WO2023234105A1 - Clothing treatment device, failure determination method, and program - Google Patents

Clothing treatment device, failure determination method, and program Download PDF

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Publication number
WO2023234105A1
WO2023234105A1 PCT/JP2023/018975 JP2023018975W WO2023234105A1 WO 2023234105 A1 WO2023234105 A1 WO 2023234105A1 JP 2023018975 W JP2023018975 W JP 2023018975W WO 2023234105 A1 WO2023234105 A1 WO 2023234105A1
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WIPO (PCT)
Prior art keywords
refrigerant
failure
section
tank
refrigerant circuit
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PCT/JP2023/018975
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French (fr)
Japanese (ja)
Inventor
信治 武田
和義 森谷
真佐男 野仲
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パナソニックＩｐマネジメント株式会社
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Publication of WO2023234105A1 publication Critical patent/WO2023234105A1/en

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/74—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers

Definitions

  • the present disclosure relates to a clothing processing device, a failure determination method, and a program.
  • clothing processing devices for example, washer/dryers
  • heat pump devices refrigerant circuits
  • Patent Document 1 refrigerant leakage is diagnosed by performing a test run with the operating frequency of the compressor, the rotation speed of the fan, and the opening degree of the expansion valve fixed at predetermined values and the wind direction plate fixed at a predetermined angle.
  • a device is disclosed.
  • An object of the present disclosure is to provide a clothing processing device, a failure determination method, and a program that can accurately determine the type of failure.
  • the clothing processing device includes: A tank into which clothes can be put, a refrigerant circuit section in which refrigerant circulates in the order of a compressor, a condenser, a pressure reducing section, and an evaporator; a circulation air passage section that circulates air between the tank and the refrigerant circuit section;
  • the air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank.
  • an instruction section capable of instructing execution of one
  • a failure determination unit that determines the type of failure based on temperature information of the refrigerant circuit unit when the second process is instructed; Equipped with.
  • the failure determination method is as follows: a tank into which clothes can be put; a refrigerant circuit section through which refrigerant circulates in the order of a compressor, a condenser, a decompression section, and an evaporator; and a circulating air path section through which air is circulated between the tank and the refrigerant circuit section.
  • a method for determining failure of a clothing processing device having the following steps: The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. instructing to execute the second process; When the second process is instructed, the type of failure is determined based on temperature information of the refrigerant circuit section.
  • the program related to this disclosure is a tank into which clothes can be put; a refrigerant circuit section through which refrigerant circulates in the order of a compressor, a condenser, a decompression section, and an evaporator; and a circulating air path section through which air is circulated between the tank and the refrigerant circuit section.
  • a program for a clothing processing device having: to the computer, The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. a process for instructing execution of the second process; When the second process is instructed, a process of determining the type of failure based on temperature information of the refrigerant circuit section; Execute.
  • the type of failure can be accurately determined.
  • FIG. 1 is a diagram illustrating a configuration example of a clothing processing device according to an embodiment of the present disclosure.
  • FIG. 2 is a block diagram showing a control system of the clothing processing device according to the present embodiment.
  • FIG. 2 is a diagram schematically showing an air circulation path section of the clothing processing apparatus according to the present embodiment. It is a figure showing an example of composition of a refrigerant circuit part.
  • FIG. 3 is a diagram showing a change in refrigerant temperature over time during normal operation.
  • FIG. 6 is a diagram showing a change in refrigerant temperature over time when refrigerant leakage occurs.
  • FIG. 6 is a diagram showing a change in refrigerant temperature over time when refrigerant clogging occurs.
  • 7 is a flowchart illustrating an operation example of failure determination control in a failure determination unit.
  • FIG. 1 is a diagram showing a clothing processing apparatus 1 according to an embodiment of the present disclosure.
  • FIG. 2 is a block diagram showing a control system of the clothing processing apparatus 1 according to the present embodiment.
  • the clothing processing device 1 is a device (for example, a washer/dryer) that has a function of determining the type of failure in the refrigerant circuit section 20 (heat pump device).
  • the clothing processing device 1 can determine the type of failure based on temperature information in the refrigerant circuit section 20.
  • a drum type is illustrated as the clothing processing apparatus 1, but devices other than the drum type may be used, such as a vertical type.
  • the clothing processing device 1 includes an outer tank 11, a tank 12, a circulation air path section 13, a blower section 14, an instruction section 15, a notification section 16, a weight detection section 17, a refrigerant circuit section 20, and a failure section. It has a determination section 30.
  • the outer tank 11 has a cylindrical shape and is provided inside the casing 1A of the clothing processing device 1. Inside the outer tank 11, a tank 12 is rotatably provided.
  • the tank 12 is configured in a cylindrical shape, and clothes can be placed therein.
  • the tank 12 is rotationally driven by a drive motor (not shown).
  • the circulating air path section 13 is a duct (air path) that circulates air between the tank 12 and the refrigerant circuit section 20.
  • the circulation air passage section 13 extends from the upper end of the tank 12 toward the rear of the tank 12, and then extends downward and is connected to the back of the tank 12.
  • the circulation air passage section 13 communicates with the tank 12 at the upper end and back of the tank 12. As shown in FIG. 3, the circulation air passage section 13 is arranged so that the air sucked from the upper end of the tank 12 by the blower section 14 returns to the back of the tank 12 via the refrigerant circuit section 20. It is configured. Note that, since damp clothes are put into the tank 12 for the purpose of drying, the air in the tank 12 is sucked from the upper end of the tank 12 while absorbing moisture from the clothes.
  • the air blower 14 is provided in the circulation air passage 13 and generates a flow of air from the upper end of the tank 12 back to the back of the tank 12 within the circulation air passage 13 (see the arrow in FIG. 3). ).
  • the instruction section 15 is, for example, a section through which the user gives operation instructions for the clothing processing apparatus 1.
  • the clothing processing device 1 is capable of performing a first process and a second process.
  • the first process is a drying process performed when drying the clothes in the tank 12.
  • the second process is a process when there is no clothing in the tank 12, and is a process in which the circulation process of at least the refrigerant circuit section 20 (compressor and decompression section described later) and the circulation air path section 13 is different from the first process. It is.
  • the process that is different from the first process is, for example, a process in which the operating load on the clothing processing apparatus 1 is relatively small, such as a process in which the air volume of the air blower 14 is smaller than in the first process.
  • the second process is performed, for example, when determining a failure of the clothing processing device 1.
  • the instruction unit 15 instructs the clothing processing device 1 to perform one of the air circulation processes in the circulation air path unit 13, including the first process and the second process, in response to a user's operation.
  • the instruction unit 15 may be capable of instructing processes other than the first process and the second process (for example, washing clothes, cleaning the inside of the tank 12, etc.).
  • the notification unit 16 is, for example, a display device, an audio output device, etc. of the clothing processing device 1, and notifies the user of information on the type of failure determined by the failure determination unit 30, which will be described later, and information on whether or not a failure determination is necessary. .
  • the weight detection unit 17 is a known sensor that detects the weight of clothing in the tank 12.
  • the weight detection unit 17 outputs information on the weight of the clothes in the tank 12 in the first process to the failure determination unit 30.
  • the refrigerant circuit section 20 is a heat pump device that converts the air passing through the circulation air path section 13 into dry, warm air and returns it into the tank 12. As shown in FIG. 4, the refrigerant circuit section 20 constitutes a circuit in which an evaporator 21, a compressor 22, a condenser 23, and a pressure reducing section 24 are sequentially connected to a refrigerant distribution pipe 25.
  • the refrigerant in the refrigerant distribution pipe 25 flows, thereby circulating the refrigerant in the order of the compressor 22, the condenser 23, the pressure reducing section 24, and the evaporator 21.
  • the refrigerant circuit section 20 is provided in the circulating air path section 13, and the air in the circulating air path section 13 passes through the evaporator 21 and the condenser 23 (see also FIG. 3), thereby exchanging heat. , the air becomes dry and warm.
  • the evaporator 21 is configured, for example, by arranging a plurality of heat transfer fins on the refrigerant distribution pipe 25, and is arranged at a position through which the air in the circulation air passage section 13 passes. As the air in the circulating air passage section 13 passes through the position of the evaporator 21, the heat of the air in the circulating air passage section 13 is absorbed by the evaporator 21. As a result, the air passing through the circulation air passage section 13 is cooled and dehumidified.
  • the compressor 22 is a compressor that compresses the refrigerant that has passed through the evaporator 21.
  • the condenser 23 is configured, for example, by arranging a plurality of heat transfer fins on a refrigerant distribution pipe 25, and is located at a position in the circulation air passage section 13 through which air passes after passing through the evaporator 21. It is located in The condenser 23 radiates the heat of the refrigerant discharged from the compressor 22. Thereby, the air that has been cooled and dehumidified by passing through the evaporator 21 is heated by passing through the condenser 23 . As a result, the air becomes dry, warm air and is returned to the tank 12.
  • the pressure reducing section 24 is, for example, a capillary tube for reducing the pressure of the refrigerant.
  • the pressure reducing unit 24 reduces the pressure of the refrigerant that has passed through the condenser 23 and flows into the evaporator 21 again.
  • Such operations of the evaporator 21, compressor 22, condenser 23, and pressure reducing section 24 are repeatedly performed during the operation of the refrigerant circuit section 20.
  • the refrigerant distribution pipe 25 is provided with a first temperature detection section 26 and a second temperature detection section 27.
  • the first temperature detection section 26 and the second temperature detection section 27 are known temperature sensors that detect the temperature of the refrigerant circuit section 20.
  • the first temperature detection unit 26 is provided at a position corresponding to the refrigerant distribution pipe 25 between the compressor 22 and the condenser 23, and detects the temperature of the refrigerant discharged from the compressor 22.
  • the second temperature detection section 27 is provided at a position corresponding to the refrigerant distribution pipe 25 between the condenser 23 and the pressure reduction section 24, and detects the temperature of the refrigerant discharged from the condenser 23.
  • the failure determination unit 30 is, for example, a control device that controls the operation of the clothing processing device 1, and includes a CPU 31, a ROM 32, a RAM 33, and an input/output circuit.
  • the failure determining unit 30 determines the type of failure of the clothing processing device 1 based on a preset program. Specifically, when the second process is instructed by the instruction unit 15, the failure determination unit 30 determines the type of failure in the clothing processing device 1 based on the temperature information of the refrigerant circuit unit 20.
  • Examples of the types of failures in the refrigerant circuit section 20 in the clothing processing apparatus 1 include refrigerant leakage. It has been confirmed that the temperature of the region between two elements in the refrigerant circuit section 20 increases as time passes during normal operation, for example, as shown in FIG. 5A.
  • L1 shown in FIG. 5A indicates a temperature change of the refrigerant discharged from the compressor 22, and is based on the detection result of the first temperature detection section 26.
  • L2 indicates a temperature change of the refrigerant discharged from the condenser 23, and is based on the detection result of the second temperature detection section 27.
  • the amount of change in temperature of L1 may be larger than that of L2, which is the temperature after being discharged from the condenser 23 and discharged from the compressor 22. Can be confirmed.
  • L11 shown in FIG. 5B indicates a temperature change of the refrigerant discharged from the compressor 22, and is based on the detection result of the first temperature detection section 26.
  • L21 indicates a temperature change of the refrigerant discharged from the condenser 23, and is based on the detection result of the second temperature detection section 27.
  • the failure determination unit 30 acquires the temperature information of the refrigerant discharged from the compressor 22 in the refrigerant circuit unit 20 during the operation period by the second process from the first temperature detection unit 26, and obtains the temperature information of the refrigerant.
  • the type of failure is determined based on the rate of change.
  • the failure determination unit 30 determines that the type of failure is a refrigerant leak when the rate of change of the refrigerant temperature information is less than the first threshold.
  • the first threshold value corresponds to a rate of change in temperature of the refrigerant discharged from the compressor 22 during normal operation, and can be set as appropriate based on experiments and the like.
  • the failure determination unit 30 determines from the second temperature detection unit 27 that the temperature of the refrigerant discharged from the condenser 23 in the refrigerant circuit unit 20 during the operation period by the second process is outside the predetermined temperature range. If so, it is determined that the type of failure is a refrigerant leak from the refrigerant circuit section 20.
  • the predetermined temperature range is, for example, the temperature range reached by the temperature discharged from the condenser 23 during a predetermined time during normal operation, and can be set as appropriate based on experiments and the like.
  • the types of failures in the refrigerant circuit section 20 in the clothing processing apparatus 1 include, for example, refrigerant clogging in the decompression section 24.
  • L12 shown in FIG. 5C indicates a temperature change of the refrigerant discharged from the compressor 22, and is based on the detection result of the first temperature detection unit 26.
  • L22 indicates the temperature change of the refrigerant discharged from the condenser 23, and is based on the detection result of the second temperature detection section 27.
  • the temperature of L12 shown in FIG. 5C increases as time passes, and the slope (rate of change) becomes significantly larger than L1 shown in FIG. 5A.
  • the failure determination unit 30 acquires the temperature information of the refrigerant discharged from the compressor 22 in the refrigerant circuit unit 20 during the operation period by the second process from the first temperature detection unit 26, and changes the temperature information. Based on the rate, determine the type of failure. If the rate of change in the temperature information exceeds the second threshold, the failure determining unit 30 determines that the type of failure is refrigerant clogging in the pressure reducing unit 24 .
  • refrigerant clogging in the depressurizing section 24 is caused by dust or the like in the refrigerant distribution pipe 25, but by continuing to operate the refrigerant circuit section 20, the refrigerant tries to flow in the refrigerant distribution pipe 25, so the refrigerant clogging occurs. may be temporarily resolved. In this case, since the rate of change of temperature information does not exceed the second threshold during the operation period due to the second process, it may not be possible to determine a failure due to refrigerant clogging, even though there is a high possibility that refrigerant clogging will occur. .
  • the failure determination unit 30 determines that the type of failure is depressurization. It may be determined that the refrigerant in the section 24 is clogged.
  • the history information is information indicating the number of times the rate of change in temperature between the compressor 22 and the condenser 23 exceeds the second threshold, and is stored in a storage device etc. provided in the clothing processing device 1. Also good.
  • the failure determination unit 30 determines whether the rate of change in temperature exceeds the second threshold. If the number of times of failure is equal to or greater than a predetermined number of times, it is determined that the type of failure is refrigerant clogging in the pressure reducing section 24.
  • the predetermined number of times may be set to an appropriate value, such as once or twice.
  • the type of failure is refrigerant clogging in the pressure reducing section 24 by referring to the history information.
  • the failure determination unit 30 determines that the type of failure is in the pressure reducing unit 24. It may be determined that the refrigerant is clogged.
  • the failure determination unit 30 may determine only whether there is a refrigerant leak in the second process, and determine that the type of failure is refrigerant clogging regardless of the result of the second process. .
  • the determination result of the failure determination unit 30 is notified to the user by the notification unit 16 described above.
  • the notification unit 16 notifies that a refrigerant leak has occurred if only a refrigerant leak has occurred, notifies that a refrigerant block has occurred if only a refrigerant block has occurred, and notifies that a refrigerant block has occurred if both a refrigerant leak and a refrigerant block have occurred. If this happens, you will be notified that both a refrigerant leak and a refrigerant blockage have occurred.
  • the notification method by the notification unit 16 may be to display text information etc. on the display device of the clothing processing device 1, to output audio information etc. using the audio output device of the clothing processing device 1, etc. Further, the notification unit 16 may notify a device other than the clothing processing device 1 (for example, a user's mobile terminal, a personal computer, a server device of a service center, etc.) via a communication network.
  • a device other than the clothing processing device 1 for example, a user's mobile terminal, a personal computer, a server device of a service center, etc.
  • failure determining section 30 may determine whether or not the determination by the failure determining section 30 is necessary.
  • the failure determination unit 30 corresponds to the “necessity determination unit” of the present disclosure.
  • the failure determination unit 30 makes the determination based on the rate of change of temperature information and the amount of clothing input during the operation period of the first process. Determine whether or not it is necessary.
  • the failure determination unit 30 acquires the rate of change of temperature information of the refrigerant circuit unit 20 from the first temperature detection unit 26, and acquires information on the amount of clothing input from the weight detection unit 17. .
  • the failure determination unit 30 refers to, for example, a table prepared in advance that shows the relationship between the rate of change of temperature information and the amount of clothing input, and determines the rate of change of temperature information corresponding to the acquired amount of input information. , and the rate of change of the temperature information acquired from the first temperature detection unit 26, and if the difference is a predetermined value (which can be set arbitrarily), it is determined that a determination by the failure determination unit 30 is necessary.
  • the notification unit 16 When the failure determining unit 30 determines that the determination by the failure determining unit 30 is necessary, the notification unit 16 notifies the user that the determination by the failure determining unit 30 is necessary. For example, the notification unit 16 notifies the user to perform the second process.
  • the user can quickly grasp the timing to operate the clothing processing device 1 in the second process.
  • FIG. 6 is a flowchart showing an example of the operation of failure determination control in the failure determination unit 30. The process in FIG. 6 is executed as appropriate, for example, when an instruction to execute the second process operation is received.
  • the failure determination unit 30 operates the clothing processing device 1 through the second process (step S101). Next, the failure determination unit 30 determines whether the temperature change rate of the first temperature detection unit 26 is less than the first threshold (step S102).
  • the failure determination unit 30 determines whether the temperature of the second temperature detection unit 27 is within a predetermined temperature range. (Step S103).
  • step S103 if the temperature is within the predetermined temperature range (step S103, YES), the process transitions to step S106. On the other hand, if the temperature is outside the predetermined temperature range (step S103, NO), the process transitions to step S104.
  • step S102 if the temperature change rate is less than the first threshold (step S102, YES), the failure determination unit 30 determines that the type of failure is a refrigerant leak (step S104). Then, the failure determination unit 30 notifies that the type of failure is a refrigerant leak (step S105).
  • the failure determination unit 30 determines whether the temperature change rate of the first temperature detection unit 26 exceeds the second threshold (step S106). As a result of the determination, if the temperature change rate does not exceed the second threshold (step S106, NO), this control ends.
  • step S106 determines that the type of failure is refrigerant clogging. Then, the failure determination unit 30 notifies that the type of failure is refrigerant clogging (step S108). After step S108, this control ends.
  • the type of failure of the clothing processing device 1 is determined based on the temperature information of the refrigerant circuit section 20. Specifically, the failure determination unit 30 determines whether the type of failure is in the refrigerant circuit based on the rate of change of temperature information of the refrigerant discharged from the compressor 22 or the range of temperature information of the refrigerant discharged from the condenser 23. It is determined that there is a refrigerant leak in the section 20. Further, the failure determining unit 30 determines that the type of failure is refrigerant clogging in the pressure reduction unit 24 of the refrigerant circuit unit 20 based on the rate of change in temperature information discharged from the compressor 22.
  • the type of failure in the clothing processing device 1 can be accurately determined.
  • the notification unit 16 notifies the determination result of the failure determination unit 30, the user can accurately and quickly understand the location of the failure. As a result, necessary parts can be easily prepared when repairing the clothing processing device 1.
  • the determination is made as follows. A second process can be performed based on the results. Therefore, the second process can be performed only when necessary.
  • refrigerant leak or refrigerant clogging is determined as the type of failure, but the present disclosure is not limited to this. For example, based on the temperature information of the refrigerant circuit section 20, it is determined whether there is a refrigerant leak or refrigerant clogging, and if there is no refrigerant leak or refrigerant clogging, other malfunction information is acquired and the malfunction is detected. You can also judge the type.
  • the failure determination section 30 has the function of a necessity determination section, but the present disclosure is not limited to this, and the necessity determination section is provided separately from the failure determination section. Also good.
  • the second process is a process in which at least the circulation process of the compressor 22, the pressure reducing part 24, and the circulation air passage part 13 is different from the first process, but the present disclosure is not limited to this.
  • the second process may be a process when there is no clothing in the tank, and may be the same process as the first process.
  • the second temperature detection section detects the temperature of the portion between the condenser and the pressure reduction section in the refrigerant distribution pipe, but the present disclosure is not limited thereto. It is also possible to detect the temperature of the region between the evaporator and the evaporator, or the temperature of the region between the evaporator and the compressor.
  • the clothing processing device of the present disclosure is useful as a clothing processing device, a failure determination method, and a program that can accurately determine the type of failure.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

This clothing treatment device comprises: a tank; a coolant circuit unit; a circulation air passage unit; an indication unit that is capable of indicating that an air circulation process in the circulation air passage unit is to be executed, including a first process for carrying out a process to dry clothes inside the tank and a second process that applies when no clothes are inside the tank; and a failure determination unit that determines a type of failure on the basis of temperature information pertaining to the coolant circuit unit when the second process is indicated.

Description

衣類処理装置、故障判断方法およびプログラムGarment processing equipment, failure determination method and program
　本開示は、衣類処理装置、故障判断方法およびプログラムに関する。 The present disclosure relates to a clothing processing device, a failure determination method, and a program.
　従来、ヒートポンプ装置（冷媒回路）を用いた衣類処理装置（例えば、洗濯乾燥機）が知られている。ヒートポンプ装置内に封入された冷媒の循環量が減少すると衣類の乾燥不良が発生したり、衣類処理装置が突然使用できなくなる可能性があるので、ユーザの日常生活にも支障をきたすおそれがある。 Conventionally, clothing processing devices (for example, washer/dryers) using heat pump devices (refrigerant circuits) are known. If the amount of circulating refrigerant sealed in the heat pump device decreases, the clothes may not dry properly or the clothes processing device may suddenly become unusable, which may interfere with the user's daily life.
　また、ヒートポンプ装置内の冷媒循環量が不足すると、冷媒の循環能力が低下する他、ヒートポンプ装置の圧縮機に過大な負荷がかかるので、装置としての寿命を縮めることになる。冷媒循環量の減少の原因としては、例えば、冷媒漏れ、減圧部での冷媒詰まりが挙げられる。このような衣類処理装置の故障は、定期的な評価（診断）によって検出することが望ましい。 Furthermore, if the amount of refrigerant circulated within the heat pump device is insufficient, not only will the refrigerant circulation ability decrease, but also an excessive load will be placed on the compressor of the heat pump device, which will shorten the life of the device. Causes of the decrease in the amount of refrigerant circulation include, for example, refrigerant leakage and refrigerant clogging in the pressure reduction section. It is desirable to detect such malfunctions of clothing processing devices through periodic evaluation (diagnosis).
　例えば、特許文献１には、圧縮機の運転周波数、ファンの回転数、膨張弁の開度を所定値に固定し、風向板を所定角度に固定して試験運転することで、冷媒漏れを診断する装置が開示されている。 For example, in Patent Document 1, refrigerant leakage is diagnosed by performing a test run with the operating frequency of the compressor, the rotation speed of the fan, and the opening degree of the expansion valve fixed at predetermined values and the wind direction plate fixed at a predetermined angle. A device is disclosed.
特開平２－２４７４４２号公報Japanese Patent Application Publication No. 2-247442
　しかしながら、ヒートポンプ装置の冷媒循環量の不足は、減圧部における冷媒の詰まりによっても発生する。特許文献１に記載の方法では、冷媒漏れの診断のみであるので、故障の種類を正確に判断することが困難であった。 However, a lack of refrigerant circulation in the heat pump device also occurs due to refrigerant clogging in the pressure reduction section. Since the method described in Patent Document 1 only diagnoses refrigerant leakage, it is difficult to accurately determine the type of failure.
　本開示の目的は、故障の種類を正確に判断することが可能な衣類処理装置、故障判断方法およびプログラムを提供することである。 An object of the present disclosure is to provide a clothing processing device, a failure determination method, and a program that can accurately determine the type of failure.
　本開示に係る衣類処理装置は、
　衣類を投入可能な槽と、
　圧縮機、凝縮器、減圧部および蒸発器の順に冷媒が循環する冷媒回路部と、
　前記槽と前記冷媒回路部との間で空気を循環させる循環風路部と、
　前記槽内の前記衣類の乾燥処理を行う第１処理と、前記衣類が前記槽内にない場合の処理である第２処理とを含む、前記循環風路部における前記空気の循環処理のうちの１つを実行指示可能な指示部と、
　前記第２処理が指示された場合、前記冷媒回路部の温度情報に基づいて、故障の種類を判断する故障判断部と、
　を備える。 The clothing processing device according to the present disclosure includes:
A tank into which clothes can be put,
a refrigerant circuit section in which refrigerant circulates in the order of a compressor, a condenser, a pressure reducing section, and an evaporator;
a circulation air passage section that circulates air between the tank and the refrigerant circuit section;
The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. an instruction section capable of instructing execution of one;
a failure determination unit that determines the type of failure based on temperature information of the refrigerant circuit unit when the second process is instructed;
Equipped with.
　本開示に係る故障判断方法は、
　衣類を投入可能な槽と、圧縮機、凝縮器、減圧部および蒸発器の順に冷媒が循環する冷媒回路部と、前記槽と前記冷媒回路部との間で空気を循環させる循環風路部とを有する衣類処理装置の故障判断方法であって、
　前記槽内の前記衣類の乾燥処理を行う第１処理と、前記衣類が前記槽内にない場合の処理である第２処理とを含む、前記循環風路部における前記空気の循環処理のうち、前記第２処理を実行指示し、
　前記第２処理が指示された場合、前記冷媒回路部の温度情報に基づいて、故障の種類を判断する。 The failure determination method according to this disclosure is as follows:
a tank into which clothes can be put; a refrigerant circuit section through which refrigerant circulates in the order of a compressor, a condenser, a decompression section, and an evaporator; and a circulating air path section through which air is circulated between the tank and the refrigerant circuit section. A method for determining failure of a clothing processing device having the following steps:
The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. instructing to execute the second process;
When the second process is instructed, the type of failure is determined based on temperature information of the refrigerant circuit section.
　本開示に係るプログラムは、
　衣類を投入可能な槽と、圧縮機、凝縮器、減圧部および蒸発器の順に冷媒が循環する冷媒回路部と、前記槽と前記冷媒回路部との間で空気を循環させる循環風路部とを有する衣類処理装置のプログラムであって、
　コンピュータに、
　前記槽内の前記衣類の乾燥処理を行う第１処理と、前記衣類が前記槽内にない場合の処理である第２処理とを含む、前記循環風路部における前記空気の循環処理のうち、前記第２処理を実行指示する処理と、
　前記第２処理が指示された場合、前記冷媒回路部の温度情報に基づいて、故障の種類を判断する処理と、
　を実行させる。 The program related to this disclosure is
a tank into which clothes can be put; a refrigerant circuit section through which refrigerant circulates in the order of a compressor, a condenser, a decompression section, and an evaporator; and a circulating air path section through which air is circulated between the tank and the refrigerant circuit section. A program for a clothing processing device having:
to the computer,
The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. a process for instructing execution of the second process;
When the second process is instructed, a process of determining the type of failure based on temperature information of the refrigerant circuit section;
Execute.
　本開示によれば、故障の種類を正確に判断することができる。 According to the present disclosure, the type of failure can be accurately determined.
本開示の実施の形態に係る衣類処理装置の構成例を示す図である。1 is a diagram illustrating a configuration example of a clothing processing device according to an embodiment of the present disclosure. 本実施の形態に係る衣類処理装置の制御系を示すブロック図である。FIG. 2 is a block diagram showing a control system of the clothing processing device according to the present embodiment. 本実施の形態に係る衣類処理装置の空気の循環経路部を模式的に示した図である。FIG. 2 is a diagram schematically showing an air circulation path section of the clothing processing apparatus according to the present embodiment. 冷媒回路部の構成例を示す図である。It is a figure showing an example of composition of a refrigerant circuit part. 正常動作時における冷媒温度の時間変化を示す図である。FIG. 3 is a diagram showing a change in refrigerant temperature over time during normal operation. 冷媒漏れが発生した場合の冷媒温度の時間変化を示す図である。FIG. 6 is a diagram showing a change in refrigerant temperature over time when refrigerant leakage occurs. 冷媒詰まりが発生した場合の冷媒温度の時間変化を示す図である。FIG. 6 is a diagram showing a change in refrigerant temperature over time when refrigerant clogging occurs. 故障判断部における故障判断制御の動作例を示すフローチャートである。7 is a flowchart illustrating an operation example of failure determination control in a failure determination unit.
（実施の形態）
　以下、本開示の実施の形態を図面に基づいて詳細に説明する。図１は、本開示の実施の形態に係る衣類処理装置１を示す図である。図２は、本実施の形態に係る衣類処理装置１の制御系を示すブロック図である。 (Embodiment)
Hereinafter, embodiments of the present disclosure will be described in detail based on the drawings. FIG. 1 is a diagram showing a clothing processing apparatus 1 according to an embodiment of the present disclosure. FIG. 2 is a block diagram showing a control system of the clothing processing apparatus 1 according to the present embodiment.
　図１および図２に示すように、衣類処理装置１は、冷媒回路部２０（ヒートポンプ装置）の故障の種類を判断可能な機能を有する装置（例えば、洗濯乾燥機）である。衣類処理装置１は、冷媒回路部２０における温度情報に基づいて故障の種類を判断可能である。なお、図１では、衣類処理装置１として、ドラム式のものを例示しているが、縦型のもの等、ドラム式以外のものであっても良い。 As shown in FIGS. 1 and 2, the clothing processing device 1 is a device (for example, a washer/dryer) that has a function of determining the type of failure in the refrigerant circuit section 20 (heat pump device). The clothing processing device 1 can determine the type of failure based on temperature information in the refrigerant circuit section 20. In addition, in FIG. 1, a drum type is illustrated as the clothing processing apparatus 1, but devices other than the drum type may be used, such as a vertical type.
　衣類処理装置１は、外槽１１と、槽１２と、循環風路部１３と、送風部１４と、指示部１５と、通知部１６と、重量検出部１７と、冷媒回路部２０と、故障判断部３０とを有する。 The clothing processing device 1 includes an outer tank 11, a tank 12, a circulation air path section 13, a blower section 14, an instruction section 15, a notification section 16, a weight detection section 17, a refrigerant circuit section 20, and a failure section. It has a determination section 30.
　外槽１１は、円筒状に構成されており、衣類処理装置１の筐体１Ａの内部に設けられている。外槽１１の内部には、槽１２が回転可能に設けられている。 The outer tank 11 has a cylindrical shape and is provided inside the casing 1A of the clothing processing device 1. Inside the outer tank 11, a tank 12 is rotatably provided.
　槽１２は、円筒状に構成されており、衣類を投入可能である。槽１２は、駆動モータ（不図示）によって回転駆動される。 The tank 12 is configured in a cylindrical shape, and clothes can be placed therein. The tank 12 is rotationally driven by a drive motor (not shown).
　循環風路部１３は、槽１２と冷媒回路部２０との間で空気の循環をさせるダクト（風路）である。例えば、循環風路部１３は、槽１２の上端部から、槽１２の後方に向けて延びた後、下方に向けて延びて、槽１２の背部に接続されている。 The circulating air path section 13 is a duct (air path) that circulates air between the tank 12 and the refrigerant circuit section 20. For example, the circulation air passage section 13 extends from the upper end of the tank 12 toward the rear of the tank 12, and then extends downward and is connected to the back of the tank 12.
　循環風路部１３は、槽１２の上端部および背部において、槽１２と連通している。図３に示すように、循環風路部１３は、送風部１４により、槽１２の上端部から吸引された空気が、冷媒回路部２０を経由して、再び、槽１２の背部に戻るように構成されている。なお、槽１２には乾燥させる目的で湿った衣類が投入されることから、槽１２内の空気は、衣類から水分を吸収した状態で槽１２の上端部から吸引される。 The circulation air passage section 13 communicates with the tank 12 at the upper end and back of the tank 12. As shown in FIG. 3, the circulation air passage section 13 is arranged so that the air sucked from the upper end of the tank 12 by the blower section 14 returns to the back of the tank 12 via the refrigerant circuit section 20. It is configured. Note that, since damp clothes are put into the tank 12 for the purpose of drying, the air in the tank 12 is sucked from the upper end of the tank 12 while absorbing moisture from the clothes.
　送風部１４は、循環風路部１３に設けられており、循環風路部１３内において、槽１２の上端部から槽１２の背部に戻るような空気の流れを発生させる（図３の矢印参照）。 The air blower 14 is provided in the circulation air passage 13 and generates a flow of air from the upper end of the tank 12 back to the back of the tank 12 within the circulation air passage 13 (see the arrow in FIG. 3). ).
　図２に示すように、指示部１５は、例えば、ユーザが衣類処理装置１の操作指示を行う部分である。衣類処理装置１では、第１処理および第２処理を行うことが可能である。第１処理は、槽１２内の衣類の乾燥を行う際に行われる乾燥処理である。 As shown in FIG. 2, the instruction section 15 is, for example, a section through which the user gives operation instructions for the clothing processing apparatus 1. The clothing processing device 1 is capable of performing a first process and a second process. The first process is a drying process performed when drying the clothes in the tank 12.
　第２処理は、衣類が槽１２内にない場合の処理であり、少なくとも冷媒回路部２０（後述する圧縮機および減圧部）および循環風路部１３の循環処理を第１処理とは異ならせる処理である。第１処理とは異ならせる処理とは、例えば、第１処理よりも送風部１４の風量が少ないような、衣類処理装置１の動作負荷が比較的小さくなるような処理である。第２処理は、例えば、衣類処理装置１の故障の判断を行う際に行われる。 The second process is a process when there is no clothing in the tank 12, and is a process in which the circulation process of at least the refrigerant circuit section 20 (compressor and decompression section described later) and the circulation air path section 13 is different from the first process. It is. The process that is different from the first process is, for example, a process in which the operating load on the clothing processing apparatus 1 is relatively small, such as a process in which the air volume of the air blower 14 is smaller than in the first process. The second process is performed, for example, when determining a failure of the clothing processing device 1.
　指示部１５は、ユーザの操作により、第１処理および第２処理を含む、循環風路部１３における空気の循環処理のうちの１つを実行するように、衣類処理装置１に動作指示を行う。また、指示部１５は、第１処理および第２処理以外の処理（例えば、衣類の洗濯処理、槽１２内の清掃処理等）を指示可能であっても良い。 The instruction unit 15 instructs the clothing processing device 1 to perform one of the air circulation processes in the circulation air path unit 13, including the first process and the second process, in response to a user's operation. . Further, the instruction unit 15 may be capable of instructing processes other than the first process and the second process (for example, washing clothes, cleaning the inside of the tank 12, etc.).
　通知部１６は、例えば、衣類処理装置１の表示装置、音声出力装置等であり、後述する故障判断部３０により判断された故障の種類の情報、故障判断の要否の情報をユーザに通知する。 The notification unit 16 is, for example, a display device, an audio output device, etc. of the clothing processing device 1, and notifies the user of information on the type of failure determined by the failure determination unit 30, which will be described later, and information on whether or not a failure determination is necessary. .
　重量検出部１７は、槽１２内の衣類の重量を検出する公知のセンサである。重量検出部１７は、第１処理における、槽１２内の衣類の重量の情報を、故障判断部３０に出力する。 The weight detection unit 17 is a known sensor that detects the weight of clothing in the tank 12. The weight detection unit 17 outputs information on the weight of the clothes in the tank 12 in the first process to the failure determination unit 30.
　冷媒回路部２０は、循環風路部１３を通る空気を乾いた暖かい空気にして槽１２内に戻すためのヒートポンプ装置である。図４に示すように、冷媒回路部２０は、蒸発器２１、圧縮機２２、凝縮器２３および減圧部２４が順次、冷媒流通パイプ２５に接続された回路を構成している。 The refrigerant circuit section 20 is a heat pump device that converts the air passing through the circulation air path section 13 into dry, warm air and returns it into the tank 12. As shown in FIG. 4, the refrigerant circuit section 20 constitutes a circuit in which an evaporator 21, a compressor 22, a condenser 23, and a pressure reducing section 24 are sequentially connected to a refrigerant distribution pipe 25.
　冷媒回路部２０では、冷媒流通パイプ２５内の冷媒が流れることにより、冷媒が圧縮機２２、凝縮器２３、減圧部２４、蒸発器２１の順に循環する。冷媒回路部２０は、循環風路部１３に設けられており、蒸発器２１と凝縮器２３とを循環風路部１３の空気が通過することで（図３も参照）、熱交換がされて、当該空気が、乾いた暖かい空気となる。 In the refrigerant circuit section 20, the refrigerant in the refrigerant distribution pipe 25 flows, thereby circulating the refrigerant in the order of the compressor 22, the condenser 23, the pressure reducing section 24, and the evaporator 21. The refrigerant circuit section 20 is provided in the circulating air path section 13, and the air in the circulating air path section 13 passes through the evaporator 21 and the condenser 23 (see also FIG. 3), thereby exchanging heat. , the air becomes dry and warm.
　蒸発器２１は、例えば、冷媒流通パイプ２５に複数の伝熱フィンを配設することにより構成されており、循環風路部１３の空気が通過する位置に配置されている。循環風路部１３の空気が蒸発器２１の位置を通過することで、循環風路部１３の空気の熱が蒸発器２１に吸収される。これにより、循環風路部１３を通る空気が冷却されて除湿される。 The evaporator 21 is configured, for example, by arranging a plurality of heat transfer fins on the refrigerant distribution pipe 25, and is arranged at a position through which the air in the circulation air passage section 13 passes. As the air in the circulating air passage section 13 passes through the position of the evaporator 21, the heat of the air in the circulating air passage section 13 is absorbed by the evaporator 21. As a result, the air passing through the circulation air passage section 13 is cooled and dehumidified.
　圧縮機２２は、蒸発器２１を通過した冷媒を圧縮するコンプレッサーである。 The compressor 22 is a compressor that compresses the refrigerant that has passed through the evaporator 21.
　凝縮器２３は、例えば、冷媒流通パイプ２５に複数の伝熱フィンを配設することにより構成されており、循環風路部１３における、蒸発器２１の箇所を通過した後の空気が通過する位置に配置されている。凝縮器２３は、圧縮機２２から吐出された冷媒の熱を放熱する。これにより、蒸発器２１を経由することにより冷却されて除湿された空気は、凝縮器２３の位置を通過することで加熱される。その結果、当該空気が、乾いた暖かい空気となり、槽１２に戻される。 The condenser 23 is configured, for example, by arranging a plurality of heat transfer fins on a refrigerant distribution pipe 25, and is located at a position in the circulation air passage section 13 through which air passes after passing through the evaporator 21. It is located in The condenser 23 radiates the heat of the refrigerant discharged from the compressor 22. Thereby, the air that has been cooled and dehumidified by passing through the evaporator 21 is heated by passing through the condenser 23 . As a result, the air becomes dry, warm air and is returned to the tank 12.
　減圧部２４は、冷媒の圧力を減圧するための、例えば毛細管（キャピラリー管）である。減圧部２４により、凝縮器２３を通過した冷媒が減圧されて、再び、蒸発器２１に流れる。 The pressure reducing section 24 is, for example, a capillary tube for reducing the pressure of the refrigerant. The pressure reducing unit 24 reduces the pressure of the refrigerant that has passed through the condenser 23 and flows into the evaporator 21 again.
　このような蒸発器２１、圧縮機２２、凝縮器２３および減圧部２４の動作が、冷媒回路部２０の動作中に繰り返し行われる。 Such operations of the evaporator 21, compressor 22, condenser 23, and pressure reducing section 24 are repeatedly performed during the operation of the refrigerant circuit section 20.
　また、冷媒流通パイプ２５には、第１温度検出部２６および第２温度検出部２７が設けられている。 Further, the refrigerant distribution pipe 25 is provided with a first temperature detection section 26 and a second temperature detection section 27.
　第１温度検出部２６および第２温度検出部２７は、冷媒回路部２０の温度を検出する公知の温度センサである。 The first temperature detection section 26 and the second temperature detection section 27 are known temperature sensors that detect the temperature of the refrigerant circuit section 20.
　第１温度検出部２６は、圧縮機２２と凝縮器２３との間の冷媒流通パイプ２５に対応する位置に設けられ、圧縮機２２から吐出される冷媒の温度を検出する。 The first temperature detection unit 26 is provided at a position corresponding to the refrigerant distribution pipe 25 between the compressor 22 and the condenser 23, and detects the temperature of the refrigerant discharged from the compressor 22.
　第２温度検出部２７は、凝縮器２３と減圧部２４との間の冷媒流通パイプ２５に対応する位置に設けられ、凝縮器２３から吐出される冷媒の温度を検出する。 The second temperature detection section 27 is provided at a position corresponding to the refrigerant distribution pipe 25 between the condenser 23 and the pressure reduction section 24, and detects the temperature of the refrigerant discharged from the condenser 23.
　図２に示すように、故障判断部３０は、例えば、衣類処理装置１の動作制御を行う制御装置であり、ＣＰＵ３１、ＲＯＭ３２、ＲＡＭ３３および入出力回路を備えている。故障判断部３０は、予め設定されたプログラムに基づいて、衣類処理装置１の故障の種類を判断する。具体的には、故障判断部３０は、指示部１５により第２処理が指示された場合、冷媒回路部２０の温度情報に基づいて、衣類処理装置１の故障の種類を判断する。 As shown in FIG. 2, the failure determination unit 30 is, for example, a control device that controls the operation of the clothing processing device 1, and includes a CPU 31, a ROM 32, a RAM 33, and an input/output circuit. The failure determining unit 30 determines the type of failure of the clothing processing device 1 based on a preset program. Specifically, when the second process is instructed by the instruction unit 15, the failure determination unit 30 determines the type of failure in the clothing processing device 1 based on the temperature information of the refrigerant circuit unit 20.
　衣類処理装置１における冷媒回路部２０の故障の種類には、例えば冷媒漏れが挙げられる。冷媒回路部２０における２つの要素の間の部位の温度は、正常動作中において例えば図５Ａに示すように、時間が経過するにつれ上昇することが確認されている。 Examples of the types of failures in the refrigerant circuit section 20 in the clothing processing apparatus 1 include refrigerant leakage. It has been confirmed that the temperature of the region between two elements in the refrigerant circuit section 20 increases as time passes during normal operation, for example, as shown in FIG. 5A.
　図５Ａに示すＬ１は、圧縮機２２から吐出される冷媒の温度変化を示しており、第１温度検出部２６の検出結果に基づく。Ｌ２は、凝縮器２３から吐出される冷媒の温度変化を示しており、第２温度検出部２７の検出結果に基づく。 L1 shown in FIG. 5A indicates a temperature change of the refrigerant discharged from the compressor 22, and is based on the detection result of the first temperature detection section 26. L2 indicates a temperature change of the refrigerant discharged from the condenser 23, and is based on the detection result of the second temperature detection section 27.
　Ｌ１は、冷媒が圧縮機２２によって圧縮されることに起因して、凝縮器２３から吐出され圧縮機２２から吐出された後の温度の温度であるＬ２よりも温度の変化量が大きくなることが確認できる。 Due to the fact that the refrigerant is compressed by the compressor 22, the amount of change in temperature of L1 may be larger than that of L2, which is the temperature after being discharged from the condenser 23 and discharged from the compressor 22. Can be confirmed.
　ここで、冷媒漏れが発生すると、図５Ｂに示すように、正常動作時と比較して、各温度の変化量が小さくなっていることが確認できる。 Here, when a refrigerant leak occurs, as shown in FIG. 5B, it can be confirmed that the amount of change in each temperature becomes smaller compared to during normal operation.
　図５Ｂに示すＬ１１は、圧縮機２２から吐出される冷媒の温度変化を示しており、第１温度検出部２６の検出結果に基づく。Ｌ２１は、凝縮器２３から吐出される冷媒の温度変化を示しており、第２温度検出部２７の検出結果に基づく。 L11 shown in FIG. 5B indicates a temperature change of the refrigerant discharged from the compressor 22, and is based on the detection result of the first temperature detection section 26. L21 indicates a temperature change of the refrigerant discharged from the condenser 23, and is based on the detection result of the second temperature detection section 27.
　具体的には、図５Ｂに示すＬ１１は、時間が経過するつれ温度が上昇しているものの、図５Ａに示すＬ１と比較して、傾き（変化率）が顕著に小さくなっていることが確認できる。 Specifically, although the temperature of L11 shown in FIG. 5B is increasing as time passes, it is confirmed that the slope (rate of change) is significantly smaller compared to L1 shown in FIG. 5A. can.
　このことから、故障判断部３０は、第１温度検出部２６から、第２処理による動作期間内の冷媒回路部２０における圧縮機２２から吐出される冷媒の温度情報を取得し、冷媒の温度情報の変化率に基づいて、故障の種類を判定する。故障判断部３０は、冷媒の温度情報の変化率が第１閾値未満である場合、故障の種類が冷媒漏れであると判断する。 From this, the failure determination unit 30 acquires the temperature information of the refrigerant discharged from the compressor 22 in the refrigerant circuit unit 20 during the operation period by the second process from the first temperature detection unit 26, and obtains the temperature information of the refrigerant. The type of failure is determined based on the rate of change. The failure determination unit 30 determines that the type of failure is a refrigerant leak when the rate of change of the refrigerant temperature information is less than the first threshold.
　第１閾値は、正常動作時における、圧縮機２２から吐出される冷媒の温度の変化率よりも小さい変化率に対応する値であり、実験等に基づいて適宜設定可能である。 The first threshold value corresponds to a rate of change in temperature of the refrigerant discharged from the compressor 22 during normal operation, and can be set as appropriate based on experiments and the like.
　また、図５Ｂに示すＬ２１は、時間が経過してもほとんど温度が変化していないことが確認できる。 Furthermore, it can be confirmed that the temperature of L21 shown in FIG. 5B hardly changes over time.
　このことから、故障判断部３０は、第２温度検出部２７から、第２処理による動作期間内の冷媒回路部２０における凝縮器２３から吐出される冷媒の温度が所定の温度範囲から外れている場合、故障の種類が冷媒回路部２０の冷媒漏れであると判断する。 From this, the failure determination unit 30 determines from the second temperature detection unit 27 that the temperature of the refrigerant discharged from the condenser 23 in the refrigerant circuit unit 20 during the operation period by the second process is outside the predetermined temperature range. If so, it is determined that the type of failure is a refrigerant leak from the refrigerant circuit section 20.
　所定の温度範囲は、例えば正常動作時における所定の時間において凝縮器２３から吐出される温度が到達する温度範囲であり、実験等に基づいて適宜設定可能である。 The predetermined temperature range is, for example, the temperature range reached by the temperature discharged from the condenser 23 during a predetermined time during normal operation, and can be set as appropriate based on experiments and the like.
　このようにすることで、冷媒漏れが発生した場合に、故障の種類が冷媒漏れであることを容易に判断することができる。 By doing this, when a refrigerant leak occurs, it can be easily determined that the type of failure is a refrigerant leak.
　また、衣類処理装置１における冷媒回路部２０の故障の種類には、例えば減圧部２４の冷媒詰まりが挙げられる。 Furthermore, the types of failures in the refrigerant circuit section 20 in the clothing processing apparatus 1 include, for example, refrigerant clogging in the decompression section 24.
　冷媒詰まりが発生すると、図５Ｃに示すように、正常動作時と比較して、圧縮機２２から吐出される温度の変化量が大きくなっていることが確認できる。 When refrigerant clogging occurs, as shown in FIG. 5C, it can be confirmed that the amount of change in temperature discharged from the compressor 22 becomes larger compared to during normal operation.
　図５Ｃに示すＬ１２は、圧縮機２２から吐出される冷媒の温度変化を示しており、第１温度検出部２６の検出結果に基づく。Ｌ２２は、凝縮器２３から吐出される冷媒の温度変化を示しており、第２温度検出部２７の検出結果に基づく。 L12 shown in FIG. 5C indicates a temperature change of the refrigerant discharged from the compressor 22, and is based on the detection result of the first temperature detection unit 26. L22 indicates the temperature change of the refrigerant discharged from the condenser 23, and is based on the detection result of the second temperature detection section 27.
　具体的には、図５Ｃに示すＬ１２は、時間が経過するつれ温度が上昇し、図５Ａに示すＬ１と比較して、傾き（変化率）が顕著に大きくなっていることが確認できる。 Specifically, it can be confirmed that the temperature of L12 shown in FIG. 5C increases as time passes, and the slope (rate of change) becomes significantly larger than L1 shown in FIG. 5A.
　このことから、故障判断部３０は、第１温度検出部２６から、第２処理による動作期間内における冷媒回路部２０における圧縮機２２から吐出される冷媒の温度情報を取得し、温度情報の変化率に基づいて、故障の種類を判定する。故障判断部３０は、温度情報の変化率が第２閾値を上回った場合、故障の種類が減圧部２４の冷媒詰まりであると判断する。 From this, the failure determination unit 30 acquires the temperature information of the refrigerant discharged from the compressor 22 in the refrigerant circuit unit 20 during the operation period by the second process from the first temperature detection unit 26, and changes the temperature information. Based on the rate, determine the type of failure. If the rate of change in the temperature information exceeds the second threshold, the failure determining unit 30 determines that the type of failure is refrigerant clogging in the pressure reducing unit 24 .
　また、減圧部２４の冷媒詰まりは、冷媒流通パイプ２５内の埃等に起因するが、冷媒回路部２０を動作させ続けることにより、冷媒流通パイプ２５内を冷媒が流れようとするため、冷媒詰まりが一時的に解消する場合がある。この場合、第２処理による動作期間で、温度情報の変化率が第２閾値を上回らないので、冷媒詰まりが発生する可能性が高いにも関わらず、冷媒詰まりの故障を判断できない可能性がある。 In addition, refrigerant clogging in the depressurizing section 24 is caused by dust or the like in the refrigerant distribution pipe 25, but by continuing to operate the refrigerant circuit section 20, the refrigerant tries to flow in the refrigerant distribution pipe 25, so the refrigerant clogging occurs. may be temporarily resolved. In this case, since the rate of change of temperature information does not exceed the second threshold during the operation period due to the second process, it may not be possible to determine a failure due to refrigerant clogging, even though there is a high possibility that refrigerant clogging will occur. .
　そのため、故障判断部３０は、第１処理における動作期間内の、圧縮機２２と凝縮器２３との間の温度の変化率が第２閾値を上回った履歴情報がある場合、故障の種類が減圧部２４の冷媒詰まりであると判断しても良い。 Therefore, if there is history information in which the rate of change in temperature between the compressor 22 and the condenser 23 exceeds the second threshold during the operation period in the first process, the failure determination unit 30 determines that the type of failure is depressurization. It may be determined that the refrigerant in the section 24 is clogged.
　履歴情報は、圧縮機２２と凝縮器２３との間の温度の変化率が第２閾値を上回った回数を示す情報であり、衣類処理装置１に設けられる記憶装置等に記憶されるようにしても良い。 The history information is information indicating the number of times the rate of change in temperature between the compressor 22 and the condenser 23 exceeds the second threshold, and is stored in a storage device etc. provided in the clothing processing device 1. Also good.
　例えば、故障判断部３０は、第２処理において、故障の種類が減圧部２４の冷媒詰まりと判断しなかった場合、上記履歴情報を参照して、上記の温度の変化率が第２閾値を上回った回数が所定回数以上である場合、故障の種類が減圧部２４の冷媒詰まりであると判断する。 For example, if the failure determination unit 30 does not determine in the second process that the type of failure is refrigerant clogging in the decompression unit 24, the failure determination unit 30 refers to the history information and determines whether the rate of change in temperature exceeds the second threshold. If the number of times of failure is equal to or greater than a predetermined number of times, it is determined that the type of failure is refrigerant clogging in the pressure reducing section 24.
　所定回数は、例えば、１回、２回等、適宜な値に設定しても良い。 The predetermined number of times may be set to an appropriate value, such as once or twice.
　なお、第２処理を行う前に、履歴情報を参照して、故障の種類が減圧部２４の冷媒詰まりであると判断しても良い。 Note that, before performing the second process, it may be determined that the type of failure is refrigerant clogging in the pressure reducing section 24 by referring to the history information.
　つまり、第１処理の動作期間において、圧縮機２２と凝縮器２３との間の温度の変化率が第２閾値を上回ったことがある場合、故障判断部３０は、故障の種類が減圧部２４の冷媒詰まりであると判断しても良い。 In other words, if the rate of change in temperature between the compressor 22 and the condenser 23 exceeds the second threshold during the operation period of the first process, the failure determination unit 30 determines that the type of failure is in the pressure reducing unit 24. It may be determined that the refrigerant is clogged.
　この場合、故障判断部３０は、第２処理において、冷媒漏れの有無のみを判断するようにし、第２処理の結果に関わらず、故障の種類が冷媒詰まりであると判断するようにしても良い。 In this case, the failure determination unit 30 may determine only whether there is a refrigerant leak in the second process, and determine that the type of failure is refrigerant clogging regardless of the result of the second process. .
　また、故障判断部３０の判断結果は、上記の通知部１６によってユーザに通知される。通知部１６は、冷媒漏れのみが発生した場合、冷媒漏れが発生した旨を通知し、冷媒詰まりのみが発生した場合、冷媒詰まりが発生した旨を通知し、冷媒漏れおよび冷媒詰まりの両方が発生した場合、冷媒漏れおよび冷媒詰まりの両方が発生した旨を通知する。 Furthermore, the determination result of the failure determination unit 30 is notified to the user by the notification unit 16 described above. The notification unit 16 notifies that a refrigerant leak has occurred if only a refrigerant leak has occurred, notifies that a refrigerant block has occurred if only a refrigerant block has occurred, and notifies that a refrigerant block has occurred if both a refrigerant leak and a refrigerant block have occurred. If this happens, you will be notified that both a refrigerant leak and a refrigerant blockage have occurred.
　通知部１６による通知方法は、衣類処理装置１の表示装置に文字の情報等で表示する、衣類処理装置１の音声出力装置で音声の情報等で出力する、等であっても良い。また、通知部１６は、通信ネットワーク経由で衣類処理装置１以外の装置（例えば、ユーザの携帯端末、パーソナルコンピュータ、サービスセンターのサーバ装置等）に通知するようにしても良い。 The notification method by the notification unit 16 may be to display text information etc. on the display device of the clothing processing device 1, to output audio information etc. using the audio output device of the clothing processing device 1, etc. Further, the notification unit 16 may notify a device other than the clothing processing device 1 (for example, a user's mobile terminal, a personal computer, a server device of a service center, etc.) via a communication network.
　また、故障判断部３０は、故障判断部３０の判断が必要であるか否かについて判断するようにしても良い。故障判断部３０は、本開示の「要否判定部」に対応する。 Furthermore, the failure determining section 30 may determine whether or not the determination by the failure determining section 30 is necessary. The failure determination unit 30 corresponds to the “necessity determination unit” of the present disclosure.
　具体的には、故障判断部３０は、第１処理が指示された場合、第１処理の動作期間内での温度情報の変化率および衣類の投入量情報に応じて、故障判断部３０の判断が必要であるか否かについて判定する。 Specifically, when the first process is instructed, the failure determination unit 30 makes the determination based on the rate of change of temperature information and the amount of clothing input during the operation period of the first process. Determine whether or not it is necessary.
　例えば、故障判断部３０は、第１処理の動作期間で、冷媒回路部２０の温度情報の変化率を第１温度検出部２６から取得し、衣類の投入量情報を重量検出部１７から取得する。 For example, during the operation period of the first process, the failure determination unit 30 acquires the rate of change of temperature information of the refrigerant circuit unit 20 from the first temperature detection unit 26, and acquires information on the amount of clothing input from the weight detection unit 17. .
　そして、故障判断部３０は、例えば、予め用意された、温度情報の変化率と衣類の投入量との関係を示すテーブルを参照して、取得した投入量情報に対応する温度情報の変化率と、第１温度検出部２６から取得した温度情報の変化率とを比較して、差異が所定値（任意に設定可能）である場合、故障判断部３０の判断が必要であると判定する。 Then, the failure determination unit 30 refers to, for example, a table prepared in advance that shows the relationship between the rate of change of temperature information and the amount of clothing input, and determines the rate of change of temperature information corresponding to the acquired amount of input information. , and the rate of change of the temperature information acquired from the first temperature detection unit 26, and if the difference is a predetermined value (which can be set arbitrarily), it is determined that a determination by the failure determination unit 30 is necessary.
　故障判断部３０が、故障判断部３０の判断が必要であると判定した場合、通知部１６は、故障判断部３０の判断が必要である旨をユーザに通知する。例えば、通知部１６は、第２処理を行うようユーザに通知する。 When the failure determining unit 30 determines that the determination by the failure determining unit 30 is necessary, the notification unit 16 notifies the user that the determination by the failure determining unit 30 is necessary. For example, the notification unit 16 notifies the user to perform the second process.
　これにより、ユーザが第２処理で衣類処理装置１を動作させるタイミングを迅速に把握することができる。 Thereby, the user can quickly grasp the timing to operate the clothing processing device 1 in the second process.
　以上のように構成された故障判断部３０における故障判断制御の動作例について説明する。図６は、故障判断部３０における故障判断制御の動作例を示すフローチャートである。図６における処理は、例えば、第２処理の動作の実行指示を受け付けた際に適宜実行される。 An example of the operation of failure determination control in the failure determination unit 30 configured as described above will be described. FIG. 6 is a flowchart showing an example of the operation of failure determination control in the failure determination unit 30. The process in FIG. 6 is executed as appropriate, for example, when an instruction to execute the second process operation is received.
　図６に示すように、故障判断部３０は、第２処理により衣類処理装置１を動作させる（ステップＳ１０１）。次に、故障判断部３０は、第１温度検出部２６の温度変化率が第１閾値未満であるか否かについて判定する（ステップＳ１０２）。 As shown in FIG. 6, the failure determination unit 30 operates the clothing processing device 1 through the second process (step S101). Next, the failure determination unit 30 determines whether the temperature change rate of the first temperature detection unit 26 is less than the first threshold (step S102).
　判定の結果、温度変化率が第１閾値以上である場合（ステップＳ１０２、ＮＯ）、故障判断部３０は、第２温度検出部２７の温度が所定の温度範囲内であるか否かについて判定する（ステップＳ１０３）。 As a result of the determination, if the temperature change rate is equal to or higher than the first threshold (step S102, NO), the failure determination unit 30 determines whether the temperature of the second temperature detection unit 27 is within a predetermined temperature range. (Step S103).
　判定の結果、温度が所定の温度範囲内である場合（ステップＳ１０３、ＹＥＳ）、処理はステップＳ１０６に遷移する。一方、温度が所定の温度範囲外である場合（ステップＳ１０３、ＮＯ）、処理はステップＳ１０４に遷移する。 As a result of the determination, if the temperature is within the predetermined temperature range (step S103, YES), the process transitions to step S106. On the other hand, if the temperature is outside the predetermined temperature range (step S103, NO), the process transitions to step S104.
　ステップＳ１０２の判定に戻り、温度変化率が第１閾値未満である場合（ステップＳ１０２、ＹＥＳ）、故障判断部３０は、故障の種類が冷媒漏れであると判断する（ステップＳ１０４）。そして、故障判断部３０は、故障の種類が冷媒漏れであることを通知する（ステップＳ１０５）。 Returning to the determination in step S102, if the temperature change rate is less than the first threshold (step S102, YES), the failure determination unit 30 determines that the type of failure is a refrigerant leak (step S104). Then, the failure determination unit 30 notifies that the type of failure is a refrigerant leak (step S105).
　次に、故障判断部３０は、第１温度検出部２６の温度変化率が第２閾値を上回っているか否かについて判定する（ステップＳ１０６）。判定の結果、温度変化率が第２閾値を上回っていない場合（ステップＳ１０６、ＮＯ）、本制御は終了する。 Next, the failure determination unit 30 determines whether the temperature change rate of the first temperature detection unit 26 exceeds the second threshold (step S106). As a result of the determination, if the temperature change rate does not exceed the second threshold (step S106, NO), this control ends.
　一方、温度変化率が第２閾値を上回っている場合（ステップＳ１０６、ＹＥＳ）、故障判断部３０は、故障の種類が冷媒詰まりであると判断する（ステップＳ１０７）。そして、故障判断部３０は、故障の種類が冷媒詰まりであることを通知する（ステップＳ１０８）。ステップＳ１０８の後、本制御は終了する。 On the other hand, if the temperature change rate exceeds the second threshold (step S106, YES), the failure determination unit 30 determines that the type of failure is refrigerant clogging (step S107). Then, the failure determination unit 30 notifies that the type of failure is refrigerant clogging (step S108). After step S108, this control ends.
　以上のように構成された本実施の形態によれば、第２処理において、冷媒回路部２０の温度情報に基づいて、衣類処理装置１の故障の種類を判断する。具体的には、故障判断部３０が圧縮機２２から吐出される冷媒の温度情報の変化率、または、凝縮器２３から吐出される冷媒の温度情報の範囲に基づいて、故障の種類が冷媒回路部２０の冷媒漏れと判断する。また、故障判断部３０が圧縮機２２から吐出される温度情報の変化率に基づいて、故障の種類が冷媒回路部２０の減圧部２４の冷媒詰まりであると判断する。 According to the present embodiment configured as above, in the second process, the type of failure of the clothing processing device 1 is determined based on the temperature information of the refrigerant circuit section 20. Specifically, the failure determination unit 30 determines whether the type of failure is in the refrigerant circuit based on the rate of change of temperature information of the refrigerant discharged from the compressor 22 or the range of temperature information of the refrigerant discharged from the condenser 23. It is determined that there is a refrigerant leak in the section 20. Further, the failure determining unit 30 determines that the type of failure is refrigerant clogging in the pressure reduction unit 24 of the refrigerant circuit unit 20 based on the rate of change in temperature information discharged from the compressor 22.
　このように本実施の形態では、衣類処理装置１における故障の種類を正確に判断することができる。 As described above, in this embodiment, the type of failure in the clothing processing device 1 can be accurately determined.
　また、通知部１６により、故障判断部３０の判断結果が通知されるので、ユーザが故障箇所を正確、かつ、迅速に把握することができる。その結果、衣類処理装置１の修理の際に必要な部品を準備しやすくすることができる。 Furthermore, since the notification unit 16 notifies the determination result of the failure determination unit 30, the user can accurately and quickly understand the location of the failure. As a result, necessary parts can be easily prepared when repairing the clothing processing device 1.
　また、第１処理の動作期間内での冷媒回路部の温度情報および槽１２における衣類の投入量情報に応じて、故障判断部３０の判断が必要であるか否かについて判定するので、その判定結果に基づいて第２処理を行うことができる。そのため、必要な時のみで第２処理を行わせることができる。 In addition, since it is determined whether or not a determination by the failure determining section 30 is necessary according to the temperature information of the refrigerant circuit section and the information on the amount of clothing put into the tank 12 during the operation period of the first process, the determination is made as follows. A second process can be performed based on the results. Therefore, the second process can be performed only when necessary.
　なお、上記実施の形態では、故障の種類として、冷媒漏れ、または、冷媒詰まりを判断していたが、本開示はこれに限定されない。例えば、冷媒回路部２０の温度情報に基づいて、冷媒漏れの有無、または、冷媒詰まりの有無を判断し、冷媒漏れ、および、冷媒詰まりがない場合、その他の不具合情報を取得して、故障の種類を判断しても良い。 Note that in the above embodiment, refrigerant leak or refrigerant clogging is determined as the type of failure, but the present disclosure is not limited to this. For example, based on the temperature information of the refrigerant circuit section 20, it is determined whether there is a refrigerant leak or refrigerant clogging, and if there is no refrigerant leak or refrigerant clogging, other malfunction information is acquired and the malfunction is detected. You can also judge the type.
　また、上記実施の形態では、故障判断部３０が要否判定部の機能を有していたが、本開示はこれに限定されず、要否判定部が故障判断部とは別に設けられていても良い。 Further, in the above embodiment, the failure determination section 30 has the function of a necessity determination section, but the present disclosure is not limited to this, and the necessity determination section is provided separately from the failure determination section. Also good.
　また、上記実施の形態では、第２処理を、少なくとも圧縮機２２、減圧部２４および循環風路部１３の循環処理を第１処理とは異ならせる処理としていたが、本開示はこれに限定されない。例えば、第２処理を、衣類が槽内にない場合の処理であって、第１処理と同様の処理としても良い。 Further, in the above embodiment, the second process is a process in which at least the circulation process of the compressor 22, the pressure reducing part 24, and the circulation air passage part 13 is different from the first process, but the present disclosure is not limited to this. . For example, the second process may be a process when there is no clothing in the tank, and may be the same process as the first process.
　また、上記実施の形態では、第２温度検出部が冷媒流通パイプにおける凝縮器と減圧部との間の部位の温度を検出していたが、本開示はこれに限定されず、例えば、減圧部と蒸発器との間の部位の温度、蒸発器と圧縮機との間の部位の温度を検出しても良い。 Further, in the above embodiment, the second temperature detection section detects the temperature of the portion between the condenser and the pressure reduction section in the refrigerant distribution pipe, but the present disclosure is not limited thereto. It is also possible to detect the temperature of the region between the evaporator and the evaporator, or the temperature of the region between the evaporator and the compressor.
　その他、上記実施の形態は、何れも本開示を実施するにあたっての具体化の一例を示したものに過ぎず、これらによって本開示の技術的範囲が限定的に解釈されてはならないものである。すなわち、本開示はその要旨、またはその主要な特徴から逸脱することなく、様々な形で実施することができる。 In addition, the above-mentioned embodiments are merely examples of implementation of the present disclosure, and the technical scope of the present disclosure should not be construed to be limited by them. That is, the present disclosure can be implemented in various forms without departing from the gist or main features thereof.
　２０２２年６月２日出願の特願２０２２－０９０２０７の日本出願に含まれる明細書、図面および要約書の開示内容は、すべて本願に援用される。 The disclosure contents of the specification, drawings, and abstract contained in the Japanese patent application No. 2022-090207 filed on June 2, 2022 are all incorporated into this application.
　本開示の衣類処理装置は、故障の種類を正確に判断することが可能な衣類処理装置、故障判断方法およびプログラムとして有用である。 The clothing processing device of the present disclosure is useful as a clothing processing device, a failure determination method, and a program that can accurately determine the type of failure.
　１　衣類処理装置
　１１　外槽
　１２　槽
　１３　循環風路部
　１４　送風部
　１５　指示部
　１６　通知部
　１７　重量検出部
　２０　冷媒回路部
　２１　蒸発器
　２２　圧縮機
　２３　凝縮器
　２４　減圧部
　２５　冷媒流通パイプ
　２６　第１温度検出部
　２７　第２温度検出部
　３０　故障判断部
  1 Clothes processing device 11 Outer tank 12 Tank 13 Circulating air path section 14 Air blowing section 15 Indication section 16 Notification section 17 Weight detection section 20 Refrigerant circuit section 21 Evaporator 22 Compressor 23 Condenser 24 Pressure reduction section 25 Refrigerant distribution pipe 26 First Temperature detection section 27 Second temperature detection section 30 Failure determination section

Claims (11)

  1. 　衣類を投入可能な槽と、
    　圧縮機、凝縮器、減圧部および蒸発器の順に冷媒が循環する冷媒回路部と、
    　前記槽と前記冷媒回路部との間で空気を循環させる循環風路部と、
    　前記槽内の前記衣類の乾燥処理を行う第１処理と、前記衣類が前記槽内にない場合の処理である第２処理とを含む、前記循環風路部における前記空気の循環処理のうちの１つを実行指示可能な指示部と、
    　前記第２処理が指示された場合、前記冷媒回路部の温度情報に基づいて、故障の種類を判断する故障判断部と、
    　を備える衣類処理装置。     A tank into which clothes can be put,
    a refrigerant circuit section in which refrigerant circulates in the order of a compressor, a condenser, a pressure reducing section, and an evaporator;
    a circulation air path section that circulates air between the tank and the refrigerant circuit section;
    The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. an instruction section capable of instructing execution of one;
    a failure determination unit that determines the type of failure based on temperature information of the refrigerant circuit unit when the second process is instructed;
    A clothing processing device comprising:
  2. 　前記故障判断部の判断結果を通知する通知部を備える、
    　請求項１に記載の衣類処理装置。     comprising a notification unit that notifies the judgment result of the failure judgment unit;
    The clothing processing device according to claim 1.
  3. 　前記故障判断部は、前記第２処理による動作期間内の前記冷媒回路部の前記圧縮機から吐出される冷媒の温度情報の変化率に基づいて前記故障の種類を判断する、
    　請求項１に記載の衣類処理装置。     The failure determination unit determines the type of failure based on a rate of change in temperature information of the refrigerant discharged from the compressor of the refrigerant circuit unit during the operation period by the second process.
    The clothing processing device according to claim 1.
  4. 　前記故障判断部は、前記温度情報の変化率が第１閾値未満である場合、前記故障の種類が前記冷媒回路部の冷媒漏れであると判定する、
    　請求項３に記載の衣類処理装置。     The failure determining unit determines that the type of failure is a refrigerant leak from the refrigerant circuit unit when the rate of change of the temperature information is less than a first threshold.
    The clothing processing device according to claim 3.
  5. 　前記故障判断部は、前記第２処理による動作期間内の前記冷媒回路部の前記凝縮器から吐出される冷媒の温度が所定の温度範囲から外れている場合、前記故障の種類が前記冷媒回路部の冷媒漏れであると判定する、
    　請求項１に記載の衣類処理装置。     The failure determining unit determines that the type of failure is in the refrigerant circuit when the temperature of the refrigerant discharged from the condenser of the refrigerant circuit during the operation period by the second process is out of a predetermined temperature range. It is determined that there is a refrigerant leak.
    The clothing processing device according to claim 1.
  6. 　前記故障判断部は、所定の動作期間内の前記冷媒回路部における前記圧縮機から吐出される冷媒の温度情報の変化率が第２閾値を上回った場合、前記故障の種類が前記減圧部の冷媒詰まりであると判定する、
    　請求項１に記載の衣類処理装置。     The failure determining unit determines that the type of failure is the refrigerant in the pressure reducing unit when a rate of change in temperature information of the refrigerant discharged from the compressor in the refrigerant circuit unit within a predetermined operation period exceeds a second threshold. It is determined that there is a blockage.
    The clothing processing device according to claim 1.
  7. 　前記故障判断部は、前記第１処理における前記温度情報の変化率が前記第２閾値を上回った履歴情報がある場合、前記故障の種類が前記減圧部の冷媒詰まりであると判定する、
    　請求項６に記載の衣類処理装置。     The failure determining unit determines that the type of failure is refrigerant clogging in the pressure reducing unit if there is history information in which the rate of change of the temperature information in the first process exceeds the second threshold.
    The clothing processing device according to claim 6.
  8. 　前記第１処理が指示された場合、前記第１処理の動作期間内での前記温度情報および前記槽における前記衣類の投入量情報に応じて、前記故障判断部の判断が必要であるか否かについて判定する要否判定部を備える、
    　請求項１に記載の衣類処理装置。     When the first process is instructed, whether or not the failure determining unit needs to make a determination based on the temperature information and the information on the amount of clothing put into the tank during the operation period of the first process. comprising a necessity determination unit that determines the
    The clothing processing device according to claim 1.
  9. 　前記第２処理は、少なくとも前記圧縮機、前記減圧部および前記循環処理を前記第１処理とは異ならせる処理である、
    　請求項１に記載の衣類処理装置。     The second process is a process in which at least the compressor, the pressure reducing section, and the circulation process are different from the first process.
    The clothing processing device according to claim 1.
  10. 　衣類を投入可能な槽と、圧縮機、凝縮器、減圧部および蒸発器の順に冷媒が循環する冷媒回路部と、前記槽と前記冷媒回路部との間で空気を循環させる循環風路部とを有する衣類処理装置の故障判断方法であって、
    　前記槽内の前記衣類の乾燥処理を行う第１処理と、前記衣類が前記槽内にない場合の処理である第２処理とを含む、前記循環風路部における前記空気の循環処理のうち、前記第２処理を実行指示し、
    　前記第２処理が指示された場合、前記冷媒回路部の温度情報に基づいて、故障の種類を判断する故障判断方法。     a tank into which clothes can be put; a refrigerant circuit section through which refrigerant circulates in the order of a compressor, a condenser, a decompression section, and an evaporator; and a circulating air path section through which air is circulated between the tank and the refrigerant circuit section. A method for determining failure of a clothing processing device having the following steps:
    The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. instructing to execute the second process;
    A failure determination method for determining a type of failure based on temperature information of the refrigerant circuit section when the second process is instructed.
  11. 　衣類を投入可能な槽と、圧縮機、凝縮器、減圧部および蒸発器の順に冷媒が循環する冷媒回路部と、前記槽と前記冷媒回路部との間で空気を循環させる循環風路部とを有する衣類処理装置のプログラムであって、
    　コンピュータに、
    　前記槽内の前記衣類の乾燥処理を行う第１処理と、前記衣類が前記槽内にない場合の処理である第２処理とを含む、前記循環風路部における前記空気の循環処理のうち、前記第２処理を実行指示する処理と、
    　前記第２処理が指示された場合、前記冷媒回路部の温度情報に基づいて、故障の種類を判断する処理と、
    　を実行させるプログラム。     a tank into which clothes can be put; a refrigerant circuit section through which refrigerant circulates in the order of a compressor, a condenser, a decompression section, and an evaporator; and a circulating air path section through which air is circulated between the tank and the refrigerant circuit section. A program for a clothing processing device having:
    to the computer,
    The air circulation process in the circulating air path section includes a first process for drying the clothes in the tank, and a second process that is a process when the clothes are not in the tank. a process for instructing execution of the second process;
    When the second process is instructed, a process of determining the type of failure based on temperature information of the refrigerant circuit section;
    A program to run.
PCT/JP2023/018975 2022-06-02 2023-05-22 Clothing treatment device, failure determination method, and program WO2023234105A1 (en)

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JP2022-090207 2022-06-02

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001041611A (en) * 1999-08-03 2001-02-16 Hitachi Ltd Air conditioner
JP2006078015A (en) * 2004-09-07 2006-03-23 Sanyo Electric Co Ltd Heat pump device and dryer
JP2007082588A (en) * 2005-09-20 2007-04-05 Matsushita Electric Ind Co Ltd Clothes dryer
JP2007236731A (en) * 2006-03-10 2007-09-20 Matsushita Electric Ind Co Ltd Clothes drying apparatus
JP2007301130A (en) * 2006-05-11 2007-11-22 Matsushita Electric Ind Co Ltd Clothes dryer
JP2012095718A (en) * 2010-10-29 2012-05-24 Toshiba Corp Clothing drying machine
JP2021142089A (en) * 2020-03-12 2021-09-24 パナソニックＩｐマネジメント株式会社 Clothes dryer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001041611A (en) * 1999-08-03 2001-02-16 Hitachi Ltd Air conditioner
JP2006078015A (en) * 2004-09-07 2006-03-23 Sanyo Electric Co Ltd Heat pump device and dryer
JP2007082588A (en) * 2005-09-20 2007-04-05 Matsushita Electric Ind Co Ltd Clothes dryer
JP2007236731A (en) * 2006-03-10 2007-09-20 Matsushita Electric Ind Co Ltd Clothes drying apparatus
JP2007301130A (en) * 2006-05-11 2007-11-22 Matsushita Electric Ind Co Ltd Clothes dryer
JP2012095718A (en) * 2010-10-29 2012-05-24 Toshiba Corp Clothing drying machine
JP2021142089A (en) * 2020-03-12 2021-09-24 パナソニックＩｐマネジメント株式会社 Clothes dryer

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