CN111457547A - Control method and control device for heating high-temperature protection and air conditioner - Google Patents
Control method and control device for heating high-temperature protection and air conditioner Download PDFInfo
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- CN111457547A CN111457547A CN202010283833.9A CN202010283833A CN111457547A CN 111457547 A CN111457547 A CN 111457547A CN 202010283833 A CN202010283833 A CN 202010283833A CN 111457547 A CN111457547 A CN 111457547A
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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
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2110/10—Temperature
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The invention provides a control method and a control device for heating high-temperature protection and an air conditioner, wherein the control method comprises the following steps: acquiring real-time detection indoor environment temperature A; judging an environment temperature interval T where the indoor environment temperature A is located, and acquiring a high-temperature-resistant temperature threshold C corresponding to the current environment temperature interval; acquiring the indoor coil temperature B detected in real time; and when the temperature B of the indoor coil pipe reaches the high-temperature-prevention threshold C, controlling the air conditioner to enter a preset high-temperature-prevention protection mode. According to the control method for heating high-temperature protection, the high-temperature protection threshold value C related to the ambient temperature is set, so that the value of entering high-temperature protection can be changed at different indoor temperatures, and the reliability of the unit and the comfort of user experience can be greatly improved by adopting the novel control method.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a control method and a control device for heating high-temperature protection and an air conditioner.
Background
With the continuous improvement of living standard of people, people have higher and higher pursuit of beauty of materials, and the air conditioner has become a necessity in life. The heat pump type air conditioning unit generally has a high temperature prevention control function and is used for preventing overhigh exhaust pressure, overhigh exhaust temperature and overload of a compressor of the unit in the whole heating process so as to ensure the reliable operation of the unit. Specifically, in the use process of the air conditioner, when the indoor coil reaches the high-temperature-prevention protection value, the outdoor fan of the air conditioner stops running, and the normal running of the outdoor fan can be recovered when the temperature of the indoor coil is reduced to a corresponding value.
The temperature difference exists between the actual indoor coil temperature and the temperature sensing bulb detection temperature due to the influence of factors such as the prior art, manufacturing and process, the temperature difference is related to the change speed and the change size of the actual indoor coil temperature, the faster and larger the actual indoor coil temperature is, the larger the temperature difference value is, and the indoor coil temperature change amount is different when the compressor does the same heating work under different environment temperature states. However, in the prior art, only a fixed high temperature protection value (such as 56 ℃) is set, and the high temperature protection value cannot be changed under different operation states, for example, the same temperature threshold value or a threshold value related to an operation stage is adopted in a heating start stage or a heating stable operation stage, and when the indoor temperature is overhigh (such as the indoor temperature is more than 28 ℃), the 56 ℃ is still used as the high temperature protection value, so that the reliability of a unit is reduced, and the comfort in the manufacturing process is reduced.
Disclosure of Invention
In view of the above, the present invention is directed to an intelligent protection control method, a control device, and an air conditioner for setting different high temperature prevention values according to an indoor load during heating, so as to solve the problems in the prior art that, in a heating process, the same temperature threshold is used for high temperature prevention control in different environments, so that a unit is prone to have high exhaust pressure and overload of a compressor at a heating and starting stage, poor unit operation reliability, low heating comfort, and the like.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control method for heating high-temperature protection is applied to an air conditioner and comprises the following steps:
acquiring real-time detection indoor environment temperature A;
judging an environment temperature interval T where the indoor environment temperature A is located, and acquiring a high-temperature-resistant temperature threshold C corresponding to the current environment temperature interval;
acquiring the indoor coil temperature B detected in real time;
and when the temperature B of the indoor coil pipe reaches the high-temperature-prevention threshold C, controlling the air conditioner to enter a preset high-temperature-prevention protection mode.
According to the invention, the high-temperature-resistant temperature threshold C related to the ambient temperature is set, so that the air conditioner can adopt the most appropriate temperature threshold under different ambient temperatures, the high-temperature-resistant protection control on the air conditioner is realized, and the purposes of improving the reliability of the unit and improving the heating comfort are achieved.
Furthermore, the number of the ambient temperature threshold values is N, wherein N is a positive natural number and is not less than 2.
The arrangement improves the control precision of the control method for heating high-temperature protection.
Furthermore, high-temperature-resistant temperature thresholds C corresponding to the different environmental temperature intervals in a one-to-one mode are arranged in the different environmental temperature intervals, and the high-temperature-resistant temperature thresholds C in the different environmental temperature intervals are different.
The arrangement further improves the control accuracy and reliability of the high-temperature protection control.
Further, the value of the high temperature prevention threshold C decreases as the corresponding temperature in the ambient temperature interval increases.
This setting makes the unit can have longer time just can get into under low temperature environment and prevent high temperature protection, and can get into fast under high temperature environment and prevent high temperature protection mode for the unit can both be reasonable the entering under the ambient temperature of difference and prevent high temperature protection mode, has both avoided frequently getting into the protection, has guaranteed the reliability of unit operation again, has further improved the comfort level when heating.
Furthermore, three environment temperature intervals T are set and respectively correspond to two environment temperature thresholds, namely a first environment temperature threshold A1A second ambient temperature threshold A2And A is1<A2。
Further, the ambient temperature T of the first ambient temperature interval1<A1The corresponding first high temperature-proof temperature threshold is C1(ii) a Ambient temperature A of the second ambient temperature interval1≤T2≤A2The corresponding second high temperature-resistant temperature threshold is C2，C1＞C2(ii) a Ambient temperature T of the third ambient temperature interval3＞A2The third prevention high-temperature threshold corresponding to the temperature is C3，C2＞C3。
The device can ensure the precision of high-temperature protection control, the reliability of unit operation and the comfort during heating, and can also reduce the workload executed by the control method and reduce the hardware cost.
Further, the first ambient temperature threshold A1Is a value between 22 ℃ and 25 ℃; the second ambient temperature threshold A2Is a value between 27 ℃ and 29 ℃; first high temperature prevention threshold C1Is a value between 57 ℃ and 59 ℃; second high temperature prevention threshold C2Is a value between 54 ℃ and 56 ℃; third prevention high temperature threshold C3Is a value between 50 ℃ and 53 ℃.
The setting provides a group of parameters capable of reliably realizing high-temperature protection, and under the parameters, the control method for heating high-temperature protection has the optimal effect.
Further, the control method for heating high-temperature protection comprises the following execution conditions:
execution condition 1: detecting and judging whether the indoor environment temperature A is more than A2；
Execution condition 2: detecting and judging whether the indoor coil temperature B is more than or equal to C3；
Execution condition 3: detecting and judging whether the indoor environment temperature A is2≥A≥A1；
Execution condition 4: detecting and judging whether the indoor coil temperature B is more than or equal to C2；
Execution condition 5: detecting and judging whether the indoor environment temperature A is less than A1；
Execution condition 6: detecting and judging whether the indoor coil temperature B is more than or equal to C1；
Execution condition 7: no treatment is carried out;
execution condition 8: entering high temperature protection;
the control method comprises the following steps: when the heating starting-up operation is carried out, firstly, whether any one of an execution condition 1, an execution condition 3 and an execution condition 5 is met is detected;
1) if the execution condition 1 is met, judging whether the execution condition 2 is met, if so, executing the condition 8, and if not, executing the condition 7;
2) if the execution condition 3 is met, judging whether the execution condition 4 is met, if so, executing the condition 8, and if not, executing the condition 7;
3) if the execution condition 5 is satisfied, it is determined whether the execution condition 6 is satisfied, if so, the condition 8 is executed, and if not, the condition 7 is executed.
The setting provides a specific control method and execution conditions when three environment temperature intervals T are set, a control program is optimized, and high-temperature protection control is accurate and reliable.
According to the control method for heating high-temperature protection, the high-temperature protection threshold value C related to the ambient temperature is set, so that the value of entering high-temperature protection can be changed at different indoor temperatures, and the reliability of the unit and the comfort of user experience can be greatly improved by adopting the novel control method.
Further, the invention also discloses a control device for heating high temperature protection, which is applied to an air conditioner and realizes the control method for heating high temperature protection, and the control method comprises the following steps:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for detecting and acquiring an indoor environment temperature A, an indoor coil temperature B and a high-temperature-resistant temperature threshold value C of an environment temperature interval in which the indoor environment temperature A is located;
the judging unit is used for judging whether the temperature B of the indoor coil reaches a high-temperature-resistant temperature threshold C of an environment temperature interval in which the indoor environment temperature A is located;
and the control unit is used for making an instruction whether to execute the high-temperature protection or not according to the information of the acquisition unit and the judgment unit.
Further, the invention also discloses an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the control method for heating and high temperature protection.
Compared with the prior art, the air conditioner and the control method for heating and high temperature protection have the same advantages, and are not described again.
Drawings
Fig. 1 is a flowchart of a control method for heating high-temperature protection according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a control method for heating protection according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control device for heating and high temperature protection according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Example 1
As shown in fig. 1, the present invention discloses a control method for heating high temperature protection, which is applied to an air conditioner, and comprises the following steps:
acquiring real-time detection indoor environment temperature A;
judging an environment temperature interval in which the indoor environment temperature A is positioned, and acquiring a high-temperature-resistant temperature threshold C corresponding to the current environment temperature interval;
acquiring the indoor coil temperature B detected in real time;
and when the temperature B of the indoor coil pipe reaches the high-temperature-prevention threshold C, controlling the air conditioner to enter a preset high-temperature-prevention protection mode.
In this embodiment, an indoor ambient temperature a is detected in real time through a temperature sensing bulb or a temperature sensor in a detection unit, and it is determined which ambient temperature is in a preset ambient temperature interval, so as to obtain a preset high temperature prevention threshold C corresponding to a current temperature interval, a correspondence between the indoor ambient temperature a and the ambient temperature interval T and the preset high temperature prevention threshold C corresponding to the ambient temperature interval can be obtained through table lookup, and then it is determined whether B is greater than or equal to C according to a detected indoor coil temperature B, if so, the air conditioner is controlled to enter a preset high temperature prevention protection mode, and if so, operations such as stopping an outer fan, converting wind gears of the inner fan and the outer fan are performed.
In a general air conditioner control program, the high-temperature protection value of the unit is not changed. Even though some of the prior art set different high temperature prevention thresholds in different heating stages (such as a heating startup stage and a heating stable operation stage), the high temperature prevention thresholds are also limited by the set heating stage and are not adjusted according to the change of the indoor temperature. When the high-temperature-resistant heat pump system is used for heating, the indoor environment temperature is detected and divided into sections, then a corresponding high-temperature-resistant temperature threshold value C is set for each environment temperature section, so that a high-temperature-resistant temperature threshold value C related to the indoor environment temperature is obtained, the high-temperature-resistant temperature threshold value C is not invariable, then the current indoor coil temperature B is obtained through detection and is compared with the high-temperature-resistant temperature threshold value C related to the current indoor environment temperature, and if B is larger than or equal to C, high-temperature-resistant operation is executed; otherwise, no processing is performed.
The invention can ensure that the air conditioner can adopt the most appropriate temperature threshold value under different environmental temperatures by setting the high temperature prevention temperature threshold value C related to the environmental temperature to carry out high temperature prevention protection control on the air conditioner, thereby solving the problems that the unit is easy to have high exhaust pressure, overload of a compressor and the like at the heating starting stage because the same temperature threshold value is adopted to carry out high temperature prevention control under different environments in the heating process in the prior art, and achieving the purpose of improving the reliability and the heating comfort of the unit.
As some examples of the present invention, the number of the ambient temperature threshold values is set to be N, N is a positive natural number, and N ≧ 2, thereby forming N +1 ambient temperature intervals T.
According to the control method for heating high-temperature-prevention protection, the more the set environment temperature intervals are, the more the corresponding high-temperature-prevention temperature threshold C is, and the more accurate the high-temperature-prevention protection control is. However, the more the set environmental temperature intervals are, the more the workload of the processing of the judgment module and the control module is, thereby bringing extra burden to the execution of the control method of the heating high temperature protection of the present invention.
Preferably, the three environmental temperature intervals T are respectively corresponding to two environmental temperature thresholds, namely a first environmental temperature threshold a1A second ambient temperature threshold A2And A is1<A2。
Comprehensively, the number N of the high-temperature-resistant threshold values C is 2, N can also be any one positive integer of 3, 4, 5, 6, 7 and 8, and at least two environment temperature threshold values A are set1、A2Thereby forming at least three ambient temperature intervals T1、T2、T3Ambient temperature T of the first ambient temperature interval1<A1Ambient temperature A of the second ambient temperature interval1≤T2≤A2Ambient temperature T of the third ambient temperature interval3＞A2. With the arrangement, the precision of high temperature protection control can be ensured,the reliability of the unit operation and the comfort during heating are ensured, the workload of the control method can be reduced, and the hardware cost is reduced.
Preferably, each environment temperature interval is correspondingly provided with a high temperature prevention threshold C, and the high temperature prevention threshold C is reduced along with the increase of the temperature in the environment temperature interval. That is, the higher the corresponding ambient temperature in the ambient temperature interval T is, the smaller the corresponding high temperature prevention threshold C is. For example the ambient temperature T of the first ambient temperature interval1<A1The corresponding high temperature resistant threshold is C1(ii) a Ambient temperature A of the second ambient temperature interval1≤T2≤A2The corresponding high temperature resistant threshold is C2，C1＞C2(ii) a Ambient temperature T of the third ambient temperature interval3＞A2The corresponding high temperature resistant threshold is C3，C2＞C3。
The applicant finds that when the environmental temperature is higher, the environmental temperature is in a higher temperature environmental interval, and at the moment, if the high temperature prevention threshold C is set to be too small, the time for the unit to enter high temperature prevention protection is shortened, and the unit is easy to enter protection frequently; and if the high-temperature-resistant temperature threshold C is set too high, the time for the unit to enter high-temperature-resistant protection is prolonged, and the running reliability of the unit is easily reduced. And this application is through corresponding lower high temperature threshold value C of preventing with the higher temperature interval of ambient temperature for the unit can have longer time just can get into under low temperature environment and prevent high temperature protection, and can get into fast under high temperature environment and prevent high temperature protection mode, make the unit can both be reasonable get into under the ambient temperature of difference and prevent high temperature protection mode, had both avoided frequently getting into the protection, had guaranteed the reliability of unit operation again, comfort level when further having improved the heating.
The control method of the heating high-temperature protection is characterized by detecting the indoor environment temperature A and the indoor coil temperature B and setting different high-temperature-resistant temperature thresholds C. When the ambient temperature in the detection chamber is higher than a certain fixed value, such as higher than A2And the indoor coil temperature B reaches a certain fixed value, e.g. C3Entering high temperature protection under the load; when the ambient temperature in the detection chamber is lower than a certain fixed value, such as lower than A1And the indoor coil temperature B reaches a certain fixed value, e.g. C1And then, the high-temperature protection under the load is carried out, and the reliability and the heating comfort of the unit are improved by the control method.
Preferably, when the heating system is started, the environment temperature interval in which the environment temperature is located is detected and judged according to the sequence from low to high of the temperature in the environment temperature interval T.
Under normal working conditions, the ambient temperature is generally low when the air conditioner is started, the ambient temperature interval where the ambient temperature is located is detected and judged according to the sequence from low to high of the temperature in the ambient temperature interval T, the judgment sequence is optimized through the detection, and the judgment steps are reduced. In addition, when the heating start-up machine operates, the control method for heating high-temperature protection can also detect and judge the environmental temperature interval in which the environmental temperature is located according to the sequence from high to low of the temperature in the environmental temperature interval T, and the scheme is applicable when the environmental temperature threshold is set to be lower.
The control method can be applied to the whole heating process of the air conditioner, and comprises a heating starting process stage and a heating stable process stage.
In the case of the example 2, the following examples are given,
referring to FIG. 2, specifically, take A1Is a numerical value between 22 ℃ and 25 ℃, preferably 24 ℃; a. the2Is a numerical value between 27 ℃ and 29 ℃, and is preferably 28 ℃; c1Is a value between 57 ℃ and 59 ℃; c2Is a value between 54 ℃ and 56 ℃; c3Is a value between 50 ℃ and 53 ℃.
The control method for the heating high-temperature protection comprises the following execution conditions:
execution condition 1: detecting indoor ambient temperature A > A2Such as A2Taking the mixture at 28 ℃;
execution condition 2: detecting indoor coil temperature B is not less than C3(recommended value is 50 to 53 ℃ C.)3If the value is too small, the time for the unit to enter high-temperature protection is shortenedShort, easy to enter protection frequently, C3If the value is too high, the time for the unit to enter high-temperature protection is prolonged, and the running reliability of the unit is easy to reduce);
execution condition 3: indoor ambient temperature A2≥A≥A1Such as A1Taking the mixture to be 24 ℃; namely, judging that the indoor environment temperature is 28 ℃ or more and A is more than or equal to 24 ℃;
execution condition 4: detecting indoor coil temperature B is not less than C2(recommended value is 54-56 ℃ C.)2If the value is too small, the time for the unit to enter high-temperature protection is shortened, the unit is easy to enter protection frequently, and C2If the value is too high, the time for the unit to enter high-temperature protection is prolonged, and the running reliability of the unit is easy to reduce);
execution condition 5: indoor environment temperature A < A1Such as A1Taking the mixture to be 24 ℃;
execution condition 6: detecting indoor coil temperature B is not less than C1(recommended value is 57 to 59 ℃ C.)1If the value is too small, the time for the unit to enter high-temperature protection is shortened, the unit is easy to enter protection frequently, and C1If the value is too high, the time for the unit to enter high-temperature protection is prolonged, and the running reliability of the unit is easy to reduce);
execution condition 7: no treatment is carried out;
execution condition 8: entering high temperature protection;
the control method comprises the following steps:
when the heating starting-up operation is carried out, firstly, whether any one of an execution condition 1, an execution condition 3 and an execution condition 5 is met is detected;
1) if the execution condition 1 is met, judging whether the execution condition 2 is met, if so, executing the condition 8, and if not, executing the condition 7;
heating and starting up, firstly detecting whether the indoor environment temperature A is more than 28 ℃, 28 is more than or equal to A is more than or equal to 24 ℃, A is less than 24 DEG C
If A is more than 28 ℃, then judging whether the temperature B of the indoor coil pipe is more than or equal to C3(recommended value is 50-53 ℃), the unit enters high temperature protection, and if not, the unit is not processed;
2) if the execution condition 3 is met, judging whether the execution condition 4 is met, if so, executing the condition 8, and if not, executing the condition 7;
namely, if the temperature of 28 is more than or equal to A and more than or equal to 24 ℃, whether the temperature of the indoor coil pipe is met or not is judged, and the temperature B is more than or equal to C2(the recommended value is 54-56 ℃), the unit enters high-temperature protection, and if the recommended value is not met, the unit is not processed;
3) if the execution condition 5 is met, judging whether the execution condition 6 is met, if so, executing the condition 8, and if not, executing the condition 7;
namely, if A is less than 24 ℃, whether the temperature B of the indoor coil pipe is more than or equal to C is judged1(recommended value is 57-59 ℃), the unit enters high temperature protection, and if not, the unit is not processed.
It should be understood that the indoor environment temperature, the indoor coil temperature and the high temperature protection value mentioned in the present invention are only examples, and the control method of heating high temperature protection according to the present invention is most effective when the parameters of the above values are adopted.
As a part of the embodiments of the present invention, there is also provided a control device for heating high temperature protection, including:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for detecting and acquiring an indoor environment temperature A, an indoor coil temperature B and a high-temperature-resistant temperature threshold value C of an environment temperature interval in which the indoor environment temperature A is located;
the judging unit is used for judging whether the temperature B of the indoor coil reaches a high-temperature-resistant temperature threshold C of an environment temperature interval in which the indoor environment temperature A is located;
and the control unit is used for making an instruction whether to execute the high-temperature protection or not according to the information of the acquisition unit and the judgment unit. For example, the high temperature protection is carried out by controlling the operation of the outdoor fan.
As a part of the embodiments of the present invention, there is also provided an air conditioner, including a computer-readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed to implement the control method for heating and high temperature protection.
As a part of the embodiments of the present invention, there is also provided a computer-readable storage medium, in which a computer program is stored, and when the computer program is read and executed by a processor, the control method for heating high-temperature protection as described above is implemented.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A control method for heating high-temperature protection is applied to an air conditioner and is characterized by comprising the following steps:
acquiring real-time detection indoor environment temperature A;
judging an environment temperature interval T where the indoor environment temperature A is located, and acquiring a high-temperature-resistant temperature threshold C corresponding to the current environment temperature interval;
acquiring the indoor coil temperature B detected in real time;
and when the temperature B of the indoor coil pipe reaches the high-temperature-prevention threshold C, controlling the air conditioner to enter a preset high-temperature-prevention protection mode.
2. The heating high-temperature protection control method according to claim 1, wherein the environmental temperature intervals T are separated by environmental temperature thresholds, the number of the environmental temperature thresholds is N, N is a positive natural number, and N is greater than or equal to 2.
3. The control method for heating high-temperature protection according to claim 1, wherein high-temperature-prevention threshold values C corresponding to different environmental temperature sections in a one-to-one manner are set in the different environmental temperature sections, and the high-temperature-prevention threshold values C in the different environmental temperature sections are different.
4. A control method for heating high temperature protection according to claim 1, wherein the value of the high temperature protection threshold value C decreases as the corresponding temperature in the ambient temperature interval increases.
5. The heating high-temperature protection control method according to any one of claims 1 to 4, wherein three environmental temperature intervals T are set, and correspond to two environmental temperature thresholds, namely a first environmental temperature threshold A1A second ambient temperature threshold A2And A is1<A2。
6. The control method for heating high temperature protection according to claim 5, wherein the ambient temperature T of the first ambient temperature zone1<A1The corresponding first high temperature-proof temperature threshold is C1(ii) a Ambient temperature A of the second ambient temperature interval1≤T2≤A2The corresponding second high temperature-resistant temperature threshold is C2，C1＞C2(ii) a Ambient temperature T of the third ambient temperature interval3＞A2The third prevention high-temperature threshold corresponding to the temperature is C3，C2＞C3。
7. Control method of heating high temperature protection according to claim 6, characterized in that said first ambient temperature threshold A1Is a value between 22 ℃ and 25 ℃; the second ambient temperature threshold A2Is a value between 27 ℃ and 29 ℃; first high temperature prevention threshold C1Is a value between 57 ℃ and 59 ℃; second high temperature prevention threshold C2Is a value between 54 ℃ and 56 ℃; third prevention high temperature threshold C3Is a value between 50 ℃ and 53 ℃.
8. The control method of heating high-temperature protection according to claim 7, characterized in that the control method of heating high-temperature protection includes the following execution conditions:
execution condition 1: detecting and judging whether the indoor environment temperature A is more than A2；
Execution condition 2: detecting and judging whether the indoor coil temperature B is more than or equal to C3；
Execution condition 3: detecting and judging whether the indoor environment temperature A is2≥A≥A1；
Execution condition 4: detecting and judging whether the indoor coil temperature B is more than or equal to C2；
Execution condition 5: detecting and judging whether the indoor environment temperature A is less than A1；
Execution condition 6: detecting and judging whether the indoor coil temperature B is more than or equal to C1；
Execution condition 7: no treatment is carried out;
execution condition 8: entering high temperature protection;
the control method comprises the following steps: when the heating starting-up operation is carried out, firstly, whether any one of an execution condition 1, an execution condition 3 and an execution condition 5 is met is detected;
1) if the execution condition 1 is met, judging whether the execution condition 2 is met, if so, executing the condition 8, and if not, executing the condition 7;
2) if the execution condition 3 is met, judging whether the execution condition 4 is met, if so, executing the condition 8, and if not, executing the condition 7;
3) if the execution condition 5 is satisfied, it is determined whether the execution condition 6 is satisfied, if so, the condition 8 is executed, and if not, the condition 7 is executed.
9. A control device for heating high-temperature protection, which is applied to an air conditioner and implements the control method for heating high-temperature protection according to any one of claims 1 to 8, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for detecting and acquiring an indoor environment temperature A, an indoor coil temperature B and a high-temperature-resistant temperature threshold value C of an environment temperature interval in which the indoor environment temperature A is located;
the judging unit is used for judging whether the temperature B of the indoor coil reaches a high-temperature-resistant temperature threshold C of an environment temperature interval in which the indoor environment temperature A is located;
and the control unit is used for making an instruction whether to execute the high-temperature protection or not according to the information of the acquisition unit and the judgment unit.
10. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the control method of heating high temperature protection according to any one of claims 1 to 8.
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| CN202010283833.9A CN111457547B (en) | 2020-04-13 | 2020-04-13 | Control method and control device for heating high-temperature protection and air conditioner |
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| CN202010283833.9A CN111457547B (en) | 2020-04-13 | 2020-04-13 | Control method and control device for heating high-temperature protection and air conditioner |
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| CN111895590A (en) * | 2020-07-31 | 2020-11-06 | 宁波奥克斯电气股份有限公司 | Control method and device for improving reliability of fixed-frequency air conditioner and air conditioner |
| CN114251810A (en) * | 2021-12-13 | 2022-03-29 | 广东美的制冷设备有限公司 | Control method, storage medium, control device and air conditioner |
| CN115307269A (en) * | 2022-08-05 | 2022-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioner control method and device and air conditioner |
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