CN113091212A - Defrosting control method and device for air conditioner and air conditioner - Google Patents
Defrosting control method and device for air conditioner and air conditioner Download PDFInfo
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- CN113091212A CN113091212A CN202110309998.3A CN202110309998A CN113091212A CN 113091212 A CN113091212 A CN 113091212A CN 202110309998 A CN202110309998 A CN 202110309998A CN 113091212 A CN113091212 A CN 113091212A
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000010257 thawing Methods 0.000 title claims abstract description 49
- 230000008859 change Effects 0.000 claims description 18
- 238000010586 diagram Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
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- 238000010438 heat treatment Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The application relates to the technical field of air conditioners, and discloses a defrosting control method for an air conditioner, the air conditioner comprises an outdoor unit, the outdoor unit is provided with a fan and a coil pipe, and the method comprises the following steps: acquiring a temperature value of the coil pipe; if the temperature value is matched with a preset temperature value, acquiring the variable quantity of the current value of the fan; and if the variation of the current value indicates that the outdoor unit is in a frosting state, controlling the outdoor unit to execute a defrosting instruction. The method can accurately determine the frosting state of the outdoor unit. The application also discloses a defrosting control device and an air conditioner for the air conditioner.
Description
Technical Field
The present disclosure relates to the field of air conditioners, and in particular, to a defrosting control method and device for an air conditioner and an air conditioner.
Background
At present, when the existing air conditioner runs in a heating mode, the outdoor unit can generate a frosting phenomenon, and the heating effect of the air conditioner is influenced by the frosted outdoor unit. The existing method for determining frosting of the outdoor unit is to compare the temperature of the coil pipe corresponding to the outdoor unit with a preset temperature value, and determine that the outdoor unit is in a frosting state according to the comparison result. However, there are many factors that cause the temperature of the coil corresponding to the outdoor unit to change, such as malfunction of the indoor unit, abnormal operation of the compressor, and blockage of the coil.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the frosting state of the outdoor unit cannot be accurately determined according to the coil temperature of the outdoor unit.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a defrosting control method and device for an air conditioner and the air conditioner, so as to accurately determine the frosting state of an outdoor unit.
In some embodiments, the air conditioner includes an outdoor unit configured with a fan and a coil, the method comprising: acquiring a temperature value of the coil pipe; if the temperature value is matched with a preset temperature value, acquiring the variable quantity of the current value of the fan; and if the variation of the current value indicates that the outdoor unit is in a frosting state, controlling the outdoor unit to execute a defrosting instruction.
In some embodiments, the frosting of the outdoor unit is determined as follows: acquiring the variable quantity of a current value in a preset time period; and if the variation of the current value is less than or equal to the current threshold, determining that the outdoor unit is in a frosting state.
In some embodiments, the frosting of the outdoor unit is determined as follows: acquiring the variable quantity of a current value in a preset time period; determining a current value change rate according to the duration information of the preset time period and the change quantity of the current value; and if the current value change rate is less than or equal to a change rate threshold value, determining that the outdoor unit is in a frosting state.
In some embodiments, before obtaining the change amount of the current value in the preset time period, the method further includes: acquiring the variable quantity of the power value in the preset time period; and if the power value variation is larger than or equal to a power threshold, acquiring the variation of the current value in the preset time period.
In some embodiments, the temperature value of the coil is matched to a preset temperature value, including: the temperature value of the coil is greater than or equal to the preset temperature value; or the temperature value of the coil pipe is located in a preset range corresponding to the preset temperature value.
In some embodiments, after the controlling the outdoor unit to execute the defrosting instruction, the method further includes: re-acquiring the temperature value of the coil; and if the temperature value of the coil pipe obtained again does not match the preset temperature value, controlling the outdoor unit to execute a defrosting ending instruction.
In some embodiments, the air conditioner comprises an outdoor unit and a controller, wherein the outdoor unit is provided with a fan and a coil; the controller is used for acquiring a temperature value of the coil pipe, and acquiring the variation of the current value of the fan when the temperature value is matched with a preset temperature value; and when the variation of the current value indicates that the outdoor unit is in a frosting state, controlling the outdoor unit to execute a defrosting command.
In some embodiments, the apparatus, comprises: a temperature acquisition module configured to acquire a temperature value of the coil; the current acquisition module is configured to acquire the variation of the current value of the fan when the temperature value is matched with a preset temperature value; the execution module is configured to control the outdoor unit to execute a defrosting instruction when the variation of the current value indicates that the outdoor unit is in a frosting state.
In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to, when executing the program instructions, perform a defrost control method for an air conditioner as previously described.
In some embodiments, the air conditioner comprises a defrost control apparatus for an air conditioner as described above.
The defrosting control method and device for the air conditioner and the air conditioner provided by the embodiment of the disclosure can achieve the following technical effects:
the air conditioner firstly obtains the temperature value of the coil, if the temperature value is matched with a preset temperature value, the air conditioner is probably in a frosting state, and then the variable quantity of the current value of the fan of the outdoor unit is obtained. The outdoor unit is connected with the fan, and the fan is connected with the outdoor unit through a fan shaft. In addition, after the outdoor unit is used for a long time, the current value of the fan is changed due to dust accumulation of the outdoor unit, and the frosting state of the outdoor unit is not accurately known only according to the current value of the fan, so that the frosting state of the outdoor unit is judged by using the variation of the current value of the fan, and the accuracy of determining the frosting state of the outdoor unit is further improved. In summary, the method can accurately determine the frosting state of the outdoor unit, and perform the corresponding defrosting operation when the outdoor unit is in the frosting state.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a defrost control method for an air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another defrost control method for an air conditioner provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another defrost control method for an air conditioner provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another defrost control method for an air conditioner provided by an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another defrost control method for an air conditioner provided by an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a defrost control apparatus for an air conditioner provided in accordance with an embodiment of the present disclosure;
fig. 7 is a schematic diagram of another defrosting control device for an air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
Referring to fig. 1, an embodiment of the present disclosure provides a defrosting control method for an air conditioner, where the air conditioner includes an outdoor unit, and the outdoor unit is configured with a fan and a coil. The method comprises the following steps:
and S01, acquiring the temperature value of the coil.
And S02, if the temperature value is matched with the preset temperature value, acquiring the variable quantity of the current value of the fan.
And S03, if the variation of the current value indicates that the outdoor unit is in a frosting state, controlling the outdoor unit to execute a defrosting command.
By adopting the defrosting control method for the air conditioner provided by the embodiment of the disclosure, the air conditioner firstly obtains the temperature value of the coil, if the temperature value is matched with the preset temperature value, the air conditioner is probably in a frosting state, and then the variable quantity of the current value of the fan of the outdoor unit is obtained. The outdoor unit is connected with the fan, and the fan is connected with the outdoor unit through a fan shaft. The method can determine the frosting state of the outdoor unit and carry out corresponding defrosting operation under the condition that the outdoor unit is in the frosting state.
When the temperature value is matched with the preset temperature value, the current value of the fan can be obtained, and the frosting state of the outdoor unit is determined according to the current value of the fan. The current value of the fan can change along with the reduction of the ventilation quantity of the outdoor unit, so the frosting state of the outdoor unit can be judged according to the current value of the fan.
In addition, after the outdoor unit is used for a long time, the current value of the fan is changed due to dust accumulation of the outdoor unit, and the frosting state of the outdoor unit is not accurately known only according to the current value of the fan, so that the frosting state of the outdoor unit is judged by using the variation of the current value of the fan, and the accuracy of determining the frosting state of the outdoor unit is further improved.
Optionally, as shown in fig. 2, it is determined that the outdoor unit is in a frosted state according to the following method:
s11, the variation amount of the current value in the preset time period is acquired.
S12, if the variation of the current value is less than or equal to the current threshold, it is determined that the outdoor unit is in a frosted state.
Thus, the amount of change in the current value is less than or equal to the current threshold value, indicating that the current value decreases, whereby it can be known that the ventilation amount of the outdoor unit decreases, and it can be determined that the outdoor unit is in a frosted state.
Optionally, as shown in fig. 3, it is determined that the outdoor unit is in a frosted state according to the following method:
s21, the variation amount of the current value in the preset time period is acquired.
And S23, determining the current value change rate according to the duration information of the preset time period and the change amount of the current value.
S23, if the current value change rate is less than or equal to the change rate threshold, it is determined that the outdoor unit is in a frosted state.
Thus, the current value change rate is less than or equal to the change rate threshold, indicating that the current value is continuously decreased, whereby it can be known that the ventilation amount of the outdoor unit is continuously decreased, and thus it can be determined that the outdoor unit is in a frosted state.
Referring to fig. 4, an embodiment of the present disclosure further provides a defrosting control method for an air conditioner, where the air conditioner includes an outdoor unit, and the outdoor unit is configured with a fan and a coil. The method comprises the following steps:
and S31, acquiring the temperature value of the coil.
And S32, if the temperature value is matched with the preset temperature value, acquiring the variation of the power value in the preset time period.
And S33, if the power value variation is larger than or equal to the power threshold value, acquiring the variation of the current value in the preset time period.
S34, if the variation of the current value is less than or equal to the current threshold, it is determined that the outdoor unit is in a frosted state.
And S35, controlling the outdoor unit to execute a defrosting command.
By adopting the defrosting control method for the air conditioner provided by the embodiment of the disclosure, when the temperature value of the coil pipe is matched with the preset temperature value, the air conditioner may be in a frosting state, at this time, the variation of the power value in the preset time period is firstly obtained, if the variation of the power value is greater than or equal to the power threshold value, it is indicated that the power value has an increasing trend, and at this time, the outdoor unit is frosted at a high probability. In order to more accurately acquire the frosting state of the outdoor unit, the variation of the current value in the preset time period is acquired, if the variation of the current value is less than or equal to the current threshold value, the current value is reduced, so that the reduction of the wind speed can be acquired, the ventilation quantity of the outdoor unit is also reduced, the outdoor unit can be determined to be in the frosting state, and the corresponding defrosting operation is carried out under the condition that the outdoor unit is in the frosting state.
Optionally, the temperature value of the coil pipe is matched with a preset temperature value, including that the temperature value of the coil pipe is greater than or equal to the preset temperature value; or the temperature value of the coil is in a preset range corresponding to the preset temperature value.
Therefore, the comparison result of the temperature value of the coil pipe and the preset temperature value or the comparison result of the temperature value of the coil pipe and the preset range corresponding to the preset temperature value can be used as the basis for judging that the air conditioner is in the frosting state.
Wherein, the preset temperature value can be 0 ℃ (centigrade). The preset range corresponding to the preset temperature value may be [ preset temperature value-preset deviation value, preset temperature value + preset deviation value ], and the preset deviation value may be set according to the type of the air conditioner, which is not specifically limited in this application.
Referring to fig. 5, an embodiment of the present disclosure further provides a defrosting control method for an air conditioner, where the air conditioner includes an outdoor unit, and the outdoor unit is configured with a fan and a coil. The method comprises the following steps:
and S41, acquiring the temperature value of the coil.
And S42, if the temperature value is matched with the preset temperature value, acquiring the variable quantity of the current value of the fan.
And S43, if the variation of the current value indicates that the outdoor unit is in a frosting state, controlling the outdoor unit to execute a defrosting command.
And S44, acquiring the temperature value of the coil again.
And S45, if the temperature value of the coil pipe obtained again does not match the preset temperature value, controlling the outdoor unit to execute a defrosting ending instruction.
By adopting the defrosting control method for the air conditioner, the outdoor unit is controlled to execute the defrosting instruction, the temperature value of the coil pipe is obtained again, and if the temperature value of the coil pipe obtained again is not matched with the preset temperature value, the outdoor unit is indicated to be successfully defrosted, so that the outdoor unit is controlled to execute the defrosting ending instruction.
The embodiment of the disclosure also provides an air conditioner, which comprises an outdoor unit and a controller. The outdoor unit is provided with a fan and a coil. The controller is used for obtaining the temperature value of the coil pipe, obtaining the variation of the current value of the fan when the temperature value is matched with the preset temperature value, and controlling the outdoor unit to execute the defrosting instruction when the variation of the current value shows that the outdoor unit is in a frosting state.
By adopting the air conditioner provided by the embodiment of the disclosure, the air conditioner firstly obtains the temperature value of the coil, if the temperature value is matched with the preset temperature value, the air conditioner is probably in a frosting state, and then the variable quantity of the current value of the fan of the outdoor unit is obtained. The frosting state of the outdoor unit can be judged according to the variable quantity of the current value of the fan, and the outdoor unit is controlled to execute a defrosting instruction when the frosting state of the outdoor unit is determined. The air conditioner can accurately determine the frosting state of the outdoor unit, and carries out corresponding defrosting operation under the condition that the outdoor unit is in the frosting state.
In practical applications, an air conditioner includes an outdoor unit. The outdoor unit is provided with a fan and a coil.
The temperature value of the coil pipe is 2 ℃, the duration information of the preset time period is 10 minutes, and the variation of the current value corresponding to the duration information of the preset time period is A1. The current threshold is a2, and a2> a 1. The preset temperature value is 0 ℃.
The defrosting control method for the air conditioner comprises the following execution steps:
and S51, acquiring the temperature value of the coil.
And S52, comparing the current temperature value with a preset temperature value, and acquiring the variable quantity A1 of the current value of the fan as the current temperature value is greater than the preset temperature value.
S53, since the variation of the current value is smaller than the current threshold, it is determined that the outdoor unit is in a frosted state.
And S54, controlling the outdoor unit to execute a defrosting command.
Referring to fig. 6, a defrosting control device for an air conditioner according to an embodiment of the present disclosure includes a temperature obtaining module 201, a current obtaining module 202, and an executing module 203. The temperature acquisition module 201 is configured to acquire a temperature value of the coil; the current obtaining module 202 is configured to obtain a variation of a current value of the fan when the temperature value matches a preset temperature value; the execution module 203 is configured to control the outdoor unit to execute a defrosting instruction when the variation of the current value indicates that the outdoor unit is in a frosting state.
By adopting the defrosting control device for the air conditioner, provided by the embodiment of the disclosure, the frosting state of the outdoor unit can be accurately determined, and corresponding defrosting operation is carried out under the condition that the outdoor unit is in the frosting state.
As shown in fig. 7, an embodiment of the present disclosure provides a defrosting control device for an air conditioner, which includes a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the defrosting control method for the air conditioner of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the defrosting control method for the air conditioner in the above-described embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the defrosting control device for the air conditioner.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described defrost control method for an air conditioner.
An embodiment of the present disclosure provides a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform the above-described defrosting control method for an air conditioner.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A defrost control method for an air conditioner, the air conditioner including an outdoor unit provided with a fan and a coil, the method comprising:
acquiring a temperature value of the coil pipe;
if the temperature value is matched with a preset temperature value, acquiring the variable quantity of the current value of the fan;
and if the variation of the current value indicates that the outdoor unit is in a frosting state, controlling the outdoor unit to execute a defrosting instruction.
2. The method of claim 1, wherein the frosting of the outdoor unit is determined as follows:
acquiring the variable quantity of a current value in a preset time period;
and if the variation of the current value is less than or equal to the current threshold, determining that the outdoor unit is in a frosting state.
3. The method of claim 1, wherein the frosting of the outdoor unit is determined as follows:
acquiring the variable quantity of a current value in a preset time period;
determining a current value change rate according to the duration information of the preset time period and the change quantity of the current value;
and if the current value change rate is less than or equal to a change rate threshold value, determining that the outdoor unit is in a frosting state.
4. The method according to claim 2 or 3, wherein before obtaining the variation of the current value in the preset time period, the method further comprises:
acquiring the variable quantity of the power value in the preset time period;
and if the power value variation is larger than or equal to a power threshold, acquiring the variation of the current value in the preset time period.
5. The method of claim 1, wherein the temperature value of the coiled tubing is matched to a preset temperature value, comprising:
the temperature value of the coil is greater than or equal to the preset temperature value; or,
the temperature value of the coil pipe is located in a preset range corresponding to the preset temperature value.
6. The method of claim 1, wherein after the controlling the outdoor unit to perform the defrosting command, further comprising:
re-acquiring the temperature value of the coil;
and if the temperature value of the coil pipe obtained again does not match the preset temperature value, controlling the outdoor unit to execute a defrosting ending instruction.
7. The air conditioner is characterized by comprising an outdoor unit and a controller, wherein the outdoor unit is provided with a fan and a coil;
the controller is used for acquiring a temperature value of the coil pipe, and acquiring the variation of the current value of the fan when the temperature value is matched with a preset temperature value; and when the variation of the current value indicates that the outdoor unit is in a frosting state, controlling the outdoor unit to execute a defrosting command.
8. A defrost control apparatus for an air conditioner, comprising:
a temperature acquisition module configured to acquire a temperature value of the coil;
the current acquisition module is configured to acquire the variation of the current value of the fan when the temperature value is matched with a preset temperature value;
the execution module is configured to control the outdoor unit to execute a defrosting instruction when the variation of the current value indicates that the outdoor unit is in a frosting state.
9. A defrost control apparatus for an air conditioner comprising a processor and a memory having stored program instructions, characterized in that the processor is configured to perform the defrost control method for an air conditioner as claimed in any one of claims 1 to 6 when executing the program instructions.
10. An air conditioner characterized by comprising the defrosting control apparatus for an air conditioner according to claim 8 or 9.
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| CN202110309998.3A CN113091212A (en) | 2021-03-23 | 2021-03-23 | Defrosting control method and device for air conditioner and air conditioner |
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| CN202110309998.3A CN113091212A (en) | 2021-03-23 | 2021-03-23 | Defrosting control method and device for air conditioner and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115638509A (en) * | 2022-11-09 | 2023-01-24 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
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| CN108507127A (en) * | 2018-02-14 | 2018-09-07 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
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| CN115638509B (en) * | 2022-11-09 | 2024-06-11 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
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