CN104236010A - Control method of air conditioner - Google Patents
Control method of air conditioner Download PDFInfo
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- CN104236010A CN104236010A CN201310248544.5A CN201310248544A CN104236010A CN 104236010 A CN104236010 A CN 104236010A CN 201310248544 A CN201310248544 A CN 201310248544A CN 104236010 A CN104236010 A CN 104236010A
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Abstract
The invention discloses a control method of an air conditioner. The control method includes the steps of S1, detecting running time and running current of a compressor of the air conditioner, in a refrigerating mode; S2, comparing the detected running current of the compressor to a first preset value; S3, if the detected running current of the compressor is higher than or equal to the first preset value, controlling the speed of an indoor fan of the air conditioner to decrease from a current level to a preset level; if the detected running current of the compressor is lower than a first preset value, returning to the step S2. The preset level of speed is lower than a low level of speed of the air conditioner. The control method has the advantages that when the detected running current of the compressor is higher than or equal to the first preset value, the air level of the air conditioner is switched from the current air level to a current protective air level; the running current of the compressor is effectively decreased, current protection is effectively achieved accordingly, the fact that frequent shutoff of the compressor causes frequent trip of the air conditioner is avoided, and comfort of use is improved for users.
Description
Technical field
The present invention relates to household appliance technical field, especially relate to a kind of control method of air-conditioner.
Background technology
Current constant speed air-conditioning has current protecting function, just air-conditioner is closed when the electric current that freezes exceedes a certain setting value, thus play the effect of protection, existing air-conditioner affects use in order to avoid causing the frequent protection of air-conditioner, another one current protection value is set before current protection needs to close air-conditioner, when exceeding this protection value, air conditioner chamber's inner blower is converted to low wind shelves by higher wind shelves and runs, the running current of air-conditioner can be reduced by this method, thus play certain protective effect, but due to the requirement of air-conditioner self, difference between some air-conditioner height wind shelves and low wind shelves is less, when wind shelves are changed, the protective effect played is limited.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose a kind of control method effectively reducing the air-conditioner of the running current of compressor.
According to the control method of the air-conditioner of the embodiment of the present invention, comprise the steps: S1: under cooling operation mode, detect running time and the running current of the compressor of described air-conditioner; S2: the running current of the described compressor detected and the first predetermined value are compared; S3: when detecting that the running current of described compressor is more than or equal to the first predetermined value, the rotating speed controlling the indoor fan of described air-conditioner is reduced to desired speed by the rotating speed of current wind shelves, when detecting that the running current of described compressor is less than the first predetermined value, get back to step S2, wherein, described desired speed is less than the rotating speed of the low wind shelves of described air-conditioner.
According to the control method of the air-conditioner of the embodiment of the present invention; when detecting that the running current of compressor is more than or equal to the first predetermined value; the wind shelves controlling air-conditioner switch to current protection wind shelves from current wind shelves; effectively can reduce the running current of compressor; thus can effectively play current protection effect; need not close compressor frequently, cause the frequent stop jumping of air-conditioner, improve the comfortableness that user uses.
In addition, according to the control method of air-conditioner of the present invention, also there is following additional technical feature:
In some embodiments of the invention, the control method of air-conditioner also comprises the steps: S4: in the process that described indoor fan rotates with desired speed, the running current of the compressor detected and the second predetermined value are compared; S5: when detect the running current of described compressor be reduced to be less than or equal to the second predetermined value time, the rotating speed of the wind shelves before the rotating speed controlling the indoor fan of described air-conditioner is risen to by desired speed, get back to step S2, when detecting that the running current of described compressor is greater than the second predetermined value, get back to step S4.Thus the automaticity of air-conditioner can be improved, play on the basis of good current protection in guarantee to air-conditioner, improve the comfort level of air-conditioner.
According to some embodiments of the present invention, the control method of air-conditioner also comprises the steps: S6: in the running of described compressor, the running current of the described compressor detected and the 3rd predetermined value is compared; S7: when detecting that the running current of described compressor is more than or equal to the 3rd predetermined value and continued for first scheduled time, then control described compressor out of service, wherein, described 3rd predetermined value is greater than the first predetermined value.Thus can ensure under bad working environments, good current protection effect can be played to air-conditioner.
Alternatively, described first scheduled time is 5 minutes.
Further, the control method of air-conditioner also comprises the steps: S8: in the running of described compressor, the running current of the described compressor detected and the 4th predetermined value is compared; S9: when detecting that the running current of described compressor is more than or equal to the 4th predetermined value and continued for second scheduled time, then control described compressor out of service, wherein, described 4th predetermined value is greater than the 3rd predetermined value, and described second scheduled time is less than described first scheduled time.Thus can ensure further under bad working environments, good current protection effect can be played to air-conditioner.
Alternatively, described second scheduled time was 5 seconds.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the flow chart of the control method of air-conditioner according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Below with reference to Fig. 1, the control method according to a kind of air-conditioner of the embodiment of the present invention is described, wherein, air-conditioner can have multiple wind shelves, as high wind shelves, apoplexy shelves, low wind shelves and current protection wind shelves, the speed setting of current protection wind shelves is desired speed, desired speed is less than the rotating speed of the low wind shelves of air-conditioner, particularly, the rotating speed of current protection wind shelves and desired speed are set as the minimum speed that indoor fan can run, and the rotating speed meeting current protection wind shelves is less than the rotating speed of the low wind shelves of air-conditioner, wherein, high wind shelves, apoplexy shelves, low wind shelves can be set by controller by user, the wind shelves that current protection wind shelves set when being and protection occurs in air-conditioner refrigerating operaton process automatically, user cannot directly set.
According to the control method of the air-conditioner of the embodiment of the present invention, as shown in Figure 1, comprise the steps:
S1: under cooling operation mode, detects running time and the running current of the compressor of air-conditioner, and wherein, the method for the running time and running current of detecting compressor, known by those skilled in the art, is just not described in detail here.
S2: the running current of the compressor detected and the first predetermined value are compared.
S3: when detecting that the running current of compressor is more than or equal to the first predetermined value, the rotating speed controlling the indoor fan of air-conditioner is reduced to desired speed by the rotating speed of current wind shelves, when detecting that the running current of compressor is less than the first predetermined value, gets back to step S2.
That is; under cooling operation mode; in the running of compressor; the running current of the compressor detected and the first predetermined value are compared; when the running current of compressor is more than or equal to the first predetermined value; the rotating speed controlling the indoor fan of air-conditioner is reduced to desired speed by the rotating speed of current wind shelves; such as be reduced to desired speed by the rotating speed of high wind shelves; thus switch to current protection wind shelves by current wind shelves; wherein; when air-conditioner is switched to current protection wind shelves by current wind shelves, the running current of compressor can along with reduction.When detecting that the running current of compressor is less than the first predetermined value, then continue the running current of the compressor detected and the first predetermined value to be compared, until the running current of compressor is more than or equal to the first predetermined value.Wherein, the first predetermined value and desired speed specifically can set according to the performance of different air-conditioner.
According to the control method of the air-conditioner of the embodiment of the present invention; under cooling operation mode; when detecting that the running current of compressor is more than or equal to the first predetermined value; the wind shelves controlling air-conditioner switch to current protection wind shelves from current wind shelves; effectively can reduce the running current of compressor, thus can effectively play current protection effect, need not close compressor frequently; cause the frequent stop jumping of air-conditioner, improve the comfortableness that user uses.
In some embodiments of the invention, as shown in Figure 1, the control method of air-conditioner also comprises the steps:
S4: in the process that indoor fan rotates with desired speed, the running current of the compressor detected and the second predetermined value are compared, wherein, this second predetermined value is less than the first predetermined value, and the second predetermined value also specifically can set according to the performance of different air-conditioner.
S5: when detect the running current of compressor be reduced to be less than or equal to the second predetermined value time, the rotating speed of the wind shelves before the rotating speed of indoor fan controlling air-conditioner is risen to by desired speed, and get back to step S2, when detecting that the running current of compressor is greater than the second predetermined value, get back to step S4.
Be in high wind shelves with air-conditioner below to operate to example and be described, in the running of compressor, when the running current of compressor air-conditioner being detected is more than or equal to the first predetermined value, then the rotating speed of control room inner blower is reduced to the desired speed of current protection wind shelves by the rotating speed of high wind shelves, to carry out current protection to air-conditioner, now the running current of compressor can reduce along with the reduction of rotating speed, in the process that indoor fan rotates with desired speed, when detect the running current of compressor be reduced to be less than or equal to the second predetermined value time, exit current protection, the rotating speed of indoor fan controlling air-conditioner is risen by the desired speed of current protection wind shelves the rotating speed of paramount wind shelves.When detecting that the running current of compressor is greater than the second predetermined value, then continue the running current of the compressor detected and the second predetermined value to be compared, until the running current of compressor is less than or equal to the second predetermined value.
According to the control method of the air-conditioner of the embodiment of the present invention; by when detecting that the running current of compressor is less than or equal to the second predetermined value; exit current protection; thus the automaticity of air-conditioner can be improved; play on the basis of good current protection in guarantee to air-conditioner, improve the comfort level of air-conditioner.
In some embodiments of the invention, as shown in Figure 1, the control method of air-conditioner also comprises the steps:
S6: in the running of compressor, compares the running current of the compressor detected and the 3rd predetermined value, and wherein, the 3rd predetermined value is greater than the first predetermined value.
S7: when detecting that the running current of compressor is more than or equal to the 3rd predetermined value and continued for first scheduled time; then control compressor out of service; that is; when detecting that the running current of compressor is more than or equal to the 3rd predetermined value; and when after first scheduled time, the running current of compressor is still more than or equal to the 3rd predetermined value; then control compressor out of service, thus can ensure under bad working environments, good current protection effect can be played to air-conditioner.Wherein, the 3rd predetermined value and first scheduled time specifically can set according to the performance of different air-conditioner.Alternatively, first scheduled time was 5 minutes.
As shown in Figure 1, further, the control method of air-conditioner also comprises the steps:
S8: in the running of compressor, compares the running current of the compressor detected and the 4th predetermined value, and wherein, the 4th predetermined value is greater than the 3rd predetermined value.
S9: when detecting that the running current of compressor is more than or equal to the 4th predetermined value and continued for second scheduled time, then control compressor out of service, wherein, second scheduled time was less than for first scheduled time, and the 4th predetermined value and second scheduled time specifically can set according to the performance of different air-conditioner.Alternatively, second scheduled time was 5 seconds.That is; in the running of compressor; when detecting that the running current of compressor is more than or equal to the 4th predetermined value; and after second scheduled time; when the running current of compressor is still more than or equal to the 4th predetermined value; control compressor is out of service, thus can ensure further under bad working environments, can play good current protection effect to air-conditioner.
The control method of air-conditioner is according to the preferred embodiment of the invention described below with reference to Fig. 1, wherein, air-conditioner is provided with four current values and is respectively the first predetermined value, the second predetermined value, the 3rd predetermined value and the 4th predetermined value, the second predetermined value < first predetermined value < the 3rd predetermined value < the 4th predetermined value.
In air-conditioner refrigerating operaton process, by the running current of compressor that detects and the first predetermined value, 3rd predetermined value and the 4th predetermined value compare, when detecting that the running current of compressor is more than or equal to the first predetermined value, indoor fan is switched to current protection wind shelves by current operation wind shelves, to carry out current protection to air-conditioner, now the running current of compressor reduces along with the rotating speed reduction of indoor fan, when air-conditioner runs with current protection wind shelves, when detecting that the running current of compressor is less than or equal to the second predetermined value, indoor fan reverts to the wind shelves before current protection by current protection wind shelves.
Under bad working environments, in the running of compressor, a kind of situation is when detecting that the running current of compressor is more than or equal to the 3rd predetermined value more than first scheduled time, controls compressor out of service.Another kind of situation is when detecting that the running current of compressor is more than or equal to the 4th predetermined value more than second scheduled time, controls compressor out of service.
For specific embodiment, the control method according to the air-conditioner of the embodiment of the present invention is described below.
With specified refrigeration electric current for 5A, specified refrigerating capacity is the air-conditioner of 2600W is that example is described.
The rotating speed of the high wind shelves of setting air conditioner chamber inner blower is 1200 revs/min, and the rotating speed of apoplexy shelves is 1100 revs/min, and low wind shelves are 900 revs/min, and rotating speed and the desired speed of current protection wind shelves are set as 700 revs/min.Set that the first predetermined value is 7A, the second predetermined value is 6A, the 3rd predetermined value is 8A, the 4th predetermined value is 10A, first scheduled time was 5 minutes, second scheduled time was 5 seconds.
Under air-conditioner is in cooling operation mode, when the running current of compressor is more than or equal to 10A more than 5 second, close compressor.
Under air-conditioner is in cooling operation mode, when the running current of compressor was more than or equal to 8A more than 5 minutes, close compressor.
Under air-conditioner is in cooling operation mode; when the running current of compressor is more than or equal to 7A; indoor set is switched to current protection wind shelves by current wind shelves; if namely the rotating speed of current indoor blower fan is high wind shelves 1200 revs/min; when compressor operating electric current is more than or equal to 7A, the rotating speed of indoor fan is reduced to the rotating speed 700 revs/min of current protection wind shelves.Now the running current of the compressor of air-conditioner can obviously reduce.Such as outdoor dry-bulb temperature 43 DEG C; outdoor wet-bulb temperature 32 DEG C; Indoor Dry bulb temperature 32 DEG C; under the operating mode that indoor wet-bulb temperatures is 23 DEG C; when indoor fan rotating speed is reduced to 700 revs/min by 1200 revs/min; the running current of compressor can reduce about 1.5A, can effectively reduce the running current of air-conditioner, or reduces and avoid too high due to temperature and the air-conditioner current protection that causes is shut down.
When electric current be reduced to be less than or equal to 6A time, exit current protection, the rotating speed of indoor fan reverts to 1200 revs/min by 700 revs/min.
According to the air-conditioner of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a control method for air-conditioner, is characterized in that, comprises the steps:
S1: under cooling operation mode, detects running time and the running current of the compressor of described air-conditioner;
S2: the running current of the described compressor detected and the first predetermined value are compared;
S3: when detecting that the running current of described compressor is more than or equal to the first predetermined value, the rotating speed controlling the indoor fan of described air-conditioner is reduced to desired speed by the rotating speed of current wind shelves, when detecting that the running current of described compressor is less than the first predetermined value, get back to step S2, wherein, described desired speed is less than the rotating speed of the low wind shelves of described air-conditioner.
2. the control method of air-conditioner according to claim 1, is characterized in that, also comprises the steps:
S4: in the process that described indoor fan rotates with desired speed, the running current of the compressor detected and the second predetermined value are compared;
S5: when detect the running current of described compressor be reduced to be less than or equal to the second predetermined value time, the rotating speed of the wind shelves before the rotating speed controlling the indoor fan of described air-conditioner is risen to by desired speed, get back to step S2, when detecting that the running current of described compressor is greater than the second predetermined value, get back to step S4.
3. the control method of air-conditioner according to claim 2, is characterized in that, also comprises the steps:
S6: in the running of described compressor, compares the running current of the described compressor detected and the 3rd predetermined value;
S7: when detecting that the running current of described compressor is more than or equal to the 3rd predetermined value and continued for first scheduled time, then control described compressor out of service, wherein, described 3rd predetermined value is greater than the first predetermined value.
4. the control method of air-conditioner according to claim 3, is characterized in that, described first scheduled time is 5 minutes.
5. the control method of air-conditioner according to claim 3, is characterized in that, also comprises the steps:
S8: in the running of described compressor, compares the running current of the described compressor detected and the 4th predetermined value;
S9: when detecting that the running current of described compressor is more than or equal to the 4th predetermined value and continued for second scheduled time, then control described compressor out of service, wherein, described 4th predetermined value is greater than the 3rd predetermined value, and described second scheduled time is less than described first scheduled time.
6. the control method of air-conditioner according to claim 5, is characterized in that, described second scheduled time was 5 seconds.
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| CN201310248544.5A CN104236010B (en) | 2013-06-20 | 2013-06-20 | Control method of air conditioner |
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| CN105258301A (en) * | 2015-11-17 | 2016-01-20 | 广东美的制冷设备有限公司 | Air-conditioner and control method and device for compressor in air-conditioner |
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