CN2384246Y - Controller for temp and wetness - Google Patents
Controller for temp and wetness Download PDFInfo
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- CN2384246Y CN2384246Y CN 99234457 CN99234457U CN2384246Y CN 2384246 Y CN2384246 Y CN 2384246Y CN 99234457 CN99234457 CN 99234457 CN 99234457 U CN99234457 U CN 99234457U CN 2384246 Y CN2384246 Y CN 2384246Y
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Abstract
The utility model relates to a temperature controller, belonging to an electronic switch, particularly an electronic switch of automatic protection used for controlling temperature and dewing in an electromechanical cabinet. The utility model is formed by the method that a sensing device is connected with a control part and then is connected with an execution part. Power supply is respectively connected to each part through rectification and voltage stabilization, the sensing device is formed by the method that a dewing sensing device or a temperature-sensing element is connected with a resistance and a capacitor, the control part is composed of two operational amplifying circuits and an NAND gate, and the execution part is formed by the method that a transistor is connected with a relay and a resistance. The controller has the advantages that dewing in the electromechanical cabinet can be automatically prevented from generating or the high rise of temperature can be prevented, the safe operation can be ensured, service life can be extended, and human power and material power 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 interior humidity of dynamo-electric cabinet and temperature.
In order to prevent the inner condensation or warm different too high that takes place of dynamo-electric cabinet, all adopt manual heating to remove moisture in the prior art.Though can avoid like this owing to condensation or the different too high various accidents that cause of temperature, this manual operations bothers very much, expend a large amount of manpowers and control is also not prompt enough accurately.
The purpose of this utility model provide a kind of can robot brain humidity and temperature in the electricity cabinet, prevent condensation or the different too high device of temperature.
Embodiment of the present utility model is that designing a kind of is the automatic control electronic switch of main control parameters with humidity or temperature, it is to connect a control assembly by a sensing device, control assembly connects an execution unit again and constitutes, sensing device is to connect resistance R 7 and capacitor C 4 by a condensation sensor RH% or temperature-sensing element (device) RA, the other end of R7 connects input voltage, control assembly is to constitute by importing A Sheffer stroke gate in parallel and B Sheffer stroke gate and resistance R 8, connect a resistance R 12 simultaneously and form feedback, the B Sheffer stroke gate output high level of control assembly is 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 of Q1 is succeeded the coil of electrical equipment J1 by resistance R 11, power supply is connected sensing device through fairing respectively with stable-pressure device, control assembly and execution unit, fairing is by being capacitor C 1, C2 resistance R 1 is formed reducing transformer, and carry out full-wave rectification by 4 commutation diode D1-D4, direct current after the rectification is through resistance R 2 outputs, output one termination of R2 has resistance R 3 to ground, be connected to resistance R 4 and be concatenated into ground with diode (LED) 1, be connected to capacitor C 3 to ground, these four elements have been formed shunting, power supply indication and power supply DC filtering, the output terminal of R2 is connected to an end of resistance R 5 in the stable-pressure device, potentiometer RP1 one end in another termination stable-pressure device of R5, RP1 other end connecting resistance R6 and mu balanced circuit IC1, the output terminal of IC1 is connected to sensing device, control assembly and execution unit.
For the ruuning situation that makes this temperature and humidity controller is made demonstration, on execution unit, connect a display unit, it is to be made of LED 2 and resistance R 10, is connected on the collector of transistor Q1 in the execution unit.
The principle of work of this temperature and humidity controller is: when install in the sensing device for humidity sensor-RH% the time, condensation sensor-RH% is attached on the stabilized voltage supply by resistance R 7, when humidity changes to 88%, the internal resistance of humidity sensor produces very big variation, between R7 and RH%, produce very big change in voltage, this changes voltage is added to two parallel connections of Sheffer stroke gate A by resistance R 8 input end, A Sheffer stroke gate output terminal duplex is received the input end of two parallel connections of B Sheffer stroke gate, according to logical relation, when A Sheffer stroke gate input high level, B Sheffer stroke gate output terminal also is a high level.High level promotes the base stage of transistor Q1 by resistance R 9, Q1 satisfies and closes conducting, the collector of Q1 connects the J1 relay coil by resistance R 12, another termination stabilized voltage supply of coil, so J1 relay coil energising adhesive, the normally opened contact closure, closed contact one end can connect power supply, another termination load one end, another termination power other end of load.Heating arrangement puts into operation, and humidity is descended, and when humidity is reduced to a certain degree, humidity sensor RH% output voltage reduces, and making B Sheffer stroke gate output voltage is zero.The Q transistor ends, and the J1 relay quits work, and temperature and humidity controller is in the monitoring state.
In the power rectifying equipment that this temperature and humidity controller adopts, capacitor C 1, C2 and resistance R 1 parallel connection, play the reducing transformer effect, be serially connected in the alternating circuit, being connected on 4 commutation diodes on the reducing transformer is connected into full-bridge and carries out rectification, the end of direct current output connecting resistance R2 after the rectification, 6 elements of another termination of resistance R 2 promptly divide 6 the tunnel.1 road connecting resistance R3, one end, R3 other end ground connection, preliminary voltage stabilizing shunting action is played on this road, and the also available stabilivolt of resistance R 3 replaces, and effect is the same.2 road connecting resistance R4, one end, resistance R 4 other ends connect the positive pole of light-emitting diodes LED1, the LED1 minus earth, the effect of indication power supply is played on this road.3 the tunnel connect "+" utmost point of capacitor C 3, "-" utmost point ground connection of C3, direct supply filtering.4 road connecting resistance R5, one end.5 the road succeed electrical equipment J1 coil one end.6 the tunnel connect the negative pole of transistor D5.
In the stable-pressure device, resistance R 2 another termination potentiometer RP1, the power supply of integrated circuit (IC) 1, potentiometer RP1 is sliding with the contact, with connecting resistance R6 one end after another stiff end short circuit own, other end ground connection, formed mu balanced circuit, regulator potentiometer RP1 can make the R2 output voltage change.
That install in sensing device is temperature-sensing element (device) RA, and on control assembly, connect a presetting circuit, in control assembly, increase and meet two amplifier integrated circuit A and B, temperature-sensing element (device) RA positive pole connects power supply, negative pole connecting resistance R7 and capacitor C4 connect "-" input end of amplifier A and "+" input end of amplifier B simultaneously again.Formed temperature sensor circuit, presetting circuit regulator potentiometer RPH determines the range upper voltage limit, and regulator potentiometer RPL determines lower voltage limit, regulator potentiometer RPH repeatedly, and RPM and RPL make the voltage on the potentiometer RPM sliding contact corresponding with the voltage on the R7.Be divided into three tunnel, one tunnel positive input terminal that meets amplifier A on the potentiometer RPM sliding contact.The second the tunnel connects the negative input end of amplifier B by resistance R 8.Third Road connects feedback resistance RF one end, and the resistance R F other end is connected on the output terminal of Sheffer stroke gate B, forms feedback circuit, plays time-delay (temperature return difference) effect.Relay can not be started on a flat permanent point repeatedly, close.When the voltage on the resistance R 7 (temperature) during less than presetting circuit (potentiometer RPM sliding contact) output voltage, amplifier A exports high level; Amplifier B output low level.Amplifier A output connects the input end of Sheffer stroke gate A, and amplifier B output connects the input end of Sheffer stroke gate B; Another input end of the output terminal Sheffer stroke gate B of Sheffer stroke gate A.The output of Sheffer stroke gate B divides three tunnel, one road connecting resistance R9 to promote transistor Q1, makes it full close conducting, relay J 1 adhesive.The closed work of normally opened contact.The second tunnel output inserts another input end of Sheffer stroke gate A, and Third Road feedback resistance R12 and presetting circuit connect.The diode D5 that is connected in parallel with the J1 relay plays the reduction reverse voltage; the effect of protection transistor Q1, circuit LED2 and resistance R 10 series connection, one terminates on the stabilized voltage supply; one terminates at the collector of transistor Q1, the bright indication work of light emitting diode during work.
The great advantage of this temperature and humidity controller is can prevent the generation of condensation in the dynamo-electric cabinet automatically and heat up too highly, has overcome in original technology the various shortcomings of operation manually.Handling safety is reliable, has very both avoided the generation of condensation in the dynamo-electric cabinet timely and accurately, has avoided liter too high again, has guaranteed the safe and reliable operation of dynamo-electric cabinet, has prolonged the serviceable life of dynamo-electric cabinet, has saved human and material resources.
Accompanying drawing and explanation:
The structural principle block diagram of Fig. 1 the utility model embodiment;
The schematic circuit of Fig. 2 embodiment 1 is always schemed;
The sensing device circuit structure diagram of Fig. 3 embodiment 1;
The control assembly circuit structure diagram of Fig. 4 embodiment 1;
The execution unit circuit structure diagram that Fig. 5 the utility model embodiment is shared;
The fairing circuit structure diagram that Fig. 6 the utility model embodiment is shared;
The stable-pressure device circuit structure diagram that Fig. 7 the utility model embodiment is shared;
The schematic circuit of Fig. 8 embodiment 2 is always schemed;
The sensing device circuit structure diagram of Fig. 9 embodiment 2;
The circuit structure diagram of the control assembly of Figure 10 embodiment 2;
Figure 11 type is implemented 2 presetting circuit structural drawing;
The display unit circuit structure diagram that Figure 12 the utility model embodiment is shared;
Embodiment 1:
Now 2 pairs of structures of the present utility model elaborate in conjunction with the accompanying drawings, this temperature and humidity 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 fairing respectively with stable-pressure device.
The structure of 3 pairs of sensing devices and principle of work are described further in conjunction with the accompanying drawings, DC voltage after the voltage stabilizing is added in R7 one end, the R7 other end is linked to the end of condensation sensor RH%, and V3 voltage is the output voltage of sensing device, is passed to the input end of the A Sheffer stroke gate of control assembly by resistance R 8.
The structure of 4 pairs of control assemblies and principle of work explanation in conjunction with the accompanying drawings, two input ends of A Sheffer stroke gate and B Sheffer stroke gate are connected in parallel, according to logical relation B Sheffer stroke 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 principle of work 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 resistance in series current limliting according to J1 relay coil working voltage.
The structure of 6 pairs of fairings and principle of work are described further in conjunction with the accompanying drawings, form reducing transformer by capacitor C 1, C2 and resistance R 1,4 commutation diode D1～D4 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 stabilivolt 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 of 7 pairs of stable-pressure devices and principle are described further 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, regulate the size that RP1 can change output voltage.
The structure of 12 pairs of display units and principle of work 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 Q is full when closing conducting, LED 2 is by resistance R 10 ground connection and light, and carries out work and shows.
Embodiment 2:
Embodiment 3:
The utility model embodiment adopts the electrical equipment detail list:
Electric capacity: C1 0.22～0.7 μ f/630V, C2 0.22～0.7 μ f/630V,
C3?220μf/35V，C4?33μf/16V。
Resistance: R1 220K～800K/0.5W, R2 10～100 Ω/0.5W,
R3?1K～3K/0.25W，R4?1K～3K/0.25W，
R5?100Ω～560Ω/0.5W，R6?2K～1K/0.25W，
R7?1K～10K/0.25W，R8?180K～330K/0.25W，
R9?30K～50K/0.25W，R10?1K～5.1K/0.25W，
R11?200Ω～270Ω/0.5W，R12?10K～200K～1M/0.25W。
The red 3 of light emitting diode: LED1, the red 3 of LED2.
Diode: D1～D4 IN4007, D5 IN4007.
Transistor: Q1 9014.
Mu balanced circuit: IC1 TL431.
Amplifier integrated circuit: A 4558, B 4558.
Sheffer stroke gate integrated package: A 14011, B 14011.
Relay: J1 24V.
Potentiometer: RP1, RPH, RPM, RPL.
Condensation sensor: RH% HDP-07 or other model.
Temperature-sensing element (device): RA AD590.
Claims (3)
1, a kind of temperature and humidity controller, it 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 to connect resistance R 7 by condensation sensor RH% to constitute, the other end of R7 connects input voltage, control assembly is to constitute by importing A Sheffer stroke gate in parallel and B Sheffer stroke gate and resistance R 8, the end of R8 connects the sensing device output terminal, its other end connects the input end of A Sheffer stroke gate, control assembly connects a resistance R 12 and forms feedback, the B Sheffer stroke gate output high level of control assembly is connected to the end of execution unit current-limiting resistance R9, the other end of R9 connects the base stage of transistor Q1, the collector of Q1 is succeeded the coil of electrical equipment J1 by resistance R 11, power supply is connected sensing device through fairing respectively with stable-pressure device, control assembly and execution unit, fairing is by capacitor C 1, C2 and resistance R 1 compose in parallel reducing transformer, and carry out full-wave rectification by four diode D1-D4, direct current after the rectification is through resistance R 2 outputs, output one termination of R2 has resistance R 3 to ground, be connected to resistance R 4 and be concatenated into ground with diode (LED) 1, be connected to capacitor C 3 to ground, these four elements have been formed shunting, electric current indication and power supply DC filtering, the R2 output terminal is connected to an end of resistance R 5 in the stable-pressure device, potentiometer RP1 one end in another termination stable-pressure device of R5, RP1 other end connecting resistance R6 and mu balanced circuit IC1, the output terminal of IC1 is connected to sensing device, control assembly and execution unit.
2, a kind of temperature and humidity controller, it is characterized in that it is to connect a control assembly by a sensing device, and on control assembly, connect a presetting circuit, control assembly connects an execution unit again and constitutes, the positive pole of the temperature-sensing element (device) RA of sensing device connects power supply, the positive pole of negative pole connecting resistance R7 and capacitor C 4, the other end of R7 and C4 minus earth, control assembly is to be connected the A Sheffer stroke gate and the B Sheffer stroke gate constitutes by the amplifier integrated circuit A of two parallel connections and B are corresponding, the negative pole of temperature-sensing element (device) RA connects the negative pole of amplifier integrated circuit A and the positive pole of amplifier integrated circuit B, presetting circuit is by three potentiometer RPH, RPM and RPL are in series, the fixing termination stabilized voltage supply of RPH, another stiff end and armature contact short circuit, ground connection after the armature contact of RPL and the stiff end short circuit, the sliding contact of RPM connects the anodal of amplifier integrated circuit A and connects the negative pole of amplifier integrated circuit by resistance R 8, be connected on the output terminal formation feedback circuit of B Sheffer stroke gate in addition by resistance R 12, the B Sheffer stroke gate output high level of control assembly is connected to the end of execution unit current-limiting resistance R9, the other end of R9 connects the base stage of transistor Q1, the collector of Q1 is succeeded the coil of electrical equipment J1 by resistance R 11, power supply is connected sensing device through fairing respectively with stable-pressure device, control assembly and execution unit, fairing is by capacitor C 1, C2 and resistance R 1 compose in parallel reducing transformer, and carry out full-wave rectification by four diode D1-D4, direct current after the rectification is through resistance R 2 outputs, output one termination of R2 has resistance R 3 to ground, be connected to resistance R 4 and be concatenated into ground with diode (LED) 1, be connected to capacitor C 3 to ground, these four elements have been formed shunting, electric current indication and power supply DC filtering, the R2 output terminal is connected to an end of resistance R 5 in the stable-pressure device, potentiometer RP1 one end in another termination stable-pressure device of R5, RP1 other end connecting resistance R6 and mu balanced circuit IC1, the output terminal of IC1 is connected to sensing device, control assembly and execution unit.
3, temperature and humidity controller as claimed in claim 1 or 2 is characterized in that: connect a display unit on the described execution unit, it is to be made of LED 2 and resistance R 10, is connected on the collector of transistor Q1 in the execution unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234457 CN2384246Y (en) | 1999-03-19 | 1999-03-19 | Controller for temp and wetness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234457 CN2384246Y (en) | 1999-03-19 | 1999-03-19 | Controller for temp and wetness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384246Y true CN2384246Y (en) | 2000-06-21 |
Family
ID=34022617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234457 Expired - Fee Related CN2384246Y (en) | 1999-03-19 | 1999-03-19 | Controller for temp and wetness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384246Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053632A (en) * | 2009-10-28 | 2011-05-11 | 江苏省电力公司溧阳市供电公司 | Humidity control and display device in terminal box of substation |
| CN102636114A (en) * | 2012-04-05 | 2012-08-15 | 苏州怡信光电科技有限公司 | Stable image measuring instrument |
| CN104391526A (en) * | 2014-12-09 | 2015-03-04 | 国家电网公司 | Remote temperature control circuit for electric cabinet |
| CN104375530B (en) * | 2009-10-28 | 2016-09-14 | 江苏省电力公司溧阳市供电公司 | A kind of humidity in transformer substation terminal box controls and display device |
-
1999
- 1999-03-19 CN CN 99234457 patent/CN2384246Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053632A (en) * | 2009-10-28 | 2011-05-11 | 江苏省电力公司溧阳市供电公司 | Humidity control and display device in terminal box of substation |
| CN102053632B (en) * | 2009-10-28 | 2014-11-26 | 江苏省电力公司溧阳市供电公司 | Humidity control and display device in terminal box of substation |
| CN104375530B (en) * | 2009-10-28 | 2016-09-14 | 江苏省电力公司溧阳市供电公司 | A kind of humidity in transformer substation terminal box controls and display device |
| CN102636114A (en) * | 2012-04-05 | 2012-08-15 | 苏州怡信光电科技有限公司 | Stable image measuring instrument |
| CN104391526A (en) * | 2014-12-09 | 2015-03-04 | 国家电网公司 | Remote temperature control circuit for electric cabinet |
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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 |