CN113296562A - Inside atmospheric control circuit of medical equipment - Google Patents
Inside atmospheric control circuit of medical equipment Download PDFInfo
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Abstract
The invention relates to the field of medical instruments, in particular to an internal temperature and humidity control circuit of medical equipment. The technical problem to be solved is as follows: the temperature and humidity control circuit in the medical equipment is convenient to use and high in safety. The technical scheme is as follows: the utility model provides an inside atmospheric control circuit of medical equipment, is including power supply unit, second comparator circuit, heating circuit, temperature-detecting circuit, reverse proportion operation amplifier circuit, first potentiometre, temperature sensor and temperature regulation potentiometre, first potentiometre is connected with temperature-detecting circuit's input, temperature sensor's output and temperature-detecting circuit's input are connected. According to the invention, through the matching of the temperature sensor and the heating circuit, the internal temperature of the medical equipment can be detected, and when the internal temperature of the medical equipment is lower, the internal temperature of the medical equipment can be automatically heated, so that the internal temperature of the medical equipment is always kept in a certain range.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an internal temperature and humidity control circuit of medical equipment.
Background
The normal operation of medical equipment is based on certain humiture condition, if the stability of medical equipment can not be satisfied to the environment humiture condition, the security will receive the influence, causes the trouble to endanger medical equipment's safe operation even, and different equipment need be in different humiture conditions moreover.
With present technique, all need medical personnel manual control heater, the start-up and the closing of fan usually to make the inside humiture of medical equipment keep in certain scope, relatively troublesome, make mistakes easily moreover, the security is not high, consequently, has designed a convenient to use and the higher inside humiture control circuit of medical equipment of security.
Disclosure of Invention
In order to overcome the defects that the manual control of the starting and the closing of a heater and a fan is troublesome and the safety is not high, the technical problem to be solved is as follows: the temperature and humidity control circuit in the medical equipment is convenient to use and high in safety.
The technical scheme is as follows: the utility model provides an inside atmospheric control circuit of medical equipment, is including power supply unit, second comparator circuit, heating circuit, temperature-detecting circuit, reverse proportion operation amplifier circuit, first potentiometre, temperature sensor and temperature regulation potentiometre, first potentiometre is connected with temperature-detecting circuit's input, temperature sensor's output and temperature-detecting circuit's input are connected, temperature-detecting circuit's output and reverse proportion operation amplifier circuit's input are connected, the temperature regulation potentiometre is connected with reverse proportion operation amplifier circuit's input, reverse proportion operation amplifier circuit's output and second comparator circuit's input are connected, second comparator circuit's output and heating circuit's input are connected, power supply unit is second comparator circuit, heating circuit, The temperature detection circuit, the inverse proportion operation amplification circuit, the first potentiometer, the temperature sensor and the temperature regulation potentiometer supply power.
Preferably, the humidity control device further comprises a multivibrator, a humidity sensor, a first amplifier circuit, a first comparator circuit, a humidity control potentiometer, a zero-setting potentiometer, a monostable trigger and an exhaust fan control circuit, wherein the output end of the humidity sensor is connected with the input end of the multivibrator, the output end of the multivibrator is connected with the input end of the monostable trigger, the output end of the monostable trigger is connected with the input end of the first amplifier circuit, the zero-setting potentiometer is connected with the input end of the first amplifier circuit, the humidity control potentiometer is connected with the input end of the first amplifier circuit, the output end of the first amplifier circuit is connected with the input end of the first comparator circuit, the output end of the first comparator circuit is connected with the input end of the exhaust fan control circuit, and the power supply unit is the multivibrator, the humidity sensor, the humidity control potentiometer, the humidity control circuit and the exhaust fan control circuit are connected with the output end of the first amplifier circuit, and the power supply unit is connected with the output end of the humidity control circuit, The humidity-sensitive sensor, the first amplifier circuit, the first comparator circuit, the humidity adjusting potentiometer, the zero setting potentiometer, the monostable trigger and the exhaust fan control circuit are powered.
Preferably, the temperature detection circuit comprises a resistor R2, a potentiometer VR3 and a temperature sensor AD590-U3, wherein a pin 1 of the temperature sensor AD590-U3 is grounded, a pin 2 of the temperature sensor AD590-U3 is connected with the potentiometer VR3 and the resistor R2 in series, the other end of the resistor R2 is connected with +12V, and the adjustable end of the potentiometer VR3 is connected with a resistor R2.
Preferably, the inverse proportion operational amplifier circuit comprises a dual operational amplifier LM358-U2, a resistor R3, a resistor R5, a resistor R9 and potentiometers VR 4-VR 5, a potentiometer VR4 and a resistor R5 are connected in series with a pin 1 of the dual operational amplifier LM358-U2, the other end of the resistor R5 is connected with a pin 2 of a temperature sensor AD590-U3, an adjustable end of the potentiometer VR4 is connected with a pin 1 of the dual operational amplifier LM358-U2, a potentiometer VR5 and a resistor R3 are connected in series with a pin 1 of the dual operational amplifier LM358-U2, the other end of the resistor R3 is grounded, a pin 2 of the dual operational amplifier LM358-U2 is connected with a pin 2 of the temperature sensor AD590-U3, a pin R9 is connected in series with a pin 3 of the dual operational amplifier LM-U2, the other end of the resistor R9 is grounded, and a pin 4 of the dual operational amplifier LM358-U2 is grounded, the 8 pins of the dual operational amplifiers LM358-U2 are connected to + 12V.
Preferably, the second comparator circuit comprises four operational amplifier integrated circuits LM324-U7, potentiometers VR 1-VR 2 and resistors R6 and R7, a 2-pin series resistor R6 of the four operational amplifier integrated circuits LM324-U7, the other end of the resistor R6 is grounded, a 2-pin series potentiometer VR1 of the four operational amplifier integrated circuits LM324-U7, the other end of the potentiometer VR1 is connected with +12V, an adjustable end of the potentiometer VR1 is connected with +12V, an adjustable end of the potentiometer VR5 is connected with a 3-pin of the four operational amplifier integrated circuits LM324-U7, a 4-pin of the four operational amplifier integrated circuits LM-U7 is connected with +12V, a 6-pin series resistor R7 of the four operational amplifier integrated circuits LM324-U7, the other end of the resistor R7 is grounded, a 6-pin of the four operational amplifier integrated circuits LM324-U7 is connected with a 2, and another end of the potentiometer VR 4612V is connected with a VR2, the adjustable end of the potentiometer VR2 is connected with +12V, and the 11 pins of the four-operational amplifier integrated circuit LM324-U7 are grounded.
Preferably, the heating circuit comprises a heater PTC1, a photo coupler OPTOISO1-U1, a resistor R4, a resistor R1, a light emitting diode VD1, a diode D1 and a relay RL1, wherein the anode of the photo coupler OPTOISO1-U1 is connected with the 1 pin of the four operational amplifier integrated circuit LM 324-U1, the cathode of the photo coupler OPTOISO1-U1 is connected in series with the resistor R1, the other end of the resistor R1 is connected with the ground, the emitter of the photo coupler OPTOISO1-U1 is connected with the ground, the collector of the photo coupler OPTOISO1-U1 is connected in series with the resistor R1 and the light emitting diode VD1, the anode of the light emitting diode VD1 is connected with +15V, the two ends of the diode D1 and the relay RL1 are connected in parallel, the anode of the diode D1 is connected with the collector of the photo coupler OPTOISO1-U1, the cathode of the diode VD1 is connected with the cathode of the PTC1 and the relay RL1, the other end of the heater PTC1 is connected with the N end of the alternating current, and the COM end of the relay RL1 is connected with the L end of the alternating current.
Preferably, the multivibrator comprises a time base integrated circuit NE555-U5, resistors R15-R17, capacitors C1-C2, a capacitor C5, resistors R11-R12, a potentiometer VR6 and a humidity sensor RH1, wherein a pin 1 of the time base integrated circuit NE555-U5 is grounded, a pin 3 of the time base integrated circuit NE555-U5 is connected in series with the resistor R16 and the capacitor C5, the other end of the capacitor C5 is grounded, one end of the resistor R17 is connected with a node between the resistor R16 and the capacitor C5, a pin 4 of the time base integrated circuit 555 NE-U5 is connected with +5V, a pin 5 of the time base integrated circuit NE555-U5 is connected in series with the capacitor C2, the other end of the capacitor C2 is grounded, a pin 6 of the time base integrated circuit NE555-U5 is connected with a pin 7 thereof, the capacitor C1 is connected with the humidity sensor RH1 in parallel, and the other end of the time base integrated circuit NE-U5 is connected with the ground after being connected in parallel, the time base integrated circuit NE555-U5 is characterized in that a resistor R11, a resistor R12 and a potentiometer VR6 are connected in series through a pin 6, the other end of the potentiometer VR6 is grounded, an adjustable end of the potentiometer VR6 is connected in series through a resistor R15, and a pin 8 of the time base integrated circuit NE555-U5 is connected with + 5V.
Preferably, the monostable flip-flop comprises a time base integrated circuit NE555-U6, resistors R13-R14 and capacitors C3-C4, wherein a pin 1 of the time base integrated circuit NE555-U6 is grounded, a pin 2 of the time base integrated circuit NE555-U6 is connected with a pin 6 thereof, a pin 2 of the time base integrated circuit NE555-U6 is connected with a capacitor C4 in series, the other end of the capacitor C4 is grounded, a pin 2 of the time base integrated circuit NE555-U6 is connected with a resistor R14 and a resistor R13 in series, the other end of the resistor R13 is connected with +5V, a pin 3 of the time base integrated circuit NE555-U6 is connected with a pin 2 of the time base integrated circuit NE555-U5, a pin 4 of the time base integrated circuit NE555-U6 is connected with a pin +5V, a pin 5 of the time base integrated circuit NE555-U6 is connected with a capacitor C3 in series, the other end of the capacitor C3 is grounded, a pin 555 of the time base integrated circuit NE 555-U6867 is connected with a resistor R599, the 8 pins of the time base integrated circuit NE555-U6 are connected with + 5V.
Preferably, the first amplifier circuit includes an operational amplifier integrated circuit OP07-U8, a resistor R18 and a potentiometer VR7, the other end of the resistor R15 is connected with the 2-pin of the operational amplifier integrated circuit OP07-U8, the 2-pin series resistor R18 and the potentiometer VR7 of the operational amplifier integrated circuit OP07-U8, the other end of the potentiometer VR7 is connected to pin 6 of the OP07-U8, the adjustable terminal of the potentiometer VR7 is connected to pin 6 of the OP07-U8, the other end of the resistor R17 is connected with the 3-pin of the operational amplifier integrated circuit OP07-U8, the pins 4 of the operational amplifier integrated circuits OP07-U8 are connected with the voltage of 5V, the pins 6 of the operational amplifier integrated circuits OP07-U8 are connected with the pins 5 of the four operational amplifier integrated circuits LM324-U7, and the pins 7 of the operational amplifier integrated circuits OP07-U8 are connected with the voltage of + 5V.
Preferably, the exhaust FAN control circuit comprises a FAN1, a photocoupler OPTOISO2-U4, a resistor R10, a resistor R8, a light emitting diode VD2, a diode D2 and a relay RL2, wherein the anode of the photocoupler OPTOISO2-U4 is connected with the 7 pin of the four operational amplifier integrated circuit LM 324-U4, the cathode of the photocoupler OPTOISO 4-U4 is connected with a resistor R4 in series, the other end of the resistor R4 is grounded, the emitter of the photocoupler OPTOISO 4-U4 is grounded, the collector of the photocoupler OPTOISO 4-U4 is connected with the resistor R4 and the light emitting diode 4 in series, the anode of the light emitting diode VD 4 is connected with +15V, the two ends of the diode D4 and the relay RL 4 are connected in parallel, the anode of the diode D4 is connected with the collector of the photocoupler OPTOISO 4-U4, the cathode of the diode VD 4 is connected with the FAN 4, the cathode of the relay RL 4 and the FANO 4, the other end of the FAN FAN1 is connected with the N end of the alternating current, and the COM end of the relay RL2 is connected with the L end of the alternating current.
The invention has the beneficial effects that: 1. according to the invention, through the matching of the temperature sensor and the heating circuit, the internal temperature of the medical equipment can be detected, and when the internal temperature of the medical equipment is lower, the internal temperature of the medical equipment can be automatically heated, so that the internal temperature of the medical equipment is always kept in a certain range.
2. The humidity sensor is matched with the exhaust fan control circuit, so that the humidity in the medical equipment can be detected, and when the humidity in the medical equipment is higher, the humidity in the medical equipment can be automatically exhausted, so that the humidity in the medical equipment is always kept in a certain range.
3. The invention can adjust the reference values of the second comparator circuit and the first comparator circuit through the temperature adjustment potentiometer and the humidity adjustment potentiometer, thereby being suitable for different medical equipment.
Drawings
FIG. 1 is a block diagram of the circuit of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Reference numerals: 1_ power supply unit, 2_ multivibrator, 3_ humidity sensor, 4_ first amplifier circuit, 5_ first comparator circuit, 6_ second comparator circuit, 7_ heating circuit, 8_ humidity adjusting potentiometer, 9_ temperature detection circuit, 10_ inverse proportion operation amplification circuit, 11_ first potentiometer, 12_ zero potentiometer, 13_ monostable trigger, 14_ temperature sensor, 15_ temperature adjusting potentiometer, 16_ exhaust fan control circuit.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1
A temperature and humidity control circuit in medical equipment comprises a power supply unit 1, a second comparator circuit 6, a heating circuit 7, a temperature detection circuit 9, a reverse proportion operation amplification circuit 10, a first potentiometer 11, a temperature sensor 14 and a temperature regulation potentiometer 15, wherein the first potentiometer 11 is connected with the input end of the temperature detection circuit 9, the output end of the temperature sensor 14 is connected with the input end of the temperature detection circuit 9, the output end of the temperature detection circuit 9 is connected with the input end of the reverse proportion operation amplification circuit 10, the temperature regulation potentiometer 15 is connected with the input end of the reverse proportion operation amplification circuit 10, the output end of the reverse proportion operation amplification circuit 10 is connected with the input end of the second comparator circuit 6, the output end of the second comparator circuit 6 is connected with the input end of the heating circuit 7, the power supply unit 1 supplies power to the second comparator circuit 6, the heating circuit 7, the temperature detection circuit 9, the inverse proportion operation amplification circuit 10, the first potentiometer 11, the temperature sensor 14 and the temperature regulation potentiometer 15.
When the temperature and humidity control circuit in the medical equipment is powered on, the temperature sensor 14 starts to work, the temperature sensor 14 detects the temperature in the medical equipment, the detected temperature is transmitted to the temperature detection circuit 9 through a voltage signal, the voltage signal is transmitted to the inverse proportion operation amplification circuit 10 by the temperature detection circuit 9, the inverse proportion operation amplification circuit 10 amplifies the voltage signal through the proportion of a resistor, the amplified voltage signal is transmitted to the second comparator circuit 6, the second comparator circuit 6 compares the received voltage signal with the reference value of the voltage signal, if the detected temperature is lower than the reference value, the second comparator circuit 6 controls the heating circuit 7 to work, the heating circuit 7 heats the interior of the medical equipment, and when the temperature in the medical equipment is higher than the reference value, second comparator circuit 6 control heating circuit 7 stop work, and heating circuit 7 stops to heat for medical equipment is inside to make the inside temperature of medical equipment remain throughout at certain scope, medical personnel can adjust the benchmark value of second comparator circuit 6 through temperature regulation potentiometre 15, and after the inside atmospheric control circuit of medical equipment outage, temperature sensor 14 stops work.
Example 2
On the basis of embodiment 1, as shown in fig. 1, the humidity sensor device further includes a multivibrator 2, a humidity sensor 3, a first amplifier circuit 4, a first comparator circuit 5, a humidity adjusting potentiometer 8, a zero-setting potentiometer 12, a monostable flip-flop 13 and a fan control circuit 16, wherein an output end of the humidity sensor 3 is connected to an input end of the multivibrator 2, an output end of the multivibrator 2 is connected to an input end of the monostable flip-flop 13, an output end of the monostable flip-flop 13 is connected to an input end of the first amplifier circuit 4, the zero-setting potentiometer 12 is connected to an input end of the first amplifier circuit 4, the humidity adjusting potentiometer 8 is connected to an input end of the first amplifier circuit 4, an output end of the first amplifier circuit 4 is connected to an input end of the first comparator circuit 5, an output end of the first comparator circuit 5 is connected to an input end of the fan control circuit 16, the power supply unit 1 supplies power to the multivibrator 2, the humidity sensor 3, the first amplifier circuit 4, the first comparator circuit 5, the humidity adjusting potentiometer 8, the zero setting potentiometer 12, the monostable trigger 13 and the exhaust fan control circuit 16.
When the temperature and humidity control circuit in the medical equipment is powered on, the humidity sensor 3 starts to work, the humidity sensor 3 detects the humidity in the medical equipment, then the detected humidity is transmitted to the multi-oscillator 2 through a voltage signal, the multi-oscillator 2 transmits the voltage signal to the monostable trigger 13, the monostable trigger 13 transmits the voltage signal to the first amplifier circuit 4, the first amplifier circuit 4 amplifies the voltage signal, then the amplified voltage signal is transmitted to the first comparator circuit 5, the first comparator circuit 5 compares the received voltage signal with a reference value of the voltage signal, if the detected humidity is higher than the reference value, the first comparator circuit 5 controls the exhaust fan control circuit 16 to start to work, the exhaust fan control circuit 16 exhausts moisture in the medical equipment, and when the humidity in the medical equipment is lower than the reference value, first comparator circuit 5 control exhaust fan control circuit 16 stop work to make the inside humidity of medical equipment remain throughout at certain scope, medical personnel can adjust first comparator circuit 5's benchmark value through humidity control potentiometre 8, and medical personnel can also carry out the zero setting work to first amplifier circuit 4 through zero setting potentiometre 12, and when the inside atmospheric control circuit outage of medical equipment back, humidity-sensitive sensor 3 stop work.
Example 3
A temperature and humidity control circuit inside medical equipment is shown in fig. 2, wherein a temperature detection circuit 9 comprises a resistor R2, a potentiometer VR3 and a temperature sensor AD590-U3, a pin 1 of the temperature sensor AD590-U3 is grounded, a pin 2 of the temperature sensor AD590-U3 is connected with the potentiometer VR3 and a resistor R2 in series, the other end of the resistor R2 is connected with +12V, and an adjustable end of the potentiometer VR3 is connected with a resistor R2.
The inverse proportion operational amplifier circuit 10 comprises a dual operational amplifier LM358-U2, a resistor R3, a resistor R5, a resistor R9 and potentiometers VR 4-VR 5, the 1 pin of the dual operational amplifiers LM358-U2 is connected in series with a potentiometer VR4 and a resistor R5, the other end of the resistor R5 is connected with the 2 pins of the temperature sensor AD590-U3, the adjustable end of the potentiometer VR4 is connected with the 1 pin of the dual operational amplifier LM358-U2, the 1 pin of the dual operational amplifiers LM358-U2 is connected in series with a potentiometer VR5 and a resistor R3, the other end of the resistor R3 is grounded, the 2 pins of the dual operational amplifiers LM358-U2 are connected with the 2 pins of the temperature sensors AD590-U3, the 3-pin of the dual operational amplifier LM358-U2 is connected with a resistor R9 in series, the other end of the resistor R9 is grounded, the 4 pins of the dual operational amplifiers LM358-U2 are grounded, and the 8 pins of the dual operational amplifiers LM358-U2 are connected to + 12V.
The second comparator circuit 6 comprises four operational amplifier integrated circuits LM324-U7, potentiometers VR 1-VR 2 and resistors R6 and R7, a 2-pin series resistor R6 of the four operational amplifier integrated circuit LM324-U7, the other end of the resistor R6 is grounded, a 2-pin series potentiometer VR1 of the four operational amplifier integrated circuit LM324-U7, the other end of the potentiometer VR1 is connected with +12V, an adjustable end of the potentiometer VR1 is connected with +12V, an adjustable end of the potentiometer VR5 is connected with a 3-pin of the four operational amplifier integrated circuits LM324-U7, a 4-pin of the four operational amplifier integrated circuits LM324-U7 is connected with +12V, a 6-pin series resistor R7 of the four operational amplifier integrated circuits LM324-U7, the other end of the resistor R7 is grounded, a 6-pin of the four operational amplifier integrated circuits LM324-U7 is connected with a series resistor VR5, another end of the potentials of the four operational amplifier integrated circuits LM324-U7 is connected with a series resistor VR 23 and VR 57312V, the other end of the adjustable end of the resistor R2 and VR 57312V, the 11 pins of the four-operational amplifier integrated circuit LM324-U7 are grounded.
The heating circuit 7 comprises a heater PTC1, a photo coupler OPTOISO1-U1, a resistor R4, a resistor R1, a light emitting diode VD1, a diode D1 and a relay RL1, wherein the anode of the photo coupler OPTOISO1-U1 is connected with the 1 pin of the four operational amplifier integrated circuit LM 324-U1, the cathode of the photo coupler OPTOISO1-U1 is connected in series with the resistor R1, the other end of the resistor R1 is connected with the ground, the emitter of the photo coupler OPTOISO1-U1 is connected with the ground, the collector of the photo coupler OPTOISO1-U1 is connected in series with the resistor R1 and the light emitting diode VD1, the anode of the light emitting diode VD1 is connected with +15V, the two ends of the diode D1 and the relay RL1 are connected in parallel, the anode of the diode D1 is connected with the collector of the photo coupler OPTOISO 72-U1, the cathode of the diode D1 is connected with the anode of the PTC1, the PTC end of the PTC1, the PTC is connected with the anode of the heater NO, the anode of the relay NO 1 and the other end of the relay RL1, the COM end of the relay RL1 is connected with the L end of the alternating current.
The multivibrator 2 comprises a time base integrated circuit NE555-U5, resistors R15-R17, capacitors C1-C2, a capacitor C5, resistors R11-R12, a potentiometer VR6 and a humidity sensor RH1, wherein a pin 1 of the time base integrated circuit NE555-U5 is grounded, a pin 3 of the time base integrated circuit NE555-U5 is connected in series with a resistor R16 and a capacitor C5, the other end of the capacitor C5 is grounded, one end of the resistor R17 is connected with a node between a resistor R16 and a capacitor C5, a pin 4 of the time base integrated circuit NE555-U5 is connected with +5V, a pin 5 of the time base integrated circuit NE-U5 is connected in series with a capacitor C2, the other end of the capacitor C2 is grounded, a pin 6 of the time base integrated circuit NE555-U5 is connected with a pin 7 thereof, the capacitor C1 is connected with the humidity sensor RH, one end of the humidity sensor NE 555-U1 is connected in parallel, and the other end of the time base integrated circuit NE-U5 is connected with the humidity sensor NE 555-U1 in parallel, the time base integrated circuit NE555-U5 is characterized in that a resistor R11, a resistor R12 and a potentiometer VR6 are connected in series through a pin 6, the other end of the potentiometer VR6 is grounded, an adjustable end of the potentiometer VR6 is connected in series through a resistor R15, and a pin 8 of the time base integrated circuit NE555-U5 is connected with + 5V.
The monostable trigger 13 comprises a time base integrated circuit NE555-U6, resistors R13-R14 and capacitors C3-C4, wherein a pin 1 of the time base integrated circuit NE555-U6 is grounded, a pin 2 of the time base integrated circuit NE555-U6 is connected with a pin 6 thereof, a pin 2 of the time base integrated circuit NE555-U6 is connected with a capacitor C4 in series, the other end of the capacitor C4 is grounded, a pin 2 of the time base integrated circuit NE555-U6 is connected with a resistor R14 and a resistor R13 in series, the other end of the resistor R13 is connected with +5V, a pin 3 of the time base integrated circuit 555-U6 is connected with a pin 2 of the time base integrated circuit NE555-U5, a pin 4 of the time base integrated circuit NE555-U6 is connected with a pin +5V, a pin 5 of the time base integrated circuit NE555-U6 is connected with a capacitor C3 in series, the other end of the capacitor C3 is grounded, and the pin 555-U7 of the time base integrated circuit NE-U13 is connected with a resistor R599, the 8 pins of the time base integrated circuit NE555-U6 are connected with + 5V.
The first amplifier circuit 4 comprises an operational amplifier integrated circuit OP07-U8, a resistor R18 and a potentiometer VR7, the other end of the resistor R15 is connected with the 2-pin of the operational amplifier integrated circuit OP07-U8, the 2-pin series resistor R18 and the potentiometer VR7 of the operational amplifier integrated circuit OP07-U8, the other end of the potentiometer VR7 is connected to pin 6 of the OP07-U8, the adjustable terminal of the potentiometer VR7 is connected to pin 6 of the OP07-U8, the other end of the resistor R17 is connected with the 3-pin of the operational amplifier integrated circuit OP07-U8, the pins 4 of the operational amplifier integrated circuits OP07-U8 are connected with the voltage of 5V, the pins 6 of the operational amplifier integrated circuits OP07-U8 are connected with the pins 5 of the four operational amplifier integrated circuits LM324-U7, and the pins 7 of the operational amplifier integrated circuits OP07-U8 are connected with the voltage of + 5V.
The exhaust FAN control circuit 16 comprises a FAN1, a photocoupler OPTOISO2-U4, a resistor R10, a resistor R8, a light emitting diode VD2, a diode D2 and a relay RL2, wherein the anode of the photocoupler OPTOISO2-U4 is connected with the 7 pin of the four operational amplifier integrated circuit LM 324-U4, the cathode of the photocoupler OPTOISO 4-U4 is connected in series with the resistor R4, the other end of the resistor R4 is grounded, the emitter of the photocoupler OPTOISO 4-U4 is grounded, the collector of the photocoupler OPTOISO 4-U4 is connected in series with the resistor R4 and the light emitting diode 4, the anode of the light emitting diode VD 4 is connected with +15V, the two ends of the diode D4 and the relay RL 4 are connected in parallel, the anode of the diode D4 is connected with the collector of the photocoupler OPTOISO 4-U4, the cathode of the diode VD 4V +15V, the cathode of the relay FANO 4 is connected with the FAN RL 4 and the relay FANO 4, the other end of the FAN FAN1 is connected with the N end of the alternating current, and the COM end of the relay RL2 is connected with the L end of the alternating current.
When the temperature and humidity control circuit in the medical equipment is powered on, the temperature sensor AD590-U3 and the humidity sensor RH1 start to work, the temperature sensor AD590-U3 detects the temperature in the medical equipment, then the detected temperature is transmitted to the pin 2 of the dual operational amplifier LM358-U2 through a voltage signal, the dual operational amplifier LM358-U2 amplifies the voltage signal, then the amplified voltage signal is transmitted to the pin 3 of the four operational amplifier integrated circuit LM324-U7, the four operational amplifier integrated circuit LM324-U7 compares the received voltage signal with the reference value thereof, if the detected temperature is lower than the reference value, the pin 1 of the four operational amplifier LM324-U7 outputs high level, the light emitting diode VD1 is lightened, the relay RL1 is attracted, the heater PTC1 starts to work, the PTC1 heats the interior of the medical equipment, when the temperature in the medical device is higher than the reference value, pin 1 of the four operational amplifier integrated circuit LM324-U7 outputs low level, the light emitting diode VD1 is turned off, the relay RL1 is turned off, the heater PTC1 stops working, so that the temperature in the medical device is always kept in a certain range, the medical staff can adjust the reference value of the temperature of the four operational amplifier integrated circuit LM324-U7 through the potentiometer VR1, meanwhile, the humidity sensor RH1 detects the humidity in the medical device, and then transmits the detected humidity to pin 7 of the time base integrated circuit NE555-U6 through a voltage signal, the time base integrated circuit NE555-U6 transmits the voltage signal to pin 2 of the time base integrated circuit NE555-U5, the time base integrated circuit NE555-U5 transmits the voltage signal to pin 3 of the operational amplifier integrated circuit OP07-U8, the operational amplifier integrated circuit 07-U8 amplifies the voltage signal, then the amplified voltage signal is transmitted to the 5 feet of the four operational amplifier integrated circuit LM324-U7, the four operational amplifier integrated circuit LM324-U7 compares the received voltage signal with the reference value thereof, if the detected humidity is higher than the reference value, the 7 feet of the four operational amplifier integrated circuit LM324-U7 output high level, the light emitting diode VD2 lights, the relay RL2 attracts, the FAN FAN1 starts to work, the FAN FAN1 can dehumidify the interior of the medical equipment, when the humidity in the medical equipment is lower than the reference value, the 7 feet of the four operational amplifier integrated circuit LM324-U7 output low level, the light emitting diode VD2 extinguishes, the relay RL2 disconnects, the FAN FAN1 stops working, so that the humidity in the medical equipment is always kept in a certain range, the medical staff can adjust the reference value of the humidity of the four operational amplifier integrated circuit LM324-U7 through the potentiometer VR2, the medical staff can also adjust the zero of the OP 07-U35-U8 through the potentiometer VR7 to carry out the operational amplifier OP 366383-U35 When the temperature and humidity control circuit in the medical equipment is powered off, the temperature sensor AD590-U3 and the humidity sensor RH1 stop working.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.
Claims (10)
1. The temperature and humidity control circuit in the medical equipment is characterized by comprising a power supply unit (1), a second comparator circuit (6), a heating circuit (7), a temperature detection circuit (9), a reverse proportion operation amplification circuit (10), a first potentiometer (11), a temperature sensor (14) and a temperature regulation potentiometer (15), wherein the first potentiometer (11) is connected with the input end of the temperature detection circuit (9), the output end of the temperature sensor (14) is connected with the input end of the temperature detection circuit (9), the output end of the temperature detection circuit (9) is connected with the input end of the reverse proportion operation amplification circuit (10), the temperature regulation potentiometer (15) is connected with the input end of the reverse proportion operation amplification circuit (10), the output end of the reverse proportion operation amplification circuit (10) is connected with the input end of the second comparator circuit (6), the output end of the second comparator circuit (6) is connected with the input end of the heating circuit (7), and the power supply unit (1) supplies power for the second comparator circuit (6), the heating circuit (7), the temperature detection circuit (9), the inverse proportion operation amplification circuit (10), the first potentiometer (11), the temperature sensor (14) and the temperature regulation potentiometer (15).
2. The temperature and humidity control circuit inside medical equipment according to claim 1, further comprising a multivibrator (2), a humidity sensor (3), a first amplifier circuit (4), a first comparator circuit (5), a humidity adjusting potentiometer (8), a zero potentiometer (12), a monostable flip-flop (13) and an exhaust fan control circuit (16), wherein an output end of the humidity sensor (3) is connected with an input end of the multivibrator (2), an output end of the multivibrator (2) is connected with an input end of the monostable flip-flop (13), an output end of the monostable flip-flop (13) is connected with an input end of the first amplifier circuit (4), the zero potentiometer (12) is connected with an input end of the first amplifier circuit (4), and the humidity adjusting potentiometer (8) is connected with an input end of the first amplifier circuit (4), the output of first amplifier circuit (4) is connected with the input of first comparator circuit (5), the output of first comparator circuit (5) is connected with the input of exhaust fan control circuit (16), power supply unit (1) is multivibrator (2), humidity sensor (3), first amplifier circuit (4), first comparator circuit (5), humidity control potentiometer (8), zero-setting potentiometer (12), monostable trigger (13) and exhaust fan control circuit (16) power supply.
3. The temperature and humidity control circuit inside the medical equipment as claimed in claim 2, wherein the temperature detection circuit (9) comprises a resistor R2, a potentiometer VR3 and a temperature sensor AD590-U3, wherein a pin 1 of the temperature sensor AD590-U3 is grounded, a pin 2 of the temperature sensor AD590-U3 is connected in series with the potentiometer VR3 and the resistor R2, the other end of the resistor R2 is connected with +12V, and the adjustable end of the potentiometer VR3 is connected with a resistor R2.
4. The temperature and humidity control circuit inside a medical device according to claim 3, wherein the inverse proportion operational amplifier circuit (10) comprises a dual operational amplifier LM358-U2, a resistor R3, a resistor R5, a resistor R9 and potentiometers VR 4-VR 5, a potentiometer VR4 and a resistor R5 are connected in series with a pin 1 of the dual operational amplifier LM358-U2, the other end of the resistor R5 is connected with a pin 2 of the temperature sensor AD590-U3, an adjustable end of the potentiometer VR4 is connected with a pin 1 of the dual operational amplifier LM358-U2, a potentiometer VR5 and a resistor R3 are connected in series with a pin 1 of the dual operational amplifier LM358-U2, the other end of the resistor R3 is grounded, a pin 2 of the dual operational amplifier LM358-U2 is connected with a pin 2 of the temperature sensor AD590-U3, a resistor LM 9 and a pin 3 of the dual operational amplifier LM358-U2 are connected in series with a pin 3, the other end of the resistor R9 is grounded, the 4 pins of the dual operational amplifiers LM358-U2 are grounded, and the 8 pins of the dual operational amplifiers LM358-U2 are connected with + 12V.
5. The temperature and humidity control circuit inside a medical device according to claim 4, wherein the second comparator circuit (6) comprises four operational amplifier integrated circuits LM324-U7, potentiometers VR 1-VR 2, resistors R6 and R7, a 2-pin series resistor R6 of the four operational amplifier integrated circuits LM324-U7, the other end of the resistor R6 is grounded, a 2-pin series potentiometer VR1 of the four operational amplifier integrated circuits LM324-U7, the other end of the potentiometer VR1 is connected with +12V, an adjustable end of the potentiometer VR1 is connected with +12V, an adjustable end of the potentiometer VR5 is connected with a 3-pin of the four operational amplifier integrated circuits LM324-U7, a 4-pin of the four operational amplifier integrated circuits LM324-U7 is connected with +12V, a 6-pin of the four operational amplifier integrated circuits LM324-U7 is connected with the resistor R7 in series, the other end of the potentiometer VR7 is grounded, and a four operational amplifier integrated circuits LM324-U7 is connected with a potential of the resistor VR2, the other end of the potentiometer VR2 is connected with +12V, the adjustable end of the potentiometer VR2 is connected with +12V, and the 11 pins of the four-operational amplifier integrated circuit LM324-U7 are grounded.
6. The temperature and humidity control circuit inside a medical device according to claim 5, wherein the heating circuit (7) comprises a heater PTC1, a photo coupler OPTOISO1-U1, a resistor R4, a resistor R1, a light emitting diode VD1, a diode D1 and a relay RL1, the anode of the photo coupler OPTOISO1-U1 is connected with the 1 pin of the four-operational amplifier integrated circuit LM324-U7, the cathode of the photo coupler OPTOISO1-U1 is connected in series with the resistor R4, the other end of the resistor R4 is grounded, the emitter of the photo coupler OPTOISO1-U1 is grounded, the collector of the photo coupler OPTOISO1-U1 is connected in series with the resistor R1 and the light emitting diode VD1, the anode of the light emitting diode VD1 is connected with +15V, the two ends of the diode D1 and the relay RL1 are connected in parallel, the anode of the diode D1 is connected with the collector of the photo coupler OPTOISO 1-1, the cathode of the diode D1 is connected with +15V, the NO end of the relay RL1 is connected with the heater PTC1 in series, the other end of the heater PTC1 is connected with the N end of alternating current, and the COM end of the relay RL1 is connected with the L end of the alternating current.
7. The temperature and humidity control circuit inside the medical equipment according to claim 6, wherein the multivibrator (2) comprises a time base integrated circuit NE555-U5, resistors R15 to R17, capacitors C1 to C2, a capacitor C5, resistors R11 to R12, a potentiometer VR6 and a humidity sensor RH1, wherein a 1 pin of the time base integrated circuit NE555-U5 is grounded, a 3 pin of the time base integrated circuit NE555-U5 is connected in series with a resistor R16 and a capacitor C5, the other end of the capacitor C5 is grounded, one end of the resistor R17 is connected with a node between the resistor R16 and the capacitor C5, a 4 pin of the time base integrated circuit NE555-U5 is connected with +5V, a 5 pin of the time base integrated circuit NE555-U5 is connected in series with a capacitor C2, the other end of the capacitor C2 is grounded, a pin of the time base integrated circuit NE555-U5 is connected with a pin of the capacitor C1 and a humidity sensor RH1, one end of the time base integrated circuit NE555-U5 is grounded after parallel connection, the other end of the time base integrated circuit NE555-U5 is connected with the 6 pins of the time base integrated circuit NE555-U5, the 6 pins of the time base integrated circuit NE555-U5 are connected with a resistor R11, a resistor R12 and a potentiometer VR6 in series, the other end of the potentiometer VR6 is grounded, the adjustable end of the potentiometer VR6 is connected with a resistor R15 in series, and the 8 pins of the time base integrated circuit NE555-U5 are connected with + 5V.
8. The temperature and humidity control circuit inside a medical device according to claim 7, wherein the monostable flip-flop (13) comprises a time base integrated circuit NE555-U6, resistors R13-R14 and capacitors C3-C4, wherein the pin 1 of the time base integrated circuit NE555-U6 is grounded, the pin 2 of the time base integrated circuit NE555-U6 is connected with the pin 6 thereof, the pin 2 of the time base integrated circuit NE555-U6 is connected with the capacitor C4 in series, the other end of the capacitor C4 is grounded, the pin 2 of the time base integrated circuit NE555-U6 is connected with the resistor R14 and the resistor R13 in series, the other end of the resistor R13 is connected with +5V, the pin 3 of the time base integrated circuit NE555-U6 is connected with the pin 2 of the time base integrated circuit NE555-U5, the pin 4 of the time base integrated circuit NE555-U6 is connected with +5V, the pin C3 of the time base integrated circuit NE555-U6 is connected with the capacitor C3 in series, the other end of the capacitor C3 is grounded, the pin 7 of the time-base integrated circuit NE555-U6 is connected with the node between the resistor R14 and the resistor R13, and the pin 8 of the time-base integrated circuit NE555-U6 is connected with + 5V.
9. The temperature and humidity control circuit inside a medical device according to claim 8, wherein the first amplifier circuit (4) comprises an operational amplifier integrated circuit OP07-U8, a resistor R18 and a potentiometer VR7, the other end of the resistor R15 is connected with the 2-pin of the operational amplifier integrated circuit OP07-U8, the 2-pin of the operational amplifier integrated circuit OP07-U8 is connected with a resistor R18 and a potentiometer VR7 in series, the other end of the potentiometer VR7 is connected with the 6-pin of the operational amplifier integrated circuit OP07-U8, the adjustable end of the potentiometer VR7 is connected with the 6-pin of the operational amplifier integrated circuit OP07-U8, the other end of the resistor R17 is connected with the 3-pin of the operational amplifier integrated circuit OP07-U8, the 4-pin of the operational amplifier integrated circuit 07-U8 is connected with-5V, the 6-pin of the operational amplifier integrated circuit OP07-U8 is connected with the LM 395-pin of the four operational amplifier integrated circuit OP 324-U7, the 7 pin +5V of the operational amplifier integrated circuit OP 07-U8.
10. The internal temperature and humidity control circuit of a medical device according to claim 9, wherein the exhaust FAN control circuit (16) comprises a FAN1, a photo coupler OPTOISO2-U4, a resistor R10, a resistor R8, a light emitting diode VD2, a diode D2 and a relay RL2, the anode of the photo coupler OPTOISO 2-U28 is connected with the 7-pin of the four-operational amplifier integrated circuit LM324-U7, the cathode of the photo coupler OPTOISO2-U4 is connected with a resistor R10 in series, the other end of the resistor R10 is grounded, the emitter of the photo coupler OPTOISO2-U4 is grounded, the collector of the photo coupler OPTOISO2-U4 is connected with a resistor R4 and a light emitting diode VD 4 in series, the anode of the light emitting diode VD 4 is connected with +15V, the two ends of the diode D4 are connected with the relay RL 4 in parallel, and the anode of the photo coupler OPTOISO 4 is connected with the collector of the photo coupler OPTOISO 4-U4, the cathode of the diode D2 is connected with +15V, the NO end of the relay RL2 is connected with the FAN FAN1 in series, the other end of the FAN FAN1 is connected with the N end of the alternating current, and the COM end of the relay RL2 is connected with the L end of the alternating current.
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| CN202110495388.7A CN113296562A (en) | 2021-05-07 | 2021-05-07 | Inside atmospheric control circuit of medical equipment |
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| CN202110495388.7A CN113296562A (en) | 2021-05-07 | 2021-05-07 | Inside atmospheric control circuit of medical equipment |
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