CN107559956A - VMC and its control method - Google Patents

VMC and its control method Download PDF

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Publication number
CN107559956A
CN107559956A CN201710720419.8A CN201710720419A CN107559956A CN 107559956 A CN107559956 A CN 107559956A CN 201710720419 A CN201710720419 A CN 201710720419A CN 107559956 A CN107559956 A CN 107559956A
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China
Prior art keywords
rotating speed
air
valve port
vmc
compressor
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Granted
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CN201710720419.8A
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Chinese (zh)
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CN107559956B (en
Inventor
熊美兵
许永锋
马熙华
任林行
梁泽坤
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201710720419.8A priority Critical patent/CN107559956B/en
Publication of CN107559956A publication Critical patent/CN107559956A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses a kind of VMC and its control method, the VMC includes refrigerant conveying device, indoor set and controller, wherein, refrigerant conveying device includes compressor and four-way valve;Indoor set includes fresh inlet and fresh air outlet, air draft import and wind exhausting outlet, first heat exchanger and exhaust fan, throttling arrangement, second heat exchanger and breeze fan, wherein, one end of throttling arrangement is connected with one end of first heat exchanger, and the other end of throttling arrangement is connected with one end of second heat exchanger;Controller is controlled according to the operational mode of selection and the target component of setting to the exhaust fan, breeze fan, compressor and four-way valve, wherein, feeding interior is exported by fresh air from the outdoor fresh air that fresh inlet enters by second heat exchanger and breeze fan, outdoor is discharged by wind exhausting outlet from the room air that air draft import enters by first heat exchanger and exhaust fan.Fresh air efficiency can be improved, reduces energy consumption, stretch system uses season.

Description

VMC and its control method
Technical field
The invention belongs to air ambient adjustment equipment technical field, more particularly to a kind of VMC and VMC Control method.
Background technology
At present, the implementation of VMC mainly has following several:Mode 1, as shown in figure 1, using indoor set and room The mode of the traditional air conditioner of outer machine provides fresh air solution;Mode 2, using total-heat exchanger provide fresh air solution, The superposition of mode 3, employing mode 1 and mode 2 provides fresh air, mode 4, based on water dispenser end provides fresh air solution. Mode 1 is current mainstream solution, and still, the program is for example higher than 40 degree or low when outdoor temperature is very high or very low When -5 spend, fresh air efficiency can be very low, or even can not provide fresh air;Mode 2 is by cross-ventilation heat-shift, fresh air efficiency It is low, and had a great influence by indoor/outdoor temperature-difference;Mode 3 can properly increase the fresh air efficiency of mode 1, but by outdoor temperature Have a great influence;Mode 4 is influenceed by leaving water temperature, and the dehumidification rate of new blower fan is poor.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, the present invention needs to propose a kind of VMC, the VMC, fresh air efficiency can be improved, reduce energy consumption.
The present invention also proposes a kind of control method of VMC.
In order to solve the above problems, the VMC of one aspect of the present invention embodiment, including:Refrigerant conveying device, it is described Refrigerant conveying device includes compressor and four-way valve;Indoor set, the indoor set includes fresh inlet and fresh air outlet, air draft are entered Mouth and wind exhausting outlet, first heat exchanger and exhaust fan, throttling arrangement, second heat exchanger and breeze fan, wherein, it is described One end of throttling arrangement is connected with one end of the first heat exchanger, and the other end of the throttling arrangement is handed over the described second heat One end of parallel operation is connected;The four-way valve includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve Mouthful connected with one of in second valve port and the 3rd valve port, the 4th valve port and second valve port and institute The other in which connection in the 3rd valve port is stated, first valve port is connected with the exhaust outlet of the compressor, the 4th valve Mouthful it is connected with the gas returning port of the compressor, second valve port is connected with the other end of the second heat exchanger, and described the Three valve ports are connected with the other end of the first heat exchanger;Controller, the controller is according to the operational mode of selection and sets Fixed target component is controlled to the exhaust fan, the breeze fan, the compressor and the four-way valve.
The VMC of the embodiment of the present invention, first heat exchanger and exhaust fan are installed on indoor, its heat exchange Medium sources be metastable indoor environment temperature, the electric energy of VMC can be lifted, reduce annual season energy Consumption;Also, indoor air temperature fluctuation range is far smaller than outdoor environment temperature fluctuation range, thus, VMC can be done It is round-the-clock, annual by 24 hours not shut down operating, improve fresh air efficiency, the season scope that expansion system uses.
In some embodiments of the invention, in air vent mode, the controller controls the breeze fan with default Air-supply rotating speed operation, and control the exhaust fan to be run with air draft rotating speed, wherein, the air draft rotating speed is equal to described preset and sent Wind rotating speed.
In some embodiments of the invention, in air supply pattern, the controller controls the breeze fan with default Air-supply rotating speed operation, and control the exhaust fan to be run with air draft rotating speed, wherein, the air draft rotating speed is less than described preset and sent Wind rotating speed.
In some embodiments of the invention, in air draft pattern, the controller controls the breeze fan with default Air-supply rotating speed operation, and control the exhaust fan to be run with air draft rotating speed, wherein, the air draft rotating speed is more than described preset and sent Wind rotating speed.
In some embodiments of the invention, the VMC also includes temperature sensor, and the temperature sensor is used In the temperature for the fresh air inlet for detecting the indoor set.
In some embodiments of the invention, in refrigeration mode, the controller controls the breeze fan with default Rotating speed of blowing is run, and is determined air draft rotating speed according to the default air-supply rotating speed and is controlled the exhaust fan with the air draft rotating speed Operation, and, when the fresh air inlet temperature is more than design temperature, the compressor and the four-way valve are controlled with fortune of freezing OK, or, when the fresh air inlet temperature is less than or equal to the design temperature, controls the compressor to shut down and cut Shift to air vent mode.
In some embodiments of the invention, in heating mode, the controller controls the breeze fan with default Rotating speed of blowing is run, and is determined air draft rotating speed according to the default air-supply rotating speed and is controlled the exhaust fan with the air draft rotating speed Operation, and, when the fresh air inlet temperature is less than or equal to design temperature, control the compressor and the four-way valve with Heating operation, or, when the fresh air inlet temperature is more than the design temperature, controls the compressor to shut down and cut Shift to the air vent mode.
In some embodiments of the invention, the refrigerant conveying device uses split type or integral with the indoor set Formula.
In order to solve the above problems, the control method for the VMC that another aspect of the present invention embodiment proposes, wherein, institute Stating VMC includes refrigerant conveying device and indoor set, wherein, the refrigerant conveying device includes compressor and four-way valve;Institute Stating indoor set includes fresh inlet and fresh air outlet, air draft import and wind exhausting outlet, first heat exchanger and exhaust fan, throttling Device, second heat exchanger and breeze fan, one end of the throttling arrangement are connected with one end of the first heat exchanger, institute The other end for stating throttling arrangement is connected with one end of the second heat exchanger;The four-way valve includes the first valve port, the second valve Mouth, the 3rd valve port and the 4th valve port, first valve port connect with one of them in second valve port and the 3rd valve port Logical, the 4th valve port connects with the other in which in second valve port and the 3rd valve port, first valve port and The exhaust outlet of the compressor is connected, and the 4th valve port is connected with the gas returning port of the compressor, second valve port and institute The other end for stating second heat exchanger is connected, and the 3rd valve port is connected with the other end of the first heat exchanger;The control Method processed includes:Obtain operational mode and the target component of setting;According to the operational mode and the target component to described Exhaust fan, the breeze fan, the compressor and the four-way valve are controlled.
The control method of the VMC of the embodiment of the present invention, based on first heat exchanger and exhaust fan are installed on into room Inner side, the medium sources of its heat exchange are metastable indoor environment temperature, can lift the electric energy of VMC, drop Low annual season energy consumption;Also, indoor air temperature fluctuation range is far smaller than outdoor environment temperature fluctuation range, thus, can To control VMC 24 hours is round-the-clock, annual not shut down operating, the season scope that expansion system uses.
In some embodiments of the invention, according to the operational mode and the target component to the exhaust fan, The breeze fan, the compressor and the four-way valve be controlled including:In air vent mode, the breeze fan is controlled With default air-supply rotating speed operation;And control the exhaust fan to be run with air draft rotating speed, wherein, the air draft rotating speed is equal to The default air-supply rotating speed.
In some embodiments of the invention, according to the operational mode and the target component to the exhaust fan, The breeze fan, the compressor and the four-way valve be controlled including:In air supply pattern, the breeze fan is controlled With default air-supply rotating speed operation;And control the exhaust fan to be run with air draft rotating speed, wherein, the air draft rotating speed is less than The default air-supply rotating speed.
In some embodiments of the invention, according to the operational mode and the target component to the exhaust fan, The breeze fan, the compressor and the four-way valve be controlled including:In air draft pattern, the breeze fan is controlled With default air-supply rotating speed operation;And control the exhaust fan to be run with air draft rotating speed, wherein, the air draft rotating speed is more than The default air-supply rotating speed.
In some embodiments of the invention, the VMC also includes being used for the fresh air inlet for detecting the indoor set The temperature sensor of temperature, according to the operational mode and the target component to the exhaust fan, the breeze fan, institute State compressor and the four-way valve is controlled and also included:In refrigeration mode, the breeze fan is controlled to turn with default air-supply Speed operation, air draft rotating speed is determined according to the default air-supply rotating speed and controls the exhaust fan to be run with the air draft rotating speed; When the fresh air inlet temperature is more than design temperature, the compressor and the four-way valve are controlled with refrigerating operaton;Or when When the fresh air inlet temperature is less than or equal to the design temperature, controls the compressor to shut down and switch to ventilation mould Formula.
In some embodiments of the invention, the VMC also includes being used for the fresh air inlet for detecting the indoor set The temperature sensor of temperature, according to the operational mode and the target component to the exhaust fan, the breeze fan, institute State compressor and the four-way valve is controlled and also included:In heating mode, the breeze fan is controlled to turn with default air-supply Speed operation, air draft rotating speed is determined according to the default air-supply rotating speed and controls the exhaust fan to be run with the air draft rotating speed; When the fresh air inlet temperature is less than or equal to design temperature, the compressor and the four-way valve are controlled with heating operation; Or when the fresh air inlet temperature is more than the design temperature, controls the compressor to shut down and switch to described Air vent mode.
In some embodiments of the invention, the control method also includes:When outdoor environment temperature is higher than the first protection Temperature threshold or less than second protection temperature threshold when, perform stoppage protection instruction, wherein, it is described first protection temperature threshold More than the described second protection temperature threshold.
Some embodiments of the present invention also propose a kind of computer-readable recording medium, are stored thereon with computer program, The control method of described VMC is realized when the program is executed by processor.
Some embodiments of the present invention also propose a kind of computer applied algorithm, when it is on the processor of computer equipment During execution, the control method of described VMC is performed.
Brief description of the drawings
Fig. 1 is that the traditional air conditioner mode using indoor set and outdoor unit of prior art realizes the schematic diagram of fresh air scheme;
Fig. 2 is the block diagram of VMC according to embodiments of the present invention;
Fig. 3 is the block diagram of VMC according to an embodiment of the invention;
Fig. 4 is the flow chart of the control method of VMC according to embodiments of the present invention;And
Fig. 5 is the flow chart of the control method of VMC according to an embodiment of the invention.
Reference:
VMC 100;
Refrigerant conveying device 10, indoor set 20;
Compressor 11 and four-way valve 12;Fresh inlet I1 and fresh air outlet O1, air draft import I2 and wind exhausting outlet O2, first Heat exchanger 21 and exhaust fan 22, throttling arrangement 23, second heat exchanger 24 and breeze fan 25;Four-way valve 12 includes first Valve port A, the second valve port B, the 3rd valve port D and the 4th valve port C.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The VMC of embodiment according to a first aspect of the present invention is described with reference to the accompanying drawings.
Fig. 2 is the block diagram of VMC according to embodiments of the present invention, as shown in Fig. 2 the fresh air system of the embodiment of the present invention System 100 includes refrigerant conveying device 10, indoor set 20 and controller (not indicated in figure).
Wherein, refrigerant conveying device 10 includes compressor 11 and four-way valve 12.Compressor 11 is responsible for providing refrigerant flowing Power, four-way valve 12 adjust the direction of refrigerant circulation.
Indoor set 20, as its name suggests, indoor or near indoor is installed on, indoor set 20 includes fresh inlet I 1 and fresh air Export O1, air draft import I2 and wind exhausting outlet O2, first heat exchanger 21 and exhaust fan 22, the heat of throttling arrangement 23, second is handed over Parallel operation 24 and breeze fan 25.In an embodiment of the present invention, second heat exchanger 24 and breeze fan 25 are responsible for offer processing Outdoor fresh air function, treated fresh air directly provide fresh air needed for interior;First heat exchanger 21 and exhaust fan 22 are negative Duty distributes or absorbs caused heat or cold after Fresh air handing, to reach system balancing.That is, from fresh inlet I1 The outdoor fresh air of entrance is sent into interior by second heat exchanger 24 and breeze fan 25 by fresh air outlet O1, from air draft import I2 The room air of entrance is discharged outdoor by first heat exchanger 21 and exhaust fan 22 by wind exhausting outlet O2.It is appreciated that It is, because first heat exchanger 21 and exhaust fan 22 are installed on indoor, the cold exchanged required for first heat exchanger 21 Or the foul atmosphere that the source of heat is indoor, the foul atmosphere after the heat exchange of first heat exchanger 21 directly discharge To outdoor.
Wherein, one end of throttling arrangement 23 is connected with one end of first heat exchanger 21, the other end of throttling arrangement 23 with One end of second heat exchanger 34 is connected;Four-way valve 12 includes the first valve port A, the second valve port B, the 3rd valve port D and the 4th valve port C, the first valve port A connect with one of in the second valve port B and the 3rd valve port D, the 4th valve port C and the second valve port B and the 3rd Other in which connection in valve port D, the first valve port A are connected with the exhaust outlet of compressor 11, the 4th valve port C and compressor 11 Gas returning port is connected, and the second valve port B is connected with the other end of second heat exchanger 24, the 3rd valve port D and first heat exchanger 21 The other end is connected.
Specifically, can select operational mode and setting operational factor by remote control or control panel, controller according to The operational mode of selection and the target component of setting are carried out to exhaust fan 22, breeze fan 25, compressor 11 and four-way valve 12 Control, realize the fresh air circulation under each operational mode.
Compared in correlation technique, by the condenser in such as correlation technique of first heat exchanger 21 and its assembling in It is outdoor and such as evaporator of second heat exchanger 24 is installed on interior, the VMC 100 of the embodiment of the present invention, by first Heat exchanger 21 and exhaust fan 22 are installed on indoor or nearly indoor, and the medium sources of its heat exchange are metastable room Interior environment temperature, the electric energy of VMC 100 can be lifted, reduce annual season energy consumption;Also, normally, indoor ring Border temperature range is at 10-32 degrees Celsius, and outdoor environment temperature scope such as north of China is in -43 degrees Celsius of (- 25), Interior Space Gas temperature fluctuation range is far smaller than outdoor environment temperature fluctuation range, thus, VMC 100 cannot be easily caused due to environment Influence and stoppage protection, can accomplish 24 hours it is round-the-clock, annual do not shut down operating, extend the season scope that product uses.
In some embodiments of the invention, refrigerant conveying device 10 can use split type such as Fig. 1 with indoor set 20 It is shown, or, refrigerant conveying device 10 can also use integral type as shown in Figure 3 with indoor set 20.Specifically, refrigerant conveys Device 10 can be connected with indoor set 20 by copper pipeline, and the copper pipeline of connection can be curstomer's site connection, can also It is the product assembled before dispatching from the factory.
In an embodiment of the present invention, the basic operational mode of the VMC 100 of the embodiment of the present invention can include Air vent mode, air supply pattern, air draft pattern, refrigeration mode and heating mode.After system receives power on mode, according to choosing The operational mode and setting operational factor selected are run.
In some embodiments of the invention, in air vent mode, controller controls breeze fan 25 to turn with default air-supply Speed operation, and control exhaust fan 22 to be run with air draft rotating speed, now compressor 11 is in halted state, wherein, air draft rotating speed Equal to default air-supply rotating speed.For example, user selects setting speed gear, breeze fan 25 is run according to setting speed gear, row Wind blower fan 22 is according to the rotation speed operation same with breeze fan 25, the target air volume phase of first heat exchanger 21 and exhaust fan 22 When in resh air requirement with ensure indoor static pressure balance.
In some embodiments of the invention, in air supply pattern, controller controls breeze fan 25 to turn with default air-supply Speed operation, and control exhaust fan 22 to be run with air draft rotating speed, now compressor 11 is in halted state, wherein, air draft rotating speed Less than default air-supply rotating speed.For example, user selects setting speed gear, breeze fan 25 is run according to setting speed gear, row The rotating speed of wind blower fan 22 is that breeze fan 25 rotating speed-N, N are setting value, now, first heat exchanger 21 and exhaust fan 22 Target air volume is less than resh air requirement.
In some embodiments of the invention, in air draft pattern, controller controls breeze fan 25 to turn with default air-supply Speed operation, and control exhaust fan 22 to be run with air draft rotating speed, now compressor 11 is in halted state, wherein, air draft rotating speed More than default air-supply rotating speed.For example, user selects setting speed gear, breeze fan 25 is run according to setting speed gear, row The rotating speed of wind blower fan 22 is that breeze fan 25 rotating speed+N, N are setting value, now, first heat exchanger 21 and exhaust fan 22 Target air volume is more than resh air requirement.
The VMC 100 of the embodiment of the present invention also includes temperature sensor, and temperature sensor is used to detect indoor set The temperature of fresh air inlet.In some embodiments of the invention, in refrigeration mode, controller controls breeze fan 25 with default Rotating speed of blowing is run, and is determined air draft rotating speed according to default air-supply rotating speed and is controlled exhaust fan 22 to be run with air draft rotating speed, wherein, The logical relation of default air-supply rotating speed and air draft rotating speed can be set, according to the default air-supply rotating speed gear of user's selection and is patrolled The relation of collecting can determine air draft rotating speed, and, when fresh air inlet temperature is more than design temperature, control compressor 11 and four-way valve 12 with refrigerating operaton, for example, the first valve port A of four-way valve 12 connects with the 3rd valve port D, the second valve port B and the 4th valve port C connect Logical, compressor 11 exports the refrigerant of HTHP, and then four-way valve 12 flows through first heat exchanger 21, throttling arrangement 23 and second Heat exchanger 24 is back to compressor 11, and now, exhaust fan 22 and breeze fan 25 are run, and realize refrigerating operaton;Or When fresh air inlet temperature is less than or equal to design temperature, controls compressor 11 to shut down and switch to air vent mode.
In cooling mode, when first heat exchanger 21 and exhaust fan 22 carry out hot friendship with the air higher than 32 degrees Celsius When changing, the energy consumption of system can reduce by 25% or so, and it is system meeting automatic shutdown protection that outdoor environment temperature is too high or too low, is used To protect system safe.
In some embodiments of the invention, in heating mode, controller controls breeze fan 25 to turn with default air-supply Speed operation, air draft rotating speed is determined according to default air-supply rotating speed and controls exhaust fan 22 to be run with air draft rotating speed, and, in fresh air When inlet temperature is less than or equal to design temperature, compressor 11 and four-way valve 12 are controlled with heating operation, for example, four-way valve 12 First valve port A connects with the second valve port B, and the 3rd valve port D connects with the 4th valve port C, and compressor 11 exports the refrigerant of HTHP, And then four-way valve 12 flows through second heat exchanger 24, throttling arrangement 23 and first heat exchanger 21 and is back to compressor 11, realize Indoor heating;Or when fresh air inlet temperature is more than design temperature, controls compressor 11 to shut down and switch to ventilation mould Formula.
In a heating mode, when first heat exchanger 21 and exhaust fan 22 carry out hot friendship with the air less than 10 degrees Celsius When changing, the energy consumption of system can reduce by 35% or so, and it is system meeting automatic shutdown protection that outdoor environment temperature is too high or too low, is used To protect system safe.
In short, the VMC 100 of the embodiment of the present invention, first heat exchanger 21 and exhaust fan 22 are arranged on Indoor or near indoor, the heat source carrier of first heat exchanger 21 come from the air inducing of indoor air, by indoor relatively warm The environment temperature of degree lifts the electric energy of new blower fan, simultaneously because the temperature fluctuation range of indoor is far smaller than outdoor ring Border temperature fluctuation range, system can be increased and use season scope, realize annual operating, also, breeze fan 25 and air draft wind The rotating speed and air quantity of machine 22 can adjust according to fresh air Setting pattern, realize the air quantity demand under each pattern.
The control method of the VMC of embodiment according to a second aspect of the present invention is described with reference to the accompanying drawings.Wherein, exist In embodiments of the invention, shown in reference picture 2 or Fig. 3, VMC includes refrigerant conveying device and indoor set, wherein, refrigerant Conveying device includes compressor and four-way valve;Indoor set includes fresh inlet and fresh air outlet, air draft import and wind exhausting outlet, the One heat exchanger and exhaust fan, throttling arrangement, second heat exchanger and breeze fan, one end of throttling arrangement are handed over the first heat One end of parallel operation is connected, and the other end of throttling arrangement is connected with one end of second heat exchanger;Four-way valve includes the first valve port, the Two valve ports, the 3rd valve port and the 4th valve port, the first valve port connect with one of in the second valve port and the 3rd valve port, the 4th valve Mouth connects with the other in which in the second valve port and the 3rd valve port, and the first valve port is connected with the exhaust outlet of compressor, the 4th valve Mouth is connected with the gas returning port of compressor, and the second valve port is connected with the other end of second heat exchanger, and the 3rd valve port and the first heat are handed over The other end of parallel operation is connected.
Fig. 4 is the control method of VMC according to embodiments of the present invention, as shown in figure 4, the embodiment of the present invention is new The control method of wind system includes:
S1, obtain operational mode and the target component of setting.
In some embodiments of the invention, the primary operating mode of the VMC of the embodiment of the present invention can include logical Wind pattern, air supply pattern, air draft pattern, heating mode and refrigeration mode.
S2, exhaust fan, breeze fan, compressor and four-way valve are controlled according to operational mode and target component.
Wherein, exported and be sent into by fresh air by second heat exchanger and breeze fan from the outdoor fresh air that fresh inlet enters Interior, outdoor is discharged by wind exhausting outlet from the room air that air draft import enters by first heat exchanger and exhaust fan.
The control method of the VMC of the embodiment of the present invention, based on first heat exchanger and exhaust fan are arranged on into room Interior, the medium sources of the heat exchange of first heat exchanger are the environment temperature of indoor relative constancy, compared to what is changed greatly Outdoor environment temperature, annual season energy consumption can be reduced, also, the fluctuation of indoor temperature is far smaller than outdoor temperature, Ke Yikuo Big VMC uses season scope.
In some embodiments of the invention, in air vent mode, control breeze fan is with default air-supply rotating speed operation;With And control exhaust fan is run with air draft rotating speed, wherein, air draft rotating speed is equal to default air-supply rotating speed, now, first heat exchanger With the target air volume of exhaust fan equivalent to resh air requirement to ensure that indoor static pressure balances.
In some embodiments of the invention, in air supply pattern, control breeze fan is with default air-supply rotating speed operation;With And control exhaust fan is run with air draft rotating speed, wherein, air draft rotating speed is less than default air-supply rotating speed, now, first heat exchanger And the target air volume of exhaust fan is less than resh air requirement.
In some embodiments of the invention, in air draft pattern, control breeze fan is with default air-supply rotating speed operation;With And control exhaust fan is run with air draft rotating speed, wherein, air draft rotating speed is more than default air-supply rotating speed.Now, first heat exchanger And the target air volume of exhaust fan is more than resh air requirement.
In some embodiments of the invention, VMC also includes the temperature for being used to detect the fresh air inlet temperature of indoor set Sensor is spent, in some embodiments of the invention, in refrigeration mode, control breeze fan is run with default air-supply rotating speed, Air draft rotating speed is determined according to default air-supply rotating speed and controls the exhaust fan to be run with air draft rotating speed;When fresh air inlet temperature is big When design temperature, compressor and four-way valve are controlled with refrigerating operaton;Or when fresh air inlet temperature is less than or equal to setting temperature When spending, control compressor to shut down and switch to air vent mode.
In some embodiments of the invention, in heating mode, control breeze fan is with default air-supply rotating speed operation, root Air draft rotating speed is determined according to default air-supply rotating speed and controls exhaust fan to be run with air draft rotating speed;When fresh air inlet temperature is less than or waits When design temperature, compressor and four-way valve are controlled with heating operation;Or when fresh air inlet temperature is more than design temperature, Control compressor to shut down and switch to air vent mode.
In some embodiments of the invention, when outdoor environment temperature is higher than the first protection temperature threshold or less than second When protecting temperature threshold, stoppage protection instruction is performed, wherein, the first protection temperature threshold is more than the second protection temperature threshold.I.e. When outdoor environment temperature is too high or too low system all can automatic shutdown protection, for protecting system safe.
Based on described above, Fig. 5 is the flow chart of the control method of VMC according to an embodiment of the invention, As shown in figure 5, specifically include:
S100, detect starting key triggering command.
S101, judge the operational mode of VMC.It is determined that it is refrigeration mode, heating mode, air vent mode, air supply pattern Or air draft pattern.In refrigeration mode, into step S102, in heating mode, into step S106, in air vent mode, Into step S111, in air supply pattern, into step S113, in air draft pattern, into step S115.
S102, breeze fan operate according to setting speed gear.
S103, exhaust fan is according to predetermined logic rotation speed operation.
S104, judges whether fresh air inlet temperature is less than or equal to design temperature, if not, into step S105, otherwise, Into step S110.
S105, control compressor and four-way valve cooling activation, and return to step S102.
S106, breeze fan operate according to setting speed gear.
S107, exhaust fan is according to predetermined logic rotation speed operation.
S108, judges whether fresh air inlet temperature is more than design temperature, if it is, into step S110, otherwise enters Step S109.
S109, compressor and four-way valve heating is controlled to start, and return to step S106.
S110, compressor shut down.
S111, breeze fan operate according to setting speed gear.
S112, exhaust fan is according to the same rotation speed operation of breeze fan.
S113, breeze fan operate according to setting speed gear.
S114, exhaust fan according to predetermined logic rotation speed operation, wherein, predetermined logic rotating speed is breeze fan rotating speed-N.
S115, breeze fan operate according to setting speed gear.
S116, exhaust fan according to predetermined logic rotation speed operation, wherein, predetermined logic rotating speed is breeze fan rotating speed+N.
By upper, the control method of the VMC of the embodiment of the present invention, based on first heat exchanger and exhaust fan are set Put indoors or nearly indoor, the heat source carrier of first heat exchanger come from the air inducing of indoor air, by indoor relative The environment temperature of temperature lifts the electric energy of new blower fan, simultaneously because the temperature fluctuation range of indoor is far smaller than outdoor Environmental temperature fluctuation scope, system can be increased and use season scope, realize annual operating, also, exhaust fan and air-supply wind The rotating speed and air quantity of machine can adjust according to fresh air Setting pattern, realize the air quantity demand under each pattern.
Some embodiments of the present invention also propose a kind of computer-readable recording medium, are stored thereon with computer program, The program realizes the control method of the VMC of above-mentioned aspect embodiment when being executed by processor.
Some embodiments of the present invention also propose a kind of computer applied algorithm, when it is on the processor of computer equipment During execution, the control method of the VMC of aspect embodiment as described above is performed.
It should be noted that in the description of this explanation, any process described otherwise above in flow chart or herein Or method description is construed as, represent to include one or more the step of being used to realize specific logical function or process Module, fragment or the part of the code of executable instruction, and the scope of the preferred embodiment of the present invention includes other reality It is existing, wherein order that is shown or discussing can not be pressed, including according to involved function by it is basic and meanwhile in the way of or by phase Anti- order, carrys out perform function, and this should be understood by embodiments of the invention person of ordinary skill in the field.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following:Electricity with one or more wiring Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware Any one of row technology or their combination are realized:With the logic gates for realizing logic function to data-signal Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification.

Claims (17)

  1. A kind of 1. VMC, it is characterised in that including:
    Refrigerant conveying device, the refrigerant conveying device include compressor and four-way valve;
    Indoor set, the indoor set include fresh inlet and fresh air outlet, air draft import and wind exhausting outlet, first heat exchanger and Exhaust fan, throttling arrangement, second heat exchanger and breeze fan, wherein, one end of the throttling arrangement and the described first heat One end of exchanger is connected, and the other end of the throttling arrangement is connected with one end of the second heat exchanger;
    The four-way valve includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve port and described second Valve port connects with one of in the 3rd valve port, the 4th valve port with second valve port and the 3rd valve port Other in which connection, first valve port is connected with the exhaust outlet of the compressor, the 4th valve port and the compression The gas returning port of machine is connected, and second valve port is connected with the other end of the second heat exchanger, the 3rd valve port with it is described The other end of first heat exchanger is connected;
    Controller, the controller according to the operational mode of selection and the target component of setting to the exhaust fan, described give Wind blower fan, the compressor and the four-way valve are controlled.
  2. 2. VMC as claimed in claim 1, it is characterised in that in air vent mode, sent described in the controller control Wind blower fan controls the exhaust fan to be run with air draft rotating speed with default air-supply rotating speed operation, wherein, described air draft rotating speed etc. In the default air-supply rotating speed.
  3. 3. VMC as claimed in claim 1, it is characterised in that in air supply pattern, sent described in the controller control Wind blower fan controls the exhaust fan to be run with air draft rotating speed with default air-supply rotating speed operation, wherein, the air draft rotating speed is small In the default air-supply rotating speed.
  4. 4. VMC as claimed in claim 1, it is characterised in that in air draft pattern, sent described in the controller control Wind blower fan controls the exhaust fan to be run with air draft rotating speed with default air-supply rotating speed operation, wherein, the air draft rotating speed is big In the default air-supply rotating speed.
  5. 5. VMC as claimed in claim 2, it is characterised in that the VMC also includes temperature sensor, described Temperature sensor is used for the temperature for detecting the fresh air inlet of the indoor set.
  6. 6. VMC as claimed in claim 5, it is characterised in that in refrigeration mode, sent described in the controller control Wind blower fan with default air-supply rotating speed operation, air draft rotating speed is determined according to the default air-supply rotating speed and control the exhaust fan with The air draft rotating speed operation, and, when the fresh air inlet temperature is more than design temperature, control the compressor and described four Port valve with refrigerating operaton, or, when the fresh air inlet temperature is less than or equal to the design temperature, control the compressor Shut down and switch to air vent mode.
  7. 7. VMC as claimed in claim 5, it is characterised in that in heating mode, sent described in the controller control Wind blower fan with default air-supply rotating speed operation, air draft rotating speed is determined according to the default air-supply rotating speed and control the exhaust fan with Air draft rotating speed operation, and, when the fresh air inlet temperature is less than or equal to design temperature, control the compressor with The four-way valve with heating operation, or, when the fresh air inlet temperature is more than the design temperature, control the compressor Shut down and switch to the air vent mode.
  8. 8. the VMC as described in claim any one of 1-7, it is characterised in that the refrigerant conveying device and the interior Machine uses split type or integral type.
  9. A kind of 9. control method of VMC, it is characterised in that the VMC includes refrigerant conveying device and indoor set, Wherein, the refrigerant conveying device includes compressor and four-way valve;The indoor set includes fresh inlet and fresh air outlet, air draft Import and wind exhausting outlet, first heat exchanger and exhaust fan, throttling arrangement, second heat exchanger and breeze fan, the section One end of stream device is connected with one end of the first heat exchanger, the other end of the throttling arrangement and second heat exchange One end of device is connected;The four-way valve includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve port Connected with one of in second valve port and the 3rd valve port, the 4th valve port and second valve port and described Other in which connection in 3rd valve port, first valve port are connected with the exhaust outlet of the compressor, the 4th valve port It is connected with the gas returning port of the compressor, second valve port is connected with the other end of the second heat exchanger, and the described 3rd Valve port is connected with the other end of the first heat exchanger;The control method includes:
    Obtain operational mode and the target component of setting;
    According to the operational mode and the target component to the exhaust fan, the breeze fan, the compressor and institute Four-way valve is stated to be controlled.
  10. 10. the control method of VMC as claimed in claim 9, it is characterised in that according to the operational mode and described Target component the exhaust fan, the breeze fan, the compressor and the four-way valve are controlled including:
    In air vent mode, the breeze fan is controlled with default air-supply rotating speed operation;And
    The exhaust fan is controlled to be run with air draft rotating speed, wherein, the air draft rotating speed is equal to the default air-supply rotating speed.
  11. 11. the control method of VMC as claimed in claim 9, it is characterised in that according to the operational mode and described Target component the exhaust fan, the breeze fan, the compressor and the four-way valve are controlled including:
    In air supply pattern, the breeze fan is controlled with default air-supply rotating speed operation;And
    The exhaust fan is controlled to be run with air draft rotating speed, wherein, the air draft rotating speed is less than the default air-supply rotating speed.
  12. 12. the control method of VMC as claimed in claim 9, it is characterised in that according to the operational mode and described Target component the exhaust fan, the breeze fan, the compressor and the four-way valve are controlled including:
    In air draft pattern, the breeze fan is controlled with default air-supply rotating speed operation;And
    The exhaust fan is controlled to be run with air draft rotating speed, wherein, the air draft rotating speed is more than the default air-supply rotating speed.
  13. 13. the control method of VMC as claimed in claim 10, it is characterised in that the VMC also includes being used for The temperature sensor of the fresh air inlet temperature of the indoor set is detected, according to the operational mode and the target component to described Exhaust fan, the breeze fan, the compressor and the four-way valve, which are controlled, also to be included:
    In refrigeration mode, the breeze fan is controlled to be determined with default air-supply rotating speed operation according to the default air-supply rotating speed Air draft rotating speed simultaneously controls the exhaust fan to be run with the air draft rotating speed;
    When the fresh air inlet temperature is more than design temperature, the compressor and the four-way valve are controlled with refrigerating operaton;
    Or when the fresh air inlet temperature is less than or equal to the design temperature, the compressor is controlled to shut down simultaneously Switch to air vent mode.
  14. 14. the control method of VMC as claimed in claim 10, it is characterised in that the VMC also includes being used for The temperature sensor of the fresh air inlet temperature of the indoor set is detected, according to the operational mode and the target component to described Exhaust fan, the breeze fan, the compressor and the four-way valve, which are controlled, also to be included:
    In heating mode, the breeze fan is controlled to be determined with default air-supply rotating speed operation according to the default air-supply rotating speed Air draft rotating speed simultaneously controls the exhaust fan to be run with the air draft rotating speed;
    When the fresh air inlet temperature is less than or equal to design temperature, the compressor and the four-way valve are controlled to heat fortune OK;
    Or when the fresh air inlet temperature is more than the design temperature, controls the compressor to shut down and switch to The air vent mode.
  15. 15. the control method of VMC as claimed in claim 9, it is characterised in that the control method also includes:
    When outdoor environment temperature is higher than the first protection temperature threshold or less than the second protection temperature threshold, stoppage protection is performed Instruction, wherein, the first protection temperature threshold is more than the described second protection temperature threshold.
  16. 16. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is by processor The control method of the VMC as described in claim any one of 9-15 is realized during execution.
  17. 17. a kind of computer applied algorithm, when it is being performed on processor of computer equipment, perform such as claim 9-15 The control method of VMC described in any one.
CN201710720419.8A 2017-08-21 2017-08-21 Fresh air system and control method thereof Active CN107559956B (en)

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CN107894061A (en) * 2017-10-23 2018-04-10 合肥美的暖通设备有限公司 Fresh air conditioner-mechanical, defrosting method and computer-readable recording medium
CN108811455A (en) * 2018-06-28 2018-11-13 欧伏电气股份有限公司 A kind of control method of cold source system, cold source device and cold source system
CN113000077A (en) * 2021-01-26 2021-06-22 珠海格力电器股份有限公司 Negative pressure control method, air treatment equipment and biological safety protection three-level laboratory
CN113465152A (en) * 2021-06-02 2021-10-01 浙江吉利控股集团有限公司 Air conditioner fan system, control method, air conditioner and storage medium
CN113465073A (en) * 2021-06-21 2021-10-01 青岛海尔空调电子有限公司 Control method of ventilation system and ventilation system
CN113701244A (en) * 2021-08-23 2021-11-26 青岛海信日立空调系统有限公司 Fresh air conditioning system

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CN113465152A (en) * 2021-06-02 2021-10-01 浙江吉利控股集团有限公司 Air conditioner fan system, control method, air conditioner and storage medium
CN113465073A (en) * 2021-06-21 2021-10-01 青岛海尔空调电子有限公司 Control method of ventilation system and ventilation system
CN113701244A (en) * 2021-08-23 2021-11-26 青岛海信日立空调系统有限公司 Fresh air conditioning system
CN113701244B (en) * 2021-08-23 2022-06-17 青岛海信日立空调系统有限公司 Fresh air conditioning system

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