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CN106440252A - Air conditioner protecting method, protecting system and air conditioner - Google Patents

Air conditioner protecting method, protecting system and air conditioner Download PDF

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Publication number
CN106440252A
CN106440252A CN201610981998.7A CN201610981998A CN106440252A CN 106440252 A CN106440252 A CN 106440252A CN 201610981998 A CN201610981998 A CN 201610981998A CN 106440252 A CN106440252 A CN 106440252A
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China
Prior art keywords
temperature
default
air
relative humidity
preset
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Granted
Application number
CN201610981998.7A
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Chinese (zh)
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CN106440252B (en
Inventor
黄钊
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201610981998.7A priority Critical patent/CN106440252B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention especially relates to an air conditioner protecting method, a protecting system and an air conditioner. The air conditioner protecting method comprises the following steps: collecting preset parameters at an interval of a first preset time, wherein the preset parameters include a pipe temperature of a refrigerant radiating pipeline, an environment temperature of a refrigerant cooling device and a running mode of the air conditioner; acquiring a preset dew point temperature corresponding to the environment temperature and a preset condition corresponding to the running mode of the air conditioner; acquiring the time of the pipe temperature and the preset dew point temperature for continuously meeting the preset condition; controlling the air conditioner to halt and generating a fault signal when the time reaches the second preset time. According to the technical scheme provided by the invention, if an electric element on a driving plate of the air conditioner is under the dewing state can be accurately judged, and the air conditioner can be turned off in time when the electric element on the driving plate of the air conditioner is under the dewing state, so that the driving plate can be prevented from being burned under the dewing effect of the electric element.

Description

A kind of air-conditioner guard method, protection system and air-conditioner
Technical field
The present invention relates to airconditioning control field, particularly to a kind of air-conditioner guard method, protection system and air-conditioner.
Background technology
Air-conditioner of the prior art needs the operation to drive compressor or motor for the special drive control device, works as pressure When contracting machine or motor operation, the module of drive control device can produce heat, if this partial heat can not dissipate in time, can lead to Module temperature persistently rises, and causes module damage.Air-conditioner has wind to the type of cooling of drive control device or driving plate at present Cold and cold two kinds of liquid, air cooling module is cooled down using flow of outside air, cooling capacity with outside air temperature change and Gentle conversion, is less prone to condensation, but cooling capacity is relatively low, and liquid cooled module is cooled down using system hypothermia coolant, cooling Ability is larger, but there is also certain hidden danger, when such as refrigerant pipe temperature is less than air dew point temperature, easily in some electric components On uncover, burn out driving plate.
Content of the invention
The invention provides a kind of air-conditioner guard method, protection system and air-conditioner, solve prior art and adopt liquid The technical problem of driving plate is easily burnt out when chill block is cooled down.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:
According to one aspect of the present invention, there is provided a kind of air-conditioner guard method, comprise the following steps:
Step 1, gathers parameter preset at interval of the first Preset Time, and described parameter preset includes the pipe of coolant heat dissipation pipeline Ambient temperature at temperature, refrigerant cooling device and air conditioning operating mode;
Step 2, obtains default dew point temperature corresponding with described ambient temperature and corresponding with described air conditioning operating mode Pre-conditioned;
Step 3, gently described default dew point temperature persistently meets the described pre-conditioned time, when described to obtain described pipe When time reaches the second Preset Time, control air-conditioning to shut down and generate fault-signal.
According to another aspect of the present invention, additionally provide a kind of air-conditioner protection system, including control module, the first temperature Acquisition module, second temperature acquisition module and the refrigerant cooling device being arranged on coolant heat dissipation pipeline, described first temperature is adopted Collection module is arranged on described coolant heat dissipation pipeline, and described second temperature acquisition module is arranged on the outer of described refrigerant cooling device At shell,
Described first temperature collect module is used for gathering the Guan Wen of described coolant heat dissipation pipeline at interval of the first Preset Time;
Described second temperature acquisition module is used for gathering the ring at described refrigerant cooling device at interval of the first Preset Time Border temperature;
Described control module includes:
First acquisition unit, for obtaining air conditioning operating mode at interval of the first Preset Time;
Second acquisition unit, transports for acquisition default dew point temperature corresponding with described ambient temperature and with described air-conditioning Row mode is corresponding pre-conditioned;
Control unit, for when obtaining described pipe gently described default dew point temperature persistently meeting described pre-conditioned Between, when the described time reaching the second Preset Time, control air-conditioning to shut down and generate fault-signal.
In order to solve the technical problem of the present invention, additionally provide a kind of air-conditioner, including the protection of above-described air-conditioner System.
The invention has the beneficial effects as follows:Technical scheme can accurately judge the electric unit in air-conditioner driving plate Whether part is in condensation state, and closes air-conditioner in time, thus avoiding when the electrical equipment in air-conditioner driving plate condenses Burn driving plate because of electrical equipment condensation.
Brief description
Fig. 1 is a kind of schematic flow sheet of air-conditioner guard method provided in an embodiment of the present invention;
Fig. 2 is a kind of structural representation of air-conditioner protection system provided in an embodiment of the present invention;
Fig. 3 is the position view of the first temperature collecting device in a kind of air-conditioner protection system shown in Fig. 2;
Fig. 4 is the another location schematic diagram of the first temperature collecting device in a kind of air-conditioner protection system shown in Fig. 2;
Fig. 5 is a kind of structural representation of air-conditioner provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the principle of the present invention and feature are described, example is served only for explaining the present invention, and Non- for limiting the scope of the present invention.
Fig. 1 gives a kind of schematic flow sheet of air-conditioner guard method provided in an embodiment of the present invention, as shown in figure 1, Comprise the following steps:
Step 1, gathers parameter preset at interval of the first Preset Time, and described parameter preset includes the pipe of coolant heat dissipation pipeline Ambient temperature at temperature, refrigerant cooling device and air conditioning operating mode;
Step 2, obtains default dew point temperature corresponding with described ambient temperature and corresponding with described air conditioning operating mode Pre-conditioned;
Step 3, gently described default dew point temperature persistently meets the described pre-conditioned time, when described to obtain described pipe When time reaches the second Preset Time, control air-conditioning to shut down and generate fault-signal.
In the technical scheme of the embodiment of the present invention, the electricity in driving plate is judged by the pipe temperature gathering coolant heat dissipation pipeline Whether gas element is in condensation state, and for different air conditioning operating modes, such as air conditioner refrigerating pattern and air-conditioning heating Pattern is provided with different Rule of judgment, so that judged result is more targeted also more accurate.Meanwhile, the embodiment of the present invention Technical scheme also include judging that the gentle dew point temperature of managing of coolant heat dissipation pipeline persistently meets whether time of Rule of judgment reaches To the second Preset Time, only after reaching the second Preset Time, just judge that electrical equipment is in condensation state, control air-conditioning Shut down and generate fault-signal, thus avoiding the occurrence of erroneous judgement situation, more accurate to the control process of air-conditioner.The skill of the present invention Art scheme can accurately judge whether the electrical equipment in air-conditioner driving plate is in condensation state, and in air-conditioner driving plate Electrical equipment condensation when close air-conditioner in time, thus avoid because electrical equipment condensation and burn driving plate.
Alternatively, as one embodiment of the present of invention, described step 2 is specially:Corresponding by inquiring about default first Relation table, obtains under default relative humidity, the corresponding default dew point temperature of described ambient temperature, and by inquiring about default second Mapping table, obtains corresponding with described air conditioning operating mode pre-conditioned.Dew point temperature is that air is gentle in moisture content Under the conditions of pressure is all immovable, it is cooled to temperature during saturation, figuratively it is simply that when the vapor of in the air is changed into dewdrop Temperature.In the preferred embodiment, can set up and include ambient temperature, preset relatively in the test process before air-conditioning dispatches from the factory Humidity and the first mapping table of ambient temperature corresponding dew point temperature under this default relative humidity, in operation of air conditioner mistake Cheng Zhong, only with inquiring about described first mapping table, you can obtains ambient temperature corresponding dew point temperature under default relative humidity Spend.
Because at a temperature of equivalent environment, relative air humidity is higher, and corresponding dew point temperature is higher, is therefore setting up During one mapping table, corresponding dew point temperature value under a higher relative humidity can be taken as reference standard, such as to take phase It is dew point temperature value when 80% or 90% to humidity, if the pipe temperature of the coolant heat dissipation pipeline collecting meets relative humidity being Will not be condensed when 80% or 90% the condition of (air-conditioner need not be shut down), its necessarily also meet relative humidity less when will not condense The condition of (air-conditioner need not be shut down), if the electrical equipment that is, in driving plate is in the environment of relative humidity is 80% or 90% Do not condense, then identical in ambient temperature, when relative humidity is less than 80%, necessarily also will not condense.Adopt in this way The workload setting up the first mapping table can be reduced, while ensureing judged result accuracy, improve judging efficiency. In the same manner it is also possible in test process before air-conditioning dispatches from the factory, setting up and includes air conditioning operating mode and the pre-conditioned second correspondence Relation table, and described second mapping table is cured in operation program, by inquiring about the second mapping table, you can obtain Described allocation and transportation row mode is corresponding pre-conditioned.
Alternatively, as one embodiment of the present of invention, the first mapping table in described step 2 can include multiple Default rh value, and the corresponding default dew point temperature of each default rh value.Such as described first corresponding relation Table includes three default relative humiditys, and the respectively first default relative humidity, the second default relative humidity and the 3rd are default relative Humidity, the different default dew point temperature of correspondence under each default relative humidity;Determined described pre- by acquisition air-conditioning place to use If relative humidity, specially:Acquisition air-conditioning place to use, and obtain the relative humidity maximum of air-conditioning place to use, if described Relative humidity maximum is less than or equal to the first default relative humidity, then when inquiring about described first mapping table, described default Relative humidity value is the first default relative humidity;If described relative humidity maximum is more than the first default relative humidity and is less than Or when being equal to the second default relative humidity, then, when inquiring about described first mapping table, described default relative humidity value is the Two default relative humiditys;If described relative humidity maximum is more than the second default relative humidity and presets relative humidity less than the 3rd When, then when inquiring about described first mapping table, described default relative humidity value the 3rd presets relative humidity.Specific one In embodiment, the described first default relative humidity is 70%, and the described second default relative humidity is 80%, the described 3rd default phase It is 90% to humidity, described first mapping table is as shown in table 1 below,
Table 1 first mapping table
Table 1 includes three default relative humiditys, respectively 70%, 80% and 90%, and each default relative humidity corresponds to Different default dew point temperatures, determines described default relative humidity by obtaining air-conditioning place to use, concrete mode is:Obtain empty Tune place to use, and obtain the relative humidity maximum of air-conditioning place to use, if described relative humidity maximum is less than or equal to 70%, then, when inquiring about described first mapping table, described default relative humidity value is 70%;If described relative humidity is maximum When value is more than 70% and is less than or equal to 80%, then when inquiring about described first mapping table, described default relative humidity value For 80%;If described relative humidity maximum is more than 80% and is less than 90%, when inquiring about described first mapping table, institute Stating default relative humidity value is 90%;If described relative humidity maximum is more than 90%, inquire about the described first corresponding pass When being table, described default relative humidity value is 100%, and now corresponding dew point temperature is exactly described ambient temperature.Such as adopt The ambient temperature collecting is 10 DEG C, and air-conditioning is 75% using the relative humidity maximum on ground, and therefore default relative humidity can take 80%, that is, take the situation of somewhat severe point, by inquiry table 1, you can get corresponding default dew point temperature and be 6.7 DEG C.When So in other examples, can be according to practical situation to the first default relative humidity, the second default relative humidity and the 3rd Default relative humidity carries out value, and sets up the first new mapping table, such as takes 50%, 60% and 70% it is also possible to only Two default relative humiditys of setting, such as 80% and 90%, these technical schemes are all within protection scope of the present invention.
Alternatively, as in one embodiment of the present of invention, step 1, near room in described Guan Wenwei coolant heat dissipation pipeline The first pipe temperature of the pipeline of outer machine heat exchanger side, when air conditioning operating mode is refrigeration mode, described pre-conditioned be:Described One pipe temperature is less than or equal to described default dew point temperature and the difference of the first preset temperature, and the span of the first preset temperature is 2~10 DEG C, such as 3 DEG C, 4 DEG C, 7 DEG C, the span of described second Preset Time is 1~10min, such as 2 minutes or 5 points Clock.
When air conditioning operating mode is heating mode, described pre-conditioned it is:Described first pipe temperature is less than or equal to described pre- If dew point temperature and the sum of the second preset temperature, the span of the second preset temperature is 2~10 DEG C, such as 3 DEG C, 4 DEG C, 6 DEG C, The span of described second Preset Time is 1~10min, such as 2 minutes or 5 minutes.
Alternatively, as in an alternative embodiment of the invention, step 1, in described Guan Wenwei coolant heat dissipation pipeline away from The second pipe temperature of the pipeline of outdoor unit heat exchanger side, when air conditioning operating mode is for refrigeration mode, described pre-conditioned be:Institute State second pipe temperature and be less than or equal to described default dew point temperature and the sum of the 3rd preset temperature, the span of the 3rd preset temperature For 2~10 DEG C, such as 3 DEG C, 5 DEG C, 8 DEG C, the span of described second Preset Time is 1~10min, such as 3 minutes or 6 minutes.
When air conditioning operating mode is for heating mode, described pre-conditioned it is:Described second pipe temperature is less than or equal to described Default dew point temperature and the difference of the 4th preset temperature, the span of the 4th preset temperature is 2~10 DEG C, such as 3 DEG C, 5 DEG C, 8 DEG C, the span of described second Preset Time is 1~10min, such as 3 minutes or 6 minutes.
When air-conditioning adopts refrigeration mode, described first pipe temperature is more than described default dew point temperature and the first preset temperature During difference, the electronic component in driving plate is not easy to condense, and second pipe temperature is more than described default dew point temperature and the 3rd and presets Temperature and when, the electronic component in driving plate be not easy condense, this is because air-conditioning adopt refrigeration mode when, low temperature refrigerant is Enter from the pipeline near outdoor heat exchanger side, go out from the pipeline away from outdoor heat exchanger side, and in coolant heat dissipation pipeline Coolant needs to drive control device or driving plate radiating, and the therefore temperature of outlet side should be higher than the temperature of inlet side, and that is, the Two pipe temperature should be higher than first pipe temperature.When air-conditioning adopts heating mode, described first pipe temperature is more than described default dew point temperature With the second preset temperature and when, the electronic component in driving plate is not easy to condense, and second pipe temperature is more than described default dew point Temperature and the 4th preset temperature poor when, the electronic component in driving plate is not easy to condense, this is because air-conditioning is using heating mould During formula, low temperature refrigerant is to enter from the pipeline away from outdoor heat exchanger side, goes out from the pipeline near outdoor heat exchanger side, and cold Coolant in matchmaker's heat dissipation pipeline needs to drive control device or driving plate radiating, and therefore the temperature of outlet side should be higher than import The temperature of side, that is, first pipe temperature should be higher than second pipe temperature.
Above in association with Fig. 1, describe air-conditioner guard method according to embodiments of the present invention in detail, with reference to Fig. 2, in detail Thin description air-conditioner protection system according to embodiments of the present invention.
As shown in Fig. 2 being the structural representation of air-conditioner protection system provided in an embodiment of the present invention, including control mould Block, the first temperature collect module 101, second temperature acquisition module 102 and the coolant cooling dress being arranged on coolant heat dissipation pipeline Put, described first temperature collect module 101 is arranged on described coolant heat dissipation pipeline, and described second temperature acquisition module 102 sets Put at the shell of described refrigerant cooling device,
Described first temperature collect module 101 is used for gathering the pipe of described coolant heat dissipation pipeline at interval of the first Preset Time Temperature;
Described second temperature acquisition module 102 is used for gathering at described refrigerant cooling device at interval of the first Preset Time Ambient temperature;
Described control module includes:
First acquisition unit, for obtaining air conditioning operating mode at interval of the first Preset Time;
Second acquisition unit, transports for acquisition default dew point temperature corresponding with described ambient temperature and with described air-conditioning Row mode is corresponding pre-conditioned;
Control unit, for when obtaining described pipe gently described default dew point temperature persistently meeting described pre-conditioned Between, when the described time reaching the second Preset Time, control air-conditioning to shut down and generate fault-signal.
Alternatively, as one embodiment of the present of invention, described first temperature collect module 101 and second temperature gather mould Block 102 is temperature-sensitive bag, can accurately gather the pipe gently described coolant cooling of described coolant heat dissipation pipeline by temperature-sensitive bag Ambient temperature at device.
Alternatively, as one embodiment of the present of invention, described second acquisition unit is specifically for default by inquiring about First mapping table, obtains under default relative humidity, the corresponding default dew point temperature of described ambient temperature, and pre- by inquiry If the second mapping table, obtain corresponding with described air conditioning operating mode pre-conditioned.Described first mapping table can To include multiple default rh values, and the corresponding default dew point temperature of each default rh value, empty by obtaining Place to use is adjusted to determine described default relative humidity.Preferably, described first mapping table includes three default relative humiditys, It is respectively the first default relative humidity, the second default relative humidity and the 3rd default relative humidity, under each default relative humidity The different default dew point temperature of correspondence;Determine described default relative humidity by obtaining air-conditioning place to use, specially:Obtain empty Tune place to use, and obtain the relative humidity maximum of air-conditioning place to use, if described relative humidity maximum is less than or equal to First default relative humidity, then, when inquiring about described first mapping table, described default relative humidity value is the first default phase To humidity;If described relative humidity maximum is more than the first default relative humidity and presets relative humidity less than or equal to second When, then when inquiring about described first mapping table, described default relative humidity value is the second default relative humidity;If described phase Humidity maximum is preset with relative humidity and less than the 3rd during default relative humidity more than second, then inquire about the described first corresponding pass When being table, described default relative humidity value the 3rd presets relative humidity.In a specific embodiment, the described first default phase It is 70% to humidity, the described second default relative humidity is 80%, the described 3rd default relative humidity is 90%.
Alternatively, as one embodiment of the present of invention, described first temperature collect module 101 is arranged on described coolant and dissipates In pipe line on the pipeline 103 of outdoor heat exchanger 104 side, described outdoor heat exchanger 104 and described coolant heat dissipation pipeline Between be provided with throttling arrangement 105, described second temperature acquisition module 102 is arranged at the shell of described refrigerant cooling device 106, As shown in figure 3, when air conditioning operating mode is for refrigeration mode, described pre-conditioned it is:The Guan Wen of described pipeline 103 is less than or waits In the difference of described default dew point temperature and the first preset temperature, the span of the first preset temperature is 2~10 DEG C, such as 3 DEG C, 4 DEG C, 7 DEG C, the span of described second Preset Time is 1~10min, such as 2 minutes or 5 minutes.
When air conditioning operating mode is heating mode, described pre-conditioned it is:The Guan Wen of described pipeline 103 is less than or equal to institute State default dew point temperature and the sum of the second preset temperature, the span of the second preset temperature is 2~10 DEG C, such as 3 DEG C, 4 DEG C, 6 DEG C, the span of described second Preset Time is 1~10min, such as 2 minutes or 5 minutes.
Alternatively, as an alternative embodiment of the invention, described first temperature collect module 101 is arranged on described coolant On pipeline 107 away from the side of outdoor heat exchanger 104 in heat dissipation pipeline, described outdoor heat exchanger 104 and described coolant radiate It is provided with throttling arrangement 105, described second temperature acquisition module 102 is arranged on the outer of described refrigerant cooling device 106 between pipeline At shell, as shown in figure 4, when air conditioning operating mode is for refrigeration mode, described pre-conditioned it is:The Guan Wen little of described pipeline 107 In or be equal to sum of described default dew point temperature and the 3rd preset temperature, the span of the 3rd preset temperature is 2~10 DEG C, Such as 3 DEG C, 5 DEG C, 8 DEG C, the span of described second Preset Time is 1~10min, such as 3 minutes or 6 minutes.
When air conditioning operating mode is for heating mode, described pre-conditioned it is:The Guan Wen of described pipeline 107 is less than or equal to Described default dew point temperature and the difference of the 4th preset temperature, the span of the 4th preset temperature is 2~10 DEG C, such as 3 DEG C, 5 DEG C, 8 DEG C, the span of described second Preset Time is 1~10min, such as 3 minutes or 6 minutes.
The present invention also provides a kind of air-conditioner, as shown in figure 5, being the structural representation of air-conditioner, including any of the above institute The air-conditioner protection system stated.
Technical scheme can accurately judge whether the electrical equipment in air-conditioner driving plate is in condensation state, And the electrical equipment in air-conditioner driving plate closes air-conditioner when condensing in time, thus avoiding burning because of electrical equipment condensation Driving plate.
In describing the invention it is to be understood that term " first ", " second " are only used for describing purpose, and can not It is interpreted as indicating or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the One ", the feature of " second " can be expressed or implicitly include at least one this feature.In describing the invention, " multiple " It is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel Close and combine.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.

Claims (12)

1. a kind of air-conditioner guard method is it is characterised in that comprise the following steps:
Step 1, at interval of first Preset Time gather parameter preset, described parameter preset include coolant heat dissipation pipeline Guan Wen, Ambient temperature at refrigerant cooling device and air conditioning operating mode;
Step 2, obtains default dew point temperature corresponding with described ambient temperature and corresponding with described air conditioning operating mode pre- If condition;
Step 3, gently described default dew point temperature persistently meets the described pre-conditioned time, when the described time to obtain described pipe When reaching the second Preset Time, control air-conditioning to shut down and generate fault-signal.
2. air-conditioner guard method according to claim 1 is it is characterised in that in described step 2, default by inquiring about First mapping table, obtains the corresponding default dew point temperature of described ambient temperature under default relative humidity, and pre- by inquiry If the second mapping table, obtain corresponding with described air conditioning operating mode pre-conditioned.
3. air-conditioner guard method according to claim 2 is it is characterised in that in step 2, described first mapping table Including three default relative humiditys, the respectively first default relative humidity, the second default relative humidity and the 3rd are default relatively wet Degree, the different default dew point temperature of each default relative humidity correspondence;
Determine described default relative humidity by obtaining air-conditioning place to use:Obtain air-conditioning place to use, and obtain air-conditioning and use The relative humidity maximum in place, if described relative humidity maximum is less than or equal to the first default relative humidity, inquires about institute When stating the first mapping table, described default relative humidity value is the first default relative humidity;If described relative humidity is maximum Value is preset relative humidity and is then inquired about described first mapping table less than or equal to second during default relative humidity more than first When, described default relative humidity value is the second default relative humidity;If described relative humidity maximum is more than the second default phase To humidity and less than or equal to the 3rd during default relative humidity, then when inquiring about described first mapping table, described default relative Humidity value the 3rd presets relative humidity.
4. air-conditioner guard method according to claim 3 is it is characterised in that the described first default relative humidity is 70%, the described second default relative humidity is 80%, and the described 3rd default relative humidity is 90%.
5. according to the arbitrary described air-conditioner guard method of Claims 1 to 4 it is characterised in that in step 1, described Guan Wenwei Away from outdoor in the first pipe temperature of pipeline of outdoor unit heat exchanger side or coolant heat dissipation pipeline in coolant heat dissipation pipeline The second pipe temperature of the pipeline of machine heat exchanger side.
6. air-conditioner guard method according to claim 5 is it is characterised in that in described step 3, work as air conditioning operating mode For refrigeration mode, and during described Guan Wenwei first pipe temperature, described pre-conditioned it is:Described Guan Wen is less than or equal to described default dew Point temperature and the difference of the first preset temperature, the span of the first preset temperature is 2~10 DEG C, described second Preset Time Span is 1~10min;
When air conditioning operating mode is heating mode, and during described Guan Wenwei first pipe temperature, described pre-conditioned it is:Described Guan Wen little In or be equal to sum of described default dew point temperature and the second preset temperature, the span of the second preset temperature is 2~10 DEG C, institute The span stating the second Preset Time is 1~10min;
When air conditioning operating mode is refrigeration mode, and during described Guan Wenwei second pipe temperature, described pre-conditioned it is:Described Guan Wen little In or be equal to sum of described default dew point temperature and the 3rd preset temperature, the span of the 3rd preset temperature is 2~10 DEG C, institute The span stating the second Preset Time is 1~10min;
When air conditioning operating mode is heating mode, and during described Guan Wenwei second pipe temperature, described pre-conditioned it is:Described Guan Wen little In or be equal to the difference of described default dew point temperature and the 4th preset temperature, the span of the 4th preset temperature is 2~10 DEG C, The span of described second Preset Time is 1~10min.
7. a kind of air-conditioner protection system is it is characterised in that inclusion control module, the first temperature collect module, second temperature are adopted Collection module and the refrigerant cooling device being arranged on coolant heat dissipation pipeline, described first temperature collect module is arranged on described coolant On heat dissipation pipeline, described second temperature acquisition module is arranged at the shell of described refrigerant cooling device,
Described first temperature collect module is used for gathering the Guan Wen of described coolant heat dissipation pipeline at interval of the first Preset Time;
Described second temperature acquisition module is used for gathering the environment temperature at described refrigerant cooling device at interval of the first Preset Time Degree;
Described control module includes:
First acquisition unit, for obtaining air conditioning operating mode at interval of the first Preset Time;
Second acquisition unit, for obtain default dew point temperature corresponding with described ambient temperature and with described operation of air conditioner mould Formula is corresponding pre-conditioned;
Control unit, for obtaining described pipe, gently described default dew point temperature persistently meets the described pre-conditioned time, when When the described time reaches the second Preset Time, control air-conditioning to shut down and generate fault-signal.
8. air-conditioner protection system according to claim 7 is it is characterised in that described first temperature collect module and second Temperature collect module is temperature-sensitive bag.
9. air-conditioner protection system according to claim 8 is it is characterised in that described second acquisition unit is specifically for logical Cross and inquire about default first mapping table, obtain under default relative humidity, the corresponding default dew point temperature of described ambient temperature, And by inquiring about default second mapping table, obtain corresponding with described air conditioning operating mode pre-conditioned.
10. according to the arbitrary described air-conditioner protection system of claim 7~9 it is characterised in that described first temperature acquisition mould Block is arranged on the pipeline of close outdoor heat exchanger side in described coolant heat dissipation pipeline or described first temperature collect module It is arranged on the pipeline away from the side of outdoor heat exchanger in described coolant heat dissipation pipeline.
11. air-conditioner protection systems according to claim 10 are it is characterised in that working as air conditioning operating mode is refrigeration mould Formula, and when described first temperature collect module is positioned close on the pipeline of outdoor heat exchanger side, described pre-conditioned be:Institute State Guan Wen and be less than or equal to described default dew point temperature and the difference of the first preset temperature, the span of the first preset temperature is 2~10 DEG C, the span of described second Preset Time is 1~10min;
When air conditioning operating mode is heating mode, and described first temperature collect module is positioned close to outdoor heat exchanger side When on pipeline, described pre-conditioned it is:Described Guan Wen is less than or equal to described default dew point temperature and the sum of the second preset temperature, The span of the second preset temperature is 2~10 DEG C, and the span of described second Preset Time is 1~10min;
When air conditioning operating mode is refrigeration mode, and described first temperature collect module is arranged far from outdoor heat exchanger side When on pipeline, described pre-conditioned it is:Described Guan Wen is less than or equal to described default dew point temperature and the sum of the 3rd preset temperature, The span of the 3rd preset temperature is 2~10 DEG C, and the span of described second Preset Time is 1~10min;
When air conditioning operating mode is heating mode, and described first temperature collect module is arranged far from outdoor heat exchanger side When on pipeline, described pre-conditioned it is:Described Guan Wen is less than or equal to described default dew point temperature and the difference of the 4th preset temperature Value, the span of the 4th preset temperature is 2~10 DEG C, and the span of described second Preset Time is 1~10min.
A kind of 12. air-conditioners are it is characterised in that include the arbitrary described air-conditioner protection system of claim 7~11.
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