Hot water system and control method thereof

Abstract

The invention relates to the technical field of household appliances and discloses a hot water system which comprises a water tank, a water inlet pipe, a water outlet pipe and a hot water supply pipe. The water tank is internally used for storing water, and a condenser of the refrigeration equipment is arranged in the water tank; the water inlet pipe is communicated with the water tank and used for injecting cold water into the water tank; the water outlet pipe communicates with the water tank and is used for guiding hot water out of the water tank. The hot water supply pipe communicates with the water tank and supplies hot water to the outside. According to the refrigeration system, the refrigeration effect of the refrigeration system can be guaranteed while the condensation heat of the refrigeration equipment is recycled for supplying hot water, and the user experience is improved. The invention further discloses a control method of the hot water system.

Description

Technical Field

[0001] The present application relates to the field of household appliance technology, and in particular to a hot water system and a control method thereof. Background Art

[0002] At present, refrigeration equipment mainly includes refrigerators and freezers, which mainly use refrigeration systems to provide cooling capacity for refrigeration, and the condensation heat emitted by the condenser in the refrigeration system is mostly discharged to the outside, resulting in waste of condensation heat and low energy utilization. Moreover, the condensation heat discharged to the indoor environment where the refrigerator and freezer are located will also cause temperature fluctuations in the indoor environment, affecting the comfort of the indoor environment.

[0003] There is an energy-saving device in the related art, including refrigeration equipment, refrigerant outlet pipe, fins, condenser pipe, tap water inlet pipe, tap water outlet pipe, electric water heater, valve, refrigerant inlet pipe and water tank, the refrigerant outlet pipe and refrigerant inlet pipe on the air conditioner are connected to both ends of the condenser pipe, a plurality of fins are installed on the condenser pipe, the condenser pipe is located in the water tank, the upper part of the water tank is connected to the tap water inlet pipe, the lower part is connected to the tap water outlet pipe, and the tap water outlet pipe is connected to the electric water heater through a valve. This solution can recycle and collect the heat that needs to be discharged by the condenser in refrigeration equipment such as air conditioners and refrigerators, and combine with heating equipment to reduce the energy consumption caused by the heat dissipation of the condenser, thereby reducing the energy consumption of the heating equipment.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] A water tank is set up to recover the condensation heat of the refrigeration equipment, and the recovered condensation heat is used to heat the water in the water tank; however, when the water in the water tank is heated to a certain degree, the heat exchange capacity of the water in the water tank will decrease, resulting in a decrease in the heat dissipation effect of the condenser, affecting the refrigeration effect of the refrigeration equipment.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a hot water system and a control method thereof, so as to ensure the refrigeration effect of the refrigeration system and improve the user experience while recovering the condensation heat of the refrigeration equipment to supply hot water.

[0009] In some embodiments, the hot water system includes: a water tank, a water inlet pipe, a water outlet pipe and a hot water supply pipe. The water tank is used to store water, and the condenser of the refrigeration equipment is arranged in the water tank; the water inlet pipe is connected to the water tank and is used to inject cold water into the water tank; the water outlet pipe is connected to the water tank and is used to output the hot water in the water tank; the hot water supply pipe is connected to the water tank and is used to supply hot water to the outside.

[0010] Optionally, the connecting positions of the water inlet pipe and the water outlet pipe with the water tank are both located on the vertical side wall of the water tank, and the water inlet pipe is located below the water outlet pipe.

[0011] Optionally, the communication position between the hot water supply pipe and the water tank is located at the lower side of the water tank.

[0012] Optionally, an electric heating module is provided inside the water tank to heat the water stored inside the water tank.

[0013] Optionally, the hot water system further comprises: a temperature sensor. The temperature sensor is arranged inside the water tank and is used to detect the water temperature inside the water tank.

[0014] In some embodiments, a method for controlling a hot water system includes:

[0015] Get the water temperature inside the water tank;

[0016] Determine the target temperature range of the water storage temperature;

[0017] The water inlet and outlet pipes are controlled to be closed or opened according to the control strategy corresponding to the target temperature range.

[0018] Optionally, determining the target temperature range for the water storage temperature includes: determining the target temperature range for the water storage temperature from a first temperature range and a second temperature range; wherein the maximum value in the first temperature range is less than the minimum value in the second temperature range.

[0019] Optionally, the control strategy corresponding to the first temperature interval is: controlling the water inlet pipe and the water outlet pipe to be in a closed state; the control strategy corresponding to the second temperature interval is: controlling the water inlet pipe and the water outlet pipe to be in an open state.

[0020] Optionally, the control method of the hot water system also includes: determining the user's water demand; determining the relationship between the water storage temperature and a set threshold; and controlling the hot water supply pipe to be turned on when the water storage temperature is greater than or equal to the set threshold.

[0021] In some embodiments, a control device for a hot water system includes: a processor and a memory storing program instructions, and the processor is configured to execute any of the above-mentioned control methods for a hot water system when running the program instructions.

[0022] The hot water system and control method thereof provided by the embodiments of the present disclosure can achieve the following technical effects:

[0023] The condenser of the refrigeration equipment is placed outside the water tank, and the condensation heat released by the condenser is recovered through the water stored in the water tank to prevent the condensation heat from being released into the room where the refrigeration equipment is located and affecting the temperature of the indoor environment. The hot water in the water tank is supplied to the user side by setting a hot water supply pipe. The water inlet pipe and the water outlet pipe are set, and the condenser in the water tank always maintains a good heat exchange capacity through the cooperation of the water inlet pipe and the water outlet pipe according to the change of the water storage temperature inside the water tank. By obtaining the water storage temperature inside the water tank in real time, the conduction of the water outlet pipe and the water inlet pipe is controlled according to the control strategy corresponding to the target temperature range of the storage temperature, so as to ensure the heat dissipation effect of the condenser of the refrigeration equipment, thereby ensuring the refrigeration effect of the refrigeration equipment and improving the user experience.

[0024] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0026] Figure 1 is a structural schematic diagram of a hot water system provided by an embodiment of the present disclosure;

[0027] Figure 2 is a schematic diagram of the location of the electric heating module provided in the embodiment of the present disclosure;

[0028] Figure 3 is a structural schematic diagram of another hot water system provided by an embodiment of the present disclosure;

[0029] Figure 4 is a schematic diagram of a control method for a hot water system provided by an embodiment of the present disclosure;

[0030] Figure 5 is a schematic diagram of another hot water system control method provided by an embodiment of the present disclosure;

[0031] Figure 6 is a schematic diagram of another hot water system control method provided by an embodiment of the present disclosure;

[0032] Figure 7 It is a schematic diagram of a control device for a hot water system provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 100, processor; 101, memory; 102, communication interface; 103, bus; 200, water tank; 210, water inlet pipe; 220, water outlet pipe; 230, hot water supply pipe; 240, solenoid water valve; 250, first water valve; 260, second water valve; 270, electric heating module; 280, temperature sensor; 300, condenser; 400, compressor; 500, evaporator; 600, transfer box; 610, water pipe. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0041] Combination Figure 1-3 As shown, in some embodiments, the hot water system includes: a water tank 200, a water inlet pipe 210, a water outlet pipe 220 and a hot water supply pipe 230. The water tank 200 is used to store water, and the condenser 300 of the refrigeration equipment is arranged in the water tank 200; the water inlet pipe 210 is connected to the water tank 200, and is used to inject cold water into the water tank 200; the water outlet pipe 220 is connected to the water tank 200, and is used to output the hot water in the water tank 200; the hot water supply pipe 230 is connected to the water tank 200, and is used to supply hot water to the outside.

[0042] By using the hot water system provided by the embodiment of the present disclosure, the condenser 300 of the refrigeration equipment is placed outside the water tank 200, and the condensation heat released by the condenser 300 is recovered through the water stored in the water tank 200, so as to avoid the condensation heat being released into the room where the refrigeration equipment is located and affecting the temperature of the indoor environment. The hot water in the water tank 200 is supplied to the user side for use by setting the hot water supply pipe 230, and the water inlet pipe 210 and the water outlet pipe 220 are set, according to the change of the water storage temperature in the water tank 200, the condenser 300 in the water tank 200 is always kept at a good heat exchange capacity through the cooperation of the water inlet pipe 210 and the water outlet pipe 220.

[0043] Optionally, the refrigeration device is a refrigerator or a freezer. In this way, the condenser 300 of the refrigerator or freezer is placed outside the water tank 200, and the water stored in the water tank 200 is used to exchange heat with the condenser 300, and the condensation heat is recycled and reused to improve energy utilization. In addition, the refrigerator or freezer needs to work continuously for refrigeration, so its condenser 300 can continuously provide condensation heat to heat the water in the water tank 200.

[0044] Exemplarily, the refrigeration system of the refrigeration equipment is partially external, the compressor 400 and the condenser 300 in the refrigeration system are external, and the condenser 300 is arranged in the water tank 200. It can prevent the heat released by the compressor 400 and the condenser 300 from entering the indoor environment where the refrigeration equipment is located, and maintain the comfort of the indoor environment.

[0045] It can be understood that the condenser 300 in the water tank 200 is connected to the evaporator 500, the compressor 400 and the throttling device in the refrigeration system through a refrigerant pipeline, which will not be elaborated here.

[0046] Optionally, the connection positions of the water inlet pipe 210 and the water outlet pipe 220 with the water tank 200 are both located on the vertical side wall of the water tank 200, and the water inlet pipe 210 is located below the water outlet pipe 220. In this way, since water with a relatively high temperature will flow upward and water with a relatively low temperature will flow downward, the water inlet pipe 210 and the water outlet pipe 220 are both connected to the vertical side wall of the water tank 200, and the water inlet pipe 210 is arranged below the water outlet pipe 220. When the water storage temperature inside the water tank 200 is high, it is necessary to discharge the hot water through the water outlet pipe 220. When cold water is introduced through the water inlet pipe 210, the hot water in the upper layer of the water tank 200 is discharged through the water outlet pipe 220, and the introduced cold water flows into the lower layer area inside the water tank 200. The hot water in the water tank 200 is efficiently discharged, the heat exchange effect of the condenser 300 inside the water tank 200 is guaranteed, the condensation heat is fully recovered, and the refrigeration effect of the refrigeration equipment is guaranteed.

[0047] Optionally, the water inlet pipe 210 and the water outlet pipe 220 are both provided with an electromagnetic water valve 240. In this way, the conduction state of the water inlet pipe 210 and the water outlet pipe 220 is controlled by controlling the switch of the electromagnetic water valve 240 of the water inlet pipe 210 and the water outlet pipe 220.

[0048] Optionally, the hot water supply pipe 230 is connected to the water tank 200 at the lower side of the water tank 200. In this way, hot water is supplied to the user side through the hot water supply pipe 230, and the hot water supply pipe 230 is connected to the lower side of the water tank 200, so that the hot water inside the water tank 200 can be efficiently output through the hot water supply pipe 230, thereby ensuring the hot water supply.

[0049] Exemplarily, the water inlet pipe 210 can also be used for the water adding operation of the water tank 200. When the water level in the water tank 200 is low, water is injected into the water tank 200 through the water inlet pipe 210 to replenish the water storage in the water tank 200, so that the water in the water tank 200 always immerses the condenser 300, thereby increasing the heat exchange area between the water storage and the condenser 300, thereby improving the heat exchange effect.

[0050] Optionally, the hot water supply pipe 230 is connected with a first water valve 250 and a second water valve 260, which are arranged in sequence along the water outlet direction, and the first water valve 250 is located at the water inlet side of the second water valve 260. In this way, in order to prevent the cold water in the water tank 200 from being directly discharged to the user side, the first water valve 250 and the second water valve 260 are arranged in the hot water supply pipe 230. When the second water valve 260 is opened on the user side, the hot water system can control the switch of the first water valve 250 according to the water storage temperature of the water tank 200, control the first water valve 250 to be closed when the water storage temperature in the water tank 200 is low, and control the first water valve 250 to be opened when the water storage temperature in the water tank 200 is appropriate, so as to supply hot water to the user, thereby improving the user experience.

[0051] It can be understood that the hot water supply pipe 230 can be directly connected to the shower head on the user side to supply hot water directly to the shower head for the user to use.

[0052] Optionally, an electric heating module 270 is provided inside the water tank 200 to heat the water stored inside the water tank 200. In this way, when the ambient temperature is low and the condenser 300 cannot heat the water stored inside the water tank 200 to a suitable temperature, the electric heating module 270 can cooperate with the condenser 300 to heat the water stored in the water tank 200 to ensure the supply of hot water.

[0053] Optionally, the electric heating module 270 is disposed on one side of the condenser 300, and in the vertical direction, the height of the electric heating module 270 is the same as the height of the condenser 300. In this way, the heating radiation range of the electric heating module 270 in the vertical direction is adapted to the condenser 300, thereby improving the heating efficiency.

[0054] Specifically, the electric heating module 270 can be an electric heating wire. In this way, by arranging the electric heating wire inside the water tank 200 to heat the stored water, the heating efficiency is improved and the heating cost is reduced.

[0055] Optionally, the hot water system further includes: a temperature sensor 280. The temperature sensor 280 is disposed inside the water tank 200 and is used to detect the water temperature inside the water tank 200. In this way, the water temperature inside the water tank 200 can be detected in real time through the temperature sensor 280, so that the hot water system can make control operations in time according to the water temperature inside the water tank 200, thereby ensuring the heat exchange effect of the condenser 300 in the water tank 200 and the temperature of the water stored in the water tank 200.

[0056] Optionally, the hot water system further includes a transfer box 600. The transfer box 600 is connected to the water outlet pipe 220. In this way, when the hot water in the water tank 200 is discharged through the water outlet pipe 220, the hot water can be discharged into the transfer box 600 for storage for additional use, thereby reducing the waste of hot water.

[0057] Optionally, the water outlet pipe 220 is further connected to a shunt pipe, which is connected to the external environment. In this way, when the internal space of the transfer box 600 is full, the hot water in the water tank 200 can be directly discharged to the external environment through the shunt pipe, ensuring that the hot water in the water tank 200 is continuously discharged, thereby ensuring the heat exchange effect of the condenser 300.

[0058] Optionally, the side wall of the transfer box 600 is connected with a water pipe 610, and the water pipe 610 is connected to the hot water supply pipe 230. In this way, the hot water stored in the transfer box 600 can be discharged to the hot water supply pipe 230 through the water pipe 610 for hot water supply, so as to better meet the hot water supply demand of the user.

[0059] Combination Figure 4 As shown, in some embodiments, a method for controlling a hot water system includes:

[0060] S01, the processor obtains the water storage temperature inside the water tank;

[0061] S02, the processor determines the target temperature range of the water storage temperature;

[0062] S03, the processor controls the water inlet pipe and the water outlet pipe to close or open according to the control strategy corresponding to the target temperature range.

[0063] By adopting the control method of the hot water system provided by the embodiment of the present disclosure, the water storage temperature inside the water tank is obtained in real time, and the conduction of the water outlet pipe and the water inlet pipe is controlled according to the control strategy corresponding to the target temperature range of the storage temperature, so as to ensure the heat dissipation effect of the condenser of the refrigeration equipment, thereby ensuring the refrigeration effect of the refrigeration equipment and improving the user experience.

[0064] Optionally, the processor obtains the water storage temperature inside the water tank, including: the processor obtains the water storage temperature sent by a temperature sensor disposed inside the water tank. In this way, the water storage temperature in the water tank is detected in real time by the temperature sensor disposed inside the water tank, and the processor obtains the water storage temperature sent by the temperature sensor, which simplifies the process of obtaining the water storage temperature and improves the accuracy of the obtained water storage temperature.

[0065] Optionally, the processor determines the target temperature interval of the water storage temperature, including: the processor determines the target temperature interval of the water storage temperature from the first temperature interval and the second temperature interval; wherein the maximum value in the first temperature interval is less than the minimum value in the second temperature interval. In this way, by setting two different temperature intervals, the first temperature interval and the second temperature interval, different temperature intervals correspond to different control strategies, and the temperature values ​​in the first temperature interval and the second temperature interval gradually increase, the processor can control the states of the water inlet pipe and the water outlet pipe differently according to the different temperature intervals where the water storage temperature is located.

[0066] Exemplarily, the first temperature interval is an interval greater than the first set temperature and less than or equal to the second set temperature; the second temperature interval is an interval greater than the second set temperature. For example, the first set temperature is 30°C and the second set temperature is 45°C; the first temperature interval is greater than 30°C and less than or equal to 45°C; the second temperature interval is an interval greater than 45°C.

[0067] Optionally, the control strategy corresponding to the first temperature interval is: the processor controls the water inlet pipe and the water outlet pipe to be in a closed state; the control strategy corresponding to the second temperature interval is: the processor controls the water inlet pipe and the water outlet pipe to be in an open state. In this way, the temperature value in the first temperature interval is relatively low, at which time the water in the water tank and the condenser can exchange heat well, ensuring the heat dissipation effect of the condenser. To ensure the hot water supply of the water tank, the water inlet pipe and the water outlet pipe are controlled to be in a closed state. The temperature value in the second temperature interval is relatively high, at which time the water storage temperature in the water tank is high, resulting in a decrease in the heat exchange efficiency between the condenser and the water storage. In order to ensure the heat dissipation effect of the condenser, and then to ensure the refrigeration effect of the refrigeration equipment, the water inlet pipe and the water outlet pipe are controlled to be in an open state, so that the hot water in the water tank is discharged and the cold water is injected, so that the water storage and the condenser can exchange heat efficiently.

[0068] Specifically, when the target temperature range of the processor is the first temperature range, the processor controls the water inlet pipe and the water outlet pipe to be in a closed state; when the target temperature range of the processor is the second temperature range, the processor controls the water inlet pipe and the water outlet pipe to be in an open state.

[0069] Specifically, the processor controls the water inlet pipe and the water outlet pipe to be in a closed state, including: the processor controls the electromagnetic water valves of the water inlet pipe and the water outlet pipe to be in a closed state.

[0070] Specifically, the processor controls the water inlet pipe and the water outlet pipe to be in an open state, including: the processor controls the electromagnetic water valves of the water inlet pipe and the water outlet pipe to be in an open state.

[0071] In another embodiment, the processor controls the water inlet pipe and the water outlet pipe to close or open according to the control strategy corresponding to the target temperature interval, and also includes: the processor controls the opening and closing of the electric heating module according to the control strategy corresponding to the target temperature interval. In this way, when the external environment is low, the condenser cannot heat the water stored in the water tank to the temperature required for hot water supply, so the processor controls the opening and closing of the electric heating module according to the target temperature interval where the water storage temperature is located to ensure the hot water supply of the water tank.

[0072] Optionally, the temperature interval also includes a third temperature interval, and the maximum value in the third temperature interval is less than the minimum value in the first temperature interval; wherein the control strategy corresponding to the first temperature interval is: the processor controls the water inlet pipe and the water outlet pipe to be in a closed state, and the electric heating module is also in a closed state; the control strategy corresponding to the second temperature interval is: the processor controls the water inlet pipe and the water outlet pipe to be in an open state, and the electric heating module is in a closed state; the control strategy corresponding to the third temperature interval is: the processor controls the water inlet pipe and the water outlet pipe to be in a closed state, and the electric heating module is in an open state. In this way, when the water storage temperature in the water tank is in the relatively lower third temperature interval, the water storage temperature of the water tank is low at this time, and the condenser cannot heat it to a suitable temperature. Therefore, in order to ensure the supply of hot water, the electric heating module is controlled to be turned on for heating.

[0073] Specifically, when the target temperature interval is the third temperature interval, the processor controls the water inlet pipe and the water outlet pipe to be in a closed state, and the electric heating module to be in an open state.

[0074] In one embodiment, after the processor controls the water inlet pipe and the water outlet pipe to be in an open state, the processor also includes: the processor obtains the conduction state of the hot water supply pipe; when the conduction state of the hot water supply pipe is open, the processor controls the flow of the water outlet pipe to decrease. In this way, when the water storage temperature in the water tank is high, it is necessary to discharge the hot water in the water tank and inject cold water to ensure the heat exchange efficiency of the condenser. The water outlet pipe and the hot water supply pipe can both discharge the hot water in the water tank. Therefore, when the water outlet pipe and the water inlet pipe are controlled to be opened to discharge the hot water in the water tank, if there is a user using water at this time, that is, if the hot water supply pipe is in an open state at this time, the flow of the water outlet pipe can be controlled to decrease, so that most of the hot water in the water tank is supplied to the user side for use, while ensuring the heat exchange effect of the condenser, reducing the waste of hot water.

[0075] Specifically, the processor controlling the flow path of the water outlet pipe to decrease includes: the processor controlling the opening of the electromagnetic water valve of the water outlet pipe to decrease.

[0076] Optionally, when the hot water supply pipe is in the on-state, the processor controls the flow rate of the water outlet pipe to decrease, including: when the hot water supply pipe is in the on-state, the processor obtains the target water consumption range; the processor determines the target opening of the electromagnetic water valve of the water outlet pipe according to the target water consumption range, and controls the opening of the electromagnetic water valve to decrease to the target opening. In this way, when the hot water supply pipe is opened, the hot water in the water tank can be output through the hot water supply pipe. Since there are differences in water consumption on the user side, different water consumptions require different hot water, so the corresponding water output of the water outlet pipe is also different. When the water consumption is relatively large, in order to avoid the waste of hot water, the water output of the water outlet pipe is appropriately reduced. Therefore, the processor obtains the target water consumption range, determines the target opening of the electromagnetic water valve of the water outlet pipe according to the target water consumption range, and controls the opening of the electromagnetic water valve to decrease to the target opening to reduce the water output of the water outlet pipe, thereby reducing the waste of hot water while ensuring the heat exchange effect of the condenser.

[0077] Exemplarily, different water consumption ranges correspond to different openings of the electromagnetic water valve of the water outlet pipe, for example, the first water consumption range corresponds to the first opening, and the second water consumption range corresponds to the second opening, wherein the maximum value in the first water consumption range is less than the minimum value in the second water consumption range, and the first opening is greater than the second opening. When the target water consumption range determined by the processor is a relatively small first water consumption range, the amount of hot water output through the hot water supply pipe is relatively small at this time, so the electromagnetic water valve of the water outlet pipe is controlled to be reduced to a relatively large first opening, so that most of the hot water is output through the water outlet pipe, thereby ensuring the heat exchange effect of the condenser. When the target water consumption range determined by the processor is a relatively large second water consumption range, the amount of hot water output through the hot water supply pipe is relatively large at this time, so the electromagnetic water valve of the water outlet pipe is controlled to be reduced to a relatively small second opening, so that most of the hot water is output through the hot water supply pipe, thereby reducing the waste of hot water.

[0078] The corresponding relationship between the water consumption range and the opening degree of the electromagnetic water valve is pre-stored in the database of the processor, and the processor can determine the opening value corresponding to the target water consumption range according to the obtained target water consumption range.

[0079] It is understandable that the processor can obtain water consumption information input by voice, key input or recognition module input, and determine the target water consumption range according to the water consumption information, which will not be elaborated here.

[0080] In one embodiment, after the processor controls the water inlet pipe and the water outlet pipe to be in a closed state and the electric heating module to be in an open state, the processor further includes: the processor obtains the change of the ambient temperature of the refrigeration room of the refrigeration equipment; when the ambient temperature of the refrigeration room increases, the processor controls the voltage of the electric heating module to decrease. In this way, since the condenser of the refrigeration equipment is built in the water tank, the water stored in the water tank is heated by the heat of the condenser, and the evaporator of the refrigeration equipment is arranged in the refrigeration room, when the temperature of the refrigeration room increases, in order to reduce the temperature of the refrigeration room to the level required for storage, it is necessary to increase the cooling capacity of the evaporator. When the cooling capacity of the evaporator increases, the heating capacity of the condenser also increases. Therefore, when the ambient temperature of the refrigeration room increases, the heating capacity of the condenser increases accordingly, and at this time, the water storage is heated by the electric heating module and the condenser inside the water tank. When the heating capacity of the condenser increases, the voltage of the electric heating module is controlled to decrease accordingly, and the heating capacity of the electric heating module is reduced, thereby reducing energy consumption while satisfying the heating of the water tank.

[0081] Optionally, a temperature sensor is provided inside the refrigeration room, and the processor obtains the ambient temperature sent by the temperature sensor inside the refrigeration room.

[0082] Exemplarily, the processor controls the voltage of the electric heating module to be reduced to different target values ​​according to the range of the ambient temperature increase of the refrigeration room. The greater the value of the ambient temperature increase, the smaller the target value corresponding to the voltage of the electric heating module. When the value of the ambient temperature increase of the refrigeration room increases, the required cooling capacity increases, the corresponding heating amount released by the condenser increases, and therefore the corresponding target value of the voltage of the electric heating module decreases.

[0083] Combination Figure 5 As shown, in some other embodiments, the control method of the hot water system includes:

[0084] S07, the processor obtains the water level inside the water tank;

[0085] S08, when the water level inside the water tank is lower than the set water level, the processor controls the water inlet pipe to open.

[0086] S01, the processor obtains the water storage temperature inside the water tank;

[0087] S02, the processor determines the target temperature range of the water storage temperature;

[0088] S03, the processor controls the water inlet pipe and the water outlet pipe to close or open according to the control strategy corresponding to the target temperature range.

[0089] In the control method of the hot water system provided by the embodiment of the present disclosure, before obtaining the water storage temperature inside the water tank, the processor needs to obtain the water level inside the water tank to ensure that there is enough water storage in the water tank for heat exchange with the condenser. When the water level inside the water tank is lower than the set water level, the water inlet pipe is controlled to open to inject water into the water tank to ensure that the water level inside the water tank is at or above the set water level, thereby ensuring the heat exchange effect of the condenser.

[0090] Optionally, a water level sensor is provided inside the water tank, and the processor obtains the water level sent by the water level sensor. In this way, the water level inside the water tank is detected by the water level sensor, and the processor obtains the water level value sent by the water level sensor, which simplifies the acquisition process of the water level inside the water tank and improves the accuracy of the acquired water level.

[0091] Optionally, the processor controls the water inlet pipe to close when the water level inside the water tank is higher than or equal to a set water level.

[0092] Combination Figure 6 As shown, in some other embodiments, the control method of the hot water system includes:

[0093] S01, the processor obtains the water storage temperature inside the water tank;

[0094] S02, the processor determines the target temperature range of the water storage temperature;

[0095] S03, the processor controls the water inlet pipe and the water outlet pipe to close or open according to the control strategy corresponding to the target temperature range.

[0096] S04, the processor determines the user's water demand;

[0097] S05, the processor determines the relationship between the water storage temperature and the set threshold;

[0098] S06, when the water storage temperature is greater than or equal to a set threshold, the processor controls the hot water supply pipe to be turned on.

[0099] According to the control method of the hot water system provided by the embodiment of the present disclosure, since the water stored in the water tank is mainly heated by the condenser, and when the water inlet pipe is opened to add cold water to the water tank, the water temperature in the water tank may be relatively low. In order to improve the user's water use comfort and prevent the cold water in the water tank from being discharged through the hot water supply pipe, the processor determines the relationship between the water storage temperature and the set threshold after determining the user's water demand. When the water storage temperature is greater than or equal to the set threshold, that is, when the water storage temperature meets the use requirements, the hot water supply pipe is controlled to be turned on, thereby improving the user's water use experience.

[0100] Optionally, the processor determines the user's water demand, including: the processor obtains the opening and closing state of the second water valve of the hot water supply pipe; the processor determines the user's water demand when the second water valve is in the open state. In this way, since the first water valve and the second water valve are provided in the hot water supply pipe, the second water valve is located at the water outlet side of the first water valve, and the user needs to open the second water valve when using the hot water, the processor can determine that the user has a water demand when determining that the second water valve is open.

[0101] Optionally, the processor controlling the hot water supply pipe to be turned on includes: the processor controlling the first water valve of the hot water supply pipe to be turned on. In this way, when the processor determines that the user has a water demand, the second water valve of the hot water supply pipe is in an open state, and when it is determined that the set threshold is greater than or equal to the set threshold, that is, the water storage temperature meets the use demand, the first water valve is also controlled to be turned on, so that the hot water supply pipe is turned on and hot water is output to the user side for the user to use.

[0102] Exemplarily, the threshold value may be set to 30°C.

[0103] Combination Figure 7 As shown, an embodiment of the present disclosure provides a control device for a hot water system, including a processor 100 and a memory 101. Optionally, the device may also include a communication interface 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other through the bus 103. The communication interface 102 may be used for information transmission. The processor 100 may call the logic instructions in the memory 101 to execute the control method for the hot water system of the above embodiment.

[0104] In addition, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0105] The memory 101 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 100 executes functional applications and data processing by running the program instructions / modules stored in the memory 101, that is, implementing the control method for the hot water system in the above embodiment.

[0106] The memory 101 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 101 may include a high-speed random access memory and may also include a non-volatile memory.

[0107] An embodiment of the present disclosure provides a hot water system, comprising the control device of the hot water system mentioned above.

[0108] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the control method of the hot water system.

[0109] An embodiment of the present disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the control method of the hot water system.

[0110] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0111] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0112] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0113] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0114] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0115] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A hot water system, characterized in that: include: A water tank (200) is used to store water inside, and a condenser (300) of the refrigeration equipment is arranged inside the water tank (200); A water inlet pipe (210), which is in communication with the water tank (200) and is used to inject cold water into the water tank (200); A water outlet pipe (220) is connected to the water tank (200) and is used to discharge the hot water in the water tank (200); The hot water supply pipe (230) is connected to the water tank (200) and is used to supply hot water to the outside.

2. The hot water system according to claim 1, characterized in that: The communication positions of the water inlet pipe (210) and the water outlet pipe (220) with the water tank (200) are both located on the vertical side wall of the water tank (200), and the water inlet pipe (210) is located below the water outlet pipe (220).

3. The hot water system according to claim 1, characterized in that: The communication position between the hot water supply pipe (230) and the water tank (200) is located at the lower side of the water tank (200).

4. The hot water system according to claim 1, characterized in that: An electric heating module (270) is arranged inside the water tank (200) for heating water stored inside the water tank (200).

5. The hot water system according to any one of claims 1 to 4, characterized in that: Also includes: The temperature sensor (280) is arranged inside the water tank (200) and is used to detect the temperature of the stored water inside the water tank (200).

6. A method for controlling a hot water system, characterized in that: include: Get the water temperature inside the water tank; Determine the target temperature range of the water storage temperature; The water inlet and outlet pipes are controlled to be closed or opened according to the control strategy corresponding to the target temperature range.

7. The control method of the hot water system according to claim 6, characterized in that: Determine the target temperature range for the water storage temperature, including: Determine a target temperature interval for the water storage temperature from the first temperature interval and the second temperature interval; The maximum value in the first temperature interval is smaller than the minimum value in the second temperature interval.

8. The control method of the hot water system according to claim 7, characterized in that: The control strategy corresponding to the first temperature interval is: control the water inlet pipe and the water outlet pipe to be in a closed state; The control strategy corresponding to the second temperature range is: control the water inlet pipe and the water outlet pipe to be in an open state.

9. The control method of the hot water system according to any one of claims 6 to 8, characterized in that: Also includes: Determine the water needs of users; Determine the relationship between the water storage temperature and the set threshold; When the water storage temperature is greater than or equal to the set threshold, the hot water supply pipe is controlled to be conductive.

10. A control device for a hot water system, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method of the hot water system according to any one of claims 6 to 9 when running the program instructions.

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