CN112856720A - 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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- CN112856720A CN112856720A CN202110134618.7A CN202110134618A CN112856720A CN 112856720 A CN112856720 A CN 112856720A CN 202110134618 A CN202110134618 A CN 202110134618A CN 112856720 A CN112856720 A CN 112856720A
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- heat exchanger
- air conditioner
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- power
- temperature value
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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
- F24F11/62—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
Abstract
The application relates to the technical field of air conditioners, and discloses a defrosting control method for an air conditioner, wherein the air conditioner comprises an electrochemical compressor and a first heat exchanger which is communicated with the electrochemical compressor through a hydrogen discharge channel and is installed in an outdoor environment, and the method comprises the following steps: acquiring a temperature value of the first heat exchanger; if the temperature value is matched with a preset temperature value, acquiring a power value of the air conditioner; and if the power value indicates that the first heat exchanger is in a frosting state, switching the hydrogen discharge channel into a hydrogen absorption channel, and enabling the first heat exchanger to perform defrosting operation. 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 application relates to the technical field of intelligent household electrical appliances, in particular to a defrosting control method and device for an air conditioner and the air conditioner.
Background
At present, the electrochemical compressor technology is gradually applied to the field of air conditioners. The electrochemical compressor works on the principle that protons pass through an ion exchange membrane positioned between two gas diffusion electrodes by using a pump to run, and the protons can drive a non-fluorine refrigerant to pass through the ion exchange membrane; after reaching the other side of the membrane, the refrigerant is released at high pressure and enters the refrigeration cycle system. The air conditioner adopting the electrochemical compressor mostly takes hydrogen as a refrigerating medium, and fills metal hydride into the heat exchanger, and the metal hydride has the characteristics of hydrogen absorption and heat release and hydrogen desorption, so that the temperature of the air flowing through is increased or reduced in the hydrogen absorption or hydrogen desorption process of the metal hydride, and heating or refrigeration is realized.
When the existing air conditioner operates in a heating mode, the outdoor unit can generate a frosting phenomenon, and the frosted outdoor unit influences the heating effect of the air conditioner. The existing method for determining frosting of the outdoor unit is to compare the temperature of a communication pipeline between the outdoor unit and the electrochemical compressor 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 change of the communication pipe between the outdoor unit and the electrochemical compressor, such as the malfunction of the indoor unit, the abnormal operation of the electrochemical compressor, and the blockage of the communication pipe.
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 temperature of the communication pipeline between the outdoor unit and the electrochemical compressor.
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 determine the frosting state of an outdoor unit more accurately.
In some embodiments, the air conditioner includes an electrochemical compressor and a first heat exchanger in communication with the electrochemical compressor through a hydrogen discharge passage and mounted in an outdoor environment, the method comprising: acquiring a temperature value of the first heat exchanger; if the temperature value is matched with a preset temperature value, acquiring a power value of the air conditioner; and if the power value indicates that the first heat exchanger is in a frosting state, switching the hydrogen discharge channel into a hydrogen absorption channel, and enabling the first heat exchanger to perform defrosting operation.
In some embodiments, the first heat exchanger is determined to be in a frosting condition as follows: acquiring the variable quantity of the power value; determining the power value change rate according to the change amount; and if the power value change rate is matched with a first threshold value, determining that the first heat exchanger is in a frosting state.
In some embodiments, the rate of change of power value first matches a threshold value, including: the rate of change of the power value is greater than zero and the rate of change of the power value is less than or equal to the first threshold.
In some embodiments, the first heat exchanger is determined to be in a frosting condition as follows: acquiring the variable quantity of the power value corresponding to different preset time periods; and if the variable quantity of the power value corresponding to different preset time periods is matched with a second threshold value, determining that the first heat exchanger is in a frosting state.
In some embodiments, after the switching the hydrogen discharge channel into the hydrogen absorption channel, the method further includes: re-acquiring the temperature value of the first heat exchanger; and if the re-acquired temperature value of the first heat exchanger is not matched with the preset temperature value, switching the hydrogen absorption channel into a hydrogen discharge channel so as to enable the first heat exchanger to finish defrosting operation.
In some embodiments, the air conditioner further comprises a power source for supplying power to the electrochemical compressor, and the switching the hydrogen discharge channel into the hydrogen absorption channel comprises: and switching the connection state of the anode and the cathode of the power supply and the electrochemical compressor.
In some embodiments, the air conditioner further comprises: the first electric control switch is arranged at the joint of the power supply anode and the electrochemical compressor; the second electric control switch is arranged at the joint of the cathode of the power supply and the electrochemical compressor; the switching of the positive and negative polarity of the connection of the power supply to the electrochemical compressor comprises: and switching the first electric control switch to be connected with the negative electrode of the power supply, and switching the second electric control switch to be connected with the positive electrode of the power supply.
In some embodiments, the air conditioner comprises an electrochemical compressor, a first heat exchanger which is communicated with the electrochemical compressor through a hydrogen discharge channel and is installed in an outdoor environment, and a controller, wherein the controller acquires a temperature value of the first heat exchanger; when the temperature value is matched with a preset temperature value, acquiring a power value of the air conditioner; and if the power value indicates that the first heat exchanger is in a frosting state, switching the hydrogen discharge channel into a hydrogen absorption channel, and enabling the first heat exchanger to perform defrosting operation.
In some embodiments, the apparatus includes a processor and a memory storing program instructions, wherein the processor is configured to execute the defrost control method for an air conditioner as described above when executing the program instructions.
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 first heat exchanger, and if the temperature value is matched with the preset temperature value, the air conditioner is possibly in a frosting state. And then obtaining the power value of the air conditioner, wherein the heat exchange efficiency of the first heat exchanger is reduced when the first heat exchanger is frosted, so that the overall power of the air conditioner is increased. At this time, whether the first heat exchanger is in a frosting state or not can be determined according to the power value of the air conditioner, and the hydrogen discharge channel is switched to the hydrogen absorption channel under the condition that the first heat exchanger is in the frosting state, so that the first heat exchanger performs a defrosting operation. The method 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.
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 an air conditioner provided by an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of another defrost control method for an air conditioner provided by an embodiment of the present disclosure;
fig. 7 is a schematic diagram of a defrost control apparatus 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 and 5, an embodiment of the present disclosure provides a defrosting control method for an air conditioner, which includes an electrochemical compressor 10 and a first heat exchanger 201 connected to the electrochemical compressor 10 through a hydrogen discharge passage 200 and installed in an outdoor environment. The method comprises the following steps:
and S01, acquiring a temperature value of the first heat exchanger.
S02, judging whether the temperature value is matched with the preset temperature value, if yes, executing S03.
And S03, acquiring the power value of the air conditioner.
And S04, judging whether the first heat exchanger is in a frosting state or not according to the power value, and if so, executing S05.
And S05, switching the hydrogen discharge channel to the hydrogen absorption channel to enable the first heat exchanger to perform defrosting operation.
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 first heat exchanger, and if the temperature value is matched with the preset temperature value, the air conditioner is probably in a frosting state. And then obtaining the power value of the air conditioner, wherein the heat exchange efficiency of the first heat exchanger is reduced when the first heat exchanger is frosted, so that the overall power of the air conditioner is increased. At this time, whether the first heat exchanger is in a frosting state or not can be determined according to the power value of the air conditioner, and the hydrogen discharge channel is switched to the hydrogen absorption channel under the condition that the first heat exchanger is in the frosting state, so that the first heat exchanger performs a defrosting operation. The method 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.
Optionally, the temperature value is matched with the preset temperature value, and may be equal to the preset temperature value or equal to the sum of the preset temperature value and the preset deviation value. Wherein the preset temperature value is 0 ℃ (centigrade). The preset deviation value is [ -2 ℃ and-0.2 ℃).
Optionally, as shown in fig. 2, it is determined that the first heat exchanger is in the frosting state according to the following manner:
and S11, acquiring the variation of the power value.
And S12, determining the power value change rate according to the change amount.
And S13, judging whether the power value change rate is matched with the first threshold value, if so, executing S14.
And S14, determining that the first heat exchanger is in a frosting state.
In this way, since the power change rate can reflect the change in the power value, the amount of change in the power value is acquired and the power value change rate is determined based on the amount of change. In addition, if the power value is kept stable or the variation of the power value is very small, the first heat exchanger is not in a frosting state, so that a first threshold value is set, and only when the variation of the power value is matched with the first threshold value, the first heat exchanger is determined to be in the frosting state, so that frosting of the outdoor unit is accurately determined.
The power value change rate is determined according to the variation, which can be a preset time length, the variation of the power value is the variation of the preset time length, and the power value change rate is determined by the ratio of the variation of the power value to the preset time length. The preset duration can be set according to actual requirements. This is not a particular limitation of the present application.
Optionally, the matching of the power value change rate with the first threshold includes:
the rate of change of the power value is greater than zero and the rate of change of the power value is less than or equal to a first threshold.
Therefore, the power value change rate is larger than the first preset value and falls into the first preset range, the power value is stably changed and the power value does not change suddenly, and therefore the first heat exchanger is determined to be in the frosting state, and the outdoor unit is more accurately determined to be in the frosting state.
The first threshold value may be set according to the type of the air conditioner, and the first threshold value is associated with the cooling capacity/heating capacity of the air conditioner.
Optionally, as shown in fig. 3, it is determined that the first heat exchanger is in the frosting state according to the following manner:
and S21, acquiring the variation of the power values corresponding to different preset time periods.
And S22, judging whether the variation of the power values corresponding to different preset time periods are matched with the second threshold value, if so, executing S23.
And S23, determining that the first heat exchanger is in a frosting state.
In this way, the variation of the power value corresponding to different preset time periods is obtained, and if the variation of the power value corresponding to different preset time periods is matched with the second threshold value, the power value is stably changed, so that the first heat exchanger is determined to be in the frosting state.
The variation of the power value corresponding to each of the different preset time periods is matched with the second threshold, and may be that the variation of the power value corresponding to each of the different preset time periods is greater than the second threshold. The second threshold may be greater than or equal to zero or set according to actual requirements. This is not a particular limitation of the present application. As an example, the second threshold is zero, and the variation of the power values corresponding to different preset time periods is greater than zero, which indicates that the power values corresponding to different preset time periods are steadily increased, and further accurately determines that the first heat exchanger is in the frosting state.
As shown in fig. 4 and 5, the embodiment of the present disclosure further provides a defrosting control method for an air conditioner, where the air conditioner includes an electrochemical compressor 10 and a first heat exchanger 201 communicated with the electrochemical compressor 10 through a hydrogen discharge passage 200 and installed in an outdoor environment. The method comprises the following steps:
and S31, acquiring a temperature value of the first heat exchanger.
S32, judging whether the temperature value is matched with the preset temperature value, if yes, executing S33.
And S33, acquiring the power value of the air conditioner.
And S34, judging whether the first heat exchanger is in a frosting state or not according to the power value, and if so, executing S35.
And S35, switching the hydrogen discharge channel to the hydrogen absorption channel to enable the first heat exchanger to perform defrosting operation.
And S36, re-acquiring the temperature value of the first heat exchanger.
And S37, judging whether the re-acquired temperature value of the first heat exchanger is matched with the preset temperature value, and if not, executing S38.
And S38, switching the hydrogen absorption channel to the hydrogen discharge channel so that the first heat exchanger finishes the defrosting operation.
By adopting the defrosting control method for the air conditioner provided by the embodiment of the disclosure, the air conditioner switches the hydrogen discharge channel into the hydrogen absorption channel to enable the first heat exchanger to execute the defrosting operation, then obtains the temperature of the first heat exchanger again, and judges whether the temperature is matched with the preset temperature value, if the temperature is not matched with the preset temperature value, the first heat exchanger is indicated to be successfully defrosted, so that the hydrogen absorption channel is switched into the hydrogen discharge channel, and the defrosting operation of the first heat exchanger is finished.
As shown in fig. 5 and 6, the embodiment of the present disclosure further provides a defrosting control method for an air conditioner, where the air conditioner includes an electrochemical compressor 10, a first heat exchanger 201 communicated with the electrochemical compressor 10 through a hydrogen discharge passage 200 and installed in an outdoor environment, and a power supply 400 for supplying power to the electrochemical compressor 10. The method comprises the following steps:
and S41, acquiring a temperature value of the first heat exchanger.
S42, judging whether the temperature value is matched with the preset temperature value, if yes, executing S43.
And S43, acquiring the power value of the air conditioner.
And S44, judging whether the first heat exchanger is in a frosting state or not according to the power value, and if so, executing S45.
And S45, switching the connection state of the anode and the cathode of the power supply and the electrochemical compressor to enable the first heat exchanger to perform defrosting operation.
By adopting the defrosting control method for the air conditioner provided by the embodiment of the disclosure, the hydrogen discharge channel can be converted into the hydrogen absorption channel by switching the connection state of the anode and the cathode of the power supply and the electrochemical compressor, so that the air conditioner is in a heating state, and the first heat exchanger is defrosted.
Optionally, the air conditioner further includes a first electronic control switch 401 and a second electronic control switch 402. A first electronically controlled switch 401 is mounted at the junction of the positive pole of the power supply 400 and the electrochemical compressor 10. A second electronically controlled switch 402 is mounted at the junction of the negative pole of the power supply 400 and the electrochemical compressor 10.
Switching power supply and the positive negative pole of being connected of electrochemistry compressor includes:
the first electric control switch is switched to be connected with the negative electrode of the power supply, and the second electric control switch is switched to be connected with the positive electrode of the power supply.
Therefore, the first electric control switch can be switched to be connected with the negative electrode of the power supply and the second electric control switch can be switched to be connected with the positive electrode of the power supply, the hydrogen discharging channel can be converted into the hydrogen absorbing channel, the air conditioner is in a heating state, and the first heat exchanger is defrosted.
Optionally, the first electronically controlled switch 401 and/or the second electronically controlled switch 402 are single pole double throw switches. Therefore, under the condition that the first electric control switch and the second electric control switch are single-pole double-throw switches, the hydrogen discharge channel can be converted into the hydrogen absorption channel by adjusting the connection state of the first electric control switch and the second electric control switch, so that the air conditioner is in a heating state.
In practical use (as shown in fig. 5), the air conditioner includes an electrochemical compressor 10, a first heat exchanger 201 communicated with the electrochemical compressor 10 through a hydrogen discharge passage 200 and installed in an outdoor environment, a second heat exchanger 301 communicated with the electrochemical compressor through a hydrogen suction passage 300 and installed in an indoor environment, and a power source 400 for supplying power to the electrochemical compressor 10. A first electronically controlled switch 401 is mounted at the junction of the positive pole of the power supply 400 and the electrochemical compressor 10. A second electronically controlled switch 402 is mounted at the junction of the negative pole of the power supply 400 and the electrochemical compressor 10.
The temperature value being equal to the preset temperature value indicates that the temperature value matches the preset temperature value. The preset temperature is 0 ℃. The first threshold is 200W (watts).
The defrosting control method for the air conditioner comprises the following execution steps:
s51, obtaining the temperature value of the first heat exchanger as 0 ℃.
S52, since the temperature value matches the preset temperature value, S53 is performed.
And S53, acquiring the variation of the power value.
And S54, determining the power value change rate to be 150W according to the change amount.
S55, since the power value change rate is greater than zero and the power change rate is less than or equal to the first threshold, it indicates that the power value is stably increased and the power value is not abruptly changed, and thus it can be determined that the first heat exchanger is in a frosted state.
And S56, switching the first electric control switch to be connected with the negative electrode of the power supply and switching the second electric control switch to be connected with the positive electrode of the power supply, so that the hydrogen discharge channel is switched to be the hydrogen absorption channel, and the first heat exchanger executes defrosting operation.
And S57, after the defrosting operation of the first heat exchanger is performed for 1 hour, the temperature of the first heat exchanger is acquired to be 10 ℃.
S58, since the re-acquired temperature value of the first heat exchanger does not match the preset temperature value, S59 is performed.
And S59, switching the first electric control switch to be connected with the positive electrode of the power supply, switching the second electric control switch to be connected with the negative electrode of the power supply, and switching the hydrogen absorption channel to the hydrogen discharge channel so that the first heat exchanger finishes defrosting operation.
Referring to fig. 5, an embodiment of the present disclosure provides an air conditioner, including an electrochemical compressor 10, a first heat exchanger 201 communicated with the electrochemical compressor 10 through a hydrogen discharge channel 200 and installed in an outdoor environment, and a controller, where the controller obtains a temperature value of the first heat exchanger 201, and obtains a power value of the air conditioner when the temperature value matches a preset temperature value. If the power value indicates that the first heat exchanger 201 is in the frosting state, the hydrogen discharge passage 200 is switched to the hydrogen absorption passage, so that the first heat exchanger 201 performs the defrosting operation.
By adopting the air conditioner provided by the embodiment of the disclosure, the controller can determine whether the first heat exchanger is in a frosting state according to the power value of the air conditioner, and the hydrogen discharge channel is switched to the hydrogen absorption channel under the condition that the first heat exchanger is in the frosting state, so that the first heat exchanger performs a defrosting operation. 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.
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 including an electrochemical compressor and a first heat exchanger in communication with the electrochemical compressor through a discharge passage and installed in an outdoor environment, the method comprising:
acquiring a temperature value of the first heat exchanger;
if the temperature value is matched with a preset temperature value, acquiring a power value of the air conditioner;
and if the power value indicates that the first heat exchanger is in a frosting state, switching the hydrogen discharge channel into a hydrogen absorption channel, and enabling the first heat exchanger to perform defrosting operation.
2. The method of claim 1, wherein the first heat exchanger is determined to be in a frosted condition by:
acquiring the variable quantity of the power value;
determining the power value change rate according to the change amount;
and if the power value change rate is matched with a first threshold value, determining that the first heat exchanger is in a frosting state.
3. The method of claim 2, wherein the rate of change of power values first matches a threshold value, comprising:
the rate of change of the power value is greater than zero and the rate of change of the power value is less than or equal to the first threshold.
4. The method of claim 1, wherein the first heat exchanger is determined to be in a frosted condition by:
acquiring the variable quantity of the power value corresponding to different preset time periods;
and if the variable quantity of the power value corresponding to different preset time periods is matched with a second threshold value, determining that the first heat exchanger is in a frosting state.
5. The method according to any one of claims 1 to 4, wherein after the switching the hydrogen discharge channel into the hydrogen absorption channel, further comprising:
re-acquiring the temperature value of the first heat exchanger;
and if the re-acquired temperature value of the first heat exchanger is not matched with the preset temperature value, switching the hydrogen absorption channel into a hydrogen discharge channel so as to enable the first heat exchanger to finish defrosting operation.
6. The method of any one of claims 1 to 4, wherein the air conditioner further comprises a power source for supplying power to the electrochemical compressor, and the switching the hydrogen discharge channel to the hydrogen absorption channel comprises:
and switching the connection state of the anode and the cathode of the power supply and the electrochemical compressor.
7. The method of claim 6, wherein the air conditioner further comprises:
the first electric control switch is arranged at the joint of the power supply anode and the electrochemical compressor;
the second electric control switch is arranged at the joint of the cathode of the power supply and the electrochemical compressor;
the switching of the positive and negative polarity of the connection of the power supply to the electrochemical compressor comprises:
and switching the first electric control switch to be connected with the negative electrode of the power supply, and switching the second electric control switch to be connected with the positive electrode of the power supply.
8. An air conditioner is characterized by comprising an electrochemical compressor, a first heat exchanger and a controller, wherein the first heat exchanger is communicated with the electrochemical compressor through a hydrogen discharge channel and is installed in an outdoor environment; when the temperature value is matched with a preset temperature value, acquiring a power value of the air conditioner; and if the power value indicates that the first heat exchanger is in a frosting state, switching the hydrogen discharge channel into a hydrogen absorption channel, and enabling the first heat exchanger to perform defrosting operation.
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 a defrost control method for an air conditioner as claimed in any one of claims 1 to 7 when executing the program instructions.
10. An air conditioner characterized by comprising the defrosting control means for an air conditioner according to claim 9.
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| WO2023071153A1 (en) * | 2021-10-28 | 2023-05-04 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner, and air conditioner control apparatus and air conditioner |
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| CN112856720B (en) | 2022-08-19 |
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