CN114353260A

CN114353260A - Method and device for judging refrigerant quantity, air conditioner and storage medium

Info

Publication number: CN114353260A
Application number: CN202111482057.6A
Authority: CN
Inventors: 王亚东; 杨坤
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-15
Anticipated expiration: 2041-12-06
Also published as: WO2023103355A1; CN114353260B

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for judging refrigerant quantity, which comprises the following steps: obtaining an actual noise value of an outdoor unit of an air conditioner; comparing the actual noise value with a preset standard noise value; and under the condition that the actual noise value is lower than the standard noise value, judging that the refrigerant quantity is lost. After the actual noise value of the outdoor unit of the air conditioner is obtained, whether the refrigerant is lacked is judged according to the magnitude relation between the actual noise value and the standard noise value. Therefore, in the actual application process, whether the refrigerant quantity is lower than the standard refrigerant quantity can be judged only by detecting the actual noise value of the air conditioner, and the refrigerant quantity judgment process in the air conditioner is greatly simplified. The application also discloses a device, an air conditioner and a storage medium for judging the amount of the refrigerant.

Description

Method and device for judging refrigerant quantity, air conditioner and storage medium

Technical Field

The present disclosure relates to the field of intelligent home appliances, and more particularly, to a method and an apparatus for determining refrigerant quantity, an air conditioner, and a storage medium.

Background

Due to the limitation of the service life and the manufacturing process of the air conditioner, the refrigerant in the air conditioner can leak to different degrees after being used for a long time. The leakage of the refrigerant not only affects the refrigeration efficiency of the air conditioner, but also may cause fire or even explosion when the leakage of the refrigerant increases to a certain extent. It can be seen that the detection of the amount of refrigerant in the air conditioner is very important.

A conventional refrigerant state self-checking method includes: acquiring the frequency of a compressor when the air conditioner operates; when the frequency of the compressor reaches a stable operation range, acquiring self-checking related parameters of a fluorine-deficient state according to a preset time interval t and recording the self-checking related parameters and the frequency of the compressor once; calculating the increase rate KR of the current compressor winding temperature according to the current and last recorded compressor winding temperature TR; calculating the increase rate KP of the current exhaust temperature according to the current and last recorded exhaust temperature TP; judging only when KR and KP are both positive: if KR-KP is less than the first threshold, judging that the system does not lack fluorine; if the KR-KP is between the first threshold and the second threshold, judging that the system is in a weak fluorine-lacking state, and recording the time when the system is in the weak fluorine-lacking state; and if the KR-KP is greater than a second threshold value, judging that the system is in a serious fluorine deficiency state, and giving an alarm to prompt that the system is seriously fluorine deficient.

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:

although the related art can judge whether the refrigerant quantity of the air conditioner is lost, the judging process involves numerous parameters, so that the process is too complicated.

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 method and a device for judging refrigerant quantity, an air conditioner and a storage medium, so as to simplify the process of judging the refrigerant quantity in the air conditioner.

In some embodiments, the method comprises: detecting an actual noise value of an outdoor unit of an air conditioner; comparing the actual noise value with a preset standard noise value; and under the condition that the actual noise value is lower than the standard noise value, judging that the refrigerant is lacked.

In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to execute the method for refrigerant quantity determination described above when executing the program instructions.

In some embodiments, the air conditioner includes: the device for judging the amount of the refrigerant is described above.

In some embodiments, the storage medium stores program instructions that, when executed, perform the above-described method for refrigerant quantity determination.

The method and the device for judging the amount of the refrigerant, the air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:

and after the actual noise value of the outdoor unit of the air conditioner is obtained, judging whether the refrigerant is lost or not according to the magnitude relation between the actual noise value and the standard noise value. Therefore, in the actual application process, whether the refrigerant quantity is lower than the standard refrigerant quantity can be judged only by detecting the actual noise value of the air conditioner, and the refrigerant quantity judgment process in the air conditioner is greatly simplified.

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 system environment for determining refrigerant quantity according to an embodiment of the disclosure;

fig. 2 is a schematic diagram of a method for determining refrigerant quantity according to an embodiment of the disclosure;

fig. 3 is a schematic diagram of another method for determining refrigerant quantity according to an embodiment of the disclosure;

fig. 4 is a schematic diagram of another method for determining refrigerant quantity according to an embodiment of the disclosure;

fig. 5 is a schematic diagram of another method for determining refrigerant quantity according to an embodiment of the disclosure;

fig. 6 is a schematic diagram of an apparatus for determining a refrigerant quantity according to an 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 "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.

In the embodiment of the disclosure, the intelligent household appliance is a household appliance formed by introducing a microprocessor, a sensor technology and a network communication technology into the household appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent household appliance usually depends on the application and processing of modern technologies such as internet of things, internet and an electronic chip, for example, the intelligent household appliance can realize the remote control and management of a user on the intelligent household appliance by connecting the intelligent household appliance with the electronic device. The air conditioner in the embodiment of the disclosure belongs to the intelligent household appliance.

In the disclosed embodiment, the terminal device is an electronic device with a wireless connection function, and the terminal device can be in communication connection with the above intelligent household appliance by connecting to the internet, or can be in communication connection with the above intelligent household appliance directly in a bluetooth mode, a wifi mode, or the like. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built in a floating car, or any combination thereof. The mobile device may include, for example, a cell phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, or the like, or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, and the like.

Referring to fig. 1, a system for determining refrigerant quantity according to an embodiment of the present disclosure includes an air conditioner 11 and a noise detection device 12. The noise detection device 12 is configured to detect an actual noise value of the outdoor unit of the air conditioner and transmit the actual noise value to the air conditioner.

Fig. 2 is a schematic diagram of a method for determining refrigerant quantity according to an embodiment of the disclosure. The method for judging the amount of the refrigerant can be executed in the air conditioner or a server, such as a cloud platform which is communicated with the air conditioner. In the embodiments of the present disclosure, the present solution is explained with a processor of an air conditioner as an execution subject.

Referring to fig. 2, the method for determining the amount of refrigerant includes:

s201, the processor obtains an actual noise value of an outdoor unit of the air conditioner.

The actual noise value of the outdoor unit is detected by the noise detection device and sent to the processor of the air conditioner. The noise detection device can be arranged on a wall body near the outdoor unit of the air conditioner, the surface of a shell of the outdoor unit of the air conditioner, the inside of the shell and the like, and can also be used as a single device.

The time period for noise value detection may also be set. The noise value is detected every other cycle.

The time period is set by the user or set according to big data. Therefore, the resource waste caused by continuous detection can be avoided while the refrigerant is detected to be missing in time.

S202, the processor compares the actual noise value with a preset standard noise value.

The standard noise value may be experimentally measured and then stored for recall.

And S203, judging that the refrigerant quantity is lacked by the processor under the condition that the actual noise value is lower than the standard noise value.

By adopting the method for judging the refrigerant quantity provided by the embodiment of the disclosure, the following technical effects can be realized: and after the actual noise value of the outdoor unit of the air conditioner is obtained, judging whether the refrigerant is lost or not according to the magnitude relation between the actual noise value and the standard noise value. Therefore, in the actual application process, whether the refrigerant quantity is lower than the standard refrigerant quantity can be judged only by detecting the actual noise value of the air conditioner, and the refrigerant quantity judgment process in the air conditioner is greatly simplified.

Alternatively, the obtaining of the actual noise value may be continuous. That is, the noise detecting device continues the actual noise value of the outdoor unit and transmits the noise value to the processor. The comparison of the actual noise value with the standard noise value is also continued. Therefore, the refrigerant quantity missing condition can be detected at the first time, so that a user or related personnel can conveniently and timely perform corresponding operation, and the negative influence on the use of the air conditioner caused by the refrigerant quantity missing is avoided.

Alternatively, the actual noise value may be obtained intermittently. In particular, the obtaining of the actual noise value may be periodic. Namely, the noise detection device periodically detects the actual noise value of the outdoor unit and sends the actual noise value to the processor. Alternatively, the noise detection device continuously detects an actual noise value of the outdoor unit and periodically transmits the actual noise value to the processor. The comparison of the actual noise value with the standard noise value will be performed periodically. Thus, the refrigerant quantity can be judged, and the resource consumption is reduced.

Optionally, the standard noise values are multiple and respectively correspond to different working conditions, such as a refrigeration working condition, a heating working condition, and the like.

Optionally, the processor compares the actual noise value with a preset standard noise value, including: and comparing the actual noise value under the current working condition with the corresponding standard noise value. Specifically, the processor retrieves a standard noise value corresponding to the current operating condition and compares the actual noise value with the standard noise value. Therefore, the refrigerant quantity can be judged in the normal use process of the air conditioner, the influence on a user is small, and the user experience is good.

Optionally, the processor compares the actual noise value with a preset standard noise value, and further includes: and comparing the actual noise values under a plurality of working conditions with the corresponding standard noise values. Specifically, the air conditioner is adjusted to N different working conditions, the processor obtains N actual noise values, and the obtained N actual noise values are compared with the standard noise values under the corresponding working conditions one by one. Therefore, errors are reduced, and the refrigerant quantity is judged more accurately.

Optionally, in step S203, if the actual noise value is lower than the standard noise value, the processor determines that the refrigerant quantity is missing, including: and under the condition that the measured actual noise values are N, when the N actual noise values are all smaller than the corresponding standard noise values, the processor judges that the refrigerant quantity is missing. In this way, refrigerant is judged to be absent only when all detected conditions are consistent with the refrigerant absence conditions, and misjudgment can be reduced.

Optionally, in S203, when the actual noise value is lower than the standard noise value, the processor determines that the refrigerant quantity is missing, and further includes: and under the condition that the measured actual noise values are N, when the M actual noise values are smaller than the corresponding standard noise values, the processor judges that the refrigerant quantity is lost. Wherein M is less than N. Therefore, the influence of individual situations that the actual quantity of the refrigerant is lost but the actual noise value is not smaller than the standard noise value can be avoided, and the misjudgment is effectively avoided.

Fig. 3 is a schematic diagram of a method for determining refrigerant quantity according to an embodiment of the disclosure. The method for judging the amount of the refrigerant can be executed in the air conditioner or a server, such as a cloud platform which is communicated with the air conditioner. In the embodiments of the present disclosure, the present solution is explained with a processor of an air conditioner as an execution subject.

Referring to fig. 3, the method for determining the amount of refrigerant includes:

s301, the processor obtains an actual noise value of an outdoor unit of the air conditioner.

S302, the processor compares the actual noise value with a preset standard noise value.

And S303, under the condition that the actual noise value is lower than the standard noise value, the processor judges that the refrigerant quantity is lacked.

S304, the processor calculates the refrigerant missing proportion according to the actual noise value and the standard noise value.

By adopting the method for judging the refrigerant quantity provided by the embodiment of the disclosure, the following technical effects can be realized: and after the actual noise value of the outdoor unit of the air conditioner is obtained, judging whether the refrigerant is lost or not according to the magnitude relation between the actual noise value and the standard noise value. Therefore, in the actual application process, whether the refrigerant quantity is lower than the standard refrigerant quantity can be judged only by detecting the actual noise value of the air conditioner, and the refrigerant quantity judgment process in the air conditioner is greatly simplified. In addition, the specific refrigerant loss proportion can be calculated according to the actual noise value and the standard noise value, and the method can be used for guiding the actual refrigerant filling operation.

Optionally, in S304, the calculating, by the processor, the refrigerant loss ratio according to the actual noise value and the labeled noise value includes:

the processor calculates the refrigerant missing proportion

Wherein, A is a standard noise value, T is an actual noise value, and K is a refrigerant sound reference value.

Therefore, the refrigerant missing proportion can be accurately obtained, and specific numerical values are provided for users or related personnel, so that different operations can be executed according to the numerical values of the refrigerant missing proportion.

The standard noise value a is mainly derived from three sources: fan noise, compressor noise and refrigerant noise. Therefore, the refrigerant sound reference value K is the measured standard noise value A minus the fan noise value and the compressor noise value under the corresponding working conditions. The refrigerant sound reference value K under different working conditions can be obtained through tests, and then the measured K value is stored for calling. Therefore, the refrigerant missing proportion obtained by calculation is more accurate.

Alternatively, the different noise sources may be distinguished by analyzing the frequency of the noise values. The noise frequency of the fan and the compressor is low, and the frequency of the refrigerant is high. In the absence of refrigerant, the refrigerant frequency increases. Therefore, noise values from different sources can be further distinguished, and the refrigerant quantity can be more accurately judged.

Fig. 4 is a schematic diagram of a method for determining refrigerant quantity according to an embodiment of the disclosure. The method for judging the amount of the refrigerant can be executed in the air conditioner or a server, such as a cloud platform which is communicated with the air conditioner. In the embodiments of the present disclosure, the present solution is explained with a processor of an air conditioner as an execution subject.

Referring to fig. 4, the method for determining the amount of refrigerant includes:

s401, the processor obtains an actual noise value of an outdoor unit of the air conditioner.

S402, the processor compares the actual noise value with a preset standard noise value.

And S403, when the actual noise value is lower than the standard noise value, the processor judges that the refrigerant quantity is deficient.

S404, the processor calculates the refrigerant missing proportion according to the actual noise value and the standard noise value.

And S405, the processor sends a prompt instruction when the refrigerant missing ratio is greater than or equal to the refrigerant threshold value.

By adopting the method for judging the refrigerant quantity provided by the embodiment of the disclosure, the following technical effects can be realized: and after the actual noise value of the outdoor unit of the air conditioner is obtained, judging whether the refrigerant is lost or not according to the magnitude relation between the actual noise value and the standard noise value. Therefore, in the actual application process, whether the refrigerant quantity is lower than the standard refrigerant quantity can be judged only by detecting the actual noise value of the air conditioner, and the refrigerant quantity judgment process in the air conditioner is greatly simplified. In addition, a specific refrigerant loss ratio can be calculated according to the actual noise value and the standard noise value and used for guiding the refrigerant filling operation.

Optionally, the value range of the refrigerant threshold is [ 3%, 8% ]. In particular, it may be 4%, 5%, 6% or 7%. The influence of refrigerant missing in the range on the use of the air conditioner can be ignored, and therefore frequent prompt sending to a user can be avoided. The refrigerant filling can be avoided when unnecessary, and the user operation is further simplified.

Optionally, the sending of the prompt instruction by the processor includes: the air conditioner is electrically connected with other terminal equipment and sends a prompt instruction to the other terminal equipment. The terminal equipment can be a smart phone end, a computer end and the like of a user, can be smart household appliances such as a smart refrigerator and a smart sound box, and can also be a prompt lamp and the like. For example, the smart speaker may be controlled to emit a preset warning tone. Or controlling the prompting lamp to light.

Fig. 5 is a schematic diagram of a method for determining refrigerant quantity according to an embodiment of the disclosure. The method for judging the amount of the refrigerant can be executed in the air conditioner or a server, such as a cloud platform which is communicated with the air conditioner. In the embodiments of the present disclosure, the present solution is explained with a processor of an air conditioner as an execution subject.

Referring to fig. 5, the method for determining the amount of refrigerant includes:

s501, the processor obtains an actual noise value of an outdoor unit of the air conditioner.

S502, the processor compares the actual noise value with a preset standard noise value.

And S503, when the actual noise value is lower than the standard noise value, the processor judges that the refrigerant quantity is deficient.

And S504, the processor calculates the refrigerant missing proportion according to the actual noise value and the standard noise value.

And S505, calculating the filling amount by the processor according to the refrigerant deficiency proportion.

By adopting the method for judging the refrigerant quantity provided by the embodiment of the disclosure, the following technical effects can be realized: and after the actual noise value of the outdoor unit of the air conditioner is obtained, judging whether the refrigerant is lost or not according to the magnitude relation between the actual noise value and the standard noise value. Therefore, in the actual application process, whether the refrigerant quantity is lower than the standard refrigerant quantity can be judged only by detecting the actual noise value of the air conditioner, and the refrigerant quantity judgment process in the air conditioner is greatly simplified. In addition, the accurate refrigerant filling amount can be calculated, and related personnel can add the refrigerant conveniently according to the refrigerant filling amount.

Optionally, in S505, the processor calculates the filling amount according to the refrigerant shortage ratio, including:

the processor obtains the standard refrigerant filling quantity M0 and calculates the filling quantity M B M0.

Wherein, B is the refrigerant deficiency proportion.

Here, the standard refrigerant charge amount is stored in a memory of the air conditioner before shipment from the factory and can be directly retrieved when used. This value is directly related to the model of the user's air conditioner. For example, if the refrigerant is R410A refrigerant, the filling amount is about 800-1000 g for 1P power, about 800-1000 g for 2P power, and about 1200-1500 g for 3P power.

Optionally, the air conditioner is connected to a display screen. The processor sends the refrigerant missing proportion and the filling amount to the display and the display shows the refrigerant missing proportion and the filling amount. Therefore, the user or related maintenance personnel can intuitively know the refrigerant quantity missing condition, and further more accurately adjust the refrigerant quantity.

Referring to fig. 6, an apparatus for determining a refrigerant quantity according to an embodiment of the present disclosure includes a processor (processor)60 and a memory (memory) 61. Optionally, the apparatus may further include a Communication Interface (Communication Interface)62 and a bus 63. The processor 60, the communication interface 62 and the memory 61 may communicate with each other through a bus 63. Communication interface 62 may be used for information transfer. The processor 60 may call the logic instructions in the memory 61 to execute the method for determining the amount of refrigerant according to the above embodiment.

Furthermore, the logic instructions in the memory 61 may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product.

The memory 61 is a storage medium and can 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 60 executes functional applications and data processing by executing program instructions/modules stored in the memory 61, that is, implements the method for determining the amount of refrigerant in the above embodiment.

The memory 61 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. Further, the memory 61 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 device for judging the amount of refrigerant.

The embodiment of the disclosure provides a storage medium storing computer-executable instructions configured to execute the method for determining the amount of refrigerant.

The 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

1. A method for refrigerant quantity judgment is characterized by comprising the following steps:

acquiring an actual noise value of an outdoor unit of an air conditioner;

comparing the actual noise value with a preset standard noise value;

and under the condition that the actual noise value is lower than the standard noise value, judging that the refrigerant quantity is lost.

2. The method of claim 1, further comprising, in the event that the actual noise value is below a standard noise value: and calculating the refrigerant missing proportion according to the actual noise value and the standard noise value.

3. The method of claim 2, wherein the calculating the refrigerant deficiency ratio comprises:

calculating the refrigerant missing ratio

4. The method of claim 2, wherein after calculating the refrigerant deficiency ratio, further comprising:

and sending a prompt instruction under the condition that the refrigerant loss ratio is greater than or equal to the refrigerant threshold value.

5. The method of claim 4, wherein the refrigerant threshold value is in a range of [ 3%, 8% ].

6. The method according to any one of claims 2 to 5, further comprising, after calculating the refrigerant deficiency ratio:

and calculating the filling amount according to the refrigerant deficiency proportion.

7. The method of claim 6, wherein the calculating the filling amount according to the refrigerant deficiency ratio comprises:

obtaining standard refrigerant filling quantity M0;

calculating a perfusion amount M-B-M0;

wherein, B is the refrigerant deficiency proportion.

8. An apparatus for refrigerant quantity determination, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute the method for refrigerant quantity determination according to any one of claims 1 to 7 when executing the program instructions.

9. An air conditioner characterized by comprising the device for judging the amount of refrigerant according to claim 8.

10. A storage medium storing program instructions that, when executed, perform the method for refrigerant quantity determination as claimed in any one of claims 1 to 7.