Control method and device of water heater, water heater and storage medium

Abstract

The invention discloses a control method and device of a water heater, the water heater and a storage medium. The method comprises the steps that first reference information is obtained; according to the first reference information, a target air outlet of a heat exchange device of the water heater is determined; outdoor air is controlled to be introduced from an outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet comprises an indoor air outlet of the heat exchange device or an outdoor air outlet of the heat exchange device.

Description

Technical Field

[0001] The present application relates to the field of water heater control, and in particular to a water heater control method, a water heater device, and a storage medium. Background Art

[0002] When the water heater is running, it obtains low-level heat energy from the air and exchanges the heat energy in the air with the water tank to produce hot water. After the heat exchange, the heat energy in the air is reduced to produce cold air, so that the water heater can blow cold air. In the related art, the water heater is limited to exhausting cold air into the room, and the control method is single. Summary of the invention

[0003] The present application provides a control method and device for a water heater, a water heater and a storage medium, which solve the problem in the related art that the water heater is limited to exhausting cold air into the room and has a single control method.

[0004] The technical solution of this application is implemented as follows:

[0005] A control method for a water heater, comprising:

[0006] obtaining first reference information;

[0007] determining a target air outlet of a heat exchange device of the water heater according to the first reference information;

[0008] Control outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet includes the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device.

[0009] A control device for a water heater, the device comprising:

[0010] An acquisition module, used for acquiring first reference information;

[0011] a determination module, configured to determine a target air outlet of a heat exchange device of the water heater according to the first reference information;

[0012] A control module is used to control outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet includes the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device.

[0013] A water heater, comprising:

[0014] A main shell, a heat exchange device is arranged in the main shell, and an outdoor air inlet of the heat exchange device, an outdoor air outlet of the heat exchange device, and an indoor air outlet of the heat exchange device are arranged on the main shell; wherein the outdoor air inlet and the outdoor air outlet are connected to form a first air duct, outdoor air is introduced from the outdoor air inlet, flows through the first air duct and is discharged from the outdoor air outlet; the outdoor air inlet and the indoor air outlet are connected to form a second air duct, indoor air is introduced from the outdoor air inlet, flows through the second air duct and is discharged from the indoor air outlet;

[0015] The heat exchange device is used to heat the water in the water tank of the water heater;

[0016] A memory for storing executable instructions;

[0017] The processor is used to execute the executable instructions stored in the memory to implement the control method of the water heater.

[0018] A storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the above-mentioned water heater control method.

[0019] The control method, device, water heater and storage medium of the water heater provided in the embodiment of the present application, wherein the method comprises: obtaining first reference information; determining the target air outlet of the heat exchange device of the water heater according to the first reference information; controlling the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet comprises the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device. The problem that the water heater in the related art is limited to discharge cold air indoors and has a single control method is solved. When the outdoor air is introduced from the outdoor air inlet of the present application, it can be selectively discharged from the indoor air outlet or the outdoor air outlet according to the first reference information. In this way, intelligent control is achieved with the help of the water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic flow chart of a control method for a water heater provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of a ventilation mode setting interface provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of a control device for a water heater provided in an embodiment of the present application;

[0023] Figure 4 The structure of the water heater provided in the embodiment of the present application is shown in FIG. Figure 1 ;

[0024] Figure 5 The structure of the water heater provided in the embodiment of the present application is shown in FIG. Figure 2 ;

[0025] Figure 6 A flowchart of a control method in a practical application scenario provided by an embodiment of the present application;

[0026] Figure 7 A flowchart of a control method in another practical application scenario provided by an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0028] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0029] In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0031] The embodiment of the present application provides a control method for a water heater, referring to Figure 1 As shown, the method comprises the following steps:

[0032] Step 101: Obtain first reference information.

[0033] In the embodiment of the present application, the first reference information includes but is not limited to at least one of the following reference information: the working state of the heat exchange device, reference information of the environment in which the heat exchange device is located, input instructions, and time reference information.

[0034] The heat exchange device includes but is not limited to a heat pump. When a heat pump is selected as the heat exchange device, an air source heat pump may be further selected to realize heat exchange.

[0035] The time reference information includes but is not limited to the current time at the heat exchange device, the historical working time at the heat exchange device, and the historical non-working time at the heat exchange device. The reference information of the environment in which the heat exchange device is located includes but is not limited to the temperature of the environment in which the heat exchange device is located and / or the humidity of the environment in which the heat exchange device is located. The working state of the heat exchange device includes but is not limited to the hot water making state and the non-hot water making state. Here, the non-hot water making state includes a working state different from the hot water making state, such as a heat preservation state.

[0036] In an achievable first ventilation scenario, the first reference information includes but is not limited to the current working state of the heat exchange device, the first temperature of the environment in which the water heater is located, and the input command; at this time, the first reference information is used to determine the target air outlet of the heat exchange device of the water heater in the first ventilation scenario. In practical applications, the first ventilation scenario can be regarded as a daily ventilation scenario.

[0037] In an achievable second ventilation scenario, the first reference information includes but is not limited to the first preset time period, the current time, and the second temperature of the environment in which the water heater is located; at this time, the first reference information is used to determine the target air outlet of the heat exchange device of the water heater in the second ventilation scenario. In practical applications, the second ventilation scenario can be regarded as a holiday ventilation scenario.

[0038] The execution subject of this embodiment may be a water heater, which has functions such as data processing, data communication, and program operation. Generally, the operation of each component in the water heater can be driven by a core controller / processor, so the execution subject of this embodiment may also be the controller / processor in the water heater.

[0039] Step 102: Determine a target air outlet of a heat exchange device of a water heater according to first reference information.

[0040] In an embodiment of the present application, when the first reference information is obtained, the air outlet of the heat exchange device of the water heater corresponding to the first reference information can be flexibly determined, that is, the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device is selected as the target air outlet.

[0041] Step 103: Control outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet.

[0042] The target air outlet includes an indoor air outlet of a heat exchange device or an outdoor air outlet of a heat exchange device.

[0043] In an embodiment of the present application, when the air outlet of the heat exchange device of the water heater corresponding to the first reference information is determined, the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device.

[0044] Exemplarily, in the first ventilation scenario, when it is determined that the air outlet of the heat exchange device of the water heater corresponding to the current working state of the heat exchange device, the first temperature of the environment in which the water heater is located, and the input instruction is the outdoor air outlet of the heat exchange device, the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device and discharged from the outdoor air outlet. During this period, the negative pressure generated in the water heater draws the indoor air to the outdoors, thereby controlling the water heater for ventilation and improving the indoor air quality.

[0045] Exemplarily, in the second ventilation scenario, when it is determined that the air outlet of the heat exchange device of the water heater corresponding to the first preset time period, the current time and the second temperature of the environment in which the water heater is located is the outdoor air outlet of the heat exchange device, the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device and discharged from the outdoor air outlet. During this period, the negative pressure generated in the water heater draws the indoor air to the outdoors, thereby controlling the water heater for ventilation and improving the indoor air quality.

[0046] A control method for a water heater provided in an embodiment of the present application comprises the steps of acquiring first reference information; determining a target air outlet of a heat exchange device of the water heater according to the first reference information; controlling outdoor air to be introduced from an outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet comprises an indoor air outlet of the heat exchange device or an outdoor air outlet of the heat exchange device; flexibly selecting an air outlet of the heat exchange device of the water heater according to the first reference information, wherein the first reference information in different ventilation scenarios is different in the present application, so that after outdoor air is introduced, it can be selectively discharged from the indoor air outlet or the outdoor air outlet of the heat exchange device, thereby realizing intelligent control with the help of the water heater.

[0047] In some embodiments of the present application, the first reference information includes the current working state of the heat exchange device. Step 102 determines the target air outlet of the heat exchange device of the water heater according to the first reference information, which can be achieved by the following steps:

[0048] If the current working state is a non-heating water state, the target air outlet is determined to be an outdoor air outlet of the heat exchange device.

[0049] That is to say, when it is determined that the current working state is a non-heating water state, the outdoor air outlet of the heat exchange device is used as the target air outlet. At this time, when it is determined that the current working state is a non-heating water state, the water heater is controlled for ventilation.

[0050] Furthermore, step 103 controls the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet, which can be achieved by the following steps:

[0051] The fan assembly of the water heater is controlled to be turned on for a first time period, and outdoor air is introduced from an outdoor air inlet of a heat exchange device of the water heater and discharged from an outdoor air outlet of the heat exchange device.

[0052] Among them, the value of the first duration can be set according to actual needs, and this application does not make any specific limitation on this.

[0053] That is to say, when it is determined that the water heater is controlled for ventilation when it is not in the hot water production state, the fan assembly of the water heater is turned on for ventilation for a first period of time, and outdoor air is introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the outdoor air outlet of the heat exchange device. When the first period of time ends, the ventilation is stopped.

[0054] Exemplarily, in the first ventilation scenario, when the current working state of the heat exchange device is a non-heating water state, the target air outlet of the heat exchange device of the water heater is determined to be the outdoor air outlet of the heat exchange device, and the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the outdoor air outlet, thereby controlling the water heater to perform ventilation for a first period of time to improve the indoor air quality.

[0055] In some embodiments of the present application, the first reference information includes the current working state of the heat exchange device and the first temperature of the environment in which the water heater is located. Step 102 determines the target air outlet of the heat exchange device of the water heater according to the first reference information, which can be achieved by the following steps:

[0056] If the current working state is the hot water state and the first temperature does not meet the cold recovery condition, the target air outlet is determined to be the outdoor air outlet of the heat exchange device. The first temperature does not meet the cold recovery condition, including: the first temperature is less than the temperature threshold, or the first temperature is not within the preset temperature range.

[0057] That is to say, when it is determined that the current working state is the hot water making state and the first temperature does not meet the cold recovery condition, the outdoor air outlet of the heat exchange device is used as the target air outlet. At this time, the water heater can choose not to perform cold recovery according to the first temperature in the hot water making state, that is, determine the outdoor air outlet as the cold air exhaust outlet.

[0058] Furthermore, when the first reference information also includes an input instruction, step 102 determines the target air outlet of the heat exchange device of the water heater according to the first reference information, which can be achieved by the following steps:

[0059] If the current working state is a hot water making state, the first temperature satisfies the cold recovery condition, and the input instruction indicates not to perform cold recovery, the target air outlet is determined to be an outdoor air outlet of the heat exchange device.

[0060] The input command includes but is not limited to the user's input command received by the water heater, that is, when the water heater is in the hot water making state, if the first temperature meets the cold recovery condition, but the input command received by the water heater indicates not to perform cold recovery, the outdoor air outlet is still determined as the cold air outlet. In this way, the matching degree between the ventilation and air exchange of the water heater and the cold recovery demand in the current ventilation scenario is improved, and the intelligence of the water heater is further improved.

[0061] If the current working state is a hot water making state, the first temperature satisfies the cold recovery condition, and the input instruction indicates cold recovery, the target air outlet is determined to be the indoor air outlet of the heat exchange device.

[0062] Here, when the water heater is in the hot water making state, if the first temperature satisfies the cold recovery condition and the input command received by the water heater indicates cold recovery, the indoor air outlet is determined as the cold air outlet. In this way, the matching degree between the ventilation of the water heater and the cold recovery demand in the current ventilation scene is improved. It can be seen that the water heater of the present application not only has the function of ventilation, but also can meet the cold recovery demand in different ventilation scenes.

[0063] Further, when it is determined that the target air outlet is the outdoor air outlet of the heat exchange device, step 103 controls the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet, which can be achieved by the following steps:

[0064] If the working state of the heat exchange device is switched from the hot water making state to the non-hot water making state, the fan assembly of the water heater is controlled to open for a second time period, and outdoor air is introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the outdoor air outlet of the heat exchange device.

[0065] Here, when the water heater is in the water-making state, if the first temperature does not meet the cold recovery condition, or the input instruction received by the water heater indicates that cold recovery is not to be performed, the working state of the heat exchange device is switched from the water-making state to the non-water-making state, that is, high-speed ventilation is performed after the water heater finishes heating.

[0066] Further, when the target air outlet is determined to be the indoor air outlet of the heat exchange device, step 103 controls the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet, which can also be achieved by the following steps:

[0067] The fan assembly of the water heater is controlled to be turned on for a third time, outdoor air is introduced from the outdoor air inlet of the heat exchange device of the water heater, and discharged from the indoor air outlet of the heat exchange device; the third time can be determined based on the rotation speed of the fan assembly.

[0068] Exemplarily, in the first ventilation scenario, when the current working state of the heat exchange device is the hot water making state, and the first temperature of the environment in which the water heater is located does not meet the cold recovery condition, the target air outlet is determined to be the outdoor air outlet of the heat exchange device. When the working state of the heat exchange device is switched from the hot water making state to the non-hot water making state, the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the outdoor air outlet of the heat exchange device, thereby controlling the fan assembly of the water heater to perform ventilation for a second period of time to improve the indoor air quality.

[0069] Exemplarily, in the first ventilation scenario, when the current working state of the heat exchange device is the hot water making state, and the first temperature of the environment in which the water heater is located meets the cold recovery condition, and the input instruction is not a cold recovery instruction, the target air outlet is determined to be the outdoor air outlet of the heat exchange device. When the working state of the heat exchange device is switched from the hot water making state to the non-hot water making state, the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the outdoor air outlet of the heat exchange device, thereby controlling the fan assembly of the water heater to perform ventilation for the second period of time to improve the indoor air quality.

[0070] Exemplarily, in the first ventilation scenario, when the current working state of the heat exchange device is the hot water making state, and the first temperature of the environment in which the water heater is located meets the cold recovery condition, and the input instruction is a cold recovery instruction, the target air outlet is determined to be the indoor air outlet of the heat exchange device, and the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the indoor air outlet of the heat exchange device, thereby controlling the fan assembly of the water heater to perform cold air recovery for a third period of time to reduce the indoor air temperature.

[0071] In some embodiments of the present application, the first reference information further includes a first preset time period, a current time, and a second temperature of the environment in which the water heater is located. Step 102 determines the target air outlet of the heat exchange device of the water heater according to the first reference information, which can be achieved by the following steps:

[0072] If the current time satisfies a first relationship with the first preset time period, and the second temperature does not satisfy the cold recovery condition, the target air outlet is determined to be the outdoor air outlet of the heat exchange device.

[0073] The first preset time period may be a pre-set time period, including the current time advancing with time, and determining the time advancement progress of the current time in the first preset time period based on the first preset time period.

[0074] The first relationship may be that the time progress in the first preset period at the current time reaches 80% of the first preset period. The first preset period may also be that the current time is a specific day in the first preset period.

[0075] Further, if a first relationship is satisfied between the current time and the first preset time period, and the second temperature satisfies a cold recovery condition, the target air outlet is determined to be an indoor air outlet of the heat exchange device.

[0076] Here, the first relationship between the current time and the first preset period includes: the current time is a certain time within the first preset period and / or the current time progress reaches the preset progress of the first preset period. The preset progress can be set according to actual needs, for example, 80%.

[0077] Further, when the target air outlet is determined to be the indoor air outlet of the heat exchange device, step 103 controls the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet, which can also be achieved by the following steps:

[0078] The fan assembly of the water heater is controlled to be turned on for a third time period, so that outdoor air is introduced from an outdoor air inlet of a heat exchange device of the water heater and discharged from an outdoor air outlet of the heat exchange device.

[0079] Further, when the target air outlet is determined to be the indoor air outlet of the heat exchange device, step 103 controls the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet, which can also be achieved by the following steps:

[0080] The water heater is controlled to enter a sterilization mode. During the sterilization process, the fan assembly of the water heater is controlled to open for a third period of time, and outdoor air is introduced from an outdoor air inlet of a heat exchange device of the water heater and discharged from an indoor air outlet of the heat exchange device.

[0081] Exemplarily, in the second ventilation scenario, when the current time satisfies the first relationship with the first preset time period, and the second temperature does not meet the cold recovery condition, the target air outlet is determined to be the outdoor air outlet of the heat exchange device, and the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device and discharged from the outdoor air outlet of the heat exchange device, thereby controlling the fan assembly of the water heater to start ventilation for the third duration to improve the indoor air quality.

[0082] Exemplarily, in the second ventilation scenario, when the current time satisfies the first relationship with the first preset time period, and the second temperature does not meet the cold recovery condition, the fan assembly of the water heater is controlled to start ventilation for a third period of time, and then the water heater is controlled to enter the sterilization mode to achieve sterilization and disinfection of the water heater.

[0083] Exemplarily, in the second ventilation scenario, when the current time satisfies the first relationship with the first preset time period, and the second temperature satisfies the cold recovery condition, the target air outlet is determined to be the indoor air outlet of the heat exchange device, and the water heater is controlled to enter the sterilization mode. During the sterilization process, outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device and discharged from the indoor air outlet of the heat exchange device, thereby controlling the fan assembly of the water heater to perform cold air recovery for a third period of time, thereby reducing the indoor air temperature and achieving sterilization and disinfection of the water heater.

[0084] In some embodiments of the present application, the first reference information also includes the current time and the non-hot water production working period of the heat exchange device in the historical period. Step 102 determines the target air outlet of the heat exchange device of the water heater according to the first reference information, which can be achieved by the following steps:

[0085] If the first condition is satisfied between the current time and the non-hot water production working period, the target air outlet is determined to be the outdoor air outlet of the heat exchange device.

[0086] Furthermore, step 103 controls the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet, which can be achieved by the following steps:

[0087] If the first condition indicates that the current time is within the non-hot water production working period, the fan assembly of the water heater is controlled to start and run at a first speed, so that outdoor air is introduced from the outdoor air inlet of the heat exchange device of the water heater and discharged from the indoor air outlet of the heat exchange device;

[0088] If the first condition indicates that the difference between the current time and the time during the non-hot water production working period is less than the difference threshold, the fan assembly of the water heater is controlled to turn on and operate at a second speed to introduce outdoor air from the outdoor air inlet of the heat exchange device of the water heater and discharge it from the indoor air outlet of the heat exchange device; the second speed is less than the first speed.

[0089] Exemplarily, in the first ventilation scenario, when the current time is within the non-hot water production working period, the target air outlet is determined to be the outdoor air outlet of the heat exchange device, and the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device and discharged from the outdoor air outlet of the heat exchange device, thereby controlling the fan assembly of the water heater to perform ventilation at a first speed to improve the indoor air quality.

[0090] Exemplarily, in the first ventilation scenario, when the difference between the current time and the time during the non-hot water production working period is less than the difference threshold, the target air outlet is determined to be the indoor air outlet of the heat exchange device, and the outdoor air is controlled to be introduced from the outdoor air inlet of the heat exchange device and discharged from the indoor air outlet of the heat exchange device, thereby controlling the fan assembly of the water heater to recover cold air at a second speed less than the first speed, thereby lowering the indoor temperature.

[0091] In the embodiment of the present application, the water heater can also perform initial setting of the ventilation mode, see Figure 2 As shown, the user can make initial settings and / or timely adjustments to the relevant parameters in the ventilation mode when using the water heater. Exemplarily, when the user uses the ventilation function of the water heater for the first time, the room area and room height can be input on the ventilation mode setting interface of the water heater, and then the water heater determines the initial settings of the ventilation mode according to the input parameters. Of course, the input parameters can also include input ventilation time, such as minimum ventilation time, medium ventilation time, maximum ventilation time, ventilation frequency, etc.; the water heater can also perform initial settings of the ventilation mode according to the above more detailed input parameters.

[0092] Exemplarily, the initial setting parameters of the ventilation mode include but are not limited to ventilation time and / or ventilation frequency. The ventilation time can be determined according to the historical working time of the water heater, and the ventilation frequency can be customized by the user or defaulted to once a day or determined by the water heater.

[0093] The control method of the water heater provided in the present application can calculate the ventilation time according to the usage of the water heater, that is, the area and height of the room, which can not only ensure the ventilation effect but also be energy-saving; in addition, according to the working time of the water heater, the ventilation time period is selected, which can quickly ventilate and the ventilation frequency can be reasonably set.

[0094] A schematic diagram of a control device for a water heater provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the control device 300 includes: an acquisition module 301, a determination module 302 and a control module 303, wherein:

[0095] An acquisition module 301 is used to acquire first reference information;

[0096] A determination module 302, configured to determine a target air outlet of a heat exchange device of the water heater according to the first reference information;

[0097] The control module 303 is used to control the outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet includes the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device.

[0098] In some embodiments of the present application, the determination module 302 is used to determine that the target air outlet is the outdoor air outlet of the heat exchange device if the current working state is a non-heating water state.

[0099] In some embodiments of the present application, the control module 303 is used to control the fan assembly of the water heater to be turned on for a first period of time, so as to introduce outdoor air from the outdoor air inlet of the heat exchange device and discharge it from the outdoor air outlet of the heat exchange device.

[0100] In some embodiments of the present application, the first reference information includes the current working state of the heat exchange device and the first temperature of the environment in which the water heater is located; the determination module 302 is used to determine that the target air outlet is the outdoor air outlet of the heat exchange device if the current working state is the hot water making state and the first temperature does not meet the cold recovery condition.

[0101] In some embodiments of the present application, the first reference information also includes an input instruction; a determination module 302 is used to determine that the target air outlet is the outdoor air outlet of the heat exchange device if the current working state is a hot water making state, the first temperature meets the cold recovery condition and the input instruction is not a cold recovery instruction.

[0102] In some embodiments of the present application, the control module 303 is used to control the fan component of the water heater to turn on for a second period of time if the working state of the heat exchange device is switched from a hot water making state to a non-hot water making state, so as to introduce outdoor air from an outdoor air inlet of the heat exchange device and discharge it from an outdoor air outlet of the heat exchange device.

[0103] In some embodiments of the present application, the first reference information also includes an input instruction; a determination module 302 is used to determine that the target air outlet is the indoor air outlet of the heat exchange device if the current working state is a hot water making state, the first temperature meets the cold recovery condition and the input instruction is a cold recovery instruction.

[0104] In some embodiments of the present application, the control module 303 is used to control the fan assembly of the water heater to start for a third time period, to introduce outdoor air from the outdoor air inlet of the heat exchange device and to discharge it from the indoor air outlet of the heat exchange device; the third time period is determined based on the rotation speed of the fan assembly.

[0105] In some embodiments of the present application, the first reference information also includes a first preset time period, the current time, and a second temperature of the environment in which the water heater is located; a determination module 302 is used to determine that the target air outlet is the outdoor air outlet of the heat exchange device if a first relationship is satisfied between the current time and the first preset time period, and the second temperature does not satisfy the cold recovery condition.

[0106] In some embodiments of the present application, the control module 303 is used to control the fan assembly of the water heater to open for a third time period, so as to introduce outdoor air from the outdoor air inlet of the heat exchange device and discharge it from the outdoor air outlet of the heat exchange device.

[0107] In some embodiments of the present application, the determination module 302 is used to determine that the target air outlet is the indoor air outlet of the heat exchange device if the current time satisfies the first relationship with the first preset time period and the second temperature satisfies the cold recovery condition.

[0108] In some embodiments of the present application, the control module 303 is used to control the water heater to enter a sterilization mode. During the sterilization process, the fan assembly of the water heater is controlled to turn on for a third period of time, and outdoor air is introduced from the outdoor air inlet of the heat exchange device and discharged from the indoor air outlet of the heat exchange device.

[0109] In some embodiments of the present application, the first reference information also includes the current time and the non-hot water production working period of the heat exchange device in the historical period; the determination module 302 is used to determine that the target air outlet is the outdoor air outlet of the heat exchange device if the first condition is met between the current time and the non-hot water production working period.

[0110] In some embodiments of the present application, the control module 303 is used to control the fan component of the water heater to start and operate at a first speed if the first condition indicates that the current time is within the non-hot water production working period, so as to introduce outdoor air from the outdoor air inlet of the heat exchange device and discharge it from the indoor air outlet of the heat exchange device;

[0111] If the first condition indicates that the difference between the current time and the time during the non-hot water production working period is less than the difference threshold, the fan assembly of the water heater is controlled to turn on and operate at a second speed to introduce outdoor air from the outdoor air inlet of the heat exchange device and discharge it from the indoor air outlet of the heat exchange device; the second speed is less than the first speed.

[0112] In addition, each functional module in this embodiment can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software functional modules.

[0113] A schematic diagram of the structure of a water heater provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the water heater 400 comprises:

[0114] A main shell 401 is provided with a heat exchange device 402 in the main shell, and the main shell is provided with an outdoor air inlet 4-1 of the heat exchange device, an outdoor air outlet 4-21 of the heat exchange device, and an indoor air outlet 4-22 of the heat exchange device; wherein the outdoor air inlet and the outdoor air outlet are connected to form a first air duct, and outdoor air is introduced from the outdoor air inlet, flows through the first air duct and is discharged from the outdoor air outlet; the outdoor air inlet and the indoor air outlet are connected to form a second air duct, and indoor air is introduced from the outdoor air inlet, flows through the second air duct and is discharged from the indoor air outlet;

[0115] The heat exchange device 402 is used to heat the water in the water tank of the water heater;

[0116] Memory 403, used to store executable instructions;

[0117] The processor 404 is used to execute the executable instructions stored in the memory to implement the aforementioned water heater control method.

[0118] The embodiment of the present application provides a water heater, Figure 4 and Figure 5 As shown, the water heater 400 comprises:

[0119] A main shell 401, on which an outdoor air inlet 4-1 of a heat exchange device, an outdoor air outlet 4-21 of the heat exchange device and an indoor air outlet 4-22 of the heat exchange device are arranged; the outdoor air inlet 4-1 of the heat exchange device and the outdoor air outlet 4-21 of the heat exchange device are connected to form a ventilation passage, and the outdoor air is discharged from the outdoor air outlet 4-21 of the heat exchange device to the outside through the ventilation passage after the outdoor air is exchanged with heat by the heat exchange device from the outdoor air inlet 4-1 of the heat exchange device; the outdoor air inlet 4-1 of the heat exchange device and the indoor air outlet 4-22 of the heat exchange device are connected to form a cold air recovery passage, and the outdoor air is discharged from the indoor air outlet 4-22 of the heat exchange device to the inside through the cold air recovery passage after the outdoor air inlet 4-1 of the heat exchange device and the indoor air outlet 4-22 of the heat exchange device;

[0120] The control valve plate 4-3 is used to select the corresponding channel according to whether the cold recovery function is started. When the control valve plate 4-3 is in position A, the indoor valve is opened, and the air from the heat exchange device is discharged into the room through the cold air recovery channel from the indoor air outlet 4-22 of the heat exchange device; when the control valve plate 4-3 is in position B, the outdoor valve is opened, and the air from the heat exchange device is discharged to the outside through the ventilation channel from the outdoor air outlet 4-21 of the heat exchange device;

[0121] Memory 403, used to store executable instructions;

[0122] The processor 404 is used to execute the executable instructions stored in the memory to implement the implementation process of the control method of the water heater provided above, which will not be repeated here.

[0123] Below, taking the actual ventilation scenario, using the control method of the water heater provided by the present application as an example, the control method of the water heater in the daily ventilation mode provided by the present application is described:

[0124] See also Figure 6As shown, S601, turn on the daily ventilation mode. When the daily ventilation mode is turned on, the user can select the automatic ventilation mode option or select the user start option. S602, the user selects the automatic ventilation mode option; at this time, the automatic ventilation mode is entered. The ventilation frequency in the automatic ventilation mode can be customized by the user. If the user does not make any changes, the ventilation frequency defaults to once a day, and the ventilation period is the non-working time of the heat pump. S603, the water heater counts the non-working time of the heat pump in the past week. Thereby determining the user's use of the water heater in the past week. S604, determine whether the heat pump has a non-working time period of 10:00am-15:00pm in the past week. S605, if yes, it indicates that in the current automatic ventilation mode, the 10:00am-15:00pm time period can be selected as the ventilation time, that is, the 10:00am-15:00pm time period is selected to control the fan to run at a high speed for ventilation. S606. If it does not exist, at this time, you can select a time period close to 10:00am-15:00pm, and control the fan to run at a low speed to perform ventilation. It is understandable that the time period close to 10:00am-15:00pm can be within the preset time period before 10:00am, and / or within the preset time period after 15:00pm. If the heat pump has been used for less than a week, ventilation will be performed at 15:00pm by default. In addition, the heat pump is automatically corrected once a month during non-working hours. It is understandable that the historical non-working time can be used as a reference time period for starting ventilation, and can be set according to actual usage needs to achieve ventilation control when the heat pump is not producing hot water.

[0125] S607. The user selects the user start option; at this time, the user starts the ventilation mode. S608. Determine whether the heat pump is in the working state of making hot water. S609. If yes, it indicates that the current heat pump is in the working state of making hot water, and determines whether to recycle the cold air generated in the working process of the heat pump making hot water. It is necessary to continue to determine whether the trigger time of the ventilation mode is a high temperature period in summer. S610. If yes, it indicates that the ambient temperature is high at this time, then further determine whether to start the cold air recovery function to cool down. S611. If yes, it indicates that the conditions for cold recovery are currently met, start the cold recovery function, control the indoor valve to open, control the fan to start, and automatically select the ventilation time according to the current fan gear, and perform cold air recovery for a period of time. In other words, according to Figure 6 According to the judgment conditions in the above table, ventilation is turned on when the heat pump is in the hot water production state during the high temperature of summer, so that the water heater can start the cold recovery function while the heat pump is producing hot water. Figure 6 It can be seen that when the cold recovery conditions are met, the valve inside the control room is opened and the control Figure 5The heat pump air outlet control valve plate 4-3 is turned to position A, and the cold air generated by the heat pump is discharged into the room from the heat pump indoor air outlet 4-22 through the cold air recovery channel, which can fully utilize the cold air generated by the heat pump and achieve the purpose of lowering the room temperature.

[0126] Further, S607, when the user selects the user start option, it is determined that the heat pump is in a non-hot water working state, then it can be known that the cold recovery condition is not met at present, and the process goes to step S612. S612, directly start the ventilation function, control the outdoor valve to open, and control the fan to run at a high speed for a duration of t H Combined with ventilation Figure 6 It can be seen that when the cold recovery conditions are not met, the control room outer valve is opened, that is, the control Figure 5 The control valve plate 4-3 in the heat pump is moved to the B position, and the outdoor fresh air is discharged to the outside through the ventilation channel from the outdoor air outlet 4-21 of the heat pump. During this period, the dirty air in the room is pumped out to the outside with the help of the fan, and the outdoor fresh air flows into the room for replenishment due to the air pressure. The ventilation cycle is carried out in this way, thereby ensuring smooth ventilation and fresh indoor air.

[0127] Further, S607, when the user selects the user start option, determine whether the heat pump is in the working state of making hot water. S609, if yes, it indicates that the heat pump is currently in the working state of making hot water, and continue to determine whether the trigger time of the ventilation mode is the high temperature period in summer. S613, if no, it indicates that the ambient temperature is not high and there is no need to recover cold air, that is, the conditions for cold recovery are not met at present. At this time, since the heat pump is in the working state of making hot water, the ventilation function is started after the heat pump finishes making hot water, the control room outer valve is opened, and the fan is controlled to run at a high speed for a time of t H Similarly, combined with Figure 6 It can be seen that when the cold recovery conditions are not met, the control room outer valve is opened, that is, the control Figure 5 When the control valve plate 4-3 in the heat pump is turned to position B, the cold air generated by the heat pump is discharged to the outside through the ventilation channel from the outdoor air outlet 4-21 of the heat pump, so that the room temperature will not be too low to affect the user experience during non-summer high temperature periods, thereby ensuring the comfort of the indoor air environment.

[0128] It can be seen that the control method of the water heater provided in the present application, by adding a judgment condition for cold recovery in the daily ventilation mode, can control the water heater to produce hot water and recover the cold air generated by the heat pump during the high temperature in summer. This not only improves the energy utilization rate and reduces energy waste, but also reduces the problem of excessively high room temperature in the user's room during the high temperature in summer to a certain extent, ensures the comfort of the room, and improves the user's comfort.

[0129] Next, taking the actual ventilation scenario, in which the user is away on vacation, as an example, the control method of the water heater provided by the present application is used to control the water heater in the holiday ventilation mode provided by the present application.

[0130] See also Figure 7 As shown, S701, turn on the holiday ventilation mode. S702, in the case of the holiday ventilation mode, set the holiday preset days Dv and the holiday preset water temperature Tv, and start timing. Among them, Tv defaults to 15°C, and the user sets it between the range of 15-20°C; the setting range of Dv is 1-365. S703, the water heater defaults to the day before the end of the holiday, that is, when the actual holiday days Ds = the holiday preset days Dv-1, the water heater is controlled to enter the working state, and the holiday hot water making mode and holiday ventilation mode are turned on to facilitate the user to have a fresh air environment and a suitable hot water temperature after returning home. First, S704, obtain the actual ambient temperature Tam. S705, determine whether the actual ambient temperature Tam is greater than the preset ambient temperature Tset. S706, if yes, it indicates that the current ambient temperature is high, and the trigger time of the current ventilation mode is the high temperature period in summer, and cold recovery is required, so the holiday cold recovery function is started. S707, in the case of the holiday ventilation mode, when performing holiday cold recovery, the water heater is controlled to start the mixed mode for sterilization. S708: During the sterilization process, the heat pump of the water heater is in operation and discharges cold air. The valve inside the control room is opened, and the fan is turned on to recover the cold air for a period of time. S712: After the sterilization is completed, the water temperature of the water heater is controlled to be the preset water temperature Tv for the holiday, so as to restore the temperature setting state before the end of the holiday. Figure 5 The heat pump air outlet control valve plate 4-3 is turned to position A, and the cold air generated by the heat pump is discharged into the room from the heat pump indoor air outlet 4-22 through the cold air recovery channel, which can make full use of the cold air generated by the heat pump to lower the room temperature, which is conducive to users having a better temperature experience after returning home.

[0131] Further, S705, if it is determined that the actual ambient temperature Tam is less than the preset ambient temperature Tset, then the trigger time of the current ventilation mode is determined to be a non-summer high temperature period. S709, start the holiday ventilation function. S710, in the case of the holiday ventilation mode, when ventilation is performed, the control room outer valve is opened, and the fan is controlled to run at a high speed for a duration of t H The control room is open to control the ventilation. Figure 5The control valve plate 4-3 in the heat pump is moved to position B, and the outdoor fresh air is discharged to the outside through the ventilation channel from the outdoor air outlet 4-21 of the heat pump. During this period, the dirty air in the room is pumped out to the outside with the help of the fan, and the outdoor fresh air flows into the room for replenishment due to air pressure reasons. The ventilation is circulated in this way, thereby ensuring smooth ventilation and fresh indoor air. When the ventilation time is reached, the outdoor valve is controlled to close and the ventilation is ended. S711. Control the water heater to enter the mixed mode for sterilization. S712. After the sterilization is completed, the water temperature of the water heater is controlled to be the preset water temperature Tv for the holiday, thereby restoring the temperature setting state before the end of the holiday.

[0132] It can be seen that the control method of the water heater provided in the present application, by adding a judgment condition for cold recovery in the holiday ventilation mode, allows ventilation and air exchange to be performed in advance and hot water sterilization to be completed at the same time the day before the end of the user's holiday. It can also perform cold air recovery during the high temperature period in summer to reduce the indoor air temperature, improve the indoor air quality, and provide healthy and comfortable hot water. When the user returns home after the holiday, he can directly experience a better indoor environment and healthy and comfortable hot water, which improves energy utilization, reduces energy waste, ensures the comfort of the room, and improves the user's comfort.

[0133] The embodiment of the present application provides a computer-readable storage medium, which stores one or more programs, and the one or more programs can be executed by one or more processors to implement the following. Figure 1 The implementation process of the water heater control method provided in the corresponding embodiment will not be repeated here.

[0134] The above-mentioned computer storage medium / memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory (Flash Memory), a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM) and the like; it can also be various terminals including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0135] It should be understood that the "one embodiment" or "an embodiment" or "an embodiment of the present application" or "the aforementioned embodiment" or "some embodiments" or "some implementation methods" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" or "an embodiment of the present application" or "the aforementioned embodiment" or "some embodiments" or "some implementation methods" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The above-mentioned sequence numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments.

[0136] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0137] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0138] In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be a separate unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0139] The methods disclosed in several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0140] The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0141] The features disclosed in several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0142] A person skilled in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), magnetic disks or optical disks, etc., various media that can store program codes.

[0143] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can be essentially or partly embodied in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0144] It is worth noting that the drawings in the embodiments of the present application are only for illustrating the schematic positions of various components on the terminal device and do not represent the actual positions in the terminal device. The actual positions of various components or areas may be changed or offset accordingly according to actual conditions (for example, the structure of the terminal device), and the proportions of different parts of the terminal device in the drawings do not represent the actual proportions.

[0145] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for controlling a water heater, characterized in that: The method comprises: obtaining first reference information; determining a target air outlet of a heat exchange device of the water heater according to the first reference information; Controlling outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet includes the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device.

2. The control method according to claim 1, characterized in that: The first reference information includes a current working state of the heat exchange device; and determining a target air outlet of the heat exchange device according to the first reference information includes: If the current working state is a non-heating water state, the target air outlet is determined to be an outdoor air outlet of the heat exchange device.

3. The control method according to claim 2, characterized in that: The controlling outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet comprises: The fan assembly of the water heater is controlled to be turned on for a first period of time, so that outdoor air is introduced from an outdoor air inlet of the heat exchange device and discharged from an outdoor air outlet of the heat exchange device.

4. The control method according to claim 1, characterized in that: The first reference information includes the current working state of the heat exchange device and the first temperature of the environment in which the water heater is located; and determining the target air outlet of the heat exchange device of the water heater according to the first reference information includes: If the current working state is a hot water making state and the first temperature does not satisfy a cold recovery condition, the target air outlet is determined to be an outdoor air outlet of the heat exchange device.

5. The control method according to claim 4, characterized in that: The first reference information further includes an input instruction; and determining the target air outlet of the heat exchange device of the water heater according to the first reference information includes: If the current working state is a hot water making state, the first temperature satisfies a cold recovery condition, and the input instruction is not a cold recovery instruction, the target air outlet is determined to be an outdoor air outlet of the heat exchange device.

6. The control method according to claim 4 or 5, characterized in that: The controlling outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet comprises: If the working state of the heat exchange device is switched from the hot water making state to the non-hot water making state, the fan assembly of the water heater is controlled to be turned on for a second time period to introduce outdoor air from the outdoor air inlet of the heat exchange device and discharge it from the outdoor air outlet of the heat exchange device.

7. The control method according to claim 4, characterized in that: The first reference information further includes an input instruction; and determining the target air outlet of the heat exchange device of the water heater according to the first reference information includes: If the current working state is a hot water making state, the first temperature satisfies a cold recovery condition, and the input instruction is a cold recovery instruction, the target air outlet is determined to be an indoor air outlet of the heat exchange device.

8. The control method according to claim 7, characterized in that: The controlling outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet comprises: The fan assembly of the water heater is controlled to be turned on for a third time period, so that outdoor air is introduced from the outdoor air inlet of the heat exchange device and discharged from the indoor air outlet of the heat exchange device; the third time period is determined based on the rotation speed of the fan assembly.

9. The control method according to claim 1, characterized in that: The first reference information further includes a first preset time period, a current time, and a second temperature of the environment in which the water heater is located; and determining a target air outlet of the heat exchange device of the water heater according to the first reference information includes: If a first relationship is satisfied between the current time and the first preset time period, and the second temperature does not satisfy a cold recovery condition, the target air outlet is determined to be an outdoor air outlet of the heat exchange device.

10. The control method according to claim 9, characterized in that: The controlling outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet comprises: The fan assembly of the water heater is controlled to be turned on for a third time period, so that outdoor air is introduced from the outdoor air inlet of the heat exchange device and discharged from the outdoor air outlet of the heat exchange device.

11. The control method according to claim 9, characterized in that: The step of determining a target air outlet of a heat exchange device of the water heater according to the first reference information further includes: If a first relationship is satisfied between the current time and the first preset time period, and the second temperature satisfies a cold recovery condition, the target air outlet is determined to be the indoor air outlet of the heat exchange device.

12. The control method according to claim 11, characterized in that: The controlling outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet comprises: The water heater is controlled to enter a sterilization mode. During the sterilization process, the fan assembly of the water heater is controlled to be turned on for a third period of time to introduce outdoor air from an outdoor air inlet of the heat exchange device and discharge it from an indoor air outlet of the heat exchange device.

13. The control method according to claim 1, characterized in that: The first reference information also includes the current time and the non-hot water production working period of the heat exchange device in the historical period; determining the target air outlet of the heat exchange device of the water heater according to the first reference information includes: If a first condition is satisfied between the current time and the non-hot water production working period, the target air outlet is determined to be the outdoor air outlet of the heat exchange device.

14. The control method according to claim 13, characterized in that: The controlling outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet comprises: If the first condition indicates that the current time is within the non-hot water production working period, the fan assembly of the water heater is controlled to be turned on and run at a first speed to introduce outdoor air from the outdoor air inlet of the heat exchange device and discharge it from the indoor air outlet of the heat exchange device; If the first condition indicates that the difference between the current time and the time during the non-hot water production working period is less than a difference threshold, the fan assembly of the water heater is controlled to turn on and operate at a second speed to introduce outdoor air from the outdoor air inlet of the heat exchange device and discharge it from the indoor air outlet of the heat exchange device; the second speed is less than the first speed.

15. A control device for a water heater, comprising: An acquisition module, used for acquiring first reference information; a determination module, configured to determine a target air outlet of a heat exchange device of the water heater according to the first reference information; A control module is used to control outdoor air to be introduced from the outdoor air inlet of the heat exchange device and discharged from the target air outlet; wherein the target air outlet includes the indoor air outlet of the heat exchange device or the outdoor air outlet of the heat exchange device.

16. A water heater, characterized in that: include: A main shell, a heat exchange device is arranged in the main shell, and an outdoor air inlet of the heat exchange device, an outdoor air outlet of the heat exchange device, and an indoor air outlet of the heat exchange device are arranged on the main shell; wherein the outdoor air inlet and the outdoor air outlet are connected to form a first air duct, outdoor air is introduced from the outdoor air inlet, flows through the first air duct and is discharged from the outdoor air outlet; the outdoor air inlet and the indoor air outlet are connected to form a second air duct, indoor air is introduced from the outdoor air inlet, flows through the second air duct and is discharged from the indoor air outlet; The heat exchange device is used to heat the water in the water tank of the water heater; A memory for storing executable instructions; The processor is used to execute the executable instructions stored in the memory to implement the control method of the water heater.

17. A computer-readable storage medium, characterized in that: Executable instructions are stored, and when the executable instructions are executed, they are used to cause the processor to execute the control method of the water heater according to any one of claims 1 to 14.

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