CN112648719A - Air conditioner refrigeration control method and air conditioning equipment - Google Patents
Air conditioner refrigeration control method and air conditioning equipment Download PDFInfo
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- CN112648719A CN112648719A CN201910965153.2A CN201910965153A CN112648719A CN 112648719 A CN112648719 A CN 112648719A CN 201910965153 A CN201910965153 A CN 201910965153A CN 112648719 A CN112648719 A CN 112648719A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 78
- 238000004378 air conditioning Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004590 computer program Methods 0.000 claims description 15
- 238000013507 mapping Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- 238000012935 Averaging Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
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- 238000004891 communication Methods 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
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- 206010063385 Intellectualisation Diseases 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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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
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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Abstract
The invention discloses an air conditioner refrigeration control method and air conditioning equipment, wherein the air conditioner refrigeration control method comprises the following steps: when the air conditioner is in a refrigeration mode, judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature: and when the current outdoor environment temperature is lower than the preset target refrigeration temperature, controlling the refrigeration capacity of the air conditioner according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature, so that the current indoor environment temperature is reduced to the current outdoor environment temperature. The invention makes corresponding judgment according to the comparison result of the current outdoor environment temperature and the preset refrigeration target temperature, and properly adjusts the running condition of the air conditioner so as to ensure that the indoor environment is in the condition of the best comfort level and exert better superiority of the air conditioner.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner refrigeration control method and air conditioning equipment.
Background
With the forward development of society, the concepts of energy saving and environmental protection are well-intentioned, and the inverter air conditioner is accepted and accepted by people. At present, the temperature regulation principle of the inverter air conditioner in a refrigeration state is as follows: judging whether the indoor environment temperature is greater than a preset refrigeration target temperature in real time, wherein the preset refrigeration target temperature is fixed and unchanged: when the indoor environment temperature is higher than the preset refrigeration target temperature, the rotating speed of the air conditioner compressor is controlled to be increased so as to reduce the indoor environment temperature to the preset refrigeration target temperature, at the moment, the operation of the air conditioner is irrelevant to the outdoor environment temperature and only relevant to the indoor environment temperature and the preset refrigeration target temperature, and when the indoor environment temperature is close to the preset refrigeration target temperature, the air conditioner compressor can operate at a reduced speed.
When the indoor environment temperature is less than or equal to the preset refrigeration target temperature, the air conditioner can enter an energy-saving mode, the air conditioner compressor can run at the minimum frequency speed reduction speed or stop running, at the moment, when the outdoor environment temperature is less than the preset refrigeration target temperature, the outdoor environment temperature is inevitably less than the indoor environment temperature, the refrigeration capacity of the air conditioner can not be intelligently adjusted by the conventional variable frequency air conditioner, the air conditioner compressor still runs at the minimum frequency speed reduction speed or stops running, and under the condition, the closed indoor environment temperature is lower than the indoor environment temperature, so that people can feel stuffy, people feel uncomfortable, and the comfort level of people is greatly reduced. Therefore, in this case, the air conditioner also loses its function.
Particularly, when the air conditioner is operated at night, the preset cooling target temperature is often set to be relatively high before people sleep, for example, the preset cooling target temperature is 28 ℃. With the arrival of nighttime, the outdoor ambient temperature may be lower than the preset cooling target temperature, for example, 25 degrees, due to weather changes (rain) or diurnal temperature differences. At this time, when the indoor ambient temperature is less than or equal to the preset cooling target temperature, the air conditioner may be decelerated or stopped from operating, and a sleepy person may feel stuffiness and discomfort due to the outdoor ambient temperature being less than the indoor ambient temperature.
Meanwhile, people pay more and more attention to the comfort requirement of the living environment, and in the design of the existing variable frequency air conditioner, the indoor environment temperature is judged by detecting the return air temperature data of the indoor unit, so that the measured indoor environment temperature is often inaccurate.
There is a need for a method for controlling cooling of an air conditioner and an air conditioning apparatus.
Disclosure of Invention
The invention aims to solve the technical problem that the refrigerating capacity of a compressor cannot be increased when the indoor temperature is stuffy due to the fact that the outdoor environment temperature is lower than the preset refrigerating target temperature in the refrigerating mode of the conventional air conditioner.
In order to solve the problems, the invention provides an air conditioner refrigeration control method and air conditioning equipment.
In a first aspect, the present invention provides a refrigeration control method for an air conditioner, including the following steps:
when the air conditioner is in a refrigeration mode, judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature:
and when the current outdoor environment temperature is lower than the preset target refrigeration temperature, controlling the refrigeration capacity of the air conditioner according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature, so that the current indoor environment temperature is reduced to the current outdoor environment temperature.
According to an embodiment of the present invention, preferably, the controlling the cooling capacity of the air conditioner according to the difference between the current outdoor environment temperature and the current indoor environment temperature to reduce the current indoor environment temperature to the current outdoor environment temperature specifically includes the following steps:
calculating a temperature difference value between the current outdoor environment temperature and the current indoor environment temperature;
determining the operating frequency of the air-conditioning compressor according to the mapping relation between the temperature difference value and the operating frequency of the air-conditioning compressor;
and controlling the air conditioner compressor to operate according to the operating frequency so as to reduce the current indoor environment temperature to the current outdoor environment temperature.
According to the embodiment of the present invention, preferably, the operating frequency of the air conditioner compressor corresponding to the temperature difference value is looked up by recording a mapping table of a correspondence between the temperature difference value and the operating frequency of the air conditioner compressor.
According to an embodiment of the present invention, preferably, the current outdoor ambient temperature is obtained by:
collecting a plurality of outdoor ambient temperatures;
and calculating the average value of the outdoor environment temperature according to the plurality of outdoor environment temperatures as the current outdoor environment temperature.
According to an embodiment of the present invention, preferably, the current indoor ambient temperature is obtained by:
collecting a plurality of indoor ambient temperatures;
and calculating the average value of the indoor environment temperatures according to the plurality of indoor environment temperatures as the current indoor environment temperature.
In a second aspect, the present invention provides an air conditioning apparatus comprising:
the outdoor temperature sensor is used for acquiring the current outdoor environment temperature;
the indoor temperature sensor is used for acquiring the current indoor environment temperature;
a control module connected to the outdoor temperature sensor and the indoor temperature sensor, the control module comprising a memory having stored thereon a computer program which, when executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
According to an embodiment of the present invention, preferably, the outdoor temperature sensor includes a plurality of outdoor thermal bulbs for collecting a plurality of outdoor ambient temperatures;
indoor temperature sensor includes a plurality of indoor temperature sensing package, and is a plurality of indoor temperature sensing package is used for gathering a plurality of indoor ambient temperature.
According to an embodiment of the present invention, preferably, the control module includes:
a first control unit disposed on the main control panel of the outdoor unit and connected to the plurality of outdoor thermal bulbs, wherein the first control unit includes a first memory and a first processor, the first memory having a computer program stored thereon, and the computer program when executed by the first processor implements the following steps: calculating an average value of the outdoor environment temperatures according to the plurality of outdoor environment temperatures as a current outdoor environment temperature;
a second control unit disposed on the main control panel of the internal machine, and connected to the plurality of indoor thermal bulbs, wherein the second control unit includes a second memory and a second processor, and the second memory stores a computer program, and when the computer program is executed by the second processor, the following steps are implemented: calculating the average value of the indoor environment temperatures according to the plurality of indoor environment temperatures as the current indoor environment temperature, and judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature when the air conditioner is in a refrigeration mode: and when the current outdoor environment temperature is lower than the preset refrigeration target temperature, controlling the refrigerating capacity of the air conditioner according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature.
According to an embodiment of the present invention, preferably, the air conditioning equipment includes an air conditioner external unit and an air conditioner internal unit, wherein the plurality of outdoor thermal bulbs and the external unit main control board are integrated in the air conditioner external unit, and the plurality of indoor thermal bulbs and the internal unit main control board are integrated in the air conditioner internal unit.
According to the embodiment of the present invention, preferably, the plurality of outdoor thermal bulbs are correspondingly connected to the plurality of ADC pins on the outdoor unit main control board, the plurality of indoor thermal bulbs are correspondingly connected to the plurality of ADC pins on the indoor unit main control board, and the outdoor unit main control board communicates with the indoor unit main control board in any one of a UART line, a WIFI mode, and a bluetooth mode.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
1) when the air conditioner is in a refrigeration mode, the refrigeration control method of the air conditioner judges whether the current outdoor environment temperature is lower than the preset refrigeration target temperature, controls the refrigeration quantity of the air conditioner according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature when the current outdoor environment temperature is lower than the preset refrigeration target temperature, reduces the current indoor environment temperature to the current outdoor environment temperature, makes corresponding judgment according to the comparison result between the current outdoor environment temperature and the preset refrigeration target temperature, and appropriately adjusts the running condition of the air conditioner so as to enable the indoor environment to be in the condition of the best comfort level, thereby exerting better superiority of the air conditioner.
2) By applying the air conditioning equipment, the average value of the outdoor environment temperatures acquired by the outdoor temperature sensing bags correspondingly serves as the current outdoor environment temperature, and the average value of the indoor environment temperatures acquired by the indoor temperature sensing bags correspondingly serves as the current indoor environment temperature, so that the indoor environment temperature and the outdoor environment temperature are measured more accurately, the performance of the air conditioner is improved, the measurement accuracy of the outdoor environment temperature by the outdoor unit of the air conditioner is improved, the measurement accuracy of the indoor environment temperature by the indoor unit of the air conditioner is improved, the comfort level of people is improved, and the intelligent function of the air conditioner is increased.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart illustrating an air conditioner refrigeration control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a refrigeration control method of an air conditioner according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third air conditioner according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a four-air conditioner according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a five-air conditioner according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
Example one
In order to solve the technical problems in the prior art, the embodiment of the invention provides an air conditioner refrigeration control method.
Referring to fig. 1, the air conditioner refrigeration control method of the embodiment includes the following steps:
s110, when the air conditioner is in a refrigeration mode, judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature: if yes, go to step S120; if not, no response is given;
s120, calculating a temperature difference value between the current outdoor environment temperature and the current indoor environment temperature;
s130, determining the operating frequency of the air-conditioning compressor according to the known mapping relation between the temperature difference value and the operating frequency of the air-conditioning compressor;
and S140, controlling the air conditioner compressor to operate according to the operating frequency so as to reduce the current indoor environment temperature to the current outdoor environment temperature.
The air conditioner refrigeration control method of the embodiment compares the current outdoor environment temperature with the preset refrigeration target temperature, preliminarily judges whether to adjust the operation frequency of the air conditioner compressor, determines the operation frequency of the air conditioner compressor according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature when the current outdoor environment temperature is lower than the preset refrigeration target temperature, and controls the air conditioner compressor to operate according to the operation frequency, so that the current indoor environment temperature is reduced to the current outdoor environment temperature.
Example two
In order to solve the above technical problems in the prior art, an embodiment of the present invention provides an air-conditioning refrigeration control method based on the first embodiment, wherein the air-conditioning refrigeration control method according to the first embodiment of the present invention is further improved from the step S130 in the first embodiment.
Referring to fig. 2, the air conditioner refrigeration control method of the embodiment includes the following steps:
s210, when the air conditioner is in a refrigeration mode, judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature: if yes, go to step S220; if not, no response is given;
s220, calculating a temperature difference value between the current outdoor environment temperature and the current indoor environment temperature;
s230, searching the operating frequency of the air-conditioning compressor corresponding to the temperature difference value by recording a mapping relation table of the corresponding relation between the temperature difference value and the operating frequency of the air-conditioning compressor;
and S240, controlling the air conditioner compressor to operate according to the operating frequency so as to reduce the current indoor environment temperature to the current outdoor environment temperature.
In step S220, the current outdoor ambient temperature is obtained by: collecting a plurality of outdoor ambient temperatures; and calculating the average value of the outdoor environment temperature according to the plurality of outdoor environment temperatures as the current outdoor environment temperature. The current indoor ambient temperature is obtained by the following steps: collecting a plurality of indoor ambient temperatures; and calculating the average value of the indoor environment temperatures according to the plurality of indoor environment temperatures as the current indoor environment temperature.
It should be noted that the mapping table for recording the corresponding relationship between the temperature difference value and the operating frequency of the air conditioner compressor includes two types of data: firstly, when the indoor environment temperature is reduced to the outdoor environment temperature, the mapping relation between the temperature difference value between the outdoor environment temperature and the indoor environment temperature and the operation frequency of the air-conditioning compressor is obtained; and secondly, when the indoor environment temperature is reduced to the preset refrigeration target temperature, the mapping relation between the temperature difference value between the indoor environment temperature and the preset refrigeration target temperature and the operation frequency of the air-conditioning compressor is realized. In addition, the mapping relation table can also be a corresponding relation table between a temperature difference value preset in the air conditioner and the operating frequency of the air conditioner compressor.
EXAMPLE III
This embodiment describes a case where the method of the second embodiment is applied to a case where the indoor ambient temperature and the outdoor ambient temperature are obtained by a plurality of thermal bulbs, respectively.
The air conditioner is a variable frequency air conditioner, and the variable frequency air conditioner comprises an air conditioner inner unit complete machine and an air conditioner outer unit complete machine, wherein an inner unit main control board is arranged in the air conditioner inner unit complete machine, an outer unit main control board is arranged in the air conditioner outer unit complete machine, a plurality of temperature sensing bulbs are respectively arranged on the air conditioner outer unit complete machine and the air conditioner inner unit complete machine, the plurality of temperature sensing bulbs on the air conditioner inner unit complete machine shell are connected with the inner unit main control board, the plurality of temperature sensing bulbs on the air conditioner outer unit complete machine shell are connected with the outer unit main control board, and the inner unit main control board and the outer unit main control board both collect temperature in real.
Referring to fig. 3, the main control board of the internal machine correspondingly samples the voltage values of the N thermal bulbs through N ADCs (Analog-to-Digital converters or Analog-to-Digital converters), and obtains the real-time temperature value of each thermal bulb corresponding to a preset truth table to calculate the indoor average temperature TIndoor averagingSimilarly, the external unit main control board correspondingly samples the voltage values of the N temperature sensing bags through the N ADCs, correspondingly obtains the real-time temperature value of each temperature sensing bag through a preset truth table, and calculates the outdoor average temperature TOutdoor averaging。
The outdoor unit main control board transmits the outdoor average temperature to the indoor unit main control board through a Universal Asynchronous Receiver/Transmitter (UART) line, and the indoor unit main control board judges T when the air conditioner is in a refrigeration modeOutdoor averaging(current outdoor ambient temperature in example two) is less than TPreset temperature(preset cooling target temperature in embodiment two): if so, calculating a temperature difference value between the current outdoor environment temperature and the current indoor environment temperature, searching the operating frequency of the air-conditioning compressor corresponding to the temperature difference value in a constructed mapping relation table between the current outdoor environment temperature and the current indoor environment temperature and the operating frequency of the air-conditioning compressor, and controlling the air-conditioning compressor to operate according to the operating frequency so as to reduce the current indoor environment temperature to the current room temperatureAn external ambient temperature; if not, the air conditioner maintains the current operation.
The compressor rotation speed in fig. 3 is obtained by converting the operating frequency of the air conditioning compressor.
Note that the arrows in fig. 3 indicate the data transmission direction.
In the embodiment, the outdoor unit and the indoor unit of the air conditioner are provided with the plurality of temperature sensing bags, and the average value of the monitored temperature is calculated by the main control board of the indoor unit and the main control board of the outdoor unit respectively, so that the real-time outdoor temperature and the real-time indoor temperature can be accurately obtained.
In the embodiment, the refrigerating capacity is intelligently determined according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature, so that resources are not wasted, and the indoor environment can be ensured to be kept in a comfortable state all the time.
This embodiment judges TOutdoor averagingWhether or not less than TPreset temperature: if the temperature is lower than the preset temperature, the refrigerating capacity is intelligently and automatically increased, and the indoor temperature is reduced, so that the comfort level of people is improved, and the superiority of the air conditioner is exerted; if the current operation state is larger than the preset operation state, the air conditioner maintains the current operation state. The embodiment can intelligently adjust the running state of the air conditioner, increase the intellectualization and the superior feeling of the air conditioner, simultaneously maintain the indoor comfortable environment and improve the comfort level of indoor personnel.
The embodiment utilizes the UART line of the variable frequency air conditioner for the communication between the inner machine main control board and the outer machine main control board, the design is simple and convenient, and the cost is saved.
Example four
In order to solve the technical problems in the prior art, the embodiment of the invention also provides air conditioning equipment.
Referring to fig. 4, the air conditioning apparatus of the present embodiment includes:
an outdoor temperature sensor 401 including a plurality of outdoor thermal bulbs 4011, 4012, 4013 for collecting a plurality of outdoor ambient temperatures;
an indoor temperature sensor 402 including a plurality of indoor bulbs 4021, 4022, 4023 for acquiring a plurality of indoor ambient temperatures;
and a control module 403 connected to the outdoor temperature sensor and the indoor temperature sensor, wherein the control module includes a memory and a processor, the memory stores a computer program, and the computer program implements the steps of the air-conditioning refrigeration control method when executed by the processor.
Wherein the control module comprises:
a first control unit 4031 disposed on the outer unit main control panel and connected to the plurality of outdoor thermal bulbs, the first control unit including a first memory and a first processor, the first memory having a computer program stored thereon, the computer program when executed by the first processor implementing the steps of: calculating an average value of the outdoor environment temperatures according to the plurality of outdoor environment temperatures as a current outdoor environment temperature;
a second control unit 4032 disposed on the internal machine main control board and connected to the plurality of indoor thermal bulbs, the second control unit including a second memory and a second processor, the second memory having stored thereon a computer program that, when executed by the second processor, implements the steps of: calculating the average value of the indoor environment temperatures according to the plurality of indoor environment temperatures as the current indoor environment temperature, and judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature when the air conditioner is in a refrigeration mode: and when the current outdoor environment temperature is lower than the preset refrigeration target temperature, controlling the refrigerating capacity of the air conditioner according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature.
The air conditioning equipment of the embodiment further comprises an air conditioner external unit and an air conditioner internal unit, wherein the outdoor temperature sensing bulbs and the external unit main control board are integrated in the air conditioner external unit, and the indoor temperature sensing bulbs and the internal unit main control board are integrated in the air conditioner internal unit.
In this embodiment, a plurality of outdoor thermal bulbs are correspondingly connected to a plurality of ADC pins on the outer unit main control board, a plurality of indoor thermal bulbs are correspondingly connected to a plurality of ADC pins on the inner unit main control board, and the outer unit main control board communicates with the inner unit main control board in any one of a UART line, a WIFI mode, and a bluetooth mode.
The air conditioning equipment of this embodiment compares current outdoor ambient temperature with preset refrigeration target temperature, whether the operating frequency of air condition compressor is adjusted in preliminary judgement, and when current outdoor ambient temperature is less than preset refrigeration target temperature, determine air condition compressor's operating frequency according to the difference in temperature value of current outdoor ambient temperature and current indoor ambient temperature, and control air condition compressor and move according to this operating frequency, make current indoor ambient temperature reduce to current outdoor ambient temperature, this kind of method of intelligent control air conditioner, after the air conditioner starts, as long as under the refrigeration mode, automatically realize, do not need the remote controller to operate, and is simple and convenient, and user's experience is improved.
This embodiment air conditioning equipment's controller, when the air conditioner is in the refrigeration mode, judges whether current outdoor ambient temperature is less than and predetermines refrigeration target temperature, and when current outdoor ambient temperature is less than and predetermine refrigeration target temperature, according to the refrigerating capacity of current outdoor ambient temperature and current indoor ambient temperature's difference in temperature value control air conditioner makes current indoor ambient temperature reduce to current outdoor ambient temperature, according to corresponding judgement is made to current outdoor ambient temperature and the comparison result of predetermineeing refrigeration target temperature, suitably adjusts the operation condition of air conditioner to make the indoor condition that is in the comfort level best, exert the better superiority of air conditioner.
EXAMPLE five
In order to solve the technical problems in the prior art, an embodiment of the present invention provides an air conditioner refrigeration control method based on the fourth embodiment, where the internal machine main control board in the embodiment of the present invention includes a temperature comparison unit and an automatic temperature adjustment unit.
Referring to fig. 5, the air conditioner comprises an air conditioner inner unit complete machine and an air conditioner outer unit complete machine, wherein an inner unit main control board is arranged in the air conditioner inner unit complete machine, an outer unit main control board is arranged in the air conditioner outer unit complete machine, a plurality of temperature sensing bags are respectively arranged on the air conditioner outer unit complete machine and the casing of the air conditioner inner unit complete machine, the plurality of temperature sensing bags on the air conditioner inner unit complete machine casing are connected with the inner unit main control board, the plurality of temperature sensing bags on the air conditioner outer unit complete machine casing are connected with the outer unit main control board, and the inner unit main control board and the outer unit main control board both collect temperature in real. The inner machine main control board comprises a temperature comparison subunit and an automatic temperature adjustment subunit.
The internal machine main control board is connected with the external machine main control board through a UART line, the plurality of temperature sensing packages on the whole machine shell of the internal machine of the air conditioner are respectively connected with the internal machine main control board through ADC pins, and the plurality of temperature sensing packages on the whole machine shell of the external machine of the air conditioner are respectively connected with the external machine main control board through ADC pins.
The first control unit in the outer unit main control panel calculates the outdoor average temperature as the current outdoor environment temperature and sends the outdoor average temperature to the inner unit main control panel, meanwhile, the second control unit of the inner unit main control panel calculates the indoor average temperature as the current indoor environment temperature, the inner unit main control panel receives the current outdoor environment temperature and compares the current outdoor environment temperature with the preset refrigeration target temperature through the temperature comparison subunit in the second control unit, when the current outdoor environment temperature is lower than the preset refrigeration target temperature, the temperature difference value between the current indoor environment temperature and the current outdoor environment temperature is calculated through the temperature automatic adjustment subunit, the operating frequency of the air conditioner compressor is obtained according to the temperature difference value, and the operating frequency is sent to the air conditioner compressor so as to control the air conditioner compressor to operate according to the operating frequency.
Note that the arrows in fig. 5 indicate the data transmission direction. TX denotes transmission and RX denotes reception.
The specific process of calculating the outdoor average temperature by the outdoor unit main control board is as follows: several holes are opened on the casing of the air conditioner outdoor unit to place the temperature sensing bags, and one air conditioner generally places 5 temperature sensing bags, and the temperature sensing bags are installed to avoid the side with hot air. The 5 temperature sensing packages are connected with 5 ADC pins of the outer unit main control board, the outer unit main control board samples the voltage value of each temperature sensing package connected with the outer unit main control board through the ADC, and the real-time temperature value of each temperature sensing package is obtained corresponding to a preset truth table. After the main control board obtains the temperature values of the 5 temperature sensing bags, the outdoor real-time average temperature is calculated through the following formula.
TOutdoor averaging(T outdoor 1+ T outdoor 2+ … … T outdoor N)/N
Similarly, the real-time average indoor temperature is obtained according to the method.
TIndoor averaging(1 + 2+ … … T indoor N/N in T indoor)
This embodiment air conditioning equipment's interior machine main control board when the air conditioner is in the refrigeration mode, judges whether current outdoor ambient temperature is less than and predetermines refrigeration target temperature, and when current outdoor ambient temperature is less than and predetermine refrigeration target temperature, according to the refrigerating output of current outdoor ambient temperature and current indoor ambient temperature's difference in temperature value control air conditioner makes current indoor ambient temperature reduce to current outdoor ambient temperature, according to current outdoor ambient temperature makes corresponding judgement with the comparison result of predetermineeing refrigeration target temperature, suitably adjusts the operation condition of air conditioner to make the indoor condition that is in the comfort level best, give play to the better superiority of air conditioner.
The embodiment utilizes the UART line of the variable frequency air conditioner for the communication between the inner machine main control board and the outer machine main control board, the design is simple and convenient, and the cost is saved.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The air conditioner refrigeration control method is characterized by comprising the following steps:
when the air conditioner is in a refrigeration mode, judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature:
and when the current outdoor environment temperature is lower than the preset target refrigeration temperature, controlling the refrigeration capacity of the air conditioner according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature, so that the current indoor environment temperature is reduced to the current outdoor environment temperature.
2. The method as claimed in claim 1, wherein the step of controlling the cooling capacity of the air conditioner according to the difference between the current outdoor ambient temperature and the current indoor ambient temperature to lower the current indoor ambient temperature to the current outdoor ambient temperature comprises the following steps:
calculating a temperature difference value between the current outdoor environment temperature and the current indoor environment temperature;
determining the operating frequency of the air-conditioning compressor according to the mapping relation between the temperature difference value and the operating frequency of the air-conditioning compressor;
and controlling the air conditioner compressor to operate according to the operating frequency so as to reduce the current indoor environment temperature to the current outdoor environment temperature.
3. The method of claim 2,
and searching the operating frequency of the air-conditioning compressor corresponding to the temperature difference value through a mapping relation table recording the corresponding relation between the temperature difference value and the operating frequency of the air-conditioning compressor.
4. The method of claim 1, wherein the current outdoor ambient temperature is obtained by:
collecting a plurality of outdoor ambient temperatures;
and calculating the average value of the outdoor environment temperature according to the plurality of outdoor environment temperatures as the current outdoor environment temperature.
5. The method of claim 1, wherein the current indoor ambient temperature is obtained by:
collecting a plurality of indoor ambient temperatures;
and calculating the average value of the indoor environment temperatures according to the plurality of indoor environment temperatures as the current indoor environment temperature.
6. An air conditioning apparatus, characterized by comprising:
the outdoor temperature sensor is used for acquiring the current outdoor environment temperature;
the indoor temperature sensor is used for acquiring the current indoor environment temperature;
a control module connected to the outdoor temperature sensor and the indoor temperature sensor, the control module comprising a memory having stored thereon a computer program which, when executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
7. Air conditioning apparatus according to claim 6,
the outdoor temperature sensor comprises a plurality of outdoor temperature sensing bulbs, and the plurality of outdoor temperature sensing bulbs are used for collecting a plurality of outdoor environment temperatures;
indoor temperature sensor includes a plurality of indoor temperature sensing package, and is a plurality of indoor temperature sensing package is used for gathering a plurality of indoor ambient temperature.
8. The air conditioning apparatus of claim 7, wherein the control module comprises:
a first control unit disposed on the main control panel of the outdoor unit and connected to the plurality of outdoor thermal bulbs, wherein the first control unit includes a first memory and a first processor, the first memory having a computer program stored thereon, and the computer program when executed by the first processor implements the following steps: calculating an average value of the outdoor environment temperatures according to the plurality of outdoor environment temperatures as a current outdoor environment temperature;
a second control unit disposed on the main control panel of the internal machine, and connected to the plurality of indoor thermal bulbs, wherein the second control unit includes a second memory and a second processor, and the second memory stores a computer program, and when the computer program is executed by the second processor, the following steps are implemented: calculating the average value of the indoor environment temperatures according to the plurality of indoor environment temperatures as the current indoor environment temperature, and judging whether the current outdoor environment temperature is less than a preset refrigeration target temperature when the air conditioner is in a refrigeration mode: and when the current outdoor environment temperature is lower than the preset refrigeration target temperature, controlling the refrigerating capacity of the air conditioner according to the temperature difference value between the current outdoor environment temperature and the current indoor environment temperature.
9. The air conditioning equipment of claim 8, comprising an air conditioner external unit and an air conditioner internal unit, wherein a plurality of the outdoor temperature sensing bulbs and the external unit main control board are integrated in the air conditioner external unit, and a plurality of the indoor temperature sensing bulbs and the internal unit main control board are integrated in the air conditioner internal unit.
10. The air conditioning equipment as claimed in claim 8, wherein a plurality of the outdoor thermal bulbs are correspondingly connected to a plurality of ADC pins of the outdoor unit main control board, a plurality of the indoor thermal bulbs are correspondingly connected to a plurality of ADC pins of the indoor unit main control board, and the outdoor unit main control board and the indoor unit main control board communicate with each other through any one of UART lines, WIFI modes, and bluetooth modes.
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