Filter screen dust removal method, device and refrigeration equipment

Abstract

The application discloses a filter screen dust removal method and device and refrigeration equipment. The method comprises the following steps: detecting the fan wind speed and the compressor shell temperature; if the fan wind speed and the compressor shell temperature meet the preset condition, it is determined that the filter screen is in a dust removal state; after the compressor and the fan are both stopped, the filter screen dust removal device is controlled to perform a dust removal operation; during the dust removal operation, the weight change of a dust collection box is detected; the dust removal effect of the filter screen is judged according to the weight change of the dust collection box, and the running power of the filter screen dust removal device is adjusted according to the dust removal effect of the filter screen. According to the fan wind speed and the compressor shell temperature, whether the filter screen reaches the dust removal state is judged, the filter screen is automatically dusted, the dust removal effect of the filter screen is detected during the dust removal process, and adaptive adjustment is made to ensure better dust removal effect. The purpose of automatic cleaning of the filter screen is achieved, the manual cleaning cost is reduced, and the dust removal effect can be ensured during the filter screen dust removal process.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and more specifically, to a filter dust removal method, apparatus, and refrigeration equipment. Background Technology

[0002] To prevent impurities in the air from accumulating on the cooling fan, a filter is usually added to the front of the electrical compartment of the cryogenic storage box to filter the air. As the unit ages, the filter will accumulate a lot of dust, which will reduce the cooling efficiency of the fan and even affect the normal operation of the refrigeration system.

[0003] For cooling fan filters, the current common method for cleaning filters is to manually remove the filters periodically for manual cleaning. This not only wastes labor costs, but manual cleaning may also be too frequent or not timely.

[0004] There is currently no effective solution to the problem of poor dust removal performance of existing filters. Summary of the Invention

[0005] This invention provides a filter dust removal method, apparatus, and refrigeration equipment to solve the problem of poor filter dust removal effect in the prior art.

[0006] To address the aforementioned technical problems, this invention provides a filter dust removal method, comprising: detecting fan speed and compressor housing temperature; determining the filter to be in a dust removal state if the fan speed and compressor housing temperature meet preset conditions; controlling the filter dust removal device to perform dust removal operation after both the compressor and fan are stopped; detecting changes in the weight of the dust collection box during the dust removal operation; judging the filter dust removal effect based on the changes in the weight of the dust collection box; and adjusting the operating power of the filter dust removal device based on the filter dust removal effect.

[0007] Furthermore, the fan speed and the compressor housing temperature meet preset conditions, including: the fan speed is less than or equal to a preset speed threshold; the compressor housing temperature is greater than or equal to a preset temperature threshold, and continues to rise within a first preset time period.

[0008] Furthermore, after determining that the filter screen is in a state requiring dust removal, the method also includes: controlling the compressor to operate at a reduced frequency.

[0009] Furthermore, during the dust removal operation, the method also includes: determining whether the weight of the dust collection box exceeds a preset weight threshold; if so, determining that the dust collection box is full and sending a prompt to clean it.

[0010] Furthermore, judging the dust removal effect of the filter screen based on the change in the weight of the dust collection box, and adjusting the operating power of the filter screen dust removal device based on the dust removal effect, includes: calculating the rate of change of the weight of the dust collection box during the increase process; judging the dust removal effect of the filter screen based on the rate of change; wherein, the greater the rate of change, the better the dust removal effect of the filter screen.

[0011] Furthermore, adjusting the operating power of the filter dust removal device based on the filter dust removal effect includes: increasing the operating power of the filter dust removal device if the filter dust removal effect does not meet the preset effect; maintaining the operating power of the filter dust removal device if the filter dust removal effect meets the preset effect; wherein, if the rate of change is lower than a preset rate threshold, it indicates that the filter dust removal effect does not meet the preset effect.

[0012] Furthermore, after detecting the change in the weight of the dust collection box, the method further includes: if the weight of the dust collection box does not change within a second preset time period, then determining that the filter screen has switched from the state to the normal state, exiting the dust removal operation, and controlling the compressor to return to the state before performing the dust removal operation.

[0013] Furthermore, detecting the fan speed and compressor casing temperature includes detecting the fan speed and compressor casing temperature when both the compressor and fan are running and the compressor is in the frequency ramp-up phase.

[0014] The present invention also provides a filter dust removal device, wherein the device includes: a detection module for detecting fan speed and compressor housing temperature; a judgment module for determining that the filter is in a state to be dusted when the fan speed and compressor housing temperature meet preset conditions; a dust removal module for controlling the filter dust removal device to perform dust removal operation after both the compressor and fan have stopped; and an adjustment module for detecting changes in the weight of the dust collection box during the dust removal operation; judging the filter dust removal effect based on the changes in the weight of the dust collection box; and adjusting the operating power of the filter dust removal device based on the filter dust removal effect.

[0015] The present invention also provides a refrigeration device, wherein the refrigeration device includes the above-mentioned filter dust removal device.

[0016] Furthermore, the refrigeration equipment is a low-temperature storage box.

[0017] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the method as described above.

[0018] The present invention also provides an electronic device, comprising: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, cause the one or more processors to perform the method as described above.

[0019] By applying the technical solution of this invention, the system determines whether the filter screen has reached the dust removal state based on the fan speed and compressor casing temperature. If the filter screen is in the dust removal state, dust removal is performed after all compressor fans have stopped. During the dust removal process, the filter screen's dust removal effect is monitored and adaptively adjusted to ensure optimal dust removal results. This achieves automatic filter screen cleaning, reduces manual cleaning costs, and ensures effective dust removal during the filter screen cleaning process. Attached Figure Description

[0020] Figure 1 This is a flowchart of a filter dust removal method according to an embodiment of the present invention;

[0021] Figure 2 This is a detailed flowchart of the filter dust removal method according to an embodiment of the present invention;

[0022] Figure 3 This is a structural block diagram of a filter dust removal device according to an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0024] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0025] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0026] It should be understood that although the terms first, second, third, etc., may be used to describe the preset duration in the embodiments of the present invention, these terms should not be limited to. These terms are only used to distinguish preset durations. For example, without departing from the scope of the embodiments of the present invention, the first preset duration may also be referred to as the second preset duration, and similarly, the second preset duration may also be referred to as the first preset duration.

[0027] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0028] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0029] The optional embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0030] Example 1

[0031] When the cooling fan is running, air is drawn into the electrical compartment through a filter. Taking a low-temperature storage box as an example, the electrical compartment contains electrical components such as a fan, compressor, and circuit boards. A filter is located at the front end of the electrical compartment, more specifically, at the fan inlet. Over time, a large amount of dust accumulates on the filter. Therefore, this invention proposes a filter dust removal scheme. The system determines whether the filter is ready for dust removal by measuring the fan speed and compressor casing temperature. If the filter is ready, dust removal is performed after all compressor fans have stopped. During the dust removal process, the filter's dust removal effectiveness is monitored and adjustments are made accordingly to ensure optimal results. This achieves precise self-cleaning of the filter.

[0032] According to an embodiment of the present invention, a method embodiment for dust removal by filter screen is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0033] Figure 1 This is a flowchart of a filter dust removal method according to an embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps:

[0034] Step S101: Detect the fan speed and compressor casing temperature;

[0035] Step S102: If the fan speed and compressor casing temperature meet the preset conditions, then the filter screen is determined to be in a state to be cleaned.

[0036] Step S103: After both the compressor and the fan have stopped, control the filter dust removal device to perform dust removal operation;

[0037] Step S104: During the dust removal operation, detect the change in the weight of the dust collection box; judge the dust removal effect of the filter screen based on the change in the weight of the dust collection box, and adjust the operating power of the filter screen dust removal device based on the dust removal effect of the filter screen.

[0038] This embodiment determines whether the filter screen is ready for dust removal based on the fan speed and compressor casing temperature. If the filter screen is ready for dust removal, dust removal is performed after all compressor fans have stopped. This achieves automatic filter screen cleaning and also allows for monitoring and adaptive adjustments during the dust removal process to ensure optimal dust removal results. It reduces manual cleaning costs and improves dust removal efficiency.

[0039] In this embodiment, when determining whether the filter has reached the dust-requiring state based on the fan speed and compressor housing temperature, the fan speed and compressor housing temperature are detected under the premise that both the compressor and the fan are running. If the filter is dusty, the fan speed will be affected, and the compressor housing temperature will also rise. Therefore, this embodiment provides a preferred implementation method, namely, the fan speed and compressor housing temperature meet preset conditions, including: the fan speed is less than or equal to a preset speed threshold; the compressor housing temperature is greater than or equal to a preset temperature threshold, and continues to rise within a first preset time period. During the frequency ramp-up phase after the compressor starts, the change in compressor housing temperature will be more obvious (the temperature will be higher and more obvious). Therefore, furthermore, the fan speed and compressor housing temperature can be detected when both the compressor and the fan are running, and the compressor is in the frequency ramp-up phase. Based on the above preferred implementation method, the dust accumulation on the filter can be accurately and efficiently identified, and when the dust accumulation on the filter reaches a certain level, it can be determined that the filter needs to be cleaned, and the filter is marked as being in the dust-requiring state.

[0040] It should be noted that after determining that the filter screen is in a state of needing dust removal, in order to prevent the compressor casing temperature from rising further due to dust accumulation on the filter screen, the compressor is controlled to operate at a reduced frequency, thereby preventing the compressor temperature from becoming too high and ensuring the stable and safe operation of the compressor.

[0041] After marking the filter screen as ready for dust removal, the dust removal operation will not be performed immediately. Dust removal can only be performed when the compressor and fan are stopped. Therefore, the filter screen dust removal device should only be activated after both the compressor and fan have stopped. Generally, after the compressor stops, the fan will continue to run for a set period (e.g., 20 minutes) before shutting down and then the dust removal operation is performed. This ensures the safety and effectiveness of the dust removal operation. The filter screen dust removal device can be an ultrasonic dust removal device, which uses vibration to shake off the dust from the filter screen.

[0042] During dust removal operations, the weight and weight changes of the dust collection box can be monitored in real time. The weight of the dust collection box indicates the dust removal progress, and the weight change indicates the dust removal effect. During the dust removal operation, it is determined whether the weight of the dust collection box exceeds a preset weight threshold; if so, the dust collection box is considered full, and a cleaning prompt is sent. This ensures timely cleaning of the dust collection box and avoids affecting the dust removal effect due to a full dust collection box. After cleaning the dust collection box, the filter can be marked as returned to normal, and the dust accumulation level on the filter can be re-tested.

[0043] When judging the dust removal effect of the filter based on the change in the weight of the dust collection box, and adjusting the operating power of the filter dust removal device based on the dust removal effect, the following preferred implementation method can be used: calculate the rate of change of the weight of the dust collection box during the increase process; judge the dust removal effect of the filter based on the rate of change; wherein, the greater the rate of change, the better the dust removal effect of the filter. Based on this, the rate of change of the weight of the dust collection box can characterize the dust removal effect of the filter. This embodiment, on the basis of realizing automatic dust removal of the filter, can also control the dust removal effect of the filter in real time during the dust removal process, thereby ensuring the best dust removal effect.

[0044] If the dust removal effect of the filter screen does not meet the preset effect, the operating power of the filter screen dust removal device is increased; if the dust removal effect meets the preset effect, the operating power of the filter screen dust removal device is maintained. Wherein, a change rate lower than the preset rate threshold indicates that the dust removal effect does not meet the preset effect. Based on the above preferred embodiment, when the dust removal effect is poor, the operating power of the filter screen dust removal device is increased, thereby further improving the dust removal speed and ensuring the dust removal effect. It should be noted that during the dust removal operation, the rate of change of filter screen weight is relatively fast in the initial dust removal time stage. As dust is shaken off the filter screen, the rate of change of filter screen weight in the next time stage decreases compared to the previous time stage, and the rate of change of filter screen weight in the next time stage is even lower. Therefore, when setting the preset rate threshold, the entire dust removal operation period can be divided into multiple time stages, each time stage corresponding to a preset rate threshold, with the preset rate threshold of the later time stage being lower than the preset rate threshold of the previous time stage. This allows for clearer and more precise control of the dust removal effect at different time stages throughout the entire dust removal operation.

[0045] During the dust removal operation, the weight of the dust collection box and its changes can be monitored in real time. If the weight of the dust collection box does not change within a second preset time period, the filter screen is switched from the state to the normal state, the dust removal operation is exited, and the compressor is controlled to return to the state before the dust removal operation. If the weight of the dust collection box does not change within a certain time period, it indicates that the dust on the filter screen has been shaken off, the dust removal is complete, and the dust removal operation can be exited. Therefore, the above preferred embodiment can be used to characterize the end time of the dust removal operation. In addition, a preset dust removal time period can also be set, starting from the beginning of the dust removal operation, and automatically stopping the dust removal and exiting the dust removal operation when the preset dust removal time period is reached. This clearly defines the execution time of the dust removal operation, facilitating adaptive control.

[0046] Example 2

[0047] Figure 2 This is a detailed flowchart of the filter dust removal method according to an embodiment of the present invention, as follows: Figure 2 As shown, the method includes the following steps:

[0048] Step S201: After the machine is powered on, first determine whether the display panel has sent a dust filter command. If yes, proceed to step S202; otherwise, determine the compressor's operating status and proceed to step S203.

[0049] Step S202: After receiving the dust removal filter instruction from the display panel, set the filter dust removal flag f_clean to 1. After the compressor stops, perform the dust removal operation. Then, proceed to step S203 to determine the compressor's operating status.

[0050] Step S203: To reduce overall machine noise, turn on the ultrasonic vibration device after the compressor stops, and determine whether the compressor has started. If it has started, determine whether the compressor is in the frequency ramp-up stage. If it is, proceed to step S204; otherwise, determine whether the fan is off and proceed to step S211.

[0051] Step S204: In order to reduce the temperature of the electrical box compartment, turn on the air cooler to cool it down, time the fan running time Time, set the fan on flag fan_on to 1, and then execute step S205 to determine whether the compressor is in the frequency increase stage.

[0052] Step S205: In order to measure the maximum temperature of the compressor casing, determine whether the compressor is in the frequency increase stage. If so, measure the fan speed and compressor casing temperature, and proceed to step S206. Otherwise, do not judge the cleanliness of the filter screen, and re-execute the filter screen dust removal method process, and proceed to step S201.

[0053] Step S206: Measure the fan speed S and the compressor casing temperature T for comparison with the set values, then proceed to step S207.

[0054] Step S207: Determine whether the measured value of the fan speed S is less than or equal to the set wind speed threshold S0. If so, it indicates that the wind speed has decreased significantly. Then, determine whether the compressor casing temperature has reached the threshold and proceed to step S208. Otherwise, do not determine the cleanliness of the filter screen, and re-execute the filter screen dust removal method process, proceeding to step S201.

[0055] Step S208: Determine whether the compressor housing temperature T is greater than or equal to the set temperature threshold T0 and continues to rise. If so, it means that the fan cannot meet the cooling requirements of the electrical box compartment, the filter screen is seriously clogged, and further measures need to be taken. Execute step S209 to reduce the frequency of the compressor. Otherwise, do not judge the cleanliness of the filter screen, and re-judge it. Execute step S201.

[0056] Step S209: In order to prevent the compressor from overheating and causing it to shut down, the compressor is run at a reduced speed (frq) according to the target speed (for example, frq can be set to 5Hz). Then, the filter status is set to be ready for dust removal, and step S210 is executed.

[0057] Step S210: If the filter screen is severely clogged, set the filter screen dust removal flag f_clean to 1. When the compressor stops, perform the dust removal operation on the filter screen, then re-evaluate and execute step S201.

[0058] Step S211: Determine if the fan-on flag is 1. If it is, it means that the fan has started and is running. Then, proceed to step S212: Determine if the fan meets the minimum running time. Otherwise, proceed to step S214: Turn off the fan and reset the fan running time to zero.

[0059] Step S212: In order to accelerate the heat dissipation of the cabin, the fan needs to meet the minimum running time. Determine whether the fan running time Time is greater than or equal to the set time Time0 (for example, Time0 can be set to 20 minutes). If yes, it means that the fan can be turned off immediately and step S213 is executed. Otherwise, the fan needs to continue to be turned on and the fan running time needs to be accumulated and step S219 is executed.

[0060] Step S213: Turn off the fan and reset the fan running time Time to zero. Then, proceed to step S214 to determine whether the filter needs dust removal.

[0061] Step S214: Determine if the filter screen dust removal flag f_clean is 1. If it is, it means that the filter screen needs to be cleaned, and proceed to step S215. Otherwise, proceed to step S201 and start the judgment again.

[0062] Step S215: Start the ultrasonic dust removal device and use the shaking action to remove dust from the filter screen. At the same time, open the dust collection box and record the weight M of the dust collection box. Then, proceed to step S216 to determine whether the dust collection box is full.

[0063] Step S216: Determine whether the weight M of the dust collection box is greater than or equal to M0. If so, it means that the dust collection box is full and the user needs to clean it in time. Proceed to step S221. Otherwise, continue to check the dust removal progress and proceed to step S217.

[0064] Step S217: Determine whether the difference of M within the time interval Δt is zero. If it is, it means that the dust removal is complete. Clear the filter screen dust removal flag f_clear to zero, then restore the compressor to the state before dust removal and execute step S218. Otherwise, execute step S201 and start the judgment again.

[0065] Step S218: Clear the filter screen dust removal flag f_clean to zero, close the dust collection box, and then proceed to step S219.

[0066] Step S219: The compressor returns to normal operation and the target speed of the compressor is restored to the state before dust removal. Then, step S201 is executed to start the judgment again.

[0067] Step S220 indicates that the fan has not reached the minimum running time, so the fan remains on and the total fan running time is accumulated. Then, step S201 is executed to start the judgment again.

[0068] Step S221: The dust collection box is full. The user is prompted to clean the dust collection box in time. Then the judgment is restarted and step S201 is executed.

[0069] It should be noted that this embodiment records not only the weight M of the dust collection box but also its weight change. The dust removal effect of the filter is judged based on the weight change, and the operating power of the filter dust removal device is adjusted accordingly. Specifically, this can be achieved through the following preferred implementation: calculating the rate of change of the dust collection box weight during its increase; judging the dust removal effect of the filter based on the rate of change; wherein, the greater the rate of change, the better the dust removal effect. Based on this, the rate of change of the dust collection box weight can characterize the dust removal effect of the filter. This embodiment, while achieving automatic dust removal, can also monitor the dust removal effect of the filter in real time during the dust removal process, thereby ensuring the best dust removal effect.

[0070] If the dust removal effect of the filter screen does not meet the preset effect, the operating power of the filter screen dust removal device is increased; if the dust removal effect meets the preset effect, the operating power of the filter screen dust removal device is maintained. Wherein, a change rate lower than the preset rate threshold indicates that the dust removal effect does not meet the preset effect. Based on the above preferred embodiment, when the dust removal effect is poor, the operating power of the filter screen dust removal device is increased, thereby further improving the dust removal speed and ensuring the dust removal effect. It should be noted that during the dust removal operation, the rate of change of filter screen weight is relatively fast in the initial dust removal time stage. As dust is shaken off the filter screen, the rate of change of filter screen weight in the next time stage decreases compared to the previous time stage, and the rate of change of filter screen weight in the next time stage is even lower. Therefore, when setting the preset rate threshold, the entire dust removal operation period can be divided into multiple time stages, each time stage corresponding to a preset rate threshold, with the preset rate threshold of the later time stage being lower than the preset rate threshold of the previous time stage. This allows for clearer and more precise control of the dust removal effect at different time stages throughout the entire dust removal operation.

[0071] Example 3

[0072] Corresponding to Figure 1 The dust removal method using filters described herein is illustrated in this embodiment, which provides a dust removal device using filters, such as... Figure 3 The diagram shown depicts the structural block of a filter dust removal device, which includes:

[0073] Detection module 10 is used to detect fan speed and compressor casing temperature;

[0074] The judgment module 20 is connected to the detection module 10 and is used to determine that the filter screen is in a state to be cleaned when the fan speed and compressor housing temperature meet the preset conditions.

[0075] The dust removal module 30 is connected to the judgment module 20 and is used to control the filter dust removal device to perform dust removal operation after both the compressor and the fan have stopped.

[0076] The adjustment module 40 is connected to the dust removal module 30 and is used to detect the change in the weight of the dust collection box during the dust removal operation; to judge the dust removal effect of the filter screen based on the change in the weight of the dust collection box, and to adjust the operating power of the filter screen dust removal device based on the dust removal effect of the filter screen.

[0077] The filter dust removal device in this embodiment can achieve the filter dust removal scheme described in the above embodiment. The specific process has been described in detail and will not be repeated here. This embodiment determines whether the filter has reached the dust removal state based on the fan speed and compressor housing temperature. If the filter is in the dust removal state, dust removal is performed after all compressor fans have stopped. This achieves automatic filter cleaning and also allows for monitoring and adaptive adjustments during the dust removal process to ensure optimal dust removal results. It reduces manual cleaning costs and improves dust removal efficiency.

[0078] This embodiment also provides a refrigeration device, which includes the filter dust removal device described above.

[0079] The present invention also provides a refrigeration device, wherein the refrigeration device includes the above-described filter dust removal device. This refrigeration device can be the low-temperature storage box mentioned in the above embodiments, or other refrigeration devices (such as an air conditioner outdoor unit) equipped with a compressor, a cooling fan, and a filter structure, and can also implement the filter dust removal scheme described in the above embodiments.

[0080] Example 4

[0081] This embodiment provides an electronic device for a filter dust removal method. The electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein...

[0082] The memory stores instructions executable by the at least one processor, which are then executed by the at least one processor to enable the at least one processor to: detect the fan speed and compressor housing temperature; determine that the filter screen is in a state requiring dust removal if the fan speed and compressor housing temperature meet preset conditions; control the filter screen dust removal device to perform dust removal operation after both the compressor and fan have stopped; detect changes in the weight of the dust collection box during the dust removal operation; determine the filter screen dust removal effect based on the changes in the weight of the dust collection box; and adjust the operating power of the filter screen dust removal device based on the filter screen dust removal effect.

[0083] Example 5

[0084] This invention provides software for executing the technical solutions described in the above embodiments and preferred embodiments.

[0085] This invention provides a non-volatile computer storage medium storing computer-executable instructions that can execute the filter dust removal method in any of the above method embodiments.

[0086] The aforementioned storage medium stores the aforementioned software, and the storage medium includes, but is not limited to, optical discs, floppy disks, hard disks, and rewritable memory.

[0087] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0088] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0089] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0090] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0091] Furthermore, the functional units in the various embodiments of the present invention 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. The integrated unit can be implemented in hardware or as a software functional unit.

[0092] The above-described product can execute the method provided in the embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the method. Technical details not described in detail in this embodiment can be found in the method provided in the embodiments of the present invention.

[0093] The electronic devices of this invention exist in various forms, including but not limited to:

[0094] (1) Mobile communication devices: These devices are characterized by their mobile communication capabilities and primarily aim to provide voice and data communication. These terminals include: smartphones (e.g., iPhones), multimedia phones, feature phones, and low-end phones, etc.

[0095] (2) Ultra-mobile personal computer devices: These devices fall under the category of personal computers, possessing computing and processing capabilities, and generally also have mobile internet access features. These terminals include PDAs, MIDs, and UMPCs, such as the iPad.

[0096] (3) Portable entertainment devices: These devices can display and play multimedia content. This category includes audio and video players (such as iPods), handheld game consoles, e-book readers, as well as smart toys and portable car navigation devices.

[0097] (4) Server: A device that provides computing services. The components of a server include a processor, hard disk, memory, device bus, etc. Servers are similar to general computer architectures, but because they need to provide highly reliable services, they have higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0098] (5) Other electronic devices with data interaction functions, such as televisions and in-vehicle screens.

[0099] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0100] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for dust removal using a filter screen, characterized in that, The method includes: Detect fan speed and compressor casing temperature; If the fan speed and the compressor housing temperature meet preset conditions, the filter screen is determined to be in a state to be dusted; wherein, the preset conditions include the fan speed being less than or equal to a preset speed threshold; and the compressor housing temperature being greater than or equal to a preset temperature threshold, and continuously increasing within a first preset time period; After both the compressor and fan have stopped, the control filter dust removal device will perform dust removal operation; During the dust removal operation, the weight change of the dust collection box is detected; The dust removal effect of the filter is judged based on the change in the weight of the dust collection box, and the operating power of the filter dust removal device is adjusted according to the dust removal effect. This includes: calculating the rate of change of the weight of the dust collection box during the increase process; judging the dust removal effect of the filter based on the rate of change; wherein, the greater the rate of change, the better the dust removal effect of the filter; if the dust removal effect of the filter does not meet the preset effect, the operating power of the filter dust removal device is increased; if the dust removal effect of the filter meets the preset effect, the operating power of the filter dust removal device is maintained; wherein, if the rate of change is lower than the preset rate threshold, it indicates that the dust removal effect of the filter does not meet the preset effect.

2. The method according to claim 1, characterized in that, After determining that the filter screen is in a state requiring dust removal, the method further includes: Control the compressor to operate at a reduced frequency.

3. The method according to claim 1, characterized in that, During the dust removal operation, the method further includes: Determine if the weight of the dust collection box exceeds a preset weight threshold; If so, it confirms that the dustbin is full and sends a prompt to clean it.

4. The method according to claim 1, characterized in that, After detecting changes in the weight of the dust collection box, the method further includes: If the weight of the dust collection box does not change within a second preset time period, the filter screen is determined to switch from the state to the normal state, the dust removal operation is exited, and the compressor is controlled to return to the state before the dust removal operation was performed.

5. The method according to any one of claims 1 to 4, characterized in that, The detection of fan speed and compressor casing temperature includes: When both the compressor and fan are started, and the compressor is in the frequency ramp-up phase, the fan speed and compressor casing temperature are measured.

6. A filter screen dust removal device, characterized in that, The device includes: The detection module is used to detect the fan speed and compressor casing temperature; The judgment module is used to determine that the filter screen is in a state to be cleaned when the fan speed and the compressor housing temperature meet preset conditions; wherein, the preset conditions include the fan speed being less than or equal to a preset speed threshold; and the compressor housing temperature being greater than or equal to a preset temperature threshold and continuously increasing within a first preset time period; The dust removal module is used to control the filter dust removal device to perform dust removal operations after both the compressor and the fan have stopped. An adjustment module is used to detect changes in the weight of the dust collection box during the dust removal operation; determine the dust removal effect of the filter screen based on the changes in the weight of the dust collection box; and adjust the operating power of the filter screen dust removal device based on the dust removal effect. This includes: calculating the rate of change of the weight of the dust collection box during the increase process; determining the dust removal effect of the filter screen based on the rate of change; wherein, a higher rate of change indicates a better dust removal effect; if the dust removal effect does not meet a preset requirement, increasing the operating power of the filter screen dust removal device; if the dust removal effect meets the preset requirement, maintaining the operating power of the filter screen dust removal device; wherein, if the rate of change is lower than a preset rate threshold, it indicates that the dust removal effect does not meet the preset requirement.

7. A refrigeration device, characterized in that, The refrigeration equipment includes the filter dust removal device as described in claim 6.

8. The refrigeration equipment according to claim 7, characterized in that, The refrigeration equipment is a low-temperature storage box.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1 to 5.

10. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the method as described in any one of claims 1 to 5.

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