CN107120809A

CN107120809A - A kind of control method of air-conditioning system, device and air-conditioning system

Info

Publication number: CN107120809A
Application number: CN201710443401.8A
Authority: CN
Inventors: 李立民; 滕天凤; 冯涛; 金孟孟; 曹朋; 黄文豪; 王楚; 朱世强
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-06-13
Filing date: 2017-06-13
Publication date: 2017-09-01
Anticipated expiration: 2037-06-13
Also published as: CN107120809B

Abstract

The invention discloses a kind of control method of air-conditioning system, device and air-conditioning system, this method includes：Obtain the indoor environment temperature and user's design temperature of the air-conditioning system；Determine the difference between the indoor environment temperature and user's design temperature；According to the operational mode of the air-conditioning system and the difference, the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system are controlled.The solution of the present invention, can overcome in the prior art energy-saving effect it is poor, in-convenience in use with the defect such as poor user experience, realize good energy-conserving effect, the beneficial effect that easy to use and Consumer's Experience is good.

Description

A kind of control method of air-conditioning system, device and air-conditioning system

Technical field

The invention belongs to air-conditioning technical field, and in particular to a kind of control method of air-conditioning system, device and air-conditioning system, More particularly to a kind of control method of energy-saving run multi-online air-conditioning system, device corresponding with this method and with the dress The multi-online air-conditioning system put.

Background technology

Multi-connected machine central air-conditioning is a type of family central air-conditioning, is commonly called as " one drags many ", refers to an outdoor unit Two or more indoor sets are connected by pipe arrangement, outside is changed using air-cooled heat exchange form, indoor using directly evaporation The primary coolant air-conditioning system of hot form.

Current multi-online air-conditioning system is in refrigerating operaton and heating operation, in order to reach certain refrigeration or heat effect Really, constant an evaporating pressure or condensing pressure can be controlled, but with indoor temperature and the temperature not disconnecting of client's setting When near, this evaporating pressure or condensing pressure will not cause compressor output bigger than normal with change, cause whole system energy-conservation effect Fruit is not very good.

In the prior art, exist energy-saving effect it is poor, in-convenience in use with the defect such as poor user experience.

The content of the invention

It is an object of the present invention to for drawbacks described above, there is provided a kind of control method of air-conditioning system, device and air-conditioning system System, when temperature and user's design temperature are constantly close indoors to solve multi-online air-conditioning system in the prior art, exchange heat pressure (for example：Evaporating pressure or condensing pressure) it will not change therewith, cause the problem of output energy-saving effect of compressor is poor, reach and carry Rise the effect of energy-conservation.

The present invention provides a kind of control method of air-conditioning system, including：Obtain the indoor environment temperature of the air-conditioning system With user's design temperature；Determine the difference between the indoor environment temperature and user's design temperature；According to the air-conditioning The operational mode of system and the difference, control the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system Degree.

Alternatively, the operational mode, including：Refrigeration mode or heating mode；The steaming of the control air-conditioning system Pressure or the corresponding saturation temperature of condensing pressure are sent out, including：When the operational mode is the refrigeration mode, the sky is controlled The corresponding saturation temperature of evaporating pressure of adjusting system；When the operational mode is the heating mode, the air-conditioning system is controlled The corresponding saturation temperature of condensing pressure of system.

Alternatively, in addition to：Obtain the outdoor environment temperature of the air-conditioning system；The steaming of the control air-conditioning system Pressure or the corresponding saturation temperature of condensing pressure are sent out, in addition to：When the operational mode is refrigeration mode, according to the outdoor Environment temperature and the difference, control the corresponding saturation temperature of evaporating pressure of the air-conditioning system；When the operational mode During for heating mode, according to the difference, the corresponding protection temperature of condensing pressure of the air-conditioning system is controlled.

Alternatively, in the evaporating pressure or the corresponding saturation temperature of condensing pressure of the control air-conditioning system, control The corresponding saturation temperature of evaporating pressure of the air-conditioning system, including：When the outdoor environment temperature is more than or equal to the first setting Upper threshold limit or during less than or equal to the first given threshold range lower limit, if the difference is more than the second given threshold scope The upper limit, then it is the first setting value to control the corresponding saturation temperature of the evaporating pressure；Or, when the outdoor environment temperature is more than During equal to the first given threshold range limit, if the difference is equal to the second given threshold range limit, control The corresponding saturation temperature increase of the evaporating pressure, and make the corresponding saturation temperature of the evaporating pressure no more than the second setting Value；Or, when the outdoor environment temperature be less than or equal to the first given threshold range lower limit when, if the difference be more than etc. In the second given threshold range lower limit and less than or equal to the second given threshold range limit, then the evaporating pressure is controlled Corresponding saturation temperature is the 3rd setting value；Or, when the outdoor environment temperature is more than under the first given threshold scope When limiting and being less than the first given threshold range limit, the preceding secondary control to the corresponding saturation temperature of the evaporating pressure is maintained System.

Alternatively, the corresponding saturation temperature increase of the evaporating pressure is controlled, including：Control the evaporating pressure corresponding Saturation temperature increases by the first design temperature；If the difference is decreased to be more than or equal to the second given threshold range lower limit and is less than Equal to the second given threshold range limit, then continue to control the corresponding saturation temperature increase described first of the evaporating pressure Design temperature.

Alternatively, the corresponding saturation temperature of the evaporating pressure is controlled to increase by the first design temperature, including：Control is described to steam The corresponding saturation temperature of hair pressure every when increase by first design temperature；And/or, control the corresponding saturation of the evaporating pressure Temperature delay increase by first design temperature.

Alternatively, wherein, it is that the first setting value, and/or control are described to control the corresponding saturation temperature of the evaporating pressure The corresponding saturation temperature of evaporating pressure is the 3rd setting value, is specifically included：The compressor of the air-conditioning system is adjusted by being adapted to Frequency, the rotating speed of outdoor fan, at least one of the aperture of restricting element, make the corresponding saturation temperature of the evaporating pressure For first setting value, and/or the corresponding saturation temperature of the evaporating pressure is set to be the 3rd setting value；And/or, control The corresponding saturation temperature increase of the evaporating pressure, is specifically included：By the frequency for being adapted to the compressor for reducing the air-conditioning system Rate, and at least one of the rotating speed for the outdoor fan for adjusting the air-conditioning system, aperture of restricting element are adapted to, make the steaming Send out the corresponding saturation temperature increase of pressure；And/or, the corresponding saturation temperature of the evaporating pressure is no more than the second setting value, Specifically include：At least one of frequency, rotating speed of outdoor fan by being adapted to the compressor for adjusting the air-conditioning system, make When the corresponding saturation temperature of the evaporating pressure reaches second setting value, the corresponding saturation temperature of the evaporating pressure is maintained Reach the state of the second setting value.

Alternatively, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, in addition to：Described in the control After the corresponding saturation temperature increase of evaporating pressure, and/or described the corresponding saturation temperature of the evaporating pressure is controlled to be the After three setting values, if the difference is recovered to more than the second given threshold range limit, the evaporating pressure is controlled Corresponding saturation temperature is recovered to first setting value；Wherein, the first given threshold scope, including：15 DEG C~20 DEG C； And/or, the second given threshold scope, including：0~3 DEG C.

Alternatively, in the evaporating pressure or the corresponding saturation temperature of condensing pressure of the control air-conditioning system, control The corresponding saturation temperature of condensing pressure of the air-conditioning system, including：If the difference is less than the 3rd given threshold range lower limit, The corresponding saturation temperature of condensing pressure for then controlling the air-conditioning system is the 4th setting value；Or, if the difference is equal to institute The 3rd given threshold range lower limit is stated, then controls the corresponding saturation temperature reduction of the condensing pressure, and make the condensing pressure Corresponding saturation temperature is not less than the 5th setting value.

Alternatively, the corresponding saturation temperature reduction of the condensing pressure is controlled, including：Control the condensing pressure corresponding Saturation temperature reduces the second design temperature；If the difference be decreased to be more than or equal to the 3rd given threshold range lower limit and During less than or equal to the 3rd given threshold range limit, then continue to control the corresponding saturation temperature reduction of the condensing pressure described the Two design temperatures.

Alternatively, the corresponding saturation temperature of the condensing pressure is controlled to reduce the second design temperature, including：Control described cold The solidifying corresponding saturation temperature of pressure every when reduce by second design temperature；And/or, control the corresponding saturation of the condensing pressure Temperature delay reduction by second design temperature.

Alternatively, wherein, control the air-conditioning system the corresponding saturation temperature of condensing pressure be the 4th setting value, specifically Including：By in the frequency of the compressor of the adaptation regulation air-conditioning system, the rotating speed of outdoor fan, the aperture of restricting element At least one, it is the 4th setting value to make the corresponding saturation temperature of the condensing pressure；And/or, control the condensing pressure correspondence Saturation temperature reduction, specifically include：By being adapted to the frequency for the compressor for raising the air-conditioning system, and it is described to be adapted to regulation At least one of the rotating speed of the outdoor fan of air-conditioning system, aperture of restricting element, the corresponding saturation temperature of the condensing pressure Degree reduction；And/or, the corresponding saturation temperature of the condensing pressure is not less than the 5th setting value, specifically include：Adjusted by being adapted to At least one of frequency, rotating speed of outdoor fan of the compressor of the air-conditioning system are saved, makes the condensing pressure corresponding When saturation temperature reaches five setting value, the corresponding saturation temperature of the condensing pressure is maintained to reach the 5th setting value State.

Alternatively, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, in addition to：Described in the control After the reduction of condensing pressure corresponding saturation temperature, if the difference is recovered to less than the 3rd given threshold range lower limit, The corresponding saturation temperature of the condensing pressure is then controlled to recover to the 4th setting value；Wherein, the 3rd given threshold model Enclose, including：- 2 DEG C~0.

Match with the above method, another aspect of the present invention provides a kind of control device of air-conditioning system, including：Obtain single Member, indoor environment temperature and user's design temperature for obtaining the air-conditioning system；Determining unit, for determining the interior Difference between environment temperature and user's design temperature；Control unit, for the operational mode according to the air-conditioning system And the difference, control the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system.

Alternatively, the operational mode, including：Refrigeration mode or heating mode；Described control unit controls the air-conditioning The corresponding saturation temperature of evaporating pressure or condensing pressure of system, is specifically included：When the operational mode is the refrigeration mode When, control the corresponding saturation temperature of evaporating pressure of the air-conditioning system；When the operational mode is the heating mode, control Make the corresponding saturation temperature of condensing pressure of the air-conditioning system.

Alternatively, in addition to：The acquiring unit, is additionally operable to obtain the outdoor environment temperature of the air-conditioning system；It is described Control unit controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system, specifically also includes：When described When operational mode is refrigeration mode, according to the outdoor environment temperature and the difference, the evaporation of the air-conditioning system is controlled The corresponding saturation temperature of pressure；When the operational mode is heating mode, according to the difference, the air-conditioning system is controlled The corresponding protection temperature of condensing pressure.

Alternatively, described control unit controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system In, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, is specifically included：When the outdoor environment temperature be more than etc. In the first given threshold range limit or during less than or equal to the first given threshold range lower limit, if the difference is more than described the Two given threshold range limits, then it is the first setting value to control the corresponding saturation temperature of the evaporating pressure；Or, when the room When external environment temperature is more than or equal to the first given threshold range limit, if the difference is equal to the second given threshold model Limit is placed, then controls the corresponding saturation temperature increase of the evaporating pressure, and make the corresponding saturation temperature of the evaporating pressure not More than the second setting value；Or, when the outdoor environment temperature is less than or equal to the first given threshold range lower limit, if institute Difference is stated more than or equal to the second given threshold range lower limit and less than or equal to the second given threshold range limit, then is controlled The corresponding saturation temperature of the evaporating pressure is the 3rd setting value；Or, when the outdoor environment temperature is set more than described first When determining lower threshold limit and being less than the first given threshold range limit, maintain to the corresponding saturation of the evaporating pressure The preceding secondary control of temperature.

Alternatively, described control unit controls the corresponding saturation temperature increase of the evaporating pressure, specifically includes：Control institute Stating the corresponding saturation temperature of evaporating pressure increases by the first design temperature；If the difference is decreased to be more than or equal to the second given threshold Range lower limit and less than or equal to the second given threshold range limit, then continue to control the corresponding saturation of the evaporating pressure Temperature increases by first design temperature.

Alternatively, described control unit controls the corresponding saturation temperature of the evaporating pressure to increase the first design temperature, tool Body includes：Control the corresponding saturation temperature of the evaporating pressure every when increase by first design temperature；And/or, control is described The corresponding saturation temperature delay increase of evaporating pressure first design temperature.

Alternatively, wherein, described control unit control the corresponding saturation temperature of the evaporating pressure for the first setting value, And/or control the corresponding saturation temperature of the evaporating pressure to be the 3rd setting value, specifically include：The air-conditioning is adjusted by being adapted to At least one of the frequency of the compressor of system, the rotating speed of outdoor fan, aperture of restricting element, make the evaporating pressure pair The saturation temperature answered is first setting value, and/or makes the corresponding saturation temperature of the evaporating pressure be the 3rd setting Value；And/or, described control unit controls the corresponding saturation temperature increase of the evaporating pressure, specifically includes：By being adapted to reduction The frequency of the compressor of the air-conditioning system, and it is adapted to the rotating speed of the outdoor fan for adjusting the air-conditioning system, restricting element At least one of aperture, makes the corresponding saturation temperature increase of the evaporating pressure；And/or, described control unit makes the steaming Send out the corresponding saturation temperature of pressure and be no more than the second setting value, specifically include：The compression of the air-conditioning system is adjusted by being adapted to At least one of the frequency of machine, rotating speed of outdoor fan, make the corresponding saturation temperature of the evaporating pressure reach described second During setting value, the corresponding saturation temperature of the evaporating pressure is maintained to reach the state of the second setting value.

Alternatively, described control unit controls the corresponding saturation temperature of evaporating pressure of the air-conditioning system, specifically also wraps Include：After the corresponding saturation temperature increase of the control evaporating pressure, and/or in the control evaporating pressure pair After the saturation temperature answered is the 3rd setting value, if the difference is recovered to more than the second given threshold range limit, The corresponding saturation temperature of the evaporating pressure is controlled to recover to first setting value；Wherein, the first given threshold scope, Including：15 DEG C~20 DEG C；And/or, the second given threshold scope, including：0~3 DEG C.

Alternatively, described control unit controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system In, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, is specifically included：If the difference is less than the 3rd setting threshold It is worth range lower limit, then the corresponding saturation temperature of condensing pressure for controlling the air-conditioning system is the 4th setting value；Or, if described Difference is equal to the 3rd given threshold range lower limit, then controls the corresponding saturation temperature reduction of the condensing pressure, and make institute State the corresponding saturation temperature of condensing pressure and be not less than the 5th setting value.

Alternatively, described control unit controls the corresponding saturation temperature reduction of the condensing pressure, specifically includes：Control institute Stating the corresponding saturation temperature of condensing pressure reduces the second design temperature；If the difference is decreased to be more than or equal to the 3rd setting Lower threshold limit and less than or equal to the 3rd given threshold range limit, then continue to control the corresponding saturation of the condensing pressure Temperature reduces by second design temperature.

Alternatively, described control unit controls the corresponding saturation temperature of the condensing pressure to reduce the second design temperature, tool Body includes：Control the corresponding saturation temperature of the condensing pressure every when reduce by second design temperature；And/or, control is described The corresponding saturation temperature delay reduction of condensing pressure second design temperature.

Alternatively, wherein, described control unit controls the corresponding saturation temperature of the condensing pressure of the air-conditioning system to be the Four setting values, are specifically included：By the frequency for the compressor for being adapted to the regulation air-conditioning system, the rotating speed of outdoor fan, throttle At least one of aperture of element, it is the 4th setting value to make the corresponding saturation temperature of the condensing pressure；And/or, the control Unit processed controls the corresponding saturation temperature reduction of the condensing pressure, specifically includes：The air-conditioning system is raised by being adapted to The frequency of compressor, and be adapted in the rotating speed of outdoor fan for adjusting the air-conditioning system, the aperture of restricting element at least it One, the corresponding saturation temperature reduction of the condensing pressure；And/or, described control unit makes the corresponding saturation of the condensing pressure Temperature is not less than the 5th setting value, specifically includes：By the frequency, the outdoor fan that are adapted to the compressor for adjusting the air-conditioning system At least one of rotating speed, when the corresponding saturation temperature of the condensing pressure is reached five setting value, remain described The corresponding saturation temperature of condensing pressure reaches the state of the 5th setting value.

Alternatively, described control unit controls the corresponding saturation temperature of condensing pressure of the air-conditioning system, specifically also wraps Include：After the corresponding saturation temperature reduction of the control condensing pressure, if the difference is recovered to less than the described 3rd Given threshold range lower limit, then control the corresponding saturation temperature of the condensing pressure to recover to the 4th setting value；Wherein, institute The 3rd given threshold scope is stated, including：- 2 DEG C~0.

Match with said apparatus, further aspect of the present invention provides a kind of air-conditioning system, including：Above-described air-conditioning system The control device of system.

The solution of the present invention, by monitoring the difference of indoor environment temperature and client's design temperature in real time, controls vapor pres- sure The change of power or condensing pressure so that the output of compressor reaches optimal energy-saving effect.

Further, the solution of the present invention, by determining outdoor environment temperature, indoor environment temperature and the setting of user temperature Degree, to control different evaporating pressures and condensing pressure, compressor is controlled on the premise of indoor refrigeration or heating effect is ensured Output and blower fan the effect that is optimal of output so that the effect that system is optimal.

Further, the solution of the present invention, by under different outdoor environment temperatures, according to indoor environment temperature and user The difference of design temperature, controls different evaporating pressures and condensing pressure, to better ensure that indoor refrigeration or heating effect Under the premise of system is reached optimal energy saving, and control accuracy is higher.

Thus, the solution of the present invention, passes through the difference according to indoor environment temperature and user's design temperature, control heat exchange pressure Power is (for example：Evaporating pressure during refrigeration, condensing pressure when heating etc.) change so that the output of compressor reaches optimal Energy-saving effect, when solving multi-online air-conditioning system in the prior art temperature and user's design temperature be constantly close indoors, heat exchange Pressure is (for example：Evaporating pressure or condensing pressure) it will not change therewith, cause compressor output bigger than normal, cause multi-gang air-conditioner system The problem of energy-saving effect of uniting is poor so that, overcome in the prior art energy-saving effect it is poor, in-convenience in use scarce with poor user experience Fall into, realize good energy-conserving effect, the beneficial effect that easy to use and Consumer's Experience is good.

Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification Obtain it is clear that or being understood by implementing the present invention.

Below by drawings and examples, technical scheme is described in further detail.

Brief description of the drawings

Fig. 1 is the schematic flow sheet of an embodiment of the control method of the air-conditioning system of the present invention；

Fig. 2 illustrates for the flow of the corresponding increased embodiment of saturation temperature of control evaporating pressure in the method for the present invention Figure；

Fig. 3 illustrates for the flow of an embodiment of the corresponding saturation temperature reduction of control condensing pressure in the method for the present invention Figure；

Fig. 4 is the structural representation of an embodiment of the control device of the air-conditioning system of the present invention；

The temperatur-timel curve schematic diagram of an embodiments of the Fig. 5 for air-conditioning system of the invention in refrigerating operaton；

The temperatur-timel curve schematic diagram of an embodiments of the Fig. 6 for air-conditioning system of the invention in heating operation.

With reference to accompanying drawing, reference is as follows in the embodiment of the present invention：

102- acquiring units；104- determining units；106- control units；108- setting units.

Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.

Embodiments in accordance with the present invention there is provided a kind of control method of air-conditioning system (for example：A kind of energy-saving run is multi-joint The control method of air conditioner system), the schematic flow sheet of an embodiment of the method for the present invention as shown in Figure 1.The air-conditioning system Control method can include：

At step S110, the indoor environment temperature and user's design temperature of the air-conditioning system are obtained.

At step S120, the difference between the indoor environment temperature and user's design temperature is determined.

At step S130, according to the operational mode of the air-conditioning system and the difference, the air-conditioning system is controlled Evaporating pressure or the corresponding saturation temperature of condensing pressure.

Thus, by the operational mode and indoor environment temperature according to air-conditioning system and the difference of client's design temperature, The change of evaporating pressure or the corresponding saturation temperature of condensing pressure is controlled, is conducive to lifting energy-saving effect and Consumer's Experience.

In an optional embodiment, in step S130, the operational mode can include：Refrigeration mode is heated Pattern.

Alternatively, the step S130 controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system Degree, can include：When the operational mode is the refrigeration mode, control the evaporating pressure of the air-conditioning system corresponding full And temperature；When the operational mode is the heating mode, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled Degree.

Thus, by the corresponding saturation temperature of control evaporating pressure in refrigeration, time control condensing pressure correspondence is being heated Saturation temperature, control mode is easy, and reliability is high.

In an optional embodiment, it can also include：Obtain the outdoor environment temperature of the air-conditioning system.

Alternatively, the step S130 controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system Degree, can also include：When the operational mode is refrigeration mode, according to the outdoor environment temperature and the difference, control Make the corresponding saturation temperature of evaporating pressure of the air-conditioning system.

For example：During refrigerating operaton, scope is (for example according to residing for outdoor environment temperature：The outdoor environment temperature is described Residing scope in first given threshold scope), and/or the difference residing for scope (for example：The difference is set described second Determine scope residing in threshold range), control the evaporating pressure of the air-conditioning system (for example：The steaming of evaporator during refrigerating operaton Send out pressure) corresponding saturation temperature, to realize that the refrigerated energy-saving to the air-conditioning controls (may refer to the example shown in Fig. 5)； And/or, during heating operation, scope is (for example according to residing for the difference：According to the difference in the 3rd given threshold scope institute The scope at place), control the condensing pressure of the air-conditioning system (for example：The condensing pressure of condenser during heating operation) it is corresponding full And temperature, Energy Saving Control (may refer to the example shown in Fig. 6) is heated to the air-conditioning to realize.

Wherein, evaporating pressure, be refrigerant temperature it is certain in the case of by liquid become gaseous state when maximum pressure.Condensation pressure Power, be refrigerant temperature it is certain in the case of by gaseous state become liquid when minimum pressure.Saturation temperature, refers at liquid and steam The temperature having when dynamic balance state is saturation state.

For example：It is different to control by determining outdoor environment temperature, indoor environment temperature and the design temperature of user Evaporating pressure, the effect for controlling the output of compressor and the output of blower fan to be optimal on the premise of indoor refrigeration is ensured Really so that the effect that system is optimal.

Alternatively, the step S130 controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system Degree, can also include：When the operational mode is heating mode, according to the difference, the condensation of the air-conditioning system is controlled The corresponding protection temperature of pressure.

Thus, by the difference according to indoor environment temperature and client's design temperature and outdoor environment temperature is combined, controlled The change of evaporating pressure, with refrigeration time-varying evaporating pressure；By the difference according to indoor environment temperature and client's design temperature, The change of condensing pressure is controlled, to heat time-varying condensing pressure, so that on the premise of indoor refrigeration or heating effect is ensured System is set to reach optimal energy saving (for example：So that the output of compressor reaches optimal energy-saving effect) so that refrigeration is made Thermal control more facilitates, and Consumer's Experience is good.

In an optional embodiment, it can also include：First given threshold scope, the second given threshold scope are set With the 3rd given threshold scope.

For example：First given threshold scope is 15 DEG C~20 DEG C, and the second given threshold scope is 0~3 DEG C, the 3rd setting threshold It is -2 DEG C~0 to be worth scope.

Thus, can be to evaporating pressure or the corresponding saturation of condensing pressure by setting corresponding given threshold scope The control of temperature is provided precisely and reliable foundation, is conducive to lifting energy-conservation control effect.

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, can be included：If the difference is less than described 3rd given threshold range lower limit is (for example：- 2 DEG C of indoor environment temperature ＜ user design temperature), then control the air-conditioning system The corresponding saturation temperature of condensing pressure for the 4th setting value (for example：The corresponding saturation temperature of condensing pressure of control system is D Value).

For example：During heating operation, indoor environment temperature constantly rises, if indoor environment temperature ＜ user design temperature -2 DEG C, then the corresponding saturation temperature of the condensing pressure of control system is D values.

Alternatively, the corresponding saturation temperature of condensing pressure for controlling the air-conditioning system is the 4th setting value, specifically can be with Including：By in the frequency of the compressor of the adaptation regulation air-conditioning system, the rotating speed of outdoor fan, the aperture of restricting element At least one, it is the 4th setting value to make the corresponding saturation temperature of the condensing pressure.

For example：It is the 4th setting value to control the corresponding saturation temperature of the condensing pressure, can be included：Adjust compressor and The output of blower fan, and the change of comprehensive throttle valve opening, so that the corresponding saturation temperature of the condensing pressure is the 4th setting Value.

For example：In a heating mode, the frequency of compressor is raised, the outdoor wind of reduction when outdoor fan is in high pressure conditions The rotating speed of machine, the rotating speed of outdoor fan is raised when outdoor fan is in low-pressure state, when the transition that condensing pressure reduces is interval Reduce the aperture of restricting element when becoming big, increase the aperture of restricting element when the transition region anaplasia that condensing pressure reduces is small.

Thus, can be with by being controlled under different indoor environment temperatures to the corresponding saturation temperature of condensing pressure The energy-saving effect of heating operation is lifted, and Consumer's Experience is able to significant increase.

In addition, under heating mode, the difference for being also not in indoor environment temperature and user's design temperature is more than setting value Situation (- 2 DEG C of indoor environment temperature ＞ user design temperature).

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, can be included：If the difference is equal to described 3rd given threshold range lower limit is (for example：Indoor environment temperature=- 2 DEG C of user's design temperature), then control the condensing pressure Corresponding saturation temperature reduction, and the corresponding saturation temperature of the condensing pressure is not less than the 5th setting value (for example：Control institute State that the corresponding saturation temperature of condensing pressure is minimum to be reduced to E values).

It is alternatively possible to control the corresponding saturation temperature reduction of condensing pressure in method of the invention with reference to shown in Fig. 3 The schematic flow sheet of one embodiment, further illustrates the detailed process for controlling the corresponding saturation temperature reduction of the condensing pressure.

Step S310, controls the corresponding saturation temperature of the condensing pressure to reduce the second design temperature, and continues to determine institute State difference scope residing in the 3rd given threshold scope.Wherein, the second design temperature can be with the first design temperature It is identical, can also be different.

More alternatively, the corresponding saturation temperature of the condensing pressure is controlled to reduce the second design temperature in step S310, can With including：Control the corresponding saturation temperature of the condensing pressure every when (for example：Every the 6th setting time) reduction described second Design temperature.

More alternatively, the corresponding saturation temperature of the condensing pressure is controlled to reduce the second design temperature in step S310, can With including：Control the corresponding saturation temperature delay of the condensing pressure (for example：Be delayed the 6th setting time) reduce described Second design temperature.

For example：If indoor environment temperature=- 2 DEG C of user's design temperature, the corresponding saturation temperature of the condensing pressure is controlled Degree reduces the second design temperature every the 6th setting time, and/or the 6th setting time that is delayed.For example：Control system Condensing pressure is (D-1) DEG C behind the reduction of every 20 minutes of the corresponding saturation temperature of condensing pressure 1 DEG C, i.e., 20 minute.When the condensation When the corresponding saturation temperature of pressure reduces by second design temperature, if lasting in the 5th setting time determine to obtain the difference When value is more than or equal to the 3rd given threshold range lower limit and is less than or equal to the 3rd given threshold range limit, then continue to control The corresponding saturation temperature of the condensing pressure is made every the 6th setting time, and/or the 6th setting time drop that is delayed Low second design temperature, and the corresponding saturation temperature of the condensing pressure is not less than the 5th setting value.For example：If continued It is determined that obtaining " -2 DEG C of user's design temperature≤indoor environment temperature≤user's design temperature ", then continue the condensation pressure of control system Control condensing pressure to be (D-2) DEG C behind the reduction of every 20 minutes of the corresponding saturation temperature of power 1 DEG C, i.e., 40 minute, and control is described cold The solidifying corresponding saturation temperature of pressure is not less than E values.

Thus, by every when or delay the corresponding saturation temperature of condensing pressure is reduced, can be in compressor operating Reduced again when stable, the reliability and stability for being conducive to lifting to control the corresponding saturation temperature of condensing pressure, and not Can be because frequently reduction brings unnecessary energy consumption.

Step S320, if being determined in the 5th setting time, obtaining the difference is decreased to be more than or equal to the 3rd setting Lower threshold limit and less than or equal to the 3rd given threshold range limit (for example：It is lasting to determine to obtain -2 DEG C of user's design temperature ≤ indoor environment temperature≤user's design temperature) when, then continue to control the corresponding saturation temperature reduction of the condensing pressure described Second design temperature.

In an optional specific example, the corresponding saturation temperature reduction of the condensing pressure is controlled, can specifically be included： By being adapted to the frequency for the compressor for raising the air-conditioning system, and it is adapted to turning for the outdoor fan for adjusting the air-conditioning system Speed, at least one of aperture of restricting element, the corresponding saturation temperature reduction of the condensing pressure.

For example：The corresponding saturation temperature reduction of the condensing pressure is controlled, can be included：The output of compressor is raised, is adjusted The aperture of outdoor fan rotating speed and choke valve is saved, is reduced with the corresponding saturation temperature of the condensing pressure.

In an optional specific example, the corresponding saturation temperature of the condensing pressure is not less than the 5th setting value, have Body can include：At least one of frequency, rotating speed of outdoor fan by being adapted to the compressor for adjusting the air-conditioning system, When the corresponding saturation temperature of the condensing pressure is reached five setting value, the corresponding saturation temperature of the condensing pressure is maintained Degree reaches the state of the 5th setting value.

For example：The corresponding saturation temperature of the condensing pressure is not less than the 5th setting value, can include：Control compressor And blower fan output, the corresponding saturation temperature of the condensing pressure is reached after the 5th setting value, maintain the condensing pressure pair The saturation temperature answered reaches the state of the 5th setting value.

Thus, by after being reduced to the corresponding saturation temperature of condensing pressure, continue to determine indoor environment temperature with Difference between user's design temperature, and the corresponding saturation temperature of the control condensing pressure is continued according to difference, on the one hand may be used To be reduced to the corresponding temperature of condensing pressure, on the other hand can also according to indoor environment temperature and user's design temperature it Between difference change in time adjustment reduction scheme so that the flexibility and reliability for heating Energy Saving Control are greatly promoted.

For example：During heating operation, indoor environment temperature constantly rises, when indoor environment temperature=user's design temperature -2 DEG C, then condensing pressure is (D- behind the reduction of every 20 minutes of the corresponding saturation temperature of the condensing pressure of control system 1 DEG C, i.e., 20 minute 1) DEG C, if lasting determine to obtain " -2 DEG C of user's design temperature≤indoor environment temperature≤user's design temperature ", continue to control Control condensing pressure behind the reduction of every 20 minutes of the corresponding saturation temperature of condensing pressure 1 DEG C, i.e., 40 of system processed minute for (D-2) DEG C, it is minimum to control condensing pressure to be E values.

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, can also be included：If the difference is equal to institute State the 3rd given threshold range lower limit (for example：Indoor environment temperature=- 2 DEG C of user's design temperature), it is described cold in the control After the corresponding saturation temperature reduction of solidifying pressure, if determining to obtain (for example in the 7th setting time：It is lasting to determine to obtain) institute Difference is stated to recover to less than the 3rd given threshold range lower limit (for example：It is determined that obtaining indoor environment temperature returns to ＜ use - 2 DEG C of family design temperature), then control the corresponding saturation temperature of the condensing pressure to recover to the 4th setting value (for example：Control The condensing pressure of system processed returns to D values).

For example：In the case where the difference is equal to the 3rd given threshold range lower limit, when the condensing pressure pair When the saturation temperature answered reduces by second design temperature or reduces by second design temperature again, however, it is determined that obtain described When difference is recovered to less than the 3rd given threshold range lower limit, control the corresponding protection temperature of the condensing pressure recover to 4th setting value.

For example：If it is determined that obtaining indoor environment temperature returns to -2 DEG C of ＜ user's design temperature, then control system is cold Solidifying pressure returns to D values.

Wherein, the 3rd given threshold scope, can include：- 2 DEG C~0.

Thus, after by controlling the corresponding saturation temperature of condensing pressure, when indoor environment temperature and user's setting temperature When difference between degree is recovered, the control to the corresponding saturation temperature of condensing pressure is recovered to corresponding states, and then can protect Demonstrate,prove air-conditioning heating reliability of operation and stability, it is also ensured that heat the flexibility of Energy Saving Control.

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can be included：When the outdoor environment temperature More than or equal to the first given threshold range limit (for example：Outdoor environment temperature >=20 DEG C) or less than or equal to described first Given threshold range lower limit is (for example：Outdoor environment temperature≤15 DEG C) when, if the difference is more than the second given threshold model Place limit (for example：+ 3 DEG C of indoor environment temperature ＞ user design temperature), then control the corresponding saturation temperature of the evaporating pressure For the first setting value (for example：The corresponding saturation temperature of evaporating pressure of control system is A values).

For example：If outdoor environment temperature >=20 DEG C, control mode is as follows：During refrigerating operaton, indoor environment temperature is continuous Reduction, if+3 DEG C of indoor environment temperature ＞ user design temperature, the corresponding saturation temperature of evaporating pressure of control system is A Value.

For example：If outdoor environment temperature≤15 DEG C, control mode is as follows：During refrigerating operaton, indoor environment temperature is continuous Reduction, if+3 DEG C of indoor environment temperature ＞ user design temperature, the corresponding saturation temperature of evaporating pressure of control system is A Value.

Alternatively, it is the first setting value to control the corresponding saturation temperature of the evaporating pressure, can specifically be included：By suitable At least one of frequency, the rotating speed of outdoor fan, the aperture of restricting element with the compressor for adjusting the air-conditioning system, make The corresponding saturation temperature of the evaporating pressure is first setting value.

For example：It is the first setting value to control the corresponding saturation temperature of the evaporating pressure, can be included：Adjust compressor and The output of blower fan, and the change of comprehensive throttle valve opening, so that the corresponding saturation temperature of the evaporating pressure is the first setting Value.

For example：In cooling mode, the frequency of compressor is reduced, the outdoor wind of reduction when outdoor fan is in high pressure conditions The rotating speed of machine, the rotating speed of outdoor fan is raised when outdoor fan is in low-pressure state, when the transition that evaporating pressure increases is interval Reduce the aperture of restricting element when becoming big, increase the aperture of restricting element when the transition region anaplasia that evaporating pressure increases is small.

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can be included：When the outdoor environment temperature More than or equal to the first given threshold range limit (for example：Outdoor environment temperature >=20 DEG C) when, if the difference is equal to institute State the second given threshold range limit (for example：Indoor environment temperature=+ 3 DEG C of user's design temperature), then control the vapor pres- sure The corresponding saturation temperature increase of power, and make the corresponding saturation temperature of the evaporating pressure no more than the second setting value (for example：Control The corresponding saturation temperature highest of evaporating pressure can increase to B values).

It is alternatively possible to control the corresponding saturation temperature of evaporating pressure increased in method of the invention with reference to shown in Fig. 2 The schematic flow sheet of one embodiment, further illustrates the corresponding increased detailed process of saturation temperature of the control evaporating pressure.

Step S210, controls the corresponding saturation temperature of the evaporating pressure to increase by the first design temperature, and continues to determine institute State difference scope residing in the second given threshold scope.

More alternatively, the corresponding saturation temperature of the evaporating pressure is controlled to increase by the first design temperature in step S210, can With including：Control the corresponding saturation temperature of the evaporating pressure every when (for example：Every the 3rd setting time, such as every 20 minutes) Increase by first design temperature.

More alternatively, the corresponding saturation temperature of the evaporating pressure is controlled to increase by the first design temperature in step S210, can With including：Control the corresponding saturation temperature delay of the evaporating pressure (for example：Be delayed the 3rd setting time, such as delay 20 minutes) Increase by first design temperature.

For example：When outdoor environment temperature is more than or equal to the first given threshold range limit, if the difference is equal to described Second given threshold range limit is (for example：Indoor environment temperature=+ 3 DEG C of user's design temperature), then control the evaporating pressure Corresponding saturation temperature every setting time (for example：3rd setting time, such as 20 minutes), and/or the setting time that is delayed (for example：3rd setting time, such as 20 minutes) the first design temperature of increase.For example：The evaporating pressure of control system is corresponding full It is (A+1) DEG C with evaporating pressure behind the increase of temperature every 20 minutes 1 DEG C, i.e., 20 minute.When the corresponding saturation temperature of the evaporating pressure Degree increase by first design temperature when, if certain time (for example：Second setting time) in lasting determine to obtain the difference When value is more than or equal to the second given threshold range lower limit and is less than or equal to the second given threshold range limit, then continue to control The corresponding saturation temperature of the evaporating pressure is made every the setting time (for example：3rd setting time, such as 20 minutes) and/ Or it is delayed the setting time (for example：3rd setting time, such as 20 minutes) increase by first design temperature, and the evaporation The corresponding saturation temperature of pressure is no more than the second setting value.For example：Continue the corresponding saturation temperature of evaporating pressure of control system Control evaporating pressure to be (A+2) DEG C behind every 20 minutes increases by 1 DEG C, i.e., 40 minute, control the corresponding saturation temperature of evaporating pressure most Height can increase to B values.

Thus, by every when or delay the corresponding saturation temperature of evaporating pressure is increased, can be in compressor operating Reduced again when stable, the reliability and stability for being conducive to lifting to control the corresponding saturation temperature of evaporating pressure, and not Can be because frequently increase brings unnecessary energy consumption.

Step S220, the corresponding saturation temperature of the control evaporating pressure increase by first design temperature it Afterwards, if being determined in the second setting time, obtaining the difference is decreased to be more than or equal to the second given threshold range lower limit and small In equal to the second given threshold range limit (for example：It is lasting determine to obtain user's design temperature≤indoor environment temperature≤ + 3 DEG C of user's design temperature), then continue to control the corresponding saturation temperature of the evaporating pressure to increase by first design temperature.

For example：If outdoor environment temperature >=20 DEG C, control mode is as follows：During refrigerating operaton, indoor environment temperature is continuous Reduction, when indoor environment temperature=+ 3 DEG C of user's design temperature, then the corresponding saturation temperature of the evaporating pressure of control system every 20 Evaporating pressure is (A+1) DEG C behind minute reduction by 1 DEG C, i.e., 20 minute, if lasting determine to obtain " user's design temperature≤interior ring Border temperature≤+ 3 DEG C of user's design temperature ", then continue the corresponding saturation temperature of the evaporating pressure reduction by 1 in every 20 minutes of control system DEG C, i.e., it is (A+2) DEG C that evaporating pressure is controlled after 40 minutes, and highest control evaporating pressure can be reduced to B values.

For example：When it is determined that obtaining indoor environment temperature=+ 3 DEG C of user's design temperature, timing 20min reduces by 1 when reaching After DEG C, in preset duration, if lasting determine to obtain user's design temperature≤indoor environment temperature≤user's design temperature+3 DEG C, then 1 DEG C is reduced again when timing 20min is reached again.

For example：When it is determined that obtaining indoor environment temperature=+ 3 DEG C of user's design temperature, 1 DEG C is reduced every 20min, simultaneously Continue to determine；If lasting in preset duration determine to obtain user's design temperature≤indoor environment temperature≤user's design temperature+3 DEG C when, then continue every 20min reduce by 1 DEG C.

In an optional specific example, the corresponding saturation temperature increase of the evaporating pressure is controlled, can specifically be included： By being adapted to the frequency for the compressor for reducing the air-conditioning system, and it is adapted to turning for the outdoor fan for adjusting the air-conditioning system At least one of speed, aperture of restricting element, make the corresponding saturation temperature increase of the evaporating pressure.

For example：The corresponding saturation temperature increase of the evaporating pressure is controlled, can be included：The output of compressor is reduced, is adjusted The aperture of outdoor fan rotating speed and choke valve is saved, so that the corresponding saturation temperature increase of the evaporating pressure.

In an optional specific example, the corresponding saturation temperature of the evaporating pressure is set to be no more than the second setting value, tool Body can include：At least one of frequency, rotating speed of outdoor fan by being adapted to the compressor for adjusting the air-conditioning system, When the corresponding saturation temperature of the evaporating pressure is reached second setting value, the corresponding saturation temperature of the evaporating pressure is maintained Degree reaches the state of the second setting value.

For example：The corresponding saturation temperature of the evaporating pressure is no more than the second setting value, can include：Control compressor And blower fan output, the corresponding saturation temperature of the evaporating pressure is reached after the second setting value, maintain the evaporating pressure pair The saturation temperature answered reaches the state of the second setting value.

Thus, by after increasing the corresponding saturation temperature of evaporating pressure, continue to determine indoor environment temperature with Difference between user's design temperature, and the corresponding saturation temperature of the control evaporating pressure is continued according to difference, on the one hand may be used To be reduced to the corresponding temperature of evaporating pressure, on the other hand can also according to indoor environment temperature and user's design temperature it Between difference change in time adjustment increase scheme so that refrigerated energy-saving control flexibility and reliability greatly promoted.

In addition, under refrigeration mode, when indoor environment temperature is less than design temperature, unit has been shut down, so being not in The difference of indoor environment temperature and user's design temperature is less than the situation of setting value (for example：Indoor environment temperature ＜ user sets + 3 DEG C of temperature).

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can be included：When the outdoor environment temperature Less than or equal to the first given threshold range lower limit (for example：Outdoor environment temperature≤15 DEG C) when, if in the first setting time Interior determination obtains the difference more than or equal to the second given threshold range lower limit and less than or equal to the second given threshold scope The upper limit is (for example：If lasting determine to obtain user's design temperature≤indoor environment temperature≤+ 3 DEG C of user's design temperature), control Make the corresponding saturation temperature of the evaporating pressure for the 3rd setting value (for example：The corresponding saturation temperature of evaporating pressure of system is C Value).

For example：If outdoor environment temperature≤15 DEG C, control mode is as follows：During refrigerating operaton, if lasting determine to obtain " user's design temperature≤indoor environment temperature≤+ 3 DEG C of user's design temperature ", the then corresponding saturation temperature of the evaporating pressure of system For C values.

For example：A values, B values, C values, the magnitude relationship of D values and E values, can be the relations that increase successively or mutually Between it is useless limit size relation.

Alternatively, it is the 3rd setting value to control the corresponding saturation temperature of the evaporating pressure, can specifically be included：By suitable At least one of frequency, the rotating speed of outdoor fan, the aperture of restricting element with the compressor for adjusting the air-conditioning system, make The corresponding saturation temperature of the evaporating pressure is the 3rd setting value

For example：It is the 3rd setting value to control the corresponding saturation temperature of the evaporating pressure, can be included：Adjust compressor and The output of blower fan, and the change of comprehensive throttle valve opening, so that the corresponding saturation temperature of the evaporating pressure is the 3rd setting Value.

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can be included：When the outdoor environment temperature More than the first given threshold range lower limit and less than the first given threshold range limit (for example：15 DEG C of ＜ external environments 20 DEG C of temperature ＜) when, maintain to the preceding secondary control of the corresponding saturation temperature of the evaporating pressure (for example：Maintain last control System).

For example：15 DEG C of 20 DEG C of ＜ outdoor environment temperatures ＜, transition is interval, maintains last control.

For example：External environment temperature rises to 16 DEG C from 13 DEG C, then transition interval is entered, according to external environment temperature≤15 DEG C Control mode control.External environment temperature drops to 16 DEG C from 23 DEG C, then it is interval to enter transition, according to external environment temperature >= 20 DEG C of control mode is controlled.

Thus, by under different outdoor environment temperature and indoor environment temperature to the corresponding saturation temperature of evaporating pressure It is controlled, the energy-saving effect of refrigerating operaton can be lifted, and Consumer's Experience is able to significant increase.

In an optional example, step S130 controls the evaporating pressure or condensing pressure of the air-conditioning system corresponding full In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can also be included：When the outdoor environment temperature Degree is more than or equal to the first given threshold range limit (for example：Outdoor environment temperature >=20 DEG C) when, described in the control After the corresponding saturation temperature increase of evaporating pressure；And/or when the outdoor environment temperature is less than or equal to the described first setting threshold It is worth range lower limit (for example：Outdoor environment temperature≤15 DEG C) when, control the corresponding saturation temperature of the evaporating pressure to be described After 3rd setting value, if determining to obtain (for example in the 4th setting time：It is lasting to determine to obtain) difference recovers to big In the second given threshold range limit (for example：Indoor environment temperature returns to+3 DEG C of ＞ user's design temperature), then control The corresponding saturation temperature of the evaporating pressure is recovered to first setting value (for example：The evaporating pressure of control system returns to A Value).

For example：It is more than or equal to the first given threshold range limit and the difference in outdoor environment temperature and is equal to described the In the case of two given threshold range limits, when the corresponding saturation temperature of the evaporating pressure increase by first design temperature, Or again when increasing by first design temperature, however, it is determined that obtain the difference and recover to more than the second given threshold scope The upper limit, then control the corresponding protection temperature of the evaporating pressure to recover to first setting value.

For example：If outdoor environment temperature >=20 DEG C, control mode is as follows：If it is determined that obtaining indoor environment temperature recovery To+3 DEG C of ＞ user's design temperature, then the evaporating pressure of control system returns to A values.For example：Simply during refrigerating operaton, control is steamed Hair pressure returns to A values.

For example：It is less than or equal to the first given threshold range lower limit in outdoor environment temperature and the difference is more than or equal to Second given threshold range lower limit and less than or equal in the case of the second given threshold range limit, when the evaporating pressure When corresponding saturation temperature is three setting value, however, it is determined that obtain the difference and recover to more than second given threshold Range limit, then control the corresponding protection temperature of the evaporating pressure to recover to first setting value.

For example：If outdoor environment temperature≤15 DEG C, control mode is as follows：If it is determined that obtaining indoor environment temperature recovery To+3 DEG C of ＞ user's design temperature, then the evaporating pressure of control system returns to A values.

Wherein, the first given threshold scope, can include：15 DEG C~20 DEG C；And/or, second given threshold Scope, can include：0~3 DEG C.

Thus, after by controlling the corresponding saturation temperature of evaporating pressure, when indoor environment temperature and user's setting temperature When difference between degree is recovered, the control to the corresponding saturation temperature of evaporating pressure is recovered to corresponding states, and then can protect Demonstrate,prove air conditioner refrigerating reliability of operation and stability, it is also ensured that the flexibility of refrigerated energy-saving control.

Through substantial amounts of verification experimental verification, using the technical scheme of the present embodiment, by monitoring indoor environment temperature and visitor in real time The difference of family design temperature, the change of control evaporating pressure or condensing pressure so that the output of compressor reaches optimal section Can effect.

Embodiments in accordance with the present invention, additionally provide a kind of control of air-conditioning system of control method corresponding to air-conditioning system Device processed is (for example：A kind of control device of energy-saving run multi-online air-conditioning system).The one of device of the invention shown in Figure 4 The structural representation of embodiment.The control device of the air-conditioning system be able to can include：Acquiring unit 102, the and of determining unit 104 Control unit 106.

In an optional example, acquiring unit 102, can be used for obtaining the indoor environment temperature of the air-conditioning system with User's design temperature.The concrete function of the acquiring unit 102 and processing are referring to step S110.

In an optional example, determining unit 104 is determined for the indoor environment temperature and set with the user Difference between constant temperature degree.The concrete function of the determining unit 104 and processing are referring to step S120.

In an optional example, control unit 106 can be used for the operational mode according to the air-conditioning system and institute Difference is stated, the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled.

In an optional embodiment, the operational mode can include：Refrigeration mode or heating mode.

In an optional example, described control unit 106 controls the evaporating pressure or condensing pressure of the air-conditioning system Corresponding saturation temperature, can include：When the operational mode is the refrigeration mode, the evaporation of the air-conditioning system is controlled The corresponding saturation temperature of pressure；When the operational mode is the heating mode, the condensing pressure of the air-conditioning system is controlled Corresponding saturation temperature.

In an optional embodiment, it can also include：The acquiring unit 102, can be also used for obtaining the sky The outdoor environment temperature of adjusting system.

In an optional example, described control unit 106 controls the evaporating pressure or condensing pressure of the air-conditioning system Corresponding saturation temperature, can also include：When the operational mode is refrigeration mode, according to the outdoor environment temperature and The difference, controls the corresponding saturation temperature of evaporating pressure of the air-conditioning system.

For example：During refrigerating operaton, scope is (for example according to residing for the outdoor environment temperature：The outdoor environment temperature exists Residing scope in the first given threshold scope), and/or the difference residing for scope (for example：The difference is described Residing scope in two given threshold scopes), control the evaporating pressure of the air-conditioning system (for example：Evaporator during refrigerating operaton Evaporating pressure) corresponding saturation temperature, (example shown in Fig. 5 may refer to the control of the refrigerated energy-saving of the air-conditioning to realize Son)；And/or, during heating operation, according to difference scope residing in the 3rd given threshold scope (for example：According to Difference scope residing in the 3rd given threshold scope), control the condensing pressure of the air-conditioning system (for example：Heat The condensing pressure of condenser during operation) corresponding saturation temperature, to realize that the Energy Saving Control that heats to the air-conditioning (may refer to Example shown in Fig. 6).The concrete function of the control unit 106 and processing are referring to step S130.

In an optional example, described control unit 106 controls the evaporating pressure or condensing pressure of the air-conditioning system Corresponding saturation temperature, can also include：When the operational mode is heating mode, according to the difference, the sky is controlled The corresponding protection temperature of condensing pressure of adjusting system.

In an optional embodiment, it can also include：Setting unit 108.

In an optional example, setting unit 108 can be used for setting the first given threshold scope, the second setting threshold It is worth scope and the 3rd given threshold scope.

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, can specifically be included：If the difference is less than institute State the 3rd given threshold range lower limit (for example：- 2 DEG C of indoor environment temperature ＜ user design temperature), then control the air-conditioning system The corresponding saturation temperature of condensing pressure of system be the 4th setting value (for example：The corresponding saturation temperature of condensing pressure of control system For D values).

In an optional specific example, described control unit 106 controls the condensing pressure of the air-conditioning system corresponding Saturation temperature is the 4th setting value, can specifically be included：By the frequency, the outdoor that are adapted to the compressor for adjusting the air-conditioning system At least one of the rotating speed of blower fan, aperture of restricting element, it is the 4th setting to make the corresponding saturation temperature of the condensing pressure Value.

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, can specifically be included：If the difference is equal to institute State the 3rd given threshold range lower limit (for example：Indoor environment temperature=- 2 DEG C of user's design temperature), then control the condensation pressure The corresponding saturation temperature reduction of power, and the corresponding saturation temperature of the condensing pressure is not less than the 5th setting value (for example：Control The corresponding saturation temperature of the condensing pressure is minimum to be reduced to E values).

More alternatively, described control unit 106 controls the corresponding saturation temperature reduction of the condensing pressure, can specifically wrap Include：Control the corresponding saturation temperature of the condensing pressure to reduce the second design temperature, and continue to determine the difference described the Residing scope in three given threshold scopes.Wherein, the second design temperature can be identical with the first design temperature, can also not Together.The concrete function of the control unit 106 and processing are referring further to step S310.

In a more optional specific example, described control unit 106 controls the corresponding saturation temperature of the condensing pressure The second design temperature is reduced, can specifically be included：Control the corresponding saturation temperature of the condensing pressure every when (for example：Every Six setting times) reduction by second design temperature.

In a more optional specific example, described control unit 106 controls the corresponding saturation temperature of the condensing pressure The second design temperature is reduced, can specifically be included：Control the corresponding saturation temperature delay of the condensing pressure (for example：Delay institute State the 6th setting time) reduction by second design temperature.

More alternatively, described control unit 106 controls the reduction of the condensing pressure corresponding saturation temperature, specifically can be with Including：If being determined in the 5th setting time, obtaining the difference is decreased to be more than or equal under the 3rd given threshold scope Limit and be less than or equal to the 3rd given threshold range limit (for example：It is lasting to determine to obtain -2 DEG C of user's design temperature≤indoor environment Temperature≤user's design temperature) when, then continue to control the corresponding saturation temperature reduction of the condensing pressure the second setting temperature Degree.The concrete function of the control unit 106 and processing are referring further to step S320.

In an optional specific example, described control unit 106 controls the corresponding saturation temperature drop of the condensing pressure It is low, it can specifically include：By being adapted to the frequency for the compressor for raising the air-conditioning system, and it is adapted to the regulation air-conditioning system The rotating speed of outdoor fan, at least one of the aperture of restricting element, the corresponding saturation temperature reduction of the condensing pressure.

In an optional specific example, described control unit 106 makes the corresponding saturation temperature of the condensing pressure not low In the 5th setting value, it can specifically include：Frequency, turn of outdoor fan of the compressor of the air-conditioning system are adjusted by adaptation At least one of speed, when the corresponding saturation temperature of the condensing pressure is reached five setting value, maintains the condensation The corresponding saturation temperature of pressure reaches the state of the 5th setting value.

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, can also specifically be included：If the difference is equal to The 3rd given threshold range lower limit is (for example：Indoor environment temperature=- 2 DEG C of user's design temperature), described in the control After the corresponding saturation temperature reduction of condensing pressure, if determining to obtain (for example in the 7th setting time：It is lasting to determine to obtain) The difference is recovered to less than the 3rd given threshold range lower limit (for example：It is determined that obtaining indoor environment temperature returns to ＜ - 2 DEG C of user's design temperature), then control the corresponding saturation temperature of the condensing pressure to recover to the 4th setting value (for example： The condensing pressure of control system returns to D values).

Wherein, the 3rd given threshold scope, can include：- 2 DEG C~0.

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can specifically be included：When the outdoor environment temperature Degree is more than or equal to the first given threshold range limit (for example：Outdoor environment temperature >=20 DEG C) or less than or equal to described One given threshold range lower limit is (for example：Outdoor environment temperature≤15 DEG C) when, if the difference is more than second given threshold Range limit is (for example：+ 3 DEG C of indoor environment temperature ＞ user design temperature), then control the corresponding saturation temperature of the evaporating pressure Spend for the first setting value (for example：The corresponding saturation temperature of evaporating pressure of control system is A values).

In an optional specific example, described control unit 106 controls the corresponding saturation temperature of the evaporating pressure to be First setting value, can specifically include：Frequency, turn of outdoor fan of the compressor of the air-conditioning system are adjusted by adaptation At least one of speed, aperture of restricting element, it is first setting value to make the corresponding saturation temperature of the evaporating pressure.

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can specifically be included：When the outdoor environment temperature Degree is more than or equal to the first given threshold range limit (for example：Outdoor environment temperature >=20 DEG C) when, if the difference is equal to The second given threshold range limit is (for example：Indoor environment temperature=+ 3 DEG C of user's design temperature), then control the evaporation The corresponding saturation temperature increase of pressure, and make the corresponding saturation temperature of the evaporating pressure no more than the second setting value (for example：Control The corresponding saturation temperature highest of evaporating pressure processed can increase to B values).

More alternatively, described control unit 106 controls the corresponding saturation temperature increase of the evaporating pressure, can specifically wrap Include：Control the corresponding saturation temperature of the evaporating pressure to increase by the first design temperature, and continue to determine the difference described the Residing scope in two given threshold scopes.The concrete function of the control unit 106 and processing are referring further to step S210.

In a more optional specific example, described control unit 106 controls the corresponding saturation temperature of the evaporating pressure Increase by the first design temperature, can specifically include：Control the corresponding saturation temperature of the evaporating pressure every when (for example：Every Three setting times, such as every 20 minutes) increase by first design temperature.

In a more optional specific example, described control unit 106 controls the corresponding saturation temperature of the evaporating pressure Increase by the first design temperature, can specifically include：Control the corresponding saturation temperature delay of the evaporating pressure (for example：Delay the Three setting times, such as delay 20 minutes) increase by first design temperature.

More alternatively, described control unit 106 controls the increase of the evaporating pressure corresponding saturation temperature, specifically can be with Including：After the corresponding saturation temperature of the control evaporating pressure increases by first design temperature, if being set second Interior determination of fixing time obtains the difference and is decreased to be more than or equal to the second given threshold range lower limit and less than or equal to described second Given threshold range limit is (for example：It is lasting to determine to obtain user's design temperature≤indoor environment temperature≤user's design temperature+3 DEG C), then continue to control the corresponding saturation temperature of the evaporating pressure to increase by first design temperature.The control unit 106 Concrete function and processing are referring further to step S220.

In an optional specific example, described control unit 106 controls the corresponding saturation temperature of the evaporating pressure to increase Plus, it can specifically include：By being adapted to the frequency for the compressor for reducing the air-conditioning system, and it is adapted to the regulation air-conditioning system The rotating speed of outdoor fan, at least one of the aperture of restricting element, make the corresponding saturation temperature increase of the evaporating pressure.

In an optional specific example, described control unit 106 makes the corresponding saturation temperature of the evaporating pressure not surpass The second setting value is crossed, can specifically be included：Frequency, turn of outdoor fan of the compressor of the air-conditioning system are adjusted by adaptation At least one of speed, when the corresponding saturation temperature of the evaporating pressure is reached second setting value, maintains the evaporation The corresponding saturation temperature of pressure reaches the state of the second setting value.

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can specifically be included：When the outdoor environment temperature Degree is less than or equal to the first given threshold range lower limit (for example：Outdoor environment temperature≤15 DEG C) when, if when first sets It is interior to determine to obtain the difference more than or equal to the second given threshold range lower limit and less than or equal to the second given threshold model Place limit (for example：If lasting determine to obtain user's design temperature≤indoor environment temperature≤+ 3 DEG C of user's design temperature), Control the corresponding saturation temperature of the evaporating pressure for the 3rd setting value (for example：The corresponding saturation temperature of evaporating pressure of system For C values).

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can specifically be included：When the outdoor environment temperature Degree is more than the first given threshold range lower limit and is less than the first given threshold range limit (for example：15 DEG C of ＜ outer shrouds 20 DEG C of border temperature ＜) when, maintain to the preceding secondary control of the corresponding saturation temperature of the evaporating pressure (for example：Maintain last control System).

Alternatively, described control unit 106 controls the corresponding saturation of evaporating pressure or condensing pressure of the air-conditioning system In temperature, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, can also specifically be included：When the outdoor environment Temperature is more than or equal to the first given threshold range limit (for example：Outdoor environment temperature >=20 DEG C) when, in the control institute After stating the corresponding saturation temperature increase of evaporating pressure；And/or when the outdoor environment temperature is less than or equal to the described first setting Lower threshold limit is (for example：Outdoor environment temperature≤15 DEG C) when, in the corresponding saturation temperature of the control evaporating pressure After the 3rd setting value, if determining to obtain (for example in the 4th setting time：It is lasting to determine to obtain) difference recover to More than the second given threshold range limit (for example：Indoor environment temperature returns to+3 DEG C of ＞ user's design temperature), then control The corresponding saturation temperature of the evaporating pressure is made to recover to first setting value (for example：The evaporating pressure of control system recovers To A values).

For example：If outdoor environment temperature >=20 DEG C, control mode is as follows：If it is determined that obtaining indoor environment temperature recovery To+3 DEG C of ＞ user's design temperature, then the evaporating pressure of control system returns to A values.

The processing and function realized by the device of the present embodiment essentially correspond to earlier figures 1 to the method shown in Fig. 3 Embodiment, principle and example, therefore not detailed part in the description of the present embodiment may refer to mutually speaking on somebody's behalf in previous embodiment It is bright, it will not be described here.

Through substantial amounts of verification experimental verification, using technical scheme, by determining outdoor environment temperature, indoor environment temperature Degree and the design temperature of user, to control different evaporating pressures and condensing pressure, are ensureing indoor refrigeration or heating effect On the premise of control the output of compressor and the effect that is optimal of output of blower fan so that the effect that system is optimal.

Embodiments in accordance with the present invention, additionally provide a kind of air-conditioning system of the control device corresponding to air-conditioning system.Should Air-conditioning system can include：The control device of above-described air-conditioning system.

The processing and function realized by the air-conditioning system of the present embodiment essentially correspond to the device shown in earlier figures 4 Embodiment, principle and example, therefore not detailed part in the description of the present embodiment, may refer to mutually speaking on somebody's behalf in previous embodiment It is bright, it will not be described here.

Through substantial amounts of verification experimental verification, using technical scheme, by under different outdoor environment temperatures, according to The difference of indoor environment temperature and user's design temperature, controls different evaporating pressures and condensing pressure, to better ensure that room System is set to reach optimal energy saving on the premise of interior refrigeration or heating effect, and control accuracy is higher.

To sum up, it will be readily appreciated by those skilled in the art that on the premise of not conflicting, above-mentioned each advantageous manner can be certainly Combined, be superimposed by ground.

Embodiments of the invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made, Equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.

Claims

1. a kind of control method of air-conditioning system, it is characterised in that including：

Obtain the indoor environment temperature and user's design temperature of the air-conditioning system；

Determine the difference between the indoor environment temperature and user's design temperature；

According to the operational mode of the air-conditioning system and the difference, the evaporating pressure or condensation pressure of the air-conditioning system are controlled The corresponding saturation temperature of power.

2. according to the method described in claim 1, it is characterised in that the operational mode, including：Refrigeration mode heats mould Formula；

The evaporating pressure or the corresponding saturation temperature of condensing pressure of the control air-conditioning system, including：

When the operational mode is the refrigeration mode, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled；

When the operational mode is the heating mode, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled.

3. method according to claim 1 or 2, it is characterised in that also include：

Obtain the outdoor environment temperature of the air-conditioning system；

The evaporating pressure or the corresponding saturation temperature of condensing pressure of the control air-conditioning system, in addition to：

When the operational mode is refrigeration mode, according to the outdoor environment temperature and the difference, the air-conditioning is controlled The corresponding saturation temperature of evaporating pressure of system；

When the operational mode is heating mode, according to the difference, control the condensing pressure of the air-conditioning system corresponding Protect temperature.

4. the method according to one of claim 1-3, it is characterised in that the evaporating pressure of the control air-conditioning system Or in the corresponding saturation temperature of condensing pressure, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, including：

When the outdoor environment temperature is more than or equal to the first given threshold range limit or less than or equal to the first given threshold scope During lower limit,

If the difference is more than the second given threshold range limit, it is first to control the corresponding saturation temperature of the evaporating pressure Setting value；

Or,

When the outdoor environment temperature is more than or equal to the first given threshold range limit,

If the difference is equal to the second given threshold range limit, the corresponding saturation temperature of the evaporating pressure is controlled to increase Plus, and the corresponding saturation temperature of the evaporating pressure is no more than the second setting value；

Or,

When the outdoor environment temperature is less than or equal to the first given threshold range lower limit,

If the difference is more than or equal to the second given threshold range lower limit and less than or equal in the second given threshold scope Limit, then it is the 3rd setting value to control the corresponding saturation temperature of the evaporating pressure；

Or,

When the outdoor environment temperature is more than the first given threshold range lower limit and less than the first given threshold scope During the upper limit,

Maintain the preceding secondary control to the corresponding saturation temperature of the evaporating pressure.

5. method according to claim 4, it is characterised in that the corresponding saturation temperature increase of the control evaporating pressure, Including：

The corresponding saturation temperature of the evaporating pressure is controlled to increase by the first design temperature；

If the difference is decreased to be more than or equal to the second given threshold range lower limit and less than or equal to the second given threshold model Limit is placed, then continues to control the corresponding saturation temperature of the evaporating pressure to increase by first design temperature.

6. method according to claim 5, it is characterised in that the corresponding saturation temperature increase of the control evaporating pressure the One design temperature, including：

Control the corresponding saturation temperature of the evaporating pressure every when increase by first design temperature；And/or,

Control the corresponding saturation temperature delay increase of the evaporating pressure first design temperature.

7. the method according to one of claim 4-6, it is characterised in that wherein,

The corresponding saturation temperature of the evaporating pressure is controlled for the first setting value, and/or controls the evaporating pressure corresponding full It is the 3rd setting value with temperature, specifically includes：

By in the frequency of the compressor of the adaptation regulation air-conditioning system, the rotating speed of outdoor fan, the aperture of restricting element At least one, make the corresponding saturation temperature of the evaporating pressure for first setting value, and/or make the evaporating pressure correspondence Saturation temperature be the 3rd setting value；

And/or,

The corresponding saturation temperature increase of the evaporating pressure is controlled, is specifically included：

By being adapted to the frequency for the compressor for reducing the air-conditioning system, and it is adapted to the outdoor fan for adjusting the air-conditioning system At least one of rotating speed, aperture of restricting element, make the corresponding saturation temperature increase of the evaporating pressure；

And/or,

The corresponding saturation temperature of the evaporating pressure is no more than the second setting value, specifically include：

At least one of frequency, rotating speed of outdoor fan by being adapted to the compressor for adjusting the air-conditioning system, make described When the corresponding saturation temperature of evaporating pressure reaches second setting value, the corresponding saturation temperature of the evaporating pressure is maintained to reach The state of second setting value.

8. the method according to one of claim 4-7, it is characterised in that

The corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled, in addition to：

After the corresponding saturation temperature increase of the control evaporating pressure, and/or in the control evaporating pressure Corresponding saturation temperature be the 3rd setting value after,

If the difference is recovered to more than the second given threshold range limit, the corresponding saturation of the evaporating pressure is controlled Temperature is recovered to first setting value；

Wherein,

The first given threshold scope, including：15 DEG C~20 DEG C；And/or,

The second given threshold scope, including：0~3 DEG C.

9. the method according to one of claim 1-8, it is characterised in that the evaporating pressure of the control air-conditioning system Or in the corresponding saturation temperature of condensing pressure, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, including：

If the difference is less than the 3rd given threshold range lower limit, the corresponding saturation of condensing pressure of the air-conditioning system is controlled Temperature is the 4th setting value；

Or,

If the difference is equal to the 3rd given threshold range lower limit, the corresponding saturation temperature drop of the condensing pressure is controlled It is low, and the corresponding saturation temperature of the condensing pressure is not less than the 5th setting value.

10. method according to claim 9, it is characterised in that the corresponding saturation temperature reduction of the control condensing pressure, Including：

The corresponding saturation temperature of the condensing pressure is controlled to reduce the second design temperature；

If the difference is decreased to be more than or equal to the 3rd given threshold range lower limit and less than or equal to the 3rd given threshold model Place in limited time, then continue to control the corresponding saturation temperature of the condensing pressure to reduce by second design temperature.

11. method according to claim 10, it is characterised in that the corresponding saturation temperature reduction of the control condensing pressure Second design temperature, including：

Control the corresponding saturation temperature of the condensing pressure every when reduce by second design temperature；And/or,

Control the corresponding saturation temperature delay reduction of the condensing pressure second design temperature.

12. the method according to one of claim 9-11, it is characterised in that wherein,

The corresponding saturation temperature of condensing pressure for controlling the air-conditioning system is the 4th setting value, is specifically included：

By in the frequency of the compressor of the adaptation regulation air-conditioning system, the rotating speed of outdoor fan, the aperture of restricting element At least one, it is the 4th setting value to make the corresponding saturation temperature of the condensing pressure；

And/or,

The corresponding saturation temperature reduction of the condensing pressure is controlled, is specifically included：

By being adapted to the frequency for the compressor for raising the air-conditioning system, and it is adapted to the outdoor fan for adjusting the air-conditioning system At least one of rotating speed, aperture of restricting element, the corresponding saturation temperature reduction of the condensing pressure；

And/or,

The corresponding saturation temperature of the condensing pressure is not less than the 5th setting value, specifically include：

At least one of frequency, rotating speed of outdoor fan by being adapted to the compressor for adjusting the air-conditioning system, make described When the corresponding saturation temperature of condensing pressure reaches five setting value, the corresponding saturation temperature of the condensing pressure is maintained to reach The state of 5th setting value.

13. the method according to one of claim 9-12, it is characterised in that

The corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled, in addition to：

After the corresponding saturation temperature reduction of the control condensing pressure,

If the difference is recovered to less than the 3rd given threshold range lower limit, the corresponding saturation of the condensing pressure is controlled Temperature is recovered to the 4th setting value；

Wherein,

The 3rd given threshold scope, including：- 2 DEG C~0.

14. a kind of control device of air-conditioning system, it is characterised in that including：

Acquiring unit, indoor environment temperature and user's design temperature for obtaining the air-conditioning system；

Determining unit, for determining the difference between the indoor environment temperature and user's design temperature；

Control unit, for the operational mode according to the air-conditioning system and the difference, controls the steaming of the air-conditioning system Send out pressure or the corresponding saturation temperature of condensing pressure.

15. device according to claim 14, it is characterised in that the operational mode, including：Refrigeration mode heats mould Formula；

Described control unit controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system, specifically includes：

16. the device according to claims 14 or 15, it is characterised in that also include：

The acquiring unit, is additionally operable to obtain the outdoor environment temperature of the air-conditioning system；

Described control unit controls the evaporating pressure or the corresponding saturation temperature of condensing pressure of the air-conditioning system, specifically also wraps Include：

17. the device according to one of claim 14-16, it is characterised in that described control unit controls the air-conditioning system In the corresponding saturation temperature of evaporating pressure or condensing pressure of system, the corresponding saturation temperature of evaporating pressure of the air-conditioning system is controlled Degree, is specifically included：

If the difference is more than the second given threshold range limit, the corresponding saturation temperature of the evaporating pressure is controlled to be First setting value；

Or,

18. device according to claim 17, it is characterised in that described control unit controls the evaporating pressure corresponding Saturation temperature increase, is specifically included：

19. device according to claim 18, it is characterised in that described control unit controls the evaporating pressure corresponding Saturation temperature increases by the first design temperature, specifically includes：

20. the device according to one of claim 17-19, it is characterised in that wherein,

Described control unit controls the corresponding saturation temperature of the evaporating pressure for the first setting value, and/or controls the evaporation The corresponding saturation temperature of pressure is the 3rd setting value, is specifically included：

And/or,

Described control unit controls the corresponding saturation temperature increase of the evaporating pressure, specifically includes：

And/or,

Described control unit makes the corresponding saturation temperature of the evaporating pressure be no more than the second setting value, specifically includes：

21. the device according to one of claim 17-20, it is characterised in that

Described control unit controls the corresponding saturation temperature of evaporating pressure of the air-conditioning system, specifically also includes：

Wherein,

The first given threshold scope, including：15 DEG C~20 DEG C；And/or,

The second given threshold scope, including：0~3 DEG C.

22. the device according to one of claim 14-21, it is characterised in that described control unit controls the air-conditioning system In the corresponding saturation temperature of evaporating pressure or condensing pressure of system, the corresponding saturation temperature of condensing pressure of the air-conditioning system is controlled Degree, is specifically included：

Or,

23. device according to claim 22, it is characterised in that described control unit controls the condensing pressure corresponding Saturation temperature is reduced, and is specifically included：

If the difference is decreased to be more than or equal to the 3rd given threshold range lower limit and less than or equal to the 3rd given threshold model Limit is placed, then continues to control the corresponding saturation temperature of the condensing pressure to reduce by second design temperature.

24. device according to claim 23, it is characterised in that described control unit controls the condensing pressure corresponding Saturation temperature reduces the second design temperature, specifically includes：

25. the device according to one of claim 22-24, it is characterised in that wherein,

Described control unit controls the corresponding saturation temperature of the condensing pressure of the air-conditioning system to be the 4th setting value, specific bag Include：

And/or,

Described control unit controls the corresponding saturation temperature reduction of the condensing pressure, specifically includes：

And/or,

Described control unit makes the corresponding saturation temperature of the condensing pressure be not less than the 5th setting value, specifically includes：

26. the device according to one of claim 22-25, it is characterised in that

Described control unit controls the corresponding saturation temperature of condensing pressure of the air-conditioning system, specifically also includes：

Wherein,

The 3rd given threshold scope, including：- 2 DEG C~0.

27. a kind of air-conditioning system, it is characterised in that including：The control dress of air-conditioning system as described in claim 14-26 is any Put.