CN104633847A - Application method and device for air conditioner protection circuit - Google Patents
Application method and device for air conditioner protection circuit Download PDFInfo
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- CN104633847A CN104633847A CN201410848771.6A CN201410848771A CN104633847A CN 104633847 A CN104633847 A CN 104633847A CN 201410848771 A CN201410848771 A CN 201410848771A CN 104633847 A CN104633847 A CN 104633847A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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Abstract
The invention provides an application method and device for an air conditioner protection circuit. The method comprises the steps of detecting the temperature of a functional module to be protected in an air conditioner; conducting protection when the detected temperature value is larger than a preset temperature threshold, wherein protection is conducted in at least one of the three aspects, namely setting the wind speed of an outdoor fan of the air conditioner to be high, limiting the operation frequency of the air conditioner, and controlling a compressor of the air conditioner to stop. By the adoption of the method, temperature protection effect can be improved.
Description
Technical field
The present invention relates to technical field of household appliance manufacture, particularly relate to a kind of implementation method and device of air conditioner protection circuit.
Background technology
Outdoor fan in existing air-conditioner, owing to being in outdoor, is easily affected by the external environment.The power consumption of the high power module in outdoor fan itself is just very large, if under being also in summer high-temperature environment, will producing a lot of heats, in order to protect the components and parts in high power module, needing to carry out temperature protection to high power module.
At present, the method for conventional temperature protection adds radiator on high power module, but adopt radiator fully to lower the temperature when temperature is higher, therefore, this mode temperature protection effect is not ideal enough.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.
For this reason, one object of the present invention is the implementation method proposing a kind of air conditioner protection circuit, and the method can improve temperature protection effect.
Another object of the present invention is the implement device proposing a kind of air conditioner protection circuit.
For achieving the above object, the implementation method of the air conditioner protection circuit that first aspect present invention embodiment proposes, comprising: the temperature detecting the functional module will protected in air-conditioning; When the temperature of described detection is greater than default temperature threshold; carry out conservation treatment; described conservation treatment comprises at least one item in following item: the wind speed of the outdoor fan of air-conditioner is set as high wind, limits the running frequency of air-conditioner, controls air-conditioner and to stop using compressor.
The implementation method of the air conditioner protection circuit that first aspect present invention embodiment proposes; by detecting the temperature of the functional module will protected in air-conditioning; and carry out conservation treatment according to temperature, different conservation treatment means can be carried out according to the difference of temperature, thus improve temperature protection effect.
For achieving the above object, the implement device of the air conditioner protection circuit that second aspect present invention embodiment proposes, comprising: first detection module, for detecting the temperature of the functional module will protected in air-conditioning; Protection module; for when the temperature of described detection is greater than default temperature threshold, carry out conservation treatment, described conservation treatment comprises at least one item in following item: the wind speed of the outdoor fan of air-conditioner is set as high wind; limit the running frequency of air-conditioner, control air-conditioner and to stop using compressor.
The implement device of the air conditioner protection circuit that second aspect present invention embodiment proposes; by detecting the temperature of the functional module will protected in air-conditioning; and carry out conservation treatment according to temperature, different conservation treatment means can be carried out according to the difference of temperature, thus improve temperature protection effect.
The aspect that the present invention adds 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
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic flow sheet of the implementation method of the air conditioner protection circuit that one embodiment of the invention proposes;
Fig. 2 is the composition structural representation of air conditioner protection circuit in the embodiment of the present invention;
Fig. 3 is the schematic diagram of air-blower control when compressor normally runs in the embodiment of the present invention;
Fig. 4 is the schematic diagram of air-blower control when compressor normally runs in the embodiment of the present invention and FREQUENCY CONTROL;
Air-blower control schematic diagram when Fig. 5 a is a kind of compressor out of service in the embodiment of the present invention;
Air-blower control schematic diagram when Fig. 5 b is another kind of compressor out of service in the embodiment of the present invention;
Fig. 6 is the schematic flow sheet of the implementation method of the air conditioner protection circuit that another embodiment of the present invention proposes;
Fig. 7 is the structural representation of the implement device of the air conditioner protection circuit that another embodiment of the present invention proposes;
Fig. 8 is the structural representation of the implement device of the air conditioner protection circuit that another embodiment of the present invention proposes.
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.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
Fig. 1 is the schematic flow sheet of the implementation method of the air conditioner protection circuit that one embodiment of the invention proposes, and the method comprises:
S11: the temperature detecting the functional module will protected in air-conditioning.
The functional module protected can pre-set, and such as, the functional module that protect is the SPM (Intelligent Power Module, IPM) in air-conditioner.
IPM is the high power device being used for driving compressor operating in air-conditioner.
Generally, IPM upper meeting set temperature sensor, can detect the temperature of IPM by this temperature sensor.
Particularly, see Fig. 2, the module realizing the method can be called air conditioner protection circuit, air conditioner protection circuit can comprise temperature detecting module 21, fan control module 22 and frequency control module 23, IPM for the functional module that will protect, temperature detecting module 21 is for detecting the temperature of IPM, fan control module 22 is for controlling the wind speed of the outdoor fan of air-conditioner according to the temperature detected, frequency control module 23 is for controlling the running frequency of air-conditioner or controlling compressor shutdown according to the temperature detected, running frequency refers to the running frequency of compressor.
S12: when the temperature of described detection is greater than default temperature threshold; carry out conservation treatment; described conservation treatment comprises at least one item in following item: the wind speed of the outdoor fan of air-conditioner is set as high wind, limits the running frequency of air-conditioner, controls air-conditioner and to stop using compressor.
Wherein, the temperature detected when the temperature of detection can be compressor operating, or the temperature of detection also can be the temperature that compressor detects when stopping using.
The temperature detected can represent with T (ipm).
In an embodiment, during the temperature detected when the temperature detected is compressor operating, optionally, when the described temperature in described detection is greater than default temperature threshold, carries out conservation treatment, comprising:
When the temperature of described detection is greater than the first default temperature threshold, the wind speed of the outdoor fan of air-conditioner is set as high wind;
Wherein, the first temperature threshold can represent with T1.
Such as; see Fig. 3; as T (ipm) >T1; when being namely in the high wind region of pressure, the fan control module in air conditioner protection circuit carries out protection, and the wind speed of the outdoor fan of air-conditioner is set to high wind; mandatory means specifically can be adopted to realize; namely no matter current wind speed is high wind, or low wind, and the wind speed of the outdoor fan of air-conditioner is all set to high wind.With the temperature of this control IPM, make the temperature of IPM unlikely too high, reach radiating effect.
In addition, it should be noted that, the high wind arranged in the present embodiment refers to the highest wind velocity that air-conditioning can reach, the high wind that specifically can correspondingly usually adopt or superelevation wind.
Be set to high wind above by by the wind speed of outdoor fan, the temperature of IPM can be reduced to a certain extent, but, under some scenes, when the temperature of IPM can not be stoped to continue to rise by arranging high wind, can also perform:
When the temperature of described detection is greater than the second default temperature threshold, the running frequency of air-conditioner is adjusted to raising frequency at a slow speed;
Wherein, the second temperature threshold can represent with T2, and T2 is greater than T1.
Such as; see Fig. 4; as T (ipm) >T2; namely raising frequency region is at a slow speed in; frequency control module in air conditioner protection circuit carries out protection, and the running frequency of air-conditioner is adjusted to raising frequency at a slow speed, such as; the initial raising frequency speed of air-conditioner is 1HZ/S, then the raising frequency speed after adjustment is 0.2HZ/S.By reducing the frequency rate of climb, can reduce the rate of rise in temperature of air-conditioner, control temperature rises to a certain extent.
If after reducing raising frequency speed, the temperature of IPM continues to rise, and the method can also perform:
When the temperature of described detection is greater than the 3rd default temperature threshold, the running frequency of air-conditioner is set to maximum frequency of operation;
Wherein, the 3rd temperature threshold can represent with T3, and T3 is greater than T2.
Such as, see Fig. 4, as T (ipm) >T3, be namely in limit frequency domain, the frequency control module in air conditioner protection circuit carries out protection, and the running frequency of air-conditioner is set to maximum frequency of operation.By running frequency is limited to maximum frequency of operation, can ensure that running frequency keeps dropping within the specific limits, stop the temperature of IPM to rise as far as possible.
If after restriction maximum frequency of operation, the temperature of IPM continues to rise, and the method can also perform:
When the temperature of described detection is greater than the 4th default temperature threshold, controls air-conditioner and to stop using compressor;
Wherein, the 4th temperature threshold can represent with T4, and T4 is greater than T3.
Such as; see Fig. 4; as T (ipm) >T4; namely be in stop area, the frequency control module in air conditioner protection circuit carries out protection, and controls compressor shutdown; such as; frequency control module is to compressor sending controling instruction, and control instruction is used to indicate compressor shutdown, and compressor is shut down according to control instruction.After compressor shutdown, the temperature of IPM can decline thereupon, after the temperature of IPM drops to another threshold value, can restart IPM.
Be understandable that; as T (ipm) >T1; when frequency control module performs defencive function; blast velocity control module can keep the high wind arranged always; such as; during T (ipm) >T2, not only running frequency is adjusted to raising frequency at a slow speed by frequency control module, and blast velocity control module also keeps high wind always.
In addition, can detected temperatures in real time when temperature detection, when the wind speed of outdoor fan is set to Gao Fenghou by blast velocity control module, if when detecting that temperature is less than the 5th default temperature threshold, the operating air velocity of the outdoor fan of air-conditioner can be recovered.
Such as, see Fig. 3, the 5th default temperature threshold can represent with T5, and T5<T1.As T (ipm) <T5, when being namely in normal operating zone, the operating air velocity of outdoor fan can be recovered, such as, return to low wind from high wind.By arranging T5 instead of just recover low wind when as T (ipm) <T1, air-conditioner can be avoided to switch back and forth at low wind and Gao Fengzhong, improve user's comfortableness.
In another embodiment, when detect temperature be compressor stop using time detect temperature time, optionally, when the described temperature in described detection is greater than default temperature threshold, carries out conservation treatment, comprising:
When the temperature of described detection is greater than the 6th default temperature threshold, described air-conditioner is kept to stop using compressor, and, the wind speed of the outdoor fan of air-conditioner is set as high wind, and keep high wind state until the temperature again detected is less than described 6th temperature threshold, or, reach default duration threshold.
Such as, the 6th temperature threshold preset can represent with T6.
In fig 5 a, A represents that compressor stops the wind speed of front outdoor fan; B represents to be forced to be set to high wind by the wind speed of outdoor fan, and wherein, high wind is broad sense, comprises common high wind or superelevation wind; C represents stopping outdoor fan; D represents T (ipm) curve over time; T represents high wind state duration threshold value.See Fig. 5 a; before compressor shutdown; (A) is run according to the wind speed before shutting down; after compressor shutdown; if the temperature T detected (ipm) >T6, then wind speed can be forced to be set to high wind (B), until T (ipm) equals T6; as T (ipm) <T6, blower fan (C) can be stopped.
In figure 5b, A ' represents that compressor stops the wind speed of front outdoor fan; B ' represents to be forced to be set to high wind by the wind speed of outdoor fan, and wherein, high wind is broad sense, comprises common high wind or superelevation wind; C ' represents stopping outdoor fan; D ' represents T (ipm) curve over time; T represents high wind state duration threshold value.See Fig. 5 b; before compressor shutdown; (A ') is run according to the wind speed before shutting down; after compressor shutdown; if the temperature T detected (ipm) >T6, then wind speed can be forced be set to high wind (B '), until duration t reaches predetermined threshold value; when the duration reaches predetermined threshold value t, blower fan (C ') can be stopped.
The present embodiment by detecting the temperature of the functional module will protected in air-conditioning, and carries out conservation treatment according to temperature, can carry out different conservation treatment means according to the difference of temperature, thus improves temperature protection effect.
Fig. 6 is the schematic flow sheet of the implementation method of the air conditioner protection circuit that another embodiment of the present invention proposes, and the present embodiment is IPM for the functional module that will protect.The method comprises:
S601: the temperature detecting IPM in air-conditioner.
IPM is the high power device being used for driving compressor operating in air-conditioner.
Generally, IPM upper meeting set temperature sensor, can detect the temperature of IPM by this temperature sensor.
Particularly, see Fig. 2, the module realizing the method can be called air conditioner protection circuit, air conditioner protection circuit can comprise temperature detecting module 21, fan control module 22 and frequency control module 23, IPM for the functional module that will protect, temperature detecting module 21 is for detecting the temperature of IPM, fan control module 22 is for controlling the wind speed of the outdoor fan of air-conditioner according to the temperature detected, frequency control module 23 is for controlling the running frequency of air-conditioner according to the temperature detected, running frequency refers to the running frequency of compressor, or, control compressor shutdown.
The temperature detected can represent with T (ipm).
S602: judge that the compressor of air-conditioner is current and whether stop using, if so, perform S611, otherwise, perform S603.
S603: judge whether T (ipm) is greater than the first default temperature threshold, if so, then performs step S604, otherwise performs step S614.
Such as, for the IPM of air-conditioner in the present embodiment, the first default temperature threshold T1 can be 70 degree, therefore, when occurring that T (ipm) temperature is greater than 70 degree, performs step S604.
S604: the outdoor fan wind speed of air-conditioner is set as high wind.
When occurring that T (ipm) temperature is greater than 70 degree; the outdoor fan wind speed of air-conditioner is set to high wind by the fan control module in air conditioner protection circuit, and the concrete mandatory means that can adopt realize, such as; no matter air-conditioning is current is high wind or low wind, be all set to high wind.In addition, it should be noted that, the high wind arranged in the present embodiment refers to the highest wind velocity that air-conditioning can reach, and the high wind that specifically can correspondingly usually adopt or superelevation wind, with the temperature of this control IPM, make the temperature of IPM unlikely too high, reach radiating effect.
S605: judge whether T (ipm) is greater than the second default temperature threshold, if so, then performs step S606, otherwise performs step S614.
In the present embodiment, the second temperature threshold T2 preset can be 75 degree.
When T (ipm) is greater than 75 degree, perform step S606.
S606: the running frequency of air-conditioner is adjusted to raising frequency at a slow speed.
When T (ipm) is greater than 75 degree, the raising frequency speed of the running frequency of compressor slows down by frequency control module, such as, raising frequency speed is under normal circumstances 1Hz/S, the raising frequency speed after slowing down by for 0.2Hz/S or other be conducive to the stable frequency of air-conditioner.
S607: judge whether T (ipm) is greater than the 3rd default temperature threshold, if so, then performs step S608, otherwise performs step S614.
In the present embodiment, the 3rd temperature threshold T3 preset can be 80 degree.
When T (ipm) is greater than 80 degree, perform step S608.
S608: the outdoor running frequency of air-conditioner is set to maximum frequency of operation.
When T (ipm) is greater than 80 degree, the compressor operating frequency of restriction air-conditioner continues to rise by frequency control module, and current running frequency is set to maximum frequency of operation.In such cases, the frequency reducing that the running frequency of air-conditioner can only cause due to other reasons and can not raising frequency, until T (ipm) temperature drops to less than 80 degree.
S609: judge whether T (ipm) is greater than the 4th default temperature threshold, if so, then performs step S610, otherwise performs step S614.
In the present embodiment, the 4th temperature threshold T4 preset can be 90 degree.
When T (ipm) is greater than 90 degree, perform step S610.
S610: control air-conditioner and to stop using compressor.
When T (ipm) be raised to be greater than 90 degree time, then air-conditioner immediately stop using compressor.
Optionally, when T (ipm) temperature drops to below 75 degree, compressor can be restarted.
S611: judge whether T (ipm) is greater than the 7th default temperature threshold, if so, performs S612, otherwise, perform S613.
7th temperature threshold is such as 80 degree.
S612: do not carry out temperature protection.
The situation of certain temperature drift can be there is in temperature sensor itself; so just occur that detected temperatures reaches more than 80 degree when air-conditioner has just powered on to start shooting; then can think the problem of drift of temperature sensor itself; if when continuing to keep temperature protection function effective; frequency reducing and blower fan misoperation by mistake can be caused; so now can not carry out temperature protection, set temperature defencive function is invalid.
S613: judge whether T (ipm) is greater than the 6th default temperature threshold, if so, then performs step S615, otherwise performs step S614.
In the present embodiment, the 6th temperature threshold T6 preset can be 70 degree.
When T (ipm) is greater than 70 degree, perform step S615.
S614: keep current state.
Such as, keep current wind speed or running frequency, and detect the temperature of IPM in real time.
In addition, it should be noted that, when T (ipm) is greater than T1, is all keep high wind state.
Optionally, when T (ipm) <T5 recovers the operating air velocity of the outdoor fan of air-conditioner.
S615: the outdoor fan wind speed of air-conditioner is set as high wind, and the temperature detecting IPM in air-conditioner in real time.
When T (ipm) is greater than 70 degree, described air-conditioner is kept to stop using compressor, and, the outdoor fan wind speed of air-conditioner is set as high wind, and keep high wind state until the temperature again detected is less than described 6th temperature threshold, or, reach default duration threshold.
S616: the temperature again detected is less than the 6th default temperature threshold, or, when the high wind duration reaches default duration threshold, stop blowing high wind.
In the present embodiment, the 6th temperature threshold preset can be 70 degree.The duration threshold preset can be 2 minutes.
Such as, keep high wind state until T (ipm) is less than 70 degree, or, keep high wind state until the duration reaches 2 minutes.
The present embodiment by detecting the temperature of the functional module will protected in air-conditioning, and carries out conservation treatment according to temperature, can carry out different conservation treatment means according to the difference of temperature, thus improves temperature protection effect.In addition, the present embodiment can select each temperature threshold according to actual conditions, practical requirement.
Fig. 7 is the structural representation of the implement device of the air conditioner protection circuit that another embodiment of the present invention proposes, and this device 70 comprises first detection module 71 and protection module 72.
First detection module 71, for detecting the temperature of the functional module will protected in air-conditioning.
The functional module protected can pre-set, and such as, the functional module that protect is the SPM (Intelligent Power Module, IPM) in air-conditioner.
IPM is the high power device being used for driving compressor operating in air-conditioner.
Generally, IPM upper meeting set temperature sensor, can detect the temperature of IPM by this temperature sensor.
Particularly, see Fig. 2, the module realizing the method can be called air conditioner protection circuit, air conditioner protection circuit can comprise temperature detecting module 21, fan control module 22 and frequency control module 23, IPM for the functional module that will protect, temperature detecting module 21 is for detecting the temperature of IPM, fan control module 22 is for controlling the wind speed of the outdoor fan of air-conditioner according to the temperature detected, frequency control module 23 is for controlling the running frequency of air-conditioner or controlling compressor shutdown according to the temperature detected, running frequency refers to the running frequency of compressor.
Protection module 72; for when the temperature of described detection is greater than default temperature threshold, carry out conservation treatment, described conservation treatment comprises at least one item in following item: the wind speed of the outdoor fan of air-conditioner is set as high wind; limit the running frequency of air-conditioner, control air-conditioner and to stop using compressor.
Wherein, the temperature detected when the temperature of detection can be compressor operating, or the temperature of detection also can be the temperature that compressor detects when stopping using.
The temperature detected can represent with T (ipm).
In an embodiment, the temperature detected when the temperature of described detection is compressor operating, described protection module 72 specifically for:
When the temperature of described detection is greater than the first default temperature threshold, the wind speed of the outdoor fan of air-conditioner is set as high wind;
Wherein, the first temperature threshold can represent with T1.
Such as; see Fig. 3; as T (ipm) >T1; when being namely in the high wind region of pressure, the fan control module in air conditioner protection circuit carries out protection, and the wind speed of the outdoor fan of air-conditioner is set to high wind; mandatory means specifically can be adopted to realize; namely no matter current wind speed is high wind, or low wind, and the wind speed of the outdoor fan of air-conditioner is all set to high wind.With the temperature of this control IPM, make the temperature of IPM unlikely too high, reach radiating effect.
In addition, it should be noted that, the high wind arranged in the present embodiment refers to the highest wind velocity that air-conditioning can reach, the high wind that specifically can correspondingly usually adopt or superelevation wind.
Be set to high wind above by by the wind speed of outdoor fan, the temperature of IPM can be reduced to a certain extent, but, under some scenes, when the temperature of IPM can not be stoped to continue to rise by arranging high wind, can also perform:
When the temperature of described detection is greater than the second default temperature threshold, the running frequency of air-conditioner is adjusted to raising frequency at a slow speed;
Wherein, the second temperature threshold can represent with T2, and T2 is greater than T1.
Such as; see Fig. 4; as T (ipm) >T2; namely raising frequency region is at a slow speed in; frequency control module in air conditioner protection circuit carries out protection, and the running frequency of air-conditioner is adjusted to raising frequency at a slow speed, such as; the initial raising frequency speed of air-conditioner is 1HZ/S, then the raising frequency speed after adjustment is 0.2HZ/S.By reducing the frequency rate of climb, can reduce the rate of rise in temperature of air-conditioner, control temperature rises to a certain extent.
If after reducing raising frequency speed, the temperature of IPM continues to rise, and the method can also perform:
When the temperature of described detection is greater than the 3rd default temperature threshold, the running frequency of air-conditioner is set to maximum frequency of operation;
Wherein, the 3rd temperature threshold can represent with T3, and T3 is greater than T2.
Such as, see Fig. 4, as T (ipm) >T3, be namely in limit frequency domain, the frequency control module in air conditioner protection circuit carries out protection, and the running frequency of air-conditioner is set to maximum frequency of operation.By running frequency is limited to maximum frequency of operation, can ensure that running frequency keeps dropping within the specific limits, stop the temperature of IPM to rise as far as possible.
If after restriction maximum frequency of operation, the temperature of IPM continues to rise, and the method can also perform:
When the temperature of described detection is greater than the 4th default temperature threshold, controls air-conditioner and to stop using compressor;
Wherein, the 4th temperature threshold can represent with T4, and T4 is greater than T3.
Such as; see Fig. 4; as T (ipm) >T4; namely be in stop area, the frequency control module in air conditioner protection circuit carries out protection, and controls compressor shutdown; such as; frequency control module is to compressor sending controling instruction, and control instruction is used to indicate compressor shutdown, and compressor is shut down according to control instruction.After compressor shutdown, the temperature of IPM can decline thereupon, after the temperature of IPM drops to another threshold value, can restart IPM.
In another embodiment, see Fig. 8, described device 70 also comprises:
Second detection module 73, for again detecting the temperature of the functional module that will protect;
Recover module 74, for when the described temperature again detected is less than the 5th default temperature threshold, recover the wind speed of the outdoor fan of air-conditioner;
Wherein, the first temperature threshold described in described 5th temperature threshold <.
Be understandable that; as T (ipm) >T1; when frequency control module performs defencive function; blast velocity control module can keep the high wind arranged always; such as; during T (ipm) >T2, not only running frequency is adjusted to raising frequency at a slow speed by frequency control module, and blast velocity control module also keeps high wind always.
In addition, can detected temperatures in real time when temperature detection, when the wind speed of outdoor fan is set to Gao Fenghou by blast velocity control module, if when detecting that temperature is less than the 5th default temperature threshold, the operating air velocity of the outdoor fan of air-conditioner can be recovered.
Such as, see Fig. 3, the 5th default temperature threshold can represent with T5, and T5<T1.As T (ipm) <T5, when being namely in normal operating zone, the operating air velocity of outdoor fan can be recovered, such as, return to low wind from high wind.By arranging T5 instead of just recover low wind when as T (ipm) <T1, air-conditioner can be avoided to switch back and forth at low wind and Gao Fengzhong, improve user's comfortableness.
In another embodiment, see Fig. 8, the temperature of described detection is the temperature that compressor detects when stopping using, and described device 70 also comprises:
Keep module 75, during for being greater than the 6th default temperature threshold in the temperature of described detection, described air-conditioner is kept to stop using compressor, and, the wind speed of the outdoor fan of air-conditioner is set as high wind, and keep high wind state until the temperature again detected is less than described 6th temperature threshold, or, reach default duration threshold.
Such as, the 6th temperature threshold preset can represent with T6.
In fig 5 a, A represents that compressor stops the wind speed of front outdoor fan; B represents to be forced to be set to high wind by the wind speed of outdoor fan, and wherein, high wind is broad sense, comprises common high wind or superelevation wind; C represents stopping outdoor fan; D represents T (ipm) curve over time; T represents high wind state duration threshold value.See Fig. 5 a; before compressor shutdown; (A) is run according to the wind speed before shutting down; after compressor shutdown; if the temperature T detected (ipm) >T6, then wind speed can be forced to be set to high wind (B), until T (ipm) equals T6; as T (ipm) <T6, blower fan (C) can be stopped.
In figure 5b, A ' represents that compressor stops the wind speed of front outdoor fan; B ' represents to be forced to be set to high wind by the wind speed of outdoor fan, and wherein, high wind is broad sense, comprises common high wind or superelevation wind; C ' represents stopping outdoor fan; D ' represents T (ipm) curve over time; T represents high wind state duration threshold value.See Fig. 5 b; before compressor shutdown; (A ') is run according to the wind speed before shutting down; after compressor shutdown; if the temperature T detected (ipm) >T6, then wind speed can be forced be set to high wind (B '), until duration t reaches predetermined threshold value; when the duration reaches predetermined threshold value t, blower fan (C ') can be stopped.
In another embodiment, see Fig. 8, the temperature of described detection is the temperature that compressor detects when stopping using, and described device 70 also comprises:
Processing module 76, if be greater than the 7th default temperature threshold for the temperature of described detection, does not carry out described conservation treatment.
The present embodiment by detecting the temperature of the functional module will protected in air-conditioning, and carries out conservation treatment according to temperature, can carry out different conservation treatment means according to the difference of temperature, thus improves temperature protection effect.
It should be noted that, in describing the invention, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " 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 above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. an implementation method for air conditioner protection circuit, is characterized in that, comprising:
Detect the temperature of the functional module will protected in air-conditioning;
When the temperature of described detection is greater than default temperature threshold; carry out conservation treatment; described conservation treatment comprises at least one item in following item: the wind speed of the outdoor fan of air-conditioner is set as high wind, limits the running frequency of air-conditioner, controls air-conditioner and to stop using compressor.
2. method according to claim 1, is characterized in that, the temperature detected when the temperature of described detection is compressor operating, when the described temperature in described detection is greater than default temperature threshold, carries out conservation treatment, comprising:
When the temperature of described detection is greater than the first default temperature threshold, the wind speed of the outdoor fan of air-conditioner is set as high wind;
When the temperature of described detection is greater than the second default temperature threshold, the running frequency of air-conditioner is adjusted to raising frequency at a slow speed;
When the temperature of described detection is greater than the 3rd default temperature threshold, the running frequency of air-conditioner is set to maximum frequency of operation;
When the temperature of described detection is greater than the 4th default temperature threshold, controls air-conditioner and to stop using compressor;
Wherein, the 4th temperature threshold described in the 3rd temperature threshold < described in the second temperature threshold < described in described first temperature threshold <.
3. method according to claim 2, is characterized in that, after the described wind speed by the outdoor fan of air-conditioner is set as high wind, described method also comprises:
Again detect the temperature of the functional module that will protect;
When the described temperature again detected is less than the 5th default temperature threshold, recover the wind speed of the outdoor fan of air-conditioner;
Wherein, the first temperature threshold described in described 5th temperature threshold <.
4. method according to claim 1, is characterized in that, the temperature of described detection is the temperature that compressor detects when stopping using, and when the described temperature in described detection is greater than default temperature threshold, carries out conservation treatment, comprising:
When the temperature of described detection is greater than the 6th default temperature threshold, described air-conditioner is kept to stop using compressor, and, the wind speed of the outdoor fan of air-conditioner is set as high wind, and keep high wind state until the temperature again detected is less than described 6th temperature threshold, or, reach default duration threshold.
5. method according to claim 1, is characterized in that, the temperature of described detection is the temperature that compressor detects when stopping using, and after the temperature of the functional module will protected in described detection air-conditioning, described method also comprises:
If the temperature of described detection is greater than the 7th default temperature threshold, do not carry out described conservation treatment.
6. an implement device for air conditioner protection circuit, is characterized in that, comprising:
First detection module, for detecting the temperature of the functional module will protected in air-conditioning;
Protection module; for when the temperature of described detection is greater than default temperature threshold, carry out conservation treatment, described conservation treatment comprises at least one item in following item: the wind speed of the outdoor fan of air-conditioner is set as high wind; limit the running frequency of air-conditioner, control air-conditioner and to stop using compressor.
7. device according to claim 6, is characterized in that, the temperature detected when the temperature of described detection is compressor operating, described protection module specifically for:
When the temperature of described detection is greater than the first default temperature threshold, the wind speed of the outdoor fan of air-conditioner is set as high wind;
When the temperature of described detection is greater than the second default temperature threshold, the running frequency of air-conditioner is adjusted to raising frequency at a slow speed;
When the temperature of described detection is greater than the 3rd default temperature threshold, the running frequency of air-conditioner is set to maximum frequency of operation;
When the temperature of described detection is greater than the 4th default temperature threshold, controls air-conditioner and to stop using compressor;
Wherein, the 4th temperature threshold described in the 3rd temperature threshold < described in the second temperature threshold < described in described first temperature threshold <.
8. device according to claim 7, is characterized in that, described device also comprises:
Second detection module, for again detecting the temperature of the functional module that will protect;
Recover module, for when the described temperature again detected is less than the 5th default temperature threshold, recover the wind speed of the outdoor fan of air-conditioner;
Wherein, the first temperature threshold described in described 5th temperature threshold <.
9. device according to claim 6, is characterized in that, the temperature of described detection is the temperature that compressor detects when stopping using, and described device also comprises:
Keep module, during for being greater than the 6th default temperature threshold in the temperature of described detection, described air-conditioner is kept to stop using compressor, and, the wind speed of the outdoor fan of air-conditioner is set as high wind, and keep high wind state until the temperature again detected is less than described 6th temperature threshold, or, reach default duration threshold.
10. the device according to any one of claim 6, is characterized in that, the temperature of described detection is the temperature that compressor detects when stopping using, and described device also comprises:
Processing module, if be greater than the 7th default temperature threshold for the temperature of described detection, does not carry out described conservation treatment.
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