CN103388880B - A kind of control method of air-conditioner - Google Patents

A kind of control method of air-conditioner Download PDF

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Publication number
CN103388880B
CN103388880B CN201310116245.6A CN201310116245A CN103388880B CN 103388880 B CN103388880 B CN 103388880B CN 201310116245 A CN201310116245 A CN 201310116245A CN 103388880 B CN103388880 B CN 103388880B
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conditioner
air
temperature
described
predeterminated frequency
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CN201310116245.6A
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CN103388880A (en
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刘阳
吕艳红
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广东美的制冷设备有限公司
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Abstract

The invention belongs to field of air conditioner control, particularly relate to the energy-saving control method of a kind of air-conditioner.The control method of the air-conditioner of present invention offer is provided, can be according to the needs of user, by real time temperature Tw outside sensing chamber and indoor real time temperature Tn, calculate the temperature difference △ Ts between indoor real time temperature Tn and indoor objects temperature Tm, according to outdoor real time temperature Tw and the outdoor temperature threshold value Ty result of the comparison preset, control to run on the first corresponding on described temperature difference △ Ts predeterminated frequency of air-conditioner or the second predeterminated frequency.Realize adjusting at any time the running frequency of air-conditioner, the running temperature of air-conditioner is controlled in optimal comfort conditions, user's refrigeration or the demand heated can be met, improve Consumer's Experience, the power consumption of air-conditioner can be reduced again, it is achieved energy-conserving and environment-protective.

Description

A kind of control method of air-conditioner

Technical field

The invention belongs to field of air conditioner control, particularly relate to the energy-saving control method of a kind of air-conditioner.

Background technology

Air-conditioner is denounced by users as power consumption rich and influential family in household electrical appliance, but, along with the raising of efficiency level, frequency changer application commercially is more and more extensive, really reduces energy consumption for air-conditioner and has played many effects.But, in air-conditioner usual uses, it being all to realize temperature controlled by setting the method for indoor objects temperature, often after setting temperature, would not have more regulation and control again, air-conditioner can be object run according to design temperature always.

As a example by needing air-conditioner refrigeration summer, user is in order to reach the purpose of fast-refrigerating, and generally first meeting one the relatively low temperature of setting in air-conditioner startup realizes.But user is when entering sleep night, after outdoor temperature reduces, the heat being passed to indoor can significantly reduce, indoor temperature also can decrease, do not need high refrigerating capacity, if but user changes temperature setting the most in time, and will result in energy waste and comfortableness reduces.User is often after being frozen and waking up, and change temperature is arranged again, can be only achieved energy-conservation and comfortableness requirement.Thus, under the trend currently the most not only emphasized comfortableness but also more focus on energy-saving and emission-reduction, how to make air-conditioner can automatically combine the height of outdoor environment temperature, in the case of, refrigeration duty height high at outdoor environment temperature, it is achieved fully to freeze;After outdoor temperature reduces, reduce the refrigeration duty of air-conditioner the most in time, be technical problem the most urgently to be resolved hurrily.

Summary of the invention

In view of this, the purpose of the present invention is i.e. to provide the control method of a kind of air-conditioner, aim to solve the problem that in existing air-conditioner running after target temperature sets and cannot adjust running frequency in real time, it is impossible to realize not only meeting user's comfortableness but also take into account the technical problem of energy-conserving and environment-protective.

To achieve these goals, the technical scheme that the present invention provides is:

A kind of control method of air-conditioner, described air-conditioner includes compressor, indoor and outdoor heat exchanger, indoor temperature transmitter, outdoor temperature sensor and controller, and described method includes the following steps that perform of order:

Step a: before or after air-conditioner enters energy saver mode, controls air-conditioner and presses indoor objects temperature Tm operation preset time t, make to be rapidly achieved target temperature;

Step b: real time temperature Tw and indoor real time temperature Tn outside sensing chamber, calculates the temperature difference △ Ts between described indoor real time temperature Tn and indoor objects temperature Tm of setting;

Step c: compared with outdoor temperature threshold value Ty preset by described outdoor real time temperature Tw, when outdoor real time temperature Tw is more than or equal to outdoor temperature threshold value Ty, performs step d;When outdoor real time temperature is less than outdoor temperature threshold value Ty, perform step e;

Step d: control air-conditioner and run on described the first corresponding for temperature difference △ Ts predeterminated frequency;

Step e: control air-conditioner and run on described the second corresponding for temperature difference △ Ts predeterminated frequency;

Wherein, described first predeterminated frequency and the second predeterminated frequency are the compressor operation frequencies being correspondingly arranged with described temperature difference △ Ts respectively, and in the case of described temperature difference △ Ts is identical, described first predeterminated frequency is more than described second predeterminated frequency.

The control method of the air-conditioner of present invention offer is provided, can be according to the needs of user, by real time temperature Tw outside sensing chamber and indoor real time temperature Tn, calculate the temperature difference △ Ts between indoor real time temperature Tn and indoor objects temperature Tm, according to outdoor real time temperature Tw and the outdoor temperature threshold value Ty result of the comparison preset, control to run on the first corresponding on described temperature difference △ Ts predeterminated frequency of air-conditioner or the second predeterminated frequency.According to outdoor real time temperature situation, the operation adjusting air-conditioner controls, and meets the energy saving requirement that air-conditioner in the case of different thermic load uses, i.e. in the case of thermic load is little, the second predeterminated frequency of preferential employing energy-saving run;In the case of thermic load is big, preferential the first predeterminated frequency using raising comfortableness.Further, according to user's requirement to comfortableness, the predeterminated frequency of energy-saving run can also be arranged to multiple situation, if comfortableness is required height, then uses certain difference on the frequency, when using less frequency-splitting, and the comfortableness just having;If energy-saving effect is more taken notice of by user, then use relatively low fixed frequency, so can preferably save the energy.

Accompanying drawing explanation

Fig. 1 is the flowchart of the air-conditioner control method that first embodiment of the invention provides;

Fig. 2 is the flowchart of the air-conditioner control method that second embodiment of the invention provides;

Fig. 3 is the first predeterminated frequency and the relation schematic diagram of the second predeterminated frequency in the air-conditioner control method that third embodiment of the invention provides;

Fig. 4 is the first predeterminated frequency and the relation schematic diagram of the second predeterminated frequency in the air-conditioner control method that fourth embodiment of the invention provides;

Fig. 5 is the first predeterminated frequency and the relation schematic diagram of the second predeterminated frequency in the air-conditioner control method that fifth embodiment of the invention provides.

Detailed description of the invention

In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

Fig. 1 is the flowchart of the air-conditioner control method that first embodiment of the invention provides;For convenience of description, illustrate only part related to the present embodiment, as shown in the figure:

In step s 11, control air-conditioner and enter saving operation mode.

In the air-conditioner control method that the present invention provides, this step is steps necessary.Before this step, user's air-conditioner to be first turned on, set temperature Tm and bring into operation as target temperature, control air-conditioner and enter refrigeration or the mode of operation heated.After air-conditioner runs, according to indoor objects temperature Tm, a period of time preset, automatically into saving operation mode;Or under the selection of user operates, air-conditioner enters saving operation mode.

In step s 12, real time temperature Tw and indoor real time temperature Tn outside sensing chamber, calculate the temperature difference △ Ts between described indoor real time temperature Tn and indoor objects temperature Tm.

In this step, controller obtains outdoor real time temperature Tw and indoor real time temperature Tn by outdoor temperature sensor and indoor temperature transmitter respectively, and calculates the temperature difference △ Ts between indoor real time temperature Tn and indoor objects temperature Tm.In cooling mode, indoor real time temperature Tn is typically high than indoor objects temperature Tm;And in a heating mode, indoor real time temperature Tn is then lower than indoor objects temperature Tm, however it is necessary that and draw attention to, temperature difference △ Ts herein is only positive number, is i.e. the absolute difference in agent's room between real time temperature Tn and indoor objects temperature Tm.

In step s 13, described outdoor real time temperature Tw is compared with outdoor temperature threshold value Ty preset, it is judged that whether outdoor real time temperature Tw is less than outdoor temperature threshold value Ty: be, then perform step S15;No, then perform step S14.

In this step, controller needs to compare outdoor real time temperature Tw with outdoor temperature threshold value Ty preset, it is judged that size.This outdoor temperature threshold value Ty preset sets when being dispatched from the factory by producer or user independently sets.As preferably, outdoor temperature threshold value Ty can be set respectively according to air conditioner refrigerating and the difference of heating mode.Such as, in cooling mode, outdoor temperature threshold value Ty is 33 DEG C;In a heating mode, outdoor temperature threshold value Ty is 20 DEG C, etc..When compare draw outdoor real time temperature less than outdoor temperature threshold value Ty time, forward step S15 to;When outdoor real time temperature Tw is not less than (being i.e. more than or equal to) outdoor temperature threshold value Ty, forward step S14 to.

In step S14, control air-conditioner and run on described the first corresponding for temperature difference △ Ts predeterminated frequency.

In step S15, control air-conditioner and run on described the second corresponding for temperature difference △ Ts predeterminated frequency.

In above-mentioned steps S14 and step S15, the first predeterminated frequency and the second predeterminated frequency are the compressor operation frequency arranged with temperature difference △ Ts one_to_one corresponding respectively, and in the case of temperature difference △ Ts is identical, the first predeterminated frequency is more than the second predeterminated frequency.It is to say, under any one specific temperature difference △ Ts, the first predeterminated frequency is always big than the second predeterminated frequency.So, in a chiller mode as a example by, high in outside air temperature, use higher compressor operating frequency in the case of thermic load is big in room, it can be ensured that the comfortableness of user;When outside air temperature declines, during less than outdoor temperature threshold value Ty preset, the most automatically use the second predeterminated frequency that frequency is relatively low, on the one hand can save the energy, on the other hand, it is also possible to reduce moisture removal, improve indoor comfort further.

Fig. 2 is the flowchart of the air-conditioner control method that second embodiment of the invention provides;For convenience of description, illustrate only part related to the present embodiment, as shown in the figure:

In step s 11, control air-conditioner and enter saving operation mode.

In step S112, control air-conditioner and press indoor objects temperature Tm operation Preset Time.

In step s 12, real time temperature Tw and indoor real time temperature Tn outside sensing chamber, calculate the temperature difference △ Ts between described indoor real time temperature Tn and indoor objects temperature Tm.

In step s 13, described outdoor real time temperature Tw is compared with outdoor temperature threshold value Ty preset, it is judged that whether outdoor real time temperature Tw is less than outdoor temperature threshold value Ty: be, then perform step S15;No, then perform step S14.

In step S14, control air-conditioner and run on described the first corresponding for temperature difference △ Ts predeterminated frequency.

In step S15, control air-conditioner and run on described the second corresponding for temperature difference △ Ts predeterminated frequency.

As the presently preferred embodiments, after the air-conditioner of step S11 enters saving operation mode, in order to make air-conditioner be rapidly achieved target set temperature, first control compressor in preset time t, press the operation of indoor objects temperature Tm.This time t preset can be set when air-conditioner dispatches from the factory by producer, it is also possible to by user according to self needs, independently sets.Generally, as the presently preferred embodiments, the span of preset time t was preferred between 0.5 minute to 30 minute.The control method that the present embodiment uses, goes for relaxing at user night and sleeps.As a example by the most in a chiller mode, during beginning, after indoor objects temperature Tm operation Preset Time pressed by air-conditioner, indoor temperature suppression ratio is relatively easy to fall asleep, after when night, outdoor temperature reduces, use the second predeterminated frequency that frequency is relatively low, on the one hand can reduce energy consumption, on the other hand, after falling asleep due to people, human body heating reduces, and uses relatively low compressor operating frequency, can more comfortable be difficult to freeze awake.

After running preset time t according to indoor objects temperature Tm high frequency, enter back in next step S12: real time temperature Tw and indoor real time temperature Tn outside sensing chamber, calculate the temperature difference △ Ts between described indoor real time temperature Tn and indoor objects temperature Tm.Next method step, then identical with first embodiment, just repeat no more at this.

Illustrate under specific temperature difference △ Ts below by several specific embodiments, the first predeterminated frequency and the relation of the second predeterminated frequency.Fig. 3-Fig. 5 is in the air-conditioner control method that third embodiment of the invention to the 5th embodiment provides respectively, the relation schematic diagram of the first predeterminated frequency and the second predeterminated frequency.

Embodiment three: see Fig. 3.

Curve S1 and curve S2 in Fig. 3 are and each specific temperature difference △ Ts the first predeterminated frequency curve one to one and the second predeterminated frequency curve respectively.Upper from figure: corresponding to each temperature difference △ Ts on abscissa, the point on the first predeterminated frequency curve S1 is all big than the point on the second predeterminated frequency curve S2, and difference is 15Hz.It is to say, the difference of the first predeterminated frequency and the second predeterminated frequency is a fixed numbers, both of which is as the increase of temperature difference △ Ts and increases.Certainly, Fig. 3 is not used to limit the first predeterminated frequency and the second predeterminated frequency relation that phenomenon increases along with the increase of temperature difference △ Ts.The first predeterminated frequency curve S1 shown in Fig. 3 and the second predeterminated frequency curve S2 is for two straight lines, but actually, the first predeterminated frequency and the second predeterminated frequency that present non-linear growth along with the increase of temperature difference △ Ts are the most all feasible, as long as meeting corresponding to each temperature difference △ Ts, the difference of the first predeterminated frequency and the second predeterminated frequency is a fixed numbers.

Additionally, the first predeterminated frequency can also be fixed as the maximum running frequency of air-conditioner, the second predeterminated frequency then and keeps suitable proportionate relationship to be also feasible between the first predeterminated frequency.

Embodiment four: see Fig. 4.

Curve S1 and curve S2 in Fig. 4 are and each specific temperature difference △ Ts the first predeterminated frequency curve one to one and the second predeterminated frequency curve the most respectively.From the curve of Fig. 4, in this 4th embodiment, be proportionate relationship corresponding to each temperature difference △ Ts, the first predeterminated frequency and the second predeterminated frequency, in figure the relation of two straight lines S1, S2 can represent for S2=0.5*S1.Proportionality coefficient can be between 0 to 1, at this and be not intended to be limited in any, it is only necessary to meeting the first predeterminated frequency than the second predeterminated frequency greatly and is the condition of proportionate relationship with the second predeterminated frequency.

Embodiment five: see Fig. 5.

Curve S1 and curve S2 in figure are and each specific temperature difference △ Ts the first predeterminated frequency curve one to one and the second predeterminated frequency curve the most respectively.In the present embodiment, represent the curve S2 of the second predeterminated frequency be one be parallel to abscissa, slope is the straight line of zero, say, that the second predeterminated frequency here is a fixing frequency values, than 20Hz as shown.First predeterminated frequency curve S1 then increases with the increase of temperature difference △ Ts, and temperature difference △ Ts is the biggest, and the first predeterminated frequency is the biggest.

The control method of the air-conditioner of present invention offer is provided, can be according to the needs of user, by real time temperature Tw outside sensing chamber and indoor real time temperature Tn, calculate the temperature difference △ Ts between indoor real time temperature Tn and indoor objects temperature Tm, according to outdoor real time temperature Tw and the outdoor temperature threshold value Ty result of the comparison preset, control to run on the first corresponding on described temperature difference △ Ts predeterminated frequency of air-conditioner or the second predeterminated frequency.Realize adjusting at any time the running frequency of air-conditioner, the running temperature of air-conditioner is controlled in optimal comfort conditions, user's refrigeration or the demand heated can be met, improve Consumer's Experience, the power consumption of air-conditioner can be reduced again, it is achieved energy-conserving and environment-protective.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, although the present invention having been carried out explanation in greater detail with reference to previous embodiment, for a person skilled in the art, the technical scheme described in foregoing embodiments still can be modified or wherein portion of techniques feature is carried out equivalent by it.All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.

Claims (9)

1. a control method for air-conditioner, described air-conditioner includes the compressor of frequency-adjustable, indoor and outdoor heat exchanger, indoor temperature transmitter, outdoor temperature sensor and controller, it is characterised in that described method includes the following steps that perform of order:
Step a: before or after air-conditioner enters saving operation mode, controls air-conditioner and presses indoor objects temperature Tm operation preset time t, make to be rapidly achieved target temperature;
Step b: real time temperature Tw and indoor real time temperature Tn outside sensing chamber, calculates the temperature difference △ Ts between described indoor real time temperature Tn and indoor objects temperature Tm of setting;
Step c: compared with outdoor temperature threshold value Ty preset by described outdoor real time temperature Tw, when outdoor real time temperature Tw is more than or equal to outdoor temperature threshold value Ty, performs step d;When outdoor real time temperature is less than outdoor temperature threshold value Ty, perform step e;
Step d: control air-conditioner and run on described the first corresponding for temperature difference △ Ts predeterminated frequency;
Step e: control air-conditioner and run on described the second corresponding for temperature difference △ Ts predeterminated frequency;
Wherein, described first predeterminated frequency and the second predeterminated frequency are the compressor operation frequencies being correspondingly arranged with described temperature difference △ Ts respectively, and in the case of described temperature difference △ Ts is identical, described first predeterminated frequency is more than described second predeterminated frequency.
2. the control method of air-conditioner as claimed in claim 1, it is characterised in that in the case of described temperature difference △ Ts is identical, described first predeterminated frequency is a fixed numbers with the difference of described second predeterminated frequency.
3. the control method of air-conditioner as claimed in claim 1, it is characterised in that in the case of described temperature difference △ Ts is identical, described second predeterminated frequency and described first predeterminated frequency are specific proportionate relationship.
4. the control method of air-conditioner as claimed in claim 1, it is characterised in that described second predeterminated frequency is a fixing low frequency value, and described first predeterminated frequency increases with the increase of described temperature difference △ Ts.
5. the control method of air-conditioner as claimed in claim 1, it is characterised in that also comprised the steps: before described step a
Start air-conditioner, set indoor objects temperature Tm.
6. the control method of air-conditioner as claimed in claim 5, it is characterised in that described step a is particularly as follows: control air-conditioner and run preset time t by described indoor objects temperature Tm, be rapidly achieved after target temperature automatically into saving operation mode.
7. the control method of air-conditioner as claimed in claim 5, it is characterized in that, described step a, particularly as follows: receive the control information operation of user, controls air-conditioner and enters saving operation mode, control air-conditioner in preset time t, press the operation of indoor objects temperature Tm, make to be rapidly achieved target temperature;.
8. the control method of air-conditioner as claimed in claim 1, it is characterised in that setting when described Preset Time is dispatched from the factory by producer or user independently sets, its span is between 0.5 minute to 30 minutes.
9. the control method of air-conditioner as claimed in claim 1, it is characterised in that set when described outdoor temperature threshold value Ty is dispatched from the factory by producer or user independently sets.
CN201310116245.6A 2013-04-03 2013-04-03 A kind of control method of air-conditioner CN103388880B (en)

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CN104006498B (en) * 2014-05-27 2017-06-13 广东美的制冷设备有限公司 The control method and device of air-conditioner automatic running
CN105371416B (en) * 2014-08-22 2018-04-13 珠海格力电器股份有限公司 The control method and device of operating modes of air conditioner
CN104362861B (en) * 2014-09-29 2018-06-01 四川长虹电器股份有限公司 A kind of method and apparatus for controlling driven compressor frequency
CN104764162B (en) * 2015-03-31 2017-06-09 广东美的制冷设备有限公司 A kind of energy-saving control method of air-conditioner, control system and air-conditioner
CN105180349B (en) * 2015-08-05 2017-11-10 广东美的制冷设备有限公司 Air conditioner and its control method and control device
CN105135617B (en) * 2015-09-07 2018-01-23 珠海格力电器股份有限公司 Control method, the device and system of the running frequency of convertible frequency air-conditioner
CN105241006B (en) * 2015-09-29 2017-11-14 海信(广东)空调有限公司 A kind of control method of convertible frequency air-conditioner, control device and convertible frequency air-conditioner
CN105202840B (en) * 2015-10-26 2017-11-21 珠海格力电器股份有限公司 The startup method and apparatus of cooling device
CN106895541B (en) * 2015-12-18 2019-05-10 奥克斯空调股份有限公司 A kind of energy-saving control method under air conditioner refrigeration mode based on users'comfort
CN105509236B (en) * 2015-12-18 2018-03-30 奥克斯空调股份有限公司 The control method of air-conditioning auxiliary electrical heater
CN105928145B (en) * 2016-05-03 2019-09-03 青岛海尔空调器有限总公司 A kind of air-conditioning low-frequency operation control method and air-conditioning
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CN106839319B (en) * 2017-02-17 2019-08-13 科华恒盛股份有限公司 A kind of compressor of air conditioner method for controlling number of revolution
CN107023941B (en) * 2017-03-30 2020-04-24 青岛海尔空调器有限总公司 Air conditioner and heating control method and control device thereof
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