Equipment defrosting method and device, refrigeration equipment and computer readable storage medium

Abstract

The invention relates to the technical field of intelligent household appliances, and discloses a method for defrosting equipment, which comprises the following steps: turning on a light source at a first time interval; acquiring the light transmission amount received by a receiving device; and when the light transmission amount received by the receiving device is smaller than the first threshold value or the defrosting operation is not executed in the second duration, the defrosting operation is executed. When the frosting amount is detected through the light detection device, the forced defrosting period of the second duration is set, so that the refrigeration equipment is controlled to forcibly enter defrosting when the light detection device breaks down and cannot enter defrosting in time, and in the process of detecting the frosting situation through the light detection device, the refrigeration equipment cannot enter the defrosting period in time. The situation that the refrigeration equipment cannot enter the defrosting operation delay due to the fact that the optical detection device breaks down is avoided, and stable operation of the refrigeration equipment is guaranteed. The invention further discloses a device for defrosting the equipment, the refrigeration equipment and a computer readable storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a method and device for defrosting equipment, a refrigeration device, and a computer-readable storage medium. Background Art

[0002] Currently, the defrosting method generally adopts timed defrosting or manual button defrosting. Timed defrosting generally considers the conditions of the machine, and inevitably generates unnecessary defrosting actions, increasing additional energy consumption. Manual button defrosting requires the user to defrost in a timely manner, increasing the burden on the user. The existing defrosting schemes cannot truly reflect the frosting degree of the evaporator, and there are relatively large problems in the judgment accuracy. It is very likely to generate unnecessary defrosting actions, or in the case of severe frosting, it cannot defrost in a timely manner, resulting in a certain lag in the defrosting action, affecting the operating efficiency of the air conditioner, making the air conditioner unable to always operate under the optimal performance conditions, and affecting the user experience.

[0003] The related technology discloses a frost detection device. The frost detection device includes a light-emitting device and a light-receiving device. The frost detection device is electrically connected to the control component and converts the detected optical signal into an electrical signal and transmits it to the control component. The frost detection device uses frost as an obstacle to the light beam channel. By blocking and refracting the light beam, the intensity of the light is changed, so that the output signal of the light-receiving device changes. It can be applied to aspects such as defrosting control and frost volume control of refrigeration appliances. It is detected by the frost detection device, or detected by both a pipeline temperature sensor and a frost detection device. This defrosting control method uses the frost detection device to detect the circulation system, can accurately judge whether there is frosting, perform effective defrosting, and improve the heat pump heating efficiency of the air conditioner.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related technology:

[0005] Although the related technology improves the accuracy of frost detection to a certain extent by detecting the frost degree through light intensity. However, in the actual application process, the light intensity detection device may malfunction, causing the refrigeration equipment to be unable to enter the defrosting state for a long time, affecting the operation of the refrigeration equipment, and resulting in poor user experience.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0008] Embodiments of the present disclosure provide a method and device for defrosting equipment, a refrigeration device, and a computer-readable storage medium, so as to avoid the situation that the refrigeration device cannot enter the defrosting operation for a long time due to a failure of the light detection device during the process of detecting the frosting condition by the light detection device, and ensure the stable operation of the refrigeration device.

[0009] In some embodiments, the method is applied to a refrigeration device, which includes a heat exchanger, a light source facing the fins of the heat exchanger, and a receiving device for receiving the light rays of the light source; the method includes: turning on the light source at intervals of a first time period; obtaining the light transmission amount received by the receiving device; and performing a defrosting operation when the light transmission amount received by the receiving device is less than a first threshold or no defrosting operation has been performed for a second time period.

[0010] Optionally, after obtaining the light transmission amount received by the receiving device, it further includes: obtaining the temperature of the heat exchanger; and exiting the defrosting operation when the light transmission amount received by the receiving device is greater than a second threshold or the temperature of the heat exchanger is greater than a set temperature.

[0011] Optionally, the method for defrosting equipment further includes: determining that the light source, the receiving device, and / or the heat exchanger is faulty when the first determination condition for performing the defrosting operation and the second determination condition for exiting the defrosting operation do not correspond for a continuously set number of times.

[0012] Optionally, the following method is used to determine whether the first determination condition and the second determination condition correspond: when the first determination condition is that the light transmission amount is less than the first threshold and the second determination condition is that the light transmission amount is greater than the second threshold, or when the first determination condition is that no defrosting operation has been performed for the second time period and the second determination condition is that the temperature of the heat exchanger is greater than the set temperature, it is determined that the first determination condition and the second determination condition correspond.

[0013] Optionally, after determining that the light source, the receiving device, and / or the heat exchanger is faulty, it further includes: determining the cause of the fault according to the first determination condition and the second determination condition.

[0014] Optionally, determining the cause of the fault according to the first determination condition and the second determination condition includes: when the first determination condition is that the received light transmission amount is less than the first threshold and the second determination condition is that the temperature of the heat exchanger is greater than the set temperature, determining that the heat exchanger is faulty; when the first determination condition is that no defrosting operation has been performed for the second time period and the second determination condition is that the light transmission amount is greater than the second threshold, determining that the receiving device or the light source is faulty.

[0015] Optionally, the refrigeration device includes a temperature sensor for detecting the temperature of the heat exchanger; according to the first judgment condition and the second judgment condition, the cause of the failure is determined, and it further includes: when the first judgment condition is that the defrosting operation has not been performed for the second time period, and the defrosting operation still has not exited after continuing for the third time period, it is determined that the light source, the receiving device, and the temperature sensor are faulty.

[0016] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for defrosting the device when executing the above-mentioned program instructions.

[0017] In some embodiments, the refrigeration device includes: a refrigeration device body including a heat exchanger, a light source facing the fins of the heat exchanger, and a receiving device for receiving the light rays of the light source; and the above-mentioned device for defrosting the device is installed on the refrigeration device body.

[0018] In some embodiments, the computer-readable storage medium stores program instructions, and when the above-mentioned program instructions are running, they execute the above-mentioned method for defrosting the device.

[0019] The method and device for defrosting the device, the refrigeration device, and the computer-readable storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The light source is turned on at intervals of the first time period, and the light transmission amount received by the receiving device is obtained. When the light transmission amount received by the receiving device is less than the first threshold or the defrosting operation has not been performed for the second time period, the defrosting operation is performed. While detecting the frosting amount through the light detection device, a forced defrosting cycle of the second time period is also set to control the refrigeration device to forcibly enter defrosting when the light detection device fails and cannot enter defrosting in time. During the process of detecting the frosting situation through the light detection device, the situation where the refrigeration device cannot enter the defrosting operation for a long time due to the failure of the light detection device is avoided, ensuring the stable operation of the refrigeration device.

[0021] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0023] Figure 1 is a schematic diagram of a refrigeration device provided by an embodiment of the present disclosure;

[0024] Figure 2It is a schematic diagram of a method for defrosting a device provided by an embodiment of the present disclosure;

[0025] Figure 3 It is a schematic diagram of another method for defrosting a device provided by an embodiment of the present disclosure;

[0026] Figure 4 It is a schematic diagram of another method for defrosting a device provided by an embodiment of the present disclosure;

[0027] Figure 5 It is a schematic diagram of a device for defrosting a device provided by an embodiment of the present disclosure;

[0028] Figure 6 It is a schematic diagram of a refrigeration device provided by an embodiment of the present disclosure.

[0029] Reference numerals:

[0030] 1: Heat exchanger fin; 2: Light source; 3: Receiving device; 4: Temperature sensor; 5: Electric heating device; 800: Device for controlling a chiller; 801: Processor; 802: Memory; 803: Communication interface; 804: Bus; 900: Refrigeration device. Detailed implementation manners

[0031] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, sufficient understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner.

[0032] In the specification, claims and above-mentioned drawings of the embodiments of the present disclosure, terms such as "first", "second", etc. are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0033] Unless otherwise specified, the term "plurality" means two or more.

[0034] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0035] The term "and / or" describes the relationship between objects and indicates that there can be three relationships. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0036] The term "corresponding" can refer to an association relationship or a binding relationship. That A corresponds to B means that there is an association relationship or a binding relationship between A and B.

[0037] In the embodiments of the present disclosure, the intelligent household appliance device refers to a household appliance product formed by introducing microprocessor, sensor technology, and network communication technology into household appliance devices, and has the characteristics of intelligent control, intelligent perception, and intelligent application. The operation process of intelligent household appliance devices often depends on the application and processing of modern technologies such as the Internet of Things, the Internet, and electronic chips. For example, an intelligent household appliance device can be connected to an electronic device to realize remote control and management of the intelligent household appliance device by the user.

[0038] In the disclosed embodiments, the terminal device refers to an electronic device with a wireless connection function. The terminal device can be communicatively connected to the intelligent household appliance device as described above by connecting to the Internet, or can also be communicatively connected to the intelligent household appliance device as described above directly through Bluetooth, Wi-Fi, etc. In some embodiments, the terminal device is, for example, a mobile device, a computer, or an in-vehicle device built in a hovering vehicle, etc., or any combination thereof. The mobile device can, for example, include a mobile phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, etc., or any combination thereof, wherein the wearable device includes, for example: a smart watch, a smart bracelet, a pedometer, etc.

[0039] At present, the defrosting method generally adopts timed defrosting or manual button defrosting. Timed defrosting generally considers the conditions of the machine, which will inevitably result in unnecessary defrosting operations and increase additional energy consumption. Manual button defrosting requires the user to defrost in a timely manner, increasing the burden on the user. The existing defrosting schemes cannot truly reflect the frosting degree of the evaporator, and there are significant problems in the judgment accuracy. It is very likely to generate unnecessary defrosting operations, or fail to defrost in a timely manner when the frosting is severe, resulting in a certain lag in the defrosting operation, affecting the operating efficiency of the air conditioner, making the air conditioner unable to always operate under the optimal performance conditions, and affecting the user experience. The related technology discloses a frost detection device, which includes a light-emitting device and a light-receiving device. The frost detection device is circuit-connected to the control component and converts the detected optical signal into an electrical signal and transmits it to the control component. The frost detection device uses frost as an obstacle to the light beam channel. By blocking and refracting the light beam, the intensity of the light is changed, causing the output signal of the light-receiving device to change. It can be applied to aspects such as defrosting control and frost volume control of refrigeration appliances. Detection is performed through the frost detection device, or through dual detection by a pipeline temperature sensor and the frost detection device. This defrosting control method uses the frost detection device to detect the circulation system, can accurately judge whether there is frosting, perform effective defrosting, and improve the heat pump heating efficiency of the air conditioner. Although the related technology improves the accuracy of frost detection to a certain extent by detecting the light intensity. However, in the actual application process, the light intensity detection device may malfunction, causing the refrigeration equipment to be unable to enter defrosting for a long time, affecting the operation of the refrigeration equipment and resulting in a poor user experience.

[0040] Combined with Figure 1 As shown, the embodiments of the present disclosure disclose a refrigeration device, including a heat exchanger, an electric heating device 5 for defrosting the heat exchanger, a light source facing the fins 1 of the heat exchanger, a receiving device 3 for receiving the light rays of the light source 2, and a temperature sensor 4 for detecting the temperature of the heat exchanger. Among them, the light rays emitted by the light source 2 face the fins 1 of the heat exchanger, and the light rays pass through the fins 1 of the heat exchanger and are received by the receiving device 3. The electric heating device 5 and the temperature sensor 4 are both arranged on the fins 1 of the heat exchanger. The refrigeration device further includes a processor, which is electrically connected to the above-mentioned electrical components and is used to control the above-mentioned electrical components to perform actions. Optionally, the refrigeration device in the embodiments of the present disclosure includes a temperature adjustment device for any heat exchanger that may frost. For example, the refrigeration device may be an air conditioner, a refrigerator, or a freezer, etc.

[0041] Figures 2 to 4 It is a schematic diagram of the method for defrosting equipment provided by the embodiments of the present disclosure. Any of the following methods can be executed in the refrigeration device, or can also be executed in a server or a terminal device that is communicatively connected to the refrigeration device. In the embodiments of the present disclosure, the scheme is described with the refrigeration device as the execution subject.

[0042] Based on the structure of the refrigeration equipment described above, as Figure 2 shown, an embodiment of the present disclosure provides a method for defrosting an equipment, including:

[0043] S21, the refrigeration equipment turns on the light source at intervals of a first duration.

[0044] S22, the refrigeration equipment obtains the light transmittance received by the receiving device.

[0045] S23, when the light transmittance received by the receiving device is less than the first threshold or no defrosting operation has been performed for a second duration, the refrigeration equipment performs a defrosting operation.

[0046] Wherein, the light transmittance can be any optical parameter capable of characterizing light transmittance. For example, the light transmittance can be the light-transmitting area of the heat exchanger fins under the illumination of the light source, or the light intensity on the backlight side of the heat exchanger under the illumination of the light source, etc.

[0047] Wherein, the following light detection device refers to the light source and the receiving device.

[0048] Wherein, the first duration can be any duration. For example, 30 min, 1 h, or 1.5 h, etc. Specifically, the first duration can be determined according to parameters associated with the frosting of the refrigeration equipment. Parameters associated with the frosting of the refrigeration equipment include environmental parameters, the operating state of the refrigeration equipment, and / or historical data of the interval duration for performing the defrosting operation, etc. For example, the first duration corresponding to one or more of the above-related parameters is determined by looking up a table, or the first duration corresponding to one or more of the above-related parameters is determined by the setting of developers, etc. The second duration can be any duration greater than the first duration. For example, 36 h, 48 h, or 66 h, etc. Specifically, the second duration can be determined according to the first duration, so that the second duration matches the first duration, avoiding the situation that the forced defrosting cycle is too short and the defrosting is too frequent, or the forced defrosting cycle is too long and the frosting affects the operation of the refrigeration equipment. For example, the second duration corresponding to the first duration is determined by looking up a table, or the second duration corresponding to the first duration is determined by the setting of developers, etc.

[0049] Wherein, the first threshold can be any value. For example, 50% of the light-transmitting area of the heat exchanger fins under standard test conditions, 49% of the light intensity of the heat exchanger fins under standard conditions, etc. Specifically, the refrigeration equipment can determine the first threshold according to parameters associated with the light-transmitting effect. Parameters associated with the light-transmitting effect include the light intensity of the light source, the structure of the evaporator fins, the receiving efficiency of the receiving device, and / or the relative positions of the above components, etc. For example, the first threshold corresponding to one or more of the above-related parameters is determined by looking up a table, or the first threshold corresponding to one or more of the above-related parameters is determined by the setting of developers, etc.

[0050] Using the method for device defrosting provided by the embodiments of the present disclosure, the light source is turned on at intervals of a first duration, and the light transmission amount received by the receiving device is obtained. When the light transmission amount received by the receiving device is less than the first threshold or defrosting operation has not been performed for a second duration, the defrosting operation is performed. While detecting the frost accumulation amount through the light detection device, a forced defrosting cycle of a second duration is also set to control the refrigeration device to forcibly enter defrosting when the light detection device fails and cannot enter defrosting in time. During the process of detecting the frosting situation through the light detection device, the situation where the refrigeration device is unable to enter the defrosting operation for a long time due to the failure of the light detection device is avoided, ensuring the stable operation of the refrigeration device.

[0051] Based on the above structure of the refrigeration device, as Figure 3 shown, the embodiments of the present disclosure provide a method for device defrosting, including:

[0052] S21, the refrigeration device turns on the light source at intervals of a first duration.

[0053] S22, the refrigeration device obtains the light transmission amount received by the receiving device.

[0054] S23, when the light transmission amount received by the receiving device is less than the first threshold or defrosting operation has not been performed for a second duration, the refrigeration device performs the defrosting operation.

[0055] S31, the refrigeration device obtains the temperature of the heat exchanger.

[0056] S32, when the light transmission amount received by the receiving device is greater than the second threshold or the temperature of the heat exchanger is greater than the set temperature, the refrigeration device exits the defrosting operation.

[0057] Wherein, the second threshold can be any value greater than the first threshold. For example, 90% of the light transmission area of the heat exchanger fins under standard test conditions, 89% of the light intensity of the heat exchanger fins under standard conditions, etc. The refrigeration device can specifically determine the second threshold according to the parameters associated with the light transmission effect. The parameters associated with the light transmission effect include the light intensity of the light source, the structure of the evaporator fins, the receiving efficiency of the receiving device, and / or the relative positions of the above components, etc. For example, the second threshold corresponding to one or more of the above-related parameters is determined by looking up a table, or the second threshold corresponding to one or more of the above-related parameters is determined by the setting of the developer, etc.

[0058] Among them, the set temperature can be any temperature value. For example, the set temperature can be 12°C or 13°C, etc. Specifically, the refrigeration device can determine the set temperature according to the parameters associated with the temperature of the heat exchanger. The parameters associated with the temperature of the heat exchanger include the ambient temperature and / or the operating state of the refrigeration device, etc. For example, the set temperature corresponding to one or more of the above-related parameters is determined by looking up a table, or the set temperature corresponding to one or more of the above-related parameters is determined by a finite number of experiments, etc.

[0059] Using the method for defrosting equipment provided by the embodiments of the present disclosure, the refrigeration device obtains the temperature of the heat exchanger. When the light transmission amount received by the receiving device is greater than the second threshold or the temperature of the heat exchanger is greater than the set temperature, at this time, the light transmission amount received by the receiving device is relatively large, and the temperature of the heat exchanger is relatively high, indicating that the frosting obstacle in the light beam channel between the light source and the receiving device is basically removed, and the temperature of the heat exchanger rises. Therefore, the refrigeration device exits the defrosting operation.

[0060] Based on the structure of the refrigeration device described above, as Figure 4 shown, the embodiments of the present disclosure provide a method for defrosting equipment, including:

[0061] S21, the refrigeration device turns on the light source at intervals of the first time period.

[0062] S22, the refrigeration device obtains the light transmission amount received by the receiving device.

[0063] S23, when the light transmission amount received by the receiving device is less than the first threshold or the defrosting operation has not been performed for the second time period, the refrigeration device performs the defrosting operation.

[0064] S41, when the first determination condition for performing the defrosting operation and the second determination condition for exiting the defrosting operation do not correspond for a continuously set number of times, the refrigeration device determines that the light source, the receiving device, and / or the heat exchanger are faulty.

[0065] Among them, the set number of times can be any value, such as once, twice, or three times, etc. Specifically, it can be determined according to the non-corresponding manner of the first determination condition and the second determination condition. For example, when the first determination condition is to determine to enter the defrosting through the light transmission amount, and the second determination condition is to determine to exit the defrosting through the temperature, the set number of times can be three times; when the first determination condition is to determine to enter the defrosting through the forced defrosting period of the second time period, and the second determination condition is to determine to exit the defrosting through the light transmission amount, the set number of times can be two times or three times, etc. Determining the set number of times according to the non-corresponding manner of the first determination condition and the second determination condition can make the set number of times match the cause of the fault, thereby improving the accuracy of the set number of times, avoiding too many set number of times and being unable to effectively defrost, or too few set number of times and frequent fault reporting.

[0066] When using the method for device defrosting provided by the embodiments of the present disclosure, when the consecutive setting times of the first judgment condition for performing the defrosting operation and the second judgment condition for exiting the defrosting operation do not correspond, at this time, it indicates that the judgment conditions for entering and exiting the defrosting are inconsistent before and after, and it is not based on the same parameter to judge entering or exiting the defrosting operation. For example, when the judgment condition for entering the defrosting operation is that the light transmission amount is small, if the light detection device is normal, the judgment condition for exiting the defrosting operation is that the light transmission amount is large, and then the judgment condition for actually exiting the defrosting operation is that the temperature of the heat exchanger is large, it is more likely that the light detection device is faulty; or, the judgment condition for entering the defrosting operation is the forced defrosting cycle of the second duration. However, the judgment condition for exiting the defrosting operation is that the light transmission amount is large, that is, the light detection is not timely and accurate when entering, and the light detection is more timely and accurate when exiting, which indicates that there may be a problem with the detection part of the light detection device when entering the defrosting operation. Therefore, the refrigeration device can determine that the light source, the receiving device, and / or the heat exchanger are faulty.

[0067] Optionally, the refrigeration device determines whether the first judgment condition and the second judgment condition correspond according to the following method: when the first judgment condition is that the light transmission amount is less than the first threshold value and the second judgment condition is that the light transmission amount is greater than the second threshold value, or when the first judgment condition is that the defrosting operation has not been performed for the second duration and the second judgment condition is that the temperature of the heat exchanger is greater than the set temperature, the refrigeration device determines that the first judgment condition and the second judgment condition correspond.

[0068] In this way, when the first judgment condition is that the light transmission amount is less than the first threshold value, at this time, the refrigeration device enters the defrosting according to the judgment condition of the light transmission amount. If the light detection device is normal, it should also exit the defrosting according to the judgment condition of the light transmission amount. Therefore, when the second judgment condition is that the light transmission amount is greater than the second threshold value, the refrigeration device determines that the first judgment condition and the second judgment condition correspond. In addition, when the first judgment condition is that the defrosting operation has not been performed for the second duration, at this time, the refrigeration device enters the defrosting according to the forced defrosting cycle, rather than according to the light transmission amount, indicating that the light detection device may not be enabled. If the defrosting is exited according to the judgment condition of the light transmission amount, it indicates that the light detection device has been started, but there is a problem when detecting the entry into the defrosting. Therefore, when the second judgment condition is that the temperature of the heat exchanger is greater than the set temperature, the refrigeration device determines that the first judgment condition and the second judgment condition correspond.

[0069] Optionally, after the refrigeration device determines that the light source, the receiving device, and / or the heat exchanger are faulty, it further includes: the refrigeration device determines the cause of the fault according to the first judgment condition and the second judgment condition.

[0070] In this way, when the first judgment condition and the second judgment condition do not correspond, it indicates that the parameters on which the judgment conditions for entering and exiting the defrosting are based do not correspond, that is, it can be determined that some parts of the refrigeration device may be faulty.

[0071] Optionally, the refrigeration device determines the cause of the failure according to the first judgment condition and the second judgment condition, including: when the first judgment condition is that the received light transmission amount is less than the first threshold value and the second judgment condition is that the temperature of the heat exchanger is greater than the set temperature, the refrigeration device determines that the heat exchanger fails; when the first judgment condition is that the defrosting operation has not been performed for the second duration and the second judgment condition is that the light transmission amount is greater than the second threshold value, the refrigeration device determines that the receiving device or the light source fails.

[0072] In this way, when the first judgment condition is that the received light transmission amount is less than the first threshold value and the second judgment condition is that the temperature of the heat exchanger is greater than the set temperature, since the defrosting entry is judged based on the light transmission amount, it indicates that the light detection device is in a normal state. However, when exiting the defrosting, it is judged based on the temperature of the heat exchanger, indicating that the light transmission amount of the heat exchanger fins after defrosting does not meet the condition for exiting the defrosting operation. But at this time, the light detection device is not faulty. Therefore, the refrigeration device can determine that the heat exchanger fails. When the first judgment condition is that the defrosting operation has not been performed for the second duration, and at this time the refrigeration device enters the defrosting according to the forced defrosting cycle, it indicates that the light detection device may not be enabled or is faulty. However, the second judgment condition for the refrigeration device to exit the defrosting is that the light transmission amount is greater than the second threshold value, indicating that the light detection device is enabled and the detection during exit is not faulty. Therefore, the refrigeration device determines that the receiving device or the light source fails, and there may be instability in the receiving device or the light source.

[0073] Optionally, the refrigeration device determines the cause of the failure according to the first judgment condition and the second judgment condition, and further includes: when the first judgment condition is that the defrosting operation has not been performed for the second duration and the defrosting operation still has not exited after continuing for the third duration, the refrigeration device determines that the light source, the receiving device, and the temperature sensor fail.

[0074] Wherein, the third duration can be any value. For example, the third duration can be 3h, or 4h, etc. The refrigeration device can specifically determine the third duration according to the parameters associated with the defrosting operation. The parameters associated with the defrosting operation include the type of the defrosting operation, the intensity of the defrosting operation, and / or the degree of frosting, etc. The type of the defrosting operation includes defrosting by heating with an electric heating device, defrosting by reversing a four-way valve, and / or defrosting by blowing air from a blower to the heat exchanger, etc. The intensity of the defrosting operation can be specifically characterized by the power of the electric heating device, the rotational speed of the blower, etc. The degree of frosting can be determined according to the light transmission amount or light intensity received by the receiving device when entering the defrosting. If entering the defrosting according to the forced defrosting cycle, directly determine the corresponding frost amount corresponding to the forced defrosting cycle according to the preset corresponding relationship, and characterize the degree of frosting by this frost intensity. For example, determine the third duration corresponding to one or more of the above-related parameters by looking up a table, determine the third duration corresponding to one or more of the above-related parameters by means of a finite number of experiments, etc.

[0075] In this way, when the first determination condition is that the defrosting operation has not been performed for the second time period, it indicates that the light detection device is not enabled or has failed. Moreover, after the defrosting operation has been performed for the third time period and the defrosting operation has still not exited, neither the light transmittance condition for exiting the defrosting operation nor the temperature condition for exiting the defrosting operation is satisfied. Therefore, the refrigeration device can determine that the light source, the receiving device, and the temperature sensor have all failed.

[0076] Combined with Figure 5 As shown, an embodiment of the present disclosure provides a device 800 for defrosting a device, including a processor 801 and a memory 802. Optionally, the device may further include a communication interface 803 and a bus 804. Among them, the processor 801, the communication interface 803, and the memory 802 can complete communication with each other through the bus 804. The communication interface 803 can be used for information transmission. The processor 801 can call the logical instructions in the memory 802 to execute the method for defrosting a device in the above embodiment.

[0077] In addition, when the logical instructions in the above-mentioned memory 802 are implemented in the form of a software functional unit and sold or used as an independent product, they can be stored in a computer-readable storage medium.

[0078] The memory 802, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 801 executes functional applications and data processing by running the program instructions / modules stored in the memory 802, that is, implements the method for defrosting a device in the above embodiment.

[0079] The memory 802 may include a storage program area and a storage data area. Among them, the storage program area can store an operating system and application programs required for at least one function; the storage data area can store data created according to the use of the terminal device, etc. In addition, the memory 802 may include a high-speed random access memory and may also include a non-volatile memory.

[0080] Combined with Figure 6 As shown, an embodiment of the present disclosure provides a refrigeration device 900, including: a refrigeration device body, and the above-mentioned device 800 for defrosting a device. The device 800 for defrosting a device is installed on the refrigeration device body. The installation relationship described here is not limited to being placed inside the refrigeration device, but also includes installation connections with other components of the refrigeration device, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art can understand that the device 800 for defrosting a device can be adapted to a feasible refrigeration device main body, and further implement other feasible embodiments.

[0081] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are configured to execute the above-described method for defrosting a device.

[0082] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc, and other media that can store program codes.

[0083] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process, and other changes. Embodiments merely represent possible variations. Unless explicitly required, separate components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. Moreover, the terms used in this application are only for describing embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations including one or more of the associated listed items. Additionally, when used in this application, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups thereof. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, or device including the element. In this document, what each embodiment focuses on may be the differences from other embodiments, and the same or similar parts among the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method parts disclosed in the embodiments, the relevant parts may refer to the description of the method parts.

[0084] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner may depend on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The skilled person can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0085] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, the functional units in the embodiments of the present disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0086] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a portion of code, which contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks may occur in a different order than noted in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. Each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for defrosting a device, characterized in that, Applied to a refrigeration device, the refrigeration device includes a heat exchanger, a light source facing the fins of the heat exchanger, and a receiving device for receiving the light rays of the light source; the method includes: Turn on the light source at intervals of a first time period; Obtain the light transmission amount received by the receiving device; When the light transmission amount received by the receiving device is less than a first threshold value or defrosting operation has not been performed for a second time period, perform a defrosting operation.

2. The method according to claim 1, wherein After obtaining the light transmission amount received by the receiving device, it further includes: Obtain the temperature of the heat exchanger; When the light transmission amount received by the receiving device is greater than a second threshold value or the temperature of the heat exchanger is greater than a set temperature, exit the defrosting operation.

3. The method according to claim 1 or 2, characterized in that, It further includes: When the first determination condition for performing the defrosting operation and the second determination condition for exiting the defrosting operation do not correspond for a continuously set number of times, determine that there is a fault in the light source, the receiving device, and / or the heat exchanger.

4. The method according to claim 3, wherein Judge whether the first determination condition and the second determination condition correspond according to the following method: When the first determination condition is that the light transmission amount is less than the first threshold value and the second determination condition is that the light transmission amount is greater than the second threshold value, or when the first determination condition is that the defrosting operation has not been performed for the second time period and the second determination condition is that the temperature of the heat exchanger is greater than the set temperature, determine that the first determination condition and the second determination condition correspond.

5. The method according to claim 3, wherein After determining that there is a fault in the light source, the receiving device, and / or the heat exchanger, it further includes: Determine the cause of the fault according to the first determination condition and the second determination condition.

6. The method according to claim 5, wherein Determine the cause of the fault according to the first determination condition and the second determination condition, including: When the first determination condition is that the received light transmission amount is less than the first threshold value and the second determination condition is that the temperature of the heat exchanger is greater than the set temperature, determine that there is a fault in the heat exchanger; When the first determination condition is that the defrosting operation has not been performed for the second time period and the second determination condition is that the light transmission amount is greater than the second threshold value, determine that there is a fault in the receiving device or the light source.

7. The method according to claim 5, wherein The refrigeration device includes a temperature sensor for detecting the temperature of the heat exchanger; determining the cause of the fault according to the first determination condition and the second determination condition, it further includes: When the first determination condition is that the defrosting operation has not been performed for the second time period and the defrosting operation still has not exited after continuing for a third time period, determine that there is a fault in the light source, the receiving device, and the temperature sensor.

8. A device for defrosting an apparatus, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the method for defrosting the device according to any one of claims 1 to 7 when running the program instructions.

9. A refrigeration device, characterized in that, It includes: A refrigeration device body, including a heat exchanger, a light source facing the fins of the heat exchanger, and a receiving device for receiving the light rays of the light source; And, The device for defrosting the device according to claim 8, which is installed on the refrigeration device body.

10. A computer-readable storage medium storing program instructions, characterized in that, When the program instructions are running, they are used to cause the computer to execute the method for defrosting the device according to any one of claims 1 to 7.

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