CN114879779B - Temperature control circuit based on filter - Google Patents
Temperature control circuit based on filter Download PDFInfo
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- CN114879779B CN114879779B CN202210607643.7A CN202210607643A CN114879779B CN 114879779 B CN114879779 B CN 114879779B CN 202210607643 A CN202210607643 A CN 202210607643A CN 114879779 B CN114879779 B CN 114879779B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
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Abstract
The invention discloses a temperature control circuit based on a filter, which relates to the field of temperature regulation, and comprises: the fire zero line power supply module is used for supplying 220V alternating current and outputting the 220V alternating current to the voltage-reducing rectification filter module and the temperature-increasing working module; the step-down rectifying and filtering module is used for converting 220V alternating current into direct current; the switch module is used for controlling whether the voltage-reducing rectification filter module supplies power for the first temperature signal module, the second temperature signal module and the third temperature signal module; the first temperature signal module is used for detecting the ambient temperature, and compared with the prior art, the invention has the beneficial effects that: according to the invention, whether the equipment needs to be cooled or not is determined through the first temperature signal module and the third temperature signal module, so that cooling errors are prevented, and meanwhile, an interlocking circuit is formed between the temperature rising control module and the temperature lowering control module, so that the temperature rising and lowering working module is prevented from simultaneously carrying out two treatments of temperature rising and temperature lowering.
Description
Technical Field
The invention relates to the field of temperature regulation, in particular to a temperature control circuit based on a filter.
Background
The temperature controller is also called a temperature control switch and a temperature protector, and is divided into two types, namely a mechanical type and an electronic type, and mainly generates physical deformation in the switch according to the temperature change of the working environment, thereby generating certain special effects, generating a series of automatic control elements for turning on or off actions, or providing temperature data for a circuit by using different principles of the working state of an electronic element at different temperatures.
The existing temperature control circuit is only used for collecting temperature signals, the temperature signals are not verified, and when the temperature signals are wrong, the equipment is abnormal in operation and needs to be improved.
Disclosure of Invention
The present invention is directed to a temperature control circuit based on a filter, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a filter-based temperature control circuit, comprising:
the fire zero line power supply module is used for supplying 220V alternating current and outputting the 220V alternating current to the voltage-reducing rectification filter module and the temperature-increasing working module;
the step-down rectifying and filtering module is used for converting 220V alternating current into direct current;
the switch module is used for controlling whether the voltage-reducing rectification filter module supplies power for the first temperature signal module, the second temperature signal module and the third temperature signal module;
the first temperature signal module is used for detecting whether the ambient temperature exceeds an upper limit threshold value or not, and outputting a signal to the cooling control module when the ambient temperature exceeds the upper limit threshold value;
the second temperature signal module is used for detecting whether the ambient temperature is lower than a lower limit threshold value or not, and outputting a signal to the temperature rise control module when the ambient temperature is lower than the lower limit threshold value;
the third temperature signal module is used for detecting whether the environmental temperature exceeds an upper limit threshold value or not, and outputting a signal to the cooling control module when the environmental temperature exceeds the upper limit threshold value;
the temperature reduction control module is used for controlling the temperature increase and decrease working module to reduce the temperature when receiving the input signals of the first temperature signal module and the third temperature signal module at the same time;
the temperature rise control module is used for controlling the temperature rise and fall working module to rise when receiving the input signal of the second temperature signal; the temperature rise control module and the temperature reduction control module form an interlocking circuit;
the temperature-raising and lowering working module is used for carrying out temperature-raising and lowering treatment on the environment during working;
the output end of the fire zero line power supply module is connected with the input end of the buck rectifying and filtering module and the first input end of the temperature rising and falling working module, the output end of the buck rectifying and filtering module is connected with the input end of the switch module, the output end of the switch module is connected with the input end of the first temperature signal module, the input end of the second temperature signal module and the input end of the third temperature signal module, the output end of the first temperature signal module is connected with the first input end of the temperature falling control module, the output end of the third temperature signal module is connected with the second input end of the temperature falling control module, the output end of the temperature falling control module is connected with the second input end of the temperature rising and falling working module, and the output end of the temperature rising control module is connected with the third input end of the temperature rising and falling working module.
As still further aspects of the invention: the first temperature signal module comprises a first potentiometer and a first thermistor, one end of the first potentiometer is connected with the output end of the switch module, the other end of the first potentiometer is connected with the first thermistor, the other end of the first thermistor is grounded, and the sliding end of the first potentiometer is connected with the first input end of the first AND gate of the cooling control module.
As still further aspects of the invention: the second temperature signal module comprises a second potentiometer and a second thermistor, one end of the second thermistor is connected with the output end of the switch module, the other end of the second thermistor is connected with the second potentiometer, the other end of the second potentiometer is grounded, and the sliding end of the second potentiometer is connected with the input end of a second AND gate of the temperature rise control module.
As still further aspects of the invention: the third temperature signal module comprises a temperature sensor, a fifth resistor, a third potentiometer, a third diode and a second capacitor, wherein the power end of the temperature sensor is connected with the output end of the switch module, the grounding end of the temperature sensor is grounded, the output end of the temperature sensor is connected with the fifth resistor, the other end of the fifth resistor is connected with the third potentiometer, the other end of the third potentiometer is connected with the negative electrode of the third diode, the positive electrode of the third diode is connected with one end of the second capacitor and the second input end of the first AND gate of the cooling control module, and the other end of the second capacitor is grounded.
As still further aspects of the invention: the temperature reduction control module comprises a first AND gate, a first MOS tube, a first diode and a first relay, wherein a first input end of the first AND gate is connected with an output end of the first temperature signal module, a second input end of the first AND gate is connected with an output end of the third temperature signal module, an output end of the first AND gate is connected with a third resistor and an S pole of the first MOS tube, a G pole of the first MOS tube is connected with a fourth resistor, a D pole of the first MOS tube is connected with a negative pole of the first diode and the first relay, an anode of the first diode is grounded, and the other end of the first relay is grounded.
As still further aspects of the invention: the temperature rise control module comprises a second AND gate, a second MOS tube, a second diode and a second relay, wherein the input end of the second AND gate is connected with the output end of the second temperature signal module, the output end of the second AND gate is connected with the other end of the fourth resistor and the S pole of the second MOS tube, the G pole of the second MOS tube is connected with the other end of the third resistor, the D pole of the second MOS tube is connected with the negative pole of the second diode and one end of the second relay, the positive pole of the second diode is grounded, and the other end of the second relay is grounded.
As still further aspects of the invention: the fire zero line power supply module comprises a fire wire and a zero line, the temperature raising and lowering working module comprises a first switch, a second switch, a heater and a motor, one end of the first switch is connected with the fire wire, the other end of the first switch is connected with the motor, the other end of the motor is connected with the zero line, one end of the second switch is connected with the fire wire, the other end of the second switch is connected with the heater, and the other end of the heater is connected with the zero line; when the first relay works, the first switch is closed, the motor works in a power-on mode, water pumping or air blowing is carried out, and accordingly cooling is carried out; when the second relay works, the second switch is closed, and the heater works electrically to heat.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, whether the equipment needs to be cooled or not is determined through the first temperature signal module and the third temperature signal module, so that cooling errors are prevented, and meanwhile, an interlocking circuit is formed between the temperature rising control module and the temperature lowering control module, so that the temperature rising and lowering working module is prevented from simultaneously carrying out two treatments of temperature rising and temperature lowering.
Drawings
Fig. 1 is a schematic diagram of a filter-based temperature control circuit.
Fig. 2 is a circuit diagram of a filter-based temperature control circuit.
Fig. 3 is a circuit diagram of a third temperature signal module.
Description of the embodiments
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1, a temperature control circuit based on a filter includes:
the fire zero line power supply module 1 is used for supplying 220V alternating current and outputting the 220V alternating current to the step-down rectifying and filtering module 2 and the temperature-raising and lowering working module 9;
the step-down rectifying and filtering module 2 is used for converting 220V alternating current into direct current;
the switch module 3 is used for controlling whether the step-down rectifying and filtering module 2 supplies power to the first temperature signal module 4, the second temperature signal module 5 and the third temperature signal module 6;
the first temperature signal module 4 is used for detecting whether the environmental temperature exceeds an upper limit threshold value, and outputting a signal to the cooling control module 7 when the environmental temperature exceeds the upper limit threshold value;
the second temperature signal module 5 is used for detecting whether the ambient temperature is lower than a lower limit threshold value, and outputting a signal to the temperature rise control module 8 when the ambient temperature is lower than the lower limit threshold value;
the third temperature signal module 6 is used for detecting whether the environmental temperature exceeds an upper limit threshold value, and outputting a signal to the cooling control module 7 when the environmental temperature exceeds the upper limit threshold value;
the cooling control module 7 is used for controlling the cooling work module 9 to cool when receiving the input signals of the first temperature signal module 4 and the third temperature signal module 6 at the same time;
the temperature rise control module 8 is used for controlling the temperature rise and fall working module 9 to raise the temperature when receiving the input signal of the second temperature signal; the temperature rise control module 8 and the temperature reduction control module 7 form an interlocking circuit;
the temperature rise and fall working module 9 is used for carrying out temperature rise and fall treatment on the environment during working;
the output end of the fire zero line power supply module 1 is connected with the input end of the buck rectifying and filtering module 2 and the first input end of the temperature rise and fall working module 9, the output end of the buck rectifying and filtering module 2 is connected with the input end of the switch module 3, the output end of the switch module 3 is connected with the input end of the first temperature signal module 4, the input end of the second temperature signal module 5 and the input end of the third temperature signal module 6, the output end of the first temperature signal module 4 is connected with the first input end of the temperature reduction control module 7, the output end of the third temperature signal module 6 is connected with the second input end of the temperature reduction control module 7, the output end of the second temperature reduction control module 5 is connected with the second input end of the temperature rise and fall working module 9, and the output end of the temperature rise control module 8 is connected with the third input end of the temperature rise and fall working module 9.
In particular embodiments: referring to fig. 2, the buck rectifying and filtering module 2 includes a transformer W, a rectifier T, and a filter (composed of a capacitor C1, an inductor L1, and a resistor R1), and the buck rectifying and filtering process is performed on the 220V ac through the transformer W, the rectifier T, and the filter to become the low-voltage dc. The switch module 3 comprises a switch S3 and a resistor R2, after the switch S3 is pressed, the circuit is powered to start working, and the voltage-reducing rectification filter module 2 supplies power for the first temperature signal module 4, the second temperature signal module 5 and the third temperature signal module 6 through the switch module 3.
In this embodiment: referring to fig. 2, the first temperature signal module 4 includes a first potentiometer RP1 and a first thermistor RW1, one end of the first potentiometer RP1 is connected to the output end of the switch module 3, the other end of the first potentiometer RP1 is connected to the first thermistor RW1, the other end of the first thermistor RW1 is grounded, and the sliding end of the first potentiometer RP1 is connected to the first input end of the first and gate U1 of the cooling control module 7.
The higher the temperature of the first thermistor RW1 is, the larger the resistance is, so when the ambient temperature exceeds the upper threshold, the voltage of the first thermistor RW1 plus the lower half of the sliding end of the first potentiometer RP1 is at a high level, and a high level signal is output to the cooling control module 7.
In another implementation: the first potentiometer RP1 may be replaced by a resistor, where the first potentiometer RP1 is used to conveniently adjust the upper threshold temperature, so as to ensure that when the upper threshold temperature is reached, a high level can be output to the cooling control module 7.
In this embodiment: referring to fig. 2, the second temperature signal module 5 includes a second potentiometer RP2 and a second thermistor RW2, one end of the second thermistor RW2 is connected to the output end of the switch module 3, the other end of the second thermistor RW2 is connected to the second potentiometer RP2, the other end of the second potentiometer RP2 is grounded, and the sliding end of the second potentiometer RP2 is connected to the input end of the second and gate U2 of the temperature raising control module 8.
The higher the temperature of the second thermistor RW2 is, the larger the resistance is, so when the ambient temperature is lower than the lower threshold, the resistance of the second thermistor RW2 is small, so that the voltage of the lower half part of the sliding end of the second potentiometer RP2 is high, and a high-level signal is output to the temperature rise control module 8.
In another implementation: the second potentiometer RP2 may be replaced with a resistor, and the lower threshold temperature may not be adjusted after the resistor is replaced.
In this embodiment: referring to fig. 3, the third temperature signal module 6 includes a temperature sensor U3, a fifth resistor R5, a third potentiometer RP3, a third diode D3, and a second capacitor C2, where a power end of the temperature sensor U3 is connected to an output end of the switch module 3, a ground of the temperature sensor U3 is grounded, an output end of the temperature sensor U3 is connected to the fifth resistor R5, another end of the fifth resistor R5 is connected to the third potentiometer RP3, another end of the third potentiometer RP3 is connected to a negative electrode of the third diode D3, a positive electrode of the third diode D3 is connected to one end of the second capacitor C2 and a second input end of the first and gate U1 of the cooling control module 7, and another end of the second capacitor C2 is grounded.
The output voltage of the temperature sensor U3 is proportional to the ambient temperature within a certain range, so that when the ambient temperature exceeds the upper threshold, the output voltage of the temperature sensor U3 breaks down the third diode D3 (zener diode) to supply the temperature reduction control module 7 with a high level.
In another embodiment: the second capacitor C2 may be omitted, and the second capacitor C2 is used herein to stabilize the voltage that just breaks down the third diode D3, reducing voltage fluctuations.
In this embodiment: referring to fig. 2, the cooling control module 7 includes a first and gate U1, a first MOS tube V1, a first diode D1, and a first relay J1, where a first end of an input end of the first and gate U1 is connected to an output end of the first temperature signal module 4, a second input end of the first and gate U1 is connected to an output end of the third temperature signal module 6, an output end of the first and gate U1 is connected to one end of the third resistor R3 and an S pole of the first MOS tube V1, a G pole of the first MOS tube V1 is connected to a fourth resistor R4, a D pole of the first MOS tube V1 is connected to a negative pole of the first diode D1 and the first relay J1, an anode of the first diode D1 is grounded, another end of the first relay J1 is grounded, another end of the third resistor R3 is connected to the temperature raising control module 8, and another end of the fourth resistor R4 is connected to the temperature raising control module 8.
When the high levels of the first temperature signal module 4 and the third temperature signal module 6 are received, the first AND gate U1 outputs the high level, the first relay J1 is powered through the first MOS tube V1, and the first relay J1 is powered on to control the first switch S1 to be closed for cooling treatment.
In another embodiment: the first diode D1 may be omitted, the first diode D1 is a freewheeling diode, and the instantaneous high voltage generated when the first relay J1 is discharging is discharged.
In this embodiment: referring to fig. 2, the temperature raising control module 8 includes a second and gate U2, a second MOS transistor V2, a second diode D2, and a second relay J2, wherein an input end of the second and gate U2 is connected to an output end of the second temperature signal module 5, an output end of the second and gate U2 is connected to the other end of the fourth resistor R4 and an S pole of the second MOS transistor V2, a G pole of the second MOS transistor V2 is connected to the other end of the third resistor R3, a D pole of the second MOS transistor V2 is connected to a negative pole of the second diode D2 and the second relay J2, an anode of the second diode D2 is grounded, and another end of the second relay J2 is grounded.
When the high level of the second temperature signal module 5 is received, the second AND gate U2 outputs the high level, the second relay J2 is powered through the second MOS tube V2, the second relay J2 is electrically controlled to close the second switch S2, and temperature rising processing is carried out. The first MOS tube V1 and the second MOS tube V2 are PMOS tubes.
In another embodiment: the first MOS tube V1 and the second MOS tube V2 can be omitted, the first MOS tube V1, the second MOS tube V2, the third resistor R3 and the fourth resistor R4 form an interlocking circuit, only one operation of the temperature rise control module 8 and the temperature reduction control module 7 at the same time is ensured, and the temperature rise control module 8 or the temperature reduction control module 7 is prevented from simultaneously operating when the first temperature signal module 4, the second temperature signal module 5 and the third temperature signal module 6 are failed.
In this embodiment: referring to fig. 2, the fire zero line power supply module 1 includes a fire line L and a zero line N, the temperature raising and lowering working module 9 includes a first switch S1, a second switch S2, a heater X, and a motor M, one end of the first switch S1 is connected with the fire line L, the other end of the first switch S1 is connected with the motor M, the other end of the motor M is connected with the zero line N, one end of the second switch S2 is connected with the fire line L, the other end of the second switch S2 is connected with the heater X, and the other end of the heater X is connected with the zero line N.
When the first relay J1 works, the first switch S1 is closed, the motor M is powered on to perform water pumping or blowing, and accordingly cooling is performed; when the second relay J2 works, the second switch S2 is closed, and the heater X works electrically. Heating is performed.
In another embodiment: the heater X and the motor M can also be powered by direct current.
The working principle of the invention is as follows: the power supply module 1 supplies 220V alternating current to the buck rectification filter module 2 and the temperature rise and fall working module, the buck rectification filter module 2 converts the 220V alternating current into direct current, the switch module 3 controls whether the buck rectification filter module 2 supplies power to the first temperature signal module 4, the second temperature signal module 5 and the third temperature signal module 6, the first temperature signal module 4 detects whether the environmental temperature exceeds an upper limit threshold value, when the environmental temperature exceeds the upper limit threshold value, the second temperature signal module 5 detects whether the environmental temperature is lower than a lower limit threshold value, when the environmental temperature is lower than the lower limit threshold value, the output signal is supplied to the temperature rise control module 8, the third temperature signal module 6 detects whether the environmental temperature exceeds the upper limit threshold value, when the environmental temperature exceeds the upper limit threshold value, the output signal is supplied to the temperature fall control module 7, the temperature rise control module 7 controls the temperature rise and fall working module 9 to rise when the input signals of the first temperature signal module 4 and the third temperature signal module 6 are received simultaneously, and the temperature rise control module 8 controls the temperature rise and fall working module 9 to cool when the input signals of the second temperature signal are received; the temperature rise control module 8 and the temperature reduction control module 7 form an interlocking circuit, and the temperature rise and temperature reduction working module 9 carries out temperature rise and temperature reduction treatment on the environment when working. The invention ensures that double judgment is carried out through the first temperature signal module 4 and the third temperature signal when cooling is carried out, thereby preventing error cooling; meanwhile, the interlocking circuit prevents energy waste caused by temperature rise and drop.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (1)
1. A temperature control circuit based on a filter, characterized in that:
the temperature control circuit based on the filter comprises:
the fire zero line power supply module is used for supplying 220V alternating current and outputting the 220V alternating current to the voltage-reducing rectification filter module and the temperature-increasing working module;
the step-down rectifying and filtering module is used for converting 220V alternating current into direct current;
the switch module is used for controlling whether the step-down rectifying and filtering module supplies power for the first temperature signal module, the second temperature signal module and the third temperature signal module;
the first temperature signal module is used for detecting whether the ambient temperature exceeds an upper limit threshold value or not, and outputting a signal to the cooling control module when the ambient temperature exceeds the upper limit threshold value;
the second temperature signal module is used for detecting whether the ambient temperature is lower than a lower limit threshold value or not, and outputting a signal to the temperature rise control module when the ambient temperature is lower than the lower limit threshold value;
the third temperature signal module is used for detecting whether the environmental temperature exceeds an upper limit threshold value or not, and outputting a signal to the cooling control module when the environmental temperature exceeds the upper limit threshold value;
the temperature reduction control module is used for controlling the temperature increase and decrease working module to reduce the temperature when receiving the input signals of the first temperature signal module and the third temperature signal module at the same time;
the temperature rise control module is used for controlling the temperature rise and fall working module to rise when receiving the input signal of the second temperature signal; the temperature rise control module and the temperature reduction control module form an interlocking circuit;
the temperature-raising and lowering working module is used for carrying out temperature-raising and lowering treatment on the environment during working;
the output end of the fire zero line power supply module is connected with the input end of the buck rectifying and filtering module and the first input end of the temperature rise and fall working module, the output end of the buck rectifying and filtering module is connected with the input end of the switch module, the output end of the switch module is connected with the input end of the first temperature signal module, the input end of the second temperature signal module and the input end of the third temperature signal module, the output end of the first temperature signal module is connected with the first input end of the temperature reduction control module, the output end of the third temperature signal module is connected with the second input end of the temperature reduction control module, the output end of the temperature reduction control module is connected with the second input end of the temperature rise and fall working module, and the output end of the temperature rise control module is connected with the third input end of the temperature rise and fall working module;
the first temperature signal module comprises a first potentiometer and a first thermistor, one end of the first potentiometer is connected with the output end of the switch module, the other end of the first potentiometer is connected with the first thermistor, the other end of the first thermistor is grounded, and the sliding end of the first potentiometer is connected with the first input end of the first AND gate of the cooling control module;
the second temperature signal module comprises a second potentiometer and a second thermistor, one end of the second thermistor is connected with the output end of the switch module, the other end of the second thermistor is connected with the second potentiometer, the other end of the second potentiometer is grounded, and the sliding end of the second potentiometer is connected with the input end of a second AND gate of the temperature rise control module;
the third temperature signal module comprises a temperature sensor, a fifth resistor, a third potentiometer, a third diode and a second capacitor, wherein the power end of the temperature sensor is connected with the output end of the switch module, the grounding end of the temperature sensor is grounded, the output end of the temperature sensor is connected with the fifth resistor, the other end of the fifth resistor is connected with the third potentiometer, the other end of the third potentiometer is connected with the cathode of the third diode, the anode of the third diode is connected with one end of the second capacitor and the second input end of the first AND gate of the cooling control module, and the other end of the second capacitor is grounded;
the temperature reduction control module comprises a first AND gate, a first MOS tube, a first diode and a first relay, wherein a first input end of the first AND gate is connected with an output end of the first temperature signal module, a second input end of the first AND gate is connected with an output end of the third temperature signal module, an output end of the first AND gate is connected with a third resistor and an S pole of the first MOS tube, a G pole of the first MOS tube is connected with a fourth resistor, a D pole of the first MOS tube is connected with a negative pole of the first diode and the first relay, an anode of the first diode is grounded, and the other end of the first relay is grounded;
the temperature rise control module comprises a second AND gate, a second MOS tube, a second diode and a second relay, wherein the input end of the second AND gate is connected with the output end of the second temperature signal module, the output end of the second AND gate is connected with the other end of the fourth resistor and the S pole of the second MOS tube, the G pole of the second MOS tube is connected with the other end of the third resistor, the D pole of the second MOS tube is connected with the negative pole of the second diode and one end of the second relay, the positive pole of the second diode is grounded, and the other end of the second relay is grounded;
the fire zero line power supply module comprises a fire wire and a zero line, the temperature raising and lowering working module comprises a first switch, a second switch, a heater and a motor, one end of the first switch is connected with the fire wire, the other end of the first switch is connected with the motor, the other end of the motor is connected with the zero line, one end of the second switch is connected with the fire wire, the other end of the second switch is connected with the heater, and the other end of the heater is connected with the zero line; when the first relay works, the first switch is closed, the motor works in a power-on mode, water pumping or air blowing is carried out, and accordingly cooling is carried out; when the second relay works, the second switch is closed, and the heater works electrically to heat.
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| CN109459935A (en) * | 2017-09-06 | 2019-03-12 | 深圳市海洋王照明工程有限公司 | Intelligent housing circuit |
| CN111756371A (en) * | 2020-07-03 | 2020-10-09 | 上海奥令科电子科技有限公司 | Temperature compensation method, auxiliary circuit and voltage-controlled oscillation device |
| CN215582447U (en) * | 2021-08-18 | 2022-01-18 | 上海云磐网络技术有限公司 | 5G basic station ventilation cooling device |
| CN114520602A (en) * | 2020-11-19 | 2022-05-20 | 重庆美的制冷设备有限公司 | Temperature detection circuit, drive chip, intelligent power module and air conditioner |
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2022
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| CN1250587A (en) * | 1997-01-27 | 2000-04-12 | 塞米图尔公司 | Model based temperature controller for semiconductor thermal processors |
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| CN109459935A (en) * | 2017-09-06 | 2019-03-12 | 深圳市海洋王照明工程有限公司 | Intelligent housing circuit |
| CN109119965A (en) * | 2018-09-19 | 2019-01-01 | 湖南小快智造电子科技有限公司 | Safety utilization of electric power device |
| CN111756371A (en) * | 2020-07-03 | 2020-10-09 | 上海奥令科电子科技有限公司 | Temperature compensation method, auxiliary circuit and voltage-controlled oscillation device |
| CN114520602A (en) * | 2020-11-19 | 2022-05-20 | 重庆美的制冷设备有限公司 | Temperature detection circuit, drive chip, intelligent power module and air conditioner |
| CN215582447U (en) * | 2021-08-18 | 2022-01-18 | 上海云磐网络技术有限公司 | 5G basic station ventilation cooling device |
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| CN114879779A (en) | 2022-08-09 |
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