Control method and device for latent heat type air conditioner, and latent heat type air conditioner

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method of a latent heat type air conditioner. The latent heat type air conditioner comprises a latent heat treatment module and a fan for providing air volume for the latent heat treatment module, the latent heat treatment module comprises an indoor air circulation air duct, and the control method of the latent heat type air conditioner comprises the following steps: obtaining a current indoor relative humidity; determining a first current rotating speed of the fan corresponding to the current indoor relative humidity according to a corresponding relationship between the indoor relative humidity and the rotating speed; and controlling the fan according to the first current rotating speed to supply air for the indoor air circulation air duct. The control method of the latent heat type air conditioner can further improve the energy efficiency ratio of the air conditioner. The application further discloses a control device of the latent heat type air conditioner and the latent heat type air conditioner.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a control method, device, and latent heat type air conditioner. Background Technology

[0002] Currently, when indoor temperatures are too high, air conditioning can be used to lower them and improve user comfort. However, if the relative humidity of the indoor air is too high during the temperature reduction process, it will increase the energy consumption of the air conditioner.

[0003] To address this, some existing technologies have been optimized by installing two heat exchangers indoors. During the cooling process, one evaporator absorbs moisture from the indoor air to remove latent heat, while the other evaporator lowers the indoor air temperature to remove sensible heat. This simultaneous treatment of both latent and sensible heat improves the air conditioner's energy efficiency ratio.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The improvement in the energy efficiency ratio of air conditioners is relatively small. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a control method, apparatus, and latent heat type air conditioner to address the technical problem that the existing technology does not significantly improve the energy efficiency ratio of air conditioners.

[0008] In some embodiments, a latent heat type air conditioner includes a latent heat treatment module and a fan that provides airflow to the latent heat treatment module. The latent heat treatment module includes an indoor air circulation duct. The control method of the latent heat type air conditioner includes: obtaining the current indoor relative humidity; determining a first current rotational speed of the fan corresponding to the current indoor relative humidity based on the correspondence between indoor relative humidity and rotational speed; and controlling the fan according to the first current rotational speed to supply air to the indoor air circulation duct.

[0009] Optionally, the relationship between indoor relative humidity and rotation speed includes: when the indoor relative humidity is less than a first set relative humidity, determining the rotation speed as the minimum rotation speed of the fan; when the indoor relative humidity is greater than or equal to the first set relative humidity and less than or equal to a second set relative humidity, determining that the rotation speed is positively correlated with the indoor relative humidity; and when the indoor relative humidity is greater than or equal to the second set relative humidity, determining the rotation speed as the maximum rotation speed of the fan.

[0010] Optionally, determining the first current rotational speed of the fan corresponding to the current indoor relative humidity based on the correspondence between indoor relative humidity and rotational speed includes: obtaining the current temperature difference between the current indoor temperature and the set indoor temperature; determining the first current rotational speed corresponding to the current indoor relative humidity and the current temperature difference based on the temperature difference, the correspondence between indoor relative humidity and rotational speed, wherein the rotational speed is positively correlated with the temperature difference.

[0011] Optionally, determining the first current rotational speed of the fan corresponding to the current indoor relative humidity based on the correspondence between indoor relative humidity and rotational speed further includes: obtaining the expected relative humidity corresponding to the current indoor relative humidity; the expected relative humidity refers to the relative humidity that can be achieved after eliminating the current temperature difference, provided that the absolute humidity in the room remains unchanged; and determining that the rate of change of the first current rotational speed is positively correlated with the expected relative humidity.

[0012] Optionally, obtaining the expected relative humidity corresponding to the current indoor relative humidity includes: obtaining the average increasing relative humidity corresponding to the current temperature difference; and determining the sum of the average increasing relative humidity and the current indoor relative humidity as the expected relative humidity.

[0013] Optionally, obtaining the expected relative humidity corresponding to the current indoor relative humidity includes: determining the current absolute humidity corresponding to the current relative humidity and the current indoor temperature based on the correspondence between relative humidity, temperature and absolute humidity; and determining the expected relative humidity corresponding to the current absolute humidity and the set indoor temperature based on the correspondence between relative humidity, temperature and absolute humidity.

[0014] Optionally, the latent heat treatment module further includes an outdoor air circulation duct, and the control method of the latent heat air conditioner further includes: obtaining the current outdoor relative humidity when the current relative humidity treatment process of the latent heat treatment module is a regeneration process; determining the second current speed of the fan corresponding to the current outdoor relative humidity according to the correspondence between outdoor relative humidity and speed; and controlling the fan according to the second current speed to supply air to the outdoor air circulation duct.

[0015] Optionally, the relationship between outdoor relative humidity and rotation speed includes: when the outdoor relative humidity is greater than a third set relative humidity, determining the rotation speed as the minimum rotation speed of the fan; when the outdoor relative humidity is less than or equal to the third set relative humidity and greater than or equal to the fourth set relative humidity, determining that the rotation speed is inversely correlated with the outdoor relative humidity; and when the outdoor relative humidity is less than the fourth set relative humidity, determining the rotation speed as the maximum rotation speed of the fan.

[0016] In some embodiments, the latent heat type air conditioner includes a latent heat treatment module and a fan that provides airflow to the latent heat treatment module. The latent heat treatment module includes an indoor air circulation duct. The control device of the latent heat type air conditioner includes a first obtaining module, a first determining module, and a first controlling module. The first obtaining module is configured to obtain the current indoor relative humidity. The first determining module is configured to determine a first current rotational speed of the fan corresponding to the current indoor relative humidity based on the correspondence between indoor relative humidity and rotational speed. The first controlling module is configured to control the fan according to the first current rotational speed to supply air to the indoor air circulation duct.

[0017] In some embodiments, the control device for a latent heat type air conditioner includes a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for a latent heat type air conditioner provided in the foregoing embodiments when executing the program instructions.

[0018] In some embodiments, a latent heat type air conditioner includes:

[0019] The latent heat treatment module includes an indoor air circulation duct;

[0020] The fan provides airflow to the latent heat module;

[0021] The control device for latent heat type air conditioners provided in the foregoing embodiments.

[0022] The control method, apparatus, and latent heat air conditioner provided in this disclosure can achieve the following technical effects:

[0023] During the process of the latent heat treatment module removing indoor latent heat, the higher the speed of the fan supplying air to the latent heat treatment module, the faster the latent heat treatment module removes indoor latent heat; the lower the fan speed, the slower the latent heat treatment module removes indoor latent heat. By making the rate of removal of indoor latent heat correspond to the current indoor relative humidity, the heat released by the condensation phase change of moisture in the air can be reduced during the process of lowering the indoor temperature, and the energy consumed by the latent heat treatment module can also be reduced, further improving the air conditioning energy efficiency ratio.

[0024] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0025] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrative descriptions and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are considered similar elements, and wherein:

[0026] Figure 1 This is a schematic diagram of the structure of a latent heat type air conditioner provided in an embodiment of this disclosure;

[0027] Figure 2 This is a schematic diagram of a control method for a latent heat type air conditioner provided in an embodiment of this disclosure;

[0028] Figure 3 This is a schematic diagram of a control method for a latent heat type air conditioner provided in an embodiment of this disclosure;

[0029] Figure 4 This is a schematic diagram of a control device for a latent heat type air conditioner provided in an embodiment of this disclosure;

[0030] Figure 5 This is a schematic diagram of a control device for a latent heat type air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0031] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0032] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0033] Unless otherwise stated, the term "multiple" means two or more.

[0034] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0035] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0036] In this embodiment of the disclosure, "latent heat type air conditioner" refers to an air conditioner that includes a latent heat treatment module. For example, an air conditioner is equipped with a dehumidification module, which transfers the heat generated by the condensation of moisture in the air to the outside.

[0037] Figure 1 This is a schematic diagram of the structure of a latent heat type air conditioner provided in an embodiment of this disclosure.

[0038] Combination Figure 1 As shown, the latent heat type air conditioner includes a compressor 11, a condenser 12, an evaporator 13, a four-way valve 14, a latent heat treatment module 15, and a fan 16. The latent heat treatment module 15 includes an indoor air circulation duct 151 and an outdoor air circulation duct 152.

[0039] The current relative humidity treatment process of the latent heat treatment module 15 includes a moisture absorption process and a regeneration process. The moisture absorption process refers to adsorbing moisture in the air into the latent heat treatment module 15 to reduce the humidity in the air. The regeneration process is to release the moisture in the latent heat treatment module 15 into the air to reduce the humidity in the latent heat treatment module 15.

[0040] The fan 16 provides airflow to the latent heat treatment module 15. During the moisture absorption process of the latent heat treatment module 15, the indoor air circulation duct 151 is opened and the outdoor air circulation duct 152 is closed. The airflow provided by the fan 16 to the latent heat treatment module 15 passes through the indoor air circulation duct 151 to reduce the indoor air humidity. During the regeneration process of the latent heat treatment module 16, the indoor air circulation duct 151 is closed and the outdoor air circulation duct 152 is opened to release the moisture in the latent heat treatment module 15 to the outside.

[0041] The latent heat treatment module 15 alternately performs the moisture absorption process and the regeneration process. When the latent heat treatment module 15 is in the moisture absorption process, it detects the weight, conductivity, etc. If the weight or conductivity is greater than or equal to a certain value, the latent heat treatment module 15 enters the regeneration process. When the latent heat treatment module 15 is in the regeneration process, it detects the weight, conductivity, etc. If the weight or conductivity is less than or equal to another value, the latent heat treatment module 16 enters the moisture absorption process.

[0042] The latent heat treatment module 15 can be cooled, for example by using external cold water or the cooling capacity of the evaporator, to absorb the heat generated by the condensation phase change of moisture in the air; the latent heat treatment module 15 can be heated, for example by using external hot water, the heat of the condenser, the exhaust heat of the compressor, or electric heating, to release the moisture in the latent heat treatment module 15 into the air.

[0043] The latent heat treatment module 15 may include zeolite, silica gel, activated carbon, or organic polymer materials that are hydrophilic or water-absorbing.

[0044] Figure 2 This is a schematic diagram of a control method for a latent heat type air conditioner provided in an embodiment of this disclosure. This control method for the latent heat type air conditioner can be executed by the controller of the latent heat type air conditioner. Here, the control method for the latent heat type air conditioner is applied to... Figure 1 The latent heat type air conditioner shown is illustrated by way of example.

[0045] Combination Figure 2 As shown, the control method for thermal air conditioning includes:

[0046] S201. Obtain the current indoor relative humidity.

[0047] For example, the current indoor relative humidity can be obtained by detecting the relative humidity sensor on the indoor unit of a latent heat type air conditioner. Alternatively, the latent heat type air conditioner can communicate with a relative humidity sensor installed independently indoors or on other household appliances (such as a dehumidifier or humidifier), and the current indoor relative humidity can be obtained by detecting the relative humidity sensor installed independently indoors or on other household appliances.

[0048] S202. Based on the relationship between indoor relative humidity and fan speed, determine the first current fan speed corresponding to the current indoor relative humidity.

[0049] The correspondence between indoor relative humidity and rotation speed can be stored in the database in a one-to-one correspondence. After obtaining the current indoor relative humidity, the first current rotation speed corresponding to the current indoor relative humidity can be obtained by searching the database.

[0050] Alternatively, the relationship between indoor relative humidity and fan speed can be stored in the form of a formula, where indoor relative humidity is the independent variable and fan speed is the dependent variable. For example: when the indoor relative humidity is less than the first set relative humidity, the fan speed is determined to be the minimum speed of the fan; when the indoor relative humidity is greater than or equal to the first set relative humidity and less than or equal to the second set relative humidity, the fan speed is determined to be positively correlated with the indoor relative humidity; when the indoor relative humidity is greater than or equal to the second set relative humidity, the fan speed is determined to be the maximum speed of the fan.

[0051] The first and second set relative humidity here constitute a relative humidity range. This range can be the relative humidity range perceived by the user, in which case the first set relative humidity can be 45% to 55%, and the second set relative humidity can be 55% to 65%. For example, the first set relative humidity can be 45%, 50%, or 55%, and the second set relative humidity can be 55%, 60%, or 65%. Alternatively, this relative humidity range can be a range that is beneficial for preventing disease, in which case the first set relative humidity can be 40% to 50%, and the second set relative humidity can be 50% to 60%. For example, the first set relative humidity can be 40%, 45%, or 50%, and the second set relative humidity can be 50%, 55%, or 60%. Furthermore, this relative humidity range can be a range that is beneficial for extending the lifespan of furniture, in which case the first set relative humidity can be 35% to 45%, and the second set relative humidity can be 55% to 65%. For example, the first set relative humidity can be 35%, 40%, or 45%, and the second set relative humidity can be 55%, 60%, or 65%. The values ​​of the first and second set relative humidity listed here are for illustrative purposes only and do not constitute a limitation on the specific values ​​of the first and second set relative humidity. Those skilled in the art can determine the relative humidity range (i.e., the first and second set relative humidity) that is suitable for the actual application scenario.

[0052] The maximum speed of the aforementioned fan can be either the rated maximum speed or a set maximum speed; the minimum speed of the aforementioned fan can also be a set minimum speed. In some application scenarios, the higher the first set relative humidity, the higher the minimum speed of the fan; the lower the first set relative humidity, the lower the minimum speed of the fan. Similarly, the higher the second set relative humidity, the higher the maximum speed of the fan; the lower the second set relative humidity, the lower the maximum speed of the fan.

[0053] Thus, after obtaining the current indoor relative humidity, the relationship between the current indoor relative humidity and the first set relative humidity and the second set relative humidity is compared, and then an appropriate formula is selected to determine the first current speed corresponding to the current indoor relative humidity. If the current indoor relative humidity is less than the first set relative humidity, the first current speed is determined as the minimum speed of the fan; if the current indoor relative humidity is greater than or equal to the first set relative humidity and less than or equal to the second set relative humidity, the first current speed is determined as the maximum speed of the fan.

[0054] Therefore, when the relative humidity is high, the fan speed increases, resulting in more airflow to the latent heat treatment module. This leads to a higher adsorption rate of moisture in the air by the module, reducing condensation and heat release during cooling. Conversely, when the relative humidity is low, moisture is less likely to condense as the indoor temperature decreases, requiring a lower fan speed and thus lower fan power. This improves the energy efficiency ratio of latent heat-type air conditioners in both high and low relative humidity conditions.

[0055] In some application scenarios, when the current indoor relative humidity is less than 55%, the first current speed is determined as the minimum speed of the fan; when the current indoor relative humidity is greater than 65%, the first current speed is determined as the maximum speed of the fan; when the current indoor relative humidity is greater than or equal to 55% and less than or equal to 65%, the first current speed is determined as: H I ×(R max -R min ) / (65%-55%)+R min , where H I R represents the current indoor relative humidity. max R is the maximum speed of the fan. min This is the minimum speed of the fan.

[0056] Optionally, based on the relationship between indoor relative humidity and rotation speed, a first current rotation speed of the fan corresponding to the current indoor relative humidity is determined, including: obtaining the current temperature difference between the current indoor temperature and the set indoor temperature; and determining a first current rotation speed corresponding to the current indoor relative humidity and the current temperature difference based on the temperature difference, the relationship between indoor relative humidity and rotation speed, wherein the rotation speed and the temperature difference are positively correlated.

[0057] The correspondence between temperature difference, indoor relative humidity and rotation speed can be stored in the database. After obtaining the current temperature difference and current indoor relative humidity, the first current rotation speed corresponding to the current temperature difference and current indoor relative humidity can be obtained by searching the database.

[0058] Alternatively, first determine the temporary current speed corresponding to the current indoor relative humidity based on the correspondence between indoor temperature and speed, then determine the current correction value corresponding to the current temperature difference based on the positive correlation between temperature difference and correction value, adjust the temporary current speed according to the current correction value, and determine the adjusted temporary current speed as the first current speed.

[0059] The positive correlation between temperature difference and correction value can be stored in the database in a one-to-one correspondence. After obtaining the current temperature difference, the current correction value corresponding to the current temperature difference can be obtained by searching the database.

[0060] The temporary current speed can be adjusted based on the current correction value to obtain the first current speed: the product of the current correction value and the temporary current speed is used to determine the first current speed; or, the sum of the temporary current speed and the current correction value is used to determine the first current speed.

[0061] This latent heat type air conditioner control method is applied to the air conditioner's cooling mode. In cooling mode, if the current indoor temperature is higher than the set indoor temperature, the air conditioner has the function of lowering the current indoor temperature to the set indoor temperature. Furthermore, the greater the temperature difference between the current indoor temperature and the set indoor temperature, the higher the cooling power of the air conditioner.

[0062] A higher cooling capacity of an air conditioner means a lower evaporator coil temperature. This makes it easier for condensation phase change to occur in the evaporator coil when indoor air exchanges heat. Since the rotation speed is positively correlated with the temperature difference, a larger temperature difference results in a higher rotation speed, which accelerates the adsorption of moisture from the indoor air. This is more effective in reducing the relative humidity, minimizing the amount of moisture condensing during heat exchange in the evaporator coil, reducing the heat generated by this condensation, and lowering the energy consumption required to lower the indoor temperature. This further improves the air conditioner's energy efficiency ratio.

[0063] By employing the above technical solution, the increasing or decreasing trend of the first current rotational speed can be obtained. To obtain a more accurate first current rotational speed, the expected relative humidity corresponding to the current indoor relative humidity can be obtained; it is determined that the rate of change of the first current rotational speed is positively correlated with the expected relative humidity; wherein, the expected relative humidity refers to the relative humidity that can be achieved after eliminating the current temperature difference, provided that the absolute humidity in the room remains constant.

[0064] The above technical solution allows us to obtain the rate of change of the first current rotation speed, thereby determining a more accurate first current rotation speed. Furthermore, a higher expected relative humidity indicates a greater probability of condensation on the evaporator coil after the current indoor temperature drops to the set indoor temperature. In this case, increasing the rate of change of the first current rotation speed, such as rapidly increasing the first current rotation speed, can more quickly reduce the indoor relative humidity. This reduces the probability of condensation on the evaporator coil during the temperature drop, further improving the energy efficiency ratio of the latent heat type air conditioner.

[0065] For example, when the rotational speed is positively correlated with the indoor relative humidity, as the current indoor relative humidity changes (increases or decreases) by a unit relative humidity (e.g., changes by 1%), the first current rotational speed changes by a first rotational speed, which is positively correlated with the expected relative humidity; or, when the rotational speed is positively correlated with the temperature difference, as the temperature difference decreases by a unit temperature (e.g., decreases by 1°C), the first current rotational speed changes by a second rotational speed, which is positively correlated with the expected relative humidity.

[0066] Optionally, obtaining the expected relative humidity corresponding to the current indoor relative humidity includes: obtaining the average increase in relative humidity corresponding to the current temperature difference; and determining the expected relative humidity as the sum of the average increase in relative humidity and the current indoor relative humidity. For example, multiple increases in relative humidity under different current indoor temperatures and set indoor temperatures corresponding to the same current temperature difference can be obtained through experiments, and the average of the multiple increases in relative humidity can be determined as the average increase in relative humidity.

[0067] Alternatively, obtaining the expected relative humidity corresponding to the current indoor relative humidity may include: determining the current absolute humidity corresponding to the current relative humidity and the current indoor temperature based on the correspondence between relative humidity, temperature, and absolute humidity; and determining the expected relative humidity corresponding to the current absolute humidity and the set indoor temperature based on the correspondence between relative humidity, temperature, and absolute humidity.

[0068] This allows for a more accurate prediction of relative humidity.

[0069] S203. Control the fan according to the first current speed to deliver air to the indoor air circulation duct.

[0070] The fan is controlled according to a first current speed, causing it to operate at that speed. For example, a voltage corresponding to the first current speed is output to the fan, causing it to operate at that speed; or, a pulse width modulation (PWM) signal corresponding to the first current speed is output to the fan, causing it to operate at that speed.

[0071] During the process of the latent heat treatment module removing indoor latent heat, the higher the speed of the fan supplying air to the latent heat treatment module, the faster the latent heat treatment module removes indoor latent heat; the lower the fan speed, the slower the latent heat treatment module removes indoor latent heat. By making the rate of removal of indoor latent heat correspond to the current indoor relative humidity, the heat released by the condensation phase change of moisture in the air can be reduced during the process of lowering the indoor temperature, and the energy consumed by the latent heat treatment module can also be reduced, further improving the air conditioning energy efficiency ratio.

[0072] Figure 3This is a schematic diagram of a control method for a latent heat type air conditioner provided in an embodiment of this disclosure. The control method for this latent heat type air conditioner can be executed by the controller of the latent heat type air conditioner.

[0073] Combination Figure 3 As shown, the control method for latent heat type air conditioning includes:

[0074] S301. Obtain the current relative humidity processing procedure of the latent heat treatment module.

[0075] S302. When the current relative humidity processing process of the latent heat treatment module is a regeneration process, obtain the current outdoor relative humidity.

[0076] S303. Based on the relationship between outdoor relative humidity and rotation speed, determine the second current rotation speed of the fan corresponding to the current outdoor relative humidity.

[0077] The correspondence between outdoor relative humidity and rotation speed can be stored in the database in a one-to-one correspondence. After obtaining the current outdoor relative humidity, the second current rotation speed corresponding to the current outdoor relative humidity can be obtained by searching the database.

[0078] Alternatively, the relationship between outdoor relative humidity and fan speed can be stored in the form of a formula, where outdoor relative humidity is the independent variable and fan speed is the dependent variable. For example: when the outdoor relative humidity is greater than the third set relative humidity, the fan speed is determined to be the minimum speed of the fan; when the outdoor relative humidity is less than or equal to the third set relative humidity, but greater than or equal to the fourth set relative humidity, the fan speed is determined to be inversely correlated with the outdoor relative humidity; when the outdoor relative humidity is less than the fourth set relative humidity, the fan speed is determined to be the maximum speed of the fan.

[0079] The maximum speed of the aforementioned fan can be either the rated maximum speed or a set maximum speed; the minimum speed of the aforementioned fan can also be a set minimum speed. In some application scenarios, the lower the third set relative humidity, the higher the minimum speed of the fan; conversely, the higher the third set relative humidity, the lower the minimum speed of the fan; the higher the fourth set relative humidity, the lower the maximum speed of the fan; and the lower the second set relative humidity, the higher the maximum speed of the fan.

[0080] In some application scenarios, when the current outdoor relative humidity is less than 35%, the second current speed is determined to be the highest speed of the fan; when the current outdoor relative humidity is greater than 90%, the second current speed is determined to be the lowest speed of the fan; and when the current outdoor humidity is greater than or equal to 35% and less than or equal to 90%, the second current speed is determined to be: H. O ×(R max -R min ) / (90%-35%)+Rmin , where H O R represents the current indoor relative humidity. max R is the maximum speed of the fan. min This is the minimum speed of the fan.

[0081] S304. Control the fan according to the second current speed to supply air to the outdoor air circulation duct.

[0082] The fan is controlled according to a second current speed, causing it to operate at that speed. For example, a voltage corresponding to the second current speed is output to the fan, causing it to operate at that speed; or, a PWM signal corresponding to the second current speed is output to the fan, causing it to operate at that speed.

[0083] S305. When the current relative humidity processing process of the latent heat treatment module is a moisture absorption process, obtain the current indoor relative humidity.

[0084] S306. Based on the relationship between indoor relative humidity and fan speed, determine the first current fan speed corresponding to the current indoor relative humidity.

[0085] S307. Control the fan according to the first current speed to deliver air to the indoor air circulation duct.

[0086] Figure 4 This is a schematic diagram of a control device for a latent heat type air conditioner provided in an embodiment of this disclosure. The control device for the latent heat type air conditioner is implemented in software, hardware, or a combination of both. Here, the control device for the latent heat type air conditioner is described as... Figure 1 The latent heat type air conditioner shown is illustrated by way of example.

[0087] Combination Figure 4 As shown, the control device of the latent heat type air conditioner includes a first obtaining module 41, a first determining module 42, and a first control module 43; the first obtaining module 41 is configured to obtain the current indoor relative humidity; the first determining module 42 is configured to determine the first current speed of the fan corresponding to the current indoor relative humidity based on the correspondence between indoor relative humidity and speed; the first control module 43 is configured to control the fan according to the first current speed to deliver air to the indoor air circulation duct.

[0088] Optionally, the relationship between indoor relative humidity and rotation speed includes: when the indoor relative humidity is less than the first set relative humidity, determining the rotation speed as the minimum rotation speed of the fan; when the indoor relative humidity is greater than or equal to the first set relative humidity and less than or equal to the second set relative humidity, determining that the rotation speed is positively correlated with the indoor relative humidity; and when the indoor relative humidity is greater than or equal to the second set relative humidity, determining the rotation speed as the maximum rotation speed of the fan.

[0089] Optionally, the first determining module includes a first obtaining unit and a first determining unit. The first obtaining unit is configured to obtain the current temperature difference between the current indoor temperature and the set indoor temperature. The first determining unit is configured to determine a first current rotation speed corresponding to the current indoor relative humidity and the current temperature difference based on the temperature difference, the correspondence between indoor relative humidity and rotation speed, wherein the rotation speed is positively correlated with the temperature difference.

[0090] Optionally, the first determining module further includes a second obtaining unit and a second determining unit. The second obtaining unit is configured to obtain a expected relative humidity corresponding to the current indoor relative humidity. The expected relative humidity refers to the relative humidity that can be achieved after eliminating the current temperature difference, provided that the absolute humidity in the room remains unchanged. The second determining unit is configured to determine that the rate of change of the first current rotation speed is positively correlated with the expected relative humidity.

[0091] Optionally, the second obtaining unit is specifically configured to obtain the average increasing relative humidity corresponding to the current temperature difference; and to determine the expected relative humidity by summing the average increasing relative humidity with the current indoor relative humidity.

[0092] Alternatively, the second obtaining unit is specifically configured to determine the current absolute humidity corresponding to the current relative humidity and the current indoor temperature based on the correspondence between relative humidity, temperature and absolute humidity; and to determine the expected relative humidity corresponding to the current absolute humidity and the set indoor temperature based on the correspondence between relative humidity, temperature and absolute humidity.

[0093] Optionally, the latent heat treatment module further includes an outdoor air circulation duct, and the control device for the latent heat air conditioner further includes a second obtaining module, a second determining module, and a second control module; the second obtaining module is configured to obtain the current outdoor relative humidity when the current relative humidity treatment process of the latent heat treatment module is a regeneration process; the second determining module is configured to determine the second current speed of the fan corresponding to the current outdoor relative humidity based on the correspondence between outdoor relative humidity and speed; the second control module is configured to control the fan according to the second current speed to supply air to the outdoor air circulation duct.

[0094] Optionally, the relationship between outdoor relative humidity and rotation speed includes: when the outdoor relative humidity is greater than the third set relative humidity, the rotation speed is determined to be the minimum rotation speed of the fan; when the outdoor relative humidity is less than or equal to the third set relative humidity and greater than or equal to the fourth set relative humidity, the rotation speed is determined to be inversely correlated with the outdoor relative humidity; when the outdoor relative humidity is less than the fourth set relative humidity, the rotation speed is determined to be the maximum rotation speed of the fan.

[0095] In some embodiments, the control device for a latent heat type air conditioner includes a processor and a memory storing program instructions. The processor is configured to execute the control method for a latent heat type air conditioner provided in the foregoing embodiments when executing the program instructions.

[0096] Figure 5 This is a schematic diagram of a control device for a latent heat type air conditioner provided in an embodiment of this disclosure. (In conjunction with...) Figure 5 As shown, the control device for a latent heat type air conditioner includes:

[0097] The processor 51 and memory 52 may also include a communication interface 53 and a bus 54. The processor 51, communication interface 53, and memory 52 can communicate with each other via the bus 54. The communication interface 53 can be used for information transmission. The processor 51 can call logical instructions in the memory 52 to execute the latent heat type air conditioner control method provided in the foregoing embodiments.

[0098] Furthermore, the logic instructions in the aforementioned memory 52 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0099] The memory 52, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 51 executes functional applications and data processing by running the software programs, instructions, and modules stored in the memory 52, thereby implementing the methods in the above-described method embodiments.

[0100] The memory 52 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 52 may include high-speed random access memory and may also include non-volatile memory.

[0101] This disclosure provides a latent heat type air conditioner, which includes a latent heat treatment module, a fan, and a control device for the latent heat type air conditioner as provided in the foregoing embodiments. The latent heat treatment module includes an indoor air circulation duct; the fan provides airflow to the latent heat module; and the control device for the latent heat type air conditioner provided in the foregoing embodiments is used to control the fan.

[0102] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the control method for a latent heat type air conditioner provided in the foregoing embodiments.

[0103] This disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions, which, when executed by a computer, cause the computer to perform the latent heat type air conditioner control method provided in the foregoing embodiments.

[0104] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0105] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: USB flash drive, portable hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0106] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Additionally, when used in this application, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Unless otherwise specified, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes that element. In this document, each embodiment may focus on describing the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, then the relevant parts can be referred to the description of the method section.

[0107] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0108] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0109] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A control method for a latent heat type air conditioner, characterized in that, The latent heat type air conditioner includes a latent heat treatment module and a fan that provides airflow to the latent heat treatment module. The latent heat treatment module includes an indoor air circulation duct. The control method includes: Obtain the current indoor relative humidity; Obtain the current temperature difference between the current indoor temperature and the set indoor temperature; Based on the relationship between indoor relative humidity and rotation speed, a first current rotation speed of the fan corresponding to the current indoor relative humidity is determined, wherein the higher the current indoor relative humidity, the higher the first current rotation speed; or, based on the relationship between temperature difference, indoor relative humidity and rotation speed, a first current rotation speed corresponding to the current indoor relative humidity and the current temperature difference is determined, wherein the rotation speed is positively correlated with the temperature difference. Obtain the average increase in relative humidity corresponding to the current temperature difference; determine the expected relative humidity by summing the average increase in relative humidity with the current indoor relative humidity; or, Based on the correspondence between relative humidity, temperature, and absolute humidity, determine the current absolute humidity corresponding to the current indoor relative humidity and the current indoor temperature; based on the correspondence between relative humidity, temperature, and absolute humidity, determine the expected relative humidity corresponding to the current absolute humidity and the set indoor temperature. The rate of change of the first current rotational speed is determined to be positively correlated with the expected relative humidity. The fan is controlled according to the first current speed to deliver air to the indoor air circulation duct.

2. The method according to claim 1, characterized in that, The relationship between indoor relative humidity and rotation speed includes: When the indoor relative humidity is less than the first set relative humidity, the rotation speed is determined to be the minimum rotation speed of the fan; When the indoor relative humidity is greater than or equal to a first set relative humidity and less than or equal to a second set relative humidity, it is determined that the rotation speed is positively correlated with the indoor relative humidity. When the indoor relative humidity is greater than or equal to the second set relative humidity, the rotation speed is determined to be the maximum rotation speed of the fan.

3. The method according to claim 1, characterized in that, The latent heat treatment module further includes an outdoor air circulation duct, and the control method further includes: When the current relative humidity processing process of the latent heat treatment module is a regeneration process, the current outdoor relative humidity is obtained; Based on the relationship between outdoor relative humidity and rotation speed, determine the second current rotation speed of the fan corresponding to the current outdoor relative humidity; The fan is controlled according to the second current speed to supply air to the outdoor air circulation duct.

4. The method according to claim 3, characterized in that, The relationship between outdoor relative humidity and rotational speed includes: When the outdoor relative humidity is greater than the third set relative humidity, the rotation speed is determined to be the minimum rotation speed of the fan; When the outdoor relative humidity is less than or equal to a third set relative humidity and greater than or equal to a fourth set relative humidity, the rotation speed is determined to be inversely correlated with the outdoor relative humidity. When the outdoor relative humidity is less than the fourth set relative humidity, the rotation speed is determined to be the maximum rotation speed of the fan.

5. A control device for a latent heat type air conditioner, characterized in that, The latent heat type air conditioner includes a latent heat treatment module and a fan that provides airflow to the latent heat treatment module. The latent heat treatment module includes an indoor air circulation duct. The control device includes: The first acquisition module is configured to acquire the current indoor relative humidity; The first determining module includes: a first obtaining unit, configured to obtain the current temperature difference between the current indoor temperature and the set indoor temperature; The first determining module is configured to determine the first current rotational speed of the fan corresponding to the current indoor relative humidity based on the correspondence between indoor relative humidity and rotational speed, wherein the higher the current indoor relative humidity, the higher the first current rotational speed; or, the first determining module includes a first determining unit, which is configured to determine the first current rotational speed corresponding to the current indoor relative humidity and the current temperature difference based on the correspondence between temperature difference, indoor relative humidity and rotational speed, wherein the rotational speed and the temperature difference are positively correlated. The first determination module also includes: The second obtaining unit is configured to obtain the average increasing relative humidity corresponding to the current temperature difference; and to determine the expected relative humidity by summing the average increasing relative humidity with the current indoor relative humidity; or, it is configured to determine the current absolute humidity corresponding to the current relative humidity and the current indoor temperature based on the correspondence between relative humidity, temperature and absolute humidity; and to determine the expected relative humidity corresponding to the current absolute humidity and the set indoor temperature based on the correspondence between relative humidity, temperature and absolute humidity. The second determining unit is configured to determine that the rate of change of the first current rotational speed is positively correlated with the expected relative humidity; The first control module is configured to control the fan according to the first current speed to deliver air to the indoor air circulation duct.

6. A control device for a latent heat type air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the control method for a latent heat type air conditioner as described in any one of claims 1 to 4 when executing the program instructions.

7. A latent heat type air conditioner, characterized in that, include: The latent heat treatment module includes an indoor air circulation duct; The fan provides airflow to the latent heat treatment module; The control device for a latent heat type air conditioner as described in claim 5 or 6.

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