodiment is that electromagnetic type relay to which kind of relay of employing is not specifically limited certainly here, to those skilled in the art, any one relay all can be applicable to the present invention), wherein
Described amplification module 2021, is connected with relay 2022 with described relay output control module 201, amplifies for the signal exported described logic module 2013, thus carries out conjunction point operation to relay.
Described relay 2022, is connected with described amplification module 2021, for receiving the control signal from described amplification module 2021, carrying out corresponding conjunction and dividing operation.In a particular embodiment, when subscriber's line short circuit being detected, by carrying out conjunction point operation to relay, and then controlling the on/off switch operation of subscriber's line, accomplishing the object of protection automatically.
Gate module 1013 and the logic module 2013 mentioned in the present invention all belong to the device of same type, there is no any substantial difference, adopt which kind of model to belong to common practise here for those skilled in the art.In addition, reset signal module 1014 and reseting module 2012, and level switch module 1021 belongs to the above-mentioned type too with amplification module 2021, repeats no more here.
Specific embodiment
The enable electromagnetic type relay control device of charged of the present invention comprises: power enable module 10 and relay control module 20.Described power enable module 10 is powered for described relay control module 20; Described relay control module 20 includes relay, for controlling the output of this relay, what this relay adopted is electromagnetic type relay, certainly to which kind of relay of employing is not specifically limited here, to those skilled in the art, any one relay all can be applicable to the present invention.
Described power enable module 10 comprises: power enable control module 101 and power enable output module 102.Wherein, described power enable control module 101 comprises: IO power enable port one 011, IO power enable port one 012, gate module 1013 and reset signal (RST, Reset the connection) module 1014; Described power enable output module 102 comprises: level switch module 1021 and controllable relays power supply 1022.
Described power enable control module 101 exports index signal, also can be called control signal, and power enable control module 101 by controlling the high/low level of this signal, and then controls 102 parts whether out-put supply.
IO power enable port one 011 and IO power enable port one 012 are the first order control signals of power enable module, and first order control signal is by described gate module 1013, and its signal exported is as the control signal of described power enable output module 102.Each I/O port has high and low two states, and two I/O ports combine and can produce four kinds of states: " high, low ", " high, high ", " low, high ", " low, low ".Having a kind of logical combination (being such as designed to " high, low ") only finally can make power supply export by gate module 1013.Such benefit is, interference signal generally can cause IO_ power enable 1, IO_ power enable 2 becomes high or low simultaneously, and logical design is the one high and one low possibility that can reduce relay misoperation.Gate in gate module 1013 can be used for representing the logical relation existed between input signal and output signal.The input signal one of gate has three (described IO power enable port one 011, IO power enable port one 012, reset signal (RST herein, Reset the connection) module 1014), gate judges input signal, the unique one input only met the demands, can make gate output enable power supply signal.With directly control compared with enable output module 102, enable output module 102 is controlled again through one-level gate, can reduce the possibility of relay misoperation, and the introducing of reset signal (RST) is the malfunction caused in order to each input module state in anti-locking apparatus power up is unstable.
Can comprise triode in described level switch module 1021, object is level conversion, and increases driving force.Described controllable relays power supply 1022 can comprise CMOS tube.Why need level conversion, because first order input (IO power enable port one 011 and IO power enable port one 012) comes from the output pin of processor, its level grade is often Transistor-Transistor Logic level (transistor-transistor logic level), and rear class cmos circuit needs CMOS level to drive, so need this one-level level conversion.High level by TTL is converted into the high level that CMOS tube can identify, the low level of TTL is converted into the low level that CMOS tube can identify.It is controlled that CMOS tube makes controllable relays power supply export, and forms a controllable output power.Input as it using the output of described level switch module 1021 module, control the presence or absence of power supply according to the difference of input value.
Relay control module 20 comprises: relay output control module 201 and relay output module 202.Wherein, described relay output control module 201 comprises: IO relay enable port 2011, reseting module 2012 and logic module 2013; Described relay output module 202 comprises: amplification module 2021 and relay 2022.
Similar with described power enable control module 101, IO relay enable port 2011 and reseting module 2012 also input to logic module 2013 as index signal, through the judgement of logic module, export control signal and control next stage circuit.Amplification module 2021 can comprise triode, and the signal that described logic module 2013 exports is not enough to Direct driver relay, needs described amplification module 2021 to amplify the signal that described logic module 2013 exports, and just can carry out conjunction point operation to relay.Afterwards, described relay 2022 receives the control signal from described amplification module 2021, carries out corresponding conjunction and divides operation.Electromagnetic type relay is applied very wide in automation field, such as, in relay protection products, when subscriber's line short circuit being detected, by carrying out conjunction point operation to relay, and then controlling the on/off switch operation of subscriber's line, accomplishing the object of protection automatically.In this type products, the reliable operation of relay is particularly important.
Compared with prior art, the electromagnetic type relay control device that a kind of charged of the present invention is enable reaches following effect:
1) invention increases the requirement of the reliability and stability of whole relay, effectively reduce the generation of relay misoperation;
2) the power enable circuit in the electromagnetic type relay control device that charged of the present invention is enable is that multicircuit relay is multiplexing, reaches the effect effectively reduced costs.
Above-mentioned explanation illustrate and describes some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.
Claims (5)
1. the electromagnetic type relay control device that charged is enable, is characterized in that, comprising: power enable module and relay control module; Wherein,
Described power enable module, is connected with described relay control module, for powering for described relay control module;
Described relay control module, be connected with described power enable module, it includes relay, and for controlling the output of this relay;
Wherein, described power enable module, comprising: power enable control module and power enable output module; Wherein,
Described power enable control module, is connected with described power enable output module, for controlling the output of the power enable of described power enable output module;
Described power enable output module, is connected with relay control module with described power enable control module, for receiving the index signal of described power enable control module, then output level, for described relay control module is powered;
Wherein, described power enable control module, comprising: at least one IO power enable port, gate module and reset signal module; Wherein,
Described IO power enable port, is connected with described gate module, for exporting the first order control signal of described power enable control module, is sent to described gate module;
Described gate module, is connected with IO power enable port, reset signal module and described power enable output module described at least one, respectively for judging described first order control signal, and according to result of determination output enable power supply signal;
Described reset signal module, is connected with described gate module, for providing reset signal, and malfunction when preventing described relay from powering on.
2. the electromagnetic type relay control device that a kind of charged as claimed in claim 1 is enable, is characterized in that, described power enable output module, comprising: level switch module and controllable relays power supply; Wherein,
Described level switch module, is connected with power enable control module with described controllable relays power supply, for receiving the enable power supply signal that described power enable control module sends, and carries out level conversion to it;
Described controllable relays power supply, is connected with relay control module with described level switch module, for the level signal according to described level switch module, controls the presence or absence that relay control module is powered.
3. the electromagnetic type relay control device that a kind of charged as claimed in claim 1 is enable, is characterized in that, described relay control module, comprising: relay output control module and relay output module; Wherein,
Described relay output control module, is connected with power enable module with described relay output module, and for receiving the power supply of described power enable module, the level controlling described relay output module exports;
Described relay output module, is connected with described relay output control module, for the output of the instruction control relay according to described relay output control module.
4. the electromagnetic type relay control device that a kind of charged as claimed in claim 3 is enable, is characterized in that, described relay output control module, comprising: IO relay enable port, reseting module and logic module; Wherein,
Described IO relay enable port, is connected with power enable module with described gate module, and the logic as described gate module inputs, and control the output of described gate module, and then the conjunction of control relay divides together with reseting module;
Described reseting module, is connected with described logic module, for providing reset signal, and malfunction when preventing described relay from powering on, and as the input of Logic judgment, to control the output of described relay output module;
Described logic module, is connected with relay output module with described IO relay enable port, reseting module, for judging the signal that described IO relay enable port and reseting module export, and exports control signal according to result of determination.
5. the electromagnetic type relay control device that a kind of charged as claimed in claim 4 is enable, is characterized in that, described relay output module comprises: amplification module and relay; Wherein,
Described amplification module, is connected with relay with described relay output control module, amplifies for the signal exported described logic module, thus carries out conjunction point operation to relay;
Described relay, is connected with described amplification module, for receiving the control signal from described amplification module, carrying out corresponding conjunction and dividing operation.
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| CN201210435066.4A CN103000450B (en) | 2012-11-05 | 2012-11-05 | Power-enable electromagnetic relay control device |
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| CN201210435066.4A CN103000450B (en) | 2012-11-05 | 2012-11-05 | Power-enable electromagnetic relay control device |
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| CN103000450B true CN103000450B (en) | 2015-04-01 |
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| US2930942A (en) * | 1957-05-08 | 1960-03-29 | Levine Solomon | Complementary symmetry transistor coincidence detector |
| EP0720417B1 (en) * | 1994-12-31 | 2003-04-09 | Lg Electronics Inc. | Relay driving apparatus for microwave oven |
| WO2002099605A2 (en) * | 2001-06-07 | 2002-12-12 | Mark Salerno | Method and apparatus for modular embedded control system |
| CN2814770Y (en) * | 2005-05-24 | 2006-09-06 | 陈炳杰 | Double-electric source automatic changeover switch controller |
| CN201336251Y (en) * | 2009-01-23 | 2009-10-28 | 东南大学 | Intelligent control device of a permanent magnet alternating current contactor |
| CN102436972A (en) * | 2011-10-17 | 2012-05-02 | 河南汉威电子股份有限公司 | Output control circuit of differential relay |
| CN202917395U (en) * | 2012-11-05 | 2013-05-01 | 北京易艾斯德科技有限公司 | Electromagnetic relay control device with power supply enable module |
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