Method, device, air conditioner and storage medium for controlling waste heat blowing of air conditioner

Abstract

The present application relates to the technical field of smart home appliances, and discloses a method for controlling the blowing of residual heat by an air conditioner, comprising: determining the target object to be blown with residual heat according to the operating state of the air conditioner; determining the blowing scheme for the residual heat of the target object according to the operating pressure of the air conditioner; and controlling the target object to operate according to the determined blowing scheme. The method first determines whether the target object to be blown with residual heat is the indoor unit or the outdoor unit based on the operating state of the air conditioner. Then, the blowing scheme for the target object is determined based on the operating pressure of the air conditioner. In this way, the blowing scheme for the target object suitable for the target object is directly matched by pressure in combination with the operating pressure of the air conditioner. This allows the pressure of the air conditioning system to be quickly balanced, thereby improving the stability of the air conditioning system. The present application also discloses a device for controlling the blowing of residual heat by an air conditioner, an air conditioner, and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a method, device, air conditioner and storage medium for controlling waste heat blowing of an air conditioner. Background Art

[0002] After the air conditioner stops running, the coil still retains residual heat. Therefore, the air conditioner needs to run the residual heat function to stabilize the system load.

[0003] The related art discloses a method for controlling waste heat blowing, which specifically includes the following steps: a. after the compressor stops running in the heating state, the indoor unit fan is kept running to blow waste heat to the indoor unit coil; b. the indoor unit coil temperature T and waste heat blowing time t are collected; c. when the indoor coil temperature T is greater than or equal to a first temperature threshold T1, the indoor unit fan is controlled to run at a low wind speed, and the angle of the indoor damper blade is kept at the angle θ of the damper blade when the compressor stops running; d. when the indoor coil temperature T is less than the first temperature threshold T1 or the waste heat blowing time t is greater than or equal to the first time When the threshold value t1 is reached, the indoor unit fan is controlled to operate at a breeze speed, and the angle of the indoor unit damper blade is adjusted to θ1; e. When the indoor coil temperature T is less than the second temperature threshold value T2 or the residual heat blowing time t is greater than or equal to the second time threshold value t2, the indoor unit fan is stopped, and the angle of the indoor unit damper blade is adjusted according to the current indoor unit state: if the current indoor unit is in the on state, the angle of the indoor unit damper blade is adjusted to θ2; if the current indoor unit is in the off state, the indoor unit damper blade is adjusted to be directly closed; T1>T2, t1<t2, θ>θ1>θ2.

[0004] In the aforementioned control method, the fan speed is determined based on the coil temperature. Other related art methods determine fan speed based on parameters such as frequency and speed. However, these parameters indirectly represent the air conditioner's waste heat removal process. When controlling fan speed based on these parameters, errors are prone to occur, affecting the stability of the air conditioning system. Summary of the Invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] Embodiments of the present disclosure provide a method, device, air conditioner, and storage medium for controlling waste heat blowing from an air conditioner, so as to improve the stability of an air conditioning system.

[0007] In some embodiments, the method includes: determining a target object to be blown with residual heat according to the operating state of the air conditioner; determining a residual heat blowing scheme for the target object according to the operating pressure of the air conditioner; and controlling the target object to operate according to the determined residual heat blowing scheme.

[0008] In some embodiments, the apparatus includes: a processor and a memory storing program instructions, wherein the processor is configured to execute the aforementioned method for controlling the air conditioner to blow away residual heat when running the program instructions.

[0009] In some embodiments, the air conditioner includes the aforementioned device for controlling the air conditioner to blow away waste heat.

[0010] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the aforementioned method for controlling the air conditioner to blow away residual heat is executed.

[0011] The method, device, air conditioner, and storage medium for controlling air conditioner waste heat blowing provided by the embodiments of the present disclosure can achieve the following technical effects:

[0012] First, the air conditioner's operating status is used to determine whether the indoor or outdoor unit is the target for residual heat blowing. Then, the air conditioner's operating pressure is used to determine the appropriate residual heat blowing solution for the target unit. This approach, combined with the air conditioner's operating pressure, directly matches the appropriate residual heat blowing solution to the target unit. This allows for rapid pressure balance in the air conditioning system, thereby improving system stability.

[0013] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0015] Figure 1 is a schematic diagram of a method for controlling waste heat blowing from an air conditioner provided by an embodiment of the present disclosure;

[0016] Figure 2 is a schematic diagram of another method for controlling waste heat blowing from an air conditioner provided by an embodiment of the present disclosure;

[0017] Figure 3 is a schematic diagram of another method for controlling waste heat blowing from an air conditioner provided by an embodiment of the present disclosure;

[0018] Figure 4 is a schematic diagram of another method for controlling waste heat blowing from an air conditioner provided by an embodiment of the present disclosure;

[0019] Figure 5 is a schematic diagram of another method for controlling waste heat blowing from an air conditioner provided by an embodiment of the present disclosure;

[0020] Figure 6 This is an application diagram provided by an embodiment of the present disclosure;

[0021] Figure 7 is a schematic diagram of a device for controlling waste heat blowing from an air conditioner provided by an embodiment of the present disclosure;

[0022] Figure 8 It is a schematic diagram of another device for controlling the waste heat of an air conditioner provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0024] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0025] Unless otherwise stated, the term "plurality" means two or more.

[0026] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0027] 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.

[0028] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0029] Combine Figure 1 As shown, an embodiment of the present disclosure provides a method for controlling the waste heat of an air conditioner, comprising:

[0030] S101: The processor determines a target object to which residual heat is to be blown according to the operating status of the air conditioner.

[0031] S102: The processor determines a waste heat blowing solution for the target object according to the operating pressure of the air conditioner.

[0032] S103: The processor controls the target object to operate according to the determined waste heat blowing plan.

[0033] Obtain the operating status of the air conditioner. The operating status of the air conditioner may include the operating mode and the start / stop status of the compressor. The start / stop status of the compressor can indicate whether the air conditioner is in the residual heat blowing mode. The operating mode of the air conditioner can further indicate the object requiring the residual heat blowing. Therefore, the target object to be blown with the residual heat is determined based on the operating status of the air conditioner. Here, the target object can be an indoor unit or an outdoor unit. Obtain the operating pressure of the air conditioner. Based on the operating pressure of the air conditioner, determine the residual heat blowing scheme for the target object. Finally, control the target object to operate according to the determined residual heat blowing scheme. When the air conditioner is in the residual heat blowing mode, the fan corresponding to the target object continues to operate.

[0034] In the disclosed embodiment, the target unit for residual heat blowing, either the indoor unit or the outdoor unit, is first determined based on the air conditioner's operating status. A residual heat blowing solution for the target unit is then determined based on the air conditioner's operating pressure. This allows for a direct matching of the residual heat blowing solution to the target unit based on the air conditioner's operating pressure. This allows for rapid pressure balance in the air conditioning system, thereby improving system stability.

[0035] Optionally, in step S101, the processor determines a target object to which residual heat is to be blown according to the operating state of the air conditioner, including:

[0036] When the air conditioner operates in a heating mode and the compressor is stopped, the processor determines that the target object to be blown of residual heat is the indoor unit.

[0037] When the air conditioner operates in a cooling mode and the compressor is stopped, the processor determines that a target object to which the residual heat is to be blown is the outdoor unit.

[0038] As can be seen above, the operating status of an air conditioner includes the air conditioner operating mode and the compressor start / stop status. Generally, if the air conditioner stops operating in cooling or heating mode, the system load (temperature) will change. Therefore, when the air conditioner stops operating in cooling or heating mode, there is a need to blow away residual heat. Therefore, the air conditioner operating mode here includes heating mode and cooling mode.

[0039] Residual heat is blown to the side with the highest load, that is, the condensing side (the indoor heat exchanger acts as the condenser during heating, and the outdoor heat exchanger acts as the condenser during cooling). When the air conditioner is operating in heating mode and the compressor is stopped, the indoor unit is determined to be the target for residual heat. This compressor shutdown could be due to the air conditioner being shut down, indoor unit overload protection, exhaust protection, or overcurrent protection. When the air conditioner is operating in cooling mode and the compressor is stopped, the outdoor unit is determined to be the target for residual heat. This compressor shutdown could be due to the air conditioner being shut down, exhaust protection, overcurrent protection, or other protections.

[0040] In this way, the target object to be blown with residual heat is determined by combining the operating mode of the air conditioner and the shutdown status of the compressor, so as to ensure that the residual heat is blown to the side with high load, thereby ensuring the stability of the pressure relief of the air conditioning system.

[0041] Optionally, combined Figure 2 As shown, the embodiment of the present disclosure provides another method for controlling the waste heat of an air conditioner, comprising:

[0042] S101: The processor determines a target object to which residual heat is to be blown according to the operating status of the air conditioner.

[0043] S112: The processor calculates the ratio of the first pressure to the second pressure.

[0044] S122: The processor determines the speed of the fan corresponding to the target object and the timing for the target object to stop blowing residual heat according to the ratio.

[0045] S103: The processor controls the target object to operate according to the determined waste heat blowing plan.

[0046] The operating pressure of an air conditioner consists of a first pressure and a second pressure. The first pressure is greater than the second pressure. Optionally, the first pressure is the high pressure, and the second pressure is the low pressure. For air conditioning systems, the low-pressure section is generally defined as the area from the outlet of the throttle pressure reducing valve (capillary tube) to the evaporator, return steam pipe, and the suction end of the compressor. Because the pressures in these areas are very similar, the pressures in these areas are collectively referred to as "low pressure." Similarly, the high-pressure section is defined as the exhaust end of the compressor, the exhaust pipe, the condenser, the filter, and the inlet end of the throttle pressure reducing valve (capillary tube). Since the exhaust pressure is approximately equal to the condensing pressure, the pressures in these areas are collectively referred to as "high pressure." Optionally, the high pressure is the exhaust pressure, and the low pressure is the return gas pressure.

[0047] The ratio ΔP of the first pressure to the second pressure is calculated according to the following formula:

[0048] ΔP=Pg / Pd*100

[0049] Wherein, Pg is the first pressure, and Pd is the second pressure. Optionally, the calculated ΔP is rounded off.

[0050] Residual heat removal is achieved by controlling the fan's operation to dissipate the excess heat. To ensure effective residual heat removal, the fan speed must be controlled and the duration of the residual heat removal must be sufficiently long. Therefore, the residual heat removal plan for a target object includes the fan speed corresponding to the target object and the timing for terminating residual heat removal for the target object, that is, the fan's operating duration. Both the fan speed and the timing for terminating residual heat removal are determined by the ratio of the first pressure to the second pressure. Different fans correspond to different target objects. If the target object is an indoor unit, the corresponding fan is the indoor fan. The indoor fan is controlled to remove the excess heat from the indoor unit. If the target object is an outdoor unit, the corresponding fan is the outdoor fan. The outdoor fan is controlled to remove the excess heat from the outdoor unit. This allows the air conditioner's operating pressure to be directly reflected in the fan speed and the timing for terminating residual heat removal, allowing for precise determination of the residual heat removal plan. This facilitates faster pressure balancing in the air conditioning system.

[0051] Optionally, in step S112, the processor determines the speed of the fan corresponding to the target object according to the ratio, including:

[0052] The processor determines a target internal fan speed corresponding to the current ratio according to a first association relationship between the ratio and the internal fan speed.

[0053] The processor determines a target external fan speed corresponding to the current ratio according to a second association relationship between the ratio and the external fan speed.

[0054] A first association relationship is pre-stored in the processor. The first association relationship includes a correspondence between one or more ratios and the internal fan speed. According to the first association relationship, the target internal fan speed corresponding to the current ratio can be determined. The upper limit / lower limit of the ratio interval is positively correlated with the internal fan speed. Optionally, if the ratio is in the first ratio interval, the target internal fan speed is the first speed. If the ratio is in the second ratio interval, the target internal fan speed is the second speed. If the ratio is in the third ratio interval, the target internal fan speed is the third speed. Among them, the second ratio interval is smaller than the first ratio interval and larger than the third ratio interval. The second speed is smaller than the first speed and larger than the third speed. The speed of the internal fan is generally defined as strong wind speed, high wind speed, medium wind speed or low wind speed. Optionally, the first speed is high wind speed, the second speed is medium wind speed, and the third speed is low wind speed. Specifically, the first association relationship can be seen in Table 1.

[0055] Table 1 The first correlation between the ratio and the internal fan speed

[0056]

[0057] For example, if the calculated ΔP is 150, the internal fan is controlled to run at a medium speed.

[0058] Optionally, ΔP is repeatedly calculated at first preset intervals, and based on the new ΔP, the indoor fan speed is adjusted in real time to determine whether the indoor unit can be controlled to stop blowing residual heat. Optionally, the first preset interval is 4-6 seconds. Alternatively, after initially calculating ΔP and controlling the indoor fan to operate at the corresponding speed, ΔP is repeatedly calculated at first preset intervals. Based on the new ΔP, it is determined whether the indoor unit can be controlled to stop blowing residual heat, but the indoor fan always operates at the speed corresponding to the first calculated ΔP.

[0059] It should be noted that the corresponding relationship in Table 1 can be adjusted according to actual needs.

[0060] A second association relationship is pre-stored in the processor. The second association relationship includes a correspondence between one or more ratios and the external fan speed. Based on the second association relationship, a target external fan speed corresponding to the current ratio can be determined. The upper limit / lower limit of the ratio interval is positively correlated with the external fan speed. Optionally, if the ratio is within the first ratio interval, the target external fan speed is the fourth speed. If the ratio is within the second ratio interval, the target external fan speed is the fifth speed. If the ratio is within the third ratio interval, the target external fan speed is the sixth speed. The second ratio interval is smaller than the first ratio interval and larger than the third ratio interval. The fifth speed is smaller than the fourth speed and larger than the sixth speed. The speed of the external fan is generally defined in levels, for example, 1 to 7. The higher the level, the higher the speed. Optionally, the fourth speed is level 7, the fifth speed is level 5, and the sixth speed is level 3. Specifically, the second association relationship can be seen in Table 2.

[0061] Table 2 The second correlation between the ratio and the external fan speed

[0062]

[0063] For example, if the calculated ΔP is 150, the outdoor fan is controlled to operate at level 5 speed.

[0064] Optionally, ΔP is repeatedly calculated at intervals of a second preset time, and based on the new ΔP, the outdoor fan speed is adjusted in real time and a determination is made as to whether the outdoor unit should be controlled to stop blowing residual heat. Optionally, the second preset time is 4-6 seconds. Alternatively, after initially calculating ΔP and controlling the outdoor fan to operate at the corresponding speed, ΔP is repeatedly calculated at intervals of a second preset time. Based on the new ΔP, a determination is made as to whether the outdoor unit should be controlled to stop blowing residual heat, but the outdoor fan always operates at the speed corresponding to the initially calculated ΔP.

[0065] It should be noted that the corresponding relationship in Table 2 can be adjusted according to actual needs.

[0066] In this way, the ratio of the first pressure to the second pressure is graded, with ratios in different ranges corresponding to different internal / external fan speeds. This achieves a high degree of matching between the ratio of the first pressure to the second pressure and the internal / external fan speeds. This avoids the problem of different ratios corresponding to the same internal / external fan speed, which may not achieve the desired effect or may result in energy waste.

[0067] Optionally, in step S122, the processor determines, based on the ratio, when the target object exits the residual heat blowing mode, including:

[0068] When the ratio is less than the pressure ratio threshold, the processor determines that it is time for the target object to exit the residual heat blowing.

[0069] Since the purpose of residual heat blowing is to restore the pressure of the air conditioning system to equilibrium, ΔP can be used to determine whether the target object has reached the time to stop the residual heat blowing. Set P' as the pressure ratio threshold. When the residual heat blowing begins, record this time t1. As the indoor and outdoor fans operate, the residual heat is continuously blown out, and ΔP gradually decreases. When ΔP < ΔP', the air conditioning system pressure is determined to be balanced, and it is time for the target object to stop the residual heat blowing. Record this time t2. The target object's residual heat blowing duration tc is then t2 - t1.

[0070] If the target object's residual heat blowing is terminated based solely on the condition that ΔP < ΔP', the residual heat blowing period may be excessively long, giving the user the illusion that the unit cannot be shut down. Therefore, a maximum residual heat blowing period, tm, is set. Because internal and external fans are different, the air volume of internal and external fans differs significantly. Generally speaking, external fans have much higher air volume than internal fans. Therefore, the maximum residual heat blowing period, tm, is different for internal and external fans.

[0071] Set the maximum residual heat duration of the indoor unit to tm1. If the air conditioner is operating in heating mode, the target object is the indoor unit. If the indoor unit's residual heat duration reaches tm1, but the ratio still satisfies ΔP ≥ ΔP' (the ratio has not fallen below ΔP'), it is also determined that this is the time for the indoor unit to stop using residual heat. Then, the indoor unit is controlled to end the residual heat. If the indoor unit's residual heat duration has not reached tm1, but the ratio satisfies ΔP < ΔP' (the ratio has fallen below ΔP'), it is determined that this is the time for the indoor unit to stop using residual heat. Then, the indoor unit is controlled to end the residual heat.

[0072] Set the maximum residual heat duration of the outdoor unit to tm2. If the air conditioner is operating in cooling mode, the target object is the outdoor unit. If the outdoor unit's residual heat duration reaches tm2, but the ratio still satisfies ΔP ≥ ΔP' (the ratio has not fallen below ΔP'), it is determined that this is the time for the outdoor unit to stop blowing residual heat. Then, the outdoor unit is controlled to end the residual heat operation. If the outdoor unit's residual heat duration has not reached tm2, but the ratio satisfies ΔP < ΔP' (the ratio has fallen below ΔP'), it is determined that this is the time for the outdoor unit to stop blowing residual heat. Then, the outdoor unit is controlled to end the residual heat operation.

[0073] In this way, the residual heat blowing effect on the target object can be guaranteed, and the excessively long residual heat blowing time can be avoided, which may lead to customer complaints, thereby improving the user experience.

[0074] Optionally, tm1 > tm2. This is because the outdoor fan's air volume is much greater, so the indoor unit's maximum residual heat duration can be set longer to ensure effective residual heat. Optionally, tm2 is 25-35 seconds, and tm1 is 55-65 seconds.

[0075] Optionally, ΔP' ≥ ΔP1. That is, the condition for entering the residual heat blowing mode is lower than the condition for exiting the residual heat blowing mode, making it easier for the target object to enter the residual heat blowing mode. This ensures the timely delivery of residual heat to the target object, thereby ensuring the stability of the air conditioning system.

[0076] Optionally, ΔP' is within the third ratio range and is greater than the lower limit of the third ratio range, i.e., ΔP' is relatively small. Thus, because ΔP' is relatively small, the air conditioner can be controlled to stop blowing residual heat when the ratio drops to a low value, thereby ensuring the residual heat effect. Optionally, ΔP' is 120.

[0077] Optionally, after the air conditioning system is controlled to enter the residual heat blowing mode, the ratio ΔPs (previously calculated) of the first pressure to the second pressure is compared with ΔP'. Based on the comparison result, the speed of the fan corresponding to the target unit is controlled. Specifically, when ΔPs ≥ ΔP', the corresponding fan is controlled to operate according to the control logic described above. When ΔPs < ΔP', if the fan is still controlled according to the control logic described above, the current ΔPs meets the conditions for exiting the residual heat blowing mode, meaning that the residual heat blowing mode is no longer required. However, this phenomenon may be caused by unstable pressure or a calculation error. In this case, if the target unit is an indoor unit, the indoor fan is controlled to operate at a third speed. After a first preset time, ΔP is recalculated. If the new ΔP still satisfies ΔP < ΔP', the residual heat blowing mode is exited. If the new ΔP satisfies ΔP ≥ ΔP', the indoor fan is controlled to operate according to the control logic described above. If the target unit is an outdoor unit, the outdoor fan is controlled to operate at a sixth speed. After a second preset time, ΔP is recalculated. If the new ΔP still satisfies ΔP < ΔP', the residual heat blowing is discontinued. If the new ΔP satisfies ΔP ≥ ΔP', the external fan is controlled to operate according to the control logic described above. This avoids the problem of inaccurate residual heat blowing control to the target object caused by unstable pressure and calculation errors. Furthermore, if ΔPs < ΔP', the fan corresponding to the target object is controlled to operate at a low speed to provide light residual heat blowing to the target object. Thus, if the ΔPs calculation result is accurate, operating the fan at a low speed can achieve a certain degree of energy savings.

[0078] Optionally, combined Figure 3 As shown, the embodiment of the present disclosure provides another method for controlling the waste heat of an air conditioner, comprising:

[0079] S101: The processor determines a target object to which residual heat is to be blown according to the operating status of the air conditioner.

[0080] S102: The processor determines a waste heat blowing solution for the target object according to the operating pressure of the air conditioner.

[0081] S103: The processor controls the target object to operate according to the determined waste heat blowing plan.

[0082] S104: The processor controls the operation of the air guide plate according to the operation mode of the air conditioner.

[0083] When controlling the exhaust heat of the target object, the constant flow of air from the indoor and outdoor units will have a certain impact on the ambient temperature. In particular, the airflow from the indoor unit directly affects the user's indoor ambient temperature. Therefore, based on the different operating modes of the air conditioner, the air guide is controlled to different positions to achieve different effects.

[0084] Optionally, combined Figure 4As shown, the embodiment of the present disclosure provides another method for controlling the waste heat of an air conditioner, comprising:

[0085] S101: The processor determines a target object to which residual heat is to be blown according to the operating status of the air conditioner.

[0086] S102: The processor determines a waste heat blowing solution for the target object according to the operating pressure of the air conditioner.

[0087] S103: The processor controls the target object to operate according to the determined waste heat blowing plan.

[0088] S114: When the operating mode is the heating mode, the processor controls the air guide plate to operate to the cold wind prevention position.

[0089] S124: When the operating mode is the cooling mode, the processor controls the air guide plate to operate to a maximum air outlet position, or controls the air guide plate to maintain a current position.

[0090] If the air conditioner is operating in heating mode, the target of the waste heat is the indoor unit. As the temperature of the internal coil gradually decreases, the outlet air temperature also gradually decreases. If no measures are taken, the low-temperature outlet air will cause discomfort to the user. Therefore, it is necessary to adjust the position of the air deflector to achieve the purpose of preventing cold wind. Optionally, the air deflector can be controlled to move to a cold wind prevention position, for example, to a horizontal upward position.

[0091] If the air conditioner is in cooling mode, the outdoor unit is the target for waste heat. The impact of the airflow on the outdoor ambient temperature does not reduce user comfort. Therefore, the air deflector is controlled to its maximum airflow position to reduce air obstruction and accelerate waste heat removal. Alternatively, the air deflector can be maintained in its current position.

[0092] In this way, the position of the air guide plate is adjusted based on the operating mode of the air conditioner, that is, based on the target object of blowing the residual heat, so as to improve the user's comfort or the rate of blowing the residual heat.

[0093] Optionally, combined Figure 5 As shown, the embodiment of the present disclosure provides another method for controlling the waste heat of an air conditioner, comprising:

[0094] S101: The processor determines a target object to which residual heat is to be blown according to the operating status of the air conditioner.

[0095] S102: The processor determines a waste heat blowing solution for the target object according to the operating pressure of the air conditioner.

[0096] S103: The processor controls the target object to operate according to the determined waste heat blowing plan.

[0097] S104: The processor controls the operation of the air guide plate according to the operation mode of the air conditioner.

[0098] S105 , when the target object meets the condition for exiting the residual heat blowing, the processor controls the fan corresponding to the target object to stop running.

[0099] S106: The processor controls the air guide plate to close.

[0100] As previously explained, if ΔP < ΔP', but tc ≤ tm (tc ≤ tm1 or tc ≤ tm2), the indoor / outdoor unit is determined to have met the conditions for disabling residual heat blowing. If tc = tm (tc = tm1 or tc = tm2), even if ΔP ≥ ΔP', the indoor / outdoor unit is determined to have met the conditions for disabling residual heat blowing. When the conditions for disabling residual heat blowing are met, the indoor / outdoor unit is controlled to shut down and the air guide is closed. This disabling of residual heat blowing is achieved.

[0101] Combine Figure 6 As shown, in actual application:

[0102] S601, the air conditioning compressor stops.

[0103] S602, the processor determines the previous operating mode of the air conditioner; if it is the heating mode, execute S603 and S604; if it is the cooling mode, execute S613 and S614.

[0104] S603 , the processor obtains Pg and Pd, and calculates the first ΔP, ie, ΔPs, according to ΔP=Pg / Pd*100; and then executes S605 .

[0105] In step S604 , the processor controls the air guide plate to move to the cold wind prevention position; and then executes step S605 .

[0106] S605 , the processor determines whether ΔPs≥ΔP′ is satisfied; if so, executes S606 ; if not, executes S610 .

[0107] S606: After a first preset time period, the processor calculates a new ΔP again according to ΔP=Pg / Pd*100.

[0108] S607, the processor determines the ratio range of the new ΔP; if ΔP ≥ 200, execute S608; if 150 ≤ ΔP < 200, execute S609; if 100 ≤ ΔP < 150, execute S610.

[0109] In S608, the processor controls the internal fan to operate at a high wind speed; and then executes S611.

[0110] S609, the processor controls the internal fan to run at a medium speed; then executes S611.

[0111] S610: The processor controls the internal fan to operate at a low wind speed; then executes S611.

[0112] S611 , the processor determines whether ΔP<ΔP′ and tc≤tm1 is satisfied, or whether ΔP≥ΔP′ and tc=tm1 is satisfied; if yes, execute S612 ; if no, execute S606 .

[0113] S612: The processor controls the internal fan to stop running and the air guide plate to close.

[0114] In step S613 , the processor obtains Pg and Pd, and calculates the first ΔP, ie, ΔPs, according to ΔP=Pg / Pd*100; and then executes step S615 .

[0115] S614: The processor controls the air guide plate to move to the maximum air outlet position, or maintain the current position; then executes S615.

[0116] S615 , the processor determines whether ΔPs≥ΔP′ is satisfied; if so, executes S616 ; if not, executes S620 .

[0117] S616: After a second preset time period, the processor again calculates a new ΔP according to ΔP=Pg / Pd*100.

[0118] S617, the processor determines the ratio range of the new ΔP; if ΔP ≥ 200, execute S618; if 150 ≤ ΔP < 200, execute S619; if 100 ≤ ΔP < 150, execute S620.

[0119] In S618, the processor controls the outdoor fan to operate at level 7 speed; then executes S621.

[0120] In S619, the processor controls the external fan to operate at level 5 speed; then executes S621.

[0121] S620: The processor controls the external fan to operate at level 3 speed; then executes S621.

[0122] S621 , the processor determines whether ΔP<ΔP′ and tc≤tm2 are satisfied, or whether ΔP≥ΔP′ and tc=tm2 are satisfied; if yes, execute S622 ; if not, execute S616 .

[0123] S622: The processor controls the external fan to stop running and the air guide plate to close.

[0124] Combine Figure 7As shown, an embodiment of the present disclosure provides an apparatus for controlling the residual heat blowing of an air conditioner, comprising: a first determination module 71, a second determination module 72, and a control module 73. The first determination module 71 is configured to determine a target object to be blown with residual heat based on the operating state of the air conditioner. The second determination module 72 is configured to determine a residual heat blowing scheme for the target object based on the operating pressure of the air conditioner. The control module 73 is configured to control the target object to operate according to the determined residual heat blowing scheme.

[0125] The device for controlling air conditioner residual heat blowing provided by the embodiments of the present disclosure first determines, based on the air conditioner's operating status, whether the target unit for residual heat blowing is the indoor unit or the outdoor unit. Then, based on the air conditioner's operating pressure, a residual heat blowing strategy for the target unit is determined. This allows for a direct matching of the pressure with the target unit, allowing for rapid pressure balance in the air conditioning system and improving system stability.

[0126] Combine Figure 8 As shown, an embodiment of the present disclosure provides a device for controlling the waste heat of an air conditioner, comprising a processor 80 and a memory 81. Optionally, the device may further comprise a communication interface 82 and a bus 83. The processor 80, the communication interface 82, and the memory 81 may communicate with each other via the bus 83. The communication interface 82 may be used for information transmission. The processor 80 may invoke the logic instructions in the memory 81 to execute the method for controlling the waste heat of an air conditioner according to the above embodiment.

[0127] In addition, the logic instructions in the memory 81 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0128] Memory 81, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 80 executes the program instructions / modules stored in memory 81 to execute functional applications and process data, thereby implementing the method for controlling the air conditioner's waste heat blowing in the above-described embodiments.

[0129] The memory 81 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 81 may include high-speed random access memory and non-volatile memory.

[0130] An embodiment of the present disclosure provides an air conditioner, comprising the above-mentioned device for controlling the air conditioner to blow away residual heat.

[0131] An embodiment of the present disclosure provides a storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for controlling the air conditioner to blow away residual heat.

[0132] The aforementioned storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0133] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. Moreover, the terms used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, the singular forms "a", "an" and "the" are intended to also include the plural forms unless the context clearly indicates otherwise. Similarly, the term "and / or" as used in this application means any and all possible combinations of one or more of the associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be referred to the description of the method part.

[0134] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0135] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices and equipment) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units may be merely a logical functional division. In actual implementation, other divisions may be used, such as combining or integrating multiple units or components into another system, or omitting or disabling some features. Furthermore, the couplings or direct couplings or communication connections shown or discussed may be through interfaces, indirect couplings or communication connections between devices or units, and may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of these units may be selected to implement the embodiments according to actual needs. Furthermore, the functional units in the disclosed embodiments may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0136] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend 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 boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling waste heat from an air conditioner, characterized in that: include: Determining a target object for blowing residual heat according to an operating state of the air conditioner; wherein the operating state of the air conditioner includes: an operating mode of the air conditioner and a start / stop state of the compressor; determining a target object for blowing residual heat according to the operating state of the air conditioner includes: when the air conditioner is operating in a heating mode and the compressor is stopped, determining the target object for blowing residual heat to be an indoor unit; when the air conditioner is operating in a cooling mode and the compressor is stopped, determining the target object for blowing residual heat to be an outdoor unit; Determining a residual heat blowing scheme for a target object based on the operating pressure of the air conditioner; wherein the operating pressure of the air conditioner includes: a first pressure and a second pressure, the first pressure being greater than the second pressure; the first pressure being a high pressure, and the second pressure being a low pressure; determining the residual heat blowing scheme for the target object based on the operating pressure of the air conditioner includes: calculating a ratio of the first pressure to the second pressure; determining a fan speed corresponding to the target object and a timing for the target object to exit the residual heat blowing based on the ratio; wherein determining the timing for the target object to exit the residual heat blowing based on the ratio includes: determining that the target object is at the time to exit the residual heat blowing when the ratio is less than a pressure ratio threshold; Determining the waste heat blowing scheme for the target object based on the operating pressure of the air conditioner further includes: when the target object is an indoor unit, determining the speed of the indoor fan corresponding to the current ratio based on a first correlation between the ratio and the speed of the indoor fan; when the target object is an outdoor unit, determining the speed of the outdoor fan corresponding to the current ratio based on a second correlation between the ratio and the speed of the outdoor fan; Control the target object and operate according to the determined waste heat blowing plan.

2. The method according to claim 1, characterized in that When the target object is the indoor unit, if the residual heat blowing time of the indoor unit reaches tm1, but the ratio is still greater than or equal to the ratio threshold, it is also determined that this is the time for the indoor unit to exit the residual heat blowing mode; When the target object is the outdoor unit, if the outdoor unit's residual heat blowing duration reaches tm2, but the ratio is still greater than or equal to the ratio threshold, it is also determined that this is the time for the outdoor unit to exit the residual heat blowing mode. Among them, tm1>tm2.

3. The method according to claim 1, characterized in that The step of determining the timing for the target object to exit the residual heat blowing according to the ratio further includes: When the ratio of the first pressure to the second pressure calculated initially is less than the ratio threshold, if the target object is the indoor unit, the indoor fan is controlled to operate at a third speed; after a first preset time period, the ratio of the first pressure to the second pressure is calculated again; If the ratio of the first pressure to the second pressure is calculated again and is still smaller than the ratio threshold, it is determined that it is time for the indoor unit to stop blowing residual heat.

4. The method according to claim 1, wherein The step of determining the timing for the target object to exit the residual heat blowing according to the ratio further includes: When the ratio of the first pressure to the second pressure calculated initially is less than the ratio threshold, if the target object is an outdoor unit, the outdoor fan is controlled to operate at a sixth speed; after a first preset time has passed, the ratio of the first pressure to the second pressure is calculated again; If the ratio of the first pressure to the second pressure is calculated again and is still smaller than the ratio threshold, it is determined that it is time for the outdoor unit to stop blowing residual heat.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: Control the operation of the air guide plate according to the operating mode of the air conditioner.

6. The method according to claim 5, characterized in that The step of controlling the air guide plate to operate according to the operating mode of the air conditioner includes: When the operation mode is heating mode, the air guide plate is controlled to move to the cold wind prevention position; When the operation mode is cooling mode, the air guide plate is controlled to move to the maximum air outlet position, or the air guide plate is controlled to maintain the current position.

7. The method according to any one of claims 1 to 4, characterized in that The method further comprises: When the target object meets the condition for exiting the waste heat blowing, the fan corresponding to the target object is controlled to stop running; Control the air deflector to close.

8. A device for controlling the waste heat of an air conditioner, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the method for controlling the air conditioner to blow away residual heat according to any one of claims 1 to 7 when running the program instructions.

9. An air conditioner, characterized in that: The device comprises the device for controlling the waste heat blowing of the air conditioner as claimed in claim 8.

10. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the method for controlling the air conditioner to blow away residual heat according to any one of claims 1 to 7 is executed.

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