CN114963291B - Heating machine control method, device, equipment and storage medium - Google Patents

Heating machine control method, device, equipment and storage medium Download PDF

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Publication number
CN114963291B
CN114963291B CN202110724508.6A CN202110724508A CN114963291B CN 114963291 B CN114963291 B CN 114963291B CN 202110724508 A CN202110724508 A CN 202110724508A CN 114963291 B CN114963291 B CN 114963291B
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China
Prior art keywords
temperature
heating machine
operating frequency
ambient temperature
equal
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CN202110724508.6A
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Chinese (zh)
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CN114963291A (en
Inventor
梁杰
孙强
黄娟
陈炳泉
杜顺祥
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Qingdao Economic And Technology Development District Haier Water Heater Co ltd
Haier Smart Home Co Ltd
Qingdao Haier New Energy Electric Appliance Co Ltd
Original Assignee
Qingdao Economic And Technology Development District Haier Water Heater Co ltd
Haier Smart Home Co Ltd
Qingdao Haier New Energy Electric Appliance Co Ltd
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Application filed by Qingdao Economic And Technology Development District Haier Water Heater Co ltd, Haier Smart Home Co Ltd, Qingdao Haier New Energy Electric Appliance Co Ltd filed Critical Qingdao Economic And Technology Development District Haier Water Heater Co ltd
Priority to CN202110724508.6A priority Critical patent/CN114963291B/en
Priority to PCT/CN2022/084681 priority patent/WO2023273473A1/en
Publication of CN114963291A publication Critical patent/CN114963291A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application belongs to the technical field of heating machines, and particularly relates to a heating machine control method, a heating machine control device, heating machine control equipment and a storage medium, which are used for improving heating effect of a heating machine. The control method of the heating machine comprises the following steps: acquiring the ambient temperature of the position of an outdoor unit of the heating machine and the water outlet temperature of the heating machine; determining the maximum operating frequency corresponding to the heating machine according to the ambient temperature and the water outlet temperature; determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater; and when the defrosting of the outdoor unit is determined, defrosting the outdoor unit. Through this scheme, whether confirm defrosting according to the operating frequency of heater, can promote the accuracy of heater defrosting control, and then promote the heating effect of heater.

Description

Heating machine control method, device, equipment and storage medium
Technical Field
The application belongs to the technical field of heating equipment, and particularly relates to a control method, a device, equipment and a storage medium of a heating machine.
Background
The heating machine is a boiler which meets the heating requirements of people and is also called a heating furnace. For example, air source heat pump heaters in home scenes are one of the common heaters.
Generally, an air source heat pump heater includes an outdoor unit and an indoor unit, and in order to ensure normal operation of the heater, defrosting operation is required for the outdoor unit. In the related art, whether or not defrosting is required is generally determined based on the coil temperature of the heater, the ambient temperature, and the like.
However, the above-mentioned scheme is liable to occur in the case of erroneously defrosting without frosting or in the case of not starting a defrosting operation when defrosting is required, thereby greatly affecting the heating effect of the heater.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to improve the defrosting effect of the heater, the application provides a control method, a device, equipment and a storage medium of the heater.
In a first aspect, the present application provides a control method of a heating machine, including: acquiring the ambient temperature of the position of an outdoor unit of the heating machine and the water outlet temperature of the heating machine; determining the maximum operating frequency corresponding to the heating machine according to the ambient temperature and the water outlet temperature; determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater; and when the defrosting of the outdoor unit is determined, defrosting the outdoor unit.
In one possible implementation manner, obtaining an ambient temperature of a location of an outdoor unit of the heating machine and a water outlet temperature of the heating machine includes: acquiring the operation time length of the heating machine after power-on; if the running time length is greater than or equal to the first time length threshold value, the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine are obtained.
In one possible implementation manner, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater includes: acquiring the water inlet temperature of the heating machine and the coil temperature of the heating machine; determining whether the heater meets a preset defrosting requirement according to at least one of the water inlet temperature, the water outlet temperature, the ambient temperature and the coil temperature; if the heating machine meets the preset defrosting requirement, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency.
In one possible implementation, determining whether the heater meets the preset defrosting requirement according to at least one of the inlet water temperature, the outlet water temperature, the ambient temperature, and the coil temperature includes at least one of:
if the difference between the ambient temperature and the coil temperature is greater than or equal to a first temperature threshold, determining that the heating machine meets a preset defrosting requirement; if the temperature of the coil is less than or equal to the second temperature threshold, determining that the heating machine meets the preset defrosting requirement; if the water inlet temperature is greater than or equal to a third temperature threshold, determining that the heating machine meets a preset defrosting requirement; and if the ambient temperature is less than or equal to the fourth temperature threshold, determining that the heating machine meets the preset defrosting requirement.
In one possible implementation manner, determining whether to defrost the outdoor unit according to the current actual operating frequency and the maximum operating frequency of the heating machine includes: if the actual operating frequency is greater than or equal to the maximum operating frequency, determining that defrosting of the outdoor unit is required; if the actual operating frequency is less than the maximum operating frequency, it is determined that defrosting of the outdoor unit is not required.
In one possible implementation manner, after determining to defrost the outdoor unit, the method further includes: acquiring the coil temperature of the heater; and if the coil temperature is greater than or equal to the fifth temperature threshold, stopping defrosting the outdoor unit.
In one possible implementation manner, after determining to defrost the outdoor unit, the method further includes: acquiring defrosting time of the heater; and if the defrosting time period is greater than or equal to the second time period threshold value, stopping defrosting the outdoor unit.
In a second aspect, the present application provides a heating machine control device including: the acquisition module is used for acquiring the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine; the determining module is used for determining the maximum operating frequency corresponding to the heater according to the ambient temperature and the water outlet temperature, and determining whether the outdoor unit is defrosted according to the actual operating frequency and the maximum operating frequency of the heater; and the processing module is used for defrosting the outdoor unit when the outdoor unit is determined to be defrosted.
In one possible implementation manner, the acquiring module is specifically configured to: acquiring the operation time length of the heating machine after power-on; if the running time length is greater than or equal to the first time length threshold value, the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine are obtained.
In one possible implementation, the determining module is specifically configured to: acquiring the water inlet temperature of the heating machine and the coil temperature of the heating machine; determining whether the heater meets a preset defrosting requirement according to at least one of the water inlet temperature, the water outlet temperature, the ambient temperature and the coil temperature; if the heating machine meets the preset defrosting requirement, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency.
In one possible implementation, the determining module is specifically configured to: if the difference between the ambient temperature and the coil temperature is greater than or equal to a first temperature threshold, determining that the heating machine meets a preset defrosting requirement; if the temperature of the coil is less than or equal to the second temperature threshold, determining that the heating machine meets the preset defrosting requirement; if the water inlet temperature is greater than or equal to a third temperature threshold, determining that the heating machine meets a preset defrosting requirement; and if the ambient temperature is less than or equal to the fourth temperature threshold, determining that the heating machine meets the preset defrosting requirement.
In one possible implementation, the determining module is specifically configured to: if the actual operating frequency is greater than or equal to the maximum operating frequency, determining that defrosting of the outdoor unit is required; if the actual operating frequency is less than the maximum operating frequency, it is determined that defrosting of the outdoor unit is not required.
In one possible implementation, the obtaining module is further configured to: acquiring the coil temperature of the heater; the processing module is also used for: and stopping defrosting the outdoor unit when the coil temperature is determined to be greater than or equal to the fifth temperature threshold.
In one possible implementation, the obtaining module is further configured to: acquiring defrosting time of the heater; the processing module is also used for: and stopping defrosting the outdoor unit when the defrosting time is determined to be greater than or equal to the second time threshold.
In a third aspect, the present application provides an electronic device comprising: a processor and a memory; the memory stores a computer program; the processor, when executing the computer program stored in the memory, implements the control method of the heating machine as in the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium having stored therein computer-executable instructions for implementing the heating machine control method of the first aspect when executed by a processor.
In a fifth aspect, the present application provides a computer program product having stored therein computer-executable instructions for implementing the heating machine control method as in the first aspect when executed by a processor.
As can be appreciated by those skilled in the art, in the application, the maximum operating frequency corresponding to the heater is determined according to the ambient temperature and the water outlet temperature; and determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater. The accuracy of heater defrosting control can be promoted, and then the heating effect of heater is promoted.
Drawings
Preferred embodiments of a heating machine control method, apparatus, electronic device, and storage medium of the present application are described below with reference to the accompanying drawings. The attached drawings are as follows:
FIG. 1 is an exemplary diagram of an application scenario provided in an embodiment of the present application;
FIG. 2 is a flowchart of a control method of a heating machine according to an embodiment of the present application;
fig. 3 is a flowchart of a control method of a heating machine according to another embodiment of the present application;
fig. 4 is a flowchart of a control method of a heating machine according to still another embodiment of the present application;
fig. 5 is a schematic structural diagram of a heating machine control device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. Those skilled in the art can make adjustments as needed to suit a particular application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this embodiment of the application, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may be expressed as: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in a commodity or system comprising the element.
The heating machine is a boiler which meets the heating requirements of people and is also called a heating furnace. For example, air source heat pump heaters in home scenes are one of the common heaters.
In the related art, the defrosting control mode of the heating machine is as follows: whether defrosting is needed or not is judged according to the coil temperature, the ambient temperature and the like of the heater. However, in this judging manner, since the parameters of the ambient temperature and the coil temperature are easily interfered by the outside, it is not possible to accurately determine whether the unit has frosted, thereby causing a situation of false defrosting when there is no frosting or a situation of not starting a defrosting operation when defrosting is required, so that the heating effect of the heater is greatly affected.
In order to solve the problems, the embodiment of the application provides a control method, a device, equipment and a storage medium of a heating machine, wherein in the method, the maximum operating frequency corresponding to the heating machine is determined according to the ambient temperature and the water outlet temperature; and determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater. The accuracy of heater defrosting control can be promoted, and then the heating effect of heater is promoted.
Next, an application scenario of the embodiment of the present application will be described with reference to the drawings.
Fig. 1 is an exemplary diagram of an application scenario provided in an embodiment of the present application. As shown in fig. 1, the application scene includes a heater 101 and a heater control device 102.
It should be noted that, in the embodiment of the present application, the specific type of the heater control device 102 is limited, and in one aspect, the heater control device 102 may be a control module embedded in or externally connected to the heater 101, for example, a Central Processing Unit (CPU), a micro control unit (Microcontroller Unit, MCU), a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like, which may be combined in one or more.
On the other hand, the heating control device 102 may be a remote control device, for example, a control device in a mobile phone, a computer, a tablet, or the like.
In other embodiments, the heater control device 102 may also be a server, where the server is, for example, a local server, a cloud server, a distributed server, a blockchain node server, and the like, and embodiments of the present application are not limited specifically.
In practical application, after the heating machine 101 is powered on and operates, the heating machine control device 102 acquires the ambient temperature and the outlet water temperature of the outdoor unit of the heating machine 101 in real time, determines the maximum operating frequency according to the ambient temperature and the outlet water temperature, and determines whether defrosting of the heating machine is required according to the actual operating frequency and the maximum operating frequency of the heating machine 101. Through this scheme, whether confirm defrosting according to the operating frequency of heater, can promote the accuracy of heater defrosting control, and then promote the heating effect of heater.
The following describes embodiments of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 2 is a flow chart of a control method of a heating machine according to an embodiment of the application. It should be noted that, the execution main body of the embodiment of the present application is the above-mentioned heating machine control device. As shown in fig. 2, in the control method of a heating machine provided by the embodiment of the present application, a heating machine control device performs the following steps:
s201, acquiring the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine.
The method for acquiring the ambient temperature and the outlet water temperature is not particularly limited, for example, on one hand, the current ambient temperature can be acquired through a temperature acquisition device on the outdoor unit, and the current outlet water temperature can be acquired through a temperature acquisition device at the outlet of the water outlet.
On the other hand, the current ambient temperature may also be obtained online from a server, for example, a temperature obtaining request is sent to the server according to the location of the outdoor unit, and the ambient temperature corresponding to the current location is obtained from the server, where the server is, for example, a weather server.
S202, determining the maximum operating frequency corresponding to the heating machine according to the ambient temperature and the water outlet temperature.
In this step, the maximum operating frequency corresponding to the current ambient temperature and the outlet water temperature may be determined according to the corresponding relationship between the ambient temperature, the outlet water temperature and the maximum operating frequency. The corresponding relation is determined according to the historical ambient temperature, the outlet water temperature and the maximum operating frequency of the heater.
Specifically, the corresponding relationship between the ambient temperature, the outlet water temperature and the maximum operating frequency is shown in the following table:
as shown in the table above, th is the current ambient temperature, th1 is the first ambient temperature threshold, and Th2 is the second ambient temperature threshold; wherein the first ambient temperature threshold is greater than or equal to the second ambient temperature threshold; ts is the current water outlet temperature, ts1 is a first water outlet temperature threshold, ts2 is a second water outlet temperature threshold, wherein the first water outlet temperature threshold is less than or equal to the second water outlet temperature threshold; a1 and a2 … a9 are maximum operation frequencies corresponding to the ambient temperature and the water outlet temperature, wherein the sizes of the a1 and the a2 … a9 are in an increasing trend.
Specifically, in this step, the maximum operating frequency corresponding to the heating machine is determined according to the following manner:
(1) if the ambient temperature Th is greater than the first ambient temperature threshold Th1 and the outlet water temperature is less than or equal to the first outlet water temperature threshold Ts1, determining that the maximum operating frequency is a1;
(2) if the environmental temperature Th is greater than the second environmental temperature threshold Th2 and less than or equal to the first environmental temperature threshold Th1, and the outlet water temperature is less than or equal to the first outlet water temperature threshold Ts1, determining that the maximum operating frequency is a4;
(3) if the environmental temperature Th is smaller than or equal to the second environmental temperature threshold Th2 and the water outlet temperature is smaller than or equal to the first water outlet temperature threshold Ts1, determining the maximum operating frequency as a7;
(4) if the environmental temperature Th is greater than the first environmental temperature threshold Th1, and the water outlet temperature is greater than the first water outlet temperature threshold Ts1 and less than or equal to the second water outlet temperature threshold Ts2, determining that the maximum running frequency is a2;
(5) if the environmental temperature Th is greater than the second environmental temperature threshold Th2 and less than or equal to the first environmental temperature threshold Th1, and the water outlet temperature is greater than the first water outlet temperature threshold Ts1 and less than or equal to the second water outlet temperature threshold Ts2, determining that the maximum operating frequency is a5;
(6) if the environmental temperature Th is smaller than or equal to the second environmental temperature threshold Th2, and the water outlet temperature is larger than the first water outlet temperature threshold Ts1 and smaller than or equal to the second water outlet temperature threshold Ts2, determining that the maximum operating frequency is a8;
(7) if the ambient temperature Th is greater than the first ambient temperature threshold Th1 and the outlet water temperature is greater than the second outlet water temperature threshold Ts2, determining that the maximum operating frequency is a3;
(8) if the environmental temperature Th is greater than the second environmental temperature threshold Th2 and less than or equal to the first environmental temperature threshold Th1, and the water outlet temperature is greater than the second water outlet temperature threshold Ts2, determining that the maximum operating frequency is a6;
(9) and if the ambient temperature Th is smaller than or equal to the second ambient temperature threshold Th2 and the water outlet temperature is larger than the second water outlet temperature threshold Ts2, determining that the maximum operating frequency is a9.
S203, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater.
In practical application, when the actual operating frequency is greater than the maximum operating frequency, it is indicated that the load of the current heating machine is greater, that is, it is determined that the current outdoor machine is frosted and has an influence on the heating machine, and defrosting operation needs to be performed on the outdoor machine.
S204, defrosting the outdoor unit when defrosting is determined.
Accordingly, when it is determined that defrosting is required, the defrosting device is started to defrost the outdoor unit, and specific defrosting modes are not specifically limited herein.
In the embodiment of the application, the maximum operating frequency corresponding to the heating machine is determined according to the ambient temperature and the water outlet temperature; and determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater. The accuracy of heater defrosting control can be promoted, and then the heating effect of heater is promoted.
Fig. 3 is a flow chart of a control method of a heating machine according to another embodiment of the application. The embodiment of the application is described in more detail on the basis of the above embodiment, as shown in fig. 3, and the control method of the heating machine provided by the embodiment of the application specifically comprises the following steps:
s301, acquiring the operation time length after the heating machine is powered on.
And S302, if the running time is greater than or equal to a first time threshold, acquiring the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine.
It should be noted that, when the heating machine is just powered on, the frosting probability of the heating machine is small, and the outlet water temperature is not heated to a normal state, so the value of the outlet water temperature collected during the power on operation is not accurate enough, and finally the judging result of the frosting condition of the heating machine can be affected.
In the step, when the heating machine is electrified and runs to the first threshold value, the ambient temperature and the water outlet temperature are acquired, the accuracy of the acquired temperature value can be ensured, and finally the accuracy of the defrosting result judgment is improved.
S303, acquiring the water inlet temperature of the heater and the coil temperature of the heater.
It should be noted that, in the embodiment of the present application, the execution sequence of step S303 is not specifically limited, for example, the inlet water temperature and the coil temperature may be obtained while the ambient temperature and the outlet water temperature are obtained.
S304, determining whether the heater meets a preset defrosting requirement according to at least one of the water inlet temperature, the water outlet temperature, the ambient temperature and the coil temperature.
Specifically, step S304 includes at least one of determining that the heater meets a preset defrosting requirement when at least one of the following conditions is met:
(1) if the difference value between the ambient temperature and the coil temperature is larger than or equal to a first temperature threshold value, determining that the heating machine meets the preset defrosting requirement;
(2) if the temperature of the coil pipe is less than or equal to the second temperature threshold value, determining that the heating machine meets the preset defrosting requirement;
(3) if the water inlet temperature is determined to be greater than or equal to the third temperature threshold, determining that the heating machine meets the preset defrosting requirement;
(4) and if the ambient temperature is less than or equal to the fourth temperature threshold, determining that the heating machine meets the preset defrosting requirement.
It should be noted that, the values of the first temperature threshold, the second temperature threshold, and the third temperature threshold are not specifically limited.
S305, if the heating machine meets the preset defrosting requirement, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency.
Specifically, determining whether to defrost the outdoor unit includes the following two methods;
(1) if the actual operating frequency is greater than or equal to the maximum operating frequency, determining that defrosting of the outdoor unit is required;
(2) if the actual operating frequency is less than the maximum operating frequency, it is determined that defrosting of the outdoor unit is not required.
And S306, defrosting the outdoor unit when the outdoor unit is determined to be defrosted.
In the embodiment of the application, the accuracy of defrosting operation of the heating machine can be further improved by taking the relation among the water inlet temperature, the water outlet temperature, the ambient temperature and the coil temperature as the auxiliary judgment condition, so that the normal operation of the heating machine is ensured, and the user experience is improved.
Fig. 4 is a flow chart of a control method of a heating machine according to another embodiment of the application. The embodiment of the application is described in more detail on the basis of the above embodiment, as shown in fig. 4, and the control method of the heating machine provided by the embodiment of the application specifically includes the following steps:
s401, acquiring the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine.
S402, determining the maximum operating frequency corresponding to the heating machine according to the ambient temperature and the water outlet temperature;
s403, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater;
s404, defrosting the outdoor unit when defrosting is determined.
It should be noted that, the principle and the beneficial effects of steps S401 to S404 are similar to those of steps S201 to S204 in the embodiment shown in fig. 2, and are not repeated here.
In the embodiment of the application, in the defrosting process of the heating machine, the defrosting operation is stopped according to the real-time running condition of the heating machine. For example, whether to stop the defrosting operation of the heating machine may be determined according to any of parameters of a coil temperature, an outlet water temperature, a maximum operation frequency, and a defrosting period of the heating machine. The following describes the scheme in detail by taking coil temperature and operation time as examples:
s405, acquiring the coil temperature of the heater.
And S406, if the coil temperature is greater than or equal to the fifth temperature threshold, stopping defrosting the outdoor unit.
S407, acquiring defrosting time of the heater;
and S408, stopping defrosting the outdoor unit when the defrosting time is greater than or equal to the second time threshold.
Note that, the execution sequence of steps S407 to S408 is not particularly limited in the embodiment of the present application. In addition, in the determination of stopping the defrosting operation, the above determination may be alternatively used, for example, defrosting may be stopped when either one of the coil temperature and the defrosting time period satisfies the above condition, or defrosting may be stopped when both of them satisfy the above condition.
According to the embodiment of the application, the defrosting is stopped by the temperature and/or defrosting time of the coil pipe, so that the defrosting can be stopped in time after the defrosting is finished, and the normal use of the heater is ensured.
Fig. 5 is a schematic structural diagram of a heating control device according to an embodiment of the present application. As shown in fig. 5, the heating control apparatus 500 includes:
the acquisition module 501 is configured to acquire an ambient temperature at a location of an outdoor unit of the heating machine and an outlet water temperature of the heating machine;
the determining module 502 is configured to determine a maximum operating frequency corresponding to the heater according to the ambient temperature and the outlet water temperature, and determine whether to defrost the outdoor unit according to an actual operating frequency and the maximum operating frequency of the heater;
and a processing module 503 configured to defrost the outdoor unit when it is determined to defrost the outdoor unit.
In one possible implementation, the obtaining module 501 is specifically configured to: acquiring the operation time length of the heating machine after power-on; if the running time length is greater than or equal to the first time length threshold value, the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine are obtained.
In one possible implementation, the determining module 502 is specifically configured to: acquiring the water inlet temperature of the heating machine and the coil temperature of the heating machine; determining whether the heater meets a preset defrosting requirement according to at least one of the water inlet temperature, the water outlet temperature, the ambient temperature and the coil temperature; if the heating machine meets the preset defrosting requirement, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency.
In one possible implementation, the determining module 502 is specifically configured to: if the difference between the ambient temperature and the coil temperature is greater than or equal to a first temperature threshold, determining that the heating machine meets a preset defrosting requirement; if the temperature of the coil is less than or equal to the second temperature threshold, determining that the heating machine meets the preset defrosting requirement; if the water inlet temperature is greater than or equal to a third temperature threshold, determining that the heating machine meets a preset defrosting requirement; and if the ambient temperature is less than or equal to the fourth temperature threshold, determining that the heating machine meets the preset defrosting requirement.
In one possible implementation, the determining module 502 is specifically configured to: if the actual operating frequency is greater than or equal to the maximum operating frequency, determining that defrosting of the outdoor unit is required; if the actual operating frequency is less than the maximum operating frequency, it is determined that defrosting of the outdoor unit is not required.
In one possible implementation, the obtaining module 501 is further configured to: acquiring the coil temperature of the heater; the processing module 503 is further configured to: and stopping defrosting the outdoor unit when the coil temperature is determined to be greater than or equal to the fifth temperature threshold.
In one possible implementation, the obtaining module 501 is further configured to: acquiring defrosting time of the heater; the processing module 503 is further configured to: and stopping defrosting the outdoor unit when the defrosting time is determined to be greater than or equal to the second time threshold.
It should be understood that the embodiment of the foregoing heating control method may be implemented by the heating control device provided in fig. 5, and the implementation principle and technical effects are similar, which are not repeated herein.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application, as shown in fig. 6, the electronic device 600 includes: a processor 601 and a memory 602; the memory 602 stores a computer program; the processor 601 executes a computer program stored in a memory to implement the steps of the heating machine control method in the above-described method embodiments.
In the electronic device 600 described above, the memory 602 and the processor 601 are electrically connected directly or indirectly to enable transmission or interaction of data. For example, the elements may be electrically coupled to each other via one or more communication buses or signal lines, such as bus 603. The memory 602 stores computer-executable instructions for implementing a data access control method, including at least one software functional module that may be stored in the memory 602 in the form of software or firmware, and the processor 601 executes the software programs and modules stored in the memory 602 to perform various functional applications and data processing.
The Memory 602 may be, but is not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc. The memory 602 is used for storing a program, and the processor 601 executes the program after receiving an execution instruction. Further, the software programs and modules within the memory 602 may also include an operating system, which may include various software components and/or drivers for managing system tasks (e.g., memory management, storage device control, power management, etc.), and may communicate with various hardware or software components to provide an operating environment for other software components.
The processor 601 may be an integrated circuit chip with signal processing capabilities. The processor 601 may be a general-purpose processor, including a central processing unit (Central Processing Unit, abbreviated as CPU), a network processor (Network Processor, abbreviated as NP), and the like. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
An embodiment of the present application also provides a chip, including: a processor and a memory; the memory stores computer programs, and when the processor executes the computer programs stored in the memory, the steps of the control method of the heating machine in each method embodiment are realized.
The embodiment of the application also provides a computer readable storage medium, wherein computer execution instructions are stored in the computer readable storage medium, and the computer execution instructions are used for realizing the steps of the heating machine control method in the method embodiments when being executed by a processor.
Embodiments of the present application also provide a computer program product having stored therein computer-executable instructions that, when executed by a processor, are configured to implement the steps of the heating control method of the above-described method embodiments.
Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program, which may be stored on a non-transitory computer readable storage medium and which, when executed, may comprise the steps of the above-described embodiments of the methods. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will be within the scope of the present application.

Claims (7)

1. A control method of a heating machine, comprising:
acquiring the ambient temperature of the position of an outdoor unit of a heating machine and the water outlet temperature of the heating machine;
determining the maximum operating frequency corresponding to the heating machine according to the environment temperature, the water outlet temperature and a preset corresponding relation; the preset corresponding relation is determined according to the historical environment temperature, the historical water outlet temperature and the maximum operating frequency of the heating machine;
determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater;
defrosting the outdoor unit when the outdoor unit is determined to be defrosted;
the obtaining the ambient temperature of the outdoor unit of the heating machine and the outlet water temperature of the heating machine comprises the following steps:
acquiring the operation time length of the heating machine after power-on;
if the running time is greater than or equal to a first time threshold, acquiring the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine, wherein the first time threshold is used for indicating that the water outlet temperature is in a normal state;
wherein, the preset corresponding relation comprises:
if the ambient temperature is greater than a first ambient temperature threshold and the outlet water temperature is less than or equal to a first outlet water temperature threshold, determining that the maximum operating frequency is a1; if the ambient temperature is greater than a second ambient temperature threshold and less than or equal to the first ambient temperature threshold, and the outlet water temperature is less than or equal to the first outlet water temperature threshold, determining that the maximum operating frequency is a4; if the ambient temperature is less than or equal to the second ambient temperature threshold and the outlet water temperature is less than or equal to the first outlet water temperature threshold, determining that the maximum operating frequency is a7; if the ambient temperature is greater than the first ambient temperature threshold, and the outlet water temperature is greater than the first outlet water temperature threshold and less than or equal to a second outlet water temperature threshold, determining that the maximum operating frequency is a2; if the ambient temperature is greater than the second ambient temperature threshold and less than or equal to the first ambient temperature threshold, and the outlet water temperature is greater than the first outlet water temperature threshold and less than or equal to the second outlet water temperature threshold, determining that the maximum operating frequency is a5; if the ambient temperature is less than or equal to the second ambient temperature threshold, and the outlet water temperature is greater than a first outlet water temperature threshold and less than or equal to the second outlet water temperature threshold, determining that the maximum operating frequency is; if the ambient temperature is greater than the first ambient temperature threshold and the outlet water temperature is greater than the second outlet water temperature threshold, determining that the maximum operating frequency is a3; if the ambient temperature is greater than the second ambient temperature threshold, less than or equal to the first ambient temperature threshold, and the outlet water temperature is greater than the second outlet water temperature threshold, determining that the maximum operating frequency is a6; if the ambient temperature is less than or equal to the second ambient temperature threshold and the outlet water temperature is greater than the second outlet water temperature threshold, determining that the maximum operating frequency is a9; wherein the first ambient temperature threshold is greater than or equal to the second ambient temperature threshold; the first water outlet temperature threshold is smaller than or equal to the second water outlet temperature threshold; the sizes of a1, a2 … a9 are in an increasing trend;
the determining whether to defrost the outdoor unit according to the actual operating frequency of the heater and the maximum operating frequency includes:
acquiring the water inlet temperature of the heating machine and the coil temperature of the heating machine;
determining whether the heating machine meets a preset defrosting requirement according to at least one of the water inlet temperature, the water outlet temperature, the environment temperature and the coil temperature;
if the heating machine meets the preset defrosting requirement, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency;
the determining whether the heating machine meets a preset defrosting requirement according to at least one of the water inlet temperature, the water outlet temperature, the environment temperature and the coil temperature comprises at least one of the following steps:
if the difference between the ambient temperature and the coil temperature is greater than or equal to a first temperature threshold, determining that the heating machine meets a preset defrosting requirement;
if the temperature of the coil is less than or equal to a second temperature threshold, determining that the heating machine meets a preset defrosting requirement;
if the water inlet temperature is greater than or equal to a third temperature threshold, determining that the heating machine meets a preset defrosting requirement;
and if the ambient temperature is less than or equal to a fourth temperature threshold, determining that the heating machine meets a preset defrosting requirement.
2. The method of claim 1, wherein the determining whether to defrost the outdoor unit according to the current actual operating frequency and the maximum operating frequency of the heating machine comprises:
if the actual operating frequency is greater than or equal to the maximum operating frequency, determining that defrosting of the outdoor unit is required;
and if the actual operating frequency is smaller than the maximum operating frequency, determining that defrosting of the outdoor unit is not needed.
3. The control method of a heating machine according to claim 1, further comprising, after determining that defrosting is performed for the outdoor unit:
acquiring the temperature of a coil pipe of the heating machine;
and if the coil temperature is determined to be greater than or equal to a fifth temperature threshold, stopping defrosting the outdoor unit.
4. The control method of a heating machine according to claim 1, further comprising, after determining that defrosting is performed for the outdoor unit:
acquiring defrosting time of the heating machine;
and stopping defrosting the outdoor unit when the defrosting time is determined to be greater than or equal to a second time threshold.
5. A heating machine control device, characterized by comprising:
the acquisition module is used for acquiring the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine;
the determining module is used for determining the maximum operating frequency corresponding to the heating machine according to the environmental temperature, the water outlet temperature and a preset corresponding relation, wherein the preset corresponding relation is determined according to the historical environmental temperature, the historical water outlet temperature and the maximum operating frequency of the heating machine; determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency of the heater;
the processing module is used for defrosting the outdoor unit when the outdoor unit is determined to be defrosted;
the acquisition module is also used for acquiring the operation time length of the heating machine after power-on; if the running time is greater than or equal to a first time threshold, acquiring the ambient temperature of the position of the outdoor unit of the heating machine and the water outlet temperature of the heating machine, wherein the first time threshold is used for indicating that the water outlet temperature is in a normal state;
the determining module is specifically configured to determine that the maximum operating frequency is a1 if the ambient temperature is greater than a first ambient temperature threshold and the outlet water temperature is less than or equal to a first outlet water temperature threshold; if the ambient temperature is greater than a second ambient temperature threshold and less than or equal to the first ambient temperature threshold, and the outlet water temperature is less than or equal to the first outlet water temperature threshold, determining that the maximum operating frequency is a4; if the ambient temperature is less than or equal to the second ambient temperature threshold and the outlet water temperature is less than or equal to the first outlet water temperature threshold, determining that the maximum operating frequency is a7; if the ambient temperature is greater than the first ambient temperature threshold, and the outlet water temperature is greater than the first outlet water temperature threshold and less than or equal to a second outlet water temperature threshold, determining that the maximum operating frequency is a2; if the ambient temperature is greater than the second ambient temperature threshold and less than or equal to the first ambient temperature threshold, and the outlet water temperature is greater than the first outlet water temperature threshold and less than or equal to the second outlet water temperature threshold, determining that the maximum operating frequency is a5; if the ambient temperature is less than or equal to the second ambient temperature threshold, and the outlet water temperature is greater than a first outlet water temperature threshold and less than or equal to the second outlet water temperature threshold, determining that the maximum operating frequency is; if the ambient temperature is greater than the first ambient temperature threshold and the outlet water temperature is greater than the second outlet water temperature threshold, determining that the maximum operating frequency is a3; if the ambient temperature is greater than the second ambient temperature threshold, less than or equal to the first ambient temperature threshold, and the outlet water temperature is greater than the second outlet water temperature threshold, determining that the maximum operating frequency is a6; if the ambient temperature is less than or equal to the second ambient temperature threshold and the outlet water temperature is greater than the second outlet water temperature threshold, determining that the maximum operating frequency is a9; wherein the first ambient temperature threshold is greater than or equal to the second ambient temperature threshold; the first water outlet temperature threshold is smaller than or equal to the second water outlet temperature threshold; the sizes of a1, a2 … a9 are in an increasing trend;
the determining module is specifically used for acquiring the water inlet temperature of the heating machine and the coil temperature of the heating machine; determining whether the heating machine meets a preset defrosting requirement according to at least one of the water inlet temperature, the water outlet temperature, the environment temperature and the coil temperature; if the heating machine meets the preset defrosting requirement, determining whether to defrost the outdoor unit according to the actual operating frequency and the maximum operating frequency;
the determining module is specifically configured to determine that the heating machine meets a preset defrosting requirement if a difference between the ambient temperature and the coil temperature is greater than or equal to a first temperature threshold; if the temperature of the coil is less than or equal to a second temperature threshold, determining that the heating machine meets a preset defrosting requirement; if the water inlet temperature is greater than or equal to a third temperature threshold, determining that the heating machine meets a preset defrosting requirement; and if the ambient temperature is less than or equal to a fourth temperature threshold, determining that the heating machine meets a preset defrosting requirement.
6. An electronic device, comprising:
a processor and a memory;
the memory stores a computer program;
the processor, when executing the computer program stored in the memory, implements the heating machine control method according to any one of claims 1 to 4.
7. A computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, which when executed by a processor, are for implementing the heating control method according to any one of claims 1 to 4.
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