Air conditioning unit and control method thereof

Abstract

The invention relates to the technical field of air conditioners, and discloses an air conditioning unit and a control method thereof. The air conditioning unit comprises a unit body, an evaporator, a fan and an air volume adjusting valve; an air inlet duct, an air return duct and an air supply duct are formed in the unit body, the air inlet end of the air return duct communicates with the air supply duct, and the air outlet end of the air return duct communicates with the air inlet duct. The evaporator is located between the air inlet duct and the air supply duct. The air outlet end of the air return duct and the air inlet end of the air inlet duct are located on the same side of the evaporator. The fan is located between the air outlet end of the air inlet duct and the air inlet end of the air supply duct and used for feeding fresh air treated by the evaporator in the air inlet duct into the air supply duct. The air volume adjusting valve is arranged in the air return duct, and under the condition that the air volume adjusting valve is opened, the air return duct can bypass cooled fresh air to the air inlet duct. According to the unit, under the condition that the refrigerating capacity of the unit is not increased, fresh air with the lower temperature is obtained, the unit configuration is reduced while the refrigeration requirement is met, and resources are saved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air conditioners, for example, to an air conditioner unit and its control method. Background Art

[0002] When the outdoor temperature is relatively high, the cooling effect of the fresh air unit will be significantly reduced. For example, when the inlet air temperature of the air inlet is 38 degrees Celsius, the fresh air after being treated by the evaporator can be reduced to 20 degrees Celsius. After other heat losses, the temperature entering the indoor side reaches about 25 degrees Celsius, which has reached the processing limit of the unit. In order to enable the fresh air unit to further reduce the indoor side temperature when the outdoor temperature is relatively high, the related technology usually realizes this by increasing the refrigerating capacity of the main unit or reducing the air volume of the unit. When the required air supply temperature of the unit is relatively low, if the air volume is too small, it cannot meet the air change rate on the indoor side, and only increasing the refrigerating capacity of the unit can be selected to meet the requirement of the outlet air temperature. This causes the unit with a large refrigerating capacity to only operate at a high load for a long time to meet the outlet air temperature and cooling capacity, and the unit with a large refrigerating capacity can only operate at a low frequency for the rest of the time, resulting in waste such as uncoordinated resources.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0004] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preamble to the subsequent detailed description.

[0005] The embodiments of the present disclosure provide an air conditioner unit and its control method, which can obtain fresher air with a lower temperature without increasing the refrigerating capacity of the unit, can reduce the unit configuration while meeting the refrigeration demand, and save resources.

[0006] According to a first aspect of the present disclosure, there is provided an air conditioner unit, including:

[0007] A unit main body, inside which an air inlet duct, an air return duct, and an air supply duct are formed. The air inlet end of the air return duct is communicated with the air supply duct, and the air outlet end of the air return duct is communicated with the air inlet duct;

[0008] An evaporator, the air duct is located between the air inlet duct and the air supply duct, and the air outlet end of the air return duct and the air inlet end of the air inlet duct are located on the same side of the evaporator;

[0009] A fan, located between the air outlet end of the air inlet duct and the air inlet end of the air supply duct, for sending the fresh air treated by the evaporator in the air inlet duct into the air supply duct;

[0010] An air volume regulating valve is arranged in the return air duct. When the air volume regulating valve is opened, the return air duct can bypass the cooled fresh air to the supply air duct.

[0011] In some embodiments, the direction towards which the supply air end of the supply air duct faces is perpendicular to the direction towards which the air outlet end of the return air duct faces.

[0012] The fresh air introduced at the supply air end of the supply air duct and the fresh air discharged at the air outlet end of the return air duct can intersect vertically, which helps the two kinds of fresh air to be fully mixed.

[0013] In some embodiments, the number of air outlet ends of the return air duct is multiple, and the multiple air outlet ends of the return air duct are arranged around the central axis of the supply air duct.

[0014] The fresh air in the return air duct can be discharged from multiple air outlet ends, so that the fresh air discharged from the return air duct can intersect with the fresh air introduced at the supply air end of the supply air duct at multiple positions, which helps the two kinds of fresh air to be fully mixed.

[0015] In some embodiments, the air conditioner unit further includes:

[0016] A filtering component, which is arranged in the supply air duct and is closer to the supply air end of the supply air duct than the evaporator.

[0017] In some embodiments, the supply air end of the supply air duct and the air outlet end of the return air duct are located on the same side of the filtering component. Since the filtering component is closer to the supply air end of the supply air duct than the evaporator, the mixed fresh air will first pass through the filtering component and then flow through the evaporator, which helps to keep the surface of the evaporator clean and enables the evaporator to maintain a high heat exchange efficiency.

[0018] In some embodiments, the air conditioner unit further includes: a humidifying component, which is arranged in the supply air duct, the evaporator is closer to the supply air end of the supply air duct than the humidifying component, and the supply air end of the supply air duct and the air outlet end of the return air duct are located on the same side of the humidifying component.

[0019] Since the evaporator is closer to the supply air end of the supply air duct than the humidifying component, the fresh air will first pass through the evaporator and then through the humidifying component. In the humidifying mode, the fresh air will flow through the evaporator and then be humidified by the humidifying component, which can prevent the humidified fresh air from contacting the evaporator and avoid serious condensation or frosting on the evaporator.

[0020] In some embodiments, the air conditioner unit further includes: an air intensity detection part, which is arranged at the air outlet end of the supply air duct and is used to detect the air intensity parameter at the air outlet end of the supply air duct.

[0021] In some embodiments, the wind intensity detection unit is an air volume meter, and the wind intensity parameter is the air volume; alternatively, the wind intensity detection unit is a wind pressure sensor, and the wind intensity parameter is the wind pressure.

[0022] In some embodiments, the air conditioner unit further includes: a controller, which is communicatively connected to the blower and the air volume regulating valve respectively, and is configured to control the rotational speed of the blower and the opening degree of the air volume regulating valve.

[0023] According to a second aspect of the present disclosure, there is provided a control method for an air conditioner unit, which is applied to the air conditioner unit provided in the second aspect of the present disclosure, and includes:

[0024] Obtain the temperature in the compartment and determine the temperature change information of the compartment;

[0025] Control the opening degree of the air volume regulating valve according to the temperature change information.

[0026] In some embodiments, the control method further includes:

[0027] Obtain the wind intensity parameter at the air outlet end of the air supply duct;

[0028] Controlling the opening degree of the air volume regulating valve according to the temperature change information includes: controlling the opening degree of the air volume regulating valve and the rotational speed of the blower according to the temperature change information.

[0029] The air conditioner unit and its control method provided by the embodiments of the present disclosure can achieve the following technical effects:

[0030] For the fresh air processed by the evaporator, when the air volume regulating valve is opened, the return air duct can bypass the cooled fresh air to the intake air duct. Specifically, after the fresh air processed by the evaporator enters the air supply duct, a part of the fresh air processed by the evaporator enters the compartment through the air outlet end of the air supply duct, while another part of the fresh air processed by the evaporator is sent back to the intake air duct through the return air duct, so that the unprocessed fresh air introduced by the intake air duct can be mixed with the fresh air processed by the evaporator, thereby pre-lowering the temperature of the unprocessed fresh air. The mixed fresh air has a lower temperature than the unprocessed fresh air, which can improve the heat exchange effect of the evaporator, help the evaporator further lower the temperature of the fresh air, and thus can further lower the temperature in the compartment. The above air conditioner unit can obtain fresh air with a lower temperature without increasing the refrigeration capacity of the unit, can reduce the unit configuration while meeting the refrigeration demand, and save resources.

[0031] In addition, the temperature of the mixed fresh air is lower than that of the fresh air without being treated by the evaporator, which helps to reduce the temperature of the fresh air below the dew point so that condensation can form on the evaporator for the fresh air to achieve the dehumidification effect. Moreover, the fresh air sent back to the intake air duct through the return air duct can also be dehumidified a second time by the evaporator, so that the dehumidification can be more thorough and the dehumidification effect can be further improved.

[0032] The above general description and the following description are only exemplary and explanatory and are not intended to limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0034] Figure 1 is a structural diagram of an air conditioning unit provided by an embodiment of the present disclosure;

[0035] Figure 2 is a schematic diagram of the fresh air flow direction of an air conditioning unit provided by an embodiment of the present disclosure;

[0036] Figure 3 is a structural diagram of another air conditioning unit provided by an embodiment of the present disclosure;

[0037] Figure 4 is a schematic layout diagram of the air outlet end of a return air duct in an intake air duct provided by an embodiment of the present disclosure;

[0038] Figure 5 is a schematic flow diagram of a control method for an air conditioning unit provided by an embodiment of the present disclosure;

[0039] Figure 6 is a schematic structural diagram of a controller provided by an embodiment of the present disclosure.

[0040] Reference Numerals:

[0041] 1 - unit body, 11 - intake air duct, 12 - return air duct, 13 - supply air duct;

[0042] 2 - evaporator;

[0043] 3 - fan;

[0044] 4 - air volume regulating valve;

[0045] 5 - filter assembly;

[0046] 6 - humidifying assembly;

[0047] 7 - air intensity detection unit;

[0048] 8 - Controller. Detailed implementation mode

[0049] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference and illustration only, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0050] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0051] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is the orientation or positional relationship based on the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0052] In addition, the terms "set", "connect", "fix" should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0053] Unless otherwise specified, the term "plurality" means two or more.

[0054] In the embodiments of the present disclosure, the character " / " means that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0055] The term "and / or" describes the relationship between objects and indicates that there can be three relationships. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0056] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0057] When the temperature outdoors is relatively high, the cooling effect of the fresh air unit will be significantly reduced. For example, when the temperature of the fresh air entering the air inlet is 38 °C, the fresh air treated by the evaporator can be reduced to 20 °C, and after other heat losses, the temperature entering the indoor side reaches about 25 °C, which has reached the processing limit of the unit. Moreover, too high a temperature of the fresh air is also not conducive to dehumidification.

[0058] In order to enable the fresh air unit to further reduce the temperature on the indoor side when the temperature outdoors is relatively high, the related art usually achieves this by increasing the cooling capacity of the main unit or reducing the air volume of the unit. When the required air supply temperature of the unit is relatively low, if the air volume is too small, it cannot meet the air change rate on the indoor side, and only by continuing to increase the cooling capacity of the unit can the requirement of the outlet air temperature be met. This results in a large-cooling-capacity unit only operating at a high load for a long time to meet the outlet air temperature and cooling capacity, and at other times, the large-cooling-capacity unit can only operate at a low frequency, causing waste such as resource incoordination.

[0059] Combined with Figure 1 As shown, the embodiments of the present disclosure provide an air conditioning unit, which includes a unit body 1, an evaporator 2, a fan 3, and an air volume regulating valve 4. An air inlet duct 11, a return air duct 12, and a supply air duct 13 are formed inside the unit body 1. The air inlet end of the return air duct 12 is communicated with the supply air duct 13, and the air outlet end of the return air duct 12 is communicated with the air inlet duct 11. The air volume regulating valve 4 is arranged in the return air duct 12. The evaporator 2 is arranged between the air inlet duct 11 and the supply air duct 13, and the air outlet end of the return air duct 12 and the air inlet end of the air inlet duct 11 are located on the same side of the evaporator 2. The fan 3 is located between the air outlet end of the air inlet duct 11 and the air inlet end of the supply air duct 13, and is used to send the fresh air treated by the evaporator 2 in the air inlet duct 11 into the supply air duct 13. When the air volume regulating valve 4 is opened, the return air duct 12 can bypass the cooled fresh air to the air inlet duct 11.

[0060] In Figure 1 and Figure 4 the air inlet end of the air inlet duct 11 is denoted as A, the air outlet end of the air inlet duct 11 is denoted as B, the air inlet end of the supply air duct 13 is denoted as C, the air outlet end of the supply air duct 13 is denoted as D, the air inlet end of the return air duct 12 is denoted as E, and the air outlet end of the return air duct 12 is denoted as F.

[0061] Figure 2It is the fresh air flow diagram of the air conditioner unit provided by the embodiments of the present disclosure. In Figure 2 it, the arrows indicate the flow direction of the fresh air. Combining Figure 1 and Figure 2 as shown, when the air conditioner unit starts to work, the outdoor fresh air is introduced from the inlet end of the air inlet duct 11 and flows through the evaporator 2. The fresh air processed by the evaporator 2 enters the blower 3 through the outlet end of the air inlet duct 11, and then enters the air supply duct 13 from the inlet end of the air supply duct 13. When the air volume regulating valve 4 is opened, the return air duct 12 can bypass the cooled fresh air to the air inlet duct 11. Specifically, after the fresh air processed by the evaporator 2 enters the air supply duct 13, a part of the fresh air processed by the evaporator 2 enters the compartment through the outlet end of the air supply duct 13; another part of the fresh air processed by the evaporator 2 enters the return air duct 12 from the inlet end of the return air duct 12, and is sent back to the air inlet duct 11 from the outlet end of the return air duct 12, and is mixed with the fresh air that enters from the inlet end of the air inlet duct 11 and has not been processed by the evaporator 2. The mixed fresh air will flow through the evaporator 2, and then repeat the above process. It should be noted here that the fresh air flowing in the air conditioner unit is all the air introduced from the outside, not the air in the compartment where the air conditioner unit is located.

[0062] In some embodiments, combining Figure 3 as shown, the air conditioner unit further includes a controller 8. The controller 8 can be separately arranged from the unit body 1, or the controller 8 can be arranged in the unit body 1. The controller 8 is respectively communicatively connected to the blower 3 and the air volume regulating valve 4, and is used to control the rotation speed of the blower 3 and the opening degree of the air volume regulating valve 4. For example, the controller 8 can obtain the temperature in the compartment, determine the temperature change information in the compartment, and control the opening degree of the air volume regulating valve 4 according to the temperature change information.

[0063] For the air conditioner unit provided by the embodiments of the present disclosure, for the fresh air processed by the evaporator 2, when the air volume regulating valve 4 is opened, the return air duct 12 can bypass the cooled fresh air to the air inlet duct 11. Specifically, after the fresh air processed by the evaporator 2 enters the air supply duct 13, a part of the fresh air processed by the evaporator 2 enters the compartment through the outlet end of the air supply duct 13, while another part of the fresh air processed by the evaporator 2 is sent back to the air inlet duct 11 through the return air duct 12, so that the fresh air that enters from the air inlet duct 11 and has not been processed by the evaporator 2 can be mixed with the fresh air processed by the evaporator 2, thereby pre-lowering the temperature of the fresh air that has not been processed by the evaporator 2. The mixed fresh air is lower in temperature than the fresh air that has not been processed by the evaporator 2, which can improve the heat exchange effect of the evaporator 2, help the evaporator 2 further lower the temperature of the fresh air, and thus can further lower the temperature in the compartment. The above air conditioner unit can obtain fresh air with a lower temperature without increasing the refrigerating capacity of the unit, can reduce the unit configuration while meeting the refrigeration demand, and save resources.

[0064] In addition, the temperature of the mixed fresh air is lower than that of the fresh air that has not passed through the evaporator 2, which helps to reduce the temperature of the fresh air below the dew point so that dew forms on the evaporator 2 to achieve the dehumidification effect. Moreover, the fresh air sent back to the air inlet duct 11 through the return air duct 12 can also be dehumidified a second time by the evaporator 2, so that the dehumidification can be more thorough and the dehumidification effect can be further improved.

[0065] In some embodiments, the direction towards which the air inlet end of the air inlet duct 11 faces is perpendicular to the direction towards which the air outlet end of the return air duct 12 faces. The fresh air introduced at the air inlet end of the air inlet duct 11 and the fresh air discharged from the air outlet end of the return air duct 12 can intersect vertically, which helps the two kinds of fresh air to be fully mixed.

[0066] In some embodiments, the number of air outlet ends of the return air duct 12 is multiple, and the multiple air outlet ends of the return air duct 12 are arranged around the center line of the air inlet duct 11. The fresh air in the return air duct 12 can be discharged from the multiple air outlet ends, so that the fresh air discharged from the return air duct 12 can intersect with the fresh air introduced at the air inlet end of the air inlet duct 11 at multiple positions, which helps the two kinds of fresh air to be fully mixed.

[0067] In some embodiments, when the number of air outlet ends of the return air duct 12 is multiple, the direction towards which each air outlet end of the return air duct 12 faces is perpendicular to the direction towards which the air inlet end of the air inlet duct 11 faces.

[0068] In some embodiments, the air conditioner unit further includes a filter assembly 5, and the filter assembly 5 is arranged in the air inlet duct 11, and the filter assembly 5 can filter the fresh air.

[0069] In some embodiments, the filter assembly 5 is closer to the air inlet end of the air inlet duct 11 than the evaporator 2, and the air inlet end of the air inlet duct 11 and the air outlet end of the return air duct 12 are on the same side of the filter assembly 5. Since the filter assembly 5 is closer to the air inlet end of the air inlet duct 11 than the evaporator 2, the mixed fresh air will first pass through the filter assembly 5 and then flow through the evaporator 2, which helps to keep the surface of the evaporator 2 clean and enables the evaporator 2 to maintain a high heat exchange efficiency.

[0070] In some embodiments, the air-conditioning unit further includes a humidifying component 6, which can humidify the fresh air. The humidifying component 6 is arranged in the air inlet duct 11. The evaporator 2 is closer to the air inlet end of the air inlet duct 11 than the humidifying component 6. The air inlet end of the air inlet duct 11 and the air outlet end of the air return duct 12 are on the same side of the humidifying component 6. Since the evaporator 2 is closer to the air inlet end of the air inlet duct 11 than the humidifying component 6, the fresh air will first pass through the evaporator 2 and then through the humidifying component 6. In the humidifying mode, the fresh air will flow through the evaporator 2 and then be humidified by the humidifying component 6, which can prevent the humidified fresh air from contacting the evaporator 2 and avoid serious condensation or frosting on the evaporator 2.

[0071] In some embodiments, the air-conditioning unit further includes a wind intensity detection unit 7, which is arranged at the air outlet end of the air supply duct 13 and is used to detect the wind intensity parameter at the air outlet end of the air supply duct 13. Among them, the controller 8 can be communicatively connected to the wind intensity detection unit 7 to obtain the wind intensity parameter at the air outlet end of the air supply duct through the wind intensity detection unit 7.

[0072] The wind intensity detection unit 7 can be an air flow meter or a wind pressure sensor. When the wind intensity detection unit 7 is an air flow meter, the wind intensity parameter is the air volume; when the wind intensity detection unit 7 is a wind pressure sensor, the wind intensity parameter is the wind pressure.

[0073] Combined with the air-conditioning unit provided by the embodiments of the present disclosure, Figure 5 As shown, the embodiments of the present disclosure provide a control method for an air-conditioning unit. The control method includes:

[0074] S501, the controller obtains the temperature in the compartment and determines the temperature change information of the compartment.

[0075] S502, the controller controls the opening degree of the air volume regulating valve according to the temperature change information.

[0076] In some embodiments, the temperature change information may include the cooling rate. The controller controls the opening degree of the air volume regulating valve according to the cooling rate. Specifically, the opening degree of the air volume regulating valve is negatively correlated with the cooling rate. That is to say, the slower the cooling rate, the larger the opening degree of the air volume regulating valve should be.

[0077] Optionally, based on the change relationship between the opening degree of the air volume regulating valve and the cooling rate, a conversion relationship between the cooling rate and the opening degree of the air volume regulating valve can be constructed, so as to dynamically control the opening degree of the air volume regulating valve based on the cooling rate and the conversion relationship, so that the temperature in the compartment can drop to the set temperature.

[0078] In some embodiments, the temperature change information may include the cooling rate, the temperature difference between the current temperature and the set temperature, and the controller controls the opening degree of the air volume regulating valve according to the cooling rate and the temperature difference. Specifically, the opening degree of the air volume regulating valve is negatively correlated with the cooling rate, and the opening degree of the air volume regulating valve is positively correlated with the temperature difference. That is to say, the slower the cooling rate and the larger the temperature difference, the larger the opening degree of the air volume regulating valve should be.

[0079] Optionally, based on the variation relationship between the opening degree of the air volume regulating valve and the cooling rate and the temperature difference, the conversion relationship between the cooling rate, the temperature difference and the opening degree of the air volume regulating valve can be obtained, so as to dynamically control the opening degree of the air volume regulating valve based on the cooling rate, the temperature difference and the conversion relationship, so that the temperature of the compartment can drop to the set temperature.

[0080] In some embodiments, the controller can obtain the air intensity parameter at the air outlet end of the air supply duct, and the controller can control the rotation speed of the fan according to the air intensity parameter at the air outlet end, so as to keep the air volume at the air outlet end of the air supply duct stable.

[0081] In some embodiments, controlling the opening degree of the air volume regulating valve according to the temperature change information includes: controlling the opening degree of the air volume regulating valve and the rotation speed of the fan according to the temperature change information.

[0082] In some embodiments, the temperature change information may include the cooling rate, and the controller controls the opening degree of the air volume regulating valve and the rotation speed of the fan according to the cooling rate. Specifically, the opening degree of the air volume regulating valve is negatively correlated with the cooling rate. That is to say, the slower the cooling rate, the larger the opening degree of the air volume regulating valve should be. The rotation speed of the fan is negatively correlated with the cooling rate. That is to say, the slower the cooling rate, the faster the opening degree of the air volume regulating valve should be.

[0083] Optionally, based on the variation relationship between the opening degree of the air volume regulating valve and the cooling rate, the conversion relationship between the cooling rate and the opening degree of the air volume regulating valve can be constructed. Based on the variation relationship between the rotation speed of the fan and the cooling rate, the conversion relationship between the cooling rate and the rotation speed of the fan can be constructed. Dynamically control the opening degree of the air volume regulating valve based on the cooling rate and the conversion relationship, and dynamically control the rotation speed of the fan based on the cooling rate and the conversion relationship, so that the temperature of the compartment can drop to the set temperature.

[0084] Combined with Figure 6As shown, the controller 8 includes a processor 81 and a memory 82. Optionally, the controller 8 may further include a communication interface 83 and a bus 84. Among them, the processor 81, the communication interface 83, and the memory 82 can communicate with each other through the bus 84. The communication interface 83 can be used for information transmission. The processor 81 can call the logical instructions in the memory 82 to execute the control method for the air-conditioning unit in the above embodiments.

[0085] In addition, when the logical instructions in the above-mentioned memory 82 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0086] The memory 82, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. The processor 81 executes functional applications and data processing by running the program instructions / modules stored in the memory 82, that is, implements the control method for the air-conditioning unit in the above embodiments.

[0087] The memory 82 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 82 may include a high-speed random access memory and may also include a non-volatile memory.

[0088] The embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are set to execute the above-mentioned control method for the air-conditioning unit.

[0089] The technical solutions of the embodiments of the present 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 for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, such as: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc, etc., which are various media that can store program codes.

[0090] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, 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 terms used in this disclosure are only for describing embodiments and do not limit the claims. As used in the description of embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to also include the plural forms. Similarly, as used in this disclosure, the term "and / or" refers to any and all possible combinations including one or more of the associated listed items. Additionally, when used in this disclosure, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groupings of these. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, or apparatus comprising the element. Herein, each embodiment may focus on the differences from other embodiments, and the same or similar parts among the embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, the relevant parts may refer to the description of the method part.

[0091] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, 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. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

[0092] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner may depend on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The skilled person can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0093] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the couplings, direct couplings, or communication connections shown or discussed with each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, the functional units in the embodiments of the present disclosure can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0094] 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 the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a segment of code, or a portion thereof that contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks may occur in a different order than noted in the accompanying drawings. For example, two consecutive blocks may in fact be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may in fact be executed substantially in parallel, or they may sometimes be executed in the 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 by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. An air conditioning unit, characterized in that, Comprising: The main body of the unit, inside which there are formed an air inlet duct, a return air duct and a supply air duct. The air inlet end of the return air duct is communicated with the supply air duct, and the air outlet end of the return air duct is communicated with the air inlet duct. The evaporator, which is located between the air inlet duct and the supply air duct. The air outlet end of the return air duct and the air inlet end of the air inlet duct are located on the same side of the evaporator. The fan, which is located between the air outlet end of the air inlet duct and the air inlet end of the supply air duct, and is used to send the fresh air processed by the evaporator in the air inlet duct into the supply air duct. The air volume regulating valve, which is arranged in the return air duct. When the air volume regulating valve is opened, the return air duct can bypass the cooled fresh air to the air inlet duct.

2. The air conditioner unit according to claim 1, characterized in that, The direction towards which the air inlet end of the air inlet duct faces is perpendicular to the direction towards which the air outlet end of the return air duct faces.

3. The air conditioner unit according to claim 1 or 2, characterized in that, The number of the air outlet ends of the return air duct is multiple, and the multiple air outlet ends of the return air duct are arranged around the central line of the air inlet duct.

4. The air-conditioning unit according to claim 1, characterized in that, Further comprising: The filtering component, which is arranged in the air inlet duct, and the filtering component is closer to the air inlet end of the air inlet duct than the evaporator.

5. The air conditioner unit according to claim 1, wherein, Further comprising: The humidifying component, which is arranged in the air inlet duct. The evaporator is closer to the air inlet end of the air inlet duct than the humidifying component, and the air inlet end of the air inlet duct and the air outlet end of the return air duct are located on the same side of the humidifying component.

6. The air-conditioning unit according to any one of claims 1 to 5, characterized in that, Further comprising: The air intensity detection part, which is arranged at the air outlet end of the supply air duct and is used to detect the air intensity parameter at the air outlet end of the supply air duct.

7. The air conditioner unit according to claim 6, wherein, The air intensity detection part is an air volume meter, and the air intensity parameter is the air volume. Or, the air intensity detection part is a wind pressure sensor, and the air intensity parameter is the wind pressure.

8. The air-conditioning unit according to any one of claims 1 to 7, characterized in that, Further comprising: The controller, which is respectively communicatively connected with the fan and the air volume regulating valve, and is used to control the rotation speed of the fan and the opening degree of the air volume regulating valve.

9. A control method for an air conditioning unit, applied to the air conditioning unit according to any one of claims 1 to 8, characterized in that, Comprising: Obtaining the temperature in the compartment and determining the temperature change information of the compartment. Controlling the opening degree of the air volume regulating valve according to the temperature change information.

10. The control method according to claim 9, wherein Further comprising: Obtaining the air intensity parameter at the air outlet end of the supply air duct. Controlling the opening degree of the air volume regulating valve according to the temperature change information includes: controlling the opening degree of the air volume regulating valve and the rotation speed of the fan according to the temperature change information.

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