CN201956640U - Special logic control power module for snow melt - Google Patents
Special logic control power module for snow melt Download PDFInfo
- Publication number
- CN201956640U CN201956640U CN2010205792894U CN201020579289U CN201956640U CN 201956640 U CN201956640 U CN 201956640U CN 2010205792894 U CN2010205792894 U CN 2010205792894U CN 201020579289 U CN201020579289 U CN 201020579289U CN 201956640 U CN201956640 U CN 201956640U
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- snow melt
- solid
- logic control
- power
- state relay
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Abstract
A special logic control power module for snow melt adopts the structure that four sets of solid-state relay units are arranged in an insulation housing and interlocked to form an AND gate logic control circuit; the AND gate logic control circuit is used for executing four judgment signals input by a snow melt sensor and outputting power signals according to the set programs to drive a snow melt heating power-output module to melt snow and ice; a current-limiting resistor, an overvoltage bleeder resistor and an input trigger-signal display lamp are arranged at the trigger input end of each solid-state relay; surge transient-voltage absorption and suppression voltage-sensitive elements are arranged at the power input end and the power output end of each solid-state relay; a surge transient-voltage absorption and suppression voltage-sensitive element is also arranged between a total input terminal and a total output terminal of a logic control power module for realizing double protection; and each solid-state relay is provided with an independent power output terminal for driving the corresponding control unit. The special logic control power module for snow melt is connected with an external circuit through a redundant double-backup socket.
Description
Technical field
The utility model relates to snow melt special logic power controlling modular solid state circuit arrangement, and it is used for carrying out four kinds of switching signals of snow melt transducer input, by the logic control program of setting, starts the snow melt heater circuit and carries out the snow melt ice-melt.
Background technology
At present, known logic control circuit generally all adopts discrete component or relay circuit to realize the logic control function, discrete component circuit complexity, relay assembly line are many, there are spark and impulse disturbances in the contact, be not suitable for explosion-proof occasion and noiseless occasion, the fault point is many, field service difficulty, known snow melt technology also do not have snow melt special logic power controlling modular solid state circuit.
Summary of the invention
, relay contact many for the circuit complexity, the relay assembly line that overcome the multistage Combinational Logic Control circuit of discrete component or relay has spark and impulse disturbances, be not suitable for explosion-proof occasion and noiseless occasion, solder joint contact point is many, break down easily, the deficiency of field service difficulty, the utility model provides a kind of snow melt special logic power controlling module drive device.
The technical scheme that its technical problem that solves the utility model adopts is: four groups of solid-state relay unit are set in insulation crust form and the gate logic control circuit with interlock mode; be used for carrying out four kinds of judgement signals of snow melt transducer input; and according to setting program power output signal driving snow melt heating power output module enforcement snow melt respectively; ice-melt; each solid-state relay triggers input and is provided with current-limiting resistance; overvoltage bleed off resistance and input triggering signal display lamp; power supply input at each solid-state relay; the power output is provided with the surge transient voltage and absorbs the inhibition pressure cell; always import at the logic control power model; between lead-out terminal; also be provided with the power surge transient voltage and absorb inhibition pressure cell realization duplicate protection; each group solid-state relay all is provided with independently power take-off simultaneously; be used for driving the control corresponding parts; be connected by redundant double copies socket with external circuit, whole with the sealing of electronics sealing pouring adhesive.
The beneficial effects of the utility model are, snow melt special logic power controlling module adopts the solid-state circuit combination, input and output are isolated, drive circuit is simple, and noiseless and spark pulse are disturbed, the power output drive signal, snow melt special logic power controlling module is provided with the logic state indicator light, be connected by the double copies socket circuit with external circuit, need only change module plug-in according to led status during maintenance, make things convenient for the failure judgment reparation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Among Fig. 1: 1.. solid-state relay (SSR1, SSR2, SSR3; SSR4), 2.. trigger input protection resistor (R1, R3; R5, R7), 3.. trigger dividing potential drop bleed off resistance (R2; R4; R6, R8), 4.. trigger input signal indicator light (D1; D2; D3, D4), 5.. subdivision surge transient voltage absorbs and suppresses pressure cell (RV1; RV2; RV3, RV4), 6.. module surge transient voltage absorbs and suppresses pressure cell RV5; 7.. the sub-IN5 of logic control power model solid-state circuit device control voltage input terminal; 8.. solid-state relay lead-out terminal (OUT1, OUT2, OUT3; OUT4); 9.. the sub-IN6 of logic control power model solid-state circuit device control voltage input terminal, 10.. and the sub-OUT5 of logic control power model solid-state circuit device control voltage output end. solid-state relay triggering signal input terminal (IN1; IN2, IN3.IN4).
Embodiment
In Fig. 1,2 four output signals of humidity 1, humidity 2, temperature 1, temperature of snow melt transducer output are received (the IN1 of solid-state relay input terminal ⑾ respectively, IN2, IN3, IN4) on, four solid-state relays 1. (SSR1-SSR4) are formed logic control circuit with the series connection interlock mode, are the logical relations with door.That is to say by the 7. voltage of IN5 input of control voltage input terminal, only triggering signal is arranged through triggering input protection resistor 2. (R1, R3, R5 at solid-state relay input terminal ⑾, R7), trigger dividing potential drop bleed off resistance 3. (R2, R4, R6, R8) after the input conducting, solid-state relay is (SSR1, SSR2, SSR3 1., SSR4) output is (OUT1 8., OUT2, OUT3 OUT4) just has voltage to occur accordingly, trigger 4. (D1 of input signal indicator light, D2, D3, D4) luminous demonstration simultaneously when triggering signal arrives; Each unit and logical relation determined to have only all conductings of each element circuit, total output just has voltage output, that is to say from the total input of module 7., driving voltage this moment of 9. IN5, IN6 input just can drive heater circuit and be started heating by 10. (OUT5) output.Four solid-state relays 1. in (SSR1-SSR4) any a tunnel right of veto by one vote is all arranged; Each unit surge transient voltage absorbs and suppresses 5. (RV1 of pressure cell; RV2; RV3; RV4) be connected between each solid-state relay input and output terminal; module surge transient voltage absorbs and suppresses pressure cell 6. (RV5); be connected between the module input and output terminal, disturb, realize dual security protection by the surge and the ringing pulse of multistage absorption power supply.
Claims (3)
1. snow melt special logic power controlling module, it is characterized in that: be four groups of solid-state relay unit to be set form and the gate logic control circuit in insulation crust with interlock mode, be used for carrying out four kinds of judgement switching signals of snow melt transducer input, and the power output signal drives snow melt heating power output module enforcement snow melt, ice-melt respectively.
2. snow melt special logic power controlling module according to claim 1 is characterized in that: each solid-state relay triggers input and is provided with current-limiting resistance, overvoltage bleed off resistance and input triggering signal display lamp.
3. snow melt special logic power controlling module according to claim 1, it is characterized in that: power supply input, power output at each solid-state relay are provided with surge transient voltage absorption inhibition pressure cell, always import at the logic control power model, between lead-out terminal, also be provided with the power surge transient voltage and absorb the inhibition pressure cell, each group solid-state relay all has independently lead-out terminal, be used for driving the control corresponding parts, be connected by redundant double copies socket with external circuit, whole with the sealing of electronics sealing pouring adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205792894U CN201956640U (en) | 2010-10-27 | 2010-10-27 | Special logic control power module for snow melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205792894U CN201956640U (en) | 2010-10-27 | 2010-10-27 | Special logic control power module for snow melt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956640U true CN201956640U (en) | 2011-08-31 |
Family
ID=44500742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205792894U Expired - Fee Related CN201956640U (en) | 2010-10-27 | 2010-10-27 | Special logic control power module for snow melt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956640U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826860A (en) * | 2016-05-04 | 2016-08-03 | 国网新疆电力公司哈密供电公司 | Method for melting ice and snow of transmission line |
| CN112886954A (en) * | 2021-04-01 | 2021-06-01 | 成都新洲航空设备有限责任公司 | Novel 28V military solid-state power relay |
-
2010
- 2010-10-27 CN CN2010205792894U patent/CN201956640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826860A (en) * | 2016-05-04 | 2016-08-03 | 国网新疆电力公司哈密供电公司 | Method for melting ice and snow of transmission line |
| CN112886954A (en) * | 2021-04-01 | 2021-06-01 | 成都新洲航空设备有限责任公司 | Novel 28V military solid-state power relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20141027 |
|
| EXPY | Termination of patent right or utility model |