CN105650817A - Control method and control device of air-conditioner, and air-conditioner - Google Patents
Control method and control device of air-conditioner, and air-conditioner Download PDFInfo
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- CN105650817A CN105650817A CN201610050567.9A CN201610050567A CN105650817A CN 105650817 A CN105650817 A CN 105650817A CN 201610050567 A CN201610050567 A CN 201610050567A CN 105650817 A CN105650817 A CN 105650817A
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- Prior art keywords
- conditioner
- exhaust pressure
- force value
- outdoor fan
- control
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Classifications
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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
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
- F25B2600/111—Fan speed control of condenser fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
- F25B2600/112—Fan speed control of evaporator fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention provides a control method and a control device of an air-conditioner, and an air-conditioner, wherein the air-conditioner comprises a refrigeration system, an indoor fan, and an outdoor fan; the control method of the air-conditioner comprises the following steps: when an instruction of starting the air-conditioner is received, detecting an operating mode of the air-conditioner and detecting a discharge pressure of a compressor in the refrigeration system; and controlling the indoor fan and/or the outdoor fan according to the discharge pressure and the operating mode of the air-conditioner so as to control a pressure of the refrigeration system. The technical solution of the present invention is capable of immediately controlling the indoor fan and/or the outdoor fan to ensure that the system pressure is adjusted to a non-stop pressure range upon detecting abnormal discharge pressure of the compressor; in such a manner, smooth start and reliable operation of the air-conditioner system are guaranteed, and therefore, the comfort of a user using the air-conditioner is improved.
Description
Technical field
The present invention relates to conditioner technical field, specifically, it relates to a kind of control method of conditioner, the control device of a kind of conditioner and a kind of conditioner.
Background technology
When existing conditioner is started shooting under high-temperature refrigeration pattern; the ramp-up rate of system pressure is faster than the speed of sensor sensing temperature; cause system when having little time to make the protection act suitably reducing pressure, just directly enter high voltage protective and shut down, affect the comfortable property that user uses.
Equally; in a heating mode; particularly when indoor and outdoor surroundings temperature head is higher; easily occurring starting instantaneously, compressor start current anomaly is big; the problem that system pressure raises suddenly; and then system also can be caused to have little time to make the protection act suitably reducing pressure, just directly enter high voltage protective and shut down or cause overload of compressor to protect, the situation of compressor stop jumping occurs.
At present, high-voltage switch gear installed by some conditioners, and when a setup pressure value is reached, high-voltage switch gear is action at once, causes pressure switch frequent movement, and conditioner cannot normally run. In addition; the conditioner also having has vaporizer high temperature protection program; principle checks condensing temperature by evaporator temperature sensor, and when temperature reaches design temperature, just control outdoor fan is out of service, reaches the object reducing condensing pressure, securing system safety with this. But, owing to compressor is in startup moment, the rise in temperature of vaporizer is far from the fast of pressure increase, thus when temperature does not reach protection temperature, pressure switch just action, and then cause air-conditioning to be shut down, seriously affect the comfortable property that user uses.
Summary of the invention
The present invention is intended to one of technical problem at least solving existence in prior art or correlation technique.
For this reason; it is an object of the present invention to the control program proposing a kind of new conditioner; can when detecting that the exhaust pressure of compressor is abnormal; guarantee to be adjusted to by system pressure in non-stop-machine pressure range by indoor fan and/or outdoor fan carry out control in time; ensure smooth startup and the reliability service of air-conditioning system, thus improve the comfort of user.
Another object of the present invention is to propose a kind of conditioner.
For achieving the above object, embodiment according to the first aspect of the invention, propose a kind of control method of conditioner, described conditioner comprises refrigeration system, indoor fan and outdoor fan, the control method of described conditioner comprises: when receiving the instruction starting conditioner, detect the operational mode of described conditioner, and detect the exhaust pressure of compressor in described refrigeration system; According to the operational mode of described exhaust pressure and described conditioner, described indoor fan and/or described outdoor fan are controlled, controls with the pressure to described refrigeration system.
The control method of conditioner according to an embodiment of the invention; owing to compressor is in startup moment; the rise in temperature of vaporizer does not have the fast of pressure increase; if system pressure is adjusted by the temperature therefore according to vaporizer; when system then can be caused to have little time to make the protection act reducing pressure; system just directly enters high voltage protective, and then can affect the comfort of user. And by the operational mode of detection conditioner and the exhaust pressure of compressor; with the operational mode of the exhaust pressure according to compressor and conditioner; indoor fan and/or outdoor fan are controlled; make when detecting that the exhaust pressure of compressor is abnormal; can in time by indoor fan and/or outdoor fan be controlled; reach the object of Indirect method system pressure; and then can guarantee to be adjusted to by system pressure in non-stop-machine pressure range; ensure smooth startup and the reliability service of air-conditioning system, thus improve the comfort of user.
The control method of conditioner according to the abovementioned embodiments of the present invention, it is also possible to there is following technology feature:
According to one embodiment of present invention, according to the operational mode of described exhaust pressure and described conditioner, to the step that described indoor fan and/or described outdoor fan control, specifically comprise: if described conditioner carries out work in a chiller mode, then
When detecting that described exhaust pressure is less than or equals the first force value, control described outdoor fan and carry out work with the wind speed set; Detecting that described exhaust pressure is greater than described first force value, and when being less than the 2nd force value, controlling described outdoor fan and carry out work to be greater than the wind speed of the first preset value; When detecting that described exhaust pressure is more than or equal to described 2nd force value, control described conditioner out of service.
The control method of conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work in a chiller mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, control outdoor fan carries out work to be greater than the wind speed of the first preset value, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the first preset value can be the superelevation wind speed of outdoor fan.
According to one embodiment of present invention, after the described outdoor fan of control carries out the step of work to be greater than the wind speed of the first preset value, also comprise: described exhaust pressure is less than or equals described first force value if detecting, then add up long when described exhaust pressure is less than or equals described first force value lasting; Described lasting time reach the first scheduled duration time, control described outdoor fan and carry out work with the wind speed of described setting.
The control method of conditioner according to an embodiment of the invention, at control outdoor fan with after being greater than the wind speed of the first preset value and carrying out work, if when exhaust pressure compressor being detected reaches the first scheduled duration when being less than or equal the first force value lasting, control outdoor fan carries out work with the wind speed set, it is possible to avoid the force value of refrigeration system long-time lower and affect the refrigeration of conditioner. Wherein, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, according to the operational mode of described exhaust pressure and described conditioner, to the step that described indoor fan and/or described outdoor fan control, specifically comprise: if described conditioner carries out work with heating mode, then
When detecting that described exhaust pressure is less than or equals the first force value, control described indoor fan and described outdoor fan carries out work with the wind speed set respectively; Detecting that described exhaust pressure is greater than described first force value, and when being less than the 2nd force value, controlling described indoor fan and carry out work to be greater than the wind speed of the 2nd preset value, and controlling described outdoor fan and reduce desired speed; When detecting that described exhaust pressure is more than or equal to described 2nd force value, control described conditioner out of service.
The control method of conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work with heating mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, watch-keeping cubicle inner blower carries out work to be greater than the wind speed of the 2nd preset value, and control outdoor fan and reduce desired speed, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the 2nd preset value can be the high wind speed of indoor fan; It can be that one grade of operation falls in control outdoor fan that control outdoor fan reduces desired speed.
According to one embodiment of present invention, carry out work at the described indoor fan of control to be greater than the wind speed of the 2nd preset value, and after controlling the step that described outdoor fan reduces desired speed, and through the 2nd scheduled duration, also comprise:
If described exhaust pressure is still greater than described first force value, and it is less than described 2nd force value, then controls described outdoor fan and again reduce desired speed, until described outdoor fan is shut down; If described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting, and described lasting time reach the 3rd scheduled duration time, control described outdoor fan and increase desired speed, until the rotating speed of described outdoor fan reaches the wind speed of described setting.
The control method of conditioner according to an embodiment of the invention, by carrying out work at watch-keeping cubicle inner blower to be greater than the wind speed of the 2nd preset value, and after controlling outdoor fan reduction desired speed, and through the 2nd scheduled duration, if the exhaust pressure of compressor is still greater than the first force value, and be less than the 2nd force value, then control outdoor fan and again reduce desired speed, it is possible to continue to reduce the force value of refrigeration system; And when reaching the 3rd scheduled duration when the exhaust pressure of compressor is less than or equals the first force value lasting, control outdoor fan increases desired speed, it is possible to avoid the force value of refrigeration system long-time lower and affect the heating effect of conditioner. Wherein, the 2nd scheduled duration can be 3 seconds, and the 3rd scheduled duration can be 3 minutes; Increasing desired speed can be increase a shelves position.
Embodiment according to a second aspect of the present invention, also proposed the control device of a kind of conditioner, described conditioner comprises refrigeration system, indoor fan and outdoor fan, the control device of described conditioner comprises: detecting unit, for when receiving the instruction starting conditioner, detect the operational mode of described conditioner, and detect the exhaust pressure of compressor in described refrigeration system; Control unit, for the operational mode of the described exhaust pressure that detects according to described detecting unit and described conditioner, controls described indoor fan and/or described outdoor fan, controls with the pressure to described refrigeration system.
The control device of conditioner according to an embodiment of the invention; owing to compressor is in startup moment; the rise in temperature of vaporizer does not have the fast of pressure increase; if system pressure is adjusted by the temperature therefore according to vaporizer; when system then can be caused to have little time to make the protection act reducing pressure; system just directly enters high voltage protective, and then can affect the comfort of user. And by the operational mode of detection conditioner and the exhaust pressure of compressor; with the operational mode of the exhaust pressure according to compressor and conditioner; indoor fan and/or outdoor fan are controlled; make when detecting that the exhaust pressure of compressor is abnormal; can in time by indoor fan and/or outdoor fan be controlled; reach the object of Indirect method system pressure; and then can guarantee to be adjusted to by system pressure in non-stop-machine pressure range; ensure smooth startup and the reliability service of air-conditioning system, thus improve the comfort of user.
The control device of conditioner according to the abovementioned embodiments of the present invention, it is also possible to there is following technology feature:
According to one embodiment of present invention, described control unit specifically for: when described conditioner carries out work in a chiller mode,
If described detecting unit detects that described exhaust pressure is less than or equals the first force value, then control described outdoor fan and carry out work with the wind speed set; If described detecting unit detects that described exhaust pressure is greater than described first force value, and is less than the 2nd force value, then control described outdoor fan and carry out work to be greater than the wind speed of the first preset value; If described detecting unit detects that described exhaust pressure is more than or equal to described 2nd force value, then control described conditioner out of service.
The control device of conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work in a chiller mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, control outdoor fan carries out work to be greater than the wind speed of the first preset value, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the first preset value can be the superelevation wind speed of outdoor fan.
According to one embodiment of present invention, also comprise: statistic unit, for controlling described outdoor fan with after being greater than the wind speed of the first preset value and carrying out work at described control unit, if described detecting unit detects that described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting; Described control unit also for, described lasting time reach the first scheduled duration time, control described outdoor fan and carry out work with the wind speed of described setting.
The control device of conditioner according to an embodiment of the invention, at control outdoor fan with after being greater than the wind speed of the first preset value and carrying out work, if when exhaust pressure compressor being detected reaches the first scheduled duration when being less than or equal the first force value lasting, control outdoor fan carries out work with the wind speed set, it is possible to avoid the force value of refrigeration system long-time lower and affect the refrigeration of conditioner. Wherein, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, described control unit specifically for: when described conditioner carries out work with heating mode,
If described detecting unit detects that described exhaust pressure is less than or equals the first force value, then control described indoor fan and described outdoor fan carries out work with the wind speed set respectively; If described detecting unit detects that described exhaust pressure is greater than described first force value, and is less than the 2nd force value, then control described indoor fan and carry out work to be greater than the wind speed of the 2nd preset value, and control described outdoor fan and reduce desired speed; If described detecting unit detects that described exhaust pressure is more than or equal to described 2nd force value, then control described conditioner out of service.
The control device of conditioner according to an embodiment of the invention, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work with heating mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, watch-keeping cubicle inner blower carries out work to be greater than the wind speed of the 2nd preset value, and control outdoor fan and reduce desired speed, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the 2nd preset value can be the high wind speed of indoor fan; It can be that one grade of operation falls in control outdoor fan that control outdoor fan reduces desired speed.
According to one embodiment of present invention, described control unit concrete also for: carry out work at the described indoor fan of control to be greater than the wind speed of the 2nd preset value, and control after described outdoor fan reduces desired speed, and through the 2nd scheduled duration,
If described detecting unit detects that described exhaust pressure is still greater than described first force value; and it is less than described 2nd force value; then control described outdoor fan and again reduce desired speed; until described outdoor fan is shut down; if and described exhaust pressure is less than or equals described first force value; then add up long when described exhaust pressure is less than or equals described first force value lasting; and described lasting time reach the 3rd scheduled duration time; control described outdoor fan and increase desired speed, until the rotating speed of described outdoor fan reaches the wind speed of described setting.
The control device of conditioner according to an embodiment of the invention, by carrying out work at watch-keeping cubicle inner blower to be greater than the wind speed of the 2nd preset value, and after controlling outdoor fan reduction desired speed, and through the 2nd scheduled duration, if the exhaust pressure of compressor is still greater than the first force value, and be less than the 2nd force value, then control outdoor fan and again reduce desired speed, it is possible to continue to reduce the force value of refrigeration system; And when reaching the 3rd scheduled duration when the exhaust pressure of compressor is less than or equals the first force value lasting, control outdoor fan increases desired speed, it is possible to avoid the force value of refrigeration system long-time lower and affect the heating effect of conditioner. Wherein, the 2nd scheduled duration can be 3 seconds, and the 3rd scheduled duration can be 3 minutes; Increasing desired speed can be increase a shelves position.
Embodiment according to a third aspect of the present invention, also proposed a kind of conditioner, comprising: refrigeration system, and described refrigeration system comprises compressor; Indoor fan and outdoor fan; And the control device such as the conditioner described in above-mentioned arbitrary embodiment, the detecting unit in described control device detects the exhaust pressure of described compressor by the pressure switch on the vapor pipe being connected to described compressor.
According to one embodiment of present invention, described pressure switch comprises:
Cavity;
Pipe connecting, one end of described pipe connecting is connected with described cavity, and the other end of described pipe connecting is connected to the vapor pipe of described compressor;
Spring piece, is arranged in described cavity, and deformation can occur described spring piece under the effect entering the gaseous tension in described cavity by described pipe connecting;
First determines contact, the 2nd determines contact and is arranged on described first to determine contact and described 2nd movable contact determining between contact;
Support bar, one end of described support bar is arranged on described spring piece, and the other end of described support bar is connected with described movable contact, and described support bar can drive described movable contact to move, when deformation do not occur described spring piece, described movable contact is determined contact with described first and is contacted;
Wherein, described movable contact determine with described first contact contact time, described exhaust pressure is less than or equals described first force value; Described movable contact determine with described first contact determine with the described 2nd contact all do not contact time, described exhaust pressure is greater than described first force value and is less than described 2nd force value; Described movable contact determine with the described 2nd contact contact time, described exhaust pressure is more than or equal to described 2nd force value.
Specifically, when the exhaust pressure of compressor increases, the refrigerant of gaseous state can enter in cavity by pipe connecting, and then can impel Spring deformation, and then spring piece drives support bar motion, makes movable contact leave first and determines contact, when pressure is bigger, movable contact can touch the 2nd and determine contact. In the testing process of reality, it is possible to movable contact energising, then determine contact and determine contact by detecting first with the 2nd and whether have electric current to flow through to determine that movable contact and which are determined contact and contact.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage from accompanying drawing below combining to the description of embodiment becoming obviously and it should be readily understood that wherein:
Fig. 1 shows the structural representation of refrigeration system according to an embodiment of the invention;
Fig. 2 shows the structural representation of pressure switch according to an embodiment of the invention;
Fig. 3 shows the block diagram of the control method of conditioner according to first embodiment of the invention;
Fig. 4 shows the schematic block diagram of the control device of conditioner according to an embodiment of the invention;
Fig. 5 shows the block diagram of the control method of the conditioner of the 2nd according to the present invention embodiment;
Fig. 6 shows the block diagram of the control method of the conditioner of the 3rd according to the present invention embodiment.
Embodiment
In order to more clearly understand above-mentioned purpose, the feature and advantage of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail. It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt other to be different from other modes described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.
Fig. 1 shows the structural representation of refrigeration system according to an embodiment of the invention.
As shown in Figure 1, refrigeration system according to an embodiment of the invention, comprising: compressor 1, vapor pipe 2, pressure switch 3, four-way valve 4, condenser 5, throttling set 6, vaporizer 7, muffler 8. Wherein, the structure of pressure switch 3 as shown in Figure 2, comprising:
Cavity 31;
Pipe connecting 32, one end of described pipe connecting 32 is connected with described cavity 31, and the other end of described pipe connecting 32 is connected to described vapor pipe 2;
Spring piece 33, is arranged in described cavity 31, and described spring piece 33, under the effect entering the gaseous tension in described cavity 31 by described pipe connecting 32, deformation can occur;
First determines contact 35, the 2nd determines contact 37 and is arranged on described first to determine contact 35 and the described 2nd movable contact 36 determining between contact 37;
Support bar 34, one end of described support bar 34 is arranged on described spring piece 33, the other end of described support bar 34 is connected with described movable contact 36, described support bar 34 can drive described movable contact 36 to move, when deformation do not occur described spring piece 33, described movable contact 36 is determined contact 35 with described first and is contacted;
Wherein, described movable contact 36 determine with described first contact 35 contact time, described exhaust pressure is less than or equals the first force value; Described movable contact 36 determine with described first contact 35 determine with the described 2nd contact 36 all do not contact time, namely the displacement amount S of support bar 34 is greater than 0 and when being less than N (N can be set to 1mm), and described exhaust pressure is greater than the first force value and is less than the 2nd force value; Described movable contact 36 determine with the described 2nd contact 37 contact time, when namely the displacement amount S of support bar 34 is greater than N, described exhaust pressure is more than or equal to described 2nd force value.
Specifically, when the exhaust pressure of compressor increases, the refrigerant of gaseous state can enter in cavity 31 by pipe connecting 32, and then spring piece 33 can be impelled to be out of shape, and then spring piece 33 drives support bar 34 to move, making movable contact 36 leave first and determine contact 35, when pressure is bigger, movable contact 36 can touch the 2nd and determine contact 37. In the testing process of reality, it is energized to movable contact 36, then determine contact 35 and determine contact 37 by detecting first with the 2nd and whether have electric current to flow through to determine that movable contact and which are determined contact and contact, specifically it is energized to movable contact 36 by the wire 38 shown in Fig. 2, wire 39 is connected to the 2nd and determines contact 37, and wire 310 is connected to first and determines contact 35.
The scheme controlled by the conditioner with the refrigeration system shown in Fig. 1 is described below in detail.
Fig. 3 shows the block diagram of the control method of conditioner according to first embodiment of the invention.
As shown in Figure 3, the control method of conditioner according to first embodiment of the invention, comprising:
Step 302, when receiving the instruction starting conditioner, detects the operational mode of described conditioner, and detects the exhaust pressure of compressor in described refrigeration system;
Step 304, according to the operational mode of described exhaust pressure and described conditioner, controls described indoor fan and/or described outdoor fan, controls with the pressure to described refrigeration system.
Owing to compressor is in startup moment; the rise in temperature of vaporizer does not have the fast of pressure increase; if system pressure is adjusted by the temperature therefore according to vaporizer; when system then can be caused to have little time to make the protection act reducing pressure; system just directly enters high voltage protective, and then can affect the comfort of user. And by the operational mode of detection conditioner and the exhaust pressure of compressor; with the operational mode of the exhaust pressure according to compressor and conditioner; indoor fan and/or outdoor fan are controlled; make when detecting that the exhaust pressure of compressor is abnormal; can in time by indoor fan and/or outdoor fan be controlled; reach the object of Indirect method system pressure; and then can guarantee to be adjusted to by system pressure in non-stop-machine pressure range; ensure smooth startup and the reliability service of air-conditioning system, thus improve the comfort of user.
The control method of conditioner according to the abovementioned embodiments of the present invention, it is also possible to there is following technology feature:
According to one embodiment of present invention, according to the operational mode of described exhaust pressure and described conditioner, to the step that described indoor fan and/or described outdoor fan control, specifically comprise: if described conditioner carries out work in a chiller mode, then
When detecting that described exhaust pressure is less than or equals the first force value, control described outdoor fan and carry out work with the wind speed set; Detecting that described exhaust pressure is greater than described first force value, and when being less than the 2nd force value, controlling described outdoor fan and carry out work to be greater than the wind speed of the first preset value; When detecting that described exhaust pressure is more than or equal to described 2nd force value, control described conditioner out of service.
Wherein, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work in a chiller mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, control outdoor fan carries out work to be greater than the wind speed of the first preset value, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the first preset value can be the superelevation wind speed of outdoor fan.
According to one embodiment of present invention, after the described outdoor fan of control carries out the step of work to be greater than the wind speed of the first preset value, also comprise: described exhaust pressure is less than or equals described first force value if detecting, then add up long when described exhaust pressure is less than or equals described first force value lasting; Described lasting time reach the first scheduled duration time, control described outdoor fan and carry out work with the wind speed of described setting.
Specifically, at control outdoor fan with after being greater than the wind speed of the first preset value and carrying out work, if when exhaust pressure compressor being detected reaches the first scheduled duration when being less than or equal the first force value lasting, control outdoor fan carries out work with the wind speed set, it is possible to avoid the force value of refrigeration system long-time lower and affect the refrigeration of conditioner. Wherein, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, according to the operational mode of described exhaust pressure and described conditioner, to the step that described indoor fan and/or described outdoor fan control, specifically comprise: if described conditioner carries out work with heating mode, then
When detecting that described exhaust pressure is less than or equals the first force value, control described indoor fan and described outdoor fan carries out work with the wind speed set respectively; Detecting that described exhaust pressure is greater than described first force value, and when being less than the 2nd force value, controlling described indoor fan and carry out work to be greater than the wind speed of the 2nd preset value, and controlling described outdoor fan and reduce desired speed; When detecting that described exhaust pressure is more than or equal to described 2nd force value, control described conditioner out of service.
Wherein, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work with heating mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, watch-keeping cubicle inner blower carries out work to be greater than the wind speed of the 2nd preset value, and control outdoor fan and reduce desired speed, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the 2nd preset value can be the high wind speed of indoor fan; It can be that one grade of operation falls in control outdoor fan that control outdoor fan reduces desired speed.
According to one embodiment of present invention, carry out work at the described indoor fan of control to be greater than the wind speed of the 2nd preset value, and after controlling the step that described outdoor fan reduces desired speed, and through the 2nd scheduled duration, also comprise:
If described exhaust pressure is still greater than described first force value, and it is less than described 2nd force value, then controls described outdoor fan and again reduce desired speed, until described outdoor fan is shut down; If described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting, and described lasting time reach the 3rd scheduled duration time, control described outdoor fan and increase desired speed, until the rotating speed of described outdoor fan reaches the wind speed of described setting.
By carrying out work at watch-keeping cubicle inner blower to be greater than the wind speed of the 2nd preset value, and after controlling outdoor fan reduction desired speed, and through the 2nd scheduled duration, if the exhaust pressure of compressor is still greater than the first force value, and it is less than the 2nd force value, then control outdoor fan and again reduce desired speed, it is possible to continue to reduce the force value of refrigeration system; And when reaching the 3rd scheduled duration when the exhaust pressure of compressor is less than or equals the first force value lasting, control outdoor fan increases desired speed, it is possible to avoid the force value of refrigeration system long-time lower and affect the heating effect of conditioner. Wherein, the 2nd scheduled duration can be 3 seconds, and the 3rd scheduled duration can be 3 minutes; Increasing desired speed can be increase a shelves position.
According to one embodiment of present invention, described exhaust pressure is detected by the pressure switch shown in Fig. 2.
Fig. 4 shows the schematic block diagram of the control device of conditioner according to an embodiment of the invention.
As shown in Figure 4, the control device 400 of conditioner according to an embodiment of the invention, comprising: detecting unit 402 and control unit 404.
Wherein, detecting unit 402, for when receiving the instruction starting conditioner, detecting the operational mode of described conditioner, and detect the exhaust pressure of compressor in described refrigeration system; Control unit 404, for the operational mode of the described exhaust pressure that detects according to described detecting unit 402 and described conditioner, controls described indoor fan and/or described outdoor fan, controls with the pressure to described refrigeration system.
Owing to compressor is in startup moment; the rise in temperature of vaporizer does not have the fast of pressure increase; if system pressure is adjusted by the temperature therefore according to vaporizer; when system then can be caused to have little time to make the protection act reducing pressure; system just directly enters high voltage protective, and then can affect the comfort of user. And by the operational mode of detection conditioner and the exhaust pressure of compressor; with the operational mode of the exhaust pressure according to compressor and conditioner; indoor fan and/or outdoor fan are controlled; make when detecting that the exhaust pressure of compressor is abnormal; can in time by indoor fan and/or outdoor fan be controlled; reach the object of Indirect method system pressure; and then can guarantee to be adjusted to by system pressure in non-stop-machine pressure range; ensure smooth startup and the reliability service of air-conditioning system, thus improve the comfort of user.
The control device 400 of conditioner according to the abovementioned embodiments of the present invention, it is also possible to there is following technology feature:
According to one embodiment of present invention, described control unit 404 specifically for: when described conditioner carries out work in a chiller mode,
If described detecting unit 402 detects that described exhaust pressure is less than or equals the first force value, then control described outdoor fan and carry out work with the wind speed set; If described detecting unit 402 detects that described exhaust pressure is greater than described first force value, and is less than the 2nd force value, then control described outdoor fan and carry out work to be greater than the wind speed of the first preset value; If described detecting unit 402 detects that described exhaust pressure is more than or equal to described 2nd force value, then control described conditioner out of service.
Wherein, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work in a chiller mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, control outdoor fan carries out work to be greater than the wind speed of the first preset value, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the first preset value can be the superelevation wind speed of outdoor fan.
According to one embodiment of present invention, also comprise: statistic unit 406, for controlling described outdoor fan with after being greater than the wind speed of the first preset value and carrying out work at described control unit 404, if described detecting unit 402 detects that described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting; Described control unit 404 also for, described lasting time reach the first scheduled duration time, control described outdoor fan and carry out work with the wind speed of described setting.
Specifically, at control outdoor fan with after being greater than the wind speed of the first preset value and carrying out work, if when exhaust pressure compressor being detected reaches the first scheduled duration when being less than or equal the first force value lasting, control outdoor fan carries out work with the wind speed set, it is possible to avoid the force value of refrigeration system long-time lower and affect the refrigeration of conditioner. Wherein, the first scheduled duration can be 3 minutes.
According to one embodiment of present invention, described control unit 404 specifically for: when described conditioner carries out work with heating mode,
If described detecting unit 402 detects that described exhaust pressure is less than or equals the first force value, then control described indoor fan and described outdoor fan carries out work with the wind speed set respectively; If described detecting unit 402 detects that described exhaust pressure is greater than described first force value, and is less than the 2nd force value, then control described indoor fan and carry out work to be greater than the wind speed of the 2nd preset value, and control described outdoor fan and reduce desired speed; If described detecting unit 402 detects that described exhaust pressure is more than or equal to described 2nd force value, then control described conditioner out of service.
Wherein, the wind speed of setting can be the wind speed of acquiescence, acquiescence wind speed when namely conditioner carries out work with heating mode; When detecting that exhaust pressure is greater than the first force value and is less than the 2nd force value, watch-keeping cubicle inner blower carries out work to be greater than the wind speed of the 2nd preset value, and control outdoor fan and reduce desired speed, can suitably reduce the exhaust pressure of compressor, avoid system pressure too high and cause the problem of job insecurity; And by when detecting that exhaust pressure is more than or equal to the 2nd force value, control conditioner is out of service, it is possible to avoid still running when the exhaust pressure of compressor is excessive and cause the problem of system instability. Wherein, the wind speed being greater than the 2nd preset value can be the high wind speed of indoor fan; It can be that one grade of operation falls in control outdoor fan that control outdoor fan reduces desired speed.
According to one embodiment of present invention, described control unit 404 concrete also for: carry out work at the described indoor fan of control to be greater than the wind speed of the 2nd preset value, and control after described outdoor fan reduces desired speed, and through the 2nd scheduled duration,
If described detecting unit 402 detects that described exhaust pressure is still greater than described first force value; and it is less than described 2nd force value; then control described outdoor fan and again reduce desired speed; until described outdoor fan is shut down; if and described exhaust pressure is less than or equals described first force value; then add up long when described exhaust pressure is less than or equals described first force value lasting; and described lasting time reach the 3rd scheduled duration time; control described outdoor fan and increase desired speed, until the rotating speed of described outdoor fan reaches the wind speed of described setting.
By carrying out work at watch-keeping cubicle inner blower to be greater than the wind speed of the 2nd preset value, and after controlling outdoor fan reduction desired speed, and through the 2nd scheduled duration, if the exhaust pressure of compressor is still greater than the first force value, and it is less than the 2nd force value, then control outdoor fan and again reduce desired speed, it is possible to continue to reduce the force value of refrigeration system; And when reaching the 3rd scheduled duration when the exhaust pressure of compressor is less than or equals the first force value lasting, control outdoor fan increases desired speed, it is possible to avoid the force value of refrigeration system long-time lower and affect the heating effect of conditioner. Wherein, the 2nd scheduled duration can be 3 seconds, and the 3rd scheduled duration can be 3 minutes; Increasing desired speed can be increase a shelves position.
According to one embodiment of present invention, described detecting unit 402 specifically for: detect described exhaust pressure by the pressure switch shown in Fig. 2.
The invention allows for a kind of conditioner (not shown), comprising: the control device 400 of conditioner as shown in Figure 4.
Below in conjunction with Fig. 5 and Fig. 6, by 4.0Mpa of above-mentioned first force value, the 2nd force value the technical scheme of the present invention is described in detail for 4.4Mpa.
Fig. 5 shows the block diagram of the control method of the conditioner of the 2nd according to the present invention embodiment.
As shown in Figure 5, according to the control method of the conditioner of the 2nd of the present invention the embodiment, comprising:
Step 502, conditioner detects starting-up signal in cooling mode.
Step 504, the movable contact of detecting pressure switch, with determine contact whether conducting, is divided into three kinds of situations, selects execution step 506, step 518 and step 512 according to different situations.
Step 506, movable contact is determined contact with first and is contacted.
Step 508, it is determined that system high pressure��4.0MPa.
Step 510, control outdoor fan runs according to the wind speed of setting.
Step 512, movable contact is determined contact with the 2nd and is contacted.
Step 514, it is determined that system high pressure >=4.4MPa.
Step 516, control air-conditioning system is out of service.
Step 518, movable contact is determined contact and is determined contact with the 2nd and all do not contact with first.
Step 520, it is determined that 4.0Mpa < system high pressure < 4.4MPa.
Step 522, outdoor fan runs with superpower wind speed, afterwards according to movable contact and the contact situation determining contact, selects to perform step 524 and step 528.
Step 524, movable contact is determined contact and is determined contact with the 2nd and all do not contact with first.
Step 526, outdoor fan continues to run with superpower wind speed.
Step 528, movable contact is determined to reach when contact contacts 3 minutes with first.
Step 530, outdoor fan runs according to wind speed setting.
Fig. 6 shows the block diagram of the control method of the conditioner of the 3rd according to the present invention embodiment.
As shown in Figure 6, according to the control method of the conditioner of the 3rd of the present invention the embodiment, comprising:
Step 602, conditioner detects starting-up signal in a heating mode.
Step 604, the movable contact of detecting pressure switch, with determine contact whether conducting, is divided into three kinds of situations, selects execution step 606, step 618 and step 612 according to different situations.
Step 606, movable contact is determined contact with first and is contacted.
Step 608, it is determined that system high pressure��4.0MPa.
Step 610, watch-keeping cubicle inner blower runs according to the wind speed of setting, and outdoor fan can also run according to the wind speed of setting.
Step 612, movable contact is determined contact with the 2nd and is contacted.
Step 614, it is determined that system high pressure >=4.4MPa.
Step 616, control air-conditioning system is out of service.
Step 618, movable contact is determined contact and is determined contact with the 2nd and all do not contact with first.
Step 620, it is determined that 4.0Mpa < system high pressure < 4.4MPa.
Step 622, indoor fan runs with high wind speed, and one grade of operation falls in outdoor fan, until outdoor fan stops.
Step 624, detects movable contact and determines whether contact contacts with first after judging 3s, if performing step 626; Otherwise, return step 622.
Step 626, reaches 3 minutes duration of contact.
Step 628, indoor fan high wind speed runs, and outdoor fan rises one grade of operation, until outdoor fan reaches wind speed setting.
More than it is described with reference to the accompanying drawings the technical scheme of the present invention; the present invention proposes the control program of a kind of new conditioner; can when detecting that Compressor Discharge Pressure is abnormal; guarantee to be adjusted to by system pressure in non-stop-machine pressure range by indoor fan and/or outdoor fan carry out control in time; ensure smooth startup and the reliability service of air-conditioning system, thus improve the comfort of user.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the control method of a conditioner, it is characterised in that, described conditioner comprises refrigeration system, indoor fan and outdoor fan, and the control method of described conditioner comprises:
When receiving the instruction starting conditioner, detect the operational mode of described conditioner, and detect the exhaust pressure of compressor in described refrigeration system;
According to the operational mode of described exhaust pressure and described conditioner, described indoor fan and/or described outdoor fan are controlled, controls with the pressure to described refrigeration system.
2. the control method of conditioner according to claim 1, it is characterised in that, according to the operational mode of described exhaust pressure and described conditioner, to the step that described indoor fan and/or described outdoor fan control, specifically comprise:
If described conditioner carries out work in a chiller mode, then
When detecting that described exhaust pressure is less than or equals the first force value, control described outdoor fan and carry out work with the wind speed set;
Detecting that described exhaust pressure is greater than described first force value, and when being less than the 2nd force value, controlling described outdoor fan and carry out work to be greater than the wind speed of the first preset value;
When detecting that described exhaust pressure is more than or equal to described 2nd force value, control described conditioner out of service.
3. the control method of conditioner according to claim 2, it is characterised in that, after the described outdoor fan of control carries out the step of work to be greater than the wind speed of the first preset value, also comprise:
If detecting, described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting;
Described lasting time reach the first scheduled duration time, control described outdoor fan and carry out work with the wind speed of described setting.
4. the control method of conditioner according to claim 1, it is characterised in that, according to the operational mode of described exhaust pressure and described conditioner, to the step that described indoor fan and/or described outdoor fan control, specifically comprise:
If described conditioner carries out work with heating mode, then
When detecting that described exhaust pressure is less than or equals the first force value, control described indoor fan and described outdoor fan carries out work with the wind speed set respectively;
Detecting that described exhaust pressure is greater than described first force value, and when being less than the 2nd force value, controlling described indoor fan and carry out work to be greater than the wind speed of the 2nd preset value, and controlling described outdoor fan and reduce desired speed;
When detecting that described exhaust pressure is more than or equal to described 2nd force value, control described conditioner out of service.
5. the control method of conditioner according to claim 4, it is characterized in that, carry out work at the described indoor fan of control to be greater than the wind speed of the 2nd preset value, and after controlling the step that described outdoor fan reduces desired speed, and through the 2nd scheduled duration, also comprise:
If described exhaust pressure is still greater than described first force value, and it is less than described 2nd force value, then controls described outdoor fan and again reduce desired speed, until described outdoor fan is shut down;
If described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting, and described lasting time reach the 3rd scheduled duration time, control described outdoor fan and increase desired speed, until the rotating speed of described outdoor fan reaches the wind speed of described setting.
6. the control device of a conditioner, it is characterised in that, described conditioner comprises refrigeration system, indoor fan and outdoor fan, and the control device of described conditioner comprises:
Detecting unit, for when receiving the instruction starting conditioner, detecting the operational mode of described conditioner, and detect the exhaust pressure of compressor in described refrigeration system;
Control unit, for the operational mode of the described exhaust pressure that detects according to described detecting unit and described conditioner, controls described indoor fan and/or described outdoor fan, controls with the pressure to described refrigeration system.
7. the control device of conditioner according to claim 6, it is characterised in that, described control unit specifically for:
When described conditioner carries out work in a chiller mode,
If described detecting unit detects that described exhaust pressure is less than or equals the first force value, then control described outdoor fan and carry out work with the wind speed set;
If described detecting unit detects that described exhaust pressure is greater than described first force value, and is less than the 2nd force value, then control described outdoor fan and carry out work to be greater than the wind speed of the first preset value;
If described detecting unit detects that described exhaust pressure is more than or equal to described 2nd force value, then control described conditioner out of service.
8. the control device of conditioner according to claim 7, it is characterized in that, also comprise: statistic unit, for controlling described outdoor fan with after being greater than the wind speed of the first preset value and carrying out work at described control unit, if described detecting unit detects that described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting;
Described control unit also for, described lasting time reach the first scheduled duration time, control described outdoor fan and carry out work with the wind speed of described setting.
9. the control device of conditioner according to claim 6, it is characterised in that, described control unit specifically for:
When described conditioner carries out work with heating mode,
If described detecting unit detects that described exhaust pressure is less than or equals the first force value, then control described indoor fan and described outdoor fan carries out work with the wind speed set respectively;
If described detecting unit detects that described exhaust pressure is greater than described first force value, and is less than the 2nd force value, then control described indoor fan and carry out work to be greater than the wind speed of the 2nd preset value, and control described outdoor fan and reduce desired speed;
If described detecting unit detects that described exhaust pressure is more than or equal to described 2nd force value, then control described conditioner out of service.
10. the control device of conditioner according to claim 9, it is characterised in that, described control unit concrete also for:
Work is carried out to be greater than the wind speed of the 2nd preset value at the described indoor fan of control, and after controlling described outdoor fan reduction desired speed, and through the 2nd scheduled duration,
If described detecting unit detects that described exhaust pressure is still greater than described first force value, and it is less than described 2nd force value, then controls described outdoor fan and again reduce desired speed, until described outdoor fan is shut down, and
If described exhaust pressure is less than or equals described first force value, then add up long when described exhaust pressure is less than or equals described first force value lasting, and described lasting time reach the 3rd scheduled duration time, control described outdoor fan and increase desired speed, until the rotating speed of described outdoor fan reaches the wind speed of described setting.
11. 1 kinds of conditioners, it is characterised in that, comprising:
Refrigeration system, described refrigeration system comprises compressor;
Indoor fan and outdoor fan; And
The control device of the conditioner as according to any one of claim 6 to 10, the detecting unit in described control device detects the exhaust pressure of described compressor by the pressure switch on the vapor pipe being connected to described compressor.
12. conditioners according to claim 11, it is characterised in that, described pressure switch comprises:
Cavity;
Pipe connecting, one end of described pipe connecting is connected with described cavity, and the other end of described pipe connecting is connected to described vapor pipe;
Spring piece, is arranged in described cavity, and deformation can occur described spring piece under the effect entering the gaseous tension in described cavity by described pipe connecting;
First determines contact, the 2nd determines contact and is arranged on described first to determine contact and described 2nd movable contact determining between contact;
Support bar, one end of described support bar is arranged on described spring piece, and the other end of described support bar is connected with described movable contact, and described support bar can drive described movable contact to move, when deformation do not occur described spring piece, described movable contact is determined contact with described first and is contacted;
Wherein, described movable contact determine with described first contact contact time, described exhaust pressure is less than or equals the first force value; Described movable contact determine with described first contact determine with the described 2nd contact all do not contact time, described exhaust pressure is greater than described first force value and is less than the 2nd force value; Described movable contact determine with the described 2nd contact contact time, described exhaust pressure is more than or equal to described 2nd force value.
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| CN201610050567.9A CN105650817B (en) | 2016-01-25 | 2016-01-25 | Control method, control device and the air conditioner of air conditioner |
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| CN201610050567.9A CN105650817B (en) | 2016-01-25 | 2016-01-25 | Control method, control device and the air conditioner of air conditioner |
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