Room temperature control method, storage medium and heat pump air conditioner

Abstract

The invention provides a room temperature control method, a storage medium and a heat pump air conditioner. The room temperature control method comprises the steps that the current room temperature is detected every time t0, the current room temperature detection value Troom is obtained, the difference value delta T0 between the preset temperature Tset and the current room temperature detection value Troom is obtained, delta T0 = Tset-Troom, whether delta T0 is larger than 0 or not is judged, if yes, a heat pump system is started, and if not, the heat pump system is started; the method comprises the following steps: acquiring a current room temperature change rate k, dividing an adjusting range of a target outlet water temperature T according to the value of delta T0, setting a corresponding water temperature correction value delta F according to the value of k in different adjusting ranges, and correcting the target outlet water temperature T so as to adjust the current room temperature. Enabling the current room temperature to approach the target room temperature; and if not, the heat pump system is closed. According to the room temperature control method, the storage medium and the heat pump air conditioner, the accuracy of room temperature control can be effectively improved, and frequent starting and stopping of the heat pump air conditioner system are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of temperature control, and in particular to a room temperature control method, a storage medium and a heat pump air conditioner. Background Art

[0002] The room temperature adjustment modes of heat pump air conditioners include heating and cooling. In cooling mode, the indoor terminal is usually a fan coil unit, which can adjust and start according to the room temperature, so the room temperature adjustment is relatively accurate and does not require additional adjustment. In heating mode, the terminal equipment of heat pump air conditioners usually includes fan coil units, radiators or floor heating, etc. When using terminal equipment such as radiators or floor heating for heating, in order to make the room temperature control more accurate, it is often necessary to adjust the outlet water temperature so that the actual indoor temperature is closer to the set room temperature.

[0003] In the process of realizing this application, the inventor found that there are at least the following problems in the prior art: the existing heat pump air conditioners mostly control the outlet water temperature according to the difference between the actual room temperature and the set room temperature. For example, when the actual room temperature is lower than the set room temperature by more than 1°C, the outlet water temperature is increased; when the difference between the actual room temperature and the set room temperature is about 1°C, the outlet water temperature remains unchanged; when the actual room temperature is higher than the set room temperature by more than 1°C, the outlet water temperature is reduced. The above-mentioned room temperature adjustment method is relatively simple, and the room temperature adjustment accuracy is low. The outlet water temperature is not adjusted according to the specific operation status of the heat pump system, which will cause the room temperature to fluctuate, unable to meet the user's comfort requirements, and will cause the heat pump system unit to start and stop frequently, increasing energy consumption. Summary of the invention

[0004] Based on this, the present application provides a room temperature control method, a storage medium and a heat pump air conditioner to improve the problems of a single room temperature adjustment method and low adjustment accuracy in the prior art.

[0005] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a room temperature control method for a heat pump system, comprising the following steps:

[0007] The current room temperature is detected at every interval t0, and the current room temperature detection value T is obtained. 室 , get the preset temperature T 设 And the current room temperature detection value T 室 The temperature difference ΔT0, ΔT0 = T 设 -T 室 , determine whether ΔT0 is greater than 0,

[0008] If yes, the heat pump system is turned on, and the current room temperature change rate k is obtained. The target outlet water temperature T is set according to the value of ΔT0. 目标出水温度 The adjustment range is divided into different ranges, and the corresponding water temperature correction value ΔF is set according to the size of the k value in different adjustment ranges. 水温修正值 , for the target outlet water temperature T 目标出水温度 Make corrections so that T 目标出水温度 =T 当前出水温度 +ΔF 水温修正值 , so as to adjust the current room temperature so that the current room temperature approaches the target room temperature;

[0009] If not, the heat pump system is turned off.

[0010] In one embodiment, the rate of change of the target room temperature increases as ΔT0 increases, and decreases as ΔT0 decreases.

[0011] In one embodiment, the target room temperature satisfies the following curve segment equation: Among them, k1 is the minimum room temperature change rate set when the temperature difference ΔT0>2, and t1 is the set value from the current room temperature T 室 Run to the preset temperature T 设 The time required.

[0012] In one embodiment, the target water outlet temperature T 目标出水温度 The adjustment range includes the first adjustment range, at this time ΔT0>2, in the first adjustment range, when k≤k1, make 1≤ΔF 水温修正值 ≤3; when k>k1, make ΔF 水温修正值 =0.

[0013] In one embodiment, the target water outlet temperature T 目标出水温度 The adjustment range includes the second adjustment range, at this time 2≥ΔT0>1, in the second adjustment range, when k≥(k1+k2) / 2, make -2≤ΔF 水温修正值 <0; when (k1+k2) / 2>k>0, ΔF 水温修正值 =0; when k≤0, make 2≥ΔF 水温修正值 >0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0014] In one embodiment, the target water outlet temperature T 目标出水温度 The adjustment range includes a third adjustment range, where 1≥ΔT0>0. Within the third adjustment range, when k≥k2 / 2, -2≤ΔF 水温修正值 <0; when k2 / 2>k>0, ΔF 水温修正值=0; when k≤0, make 2≥ΔF 水温修正值 >0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0015] In one embodiment, the target water outlet temperature T 目标出水温度 The adjustment range includes a fourth adjustment range, where 0 ≥ ΔT0 > -1. Within the fourth adjustment range, when k ≤ -k2 / 2, 2 ≤ ΔF 水温修正值 <0; when -k2 / 2<k<0, ΔF 水温修正值 =0; when k≥0, make -2≤ΔF 水温修正值 <0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0016] In one embodiment, the target water outlet temperature T 目标出水温度 The adjustment range includes the fifth adjustment range, at this time -1≥ΔT0>-2, in the fifth adjustment range, when k≥0, make -2≤ΔF 水温修正值 <0; when k<0, make ΔF 水温修正值 =0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0017] In one embodiment, the target water outlet temperature T 目标出水温度 The adjustment range includes the sixth adjustment range, at this time ΔT0≤-2, in the sixth adjustment range, when k≥0, make -3≤ΔF 水温修正值 ≤-1; when k<0, make ΔF 水温修正值 =0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0018] In a second aspect, an embodiment of the present application provides a storage medium, wherein the storage medium stores a room temperature control program, and when the room temperature control program is executed by a processor, the room temperature control method as described above is implemented.

[0019] In a third aspect, an embodiment of the present application provides a heat pump air conditioner, comprising a memory and a processor, wherein the memory stores a room temperature control program, and when the room temperature control program is executed by the processor, the room temperature control method as described above is implemented.

[0020] The present application has at least the following beneficial effects: the room temperature control method provided by the present application divides the adjustment range of the target water outlet temperature according to the difference between the current room temperature and the preset temperature, so that the target water outlet temperature can adopt different water temperature correction schemes under the conditions of different temperature differences, thereby improving the accuracy of room temperature control. At the same time, within different adjustment ranges, the water temperature correction value will be further adjusted according to the different room temperature change rates to prevent the room temperature from fluctuating, so that the current room temperature approaches the target room temperature, and will not cause the frequent start and stop of the heat pump system, further improving the accuracy of room temperature control and reducing energy consumption. The heat pump air conditioner provided by the present application executes the room temperature control program in the memory through the processor to implement the above-mentioned room temperature control method, thereby accurately controlling the room temperature and improving the user's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of a target room temperature curve segment of a room temperature control method according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the implementation of this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] The embodiment of the present application provides a heat pump air conditioner, which is connected to a terminal device, such as a radiator or floor heating, etc. The heat pump air conditioner is provided with a processor and a memory (ie, a storage medium), the memory stores a room temperature control program, and the room temperature control method is implemented when the room temperature control program is executed by the processor.

[0027] Specifically, the heat pump air conditioner also includes a compressor, a four-way reversing valve, a gas-liquid separator, an indoor heat exchanger, an expansion valve, a drying filter and an outdoor heat exchanger that are cyclically connected. In order to enhance the heating effect of the heat pump air conditioner, an enthalpy increase port can also be provided on the compressor, and an economizer and an economizer expansion valve can be provided. One flow channel of the economizer is connected between the indoor heat exchanger and the expansion valve, and the other flow channel is connected in series with the economizer expansion valve, and the outlet is connected to the enthalpy increase port to achieve enthalpy increase of the compressor.

[0028] The room temperature control method provided in the embodiment of the present application is used to improve the accuracy of room temperature control, improve the physical comfort of the human body, and avoid excessive room temperature fluctuations and frequent start and stop of the compressor. Specifically, the room temperature control method includes the following steps:

[0029] The current room temperature is detected at every interval t0, and the current room temperature detection value T is obtained. 室 , get the preset temperature T 设 And the current room temperature detection value T 室 The temperature difference ΔT0, ΔT0 = T 设 -T 室 , determine whether ΔT0 is greater than 0,

[0030] If yes, start the heat pump system and obtain the current room temperature change rate k, room temperature change rate k = ΔT0 / t. According to the value of ΔT0, set the target outlet water temperature T 目标出水温度 The adjustment range is divided into different ranges, and the corresponding water temperature correction value ΔF is set according to the size of the k value in different adjustment ranges. 水温修正值 , for the target water outlet temperature T 目标出水温度 Make corrections so that T 目标出水温度 =T 当前出水温度 +ΔF 水温修正值 , so as to adjust the current room temperature so that the current room temperature approaches the target room temperature;

[0031] If not, shut down the heat pump system.

[0032] The interval time t0 can be set according to the requirements of room temperature control accuracy, generally not exceeding 60 seconds. The shorter the interval time is set, the higher the control accuracy.

[0033] In the process of implementing the present application, the inventors found that the existing technology often controls and adjusts the room temperature based on the current room temperature T室 The preset temperature T 设 The temperature difference ΔT0 between the two is used to set the water temperature correction value ΔF 水温修正值 For example, when ΔT0>1, set ΔF 水温修正值 =1, directly increase the outlet water temperature; when 1≥ΔT0>-1, set ΔF 水温修正值 =0, keep the outlet water temperature unchanged; when -1≥ΔT0, set ΔF 水温修正值 = -1, lower the outlet water temperature. This adjustment method is not accurate enough in controlling the room temperature. It only considers the room temperature at a certain moment, but does not consider the room temperature change rate at that moment. It may cause the room temperature to fluctuate, resulting in a large temperature difference between the actual room temperature and the preset temperature, and a low sense of comfort for the human body. At the same time, it may also cause the heat pump unit to start and stop frequently, resulting in high energy consumption.

[0034] The room temperature control method of this embodiment fully considers the size of the temperature difference ΔT0 and the size of the room temperature change rate k at the current room temperature to set the corresponding water temperature correction value ΔF 水温修正值 , set different water temperature correction values ​​ΔF under different conditions 水温修正值 , so that the current room temperature can be infinitely close to the target room temperature, and the current room temperature can be within the preset temperature T 设 The water temperature correction value can be set based on the interval time t0, the accuracy requirements of the room temperature control, and the current actual water outlet temperature.

[0035] When the temperature difference ΔT0 is greater than 0, it means that the current room temperature is low and needs to be heated. At this time, the room temperature needs to be controlled and adjusted by the heat pump system.

[0036] Specifically, the rate of change of the target room temperature can be increased as ΔT0 increases, and decreased as ΔT0 decreases. That is, when the temperature difference ΔT0 is large, the rate of change of the target room temperature is set to a large value, so that the current room temperature can change rapidly, thereby reducing the difference with the preset temperature T 设 When the temperature difference ΔT0 is small, the change rate of the target room temperature is kept at a small value, so that the current room temperature changes slowly and avoids excessive room temperature fluctuations due to excessive temperature change rate.

[0037] Specifically, in this embodiment, the target room temperature can satisfy the following curve segment equation: Among them, k1 is the minimum room temperature change rate set when the temperature difference ΔT0>2, and t1 is the set value from the current room temperature T 室Run to the preset temperature T 设 The time required. The curve segment is shown in the figure Figure 1 As shown, the horizontal axis t represents the operating time of the heat pump air conditioner, and the vertical axis T represents the target room temperature (°C). The purpose of the room temperature control method of this embodiment is to make the change of the current room temperature infinitely close to the target room temperature curve. 室 and preset temperature T 设 When the temperature difference ΔT0 is large, the temperature rises rapidly to the preset temperature T 设 Nearby, then at the preset temperature T 设 The k value can be calculated based on the derivative of the target room temperature curve at the corresponding point.

[0038] Specifically, in this embodiment, the target water outlet temperature T 目标出水温度 The adjustment range is divided into six adjustment levels, namely the first adjustment range, the second adjustment range, the third adjustment range, the fourth adjustment range, the fifth adjustment range and the sixth adjustment range.

[0039] In the first adjustment range, ΔT0>2, at this time, when k≤k1, make 1≤ΔF 水温修正值 ≤3; when k>k1, make ΔF 水温修正值 =0.

[0040] In the first adjustment range, the current room temperature is lower than the preset temperature and is in a situation of large temperature difference, so the room temperature needs to be increased quickly. At this time, if k≤k1, it means that the current room temperature change rate has not reached the minimum value of the target room temperature change rate corresponding to this stage, and cannot meet the rapid temperature increase requirements of the target room temperature curve. Therefore, the current outlet water temperature needs to be increased significantly. At this time, ΔF 水温修正值 For example, it can be set to 2. In this case, T 目标出水温度 =T 当前出水温度 +2. At this time, if k>k1, it means that the current room temperature change rate is within the specified range of the target room temperature change rate corresponding to this stage, and can meet the rapid heating requirement of the target room temperature curve. Therefore, the current water outlet temperature may not be changed at this time to avoid excessive heating. Within the first adjustment range, although the current room temperature is lower than the preset temperature, the present application does not blindly control the room temperature by increasing the water outlet temperature based on the temperature difference. Instead, it fully considers the change of the current room temperature. When the room temperature is in a rising state within the specified range, there is no need to increase the water outlet temperature, so as to avoid frequent starting and stopping of the compressor and large fluctuations in the room temperature.

[0041] In the second adjustment range, 2≥ΔT0>1, at this time, when k≥(k1+k2) / 2, make -2≤ΔF 水温修正值 <0; when (k1+k2) / 2>k>0, ΔF水温修正值 =0; when k≤0, make 2≥ΔF 水温修正值 >0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0042] In the second adjustment range, the current room temperature is still lower than the preset temperature, but the temperature difference is small, between 1°C and 2°C. The room temperature growth rate should not be too fast to avoid exceeding the preset temperature and causing a large fluctuation in the room temperature. At this time, if k≥(k1+k2) / 2, it means that the current room temperature change rate is large. In order to avoid exceeding the preset temperature, the current water outlet temperature can be cooled down. At this time, ΔF 水温修正值 For example, it can be set to -1, then T 目标出水温度 =T 当前出水温度 -1. At this time, if (k1+k2) / 2>k>0, it means that the current room temperature change rate can meet the temperature increase requirements of the target room temperature curve. Therefore, the current outlet water temperature can be left unchanged. At this time, if k≤0, it means that the current room temperature is decreasing and the current outlet water temperature needs to be increased. At this time, ΔF 水温修正值 For example, it can be set to 1, then T 目标出水温度 =T 当前出水温度 +1.

[0043] In the third adjustment range, 1≥ΔT0>0, at this time, when k≥k2 / 2, make -2≤ΔF 水温修正值 <0; when k2 / 2>k>0, ΔF 水温修正值 =0; when k≤0, make 2≥ΔF 水温修正值 >0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0044] In the third adjustment range, although the current room temperature is still lower than the preset temperature, it is close to the preset temperature, and excessive adjustment of the current outlet water temperature should be avoided. At this time, if k ≥ k2 / 2, it means that the room temperature change rate under the current outlet water temperature is too large, and the current outlet water temperature should be cooled down. At this time, ΔF 水温修正值 For example, it can be set to -1, then T 目标出水温度 =T 当前出水温度 -1. At this time, if k2 / 2>k>0, it means that the room temperature change rate under the current outlet water temperature can meet the requirements and the current outlet water temperature can be kept unchanged. At this time, if k≤0, it means that the current room temperature is decreasing and the current outlet water temperature needs to be increased. At this time, ΔF 水温修正值 For example, it can be set to 1, then T 目标出水温度 =T 当前出水温度 +1.

[0045] In the fourth adjustment range, 0≥ΔT0>-1, at this time, when k≤-k2 / 2, 2≤ΔF 水温修正值 <0; when -k2 / 2<k<0, ΔF 水温修正值 =0; when k≥0, make -2≤ΔF 水温修正值 <0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0046] In the fourth adjustment range, the control method is similar to that in the third adjustment range. The current room temperature in the third adjustment range is slightly lower than the preset temperature, and the current room temperature in the fourth adjustment range is slightly higher than the preset temperature, but the temperature difference is very small. In the fourth adjustment range, the current room temperature needs to be adjusted to be close to the target room temperature. At this time, if k≤-k2 / 2, it means that the current room temperature drops too fast under the current water outlet temperature condition, and the current water outlet temperature needs to be increased. At this time, ΔF 水温修正值 For example, it can be set to 1, then T 目标出水温度 =T 当前出水温度 +1. If -k2 / 2<k<0, it means that the target room temperature change rate can be met under the current outlet water temperature conditions, so the current outlet water temperature can be kept unchanged. If k≥0, it means that the current room temperature is on an upward trend (when k=0, the room temperature remains unchanged, but is still at the current higher temperature), and the current outlet water temperature needs to be lowered. At this time, ΔF 水温修正值 For example, it can be set to -1, then T 目标出水温度 =T 当前出水温度 -1.

[0047] In the fifth adjustment range, -1≥ΔT0>-2, at this time, when k≥0, make -2≤ΔF 水温修正值 <0; when k<0, make ΔF 水温修正值 =0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0048] In the fifth adjustment range, the current room temperature is higher than the preset temperature, but the temperature difference is small. At this time, if k ≥ 0, the current room temperature is on an upward trend (when k = 0, the room temperature remains unchanged, but is still at the current higher temperature), and the current outlet water temperature needs to be lowered. At this time, ΔF 水温修正值 For example, it can be set to -1, then T 目标出水温度 =T 当前出水温度 -1. If k < 0, it means that the current room temperature is on a downward trend, and the current outlet water temperature can be kept unchanged, that is, ΔF 水温修正值 is 0.

[0049] In the sixth adjustment range, ΔT0≤-2, at this time, when k≥0, make -3≤ΔF 水温修正值 ≤-1; when k<0, make ΔF水温修正值 =0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

[0050] In the sixth adjustment range, the current room temperature is higher than the preset temperature, and the temperature difference is large. If k ≥ 0, the current room temperature is still on an upward trend (when k = 0, the room temperature remains unchanged, but is still at the current higher temperature), and rapid cooling is required. At this time, ΔF 水温修正值 For example, it can be set to -2, then T 目标出水温度 =T 当前出水温度 -2. If k < 0, it means that the current room temperature is on a downward trend and the current outlet water temperature can be kept unchanged.

[0051] The control parameters of the room temperature control method of the embodiment of the present application are shown in the following table.

[0052]

[0053] The room temperature control method, storage medium and heat pump air conditioner provided in the embodiments of the present application divide the adjustment range of the target outlet water temperature and change the correction value of the outlet water temperature according to different judgment conditions, so that the heat pump system can promptly identify the actual situation of room temperature changes caused by various external factors, thereby giving a reasonable outlet water temperature, so that the room temperature can be accurately controlled within the set range, thereby improving the accuracy of room temperature control.

[0054] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0055] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A room temperature control method for a heat pump system, characterized in that: The following steps are involved: The current room temperature is detected at every interval t0, and the current room temperature detection value T is obtained. 室 , get the preset temperature T 设 And the current room temperature detection value T 室 The temperature difference ΔT0, ΔT0 = T 设 -T 室 , determine whether ΔT0 is greater than 0, If yes, the heat pump system is turned on, and the current room temperature change rate k is obtained. The target outlet water temperature T is set according to the value of ΔT0. 目标出水温度 The adjustment range is divided into different ranges, and the corresponding water temperature correction value ΔF is set according to the size of the k value in different adjustment ranges. 水温修正值 , for the target water outlet temperature T 目标出水温度 Make corrections so that T 目标出水温度 =T 当前出水温度 +ΔF 水温修正值 , so as to adjust the current room temperature so that the current room temperature approaches the target room temperature; If not, the heat pump system is turned off.

2. The room temperature control method according to claim 1, characterized in that: The change rate of the target room temperature increases as ΔT0 increases, and decreases as ΔT0 decreases.

3. The room temperature control method according to claim 2, characterized in that: The target room temperature satisfies the following curve segment equation: Among them, k1 is the minimum room temperature change rate set when the temperature difference ΔT0>2, and t1 is the set value from the current room temperature T 室 Run to the preset temperature T 设 The time required.

4. The room temperature control method according to claim 3, characterized in that: The target water outlet temperature T 目标出水温度 The adjustment range includes the first adjustment range, at this time ΔT0>2, in the first adjustment range, when k≤k1, make 1≤ΔF 水温修正值 ≤3; when k>k1, make ΔF 水温修正值 =0.

5. The room temperature control method according to claim 3, characterized in that: The target water outlet temperature T 目标出水温度 The adjustment range includes the second adjustment range, at this time 2≥ΔT0>1, in the second adjustment range, when k≥(k1+k2) / 2, make -2≤ΔF 水温修正值 <0; when (k1+k2) / 2>k>0, ΔF 水温修正值 =0; when k≤0, make 2≥ΔF 水温修正值 >0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

6. The room temperature control method according to claim 3, characterized in that: The target water outlet temperature T 目标出水温度 The adjustment range includes a third adjustment range, where 1≥ΔT0>0. Within the third adjustment range, when k≥k2 / 2, -2≤ΔF 水温修正值 <0; when k2 / 2>k>0, ΔF 水温修正值 =0; when k≤0, make 2≥ΔF 水温修正值 >0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

7. The room temperature control method according to claim 3, characterized in that: The target water outlet temperature T 目标出水温度 The adjustment range includes a fourth adjustment range, where 0 ≥ ΔT0 > -1. Within the fourth adjustment range, when k ≤ -k2 / 2, 2 ≤ ΔF 水温修正值 <0; when -k2 / 2<k<0, ΔF 水温修正值 =0; when k≥0, make -2≤ΔF 水温修正值 <0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

8. The room temperature control method according to claim 3, characterized in that: The target water outlet temperature T 目标出水温度 The adjustment range includes the fifth adjustment range, at this time -1≥ΔT0>-2, in the fifth adjustment range, when k≥0, make -2≤ΔF 水温修正值 <0; When k<0, ΔF 水温修正值 =0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

9. The room temperature control method according to claim 3, characterized in that: The target water outlet temperature T 目标出水温度 The adjustment range includes the sixth adjustment range, at this time ΔT0≤-2, in the sixth adjustment range, when k≥0, make -3≤ΔF 水温修正值 ≤-1; When k<0, ΔF 水温修正值 =0; k2 is the target room temperature T 设 The slope of the target room temperature curve segment at -1.

10. A storage medium, characterized in that: The storage medium stores a room temperature control program, and when the room temperature control program is executed by the processor, the room temperature control method according to any one of claims 1 to 8 is implemented.

11. A heat pump air conditioner, characterized in that: The method comprises a memory and a processor, wherein the memory stores a room temperature control program, and when the room temperature control program is executed by the processor, the room temperature control method according to any one of claims 1 to 8 is implemented.

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