CN105135609A - Method for controlling pressure of air conditioner system, controller and air conditioner system - Google Patents

Method for controlling pressure of air conditioner system, controller and air conditioner system Download PDF

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Publication number
CN105135609A
CN105135609A CN201510512479.1A CN201510512479A CN105135609A CN 105135609 A CN105135609 A CN 105135609A CN 201510512479 A CN201510512479 A CN 201510512479A CN 105135609 A CN105135609 A CN 105135609A
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China
Prior art keywords
parameter value
conditioning
air
preset
value
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Pending
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CN201510512479.1A
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Chinese (zh)
Inventor
何理
王立友
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
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 CN201510512479.1A priority Critical patent/CN105135609A/en
Publication of CN105135609A publication Critical patent/CN105135609A/en
Pending legal-status Critical Current

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Abstract

The invention provides a method for controlling the pressure of an air conditioner system, a controller and the air conditioner system with the controller. The method comprises the steps that the running mode of the air conditioner system is detected; when it is detected that the running mode of the air conditioner system is switched into the heating mode from the defrosting mode, the first parameter value of the air conditioner system is obtained; the obtained first parameter value is compared with the preset parameter value; and according to the comparison result, whether an outdoor draught fan is immediately controlled to be started or not is judged. According to the method, when it is detected that the running mode of the air conditioner system is switched into the heating mode from the defrosting mode, the first parameter value of the air conditioner system is obtained, and the obtained first parameter value is compared with the preset parameter value to control the starting time of the outdoor draught fan. On the basis that the material cost is not increased, the method effectively solves the problem that when the air conditioner quits the defrosting mode, the high-voltage fault happens in the moment when the heating mode runs.

Description

A kind of method, controller and air-conditioning system controlling air-conditioning system pressure
Technical field
The present invention relates to home appliance technical field, particularly relate to a kind of air-conditioning system of the method, controller and this controller of application that control air-conditioning system pressure.
Background technology
Air-conditioning system is when running heating mode; indoor fan is in heating mode; after there is defrost phenomenon in outdoor environment; generally defrost pattern can be carried out; indoor fan is in anti-air-cooled pattern, and after defrost pattern terminates, forward heating mode operation to, and at this moment indoor fan is also in anti-cool wind mode and does not run heating mode; cause the pressure of now air-conditioning system to rise instantaneously very fast, finally cause air-conditioning system appearance meeting high voltage protective phenomenon.
The general solution to anti-high voltage fault here has a lot at present, general by-pass collar or increase the methods such as relief valve, but said method be all be based upon increase air-conditioning system device basis on realize, add material cost.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of air-conditioning system of the method, controller and this controller of application that control air-conditioning system pressure, achieve and do not increasing on the basis of material cost, the pressure of air-conditioning system is controlled.
First aspect, the invention provides a kind of method controlling air-conditioning system pressure, comprising:
Detect the operational mode of air-conditioning system;
When detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, obtain the first parameter value of air-conditioning system;
The first parameter value obtained and preset parameter value are compared;
According to comparative result, judge whether that controlling outdoor fan immediately starts.Optionally, described according to comparative result, judge whether that controlling outdoor fan immediately starts, and comprising:
When the first parameter value obtained is less than or equal to preset parameter value, controls described outdoor fan immediately and start.
Optionally, described method also comprises:
When the operational mode of this air-conditioning system switches heating mode from defrost pattern, carry out timing;
Accordingly, described according to comparative result, judge whether that controlling outdoor fan immediately starts, and comprising:
When the first parameter value obtained is greater than preset parameter value, determine whether the running time of described heating mode arrives the first Preset Time;
When arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting.
Optionally, if described first parameter value be air-conditioning system off-premises station in temperature, then described preset parameter value is preset temperature value;
Accordingly, obtain the first parameter value of air-conditioning system, the first parameter value obtained and preset parameter value compared, comprising:
Obtain the temperature value being positioned at the temperature sensor Real-Time Monitoring of off-premises station, described temperature value and preset temperature value are compared;
Or
If described first parameter value is the force value of air-conditioning system, then described preset parameter value is preset pressure value;
Accordingly, obtain the first parameter value of air-conditioning system, the first parameter value obtained and preset parameter value compared, comprising:
Obtain the force value being positioned at the pressure sensor Real-Time Monitoring of off-premises station, described force value and preset pressure value are compared.
Second aspect, present invention also offers a kind of controller, comprising:
Detection module, for detecting the operational mode of air-conditioning system;
Acquisition module, for when detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, obtains the first parameter value of air-conditioning system;
Comparison module, for comparing the first parameter value obtained and preset parameter value;
Judge module, for according to comparative result, judges whether that controlling outdoor fan immediately starts.
Optionally, described judge module, for:
When the first parameter value obtained is less than or equal to preset parameter value, controls described outdoor fan immediately and start.
Optionally, described controller also comprises:
Timing module, for when the operational mode of this air-conditioning system switches heating mode from defrost pattern, carries out timing;
Accordingly, described judge module, during for being greater than preset parameter value at the first parameter value obtained, determines whether the running time of described heating mode arrives the first Preset Time;
When arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting.
Optionally, if described first parameter value be air-conditioning system off-premises station in temperature, then described preset parameter value is preset temperature value;
Accordingly, described acquisition module, for obtaining the temperature value of the temperature sensor Real-Time Monitoring being positioned at off-premises station;
Described comparison module, for comparing described temperature value and preset temperature value;
Or
If described first parameter value is the force value of air-conditioning system, then described preset parameter value is preset pressure value;
Accordingly, described acquisition module, for obtaining the force value of the pressure sensor Real-Time Monitoring being positioned at off-premises station;
Described comparison module, for comparing described force value and preset pressure value.
The third aspect, present invention also offers a kind of air-conditioning system, and comprise sensor and above-mentioned controller, described sensor is connected with described controller.
Optionally, described sensor comprises pressure sensor and/or temperature sensor.
As shown from the above technical solution, a kind of method controlling air-conditioning system pressure provided by the invention, the air-conditioning system of controller and this controller of application, the method is by when detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, by obtaining the first parameter value of air-conditioning system, and the first parameter value obtained and preset parameter value are compared, control the start-up time of outdoor fan, the method is not increasing on the basis of material cost, efficiently solve air-conditioning and exit defrost pattern, run the problem that high voltage fault appears in heating mode instantaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these figure.
Fig. 1 is a kind of schematic flow sheet controlling the method for air-conditioning system pressure that one embodiment of the invention provides;
A kind of schematic flow sheet controlling the method for air-conditioning system pressure that Fig. 2 provides for another embodiment of the present invention;
A kind of schematic flow sheet controlling the method for air-conditioning system pressure that Fig. 3 provides for another embodiment of the present invention;
The structural representation of the controller that Fig. 4 provides for one embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 shows a kind of schematic flow sheet controlling the method for air-conditioning system pressure that the embodiment of the present invention provides, and as shown in Figure 1, this comprises the method controlling air-conditioning system pressure and comprises the following steps:
101, the operational mode of air-conditioning system is detected;
102, when detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, the first parameter value of air-conditioning system is obtained;
103, the first parameter value obtained and preset parameter value are compared;
104, according to comparative result, judge whether that controlling outdoor fan immediately starts.
Said method is by when detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, by obtaining the first parameter value of air-conditioning system, and the first parameter value obtained and preset parameter value are compared, control the start-up time of outdoor fan, the method is not increasing on the basis of material cost, efficiently solve air-conditioning and exiting defrost pattern, run the problem that high voltage fault appears in heating mode instantaneously.
One of the present embodiment preferred embodiment in, according to comparative result described in above-mentioned steps 104, judge whether that controlling outdoor fan immediately starts, and comprising:
When the first parameter value obtained is less than or equal to preset parameter value, controls described outdoor fan immediately and start.
Said method is also comprising unshowned step in Fig. 1: when the operational mode of this air-conditioning system switches heating mode from defrost pattern, carry out timing.
Accordingly, according to comparative result described in above-mentioned steps 104, judge whether that controlling outdoor fan immediately starts, and can also comprise:
When the first parameter value obtained is greater than preset parameter value, determine whether the running time of described heating mode arrives the first Preset Time;
When arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting.
Above-mentioned first parameter value is the force value of temperature in the off-premises station of air-conditioning system or air-conditioning system.
Below by specific embodiment to the first parameter value be respectively air-conditioning system off-premises station in temperature and the situation of force value of air-conditioning system be described in detail.
Will be understood that, air-conditioning system is when heating mode, and outdoor environment just there will be defrost phenomenon, and can enter defrost pattern when meeting defrost condition, therefore the method controlling air-conditioning system pressure by the environment temperature in the off-premises station that obtains can comprise the following steps, as shown in Figure 2:
201, air-conditioning system operational mode is detected.
202, when air-conditioning system runs heating mode, judge whether to meet defrost condition, if meet, then perform step 203, otherwise, continue to perform step 202.
203, control air-conditioning system and run defrost pattern, namely control cross valve commutation and enter defrost pattern, indoor fan stops, and enters windproof cold pattern.
204, judge whether to need to exit defrost pattern, if exit, perform step 205, otherwise continue to perform step 204.
205, exit defrost pattern, control the cross valve switchover operation heating mode of described air-conditioning system, obtain the environment temperature in off-premises station simultaneously.
Will be understood that, above-mentioned steps 205 is especially by the environment temperature in temperature sensor Real-time Obtaining off-premises station.
206, the environment temperature in the off-premises station of described acquisition and default environment temperature are compared.
207, when the environment temperature in the off-premises station obtained is less than or equal to default environment temperature, controls described outdoor fan immediately and start, and continue to perform step 201.
In another attainable mode, after the environment obtained in off-premises station and default environment temperature compare by above-mentioned steps 206, also comprise step 208.
208, when the temperature value in the off-premises station obtained is greater than preset temperature value, determine whether the running time of described heating mode arrives the first Preset Time, and when arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting, and continue to perform step 201.
Said method passes through the environment temperature T obtained in the off-premises station of outdoor temperature sensor collection, by the environment temperature of acquisition and default environment temperature T ifrelatively, as T > T iftime, the moment of cross valve switchover operation heating mode, start accumulation timing immediately, after preset time period, (such as: N second after) is just opened outdoor fan and is run, and reaches the object reducing system high pressure pressure; As T≤T iftime, the moment of cross valve switchover operation heating mode opens outdoor fan immediately.When again judging to meet defrost condition, the moment performing defrost pattern and exit defrost pattern obtains the environment temperature T in off-premises station by temperature sensor immediately, and with default environment temperature T ifrelatively control the operation of outdoor fan, so repeatedly.
Below the method controlling air-conditioning system pressure above by the pressure of air-conditioning system obtained is described in detail.
Will be understood that, air-conditioning system is when heating mode, and outdoor environment just there will be defrost phenomenon, and can enter defrost pattern when meeting defrost condition, therefore the method that the pressure of air-conditioning system by obtaining controls air-conditioning system pressure can comprise the following steps, as shown in Figure 3:
301, air-conditioning system operational mode is detected.
302, when air-conditioning system runs heating mode, judge whether to meet defrost condition, if meet, then perform step 303, otherwise, continue to perform step 302.
303, control air-conditioning system and run defrost pattern, namely control cross valve commutation and enter defrost pattern, indoor fan stops, and enters windproof cold pattern.
304, judge whether to need to exit defrost pattern, if exit, perform step 305, otherwise continue to perform step 304.
305, exit defrost pattern, control the cross valve switchover operation heating mode of described air-conditioning system, obtain the pressure of air-conditioning system simultaneously.
Will be understood that, above-mentioned steps 305 is especially by the pressure of pressure sensor Real-time Obtaining air-conditioning system.
306, the pressure of the air-conditioning system of described acquisition and preset pressure are compared.
307, when the pressure of the air-conditioning system obtained is less than or equal to preset pressure, control described outdoor fan immediately and start, and continue to perform step 301.
In another attainable mode, after the pressure and preset pressure that obtain air-conditioning system compare by above-mentioned steps 306, also comprise step 308.
308, when the force value of the air-conditioning system obtained is greater than preset pressure value, determine whether the running time of described heating mode arrives the first Preset Time, and when arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting, and continue to perform step 301.
The pressure P of the air-conditioning system that said method is gathered by acquisition pressure sensor, and the pressure of the air-conditioning system that will obtain and preset pressure P ifrelatively, as P > P iftime, the moment of cross valve switchover operation heating mode, start accumulation timing immediately, after preset time period, (such as: N second after) is just opened outdoor fan and is run, and reaches the object reducing system high pressure pressure; As P≤P iftime, the moment of cross valve switchover operation heating mode opens outdoor fan immediately.When again judging to meet defrost condition, the moment performing defrost pattern and exit defrost pattern obtains the pressure P of air-conditioning system immediately by pressure sensor, and with preset pressure P ifrelatively control the operation of outdoor fan, so repeatedly.
All effectively can solve air-conditioning system by above two kinds of methods after heating mode, enter defrost pattern, and occur the phenomenon of high voltage fault in the moment of exiting defrost pattern, for the stable operation of air-conditioning system provides safety guarantee.
Fig. 4 shows the structural representation of a kind of controller that the embodiment of the present invention provides, and as shown in Figure 4, this controller comprises:
Detection module 41, for detecting the operational mode of air-conditioning system;
Acquisition module 42, for when detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, obtains the first parameter value of air-conditioning system;
Comparison module 43, for comparing the first parameter value obtained and preset parameter value;
Judge module 44, for according to comparative result, judges whether that controlling outdoor fan immediately starts.
One of the present embodiment preferred embodiment in, described judge module 44, for:
When the first parameter value obtained is less than or equal to preset parameter value, controls described outdoor fan immediately and start.
One of the present embodiment preferred embodiment in, described controller also comprises in Fig. 4 unshowned:
Timing module, for when the operational mode of this air-conditioning system switches heating mode from defrost pattern, carries out timing;
Accordingly, described judge module 44, during for being greater than preset parameter value at the first parameter value obtained, determines whether the running time of described heating mode arrives the first Preset Time;
When arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting.
One of the present embodiment preferred embodiment in, if described first parameter value be air-conditioning system off-premises station in temperature, then described preset parameter value is preset temperature value;
Accordingly, described acquisition module 42, for obtaining the temperature value of the temperature sensor Real-Time Monitoring being positioned at off-premises station;
Described comparison module 43, for comparing described temperature value and preset temperature value;
In another attainable mode, if described first parameter value is the force value of air-conditioning system, then described preset parameter value is preset pressure value;
Accordingly, described acquisition module 42, for obtaining the force value of the pressure sensor Real-Time Monitoring being positioned at off-premises station;
Described comparison module 43, for comparing described force value and preset pressure value.
The method of above-mentioned controller and above-mentioned control air-conditioning system pressure is one to one, and the present embodiment is no longer described in detail to the concrete implementation detail of above-mentioned controller.
The embodiment of the present invention additionally provides a kind of air-conditioning system, and comprise sensor and above-mentioned controller, described sensor is connected with described controller.
In a particular application, the sensor comprises pressure sensor and temperature sensor, also can only include pressure sensor or temperature sensor, concrete adopts two kinds of sensors, still a kind of sensor wherein, and the present embodiment does not limit it.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that; It still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. control a method for air-conditioning system pressure, it is characterized in that, comprising:
Detect the operational mode of air-conditioning system;
When detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, obtain the first parameter value of air-conditioning system;
The first parameter value obtained and preset parameter value are compared;
According to comparative result, judge whether that controlling outdoor fan immediately starts.
2. method according to claim 1, is characterized in that, described according to comparative result, judges whether that controlling outdoor fan immediately starts, and comprising:
When the first parameter value obtained is less than or equal to preset parameter value, controls described outdoor fan immediately and start.
3. method according to claim 1, is characterized in that, described method also comprises:
When the operational mode of this air-conditioning system switches heating mode from defrost pattern, carry out timing;
Accordingly, described according to comparative result, judge whether that controlling outdoor fan immediately starts, and comprising:
When the first parameter value obtained is greater than preset parameter value, determine whether the running time of described heating mode arrives the first Preset Time;
When arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting.
4. the method according to any one of claim 1-3, is characterized in that, if described first parameter value be air-conditioning system off-premises station in temperature value, then described preset parameter value is preset temperature value;
Accordingly, obtain the first parameter value of air-conditioning system, the first parameter value obtained and preset parameter value compared, comprising:
Obtain the temperature value being positioned at the temperature sensor Real-Time Monitoring of off-premises station, described temperature value and preset temperature value are compared;
Or
If described first parameter value is the force value of air-conditioning system, then described preset parameter value is preset pressure value;
Accordingly, obtain the first parameter value of air-conditioning system, the first parameter value obtained and preset parameter value compared, comprising:
Obtain the force value being positioned at the pressure sensor Real-Time Monitoring of off-premises station, described force value and preset pressure value are compared.
5. a controller, is characterized in that, comprising:
Detection module, for detecting the operational mode of air-conditioning system;
Acquisition module, for when detecting that the operational mode of air-conditioning system switches heating mode from defrost pattern, obtains the first parameter value of air-conditioning system;
Comparison module, for comparing the first parameter value obtained and preset parameter value;
Judge module, for according to comparative result, judges whether that controlling outdoor fan immediately starts.
6. controller according to claim 5, is characterized in that, described judge module, for:
When the first parameter value obtained is less than or equal to preset parameter value, controls described outdoor fan immediately and start.
7. controller according to claim 5, is characterized in that, described controller also comprises:
Timing module, for when the operational mode of this air-conditioning system switches heating mode from defrost pattern, carries out timing;
Accordingly, described judge module, during for being greater than preset parameter value at the first parameter value obtained, determines whether the running time of described heating mode arrives the first Preset Time;
When arriving the first Preset Time the running time of described heating mode, controlling described outdoor fan and starting.
8. the controller according to any one of claim 5-7, is characterized in that, if described first parameter value be air-conditioning system off-premises station in temperature, then described preset parameter value is preset temperature value;
Accordingly, described acquisition module, for obtaining the temperature value of the temperature sensor Real-Time Monitoring being positioned at off-premises station;
Described comparison module, for comparing described temperature value and preset temperature value;
Or
If described first parameter value is the force value of air-conditioning system, then described preset parameter value is preset pressure value;
Accordingly, described acquisition module, for obtaining the force value of the pressure sensor Real-Time Monitoring being positioned at off-premises station;
Described comparison module, for comparing described force value and preset pressure value.
9. an air-conditioning system, is characterized in that, comprise sensor and the controller according to any one of claim 5-8, described sensor is connected with described controller.
10. air-conditioning system according to claim 9, is characterized in that, described sensor comprises pressure sensor and/or temperature sensor.
CN201510512479.1A 2015-08-19 2015-08-19 Method for controlling pressure of air conditioner system, controller and air conditioner system Pending CN105135609A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009092353A (en) * 2007-10-12 2009-04-30 Hitachi Appliances Inc Air conditioner
JP2013053782A (en) * 2011-09-02 2013-03-21 Sharp Corp Air conditioner
CN103162384A (en) * 2013-03-04 2013-06-19 约克(无锡)空调冷冻设备有限公司 Draught fan control method of heat pump operation
CN203869255U (en) * 2014-01-23 2014-10-08 珠海格力电器股份有限公司 Defrosting control device
CN104406272A (en) * 2014-11-25 2015-03-11 珠海格力电器股份有限公司 Air-conditioning control method
CN104501350A (en) * 2014-11-17 2015-04-08 广东美的制冷设备有限公司 Air conditioner control method and air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009092353A (en) * 2007-10-12 2009-04-30 Hitachi Appliances Inc Air conditioner
JP2013053782A (en) * 2011-09-02 2013-03-21 Sharp Corp Air conditioner
CN103162384A (en) * 2013-03-04 2013-06-19 约克(无锡)空调冷冻设备有限公司 Draught fan control method of heat pump operation
CN203869255U (en) * 2014-01-23 2014-10-08 珠海格力电器股份有限公司 Defrosting control device
CN104501350A (en) * 2014-11-17 2015-04-08 广东美的制冷设备有限公司 Air conditioner control method and air conditioner
CN104406272A (en) * 2014-11-25 2015-03-11 珠海格力电器股份有限公司 Air-conditioning control method

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Application publication date: 20151209