CN117109125A - Temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner - Google Patents

Temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner Download PDF

Info

Publication number
CN117109125A
CN117109125A CN202211444181.8A CN202211444181A CN117109125A CN 117109125 A CN117109125 A CN 117109125A CN 202211444181 A CN202211444181 A CN 202211444181A CN 117109125 A CN117109125 A CN 117109125A
Authority
CN
China
Prior art keywords
relay
temperature
temperature control
control unit
triode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211444181.8A
Other languages
Chinese (zh)
Inventor
陈相荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202211444181.8A priority Critical patent/CN117109125A/en
Publication of CN117109125A publication Critical patent/CN117109125A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature

Abstract

The application discloses a temperature-limiting anti-freezing start-stop energy-saving switch for a heating ventilation air conditioner, which comprises a power supply module, a temperature control module and a temperature acquisition module; the temperature control module comprises a temperature control unit, a first relay and a second relay, and a control circuit of the first relay and a control circuit of the second relay are both in control connection with the temperature control unit; the working circuit of the first relay and the working circuit of the second relay are both connected to a mains supply line; 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 the mains supply into direct current and then supply power to the temperature control unit, the first relay and the second relay. The temperature-limiting anti-freezing start-stop energy-saving switch for the heating and ventilation air conditioner solves the problems that a traditional temperature controller needs to be provided with temperature, is complex in structure, low in control precision, poor in operation reliability, high in manufacturing cost, short in service life, high in fault and small in energy-saving space.

Description

Temperature-limiting antifreezing 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 temperature-limiting anti-freezing start-stop energy-saving switch for a heating ventilation air conditioner.
Background
The problem that the temperature of the central air conditioner and the central heating system is too high or too low often occurs in the normal operation process, so that the user can feel uncomfortable when the temperature is too cold or too hot, 15% -40% more energy can be wasted, and the operation cost is increased. 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 temperature control start-stop energy conservation in the heating and ventilation central air conditioner and central heating field mainly adopts a manually set temperature controller, and a temperature sensor collects the room temperature according to the set temperature, and sends out operation command to the heating and ventilation central air conditioner to control the room temperature. However, the current temperature control start-stop control switch is required to be independently arranged through manual setting of a temperature controller, and is complex in structure, poor in operation reliability, high in manufacturing cost, short in service life and high in fault.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides a temperature-limiting anti-freezing start-stop energy-saving switch for a heating and ventilation air conditioner, which aims to solve the technical problems in the background art.
A temperature limiting, antifreezing start-stop energy-saving switch for a heating ventilation air conditioner comprises a power supply module, a temperature control module and a temperature acquisition module; wherein,
the temperature control module comprises a temperature control unit, a first relay and a second relay, and a control circuit of the first relay and a control circuit of the second relay are both in control connection with the temperature control unit; the working circuit of the first relay and the working circuit of the second relay are both connected to a mains supply line;
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 first relay and the second 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;
and the positive electrode output of the bridge rectifier circuit is connected with the temperature control unit, the first relay and the second 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 voltage stabilizing triode, and a collector electrode of the voltage stabilizing triode is connected with the positive electrode of the bridge rectifier circuit; the emitter of the voltage stabilizing triode is connected with the temperature control unit, and the base of the voltage stabilizing triode is connected with the voltage stabilizing diode in series and then is connected with the cathode of the bridge rectifier circuit; and a bias resistor is connected in series between the collector and the base of the voltage stabilizing triode.
Further, the power module further comprises a direct current switch, the input end of the direct current switch is connected with the positive electrode of the bridge rectifier circuit, and the output end of the direct current switch is connected with the control circuit of the first relay and the control circuit of the second relay.
Further, the temperature control unit controls the first relay and the second relay through a first triode and a second 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.
Further, the temperature acquisition module is a temperature sensor.
The beneficial effects of the application are as follows:
the temperature-limiting anti-freezing start-stop energy-saving switch for the heating and ventilation air conditioner organically integrates the heating and ventilation field with the control of the lowest limit temperature of cooling in summer, the highest limit temperature of heating in winter and the indoor anti-freezing temperature in winter, and solves the problems that the traditional temperature controller needs to be provided with temperature, has complex structure, low control precision, poor operation reliability, high manufacturing cost, short service life, high fault and small energy-saving space.
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 temperature limiting, anti-freezing 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 the connection of the zener transistor Q3.
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 temperature limiting, antifreezing start-stop and 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 and a temperature acquisition module Q2. The temperature control module comprises a temperature control unit Q1, a first relay K1 and a second relay K2, and a control circuit of the first relay K1 and a control circuit of the second relay K2 are connected with the temperature control unit Q1 in a control mode. The working circuit of the first relay K1 and the working circuit of the second relay K2 are both connected to the live wire L of the mains supply line. In this embodiment, the working circuit of the first relay K1 and the working circuit of the second relay K2 may be respectively connected to an electric valve Q6 on the heating ventilation air conditioner. The electric valve Q6 is a three-wire two-phase electric valve, and when the working circuit of the first relay K1 is electrified and the working circuit of the second relay K2 is deenergized, the electric valve Q6 is opened; when the operating circuit of the first relay K1 is powered off and the operating circuit of the second relay K2 is powered on, the electric valve Q6 is closed. The electric valve Q6 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.
The temperature acquisition module Q2 is in electrical signal connection with the temperature control unit Q1, and the temperature acquisition module Q2 is used for acquiring indoor temperature and sending the indoor temperature data to the temperature control unit Q1. In this embodiment, the temperature acquisition module Q2 employs a temperature sensor. The temperature control unit Q1 may be an existing programmable temperature control integrated unit, for example, a single chip microcomputer, and the model number is STM32F030C6T 6.
The temperature control unit Q1 is internally burnt with a temperature control program, for example, when the temperature of the room is higher than 27 ℃, the temperature control unit Q1 controls the first relay K1 to be closed and the second relay K2 to be in a normally open state, at the moment, the working circuit of the first relay K1 is electrified, the working circuit of the second relay K2 is powered off, the electric valve Q6 on the heating ventilation air conditioner is opened, the room starts to be cooled, when the temperature of the room is reduced to 25 ℃, the temperature control unit Q1 controls the first relay K1 to be opened and the second relay K2 to be closed, at the moment, the working circuit of the first relay K1 is powered off, the working circuit of the second relay K2 is electrified, and the electric valve Q6 on the heating ventilation air conditioner is closed.
When the heating ventilation air conditioner is in a heating state in winter and the heating ventilation air conditioner is adopted indoors, when the indoor temperature is lower than 18 ℃, the temperature control unit Q1 controls the first relay K1 to be closed, the second relay K2 is in a normally open state, at the moment, the working circuit of the first relay K1 is electrified, the working circuit of the second relay K2 is powered off, the electric valve Q6 on the heating ventilation air conditioner is opened, the indoor temperature begins to rise, when the indoor temperature rises to 23 ℃, the temperature control unit Q1 controls the first relay K1 to be opened, the second relay K2 is closed, at the moment, the working circuit of the first relay K1 is powered off, the working circuit of the second relay K2 is electrified, and the electric valve Q6 on the heating ventilation air conditioner is closed.
When the heating ventilation air conditioner is in a heating state in winter and the heating ventilation air conditioner is not adopted indoors, in order to prevent freezing indoors, when the indoor temperature is lower than 4 ℃, the temperature control unit Q1 controls the first relay K1 to be closed, the second relay K2 is in a normally open state, at the moment, the working circuit of the first relay K1 is electrified, the working circuit of the second relay K2 is powered off, the electric valve Q6 on the heating ventilation air conditioner is opened, the indoor temperature begins to rise, when the room temperature rises to 8 ℃, the temperature control unit Q1 controls the first relay K1 to be opened, the second relay K2 is closed, at the moment, the working circuit of the first relay K1 is powered off, the working circuit of the second relay K2 is electrified, and the electric valve Q6 on the heating ventilation air conditioner is closed.
In this embodiment, the power supply module is connected to a mains supply line, and is configured to step down and rectify the mains supply to dc power, and then supply power to the temperature control unit Q1, the first relay K1, and the second relay K2.
Specifically, the power module comprises a transformer T, a bridge rectifier circuit and a filter capacitor C, wherein the bridge rectifier circuit is connected to the output end of the transformer, and 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 Q1, the first relay K1 and the second relay K2. 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 Q1, the first relay K1 and the second relay K2.
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.
The power module further comprises a voltage stabilizing triode Q3, wherein a collector electrode of the voltage stabilizing triode Q3 is connected with a positive electrode of the bridge rectifying circuit, as shown in fig. 2, an emitter electrode of the voltage stabilizing triode Q3 is connected with the temperature control unit Q1, a base electrode of the voltage stabilizing triode Q3 is connected with a voltage stabilizing diode D in series and then is connected with a negative electrode of the bridge rectifying circuit, and a bias resistor R2 is connected between the collector electrode and the base electrode of the voltage stabilizing triode Q3 in series. In the circuit, the emitter outputs constant voltage, and the output voltage is kept unchanged no matter the input voltage is increased or reduced and no matter the load size is changed within a certain range, so that the temperature control unit Q1 can be subjected to voltage stabilization power supply. The voltage output by the emitter is regulated by only selecting a zener diode D corresponding to the breakdown voltage.
The power module further comprises a direct current switch K3, the input end of the direct current switch K3 is connected with the positive electrode of the bridge rectifier circuit, and the output end of the direct current switch K3 is connected with the control circuit of the first relay K1 and the control circuit of the second relay K2. When the user needs to select the first relay K1 and the second relay K2 to execute the control instruction of the temperature control unit Q1, the direct current switch K3 may be manually controlled.
In this embodiment, the temperature control unit Q1 controls the first relay K1 and the second relay K2 through the first triode Q4 and the second triode Q5, respectively. The base electrode of the first triode Q4 is connected with the temperature control unit Q1, and the collector electrode and the emitter electrode of the first triode Q4 are connected in series on the control circuit of the first relay K1. When the temperature control unit Q1 outputs a high level to the base electrode of the first triode Q4, the collector electrode and the emitter electrode of the first triode Q4 are turned on, at this time, the control circuit of the first relay K1 is energized, and the working circuit of the first relay K1 is closed.
The base electrode of the second triode Q5 is connected with the temperature control unit Q1, and the collector electrode and the emitter electrode of the second triode Q5 are connected in series on the control circuit of the second relay K2. When the temperature control unit Q1 outputs a high level to the base electrode of the second triode Q5, the collector electrode and the emitter electrode of the second triode Q5 are turned on, at this time, the control circuit of the second relay K2 is energized, and the working circuit of the second relay K2 is closed.
In summary, the temperature limiting, anti-freezing, start-stop and energy-saving switch for the heating and ventilation air conditioner organically integrates the heating and ventilation field with the control of the lowest temperature of cooling in summer, the highest temperature of heating in winter and the indoor anti-freezing temperature in winter, and solves the problems that the traditional temperature controller needs to be provided with temperature, has complex structure, low control precision, poor operation reliability, high manufacturing cost, short service life, high fault and small energy-saving space.
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 (7)

1. The temperature limiting, antifreezing start-stop energy-saving switch for the heating ventilation air conditioner is characterized by comprising a power supply module, a temperature control module and a temperature acquisition module; wherein,
the temperature control module comprises a temperature control unit, a first relay and a second relay, and a control circuit of the first relay and a control circuit of the second relay are both in control connection with the temperature control unit; the working circuit of the first relay and the working circuit of the second relay are both connected to a mains supply line;
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 first relay and the second relay.
2. The energy-saving switch for heating, ventilation and air conditioning, which is used for limiting temperature, preventing freezing, starting and stopping as claimed 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;
and the positive electrode output of the bridge rectifier circuit is connected with the temperature control unit, the first relay and the second relay.
3. The energy-saving switch for heating, ventilation and air conditioning, which is characterized in that a current-limiting resistor is connected in series between the bridge rectifier circuit and the output end of the transformer.
4. The energy-saving switch for heating, ventilation and air conditioning, which is characterized in that the power module further comprises a voltage stabilizing triode, and a collector of the voltage stabilizing triode is connected with a positive electrode of the bridge rectifier circuit; the emitter of the voltage stabilizing triode is connected with the temperature control unit, and the base of the voltage stabilizing triode is connected with the voltage stabilizing diode in series and then is connected with the cathode of the bridge rectifier circuit; and a bias resistor is connected in series between the collector and the base of the voltage stabilizing triode.
5. The energy-saving switch for heating, ventilation and air conditioning, which is characterized in that the power module further comprises a direct current switch, wherein the input end of the direct current switch is connected with the positive electrode of the bridge rectifier circuit, and the output end of the direct current switch is connected with the control circuit of the first relay and the control circuit of the second relay.
6. The energy-saving switch for heating, ventilation and air conditioning, which is characterized in that the temperature control unit controls the first relay and the second relay through a first triode and a second 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.
7. The temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner as set forth in claim 1, wherein the temperature acquisition module is a temperature sensor.
CN202211444181.8A 2022-11-18 2022-11-18 Temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner Pending CN117109125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211444181.8A CN117109125A (en) 2022-11-18 2022-11-18 Temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211444181.8A CN117109125A (en) 2022-11-18 2022-11-18 Temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner

Publications (1)

Publication Number Publication Date
CN117109125A true CN117109125A (en) 2023-11-24

Family

ID=88811599

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211444181.8A Pending CN117109125A (en) 2022-11-18 2022-11-18 Temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner

Country Status (1)

Country Link
CN (1) CN117109125A (en)

Similar Documents

Publication Publication Date Title
US10047969B2 (en) Energy saving controller
CN102297491B (en) The air-conditioner control method simplified
US20230332799A1 (en) Control circuit for air conditioner outdoor unit, electric control component and air conditioner
CN103836766A (en) Air conditioner indoor unit and automatic static pressure regulating method and device thereof
CN101769576A (en) Total energy-saving environmental base station air-conditioning
CN202404468U (en) Drying and dehydrating humiture self-control instrument
CN101471584A (en) DC/AC power supply source for air conditioner
CN200969041Y (en) Energy saving management temperature controller for central air-conditioner
KR101604761B1 (en) Air conditioner and controlling method of the same
CN117109125A (en) Temperature-limiting antifreezing start-stop energy-saving switch for heating ventilation air conditioner
CN111679595A (en) Power control circuit, control circuit group and household appliance
CN205334212U (en) Intelligent home control system
CN110410954B (en) Adjusting method and device of air conditioner
CN117146417A (en) Heartbeat sensing temperature limiting start-stop energy-saving switch for heating ventilation air conditioner
CN101949573A (en) Intelligent split air-conditioner temperature regulator
CN217636094U (en) Central air conditioning valve energy-saving control system
CN215723701U (en) Energy-saving ventilation system of heating ventilation air conditioner
CN104048391B (en) Linkage integration control mechanism of air cooling heating pump air conditioner indoor unit and water coiler
CN113038639B (en) Electric heating switch control circuit and air conditioner with same
KR102401654B1 (en) Electric Fan Heater
CN212084005U (en) Integrated form temperature controller
CN200990010Y (en) Electricity economizer and air conditioner remote-controller with the same power economizer
CN218526655U (en) Precise air-conditioning energy-saving equipment for data center machine room
JPH1172253A (en) Electric storage type air conditioner
CN214065227U (en) Automatic indoor temperature adjusting system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination