Secondary heat exchange air conditioning and its control method

Abstract

This application relates to the field of home appliance technology and discloses a secondary heat exchange air conditioner, including: an air conditioner body, a refrigerant heat exchanger, a secondary heat exchange component, and a fan. The air conditioner body has an air outlet and internally defines a first air duct and a second air duct; the refrigerant heat exchanger is disposed within the first air duct; one end of the secondary heat exchange component is connected to the refrigerant heat exchanger, and the other end is provided with an indoor heat exchanger, with the portion of the secondary heat exchange component connected to the refrigerant heat exchanger located within the first air duct, and the portion with the indoor heat exchanger located within the second air duct; the fan is disposed within the second air duct and located to one side of the indoor heat exchanger. In this application, the airflow temperature can be effectively adjusted, controlling the temperature of the outlet airflow within a suitable range, avoiding the situation where the outlet airflow is too harsh due to a sudden drop in temperature, improving the comfort of the air conditioner's airflow, and enhancing the user experience. This application also discloses a control method for a secondary heat exchange air conditioner.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, for example to a secondary heat exchange air conditioner and its control method. Background Technology

[0002] Currently, with the improvement of people's living standards, air conditioners have become an indispensable home appliance for most families. Users' demands for air conditioners are no longer limited to cooling or heating functions. They are also constantly increasing their requirements for the air delivery method and the comfort of the air delivery, which has accelerated the diversified development of the air conditioning industry.

[0003] In related technologies, there is an air conditioner where the indoor unit typically uses methods such as adjusting the angle of the air guide plate to adjust the direction of airflow and opening holes in components such as the air guide plate and louvers to weaken the airflow in order to prevent cold air from blowing into people. Although these designs can soften the airflow and enhance the comfort of air delivery, the air conditioner still directly uses a refrigerant heat exchanger to cool the room. Since the refrigerant heat exchanger has a high cooling capacity, it can easily cause a sudden drop in the temperature of the airflow, making the air from the air conditioner quite pungent and affecting the comfort of the airflow.

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

[0005] Cooling the room using a single refrigerant heat exchanger can easily result in the air from the air conditioner being quite pungent, reducing the comfort of the airflow. 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 secondary heat exchange air conditioner and its control method, which can effectively regulate the airflow temperature and control the temperature of the outlet airflow within a suitable range. This avoids the situation where the outlet airflow is too cold due to a sudden drop in temperature, thereby improving the comfort of the air conditioner and enhancing the user experience.

[0008] In some embodiments, a secondary heat exchange air conditioner includes: an air conditioner body, a refrigerant heat exchanger, a secondary heat exchange component, and a fan. The air conditioner body has an air outlet and internally defines a first air duct and a second air duct; the refrigerant heat exchanger is disposed within the first air duct; one end of the secondary heat exchange component is connected to the refrigerant heat exchanger, and the other end is provided with an indoor heat exchanger, with the portion of the secondary heat exchange component connected to the refrigerant heat exchanger located within the first air duct, and the portion with the indoor heat exchanger located within the second air duct; the fan is disposed within the second air duct and is located on one side of the indoor heat exchanger.

[0009] In some embodiments, the control method for a secondary heat exchange air conditioner includes:

[0010] Obtain the current indoor temperature and the user-set target indoor temperature;

[0011] Calculate the temperature difference between the current indoor temperature and the target indoor temperature, and determine the relationship between the temperature difference and the set temperature difference;

[0012] The heat exchange mode of the air conditioner is controlled based on the relationship between the temperature difference and the set temperature difference.

[0013] In some embodiments, a secondary heat exchange air conditioner includes a processor and a memory storing program instructions, the processor being configured to execute the control method of any of the above-described secondary heat exchange air conditioners when the program instructions are executed.

[0014] The secondary heat exchange air conditioner and its control method provided in this disclosure can achieve the following technical effects:

[0015] By installing a secondary heat exchange component within the air conditioner body, connecting one end of the secondary heat exchange component to the refrigerant heat exchanger in the first air duct, and installing an indoor heat exchanger at the other end of the secondary heat exchange component, placing the indoor heat exchanger within the second air duct, when the fan in the second air duct is activated to blow air out of the air conditioner, the airflow passes through the indoor heat exchanger of the secondary heat exchange component before being discharged into the room through the air outlet. Compared to traditional air conditioners that directly use the refrigerant heat exchanger to cool the room, where the refrigerant heat exchanger has a higher cooling capacity and can easily cause a sudden drop in the temperature of the airflow, making the airflow harsh and affecting comfort, the secondary heat exchange component acts as an intermediate buffer. This helps to moderate the cooling capacity of the refrigerant heat exchanger, effectively regulating the airflow temperature and keeping it within a suitable range. This avoids the harshness caused by a sudden drop in airflow temperature, improving the comfort of the air conditioner and enhancing the user experience.

[0016] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0018] Figure 1 This is a schematic diagram of a secondary heat exchange air conditioner provided in an embodiment of this disclosure;

[0019] Figure 2 This is a schematic diagram of the airflow regulating component provided in the embodiments of this disclosure;

[0020] Figure 3 This is a schematic diagram of another secondary heat exchange air conditioner provided in this embodiment of the disclosure;

[0021] Figure 4 This is a schematic diagram of the internal structure of the first air duct provided in an embodiment of this disclosure;

[0022] Figure 5 This is a schematic diagram of the control method for a secondary heat exchange air conditioner provided in an embodiment of this disclosure;

[0023] Figure 6 This is a schematic diagram of another secondary heat exchange air conditioner provided in an embodiment of this disclosure.

[0024] Figure label:

[0025] 100. Air conditioner body; 101. Air outlet; 102. First air duct; 103. Second air duct; 104. Air guide plate; 105. Airflow guide surface; 106. Water collection tray; 107. Water storage tank; 200. Refrigerant heat exchanger; 300. Secondary heat exchange assembly; 301. Indoor heat exchanger; 400. Fan; 500. Airflow regulating assembly; 501. Airflow inlet; 502. Switch cover; 503. First airflow inlet; 504. First switch cover; 505. Second airflow inlet; 506. Second switch cover; 600. Temperature sensor. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] Unless otherwise stated, the term "multiple" means two or more.

[0029] 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.

[0030] 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.

[0031] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0032] In this embodiment of the disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technology and network communication technology into home appliances. They have the characteristics of intelligent control, intelligent sensing and intelligent application. The operation of smart home appliances often relies on the application and processing of modern technologies such as the Internet of Things, the Internet and electronic chips. For example, smart home appliances can be connected to electronic devices to enable users to remotely control and manage smart home appliances.

[0033] In the disclosed embodiments, the terminal device refers to an electronic device with wireless connectivity. The terminal device can communicate with the aforementioned smart home appliances via the internet, or directly via Bluetooth, Wi-Fi, or other methods. In some embodiments, the terminal device may be, for example, a mobile device, a computer, or an in-vehicle device built into a hovercraft, or any combination thereof. Mobile devices may include, for example, mobile phones, smart home devices, wearable devices, smart mobile devices, virtual reality devices, or any combination thereof. Wearable devices may include, for example, smartwatches, smart bracelets, pedometers, etc.

[0034] Combination Figure 1-4 As shown, this embodiment of the present disclosure provides a secondary heat exchange air conditioner, including: an air conditioner body 100, a refrigerant heat exchanger 200, a secondary heat exchange component 300, and a fan 400. The air conditioner body 100 has an air outlet 101 and internally defines a first air duct 102 and a second air duct 103; the refrigerant heat exchanger 200 is disposed within the first air duct 102; one end of the secondary heat exchange component 300 is connected to the refrigerant heat exchanger 200, and the other end is provided with an indoor heat exchanger 301, with the portion of the secondary heat exchange component 300 connected to the refrigerant heat exchanger 200 located within the first air duct 102, and the portion with the indoor heat exchanger 301 disposed within the second air duct 103; the fan 400 is disposed within the second air duct 103 and located on one side of the indoor heat exchanger 301.

[0035] The secondary heat exchange air conditioner provided in this embodiment of the present disclosure is configured such that a secondary heat exchange component 300 is installed inside the air conditioner body 100, with one end of the secondary heat exchange component 300 connected to the refrigerant heat exchanger 200 in the first air duct 102, and an indoor heat exchanger 301 is installed at the other end of the secondary heat exchange component 300, with the indoor heat exchanger 301 located in the second air duct 103. Therefore, when the fan 400 in the second air duct 103 is activated to output air, the airflow passes through the indoor heat exchanger 301 of the secondary heat exchange component 300 before being discharged into the room through the air outlet 101. Traditional air conditioners directly use the refrigerant heat exchanger 200 to cool the room. Because the refrigerant heat exchanger 200 has a high cooling capacity, it can easily cause a sudden drop in the temperature of the air outlet, making the air outlet feel harsh and affecting the comfort of the airflow. Therefore, using the secondary heat exchange component 300 as an intermediate buffer helps to moderate the cooling capacity of the refrigerant heat exchanger 200, effectively regulating the airflow temperature and controlling the temperature of the air outlet within a suitable range. This avoids the harshness of the air outlet caused by a sudden drop in the temperature of the air outlet, improves the comfort of the air conditioner, and enhances the user experience.

[0036] Optionally, a rotatable air guide plate 104 is provided inside the air outlet 101, and the air guide plate 104 has a louvered structure. In this way, by designing the air guide plate 104 inside the air outlet 101 as a louvered structure, when the air guide plate 104 is in the open state, the louvered air outlet 101 can be opened. At this time, the louvered air guide plate 104 can not only guide the airflow entering through the louvered air outlet, but also adjust the air volume, air speed and air direction, so as to avoid the airflow blowing directly on the user, reduce the feeling of airflow, enhance the air conditioning effect and improve user comfort.

[0037] Optionally, a plurality of airflow regulating components 500 are provided between the first air duct 102 and the second air duct 103 to switch the air duct to regulate the flow direction of the airflow, so that the airflow can pass through the indoor heat exchanger 301 and then be discharged into the room through the air outlet 101, or the airflow can pass through the refrigerant heat exchanger 200 and then be discharged into the room through the air outlet 101. In this way, by setting multiple airflow regulating components 500 between the first air duct 102 and the second air duct 103 to regulate the airflow direction, when rapid cooling of the room is required, the airflow regulating components 500 can be used to switch the air duct, so that the airflow enters the first air duct 102 and passes through the refrigerant heat exchanger 200 before being discharged into the room through the air outlet 101. This can quickly reduce the indoor temperature and improve the cooling efficiency. Alternatively, to prevent the air conditioner's airflow from being too harsh, the airflow regulating components 500 can also be used to switch the air duct, so that the airflow enters the second air duct 103 and passes through the indoor heat exchanger 301 before being discharged into the room through the air outlet 101. This can avoid the situation where the airflow is too harsh due to a sudden drop in the temperature of the airflow, improve the comfort of the air conditioner's airflow, facilitate control and switching, meet the diverse air supply needs of users, and enhance the user experience.

[0038] Optionally, the airflow regulating components 500 are arranged in pairs, symmetrically positioned above and below the secondary heat exchange component 300. This makes the arrangement of the airflow regulating components 500 more rational. By using the paired airflow regulating components 500, the air outlet duct of the air conditioner can be switched more effectively. This allows the airflow to either pass through the indoor heat exchanger 301 and be discharged into the room through the air outlet 101, or pass through the refrigerant heat exchanger 200 and be discharged into the room through the air outlet 101. This makes it easier to control the direction of the airflow, diversifies the air outlet mode of the air conditioner, improves the convenience of adjusting the air outlet mode, and enhances the stability and reliability of the air duct switching process.

[0039] Optionally, the paired airflow regulating components 500 have identical structures. This identical structure allows the paired airflow regulating components 500 to have the same control method, making them easier to operate and improving ease of use. Furthermore, no structural differences need to be considered during installation, facilitating the installation of the paired airflow regulating components 500.

[0040] like Figure 2As shown, optionally, the airflow regulating component 500 includes: an airflow inlet 501 and a switch cover 502. The airflow inlet 501 is disposed between the first air duct 102 and the second air duct 103; the switch cover 502 is rotatably disposed at the airflow inlet 501 for opening or closing the airflow inlet 501. Thus, according to the user's airflow demand, the airflow path can be adjusted by controlling the opening and closing of the airflow inlet 501, changing the heat exchange form of the airflow. When rapid cooling of the room is required, the airflow inlet 501 located on the upper and lower sides of the secondary heat exchange component 300 is opened, and the switch cover 502 on the lower side of the secondary heat exchange component 300 closes the second air duct 103, allowing airflow to enter the first air duct 102 and, after passing through the refrigerant heat exchanger 200, to be discharged into the room through the air outlet 101. This can quickly lower the indoor temperature and improve cooling efficiency. When rapid cooling of the room is required, in order to prevent the air conditioner's airflow from being too harsh, all air vents 501 can be closed. The airflow will then pass through the second air duct 103, the indoor heat exchanger 301, and finally be discharged into the room through the air outlet 101. This avoids the situation where the airflow is too harsh due to a sudden drop in temperature, thus improving the comfort of the air conditioner's airflow. Furthermore, the methods for switching and controlling the opening and closing of the air vents 501 and switching the air ducts are relatively simple, making it easy to control and improve the convenience of control, thus meeting the user's needs for controlling the air conditioner's heat exchange mode.

[0041] It is worth noting that: such as Figure 3 As shown, the airflow port 501 and switch cover 502 of the airflow regulating component 500 located on the upper side of the secondary heat exchange component 300 are collectively referred to as the first airflow port 503 and the first switch cover 504, and the airflow port 501 and switch cover 502 of the airflow regulating component 500 located on the lower side of the secondary heat exchange component 300 are collectively referred to as the second airflow port 505 and the second switch cover 506.

[0042] Optionally, the secondary heat exchange air conditioner also includes a controller assembly. The controller assembly is connected to both the first switch cover 504 and the second switch cover 506, and can control the first switch cover 504 to open or close the first air inlet 503, or control the second switch cover 506 to open or close the second air inlet 505. In this way, using the controller assembly to control the opening and closing of the first switch cover 504 and the second switch cover 506 provides a simpler and more efficient control method, allowing users to control the air conditioner according to their desired outlet temperature, meeting diverse user needs, and enhancing the user experience.

[0043] Optionally, when the second switch cover 506 rotates to open the second airflow port 505 and the first switch cover 504 rotates to open the first airflow port 503, the second switch cover 506 closes the second air duct 103, and the first switch cover 504 is attached to the inner wall of the air conditioner. Thus, when switching air ducts by opening the first switch cover 504 and the second switch cover 506, by closing the second air duct 103 with the second switch cover 506, all the exhaust airflow can enter the first air duct 102, and after passing through the refrigerant heat exchanger 200, it is discharged into the room through the air outlet 101, achieving rapid cooling of the room and avoiding the situation where the exhaust airflow is discharged into the room through the second air duct 103, thus affecting the cooling effect.

[0044] Optionally, when the second switch cover 506 closes the second air duct 103, the second switch cover 506 is in an inclined state, wherein the inclination angle of the second switch cover 506 is equal to 45 degrees, and the lower end of the inclined second switch cover 506 abuts against the side wall of the second air duct 103 away from the first air duct 102, while the other end is inclined upward. In this way, the upwardly inclined second switch cover 506 can make the airflow flow more smoothly and quickly into the first air duct 102, avoid the airflow vortex phenomenon in the second air duct 103, improve the stability of the airflow, and ensure the air outlet efficiency of the air conditioner.

[0045] Understandably, when the second switch cover 506 closes the second airflow port 505 and the first switch cover 504 closes the first airflow port 503, the airflow passes through the second air duct 103, the indoor heat exchanger 301, and then through the air outlet 101 to the room. This can avoid the situation where the airflow is too pungent due to a sudden drop in temperature, and improve the comfort of the air conditioning.

[0046] Optionally, the first airflow inlet 503 corresponds to the air outlet 101. Preferably, the first airflow inlet 503 and the air outlet 101 are on the same axis. In this way, the airflow in the first air duct 102 can be directly blown to the air outlet 101 through the first airflow inlet 503, making the airflow faster and more stable, and avoiding airflow cross-flow at the air outlet 101, thereby improving the stability and efficiency of the airflow.

[0047] Optionally, the first switch cover 504 is a louvered structure, and the second switch cover 506 is a flat rectangular structure, with the area of ​​the second switch cover 506 being larger than the cross-sectional area of ​​the second air duct 103. Thus, by setting the first switch cover 504 as a louvered structure, when the first switch cover 504 is open, the first airflow opening 503 can form a louvered air vent. At this time, the louvered first switch cover 504 can both guide the airflow through the louvered air vent and adjust the air volume, airflow speed, and airflow direction, enhancing the air conditioning's output effect. The second switch cover 506, being a flat rectangular structure, with an area larger than the cross-sectional area of ​​the second air duct 103, ensures that when the second switch cover 506 rotates to open the second airflow opening 505, the second switch cover 506 can close the second air duct 103 and tilt it within the second air duct 103, allowing all and stable airflow to flow into the first air duct 102.

[0048] like Figure 3 As shown, in some other embodiments, optionally, when the second switch cover 506 rotates to open the second air passage 505 and the first switch cover 504 rotates to open the first air passage 503, the second switch cover 506 separates the second air duct 103 and is inclinedly disposed in the second air duct 103, wherein there is a set gap between the bottom of the inclined second switch cover 506 and the side wall of the second air duct 103 away from the first air duct 102. In this way, the airflow can flow from the first air duct 102 through the refrigerant heat exchanger 200 to the air outlet 101, or from the second air duct 103 through the indoor heat exchanger 301 to the air outlet 101. Thus, the two airflows can mix at the air outlet 101. Since the air temperature in the first air duct 102 is lower than the air temperature in the second air duct 103, the temperature of the airflow can be adjusted after the two airflows mix, forming a mixed airflow. This helps to control the temperature of the airflow within a suitable range, improves the comfort of the air conditioning, enhances the airflow effect, and provides users with a more comfortable living environment.

[0049] like Figure 4 As shown, optionally, an upwardly inclined guide surface 105 is provided in the first air duct 102, and the guide surface 105 is located on the lower side of the refrigerant heat exchanger 200 and corresponds to the second air inlet 505. The lower end of the upwardly inclined guide surface 105 abuts against the lower edge of the second air inlet 505. This guides the airflow entering the first air duct 102, allowing the airflow to flow smoothly and quickly upwards to the refrigerant heat exchanger 200, preventing downward flow or turbulence within the first air duct 102, and ensuring the stability of the airflow.

[0050] Optionally, a recessed water receiving tray 106 is provided at the lower end of the guide surface 105, and the water receiving tray 106 has a drain pipe connecting to the outside of the air conditioner. A water storage tank 107 is provided on the outer wall of the air conditioner body 100, and the end of the water storage tank 107 corresponding to the end of the drain pipe connecting to the outside. In this way, when the refrigerant heat exchanger 200 produces condensate, the condensate can drip onto the guide surface 105 and flow downward along the guide surface 105 into the water receiving tray 106. The condensate in the water receiving tray 106 flows into the water storage tank 107 on the air conditioner body 100 through the drain pipe, avoiding the situation where condensate drips directly into the air duct and contaminates the internal environment of the air conditioner.

[0051] Optionally, the secondary heat exchange component 300 contains a flowing medium and a pump body. The indoor heat exchanger 301 located in the second air duct 103 has a wave-shaped structure. The pump body allows the medium within the secondary heat exchange component 300 to circulate, thereby reducing or mitigating the cooling capacity of the refrigerant heat exchanger 200. This effectively regulates the airflow temperature, keeping the outlet airflow temperature within a suitable range. This avoids a sudden drop in outlet airflow temperature that could cause a harsh, icy feeling, improving the comfort of the air conditioning. The wave-shaped design of the indoor heat exchanger 301 in the second air duct 103 increases the contact area between the indoor heat exchanger 301 and the outlet airflow, resulting in better, more comprehensive, and efficient heat exchange, thus improving the overall heat exchange effect.

[0052] Optionally, the secondary heat exchange component 300 is equipped with a start / stop switch. This switch controls the opening and closing of the secondary heat exchange component 300, and when it is closed, it blocks the heat exchange between the secondary heat exchange component 300 and the refrigerant heat exchanger 200. Thus, when the airflow passes through the refrigerant heat exchanger 200 and is discharged into the room through the air outlet 101 for rapid cooling, controlling the start / stop switch to close the secondary heat exchange component 300 blocks the heat exchange between it and the refrigerant heat exchanger 200, reducing the impact of the secondary heat exchange component 300 on the cooling capacity of the refrigerant heat exchanger 200. This helps the refrigerant heat exchanger 200 quickly reduce the temperature of the outlet airflow and improves cooling efficiency.

[0053] Optionally, the medium flowing within the secondary heat exchange component 300 may include one of water, oil, and alcohol. Using one of these media within the secondary heat exchange component 300 can effectively reduce the cooling capacity of the refrigerant heat exchanger 200, helping to stabilize the outlet airflow and preventing the outlet airflow from being too harsh and affecting user comfort.

[0054] Optionally, the indoor heat exchanger 301 is horizontally arranged and covers the cross-section of the second air duct 103. This helps to increase the contact area between the indoor heat exchanger 301 and the outlet airflow, allowing the outlet airflow to flow entirely through the indoor heat exchanger 301 towards the air outlet 101, thereby achieving better heat exchange, making the heat exchange more comprehensive and efficient, and improving the heat exchange effect.

[0055] Optionally, the portion of the secondary heat exchange component 300 connected to the refrigerant heat exchanger 200 is arranged in a serpentine pattern on the refrigerant heat exchanger 200. This serpentine arrangement of the secondary heat exchange component 300 on the refrigerant heat exchanger 200 helps increase the contact area between the secondary heat exchange component 300 and the refrigerant heat exchanger 200, allowing for more comprehensive and efficient heat exchange. This effectively reduces the cooling capacity of the refrigerant heat exchanger 200, improves the comprehensiveness of heat exchange, and enhances the heat exchange effect. Consequently, the temperature of the outlet airflow is controlled within a suitable range, avoiding harsh, pungent airflow and improving the comfort of the air conditioning system.

[0056] Optionally, the portion of the secondary heat exchange component 300 that connects to the refrigerant heat exchanger 200 is attached to the refrigerant heat exchanger 200, and a heat-conducting fin is provided between the secondary heat exchange component 300 and the refrigerant heat exchanger 200. This facilitates more comprehensive and efficient heat exchange with the refrigerant heat exchanger 200, ensuring cooling performance while improving heat exchange efficiency.

[0057] Optionally, a temperature sensor 600 is installed on the secondary heat exchange air conditioner to detect the indoor temperature. By using the temperature sensor 600 to detect the indoor temperature, users can monitor the indoor temperature in real time. When the indoor temperature is significantly higher than the user's set temperature, rapid cooling is required. The airflow is controlled to pass through the refrigerant heat exchanger 200 and then exit through the air outlet 101 into the room, achieving a rapid reduction in indoor temperature. Conversely, when the indoor temperature is close to the user's set temperature, to prevent the airflow from being too harsh and affecting user comfort, the airflow can be controlled to pass through the indoor heat exchanger 301 and then exit through the air outlet 101 into the room. This allows users to adjust the temperature of the airflow based on the temperature sensor 600's readings, keeping the airflow within a suitable range and providing a more comfortable living environment.

[0058] It is worth noting that temperature sensors 600 can also be installed in the first air duct 102 and the second air duct 103. When air is discharged through the first air duct 102, the temperature sensor 600 in the first air duct 102 will detect the temperature in the first air duct 102 in real time. When air is discharged through the second air duct 103, the temperature sensor 600 in the second air duct 103 will detect the temperature in the second air duct 103 in real time. This allows the user to adjust the temperature of the discharged airflow based on the detection results of the temperature sensor 600, and control the temperature of the discharged airflow within a suitable range.

[0059] Combination Figure 5 As shown in the figure, this disclosure provides a control method for a secondary heat exchange air conditioner, characterized in that it includes:

[0060] S01, obtain the current indoor temperature and the user-set indoor target temperature;

[0061] S02, calculate the temperature difference between the current indoor temperature and the target indoor temperature, and determine the relationship between the temperature difference and the set temperature difference;

[0062] S03 controls the heat exchange mode of the air conditioner based on the relationship between the temperature difference and the set temperature difference.

[0063] The control method for a secondary heat exchange air conditioner provided in this disclosure acquires the current indoor temperature and the user-set target indoor temperature. Based on the relationship between the temperature difference between the current indoor temperature and the target indoor temperature and the set temperature difference, the air conditioner's heat exchange mode is controlled. Compared to traditional air conditioners that directly control the refrigerant heat exchanger to cool the room, the high cooling capacity of the refrigerant heat exchanger can easily cause a sudden drop in the temperature of the air outlet, making the air conditioner's airflow harsh and affecting comfort. Therefore, relying solely on the refrigerant heat exchanger for cooling the room makes the air conditioner's heat exchange method relatively simple. However, by adjusting the air conditioner's heat exchange mode according to the temperature difference, the room can be cooled quickly when the temperature difference is large, and the temperature of the air outlet can be adjusted by regulating the air outlet temperature when the indoor temperature is close to the user's set temperature. This keeps the air outlet temperature within a suitable range, improves the comfort of the air conditioner's airflow, and provides users with a more comfortable living environment.

[0064] Optionally, the heat exchange mode of the air conditioner can be controlled based on the relationship between the temperature difference and the set temperature difference, including: when the temperature difference is less than the first set temperature difference, controlling the air conditioner to operate in the first heat exchange mode. In this way, by controlling the air conditioner to operate in the first heat exchange mode, the cooling capacity of the refrigerant heat exchanger can be moderated, effectively regulating the temperature of the outlet airflow and keeping it within a suitable range. This avoids the situation where the outlet airflow becomes too harsh due to a sudden drop in temperature, improving the comfort of the air conditioner's airflow and providing users with a more comfortable living environment.

[0065] Optionally, controlling the air conditioner to operate in a first heat exchange mode includes: controlling a first switch cover to close the first airflow port and a second switch cover to close the second airflow port; ensuring that the airflow passes through the second air duct and the indoor heat exchanger to exit into the room. In this way, by closing the first and second airflow ports, the airflow can pass through the second air duct and the indoor heat exchanger before exiting into the room through the air outlet. This helps reduce the cooling capacity of the refrigerant heat exchanger and avoids a sudden drop in the temperature of the airflow, resulting in a harsh, icy feeling, thus improving the comfort of the air conditioning.

[0066] Optionally, the first set temperature difference is less than or equal to 5℃, and preferably, the first set temperature difference is 5℃. This ensures that the value of the first set temperature difference is within a reasonable range. When the temperature difference between the current indoor temperature and the target indoor temperature is less than 5℃, it indicates that the indoor temperature is low. If the refrigerant heat exchanger is used for direct cooling, it is easy to cause the airflow to be too harsh. Therefore, controlling the air conditioner to operate in the first heat exchange mode can prevent the airflow from being too harsh and affecting user comfort, thus enhancing the user experience.

[0067] Optionally, controlling the air conditioner's heat exchange mode based on the relationship between the temperature difference and the set temperature difference further includes: controlling the air conditioner to operate in a second heat exchange mode when the temperature difference is greater than the second set temperature difference. In this way, by controlling the air conditioner to operate in the second heat exchange mode and utilizing the refrigerant heat exchanger for direct cooling, the indoor temperature can be quickly reduced, improving cooling efficiency.

[0068] Optionally, controlling the air conditioner to operate in a second heat exchange mode includes: controlling a first switch cover to open a first airflow port, and a second switch cover to open a second airflow port and close a second air duct, ensuring that the airflow passes through the first air duct, the refrigerant heat exchanger, and is discharged into the room. This allows the airflow to pass through the first air duct, the refrigerant heat exchanger, and then be discharged into the room through the air outlet, rapidly reducing the indoor temperature and improving cooling efficiency.

[0069] Optionally, the second set temperature difference is greater than or equal to 10℃, and preferably, the second set temperature difference is 10℃. This ensures that the value of the second set temperature difference is within a reasonable range. When the temperature difference between the current indoor temperature and the target indoor temperature is greater than 10℃, it indicates that the indoor temperature is high. Controlling the air conditioner to operate in the second heat exchange mode can quickly cool the indoor temperature and improve the cooling efficiency.

[0070] Optionally, controlling the air conditioner's heat exchange mode based on the relationship between the temperature difference and the set temperature difference further includes: controlling the air conditioner to operate in a third heat exchange mode when the temperature difference is greater than or equal to a first set temperature difference and less than or equal to a second set temperature difference. This facilitates controlling the air conditioner's heat exchange mode based on the relationship between the temperature difference and the set temperature difference. When the air conditioner operates in the third heat exchange mode, it can quickly and efficiently cool the room. Simultaneously, during the cooling process, it avoids situations where the indoor temperature fails to reach the user's set target indoor temperature for an extended period, and also prevents excessively harsh airflow, thus improving both cooling efficiency and airflow comfort.

[0071] Optionally, controlling the air conditioner to operate in a third heat exchange mode includes: determining the temperature difference for the air conditioner to operate in the third heat exchange mode; and controlling the second switch cover to rotate at a set angle to open the second airflow port based on the temperature difference for the air conditioner to operate in the third heat exchange mode. This allows the airflow to flow either from the first duct through the refrigerant heat exchanger to the air outlet, or from the second duct through the indoor heat exchanger to the air outlet. The two airflows can then mix at the air outlet. Since the air temperature in the first duct is lower than that in the second duct, the mixing of the two airflows helps to adjust the temperature of the airflow and form a mixed airflow. This helps to control the temperature of the airflow within a suitable range, improves the comfort of the air conditioner's airflow, enhances the airflow effect, and provides users with a more comfortable living environment.

[0072] Optionally, based on the temperature difference when the air conditioner is operating in the third heat exchange mode, the second switch cover is controlled to rotate at a set angle to open the second air inlet, including:

[0073] α = at, where α is the set angle for the second switch cover to rotate and open the second air inlet, a is the adjustment coefficient, and 1 ≦ a < 9, t is the temperature difference when the air conditioner is running in the third heat exchange mode, and 5℃ ≦ t ≦ 10℃.

[0074] In this way, by determining the temperature difference when the air conditioner operates in the third heat exchange mode, and then multiplying it with the adjustment coefficient, the angle at which the second switch cover is controlled to rotate and open under that temperature difference is obtained. The set angle determined in this way is more accurate, which allows the air conditioner to operate in the third heat exchange mode more stably and reliably, and ensures the comfort of the air conditioner's air output.

[0075] It is worth noting that: taking the lowest temperature difference of 5℃ when the air conditioner is running in the third heat exchange mode, the corresponding initial rotation angle of the second switch cover is 15°, then the adjustment coefficient 'a' is 15 / 5 = 3. Substituting the adjustment coefficient into the formula, we can get α = 3t. Therefore, when the temperature difference is 6℃, the second switch cover is rotated 18°; when the temperature difference is 9℃, the second switch cover is rotated 27°.

[0076] The following is an illustrative example of the application scenario of the control method for secondary heat exchange air conditioning according to the embodiments of this disclosure.

[0077] For example, when the air conditioner is running in the third heat exchange mode, the temperature difference is t = 5°C, which means that the temperature difference between the indoor temperature and the target temperature is small. At this time, the formula can be calculated to get 3 × 5 = 15°, that is, when the temperature difference is 5°, the second switch cover is controlled to open the second air outlet by rotating 15°. This can form an air outlet pattern with the second air duct as the main outlet and the first air duct as the auxiliary outlet. That is, the air volume entering the second air duct is greater than the air volume entering the first air duct. At this time, since most of the air outlet airflow passes through the indoor heat exchanger, it can avoid the situation of the air outlet being too cold due to the sudden drop in the temperature of the air outlet airflow, thus improving the comfort of the air conditioner outlet.

[0078] If the temperature difference when the air conditioner is running in the third heat exchange mode is t = 7.5℃, then by calculation using the formula, we can get 3 × 7.5 = 22.5°. That is, when the temperature difference is 7.5℃, the second switch cover is controlled to open the second air vent by rotating 22.5°. This allows the first air duct and the second air duct to deliver air into the room with the same air volume. At this time, the air volume passing through the indoor heat exchanger and the refrigerant heat exchanger is the same, and a mixed air is formed at the air outlet, which can better neutralize the temperature of the air path and make the air outlet more comfortable.

[0079] If the temperature difference when the air conditioner is running in the third heat exchange mode is t = 10℃, it means that the temperature difference between the indoor temperature and the target temperature is large. At this time, the formula can be used to calculate 3 × 10 = 30°. That is, when the temperature difference is 10℃, the second switch cover is controlled to open the second air outlet by rotating 30°. In this way, an air outlet pattern can be formed with the first air outlet as the main outlet and the second air outlet as the auxiliary outlet. That is, the air volume entering the first air outlet is greater than the air volume entering the second air outlet. At this time, since most of the air outlet airflow passes through the refrigerant heat exchanger, it helps to quickly reduce the temperature of the air outlet airflow and achieve the purpose of quickly cooling the room.

[0080] Optionally, after controlling the air conditioner's heat exchange mode, the method further includes: obtaining the user's position relative to the air conditioner's air outlet area; and adjusting the air conditioner's heat exchange mode based on the user's position relative to the air conditioner's air outlet area. In this way, since when the user is positioned within the air conditioner's air outlet area, the airflow is likely to blow directly on the user and be quite harsh, affecting user comfort and even threatening the user's health, adjusting the air conditioner's heat exchange mode based on the user's position relative to the air conditioner's air outlet area can avoid both direct airflow on the user and excessively harsh airflow, and also helps to control the temperature of the air outlet airflow within a suitable range, improving the comfort of the air conditioner's airflow.

[0081] Understandably, the air conditioning vent area refers to the area radiated by the air conditioning vent when it blows air into the room.

[0082] Optionally, the air conditioner's heat exchange mode can be adjusted based on the user's position relative to the air conditioner's air outlet area. This includes: when the user is in the air conditioner's air outlet area, obtaining the air conditioner's current heat exchange mode; if the air conditioner's current heat exchange mode is the first heat exchange mode, maintaining the first heat exchange mode operation; and if the air conditioner's current heat exchange mode is the second heat exchange mode, switching the air conditioner to the first heat exchange mode operation. In this way, when the user is in the air conditioner's air outlet area, adjusting the air conditioner's heat exchange mode to the first heat exchange mode helps reduce the cooling capacity of the refrigerant heat exchanger, effectively regulating the temperature of the outlet airflow and controlling it within a suitable range. This avoids the situation where the outlet airflow becomes too harsh due to a sudden drop in temperature, improving the comfort of the air conditioner's airflow and providing the user with a more comfortable living environment.

[0083] Optionally, adjusting the air conditioner's heat exchange mode based on the user's position relative to the air conditioner's air outlet area further includes: when the user is not in the air conditioner's air outlet area, obtaining the air conditioner's current heat exchange mode; if the current heat exchange mode meets the indoor heat exchange requirements, maintaining the current heat exchange mode; and if the current heat exchange mode does not meet the indoor heat exchange requirements, switching the air conditioner's heat exchange mode. In this way, by switching the air conditioner's heat exchange mode, rapid cooling of the room can be achieved when there is a large temperature difference, and when the indoor temperature is close to the user's set temperature, the temperature of the air outlet can be adjusted by regulating the air conditioner's heat exchange mode, keeping the air outlet temperature within a suitable range, improving the comfort of the air conditioner's airflow, and providing users with a more comfortable living environment.

[0084] Understandably, switching the air conditioner's heat exchange mode includes switching from the first heat exchange mode to the second heat exchange mode, or vice versa. Furthermore, obtaining the user's position relative to the air conditioner's air outlet area involves detecting the user's position through image recognition. For example, a smart camera can detect that the user is located in the air conditioner's air outlet area, thus determining the user's position. The smart camera used for image recognition is installed at the air conditioner's air outlet. The smart camera can be used to perform image recognition on people around the air conditioner. The technology of using a smart camera for image recognition is well-known to those skilled in the art. Of course, infrared sensors, position detectors, etc., can also be used to detect the user's position, which will not be elaborated upon here.

[0085] Combination Figure 6As shown, this disclosure provides a secondary heat exchange air conditioner, including a processor 700 and a memory 701. Optionally, the device may further include a communication interface 702 and a bus 703. The processor 700, communication interface 702, and memory 701 can communicate with each other via the bus 703. The communication interface 702 can be used for information transmission. The processor 700 can call logical instructions in the memory 701 to execute the control method of the secondary heat exchange air conditioner described in the above embodiment.

[0086] Furthermore, the logic instructions in the aforementioned memory 701 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0087] The memory 701, 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 700 executes functional applications and data processing by running the program instructions / modules stored in the memory 701, thereby realizing the control method of the secondary heat exchange air conditioner in the above embodiments.

[0088] The memory 701 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 701 may include high-speed random access memory and may also include non-volatile memory.

[0089] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the control method for the secondary heat exchange air conditioner described above.

[0090] 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 that, when executed by a computer, cause the computer to perform the control method for the secondary heat exchange air conditioner described above.

[0091] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0092] 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 method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0093] 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 operation 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. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "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. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on 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, the relevant parts can be referred to the description of the method section.

[0094] 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.

[0095] 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 coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The 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.

[0096] 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 containing 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 that 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. 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 actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can 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 secondary heat exchange air conditioner, characterized in that, include: The air conditioner body (100) has an air outlet (101) and internally defines a first air duct (102) and a second air duct (103). A refrigerant heat exchanger (200) is installed inside the first air duct (102); A secondary heat exchange component (300) is connected at one end to the refrigerant heat exchanger (200) and at the other end to an indoor heat exchanger (301). The part of the secondary heat exchange component (300) connected to the refrigerant heat exchanger (200) is located in the first air duct (102), and the part with the indoor heat exchanger (301) is located in the second air duct (103). A fan (400) is installed in the second air duct (103) and located on one side of the indoor heat exchanger (301); Among them, a plurality of airflow regulating components (500) are provided between the first air duct (102) and the second air duct (103) for switching the airflow direction of the air duct regulating components, so that the airflow can pass through the indoor heat exchanger (301) and be discharged into the room through the air outlet (101), or the airflow can pass through the refrigerant heat exchanger (200) and be discharged into the room through the air outlet (101). The airflow regulating component (500) includes: an airflow port (501) and a switch cover plate (502). The airflow port (501) is provided between the first air duct (102) and the second air duct (103). The switch cover plate (502) is rotatably provided at the airflow port (501) for opening or closing the airflow port (501). It also includes a controller assembly, which is connected to both the first switch cover (504) and the second switch cover (506). The controller assembly is able to control the first switch cover (504) to open or close the first airflow port (503), or to control the second switch cover (506) to open or close the second airflow port (505). The airflow port (501) and the switch cover (502) of the airflow regulating assembly (500) located on the upper side of the secondary heat exchange assembly (300) are collectively referred to as the first airflow port (503) and the first switch cover (504). The airflow port (501) and the switch cover (502) of the airflow regulating assembly (500) located on the lower side of the secondary heat exchange assembly (300) are collectively referred to as the second airflow port (505) and the second switch cover (506).

2. The secondary heat exchange air conditioner according to claim 1, characterized in that, The airflow regulating components (500) are arranged in pairs, and the pairs of airflow regulating components (500) are symmetrically arranged on the upper and lower sides of the secondary heat exchange component (300).

3. The secondary heat exchange air conditioner according to claim 1, characterized in that, The secondary heat exchange assembly (300) contains a flowing medium and a pump body, wherein the indoor heat exchanger (301) located in the second air duct (103) has a wave-shaped structure.

4. The secondary heat exchange air conditioner according to claim 1, characterized in that, The portion of the secondary heat exchange component (300) connected to the refrigerant heat exchanger (200) is arranged in a serpentine pattern on the refrigerant heat exchanger (200).

5. The secondary heat exchange air conditioner according to any one of claims 1 to 4, characterized in that, The secondary heat exchange air conditioner is equipped with a temperature sensor (600), which is used to detect the indoor temperature.

6. A control method for a secondary heat exchange air conditioner, used to control the secondary heat exchange air conditioner as described in any one of claims 1 to 5, characterized in that, include: Obtain the current indoor temperature and the user-set target indoor temperature; Calculate the temperature difference between the current indoor temperature and the target indoor temperature, and determine the relationship between the temperature difference and the set temperature difference; The heat exchange mode of the air conditioner is controlled based on the relationship between the temperature difference and the set temperature difference.

7. The control method for a secondary heat exchange air conditioner according to claim 6, characterized in that, After controlling the heat exchange mode of the air conditioner, the system further includes: Obtain the user's position relative to the air conditioner's air outlet area; The air conditioner's heat exchange mode is adjusted according to the user's position relative to the air conditioner's air outlet area.

8. A secondary heat exchange air conditioner, comprising a processor (700) and a memory (701) storing program instructions, characterized in that, The processor (700) is configured to execute the control method of the secondary heat exchange air conditioner as described in any one of claims 6 to 7 when running the program instructions.

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