Control method of water heater fan, water heater, equipment, medium and product

Abstract

The invention discloses a control method of a water heater fan, a water heater, equipment, a medium and a product, and relates to the technical field of household appliances. The method comprises the steps that when a starting instruction of the water heater is received, the water heater fan is controlled to operate based on a first rotating direction and a first rotating speed, heating work is started, and first operating power of the water heater fan is obtained; and when it is determined that the water heater draught fan meets the draught fan reverse rotation operation condition according to the first operation power, the water heater draught fan is controlled to operate in a reverse rotation mode so as to maintain heating work. According to the technical scheme, by means of the mode that the fan of the water heater alternately rotates forwards and reversely, the influence of the ultrahigh pressure difference between the indoor side and the outdoor side on heating work is avoided, and it is ensured that the water heater can safely, stably and continuously execute heating work in a basement with single-channel ventilation.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a control method for a water heater fan, a water heater, equipment, a medium and a product. Background Art

[0002] Water heaters are commonly used household appliances in people's lives. In order to improve the aesthetics of buildings, avoid noise interference and freeze the machines, nowadays, more and more users install air source heat pump water heaters in idle spaces such as basements, garages, and utility rooms.

[0003] However, in order to prevent moisture, water, insects and rodents, idle spaces such as basements, garages and utility rooms are highly sealed and have poor air circulation. Most basements, garages and utility rooms do not have reserved holes for water heater installation in advance, nor are they suitable for drilling holes. Therefore, only an air duct can be installed on the small hole corresponding to the exhaust fan. When installing an air source heat pump water heater, the air outlet of the water heater is connected to the outdoor side through the wall hole behind the air duct, and the air inlet is directly opened on the indoor side to meet the ventilation needs.

[0004] However, the heating work of the air source heat pump water heater requires the water heater fan to draw air from the indoor side for heating and heat exchange tasks, and discharge the heat-exchanged air to the outdoors through the air duct. As the water heater performs the heating work, the indoor air gradually becomes less, and the pressure difference between the indoor and outdoor sides will become larger and larger. Once the pressure difference between the indoor and outdoor sides exceeds the stable operating range of the fan, the fan's air volume will drop rapidly, the heat pump water heater will frequently frost, and may even be unable to perform normal heating work.

[0005] Therefore, it is an urgent problem to propose a heating method for air source heat pump water heaters installed in idle spaces such as basements, garages, and utility rooms, and to ensure that the air source heat pump water heaters can operate safely, stably and continuously perform heating work based on single-channel ventilation. Summary of the invention

[0006] The present invention provides a control method for a water heater fan, a water heater, a device, a medium and a product. The water heater fan is operated in a forward and reverse rotation mode alternately to avoid the influence of the ultra-high pressure difference between the indoor and outdoor sides on the heating operation, thereby ensuring that the water heater can safely, stably and continuously perform heating operations in spaces such as basements with single-channel ventilation.

[0007] According to one aspect of the present invention, a method for controlling a fan of a water heater is provided, the method comprising:

[0008] When receiving a start-up instruction of the water heater, controlling the water heater fan to operate based on a first direction and a first speed, starting the heating operation, and obtaining a first operating power of the water heater fan;

[0009] When it is determined according to the first operating power that the water heater fan meets the fan reverse operation condition, the water heater fan is controlled to reversely operate to maintain the heating operation.

[0010] The control method of the water heater fan of the present invention includes: when receiving the start-up instruction of the water heater, controlling the water heater fan to operate based on the first direction and the first speed, starting the heating operation, and obtaining the first operating power of the water heater fan; when it is determined according to the first operating power that the water heater fan meets the fan reverse operation condition, controlling the water heater fan to reversely operate to maintain the heating operation. The technical solution of the present invention utilizes the water heater fan to work alternately in forward and reverse rotation to avoid the influence of the ultra-high pressure difference between the indoor and outdoor sides on the heating operation, ensuring that the water heater can safely, stably and continuously perform heating work in spaces such as basements with single-channel ventilation. It solves the problem that in the one-way exhaust heating method, as the water heater performs the heating operation, the air on the indoor side gradually becomes less, and the pressure difference between the indoor side and the outdoor side becomes larger and larger, so that the fan can operate stably while maintaining high air volume and high energy efficiency.

[0011] According to another aspect of the present invention, there is provided a water heater, the water heater comprising:

[0012] a control module, configured to, upon receiving a start-up instruction of the water heater, control the water heater fan to operate based on a first direction and a first speed, start heating, and obtain a first operating power of the water heater fan;

[0013] The adjustment module is used to control the water heater fan to reversely operate so as to maintain heating operation when it is determined according to the first operating power that the water heater fan meets the fan reverse operation condition.

[0014] According to another aspect of the present invention, there is provided an electronic device, the electronic device comprising:

[0015] at least one processor; and a memory communicatively coupled to the at least one processor;

[0016] The memory stores a computer program executable by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the control method of the water heater fan in any embodiment of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for implementing the control method of the water heater fan in any embodiment of the present invention when the computer instructions are executed by a processor.

[0018] According to another aspect of the present invention, a computer program product is provided. The computer program product includes a computer program. When the computer program is executed by a processor, the control method of the water heater fan of any embodiment of the present invention is implemented.

[0019] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a flow chart of a control method of a water heater fan provided by the present invention;

[0022] Figure 2 It is a schematic diagram of the forward rotation of a water heater fan provided by the present invention;

[0023] Figure 3 It is a schematic diagram of the reversal of a water heater fan provided by the present invention;

[0024] Figure 4 It is a flow chart of another method for controlling a water heater fan provided by the present invention;

[0025] Figure 5 It is a structural schematic diagram of a water heater provided by the present invention;

[0026] Figure 6 It is a structural schematic diagram of an electronic device provided by the present invention.

[0027] Reference numerals:

[0028] 1-outdoor environment, 2-wall hole, 3-indoor environment, 4-water heater, 5-water heater fan, 6-air duct. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention 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 data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] Figure 1 This is a flow chart of a control method for a water heater fan provided by the present invention. This embodiment can be applied to air source heat pump water heaters installed in idle spaces such as basements, garages, utility rooms, etc. to safely, stably and continuously perform heating tasks. The method can be executed by the electronic device provided by the present invention. The water heater can be implemented in the form of hardware and / or software. In a specific embodiment, the water heater can be integrated into an electronic device. The following embodiments will be described by taking the water heater integrated into an electronic device as an example. Figure 1 , the method specifically comprises the following steps:

[0032] S101. When a start instruction of the water heater is received, a fan of the water heater is controlled to operate based on a first direction and a first speed, a heating operation is started, and a first operating power of the fan of the water heater is obtained.

[0033] Among them, the start-up indication of the water heater is used to instruct the water heater to start heating. When the water heater starts heating, it will run according to the speed and direction set in advance. The direction set in advance is the forward direction of the water heater fan, that is, the first direction. Based on the first direction, the water heater fan extracts air from the indoor side for heating and heat exchange tasks, and discharges the heat-exchanged air to the outdoor side through the air duct. At this time, the air flows from the indoor side to the outdoor side. The first speed can be understood as the speed in the forward control program of the water heater fan. The speed can be set and adjusted according to the equipment parameters, operating environment and control requirements of the water heater. The operating power of the water heater fan refers to the electric power consumed by the fan during actual operation. The first operating power can be understood as the electric power consumed by the water heater fan during forward operation.

[0034] In one embodiment, the operating power of the water heater fan is closely related to factors such as the air volume, air pressure, and efficiency of the fan. The operating power of the water heater fan can be obtained by detecting the air volume and air pressure of the water heater fan and combining the fan efficiency and mechanical transmission efficiency of the water heater fan. Among them, the air volume can be calculated based on the cross-sectional area of ​​the air duct and the wind speed measured by the anemometer. The wind pressure is the pressure difference between the inlet and outlet of the fan measured by the pressure sensor. The fan efficiency is related to the model of the fan and the actual operating conditions, which can be obtained from the technical manual. The mechanical transmission efficiency is related to the connection method of the fan and the motor, and can be determined based on the connection method of the fan and the motor. Specifically, the operating power of the water heater fan Q represents air volume, P represents air pressure, K represents air volume 1 Indicates the motor capacity reserve factor, generally between 1.1 and 1.3, η 1 Indicates fan efficiency, the value range is generally 0.7 to 0.8, η 2 It represents the mechanical transmission efficiency and can be selected according to the transmission mode. For example, it is 1 when the motor is directly connected, and it is 0.98 when the coupling is directly connected.

[0035] S102: When it is determined according to the first operating power that the fan of the water heater meets the fan reverse operation condition, the fan of the water heater is controlled to reversely operate to maintain heating operation.

[0036] Among them, the fan reverse operation condition is used to judge whether the forward operation mode of the water heater fan is close to the limit state. As the water heater performs heating work, the indoor air gradually becomes less, the pressure difference between the indoor and outdoor sides will become larger and larger, and the power consumed by the forward rotation of the water heater becomes larger and larger. When the pressure difference between the indoor and outdoor sides exceeds the stable operation range of the fan, it is considered that the forward operation mode of the water heater fan is close to the limit state and needs to be controlled, otherwise the heat pump water heater will frequently frost and even fail to perform normal heating work. The control method of the present invention is to reverse the water heater and continue to operate, that is, control the water heater fan to extract the air on the outdoor side for heating and heat exchange tasks, and discharge the heat exchanged air to the indoor side through the air duct. As the reverse work is performed, the pressure difference between the indoor and outdoor sides is alleviated, and the water heater fan can be in a stable operating environment to ensure the stability of the water heater's heating work.

[0037] Furthermore, when the fan is reversed, the pressure difference between the indoor and outdoor sides first decreases and then increases. When the reverse operation continues for a certain period of time, the pressure difference between the indoor and outdoor sides will increase again. If the pressure difference exceeds the range within which the fan can operate stably, the water heater will be controlled to rotate forward, and this cycle will be repeated. By alternating the forward and reverse rotation of the fan, it is ensured that the water heater can stably heat idle spaces such as basements, garages, and utility rooms for a long time. It is worth noting that the present invention will perform interference supplementation when the fan is reversed, that is, the indoor air has a positive pressure difference with the outdoor air. The advantage of this arrangement is that it can reduce the number of switching times of the fan direction, improve heating efficiency, and extend the service life of the fan.

[0038] Optionally, as the pressure difference between the indoor and outdoor sides increases, the power required for the operation of the water heater fan increases, and whether the water heater fan meets the fan reverse operation conditions is determined, including: determining whether the first operating power is greater than or equal to a preset forward power threshold; if the first operating power is greater than or equal to the preset forward power threshold, determining that the water heater fan meets the fan reverse operation conditions; if the first operating power is less than the preset forward power threshold, determining that the water heater fan does not meet the fan reverse operation conditions.

[0039] The first operating power is a real-time power. The present invention will detect the air volume, wind pressure, efficiency and other parameters of the water heater fan in real time, and update the power value of the first operating power in real time. The preset forward power threshold can be understood as the maximum power value at which the water heater fan can stably rotate forward. When the first operating power is greater than or equal to the preset forward power threshold, it is necessary to control the water heater fan to reverse to ensure that the water heater can stably perform heating work. It is considered that the water heater fan meets the fan reverse operation conditions. Otherwise, it is considered that the water heater fan does not meet the fan reverse operation conditions. The advantage of this setting is that the basis for judging the reversal of the water heater fan can be quantified, and the reversal timing of the water heater fan can be accurately controlled.

[0040] Figure 2 It is a schematic diagram of the forward rotation of a water heater fan provided by the present invention. Figure 3 1 is a schematic diagram of a water heater fan provided by the present invention, in which 1 represents the outdoor environment, 2 represents the wall hole, 3 represents the indoor environment, 4 represents the water heater, 5 represents the water heater fan, 6 represents the air duct, and the arrow represents the air flow direction. Figure 2 and Figure 3 It can be seen that when the water heater fan rotates forward, the indoor air flows to the outdoor side, and when the water heater fan rotates reversely, the outdoor air flows to the indoor side.

[0041] The technical solution of the above embodiment utilizes the water heater fan to work alternately in forward and reverse rotation to avoid the influence of the ultra-high pressure difference between the indoor and outdoor sides on the heating work, ensuring that the water heater can safely, stably and continuously perform heating work in spaces such as basements with single-channel ventilation. It solves the problem that in the one-way exhaust heating method, as the water heater performs heating work, the air on the indoor side gradually becomes less and the pressure difference between the indoor and outdoor sides becomes larger and larger, so that the fan can operate stably while maintaining high air volume and high energy efficiency.

[0042] Figure 4 FIG. 1 is a flow chart of another method for controlling a water heater fan provided by the present invention. Based on the above embodiment, a preferred method for controlling a water heater fan is provided. The method specifically includes:

[0043] S201. When a start instruction of the water heater is received, the water heater fan is controlled to operate based on a first direction and a first speed, a heating operation is started, and a first operating power of the water heater fan is obtained.

[0044] In this embodiment, the water heater start indication is used to indicate that the water heater starts heating. When the water heater starts heating, it will run according to the first speed and first direction set in advance. The first direction is the direction of the water heater fan that makes the indoor air flow to the outdoor side. The present invention defines the first direction as the forward direction of the fan. The first speed can be understood as the speed in the forward control program of the water heater fan. The operating power of the water heater fan refers to the electric power consumed by the fan during the actual operation process. The first operating power can be understood as the electric power consumed by the water heater fan during the forward operation process.

[0045] S202: If the first operating power is greater than or equal to a preset forward power threshold, obtain a first operating time of the water heater fan.

[0046] The preset forward power threshold can be understood as the maximum power value at which the water heater fan can stably run forward. When the first operating power is greater than or equal to the preset forward power threshold, it is considered that the forward control of the water heater fan is in a critical state. In order to ensure that the water heater stably performs heating work, it is necessary to control the water heater fan to reverse, that is, to determine that the water heater fan meets the fan reverse operation conditions. The present invention defines one forward operation plus one reverse operation of the water heater fan as a complete operation cycle, and the first operation duration is the time that the water heater fan runs based on the first direction in the current operation cycle.

[0047] Specifically, during the forward operation, the fan continuously pumps indoor air to the outdoors. As the operation time increases, the indoor air becomes less and less, and the negative pressure difference between the indoor air and the outdoor air continues to increase, which will cause the fan wind pressure to increase and the first operating power to increase. When the first operating power reaches the preset forward power threshold, the fan needs to be reversed to pump outdoor air to supplement the indoor side, otherwise the water heater will frequently frost and even fail to perform normal heating work. In order to maintain heating work, the compressor of the water heater fan of the present invention does not stop during the process of switching the direction.

[0048] S203, determining that the direction of the water heater fan is the second direction and the speed is the second speed.

[0049] Among them, the first direction and the second direction are opposite, and the second direction can be understood as the reversal direction of the water heater fan. When the water heater fan operates based on the first direction, the air flow flows from indoors to outdoors. When the water heater fan operates based on the second direction, the air flow flows from outdoors to indoors. The second speed is greater than the first speed. Generally, the second speed is the highest stable operating speed of the water heater fan. The purpose of this setting is to reduce the air back-pumping time of the water heater and reduce the impact of the pressure difference on the heating operation.

[0050] S204, determining a target reversal duration of the water heater fan based on the first rotation speed, the second rotation speed, the first operating duration and the reversal time coefficient, and controlling the water heater fan to operate based on the second direction, the second rotation speed and the target reversal duration.

[0051] The target reversal time can be understood as the total time of the water heater fan reversal, and the reversal time coefficient can be understood as the time coefficient required to calculate the target reversal time. Specifically, the target reversal time T2 = K*(F1 / F2)*T1, where K represents the reversal time coefficient, F1 represents the first speed, F2 represents the second speed, and T1 represents the first operating time.

[0052] Specifically, the first speed ranges from 300 to 800 r / min, the second speed ranges from 700 to 1200 r / min, the K ranges from 0.1 to 2.0, the preset forward power threshold ranges from 15 to 50 W, and the preset reverse power threshold ranges from 25 to 70 W.

[0053] S205: Obtain a second operating time and a second operating power of the water heater fan.

[0054] The second operation duration is the time difference between the current moment and the start moment of the water heater fan based on the second switching operation in the current operation cycle. The method for determining the second operation power is the same as the first operation power, and the present invention will not be elaborated here.

[0055] S206: When the second operating time is not less than the target reversal time, or the second operating power is greater than or equal to the preset reversal power threshold, return to the step of controlling the water heater fan to operate based on the first direction and the first speed.

[0056] Among them, the second operation time is not less than the target reversal time, indicating that the reversal operation time of the water heater fan has arrived, and the next operation cycle needs to be started. The preset reversal power threshold is similar to the preset forward power threshold. The preset reversal power threshold is the maximum power value at which the water heater fan can stably reverse. When the second operation power is greater than or equal to the preset reversal power threshold, it is considered that the pressure difference between the indoor and outdoor sides exceeds the range in which the fan can stably operate, and the water heater needs to be controlled to operate in the opposite direction of the current direction, that is, forward operation, to ensure that the water heater can stably perform heating work. The direction of the reverse operation can be regarded as starting the next operation cycle.

[0057] In a specific example, assuming that F1=500r / min, F2=1200r / min, K=0.6, the preset forward power threshold PS1=40W, and the preset reverse power threshold PS2=60W. After the water heater is turned on, the fan rotates forward and the speed is F1 (500r / min). At the beginning, the first operating power P1=25W. If P1 rises to PS1 (i.e. 40W) after running for t1 (120min), the fan is switched to the reverse direction and runs at F2 (1200r / min) to replenish air to the indoor side. K*(F1 / F2)*t1=0.6×(500 / 1200)×120=30min. When the cumulative time t2 of the reverse operation reaches 30min or the second operating power P2 rises to PS2 (i.e. 60W), t1 and t2 are reset, the fan is switched back to the forward direction, and a new round of operation cycle begins.

[0058] The control method of the water heater fan of the present invention further includes: if a defrost instruction and / or a shutdown instruction is received, the current heating operation is stopped, and when the water heater is operating normally, the step of controlling the water heater fan to operate based on the first direction and the first speed is returned to. The purpose of such a setting is to prevent the water heater from performing the heating operation when it is not suitable for heating, thereby protecting the water heater.

[0059] The technical solution of this embodiment utilizes the alternating forward and reverse rotation of the water heater fan to avoid the influence of the ultra-high pressure difference between the indoor and outdoor sides on the heating work, ensuring that the water heater can safely, stably and continuously perform heating work in spaces such as basements with single-channel ventilation. It solves the problem that in the one-way exhaust heating method, as the water heater performs heating work, the air on the indoor side gradually becomes less, and the pressure difference between the indoor and outdoor sides will become larger and larger. If the pressure difference between the indoor and outdoor sides exceeds the stable operating range of the fan, the air volume of the fan will drop rapidly, the heat pump water heater will frequently frost, and even fail to perform normal heating work.

[0060] Figure 5 Schematic diagram of the structure of a water heater provided by the present invention. Figure 5 As shown, the water heater includes: a control module 301 and an adjustment module 302 .

[0061] The control module 301 is used to control the water heater fan to operate based on a first direction and a first speed when receiving a start instruction of the water heater, start the heating operation, and obtain a first operating power of the water heater fan.

[0062] The adjustment module 302 is used to control the water heater fan to reversely operate to maintain heating operation when it is determined according to the first operating power that the water heater fan meets the fan reverse operation condition.

[0063] Optionally, the adjustment module 302 is specifically used to: determine whether the first operating power is greater than or equal to a preset forward power threshold; if the first operating power is greater than or equal to the preset forward power threshold, determine that the water heater fan meets the fan reverse operation condition; if the first operating power is less than the preset forward power threshold, determine that the water heater fan does not meet the fan reverse operation condition.

[0064] Optionally, the adjustment module 302 is specifically used to: obtain a first operating time of the water heater fan; the first operating time is the time that the water heater fan runs based on the first direction in the current operating cycle; determine that the direction of the water heater fan is the second direction, the speed is the second speed, the first direction and the second direction are opposite, the second speed is greater than the first speed, when the water heater fan runs based on the first direction, the air flow flows from indoors to outdoors, and when the water heater fan runs based on the second direction, the air flow flows from outdoors to indoors; based on the first speed, the second speed, the first operating time and the reversal time coefficient, determine the target reversal time of the water heater fan, and control the water heater fan to operate based on the second direction, the second speed and the target reversal time.

[0065] Optionally, the adjustment module 302 is also used to: after controlling the water heater fan to operate based on the second direction, the second speed and the target reversal time, obtain the second operating time and the second operating power of the water heater fan, wherein the second operating time is the time difference between the current moment and the start moment of the water heater fan based on the second direction in the current operating cycle; when the second operating time is not less than the target reversal time, or the second operating power is greater than or equal to the preset reversal power threshold, return to execute the step of controlling the water heater fan to operate based on the first direction and the first speed.

[0066] Optionally, the target reversal time T2 = K*(F1 / F2)*T1, wherein K represents the reversal time coefficient, F1 represents the first rotational speed, F2 represents the second rotational speed, and T1 represents the first operating time.

[0067] Optionally, the adjustment module 302 is further used to: if a defrost indication and / or a shutdown indication is received, stop the current heating operation, and when the water heater operates normally, return to execute the step of controlling the water heater fan to operate based on the first direction and the first speed.

[0068] The water heater provided in this embodiment can execute the control method of the water heater fan provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0069] Figure 6 Schematic diagram of the structure of an electronic device provided by the present invention. Figure 6 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (also called random access memory, RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, ROM 12 and RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0070] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, a remote controller, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0071] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a control method for a water heater fan.

[0072] In some embodiments, the control method of the water heater fan can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the control method of the water heater fan described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to execute the control method of the water heater fan in any other appropriate manner (for example, by means of firmware).

[0073] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0074] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0075] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0076] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0077] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server) or a computing system that includes middleware components (e.g., an application server) or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein) or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0078] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0079] In one embodiment, the present invention further includes a computer program product, the computer program product includes a computer program, and when the computer program is executed by a processor, the control method of the water heater fan of any embodiment of the present invention is implemented.

[0080] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present invention, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, through the Internet using an Internet service provider).

[0081] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0082] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for controlling a water heater fan, characterized in that: include: When receiving a start-up instruction of the water heater, controlling the water heater fan to operate based on a first direction and a first speed, starting the heating operation, and obtaining a first operating power of the water heater fan; When it is determined according to the first operating power that the water heater fan meets the fan reverse operation condition, the water heater fan is controlled to reversely operate to maintain the heating operation.

2. The method according to claim 1, characterized in that Determining whether the water heater fan meets the fan reverse operation condition includes: Determining whether the first operating power is greater than or equal to a preset forward power threshold; If the first operating power is greater than or equal to the preset forward power threshold, it is determined that the water heater fan meets the fan reverse operation condition; If the first operating power is less than the preset forward power threshold, it is determined that the water heater fan does not meet the fan reverse operation condition.

3. The method according to claim 1, characterized in that The controlling the water heater fan to reversely operate comprises: Acquire a first operating time of the water heater fan; wherein the first operating time is the time during which the water heater fan operates based on the first steering direction in a current operating cycle; Determine that the direction of the water heater fan is a second direction and the speed is a second speed, wherein the first direction and the second direction are opposite, the second speed is greater than the first speed, and when the water heater fan operates based on the first direction, the air flow flows from indoors to outdoors, and when the water heater fan operates based on the second direction, the air flow flows from outdoors to indoors; Based on the first speed, the second speed, the first operating time and the reversal time coefficient, a target reversal time of the water heater fan is determined, and the water heater fan is controlled to operate based on the second direction, the second speed and the target reversal time.

4. The method according to claim 3, characterized in that After controlling the water heater fan to run based on the second direction, the second speed and the target reversal time, the method further includes: Acquire a second operating time and a second operating power of the water heater fan, wherein the second operating time is a time difference between a current moment and a start moment of the water heater fan based on the second steering operation in a current operating cycle; When the second operating time is not less than the target reversal time, or the second operating power is greater than or equal to a preset reversal power threshold, return to the step of controlling the water heater fan to operate based on the first direction and the first speed.

5. The method according to claim 4, characterized in that The target reversal time length T2=K*(F1 / F2)*T1, wherein K represents the reversal time coefficient, F1 represents the first rotation speed, F2 represents the second rotation speed, and T1 represents the first operating time length.

6. The method according to claim 1, characterized in that Also includes: If a defrost instruction and / or a shutdown instruction is received, the current heating operation is stopped, and when the water heater operates normally, the process returns to the step of controlling the water heater fan to operate based on the first direction and the first speed.

7. A water heater, characterized in that: include: a control module, configured to, upon receiving a start-up instruction of the water heater, control a fan of the water heater to operate based on a first direction and a first speed, start heating, and obtain a first operating power of the fan of the water heater; The adjustment module is used to control the water heater fan to reversely operate when it is determined according to the first operating power that the water heater fan meets the fan reverse operation condition, so as to maintain the heating operation.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the control method for the water heater fan according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the control method of a water heater fan according to any one of claims 1 to 6 when executed.

10. A computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the control method of a water heater fan according to any one of claims 1 to 6.

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