CN114992789A - Air conditioner air outlet temperature detection method, air conditioner indoor unit and air conditioner - Google Patents

Abstract

The invention provides a detection method of air conditioner air outlet temperature, an air conditioner indoor unit and an air conditioner, wherein the air conditioner comprises a first air outlet and a second air outlet, and the detection method of the air conditioner air outlet temperature comprises the following steps: acquiring the tuyere temperature of the first tuyere; estimating the tuyere temperature difference between the first tuyere and the second tuyere; and determining the tuyere temperature of the second tuyere according to the tuyere temperature of the first tuyere and the tuyere temperature difference. According to the air conditioner air outlet temperature detection method, the air conditioner indoor unit and the air conditioner, the problem of adding an entity temperature sensor can be avoided, and the air outlet temperature of the other air outlet of the two air outlets can be determined according to the air outlet temperature of any one air outlet of the two air outlets and the estimated air outlet temperature difference.

Description

Air conditioner tuyere temperature detection method, air conditioner indoor unit and air conditioner

technical field

The present invention relates to the technical field of air conditioners, in particular to a method for detecting the temperature of an air outlet of an air conditioner, an indoor unit of an air conditioner and an air conditioner.

Background technique

As a commonly used temperature adjustment equipment, air conditioners are more and more widely used in daily life and production. Users can set the operation mode of the air conditioner by operating the panel or remote control of the air conditioner to control the air conditioner for cooling or heating. So as to meet the user's requirements for indoor environment comfort.

An air conditioner generally includes an air outlet and a return air outlet. The air outlet is used to discharge temperature-regulated air to the indoor environment, and the return air outlet is used to absorb ambient air.

During the use of the air conditioner, the user can feel the temperature of the air supply from the air outlet, and the air supply temperature truly reflects the heating effect or cooling effect of the air conditioner to the user.

SUMMARY OF THE INVENTION

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

In view of the importance of the temperature detection of the tuyere of the air conditioner, one of the technical problems to be solved by the present invention is how to detect the tuyere temperature of another tuyere of the air conditioner based on the tuyere temperature of one tuyere of the air conditioner without using a physical temperature sensor . For this reason, the first object of the present invention is to propose a method for detecting the temperature of an air-conditioning tuyere, which can utilize the tuyere temperature of any tuyere in the first tuyere and the second tuyere, and the estimated tuyere temperature difference to calculate the first tuyere. and the tuyere temperature of another tuyere in the second tuyere, for example, the temperature difference between the return air temperature and the tuyere temperature of the return tuyere can be used to determine the outlet air temperature of the tuyere outlet, so that the tuyere air temperature that meets the desired temperature can be provided, which facilitates precise control of the user. The cooling or heating effect directly felt.

The second object of the present invention is to provide a device for detecting the temperature of an air-conditioning tuyere.

The third object of the present invention is to provide an air conditioner indoor unit.

The fourth object of the present invention is to provide an air conditioner.

A fifth object of the present invention is to provide a computer-readable storage medium.

In order to achieve the above object, an embodiment of the first aspect of the present invention provides a method for detecting the temperature of an air-conditioning tuyere. The air conditioner includes a first tuyere and a second tuyere. The method for detecting the temperature of an air-conditioning tuyere includes: obtaining the first tuyere The tuyere temperature of the tuyere; the tuyere temperature difference between the first tuyere and the second tuyere is estimated; the tuyere temperature of the second tuyere is determined according to the tuyere temperature of the first tuyere and the temperature difference of the tuyere .

According to an embodiment of the present invention, one of the first air outlet and the second air outlet may be a return air outlet, and the other of the first air outlet and the second air outlet may be an air outlet, wherein , the step of estimating the air outlet temperature difference between the first air outlet and the second air outlet may include: determining the air volume of the air outlet of the air conditioner; determining the internal unit capacity of the air conditioner; According to the capacity of the indoor unit, estimate the temperature difference of the tuyere.

According to an embodiment of the present invention, based on the air volume and the capacity of the internal unit, the step of estimating the temperature difference of the tuyere may include: determining the air specific heat capacity and air density of the environment where the air conditioner is located; calculating the air specific heat capacity , the product of the air density and the air volume; calculate the ratio of the capacity of the internal machine to the product, and estimate the temperature difference of the tuyere according to the ratio.

According to an embodiment of the present invention, the step of determining the internal unit capacity of the air conditioner may include: determining the evaporating temperature and condensing temperature of the refrigerant of the air conditioner and the compressor frequency of the air conditioner; The compressor frequency is used to determine the internal unit capacity of the air conditioner.

According to an embodiment of the present invention, the tuyere temperature of the first tuyere may be acquired in at least one of the following manners: acquiring the tuyere temperature of the first tuyere from a temperature sensor disposed at the first tuyere; The tuyere temperature of the first tuyere is acquired from a room temperature sensor provided in the air conditioner; the tuyere temperature of the first tuyere is acquired from an electronic device in a communication connection state with the air conditioner.

In order to achieve the above object, an embodiment of the second aspect of the present invention provides a device for detecting the temperature of an air-conditioning tuyere. The air conditioner includes a first tuyere and a second tuyere. The device for detecting the temperature of the air-conditioning tuyere includes: an acquisition unit for acquiring the The tuyere temperature of the first tuyere; the estimation unit, the tuyere temperature difference between the first tuyere and the second tuyere is estimated; the determining unit, according to the tuyere temperature of the first tuyere and the temperature difference of the tuyere , and determine the tuyere temperature of the second tuyere.

According to an embodiment of the present invention, one of the first tuyere and the second tuyere may be a return air port, and the other of the first tuyere and the second tuyere may be an air outlet, so The estimating unit can estimate the temperature difference of the tuyere by: determining the air volume of the air outlet of the air conditioner; determining the internal unit capacity of the air conditioner; Air outlet temperature difference.

According to an embodiment of the present invention, the estimating unit may estimate the temperature difference of the air outlet based on the air volume and the capacity of the internal unit by: determining the air specific heat capacity and air density of the environment where the air conditioner is located; calculating The product of the air specific heat capacity, the air density and the air volume; the ratio of the capacity of the internal machine to the product is calculated, and the temperature difference of the tuyere is estimated according to the ratio.

In order to achieve the above object, an embodiment of the third aspect of the present invention provides an air conditioner indoor unit, the air conditioner indoor unit includes a memory and a processor, wherein the memory stores a computer program, and the processor executes a program stored in the The computer program in the memory implements the method for detecting the temperature of the air-conditioning tuyere according to the first aspect.

According to an embodiment of the present invention, the first air port is an air return port, the second air port is an air outlet, and a temperature sensor is provided at only the air return port among the air return port and the air outlet, so The temperature sensor is used to detect the return air temperature of the return air outlet.

In order to achieve the above objective, an embodiment of the fourth aspect of the present invention provides an air conditioner, the air conditioner includes: the air conditioner indoor unit as described in the third aspect.

In order to achieve the above object, the embodiment of the fifth aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the temperature of the air-conditioning tuyere according to the first aspect is realized. Detection method.

The technical solutions provided by the embodiments of the present invention can achieve at least one of the following beneficial effects:

According to the method for detecting the air outlet temperature of the air conditioner, the indoor unit of the air conditioner and the air conditioner, the problem of adding a physical temperature sensor can be avoided, and the air outlet temperature of another air outlet is determined according to the air outlet temperature of one air outlet and the estimated air outlet temperature difference, thereby realizing The tuyere temperature of the two tuyere of the air conditioner is provided at the same time without adding a physical temperature sensor.

Further, according to the method for detecting the air outlet temperature of the air conditioner, the air conditioner indoor unit and the air conditioner, the air outlet temperature difference can be estimated based on the air volume of the air outlet of the air conditioner and the capacity of the inner unit of the air conditioner, so as to calculate the air outlet temperature quickly and accurately.

Further, according to the method for detecting the temperature of the air outlet of the air conditioner, the indoor unit of the air conditioner and the air conditioner, the temperature of the outlet air expected by the user can be more accurately provided, and the comfortable experience of the user can be improved.

Further, according to the method for detecting the air outlet temperature of the air conditioner, the indoor unit of the air conditioner and the air conditioner of the present invention, the failure of the set temperature sensor can be monitored, and the faulty temperature sensor can be alarmed, repaired or replaced in time.

Additional aspects and advantages of the present invention will become apparent in the description section that follows, or will be learned by practice of the present invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, it being understood that the following drawings illustrate only certain embodiments of the invention Therefore, it should not be regarded as a limitation on the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort. In the attached image:

Fig. 1 shows the structural schematic diagram of the air return and the air outlet of an air conditioner according to an embodiment of the present invention;

2 shows a schematic flowchart of a method for detecting the temperature of an air-conditioning tuyere according to an embodiment of the present invention;

3 shows a schematic flowchart of the step of estimating the temperature difference of the air outlet in the method for detecting the air outlet temperature of the air conditioner according to the embodiment of the present invention;

4 shows a schematic flowchart of a step of estimating the air outlet temperature difference between the first air outlet and the second air outlet based on the air volume of the air outlet of the air conditioner and the internal unit capacity of the air conditioner according to an embodiment of the present invention;

FIG. 5 shows a schematic block diagram of an apparatus for detecting the temperature of an air-conditioning tuyere according to an embodiment of the present invention.

Reference number:

11: return air outlet, 12: air outlet, 20: evaporator, 100: acquisition unit, 200: estimation unit, 300: determination unit.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

It should be noted here that the "air conditioner" in the context of the present invention may refer to a split-type air conditioner having an indoor part and an outdoor part, or an integrated air conditioner in which the air conditioner is entirely located indoors, or a window mounted on a window air conditioner.

The following describes a method for detecting air-conditioning tuyere temperature, an air-conditioning tuyere temperature detecting device, an air-conditioning indoor unit, an air conditioner, and a computer-readable storage medium according to embodiments of the present invention with reference to the accompanying drawings.

FIG. 1 shows a schematic structural diagram of the return air and the air outlet of an air conditioner according to an embodiment of the present invention.

As shown in FIG. 1 , the air in the environment where the air conditioner of the embodiment of the present invention is located may be sucked into the air conditioner through the air return port 11 . Then, the air passes through the evaporator 20 under the action of the indoor fan (not shown) of the air conditioner. During this process, the air can exchange heat with the evaporator 20 to adjust the temperature of the air, that is, to cool or heat the temperature of the air. . The air temperature-regulated through the evaporator 20 can be discharged back to the surrounding environment through the air outlet 12 under the action of the indoor fan, so as to achieve the effect of cooling or heating the environment. Here, when the air conditioner is a split type air conditioner, the indoor fan may be a fan provided in the indoor unit of the air conditioner; when the air conditioner is an integrated air conditioner, the indoor fan may refer to a fan that the air conditioner blows air indoors.

Here, the structure of FIG. 1 only schematically shows the air conditioner of the embodiment of the present invention, and the structure of the air conditioner of the embodiment of the present invention is not limited thereto, and it may be other forms of air conditioners, such as evaporators, return air vents and air outlets. Arrangement positions and specific structures may be arbitrary.

FIG. 2 shows a schematic flowchart of a method for detecting the temperature of an air-conditioning tuyere according to an embodiment of the present invention.

The air conditioner of the embodiment of the present invention may include a first air outlet and a second air outlet. In one example, the air conditioner of the embodiment of the present invention may be a split type air conditioner, and the first air outlet and the second air outlet may be provided in the indoor unit of the air conditioner. In another example, the air conditioner of the embodiment of the present invention may be an integrated air conditioner or Window type air conditioner, in this case, the first air outlet and the second air outlet may be provided in a part of the air conditioner that faces indoors or is located indoors.

As shown in FIG. 2 , the method for detecting the temperature of an air-conditioning tuyere according to an embodiment of the present invention includes the following steps:

Step S100, acquiring the tuyere temperature of the first tuyere.

As an example, the first air outlet described in the embodiment of the present invention may be a return air outlet or an air outlet, and the following descriptions will be made for the two cases respectively.

In one case, the first air outlet of the air conditioner according to the embodiment of the present invention is a return air outlet.

In some examples, a temperature sensor may be provided at the first tuyere, and the tuyere temperature of the first tuyere may be obtained from the temperature sensor. In this case, the temperature sensor can be used to detect the air outlet temperature of the return air outlet (also referred to as return air temperature, inlet air temperature).

In other examples, for the case where the first air outlet of the air conditioner is a return air outlet, the air outlet temperature of the first air outlet can also be obtained from a room temperature sensor provided in the air conditioner. In this case, room temperature can be used as the return air temperature.

In still other examples, for the case where the first air outlet of the air conditioner is a return air outlet, the air outlet temperature of the first air outlet may also be obtained from an electronic device in a state of communication connection with the air conditioner.

Specifically, the room temperature sensor may not be provided in the air conditioner, but the room temperature may be obtained from other electronic devices. For example, the air conditioner can be connected to the smart home IoT, and other electronic devices in the IoT can have room temperature detection function, and can send the room temperature data to the air conditioner, and the air conditioner can use the room temperature as the air outlet temperature of the return air outlet. Electronic devices include but are not limited to refrigerators, HVAC control systems, lighting devices, infrared monitoring systems, etc., as long as they can detect the indoor ambient temperature and send it to the air conditioner. Here, the electronic device can be in the same indoor environment as the air conditioner.

In another case, the first air outlet of the air conditioner according to the embodiment of the present invention is an air outlet.

In this case, a temperature sensor may be provided at the air outlet, and at this time, the temperature sensor may be used to detect the air outlet temperature of the air outlet (also referred to as outlet air temperature, supply air temperature).

It should be understood that, in the above two cases where the first air outlet is a return air outlet or an air outlet, the temperature sensor disposed at the first air outlet may be capable of directly or indirectly detecting the air outlet temperature of the first air outlet and outputting the detected temperature. The sensor for the obtained temperature signal can be set at the first tuyere separately to detect the tuyere temperature of the first tuyere, or it can be integrated with other devices, for example, it can be used with other components such as the pipeline for detecting the evaporator. temperature sensor integration settings for the temperature.

It should be noted that the temperature sensor in the embodiment of the present invention is disposed at the first air outlet, which may mean that the temperature sensor is disposed at the opening of the first air outlet or at a position close to the opening. The specific location of the temperature sensor in the embodiment of the present invention It is not particularly limited, as long as it can obtain the tuyere temperature of the first tuyere.

It should also be noted that the temperature of the tuyere described in the embodiment of the present invention may refer to the temperature of the airflow passing through the tuyere, such as the temperature of the return air or the temperature of the outlet air mentioned above.

Step S200, estimating the tuyere temperature difference between the first tuyere and the second tuyere.

As an example, one of the first air outlet and the second air outlet in the embodiment of the present invention may be the air outlet of the air conditioner, and the other of the first air outlet and the second air outlet may be the return air outlet of the air conditioner, where the temperature difference of the air outlet is It can refer to the absolute value of the temperature difference between the air outlet temperature of the air return outlet of the air conditioner and the air outlet temperature of the air outlet. Specifically, the air outlet temperature difference can be the absolute value of the temperature difference between the return air temperature of the return air outlet and the outlet air temperature of the air outlet, Therefore, it can also be referred to as the return air temperature difference. Here, the return air temperature refers to the temperature of the air flow at the return air outlet of the air conditioner, and the outlet air temperature refers to the temperature of the air flow sent out from the air outlet of the air conditioner. It can be understood that, in some examples, the return air temperature may be substantially the same as the ambient temperature where the air conditioner is located.

FIG. 3 shows a schematic flowchart of the steps of estimating the temperature difference of the tuyere in the method for detecting the temperature of the tuyere of an air conditioner according to an embodiment of the present invention.

In this example, as shown in FIG. 3 , the temperature difference of the air outlet may be related to the characteristic parameters of the air conditioner itself. For example, the air outlet temperature difference between the first air outlet and the second air outlet of the air conditioner may be estimated based on the characteristic parameters of the air conditioner itself. . As an example, the characteristic parameters of the air conditioner itself may include but are not limited to at least one of the following items: the internal unit capacity of the air conditioner, the air volume of the air outlet of the air conditioner, the enthalpy difference when the refrigerant flows through the inlet and outlet of the heat exchanger, and The compressor frequency of the air conditioner.

For example, one of the first tuyere and the second tuyere can be a return tuyere, and the other of the first tuyere and the second tuyere can be an air outlet, and the temperature difference of the tuyere between the first tuyere and the second tuyere is estimated. The steps can include:

Step S210: Determine the air volume of the air outlet of the air conditioner.

In this step, the air volume of the air outlet of the air conditioner may represent the total volume of air sent out by the indoor fan of the air conditioner per unit time, or may be considered as the flow of air passing through the air outlet per unit time. The air volume of the air outlet is related to the air outlet capacity of the indoor fan of the air conditioner. For example, the air volume of the air outlet of the air conditioner can be positively correlated with the air outlet capacity of the indoor fan of the air conditioner, that is, the stronger the air outlet capacity of the indoor fan of the air conditioner, The larger the air volume of the air outlet of the air conditioner, the weaker the air outlet capacity of the indoor fan of the air conditioner, and the smaller the air volume of the air outlet of the air conditioner.

In an example, the air outlet capacity of the indoor fan of the air conditioner can be determined according to the power of the indoor fan of the air conditioner. For example, the larger the power of the indoor fan of the air conditioner is, the stronger the air outlet capacity of the indoor fan of the air conditioner The smaller the power of the indoor fan is, the weaker the air outlet capacity of the indoor fan of the air conditioner is determined.

In an exemplary embodiment, the corresponding relationship between the air volume of the air outlet of the air conditioner and the power of the indoor fan of the air conditioner may be pre-built, and the current power of the indoor fan of the air conditioner may be determined, based on the pre-built air volume of the air outlet of the air conditioner and the power of the indoor fan of the air conditioner. The corresponding relationship between the powers of the indoor fans of the air conditioner is to search for the air volume corresponding to the current power of the indoor fan of the air conditioner, and the found air volume is determined as the air volume of the air outlet of the air conditioner.

In another exemplary embodiment, the air volume of the air outlet of the air conditioner can be obtained by invoking a preset parameter table of the air conditioner, and querying based on the preset parameter table. The preset parameter table may store basic performance parameters of the air conditioner. For example, the preset parameter table may include but not limited to parameters such as air volume, rated power, cooling capacity, heating capacity, and energy efficiency ratio.

For example, an air conditioner may be provided with a memory, in which a preset parameter table of the air conditioner is stored. In this case, the air volume of the air outlet of the air conditioner can be obtained by querying the preset parameter table of the air conditioner stored in the memory. In an example, the corresponding air volume of the air outlet can be queried according to the fan speed of the indoor unit and the static pressure. For external pressure, the air volume of the air outlet can be queried from the preset parameter table when the wind speed and static pressure of the internal unit are known.

It should be understood that the above-mentioned ways to obtain the air volume of the air outlet of the air conditioner by pre-constructing the corresponding relationship between the air volume of the air outlet of the air conditioner and the power of the indoor fan of the air conditioner or directly calling the pre-stored preset parameter table. It is only an example, the present invention is not limited to this, and the air volume of the air outlet of the air conditioner can also be determined in other ways. For example, the air volume of the air outlet of the air conditioner can be obtained by measuring. As an example, the air volume can be set at the air outlet of the air conditioner. The measurement sensor obtains the air volume of the air outlet of the air conditioner from the set air volume measurement sensor to obtain more accurate air volume data. In one example, the air volume measurement sensor may include, but is not limited to, an anemometer (eg, a thermal anemometer) or an air volume meter.

Step S220: Determine the internal unit capability of the air conditioner.

In this step, the internal unit capacity of the air conditioner can represent the heat exchange generated by the air conditioner per unit time, which can be equal to the sum of the heat absorbed by the air conditioner from the environment and the heat converted by the compressor in a unit time. Here, when the air conditioner is a split type air conditioner, the internal unit capacity may refer to the heat exchange capacity of the indoor unit of the air conditioner, and when the air conditioner is an integrated air conditioner or a window air conditioner, the internal unit capacity may refer to the heat exchange capacity of the air conditioner itself ability.

In one example, the internal unit capacity of the air conditioner may include cooling capacity and/or heating capacity. The cooling capacity and heating capacity of the air conditioner can be expressed by the following formulas (1) and (2), respectively:

qc=Δi×G-Wi (1)

qh=Δi×G+Wi (2)

Among them, qc represents the cooling capacity of the air conditioner, the unit of qc can be, for example, watts (W), qh represents the heating capacity of the air conditioner, the unit of qh can be, for example, watts (W), and Δi represents that the refrigerant of the air conditioner flows through the heat exchanger The difference between the specific enthalpy at the inlet and the outlet, the unit of Δi can be, for example, joules per kilogram (J/kg). In the case of a split-type air conditioner, Δi can indicate that the refrigerant of the air conditioner flows through the indoor unit and the outdoor unit. The difference between the specific enthalpy between the inlet and the outlet, G represents the refrigerant circulation amount, the unit of G can be, for example, kilograms per second (kg/s), Wi represents the power of the indoor fan of the air conditioner, and the unit of Wi can be, for example, Watt (W), here, the power of the indoor fan can be determined by querying the preset parameter table described above, or it can be obtained by a power measurement sensor. As an example, the unit of the internal unit capacity of the air conditioner may be watts (W).

In addition to the above-mentioned methods for determining the internal unit capacity of the air conditioner through formula (1) and formula (2), the embodiment of the present invention may also determine the internal unit capacity of the air conditioner through other methods. For example, a compressor curve may be used. The method (also known as the CC method) is used to determine the internal unit capacity of the air conditioner.

For example, the step of determining the internal unit capacity of the air conditioner may include: determining the evaporating temperature and condensing temperature of the refrigerant of the air conditioner and the compressor frequency of the air conditioner; and determining the internal unit capacity of the air conditioner according to the evaporating temperature, condensing temperature and compressor frequency.

Specifically, the internal unit capacity q of the air conditioner can be determined by establishing a function of the evaporation temperature Te, the condensation temperature Tc and the compressor frequency Hz, which can be expressed in the form of q=f(Te, Tc, Hz).

As an example, when the compressor frequency Hz of the air conditioner is determined, the internal unit capacity q of the air conditioner can be expressed as a function of the evaporating temperature Te and the condensing temperature Tc, as shown in the following formula (3):

q=A1+A2×Te+A3×Tc+A4×Te ² +A5×Te×Tc+A6×Tc ² (3)

Equation (3) represents the quadratic polynomial fitting of the internal unit capacity q of the air conditioner, in which the coefficients A1, A2, A3, A4, A5 and A6 can be determined according to the compressor curve fitting. Under a certain compressor frequency, according to different evaporating temperature, condensing temperature and corresponding internal machine capacity, the internal machine capacity formula is fitted, so as to determine the coefficients A1 to A6 mentioned above.

Further, the internal unit capacity q of the air conditioner can also be expressed by the following formula (4)

q=A1+A2×Te+A3×Tc+A4×Te ² +A5×Te×Tc+A6×Tc ² +A7×Te ³ +A8×Te ² ×Tc+A9×Te×Tc ² +A10×Tc ³ (4)

Similar to the above formula (3), in the formula (4), the coefficients A1, A2, A3, A4, A5, A6, A7, A8, A9 and A10 can also be coefficients determined according to the compressor curve fitting . Equation (4) represents the cubic polynomial fitting of the internal unit capacity q of the air conditioner, and its precision can be higher and the calculation result more accurate.

In the heating process of the air conditioner, the heating capacity can be directly determined by the above formulas (3) and (4).

In addition, the cooling process of the air conditioner can also include a dehumidification process. Therefore, considering dehumidification, the cooling capacity can be further expressed as q = q*ξ, where _the coefficient ξ can be determined by the ambient temperature of the environment where the air conditioner is located. (eg indoor temperature), ambient humidity, refrigerant evaporation temperature, superheat and the KA value of the evaporator (ie, the product of the heat transfer coefficient and the heat transfer area of the evaporator). Here, the degree of superheat may refer to the difference between the superheat temperature and the saturation temperature of the refrigerant under the same evaporation pressure in the refrigeration cycle. The coefficient ξ can be determined according to a calculation method known in the art, and will not be repeated here.

In addition, the above-mentioned process of determining the internal unit capacity of the air conditioner may be performed in the air conditioner, in addition to that, may also be performed in the outdoor unit of the air conditioner, or may also be performed by an independent controller, so as to realize the above-mentioned process according to the entire air conditioning system. parameters to calculate the internal unit capacity of the air conditioner. At this time, the outdoor unit of the air conditioner or an independent controller can send the calculated internal unit capacity of the air conditioner to the air conditioner, so as to use the internal unit capacity to further estimate the first air outlet and the second air outlet The temperature difference between the tuyere.

Step S230 , based on the air volume of the air outlet of the air conditioner and the capacity of the internal unit of the air conditioner, estimate the air outlet temperature difference between the first air outlet and the second air outlet.

FIG. 4 shows an example of estimating the air outlet temperature difference between the first air outlet and the second air outlet based on the air volume of the air outlet of the air conditioner and the internal unit capacity of the air conditioner according to an embodiment of the present invention. As shown in FIG. 4 , in After the air volume of the air outlet of the air conditioner and the internal unit capacity of the air conditioner are determined, the air outlet temperature difference between the first air outlet and the second air outlet can be estimated based on the determined air volume and the internal unit capacity.

Specifically, the tuyere temperature difference between the first tuyere and the second tuyere may be determined based on the characteristic parameters of the air conditioner itself and the environmental characteristics of the environment where the air conditioner is located. As an example, the environmental characteristics of the environment where the air conditioner is located may include, but are not limited to, the air specific heat capacity and air density of the environment where the air conditioner is located.

For example, based on the air volume of the air outlet of the air conditioner and the internal unit capacity of the air conditioner, the step of estimating the air outlet temperature difference between the first air outlet and the second air outlet may include:

Step S231: Determine the air specific heat capacity and air density of the environment where the air conditioner is located.

For example, the air specific heat capacity and air density of the environment where the air conditioner is located can be determined according to the actual installation environment of the air conditioner. Specifically, the air specific heat capacity and air density are generally related to the ambient temperature, ambient air pressure and air humidity.

In an example, when the ambient air pressure and air humidity are within the preset data level range or do not change significantly from the preset data values, the effects of the ambient air pressure and air humidity on the air specific heat capacity and air density are negligible, and can be Only the effect of ambient temperature on air specific heat capacity and air density is considered. Here, the preset data values may include air pressure data values and humidity data values that are preset for the ambient air pressure and air humidity, respectively. In this case, the ambient air pressure and air humidity do not change significantly relative to the preset data values, which may refer to the difference between the ambient air pressure and the air humidity. The difference between the preset air pressure data values is less than the first set value, and the difference between the air humidity and the preset humidity data value is less than the second set value. As an example, the first set value can be set based on experience. The value of the fixed value and the second set value.

The ambient temperature can be obtained through the room temperature sensor set by the air conditioner. For example, the temperature detected by the room temperature sensor provided in the air conditioner is determined as the ambient temperature of the environment where the air conditioner is located.

In addition, for the above-mentioned situation where the first air outlet is a return air outlet and the second air outlet is an air outlet, a temperature sensor can be provided at the air return outlet. The return air temperature is determined as the ambient temperature. In this case, the air specific heat capacity is calculated using the return air temperature of the return air outlet of the air conditioner. For example, a comparison table between air specific heat capacity, air density and return air temperature can be pre-stored, and the air specific heat capacity and air density can be obtained by querying the above comparison table according to the detected return air temperature of the air return port of the air conditioner.

It should be understood that the above-mentioned methods for determining the air specific heat capacity and air density of the environment where the air conditioner is located based on the ambient temperature are only examples, and the present invention is not limited to this, and other methods can also be used to determine the air specific heat capacity of the environment where the air conditioner is located. and air density, for example, can be obtained by direct measurement with measuring instruments or experimentally. For example, the air specific heat capacity and air density of the environment are detected before the air conditioner is used, and the detected air specific heat capacity and air density are stored in the air conditioner (for example, a processor), so as to be used in the process of estimating the temperature difference of the air outlet. transfer.

The embodiments of the present invention do not have any particular limitations on the way of determining the air specific heat capacity and air density, and they can be obtained in any way. air density, so that the tuyere temperature difference can be calculated more accurately.

Step S232: Calculate the product of air specific heat capacity, air density and air volume.

Step S233: Calculate the ratio of the capacity of the internal machine to the product, and estimate the temperature difference of the tuyere according to the ratio.

After determining the air specific heat capacity and air density of the environment where the air conditioner is located, in steps S232 and S233, the product of the air specific heat capacity, air density and air volume can be calculated, and the ratio of the internal unit capacity of the air conditioner to the above product can be calculated. The ratio estimates the temperature difference of the tuyere. For example, the calculated ratio may be determined as the tuyere temperature difference between the first tuyere and the second tuyere. It should be understood that the air volume and the capacity of the internal machine can be determined in the same manner as described above, and thus will not be repeated here.

Specifically, the tuyere temperature difference between the first tuyere and the second tuyere of the air conditioner may be equal to the temperature difference of the air flow before and after the heat exchange of the heat exchanger of the air conditioner. Therefore, the tuyere temperature difference between the first tuyere and the second tuyere can be calculated according to the heat exchange of the heat exchanger of the air conditioner.

As an example, according to the conservation of energy, the heat exchange process of the airflow through the heat exchanger can be expressed by the following formula (5):

Q=c×m×△T (5)

Among them, Q represents the heat exchange of the heat exchanger, and the unit of Q can be, for example, coke (J), such as cooling capacity or heating capacity, and c represents the specific heat capacity of the air in the environment where the air conditioner is located, and the unit of c can be, for example, joule per Kilogram Kelvin (J/(kg·K)), m represents the mass of air, the unit of m can be, for example, kilograms, ΔT represents the temperature difference before and after airflow heat exchange, and the unit of ΔT can be, for example, Kelvin (K).

Here, the mass m of the air can be represented by the product of the air density ρ and the volume V, therefore, the above formula (5) can be further expressed as the following formula (6):

Q=c×ρ×V×△T (6)

The unit of air density ρ may be, for example, kilograms per cubic meter (kg/m ³ ), and the unit of volume V may be, for example, cubic meters (m ³ ).

For the above equation (6), the terms on both sides of the equal sign can be divided by the time t that the air flow passes through the heat exchanger, so that the following equation (7) can be obtained:

Q/t=(c×ρ×V×ΔT)/t (7)

For the left side of the equal sign of the above formula (7), the ratio of heat Q to time t (Q/t) can be expressed as the internal unit capacity q of the air conditioner (for example, its unit can be watts (W)). Here, the unit of time t may be, for example, seconds (s).

For the right side of the equal sign of the above formula (7), the term (c×ρ×V×ΔT)/t can be expressed as c×ρ×(V/t)×ΔT, where the volume V of air and the time t The ratio (V/t) of V/t can be expressed as the air volume Flow of the air outlet of the air conditioner, and the unit of the air volume Flow can be, for example, cubic meters per second (m ³ /s).

Furthermore, the above formula (7) can be expressed as the following formula (8):

q=c×ρ×Flow×△T (8)

Based on the above formula (8), the temperature difference before and after the airflow heat exchange can be expressed as:

△T=q/(c×ρ×Flow) (9)

It should be noted that although the unit of each physical quantity is given by way of example in the description of the embodiment of the present invention, the unit of the physical quantity is not limited to the specific unit given in the embodiment of the present invention, but can be calculated according to the actual calculation process. For conversion, for example, the unit of the air volume Flow may be cubic meters per second (m ³ /h), and the unit of ΔT may be Kelvin (K) or degrees Celsius (°C).

Returning to FIG. 2 , in step S300 , the tuyere temperature of the second tuyere is determined according to the tuyere temperature of the first tuyere and the tuyere temperature difference.

In this step, the tuyere temperature of the second tuyere may be determined according to the tuyere temperature of the first tuyere obtained in step S100 and the tuyere temperature difference between the first tuyere and the second tuyere estimated in step S200.

Specifically, in the existing air conditioner, a temperature sensor is only provided at the return air outlet to detect the return air temperature. In this case, in order to detect the outlet air temperature of the air outlet, a temperature sensor may need to be arranged at the air outlet. However, arranging such a physical temperature sensor needs to modify the structure of the air outlet of the air conditioner accordingly, and increase the process of mechanical assembly and circuit connection, which is not conducive to simplifying the overall structure and production process of the air conditioner.

In view of this, for the situation where the first air outlet is the return air outlet and the second air outlet is the air outlet in the above-mentioned embodiments of the present invention, the return air temperature of the return air outlet and the return air outlet can be determined according to the method for detecting the temperature of the air conditioner air outlet according to the embodiment of the present invention. The temperature difference between the air outlet and the air outlet to determine the air outlet temperature of the air outlet is equivalent to providing a virtual air outlet temperature sensor for the air outlet. At the same time, the number of air-conditioning sensors can be reduced, which helps to simplify the processes of structure, mechanical assembly and circuit connection of the air-conditioning outlet.

In the heating process of the air conditioner, according to the return air temperature T1 of _{the return air} outlet and the temperature difference ΔT of the air outlet, the outlet air temperature T2 _{of the air} outlet can be expressed by the following formula (10):

T2 _{outlet air} = T1 _{return air} + ΔT (10)

During the cooling process of the air conditioner, according to the return air temperature T1 of _{the return air} outlet and the temperature difference ΔT of the air outlet, the outlet air temperature T2 _{of the air} outlet can be expressed by the following formula (11):

T2 _{outlet air} = T1 _{return air} - ΔT (11)

In the above-mentioned embodiment of the present invention, the first air outlet is the air outlet and the second air outlet is the return air outlet. At this time, the temperature sensor installed at the air outlet of the air conditioner is used to detect the air outlet temperature of the air outlet. In this case , the return air temperature of the return air outlet can be determined based on the air outlet temperature of the air outlet and the air outlet temperature difference between the return air outlet and the air outlet according to the method for detecting the temperature of the air-conditioning air outlet of the embodiment of the present invention, which is equivalent to providing a return air outlet with a Virtual return air temperature sensor. Based on the above detection method, the number of air-conditioning sensors to be installed is reduced, which helps to simplify the processes of the structure, mechanical assembly and circuit connection of the air-conditioning outlet.

In the heating process of the air conditioner, according to the temperature difference ΔT between the outlet air temperature T1 _{of the air} outlet and the air outlet, the return air temperature T2 of the _return air outlet can be expressed by the following formula (12):

T2 _{return air} = T1 _{outlet air} - ΔT (12)

In the cooling process of the air conditioner, according to the temperature difference ΔT between the outlet air temperature T1 _{of the air} outlet and the air outlet, the return air temperature T2 of the _return air outlet can be expressed by the following formula (13):

T2 _{return air} = T1 _{outlet air} + ΔT (13)

It should be understood that, in addition to the above-mentioned method of disposing a temperature sensor at the first air outlet of the air conditioner, a temperature sensor may also be installed at the second air outlet of the air conditioner, that is, at both the return air outlet and the air outlet of the air conditioner. A temperature sensor is provided to detect both the return air temperature of the return air outlet and the outlet air temperature of the air outlet. The sensor performs fault judgment, or corrects the temperature value detected by the temperature sensor.

Specifically, for the situation where the first air outlet is the air outlet and the second air outlet is the return air outlet in the above-mentioned embodiment of the present invention, the return air temperature of the return air outlet can be determined by the method for detecting the temperature of the air-conditioning air outlet according to the embodiment of the present invention (hereinafter referred to as the “return air outlet”). is the return air temperature estimated value), and compares the determined return air temperature of the return air outlet with the return air temperature detected by the temperature sensor set at the return air outlet (hereinafter referred to as the return air temperature detection value), which can be A predetermined difference threshold is set for the comparison result of the two. When the comparison result (for example, it can refer to the absolute value of the difference between the estimated value of the return air temperature and the detected value of the return air temperature) is greater than the predetermined difference threshold, it can be considered that according to the embodiment of the present invention The difference between the estimated value of the return air temperature obtained by the method of detecting the air outlet temperature of the air conditioner and the detected value of the return air temperature sensed by the physical temperature sensor is large. At this time, the physical temperature sensor may be faulty. The temperature sensor set at the air return vent may be faulty, and the faulty temperature sensor can be repaired or replaced. In this case, the estimated value of the return air temperature obtained by the method for detecting the temperature of the air-conditioning tuyere according to the embodiment of the present invention may be determined as the return air temperature of the return air outlet, so as to be used for subsequent determination of the return air temperature based on the return air temperature of the return air outlet. Air conditioning control.

When the comparison result is not greater than (ie, less than or equal to) the predetermined difference threshold, it can be considered that the estimated value of the return air temperature obtained by the method for detecting the temperature of the air-conditioning tuyere according to the embodiment of the present invention is the same as the return air temperature sensed by the physical temperature sensor. The difference between the temperature detection values is small. At this time, the estimated value of the return air temperature obtained by the method for detecting the air outlet temperature of the air conditioner according to the embodiment of the present invention or the detected value of the return air temperature sensed by the physical temperature sensor can be determined. is the return air temperature of the return air outlet, which is used in the subsequent air conditioning control based on the return air temperature of the return air outlet.

Similarly, for the situation where the first air outlet is the return air outlet and the second air outlet is the air outlet in the above-mentioned embodiments of the present invention, the air outlet temperature of the air outlet (hereinafter referred to as the air outlet temperature detection method of the embodiment of the present invention can be used to determine the air outlet The estimated value of the outlet air temperature), and the determined outlet air temperature of the outlet is compared with the outlet air temperature detected by the temperature sensor set at the air outlet (hereinafter referred to as the outlet air temperature detection value), which can be two A predetermined difference threshold is set for the comparison result of the user, and when the comparison result (for example, the absolute value of the difference between the estimated value of the air temperature and the detected value of the outlet air temperature) is greater than the predetermined difference threshold, it can be considered that the air conditioner according to the embodiment of the present invention There is a large difference between the estimated value of the outlet air temperature obtained by the air outlet temperature detection method and the detected value of the outlet air temperature sensed by the physical temperature sensor. At this time, the physical temperature sensor may be faulty. The set temperature sensor may be faulty, and the faulty temperature sensor can be repaired or replaced. In this case, the estimated value of the air outlet temperature obtained by the method for detecting the air outlet temperature of the air conditioner according to the embodiment of the present invention may be determined as the outlet air temperature of the air outlet, so as to be used for subsequent determination based on the air outlet temperature of the air outlet. Air conditioning control.

When the comparison result is not greater than the predetermined difference threshold, it can be considered as the difference between the estimated value of the outlet air temperature obtained by the method for detecting the air outlet temperature of the air conditioner according to the embodiment of the present invention and the detected value of the outlet air temperature sensed by the physical temperature sensor At this time, the estimated value of the outlet air temperature obtained by the method for detecting the air outlet temperature of the air conditioner according to the embodiment of the present invention or the detected value of the outlet air temperature sensed by the physical temperature sensor can be determined as the outlet air temperature of the air outlet , which is used in the subsequent air conditioning control based on the air temperature of the air outlet.

In this way, the working state of the physical temperature sensors disposed at the air outlet and the air return outlet can be monitored in real time through the above process, and a fault can be reported in time when a fault occurs.

In addition to the method of estimating the tuyere temperature difference between the first tuyere and the second tuyere described above with reference to FIG. 4 , as another example, the difference between the tuyere temperature difference and the capacity and air volume of the indoor unit can also be determined by a pre-test method. Based on the corresponding relationship, find the temperature difference of the tuyere corresponding to the capacity and air volume of the indoor unit. For example, a comparison table between the air outlet temperature difference and the capacity and air volume of the indoor unit can be pre-stored, and when the indoor unit capacity and air volume are determined, the air outlet temperature difference can be obtained by querying the comparison table.

In addition, as another example, the fitting function between the air outlet temperature difference, the air volume of the air outlet, and the capacity of the indoor unit can also be pre-determined by curve fitting. For example, the air outlet temperature difference ΔT can be expressed as ΔT=k×( q/Flow), that is, the coefficient k can be obtained by fitting, so that the temperature difference of the air outlet can be determined according to the air volume of the air outlet and the capacity of the indoor unit.

Based on the same inventive concept, an embodiment of the present invention also provides a device for detecting the temperature of the air-conditioning tuyere corresponding to the method for detecting the temperature of the air-conditioning tuyere shown in FIG. 2 .

FIG. 5 shows a schematic block diagram of an apparatus for detecting the temperature of an air-conditioning tuyere according to an embodiment of the present invention.

The air conditioner of the embodiment of the present invention includes a first air outlet and a second air outlet. In one example, the air conditioner of the embodiment of the present invention may be a split type air conditioner, and the first air outlet and the second air outlet may be provided in the indoor unit of the air conditioner. In another example, the air conditioner of the embodiment of the present invention may be an integrated air conditioner or Window type air conditioner, in this case, the first air outlet and the second air outlet may be provided in a part of the air conditioner that faces indoors or is located indoors.

As shown in FIG. 5 , the device for detecting the temperature of the air-conditioning tuyere includes an acquisition unit 100 , an estimation unit 200 and a determination unit 300 .

The obtaining unit 100 is configured to obtain the tuyere temperature of the first tuyere. For example, the acquisition unit 100 may receive the tuyere temperature sensed from a temperature sensor disposed at the first tuyere.

The estimating unit 200 is used for estimating the tuyere temperature difference between the first tuyere and the second tuyere.

As an example, one of the first air outlet and the second air outlet is a return air outlet, and the other of the first air outlet and the second air outlet is an air outlet, and the estimation unit 200 can estimate the air outlet temperature difference in the following manner: Determine the air volume of the air outlet; determine the internal unit capacity of the air conditioner; estimate the temperature difference of the air outlet based on the air volume and the capacity of the internal unit.

After the estimating unit 200 determines the air volume of the air outlet of the air conditioner and the internal unit capacity of the air conditioner, the estimating unit 200 can estimate the air outlet temperature difference in the following ways: determine the air specific heat capacity and air density of the environment where the air conditioner is located; calculate the air specific heat capacity, The product of air density and air volume; calculate the ratio of the capacity of the indoor unit to the product, and estimate the temperature difference of the air outlet according to the ratio.

The determining unit 300 is configured to determine the tuyere temperature of the second tuyere according to the tuyere temperature of the first tuyere and the tuyere temperature difference. Specifically, the determining unit 300 may calculate the tuyere temperature of the second tuyere according to the tuyere temperature obtained by the obtaining unit 100 and the tuyere temperature difference estimated by the estimation unit 200 .

It should be noted that, the explanations of the foregoing embodiments of the method for detecting the temperature of the air-conditioning tuyere are also applicable to the device for detecting the temperature of the air-conditioning tuyere of this embodiment, and repeated descriptions will not be repeated.

In order to realize the above embodiments, the present invention also provides an indoor unit of an air conditioner.

The air conditioner indoor unit according to the embodiment of the present invention includes a memory and a processor.

The memory may store a computer program, and the processor may execute the computer program stored in the memory, so as to implement the method for detecting the temperature of an air conditioner tuyere described in the foregoing embodiments.

As an example, in the indoor unit of the air conditioner according to the embodiment of the present invention, the first air outlet is a return air outlet, the second air outlet is an air outlet, and a temperature sensor is provided at only the air return outlet of the return air outlet and the air outlet, and the temperature sensor is used to detect The return air temperature of the return air outlet. In this case, the temperature sensor may not be installed at the air outlet, but the air outlet temperature of the air outlet may be determined according to the method for detecting the temperature of the air-conditioning air outlet as described in the foregoing embodiments, thereby reducing the setting of physical temperature sensors and avoiding the need for existing air conditioners. Mechanical or electrical adjustment of the structure of the indoor unit of an air conditioner.

In addition, the air conditioner indoor unit of the embodiment of the present invention can be applied to a wall-mounted, cabinet type, ceiling type or duct type one-to-one air conditioner indoor unit or a multi-connected air conditioner indoor unit.

It should be noted that, the explanations of the foregoing embodiment of the method for detecting the air outlet temperature of the air conditioner are also applicable to the air conditioner indoor unit of this embodiment, and are not repeated here.

In order to realize the above embodiments, the present invention also provides an air conditioner, the air conditioner includes: the air conditioner indoor unit as described in the foregoing embodiments.

In order to implement the above embodiments, the present invention also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the method for detecting air-conditioning tuyere temperature as described in the foregoing method embodiments.

According to the method for detecting the air outlet temperature of the air conditioner, the air conditioner indoor unit and the air conditioner of the present invention, the tuyere temperature of another tuyere can be determined according to the tuyere temperature of one tuyere and the estimated tuyere temperature difference, so that the temperature of the tuyere of another tuyere can be determined simultaneously without adding a physical temperature sensor. Provides the air outlet temperature of the two air outlets of the air conditioner.

In addition, according to the method for detecting the temperature of the air outlet of the air conditioner, the indoor unit of the air conditioner, and the air conditioner, by constructing a model of the air volume of the air outlet of the air conditioner, the capacity of the inner unit of the air conditioner and the temperature difference of the air outlet, the air outlet can be estimated based on the air volume and the capacity of the indoor unit. temperature difference to quickly and accurately calculate the tuyere temperature.

In addition, according to the method for detecting the temperature of the air outlet of the air conditioner, the indoor unit of the air conditioner and the air conditioner, the temperature of the outlet air can be determined according to the temperature of the return air sensed by the temperature sensor arranged at the air return outlet, so that the user's expectation can be more accurately provided. The outlet air temperature can improve the user's comfortable experience.

In addition, according to the method for detecting the air outlet temperature of the air conditioner, the indoor unit of the air conditioner and the air conditioner, the failure of the set temperature sensor can be monitored, and the faulty temperature sensor can be alarmed, repaired or replaced in time.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

Any description of a process or method in the flow diagrams or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing custom logical functions or steps of the process , and the scope of the preferred embodiments of the invention includes alternative implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending upon the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present invention belong.

Logic and/or steps represented in flowchart illustrations or otherwise described herein, for example, may be considered an ordered listing of executable instructions for implementing the logical functions, may be embodied in any computer-readable medium, For use with, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from and execute instructions from an instruction execution system, apparatus, or apparatus) or equipment. For the purposes of this specification, a "computer-readable storage medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or apparatus . More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), Read Only Memory (ROM), Erasable Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as the paper or other medium may be optically scanned, for example, followed by editing, interpretation, or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented by any one of the following techniques known in the art, or a combination thereof: discrete with logic gates for implementing logic functions on data signals Logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those skilled in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the program can be stored in a computer-readable storage medium. When executed, one or a combination of the steps of the method embodiment is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically alone, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

The above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disk, or the like. Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (12)

1. The method for detecting the air conditioner air outlet temperature is characterized in that the air conditioner comprises a first air outlet and a second air outlet, and the method for detecting the air conditioner air outlet temperature comprises the following steps:

acquiring the tuyere temperature of the first tuyere;

estimating the tuyere temperature difference between the first tuyere and the second tuyere;

and determining the tuyere temperature of the second tuyere according to the tuyere temperature of the first tuyere and the tuyere temperature difference.

2. The method for detecting the temperature of an air conditioner outlet according to claim 1, wherein one of the first outlet and the second outlet is a return outlet, and the other one of the first outlet and the second outlet is an outlet, wherein estimating the outlet temperature difference between the first outlet and the second outlet comprises:

determining the air volume of an air outlet of the air conditioner;

determining the capacity of an internal machine of the air conditioner;

and estimating the temperature difference of the air port based on the air volume and the capacity of the internal machine.

3. The method for detecting the air conditioner air outlet temperature according to claim 2, wherein estimating the air outlet temperature difference based on the air volume and the indoor unit capacity comprises:

determining the specific heat capacity and the air density of the air conditioner in the environment;

calculating the product of the air specific heat capacity, the air density and the air volume;

and calculating the ratio of the capacity of the internal machine to the product, and estimating the temperature difference of the tuyere according to the ratio.

4. The method for detecting the air conditioner outlet temperature according to claim 2 or 3, wherein determining the capacity of the air conditioner comprises:

determining the evaporating temperature and the condensing temperature of the air-conditioning refrigerant and the frequency of a compressor of the air conditioner;

and determining the capacity of an internal machine of the air conditioner according to the evaporation temperature, the condensation temperature and the frequency of the compressor.

5. The method for detecting an air conditioner outlet temperature according to any one of claims 1 to 3, wherein the outlet temperature of the first outlet is obtained by at least one of:

acquiring the air port temperature of the first air port from a temperature sensor arranged at the first air port;

acquiring the air inlet temperature of the first air inlet from a room temperature sensor arranged in the air conditioner;

and acquiring the air outlet temperature of the first air outlet from the electronic equipment in a communication connection state with the air conditioner.

6. The utility model provides a detection device of air conditioner wind gap temperature which characterized in that, the air conditioner includes first wind gap and second wind gap, detection device of air conditioner wind gap temperature includes:

the acquisition unit is used for acquiring the tuyere temperature of the first tuyere;

the pre-estimating unit is used for estimating the temperature difference of the air port between the first air port and the second air port;

and the determining unit is used for determining the tuyere temperature of the second tuyere according to the tuyere temperature of the first tuyere and the tuyere temperature difference.

7. The apparatus for detecting the temperature of an air-conditioning outlet according to claim 6, wherein one of the first and second outlets is a return air outlet, and the other of the first and second outlets is an air outlet, and the estimating unit estimates the outlet temperature difference by:

determining the air volume of an air outlet of the air conditioner;

determining the capacity of an internal machine of the air conditioner;

and estimating the temperature difference of the air port based on the air volume and the capacity of the internal machine.

8. The apparatus for detecting the temperature of an air-conditioner outlet according to claim 7, wherein the estimating unit estimates the outlet temperature difference based on the air volume and the capacity of the internal machine by:

determining the air specific heat capacity and the air density of the environment where the air conditioner is located;

calculating the product of the air specific heat capacity, the air density and the air volume;

and calculating the ratio of the capacity of the internal machine to the product, and estimating the temperature difference of the tuyere according to the ratio.

9. An air-conditioning indoor unit, characterized in that the air-conditioning indoor unit comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to realize the method for detecting the air-conditioning outlet temperature according to any one of claims 1 to 5.

10. The indoor unit of an air conditioner according to claim 9, wherein the first air inlet is a return air inlet, the second air inlet is an air outlet, and only the return air inlet of the return air inlet and the air outlet is provided with a temperature sensor for detecting a return air temperature of the return air inlet.

11. An air conditioner, characterized in that the air conditioner comprises: the indoor unit of an air conditioner according to claim 9 or 10.

12. A computer-readable storage medium on which a computer program is stored, the computer program realizing the method for detecting the air-conditioner outlet temperature according to any one of claims 1 to 5 when being executed by a processor.

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