Control method and device of air-conditioning water heater system and air-conditioning water heater system

Abstract

The invention provides a control method and device of an air conditioner water heater system and the air conditioner water heater system. The method comprises the steps that under the condition that a heating request of a user is received, the operation mode of the air conditioner is obtained, and the operation mode comprises a refrigeration mode and a heating mode; under the condition that the operation mode of the air conditioner is a refrigeration mode, cooperative work between the water heater and the air conditioner is adjusted at least according to the heat required by the user so as to at least conduct heat recovery; and under the condition that the operation mode of the air conditioner is the heating mode, resource allocation between the water heater and the air conditioner is adjusted at least according to the water temperature of the water heater so as to meet the heating mode and heat supply. According to the scheme, the problem that in the prior art, an air conditioner water heater system lacks an effective coordination mechanism, the working mode cannot be automatically adjusted, and the user experience effect is poor is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat recovery, in particular to a control method of an air conditioner water heater system, a control device of the air conditioner water heater system and the air conditioner water heater system. BACKGROUND

[0002] With the increasing environmental awareness and the increasingly severe energy crisis, energy-saving and efficient home appliances have become the market mainstream. Among many energy-saving technologies, heat pump technology is favored because it can efficiently convert environmental heat. The combination of air source heat pump air conditioners and water heaters aims to meet the air conditioning cooling, air conditioning heating and hot water supply needs of residential and commercial places through the same system, realize multiple use of energy and significantly improve energy efficiency.

[0003] The system principle of the heating mode of the air source heat pump air conditioner and the hot water mode of the air source heat pump water heater is the same, and the outdoor unit absorbs environmental heat to heat or heat water. Through a combination of one outdoor unit + indoor unit + water tank, multiple working modes such as air conditioning cooling, air conditioning heating, water heater heating water, etc. can be realized.

[0004] However, the current air conditioner water heater system still has some technical and design limitations in actual application. There is a lack of effective coordination mechanism for the air conditioner water heater system, which cannot automatically adjust the working mode, resulting in poor user experience. SUMMARY

[0005] The main purpose of the present application is to provide a control method of an air conditioner water heater system, a control device of the air conditioner water heater system and the air conditioner water heater system, to at least solve the problem that the prior art air conditioner water heater system lacks effective coordination mechanism, cannot automatically adjust the working mode, and results in poor user experience.

[0006] In order to achieve the above purpose, according to one aspect of the present application, a control method of an air conditioner water heater system is provided, the air conditioner water heater system comprising a water heater and an air conditioner, the water heater and the air conditioner being at least communicated through a pipeline, the water heater being used for heating flowing water, the method comprising: in the case of receiving a heating request of a user, acquiring a running mode of the air conditioner, wherein the running mode comprises a cooling mode and a heating mode; in the case that the running mode of the air conditioner is the cooling mode, at least adjusting the coordinated work between the water heater and the air conditioner according to user demand heat to at least perform heat recovery; in the case that the running mode of the air conditioner is the heating mode, at least adjusting the resource allocation between the water heater and the air conditioner according to the water temperature of the water heater to meet the heating mode and heating.

[0007] Optionally, the adjusting the cooperation between the water heater and the air conditioner according to at least the user demand heat quantity comprises: obtaining a first heat quantity, a second heat quantity and a third heat quantity, wherein the first heat quantity is a heat quantity of heat water generated by heat recovery of refrigeration, the second heat quantity is a heat quantity consumed by the heat water, and the third heat quantity is a heat quantity supplemented by starting the water heater; calculating a sum of the first heat quantity and the third heat quantity to obtain a fourth heat quantity; calculating a difference between the fourth heat quantity and the second heat quantity to obtain a fifth heat quantity; determining that the user demand heat quantity is not satisfied in a case that the fifth heat quantity is greater than or equal to a first preset heat threshold and the fifth heat quantity is less than or equal to a second preset heat threshold, or in a case that the fifth heat quantity is less than the first preset heat threshold, wherein the first preset heat is less than the second preset heat threshold; and controlling the air conditioner water heater system to operate in a heat recovery mode, wherein the heat recovery mode is to use the heat quantity released by the air conditioner refrigeration to heat the water heater.

[0008] Optionally, after obtaining the operation mode of the air conditioner, the method further comprises: controlling the water heater to be turned off in a case that the operation mode of the air conditioner is the refrigeration mode, the fifth heat quantity is greater than or equal to the first preset heat threshold, the fifth heat quantity is less than or equal to the second preset heat threshold, and the air conditioner has been turned off; and controlling the water heater to be turned on in a case that the operation mode of the air conditioner is the refrigeration mode, the fifth heat quantity is less than the first preset heat threshold, and the air conditioner has been turned off.

[0009] Optionally, the adjusting the cooperation between the water heater and the air conditioner according to at least the user demand heat quantity comprises: determining that the user demand heat quantity is satisfied in a case that the fifth heat quantity is greater than the second preset heat threshold; controlling the air conditioner to release heat to the outside; and controlling the water heater to be turned off.

[0010] Optionally, the acquiring the first heat, the second heat and the third heat comprises: acquiring a related parameter, wherein the related parameter comprises a heat capacity of water in the water heater, a weight of water in the water heater, a water temperature after the water heater runs in the heat recovery mode, a water temperature before the water heater runs in the heat recovery mode, a consumed weight of water, a water temperature of a hot water pipe, and a water temperature of a cold water pipe; calculating a difference between the water temperature after the water heater runs in the heat recovery mode and the water temperature before the water heater runs in the heat recovery mode to obtain a first water temperature difference; calculating a product of the heat capacity of water in the water heater and the weight of water in the water heater to obtain a first mass product; calculating a product of the first water temperature difference and the first mass product to obtain the first heat; calculating a difference between the water temperature of the hot water pipe and the water temperature of the cold water pipe to obtain a second water temperature difference; calculating a product of the heat capacity of water in the water heater and the consumed weight of water to obtain a second mass product; calculating a product of the second water temperature difference and the second mass product to obtain the second heat; calculating a difference between the second heat and the first heat to obtain a heat difference; and calculating a difference between the heat difference and the third heat at a previous time to obtain the third heat at a current time, wherein the third heat at an initial time is heat generated when the water heater is first started.

[0011] Optionally, after receiving the heating request of the user, the method further comprises: in a case where the air conditioner water heater system is first started, a running time of the air conditioner water heater system reaches a preset time, and the running mode of the air conditioner is the cooling mode, controlling the air conditioner water heater system to run in the heat recovery mode; in a case where the air conditioner water heater system is first started, the running time of the air conditioner water heater system reaches the preset time, and the air conditioner is not started, controlling the water heater to be started.

[0012] Optionally, the adjusting the resource allocation between the water heater and the air conditioner according to at least the water temperature of the water heater comprises: in a case where the water temperature of the water heater is less than or equal to a first water temperature threshold, starting the water heater and stopping the air conditioner from heating; in a case where the water temperature of the water heater is greater than the first water temperature threshold and less than or equal to a second water temperature threshold, starting the water heater and starting the air conditioner to heat, wherein the first water temperature threshold is less than the second water temperature threshold; and in a case where the water temperature of the water heater is greater than the second water temperature threshold, stopping the water heater and starting the air conditioner to heat.

[0013] According to another aspect of the present application, a control device of an air conditioner water heater system is provided, the air conditioner water heater system comprising a water heater and an air conditioner, the water heater and the air conditioner being communicated at least through a pipeline, the water heater being used for heating flowing water, the device comprising: an acquisition unit configured to acquire an operation mode of the air conditioner in a case where a heating request of a user is received, wherein the operation mode comprises a cooling mode and a heating mode; a first adjustment unit configured to, in a case where the operation mode of the air conditioner is the cooling mode, adjust a cooperative work between the water heater and the air conditioner at least according to a user demand heat to at least perform heat recovery; and a second adjustment unit configured to, in a case where the operation mode of the air conditioner is the heating mode, adjust a resource allocation between the water heater and the air conditioner at least according to a water temperature of the water heater to meet the heating mode and heating.

[0014] According to still another aspect of the present application, an air conditioner water heater system is provided, comprising: an air conditioner comprising an indoor unit, an outdoor unit and a compressor; a water heater; and a control device, wherein the control device is configured to execute any one of the control methods of the air conditioner water heater system.

[0015] Optionally, the air conditioner water heater system further comprises: a four-way valve, a first end of the four-way valve being connected with the indoor unit, a second end of the four-way valve being connected with the compressor, a third end of the four-way valve being connected with the outdoor unit, and a fourth end of the four-way valve being connected with the compressor; a first electromagnetic valve, the first electromagnetic valve being connected with the fourth end of the four-way valve and the compressor respectively; a second electromagnetic valve, the second electromagnetic valve being connected with the first electromagnetic valve, the compressor and the water heater respectively; a third electromagnetic valve, the third electromagnetic valve being connected with the outdoor unit; a first electronic expansion valve, the first electronic expansion valve being connected with the third electromagnetic valve and the water heater respectively; and a second electronic expansion valve, the second electronic expansion valve being connected with the indoor unit, the third electromagnetic valve and the first electronic expansion valve respectively.

[0016] By applying the technical solution of the present application, when a user has a heating water demand and the air conditioner is in a cooling mode, the air conditioner is automatically switched to a cooling heat recovery mode, and the condensing heat of the air conditioner is directly used for heating water, without the need of additionally starting the water heater, so that the purposes of energy saving and environmental protection are achieved, when the user simultaneously has an air conditioner heating demand and a heating water demand, resources are dynamically allocated to ensure that the user comfort is met, that is, in summer, the air conditioner energy saving effect is achieved by fully utilizing the cooling heat recovery of the air conditioner, and in winter, the air conditioner heating demand and the heating water demand are achieved by dynamically and efficiently allocating resources, so as to optimize the operation strategy of the air conditioner water heater system, thereby improving the experience effect of the user. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The accompanying drawings should not be regarded as a limitation of the present application. In the accompanying drawings:

[0018] Figure 1 A hardware structure block diagram of a mobile terminal for performing a control method of an air conditioner water heater system according to an embodiment of the present application is shown;

[0019] Figure 2 A flowchart of a control method of an air conditioner water heater system according to an embodiment of the present application is shown;

[0020] Figure 3 A structure diagram of an air conditioner water heater system is shown;

[0021] Figure 4 Another flowchart of a control method of an air conditioner water heater system is shown;

[0022] Figure 5 A flowchart of a cooling + heating water operation is shown;

[0023] Figure 6 A flowchart of a heating + heating water operation is shown;

[0024] Figure 7 A structure block diagram of a control device of an air conditioner water heater system according to an embodiment of the present application is shown.

[0025] Among the above figures, the following reference signs are included:

[0026] 102, processor; 104, memory; 106, transmission device; 108, input / output device; 10, water heater; 11, indoor unit; 12, outdoor unit; 13, compressor; 14, four-way valve; 15, first electromagnetic valve; 16, second electromagnetic valve; 17, third electromagnetic valve; 18, first electronic expansion valve; 19, second electronic expansion valve. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments and features in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should be within the scope of protection of the present application.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] As described in the background section, existing air conditioning water heater systems lack an effective coordination mechanism and cannot automatically adjust their operating modes, resulting in a poor user experience. To address these issues, embodiments of this application provide a control method, a control device, and an air conditioning water heater system.

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] The methods and embodiments provided in this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for a control method of an air conditioning water heater system according to an embodiment of the present invention. Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0033] The memory 104 can be used to store computer programs, such as software programs of application software and modules, such as a computer program corresponding to the control method of the air-conditioning water heater system in the embodiments of the present application. The processor 102 executes various functional applications and data processing, i.e., implements the above method, by running the computer program stored in the memory 104. The memory 104 can include a high-speed random access memory, and can further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include memories remotely arranged with respect to the processor 102, which can be connected to the mobile terminal through a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The specific examples of the above network can include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.

[0034] In the embodiments, a control method of an air-conditioning water heater system running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0035] Figure 2 is a flowchart of the control method of the air-conditioning water heater system according to the embodiments of the present application. As shown in Figure 2 , the method includes the following steps:

[0036] In step S201, in the case of receiving a heating request of a user, the operating mode of the air conditioner is acquired, wherein the operating mode includes a cooling mode and a heating mode.

[0037] Specifically, when the user sends a hot water instruction to the system through the wire controller or the remote controller, the controller in the system reads the working state of the current air conditioner, judges whether the air conditioner is running and its operating mode, so as to prepare for subsequent mode switching or resource allocation. This step ensures that the system can respond to user demand in time, and avoids energy waste caused by information lag.

[0038] Step S202, in the case that the operation mode of the air conditioner is the refrigeration mode, at least according to the user's heat demand, the cooperation between the water heater and the air conditioner is adjusted to at least perform heat recovery;

[0039] Specifically, if the air conditioner is running in the refrigeration mode, the state of the electromagnetic valve and the electronic expansion valve will be automatically adjusted so that the condensation heat generated by the air conditioner condenser can be captured by the water tank heat exchanger (i.e., the water heater) for heating the water in the water tank. This not only avoids the waste of energy caused by the dissipation of condensation heat into the environment, but also significantly improves the energy utilization efficiency of the entire air conditioner water heater system by recycling this part of the heat for hot water preparation. The key to this step is to accurately match and adjust the energy flow between the air conditioner and the water heater to ensure effective heat recovery.

[0040] Step S203, in the case that the operation mode of the air conditioner is the heating mode, at least according to the water temperature of the water heater, the resource allocation between the water heater and the air conditioner is adjusted to meet the heating mode and heating.

[0041] Specifically, in winter, when the air conditioner is in the heating mode and the user needs hot water, the water tank water temperature will be monitored, and if the water temperature is lower than the set threshold T2 (e.g., 50℃), the load of the air conditioner heating will be appropriately reduced to divert part of the energy to the water tank heating, and vice versa, if the water temperature is high enough, the indoor heating demand will be prioritized. This dynamic resource allocation mechanism enables the system to effectively supply hot water while meeting the indoor temperature, avoiding the energy conflict and low efficiency problem caused by the independent operation of the water heater and the air conditioner in the traditional mode. Through real-time monitoring and intelligent adjustment, this step realizes the efficient and energy-saving operation of the air conditioner water heater system in winter, especially when meeting the hot water demand, without excessively sacrificing the indoor temperature, thereby improving the user experience.

[0042] Through this embodiment, when the user has a hot water demand and the air conditioner is in the refrigeration mode, the refrigeration heat recovery mode is automatically switched to, the condensation heat of the air conditioner is directly used for heating water, without the need to start the water heater additionally, realizing the purpose of energy saving and environmental protection, when the user simultaneously proposes the air conditioner heating and hot water demand, the resources are dynamically allocated to ensure that the user's comfort is met, i.e., in summer, the air conditioner refrigeration heat recovery is fully utilized to realize the energy-saving effect of the air conditioner, in winter, the resources are dynamically and efficiently allocated to realize the air conditioner heating and hot water demand, so as to optimize the operation strategy of the air conditioner water heater system, thereby improving the user experience effect.

[0043] Specifically, the original air conditioner water heater system sets the air conditioner cooling and heating requirements through a remote controller and sets the hot water requirement through a line controller. In summer conditions, when the user opens the hot water requirement through the line controller, the hot water is forcibly opened when the water temperature is not enough without opening the cooling, and the cooling heat recovery cannot be realized for high energy saving. In winter conditions, when the user has the heating requirement and the hot water requirement, the user's requirements cannot be met at the same time. The scheme of the present application can solve the problem that the air conditioner requirement and the water heater requirement cannot be efficiently cooperated, and the air conditioner water heater gives priority to the air conditioner requirement.

[0044] Specifically, the above-mentioned embodiments realize efficient response of the air conditioner water heater system to the user's heating and hot water requirements in different seasons through intelligent control. Specifically, in summer, the heat recovery function in the air conditioner cooling process is used to reduce the starting frequency of the additional heat pump hot water mode, significantly improve the energy utilization rate, and reduce the air conditioner operation cost. In winter, the energy distribution between the air conditioner and the water heater is dynamically adjusted to ensure the comfort of indoor temperature and take into account the hot water supply, avoiding energy waste caused by single equipment independent operation. This scheme not only solves the defects of the traditional air conditioner water heater system in demand cooperation, but also realizes energy saving and efficient operation of the system through intelligent means, which has obvious economic and social benefits.

[0045] Specifically, the scheme of the present application is applied to an air conditioner water heater system, as shown in Figure 3 The air conditioner water heater system includes an air conditioner and a water heater 10, the air conditioner includes an indoor unit 11, an outdoor unit 12 and a compressor 13, the air conditioner water heater system further includes a four-way valve 14, a first electromagnetic valve 15, a second electromagnetic valve 16, a third electromagnetic valve 17, a first electronic expansion valve 18 and a second electronic expansion valve 19, the first end E of the four-way valve is connected with the indoor unit, the second end S of the four-way valve is connected with the compressor, the third end C of the four-way valve is connected with the outdoor unit, and the fourth end D of the four-way valve is connected with the compressor; the first electromagnetic valve is connected with the fourth end of the four-way valve and the compressor respectively; the second electromagnetic valve is connected with the first electromagnetic valve, the compressor and the water heater respectively; the third electromagnetic valve is connected with the outdoor unit; the first electronic expansion valve is connected with the third electromagnetic valve and the water heater respectively; and the second electronic expansion valve is connected with the indoor unit, the third electromagnetic valve and the first electronic expansion valve.

[0046] Specifically, as shown in Figure 4As shown, when the user opens the hot water demand: if there is an air conditioning cooling demand, enter "air conditioning cooling + hot water" demand, and maintain the current demand state when the air conditioning cooling demand is closed; when there is an air conditioning heating demand, enter "air conditioning heating + hot water" demand, and maintain the current demand state when the air conditioning heating demand is closed; the air conditioner is turned off for a time T≥Ta, and operates according to the "air conditioning heating + hot water" demand.

[0047] Specifically, in summer, the system determines whether the user first enters the hot water mode (assuming T0=1h), and automatically starts the heat recovery mode when the condition is met (such as the water temperature being lower than the preset value T1, T1=45℃). During the continuous operation of the mode, by comparing the increase and decrease of the water tank heat with the user's hot water demand, the system can determine whether to additionally start the heat pump hot water mode to supplement the heat. In this process, the system utilizes the waste heat discharged by the condenser during air conditioning cooling, without consuming additional electric energy, thus achieving energy-saving effect.

[0048] In winter, after receiving the user's hot water demand, the system first checks the water tank temperature. If the water temperature does not reach T2 (T2=40℃), even if the user has turned on the air conditioning heating, the system will adjust the air conditioning output, and direct part of the energy to the water tank for heating. This resource allocation strategy is based on the internal energy management and user demand analysis of the system, and through fine-tuning the opening degree of key components such as electromagnetic valves and electronic expansion valves, the balance between heating and hot water supply is achieved. In this process, the system can avoid excessive use of a single heating mode, thereby avoiding redundant consumption of energy and achieving high efficiency in winter operation mode.

[0049] In the specific implementation process, at least according to the user demand heat, the cooperation between the above water heater and the above air conditioner can be realized through the following steps: obtaining a first heat, a second heat and a third heat, wherein the first heat is the heat generated by the refrigeration heat recovery for hot water, the second heat is the heat consumed by the hot water, and the third heat is the heat supplemented by turning on the water heater; calculating the sum of the first heat and the third heat to obtain a fourth heat; calculating the difference between the fourth heat and the second heat to obtain a fifth heat; in the case that the fifth heat is greater than or equal to a first preset heat threshold and the fifth heat is less than or equal to a second preset heat threshold, or in the case that the fifth heat is less than the first preset heat threshold, it is determined that the user demand heat is not met, wherein the first preset heat is less than the second preset heat threshold; the heat recovery mode is used to control the operation of the air conditioner water heater system, wherein the heat recovery mode is to use the heat released by the air conditioning cooling for heating the water heater.

[0050] In the scheme, when the user starts the water heater to heat water, the efficiency of the air conditioner heat recovery and the actual consumption of hot water by the user are monitored, and the additional heat that the water heater may need is monitored. Subsequently, through threshold judgment, the running mode can be intelligently identified and adjusted in a timely manner to ensure that the system meets the user's demand while optimizing the use of energy. Through the dynamic adjustment of the intelligent heat recovery mode, the heat demand of the water heater can be efficiently supplemented without affecting the comfort of air conditioning cooling, avoiding energy waste caused by additional opening of the water heater, and realizing high-efficiency energy saving of the air conditioner and water heater system in summer, and improving user satisfaction and energy utilization efficiency.

[0051] Specifically, the first preset heat threshold can be set to 0.5 kWh, and the second preset heat threshold can be set to 2.0 kWh, of course, any other feasible value can also be used.

[0052] For example, in summer, when the user starts the water heater to heat water, the efficiency of the air conditioner heat recovery and the actual consumption of hot water by the user are monitored, and the additional heat that the water heater may need is monitored. Assuming that the system is set to record every hour (i.e., Hi-1, i), during which the first heat Qr = 1.5 kWh (i.e., the heat of hot water generated by air conditioning cooling heat recovery), the second heat Qx = 1.2 kWh (i.e., the heat of hot water consumed by the user), and the third heat Qb = 0.5 kWh (i.e., the heat of the water heater supplemented by additional opening) are recorded by the built-in heat metering module.

[0053] The first heat Qr and the third heat Qb are added to obtain the fourth heat Q4 = Qr + Qb = 1.5 kWh + 0.5 kWh = 2.0 kWh. Then the difference between the fourth heat Q4 and the second heat Qx is calculated, i.e., the fifth heat Q5 = Q4 - Qx = 2.0 kWh - 1.2 kWh = 0.8 kWh.

[0054] When the calculated fifth heat Q5 = 0.8 kWh falls within the interval [Tl, Tu], it is determined that the current heat output and demand are basically balanced, but there is still a certain buffer space. However, if Q5 < the first preset heat threshold Tl = 0.5 kWh, for example, Q5 = 0.3 kWh, it is immediately identified that the heat output is insufficient to meet the user's demand.

[0055] When the system determines that the current heat output is lower than the preset minimum threshold, i.e., the fifth heat Q5 < the first preset heat threshold Tl = 0.5 kWh, the system will automatically adjust to enter the heat recovery enhancement mode, and more heat released during the air conditioning cooling process will be used for heating the water heater by optimizing the air conditioning system cooling heat recovery process, until the fifth heat Q5 at least reaches the first preset heat threshold Tl, ensuring that the user's hot water demand is continuously met.

[0056] In some embodiments, after obtaining the operation mode of the air conditioner, the method further comprises the following steps: when the operation mode of the air conditioner is the refrigeration mode, the fifth heat is greater than or equal to the first preset heat threshold, the fifth heat is less than or equal to the second preset heat threshold, and the air conditioner has been turned off, the water heater is controlled to be turned off; when the operation mode of the air conditioner is the refrigeration mode, the fifth heat is less than the first preset heat threshold, and the air conditioner has been turned off, the water heater is controlled to be turned on.

[0057] In this scheme, when the specific heat balance condition is met, the water heater is automatically turned off, energy is saved, and unnecessary heat waste is avoided. When the air conditioner is turned off and the remaining heat is insufficient to meet the basic hot water demand, the water heater can be intelligently identified and started to supplement the heat required for hot water, ensuring the continuity of hot water supply.

[0058] For example, on a typical summer day, assume that the user has used a large amount of hot water in the morning, causing the water tank temperature to drop to a low level. At this time, the air conditioner is in the refrigeration mode, the system detects that the first heat (heat generated by refrigeration heat recovery) is 2.5 kWh, the second heat (heat consumed by hot water) is 2.2 kWh, and the third heat (heat additionally supplied by the water heater) is 0.5 kWh. The system calculates that the fourth heat is 3.0 kWh, and the fifth heat (heat balance) is 0.8 kWh. Considering that the first preset heat threshold Tl is set to 0.5 kWh and the second preset heat threshold Tu is set to 2.0 kWh, the system detects that the fifth heat Q5 = 0.8 kWh falls within the interval [Tl, u] after the air conditioner refrigeration is completed, and determines that the current hot water reserve is sufficient, and then executes the water heater shutdown instruction, avoiding the idling of the water heater in the absence of demand, saving energy, and reducing operating costs.

[0059] For example, also in summer, but assume that the hot water consumption increases after the family members return home in the late afternoon, causing the water tank temperature to drop again. At this time, the air conditioner is still in the refrigeration state, the system monitors that the first heat (heat generated by refrigeration heat recovery) is 1.2 kWh, the second heat (heat consumed by hot water) is 1.5 kWh, and the third heat (heat additionally supplied by the water heater) is 0 kWh in the refrigeration mode. The system calculates that the fourth heat is 1.2 kWh, and the fifth heat is -0.3 kWh, which is lower than the first preset heat threshold Tl = 0.5 kWh. The system can intelligently identify the heat shortage and start the water heater immediately after the air conditioner stops refrigeration to make up for the insufficient hot water heat generated in the heat recovery mode, ensuring the immediacy and continuity of hot water supply, avoiding the delay in meeting the user's hot water demand, and at the same time achieving energy-saving operation, reducing the risk of excessive heating of the water heater, and ensuring the efficient operation of the system.

[0060] In the specific implementation process, the coordinated operation between the water heater and the air conditioner can be adjusted according to the user's heat demand. This can be achieved through the following steps: when the fifth heat demand is greater than the second preset heat threshold, it is determined that the user's heat demand is met; the air conditioner is controlled to release heat to the outside, and the water heater is controlled to turn off.

[0061] In this solution, when there is sufficient hot water storage, there is no need for an additional water heater, thus avoiding energy waste caused by overheating of hot water and preventing overheating in water heaters and air conditioning systems. This achieves precise energy management and efficient utilization, improving the economic and environmental performance of the system.

[0062] For example, based on the previously defined second preset heat threshold Tu (assuming it is 5 kWh), if the calculated fifth heat (Q5) exceeds this threshold within a certain period (e.g., Q5 = 6 kWh), the system will determine that the current heat output far exceeds the user's hot water consumption. This means that the amount of hot water generated in the heat recovery mode is sufficient to meet the user's needs, and there may even be a surplus. When the fifth heat Q5 > the second preset heat threshold Tu, the system confirms that the current heat recovery efficiency is extremely high, the hot water reserve is sufficient, and the standard for meeting the user's heat demand has been met. No additional water heater is needed, thus achieving optimal energy utilization of the system while meeting hot water demand.

[0063] Specifically, once the system determines that the fifth heat value (Q5) exceeds the second preset heat threshold (Tu), it will immediately take measures. On the one hand, by adjusting the states of the solenoid valve and electronic expansion valve of the air conditioning system, it will switch to normal mode, allowing the air conditioner to release excess heat (i.e., the portion exceeding the hot water demand) directly to the outside, thus avoiding indoor overheating. On the other hand, the system will control the water heater to stop heating, ensuring that no unnecessary excess heat is generated. While meeting the user's hot water demand, it avoids overheating in the water heater and air conditioning system, achieving precise energy management and efficient utilization, and improving the economic and environmental performance of the system operation.

[0064] Specifically, such as Figure 5 As shown, when the system enters energy-saving mode, every H i-1,i Time (e.g., H) 0,1 Record the user's air conditioner cooling and heat recovery start-up time (from 0:00 to 1:00). r,i Hot water usage time (h) x,i Additional time (h) to start the heat pump (i.e., water heater) to replenish hot water b,i Every time H passes i-1,i The time is calculated based on the usage time of the air conditioner and water heater to generate heat for hot water (Q). r,i (First heat), heat consumed when using hot water Qx,i (Second heat), additional open heat pump hot water mode to supplement heat Q b,i (Third heat). When ∑ i Q r,i +∑ i Q b,i -∑ i Q x,i > 0, indicating that H i-1,i Hot water supplement heat meets user needs do not need additional hot water heat (air conditioning operation refrigeration mode does not need to switch refrigeration heat recovery); when Q0≤∑ i Q r,i +∑ i Q b,i -∑ i Q x,i ≤ 0, indicating that H i-1,i Hot water supplement heat does not meet user needs need to open additional refrigeration heat recovery to supplement hot water heat (air conditioning into refrigeration mode switch to refrigeration heat recovery operation, air conditioning off when not open heat pump hot water operation); when ∑ i Q r,i +∑ i Q b,i -∑ i Q x,i < Q0, indicating that H i-1,i Hot water supplement heat seriously does not meet user needs need to open additional heat pump hot water mode to supplement hot water heat (when open air conditioning refrigeration switch to refrigeration heat recovery mode, air conditioning off when open heat pump hot water operation, water temperature to stop heating requirements).

[0065] In some embodiments, obtaining the first heat, the second heat, and the third heat can be achieved through the following steps: obtaining relevant parameters, including the heat capacity of the water in the water heater, the weight of the water in the water heater, the water temperature after operating in the heat recovery mode, the water temperature before operating in the heat recovery mode, the weight of the water consumed, the water temperature of the hot water pipe, and the water temperature of the cold water pipe; calculating the difference between the water temperature after operating in the heat recovery mode and the water temperature before operating in the heat recovery mode to obtain the first water temperature difference; and calculating the product of the heat capacity of the water in the water heater and the weight of the water in the water heater to obtain the first mass product. The product of the first water temperature difference and the first mass is calculated to obtain the first heat. The difference between the water temperature in the hot water pipe and the water temperature in the cold water pipe is calculated to obtain the second water temperature difference. The product of the heat capacity of the water in the water heater and the weight of the water consumed is calculated to obtain the second mass product. The product of the second water temperature difference and the second mass product is calculated to obtain the second heat. The difference between the second heat and the first heat is calculated to obtain the heat difference. The difference between the heat difference and the third heat at the previous moment is calculated to obtain the third heat at the current moment, wherein the third heat at the initial moment is the heat generated when the water heater is turned on for the first time.

[0066] In this scheme, the heat generated in the heat recovery mode can be quantified through the above calculation method, and the heat consumed by the user's hot water can be accurately calculated. Then, the accurate third heat can be obtained by calculating the heat difference and the heat replenished at the previous moment.

[0067] Specifically, H i-1,i At any given time, calculate the required heat Q for hot water production using cooling heat recovery (or heat pump hot water mode). r,i =C×m×(T) w -T n ), that is, the first calorie.

[0068] H i-1,i At any given time, calculate the heat consumption Q of the user using hot water. x,i =C×m1×(T) rs -T bs ), that is, the second heat.

[0069] H i-1,i At time ∑ i Q r,i +∑ i Q b,i -∑ i Q x,i <Q0, indicating H i-1,i The amount of hot water provided by the hot water supply is seriously insufficient to meet user needs, requiring H i,i+1 The heat pump water heating mode is activated additionally during the time to supplement the heat of the hot water, and the supplemented heat is Q.b,i+1 =∑ i Q x,i -∑ i Q r,i -∑ i Q b,i , namely the third heat, the heat generated by the first time opening the water heater can be the heat generated by the first time opening the water heater in a day; the hot water temperature meets the requirement and the heating is stopped.

[0070] In the formula: C is the heat capacity of hot water; m is the mass of hot water, that is, the weight; T w is the water temperature after heating by refrigeration heat recovery; T n is the water temperature before heating by refrigeration heat recovery; m1 is the consumed hot water mass, that is, the weight; T rs is the hot water temperature, that is, the water temperature of the hot water pipe; T bs is the water temperature of the cold water pipe.

[0071] In the specific implementation process, after receiving the heating request of the user, the above method further includes the following steps: in the case that the above air conditioner water heater system is first operated, and the operation time length reaches the preset time length, and the above operation mode of the above air conditioner is the above refrigeration mode, all meet the conditions, the above air conditioner water heater system is controlled to operate in the above heat recovery mode; in the case that the above air conditioner water heater system is first operated, and the operation time length reaches the preset time length, and the above air conditioner is not started, all meet the conditions, the above water heater is controlled to be started.

[0072] In the scheme, the heat recovery mode or the separate water heater heating mode can be flexibly switched according to the air conditioner operation state and the preset time length condition, so that the user demand can be met, and the efficient use and management of energy can be realized.

[0073] Specifically, after receiving the heating request of the user, the operation mode can be intelligently selected according to the current operation state and the preset condition, so that the user demand can be met, and the efficient use of energy can be realized. Specifically, in the case that the above air conditioner water heater system is first operated, and the operation time length reaches the preset time length (assuming 2 hours), and the above operation mode of the above air conditioner is the above refrigeration mode, the system will automatically control to operate in the heat recovery mode.

[0074] For example, assuming that the user first starts the air conditioner water heater system in the morning in summer, after receiving the heating request, the system detects that the air conditioner is in the refrigeration mode, and the system operation time length has reached the preset 2 hours, the system will judge that the above conditions are met, and then the heat recovery mode is adopted, the waste heat generated in the air conditioner refrigeration process is used for heating water, so that the efficient cooperation of the refrigeration and heating demand is realized, and the energy is saved.

[0075] Specifically, in the above air conditioner water heater system, when the system is first run, and the running time reaches the preset time, and the air conditioner is not turned on, the water heater is controlled to be turned on, so that even if the air conditioner is not running, the user can also get timely hot water supply. Improve the flexibility and user demand response speed of the system, avoid the delay of hot water supply caused by the limitation of air conditioning operation mode.

[0076] For example, assume that the user first turns on in the morning in summer, the system running time reaches the preset 2 hours, but the air conditioner is not turned on at this time, the system will automatically control the water heater to run alone, to provide hot water in heating mode, to ensure that the user can immediately get the required hot water, while avoiding unnecessary energy waste, and improving the user experience.

[0077] Specifically, as shown in Figure 5 When entering the "air conditioner cooling + hot water" demand, the following conditions are judged: 1. Is it the first time to enter this demand? 2. System running time T ≥ T0; If both conditions are met, enter forced hot water and restart recording (forced hot water: when the air conditioner is turned on to cool, enter the cooling heat recovery, when the air conditioner is not turned on to cool, enter the heat pump hot water mode); Otherwise, enter the system energy saving mode.

[0078] Specifically, the control logic of the air conditioner water heater cooling heat recovery operation is as follows: four-way valve E and S are connected, the first electromagnetic valve is closed, the third electromagnetic valve is closed, the second electromagnetic valve is opened, the first electronic expansion valve is fully opened, and the second electronic expansion valve is adjusted (only the second electronic expansion valve is opened) to control the circulating system. After the refrigerant comes out of the compressor, it flows through the water tank system (i.e. the water heater), the second electronic expansion valve, and the indoor unit, and then flows into the compressor.

[0079] Specifically, the control logic of the air conditioner water heater air conditioner cooling operation is as follows: four-way valve E and D, S and C are connected, the second electromagnetic valve is closed, the first electromagnetic valve is opened, the third electromagnetic valve is opened, the first electronic expansion valve is closed, and the second electronic expansion valve is adjusted (only the second electronic expansion valve is opened) to control the circulating system. After the refrigerant comes out of the compressor, it flows through the outdoor condenser, the second electronic expansion valve, and the indoor unit, and then flows into the compressor.

[0080] In some embodiments, the resource allocation between the water heater and the air conditioner is adjusted according to the water temperature of the water heater, specifically by the following steps: when the water temperature of the water heater is less than or equal to a first water temperature threshold, the water heater is turned on and the air conditioner heating is turned off; when the water temperature of the water heater is greater than the first water temperature threshold and less than or equal to a second water temperature threshold, the water heater is turned on and the air conditioner heating is turned on, wherein the first water temperature threshold is less than the second water temperature threshold; when the water temperature of the water heater is greater than the second water temperature threshold, the water heater is turned off and the air conditioner heating is turned on.

[0081] In this scheme, the resource allocation strategy is realized through conditional judgment, realizing the collaborative work between the water heater and the air conditioner, not only meeting the user's immediate demand for hot water and indoor temperature, but also ensuring the efficient use of energy, avoiding excessive consumption and waste of resources.

[0082] Specifically, as shown in Figure 6 When entering the "air conditioner heating + hot water" demand: enter the intelligent control state. When the user uses hot water and the hot water T water temperature ≤ T1 (first water temperature threshold), the heat pump hot water mode is forced to start; otherwise, it is judged whether to start the air conditioner heating, when the air conditioner heating is started and T water temperature ≤ T2 (second water temperature threshold), the air conditioner heating + hot water mode is started; when the air conditioner heating is started and T water temperature > T2, the air conditioner heating mode is started; when the air conditioner heating is not started and T water temperature ≤ T1, the heat pump hot water mode is started.

[0083] Specifically, for the control logic of the air conditioner heating operation of the air conditioner water heater: four-way valve C and D, E and S are connected, the second electromagnetic valve is closed, the first electromagnetic valve is opened, the third electromagnetic valve is opened, the first electronic expansion valve is closed, and the second electronic expansion valve is adjusted (only the second electronic expansion valve is opened) to control the circulating system. After the refrigerant comes out of the compressor, it flows through the indoor unit, the second electronic expansion valve, the outdoor unit and then flows into the compressor.

[0084] Specifically, for the control logic of the heat pump hot water operation of the air conditioner water heater: four-way valve E and S are connected, the first electromagnetic valve is closed, the second electromagnetic valve is opened, the third electromagnetic valve is opened, the second electronic expansion valve is closed, and the first electronic expansion valve is adjusted (only the second electronic expansion valve is opened) to control the circulating system. After the refrigerant comes out of the compressor, it flows through the water tank system (water heater), the first electronic expansion valve, the outdoor unit and then flows into the compressor.

[0085] Specifically, for the hot water operation of the air conditioner water heater, the control logic is as follows: four-way valve C and D, E and S are connected, the first electromagnetic valve is opened, the second electromagnetic valve is opened, the third electromagnetic valve is opened, the first electronic expansion valve and the second electronic expansion valve are adjusted to adjust the refrigerant flow in the water tank system (i.e. water heater) and the indoor unit. After the refrigerant comes out of the compressor, it is divided into two streams, one flows through the indoor unit and the second electronic expansion valve, and the other flows through the water tank system and the first electronic expansion valve. The two streams converge and flow through the outdoor unit, and finally return to the compressor.

[0086] Specifically, assuming that the first water temperature threshold set by the system is T1 = 40℃, when the water temperature in the water tank of the water heater is detected to be at or below this threshold, the system will automatically start the water heater heating mode, while ensuring that the air conditioner heating is turned off to avoid energy waste. This can ensure a quick response when the water temperature is insufficient, meeting the user's hot water demand, while avoiding conflicts with the air conditioner heating mode, leading to excessive energy consumption.

[0087] Specifically, assuming that the second water temperature threshold is set to T2 = 50℃, when the water temperature of the water heater is between 40℃ and 50℃ (i.e. T1 < T ≤ T2), the system will start both the water heater and the air conditioner heating to ensure that both the water temperature and the indoor temperature can quickly reach the user's satisfaction level. This can achieve dual optimization of water temperature and indoor temperature by dynamically adjusting the operation state of the water heater and the air conditioner, improving user comfort and energy utilization efficiency.

[0088] Specifically, once the water temperature of the water heater rises above the second water temperature threshold T2 = 50℃, the system will turn off the water heater heating and focus on the air conditioner heating to maintain the indoor temperature comfortable, while avoiding energy waste caused by excessive heating of the water heater. This ensures a more reasonable allocation of resources between the water heater and the air conditioner, avoiding energy loss caused by excessive heating, and improving the overall operating efficiency of the system.

[0089] The embodiments of the present application also provide a control device for an air conditioner water heater system. It should be noted that the control device for an air conditioner water heater system of the embodiments of the present application can be used to execute the control method for an air conditioner water heater system provided by the embodiments of the present application. The device is used to implement the above embodiments and preferred embodiments, which have been described. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware can also be implemented and conceived.

[0090] The control device for an air conditioner water heater system provided by the embodiments of the present application is described below.

[0091] Figure 7is a structural block diagram of a control device of an air conditioner water heater system according to an embodiment of the present application. As shown in Figure 7 the device comprises:

[0092] an acquisition unit 100, configured to acquire an operation mode of the air conditioner in a case where a heating request of a user is received, wherein the operation mode comprises a cooling mode and a heating mode;

[0093] a first adjusting unit 200, configured to adjust a cooperative work between the water heater and the air conditioner at least according to a user demand heat in a case where the operation mode of the air conditioner is the cooling mode, so as to at least perform heat recovery.

[0094] a second adjusting unit 300, configured to adjust a resource allocation between the water heater and the air conditioner at least according to a water temperature of the water heater in a case where the operation mode of the air conditioner is the heating mode, so as to meet the heating mode and heating.

[0095] Through the embodiment, when the user has a hot water demand and the air conditioner is in the cooling mode, the cooling heat recovery mode is automatically switched to, the condensing heat of the air conditioner is directly used for heating water, the water heater does not need to be additionally started, the energy-saving and environment-friendly purpose is realized, when the air conditioner heating and the hot water demand are simultaneously proposed by the user, the resources are dynamically allocated, and the user comfort is ensured, that is, in summer, the air conditioner energy-saving effect is realized by fully utilizing the cooling heat recovery of the air conditioner, in winter, the air conditioner heating and the hot water demand are realized by dynamically and efficiently allocating the resources, so as to optimize the operation strategy of the air conditioner water heater system, thereby improving the experience effect of the user.

[0096] In a specific implementation process, the first adjusting unit comprises an acquisition module, a first calculation module, a second calculation module, a first determination module and a first control module, the acquisition module is configured to acquire a first heat, a second heat and a third heat, wherein the first heat is a heat for generating hot water by cooling heat recovery, the second heat is a heat consumed by hot water, and the third heat is a heat supplemented by starting the water heater; the first calculation module is configured to calculate a sum of the first heat and the third heat to obtain a fourth heat; the second calculation module is configured to calculate a difference between the fourth heat and the second heat to obtain a fifth heat; the first determination module is configured to determine that the user demand heat is not met in a case where the fifth heat is greater than or equal to a first preset heat threshold and the fifth heat is less than or equal to a second preset heat threshold, or in a case where the fifth heat is less than the first preset heat threshold, wherein the first preset heat is less than the second preset heat threshold; and the first control module is configured to control the air conditioner water heater system to operate in a heat recovery mode, wherein the heat recovery mode is to use the heat released by the air conditioner cooling for heating the water heater.

[0097] In the scheme, when the user starts the water heater to heat water, the efficiency of the air conditioner heat recovery and the actual consumption of the user's hot water are monitored, and the additional heat required by the water heater is determined. Subsequently, through threshold judgment, the running mode can be intelligently identified and adjusted in a timely manner to ensure that the system meets the user's demand while optimizing the use of energy. Through the dynamic adjustment of the intelligent heat recovery mode, the heat demand of the water heater can be efficiently supplemented without affecting the comfort of the air conditioner cooling, avoiding the energy waste caused by the additional start of the water heater, realizing the high-efficiency and energy-saving operation of the air conditioner and water heater system in summer, and improving the user satisfaction and energy utilization efficiency.

[0098] In some embodiments, the device further comprises a first control unit and a second control unit. The first control unit is configured to control the water heater to be turned off when the following conditions are met: the running mode of the air conditioner is the cooling mode, the fifth heat is greater than or equal to the first preset heat threshold, the fifth heat is less than or equal to the second preset heat threshold, and the air conditioner is turned off. The second control unit is configured to control the water heater to be turned on when the following conditions are met: the running mode of the air conditioner is the cooling mode, the fifth heat is less than the first preset heat threshold, and the air conditioner is turned off.

[0099] In the scheme, when the specific heat balance condition is met, the water heater is automatically turned off to save energy and avoid unnecessary heat waste. When the air conditioner is turned off and the remaining heat is insufficient to meet the basic hot water demand, the water heater can be intelligently identified and started to supplement the heat required for hot water, ensuring the continuity of hot water supply.

[0100] In the specific implementation process, the first adjustment unit comprises a second determination module and a second control module. The second determination module is configured to determine that the user demand heat is met when the fifth heat is greater than the second preset heat threshold. The second control module is configured to control the air conditioner to release heat to the outside and control the water heater to be turned off.

[0101] In the scheme, when the hot water reserve is sufficient, additional heating by the water heater is not required, avoiding energy waste caused by excessive heating of hot water and avoiding excessive heating in the water heater and air conditioner system, realizing accurate management and efficient use of energy, and improving the economy and environmental protection of system operation.

[0102] In some embodiments, the obtaining module comprises an obtaining submodule, a first calculation submodule, a second calculation submodule, a third calculation submodule, a fourth calculation submodule, a fifth calculation submodule, a sixth calculation submodule, a seventh calculation submodule, and an eighth calculation submodule. The obtaining submodule is configured to obtain relevant parameters, wherein the relevant parameters comprise the heat capacity of the water in the water heater, the weight of the water in the water heater, the water temperature after the water heater is operated in the heat recovery mode, the water temperature before the water heater is operated in the heat recovery mode, the weight of the consumed water, the water temperature of the hot water pipe, and the water temperature of the cold water pipe. The first calculation submodule is configured to calculate the difference between the water temperature after the water heater is operated in the heat recovery mode and the water temperature before the water heater is operated in the heat recovery mode to obtain a first water temperature difference. The second calculation submodule is configured to calculate the product of the heat capacity of the water in the water heater and the weight of the water in the water heater to obtain a first mass product. The third calculation submodule is configured to calculate the product of the first water temperature difference and the first mass product to obtain the first heat. The fourth calculation submodule is configured to calculate the difference between the water temperature of the hot water pipe and the water temperature of the cold water pipe to obtain a second water temperature difference. The fifth calculation submodule is configured to calculate the product of the heat capacity of the water in the water heater and the weight of the consumed water to obtain a second mass product. The sixth calculation submodule is configured to calculate the product of the second water temperature difference and the second mass product to obtain the second heat. The seventh calculation submodule is configured to calculate the difference between the second heat and the first heat to obtain a heat difference. The eighth calculation submodule is configured to calculate the difference between the heat difference and the third heat at the previous time to obtain the third heat at the current time, wherein the third heat at the initial time is the heat generated when the water heater is first turned on.

[0103] In this scheme, the heat generated in the heat recovery mode can be quantified by the above calculation method, and the heat consumed by the user for hot water can also be accurately calculated, and then the accurate third heat can be obtained by calculating the heat difference and the supplementary heat at the previous time.

[0104] In the specific implementation process, the device further comprises a third control unit and a fourth control unit. The third control unit is configured to, after receiving a user heating request, control the air-water heater system to operate in the heat recovery mode when the following conditions are met: the air-water heater system is operated for the first time, the operation time of the air-water heater system reaches a preset time, and the operation mode of the air conditioner is the refrigeration mode. The fourth control unit is configured to control the water heater to be turned on when the following conditions are met: the air-water heater system is operated for the first time, the operation time of the air-water heater system reaches a preset time, and the air conditioner is not turned on.

[0105] In this scheme, the air-water heater system can be flexibly switched to the heat recovery mode or the separate water heater heating mode according to the operation state of the air conditioner and the preset time condition, thereby ensuring that the user's demand is met and the efficient use and management of energy are realized.

[0106] In some embodiments, the second adjustment unit comprises a first adjustment module, a second adjustment module and a third adjustment module, the first adjustment module is configured to start the water heater and stop the air conditioner heating when the water temperature of the water heater is less than or equal to a first water temperature threshold, the second adjustment module is configured to start the water heater and start the air conditioner heating when the water temperature of the water heater is greater than the first water temperature threshold and less than or equal to a second water temperature threshold, and the third adjustment module is configured to stop the water heater and start the air conditioner heating when the water temperature of the water heater is greater than the second water temperature threshold.

[0107] In the scheme, the resource allocation strategy is realized through conditional judgment, the collaborative work between the water heater and the air conditioner is realized, the instant demand of the user for hot water and indoor temperature is met, the efficient use of energy is ensured, and the excessive consumption and waste of resources are avoided.

[0108] The control device of the air conditioner water heater system comprises a processor and a memory, and the acquisition unit, the first adjustment unit and the second adjustment unit are stored in the memory as program units, and the corresponding functions are realized by executing the program units stored in the memory by the processor. The modules are located in the same processor, or the modules are located in different processors in any combination.

[0109] The processor comprises a core, and the core retrieves the corresponding program unit from the memory. The core can be one or more, and the problem that the air conditioner water heater system in the prior art lacks an effective coordination mechanism and cannot automatically adjust the working mode, resulting in poor user experience, can be solved by adjusting the core parameters.

[0110] The memory can include non-permanent memory in a computer readable medium, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash memory (flash RAM), and the memory comprises at least one memory chip.

[0111] The embodiment of the present application provides a computer readable storage medium, and the computer readable storage medium comprises a stored program, wherein the computer readable storage medium controls the device where the computer readable storage medium is located to execute the control method of the air conditioner water heater system when the program runs.

[0112] The embodiment of the present application provides a processor, and the processor is used for running a program, wherein the control method of the air conditioner water heater system is executed when the program runs.

[0113] The embodiment of the present application provides a device, the device comprising a processor, a memory and a program stored on the memory and executable on the processor, the processor implements the steps of the control method of the air conditioner water heater system when executing the program. The device herein can be a server, a PC, a PAD, a mobile phone and the like.

[0114] The present application also provides a computer program product, when executed on a data processing device, is suitable for executing the program initialized with the steps of the control method of the air conditioner water heater system.

[0115] The present application also provides an air conditioner water heater system, comprising an air conditioner, a water heater and a control device, the air conditioner comprising an indoor unit, an outdoor unit and a compressor; the control device is used for executing any one of the control methods of the air conditioner water heater system.

[0116] The air conditioner water heater system further comprises a four-way valve, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a first electronic expansion valve and a second electronic expansion valve, a first end of the four-way valve is connected with the indoor unit, a second end of the four-way valve is connected with the compressor, a third end of the four-way valve is connected with the outdoor unit, and a fourth end of the four-way valve is connected with the compressor; the first electromagnetic valve is connected with the fourth end of the four-way valve and the compressor respectively; the second electromagnetic valve is connected with the first electromagnetic valve, the compressor and the water heater respectively; the third electromagnetic valve is connected with the outdoor unit; the first electronic expansion valve is connected with the third electromagnetic valve and the water heater respectively; and the second electronic expansion valve is connected with the indoor unit, the third electromagnetic valve and the first electronic expansion valve.

[0117] Obviously, those skilled in the art should understand that the modules or steps of the present application described above can be realized by general computing devices, which can be concentrated on a single computing device or distributed on a network composed of multiple computing devices, and can be realized by program codes executable by the computing devices, so that they can be stored in storage devices and executed by the computing devices, and in some cases, the steps shown or described herein can be executed in different order, or they can be manufactured into individual integrated circuit modules respectively, or multiple modules or steps among them can be manufactured into a single integrated circuit module. Therefore, the present application is not limited to any specific combination of hardware and software.

[0118] Those skilled in the art will appreciate that embodiments of the application can be readily used as software, hardware, or a combination of software and hardware. In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0119] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0120] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0121] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0122] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0123] The memory can include non-persistent memory and / or volatile memory, such as a random access memory (RAM) including a cache area for the temporary storage of data. The memory can also include non-volatile memory, such as a read only memory (ROM), EPROM, EEPROM, flash memory, or other non-volatile memory storage. The memory can be another type of computer-readable media, a magnetic-based memory, such as a magnetic disks, magnetic tapes or cassettes, or cards or other types of memory which can store data.

[0124] Computer-readable media includes permanent and non-permanent, movable and non-movable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer-readable media does not include transitory media such as modulated data signals and carriers.

[0125] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0126] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0127] The above description is only preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control method for an air conditioning water heater system, characterized in that, An air conditioning water heater system includes a water heater and an air conditioner, the water heater and the air conditioner being connected at least by pipes, the water heater being used to heat flowing water, and the method comprising: Upon receiving a user's heating request, the operating mode of the air conditioner is obtained, wherein the operating mode includes a cooling mode and a heating mode; When the air conditioner is in the cooling mode, the water heater and the air conditioner work together in coordination, at least according to the user's heat demand, so as to perform at least heat recovery. When the air conditioner is in the heating mode, the resource allocation between the water heater and the air conditioner is adjusted at least according to the water temperature of the water heater to meet the heating mode and heating requirements.

2. The method according to claim 1, characterized in that, Adjusting the coordination between the water heater and the air conditioner based on user-demanded heat requirements includes: The system obtains a first heat source, a second heat source, and a third heat source, wherein the first heat source is the heat generated by the heat recovery from cooling to hot water, the second heat source is the heat consumed by the hot water, and the third heat source is the heat replenished by turning on the water heater. Calculate the sum of the first heat and the third heat to obtain the fourth heat; Calculate the difference between the fourth calorie and the second calorie to obtain the fifth calorie; If the fifth heat value is greater than or equal to the first preset heat value and the fifth heat value is less than or equal to the second preset heat value, or if the fifth heat value is less than the first preset heat value, it is determined that the user's heat demand is not met, wherein the first preset heat value is less than the second preset heat value. The operation of the air conditioning water heater system is controlled by a heat recovery mode, wherein the heat recovery mode uses the heat released by the air conditioner for heating the water heater.

3. The method according to claim 2, characterized in that, After obtaining the operating mode of the air conditioner, the method further includes: When the following conditions are met: the air conditioner is in cooling mode, the fifth heat value is greater than or equal to the first preset heat value, the fifth heat value is less than or equal to the second preset heat value, and the air conditioner is turned off, the water heater is controlled to be turned off. When the conditions are met that the air conditioner is in cooling mode, the fifth heat value is less than the first preset heat value threshold, and the air conditioner is turned off, the water heater is controlled to turn on.

4. The method according to claim 2, characterized in that, Adjusting the coordination between the water heater and the air conditioner based on user-demanded heat requirements includes: If the fifth heat value is greater than the second preset heat value threshold, it is determined that the heat value required by the user is met. Control the air conditioner to release heat to the outside, and control the water heater to turn off.

5. The method according to claim 2, characterized in that, Obtaining the first calorie, the second calorie, and the third calorie includes: Obtain relevant parameters, including the heat capacity of water in the water heater, the weight of water in the water heater, the water temperature after operating in the heat recovery mode, the water temperature before operating in the heat recovery mode, the weight of water consumed, the water temperature of the hot water pipe, and the water temperature of the cold water pipe. Calculate the difference between the water temperature after operating in the heat recovery mode and the water temperature before operating in the heat recovery mode to obtain the first water temperature difference; Calculate the product of the heat capacity of the water in the water heater and the weight of the water in the water heater to obtain the first mass product; The first heat is obtained by multiplying the first water temperature difference by the first mass. Calculate the temperature difference between the hot water pipe and the cold water pipe to obtain the second temperature difference. The second mass product is obtained by multiplying the heat capacity of the water in the water heater by the weight of the water consumed. The second heat is obtained by multiplying the second water temperature difference and the second mass. Calculate the difference between the second heat and the first heat to obtain the heat difference; The difference between the heat difference and the third heat at the previous moment is calculated to obtain the third heat at the current moment, wherein the third heat at the initial moment is the heat generated when the water heater is turned on for the first time.

6. The method according to claim 2, characterized in that, After receiving a user's heating request, the method further includes: When the air conditioning water heater system is running for the first time, and the running time reaches the preset time, and the air conditioner's operating mode is the cooling mode, the heat recovery mode is used to control the operation of the air conditioning water heater system. When the air conditioning water heater system is running for the first time, and the running time reaches the preset duration, and the air conditioner is not turned on, the water heater is controlled to turn on.

7. The method according to claim 1, characterized in that, Adjusting the resource allocation between the water heater and the air conditioner based at least on the water temperature of the water heater includes: When the water temperature in the water heater is less than or equal to the first water temperature threshold, the water heater is turned on and the air conditioner's heating function is turned off. When the water temperature of the water heater is greater than the first water temperature threshold and the water temperature of the water heater is less than or equal to the second water temperature threshold, the water heater is turned on and the air conditioner is turned on for heating, wherein the first water temperature threshold is less than the second water temperature threshold. If the water temperature in the water heater is higher than the second water temperature threshold, turn off the water heater and turn on the air conditioner to heat.

8. A control device for an air conditioning water heater system, characterized in that, An air conditioning water heater system includes a water heater and an air conditioner, the water heater and the air conditioner being connected at least by pipes, the water heater being used to heat flowing water, and the device comprising: The acquisition unit is used to acquire the operating mode of the air conditioner upon receiving a user's heating request, wherein the operating mode includes a cooling mode and a heating mode. The first adjustment unit is used to adjust the coordinated operation between the water heater and the air conditioner, at least according to the user's heat demand, when the air conditioner is in the cooling mode, so as to perform at least heat recovery. The second adjustment unit is used to adjust the resource allocation between the water heater and the air conditioner, at least according to the water temperature of the water heater, when the air conditioner is in the heating mode, so as to meet the heating mode and heating supply.

9. An air conditioning water heater system, characterized in that, include: Air conditioners include an indoor unit, an outdoor unit, and a compressor; Water heater; A control device, wherein the control device is used to perform the control method of the air conditioning water heater system according to any one of claims 1 to 7.

10. The air conditioning water heater system according to claim 9, characterized in that, The air conditioning water heater system also includes: A four-way valve, wherein the first end of the four-way valve is connected to the indoor unit, the second end of the four-way valve is connected to the compressor, the third end of the four-way valve is connected to the outdoor unit, and the fourth end of the four-way valve is connected to the compressor; The first solenoid valve is connected to the fourth end of the four-way valve and the compressor, respectively; The second solenoid valve is connected to the first solenoid valve, the compressor, and the water heater, respectively; The third solenoid valve is connected to the outdoor unit; The first electronic expansion valve is connected to the third solenoid valve and the water heater, respectively; The second electronic expansion valve is connected to the indoor unit, the third solenoid valve, and the first electronic expansion valve, respectively.

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