A water temperature controlled multi-link

Abstract

The present invention relates to a water temperature control type multi-split machine, comprising a floor heating module, a floor heating module temperature acquisition module, an outdoor environment temperature acquisition module and a control module, wherein the floor heating module temperature acquisition module is used to acquire the current temperature of the floor heating module; the outdoor environment temperature acquisition module is used to acquire the outdoor environment temperature at a future time; the control module is used to determine the set water temperature of the floor heating module according to the outdoor environment temperature at a future time, and is used to control the multi-split machine according to the set water temperature of the floor heating module and the current temperature of the floor heating module. The present invention adjusts the set water temperature of the floor heating module in advance according to the outdoor environment temperature at a future time, timely adjusts the set water temperature according to the change of the outdoor environment temperature at a future time and reflects it in real time in the room temperature control, which can allow users to enjoy a comfortable indoor temperature without feeling it, without the need to bother to adjust the set water temperature; on the other hand, it can also achieve energy saving and emission reduction of the multi-split machine and avoid energy waste.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-split units, and in particular to a water temperature controlled multi-split unit. Background Art

[0002] At present, for room temperature control multi-split units, there are integrated water temperature control type and split water temperature control type. When using the floor heating mode, the user needs to make corresponding settings on the water temperature controller side: start, floor heating mode, target water outlet temperature, and also needs to set on the room temperature controller under each room: start, floor heating mode, target room temperature. The actual unit operation is based on the target water outlet temperature / target room temperature first, and then enters the standby state. At the same time, the general water temperature controller will be installed in the equipment room or other uncommon places according to the installation location of the outdoor unit / water module. Users generally do not change the temperature setting of the floor heating module throughout the heating season, that is, the set water temperature of the floor heating module remains unchanged. However, when the temperature changes within a day, or within a period of time (such as after the temperature rises, late spring cold, etc.), the user cannot adjust the set water temperature in time. The most critical thing is that the user cannot accurately adjust the set water temperature of the floor heating module to adapt to the changes in the outdoor ambient temperature, so that the multi-split unit is most energy-saving and maintains a comfortable indoor ambient temperature. Furthermore, even after the user has adjusted the water outlet temperature setting, considering the speed of water circulation, the actual room temperature control will still have a lag adjustment problem.

[0003] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The present invention provides a water temperature controlled multi-split unit, which solves the technical problem in the prior art that users of the water temperature controlled multi-split unit are inconvenient or unable to accurately adjust the water outlet temperature of the floor heating module, and even after adjusting the water outlet temperature, there is still a lagging adjustment of the actual room temperature.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] A water temperature controlled multi-split system, comprising a floor heating module, the multi-split system further comprising:

[0007] A floor heating module temperature acquisition module, used to acquire the current temperature of the floor heating module;

[0008] The outdoor environment temperature acquisition module is used to obtain the outdoor environment temperature at a future time;

[0009] A control module is used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at the future time, and to control the multi-split system according to the set water temperature of the floor heating module and the current temperature of the floor heating module.

[0010] In some embodiments of the present application, the outdoor environment temperature acquisition module acquires the outdoor environment temperature at a future time through a weather forecast.

[0011] In some embodiments of the present application, the outdoor environment temperature acquisition module is used to acquire the outdoor environment temperature at a future time T, and the control module is used to determine the set water temperature of the floor heating module according to the outdoor environment temperature at the future time T. Since the floor heating temperature changes relatively slowly, the set water temperature corresponding to the outdoor environment temperature corresponding to the time can be reached at the future time T, and the set water temperature is the comfortable water temperature corresponding to the outdoor environment temperature at the future time T.

[0012] In some embodiments of the present application, the control module is used to determine that the set water temperature of the floor heating module is Y2 when the outdoor ambient temperature at the future time T is lower than X1; to determine that the set water temperature of the floor heating module is Y1 when the outdoor ambient temperature at the future time T is higher than X2; and to determine that the set water temperature of the floor heating module is between Y1-Y2 when the outdoor ambient temperature at the future time T is between X1-X2, wherein X1<X2, Y1<Y2.

[0013] In some embodiments of the present application, when the outdoor ambient temperature at the future time T is between X1 and X2, the set water temperature of the floor heating module is linearly correlated with the outdoor ambient temperature.

[0014] In some embodiments of the present application, the control module is used to re-determine the set water temperature of the floor heating module every second set time T2, so that the set water temperature of the floor heating module is adjusted with the adjustment of the outdoor ambient temperature, ensuring that the set water temperature is always a comfortable water temperature corresponding to the outdoor ambient temperature.

[0015] In some embodiments of the present application, the control module is used to obtain the time t required for the current indoor ambient temperature to reach the set indoor ambient temperature, the outdoor ambient temperature acquisition module is used to obtain the outdoor ambient temperature at the future time T+t, and the control module is used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at the future time T+t. Since the time required for the room temperature change is taken into account, the temperature adjustment is more accurate and meets the user's comfort requirements.

[0016] In some embodiments of the present application, several time periods in a day are taken as target time periods, and the control module is used to calculate the average temperature of the outdoor ambient temperature for the remaining time of the current target time period when the current target time period is more than the third set time T3 away from the next target time period, and determine the set water temperature of the floor heating module according to the average temperature; the control module is used to calculate the average temperature of the outdoor ambient temperature for the next target time period when the current target time period is less than the third set time T3 away from the next target time period, and determine the set water temperature of the floor heating module according to the average temperature, so as to identify the temperature changes in the transition seasons and accurately set the water temperature adjustment

[0017] In some embodiments of the present application, the control module is used to determine that the set water temperature of the floor heating module is Y2 when the average temperature is lower than X1; to determine that the set water temperature of the floor heating module is Y1 when the average temperature is higher than X2; and to determine that the set water temperature of the floor heating module is between Y1-Y2 when the average temperature is between X1-X2, wherein X1<X2, Y1<Y2.

[0018] In some embodiments of the present application, when the average temperature is between X1 and X2, the set water temperature of the floor heating module is linearly correlated with the outdoor ambient temperature.

[0019] In some embodiments of the present application, the target time period includes a daytime period, a noontime period and an evening period, and the control module is used to classify the noontime period into the daytime period on a cloudy day.

[0020] The technical solution of the present invention has the following technical effects relative to the prior art: the water temperature control type multi-split system of the present invention includes a floor heating module, a floor heating module temperature acquisition module, an outdoor environment temperature acquisition module and a control module, the floor heating module temperature acquisition module is used to acquire the current temperature of the floor heating module; the outdoor environment temperature acquisition module is used to acquire the outdoor environment temperature at a future time; the control module is used to determine the set water temperature of the floor heating module according to the outdoor environment temperature at a future time, and is used to control the multi-split system according to the set water temperature of the floor heating module and the current temperature of the floor heating module. The present invention adjusts the set water temperature of the floor heating module in advance according to the outdoor environment temperature at a future time, adjusts the set water temperature in time according to the change of the outdoor environment temperature at a future time and reflects it in real time in the room temperature control, so that the current temperature of the floor heating module can be adapted to the outdoor environment temperature when the future time is reached, which can allow users to enjoy a comfortable indoor temperature without feeling it, without the need to bother to adjust the set water temperature; on the other hand, it can also achieve energy saving and emission reduction of the multi-split system and avoid energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of an integrated water temperature controlled multi-split system.

[0023] Figure 2 This is a schematic diagram of a split-type water temperature control multi-split system.

[0024] Figure 3 It is a principle block diagram of a specific embodiment of the present invention.

[0025] Figure 4 It is a relationship diagram between the outdoor ambient temperature and the set water temperature at the future time T according to a specific embodiment of the present invention.

[0026] Figure 5 It is a control flow chart of a specific embodiment of the present invention.

[0027] Figure 6 It is a principle block diagram of another specific embodiment of the present invention.

[0028] Figure 7 This is a control flow chart of another specific embodiment of the present invention.

[0029] Figure 8 It is a schematic diagram of a target time period according to a specific embodiment of the present invention.

[0030] Fig. 9 Graph showing the relationship between the average temperature and the set water temperature in a specific embodiment of the present invention.

[0031] Fig.10 This is a control flow chart of another specific embodiment of the present invention. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected 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.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0038] In the present application, the water temperature control type multi-split system performs the refrigeration cycle of the water temperature control type multi-split system by using a compressor, a condenser, a throttling device and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation to cool or heat the indoor space. In the water temperature control type multi-split system including the floor heating module, the indoor space is mainly heated by the floor heating module, and the water in the floor heating module absorbs the heat generated by the condenser to provide heat to the indoor space.

[0039] The low-temperature and low-pressure refrigerant enters the compressor, which compresses it into high-temperature and high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process, or, it provides heat to the floor heating module.

[0040] The throttling device expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the throttling device and returns the low-temperature and low-pressure refrigerant gas to the compressor. The evaporator can achieve a cooling effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. Throughout the cycle, the water temperature control type multi-split unit can adjust the temperature of the indoor space.

[0041] The outdoor unit of the water temperature control type multi-split system refers to the part of the refrigeration cycle including the compressor and the outdoor heat exchanger, the indoor unit of the water temperature control type multi-split system includes the indoor heat exchanger and the floor heating module, and the throttling device can be provided in the indoor unit or the outdoor unit.

[0042] In some embodiments, Figure 1 As shown, the water module that realizes water circulation with the floor heating module can be located in the outdoor unit and is designed as an integral unit with the outdoor unit, which is an integral water temperature controlled multi-split unit.

[0043] In some embodiments, Figure 2 As shown, the water module that realizes water circulation with the floor heating module is a separate device, which is a split-type water temperature control multi-split unit.

[0044] The water module receives the heat generated by the condenser, and the heat from the condenser heats the water in the water module. The water receiving the heat from the condenser circulates between the water module and the floor heating module, and releases heat to the room through the floor heating module.

[0045] The indoor heat exchanger and the outdoor heat exchanger are used as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the water temperature control type multi-split unit is used as a heater in the heating state, and when the indoor heat exchanger is used as an evaporator, the water temperature control type multi-split unit is used as a cooler in the cooling state.

[0046] like Figure 1 , 2 As shown, when the user uses the floor heating mode, the user needs to make corresponding settings on the water temperature controller side: power on, floor heating mode, target water outlet temperature, and at the same time, the room temperature controller under each room needs to be set: power on, floor heating mode, target room temperature. The actual unit operation is based on the target water outlet temperature / target room temperature first, and then enters the standby state. At the same time, the general water temperature controller will be installed in the equipment room or other uncommon places according to the installation location of the outdoor unit / water module. Users generally do not change the water outlet temperature setting of the floor heating module throughout the heating season, that is, the set water temperature of the floor heating module remains unchanged. However, when the temperature changes within a day, or within a period of time (such as after the temperature rises, late spring cold, etc.), the user cannot adjust the water outlet temperature setting in time. The most critical thing is that the user cannot accurately adjust the set water temperature of the floor heating module to adapt to the changes in the outdoor ambient temperature, so that the multi-split unit is most energy-saving and maintains a comfortable indoor ambient temperature. Moreover, even after the user adjusts the water outlet temperature setting, considering the speed of water circulation, the actual room temperature control will still have the problem of lagging adjustment.

[0047] In order to solve the above problems, the present application adjusts the set water temperature of the floor heating module in advance according to the outdoor ambient temperature in the future, and timely adjusts the set water temperature according to the changes in the outdoor ambient temperature in the future and reflects it in real time in the room temperature control. When the future time is reached, the current temperature of the floor heating module can be adapted to the outdoor ambient temperature. On the one hand, it allows users to enjoy a comfortable indoor temperature without having to bother adjusting the set water temperature; on the other hand, it can also achieve multi-connected energy saving and emission reduction and avoid energy waste.

[0048] The following is a detailed description through three specific embodiments:

[0049] Example 1

[0050] like Figure 3 As shown, the water temperature control type multi-split system of this embodiment includes a floor heating module, a floor heating module temperature acquisition module, an outdoor environment temperature acquisition module and a control module. The following is a detailed description of each module:

[0051] The floor heating module is used to release heat into the room to increase the indoor ambient temperature.

[0052] The floor heating module temperature acquisition module is used to obtain the current temperature of the floor heating module.

[0053] In some embodiments, the floor heating module temperature acquisition module includes a temperature sensor disposed on the floor heating module, which is used to detect the temperature of the floor heating module, which is the current water temperature of the floor heating module. In some embodiments, it is the water inlet temperature of the floor heating module.

[0054] The outdoor environment temperature acquisition module is used to obtain the outdoor environment temperature at a future time.

[0055] In some embodiments, the outdoor environment temperature acquisition module acquires the outdoor environment temperature at a future time through a weather forecast.

[0056] In some embodiments, the future time is the future T time, which is a determined time point (moment) in the future, and is the time point at which the current time is T time. For example, T time is 2 hours, and the future T time is the time point at which the current time is 2 hours.

[0057] In some embodiments, the T time may be the time T required to heat the current temperature of the floor heating module to the set water temperature corresponding to the outdoor ambient temperature corresponding to the time point of the future T time when the multi-split system is running in a certain state.

[0058] In some embodiments, the future T time may be determined in advance through experiments and stored in the storage module.

[0059] The control module is used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at a future time, and to control the multi-split unit according to the set water temperature of the floor heating module and the current temperature of the floor heating module so that the floor heating module reaches the set water temperature of the floor heating module when the temperature reaches the future time.

[0060] In some embodiments of the present application, the outdoor environment temperature acquisition module is used to acquire the outdoor environment temperature at a future time T, and the control module is used to determine the set water temperature of the floor heating module according to the outdoor environment temperature at the future time T. Since the floor heating temperature changes relatively slowly, the set water temperature corresponding to the outdoor environment temperature corresponding to the time can be reached at the future time T, and the set water temperature is the comfortable water temperature corresponding to the outdoor environment temperature at the future time T.

[0061] In some embodiments of the present application, Figure 4 As shown, the control module is used to determine that the set water temperature is Y2 when the outdoor ambient temperature at the future time T is lower than X1; to determine that the set water temperature is Y1 when the outdoor ambient temperature at the future time T is higher than X2; and to determine that the set water temperature is between Y1-Y2 when the outdoor ambient temperature at the future time T is between X1-X2, wherein X1<X2, Y1<Y2.

[0062] In some embodiments of the present application, when the outdoor ambient temperature at the future time T is between X1 and X2, the water temperature is set to be linearly correlated with the outdoor ambient temperature.

[0063] In some embodiments of the present application, the control module is used to re-determine the set water temperature of the floor heating module every second set time T2, so that the set water temperature of the floor heating module is adjusted with the adjustment of the outdoor ambient temperature, ensuring that the set water temperature is always a comfortable water temperature corresponding to the outdoor ambient temperature.

[0064] In some embodiments, the second set time T2 is a certain time, such as 1 hour.

[0065] In some embodiments, the second set time T2 is adjusted according to fluctuations in outdoor ambient temperature.

[0066] In some embodiments, the second set time T2 is negatively correlated with the fluctuation of the outdoor ambient temperature. The greater the fluctuation of the outdoor ambient temperature, the smaller the second set time T2, and the smaller the fluctuation of the outdoor ambient temperature, the larger the second set time T2. For example, in the early morning to noon and noon to evening periods, the outdoor ambient temperature fluctuates greatly. At this time, the second set time T2 can be shortened. In the evening period, the outdoor ambient temperature fluctuates less and the second set time T2 can be extended. In a certain period of time, when the outdoor ambient temperature does not fluctuate, it is not necessary to redetermine the set water temperature of the floor heating module until the set water temperature of the floor heating module is redetermined T time before the outdoor ambient temperature fluctuates, so as to reduce the calculation amount of the control module.

[0067] In some embodiments, the water temperature controlled multi-split system is mainly used to adjust the water temperature in response to changes in temperature during a day. How to adjust the set water temperature of the floor heating module in time according to changes in the outdoor ambient temperature and reflect it in real time in the control of the indoor temperature is the content to be solved in this embodiment.

[0068] Specifically, according to the weather forecast of the day, at the current time, the water temperature of the floor heating module is adjusted according to the set water temperature determined by the outdoor ambient temperature at the future time T. The specific adjustment relationship is as follows Figure 4 The variable water temperature adjustment shown. When the outdoor ambient temperature is lower than X1, the water temperature is set to Y2; when the outdoor ambient temperature changes between X1 and X2, the water temperature is linearly adjusted between Y1 and Y2, once every second set time T2; when the outdoor ambient temperature is higher than X2, the water temperature is set to Y1.

[0069] For example, at 10:00 a.m., the outdoor temperature at 12:00 in the weather forecast corresponds to Figure 4 The variable water temperature control in the system implements the set water temperature. Since the floor heating temperature changes slowly, the set water temperature corresponding to the outdoor ambient temperature at 12 o'clock can be reached around 12 o'clock, and the corresponding room temperature can be felt, so that the room temperature reaches a comfortable temperature and does not overheat, causing discomfort and energy waste.

[0070] like Figure 5 As shown, the control method of the water temperature control type multi-split system in this embodiment includes the following steps:

[0071] S1. Start.

[0072] S2. Obtain the set water temperature, the set room temperature, the current temperature of the floor heating module and the current room temperature.

[0073] S3, control multi-connection operation.

[0074] S4. Obtain the outdoor ambient temperature at a future time T.

[0075] S5. Determine the set water temperature of the floor heating module according to the outdoor ambient temperature at time T in the future.

[0076] S6. Control the multi-connection operation according to the re-determined set water temperature.

[0077] S7, re-determine whether the time for setting the water temperature reaches the second set time T2, if so, go to step S4, otherwise, go to step S6.

[0078] Among them, controlling the operation of the multi-split system generally means controlling the operation of the compressor, and when the set water temperature / set room temperature is reached, it enters the standby state.

[0079] Example 2

[0080] In order to more accurately control the indoor ambient temperature, in some embodiments, the control module is used to obtain the time t required for the current indoor ambient temperature to reach the set indoor ambient temperature, the outdoor ambient temperature acquisition module is used to obtain the outdoor ambient temperature at the future time T+t, and the control module is used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at the future time T+t. Since the time required for the room temperature change is taken into account, the temperature adjustment is more accurate and meets the user's comfort requirements.

[0081] like Figure 6 As shown, the water temperature control type multi-split system of this embodiment includes a floor heating module, a floor heating module temperature acquisition module, an outdoor environment temperature acquisition module, a storage module and a control module. The following is a detailed description of each module:

[0082] The floor heating module is used to release heat into the room to increase the indoor ambient temperature.

[0083] The floor heating module temperature acquisition module is used to obtain the current temperature of the floor heating module.

[0084] In some embodiments, the floor heating module temperature acquisition module includes a temperature sensor disposed on the floor heating module, which is used to detect the temperature of the floor heating module, which is the current water temperature of the floor heating module. In some embodiments, it is the water inlet temperature of the floor heating module.

[0085] The outdoor ambient temperature acquisition module is used to obtain the outdoor ambient temperature at the future T+t time.

[0086] In some embodiments, the outdoor environment temperature acquisition module acquires the outdoor environment temperature at a future time through a weather forecast.

[0087] In some embodiments, the future time is the future T+t time, which is a determined time point (moment) in the future, and is the time point at which the current time is T+t time.

[0088] Wherein, T is a certain time, for example, 2 hours.

[0089] In some embodiments, T may be the time T required to heat the current temperature of the floor heating module to the set water temperature corresponding to the outdoor ambient temperature corresponding to the time point at T time in the future when the multi-split system is running in a certain state.

[0090] In some embodiments, the future T time may be determined in advance through experiments and stored in the storage module.

[0091] In some embodiments, the future time t is the time when the actual room temperature reaches the set room temperature, which can be calculated in real time using a calculation formula.

[0092] The time t for the actual room temperature to reach the set room temperature is calculated by comprehensively considering factors such as the outdoor unit capacity C (hot water production capacity), the floor heating room load (at least one of the room area, set room temperature, actual room temperature and heat exchange), specifically:

[0093] (1) Define the room load factor K. The storage module is used to store the room load factor K.

[0094] The room meets the factor K which is highly correlated with light, indoor and outdoor heat exchange, and room area, so during the heating season:

[0095] ① Group according to outdoor ambient temperature (e.g. -15~15℃, group every 3℃).

[0096] ② Grouping according to the whole day time period (daytime: 7:00 am - 8:00 pm, grouping every 2 hours during the day; nighttime: 8:00 pm - 7:00 am the next day, as a group).

[0097] (Note: The above temperature and time period grouping is not limited to the above examples. It can also be grouped according to the detailed information returned by the weather forecast, such as room temperature, weather conditions (sunny, cloudy, etc.))

[0098] The storage module stores K values ​​corresponding to different outdoor ambient temperatures and different time periods.

[0099] For example, the information stored in the storage module is shown in the following table:

[0100] Outdoor ambient temperature range 1 Outdoor ambient temperature range 2 Outdoor ambient temperature range 3 Period 1 K11 K12 K13 Period 2 K21 K22 K23 Period 3 K31 K32 K33

[0101] The K value is obtained according to the outdoor ambient temperature interval to which the current outdoor ambient temperature belongs and the time period to which the current time belongs.

[0102] According to the K value, through the formula K=C / [(T 设定 -T 室内 ) / t] calculates the time t required for the current indoor temperature to reach the target temperature. Among them, T 设定 To set the room temperature, T 室内 is the current room temperature.

[0103] In some embodiments, the control modules are used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at a future time T+t.

[0104] The control module is used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at the future time T+t, and to control the multi-split unit according to the set water temperature of the floor heating module and the current temperature of the floor heating module so that the floor heating module reaches the set water temperature of the floor heating module when the temperature reaches the future time.

[0105] In some embodiments, the control module is used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at T time in the future when it is first run, and then determine the set water temperature of the floor heating module according to the outdoor ambient temperature at T+t time in the future.

[0106] In some embodiments of the present application, the outdoor environment temperature acquisition module is used to acquire the outdoor environment temperature at the future time T+t, and the control module is used to determine the set water temperature of the floor heating module according to the outdoor environment temperature at the future time T+t. Since the floor heating temperature changes relatively slowly, the set water temperature corresponding to the outdoor environment temperature corresponding to the time can be reached at the future time T+t, and the set water temperature is the comfortable water temperature corresponding to the outdoor environment temperature at the future time T+t.

[0107] In some embodiments of the present application, Figure 4 As shown, the control module is used to determine that the set water temperature is Y2 when the outdoor ambient temperature at the future time T is lower than X1; to determine that the set water temperature is Y1 when the outdoor ambient temperature at the future time T is higher than X2; and to determine that the set water temperature is between Y1-Y2 when the outdoor ambient temperature at the future time T is between X1-X2, wherein X1<X2, Y1<Y2.

[0108] In some embodiments of the present application, when the outdoor ambient temperature at the future time T is between X1 and X2, the water temperature is set to be linearly correlated with the outdoor ambient temperature.

[0109] In some embodiments of the present application, the control module is used to re-determine the set water temperature of the floor heating module every second set time T2, so that the set water temperature of the floor heating module is adjusted with the adjustment of the outdoor ambient temperature, ensuring that the set water temperature is always a comfortable water temperature corresponding to the outdoor ambient temperature.

[0110] In some embodiments, the second set time T2 is a certain time, such as 1 hour.

[0111] In some embodiments, the second set time T2 is adjusted according to fluctuations in outdoor ambient temperature.

[0112] In some embodiments, the second set time T2 is negatively correlated with the fluctuation of the outdoor ambient temperature. The greater the fluctuation of the outdoor ambient temperature, the smaller the second set time T2, and the smaller the fluctuation of the outdoor ambient temperature, the larger the second set time T2. For example, in the early morning to noon and noon to evening periods, the outdoor ambient temperature fluctuates greatly. At this time, the second set time T2 can be shortened. In the evening period, the outdoor ambient temperature fluctuates less and the second set time T2 can be extended. In a certain period of time, when the outdoor ambient temperature does not fluctuate, it is not necessary to redetermine the set water temperature of the floor heating module until the set water temperature of the floor heating module is redetermined T time before the outdoor ambient temperature fluctuates, so as to reduce the calculation amount of the control module.

[0113] In some embodiments, the water temperature controlled multi-split system is mainly used to adjust the water temperature in response to changes in temperature during a day. How to adjust the set water temperature of the floor heating module in time according to changes in the outdoor ambient temperature and reflect it in real time in the control of the indoor temperature is the content to be solved in this embodiment.

[0114] Specifically, according to the weather forecast for the day, at the current time, the water temperature of the floor heating module is adjusted according to the set water temperature determined by the outdoor ambient temperature at the future time T+t. The specific adjustment relationship is as follows Figure 4 The variable water temperature adjustment shown. When the outdoor ambient temperature is lower than X1, the water temperature is set to Y2; when the outdoor ambient temperature changes between X1 and X2, the water temperature is linearly adjusted between Y1 and Y2, once every second set time T2; when the outdoor ambient temperature is higher than X2, the water temperature is set to Y1.

[0115] For example, at 10:00 a.m., the outdoor temperature at 12:00 in the weather forecast corresponds to Figure 4 The variable water temperature control in the system implements the set water temperature. Since the floor heating temperature changes slowly, the set water temperature corresponding to the outdoor ambient temperature at 12 o'clock can be reached around 12 o'clock, and the corresponding room temperature can be felt, so that the room temperature reaches a comfortable temperature and does not overheat, causing discomfort and energy waste.

[0116] like Figure 7 As shown, the control method of the water temperature control type multi-split system in this embodiment includes the following steps:

[0117] S1. Start.

[0118] S2. Obtain the set water temperature, the set room temperature, the current temperature of the floor heating module and the current room temperature.

[0119] S3, control multi-connection operation.

[0120] S4. Calculate the time t when the actual room temperature reaches the set room temperature.

[0121] According to the outdoor ambient temperature interval to which the current outdoor ambient temperature belongs and the time period to which the current time belongs, the K value is obtained from the storage module, and the time t is calculated according to the K value.

[0122] S5. Obtain the outdoor ambient temperature at the future time T+t.

[0123] S6. Determine the set water temperature of the floor heating module according to the outdoor ambient temperature at the future time T+t.

[0124] S7. Control the multi-connection operation according to the re-determined set water temperature.

[0125] S8. Re-determine whether the time for setting the water temperature reaches the second set time T2. If so, proceed to step S5; otherwise, proceed to step S7.

[0126] Among them, controlling the operation of the multi-split system generally means controlling the operation of the compressor, and when the set water temperature / set room temperature is reached, it enters the standby state.

[0127] Example 3

[0128] Taking several time periods in a day as target time periods, the control module is used to calculate the average temperature of the outdoor ambient temperature for the remaining time of the current target time period when the current target time period is more than the third set time T3 away from the next target time period, and determine the set water temperature of the floor heating module according to the average temperature; the control module is used to calculate the average temperature of the outdoor ambient temperature for the next target time period when the current target time period is less than the third set time T3 away from the next target time period, and determine the set water temperature of the floor heating module according to the average temperature, so as to identify the temperature changes in the transition seasons and accurately set the water temperature adjustment.

[0129] In some embodiments of the present application, the future time refers to the remaining time of the current target period or the time of the next target period.

[0130] In some embodiments of the present application, Fig. 9As shown, the control module is used to determine that the set water temperature is Y2 when the average temperature is lower than X1; to determine that the set water temperature is Y1 when the average temperature is higher than X2; and to determine that the set water temperature is between Y1 and Y2 when the average temperature is between X1 and X2, wherein X1 < X2 and Y1 < Y2.

[0131] In some embodiments of the present application, when the average temperature is between X1 and X2, the set water temperature is linearly correlated with the outdoor ambient temperature.

[0132] In some embodiments of the present application, the target time period includes a daytime period, a noontime period, and an evening period, and the control module is used to classify the noontime period into the daytime period on a cloudy day.

[0133] The problem to be solved by this embodiment is how to identify the temperature changes in the transition seasons and adjust the water temperature accurately.

[0134] In some embodiments, three-stage control is implemented according to the daytime period (non-noon period), nighttime period, and noon period.

[0135] Specifically, in the first calculation, the water temperature is set by default, and the user can customize it. If it is in the current period and the time from the next period is greater than the third set time T3, the average temperature of the outdoor environment temperature for the remaining time of the current period is calculated according to Fig. 9 Curve to implement variable water temperature control; if the next period is less than the third set time T3, the average temperature of the outdoor ambient temperature in the next period is calculated, according to Fig. 9 Implement variable water temperature control. After one cycle (one day) of control is completed, the average temperature of the current period can be compared with the average temperature of the current period of the previous period in subsequent cycles, and water temperature control can be implemented according to the difference.

[0136] like Figure 8 As shown, the definition of the three time periods can be as follows: daytime (non-noon): 07:00-10:00 & 16:00-19:00; noon: 10:00-16:00; night: 19:00-07:00 the next day. It can also be set according to the weather conditions in the weather forecast. For example, on a sunny day, the three time periods can be defined as described above. On a cloudy day, noon is included in the daytime (non-noon) period, and the day is controlled according to daytime and nighttime. The start time of the daytime (non-noon) and nighttime periods can also be determined according to the sunrise time and sunset time in the weather information.

[0137] like Fig.10 As shown, the control method of the water temperature control type multi-split system in this embodiment includes the following steps:

[0138] S1. Start.

[0139] S2. Obtain the set water temperature, the set room temperature, the current temperature of the floor heating module and the current room temperature.

[0140] S3, control multi-connection operation.

[0141] S4. Get the current time.

[0142] S5: Is it the first cycle of calculation? If so, go to step S6; otherwise, go to step S10.

[0143] S6. Default setting of water temperature.

[0144] S7. If the time to the next period is greater than the third set time T3, then go to step S8; otherwise, go to step S9.

[0145] S8. Calculate the average temperature of the outdoor environment temperature for the remaining time of the current period, and obtain the set water temperature according to the average temperature.

[0146] S9, calculating the average temperature of the outdoor environment temperature in the next period, and obtaining the set water temperature according to the average temperature.

[0147] S10, the third set time T3 before each period starts is compared with the average temperature of the same period in the previous cycle, and the set water temperature is determined according to the change trend of the average temperature.

[0148] Among them, controlling the operation of the multi-split system generally means controlling the operation of the compressor, and when the set water temperature / set room temperature is reached, it enters the standby state.

[0149] Among them, embodiments 1 and 2 can be scene 1, and embodiment 3 can be scene 2. The settings of scene 1 and scene 2 are set on the user operation end, and you can choose to turn on one of them or both. When both are turned on at the same time, you can first control according to scene 1, and then you can synchronously cover scene 2.

[0150] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A water temperature controlled multi-split system, comprising a floor heating module, characterized in that: The multi-connection also includes: A floor heating module temperature acquisition module, used to acquire the current temperature of the floor heating module; The outdoor environment temperature acquisition module is used to obtain the outdoor environment temperature at a future time; A control module, used to determine the set water temperature of the floor heating module according to the outdoor ambient temperature at the future time, and to control the multi-split system according to the set water temperature of the floor heating module and the current temperature of the floor heating module; Set certain times of the day as target times; The multi-split system includes scenario one: the control module is used to calculate the average temperature of the outdoor ambient temperature for the remaining time of the current target period when the current target period is more than the third set time T3 away from the next target period, and determine the set water temperature of the floor heating module according to the average temperature; the control module is used to calculate the average temperature of the outdoor ambient temperature for the next target period when the current target period is less than the third set time T3 away from the next target period, and determine the set water temperature of the floor heating module according to the average temperature.

2. The water temperature controlled multi-split unit according to claim 1, characterized in that: The multi-split system includes scenario 2: the outdoor environment temperature acquisition module is used to acquire the outdoor environment temperature at a future time T, and the control module is used to determine the set water temperature of the floor heating module according to the outdoor environment temperature at a future time T; The scene one and the scene two are set to be turned on at the same time or one of them is selected to be turned on. When they are turned on at the same time, the scene two is run first and then the scene one.

3. The water temperature controlled multi-split system according to claim 2, characterized in that: The control module is used to determine that the set water temperature of the floor heating module is Y2 when the outdoor ambient temperature at T time in the future is lower than X1; to determine that the set water temperature of the floor heating module is Y1 when the outdoor ambient temperature at T time in the future is higher than X2; and to determine that the set water temperature of the floor heating module is between Y1-Y2 when the outdoor ambient temperature at T time in the future is between X1-X2, wherein X1<X2, Y1<Y2.

4. The water temperature controlled multi-split system according to claim 3, characterized in that: When the outdoor ambient temperature at time T in the future is between X1 and X2, the set water temperature of the floor heating module is linearly correlated with the outdoor ambient temperature.

5. The water temperature controlled multi-split system according to claim 1, characterized in that: The control module is used to re-determine the set water temperature of the floor heating module every second set time T2.

6. The water temperature controlled multi-split unit according to any one of claims 2 to 5, characterized in that: The control module is used to obtain the time t required for the current indoor ambient temperature to reach the set indoor ambient temperature, the outdoor ambient temperature acquisition module is used to obtain the outdoor ambient temperature at the future T+t time, and the control module is used to determine the set water temperature of the floor heating module based on the outdoor ambient temperature at the future T+t time.

7. The water temperature controlled multi-split unit according to claim 1, characterized in that: The control module is used to determine that the set water temperature of the floor heating module is Y2 when the average temperature is lower than X1; to determine that the set water temperature of the floor heating module is Y1 when the average temperature is higher than X2; and to determine that the set water temperature of the floor heating module is between Y1 and Y2 when the average temperature is between X1 and X2, wherein X1<X2, Y1<Y2.

8. The water temperature controlled multi-split system according to claim 7, characterized in that: When the average temperature is between X1 and X2, the set water temperature of the floor heating module is linearly correlated with the outdoor ambient temperature.

9. The water temperature controlled multi-split system according to claim 1, characterized in that: The target time period includes a daytime period, a noontime period and an evening period, and the control module is used to classify the noontime period into the daytime period on a cloudy day.

Images