Air conditioner heating control method and air conditioner

Abstract

The present invention provides a heating control method for an air conditioner and an air conditioner. The heating control method includes the following steps: S1: determining the situation of an air conditioner in heating mode after stopping heating; S2: comparing the heating set temperature, indoor ambient temperature, and indoor cooling rate based on the corresponding situation, and determining whether the air conditioner that has stopped heating should restart heating. Using this solution, the pre-influencing factors for restarting heating are distinguished based on the situation before the air conditioner was shut down, thereby adopting different heating startup logics. This solution compares the heating set temperature, indoor ambient temperature, and indoor cooling rate based on different shutdown situations, avoiding the situation in the prior art where the air conditioner cannot distinguish between the same startup logic during operation, resulting in a large temperature drop and uncomfortable heating. This solution solves the problem of delayed restarting of heating due to the difficulty of the air conditioner meeting the restarting conditions when the air conditioner is shut down due to not reaching the temperature point, thereby improving the thermal comfort experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner heating control, and in particular to an air conditioner heating control method and an air conditioner. Background Art

[0002] The air conditioner's heating activation requires certain temperature conditions. Heating starts when the indoor ambient temperature falls below the set temperature, and the temperature difference (ΔT) required to activate heating is generally a fixed value. However, during heating operation, heating may be shut down before the desired temperature is reached, such as during defrost control. If the indoor ambient temperature approaches the desired temperature, the indoor ambient temperature will not be updated during the defrost period to ensure effective defrosting. Consequently, when heating is restarted after defrosting, the heating activation conditions may not be met, leading to a delay in heating activation. This can cause a significant temperature drop and uncomfortable heating. Summary of the Invention

[0003] The present invention provides a heating control method for an air conditioner and an air conditioner, so as to solve the problem of delayed startup when the air conditioner is restarted to heat in the prior art.

[0004] In order to solve the above problems, according to one aspect of the present invention, the present invention provides an air conditioner heating control method, which is used to control the air conditioner in heating mode to stop and then heat up. The air conditioner heating control method includes: S1: judging the situation after the air conditioner in heating mode stops heating; S2: comparing the heating set temperature, indoor ambient temperature, and indoor cooling rate according to the corresponding situation, and judging whether the air conditioner that stopped heating should restart heating.

[0005] Furthermore, the situations in which the air conditioner in the heating mode stops heating include: the air conditioner has heated the indoor room to a desired temperature; and the air conditioner needs to be defrosted and shut down.

[0006] Furthermore, the indoor ambient temperature includes the indoor real-time ambient temperature T2, the heating set temperature is T1, and S2 includes: when T1-T2≥△T, the air conditioner in the heating mode restarts heating; when T1-T2<△T, the air conditioner in the heating mode is on standby; wherein, -5℃≤△T≤5℃.

[0007] Furthermore, ΔT includes ΔT1. When the air conditioner stops heating after heating the indoor room to the desired temperature, the difference between T1 and T2 is compared with ΔT1.

[0008] Furthermore, ΔT includes at least ΔT2 and ΔT3. When the air conditioner stops heating due to the need for defrosting, the difference between T1 and T2 is compared with ΔT2 or ΔT3, wherein ΔT2≥ΔT3.

[0009] Furthermore, the indoor cooling rate includes the indoor real-time cooling rate V0 and the standard cooling rate V. When the air conditioner stops heating due to the need for a defrost shutdown operation, and before determining the difference between T1 and T2 and the size of ΔT, S2 further includes: comparing the size between the real-time cooling rate V0 and the standard cooling rate V to limit the comparison of one of ΔT2 and ΔT3 with the difference between T1 and T2.

[0010] Furthermore, △T2 includes △T21 and △T22, △T3 includes △T31 and △T32, and the standard cooling rate V includes a first standard cooling rate V1 and a second standard cooling rate V2. When V0≤V1, the difference between △T21 and T1 and T2 is compared; when V0>V1, the difference between △T22 and T1 and T2 is compared; when V0≤V2, the difference between △T31 and T1 and T2 is compared; when V0>V2, the difference between △T32 and T1 and T2 is compared; △T21>△T22=△T32>△T31.

[0011] Furthermore, the indoor real-time cooling rate V0 is the indoor temperature drop value per minute, 0°C / min≤V1≤10°C / min, 0°C / min≤V2≤10°C / min.

[0012] Furthermore, the indoor ambient temperature includes the indoor ambient temperature T3 before shutdown and the indoor ambient temperature T4 after shutdown. The air conditioner in the heating mode stops heating when a defrost shutdown operation is required, and before comparing the indoor real-time cooling rate V0 with the standard cooling rate V1 or the standard cooling rate V2, S2 includes: when T3-T4≤△T4, comparing the sizes of V0 and V1; when T3-T4>△T4, comparing the sizes of V0 and V2; wherein, -5℃≤△T4≤5℃.

[0013] According to another aspect of the present invention, an air conditioner is provided, and the air conditioner applies the above-mentioned air conditioner heating control method.

[0014] The technical solution of the present invention provides a heating control method for an air conditioner. The method is used to control the reheating of an air conditioner in heating mode after it stops. The method comprises the following steps: S1: determining the situation of the air conditioner in heating mode after it stops heating; S2: comparing the heating set temperature, the indoor ambient temperature, and the indoor cooling rate based on the corresponding situation, and determining whether the air conditioner that stopped heating should resume heating. Using this method, the pre-influencing factors for re-starting heating are distinguished based on the shutdown situation of the air conditioner before it stopped, thereby adopting different heating startup logics. Specifically, this method compares the heating set temperature, the indoor ambient temperature, and the indoor cooling rate based on different shutdown situations to facilitate the formulation of corresponding heating startup strategies. This avoids the problem in the prior art where the air conditioner fails to distinguish the pre-influencing factors during operation and adopts the same startup logic, resulting in a large temperature drop and uncomfortable heating. This method solves the problem of delayed heating startup due to the difficulty of meeting the restart conditions when the air conditioner is shut down due to not reaching the temperature point, thereby improving the thermal comfort experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 A flow chart of a method for controlling heating of an air conditioner according to an embodiment of the present invention is shown;

[0017] Figure 2 A flow chart of a heating control method for an air conditioner provided by another embodiment of the present invention is shown. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative work are within the scope of protection of the present invention.

[0019] like Figure 1As shown, an embodiment of the present invention provides an air conditioner heating control method, which is used to control the air conditioner in the heating mode to stop and then heat up. The air conditioner heating control method includes: S1: judging the situation after the air conditioner in the heating mode stops heating; S2: comparing the heating set temperature, the indoor ambient temperature, and the indoor cooling rate according to the corresponding situation, and judging whether the air conditioner that has stopped heating should restart heating.

[0020] In this embodiment, the pre-influencing factors when restarting the heating are distinguished according to the shutdown situation before the air conditioner is shut down, so as to adopt different heating startup logics. Specifically, this scheme compares the heating set temperature, indoor ambient temperature and indoor cooling rate according to different shutdown situations, so as to formulate corresponding heating startup strategies. This avoids the situation in the prior art where the air conditioner cannot distinguish the pre-influencing factors during operation and adopts the same startup logic, resulting in a large temperature drop and uncomfortable heating. It solves the problem of delayed startup of the heating due to difficulty in meeting the restart conditions when the air conditioner is shut down due to failure to reach the temperature point, thereby improving the thermal comfort experience.

[0021] like Figure 2 As shown, the following scenarios occur when an air conditioner in heating mode stops heating: the air conditioner has heated the room to the desired temperature; or the air conditioner requires a defrost shutdown. This configuration facilitates the development of a corresponding heating startup strategy, avoiding the prior art situation where air conditioners fail to distinguish between pre-influencing factors during operation and use the same startup logic, resulting in a large defrost temperature drop. This also addresses the issue of delaying the restart of heating when the air conditioner is shut down due to defrost and fails to reach the desired temperature. This reduces the defrost temperature drop and ensures a comfortable thermal experience. Furthermore, the air conditioner also includes situations requiring shutdown due to faults, for example. In these cases, the corresponding heating startup strategy is the same as the heating startup strategy when the air conditioner requires a defrost shutdown.

[0022] like Figure 2 As shown, the indoor ambient temperature includes the real-time indoor ambient temperature T2, the heating set temperature is T1, and S2 includes: when T1-T2 ≥ △T, the air conditioner in heating mode restarts heating; when T1-T2 < △T, the air conditioner in heating mode enters standby mode; wherein -5°C ≤ △T ≤ 5°C. This setting facilitates precise control of the air conditioner's restart of heating, improving the thermal comfort experience. Specifically, in this embodiment, the numerical values ​​of T1 and T2 are not directly compared to determine whether to restart heating. This avoids the situation where the difference between T1 and T2 appears quickly when directly compared, resulting in frequent turning on and off of the air conditioner. Using △T as the comparison object provides a buffer zone for the temperature difference between T1 and T2. While ensuring the heating effect and the accuracy of restarting heating, it also ensures the reliability and stability of the transition between the air conditioner's restarting heating and shutdown states.

[0023] Specifically, ΔT includes ΔT1. When the air conditioner stops heating after heating the room to the desired temperature, the difference between T1 and T2 is compared with ΔT1. In this embodiment, the air conditioner in heating mode shuts down after detecting that the ambient temperature has reached the desired temperature. After shutting down, the judgment step is entered. If the difference between the heating set temperature T1 and the real-time ambient temperature T2 is greater than or equal to ΔT1, it indicates that the real-time indoor ambient temperature T2 has significantly deviated from the heating set temperature T1 and cannot meet the indoor ambient temperature requirement. At this time, the air conditioner restarts heating. If the difference between the heating set temperature T1 and the real-time ambient temperature T2 is less than ΔT1, it indicates that the real-time indoor ambient temperature T2 is close to the heating set temperature T1, T2 can meet the indoor ambient temperature requirement, and the air conditioner continues in standby mode.

[0024] Furthermore, ΔT includes at least ΔT2 and ΔT3. When the air conditioner stops heating due to a defrost shutdown operation, the difference between T1 and T2 is compared with ΔT2 or ΔT3, where ΔT2 ≥ ΔT3. In this embodiment, when the air conditioner in heating mode detects that it needs to shut down after defrosting, it enters this judgment step after shutting down. If the difference between the heating set temperature T1 and the real-time ambient temperature T2 is greater than or equal to ΔT2 or ΔT3, it indicates that the real-time indoor ambient temperature T2 has significantly deviated from the heating set temperature T1 and cannot meet the indoor ambient temperature requirement. At this time, the air conditioner restarts heating. If the difference between the heating set temperature T1 and the real-time ambient temperature T2 is less than ΔT2 or ΔT3, it indicates that the real-time indoor ambient temperature T2 is close to the heating set temperature T1 and T2 can meet the indoor ambient temperature requirement. The air conditioner continues in standby mode. Furthermore, the comparison objects in this embodiment include ΔT2 and ΔT3, which further ensures precise control of the heating restart conditions when the air conditioner is shut down after defrosting, thereby improving the thermal comfort experience. When the air conditioner heating control method is in the shutdown state, the number of ΔTs included is not limited and can be determined based on actual conditions.

[0025] Specifically, the indoor cooling rate includes the indoor real-time cooling rate V0 and the standard cooling rate V. When the air conditioner stops heating due to the need for a defrost shutdown operation, and before judging the difference between T1 and T2 and the size of △T, S2 also includes: comparing the size between the real-time cooling rate V0 and the standard cooling rate V to limit the comparison of one of △T2 and △T3 with the difference between T1 and T2.

[0026] In this embodiment, when an air conditioner in heating mode detects that defrosting is required and then shuts down, it enters this determination step. Before determining the difference between T1 and T2 and the magnitude of ΔT, the relationship between V0 and V is first determined. This determines whether to compare one of ΔT2 and ΔT3 with the difference between T1 and T2. This configuration avoids the situation where the difference between T1 and T2 cannot be accurately determined and compared with ΔT2 or ΔT3, thereby ensuring the reliability of the air conditioner heating control method.

[0027] like Figure 2 As shown, △T2 includes △T21 and △T22, △T3 includes △T31 and △T32, the standard cooling rate V includes the first standard cooling rate V1 and the second standard cooling rate V2, when V0≤V1, compare the difference between △T21 and T1 and T2; when V0>V1, compare the difference between △T22 and T1 and T2; when V0≤V2, compare the difference between △T31 and T1 and T2; when V0>V2, compare the difference between △T32 and T1 and T2; △T21>△T22=△T32>△T31.

[0028] In this embodiment, an air conditioner in heating mode detects that defrosting is required and then shuts down. After shutdown, the system enters this determination step. Before determining the difference between T1 and T2 and the magnitude of ΔT, the system first determines the magnitude relationship between V0 and V1, or between V0 and V2. Then, based on the determination, one of ΔT21, ΔT22, ΔT31, and ΔT32 is compared with the difference between T1 and T2. This configuration further enhances the applicability of the method and ensures the reliability of the air conditioner heating control method in determining whether the air conditioner needs to restart heating. In this embodiment, V1 corresponds to ΔT2, and V2 corresponds to ΔT3. The number of these corresponding relationships can be adjusted based on actual conditions.

[0029] Specifically, the real-time indoor cooling rate V0 is the amount of indoor temperature drop per minute, with 0°C / min ≤ V1 ≤ 10°C / min, and 0°C / min ≤ V2 ≤ 10°C / min. This setting allows for different V1 and V2 values ​​to be used for comparison and judgment based on different heating conditions, improving the applicability and reliability of the air conditioner heating control method.

[0030] like Figure 2As shown, the indoor ambient temperature includes the indoor ambient temperature T3 before shutdown and the indoor ambient temperature T4 after shutdown. The air conditioner in the heating mode stops heating when a defrosting shutdown operation is required, and before comparing the indoor real-time cooling rate V0 with the standard cooling rate V1 or the standard cooling rate V2, S2 includes: when T3-T4≤△T4, comparing the sizes of V0 and V1; when T3-T4>△T4, comparing the sizes of V0 and V2; wherein, -5℃≤△T4≤5℃.

[0031] In this embodiment, an air conditioner in heating mode detects that defrosting is required and then shuts down. Upon shutdown, the system enters this determination step. Before comparing the real-time indoor temperature drop rate V0 with the standard temperature drop rate V1 or the standard temperature drop rate V2, the difference between T3 and T4 is compared with ΔT4. Specifically, if T3 - T4 ≤ ΔT4, the indoor ambient temperature drop rate V0 is further detected and compared with the standard temperature drop rate V1. If T3 - T4 > ΔT4, the indoor ambient temperature drop rate V0 is further detected and compared with the standard temperature drop rate V2. This configuration ensures the reliability of the heating control method for re-heating the air conditioner in the event of a shutdown.

[0032] Another embodiment of the present invention, not shown in the figures, provides an air conditioner that utilizes the aforementioned air conditioner heating control method. In this embodiment, pre-influencing factors for restarting heating are distinguished based on the shutdown conditions of the air conditioner prior to shutdown, thereby employing different heating startup logics. Specifically, this solution compares the heating set temperature, indoor ambient temperature, and indoor cooling rate based on the different shutdown conditions to facilitate the formulation of corresponding heating startup strategies. This avoids the prior art situation in which air conditioners fail to distinguish pre-influencing factors during operation and instead employ the same startup logic, resulting in significant temperature drops and uncomfortable heating. This solution addresses the issue of delayed heating startup due to the air conditioner being unable to meet restart conditions when the air conditioner is shut down due to not reaching the desired temperature point, thereby improving the thermal comfort experience.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0035] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0036] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0037] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0038] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A heating control method for an air conditioner, characterized in that: The air conditioner heating control method is used to control the air conditioner in the heating mode to stop and then heat up. The air conditioner heating control method includes: S1: determining the situation of the air conditioner in the heating mode after stopping heating; the situation of the air conditioner in the heating mode after stopping heating includes: the air conditioner has heated the room to the required temperature; the air conditioner needs to be defrosted and shut down; S2: When the air conditioner has heated the room to the required temperature, the heating set temperature and the indoor ambient temperature are compared to determine whether the air conditioner that has stopped heating should restart heating; when the air conditioner needs to be shut down for defrosting, the heating set temperature, the indoor ambient temperature, and the indoor cooling rate are compared to determine whether the air conditioner that has stopped heating should restart heating.

2. The air conditioner heating control method according to claim 1, characterized in that: The indoor ambient temperature includes the indoor real-time ambient temperature T2, the heating setting temperature is T1, and S2 includes: When T1-T2≥ΔT, the air conditioner in the heating mode restarts heating; When T1-T2<ΔT, the air conditioner in the heating mode is in standby mode; Among them, -5℃≤△T≤5℃.

3. The air conditioner heating control method according to claim 2, characterized in that: The ΔT includes ΔT1. When the air conditioner stops heating after heating the indoor room to a desired temperature, the difference between T1 and T2 is compared with ΔT1.

4. The air conditioner heating control method according to claim 2, characterized in that: The ΔT includes at least ΔT2 and ΔT3. When the air conditioner stops heating due to a defrosting shutdown operation, the difference between T1 and T2 is compared with ΔT2 or ΔT3, wherein ΔT2≥ΔT3.

5. The air conditioner heating control method according to claim 4, characterized in that: The indoor cooling rate includes a real-time indoor cooling rate V0 and a standard cooling rate V. When the air conditioner stops heating due to a defrost shutdown operation, and before determining the difference between T1 and T2 and the size of ΔT, S2 further includes: The real-time cooling rate V0 is compared with the standard cooling rate V to define a difference between one of ΔT2 and ΔT3 and T1 or T2.

6. The air conditioner heating control method according to claim 5, characterized in that: The ΔT2 includes ΔT21 and ΔT22, the ΔT3 includes ΔT31 and ΔT32, the standard cooling rate V includes a first standard cooling rate V1 and a second standard cooling rate V2, When V0≤V1, compare the difference between △T21 and T1 and T2; When V0>V1, compare the difference between △T22 and T1 and T2; When V0≤V2, compare the difference between △T31 and T1 and T2; When V0>V2, compare the difference between △T32 and T1 and T2; △T21>△T22=△T32>△T31.

7. The air conditioner heating control method according to claim 6, characterized in that: The indoor real-time cooling rate V0 is the indoor temperature drop value per minute, 0°C / min≤V1≤10°C / min, 0°C / min≤V2≤10°C / min.

8. The air conditioner heating control method according to claim 6, characterized in that: The indoor ambient temperature includes the indoor ambient temperature T3 before shutdown and the indoor ambient temperature T4 after shutdown. When the air conditioner in the heating mode stops heating due to a need for a defrost shutdown operation, and before comparing the indoor real-time cooling rate V0 with the standard cooling rate V1 or the standard cooling rate V2, S2 includes: When T3-T4≤△T4, compare V0 and V1; When T3-T4>△T4, compare the sizes of V0 and V2; Among them, -5℃≤△T4≤5℃.

9. An air conditioner, characterized in that: The air conditioner applies the air conditioner heating control method according to any one of claims 1 to 8.

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