CN113048618A - Exhaust temperature obtaining method and device, electronic equipment and air conditioner - Google Patents
Exhaust temperature obtaining method and device, electronic equipment and air conditioner Download PDFInfo
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- CN113048618A CN113048618A CN202110448334.5A CN202110448334A CN113048618A CN 113048618 A CN113048618 A CN 113048618A CN 202110448334 A CN202110448334 A CN 202110448334A CN 113048618 A CN113048618 A CN 113048618A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump 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
- 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
Abstract
The invention provides an exhaust temperature obtaining method and device, electronic equipment and an air conditioner. The exhaust temperature obtaining method is applied to an air conditioner, the air conditioner comprises a compressor, an outdoor unit and an indoor unit, the outdoor unit is provided with a first heat exchanger, the indoor unit is provided with a second heat exchanger, and the exhaust temperature obtaining method comprises the following steps: acquiring operating frequency data of a compressor; acquiring first temperature data and/or second temperature data, wherein the first temperature data represents the temperature of the refrigerant after heat exchange through a first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through a second heat exchanger; and calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data. The exhaust temperature obtaining method provided by the invention has the characteristic of obtaining the exhaust temperature on the basis of not increasing the production cost.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an exhaust temperature obtaining method and device, electronic equipment and an air conditioner.
Background
The air conditioner needs to detect the exhaust temperature of the compressor in real time in the operation process, and the compressor needs to be stopped or subjected to frequency reduction treatment after the exhaust temperature is too high, so that the operation reliability is ensured. And part of the electronic expansion valve air conditioning system takes the exhaust temperature as the opening degree adjusting basis of the electronic expansion valve.
Currently, most air conditioners on the market mainly adopt a mode of configuring a temperature sensor on a compressor to directly acquire the exhaust temperature of the compressor. The additional addition of new components in this manner results in increased production costs of the air conditioner.
Disclosure of Invention
The invention solves the problem that the existing air conditioner detects the exhaust temperature to increase the production cost.
In order to solve the above problems, the present invention provides an exhaust temperature obtaining method, which has a feature of obtaining the exhaust temperature without increasing the production cost.
The embodiment of the invention provides a method for acquiring exhaust temperature, which is applied to an air conditioner, wherein the air conditioner comprises a compressor, an outdoor unit and an indoor unit, the outdoor unit is provided with a first heat exchanger, the indoor unit is provided with a second heat exchanger, and the method for acquiring the exhaust temperature comprises the following steps:
acquiring operating frequency data of the compressor;
acquiring first temperature data and/or second temperature data, wherein the first temperature data represents the temperature of the refrigerant after heat exchange through the first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger;
and calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data.
Because temperature sensors are arranged on the first heat exchanger arranged on the outdoor unit of the air conditioner and the second heat exchanger arranged on the indoor unit, the exhaust temperature acquisition method provided by the embodiment of the invention directly acquires first temperature data and second temperature data through the temperature sensors arranged on the first heat exchanger and the second heat exchanger, and calculates the exhaust temperature of the compressor according to the operation mode, the operation frequency data and the first temperature data or the second temperature data of the air conditioner. Therefore, compared with the prior art, the exhaust temperature obtaining method provided by the embodiment avoids additionally arranging a temperature sensor on the compressor, and reduces the production cost of the air conditioner.
In an alternative embodiment, the calculating of the discharge temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data, and the first temperature data or the second temperature data includes:
determining a calculation parameter according to the operation mode of the air conditioner and the operation frequency data;
calculating the exhaust temperature according to the first temperature data or the second temperature data, the calculation parameter and the operation frequency data.
In an alternative embodiment, the step of calculating the discharge temperature of the compressor based on the first or second temperature data, the calculation parameter, and the operating frequency data comprises:
in the case where the air conditioner is operated in a cooling mode or a dehumidifying mode, according to a formula:
calculating the exhaust temperature TD-F + TE1,
wherein TD characterizes the exhaust temperature, A characterizes the calculated parameter, F characterizes the operating frequency data, and TE1 characterizes the first temperature data.
In an alternative embodiment, the step of calculating the discharge temperature of the compressor according to the first or second temperature data, the calculation parameter and the operating frequency data further comprises:
in the case where the air conditioner is operated in a heating mode, according to the formula:
calculating the exhaust temperature TD-F + TE2,
wherein TD characterizes the exhaust temperature, A characterizes the calculated parameter, F characterizes the operating frequency data, and TE2 characterizes the second temperature data.
In an optional embodiment, the step of determining the calculation parameter according to the operation mode of the air conditioner and the operation frequency data includes:
in the case where the air conditioner is operated in a cooling mode or a dehumidifying mode,
when the operating frequency data is larger than a first threshold value, selecting the calculation parameter in a first value-taking interval;
when the operating frequency data is larger than a second threshold and smaller than or equal to the first threshold, selecting the calculation parameter in a second value interval, wherein the lower limit value of the first value interval is larger than the lower limit value of the second value interval, and the upper limit value of the first value interval is larger than the upper limit value of the second value interval;
and when the operating frequency data is less than or equal to the second threshold, selecting the calculation parameter in a third value interval, wherein the upper limit value of the third value interval is equal to the lower limit value of the second value interval.
In an optional embodiment, the step of determining the calculation parameter according to the operation mode of the air conditioner and the operation frequency data further includes:
in the case where the air conditioner is operated in a heating mode,
when the operating frequency data is larger than a third threshold value, selecting the calculation parameter in a fourth value interval;
when the operating frequency data is larger than a fourth threshold and smaller than or equal to the third threshold, selecting the calculation parameter in a fifth value interval, wherein the lower limit value of the fifth value interval is equal to the upper limit value of the fourth value interval;
and when the operating frequency data is less than or equal to the fourth threshold, selecting the calculation parameter in a sixth value interval, wherein the lower limit value of the sixth value interval is equal to the upper limit value of the fifth value interval.
The embodiment of the present invention further provides an exhaust temperature acquiring device applied to an air conditioner, wherein the air conditioner includes a compressor, an outdoor unit and an indoor unit, the outdoor unit is provided with a first heat exchanger, the indoor unit is provided with a second heat exchanger, and the exhaust temperature acquiring device includes:
the first acquisition module is used for acquiring the operating frequency data of the compressor;
the second acquisition module is used for acquiring first temperature data and/or second temperature data, wherein the first temperature data represents the temperature of the refrigerant after heat exchange through the first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger;
and the calculation module is used for calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data.
Because temperature sensors are arranged on the first heat exchanger arranged on the outdoor unit of the air conditioner and the second heat exchanger arranged on the indoor unit, the exhaust temperature acquisition device provided by the embodiment of the invention directly acquires first temperature data and second temperature data detected by the temperature sensors arranged on the first heat exchanger and the second heat exchanger through the second acquisition module, and calculates the exhaust temperature of the compressor according to the operation mode, the operation frequency data and the first temperature data or the second temperature data of the air conditioner through the calculation module. Therefore, compared with the prior art, the exhaust temperature acquiring device provided by the embodiment avoids additionally arranging a temperature sensor on the compressor, and reduces the production cost of the air conditioner.
In an alternative embodiment, the calculation module comprises:
the selection submodule is used for determining calculation parameters according to the operation mode of the air conditioner and the operation frequency data;
and the calculation submodule is used for calculating the exhaust temperature according to the first temperature data or the second temperature data, the calculation parameters and the operation frequency data.
An embodiment of the present invention also provides an electronic device, including:
one or more processors;
a memory for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the exhaust temperature acquisition method. The exhaust gas temperature acquisition method includes: acquiring operating frequency data of the compressor; acquiring first temperature data and/or second temperature data, wherein the first temperature data represents the temperature of the refrigerant after heat exchange through the first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger; and calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data.
An embodiment of the present invention further provides an air conditioner, including the exhaust temperature obtaining device, where the exhaust temperature obtaining device includes: the first acquisition module is used for acquiring the operating frequency data of the compressor; the second acquisition module is used for acquiring first temperature data and/or second temperature data, wherein the first temperature data represents the temperature of the refrigerant after heat exchange through the first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger; and the calculation module is used for calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data.
Drawings
FIG. 1 is a block flow diagram of an exhaust temperature acquisition method provided by an embodiment of the present invention;
FIG. 2 is a block flow diagram illustrating the sub-steps of step S103 in FIG. 1;
FIG. 3 is a block diagram of a sub-step flow of sub-step S1031 in FIG. 2;
FIG. 4 is a block flow diagram of another sub-step of substep S1031 of FIG. 2;
FIG. 5 is a block diagram of a sub-step flow diagram of sub-step S1032 of FIG. 2;
FIG. 6 is a block flow diagram of another substep of substep S1032 of FIG. 2;
fig. 7 is a block diagram of an exhaust temperature acquisition apparatus according to an embodiment of the present invention;
FIG. 8 is a block diagram of the structure of the computing module of FIG. 7;
fig. 9 is a block diagram of an electronic device according to an embodiment of the present invention.
Description of reference numerals:
10-an electronic device; 11-a processor; 12-a memory; 13-a bus; 100-exhaust temperature acquisition means; 110-a first acquisition module; 130-a second acquisition module; 150-a calculation module; 151-select submodule; 153-calculation submodule.
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.
Referring to fig. 1, fig. 1 is a flow chart of an exhaust temperature obtaining method according to the present embodiment. The exhaust temperature obtaining method is applied to an air conditioner, the air conditioner comprises a compressor, an outdoor unit and an indoor unit, the outdoor unit is provided with a first heat exchanger, the indoor unit is provided with a second heat exchanger, and temperature sensors are arranged on the first heat exchanger and the second heat exchanger. The exhaust temperature obtaining method is used for obtaining the exhaust temperature of the compressor and comprises the following steps:
step S101: operating frequency data of the compressor is acquired.
In practical application, after the air conditioner receives a starting instruction sent by a user, the controller of the air conditioner analyzes an operation mode corresponding to the starting instruction, if the starting instruction corresponds to a ventilation mode, the exhaust temperature of the compressor does not need to be acquired, and the air conditioner is directly started and operates the ventilation mode. If the starting instruction corresponds to one of a refrigeration mode, a dehumidification mode and a heating mode, a controller of the air conditioner detects the states of the temperature sensors arranged on the first heat exchanger and the second heat exchanger, if the states of the temperature sensors at two positions are normal, the air conditioner is started normally, and if the temperature sensor at one position has a fault, the air conditioner is not started, and a fault alarm is carried out.
Under the condition that the air conditioner is normally started, the running frequency of the compressor is controlled by the controller, and the controller directly acquires the running frequency data of the compressor.
Step S102: first temperature data and/or second temperature data are acquired.
The first temperature data is obtained by detecting a temperature sensor arranged on the first heat exchanger, and represents the temperature of the refrigerant after heat exchange through the first heat exchanger. The second temperature data is detected by a temperature sensor arranged on the second heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger.
The first temperature data and the second temperature data represent saturation temperatures corresponding to condensation pressures, and the exhaust temperature of the compressor can be indirectly calculated by combining the exhaust superheat degree in the compression process of the compressor.
Step S103: and calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data.
The operation modes of the air conditioner further include a cooling mode, a dehumidifying mode and a heating mode, except for the ventilation mode. Since the discharge temperature represents the temperature of the refrigerant outlet when the compressor is in operation, i.e. the high-pressure side, the high-pressure side in the cooling mode is the same as that in the dehumidification mode, and both the first heat exchanger and the second heat exchanger are configured in the outdoor unit, while the high-pressure side in the heating mode is the second heat exchanger.
Therefore, the discharge temperature of the compressor is calculated according to the operation frequency data and the first temperature data for the cooling mode or the dehumidification mode, and the discharge temperature of the compressor is calculated according to the operation frequency data and the second temperature data for the heating mode.
Referring to fig. 2, fig. 2 is a block diagram illustrating a flow of sub-steps of step S103, wherein step S103 includes:
substep S1031: and determining a calculation parameter according to the operation mode and the operation frequency data of the air conditioner.
The exhaust temperature of the compressor can be obtained by summing the saturation temperature corresponding to the actual condensing pressure and the superheat degree of the exhaust gas of the compressor, and the first temperature data and the second temperature data represent the saturation temperature corresponding to the condensing pressure. The exhaust superheat degree is related to the operation frequency data of the compressor, and the exhaust superheat degree and the operation frequency data have different relations for different working modes.
In the embodiment, the exhaust superheat degree is equal to the product of the operating frequency data and the calculation parameter in different operating modes obtained by adopting a test mode, and the calculation parameter has different values corresponding to different operating frequency data in different operating modes.
Referring to fig. 3, fig. 3 is a block diagram illustrating a sub-step flow of sub-step S1031, and sub-step S1031 includes:
sub-step S1031 a: under the condition that the air conditioner operates in a cooling mode or a dehumidifying mode, when the operating frequency data is larger than a first threshold value, the calculation parameters are selected in a first value interval.
Sub-step S1031 b: and when the operating frequency data is greater than a second threshold and less than or equal to a first threshold, selecting a calculation parameter in a second value interval, wherein the lower limit value of the first value interval is greater than the lower limit value of the second value interval, and the upper limit value of the first value interval is greater than the upper limit value of the second value interval.
Sub-step S1031 c: and when the operating frequency data is less than or equal to a second threshold value, selecting a calculation parameter in a third value interval, wherein the upper limit value of the third value interval is equal to the lower limit value of the second value interval.
The substep S1031a, the substep S1031b and the substep S1031c are selection methods of calculating parameters in the case where the air conditioner is operated in the cooling mode or the dehumidifying mode. In this embodiment, the first threshold is 60HZ, the first value range is 0.4 to 0.6, the second threshold is 30HZ, the second value range is 0.3 to 0.5, and the third value range is 0.1 to 0.3. The higher the compressor operating frequency, the greater the operating frequency data, the higher the corresponding system pressure, and the higher the discharge temperature. In the heating mode or the dehumidification mode, the higher the operating frequency of the compressor is, the higher the outdoor environment temperature is, and the corresponding heat dissipation effect is poor, so that the calculation parameter value is increased.
Referring to fig. 4, fig. 4 is a flow chart illustrating another sub-step of sub-step S1031, where the sub-step S1031 includes:
sub-step S1031 d: and under the condition that the air conditioner operates in a heating mode, when the operating frequency data is greater than a third threshold value, selecting a calculation parameter in a fourth value interval.
Sub-step S1031 e: and when the operating frequency data is greater than a fourth threshold and less than or equal to a third threshold, selecting a calculation parameter in a fifth value interval, wherein the lower limit value of the fifth value interval is equal to the upper limit value of the fourth value interval.
Sub-step S1031 f: and when the operating frequency data is less than or equal to a fourth threshold value, selecting a calculation parameter in a sixth value interval, wherein the lower limit value of the sixth value interval is equal to the upper limit value of the fifth value interval.
The substep S1031d, the substep S1031e and the substep S1031f are all selection methods of calculation parameters in the case where the air conditioner is operated in the heating mode. In this embodiment, the third threshold is 80HZ, the fourth value range is 0.2 to 0.3, the fourth threshold is 40HZ, the fifth value range is 0.3 to 0.4, and the sixth value range is 0.4 to 0.6. Under the heating mode, the higher the running frequency of the compressor is, the lower the indoor environment temperature is, and the corresponding heat dissipation effect is good, so the calculation parameter value is reduced.
Referring to fig. 2, step S103 further includes:
and a substep S1032 of calculating the exhaust temperature according to the first temperature data or the second temperature data, the calculation parameter and the operation frequency data.
Referring to fig. 5, fig. 5 is a block flow diagram of a sub-step of the sub-step S1032, the sub-step S1032 includes:
sub-step S1032 a: in the case where the air conditioner is operated in a cooling mode or a dehumidifying mode, according to the formula: the exhaust temperature is calculated TD F + TE 1.
Wherein TD represents the exhaust temperature, a represents the calculated parameter, F represents the operating frequency data, and TE1 represents the first temperature data.
It is to be understood that, in the cooling mode or the dehumidification mode, the first temperature data represents a saturation temperature corresponding to the condensing pressure, the product of the calculation parameter and the operation frequency data is equal to the degree of superheat of the exhaust gas, and the sum of the degree of superheat of the exhaust gas and the saturation temperature is equal to the temperature of the exhaust gas.
Referring to fig. 6, fig. 6 is a flow chart showing another sub-step of sub-step S1032, and the sub-step S1032 includes:
sub-step S1032 b: in the case where the air conditioner is operated in a heating mode, according to the formula: the exhaust temperature is calculated TD F + TE 2.
Wherein TD represents the exhaust temperature, A represents the calculated parameter, F represents the operating frequency data, and TE2 represents the second temperature data.
It is to be understood that, in the heating mode, the second temperature data represents a saturation temperature corresponding to the condensing pressure, the product of the calculation parameter and the operation frequency data is equal to the exhaust superheat, and the sum of the exhaust superheat and the saturation temperature is equal to the exhaust temperature.
Therefore, the exhaust temperature obtaining method provided by the embodiment of the application can obtain the exhaust temperature of the compressor under the condition that no new element is additionally arranged, the production cost of the air conditioner is reduced, and the failure rate of the air conditioner is also reduced without additionally arranging a new element.
Referring to fig. 7, fig. 7 is a block diagram illustrating a structure of an exhaust temperature obtaining apparatus 100 according to the present embodiment. The exhaust temperature acquisition device 100 is applied to an air conditioner, the air conditioner comprises a compressor, an outdoor unit and an indoor unit, the outdoor unit is provided with a first heat exchanger, the indoor unit is provided with a second heat exchanger, and temperature sensors are arranged on the first heat exchanger and the second heat exchanger. The exhaust temperature acquisition apparatus 100 includes:
the first obtaining module 110 is configured to obtain operating frequency data of the compressor.
The first acquisition module 110 executes step S101 in the exhaust temperature acquisition method described above.
The second obtaining module 130 is configured to obtain the first temperature data and/or the second temperature data.
The first temperature data represents the temperature of the refrigerant after heat exchange through the first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger. The second obtaining module 130 performs step S102.
And the calculating module 150 is used for calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data.
The operation modes of the air conditioner further include a cooling mode, a dehumidifying mode and a heating mode, except for the ventilation mode. Since the discharge temperature represents the temperature of the refrigerant outlet when the compressor is in operation, i.e. the high-pressure side, the high-pressure side in the cooling mode is the same as that in the dehumidification mode, and both the first heat exchanger and the second heat exchanger are configured in the outdoor unit, while the high-pressure side in the heating mode is the second heat exchanger.
Therefore, the discharge temperature of the compressor is calculated according to the operation frequency data and the first temperature data for the cooling mode or the dehumidification mode, and the discharge temperature of the compressor is calculated according to the operation frequency data and the second temperature data for the heating mode. That is, the calculation module 150 performs step S103.
Referring to fig. 8, fig. 8 is a block diagram illustrating a structure of the calculation module 150. The calculation module 150 includes:
and a selection sub-module 151 for determining calculation parameters according to the operation mode and the operation frequency data of the air conditioner.
The selection sub-module 151 performs sub-step S1031, including sub-step S1031a, sub-step S1031b, sub-step S1031c, sub-step S1031d, sub-step S1031e and sub-step S1031f of sub-step S1031.
The exhaust temperature of the compressor can be obtained by summing the saturation temperature corresponding to the actual condensing pressure and the superheat degree of the exhaust gas of the compressor, and the first temperature data and the second temperature data represent the saturation temperature corresponding to the condensing pressure. The exhaust superheat degree is related to the operation frequency data of the compressor, and the exhaust superheat degree and the operation frequency data have different relations for different working modes.
In the embodiment, the exhaust superheat degree is equal to the product of the operating frequency data and the calculation parameter in different operating modes obtained by adopting a test mode, and the calculation parameter has different values corresponding to different operating frequency data in different operating modes.
And the calculating submodule 153 is used for calculating the exhaust temperature according to the first temperature data or the second temperature data, the calculating parameter and the operating frequency data.
The calculation submodule 153 performs a sub-step S1032, including a sub-step S1032a and a sub-step S1032b of the sub-step S1032.
It is to be understood that, in the cooling mode or the dehumidification mode, the first temperature data represents a saturation temperature corresponding to the condensing pressure, in the heating mode, the second temperature data represents a saturation temperature corresponding to the condensing pressure, a product between the calculation parameter and the operation frequency data is equal to the degree of superheat of the exhaust gas, and a sum of the degree of superheat of the exhaust gas and the saturation temperature is equal to the temperature of the exhaust gas.
It can be seen that the exhaust temperature obtaining apparatus 100 provided in the embodiment of the present application can obtain the exhaust temperature of the compressor without additionally adding a new element, thereby reducing the production cost of the air conditioner, and further reducing the failure rate of the air conditioner without additionally adding a new element.
Referring to fig. 9, fig. 9 is a block diagram illustrating an electronic device 10 according to an embodiment of the present disclosure. The electronic device 10 includes a processor 11, a memory 12, and a bus 13, and the processor 11 is connected to the memory 12 through the bus 13.
The memory 12 is used for storing a program, such as the exhaust temperature acquiring apparatus 100 shown in fig. 7, the exhaust temperature acquiring apparatus 100 includes at least one software functional module which can be stored in the memory 12 in a form of software or firmware (firmware) or solidified in an Operating System (OS) of the electronic device 10, and the processor 11 executes the program after receiving an execution instruction to implement the exhaust temperature acquiring method disclosed in the above embodiment.
The Memory 12 may include a Random Access Memory (RAM) and may also include a non-volatile Memory (NVM).
The processor 11 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 11. The processor 11 may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Micro Control Unit (MCU), a Complex Programmable Logic Device (CPLD), a Field Programmable Gate Array (FPGA), and an embedded ARM.
The present embodiment also provides an air conditioner, which includes the exhaust temperature obtaining apparatus 100 provided in the foregoing embodiment.
In summary, the exhaust temperature obtaining method and device, the electronic device and the air conditioner provided by the embodiment of the application can obtain the exhaust temperature of the compressor under the condition that no new element is additionally arranged, so that the production cost of the air conditioner is reduced, and the failure rate of the air conditioner is also reduced without additionally arranging a new element.
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. The exhaust temperature obtaining method is applied to an air conditioner, the air conditioner comprises a compressor, an outdoor unit and an indoor unit, the outdoor unit is provided with a first heat exchanger, the indoor unit is provided with a second heat exchanger, and the exhaust temperature obtaining method is characterized by comprising the following steps of:
acquiring operating frequency data of the compressor;
acquiring first temperature data and/or second temperature data, wherein the first temperature data represents the temperature of the refrigerant after heat exchange through the first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger;
and calculating the exhaust temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data and the first temperature data or the second temperature data.
2. The discharge temperature obtaining method according to claim 1, wherein the step of calculating the discharge temperature of the compressor according to the operation mode of the air conditioner, the operation frequency data, and the first temperature data or the second temperature data includes:
determining a calculation parameter according to the operation mode of the air conditioner and the operation frequency data;
calculating the exhaust temperature according to the first temperature data or the second temperature data, the calculation parameter and the operation frequency data.
3. The exhaust temperature acquisition method according to claim 2, wherein the step of calculating the exhaust temperature of the compressor based on the first temperature data or the second temperature data, the calculation parameter, and the operating frequency data includes:
in the case where the air conditioner is operated in a cooling mode or a dehumidifying mode, according to a formula:
calculating the exhaust temperature TD-F + TE1,
wherein TD characterizes the exhaust temperature, A characterizes the calculated parameter, F characterizes the operating frequency data, and TE1 characterizes the first temperature data.
4. The discharge temperature acquisition method according to claim 2, wherein the step of calculating the discharge temperature of the compressor based on the first temperature data or the second temperature data, the calculation parameter, and the operating frequency data further comprises:
in the case where the air conditioner is operated in a heating mode, according to the formula:
calculating the exhaust temperature TD-F + TE2,
wherein TD characterizes the exhaust temperature, A characterizes the calculated parameter, F characterizes the operating frequency data, and TE2 characterizes the second temperature data.
5. The exhaust temperature acquisition method according to claim 2, wherein the step of determining the calculation parameter according to the operation mode of the air conditioner and the operation frequency data comprises:
in the case where the air conditioner is operated in a cooling mode or a dehumidifying mode,
when the operating frequency data is larger than a first threshold value, selecting the calculation parameter in a first value-taking interval;
when the operating frequency data is larger than a second threshold and smaller than or equal to the first threshold, selecting the calculation parameter in a second value interval, wherein the lower limit value of the first value interval is larger than the lower limit value of the second value interval, and the upper limit value of the first value interval is larger than the upper limit value of the second value interval;
and when the operating frequency data is less than or equal to the second threshold, selecting the calculation parameter in a third value interval, wherein the upper limit value of the third value interval is equal to the lower limit value of the second value interval.
6. The exhaust temperature acquisition method according to claim 2, wherein the step of determining a calculation parameter according to the operation mode of the air conditioner and the operation frequency data further comprises:
in the case where the air conditioner is operated in a heating mode,
when the operating frequency data is larger than a third threshold value, selecting the calculation parameter in a fourth value interval;
when the operating frequency data is larger than a fourth threshold and smaller than or equal to the third threshold, selecting the calculation parameter in a fifth value interval, wherein the lower limit value of the fifth value interval is equal to the upper limit value of the fourth value interval;
and when the operating frequency data is less than or equal to the fourth threshold, selecting the calculation parameter in a sixth value interval, wherein the lower limit value of the sixth value interval is equal to the upper limit value of the fifth value interval.
7. The utility model provides an exhaust temperature acquisition device, is applied to the air conditioner, the air conditioner includes compressor, off-premises station and indoor set, the off-premises station is provided with first heat exchanger, the indoor set is provided with the second heat exchanger, its characterized in that, exhaust temperature acquisition device includes:
a first acquisition module (110) for acquiring operating frequency data of the compressor;
the second acquisition module (130) is used for acquiring first temperature data and/or second temperature data, wherein the first temperature data represents the temperature of the refrigerant after heat exchange through the first heat exchanger, and the second temperature data represents the temperature of the refrigerant after heat exchange through the second heat exchanger;
a calculation module (150) for calculating a discharge temperature of the compressor according to an operation mode of the air conditioner, the operation frequency data, and the first temperature data or the second temperature data.
8. The exhaust gas temperature acquisition apparatus according to claim 7, wherein the calculation module includes:
a selection submodule (151) for determining a calculation parameter according to the operation mode of the air conditioner and the operation frequency data;
a calculation submodule (153) for calculating the exhaust gas temperature based on the first or second temperature data, the calculation parameter and the operating frequency data.
9. An electronic device, characterized in that the electronic device comprises:
one or more processors (11);
memory (12) for storing one or more programs which, when executed by the one or more processors (11), cause the one or more processors (11) to carry out the exhaust gas temperature acquisition method according to any one of claims 1-6.
10. An air conditioner characterized by comprising the exhaust gas temperature acquisition apparatus according to claim 7 or 8.
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