CN104748279B - Air energy central air conditioner capable of controlling circulation pump to achieve self-inspection function - Google Patents
Air energy central air conditioner capable of controlling circulation pump to achieve self-inspection function Download PDFInfo
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- CN104748279B CN104748279B CN201510166825.5A CN201510166825A CN104748279B CN 104748279 B CN104748279 B CN 104748279B CN 201510166825 A CN201510166825 A CN 201510166825A CN 104748279 B CN104748279 B CN 104748279B
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- central air
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- circulating pump
- return water
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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
- F24F11/62—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
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
-
- 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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F2120/20—Feedback from users
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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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)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air energy central air conditioner capable of controlling a circulation pump to achieve a self-inspection function. The air energy central air conditioner capable of controlling the circulation pump to achieve the self-inspection function comprises a central air conditioner outdoor unit, the circulation pump, an indoor wind plate, a circulation pipeline, and control circuits installed inside the devices mentioned above. The control circuits comprise a single chip machine control circuit, a temperature detection circuit, a circulation pump control circuit, a central air conditioner outdoor unit compressor control circuit, and a power supply circuit for supplying power to the circuits mentioned above. The single chip machine control circuit controls the start and close of the circulation pump control circuit and the air conditioner outdoor unit compressor control circuit based on a return water temperature detected by the temperature detection circuit. Comparing with the prior art, the air energy central air conditioner capable of controlling the circulation pump to achieve the self-inspection function has the advantages that: when the single chip machine control circuit detects the return water temperature reaches a set temperature, the central air conditioner outdoor unit stands by, and the circulation pump stops working; the circulation pump works for five minutes after every 5 to 30 minutes for detecting the temperature of the working medium, thereby taking effect of saving the electricity.
Description
Technical field
The present invention relates to a kind of possess the air energy central air conditioning that control circulating pump realizes self-checking function.
Background technology
Air energy central air conditioning in the market is by central air-conditioning off-premises station, water-circulating pump, indoor three, wind disk
The basic element of character is constituted, and heat-transfer working medium is pure water, is sequentially connected with circulating line between part, forms a closed water circulation
System.But water-circulating pump is uncontrolled, electricity is wasted, and water-circulating pump operation noise pollution is big.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided one kind possesses control circulating pump and realizes self-inspection work(
The air energy central air conditioning of energy, saves electric energy, reduces the noise pollution of pump operating cycle.
The present invention is achieved by the following technical solutions：It is a kind of to possess the air energy that control circulating pump realizes self-checking function
Central air conditioning, including central air-conditioning off-premises station, circulating pump, indoor wind disk, connect the central air-conditioning off-premises station, the circulating pump and
The circulating line of the indoor wind disk and the control circuit being built in inside said apparatus；
The control circuit include single chip machine controlling circuit, temperature sensing circuit, circulation pump control circuit, outside central air-conditioning room
Machine compressor Control Cprant and its power circuit powered for foregoing circuit；
The delivery port of the central air-conditioning off-premises station to be formed with being connected in the water inlet of the indoor wind disk by the circulating line
Enter water loop；The delivery port of the indoor wind disk is connected by the circulating line with the water inlet of the circulating pump, and the circulating pump
Delivery port is connected by the circulating line with the water inlet of the central air-conditioning off-premises station, forms out water loop；
The temperature sensing circuit is located at the water inlet of the central air-conditioning off-premises station, for detecting return water temperature；The monolithic
Machine control circuit controls the circulation pump control circuit and the central air-conditioning room according to the return water temperature of the temperature sensing circuit detection
The startup and closing of outer machine compressor Control Cprant.
As the further optimization of such scheme, also including human-computer interaction device, the human-computer interaction device and the single-chip microcomputer
Control circuit is electrically connected, and for being input into design temperature, is input into regulating time, open/air energy central air conditioning is closed, select empty
The control model of gas energy central air conditioning.
Used as the further optimization of such scheme, the control method of the single chip machine controlling circuit is：
(31) control model of air energy central air conditioning is selected；
(32) if control model is heating mode：
(321) temperature sensing circuit detection returns the return water temperature of central air-conditioning off-premises station, when return water temperature reaches setting
Temperature after, single chip machine controlling circuit control central air-conditioning off-premises station quit work, while signaling to circulating pump, circulating pump stops
Only work, working medium enters step (322) in rest transition is adjusted
(322) in regulating time, temperature sensing circuit constantly detects return water temperature, when return water temperature ＞ design temperatures-
Temperature return difference, off-premises station does not start, but off-premises station signals to circulating pump, circulates pump startup, working medium circulation, into step
(323)
(323) during working medium circulation, temperature sensing circuit constantly detects return water temperature：
If return water temperature ＞ design temperatures-temperature return difference, circulation pump startup is closed after five minutes；
If return water temperature ＜ design temperatures-temperature return difference, circulating pump is continued to run with, single chip machine controlling circuit control central authorities
Air-conditioner outdoor unit starts, and return water temperature is reached after the temperature of setting, return to step (321).
(33) if control model is refrigeration mode：
(331) temperature sensing circuit detection returns the return water temperature of central air-conditioning off-premises station, when return water temperature reaches setting
Temperature after, single chip machine controlling circuit control central air-conditioning off-premises station quit work, while signaling to circulating pump, circulating pump stops
Only work, working medium enters step (332) in rest transition is adjusted
(332) in regulating time, temperature sensing circuit constantly detects return water temperature, when return water temperature ＜ design temperatures+
Temperature return difference, off-premises station does not start, but off-premises station signals to circulating pump, circulates pump startup, working medium circulation, into step
(333)
(333) during working medium circulation, temperature sensing circuit constantly detects return water temperature：
If return water temperature ＜ design temperatures+temperature return difference, circulation pump startup is closed after five minutes；
If return water temperature ＞ design temperatures+temperature return difference, circulating pump is continued to run with, single chip machine controlling circuit control central hollow
Off-premises station is adjusted to start, return water temperature is reached after the temperature of setting, return to step (331).
Used as the further optimization of such scheme, the single chip machine controlling circuit includes single-chip microcomputer F9224 chips and its periphery
Circuit, the signal output part of single-chip microcomputer F9224 chips is electrically connected with the signal input part of output control circuit, the single-chip microcomputer
The signal output part of F9224 chips is electrically connected with the temperature sensing circuit.
Used as the further optimization of such scheme, the output control circuit includes ULN2003 chips and its peripheral circuit, should
The signal output part of ULN2003 chips first is by the first relay K1, the first A.C. contactor KM1 and circulation pump control circuit electricity
Connection；The ULN2003 chip secondary signals output end passes through the second relay K2, the second A.C. contactor KM2 and central air-conditioning
Compressor of outdoor unit control circuit is electrically connected.
Used as the further optimization of such scheme, the temperature sensing circuit includes thermocouple Rt, electric capacity C3 and resistance R2, should
After thermocouple Rt is in parallel with electric capacity C3, and resistance R2, then electrically connect with single-chip microcomputer F9224 chips.
The present invention has compared to existing technology advantages below：One kind of the present invention possesses control circulating pump and realizes self-checking function
Air energy central air conditioning be the circulating line by central air-conditioning off-premises station, circulating pump, indoor wind disk constitutes water circulation system,
When Host Detection return water temperature reaches design temperature, central air-conditioning off-premises station is standby, and circulating pump quits work, circulating pump interval 5
To 30 minutes, start five minutes, detect Temperature of Working, play saving electric energy effect.
Description of the drawings
Fig. 1 is the working medium operating structure frame of the air energy central air conditioning for possessing control circulating pump self-checking function of the present invention
Figure.
Fig. 2 is the circuit structure of the air energy central air conditioning for possessing control circulating pump self-checking function of the present invention for Fig. 1
Block diagram.
Fig. 3 is the power circuit principle figure in Fig. 2.
Fig. 4 is the temperature sensing circuit schematic diagram in Fig. 2.
Fig. 5 is the output control circuit figure in Fig. 2.
Fig. 6 is the single chip machine controlling circuit figure in Fig. 2.
Fig. 7 is the circulation pump control circuit in Fig. 2.
Fig. 8 is the central air-conditioning compressor of outdoor unit control circuit in Fig. 2.
Specific embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following enforcements
Example.
It is that a kind of of the present invention possesses the air energy central air conditioning that control circulating pump realizes self-checking function referring to Fig. 1
Working medium operating structure block diagram.It is a kind of to possess the air energy central air conditioning that control circulating pump realizes self-checking function, including central hollow
Adjust off-premises station 1, circulating pump 2, indoor wind disk 4, the circulation pipe that connects the central air-conditioning off-premises station, the circulating pump and the indoor wind disk
Road 3 and the control circuit being built in inside said apparatus.Wherein, the delivery port of central air-conditioning off-premises station 1 with pass through circulation pipe
Road 3 connects to be formed into water loop with the water inlet of indoor wind disk 3.The delivery port of indoor wind disk 4 is by circulating line 3 and circulating pump
2 water inlet is connected, and the delivery port of circulating pump 2 is connected by circulating line with the water inlet of central air-conditioning off-premises station 1, is formed
Go out water loop.
It is that a kind of of the present invention possesses the electricity that control circulating pump realizes the air energy central air conditioning of self-checking function referring to Fig. 2
Line structure block diagram.It is a kind of possess control circulating pump realize self-checking function air energy central air conditioning control circuit include monolithic
Machine control circuit, temperature sensing circuit, circulation pump control circuit, central air-conditioning compressor of outdoor unit control circuit and its for above-mentioned
The power circuit that circuit is powered.Wherein, temperature sensing circuit 11 is located at the water inlet of the central air-conditioning off-premises station, for detecting
Return water temperature.Single chip machine controlling circuit according to the return water temperature of temperature sensing circuit detection control the circulation pump control circuit and
The startup and closing of the central air-conditioning compressor of outdoor unit control circuit.
Referring to Fig. 6, single chip machine controlling circuit includes single-chip microcomputer F9224 chips (i.e. IC1) and its peripheral circuit, single-chip microcomputer
The signal output part of F9224 chips is electrically connected with the signal input part of output control circuit, and the signal of single-chip microcomputer F9224 chips is defeated
Go out end to electrically connect with temperature sensing circuit.Referring to Fig. 6, the pin 13 of single-chip microcomputer F9224 chips is electric with the P14 of temperature sensing circuit
Connection.
Referring to Fig. 5, output control circuit include ULN2003 chips (i.e. IC2) and its peripheral circuit (including relay K1,
K2 and electric capacity C4), pin 2, the pin 3 of single-chip microcomputer F9224 chips are electrically connected respectively with P41, P41 end of ULN2003 chips；Respectively
Annexation between components and parts is as shown in Figure 5.Referring to Fig. 7, the signal output part of ULN2003 chips first passes through the first relay
K1, the first A.C. contactor KM1 are electrically connected with circulation pump control circuit.Referring to Fig. 8, ULN2003 chip secondary signal output ends
Electrically connected with central air-conditioning compressor of outdoor unit control circuit by the second relay K2, the second A.C. contactor KM2.
Referring to Fig. 4, temperature sensing circuit includes thermocouple Rt, electric capacity C3 and resistance R2, thermocouple Rt and electric capacity C3
After parallel connection, and resistance R2, then electrically connect with the pin 13 of single-chip microcomputer F9224 chips；Annexation between each components and parts is shown in Fig. 4
It is shown.
If Fig. 3 is power circuit, after by 220V AC powers rectification step-down filtering, the circuit for other parts is provided
Stable voltage；Power circuit includes voltage-stablizer IC3, electric capacity C1-C2, voltage-stabiliser tube D5, the rectification that is made up of diode D1-D4
Bridge, transformer T1, fuse FU；The voltage-stablizer IC3 is three terminal integrated voltage stabilizer 78L05；Connection between each components and parts is closed
System is as shown in Figure 3.
The a kind of of the present invention possesses control circulating pump and realizes that the air energy central air conditioning of self-checking function also includes man-machine friendship
Mutual device, the human-computer interaction device is electrically connected with the single chip machine controlling circuit, for being input into design temperature, is input into regulating time,
Open/air energy central air conditioning is closed, select the control model of air energy central air conditioning.
Wherein, the control method of single chip machine controlling circuit is：Air energy central air conditioning is selected by human-computer interaction device
Control model, be arranged as required to design temperature.
(32) if control model is heating mode：
(321) temperature sensing circuit detection returns the return water temperature of central air-conditioning off-premises station, when return water temperature reaches setting
Temperature after, single chip machine controlling circuit control central air-conditioning off-premises station quit work, while signaling to circulating pump, circulating pump stops
Only work, working medium enters step (322) in rest transition is adjusted；
(322) in regulating time, temperature sensing circuit constantly detects return water temperature, when return water temperature ＞ design temperatures-
Temperature return difference, off-premises station does not start, but off-premises station signals to circulating pump, circulates pump startup, working medium circulation, into step
(323)；
(323) during working medium circulation, temperature sensing circuit constantly detects return water temperature：
If return water temperature ＞ design temperatures-temperature return difference, circulation pump startup is closed after five minutes；
If return water temperature ＜ design temperatures-temperature return difference, circulating pump is continued to run with, single chip machine controlling circuit control central authorities
Air-conditioner outdoor unit starts, and return water temperature is reached after the temperature of setting, return to step (321).
(33) if control model is refrigeration mode：
(331) temperature sensing circuit detection returns the return water temperature of central air-conditioning off-premises station, when return water temperature reaches setting
Temperature after, single chip machine controlling circuit control central air-conditioning off-premises station quit work, while signaling to circulating pump, circulating pump stops
Only work, working medium is in and adjusts rest transition, into step (332)；
(332) in regulating time, temperature sensing circuit constantly detects return water temperature, when return water temperature ＜ design temperatures+
Temperature return difference, off-premises station does not start, but off-premises station signals to circulating pump, circulates pump startup, working medium circulation, into step
(333)；
(333) during working medium circulation, temperature sensing circuit constantly detects return water temperature：
If return water temperature ＜ design temperatures+temperature return difference, circulation pump startup is closed after five minutes；
If return water temperature ＞ design temperatures+temperature return difference, circulating pump is continued to run with, single chip machine controlling circuit control central hollow
Off-premises station is adjusted to start, return water temperature is reached after the temperature of setting, return to step (331).
The a kind of of the present invention possesses the air energy central air conditioning that control circulating pump realizes self-checking function, and regulating time can set
Put, regulating time is generally 5-30 minutes.
Operation principle：The present invention it is a kind of possess control circulating pump realize the air energy central air conditioning of self-checking function be by
Central air-conditioning off-premises station, water-circulating pump, three basic element of character compositions of indoor wind disk, heat-transfer working medium is pure water, is used between part
Circulating line is sequentially connected, and forms a closed water circulation system.It is outdoor when central air-conditioning off-premises station is run with heating mode
Machine heats heat-transfer working medium, while off-premises station makes working medium flow in circulating line to circulating pump working signal, pump operating cycle
Dynamic, the capillary copper pipe that hot working medium is passed through in indoor wind disk is blown to the heat in working medium in room by blower fan, and working medium becomes
It is cold, it is recycled to off-premises station and is heated, run so forth.Set when the Temperature of Working (return water temperature) for returning off-premises station reaches
After fixed temperature, off-premises station quits work, while signaling to circulating pump, circulating pump quits work, and is adjusting resting state, inspection
Survey time coolant-temperature gage, if return water temperature ＞ design temperatures-temperature return difference, off-premises station does not start, but off-premises station signals to circulation
Pump, circulation pump startup, working medium circulation, now off-premises station persistently detects return water temperature, if return water temperature ＞ design temperatures-temperature
Return difference, circulation pump startup is closed after five minutes, if return water temperature ＜ design temperatures-temperature return difference, circulating pump is continued to run with, room
Outer machine starts, and return water temperature is reached after the temperature of setting, and off-premises station, circulating pump quit work.
When central air-conditioning off-premises station runs in a chiller mode, off-premises station freezes heat-transfer working medium, while off-premises station is to circulation
Pump work signal, pump operating cycle makes working medium flow in circulating line, the capillary copper that cold working medium is passed through in indoor wind disk
Pipe, is blown to the cold in working medium in room by blower fan, and working medium heating is recycled to off-premises station and is freezed, and and so on transports
OK.After the Temperature of Working (return water temperature) for returning off-premises station reaches the temperature of setting, off-premises station quits work, while signaling
To circulating pump, circulating pump quits work, and is adjusting resting state, return water temperature is detected, if return water temperature ＜ design temperatures+temperature
Return difference, off-premises station does not start, but off-premises station signals to circulating pump, circulates pump startup, working medium circulation, and now off-premises station is persistently examined
Survey time coolant-temperature gage, if return water temperature ＜ design temperatures+temperature return difference, circulation pump startup is closed after five minutes, if return water temperature ＞
Design temperature+temperature return difference, circulating pump is continued to run with, and off-premises station starts, and return water temperature is reached after the temperature of setting, off-premises station,
Circulating pump quits work.
The present invention it is a kind of possess control circulating pump realize that the air energy central air conditioning of self-checking function is by central air-conditioning
Off-premises station, circulating line, circulating pump, indoor wind disk constitutes water circulation system, when Host Detection return water temperature reaches design temperature,
Central air-conditioning off-premises station is standby, and circulating pump quits work, and circulating pump is spaced 5 to 30 minutes, starts five minutes, wherein, circulating pump
Interval is adjustable setting, generally between 5-30 minutes, detects Temperature of Working, plays saving electric energy effect.
Embodiment above is only that the preferred embodiment of the present invention is described, and not the scope of the present invention is carried out
Limit, on the premise of without departing from design spirit of the present invention, this area ordinary skill technical staff is to technical scheme
The various modifications made and improvement, all should fall in the protection domain of claims of the present invention determination.
Claims (5)
1. the air energy central air conditioning that control circulating pump realizes self-checking function is possessed, it is characterised in that：
Including central air-conditioning off-premises station, circulating pump, indoor wind disk, connect the central air-conditioning off-premises station, the circulating pump and the interior
The circulating line of wind disk and the control circuit being built in inside said apparatus；
The control circuit includes single chip machine controlling circuit, temperature sensing circuit, circulation pump control circuit, central air-conditioning off-premises station pressure
Contracting machine control circuit and its power circuit powered for foregoing circuit；
The delivery port of the central air-conditioning off-premises station is connected to be formed and intake back by the circulating line with the water inlet of the indoor wind disk
Road；The delivery port of the indoor wind disk is connected by the circulating line with the water inlet of the circulating pump, and the delivery port of the circulating pump
Connected with the water inlet of the central air-conditioning off-premises station by the circulating line, form out water loop；
The temperature sensing circuit is located at the water inlet of the central air-conditioning off-premises station, for detecting return water temperature；The single-chip microcomputer control
Circuit processed according to the return water temperature of temperature sensing circuit detection control the circulation pump control circuit and
The startup and closing of the central air-conditioning compressor of outdoor unit control circuit；
The control method of the single chip machine controlling circuit is：
(31) control model of air energy central air conditioning is selected；
(32) if control model is heating mode：
(321) temperature sensing circuit detection returns the return water temperature of central air-conditioning off-premises station, when return water temperature reaches the temperature of setting
After degree, single chip machine controlling circuit control central air-conditioning off-premises station quits work, while signaling to circulating pump, circulating pump stops work
Make, working medium enters step (322) in rest transition is adjusted；
(322) in regulating time, temperature sensing circuit constantly detects return water temperature, when return water temperature ＞ design temperatures-temperature
Return difference, off-premises station does not start, but off-premises station signals to circulating pump, circulates pump startup, working medium circulation, into step (323)；
(323) during working medium circulation, temperature sensing circuit constantly detects return water temperature：
If return water temperature ＞ design temperatures-temperature return difference, circulation pump startup is closed after five minutes；
If return water temperature ＜ design temperatures-temperature return difference, circulating pump is continued to run with, single chip machine controlling circuit control central air-conditioning
Off-premises station starts, and return water temperature is reached after the temperature of setting, return to step (321)；
(33) if control model is refrigeration mode：
(331) temperature sensing circuit detection returns the return water temperature of central air-conditioning off-premises station, when return water temperature reaches the temperature of setting
After degree, single chip machine controlling circuit control central air-conditioning off-premises station quits work, while signaling to circulating pump, circulating pump stops work
Make, working medium enters step (332) in rest transition is adjusted；
(332) in regulating time, temperature sensing circuit constantly detects return water temperature, when return water temperature ＜ design temperatures+temperature
Return difference, off-premises station does not start, but off-premises station signals to circulating pump, circulates pump startup, working medium circulation, into step (333)；
(333) during working medium circulation, temperature sensing circuit constantly detects return water temperature：
If return water temperature ＜ design temperatures+temperature return difference, circulation pump startup is closed after five minutes；
If return water temperature ＞ design temperatures+temperature return difference, circulating pump is continued to run with, single chip machine controlling circuit control central air-conditioning room
Outer machine starts, and return water temperature is reached after the temperature of setting, return to step (331).
2. it is according to claim 1 to possess the air energy central air conditioning that control circulating pump realizes self-checking function, its feature
It is：Also include human-computer interaction device, the human-computer interaction device is electrically connected with the single chip machine controlling circuit, for input setting temperature
Degree, is input into regulating time, open/air energy central air conditioning is closed, select the control model of air energy central air conditioning.
3. it is according to claim 1 to possess the air energy central air conditioning that control circulating pump realizes self-checking function, its feature
It is：The single chip machine controlling circuit includes single-chip microcomputer F9224 chips and its peripheral circuit, the signal of single-chip microcomputer F9224 chips
Output end is electrically connected with the signal input part of output control circuit, signal output part and the temperature of single-chip microcomputer F9224 chips
Detection circuit electrical connection.
4. it is according to claim 3 to possess the air energy central air conditioning that control circulating pump realizes self-checking function, its feature
It is：The output control circuit includes ULN2003 chips and its peripheral circuit, and the signal output part of ULN2003 chips first leads to
Cross the first relay K1, the first A.C. contactor KM1 to electrically connect with circulation pump control circuit；The ULN2003 chip secondary signals
Output end is electrically connected by the second relay K2, the second A.C. contactor KM2 with central air-conditioning compressor of outdoor unit control circuit.
5. it is according to claim 1 to possess the air energy central air conditioning that control circulating pump realizes self-checking function, its feature
It is：The temperature sensing circuit includes thermocouple Rt, electric capacity C3 and resistance R2, after thermocouple Rt is in parallel with electric capacity C3, with
Resistance R2, then electrically connect with single-chip microcomputer F9224 chips.
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| CN201510166825.5A CN104748279B (en) | 2015-04-09 | 2015-04-09 | Air energy central air conditioner capable of controlling circulation pump to achieve self-inspection function |
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| CN201510166825.5A CN104748279B (en) | 2015-04-09 | 2015-04-09 | Air energy central air conditioner capable of controlling circulation pump to achieve self-inspection function |
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| CN104748279B true CN104748279B (en) | 2017-05-03 |
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| CN2505741Y (en) * | 2001-09-18 | 2002-08-14 | 张端桥 | Multi-functional central air conditioner for household |
| CN2830964Y (en) * | 2005-07-19 | 2006-10-25 | 朱大金 | Central air conditioner able to supply hot water |
| CN102022799A (en) * | 2009-09-19 | 2011-04-20 | 袁恒杰 | Energy-saving control method for central air conditioner system |
| CN102109244A (en) * | 2009-12-24 | 2011-06-29 | 广东力优环境系统股份有限公司 | Combined cooling and heating supply system and control method |
| CN102109207A (en) * | 2009-12-24 | 2011-06-29 | 东莞市广大制冷有限公司 | Multi-compressor air conditioner control method and system |
| CN202598761U (en) * | 2011-11-14 | 2012-12-12 | 北京绿色盾安建筑环境技术研究院有限责任公司 | Humiture independent controlled home central air conditioning system |
| JP2014126207A (en) * | 2012-12-25 | 2014-07-07 | Mitsubishi Electric Corp | Air conditioner |
| CN103175350A (en) * | 2013-03-07 | 2013-06-26 | 广东申菱空调设备有限公司 | Heat pump type modularized light water cooling water chilling unit for ship and control method thereof |
| CN204629877U (en) * | 2015-04-09 | 2015-09-09 | 科希曼电器有限公司 | Possesses the air energy central air conditioning that controlled circulation pump realizes self-checking function |
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