CN106440252B - A kind of air conditioner guard method, protection system and air conditioner - Google Patents
A kind of air conditioner guard method, protection system and air conditioner Download PDFInfo
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- CN106440252B CN106440252B CN201610981998.7A CN201610981998A CN106440252B CN 106440252 B CN106440252 B CN 106440252B CN 201610981998 A CN201610981998 A CN 201610981998A CN 106440252 B CN106440252 B CN 106440252B
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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
- F24F2110/20—Humidity
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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
-
- 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
-
- 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
- F24F2110/10—Temperature
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- 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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- 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 present invention is more particularly directed to a kind of air conditioner guard method, protection system and air conditioners.The following steps are included: acquiring parameter preset at interval of the first preset time, the parameter preset includes the tube temperature of refrigerant heat dissipation pipeline, the environment temperature at refrigerant cooling device and air conditioning operating mode for the air conditioner guard method；Obtain and the corresponding default dew-point temperature of the environment temperature and preset condition corresponding with the air conditioning operating mode；It obtains the tube temperature and the default dew-point temperature persistently meets the time of the preset condition, when the time reaching the second preset time, control air-conditioning shuts down and generates fault-signal.Whether technical solution of the present invention can be in moisture condensation state with the electrical component in accurate judgement air conditioner driving plate, and close air conditioner in time in the electrical component moisture condensation in air conditioner driving plate, to avoid burning driving plate because electrical component condenses.
Description
Technical field
The present invention relates to airconditioning control field, in particular to a kind of air conditioner guard method, protection system and air conditioner.
Background technique
Air conditioner in the prior art needs dedicated drive control device to drive the operation of compressor or motor, works as pressure
When contracting machine or motor operation, the module of drive control device can generate heat, if this partial heat cannot dissipate in time, will 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 two kinds of liquid cooling, air cooling module is cooled down using flow of outside air, cooling capacity with the variation of outside air temperature and
Gentle transformation, is less prone to condensation, but cooling capacity is lower, and liquid cooled module is cooled down using system hypothermia refrigerant, cooling
Ability is larger, but there is also certain hidden danger to be easy when being lower than air dew point temperature such as refrigerant tube temperature in some electric components
On uncover, burn out driving plate.
Summary of the invention
The present invention provides a kind of air conditioner guard method, protection system and air conditioners, solve the prior art using liquid
Cold module is easy the technical issues of burning out driving plate when being cooled down.
The technical scheme to solve the above technical problems is that
According to one aspect of the present invention, a kind of air conditioner guard method is provided, comprising the following steps:
Step 1, parameter preset is acquired at interval of the first preset time, the parameter preset includes the pipe of refrigerant heat dissipation pipeline
Environment temperature and air conditioning operating mode at temperature, refrigerant cooling device；
Step 2, corresponding with the environment temperature default dew-point temperature and corresponding with the air conditioning operating mode is obtained
Preset condition；
Step 3, it obtains the tube temperature and the default dew-point temperature persistently meets the time of the preset condition, when described
When time reaches the second preset time, control air-conditioning shuts down and generates fault-signal.
Another aspect according to the present invention additionally provides 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 refrigerant heat dissipation pipeline, first temperature are adopted
Collect module to be arranged on the refrigerant heat dissipation pipeline, the outer of the refrigerant cooling device is arranged in the second temperature acquisition module
At shell,
First temperature collecting module is used to acquire the tube temperature of the refrigerant heat dissipation pipeline at interval of the first preset time；
The second temperature acquisition module is used to acquire the ring at the refrigerant cooling device at interval of the first preset time
Border temperature；
The control module includes:
First acquisition unit, for obtaining air conditioning operating mode at interval of the first preset time；
Second acquisition unit, for obtaining default dew-point temperature corresponding with the environment temperature and being transported with the air-conditioning
The corresponding preset condition of row mode；
Control unit, for obtain the tube temperature and the default dew-point temperature persistently meet the preset condition when
Between, when the time reaching the second preset time, control air-conditioning shuts down and generates fault-signal.
In order to solve technical problem of the invention, a kind of air conditioner, including the protection of above-described air conditioner are additionally provided
System.
The beneficial effects of the present invention are: technical solution of the present invention can be with the electrical member in accurate judgement air conditioner driving plate
Whether part is in moisture condensation state, and closes air conditioner in time in the electrical component moisture condensation in air conditioner driving plate, to avoid
Driving plate is burnt because of electrical component moisture condensation.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of air conditioner guard method provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram that a kind of air conditioner provided in an embodiment of the present invention protects system；
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 schematic diagram of air conditioner provided in an embodiment of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Fig. 1 gives a kind of flow diagram of air conditioner guard method provided in an embodiment of the present invention, as shown in Figure 1,
The following steps are included:
Step 1, parameter preset is acquired at interval of the first preset time, the parameter preset includes the pipe of refrigerant heat dissipation pipeline
Environment temperature and air conditioning operating mode at temperature, refrigerant cooling device；
Step 2, corresponding with the environment temperature default dew-point temperature and corresponding with the air conditioning operating mode is obtained
Preset condition；
Step 3, it obtains the tube temperature and the default dew-point temperature persistently meets the time of the preset condition, when described
When time reaches the second preset time, control air-conditioning shuts down and generates fault-signal.
In the technical solution of the embodiment of the present invention, the electricity in driving plate is judged by acquiring the tube temperature of refrigerant heat dissipation pipeline
Whether gas element is in moisture condensation state, and is directed to different air conditioning operating modes, such as air conditioner refrigerating mode and air-conditioning heating
The different Rule of judgment of mode setting, to keep judging result more targetedly also more accurate.Meanwhile the embodiment of the present invention
Technical solution further include judging that the tube temperature of refrigerant heat dissipation pipeline and dew-point temperature persistently meet whether time of Rule of judgment reaches
To the second preset time, only after reaching the second preset time, just judges that electrical component is in moisture condensation state, control air-conditioning
It shuts down and generates fault-signal, so that erroneous judgement situation is avoided the occurrence of, it is more accurate to the control process of air conditioner.Skill of the invention
Whether art scheme can be in moisture condensation state with the electrical component in accurate judgement air conditioner driving plate, and in air conditioner driving plate
Electrical component moisture condensation when close air conditioner in time, thus avoid because electrical component condense due to burn driving plate.
Optionally, as an embodiment of the present invention, the step 2 specifically: corresponding by inquiring preset first
Relation table obtains under default relative humidity, the corresponding default dew-point temperature of the environment temperature, and passes through inquiry preset second
Mapping table obtains preset condition corresponding with the air conditioning operating mode.Dew-point temperature is that air is gentle in moisture content
Under the conditions of pressure is all immovable, it is cooled to temperature when saturation, figuratively, when being exactly that vapor in air becomes dewdrop
Temperature.In the preferred embodiment, it can establish including environment temperature, preset relatively in the test process before air-conditioning factory
First mapping table of humidity and the environment temperature corresponding dew-point temperature in the case where this presets relative humidity, in operation of air conditioner mistake
Cheng Zhong can obtain environment temperature corresponding dew point temperature under default relative humidity only with first mapping table is inquired
It spends.
Because relative air humidity is higher under identical environment temperature, corresponding dew-point temperature is higher, therefore is establishing
When one mapping table, corresponding dew point temperature value can be taken under a higher relative humidity as reference standard, for example take phase
To humidity be 80% or 90% when dew point temperature value, be if the tube temperature of collected refrigerant heat dissipation pipeline meets relative humidity
Will not condense the condition of (air conditioner without shut down) when 80% or 90%, inevitable also to meet relative humidity more hour and condense
The condition of (air conditioner is without shutting down), i.e., if the electrical component in driving plate is in the environment of relative humidity is 80% or 90%
Do not condense, then it is identical in environment temperature, when relative humidity is 80% or less, will not necessarily it condense.In this way
It can reduce the workload for establishing the first mapping table, improve judging efficiency while guaranteeing judging result accuracy.
Similarly, it is corresponding that second including air conditioning operating mode and preset condition can also be established in the test process before air-conditioning factory
Relation table, and second mapping table is cured in operation program, by inquiring the second mapping table, can obtain
The corresponding preset condition of the tune operational mode.
Optionally, as an embodiment of the present invention, the first mapping table in the step 2 may include multiple
Default rh value and the corresponding default dew-point temperature of each default rh value.Such as first corresponding relationship
Table includes three default relative humidity, and the respectively first default relative humidity, the second default relative humidity and third are default opposite
Humidity each corresponds to different default dew-point temperatures under default relative humidity；It is determined by acquisition air-conditioning place to use described pre-
If relative humidity, specifically: air-conditioning place to use is obtained, and obtains the relative humidity maximum value of air-conditioning place to use, if described
Relative humidity maximum value is less than or equal to the first default relative humidity, then described default when inquiring first mapping table
Relative humidity value is the first default relative humidity；If the relative humidity maximum value is greater than the first default relative humidity and is less than
Or when being equal to the second default relative humidity, then when inquiring first mapping table, the default relative humidity value is the
Two default relative humidity；If the relative humidity maximum value, which is greater than the second default relative humidity and is less than third, presets relative humidity
When, then when inquiring first mapping table, the default relative humidity value third presets relative humidity.Specific one
In embodiment, the first default relative humidity is 70%, and the second default relative humidity is 80%, and the third presets phase
It is 90% to humidity, first mapping table is as shown in table 1 below,
1 first mapping table of table
It include three default relative humidity in table 1, respectively 70%, 80% and 90%, each default relative humidity is corresponding
Different default dew-point temperatures determines the default relative humidity, concrete mode by obtaining air-conditioning place to use are as follows: obtain empty
Place to use is adjusted, and obtains the relative humidity maximum value of air-conditioning place to use, if the relative humidity maximum value is less than or equal to
70%, then when inquiring first mapping table, the default relative humidity value is 70%；If the relative humidity is maximum
When value is greater than 70% and is less than or equal to 80%, then when inquiring first mapping table, the default relative humidity value
It is 80%；If the relative humidity maximum value is greater than 80% and when less than 90%, when inquiring first mapping table, institute
Stating default relative humidity value is 90%；If the relative humidity maximum value is greater than 90%, the described first corresponding pass is inquired
When being table, the default relative humidity value is 100%, and corresponding dew-point temperature is exactly the environment temperature at this time.For example it adopts
The environment temperature collected is 10 DEG C, and air-conditioning is 75% using the relative humidity maximum value on ground, therefore default relative humidity can take
80%, that is, the case where taking at slightly severe, by inquiry table 1, can get corresponding default dew-point temperature is 6.7 DEG C.When
It so in other examples, can be according to the actual situation to the first default relative humidity, the second default relative humidity and third
Default relative humidity carries out value, and establishes the first new mapping table, for example take 50%, 60% and 70%, can also be only
Two default relative humidity, such as 80% and 90% are set, these technical solutions are within protection scope of the present invention.
Optionally, as an embodiment of the present invention, in step 1, the tube temperature is in refrigerant heat dissipation pipeline close to room
First tube temperature of the pipeline of outer machine heat exchanger side, when air conditioning operating mode is refrigeration mode, the preset condition are as follows: described the
One tube temperature is less than or equal to the difference of the default dew-point temperature and the first preset temperature, and the value range of the first preset temperature is
2~10 DEG C, such as 3 DEG C, 4 DEG C, 7 DEG C, the value range of second preset time is 1~10min, such as 2 minutes or 5 points
Clock.
When air conditioning operating mode is heating mode, the preset condition are as follows: first tube temperature is less than or equal to described pre-
If the sum of dew-point temperature and the second preset temperature, the value range of the second preset temperature is 2~10 DEG C, such as 3 DEG C, 4 DEG C, 6 DEG C,
The value range of second preset time is 1~10min, such as 2 minutes or 5 minutes.
Optionally, as another embodiment of the invention, in step 1, the tube temperature is separate in refrigerant heat dissipation pipeline
Second tube temperature of the pipeline of outdoor unit heat exchanger side, when air conditioning operating mode is refrigeration mode, the preset condition are as follows: institute
State the sum that the second tube temperature is less than or equal to the default dew-point temperature and third preset temperature, the value range of third preset temperature
Be 2~10 DEG C, such as 3 DEG C, 5 DEG C, 8 DEG C, the value range of second preset time is 1~10min, such as 3 minutes or
6 minutes.
When air conditioning operating mode is heating mode, the preset condition are as follows: second tube temperature is less than or equal to described
The difference of default dew-point temperature and the 4th preset temperature, the value range of the 4th preset temperature are 2~10 DEG C, for example, 3 DEG C, 5 DEG C,
8 DEG C, the value range of second preset time is 1~10min, such as 3 minutes or 6 minutes.
When air-conditioning uses refrigeration mode, first tube temperature is greater than the default dew-point temperature and the first preset temperature
When difference, the electronic component in driving plate is not easy to condense, and the second tube temperature is greater than the default dew-point temperature and third is default
Temperature and when, the electronic component in driving plate is not easy to condense, this is because low temperature refrigerant is when air-conditioning uses refrigeration mode
From the pipeline close to outdoor heat exchanger side into going out from far from the pipeline of outdoor heat exchanger side, and in refrigerant heat dissipation pipeline
Refrigerant needs to radiate to drive control device or driving plate, therefore the temperature of outlet side should be higher than the temperature of inlet side, i.e., and the
Two tube temperatures should be higher than the first tube temperature.When air-conditioning uses heating mode, first tube temperature is greater than the default dew-point temperature
With the second preset temperature and when, the electronic component in driving plate is not easy to condense, and the second tube temperature is greater than the default dew point
When temperature and the difference of the 4th preset temperature, the electronic component in driving plate is not easy to condense, this is because air-conditioning is using heating mould
When formula, low temperature refrigerant is from the pipeline far from outdoor heat exchanger side into going out from close to the pipeline of outdoor heat exchanger side, and cold
Refrigerant in matchmaker's heat dissipation pipeline needs to radiate to drive control device or driving plate, therefore the temperature of outlet side should be higher than import
The temperature of side, i.e. the first tube temperature should be higher than the second tube temperature.
Above in association with Fig. 1, air conditioner guard method according to an embodiment of the present invention is described in detail, below with reference to Fig. 2, in detail
Air conditioner protection system according to an embodiment of the present invention is carefully described.
As shown in Fig. 2, protecting the structural schematic diagram of system for air conditioner provided in an embodiment of the present invention, including control mould
Block, the first temperature collecting module 101, second temperature acquisition module 102 and the cooling dress of refrigerant being arranged on refrigerant heat dissipation pipeline
It sets, first temperature collecting module 101 is arranged on the refrigerant heat dissipation pipeline, and the second temperature acquisition module 102 is set
It sets at the shell of the refrigerant cooling device,
First temperature collecting module 101 is used to acquire the pipe of the refrigerant heat dissipation pipeline at interval of the first preset time
Temperature；
The second temperature acquisition module 102 at interval of the first preset time for acquiring at the refrigerant cooling device
Environment temperature；
The control module includes:
First acquisition unit, for obtaining air conditioning operating mode at interval of the first preset time；
Second acquisition unit, for obtaining default dew-point temperature corresponding with the environment temperature and being transported with the air-conditioning
The corresponding preset condition of row mode；
Control unit, for obtain the tube temperature and the default dew-point temperature persistently meet the preset condition when
Between, when the time reaching the second preset time, control air-conditioning shuts down and generates fault-signal.
Optionally, as an embodiment of the present invention, first temperature collecting module 101 and second temperature acquire mould
Block 102 is temperature sensing package, and the tube temperature and refrigerant cooling of the refrigerant heat dissipation pipeline can be accurately acquired by temperature sensing package
Environment temperature at device.
Optionally, as an embodiment of the present invention, the second acquisition unit is specifically used for preset by inquiring
First mapping table obtains under default relative humidity, the corresponding default dew-point temperature of the environment temperature, and pre- by inquiry
If the second mapping table, obtain corresponding with air conditioning operating mode preset condition.First mapping table can
To include multiple default rh values and the corresponding default dew-point temperature of each default rh value, by obtaining sky
Place to use is adjusted to determine the default relative humidity.Preferably, first mapping table includes three default relative humidity,
Respectively first default relative humidity, the second default relative humidity and third preset relative humidity, each under default relative humidity
Corresponding different default dew-point temperature；The default relative humidity is determined by obtaining air-conditioning place to use, specifically: it obtains empty
Place to use is adjusted, and obtains the relative humidity maximum value of air-conditioning place to use, if the relative humidity maximum value is less than or equal to
First default relative humidity, then when inquiring first mapping table, the default relative humidity value is the first default phase
To humidity；If the relative humidity maximum value is greater than the first default relative humidity and is less than or equal to the second default relative humidity
When, then when inquiring first mapping table, the default relative humidity value is the second default relative humidity；If the phase
When being greater than the second default relative humidity to humidity maximum value and preset relative humidity less than third, then the described first corresponding pass is inquired
When being table, the default relative humidity value third presets relative humidity.In specific one embodiment, the first default phase
It is 70% to humidity, the second default relative humidity is 80%, and it is 90% that the third, which presets relative humidity,.
Optionally, as an embodiment of the present invention, the setting of the first temperature collecting module 101 is dissipated in the refrigerant
In pipe line on the pipeline 103 of 104 side of outdoor heat exchanger, the outdoor heat exchanger 104 and the refrigerant heat dissipation pipeline
Between be equipped with throttling set 105, the second temperature acquisition module 102 is arranged at the shell of the refrigerant cooling device 106,
As shown in figure 3, when air conditioning operating mode is refrigeration mode, the preset condition are as follows: the tube temperature of the pipeline 103 is less than or waits
In the difference of the default dew-point temperature and the first preset temperature, the value range of the first preset temperature is 2~10 DEG C, such as 3
DEG C, 4 DEG C, 7 DEG C, the value range of second preset time is 1~10min, such as 2 minutes or 5 minutes.
When air conditioning operating mode is heating mode, the preset condition are as follows: the tube temperature of the pipeline 103 is less than or equal to institute
State the sum of default dew-point temperature and the second preset temperature, the value range of the second preset temperature is 2~10 DEG C, such as 3 DEG C, 4 DEG C,
6 DEG C, the value range of second preset time is 1~10min, such as 2 minutes or 5 minutes.
Optionally, as another embodiment of the invention, first temperature collecting module 101 is arranged in the refrigerant
On the pipeline 107 of side in heat dissipation pipeline far from outdoor heat exchanger 104, the outdoor heat exchanger 104 and refrigerant heat dissipation
Throttling set 105 is equipped between pipeline, the outer of the refrigerant cooling device 106 is arranged in the second temperature acquisition module 102
At shell, as shown in figure 4, when air conditioning operating mode is refrigeration mode, the preset condition are as follows: the tube temperature of the pipeline 107 is small
In or equal to the default dew-point temperature and third preset temperature sum, the value range of third preset temperature is 2~10 DEG C,
For example 3 DEG C, 5 DEG C, 8 DEG C, the value range of second preset time are 1~10min, such as 3 minutes or 6 minutes.
When air conditioning operating mode is heating mode, the preset condition are as follows: the tube temperature of the pipeline 107 is less than or equal to
The difference of the default dew-point temperature and the 4th preset temperature, the value range of the 4th preset temperature are 2~10 DEG C, such as 3 DEG C,
5 DEG C, 8 DEG C, the value range of second preset time are 1~10min, such as 3 minutes or 6 minutes.
The present invention also provides a kind of air conditioners, as shown in figure 5, being the structural schematic diagram of air conditioner, including any of the above institute
The air conditioner protection system stated.
Whether technical solution of the present invention can be in moisture condensation state with the electrical component in accurate judgement air conditioner driving plate,
And air conditioner is closed in time in the electrical component moisture condensation in air conditioner driving plate, to avoid burning because electrical component condenses
Driving plate.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of air conditioner guard method, which comprises the following steps:
Step 1, at interval of the first preset time acquire parameter preset, the parameter preset include refrigerant heat dissipation pipeline tube temperature,
Environment temperature and air conditioning operating mode at refrigerant cooling device；
Step 2, it obtains and the corresponding default dew-point temperature of the environment temperature and corresponding with the air conditioning operating mode pre-
If condition；
Step 3, it obtains the tube temperature and the default dew-point temperature persistently meets the time of the preset condition, when the time
When reaching the second preset time, control air-conditioning shuts down and generates fault-signal；
In the step 1, the tube temperature is the first tube temperature of the pipeline of close outdoor unit heat exchanger side in refrigerant heat dissipation pipeline
Or the second tube temperature of the pipeline in refrigerant heat dissipation pipeline far from outdoor unit heat exchanger side；
In the step 3, when air conditioning operating mode is refrigeration mode, and the tube temperature is the first tube temperature, the preset condition
Are as follows: the tube temperature is less than or equal to the difference of the default dew-point temperature and the first preset temperature, the value of the first preset temperature
Range is 2~10 DEG C, and the value range of second preset time is 1~10min；
When air conditioning operating mode is heating mode, and the tube temperature is the first tube temperature, the preset condition are as follows: the tube temperature is small
In or equal to the default dew-point temperature and the second preset temperature sum, the value range of the second preset temperature is 2~10 DEG C, institute
The value range for stating the second preset time is 1~10min；
When air conditioning operating mode is refrigeration mode, and the tube temperature is the second tube temperature, the preset condition are as follows: the tube temperature is small
In or equal to the default dew-point temperature and third preset temperature sum, the value range of third preset temperature is 2~10 DEG C, institute
The value range for stating the second preset time is 1~10min；
When air conditioning operating mode is heating mode, and the tube temperature is the second tube temperature, the preset condition are as follows: the tube temperature is small
In or equal to the default dew-point temperature and the 4th preset temperature difference, the value range of the 4th preset temperature is 2~10 DEG C,
The value range of second preset time is 1~10min.
2. air conditioner guard method according to claim 1, which is characterized in that preset by inquiring in the step 2
First mapping table obtains the corresponding default dew-point temperature of the environment temperature under default relative humidity, and pre- by inquiry
If the second mapping table, obtain corresponding with air conditioning operating mode preset condition.
3. air conditioner guard method according to claim 2, which is characterized in that in step 2, first mapping table
Including three default relative humidity, the respectively first default relative humidity, the second default relative humidity and third are default relatively wet
Degree, each default relative humidity corresponds to different default dew-point temperatures；
The default relative humidity is determined by obtaining air-conditioning place to use: obtaining air-conditioning place to use, and obtains air-conditioning use
The relative humidity maximum value in place inquires institute if the relative humidity maximum value is less than or equal to the first default relative humidity
When stating the first mapping table, the default relative humidity value is the first default relative humidity；If the relative humidity is maximum
When value is greater than the first default relative humidity and is less than or equal to the second default relative humidity, then first mapping table is inquired
When, the default relative humidity value is the second default relative humidity；If the relative humidity maximum value is greater than the second default phase
It is when to humidity and presetting relative humidity less than or equal to third, then described default opposite when inquiring first mapping table
Humidity value third presets relative humidity.
4. air conditioner guard method according to claim 3, which is characterized in that the first default relative humidity is
70%, the second default relative humidity is 80%, and it is 90% that the third, which presets relative humidity,.
5. a kind of air conditioner protects system, which is characterized in that adopted including control module, the first temperature collecting module, second temperature
Collection module and the refrigerant cooling device being arranged on refrigerant heat dissipation pipeline, first temperature collecting module are arranged in the refrigerant
On heat dissipation pipeline, the second temperature acquisition module is arranged at the shell of the refrigerant cooling device,
First temperature collecting module is used to acquire the tube temperature of the refrigerant heat dissipation pipeline at interval of the first preset time；
The second temperature acquisition module is used to acquire the environment temperature at the refrigerant cooling device at interval of the first preset time
Degree；
The control module includes:
First acquisition unit, for obtaining air conditioning operating mode at interval of the first preset time；
Second acquisition unit, for obtain corresponding with the environment temperature default dew-point temperature and with the operation of air conditioner mould
The corresponding preset condition of formula；
Control unit persistently meets the time of the preset condition for obtaining the tube temperature and the default dew-point temperature, when
When the time reaches the second preset time, control air-conditioning shuts down and generates fault-signal；
First temperature collecting module be arranged in the refrigerant heat dissipation pipeline close to outdoor heat exchanger side pipeline on or
First temperature collecting module described in person is arranged on the pipeline of the side in the refrigerant heat dissipation pipeline far from outdoor heat exchanger；
When air conditioning operating mode is refrigeration mode, and first temperature collecting module is positioned close to outdoor heat exchanger side
When on pipeline, the preset condition are as follows: the tube temperature is less than or equal to the difference of the default dew-point temperature and the first preset temperature
Value, the value range of the first preset temperature are 2~10 DEG C, and the value range of second preset time is 1~10min；
When air conditioning operating mode is heating mode, and first temperature collecting module is positioned close to outdoor heat exchanger side
When on pipeline, the preset condition are as follows: the tube temperature is less than or equal to the sum of the default dew-point temperature and the second preset temperature,
The value range of second preset temperature is 2~10 DEG C, and the value range of second preset time is 1~10min；
When air conditioning operating mode is refrigeration mode, and first temperature collecting module is arranged far from outdoor heat exchanger side
When on pipeline, the preset condition are as follows: the tube temperature is less than or equal to the sum of the default dew-point temperature and third preset temperature,
The value range of third preset temperature is 2~10 DEG C, and the value range of second preset time is 1~10min；
When air conditioning operating mode is heating mode, and first temperature collecting module is arranged far from outdoor heat exchanger side
When on pipeline, the preset condition are as follows: the tube temperature is less than or equal to the difference of the default dew-point temperature and the 4th preset temperature
Value, the value range of the 4th preset temperature are 2~10 DEG C, and the value range of second preset time is 1~10min.
6. air conditioner according to claim 5 protects system, which is characterized in that first temperature collecting module and second
Temperature collecting module is temperature sensing package.
7. air conditioner according to claim 6 protects system, which is characterized in that the second acquisition unit is specifically used for logical
It crosses and inquires preset first mapping table, obtain under default relative humidity, the corresponding default dew-point temperature of the environment temperature,
And by inquiring preset second mapping table, preset condition corresponding with the air conditioning operating mode is obtained.
8. a kind of air conditioner, which is characterized in that protect system including any air conditioner of claim 5~7.
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| CN106871375A (en) * | 2017-03-21 | 2017-06-20 | 广东美的暖通设备有限公司 | The condensation prevention control method and device of radiator in air-conditioning system and air-conditioning system |
| CN106940070A (en) * | 2017-03-21 | 2017-07-11 | 广东美的暖通设备有限公司 | The condensation prevention control method and device of radiator in air-conditioning system and air-conditioning system |
| CN107560007B (en) * | 2017-08-15 | 2021-07-30 | 广东美的暖通设备有限公司 | Air conditioning system and condensation prevention control method and device for refrigerant radiating pipe of air conditioning system |
| CN108266876B (en) * | 2018-01-15 | 2020-10-23 | 广东美的暖通设备有限公司 | Electric control box, air conditioner and control method of air conditioner |
| CN109945398B (en) * | 2019-03-29 | 2021-06-18 | 广东美的制冷设备有限公司 | Air conditioner and control method and control device thereof |
| CN110296500B (en) * | 2019-07-10 | 2020-10-02 | 珠海格力电器股份有限公司 | Unit maintenance requirement determining method and device based on user tolerance condition and air conditioner |
| CN110925979B (en) * | 2019-11-26 | 2021-05-25 | 无锡药明偶联生物技术有限公司 | Control method and control device for clean air-conditioning box |
| CN112033580B (en) * | 2020-08-26 | 2023-04-07 | 广东高标电子科技有限公司 | Temperature sensing unit disconnection detection system, disconnection detection method and electric vehicle |
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