CN2364657Y - Dew controller - Google Patents
Dew controller Download PDFInfo
- Publication number
- CN2364657Y CN2364657Y CN 99234392 CN99234392U CN2364657Y CN 2364657 Y CN2364657 Y CN 2364657Y CN 99234392 CN99234392 CN 99234392 CN 99234392 U CN99234392 U CN 99234392U CN 2364657 Y CN2364657 Y CN 2364657Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- control assembly
- connects
- execution unit
- nand gate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model belongs to a protection device of an electronic switch. A dewing controller is formed by the method that a sensing device is connected with a control part which is connected with an execution part, and the execution part is connected with a displaying part. A power source is respectively connected to each part through a rectifying device and a voltage stabilizing device; the sensing device is formed by the method that a humidity sensor RH% is connected with two resistors with different values; the control part is formed by the method that the input ends of two double-input NAND gates are connected in parallel together; the execution part is formed by the method that a transistor is connected with a relay and a resistor. The controller has the advantages that dewing in an electromechanical cabinet can be automatically prevented from generating, the safe operation can be ensured, the service life can be extended, and human power and material resource can be saved.
Description
The utility model belongs to a kind of electronic switch protective device, refers in particular to the automatic protection electronic switch that is used to control humidity in the dynamo-electric cabinet.
In the prior art in order to prevent that dynamo-electric cabinet is inner condensation to take place, all be used in moving heating and remove moisture, though can avoid the various accidents that cause owing to condensation like this, this manual operations bothers very much, it is also untimely accurately to expend a large amount of manpowers and control.
The purpose of this utility model provide a kind of can robot brain humidity in the electricity cabinet, prevent the device of condensation.
Embodiment of the present utility model is that designing a kind of is the automatic control electronic switch of main control parameters with humidity, it is to connect a control assembly by a sensing device, control assembly connects an execution unit again and constitutes, sensing device is resistance R 7 and the R8 that is connected different resistances by a humidity sensor RH%, the other end of R7 connects input voltage, the other end of R8 is connected to the input of the A NAND gate of control assembly, control assembly is to be made of input A NAND gate and B NAND gate in parallel, connect a resistance R 12 simultaneously and form feedback, be connected to an end of resistance R 9 in the execution unit, the other end of R9 connects the base stage of a transistor Q1, the collector electrode of Q1 is succeeded the pitch of the laps of electrical equipment J1 by resistance R 12, power supply is connected sensing device through rectifying device respectively with stable-pressure device, control assembly and execution unit, rectifying device is by being capacitor C 1, C2 resistance R 1 is formed reducing transformer, and carry out full-wave rectification by 4 rectifier diode D1～D4, and form voltage divider by resistance R 2 and R3, pressurizer is to be connected potentiometer RP1 with R6 and integrated circuit (IC) 1 constitutes by resistance R 5.For the ruuning situation that makes this condensation controller is made demonstration, on execution unit, can connect a display unit, it is to be made of LED 2 and resistance R 10, is connected on the transistor Q collector electrode of execution unit.Rectifying device connects a power supply indication that is made of R4 resistance and LED 1.
The operation principle of this condensation controller is: humidity sensor-RH% is attached on the stabilized voltage power supply by resistance R 7, the humidity sensor internal resistance produces very big variation and produce very big change in voltage between R7 and RH% when humidity changes to 93%, change voltage is added to two parallel connections of NAND gate A by resistance R 8 input, A NAND gate output is connected to the input of two parallel connections of B NAND gate, when the A NAND gate input high level, B NAND gate output also is a high level according to logical relation.High level promotes the base stage of transistor Q1 by resistance R 9, Q1 satisfies and closes conducting, the Q1 collector electrode connects the J1 relay coil by resistance R 12, another termination stabilized voltage power supply of coil, so J1 relay coil energising adhesive, the normally opened contact closure, closed contact one end can connect another termination load one end of power supply, another termination power other end of load.Heater puts into operation, and humidity is descended, and the voltage that is reduced to a certain degree humidity sensor RH% output when humidity reduces, and making B NAND gate output voltage is zero.The Q1 transistor ends, and the J1 relay quits work, and makes that the condensation controller is in the monitoring state.
The great advantage of this condensation controller is the generation that can prevent condensation in the dynamo-electric cabinet automatically, has overcome with artificial manually operated various shortcomings.Make handling safety reliable, very avoid the generation of condensation timely and accurately.Guarantee the safe and reliable operation of dynamo-electric cabinet, prolonged the useful life of dynamo-electric cabinet, and saved manpower and materials.
Fig. 1 is the structural principle block diagram of the utility model embodiment;
Fig. 2 always schemes for the schematic circuit of the utility model embodiment;
Fig. 3 is the sensing device structural circuit figure of the utility model embodiment;
Fig. 4 is the control assembly circuit diagram of the utility model embodiment;
Fig. 5 is the execution unit structural circuit figure of the utility model embodiment;
Fig. 6 is the rectifying device structural circuit figure of the utility model embodiment;
Fig. 7 is the stable-pressure device structural circuit figure of the utility model embodiment;
Fig. 8 is the display unit structural circuit figure of the utility model embodiment;
Embodiment:
Now in conjunction with the accompanying drawings structure of the present utility model is elaborated, this condensation controller is to connect a control assembly by a sensing device, control assembly connects an execution unit again, execution unit connects a display unit, and power supply is connected sensing device, control assembly, execution unit and display unit through rectifying device respectively with stable-pressure device.
The structure of 3 pairs of sensing devices and operation principle are described further in conjunction with the accompanying drawings, direct voltage after the voltage stabilizing is added in R7 one end, the R7 other end is linked to the end of R8 one end and humidity sensor RH%, it is different that the collocation of R7 and the different resistances of R8 can make opening of humidity control point, V3 voltage is the output voltage of sensing device, is passed to the input of the A NAND gate of control assembly.
The structure of 4 pairs of execution units and operation principle in conjunction with the accompanying drawings, two inputs of A NAND gate and B NAND gate are connected in parallel, according to logical relation B NAND gate output high level, this high level can promote execution unit work when the V3 voltage that is come by R8 makes the A upset along with humidity changes.
The structure of 5 pairs of execution units and operation principle are described further in conjunction with the accompanying drawings, and the defeated signal that comes of control assembly promotes transistor Q1 to be made it full and close, relay J 1 adhesive, and normally opened contact is connected, and whether determines the series resistance current limliting according to J1 relay coil working voltage.
The structure of 6 pairs of rectifying devices and operation principle are described further in conjunction with the accompanying drawings, form reducing transformer by capacitor C 1, C2 and resistance R 1,4 rectifier diodes carry out full-wave rectification, resistance R 2 and R3 form voltage divider makes the DC stabilization of output within the scope of needs, if R2 and R3 are removed, it is the same to change the voltage-stabiliser tube effect that needs, and R4 and LED1 form the power supply indication, and capacitor C 1, C2 and resistance R 1 will change along with the size of input voltage and electric voltage frequency.
The structure working principle of 7 pairs of stable-pressure devices further specifies in conjunction with the accompanying drawings, and stable-pressure device is made up of resistance R 5, R6 potentiometer RP1 and an integrated circuit (IC) 1, regulates the size that RP1 can change output voltage.
The structure of 8 pairs of display units and operation principle are described further in conjunction with the accompanying drawings, display unit by a LED 2 and resistance R 10 totally two elements form, when transistor Q1 is full when closing conducting, LED 2 is by resistance R 10 ground connection, light-emitting diode is lighted, and carries out work and shows.
Present embodiment adopts the electric elements parameter as follows:
Electric capacity: C1 0.22～0.9 μ f/630V, C2 0.22～0.47 μ f/630V,
C3?220μf/35V～470μf/35V。
Resistance: R1 0.5W 200K～800K, R2 0.5W 10 Ω～200 Ω,
R3?0.5W?1.5K～5K，R4?0.25W?2K～5K，
R5?0.5W?320Ω～620Ω，R6?0.5W?1K～2K，
R7?0.5W?100K～200K，R8?0.5W?20K～100K，
R9?0.5W?47K～62K，R10?0.5W?1K～5.1K，
R11?0.5W?10Ω～300Ω，R12?680K～1M。
Diode: D1～D4 IN4007, D5 IN4007.
The red 3 of light-emitting diode: LED1, the red 3 of LED2.
Relay: J1 DC24V.
Integrated circuit: 1C1 TL431.
Transistor: Q1 9014.
Humidity sensor: RH%HDP-07 or other model.
Two NAND gate (integrated package): MC14011.
Potentiometer: RP1 3296 10K.
Claims (3)
1, a kind of condensation controller is characterized in that it is to connect a control assembly by a sensing device, control assembly connects an execution unit again and constitutes, sensing device is resistance R 7 and the R8 that is connected different resistances by humidity sensor RH%, the other end of R7 connects input voltage, the other end of R8 is connected to the input of the A NAND gate of control assembly, control assembly is to be made of input A NAND gate and B NAND gate in parallel, connect a resistance R 12 simultaneously and form feedback, be connected to an end of resistance R 9 in the execution unit, the other end of R9 connects the base stage of a transistor Q1, the collector electrode of Q1 is succeeded the pitch of the laps of electrical equipment J1 by resistance R 12, power supply is connected sensing device through rectifying device respectively with stable-pressure device, control assembly and execution unit, rectifying device is formed reducing transformer by capacitor C 1C2 resistance R 1, and carry out full-wave rectification by 4 rectifier diode D1～D4, and and form voltage divider by resistance R 2 and R3, pressurizer is to be connected potentiometer RP1 with R6 and integrated circuit (IC) 1 constitutes by resistance R 5.
2, condensation controller as claimed in claim 1, its feature connects a display unit in described execution unit, and it is to be made of LED 2 and resistance R 10, is connected on the transistor Q1 collector electrode of execution.
3, condensation controller as claimed in claim 1 is characterized in that described rectifying device connects a power supply indication that is made of R4 resistance and LED 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234392 CN2364657Y (en) | 1999-02-09 | 1999-02-09 | Dew controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234392 CN2364657Y (en) | 1999-02-09 | 1999-02-09 | Dew controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2364657Y true CN2364657Y (en) | 2000-02-16 |
Family
ID=34022569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234392 Expired - Fee Related CN2364657Y (en) | 1999-02-09 | 1999-02-09 | Dew controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2364657Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291220A (en) * | 2014-09-28 | 2015-01-21 | 河南重工起重机集团有限公司 | Special dew detection and dew removal system for crane |
-
1999
- 1999-02-09 CN CN 99234392 patent/CN2364657Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291220A (en) * | 2014-09-28 | 2015-01-21 | 河南重工起重机集团有限公司 | Special dew detection and dew removal system for crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104360697A (en) | Power-temperature control and detection device for IGBT (insulated gate bipolar transistor) modules of three-phase inverter system | |
| CN2864700Y (en) | Zero-cross detecting circuit and refrigerator employing same | |
| CN2777776Y (en) | Cable power indicator | |
| CN110233369A (en) | The electronic grounding rod of overhead high voltage line | |
| CN2364657Y (en) | Dew controller | |
| CN101980405B (en) | Multi-purpose time delay power supply socket manufactured by using time base circuit | |
| CN101388550B (en) | Intelligent building electricity saving and distributing apparatus | |
| CN207586395U (en) | A kind of battery short-circuit test device | |
| CN2821454Y (en) | Power line connection detection circuit of air conditioner | |
| CN1140302C (en) | Conductor cord disconnection checker for low-voltage output low-frequency cosmetic device | |
| CN2793741Y (en) | Electric leakagte testing circuit | |
| CN205883616U (en) | A surge detection circuitry and electromagnetic heating device for electromagnetic heating device | |
| CN208223540U (en) | Environmental parameter collector for wireless networking environmental control system | |
| CN202364420U (en) | Over-voltage and under-voltage protection circuit for AC electrical network for intelligent LED street lamp driver | |
| CN2178014Y (en) | Integral monitor for AC motor | |
| CN206960544U (en) | A kind of electrification display with chain function | |
| CN206894504U (en) | A kind of double insulation module DC DC | |
| CN210069233U (en) | Electric power oil injection and discharge pipeline anti-freezing device | |
| CN202095131U (en) | Memory section switch | |
| CN2724010Y (en) | Single phase load identification electric energy meter | |
| CN200953044Y (en) | Digital control system electric source anti-interference state on-line detector | |
| CN2747588Y (en) | Single phase electronic type electricity leakage detection intelligent electric power meter | |
| CN104142681B (en) | FCT device control method and system and processor | |
| CN204681080U (en) | Frequency converter three-phase input open-phase protection circuit | |
| CN2679573Y (en) | Control system of indoor machine of air conditioner having one-for-multiple air cooling ducts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |