Clothes processing equipment, refrigerant leakage detection method and device thereof and medium

Abstract

The invention relates to clothes processing equipment, a refrigerant leakage detection method and device of the clothes processing equipment and a medium. The refrigerant leakage detection method of the clothes processing equipment comprises the steps that at least the compressor temperature and the circulating air inlet barrel temperature of the clothes processing equipment in the drying program running process are obtained; and refrigerant leakage is determined based on the condition that the circulating air inlet barrel temperature and the compressor temperature meet preset conditions. According to the method, the compressor temperature and the circulating air inlet barrel temperature of the clothes processing equipment in the drying program operation process are obtained, when it is determined that the compressor temperature and the circulating air inlet barrel temperature meet the preset conditions, it is determined that the refrigerant leaks, and therefore refrigerant leakage detection is achieved.

Description

Technical Field

[0001] This disclosure relates to the field of clothing processing technology, and in particular to a clothing processing device and its refrigerant leakage detection method, apparatus, and medium. Background Technology

[0002] Clothing processing equipment, such as dryers or washing machines with drying functions, can heat wet clothes after washing to remove moisture and dry the clothes.

[0003] In related technologies, clothing processing equipment heats refrigerant using a compressor during the drying process. The refrigerant exchanges heat with the internal air, generating a hot airflow that carries away moisture from the clothes, thus drying them. However, clothing processing equipment can age over time, causing leaks in the refrigerant supply pipes. This can lead to the compressor malfunctioning and affecting the drying effect. Therefore, detecting refrigerant leaks within the clothing processing equipment is crucial. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this disclosure provides a clothing treatment device and a method, apparatus and medium for detecting refrigerant leakage.

[0005] This disclosure provides a method for detecting refrigerant leakage in a garment processing device, the garment processing device including a garment processing tank and a compressor; the method for detecting refrigerant leakage in the garment processing device includes:

[0006] The minimum compressor temperature and circulating air inlet temperature of the garment processing equipment during the drying process are obtained.

[0007] Based on the fact that the temperature of the circulating air entering the tank and the temperature of the compressor meet preset conditions, a refrigerant leak is determined.

[0008] Optionally, the preset conditions include the circulating air inlet temperature being greater than the compressor temperature.

[0009] Optionally, before determining the refrigerant leak, the method further includes:

[0010] Obtain the phase current of the garment processing equipment during the drying process;

[0011] The preset condition also includes that the phase current is less than a preset phase current threshold.

[0012] Optionally, the garment processing equipment may also include a frequency converter;

[0013] The phase current is detected based on the frequency converter.

[0014] Optionally, the garment processing device further includes a first temperature sensor and a second temperature sensor. The first temperature sensor is disposed on one side of the heat pipe of the compressor and is used to detect the temperature of the heat pipe of the compressor. The second temperature sensor is disposed at the air inlet of the garment processing drum and is used to detect the temperature of the circulating air entering the drum.

[0015] The temperature of the compressor is defined as the temperature of the heat pipe of the compressor.

[0016] Optionally, before determining the refrigerant leak, the method further includes:

[0017] Obtain the compressor's operating time;

[0018] Based on the working time being equal to or greater than a preset time threshold, a judgment is made to determine the execution of preset conditions for refrigerant leakage.

[0019] Optionally, before determining the refrigerant leak, the method further includes:

[0020] Obtain the ambient temperature before running the drying program;

[0021] Based on the ambient temperature being equal to or greater than a first preset temperature threshold, a judgment is made to determine the preset conditions for refrigerant leakage.

[0022] Alternatively, based on the fact that the ambient temperature is less than the first preset temperature threshold and the compressor temperature is greater than the second preset temperature threshold, it is determined that there is no refrigerant leakage; the second preset temperature threshold is greater than the first preset temperature threshold.

[0023] This disclosure also provides a refrigerant leakage detection device for a garment processing equipment, the garment processing equipment further including a garment processing tank and a compressor; the refrigerant leakage detection device for the garment processing equipment includes:

[0024] The parameter acquisition module is used to acquire at least the compressor temperature and the circulating air inlet temperature of the garment processing equipment during the drying process.

[0025] The leakage determination module is used to determine refrigerant leakage based on the fact that the temperature of the circulating air inlet and the temperature of the compressor meet preset conditions.

[0026] This disclosure also provides a computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement the steps of the refrigerant leakage detection method for any of the above-described garment handling devices.

[0027] This disclosure also provides a garment processing device, including a memory and a processor;

[0028] The memory stores executable programs or instructions;

[0029] The processor executes the program or instructions to implement the steps of the refrigerant leakage detection method for any of the above-described garment handling devices.

[0030] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0031] This disclosure provides a garment processing device and its refrigerant leakage detection method, apparatus, and medium. During the drying process of the garment processing device, various operating parameters change. This disclosure collects data on the compressor temperature and the temperature of the circulating air inlet drum, among these changing parameters. When the comparison between the compressor temperature and the circulating air inlet drum temperature meets preset conditions, a refrigerant leak can be determined. This disclosure can also collect other operating parameters besides the compressor temperature and the circulating air inlet drum temperature and compare them with preset conditions. Only when all acquired operating parameters meet the preset conditions can a refrigerant leak be determined. This avoids misjudgment of refrigerant leakage due to errors in detecting a single parameter, thus improving detection accuracy. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0033] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A flowchart illustrating a refrigerant leakage detection method for a garment processing device provided in this disclosure embodiment;

[0035] Figure 2 This is a schematic diagram of a refrigerant leakage detection device for a garment processing equipment provided in an embodiment of the present disclosure;

[0036] Figure 3 This is a schematic diagram of a garment processing device provided in an embodiment of the present disclosure. Detailed Implementation

[0037] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0038] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0039] The garment processing equipment includes a garment processing drum and a compressor. The compressor is used to heat the refrigerant in the garment processing equipment, turning it into a high-temperature gas. The heated high-temperature gas exchanges heat with the surrounding air through a condenser, thereby heating the air. The garment processing equipment then blows the heated air into the garment processing drum through a fan, and uses the heated air to remove moisture from the clothes, thereby drying the clothes.

[0040] Figure 1 A flowchart illustrating a refrigerant leakage detection method for a garment handling device provided in this disclosure is shown below. Figure 1 As shown, the detection methods include S110 and S120.

[0041] S110. Obtain at least the compressor temperature and the circulating air inlet temperature of the garment processing equipment during the drying process.

[0042] S120. Based on the fact that the temperature of the circulating air entering the tank and the temperature of the compressor meet the preset conditions, it is determined that there is a refrigerant leak.

[0043] For example, during the drying process of a garment processing device, if a refrigerant leak occurs, several operating parameters will change, such as the compressor temperature and the temperature of the circulating air entering the drum. The garment processing device also includes an auxiliary heating structure, which is used to reheat the air that has already been heated by the compressor and condenser. When there is no refrigerant leak, the compressor heats the refrigerant, and the heated refrigerant exchanges heat with the surrounding air in the condenser, thus heating the air. The air temperature decreases as it is blown into the auxiliary heating structure, and it also decreases again as it is blown into the garment processing drum by the fan after being reheated by the auxiliary heating structure. Therefore, when there is no refrigerant leak, the compressor temperature is higher than the temperature of the circulating air entering the drum. Based on this, the temperatures of the circulating air entering the drum and the compressor can be collected. When the comparison between the compressor temperature and the temperature of the circulating air entering the drum meets a preset condition, a refrigerant leak is determined, thereby achieving refrigerant leak detection.

[0044] This disclosure can also collect other operating status parameters besides compressor temperature and circulating air inlet temperature, and compare them with preset conditions. Only when all the acquired operating status parameters meet the preset conditions can it be determined that refrigerant leakage has occurred. This can avoid misjudging whether refrigerant leakage has occurred due to errors in detecting a single parameter, and improve detection accuracy.

[0045] It should be noted that the operating status parameters also include other parameters besides the compressor temperature and the temperature of the circulating air entering the tank, which are not specifically limited here.

[0046] In some embodiments, the preset conditions include the temperature of the circulating air entering the barrel being greater than the temperature of the compressor.

[0047] For example, when refrigerant leaks, the amount of refrigerant in the compressor decreases. Consequently, the amount of high-temperature gas produced by the compressor through heating the refrigerant also decreases. This reduces the heat exchange between the high-temperature gas and the surrounding air through the condenser, thus weakening the heating effect on the air. After the air undergoes its first heating, it is reheated a second time by an auxiliary heating structure. Since the heating effect of the auxiliary heating structure remains constant, the temperature of the air after the second heating will be higher than the compressor temperature. This results in the circulating air inlet temperature being higher than the compressor temperature. Therefore, when the circulating air inlet temperature is higher than the compressor temperature, a refrigerant leak can be confirmed.

[0048] In some embodiments, before determining refrigerant leakage, the method further includes: acquiring the phase current of the garment handling equipment during the drying process; the preset condition further includes the phase current being less than a preset phase current threshold.

[0049] For example, if the compressor's operating frequency remains constant, when refrigerant leakage occurs, the refrigerant content decreases, thus reducing the work done by the compressor on the refrigerant at the same frequency. Since the compressor's operating voltage remains constant, the compressor's phase current will decrease accordingly. Therefore, the garment handling equipment can acquire the phase current of relevant components during operation. When the acquired phase current is less than a preset phase current threshold, a refrigerant leak is possible. Simultaneously, other operating parameters are acquired and compared, and the comparison results are used to further determine whether a refrigerant leak has occurred. This avoids misjudging refrigerant leakage due to errors in detecting a single parameter, improving detection accuracy.

[0050] In some embodiments, the garment handling equipment further includes a frequency converter; the phase current is detected based on the frequency converter.

[0051] For example, when refrigerant leaks, the phase current required for the compressor to operate decreases, thus reducing the phase current supplied by the inverter to the compressor. A preset phase current threshold can be set, for example, to 1A. The garment processing equipment collects the phase current of the inverter and compares it with the preset phase current threshold. When the phase current is less than 1A, it determines that a refrigerant leak is possible. Simultaneously, other operating parameters are acquired and compared, and based on the comparison results, it further determines whether a refrigerant leak has occurred.

[0052] It should be noted that the preset phase current threshold of 1A is just an example. The specific preset phase current threshold should be set according to the actual situation, and is not limited here.

[0053] In some embodiments, the garment processing device further includes a first temperature sensor and a second temperature sensor. The first temperature sensor is disposed on the heat pipe side of the compressor and is used to detect the temperature of the heat pipe of the compressor. The second temperature sensor is disposed at the air inlet of the garment processing tub and is used to detect the temperature of the circulating air entering the tub. The temperature of the heat pipe of the compressor is used as the compressor temperature.

[0054] For example, the compressor heats the refrigerant through its heat pipes. When a refrigerant leak occurs, the amount of refrigerant in the compressor decreases, and the amount of high-temperature gas generated by the heat pipes through heating the refrigerant also decreases. This reduces the heat exchange between the high-temperature gas and the surrounding air via the condenser, thus weakening the heating effect of the compressor's heat pipes. After the air undergoes its first heating, it is reheated a second time by an auxiliary heating structure. Since the heating effect of the auxiliary heating structure remains unchanged, the temperature of the air after the second heating will be higher than the temperature of the compressor's heat pipes, resulting in the temperature of the circulating air entering the drum being higher than the temperature of the compressor's heat pipes. Therefore, by using a first temperature sensor to detect the temperature of the compressor's heat pipes and a second temperature sensor to detect the temperature of the circulating air entering the drum, a refrigerant leak can be confirmed when the temperature of the circulating air entering the drum is higher than that of the compressor's heat pipes.

[0055] In some embodiments, before determining that a refrigerant leak has occurred based on at least two operating state parameters meeting preset conditions, the method further includes: obtaining the operating time of the compressor; and determining to perform a judgment on the preset conditions for refrigerant leakage based on the operating time being equal to or greater than a preset time threshold.

[0056] For example, before performing refrigerant leak detection on a garment processing device, it is necessary to determine the compressor's operating time. If the garment processing device has just started the drying process, the compressor has just begun operating and its temperature has not yet reached the normal operating temperature. If a refrigerant leak detection is performed at this time, the compressor temperature may be lower than the temperature of the circulating air entering the drum, leading to a false alarm for refrigerant leaks. Therefore, a preset time threshold, such as 15 minutes, can be set. After the compressor has been operating for 15 minutes, it can be determined that the compressor's operating temperature has stabilized. At this point, the preset condition for refrigerant leak detection is performed to determine whether a refrigerant leak has occurred in the garment processing device. Thus, this disclosure avoids false alarms for refrigerant leaks caused by the compressor temperature of the garment processing device not yet reaching the normal operating temperature, improving the accuracy of refrigerant leak detection.

[0057] It should be noted that the preset duration threshold of 15 minutes is just an example. The specific preset duration threshold should be set according to the actual environment, and is not limited here.

[0058] In some embodiments, before determining a refrigerant leak, the method further includes: acquiring the ambient temperature before running the drying program; determining to execute a judgment on preset conditions for refrigerant leak based on the ambient temperature being equal to or greater than a first preset temperature threshold; or determining that there is no refrigerant leak based on the ambient temperature being less than the first preset temperature threshold and the compressor temperature being greater than a second preset temperature threshold; or determining to execute a judgment on preset conditions for refrigerant leak based on the compressor temperature being less than or equal to the second preset temperature threshold; wherein the second preset temperature threshold is greater than the first preset temperature threshold.

[0059] For example, if the working environment of the garment processing equipment is cold, even if there is no refrigerant leak, the low ambient temperature may prevent the drying temperature from reaching the normal operating temperature, thus preventing the compressor from reaching its normal operating temperature. Simultaneously, because the auxiliary heating structure can reheat the air, the temperature of the circulating air entering the drum may be higher than the compressor temperature. In this situation, performing a refrigerant leak detection could lead to a false alarm. Therefore, the garment processing equipment needs to detect the ambient temperature before running the drying program. The first preset temperature threshold could be, for example, -5℃, and the second preset temperature threshold could be, for example, 10℃. Before performing a refrigerant leak detection, the garment processing equipment first detects the ambient temperature. When the detected ambient temperature is equal to or greater than -5℃, it can be assumed that, under the condition of no refrigerant leak, the compressor can normally raise the temperature of the circulating air entering the drum to the normal operating temperature. At this point, the preset condition for refrigerant leak detection is determined, and the result is used to determine whether a refrigerant leak has occurred in the garment processing equipment. When the compressor temperature is detected to be less than or equal to 10°C, a judgment is made based on preset conditions for refrigerant leakage. This is achieved by comparing the temperature of the circulating air inlet drum with the compressor temperature to determine if a refrigerant leak has occurred in the garment handling equipment. Furthermore, a comparison can be made between the phase current and a phase current threshold to further determine if a refrigerant leak has occurred. This avoids misjudgments of refrigerant leakage due to errors in detecting a single parameter, thus improving detection accuracy. When the detected ambient temperature is less than -5°C and the compressor temperature is greater than 10°C, the garment handling equipment assumes that even without a refrigerant leak, the compressor cannot raise the temperature of the circulating air inlet drum to its normal operating temperature. Therefore, no refrigerant leak detection is performed, and the garment handling equipment is considered to be operating normally. Thus, this disclosure avoids misjudgments of refrigerant leakage in garment handling equipment under extremely cold conditions, improving the accuracy of refrigerant leak misjudgment.

[0060] It should be noted that the first preset temperature threshold of -5℃ and the second preset temperature threshold of 10℃ are just examples. The specific first and second preset temperature thresholds should be set according to the actual environmental conditions, and are not limited here.

[0061] Figure 2 This is a schematic diagram of a refrigerant leakage detection device for a garment processing apparatus provided in an embodiment of this disclosure. The garment processing apparatus also includes a garment processing tank and a compressor, such as... Figure 2As shown, the refrigerant leakage detection device for the garment processing equipment includes: a parameter acquisition module 210, used to acquire at least the compressor temperature and the circulating air inlet temperature during the operation of the garment processing equipment in the drying program; and a leakage determination module 220, used to determine refrigerant leakage based on the circulating air inlet temperature and the compressor temperature meeting preset conditions.

[0062] It is understood that the refrigerant leakage detection device for clothing processing equipment provided in this embodiment can implement the steps of any of the leakage detection methods provided in the above embodiments and has corresponding beneficial effects, which will not be elaborated here.

[0063] This disclosure also provides a computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement the steps of the refrigerant leakage detection method for any of the clothing handling devices provided in the above embodiments.

[0064] For example, the computer-readable storage medium may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may, for example, include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0065] Figure 3 This is a schematic diagram of a garment processing device provided in an embodiment of the present disclosure, as shown below. Figure 3 As shown, the garment processing device 300 includes a processor 301 and a memory 302.

[0066] For example, processor 301 may be a central processing unit (CPU) or other form of processing unit with data processing capabilities and / or instruction execution capabilities, and may control other components in garment processing device 300 to perform desired functions.

[0067] The memory 302 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 301 may execute the program instructions to implement the refrigerant leakage detection method and / or other desired functions of any of the clothing handling devices provided in the above embodiments. Various contents such as input signals, signal components, and noise components may also be stored in the computer-readable storage medium.

[0068] In one example, the garment handling device 300 may also include an input device 303 and an output device 304, which are interconnected via a bus system and / or other forms of connection mechanism (not shown).

[0069] Of course, for the sake of simplicity, Figure 3 Only some of the components of the garment handling apparatus 300 relevant to this disclosure are shown in this illustration; components such as buses, input / output interfaces, etc., are omitted. In addition, the garment handling apparatus 300 may include any other suitable components depending on the specific application.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0071] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for detecting refrigerant leakage in a garment handling device, characterized in that, The garment processing equipment includes a garment processing tank and a compressor; the refrigerant leakage detection method of the garment processing equipment includes: The minimum compressor temperature and circulating air inlet temperature of the garment processing equipment during the drying process are obtained. Based on the fact that the temperature of the circulating air entering the tank and the temperature of the compressor meet preset conditions, a refrigerant leak is determined.

2. The refrigerant leakage detection method for the clothing handling equipment according to claim 1, characterized in that, The preset conditions include that the temperature of the circulating air entering the barrel is greater than the temperature of the compressor.

3. The refrigerant leakage detection method for the clothing handling equipment according to claim 1, characterized in that, Before determining the refrigerant leak, the process also includes: Obtain the phase current of the garment processing equipment during the drying process; The preset condition also includes that the phase current is less than a preset phase current threshold.

4. The refrigerant leakage detection method for the clothing handling equipment according to claim 3, characterized in that, The garment processing equipment also includes a frequency converter; The phase current is detected based on the frequency converter.

5. The refrigerant leakage detection method for the garment handling equipment according to any one of claims 1-4, characterized in that, The garment processing equipment also includes a first temperature sensor and a second temperature sensor. The first temperature sensor is disposed on one side of the heat pipe of the compressor and is used to detect the temperature of the heat pipe of the compressor. The second temperature sensor is disposed at the air inlet of the garment processing drum and is used to detect the temperature of the circulating air entering the drum. The temperature of the compressor is defined as the temperature of the heat pipe of the compressor.

6. The refrigerant leakage detection method for the garment handling equipment according to any one of claims 1-4, characterized in that, Before determining the refrigerant leak, the process also includes: Obtain the compressor's operating time; Based on the working time being equal to or greater than a preset time threshold, a judgment is made to determine the execution of preset conditions for refrigerant leakage.

7. The refrigerant leakage detection method for the garment handling equipment according to any one of claims 1-4, characterized in that, Before determining the refrigerant leak, the process also includes: Obtain the ambient temperature before running the drying program; Based on the ambient temperature being equal to or greater than a first preset temperature threshold, a judgment is made to determine the preset conditions for refrigerant leakage. Alternatively, based on the fact that the ambient temperature is less than the first preset temperature threshold and the compressor temperature is greater than the second preset temperature threshold, it is determined that there is no refrigerant leakage; the second preset temperature threshold is greater than the first preset temperature threshold.

8. A refrigerant leakage detection device for clothing processing equipment, characterized in that, The garment processing equipment also includes a garment processing tank and a compressor; the refrigerant leakage detection device of the garment processing equipment includes: The parameter acquisition module is used to acquire at least the compressor temperature and the circulating air inlet temperature of the garment processing equipment during the drying process. The leakage determination module is used to determine refrigerant leakage based on the fact that the temperature of the circulating air inlet and the temperature of the compressor meet preset conditions.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, The computer program is executed by a processor to implement the steps of the refrigerant leakage detection method for the clothing handling equipment as described in any one of claims 1-7.

10. A garment processing device, characterized in that, Including memory and processor; The memory stores executable programs or instructions; The processor executes the program or instructions to implement the steps of the refrigerant leakage detection method for the clothing handling equipment as described in any one of claims 1-7.

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