Method, device for controlling air conditioner and air conditioner

Abstract

The application relates to the technical field of air conditioners, and discloses a method for controlling an air conditioner, the air conditioner comprising: a casing having a first chamber and a second chamber; the first chamber is connected to the outside through an air inlet pipe and an air outlet pipe respectively, and the first chamber is also connected to the inside through a fresh air assembly; the second chamber is provided with an indoor air inlet and an indoor air outlet; a heat exchange assembly comprising an outdoor heat exchanger and an indoor heat exchanger; the outdoor heat exchanger is arranged in the first chamber, and the indoor heat exchanger is arranged in the second chamber; fresh air from the outside enters the first chamber through the air inlet pipe and exchanges heat with the outdoor heat exchanger, and the fresh air after heat exchange can enter the inside through the fresh air assembly; the method comprises the following steps: entering a fresh air mode; obtaining a first temperature difference between an outdoor temperature and a set temperature, and controlling the air conditioner to refrigerate or heat according to the first temperature difference, so that the fresh air in the first chamber approaches the set temperature and is blown into the inside from the fresh air assembly. The application also discloses a device for controlling the air conditioner and the air conditioner.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, and for example to a method, apparatus and air conditioner for controlling an air conditioner. Background Technology

[0002] Portable air conditioners differ from conventional air conditioning units that have separate indoor and outdoor units. Their evaporator and condenser are housed within a single casing. Portable air conditioners are trending towards miniaturization for ease of movement and installation. Because of their portability and ease of installation, users can easily configure and install portable air conditioners in desired locations without requiring the assistance of professional technicians.

[0003] The portable air conditioner disclosed in the related technology has an air inlet pipe and a fresh air outlet in its casing. Fresh outdoor air is introduced into the casing through the air inlet pipe, and the fresh air can enter the room through the fresh air outlet.

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

[0005] The temperature of the introduced fresh air cannot be adjusted, causing large fluctuations in indoor temperature and making it difficult to provide users with a comfortable fresh air experience.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] 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.

[0008] This disclosure provides a method, apparatus, and air conditioner for controlling an air conditioner, which solves the problem of the inability to adjust the temperature of fresh air.

[0009] In some embodiments, the method for controlling an air conditioner includes:

[0010] The air conditioner includes:

[0011] The casing has a first compartment and a second compartment; the first compartment is connected to the outside through an air inlet pipe and an air outlet pipe, and the first compartment is also connected to the inside through a fresh air assembly; the second compartment is provided with an indoor air inlet and an indoor air outlet;

[0012] The heat exchange assembly includes an outdoor heat exchanger and an indoor heat exchanger; the outdoor heat exchanger is located in the first chamber, and the indoor heat exchanger is located in the second chamber; fresh air from the outside enters the first chamber through the air inlet duct and exchanges heat with the outdoor heat exchanger, and the fresh air after heat exchange can enter the indoor chamber through the fresh air assembly.

[0013] The method includes:

[0014] Enter fresh air mode;

[0015] The system obtains the first temperature difference between the outdoor temperature and the set temperature, and controls the air conditioner to cool or heat based on the first temperature difference, so that the fresh air in the first room is blown into the room from the fresh air component after it approaches the set temperature.

[0016] In some embodiments, the apparatus for controlling an air conditioner includes a processor and a memory storing program instructions, the processor being configured to execute the method for controlling the air conditioner when the program instructions are executed.

[0017] In some embodiments, the air conditioner includes the means for controlling the air conditioner.

[0018] The method, apparatus, and air conditioner for controlling an air conditioner provided in this disclosure can achieve the following technical effects:

[0019] While introducing fresh air into the room, the temperature of the fresh air is adjusted to be close to the set temperature. This avoids large fluctuations in indoor temperature caused by the introduced fresh air, providing users with a better fresh air and room temperature experience.

[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0021] 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:

[0022] Figure 1 This is a cross-sectional schematic diagram of a portable air conditioner provided in an embodiment of this disclosure;

[0023] Figure 2 This is an exploded view of a portable air conditioner provided in an embodiment of this disclosure;

[0024] Figure 3 This is a schematic diagram of the structure of the duct connector provided in the embodiments of this disclosure;

[0025] Figure 4 This is a schematic diagram of the structure of the fresh air valve provided in an embodiment of this disclosure;

[0026] Figure 5 This is a schematic diagram of the chassis structure provided in an embodiment of this disclosure;

[0027] Figure 6 This is a schematic diagram of the structure of the first pipeline provided in an embodiment of this disclosure;

[0028] Figure 7 This is a schematic diagram of the structure of the second pipeline provided in an embodiment of this disclosure;

[0029] Figure 8 This is a method for controlling an air conditioner provided in the embodiments of this disclosure;

[0030] Figure 9 This is another method for controlling an air conditioner provided in this embodiment of the disclosure;

[0031] Figure 10 This is another method for controlling an air conditioner provided in this embodiment of the disclosure;

[0032] Figure 11 This is another method for controlling an air conditioner provided in this embodiment of the disclosure;

[0033] Figure 12 This is another method for controlling an air conditioner provided in this embodiment of the disclosure;

[0034] Figure 13 This is another method for controlling an air conditioner provided in this embodiment of the disclosure;

[0035] Figure 14 This is another method for controlling an air conditioner provided in this embodiment of the disclosure;

[0036] Figure 15 This is a device for controlling an air conditioner provided in the embodiments of this disclosure.

[0037] Figure label:

[0038] 100: Casing; 101: First compartment; 102: Second compartment; 103: Outdoor air inlet; 104: Outdoor air outlet; 105: Indoor air inlet; 106: Indoor air outlet; 110: Air inlet duct; 111: Air outlet duct; 120: Outdoor heat exchanger; 121: Indoor heat exchanger;

[0039] 200: Duct connector; 201: First interface; 202: Second interface; 203: Third interface; 204: Fourth interface; 210: Fresh air outlet; 220: Fresh air valve;

[0040] 300: Chassis; 301: Water pumping area; 302: Water purification area; 310: Central partition; 311: Water collection area; 320: Water pump; 321: First pipeline; 322: Second pipeline; 330: Sprinkler pipe; 340: Water impeller;

[0041] 400: Processor; 401: Memory; 402: Communication interface; 403: Bus. Detailed Implementation

[0042] 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.

[0043] 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.

[0044] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0045] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0046] Unless otherwise stated, the term "multiple" means two or more.

[0047] 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.

[0048] 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.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0050] Combination Figure 1-7 As shown, this disclosure provides a portable air conditioner, including a housing 100, a heat exchange assembly, a fan assembly, and a fresh air assembly. Figure 1 As shown, the interior of the casing 100 is divided into a first compartment 101 and a second compartment 102 by a central partition 310, with the second compartment 102 located above the first compartment 101. Figure 2 As shown, the first room 101 is equipped with an outdoor air inlet 103 and an outdoor air outlet 104, and the second room 102 is equipped with an indoor air inlet 105 and an indoor air outlet 106. Figure 3 As shown, the fresh air assembly includes a duct connector 200, which has a first passage with a first interface 201 and a second interface 202 at its two ends. The first interface 201 is connected to an outdoor air outlet 104, and the second interface 202 is connected to an air outlet duct 111. A fresh air outlet 210 is provided on the side wall of the first passage, and the fresh air outlet 210 is equipped with a fresh air valve 220 or a fresh air grille. Optionally, the duct connector 200 also has a second passage with a third interface 203 and a fourth interface 204 at its two ends. The third interface 203 is connected to an outdoor air inlet 103, and the fourth interface 204 is connected to an air inlet duct 110. The heat exchange assembly includes an outdoor heat exchanger 120 and an indoor heat exchanger 121. The outdoor heat exchanger 120 is located in a first chamber 101, and the indoor heat exchanger 121 is located in a second chamber 102. The fan assembly includes an outdoor fan and an indoor fan. The outdoor fan is located in the first chamber 101, and the indoor fan is located in the second chamber 102. Under the action of the indoor fan, indoor air enters the second chamber 102 through the indoor air inlet 105, exchanges heat with the indoor heat exchanger 121, and then leaves the second chamber 102 through the indoor air outlet 106. Under the action of the outdoor fan, fresh outdoor air enters the first chamber 101 through the outdoor air inlet 103 via the air inlet duct 110, exchanges heat with the outdoor heat exchanger 120, and then leaves the first chamber 101 through the outdoor air outlet 104 via the air outlet duct 111. Furthermore, in fresh air mode, the heat-exchanged fresh air can enter the room through the fresh air outlet 210.

[0051] The refrigerant circulation system of a portable air conditioner consists of at least a compressor, an outdoor heat exchanger 120, a throttling device, and an indoor heat exchanger 121. In cooling mode, the refrigerant circulation system flows as follows: compressor, outdoor heat exchanger 120, throttling device, indoor heat exchanger 121, and compressor again, where the outdoor heat exchanger 120 acts as a condenser and the indoor heat exchanger 121 acts as an evaporator. In heating mode, the refrigerant circulation system flows as follows: compressor, indoor heat exchanger 121, throttling device, outdoor heat exchanger 120, and compressor again, where the outdoor heat exchanger 120 acts as an evaporator and the indoor heat exchanger 121 acts as a condenser.

[0052] like Figure 5 As shown, the portable air conditioner also includes a chassis 300, a water pump 320, and a spray pipe 330. The bottom of the first compartment 101, i.e., the chassis 300 of the casing 100, is provided with a water pumping area 301 and a water purification area 302. The water pumping area 301 is located below the outdoor heat exchanger 120, and is connected to the water purification area 302 through a filter device. Figure 6 As shown, the inlet of the water pump 320 is connected to the clean water area 302, and its outlet is connected to the spray pipe 330 through the first pipe 321. The spray pipe 330 is installed in the second chamber 102 and is used to spray water onto the indoor heat exchanger 121. A water collection area 311 is provided on the partition plate 310, and the condensate from the indoor heat exchanger 121 drips onto the partition plate 310 and collects in the water collection area 311. The water collection area 311 has a drain hole located above the outdoor heat exchanger 120, allowing the condensate in the water collection area 311 to flow to the outdoor heat exchanger 120 through the drain hole. Figure 7 As shown, the outlet of the water pump 320 is also connected to the water collection area 311 via a second pipe 322, thereby supplying condensate from the clean water area 302 to the water collection area 311. Furthermore, the first pipe 321 is equipped with a first flow valve, and the second pipe 322 is equipped with a second flow valve. Thus, the flow rate of the first pipe 321 is adjusted by the first flow valve, and the flow rate of the second pipe 322 is adjusted by the second flow valve.

[0053] The portable air conditioner also includes a water pumping assembly. The water pumping assembly is located inside the casing 100 and includes a water pumping wheel 340 and a water pumping motor. The water pumping wheel 340 is located in the water pumping area 301, and the drive shaft of the water pumping motor is connected to the water pumping wheel 340 to drive the water pumping wheel 340 to rotate, thereby throwing the condensate in the water pumping area 301 toward the outdoor heat exchanger 120.

[0054] like Figure 8 As shown, this disclosure provides a method for controlling an air conditioner, including:

[0055] S10: Enter fresh air mode;

[0056] S11: Obtain the first temperature difference between the outdoor temperature and the set temperature, and control the air conditioner to cool or heat according to the first temperature difference, so that the fresh air in the first room 101 is close to the set temperature and then blown into the room from the fresh air component.

[0057] In this embodiment, while introducing fresh air into the room, the temperature of the fresh air is adjusted to bring it close to the set temperature. This avoids large fluctuations in indoor temperature caused by the introduced fresh air, providing users with a better fresh air and room temperature experience.

[0058] Optionally, step S11, controlling the air conditioner to cool or heat based on the first temperature difference, includes:

[0059] When the outdoor temperature is higher than the set temperature, the air conditioner is switched to heating mode.

[0060] When the outdoor temperature is lower than the set temperature, the air conditioner is controlled to cool.

[0061] In this embodiment, unlike conventional indoor temperature regulation (when outdoor temperature > set temperature, the air conditioner generally cools, such as in summer; when outdoor temperature < set temperature, the air conditioner generally heats, such as in winter), the air conditioner's cooling or heating mode is reversed when adjusting the temperature of the fresh air.

[0062] For example, the outdoor temperature is 35°C, and the user's set temperature is 20°C. In fresh air mode, the air conditioner heats and introduces fresh air. When the air conditioner is heating, the outdoor heat exchanger 120 acts as an evaporator. After the outdoor fresh air enters the first room 101, it exchanges heat with the outdoor heat exchanger 120, thereby reducing the temperature of the fresh air. Then, the cooled fresh air is blown into the room from the fresh air outlet 210.

[0063] In another example, the outdoor temperature is 10°C, and the user's set temperature is 25°C. In fresh air mode, the air conditioner cools and introduces fresh air. When the air conditioner is cooling, the outdoor heat exchanger 120 acts as a condenser. After the outdoor fresh air enters the first room 101, it exchanges heat with the outdoor heat exchanger 120, thereby increasing the temperature of the fresh air. Then, the warmer fresh air is blown into the room from the fresh air outlet 210.

[0064] Optionally, when the air conditioner is cooling or heating, the operating frequency of the compressor is controlled based on a first temperature difference. Controlling the compressor's operating frequency based on the first temperature difference includes:

[0065] When the first temperature difference is less than the first threshold, the compressor is controlled to operate at the first frequency;

[0066] When the first threshold ≤ the first temperature difference < the second threshold, control the compressor to operate at the second frequency;

[0067] When the first temperature difference is greater than or equal to the second threshold, the compressor is controlled to operate at the third frequency;

[0068] Among them, the first frequency < the second frequency < the third frequency.

[0069] In this embodiment, energy can be effectively saved by controlling the compressor's operating frequency in fresh air mode. Optionally, the first threshold is 3°C, and the second threshold is 10°C.

[0070] For example, the outdoor temperature is 35°C, and the user's set temperature is 20°C. In fresh air mode, the air conditioner heats and introduces fresh air. At this time, the first temperature difference is 15°C. Because the first temperature difference is relatively large, in order to make the temperature of the fresh air approach the set temperature more quickly, the compressor operates at a third frequency.

[0071] For another example, the outdoor temperature is 25°C, and the user's set temperature is 23°C. In fresh air mode, the air conditioner cools and introduces fresh air. At this time, the initial temperature difference is 2°C. Because the initial temperature difference is small, the compressor operates at a high frequency, making the temperature of the fresh air close to the set temperature while effectively saving energy.

[0072] Optionally, when the compressor is operating at a second or third frequency, the water pump 320 is controlled to supply water to the sprinkler pipe through the first pipeline 321.

[0073] In this embodiment, when the water pump 320 starts and the first flow valve is open, the water pump 320 supplies condensate from the clean water zone 302 to the spray pipe 330. When the compressor operates at a higher frequency (either the second or third frequency) and the indoor fan is off, to meet the heat exchange requirements of the indoor heat exchanger 121, the water pump 320 is controlled to supply water to the spray pipe, and the spray pipe 330 sprays condensate onto the indoor heat exchanger 121. The condensate on the surface of the indoor heat exchanger 121 drips and collects in the water collection area 311 of the partition 310, then flows through the drain hole to the outdoor heat exchanger 120 for further heat exchange, and finally collects back into the clean water zone 302, thus forming the first condensate circulation loop. In this way, in fresh air mode, the first condensate circulation loop is used for heat exchange with the indoor heat exchanger 121, thereby ensuring the normal operation of the refrigerant circulation system.

[0074] Furthermore, optionally, when the compressor is operating at a third frequency, the water pump 320 is controlled to supply water to the water collection area 311 through the second pipeline 322.

[0075] In this embodiment, the compressor operates at a third frequency, which is relatively high. With the continuous operation of the first condensate circulation loop, the water temperature in the clean water zone 302 is insufficient to meet the heat exchange requirements of the indoor heat exchanger 121. To address this issue, the water temperature of the clean water zone 302 is obtained. When the water temperature does not meet the requirements, the water pump 320 is controlled to supply water to the collection zone 311 through the second pipeline 322. The condensate in the collection zone 311 flows through the drain hole to the outdoor heat exchanger 120 for heat exchange, and finally re-collects back into the clean water zone 302, thus forming the second condensate circulation loop. Here, when the water temperature in the clean water zone 302 does not meet the requirements, the first condensate circulation loop is blocked and the second condensate circulation loop is open; when the water temperature in the clean water zone 302 meets the requirements, the first condensate circulation loop is open and the second condensate circulation loop is blocked. In this fresh air mode, the second condensate circulation loop is used to exchange heat with the outdoor heat exchanger 120, thereby quickly bringing the water temperature in the clean water zone 302 to meet the heat exchange requirements of the indoor heat exchanger 121.

[0076] For example, the outdoor temperature is 35℃, and the user's set temperature is 20℃. In fresh air mode, the air conditioner heats and introduces fresh air, with the indoor heat exchanger 121 acting as a condenser and the outdoor heat exchanger 120 acting as an evaporator. At this time, the first temperature difference is 15℃, and the compressor operates at the third frequency. When the water temperature in the purified water zone 302 is high, resulting in poor heat exchange between the first condensate circulation loop and the indoor heat exchanger 121, the first pipe 321 is blocked and the second pipe 322 is opened. Thus, under the action of the second condensate circulation loop, the condensate in the purified water zone 302 quickly exchanges heat with the outdoor heat exchanger 120, thereby rapidly reducing the water temperature in the purified water zone 302. When the water temperature in the purified water zone 302 drops to meet the water temperature requirement, the first pipe 321 is opened and the second pipe 322 is blocked. Thus, under the action of the first condensate circulation loop, heat exchange between the condensate and the indoor heat exchanger 121 continues.

[0077] In some embodiments, the second room 102 is equipped with an indoor fan. Step S10, entering the fresh air mode, includes:

[0078] Control the indoor fan to stop.

[0079] In this embodiment, when the air conditioner is running in fresh air mode, in order to avoid large fluctuations in indoor temperature caused by the indoor heat exchanger 121, the indoor fan is controlled to stop.

[0080] Optionally, such as Figure 9 As shown, the air conditioner is cooling or heating before entering the fresh air mode; step S10, entering the fresh air mode, includes:

[0081] S101: Controls the air conditioner to pause its current cooling or heating function;

[0082] S102: Controls the indoor fan to stop running immediately after the first operation.

[0083] In this embodiment, if the air conditioner is cooling or heating before entering the fresh air mode, the current cooling or heating is paused. Then, the indoor fan is controlled to run for a short time to blow the residual heat from the second room 102 into the room, ensuring the current cooling or heating effect. Optionally, after the indoor fan has run for a short time, the air guide plate at the indoor air outlet 106 is closed to reduce the fluctuation of indoor temperature after entering the fresh air mode.

[0084] For example, the outdoor temperature is 35°C, and the user's set temperature is 20°C. Before operating the fresh air mode, the air conditioner is cooling. When the user activates the fresh air mode, the air conditioner pauses its current cooling operation; then, the indoor fan is activated to blow the residual cool air from the second room 102 into the room. Next, the air conditioner is activated to heat, with the outdoor heat exchanger 120 acting as an evaporator. Fresh air from outside enters the first room 101 and exchanges heat with the outdoor heat exchanger 120, thereby lowering the temperature of the fresh air. The cooled fresh air is then blown into the room from the fresh air outlet 210.

[0085] like Figure 10 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0086] S14: The air conditioner is cooling or heating;

[0087] S15: Control the air conditioner to pause its current cooling or heating function;

[0088] S10: Enter fresh air mode;

[0089] S11: Obtain the first temperature difference between the outdoor temperature and the set temperature, and control the air conditioner to cool or heat according to the first temperature difference;

[0090] S12: Exit fresh air mode;

[0091] S13: Controls the air conditioner to resume cooling or heating before entering fresh air mode.

[0092] In this embodiment, the indoor temperature fluctuates in fresh air mode. Therefore, after exiting fresh air mode, the air conditioner resumes cooling or heating as it did before entering fresh air mode, thus ensuring that the indoor temperature meets the user's set temperature.

[0093] For example, the outdoor temperature is 35°C, and the user's set temperature is 20°C. Before operating the fresh air mode, the air conditioner is cooling. When the user activates the fresh air mode, the air conditioner pauses its current cooling operation; then, it switches to heating mode. The outdoor heat exchanger 120 acts as an evaporator, and fresh outdoor air enters the first room 101 and exchanges heat with the outdoor heat exchanger 120, thereby lowering the temperature of the fresh air. The cooled fresh air is then blown into the room from the fresh air outlet 210. After the user selects to exit the fresh air mode, the air conditioner resumes the cooling operation it was in before entering the fresh air mode.

[0094] like Figure 11 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0095] S10: Enter fresh air mode;

[0096] S11: Obtain the first temperature difference between the outdoor temperature and the set temperature, and control the air conditioner to cool or heat according to the first temperature difference;

[0097] S16: Obtain the second temperature difference between the temperature of the fresh air after heat exchange in the first room 101 and the set temperature, and control the flip angle of the fresh air valve 220 according to the second temperature difference.

[0098] In this embodiment, as Figure 4 As shown, the fresh air valve 220 is located at the fresh air outlet 210. Driven by a motor, one side of the valve can rotate around the other side towards the inside of the fresh air outlet 210. The rotation angle 'a' of the fresh air valve 220 can be adjusted by the motor to block the fresh air outlet 210 (a = 0°), while avoiding the fresh air outlet 210 and the first passage (rotation angle 0° < a < 90°), or to block the first passage (a = 90°).

[0099] In fresh air mode, when the second temperature difference is within the preset temperature range, the fresh air valve 220 is controlled to flip to a position that simultaneously avoids the fresh air outlet 210 and the first passage, so that the fresh air after heat exchange in the first room 101 flows simultaneously from the fresh air outlet 210 and the air outlet duct 111. Furthermore, the closer to the lower limit of the preset temperature range, the larger the value of 'a', and the greater the airflow from the fresh air outlet 210. When the second temperature difference is greater than the upper limit of the preset temperature range, the fresh air valve 220 is controlled to block the fresh air outlet 210. When the second temperature difference is less than the lower limit of the preset temperature range, the fresh air valve 220 is controlled to block the first passage, maximizing the airflow from the fresh air outlet 210. The preset temperature range can be selected as 2℃-6℃. This facilitates the introduction of fresh air closer to the set temperature into the room, effectively reducing the impact of fresh air on the indoor temperature.

[0100] The outdoor heat exchanger 120 of a portable air conditioner may overheat under certain operating conditions. For example, when the outdoor temperature is lower than the set temperature, the user turns on the fresh air mode, the air conditioner cools and introduces fresh air, and the outdoor heat exchanger 120 acts as a condenser. In fresh air mode, since the indoor fan is off, if the indoor heat exchanger 121 does not receive effective heat exchange, it may affect the outdoor heat exchanger 120 and cause it to overheat.

[0101] like Figure 12 As shown, based on the overheating problem of the outdoor heat exchanger 120, this disclosure also provides a method for controlling an air conditioner, including:

[0102] S20: Determine the overheating state based on the temperature of the outdoor heat exchanger 120;

[0103] S21: Control the status of the water pump motor and outdoor fan according to the overheating condition.

[0104] In this embodiment, the overheating state of the outdoor heat exchanger 120 is adjusted by controlling the state of the water pump motor and the outdoor fan.

[0105] Optionally, step S20, determining the superheat state based on the temperature of the outdoor heat exchanger 120, includes:

[0106] The duration of high temperature is obtained when the temperature of the outdoor heat exchanger 120 exceeds the upper temperature limit.

[0107] If the duration of high temperature is less than the set duration, the outdoor heat exchanger 120 is judged to be in the first stage of overheating; if the duration of high temperature is greater than or equal to the set duration, the outdoor heat exchanger 120 is judged to be in the second stage of overheating.

[0108] In this embodiment, the overheating state is divided into primary overheating and secondary overheating based on the duration of high temperature in the outdoor heat exchanger 120.

[0109] Optionally, step S21, as Figure 13 As shown, the status of the water pump motor and outdoor fan is controlled according to the overheating state, including:

[0110] S211: When the outdoor heat exchanger 120 is in the first stage of superheat, control the water pump motor to start and the outdoor fan to run at the first speed.

[0111] S212: After the first duration, control the water pump motor to stop, and the outdoor fan to run at a second speed, which is less than the first speed;

[0112] S213: After the first duration, the overheating state is re-determined.

[0113] In this embodiment, under the condition of primary overheating, the water pump motor and the outdoor fan start simultaneously, exchanging heat with the outdoor heat exchanger 120 through condensate and outdoor fresh air. After the first period, the overheating of the outdoor heat exchanger 120 is alleviated. At this time, the water pump motor stops and the outdoor fan runs at a lower second speed, exchanging heat only through outdoor fresh air and the outdoor heat exchanger 120, thus achieving energy saving.

[0114] Optionally, step S21, as Figure 14 As shown, controlling the status of the water pump motor and outdoor fan based on the overheating state also includes:

[0115] S214: When the outdoor heat exchanger 120 is in the secondary superheat state, control the water pump motor to start and the outdoor fan to run at the first speed.

[0116] S215: After the second duration, the overheating state is reassessed.

[0117] In this embodiment, the second duration is greater than or equal to the first duration.

[0118] Optionally, step S20, determining the superheated state based on the temperature of the outdoor heat exchanger 120, further includes:

[0119] If the temperature of the outdoor heat exchanger 120 is lower than the upper temperature limit, it is determined that the outdoor heat exchanger 120 is not overheating.

[0120] In this embodiment, when the outdoor heat exchanger 120 is not overheated, the water pump motor is stopped and the outdoor fan runs at the second speed.

[0121] For example, the outdoor heat exchanger 120 is in a two-stage superheat state. At this time, the water pump motor is started and the outdoor fan runs at the first speed. After a second period of time, the superheat state is redefined as a first-stage superheat state. At this time, the water pump motor is started and the outdoor fan runs at the first speed. After a first period of time, the water pump motor is stopped and the outdoor fan runs at the second speed. After another first period of time, the superheat state is redefined as no superheat state. At this time, the water pump motor is stopped and the outdoor fan runs at the second speed.

[0122] Optionally, the water pumping area 301 is equipped with a drainage pump; before the water pumping motor is started, the following steps are taken: the water level of the water pumping area 301 is obtained; and then, the state of the drainage pump is controlled according to the water level.

[0123] In this embodiment, when the water level is higher than the upper limit, the condensate in the water pumping zone 301 may splash onto surrounding electrical components when the pumping motor starts, posing a safety hazard. Therefore, when the water level in the water pumping zone 301 is greater than or equal to the upper limit, the drain pump is started. When the water level in the water pumping zone 301 is lower than the upper limit, the drain pump is stopped, and then the pumping motor is started.

[0124] Combination Figure 15 As shown, this disclosure provides an apparatus for controlling an air conditioner, including a processor 400 and a memory 401. Optionally, the apparatus may further include a communication interface 402 and a bus 403. The processor 400, communication interface 402, and memory 401 can communicate with each other via the bus 403. The communication interface 402 can be used for information transmission. The processor 400 can call logical instructions in the memory 401 to execute the method for controlling the air conditioner described in the above embodiment.

[0125] Furthermore, the logic instructions in the aforementioned memory 401 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0126] The memory 401, 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 400 executes functional applications and data processing by running the program instructions / modules stored in the memory 401, that is, it implements the method for controlling the air conditioner in the above embodiments.

[0127] The memory 401 may include a program storage area and a data storage area. The program storage area may store the operating system and applications 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 401 may include high-speed random access memory and may also include non-volatile memory.

[0128] This disclosure provides an air conditioner that includes the above-described device for controlling the air conditioner.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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 method for controlling an air conditioner, characterized in that, The air conditioner includes: The casing has a first compartment and a second compartment located above it; the first compartment is connected to the outside through an air inlet pipe and an air outlet pipe, and the first compartment is also connected to the inside through a fresh air assembly; the second compartment is provided with an indoor air inlet and an indoor air outlet; The heat exchange assembly includes an outdoor heat exchanger and an indoor heat exchanger; the outdoor heat exchanger is located in the first chamber and the indoor heat exchanger is located in the second chamber; fresh air from the outside enters the first chamber through the air inlet duct and exchanges heat with the outdoor heat exchanger, and the fresh air after heat exchange can enter the room through the fresh air assembly; a water collection area is provided below the indoor heat exchanger, and the water collection area is provided with a drain hole facing the outdoor heat exchanger. The base plate of the unit casing has a water spraying area and a water purification area, and the water purification area is connected to the water spraying area through a filter device. The air conditioner also includes a spray pipe and a water pump. The spray pipe is used to spray water onto the indoor heat exchanger. The water inlet of the water pump is connected to the water purification area, and the water outlet of the water pump is connected to the spray pipe through a first pipe and also to the water collection area through a second pipe. The condensate on the surface of the indoor heat exchanger drips and collects in the water collection area, then flows to the outdoor heat exchanger through the drain hole for heat exchange again, and finally collects back into the water purification area, thus forming the first condensate circulation loop. The water pump supplies water to the water collection area through the second pipe. The condensate in the water collection area flows to the outdoor heat exchanger through the drain hole for heat exchange, and finally collects back into the water purification area, thus forming the second condensate circulation loop. When the water temperature in the purification zone does not meet the water temperature requirement, the first condensate circulation loop is blocked and the second condensate circulation loop is opened; when the water temperature in the purification zone meets the water temperature requirement, the first condensate circulation loop is opened and the second condensate circulation loop is blocked, and the water pump can then be used to send water from the purification zone into the spray pipe, thereby spraying water onto the indoor heat exchanger. The method includes: Enter fresh air mode; The system obtains the first temperature difference between the outdoor temperature and the set temperature, and controls the air conditioner to cool or heat based on the first temperature difference, so that the fresh air in the first room is blown into the room from the fresh air component after it approaches the set temperature.

2. The method according to claim 1, characterized in that, The method of controlling the air conditioner to cool or heat based on the first temperature difference includes: When the outdoor temperature is higher than the set temperature, the air conditioner is switched to heating mode. When the outdoor temperature is lower than the set temperature, the air conditioner is controlled to cool.

3. The method according to claim 2, characterized in that, When the air conditioner is cooling or heating, the operating frequency of the compressor is controlled according to the first temperature difference.

4. The method according to claim 3, characterized in that, The method of controlling the compressor's operating frequency based on the first temperature difference includes: When the first temperature difference is less than the first threshold, the compressor is controlled to operate at the first frequency; When the first threshold ≤ the first temperature difference < the second threshold, control the compressor to operate at the second frequency; When the first temperature difference is greater than or equal to the second threshold, the compressor is controlled to operate at the third frequency; Among them, the first frequency < the second frequency < the third frequency.

5. The method according to claim 4, characterized in that, When the compressor is running at the second or third frequency, control the water pump to supply water to the spray pipe.

6. The method according to any one of claims 1 to 5, characterized in that, The second room is equipped with an indoor fan; Entering the fresh air mode includes: Control the indoor fan to stop.

7. The method according to claim 6, characterized in that, Before entering the fresh air mode, the air conditioner is either cooling or heating. Entering the fresh air mode includes: Control the air conditioner to pause its current cooling or heating function; The indoor fan will stop running immediately after the initial operation.

8. The method according to claim 7, characterized in that, After controlling the air conditioner to cool or heat according to the first temperature difference, the following steps are included: Exit fresh air mode; Control the air conditioner to resume cooling or heating as it was before entering fresh air mode.

9. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to, when executing the program instructions, perform the method for controlling an air conditioner as described in any one of claims 1 to 8.

10. An air conditioner, characterized in that, Includes the device for controlling an air conditioner as described in claim 9.

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