CN117146417A - Heartbeat sensing temperature limiting start-stop energy-saving switch for heating ventilation air conditioner - Google Patents

Heartbeat sensing temperature limiting start-stop energy-saving switch for heating ventilation air conditioner Download PDF

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Publication number
CN117146417A
CN117146417A CN202211444187.5A CN202211444187A CN117146417A CN 117146417 A CN117146417 A CN 117146417A CN 202211444187 A CN202211444187 A CN 202211444187A CN 117146417 A CN117146417 A CN 117146417A
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China
Prior art keywords
relay
temperature
triode
human body
temperature control
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CN202211444187.5A
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Chinese (zh)
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陈相荣
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Individual
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Priority to CN202211444187.5A priority Critical patent/CN117146417A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application discloses a heartbeat sensing temperature limiting start-stop energy-saving switch for a heating ventilation air conditioner, which comprises a power supply module, a temperature control module, a human body sensing module and a temperature acquisition module. By collecting the human breath and heartbeat life signal and the indoor temperature signal, the low-temperature protection and temperature limiting start-stop of the heating and ventilation equipment are performed, the problem that the traditional heating and ventilation control equipment cannot consider the energy waste caused by various factors such as people, temperature, freezing prevention and the like is solved, the purposes that the people start, leave the automatic stop, the temperature reaches the required value and the automatic stop is achieved, and the deep efficient energy-saving temperature control target for nursing by special people is not needed. The energy-saving switch solves the problems of temperature setting, complex structure, low control precision, poor operation reliability, high manufacturing cost, short service life, high fault and small energy-saving space of the traditional temperature controller.

Description

Heartbeat sensing temperature limiting start-stop energy-saving switch for heating ventilation air conditioner
Technical Field
The application relates to the technical field of air conditioner switches, in particular to a heartbeat sensing temperature limiting start-stop energy-saving switch for a heating ventilation air conditioner.
Background
The central heating of large central air conditioner is that the main air conditioner and the heat supply boiler transmit the cold and heat energy to the tail end devices such as indoor fan coil, air processor, floor heating pipe, radiator, hot air blower, etc. through water pipeline. The problem that the temperature is too high and too low frequently occurs in a room in the normal heating process can bring uncomfortable feeling of being too cold or too hot to a user on one hand, and on the other hand, 15% -40% of energy sources are wasted more, so that the running cost is increased. The temperature cannot be lower than the freezing point temperature when the local area heating is stopped, and the anti-freezing protection measures need to be considered. Therefore, when the central air conditioner and the central heating end use equipment are used, various factors such as user feeling, temperature, freezing prevention and the like need to be considered at the same time. Therefore, the current heating and ventilation system needs a general temperature-limiting intelligent energy-saving switching device to ensure that the heating and ventilation central air conditioner and the central heating system can be in an optimal temperature state and reduce energy consumption.
At present, the control method and the corresponding control method for the tail end equipment such as a fan coil, an air processor, a ground heating pipe, a radiator, a hot air blower and the like have the following defects:
1) When a three-speed switch and a temperature switch are adopted to control a fan coil, an air processor and a hot air blower, various factors such as people, temperature, freezing prevention and the like cannot be considered timely and simultaneously.
2) The internet start-stop control technology based on big data controls a fan coil, an air processor, a floor heating pipe, a radiator and a hot air blower, and can not timely consider various factors such as people, temperature, freezing prevention and the like.
3) The human body induction start-stop control technology based on the infrared signals judges and executes start-stop signals by detecting the changes of the infrared signals and the heat signals emitted by the human body, and can not continuously output switch signals.
4) The manual start-stop control technology requires a person to control, and cannot consider various factors such as the person, the temperature, the antifreezing and the like at the same time.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides a heartbeat sensing temperature limiting start-stop energy-saving switch for a heating ventilation air conditioner, which aims to solve the technical problems in the background art.
A heartbeat sensing temperature limiting start-stop energy-saving switch for a heating ventilation air conditioner comprises a power supply module, a temperature control module, a human body sensing module and a temperature acquisition module; wherein,
the temperature control module comprises a temperature control unit, a first relay, a second relay and a third relay, and a control circuit of the first relay, a control circuit of the second relay and a control circuit of the third relay are all in control connection with the temperature control unit; the common end of the third relay is connected with a mains supply fire wire, the normal open end of the third relay is connected with the common end of the first relay, and the normal open end of the first relay is connected with an electric valve on a heating ventilation air conditioner; the common end of the second relay is connected with the normally open end of the third relay, and the normally open end of the second relay is connected with an electric valve on the heating ventilation air conditioner;
the human body sensing module comprises a human body sensing unit and a fourth relay, the fourth relay is in control connection with the human body sensing unit, the public end of the fourth relay is connected with the normally closed end of the third relay, the normally closed end of the fourth relay is connected with the normally open end of the first relay, and the normally open end of the fourth relay is connected with the normally open end of the third relay;
the temperature acquisition module is in electrical signal connection with the temperature control unit;
the power supply module is connected with a mains supply line and is configured to step down and rectify mains supply into direct current and then supply power to the temperature control unit, the human body sensing unit, the first relay, the second relay, the third relay and the fourth relay.
Further, the power supply module comprises a transformer, a bridge rectifier circuit and a filter capacitor; wherein,
the bridge rectifier circuit is connected to the output end of the transformer;
the filter capacitor is connected in series between the positive pole and the negative pole of the bridge rectifier circuit;
the positive pole output of the bridge rectifier circuit is connected with the temperature control unit, the human body sensing unit, the first relay, the second relay, the third relay and the fourth relay.
Further, a current limiting resistor is connected in series between the bridge rectifier circuit and the output end of the transformer.
Further, the power module further comprises a first voltage stabilizing triode, and a collector electrode of the first voltage stabilizing triode is connected with the positive electrode of the bridge rectifier circuit; the emitter of the second voltage stabilizing triode is connected with the temperature control unit, and the base of the first voltage stabilizing triode is connected with the first voltage stabilizing diode in series and then connected with the cathode of the bridge rectifier circuit; a first bias resistor is connected in series between the collector and the base of the first voltage stabilizing triode.
Further, the power module further comprises a second voltage stabilizing triode, and a collector electrode of the second voltage stabilizing triode is connected with the positive electrode of the bridge rectifier circuit; the emitter of the second voltage stabilizing triode is connected with the human body sensing unit, and the base of the second voltage stabilizing triode is connected with the second voltage stabilizing diode in series and then connected with the cathode of the bridge rectifier circuit; and a second bias resistor is connected in series between the collector electrode and the base electrode of the second voltage stabilizing triode.
Further, the power module further comprises a direct current switch, and the direct current switch is connected in series to the positive electrode output end of the bridge rectifier circuit.
Further, the temperature control unit controls the first relay, the second relay and the third relay through the first triode, the second triode and the third triode respectively;
the base electrode of the first triode is connected with the temperature control unit, and the collector electrode and the emitter electrode of the first triode are connected in series on the control circuit of the first relay;
the base electrode of the second triode is connected with the temperature control unit, and the collector electrode and the emitter electrode of the second triode are connected in series on the control circuit of the second relay;
and the base electrode of the third triode is connected with the temperature control unit, and the collector electrode and the emitter electrode of the third triode are connected in series on the control circuit of the third relay.
Further, the human body sensing unit controls the fourth relay through a fourth triode;
the base electrode of the fourth triode is connected with the human body sensing unit, and the collector electrode and the emitter electrode of the fourth triode are connected in series on the control circuit of the fourth relay.
Further, the temperature acquisition module is a temperature sensor.
The beneficial effects of the application are as follows:
the heartbeat sensing temperature limiting start-stop energy-saving switch for the heating ventilation air conditioner provided by the application can be used for executing low-temperature protection and temperature limiting start-stop of the heating ventilation equipment by collecting the human respiratory heartbeat vital signals and the indoor temperature signals, so that the problem that the traditional heating ventilation control equipment cannot consider energy waste caused by various factors such as people, temperature, freezing prevention and the like at the same time is solved, the purposes of automatic start-up and people leaving, automatic stop of the temperature reaching a required value and high-efficiency energy-saving temperature control of the depth without nursing by special people are realized.
The energy-saving switch solves the problems of temperature setting, complex structure, low control precision, poor operation reliability, high manufacturing cost, short service life, high fault and small energy-saving space of the traditional temperature controller.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
Fig. 1 is a circuit diagram of a heartbeat-sensing temperature-limiting start-stop energy-saving switch for a heating ventilation air conditioner, which is provided by an embodiment of the application;
fig. 2 is a circuit diagram of a connection of the first zener transistor Q5;
fig. 3 is a circuit diagram of the connection of the second zener transistor Q6.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
As shown in fig. 1, the heartbeat-sensing temperature-limiting start-stop energy-saving switch for a heating ventilation air conditioner provided by the embodiment of the application comprises a power supply module, a temperature control module, a human body sensing module and a temperature acquisition module Q1. The temperature control module comprises a temperature control unit Q2, a first relay K1, a second relay K2 and a third relay K3, wherein a control circuit of the first relay K1, a control circuit of the second relay K2 and a control circuit of the third relay K3 are all in control connection with the temperature control unit Q2; the common end of the third relay K3 is connected with a mains supply fire wire, the normal open end of the third relay K3 is connected with the common end of the first relay K1, and the normal open end of the first relay K1 is connected with an electric valve Q3 on a heating ventilation air conditioner; the public end of the second relay K2 is connected with the normally open end of the third relay K3, and the normally open end of the second relay K2 is connected with an electric valve Q3 on the heating ventilation air conditioner. The electric valve Q3 is arranged on a fan coil pipe of indoor central air-conditioning terminal equipment and a water inlet pipe or a water outlet pipe of an air processor, and realizes the effect of controlling and adjusting the air temperature by controlling the cold water and hot water of the air conditioner to flow through.
In this embodiment, a temperature control program is burned in the temperature control unit Q2, and the temperature control unit Q2 may be an existing programmable temperature control integrated unit, for example, a single chip microcomputer, and the model number is STM32F030C6T6, etc.
The human body sensing module comprises a human body sensing unit Q4 and a fourth relay K4, the fourth relay K4 is in control connection with the human body sensing unit Q4, a public end of the fourth relay K4 is connected with a normally-closed end of the third relay K3, a normally-closed end of the fourth relay K4 is connected with a normally-open end of the first relay K1, and a normally-open end of the fourth relay K4 is connected with a normally-open end of the third relay K3.
In this embodiment, the human body sensing unit Q4 may use a 5.8GHz microwave radar presence sensing SoC chip to confirm whether a person is in the room by detecting the respiratory heartbeat action of the human body. When the human body sensing unit Q4 detects that a person exists in the room, the human body sensing unit Q4 controls the normally open contact of the fourth relay K4 to be closed.
The temperature acquisition module Q1 is in electrical signal connection with the temperature control unit Q2, and the temperature acquisition module Q1 is used for acquiring indoor temperature and sending the indoor temperature data to the temperature control unit Q2. In this embodiment, the temperature acquisition module Q1 employs a temperature sensor.
In this embodiment, the electric valve Q3 is a three-wire two-phase electric valve. When the normally closed end of the third relay K3 is closed and the normally closed end of the fourth relay K4 is closed, the electric valve Q3 is closed; when the normally closed end of the third relay K3 is closed, the normally open end of the fourth relay K4 is closed, and the normally open end of the first relay K1 is closed, the electric valve Q3 is closed; when the normally open end of the third relay K3 is closed and the normally open end of the first relay K1 is closed, the motor valve Q3 is closed.
When the normally closed end of the third relay K3 is closed, the normally open end of the fourth relay K4 is closed, and the normally open end of the second relay K2 is closed, the electric valve Q3 is opened; when the normally open end of the third relay K3 is closed and the normally open end of the second relay K2 is closed, the electric valve Q3 is opened.
It should be noted that, the temperature control unit Q2 does not control the normally open end of the first relay K1 and the normally open end of the second relay K2 to be closed at the same time.
In this embodiment, the specific control flow of the energy-saving switch is as follows:
in summer, the heating ventilation air conditioner is in a refrigerating state, when the indoor temperature is higher than 27 ℃, and the human body sensing unit Q4 senses that no one is in the room, at the moment, the human body sensing unit Q4 controls the normally closed end of the fourth relay K4 to be closed, the temperature control unit Q2 controls the normally closed end of the third relay K3 to be closed, and the electric valve Q3 is closed at the moment. When the indoor temperature is higher than 27 ℃ and the human body sensing unit Q4 senses that a person exists indoors, at the moment, the human body sensing unit Q4 controls the normally open end of the fourth relay K4 to be closed, the temperature control unit Q2 controls the normally closed end of the third relay K3 to be closed and controls the normally open end of the second relay K2 to be closed, at the moment, the electric valve Q3 is opened, and the indoor temperature begins to be reduced; when the room temperature is reduced to 25 ℃, the temperature control unit Q2 controls the normally open end of the second relay K2 to be opened, and the normally open end of the first relay K1 to be closed, and at the moment, the electric valve Q3 is closed.
When the indoor temperature is lower than 18 ℃ and the human body sensing unit Q4 senses that a person is in the room in winter, at the moment, the human body sensing unit Q4 controls the normally open end of the fourth relay K4 to be closed, the temperature control unit Q2 controls the normally closed end of the third relay K3 to be closed and controls the normally open end of the second relay K2 to be closed, the electric valve Q3 is opened, and the room starts to be heated; when the room temperature rises to 23 ℃, the temperature control unit Q2 controls the normally open end of the second relay K2 to be opened, and the normally open end of the first relay K1 to be closed, and at the moment, the electric valve Q3 is closed.
When the heating ventilation air conditioner is in a heating state in winter and the indoor is not heated by adopting the heating ventilation air conditioner (no one is in the indoor), the temperature control unit Q2 controls the normally open end of the third relay K3 to be closed and controls the normally open end of the second relay K2 to be closed when the indoor temperature is lower than 4 ℃ in order to prevent freezing of the indoor, and at the moment, the electric valve Q3 is opened and the indoor temperature begins to rise; when the room temperature rises to 8 ℃, the temperature control unit Q2 controls the normally closed end of the third relay K3 to be closed, and the normally open end of the second relay K2 to be opened, and at the moment, the electric valve Q3 is closed.
It should be noted that the set temperature value may be modified and set in the temperature control unit Q2 according to the actual situation, and the set temperature value is not limited only.
The power supply module is connected with a mains supply line and is configured to step down and rectify the mains supply into direct current and then supply power to the temperature control unit Q2, the human body sensing unit Q4, the first relay K1, the second relay K2, the third relay K3 and the fourth relay K4.
Specifically, the power module includes a transformer T, a bridge rectifier circuit, and a filter capacitor C. The bridge rectifier circuit is connected to the output end of the transformer T; the filter capacitor C is connected in series between the positive electrode and the negative electrode of the bridge rectifier circuit; the positive pole output of the bridge rectifier circuit is connected with the temperature control unit Q2, the human body sensing unit Q4, the first relay K1, the second relay K2, the third relay K3 and the fourth relay K4. The bridge rectifier circuit rectifies the alternating current output after the voltage of the transformer T is reduced into direct current, and the direct current is filtered by the filter capacitor C to supply power to the temperature control unit Q2, the human body sensing unit Q4, the first relay K1, the second relay K2, the third relay K3 and the fourth relay K4.
In order to perform current limiting protection on the bridge rectifier circuit, a current limiting resistor R1 is connected in series between the bridge rectifier circuit and an output end of the transformer T.
The power module further comprises a first voltage stabilizing triode Q5, and a collector electrode of the first voltage stabilizing triode Q5 is connected with the positive electrode of the bridge rectifier circuit. As shown in fig. 2, an emitter of the second zener diode is connected with the temperature control unit Q2, and a base of the first zener diode Q5 is connected in series with the first zener diode D1 and then connected with a cathode of the bridge rectifier circuit; a first bias resistor R2 is connected in series between the collector and the base of the first zener triode Q5. In this circuit, the emitter of the first zener transistor Q5 outputs a constant voltage, and in a certain range, the output voltage remains unchanged regardless of whether the input voltage increases or decreases, and regardless of the load size, so that the temperature control unit Q2 can be supplied with voltage by voltage stabilization. The voltage output by the emitter of the first zener diode Q5 is to be adjusted, and only the first zener diode D1 corresponding to the breakdown voltage is needed to be selected.
Further, the power module further comprises a second voltage stabilizing triode Q6, and a collector electrode of the second voltage stabilizing triode Q6 is connected with an anode of the bridge rectifier circuit. As shown in fig. 3, an emitter of the second zener triode Q6 is connected with the human body sensing unit Q4, and a base of the second zener triode Q6 is connected with the second zener diode D2 in series and then is connected with a cathode of the bridge rectifier circuit; a second bias resistor R3 is connected in series between the collector and the base of the second zener triode Q6. In the circuit, the emitter of the second zener triode Q6 outputs a constant voltage, and in a certain range, no matter the input voltage rises or falls, no matter the load size changes, the output voltage remains unchanged, so that the human body sensing unit Q4 can be subjected to voltage-stabilizing power supply. The voltage output by the emitter of the second zener diode Q6 is adjusted by selecting the second zener diode D2 with the corresponding breakdown voltage.
Further, the power module further comprises a direct current switch K5, and the direct current switch K5 is connected in series to the positive output end of the bridge rectifier circuit. When the user needs to start the energy-saving switch provided by the embodiment, the direct current switch K3 can be manually controlled to be turned on.
In this embodiment, the temperature control unit Q2 controls the first relay K1, the second relay K2 and the third relay K3 through the first triode Q7, the second triode Q8 and the third triode Q9 respectively. The base electrode of the first triode Q7 is connected with the temperature control unit Q2, and the collector electrode and the emitter electrode of the first triode Q7 are connected in series on the control circuit of the first relay K1. When the temperature control unit Q2 outputs a high level to the base electrode of the first triode Q7, the collector electrode and the emitter electrode of the first triode Q7 are turned on, at this time, the control circuit of the first relay K1 is energized, and the normally open end of the first relay K1 is closed.
The base electrode of the second triode Q8 is connected with the temperature control unit Q2, and the collector electrode and the emitter electrode of the second triode Q8 are connected in series on the control circuit of the second relay K2. When the temperature control unit Q2 outputs a high level to the base electrode of the second triode Q8, the collector electrode and the emitter electrode of the second triode Q8 are turned on, at this time, the control circuit of the second relay K8 is energized, and the normally open end of the second relay K8 is closed.
The base electrode of the third triode Q9 is connected with the temperature control unit Q2, and the collector electrode and the emitter electrode of the third triode Q9 are connected in series on the control circuit of the third relay K3. When the temperature control unit Q2 outputs a high level to the base electrode of the third triode Q9, the collector electrode and the emitter electrode of the third triode Q9 are turned on, at this time, the control circuit of the third relay K3 is energized, and the normally open end of the third relay K3 is closed.
In this embodiment, the human body sensing unit Q4 controls the fourth relay K4 through a fourth triode Q10, a base electrode of the fourth triode Q10 is connected with the human body sensing unit Q4, and a collector electrode and an emitter electrode of the fourth triode Q10 are connected in series on a control circuit of the fourth relay K4. When the human body sensing unit Q4 outputs a high level to the base electrode of the fourth triode Q10, the collector electrode and the emitter electrode of the fourth triode Q10 are turned on, and at this time, the control circuit of the fourth triode Q10 is turned on, and the normally open end of the fourth triode Q10 is closed.
In summary, the heartbeat sensing temperature limiting start-stop energy-saving switch for the heating ventilation air conditioner provided by the application can be used for executing low-temperature protection and temperature limiting start-stop of heating ventilation equipment by collecting human respiratory heartbeat life signals and indoor temperature signals, so that the problem that the traditional heating ventilation control equipment cannot consider energy waste caused by various factors such as people, temperature, freezing prevention and the like at the same time is solved, the automatic start of people when people leave and the automatic stop of people are realized, the automatic stop of temperature reaches a required value, and the deep efficient energy-saving temperature control target of special care is not needed.
The energy-saving switch solves the problems of temperature setting, complex structure, low control precision, poor operation reliability, high manufacturing cost, short service life, high fault and small energy-saving space of the traditional temperature controller.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description.

Claims (9)

1. The heartbeat sensing temperature limiting start-stop energy-saving switch for the heating ventilation air conditioner is characterized by comprising a power supply module, a temperature control module, a human body sensing module and a temperature acquisition module; wherein,
the temperature control module comprises a temperature control unit, a first relay, a second relay and a third relay, and a control circuit of the first relay, a control circuit of the second relay and a control circuit of the third relay are all in control connection with the temperature control unit; the common end of the third relay is connected with a mains supply fire wire, the normal open end of the third relay is connected with the common end of the first relay, and the normal open end of the first relay is connected with an electric valve on a heating ventilation air conditioner; the common end of the second relay is connected with the normally open end of the third relay, and the normally open end of the second relay is connected with an electric valve on the heating ventilation air conditioner;
the human body sensing module comprises a human body sensing unit and a fourth relay, the fourth relay is in control connection with the human body sensing unit, the public end of the fourth relay is connected with the normally closed end of the third relay, the normally closed end of the fourth relay is connected with the normally open end of the first relay, and the normally open end of the fourth relay is connected with the normally open end of the third relay;
the temperature acquisition module is in electrical signal connection with the temperature control unit;
the power supply module is connected with a mains supply line and is configured to step down and rectify mains supply into direct current and then supply power to the temperature control unit, the human body sensing unit, the first relay, the second relay, the third relay and the fourth relay.
2. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for a heating ventilation air conditioner as set forth in claim 1, wherein the power module comprises a transformer, a bridge rectifier circuit and a filter capacitor; wherein,
the bridge rectifier circuit is connected to the output end of the transformer;
the filter capacitor is connected in series between the positive pole and the negative pole of the bridge rectifier circuit;
the positive pole output of the bridge rectifier circuit is connected with the temperature control unit, the human body sensing unit, the first relay, the second relay, the third relay and the fourth relay.
3. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for heating ventilation and air conditioning as set forth in claim 2, wherein a current-limiting resistor is connected in series between the bridge rectifier circuit and the output terminal of the transformer.
4. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for heating ventilation and air conditioning as set forth in claim 2, wherein the power module further comprises a first voltage stabilizing triode, and a collector of the first voltage stabilizing triode is connected with a positive electrode of the bridge rectifier circuit; the emitter of the second voltage stabilizing triode is connected with the temperature control unit, and the base of the first voltage stabilizing triode is connected with the first voltage stabilizing diode in series and then connected with the cathode of the bridge rectifier circuit; a first bias resistor is connected in series between the collector and the base of the first voltage stabilizing triode.
5. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for heating ventilation and air conditioning as set forth in claim 2, wherein the power module further comprises a second voltage stabilizing triode, and a collector of the second voltage stabilizing triode is connected with a positive electrode of the bridge rectifier circuit; the emitter of the second voltage stabilizing triode is connected with the human body sensing unit, and the base of the second voltage stabilizing triode is connected with the second voltage stabilizing diode in series and then connected with the cathode of the bridge rectifier circuit; and a second bias resistor is connected in series between the collector electrode and the base electrode of the second voltage stabilizing triode.
6. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for a heating ventilation air conditioner according to claim 2, wherein the power module further comprises a direct current switch, and the direct current switch is connected in series with the positive electrode output end of the bridge rectifier circuit.
7. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for a heating ventilation air conditioner according to claim 1, wherein the temperature control unit controls the first relay, the second relay and the third relay through a first triode, a second triode and a third triode respectively;
the base electrode of the first triode is connected with the temperature control unit, and the collector electrode and the emitter electrode of the first triode are connected in series on the control circuit of the first relay;
the base electrode of the second triode is connected with the temperature control unit, and the collector electrode and the emitter electrode of the second triode are connected in series on the control circuit of the second relay;
and the base electrode of the third triode is connected with the temperature control unit, and the collector electrode and the emitter electrode of the third triode are connected in series on the control circuit of the third relay.
8. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for a heating ventilation air conditioner according to claim 1, wherein the human body sensing unit controls the fourth relay through a fourth triode;
the base electrode of the fourth triode is connected with the human body sensing unit, and the collector electrode and the emitter electrode of the fourth triode are connected in series on the control circuit of the fourth relay.
9. The heartbeat-sensing temperature-limiting start-stop energy-saving switch for a heating ventilation air conditioner according to claim 1, wherein the temperature acquisition module is a temperature sensor.
CN202211444187.5A 2022-11-18 2022-11-18 Heartbeat sensing temperature limiting start-stop energy-saving switch for heating ventilation air conditioner Pending CN117146417A (en)

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CN202211444187.5A CN117146417A (en) 2022-11-18 2022-11-18 Heartbeat sensing temperature limiting start-stop energy-saving switch for heating ventilation air conditioner

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Application Number Priority Date Filing Date Title
CN202211444187.5A CN117146417A (en) 2022-11-18 2022-11-18 Heartbeat sensing temperature limiting start-stop energy-saving switch for heating ventilation air conditioner

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CN117146417A true CN117146417A (en) 2023-12-01

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