CN112762593A - Control method and device for preventing freezing of air conditioner evaporator and cabinet air conditioner - Google Patents
Control method and device for preventing freezing of air conditioner evaporator and cabinet air conditioner Download PDFInfo
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- CN112762593A CN112762593A CN202110014165.4A CN202110014165A CN112762593A CN 112762593 A CN112762593 A CN 112762593A CN 202110014165 A CN202110014165 A CN 202110014165A CN 112762593 A CN112762593 A CN 112762593A
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- air conditioner
- temperature
- cabinet air
- cabinet
- controlling
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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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
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
Abstract
The application relates to the technical field of intelligent household appliances and discloses an anti-freezing control method for an air conditioner evaporator. Two air outlets can be arranged on the cabinet air conditioner, and a first evaporator and a first throttle valve are arranged on the cabinet air conditioner. After the first air outlet of the air conditioner is closed, the first temperature of the coil pipe on the first evaporator is obtained, and when the first temperature is lower than the preset temperature, the opening of the first throttling valve is adjusted, so that the flow of the refrigerant flowing through the first throttling valve is reduced. The first temperature of first coil pipe is in order to improve to prevent that first evaporimeter surface from freezing, can make the user experience the air conditioner refrigeration mode through the second air outlet and prevent behind the first air outlet that first evaporimeter from freezing when closing. The application also discloses a device and a cabinet air conditioner that are used for the air conditioner evaporimeter to prevent frostbite.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a control method and device for preventing freezing of an air conditioner evaporator and a cabinet air conditioner.
Background
At present, with the improvement of living standard of people, the requirement of people on the air conditioner cabinet is higher and higher. The existing cabinet air conditioner is generally provided with only one air outlet, and most of the air outlets are arranged at the upper part of the cabinet air conditioner. The air-out mode is comparatively single, and the air output is less, can't satisfy the demand of air-out area and air output, makes the temperature of room air can't effectively reach the temperature that sets up fast. In this regard, cabinet air conditioners having upper and lower air outlets have been developed in the prior art. However, the existing cabinet air conditioner with double air outlets is usually provided with an upper vent and a lower vent which are opened simultaneously. When lower air outlet temperature was lower in summer, if under the too close condition of user's distance air conditioner, the condition of directly blowing user's shank appears easily, causes the user shank colder. And often the healthy of user is easily influenced to the shank air-out of user.
Therefore, how to ensure the physical health of the user while the user experiences the air conditioning refrigeration becomes an urgent problem to be solved. Moreover, if the lower air outlet of the cabinet air conditioner is closed, the lower evaporator is prone to fail to exchange heat with indoor air, so that the temperature of the surface of the lower evaporator of the air conditioner is gradually reduced, and the surface of the evaporator of the air conditioner is frozen.
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 control method and a control device for preventing an evaporator of an air conditioner from freezing and a cabinet air conditioner, and provides a control method for preventing the air conditioner from freezing.
In some embodiments, the method comprises: the air conditioner is applied to a cabinet air conditioner with two air outlets, the cabinet air conditioner is provided with a first evaporator, a first throttle valve, a first air outlet and a second air outlet, the first evaporator is provided with a first coil pipe, the first air outlet is closed, and the second air outlet is opened; after the cabinet air conditioner runs for a first preset time, acquiring a first temperature of a first coil pipe; when the first temperature is not higher than the preset temperature, the opening degree of the first throttle valve is adjusted to increase the temperature of the first coil pipe to be higher than the preset temperature.
In some embodiments, the method comprises: after the opening of the first throttle valve is adjusted, controlling the cabinet air conditioner to operate for a second preset time; acquiring a second temperature of the first coil pipe after the operation time of the cabinet air conditioner reaches a second preset time; and when the second temperature is not higher than the first temperature, controlling the cabinet air conditioner to execute a control instruction for increasing the temperature of the first coil pipe.
In some embodiments, controlling a cabinet air conditioner executes control instructions, comprising: controlling the cabinet air conditioner to close the first throttle valve; and controlling the cabinet air conditioner to open the first throttle valve under the condition that the time length for closing the first throttle valve by the cabinet air conditioner reaches a third preset time length.
In some embodiments, the third temperature of the first coil is obtained when the duration that the cabinet air conditioner opens the first throttle valve reaches a fourth preset duration; and if the third temperature is not higher than the second temperature, controlling the cabinet air conditioner to circularly execute a control instruction so as to increase the temperature of the first coil pipe to be higher than the second temperature.
In some embodiments, the method comprises: and if the frequency of executing the control command by the control cabinet air conditioner is higher than the preset frequency, stopping executing the control command by the control cabinet air conditioner.
In some embodiments, the method comprises: after the cabinet air conditioner stops executing the control command, acquiring a fourth temperature of the first coil; and when the fourth temperature is not higher than the third temperature, controlling the cabinet air conditioner to start the dehumidification mode.
In some embodiments, the method comprises: and under the condition that the time length for closing the first throttle valve of the cabinet air conditioner reaches a third preset time length, the speed of the airflow flowing out of the second air outlet is increased.
In some embodiments, the apparatus comprises: the air conditioner is applied to a cabinet air conditioner with two air outlets, the cabinet air conditioner is provided with a first evaporator, a first throttle valve, a first air outlet and a second air outlet, and the first evaporator is provided with a first coil pipe; the operation module is configured to close the first air outlet and open the second air outlet; the acquisition module is configured to acquire a first temperature of the first coil pipe after the cabinet air conditioner runs for a first preset time; the adjusting module is configured to adjust the opening degree of the first throttle valve to increase the temperature of the first coil pipe to be higher than a preset temperature when the first temperature is not higher than the preset temperature.
In some embodiments, the cabinet air conditioner includes: a processor and a memory storing program instructions, the processor being configured to execute the aforementioned control method for preventing freezing of an air conditioner evaporator when executing the program instructions.
In some embodiments, the cabinet air conditioner includes: a controlling means for air conditioner evaporimeter freeze-proof.
The control method and device for preventing the air conditioner from being frozen and cleaned and the cabinet air conditioner provided by the embodiment of the disclosure can realize the following technical effects: two air outlets can be arranged on the cabinet air conditioner, and a first evaporator and a first throttle valve are arranged on the cabinet air conditioner. The first temperature of the coil pipe on the first evaporator is obtained after the first air outlet of the air conditioner is closed and the second air outlet is opened, and when the first temperature is lower than the preset temperature, the opening degree of the first throttling valve is adjusted, so that the flow of the refrigerant flowing through the first throttling valve is reduced. And increasing the first temperature of the first coil to prevent freezing of the first evaporator surface. With this scheme, can make the user experience the air conditioner refrigeration mode through the second air outlet, after closing first air outlet, prevent that first evaporimeter from freezing.
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 view of a cabinet air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a method for controlling freeze prevention of an evaporator of an air conditioner according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of an apparatus for controlling freeze prevention of an evaporator of an air conditioner according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a cabinet air conditioner provided by the embodiment of the 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.
In practical application (as shown in fig. 1), the cabinet air conditioner has two air outlets, a first air outlet 1 arranged at the lower part of a front side plate of the cabinet air conditioner and a second air outlet 2 arranged at the upper part of the front side plate of the air conditioner, when the first air outlet 1 is closed, a user can feel an air conditioner refrigeration mode through the second air outlet 2, and after the cabinet air conditioner runs for a first preset time, a first temperature of a first coil pipe of the cabinet air conditioner is obtained, and the opening degree of a first throttle valve is adjusted when the first temperature is lower than the preset temperature. And acquiring a second temperature of the first coil pipe after the running time of the air conditioner reaches a preset time. And controlling the air conditioner to execute the control command when the second temperature is lower than the first temperature. And after the cabinet air conditioner stops executing the control instruction, acquiring the temperature of the first coil, and controlling the cabinet air conditioner to start a dehumidification mode when the temperature is not increased so as to improve the temperature of the first coil.
Fig. 2 is a schematic diagram of a method for controlling freezing prevention of an evaporator of an air conditioner according to an embodiment of the present disclosure, and referring to fig. 2, an embodiment of the present disclosure provides a method for controlling freezing prevention of an evaporator of an air conditioner, which is applied to a cabinet air conditioner having two air outlets, where the cabinet air conditioner is provided with a first evaporator, a first throttle valve, and a first air outlet, the first evaporator is provided with a first coil, and includes:
and S21, closing the first air outlet and opening the second air outlet.
And S22, acquiring the first temperature of the first coil pipe after the cabinet air conditioner runs for a first preset time.
And S23, when the first temperature is not higher than the preset temperature, adjusting the opening of the first throttle valve to increase the temperature of the first coil pipe to be higher than the preset temperature.
The control method for preventing the air conditioner evaporator from freezing provided by the embodiment of the disclosure is applied to a cabinet air conditioner with double air outlets.
In step 21, when the user feels cold on his or her legs, the first outlet is closed and the second outlet is opened.
In the scheme, the cabinet air conditioner with the double air outlets is provided with the first air outlet and the second air outlet respectively at the lower part and the upper part of the front side of the cabinet air conditioner. When the legs of the user feel cold, the first air outlet of the cabinet air conditioner can be correspondingly closed.
With this scheme, make the user can experience when the air conditioner refrigeration mode through first air outlet and avoid the user to be too close apart from cabinet air conditioner, the first air outlet of cabinet air conditioner directly blows user's shank, influences user's is healthy.
In one example, a human sensing device can be arranged on the cabinet air conditioner. Specifically, the human motion sensing device may be a human sensor. The first air outlet can be controlled to be closed by the cabinet air conditioner when the cabinet air conditioner senses that a user appears in the sensing area. In another example, the cabinet air conditioner can be controlled to close the first air outlet when the cabinet air conditioner senses that a user is present in the sensing area and stays for a period of time. With this scheme, through setting up the trigger condition of closing the air outlet, enable the cabinet air conditioner and close first air outlet at suitable opportunity, practiced thrift electric power resource when guaranteeing cabinet air conditioner normal operating.
In step 22, a first temperature of the first coil is obtained after the cabinet air conditioner is operated for a first preset time period.
In this scheme, set up first coil pipe at first evaporimeter, and first preset duration can be set for in advance according to user's demand. According to the scheme, the first temperature of the first coil pipe is obtained after the cabinet air conditioner is in the first preset time, the current operation state of the first evaporator is convenient to determine, and an accurate data basis can be provided for the control process of the evaporator freezing prevention.
In step 23, when the first temperature is lower than the preset temperature, the opening of the first throttle valve is adjusted to raise the temperature of the first coil pipe above the preset temperature.
In the present embodiment, the preset temperature refers to a temperature at which there is a risk of freezing, and in one example, the preset temperature may be set to 4 degrees.
By adopting the method for controlling the evaporator of the air conditioner to prevent freezing provided by the embodiment of the disclosure, two air outlets can be arranged on the cabinet air conditioner, and the cabinet air conditioner is provided with the first evaporator and the first throttle valve. After the first air outlet of the air conditioner is closed, the first temperature of the coil pipe on the first evaporator is obtained, and when the first temperature is lower than the preset temperature, the opening of the first throttling valve is adjusted, so that the flow of the refrigerant flowing through the first throttling valve is reduced. And improve the first temperature of first coil pipe to prevent that first evaporimeter surface from freezing, when can making the user experience the air conditioner refrigeration mode through the second air outlet, after closing first air outlet, prevent that first evaporimeter from freezing.
Optionally, to determine if the adjusted coil temperature is above a preset temperature. In the scheme, after the opening of the first throttle valve is adjusted, the cabinet air conditioner is controlled to operate for a second preset time; and acquiring a second temperature of the first coil pipe after the operation time of the cabinet air conditioner reaches a second preset time. And when the second temperature is not higher than the first temperature, controlling the cabinet air conditioner to execute a control instruction for increasing the temperature of the first coil pipe.
In this scheme, the second preset duration can be determined according to the difference between the first temperature of the first coil and the preset temperature. Specifically, the larger the difference between the first temperature of the first coil and the preset temperature is, the longer the second preset time period is determined to be. And acquiring a second temperature of the first coil pipe after the operation time of the cabinet air conditioner reaches a second preset time. The control instruction is executed by the cabinet air conditioner to increase the second temperature by comparing the first temperature with the second temperature and when the second temperature is not higher than the first temperature. With this arrangement, the temperature of the first coil can be adjusted by executing the control command when it is determined that the second temperature is lower than the first temperature.
Optionally, the control cabinet air conditioner executes a control instruction, including: controlling the cabinet air conditioner to close the first throttle valve; and controlling the cabinet air conditioner to open the first throttle valve under the condition that the time length for closing the first throttle valve by the cabinet air conditioner reaches a third preset time length.
In the scheme, the first control instruction comprises two control processes, namely, the cabinet air conditioner is controlled to close the first throttle valve, the first throttle valve is connected with the first evaporator, after the cabinet air conditioner closes the first throttle valve, the refrigerant cannot pass through the first throttle valve to the first evaporator, so that the temperature of the surface of the first evaporator is improved by controlling the flow of the refrigerant, and the cabinet air conditioner is controlled to open the first throttle valve again under the condition that the time length for closing the first throttle valve by the cabinet air conditioner reaches a third preset time length. According to the scheme, the flow of the refrigerant flowing into the first evaporator can be controlled by opening and closing the throttle valve, so that the temperature of the first coil pipe is increased.
Optionally, to further increase the temperature of the first coil. In the scheme, under the condition that the time length for opening the first throttle valve of the cabinet air conditioner reaches a fourth preset time length, the third temperature of the first coil pipe is obtained; and if the third temperature is not higher than the second temperature, controlling the cabinet air conditioner to circularly execute a control instruction so as to increase the temperature of the first coil pipe to be higher than the second temperature.
In this embodiment, after the control command is executed, if the temperature of the first coil is still lower than the second temperature. And acquiring the third temperature of the first coil pipe after the cabinet air conditioner executes the control instruction. And when the third temperature is lower than the second temperature, executing the control instruction again to control the flow of the refrigerant flowing into the first evaporator through opening and closing the throttle valve for multiple times so as to improve the temperature of the first coil.
Optionally, in order to control the number of times of executing the first control instruction in a loop, in this embodiment, if the number of times of executing the control instruction by the cabinet air conditioner is higher than the preset number of times, the cabinet air conditioner is controlled to stop executing the first control instruction.
In the scheme, the preset times can be set in advance according to the control requirements of the user. In another example, the preset number of times may also be determined according to a difference between the third temperature and the second temperature. With this scheme, can guarantee cabinet-type air conditioner's reliable operation.
Optionally, in order to increase the temperature of the first coil pipe after the control instruction is executed, in this scheme, after the cabinet air conditioner stops executing the control instruction, a fourth temperature of the first coil pipe is obtained; and when the fourth temperature is not higher than the third temperature, controlling the cabinet air conditioner to start the dehumidification mode.
In this scheme, if the fourth temperature of the first coil pipe is lower than the third temperature after the control instruction is executed in a circulating manner, the cabinet air conditioner can be controlled to start the dehumidification mode. According to the scheme, a large amount of condensed water generated by the second evaporator arranged at the upper part of the cabinet air conditioner flows to the surface of the first evaporator, and defrosting treatment is carried out on frost condensed on the surface of the first evaporator.
Optionally, a second air outlet is further disposed in the cabinet air conditioner, and the speed of the airflow flowing out of the second air outlet is increased when the time length for closing the first throttle valve of the cabinet air conditioner reaches a third preset time length.
In this scheme, can improve the speed of second air outlet air current through increasing the fan rotational speed to this scheme can be when opening first choke valve for the speed of the heat exchange of air in the cabinet air conditioner and the outer air of cabinet air conditioner, in order to promote the refrigeration effect of cabinet air conditioner.
Referring to fig. 3, an embodiment of the present disclosure provides an apparatus for controlling an evaporator of an air conditioner to prevent freezing, which is applied to a cabinet air conditioner with two air outlets, where the cabinet air conditioner is provided with a first evaporator, a first throttle valve, and a first air outlet, and includes an operation module 31, an obtaining module 32, and an adjusting module 33. The operation module 31 is configured to close the first outlet and open the second outlet; the obtaining module 32 is configured to obtain a first temperature of the first coil after the cabinet air conditioner is operated for a first preset time period; the adjustment module 33 is configured to adjust an opening of the first throttle valve to increase a temperature of the first coil above a preset temperature when the first temperature is not higher than the preset temperature.
By adopting the method for controlling the evaporator of the air conditioner to prevent freezing provided by the embodiment of the disclosure, two air outlets can be arranged on the cabinet air conditioner, and the cabinet air conditioner is provided with the first evaporator and the first throttle valve. After the first air outlet of the air conditioner is closed, the first temperature of the coil pipe on the first evaporator is obtained, and when the first temperature is lower than the preset temperature, the opening of the first throttling valve is adjusted, so that the flow of the refrigerant flowing through the first throttling valve is reduced. And improve the first temperature of first coil pipe to prevent that first evaporimeter surface from freezing, when can making the user experience the air conditioner refrigeration mode through the second air outlet, after closing first air outlet, prevent that first evaporimeter from freezing.
As shown in fig. 4, an embodiment of the present disclosure provides an apparatus for controlling anti-freezing of an evaporator of 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 execute the method for controlling the anti-freezing of the evaporator of the air conditioner according to the above 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, i.e., implements the method for controlling freezing prevention of the evaporator of the air conditioner in the above-described embodiments, by executing program instructions/modules stored in the memory 101.
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 a cabinet air conditioner, which comprises the device for controlling the evaporator of the air conditioner to prevent freezing.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling anti-freezing of an evaporator of an air conditioner.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-mentioned method for controlling anti-freezing of an evaporator of 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. The utility model provides a control method for air conditioner evaporimeter freeze-proof, its characterized in that is applied to the cabinet air conditioner that has two air outlets, the cabinet air conditioner is provided with first evaporimeter, first choke valve, first air outlet and second air outlet, first evaporimeter is provided with first coil pipe, the method includes:
closing the first air outlet and opening the second air outlet;
after the cabinet air conditioner runs for a first preset time, acquiring a first temperature of the first coil pipe;
when the first temperature is not higher than the preset temperature, the opening degree of the first throttle valve is adjusted to increase the temperature of the first coil pipe to be higher than the preset temperature.
2. The method of claim 1, further comprising:
after the opening of the first throttle valve is adjusted, controlling the cabinet air conditioner to operate for a second preset time;
after the operation time of the cabinet air conditioner reaches a second preset time, acquiring a second temperature of the first coil pipe;
and when the second temperature is not higher than the first temperature, controlling the cabinet air conditioner to execute a control instruction for increasing the temperature of the first coil pipe.
3. The method of claim 2, wherein the controlling the cabinet air conditioner to execute control instructions comprises:
controlling the cabinet air conditioner to close the first throttle valve;
and under the condition that the time length for closing the first throttle valve by the cabinet air conditioner reaches a third preset time length, controlling the cabinet air conditioner to open the first throttle valve.
4. The method of claim 3, wherein after said controlling the cabinet air conditioner to open the first throttle valve, the method further comprises:
under the condition that the time length for opening the first throttle valve of the cabinet air conditioner reaches a fourth preset time length, acquiring a third temperature of the first coil pipe;
and if the third temperature is not higher than the second temperature, controlling the cabinet air conditioner to circularly execute the control instruction so as to improve the temperature of the first coil pipe to be higher than the second temperature.
5. The method of claim 4, further comprising:
and if the frequency of controlling the cabinet air conditioner to execute the control instruction is higher than the preset frequency, controlling the cabinet air conditioner to stop executing the control instruction.
6. The method of claim 5, further comprising:
after the cabinet air conditioner stops executing the control command, acquiring a fourth temperature of the first coil;
and when the fourth temperature is not higher than the third temperature, controlling the cabinet air conditioner to start a dehumidification mode.
7. The method of claim 3, further comprising:
and under the condition that the time length for closing the first throttling valve of the cabinet air conditioner reaches a third preset time length, the speed of the airflow flowing out of the second air outlet is increased.
8. The utility model provides a controlling means for air conditioner evaporimeter freeze-proof, its characterized in that is applied to the cabinet air conditioner that has two air outlets, the cabinet air conditioner is provided with first evaporimeter, first choke valve, first air outlet and second air outlet, first evaporimeter is provided with first coil pipe, the method includes:
an operation module configured to close the first outlet and open the second outlet;
the acquisition module is configured to acquire a first temperature of the first coil pipe after the cabinet air conditioner runs for a first preset time;
an adjustment module configured to adjust an opening of the first throttle valve to increase a temperature of the first coil above a preset temperature when the first temperature is not higher than the preset temperature.
9. Cabinet air conditioner comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute the control method for evaporator freeze protection of an air conditioner according to any one of claims 1 to 7 when executing the program instructions.
10. A cabinet air conditioner including a control device for preventing freezing of an evaporator of the air conditioner as claimed in claim 8.
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