Temperature control method and device for outdoor unit of water heater, storage medium and split type heat pump water heater

Abstract

The invention discloses a water heater outdoor unit temperature control method and device, a storage medium and a split type heat pump water heater, and relates to the technical field of water heater control. Determining a corresponding outdoor unit target temperature according to the current outdoor environment temperature; and the current temperature of the outdoor unit of the water heater is controlled through the target temperature of the outdoor unit. The air supply temperature of the outdoor unit can be reduced through the cooling capacity of the outdoor unit evaporator, and the electric control heat exchange effect is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of water heater control, and in particular to a method, device, storage medium and split-type heat pump water heater for controlling the temperature of an external unit of a water heater. Background Art

[0002] The outdoor heat exchanger of the variable frequency heat pump water heater is used as an evaporator, and its evaporation temperature is basically below 30℃. The wind flowing through the evaporator in the outdoor unit air duct exchanges heat with the heat exchanger, and the wind temperature drops. After the wind temperature drops, it is more conducive to the heat dissipation of the outdoor electric control.

[0003] The current evaporation temperature control logic of the outdoor heat exchanger of the variable frequency heat pump water heater is based on a pre-designed superheat control, which cannot flexibly adjust the temperature, resulting in poor heat dissipation effect. Summary of the invention

[0004] The main purpose of the present application is to provide a method, device, storage medium and split heat pump water heater for controlling the temperature of the outdoor unit of a water heater, aiming to solve the technical problem that the outdoor electric control heat dissipation effect is poor due to the fixed temperature control of the outdoor unit of the existing water heater.

[0005] To achieve the above purpose, the present application proposes a method for controlling the temperature of an external unit of a water heater, the method comprising:

[0006] Get the current outdoor ambient temperature;

[0007] Determining a corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and

[0008] The current temperature of the water heater external unit is controlled by the external unit target temperature.

[0009] In one embodiment, the step of determining the corresponding outdoor unit target temperature according to the current outdoor ambient temperature includes:

[0010] Comparing the current outdoor ambient temperature with a preset ambient temperature threshold to obtain a comparison result; and

[0011] The corresponding outdoor unit target temperature is determined according to the comparison result.

[0012] In one embodiment, the step of determining the corresponding outdoor unit target temperature according to the comparison result includes:

[0013] When the comparison result is that the current outdoor ambient temperature is greater than the preset ambient temperature threshold, obtaining the current outdoor fan speed; and

[0014] The corresponding outdoor fan target temperature is determined by the current outdoor fan speed and the current outdoor ambient temperature.

[0015] In one embodiment, the step of determining the corresponding outdoor fan target temperature according to the current outdoor fan speed and the current outdoor ambient temperature includes:

[0016] Acquire a first mapping relationship between an external fan speed and a first temperature coefficient;

[0017] Acquire a second mapping relationship between the outdoor ambient temperature and the second temperature coefficient; and

[0018] The corresponding outdoor fan target temperature is determined according to the first mapping relationship, the second mapping relationship, the current outdoor fan speed, and the current outdoor ambient temperature.

[0019] In one embodiment, the step of determining the corresponding outdoor fan target temperature according to the first mapping relationship, the second mapping relationship, the current outdoor fan speed, and the current outdoor ambient temperature includes:

[0020] Obtaining a current first temperature coefficient according to the first mapping relationship and the current external fan speed;

[0021] Obtaining a current second temperature coefficient according to the second mapping relationship and the current outdoor ambient temperature;

[0022] Obtaining a preset temperature range constant value and a preset constant value; and

[0023] The target temperature of the external fan is calculated according to the preset temperature range constant value, the preset constant value, the current first temperature coefficient and the current second temperature coefficient.

[0024] In one embodiment, the step of determining the corresponding outdoor unit target temperature according to the comparison result includes:

[0025] When the comparison result is that the current outdoor ambient temperature is less than or equal to the preset ambient temperature threshold, the current temperature of the water heater outdoor unit is used as the outdoor unit target temperature.

[0026] In one embodiment, the step of controlling the current temperature of the water heater external unit by the external unit target temperature includes:

[0027] Determining a target opening of the regulating valve according to the target temperature of the external unit; and

[0028] The regulating valve is adjusted according to the target opening of the regulating valve, and the current temperature of the outdoor unit of the water heater is adjusted to the target temperature of the outdoor unit.

[0029] In addition, to achieve the above purpose, the present application also proposes a temperature control device for an external unit of a water heater, the temperature control device for an external unit of a water heater comprising:

[0030] An acquisition module is used to obtain the current outdoor ambient temperature;

[0031] a determination module, configured to determine a corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and

[0032] The control module is used to control the current temperature of the water heater external unit through the external unit target temperature.

[0033] In addition, to achieve the above-mentioned objectives, the present application also proposes a split-type heat pump water heater, which includes: an external unit and an internal unit, and the split-type heat pump water heater also includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the method for controlling the temperature of the external unit of the water heater as described above.

[0034] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the water heater outdoor unit temperature control method as described above are implemented.

[0035] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the water heater outdoor unit temperature control method as described above are implemented.

[0036] One or more technical solutions proposed in this application obtain the current outdoor ambient temperature; determine the corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and control the current temperature of the water heater outdoor unit by the outdoor unit target temperature. By utilizing the cooling capacity of the outdoor unit evaporator, the outdoor unit supply air temperature can be reduced to enhance the electric control heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 A flow chart of the first embodiment of the method for controlling the temperature of the external unit of the water heater of the present application;

[0040] Figure 2 A simplified schematic diagram of a split-type heat pump water heater provided in an embodiment of the present application;

[0041] Figure 3 A flow chart of the second embodiment of the method for controlling the temperature of the external unit of the water heater of the present application;

[0042] Figure 4 A schematic diagram of a simplified flow chart of a method for controlling the temperature of a water heater external unit provided in the second embodiment of the present application;

[0043] Figure 5 This is a schematic diagram of the module structure of the temperature control device for the water heater external unit according to an embodiment of the present application;

[0044] Figure 6 Schematic diagram of the equipment structure of the hardware operating environment involved in the temperature control method of the water heater external unit in the embodiment of the present application.

[0045] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0047] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0048] The main solution of the embodiment of the present application is: obtaining the current outdoor ambient temperature; determining the corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and controlling the current temperature of the water heater outdoor unit by the outdoor unit target temperature.

[0049] Since the evaporation temperature control logic of the outdoor heat exchanger of the conventional variable frequency heat pump water heater is based on a pre-designed superheat control, the maximum temperature is not set according to the ambient temperature and the electric control heat dissipation requirements, the maximum advantage of the electric control heat dissipation is not fully utilized, thus limiting the system's capabilities.

[0050] The present application provides a solution by setting the maximum temperature by considering the ambient temperature and the electronically controlled heat dissipation requirements, thereby adjusting the current temperature of the outdoor unit of the water heater according to the maximum temperature, improving the cooling capacity of the outdoor unit evaporator, reducing the outdoor unit supply air temperature, and enhancing the electronically controlled heat exchange effect.

[0051] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a water heater external unit temperature control device, etc. The following takes the water heater external unit temperature control device as an example to illustrate this embodiment and the following embodiments.

[0052] Based on this, the embodiment of the present application provides a method for controlling the temperature of the external unit of a water heater, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the temperature control method for the outdoor unit of a water heater of the present application.

[0053] In this embodiment, the water heater external unit temperature control method includes steps S10 to S30:

[0054] Step S10: Obtain the current outdoor ambient temperature.

[0055] It should be noted that if Figure 2 As shown, Figure 2 This is a simple schematic diagram of a split-type heat pump water heater. In a split-type heat pump water heater, the outdoor heat exchanger acts as an evaporator. When the ambient air passes through the evaporator, the air will be cooled. The cooled cold air will then pass through the air-cooled electric control box to dissipate heat, cooling the radiator. When the outdoor unit is placed in an air-conditioning installation position with an air-conditioning grille, the outdoor air outlet of the heat pump water heater is restricted, resulting in an abnormally high return air temperature of the outdoor unit. At this time, the heat dissipation of the electric control deteriorates and the heat dissipation effect is poor. If the evaporation temperature is appropriately lowered at this time to ensure that the split-type heat pump water heater operates at a suitable frequency and flow rate, the heat exchange capacity of the outdoor unit can be further improved, and the capacity and energy efficiency of the heat pump system can be improved.

[0056] It should be understood that the current outdoor ambient temperature can be detected by a temperature sensor arranged outdoors.

[0057] Step S20: determining a corresponding outdoor unit target temperature according to the current outdoor ambient temperature and the current outdoor fan speed.

[0058] It should be noted that the current outdoor ambient temperature is related to the operating temperature of the outdoor unit. Therefore, the optimal target temperature can be determined by the current outdoor ambient temperature. The outdoor unit target temperature is the temperature at which the heat generation of the electronic chip of the electric control board does not exceed the standard.

[0059] Step S30: controlling the current temperature of the water heater external unit by the external unit target temperature.

[0060] In a specific implementation, the current temperature of the water heater external unit can be adjusted by the external unit target temperature, so that the current temperature of the water heater external unit is adjusted to the external unit target temperature.

[0061] In a feasible implementation, step S30 may include steps S31 to S32:

[0062] Step S31: determining the target opening of the regulating valve according to the target temperature of the outdoor unit.

[0063] It should be noted that the temperature can be adjusted by adjusting the opening of the regulating valve. The regulating valve (usually an electronic expansion valve or a thermal expansion valve) is a key component for controlling the refrigerant flow rate. The target opening of the regulating valve is determined according to the target temperature of the outdoor unit, and the regulating valve is adjusted accordingly to ensure that the current temperature of the outdoor unit of the water heater can reach the predetermined target temperature.

[0064] In specific implementation, the required opening of the regulating valve to achieve the target temperature can be calculated by an algorithm, which may involve complex control logic and models, and factors to be considered include but are not limited to the current temperature, ambient temperature, external fan speed, etc.

[0065] Step S32: adjusting the regulating valve according to the target opening of the regulating valve, and adjusting the current temperature of the outdoor unit of the water heater to the target temperature of the outdoor unit.

[0066] It should be noted that the current opening of the regulating valve can be adjusted by adjusting the target opening of the regulating valve, so as to adjust the current temperature of the water heater to the target temperature of the outdoor unit.

[0067] It should be understood that after the adjustment, the temperature of the outdoor unit may continue to be monitored, and the opening of the regulating valve may be dynamically adjusted according to the deviation between the actual temperature and the target temperature until the temperature of the outdoor unit stabilizes at the target temperature.

[0068] This embodiment provides a method for controlling the temperature of an outdoor unit of a water heater, by obtaining the current outdoor ambient temperature; determining the corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and controlling the current temperature of the outdoor unit of the water heater according to the outdoor unit target temperature. By utilizing the cooling capacity of the outdoor unit evaporator, the air supply temperature of the outdoor unit can be reduced, thereby enhancing the electric control heat exchange effect.

[0069] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 3 , step S20 includes steps S201 to S202:

[0070] Step S201: Compare the current outdoor ambient temperature with a preset ambient temperature threshold to obtain a comparison result.

[0071] It should be noted that the preset ambient temperature threshold can be set in advance and can be set to 40 degrees Celsius, 45 degrees Celsius, etc. This embodiment does not limit this. By comparing the current outdoor ambient temperature with the preset ambient temperature threshold, it is determined whether the current outdoor ambient temperature is too high, and then it is determined whether the current temperature of the water heater needs to be adjusted.

[0072] The temperature range of the current ambient temperature is determined by comparing the monitored outdoor ambient temperature with a preset threshold.

[0073] The comparison result may be that the current outdoor ambient temperature is greater than the preset ambient temperature threshold or the current outdoor ambient temperature is less than or equal to the preset ambient temperature threshold. The ambient temperature threshold may be adjusted as required.

[0074] Step S202: determining the corresponding outdoor unit target temperature according to the comparison result.

[0075] It should be understood that the optimal outdoor unit target temperature, ie, the temperature to which the outdoor unit needs to be adjusted, may be determined based on the comparison result. When the comparison results are different, the corresponding outdoor unit target temperatures are different.

[0076] For example, different target temperatures can be set according to different ambient temperature thresholds to adapt to different heat loads and environmental conditions. The control system may use multiple thresholds, each threshold corresponding to a different target temperature. According to the determined outdoor unit target temperature, the operating state of the outdoor unit is adjusted through regulating valves and other control elements until the target temperature is reached.

[0077] Assume that the system has preset three ambient temperature thresholds: a low temperature threshold (eg, 10°C), a medium temperature threshold (eg, 20°C), and a high temperature threshold (eg, 30°C).

[0078] When the outdoor ambient temperature is below 10℃, the system may set a higher outdoor unit target temperature to improve heating capacity. When the outdoor ambient temperature is between 10℃ and 20℃, the system may set a medium outdoor unit target temperature to maintain a balance between energy efficiency and performance. When the outdoor ambient temperature is above 30℃, the system may set a lower outdoor unit target temperature to optimize heat dissipation and system stability.

[0079] In a feasible implementation, step S202 may include steps A11 to A13:

[0080] Step A11: when the comparison result is that the current outdoor ambient temperature is greater than the preset ambient temperature threshold, the current outdoor fan speed is obtained.

[0081] It should be noted that if the comparison result is that the current outdoor ambient temperature is greater than the preset ambient temperature threshold, it proves that the current outdoor ambient temperature is too high. At this time, the outdoor heat exchanger needs to consume a lot of time to cool the ambient wind or needs a very low temperature to quickly cool the ambient wind. At this time, the current outdoor fan speed can be obtained to further determine the optimal outdoor fan temperature. The current outdoor fan speed is the operating speed of the outdoor heat exchanger. The current outdoor fan speed can be obtained by sending a speed request to the outdoor heat exchanger, and the current outdoor fan speed can also be obtained directly from the data detected by the speed sensor.

[0082] Step A12: Determine the corresponding outdoor fan target temperature according to the current outdoor fan speed and the current outdoor ambient temperature.

[0083] In specific implementation, the current external fan speed and the current outdoor ambient temperature can be used for calculation to determine the corresponding external fan target temperature. The operating parameters of the external unit can be dynamically adjusted according to the change of the outdoor ambient temperature to improve the energy efficiency and performance of the system. For example, the heat dissipation efficiency can be improved by adjusting the external fan speed to protect the electronic control module from overheating.

[0084] In specific implementation, by adjusting the speed of the external fan, the air volume and wind speed of the evaporator can be changed, thereby affecting the heat exchange effect of the evaporator. In this way, the cooling capacity of the evaporator can be more effectively utilized to enhance the heat dissipation effect of the electric control box.

[0085] In a specific implementation, the target temperature of the external fan can be obtained by calculating the relationship between the external fan speed and the outdoor ambient temperature and the target temperature that the external fan needs to adjust. The corresponding temperature coefficient can also be determined according to the current external fan speed and the current outdoor ambient temperature, so as to calculate the target temperature of the external fan through the temperature coefficient.

[0086] In a feasible implementation, step A12 may include steps A121 to A123:

[0087] Step A121: Obtain a first mapping relationship between the external fan speed and the first temperature coefficient.

[0088] It should be understood that the first mapping relationship is the relationship between the external fan speed and the first temperature coefficient, and the first mapping relationship between the external fan speed and the first temperature coefficient can be obtained through a mapping relationship table.

[0089] As shown in Table 1, Table 1 is a first mapping relationship table between the rotation speed of the external fan and the first temperature coefficient.

[0090] Table 1

[0091] N f1(N) 300-350 -1 350-400 0 400-500 1 500-600 2 600-800 2.5

[0092] As shown in Table 1 above, Table 1 shows the relationship between the external fan speed and the first temperature coefficient. The linear relationship or nonlinear relationship between the external fan speed N and the first temperature coefficient f1(N) can be calculated according to Table 1. For example, if the current external fan speed is 650, the first temperature coefficient is 2.5. The relationship between the external fan speed and the first temperature coefficient can be adjusted according to the actual situation of the model, and the change rule can be optimized according to actual tests.

[0093] Step A122: Obtain a second mapping relationship between the outdoor ambient temperature and the second temperature coefficient.

[0094] In a specific implementation, the second mapping relationship is the relationship between the outdoor ambient temperature and the second temperature coefficient. The second mapping relationship between the outdoor ambient temperature and the second temperature coefficient can be obtained through a mapping relationship table. When at a specific speed, the influence of the T4 ambient temperature on the external evaporation temperature can be set with reference to the following Table 2. When N is 500 revolutions, the correspondence between f2(T4) and T4 can be referred to the following table, as shown in Table 2. Table 2 is a second mapping relationship table between the outdoor ambient temperature and the second temperature coefficient. The linear or nonlinear relationship between the outdoor ambient temperature and the second temperature coefficient is calculated according to Table 2. For example, if the current outdoor ambient temperature is 41 degrees Celsius, the second temperature coefficient is -2. The specific values ​​and corresponding relationships will vary depending on the configuration of different models.

[0095] Table 2

[0096] T4 f2(T4) 45-50 -3 40-45 -2 35-40 -1 30-35 0

[0097] Step A123: Determine a corresponding target temperature of the outdoor fan according to the first mapping relationship, the second mapping relationship, the current rotation speed of the outdoor fan, and the current outdoor ambient temperature.

[0098] It should be noted that the corresponding outdoor fan target temperature may be calculated according to the first mapping relationship, the second mapping relationship, the current outdoor fan speed, and the current outdoor ambient temperature.

[0099] Specifically, the current first temperature coefficient can be obtained through the current external fan speed and the first mapping relationship, and the current second temperature coefficient can be obtained through the current outdoor ambient temperature and the second mapping relationship, so as to calculate the external fan target temperature through the first temperature coefficient and the second temperature coefficient.

[0100] In a feasible implementation, step A123 may include: obtaining a current first temperature coefficient based on the first mapping relationship and the current external fan speed; obtaining a current second temperature coefficient based on the second mapping relationship and the current outdoor ambient temperature; obtaining a preset temperature range constant value and a preset constant value; and calculating the external fan target temperature based on the preset temperature range constant value, the preset constant value, the current first temperature coefficient and the current second temperature coefficient.

[0101] It should be noted that the current first temperature coefficient can be obtained through the first mapping relationship and the current external fan speed, and the current second temperature coefficient can be obtained through the current outdoor ambient temperature. The specific current first temperature coefficient and current second temperature coefficient can be obtained by querying Table 1 and Table 2 above.

[0102] The preset temperature interval constant is a constant set in a high temperature interval, such as 20 degrees Celsius, 25 degrees Celsius, etc. This embodiment is not limited to this, and this embodiment takes 20 degrees Celsius as an example for explanation. The preset constant value k can be set according to demand, such as 1, 3, etc. The target temperature of the external fan is calculated by the preset temperature interval constant value T3_0, the preset constant value k, and the first temperature coefficient and the second temperature coefficient, as shown in Formula 1:

[0103] T3=T3_0+f1(N)+f2(T4)+k(Formula 1)

[0104] In the above formula 1, T3 is the target temperature of the outdoor fan, that is, the temperature of the heat exchanger of the outdoor unit of the split-type heat pump water heater, which can be calculated by the above formula 1.

[0105] In a feasible implementation, step S202 may include step B11:

[0106] Step B11: when the comparison result is that the current outdoor ambient temperature is less than or equal to the preset ambient temperature threshold, the current temperature of the outdoor unit of the water heater is used as the outdoor unit target temperature.

[0107] It should be noted that if the comparison result is that the current outdoor ambient temperature is less than or equal to the preset ambient temperature threshold, it means that the current outdoor ambient temperature is low. The current temperature of the water heater outdoor unit can be directly used as the outdoor unit target temperature, thereby cooling the ambient temperature through the outdoor unit target temperature.

[0108] This embodiment compares the current outdoor ambient temperature with a preset ambient temperature threshold to obtain a comparison result; and determines the corresponding outdoor unit target temperature according to the comparison result. The intelligent control method based on ambient temperature changes enables the heat pump water heater to operate more flexibly and efficiently, thereby quickly determining the outdoor unit target temperature and improving the temperature control effect.

[0109] For example, in order to help understand the implementation process of the water heater external unit temperature control method obtained by combining this embodiment with the above-mentioned embodiment 1, please refer to Figure 4 , Figure 4 A brief flow chart of a method for controlling the temperature of an outdoor unit of a water heater is provided, specifically: detecting whether the current outdoor ambient temperature T4 is greater than a preset ambient temperature threshold value T4set, and if so, determining according to a specific logic, calculating the outdoor unit target temperature according to the outdoor fan speed and the current outdoor ambient temperature, thereby adjusting the valve opening based on the outdoor unit target temperature so that the outdoor unit operates at the target temperature, and if the current outdoor ambient temperature T4 is less than or equal to the preset ambient temperature threshold value T4set, the outdoor unit operates directly at the current temperature of the outdoor unit.

[0110] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the temperature control method of the water heater outdoor unit of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0111] This application also provides a temperature control device for the external unit of the water heater, please refer to Figure 5 , the temperature control device of the water heater external unit comprises:

[0112] The acquisition module 10 is used to acquire the current outdoor ambient temperature.

[0113] The determination module 20 is used to determine the corresponding outdoor unit target temperature according to the current outdoor ambient temperature.

[0114] The control module 30 is used to control the current temperature of the water heater external unit according to the external unit target temperature.

[0115] The water heater external unit temperature control device provided by the present application adopts the water heater external unit temperature control method in the above embodiment, which can solve the technical problem that the outdoor electric control heat dissipation effect is poor due to the fixed temperature control of the existing water heater external unit. Compared with the prior art, the beneficial effects of the water heater external unit temperature control device provided by the present application are the same as the beneficial effects of the water heater external unit temperature control method provided by the above embodiment, and other technical features of the water heater external unit temperature control device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0116] In one embodiment, the determination module 20 is further configured to compare the current outdoor ambient temperature with a preset ambient temperature threshold to obtain a comparison result; and determine a corresponding outdoor unit target temperature according to the comparison result.

[0117] In one embodiment, the determination module 20 is also used to obtain the current external fan speed when the comparison result is that the current outdoor ambient temperature is greater than the preset ambient temperature threshold; and determine the corresponding external fan target temperature through the current external fan speed and the current outdoor ambient temperature.

[0118] In one embodiment, the determination module 20 is also used to obtain a first mapping relationship between the external fan speed and the first temperature coefficient; obtain a second mapping relationship between the outdoor ambient temperature and the second temperature coefficient; and determine the corresponding external fan target temperature based on the first mapping relationship, the second mapping relationship, the current external fan speed, and the current outdoor ambient temperature.

[0119] In one embodiment, the determination module 20 is also used to obtain the current first temperature coefficient based on the first mapping relationship and the current outdoor fan speed; obtain the current second temperature coefficient based on the second mapping relationship and the current outdoor ambient temperature; obtain the preset temperature range constant value and the preset constant value; and calculate the outdoor fan target temperature based on the preset temperature range constant value, the preset constant value, the current first temperature coefficient and the current second temperature coefficient.

[0120] In one embodiment, the determination module 20 is further configured to use the current temperature of the water heater outdoor unit as the outdoor unit target temperature when the comparison result is that the current outdoor ambient temperature is less than or equal to a preset ambient temperature threshold.

[0121] In one embodiment, the control module 30 is further used to determine a target opening of the regulating valve according to the target temperature of the outdoor unit; and to adjust the regulating valve according to the target opening of the regulating valve to adjust the current temperature of the outdoor unit of the water heater to the target temperature of the outdoor unit.

[0122] The present application provides a split-type heat pump water heater comprising: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the water heater external unit temperature control method in the above-mentioned embodiment 1.

[0123] Reference below Figure 6 , which shows a schematic diagram of the structure of a split heat pump water heater suitable for implementing the embodiment of the present application. The split heat pump water heater in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The split-type heat pump water heater shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0124] like Figure 6As shown, the split-type heat pump water heater may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. Various programs and data required for the operation of the water heater outdoor unit temperature control device are also stored in RAM1004. The processing device 1001, ROM1002, and RAM1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the split heat pump water heater to communicate wirelessly or wired with other devices to exchange data. Although the split heat pump water heater with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0125] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0126] The split-type heat pump water heater provided by the present application adopts the temperature control method for the water heater external unit in the above embodiment, which can solve the technical problem that the temperature control of the existing water heater external unit is fixed, resulting in poor outdoor electric control heat dissipation effect. Compared with the prior art, the beneficial effects of the split-type heat pump water heater provided by the present application are the same as the beneficial effects of the temperature control method for the water heater external unit provided by the above embodiment, and the other technical features of the split-type heat pump water heater are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0127] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0128] The above is only a specific implementation 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.

[0129] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the temperature control method for an external unit of a water heater in the above-mentioned embodiment.

[0130] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, 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 above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0131] The computer-readable storage medium may be included in the split-type heat pump water heater; or may exist independently without being assembled into the split-type heat pump water heater.

[0132] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the split-type heat pump water heater, the split-type heat pump water heater: obtains the current outdoor ambient temperature; determines the corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and controls the current temperature of the outdoor unit of the water heater by the outdoor unit target temperature.

[0133] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may 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 entirely on a remote computer or server. In the case of a remote computer, the remote computer may 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 may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0134] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0135] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0136] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned water heater outdoor unit temperature control method, and can solve the technical problem that the outdoor electric control heat dissipation effect is poor due to the fixed temperature control of the existing water heater outdoor unit. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the water heater outdoor unit temperature control method provided by the above-mentioned embodiment, and will not be repeated here.

[0137] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned method for controlling the temperature of an external unit of a water heater when executed by a processor.

[0138] The computer program product provided by the present application can solve the technical problem that the fixed temperature control of the outdoor unit of the existing water heater leads to poor outdoor electric control heat dissipation effect. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the temperature control method of the outdoor unit of the water heater provided by the above embodiment, which will not be repeated here.

[0139] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for controlling the temperature of an external unit of a water heater, characterized in that: The water heater external unit temperature control method comprises: Get the current outdoor ambient temperature; Determining a corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and The current temperature of the water heater external unit is controlled by the external unit target temperature.

2. The method according to claim 1, characterized in that The step of determining the corresponding outdoor unit target temperature according to the current outdoor ambient temperature comprises: Comparing the current outdoor ambient temperature with a preset ambient temperature threshold to obtain a comparison result; and The corresponding outdoor unit target temperature is determined according to the comparison result.

3. The method according to claim 2, characterized in that The step of determining the corresponding outdoor unit target temperature according to the comparison result comprises: When the comparison result is that the current outdoor ambient temperature is greater than the preset ambient temperature threshold, obtaining the current outdoor fan speed; and The corresponding outdoor fan target temperature is determined by the current outdoor fan speed and the current outdoor ambient temperature.

4. The method according to claim 3, characterized in that The step of determining the corresponding outdoor fan target temperature according to the current outdoor fan speed and the current outdoor ambient temperature comprises: Acquire a first mapping relationship between an external fan speed and a first temperature coefficient; Acquire a second mapping relationship between the outdoor ambient temperature and the second temperature coefficient; and The corresponding outdoor fan target temperature is determined according to the first mapping relationship, the second mapping relationship, the current outdoor fan speed, and the current outdoor ambient temperature.

5. The method according to claim 4, characterized in that The step of determining the corresponding outdoor fan target temperature according to the first mapping relationship, the second mapping relationship, the current outdoor fan speed, and the current outdoor ambient temperature includes: Obtaining a current first temperature coefficient according to the first mapping relationship and the current external fan speed; Obtaining a current second temperature coefficient according to the second mapping relationship and the current outdoor ambient temperature; Obtaining a preset temperature range constant value and a preset constant value; and The target temperature of the external fan is calculated according to the preset temperature range constant value, the preset constant value, the current first temperature coefficient and the current second temperature coefficient.

6. The method according to claim 2, characterized in that The step of determining the corresponding outdoor unit target temperature according to the comparison result comprises: When the comparison result is that the current outdoor ambient temperature is less than or equal to the preset ambient temperature threshold, the current temperature of the water heater outdoor unit is used as the outdoor unit target temperature.

7. The method according to any one of claims 1 to 6, characterized in that The step of controlling the current temperature of the water heater external unit by the external unit target temperature comprises: Determining a target opening of the regulating valve according to the target temperature of the external unit; and The regulating valve is adjusted according to the target opening of the regulating valve, and the current temperature of the outdoor unit of the water heater is adjusted to the target temperature of the outdoor unit.

8. A temperature control device for an external unit of a water heater, characterized in that: The device comprises: An acquisition module is used to obtain the current outdoor ambient temperature; a determination module, configured to determine a corresponding outdoor unit target temperature according to the current outdoor ambient temperature; and The control module is used to control the current temperature of the water heater external unit through the external unit target temperature.

9. A split type heat pump water heater, characterized in that: The split-type heat pump water heater comprises: an external unit and an internal unit, and the split-type heat pump water heater further comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the method for controlling the temperature of the external unit of the water heater as described in any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the method for controlling the temperature of the outdoor unit of the water heater according to any one of claims 1 to 7 are implemented.

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