CN204721329U - Electronics superconduct solid-state relay - Google Patents
Electronics superconduct solid-state relay Download PDFInfo
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- CN204721329U CN204721329U CN201520455507.6U CN201520455507U CN204721329U CN 204721329 U CN204721329 U CN 204721329U CN 201520455507 U CN201520455507 U CN 201520455507U CN 204721329 U CN204721329 U CN 204721329U
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Abstract
The utility model discloses a kind of electronics superconduct solid-state relay, this electronics superconduct solid-state relay comprises auxiliary power circuit, Width funtion constant-current drive circuit, sequential control circuit, and AUTOMOTIVE RELAY and solid-state relay; Designed by defect of the prior art, by a novel super solid-state relay that electronic device and relay combine.It has following characteristics: 1 easy for installation heating occupies little space without the need to heat abstractor; 2 self power consumption little (being less than 2.5W); The 3 application scopes of application are wide (exchanges money, control voltage alternating current-direct current 7-450V.Direct current money control voltage 3-60V); 4 can directly use startup, stop button control do not need accessory power supply just can control major loop; 5 anti-overload ability are by force 2 times of volume electric current.
Description
Technical field
The utility model relates to technical field of electronic components, is specially a kind of electronics superconduct solid-state relay.
Background technology
Solid-state relay (SOLIDSTATE RELAYS), be abbreviated as " SSR ", it is a kind of novel noncontacting switch device be all made up of solid state electrical components, it utilizes electronic component (as switch triode, the semiconductor device etc. such as bidirectional triode thyristor) switching characteristic, the object of contactless no-spark ground make-and-break contact can be reached, therefore be otherwise known as " noncontacting switch ", it is come out the seventies, due to its non-contact work characteristic, it is made to be widely used in Industry Control, many fields such as automatically controlled and computer control aspect obtain extensive use day by day.
There is following defect in the solid-state relay seen in the market.Anti-overload ability is poor, and self power consumption is large, needs add enough large heat abstractor guarantee trouble free service, and range of application is wide not.
Common solid-state relay consumes energy, it is exactly a very large numeral, be multiplied by for the electric current of the power consumption 80A of certain brand solid-state relay the electric energy (electric energy that the even maximum pressure drop of some producer is wasted up to 5Vrms is larger) that maximum pressure drop 1.5VVrms will consume about 120W, every platform uses the equipment of solid-state relay to have several even tens electric energy hundreds ofs consumed to several kilowatts.The whole nation has the equipment of thousands of use solid-state relay to run every day.The electric energy of expense is allowed every day to well imagine in vain.
Between the general contact of existing solid-state relay and contact, voltage is AC500V, when between contact, electric current reaches 80A maximum switched voltage only have 14V can not with higher voltage switching, this is because produce electric arc when switching and burn out contact.When contact is cut-off wherein, if supply voltage is more than 12 ~ 20V, the electric current be disconnected is more than 0.25 ~ 1A, and the gas of approximate cylinder that can produce an extreme temperatures in contact gap (arc gap), send high light and can conduct electricity, is called electric arc.Electric arc is a kind of special shape of gas discharge, and the form of gas discharge is a lot, has corona discharge, glow discharge, sparkover and arc discharge etc.When there is electric arc when between switch contact, insulation is also jeopardized in its scaling loss contact, even may cause phase fault, or device for switching is exploded under most serious conditions, forms fire, affects safe operation of power system.Therefore in Electrical Appliances, study the object of electric arc, mainly lay particular emphasis on the rule grasped electric arc and produce and extinguish, explore and take adequate measures with extinguish arcs.Electric arc is found in the initial stage in 19th century, and that is that people also only understand that electric arc is elongated change to be extinguished.Nearly recent decades, very fast to the research and development of electric arc, the Mathematical Modeling of electric arc comes into one's own day by day, utilizes electronic computer can calculate dynamic process and the relevant parameters of electric arc.But due to the complexity of arc process, correctly arc control device to be designed, also must a large amount of scientific experiment and constantly sum up raising from production practices.
Utility model content
The purpose of this utility model is just to provide a kind of electronics superconduct solid-state relay, and the utility model, for designed by defect of the prior art, is a novel super solid-state relay having electronic device and relay to combine.There is following characteristics: 1 easy for installation heating occupies little space without the need to heat abstractor; 2 self power consumption little (being less than 2.5W); The 3 application scopes of application are wide (exchanges money, control voltage alternating current-direct current 7-450V.Direct current money control voltage 3-60V); 4 can directly use startup, stop button control do not need accessory power supply just can control major loop; 5 anti-overload ability are by force 2 times of volume electric current.
The technical scheme realizing above-mentioned purpose is: the utility model electronics superconduct solid-state relay comprises auxiliary power circuit, Width funtion constant-current drive circuit, sequential control circuit, and AUTOMOTIVE RELAY and solid-state relay; Auxiliary power circuit exports two-way voltage signal and is connected respectively in sequential control circuit and AUTOMOTIVE RELAY, the output of Width funtion constant-current drive circuit is connected to the input of sequential control circuit, output one tunnel of sequential control circuit connects the input of solid-state relay, the output of sequential control circuit is separately leaded up to relay and is driven and connect and drive AUTOMOTIVE RELAY, the output of AUTOMOTIVE RELAY and the output-parallel of solid-state relay;
Auxiliary power circuit comprises accessory power supply AC port, 1000V rectification circuit, power management chip, high frequency transformer, three terminal regulator, or comprises accessory power supply DC port, power management chip, high frequency transformer, three terminal regulator, Width funtion constant-current drive circuit comprises control inputs AC port, 1000V rectification circuit and Width funtion constant-current driven chip, or comprises control inputs DC port and Width funtion constant-current driven chip, sequential control circuit comprises photoelectrical coupler, Schmidt's shaping output circuit one, Schmidt's shaping output circuit two, Schmidt's shaping output circuit three, Schmidt swings to output circuit, Schmidt's shaping output circuit four, Schmidt is output circuit in the same way, Schmidt's shaping output circuit six of Schmidt's shaping output circuit five and startup reset response, described accessory power supply AC port connects the input of 1000V rectification circuit, the input of the output connection power management chip of 1000V rectification circuit or accessory power supply DC port directly connect the input of power management chip, the output of power management chip connects the input of high frequency transformer, output one tunnel of high frequency transformer connects AUTOMOTIVE RELAY, another road of the output of high frequency transformer connects the input of three terminal regulator, and each Schmidt's output circuit that the output of three terminal regulator connects in sequential control circuit provides burning voltage signal to it, in described Width funtion constant-current drive circuit, control inputs AC port connects the input of 1000V rectification circuit, the output of 1000V rectification circuit connects the input of Width funtion constant-current driven chip, or control inputs DC port directly connects the input of Width funtion constant-current driven chip, the output of Width funtion constant-current driven chip connects the input of photoelectrical coupler in sequential control circuit, the output of photoelectrical coupler connects the input of Schmidt's shaping output circuit one, output one tunnel of Schmidt's shaping output circuit one is connected respectively to the input of Schmidt's shaping output circuit three and Schmidt's shaping output circuit four, the output of Schmidt's shaping output circuit three is connected to the input that Schmidt swings to output circuit, the output of swinging to output circuit is connected to the photoisolator of solid-state relay by the output of Schmidt's shaping output circuit five, the output of Schmidt's shaping output circuit four is connected to the input of Schmidt's output circuit in the same way, and the output of Schmidt's output circuit in the same way exports the photoisolator being connected to solid-state relay by Schmidt's shaping output circuit five, another road of output of Schmidt's shaping output circuit one connects the input of Schmidt's shaping output circuit two, Schmidt's shaping output circuit two exports the photoisolator being connected to solid-state relay by Schmidt's shaping output circuit five, output one tunnel starting Schmidt's shaping output circuit six of reset response connects Schmidt's shaping output circuit one, and another road of output starting Schmidt's shaping output circuit six of reset response connects Schmidt's shaping output circuit five, the controllable silicon of the photoisolator output signal connection control solid-state relay of solid-state relay, the controllable silicon output port of solid-state relay and AUTOMOTIVE RELAY normally opened contact in parallel, with the output port Parallel opertation of AUTOMOTIVE RELAY.
Operation principle of the present utility model is: incoming transport electricity 85-260V or direct current, and the 12V of accessory power supply work stable output, for relay, exports 5V for sequential control circuit through three terminal regulator.In control input end input AC or direct current 7-450V12-0.1MA control voltage, constant-current drive circuit provides the glow current of 10MA to photoisolator, the conducting of photoisolator output, Continuity signal exports two-way logical signal through timing distributor, the first via first allows solid-state relay controlled silicon conducting, after controlled silicon conducting, between AUTOMOTIVE RELAY contact, voltage is very low, for being no more than the electric current of 80A, controllable silicon two ends maximum pressure drop 1.5Vrms, the condition produced well below electric arc due to 1.5Vrms voltage is so can not produce electric arc.Second road signal makes AUTOMOTIVE RELAY adhesive, and after AUTOMOTIVE RELAY adhesive 10 milliseconds, first via signal disconnects the controllable silicon cut-off of solid-state relay.Solid-state relay silicon controlled ON time is short, only less than 10MS so caloric value is very little.After control end disconnects interchange or direct-current control voltage, the first via first outputs signal and makes electric current and voltage between solid-state relay controlled silicon conducting shunt relay contact, and AUTOMOTIVE RELAY contact disconnects; Lower than electric arc Production conditions when contact disconnects, between contact, there is no electric arc; While AUTOMOTIVE RELAY disconnects, after first via signal lag 5 milliseconds, controlled loop turns off, and completes whole control procedure.
Superconduct solid-state relay described in the utility model is divided into AC and DC two, Width funtion constant current drived control input port, input voltage exchanges or direct current, input voltage, by 1000V rectification circuit, provides power supply (direct current money uses the Width funtion constant-current driven chip chip of another model and RCL to form 10mA constant-current source) 10mA constant current to provide stable operating current to photoelectrical coupler to after rectifying and wave-filtering Width funtion constant-current driven chip.
Time schedule controller circuit working principle: the Schmidt's rectifying output circuit six starting reset response after energising, makes (strong jamming and uncertain signal are closed) loop of output close locking by force.Sequencing control: control inputs port input voltage 7-400V photoelectrical coupler receives 10mA enabling signal, and output becomes low-resistance both end voltage from high resistant and becomes 1 from 0.Square wave start signal is exported after the two pairs of signal shapings of Schmidt's rectifying output circuit; Export square-wave signal and become 1 from 0, voltage instantaneous becomes 1 from 0.Schmidt's rectifying output circuit two and Schmidt swing to the Continuity signal that output exports 10mS instantaneously and drive controllable silicon by the first conducting of controllable silicon by the photoelectrical coupler in solid-state relay again.Export square wave start signal simultaneously after the two pairs of signal shapings of Schmidt's rectifying output circuit and form delay circuit, another road pin of Schmidt's rectifying output circuit two exports AUTOMOTIVE RELAY start signal makes AUTOMOTIVE RELAY play the object of AUTOMOTIVE RELAY contact without arc starting than adhesive after a few mS of controllable silicon time delay (because the be open to the traffic normally opened contact both end voltage of relay of controllable silicon guide is very low, can not produce electric arc).
The control inputs port (AC/DC two is spent money) of wide-voltage constant current circuit inputs electric deenergization, in sequential control circuit, photoelectrical coupler no current passes through (shutdown signal) without Continuity signal, in Schmidt's rectifying output circuit two, electric capacity reverse charging exports instantaneously and makes controlled silicon conducting in solid-state relay afterwards, because electric capacity both end voltage can not be suddenlyd change, controllable silicon is conducting always.Until to capacitor charging more than 1/2 time controllable silicon just close, time about 10mS; Export square wave start signal after process Schmidt's rectifying output circuit two pairs of signal shapings simultaneously to be therewith closed, the discharge lag of circuit works to export on another road and AUTOMOTIVE RELAY is closed, and AUTOMOTIVE RELAY lags behind a few mS break contact of controlled silicon conducting and connects.Because silicon controlled conducting contact both end voltage is lower than an arc condition of electric arc, so relay contact disconnects without arc.Play relay without arc big current on-off effect.
The principle of auxiliary power circuit: accessory power supply port, exchanges money and direct current money input voltage enters 1000V rectifier bridge after capacitor filtering is level and smooth by starting resistance and fuse common mode filtering.The direct voltage exported, at the voltage by being made up of AC-DC converter (off-line switch) stable output+12V the original paper such as power management chip and high frequency transformer, provides required electric energy to AUTOMOTIVE RELAY and sequential control circuit.
The beneficial effects of the utility model are: the utility model, for above-mentioned faultiness design of the prior art, is a novel super solid-state relay combined by electronic device and relay.There is following characteristics: 1 easy for installation heating occupies little space without the need to heat abstractor; 2 self power consumption little (being less than 2.5W); The 3 application scopes of application are wide (exchanges money, control voltage alternating current-direct current 7-450V.Direct current money control voltage 3-60V); 4 can directly use startup, stop button control do not need accessory power supply just can control major loop; 5 anti-overload ability are by force 2 times of volume electric current.
Following table is the form that common solid-state relay compares with electronics superconduct relay
Can find out with reference to upper table data:
1 installs and does not need radiator and radiating fan, and this can reduce volume, can life-span of extension device owing to substantially not generating heat.
2 self little power consumption, one day (8 hours at full capacity) an of relay, just can reduce power consumption about 0.7 kilowatt.
3 scopes of application are wide, exchange money and directly can use startup, stop button.The voltage of use 220 or 380V carries out control operation and separately need not add accessory power supply.(direct current money can not use 220 or 380V control.)
Accompanying drawing explanation
Fig. 1 is the functional-block diagram of the utility model embodiment.
Embodiment
A kind of electronics superconduct of the utility model embodiment solid-state relay comprises auxiliary power circuit as shown in Figure 1, Width funtion constant-current drive circuit, sequential control circuit, and AUTOMOTIVE RELAY (adoptable model is JD2912-1H-12) and solid-state relay (adoptable model is BTA41-600); Auxiliary power circuit exports two-way voltage signal and is connected respectively in sequential control circuit and AUTOMOTIVE RELAY, the output of Width funtion constant-current drive circuit is connected to the input of sequential control circuit, output one tunnel of sequential control circuit connects the input of solid-state relay, the output of sequential control circuit is separately leaded up to relay and is driven and connect and drive AUTOMOTIVE RELAY, the output of AUTOMOTIVE RELAY and the output-parallel of solid-state relay.
Auxiliary power circuit comprises accessory power supply AC port, 1000V rectification circuit, power management chip (adoptable model is TOP222G), high frequency transformer (adoptable model is EE16), three terminal regulator (adoptable model is LC7550) or comprise accessory power supply DC port and power management chip (adoptable model is TOP222G), high frequency transformer (adoptable model is EE16), three terminal regulator (adoptable model is LC7550).Width funtion constant-current drive circuit comprises control inputs AC port, and 1000V rectification circuit exchanges HV9910H with Width funtion constant-current driven chip) or comprise control inputs DC port and Width funtion constant-current driven chip (adoptable model is SW5305).Sequential control circuit comprises photoelectrical coupler (adoptable model is PC817), Schmidt's shaping output circuit one, Schmidt's shaping output circuit two, Schmidt's shaping output circuit three, Schmidt swings to output circuit, Schmidt's shaping output circuit four, Schmidt is output circuit in the same way, Schmidt's shaping output circuit six of Schmidt's shaping output circuit five and startup reset response.Described accessory power supply AC port connects the input of 1000V rectification circuit, the input of the output connection power management chip of 1000V rectification circuit or accessory power supply DC port directly connect the input of power management chip, the output of power management chip connects the input of high frequency transformer, output one tunnel of high frequency transformer connects AUTOMOTIVE RELAY, another road of the output of high frequency transformer connects the input of three terminal regulator, and each Schmidt's output circuit that the output of three terminal regulator connects in sequential control circuit provides burning voltage signal to it, in described Width funtion constant-current drive circuit, control inputs AC port connects the input of 1000V rectification circuit, the output of 1000V rectification circuit connects the input of Width funtion constant-current driven chip, or control inputs DC port directly connects the input of Width funtion constant-current driven chip, the output of Width funtion constant-current driven chip connects the input of photoelectrical coupler in sequential control circuit, the output of photoelectrical coupler connects the input of Schmidt's shaping output circuit one, output one tunnel of Schmidt's shaping output circuit one is connected respectively to the input of Schmidt's shaping output circuit three and Schmidt's shaping output circuit four, the output of Schmidt's shaping output circuit three is connected to the input that Schmidt swings to output circuit, the output of swinging to output circuit is connected to the photoisolator of solid-state relay by the output of Schmidt's shaping output circuit five, the output of Schmidt's shaping output circuit four is connected to the input of Schmidt's output circuit in the same way, and the output of Schmidt's output circuit in the same way exports the photoisolator being connected to solid-state relay by Schmidt's shaping output circuit five, another road of output of Schmidt's shaping output circuit one connects the input of Schmidt's shaping output circuit two, Schmidt's shaping output circuit two exports the photoisolator being connected to solid-state relay by Schmidt's shaping output circuit five, Schmidt's shaping output circuit six output one tunnel starting reset response connects Schmidt's shaping output circuit one, and another road starting Schmidt's shaping output circuit six output of reset response connects Schmidt's shaping output circuit five, controllable silicon (model BTA41-600) output port of the photoisolator output signal connection control solid-state relay of solid-state relay, the controllable silicon output port of solid-state relay and AUTOMOTIVE RELAY normally opened contact in parallel, with the output port Parallel opertation (photoisolator of solid-state relay can adopt model MOC305 series) of AUTOMOTIVE RELAY.
Claims (2)
1. electronics superconduct solid-state relay, is characterized in that: this superconduct solid-state relay comprises auxiliary power circuit, Width funtion constant-current drive circuit, sequential control circuit, and AUTOMOTIVE RELAY and solid-state relay; Auxiliary power circuit exports two-way voltage signal and is connected respectively in sequential control circuit and AUTOMOTIVE RELAY, the output of Width funtion constant-current drive circuit is connected to the input of sequential control circuit, output one tunnel of sequential control circuit connects the input of solid-state relay, the output of sequential control circuit is separately leaded up to relay and is driven and connect and drive AUTOMOTIVE RELAY, the output of AUTOMOTIVE RELAY and the output-parallel of solid-state relay.
2. electronics superconduct solid-state relay according to claim 1, it is characterized in that: auxiliary power circuit comprises accessory power supply AC port, 1000V rectification circuit, power management chip, high frequency transformer, three terminal regulator, or comprise accessory power supply DC port, power management chip, high frequency transformer, three terminal regulator, Width funtion constant-current drive circuit comprises control inputs AC port, 1000V rectification circuit and Width funtion constant-current driven chip, or comprises control inputs DC port and Width funtion constant-current driven chip, sequential control circuit comprises photoelectrical coupler, Schmidt's shaping output circuit one, Schmidt's shaping output circuit two, Schmidt's shaping output circuit three, Schmidt swings to output circuit, Schmidt's shaping output circuit four, Schmidt is output circuit in the same way, Schmidt's shaping output circuit six of Schmidt's shaping output circuit five and startup reset response, described accessory power supply AC port connects the input of 1000V rectification circuit, the input of the output connection power management chip of 1000V rectification circuit or accessory power supply DC port directly connect the input of power management chip, the output of power management chip connects the input of high frequency transformer, output one tunnel of high frequency transformer connects AUTOMOTIVE RELAY, another road of the output of high frequency transformer connects the input of three terminal regulator, and each Schmidt's output circuit that the output of three terminal regulator connects in sequential control circuit provides burning voltage signal to it, in described Width funtion constant-current drive circuit, control inputs AC port connects the input of 1000V rectification circuit, the output of 1000V rectification circuit connects the input of Width funtion constant-current driven chip, or control inputs DC port directly connects the input of Width funtion constant-current driven chip, the output of Width funtion constant-current driven chip connects the input of photoelectrical coupler in sequential control circuit, the output of photoelectrical coupler connects the input of Schmidt's shaping output circuit one, output one tunnel of Schmidt's shaping output circuit one is connected respectively to the input of Schmidt's shaping output circuit three and Schmidt's shaping output circuit four, the output of Schmidt's shaping output circuit three is connected to the input that Schmidt swings to output circuit, the output of swinging to output circuit is connected to the photoisolator of solid-state relay by the output of Schmidt's shaping output circuit five, the output of Schmidt's shaping output circuit four is connected to the input of Schmidt's output circuit in the same way, and the output of Schmidt's output circuit in the same way exports the photoisolator being connected to solid-state relay by Schmidt's shaping output circuit five, another road of output of Schmidt's shaping output circuit one connects the input of Schmidt's shaping output circuit two, Schmidt's shaping output circuit two exports the photoisolator being connected to solid-state relay by Schmidt's shaping output circuit five, output one tunnel starting Schmidt's shaping output circuit six of reset response connects Schmidt's shaping output circuit one, and another road of output starting Schmidt's shaping output circuit six of reset response connects Schmidt's shaping output circuit five, the controllable silicon of the photoisolator output signal connection control solid-state relay of solid-state relay, the controllable silicon output port of solid-state relay and AUTOMOTIVE RELAY normally opened contact in parallel, with the output port Parallel opertation of AUTOMOTIVE RELAY.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455507.6U CN204721329U (en) | 2015-06-29 | 2015-06-29 | Electronics superconduct solid-state relay |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520455507.6U CN204721329U (en) | 2015-06-29 | 2015-06-29 | Electronics superconduct solid-state relay |
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| CN204721329U true CN204721329U (en) | 2015-10-21 |
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| CN201520455507.6U Withdrawn - After Issue CN204721329U (en) | 2015-06-29 | 2015-06-29 | Electronics superconduct solid-state relay |
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| CN (1) | CN204721329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953998A (en) * | 2015-06-29 | 2015-09-30 | 河北佐佑众工合成材料制品有限公司 | Electronic superconducting type solid state relay |
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2015
- 2015-06-29 CN CN201520455507.6U patent/CN204721329U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953998A (en) * | 2015-06-29 | 2015-09-30 | 河北佐佑众工合成材料制品有限公司 | Electronic superconducting type solid state relay |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20180202 |
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| AV01 | Patent right actively abandoned |