Method for preventing laundry processing process time jump and laundry processing equipment

Abstract

This application relates to the field of laundry processing, specifically to a method and equipment for preventing time jumps in the laundry processing process. The method includes acquiring the weight and water absorption data of the laundry to be processed; determining the ease of dehydration of the laundry based on the weight and water absorption data; and adjusting the dehydration parameters and / or drying parameters when the laundry is difficult to dehydrate, thereby reducing the drying time. When the laundry is difficult to dehydrate, it indicates that the pre-drying process is insufficient to reduce the moisture content of the laundry to the target value. Adjusting the dehydration and / or drying parameters reduces the drying time, thus minimizing the difference between the actual drying time and the initially calculated and displayed time. This ensures drying efficiency while preventing user experience degradation due to time jumps or discrepancies between the displayed and actual times.

Description

Technical Field

[0001] This application relates to the field of laundry treatment, and more specifically, to a method and laundry treatment equipment for preventing time jumps in the laundry treatment process. Background Technology

[0002] Washer-dryer combos are common household appliances that combine washing and drying functions. Typically, when processing laundry, a washer-dryer combo involves several processes: water intake, washing, spin-drying, and drying. For ease of use, after the laundry is loaded, the washer-dryer combo calculates the total processing time based on the weight of the laundry and displays it to the user. However, since drying time is related to the moisture content of the laundry, and the spin-drying process determines the moisture content, if the actual spin speed fails to reach the set speed due to factors such as the quantity, material, and type of laundry, the moisture content of the laundry will be significantly increased. This results in the actual drying time being much longer than the calculated time, thus reducing the user experience. Summary of the Invention

[0003] This application provides a method and laundry processing device to prevent time jumps in the laundry processing process, so as to at least solve the technical problem of poor user experience.

[0004] According to a first aspect of the embodiments of this application, a method for preventing time jumps in the laundry processing process is provided, comprising:

[0005] Obtain the weight and water absorption data of the laundry to be washed;

[0006] The ease of dehydration of the laundry to be treated is determined based on the weight and water absorption data.

[0007] When the laundry to be treated is difficult to dehydrate, adjust the dehydration parameters and / or drying parameters to reduce the drying time of the laundry to be treated.

[0008] Optionally, when the laundry to be treated is difficult to dehydrate, adjusting the dehydration parameters and / or drying parameters includes:

[0009] Increase the number of dehydration cycles in the dehydration parameters and change the drying parameters based on the increased number of dehydration cycles to perform secondary dehydration on the laundry during the drying process.

[0010] Optionally, increasing the number of dehydration cycles in the dehydration parameters and changing the drying parameters based on the increased number of dehydration cycles to perform secondary dehydration on the laundry during the drying process includes:

[0011] The target value of the secondary dehydration speed is determined based on the weight data of the laundry to be treated;

[0012] The laundry to be treated is subjected to secondary dehydration according to the target value of the secondary dehydration speed.

[0013] Optionally, increasing the number of dehydration cycles in the dehydration parameters and changing the drying parameters based on the increased number of dehydration cycles to perform secondary dehydration on the laundry during the drying process includes:

[0014] The target value of the secondary dehydration speed is determined based on the weight data of the laundry to be treated;

[0015] The laundry to be treated is subjected to secondary dehydration according to the target value of the secondary dehydration speed.

[0016] Optionally, after performing the first dehydration on the laundry according to the first dehydration threshold, the method further includes:

[0017] Obtain the actual value of the dehydration speed during the first dehydration cycle;

[0018] When the actual value of the first dehydration speed is less than the first dehydration threshold, the target value of the second dehydration speed is reduced.

[0019] Optionally, after obtaining the weight data of the laundry to be washed, the method further includes:

[0020] Calculate the total processing time based on the weight data;

[0021] The method further includes:

[0022] When the laundry to be treated is difficult to dehydrate, the total processing time is not adjusted.

[0023] Optionally, the method further includes:

[0024] When the dehydration difficulty of the laundry to be treated is easy, determine whether the actual value of the dehydration speed during one dehydration process is less than the minimum threshold.

[0025] If so, the extended time data is retrieved from the preset time table based on the actual value of the secondary dehydration speed and the weight data.

[0026] The total processing time is increased based on the extended time data, and the increased total processing time is displayed.

[0027] Optionally, acquiring water absorption data includes:

[0028] Obtain total inflow data;

[0029] The water inflow threshold is retrieved based on the weight data;

[0030] When the total influent volume is less than or equal to the influent volume threshold, the water absorption data indicates that the water absorption is small.

[0031] When the total inflow data is greater than the inflow threshold, the water absorption data is considered to be a large amount of water absorbed.

[0032] Optionally, determining the ease of dehydration of the laundry based on the weight data and water absorption data includes:

[0033] When the weight data is greater than the preset weight threshold and the water absorption data is a small amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be difficult to dehydrate.

[0034] When the weight data is greater than the preset weight threshold and the absorption data is a large amount of water absorbed, the dehydration difficulty of the laundry to be treated is determined to be easy to dehydrate.

[0035] When the weight data is less than or equal to a preset weight threshold, and the water absorption data is a small amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be easy to dehydrate.

[0036] When the weight data is less than or equal to a preset weight threshold, and the water absorption data is a large amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be difficult to dehydrate.

[0037] Optionally, the secondary dehydration is thermal dehydration.

[0038] According to a second aspect of the embodiments of this application, a drying system for laundry is provided, which applies the method described above for preventing time jumps in the laundry processing process. The system includes an inner drum and an outer drum, and a drying air duct formed between the inner drum and the outer drum. The drying air duct includes a first condensing air duct and a second condensing air duct.

[0039] The first condensation duct is formed on the side of the outer cylinder away from the inner cylinder;

[0040] The second condensation duct is formed between the outer cylinder and the inner cylinder.

[0041] According to a third aspect of the embodiments of this application, a laundry processing device is provided, which, when processing laundry, employs the method for preventing time jumps in the laundry processing process described in the first aspect or the drying system described in the second aspect.

[0042] In this embodiment, the laundry is dehydrated before drying to reduce its moisture content. When the laundry is difficult to dehydrate, it indicates that the pre-drying dehydration is insufficient to reduce the moisture content to the target value. In this case, the dehydration and / or drying parameters are adjusted to reduce the drying time, thereby minimizing the difference between the actual drying time and the initially calculated and displayed time. This ensures drying efficiency and prevents the displayed time from fluctuating or deviating from the actual drying time, thus improving the user experience. Attached Figure Description

[0043] Figure 1 This is a main flowchart of a method for preventing time jumps in the laundry processing process in one embodiment.

[0044] Figure 2 This is an overall flowchart of a method for preventing time jumps in the laundry processing process in one embodiment.

[0045] Figure 3 This is a side view of the drying system in one embodiment.

[0046] Figure 4 This is a front view of the drying system in one embodiment.

[0047] Figure 5 This is an overall diagram of the drying system in one embodiment.

[0048] Labeling explanation: 1. Outer cylinder; 2. Inner cylinder; 3. First condenser air duct; 31. First air inlet; 4. Second condenser air duct; 41. Second air outlet; 5. Fan air duct. Detailed Implementation

[0049] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0050] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0051] According to an embodiment of this application, an embodiment of a method for preventing time jumps in the laundry processing process 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.

[0052] Typically, washer-dryers and washing machines are equipped with displays to show the remaining processing time for the laundry, which is usually estimated based on parameters such as the weight of the laundry. For laundry programs that include a drying process, the drying time is highly dependent on the moisture content of the laundry. Therefore, if the laundry becomes unbalanced during the spin-drying process or the spin speed does not reach the target speed, the actual drying time required will be much longer than the estimated processing time. Consequently, most laundry machines will change the remaining time displayed on the screen after the spin-drying cycle to ensure that the displayed time corresponds to the actual required time. However, this time-changing behavior significantly impacts the user experience.

[0053] Based on this, this embodiment provides a method to prevent time jumps in the laundry processing procedure, such as... Figure 1 As shown, the method includes the following steps:

[0054] S101, Obtain the weight and water absorption data of the laundry to be washed.

[0055] In one embodiment, the weight data refers to the weight of the laundry to be treated, specifically the weight value obtained by weighing the laundry before water enters the laundry treatment equipment. The weight data of the laundry to be treated can be obtained through changes in motor power or current, or through sensors; this embodiment does not specifically limit this method.

[0056] In one embodiment, water absorption data refers to the water absorption capacity of the laundry to be treated, specifically whether the laundry absorbs a small amount or a large amount of water. When the laundry absorbs a large amount of water, it indicates that the laundry can absorb a significant amount of water; when the laundry absorbs a small amount of water, it indicates that the laundry can absorb a relatively small amount of water. The amount of water absorbed can be determined experimentally. For example, with the same 2 kg of laundry, pure cotton can absorb 3 kg of water, while fiber can only absorb 1 kg of water. By changing the weight of the laundry, the amount of water absorbed by each weight (e.g., 1 kg, 3 kg, 5 kg), various materials, and mixed materials can be obtained. Finally, the average water absorption of the same weight of laundry from different materials can be obtained. When the absorption is lower than the average, it indicates that the laundry is difficult to absorb water; when the absorption is higher than the average, it indicates that the laundry absorbs a large amount of water.

[0057] S102, determine the ease of dehydration of the laundry to be treated based on the weight data and water absorption data.

[0058] In one embodiment, the ease of dehydration refers to whether the laundry to be treated is easy or difficult to dehydrate. Unlike absorbency data, the ease of dehydration is related to weight data. For example, for lightweight laundry with high absorbency, dehydration is prone to eccentricity, meaning the processing drum of the laundry treatment equipment has difficulty driving the laundry to rotate at high speed. In this case, the ease of dehydration is considered difficult. Conversely, for heavy laundry that absorbs a large amount of water, dehydration is less likely to occur eccentricity, and the processing drum can rotate at high speed. In this case, the ease of dehydration is considered easy.

[0059] S103, when the washing clothes to be treated are difficult to dehydrate, adjust the dehydration parameters and / or drying parameters to reduce the drying time of the washing clothes to be treated.

[0060] In one embodiment, the laundry treatment equipment is configured with dehydration parameters and drying parameters when treating the laundry. The dehydration parameters include, for example, the dehydration stage, the number of dehydration cycles, the duration of each dehydration cycle, and the time interval between adjacent dehydration cycles; the drying parameters include, for example, the drying stage, the number of drying cycles, the duration of each drying cycle, and the drying temperature. Specifically, the dehydration stage refers to when the dehydration process is executed, and similarly, the drying stage refers to when the drying process is executed. The specific determination process is not specifically limited in this embodiment.

[0061] Since the laundry items to be treated are difficult to dehydrate, it is necessary to reduce the drying time so that the actual required drying time is close to the initially estimated drying time. This can be achieved by adjusting the dehydration parameters and / or drying parameters, such as increasing the number of dehydration cycles, extending the duration of each dehydration cycle, or increasing the drying temperature, etc. This embodiment does not specify any particular method.

[0062] Through the above steps, the laundry undergoes a dehydration process before drying to reduce its moisture content. When the laundry is difficult to dehydrate, it indicates that the pre-drying dehydration is insufficient to reduce the moisture content to the target value. In this case, the dehydration and / or drying parameters are adjusted to reduce the drying time. This narrows the difference between the actual drying time and the initially calculated and displayed time, ensuring drying efficiency and preventing discrepancies between the displayed and actual drying time, thus improving the user experience.

[0063] In another embodiment of this application, adjusting the dehydration parameters and / or drying parameters when the laundry to be treated is difficult to dehydrate includes:

[0064] Increase the number of dehydration cycles in the dehydration parameters and change the drying parameters based on the increased number of dehydration cycles to perform secondary dehydration on the laundry during the drying process.

[0065] When processing laundry, the laundry handling equipment sequentially performs drainage, weighing, water intake, washing, dehydration, and drying. The dehydration process performed before drying is called primary dehydration, and the dehydration process performed during drying is called secondary dehydration. It should be noted that primary dehydration does not mean only one dehydration cycle, nor does it necessarily mean the first dehydration cycle; it is simply a name used to distinguish it from secondary dehydration and is not specifically limited. The difference between primary and secondary dehydration is that primary dehydration occurs before drying, while secondary dehydration occurs after drying. This embodiment does not specifically limit the number of dehydration cycles or the dehydration time for primary and secondary dehydration.

[0066] During the second spin-drying process, the laundry has already undergone drying for a period of time and has also been dehydrated once. Therefore, even if the laundry is difficult to dehydrate, it is less likely to become unbalanced during this second spin-drying. In other words, the laundry has already been agitated in the processing drum during the first spin-drying, resulting in a more even distribution within the drum. The second spin-drying process avoids the unbalanced distribution seen in the first spin-drying. With reduced unbalance, the processing drum can more easily rotate the laundry at high speed, lowering its moisture content and significantly shortening the drying time. This ensures that the overall processing time is not prolonged due to the laundry's difficulty in dehydration.

[0067] Through the above, performing secondary dehydration during the drying process helps to further reduce the moisture content of the laundry, ensuring drying efficiency, preventing sudden changes in the time displayed to the user, and improving the user experience. In another embodiment of this application, increasing the number of dehydration cycles in the dehydration parameters and changing the drying parameters based on the increased number of dehydration cycles to perform secondary dehydration on the laundry during the drying process includes:

[0068] S201, determine the target value of the secondary dehydration speed for the secondary dehydration based on the weight data of the laundry to be treated.

[0069] In one embodiment, different weights of laundry require different target spin speeds for the secondary dehydration process. In a specific scenario, the target spin speed is preset and can be obtained by querying the weight data.

[0070] The target speed for secondary dehydration refers to the target speed of the processing tank of the laundry processing equipment when performing secondary dehydration, which corresponds to the actual speed of secondary dehydration.

[0071] S202, the laundry to be treated is subjected to secondary dehydration according to the target value of the secondary dehydration speed.

[0072] In one embodiment, after obtaining the target value of the secondary dehydration speed, the motor of the laundry processing equipment can be started and the motor can drive the processing drum to rotate. By controlling the current or power of the motor, the speed of the processing drum can be made to approach the target value of the secondary dehydration speed. When the speed of the processing drum reaches the target value of the secondary dehydration speed, the motor can be kept running at this time, so that the actual value of the secondary dehydration speed reaches the target value of the secondary dehydration speed.

[0073] Through the above steps, the target spin speed for secondary dehydration varies depending on the weight of the laundry, which helps to improve the reduction of moisture content in the laundry during secondary dehydration, thereby shortening the drying time and improving the user experience.

[0074] In another embodiment of this application, when the laundry to be treated is difficult to dehydrate, the method further includes:

[0075] S301, reduce the set value of the dehydration speed for the first dehydration step to obtain the first dehydration threshold.

[0076] In one embodiment, each spin cycle corresponds to a preset spin speed setting. Different weights of laundry require different spin speed settings. For example, for laundry weighing 5 kg or more, the spin speed setting can be between 800-1200 rpm; for laundry weighing less than 5 kg, the setting can be between 600-800 rpm. The specific setting depends on the operating requirements of the laundry processing equipment, and this embodiment does not impose any specific limitations.

[0077] After reducing the dehydration speed setting value once, the first dehydration threshold can be obtained. The reduction can be a preset amount, such as a reduction of 200 prm or 50 prm each time; or it can be a reduction to a preset target amount, such as a direct reduction to 500 prm. This embodiment does not specifically limit this.

[0078] S302, the laundry to be treated is dehydrated once according to the first dehydration threshold.

[0079] In other words, the motor is controlled with the goal of increasing the rotation speed of the processing tank to the first dehydration threshold.

[0080] Through the above steps, for laundry items that are difficult to dehydrate, the spin speed setting is reduced before the first spin cycle to obtain a first dehydration threshold. Because the first dehydration threshold is less than the first spin speed setting, the eccentricity of the laundry items in the processing drum is reduced, making it easier for the drum to reach the first dehydration threshold speed, thus reducing the moisture content of the laundry items, improving drying efficiency, and ultimately enhancing the user experience.

[0081] In another embodiment of this application, after the first dehydration step is performed on the laundry to be treated according to the first dehydration threshold, the method further includes:

[0082] S401, Obtain the actual value of the dehydration speed for the first dehydration cycle.

[0083] In one embodiment, the actual rotation speed of a single dehydration cycle refers to the actual rotation speed of the processing tank during a single dehydration process. This can be determined by the motor power or by a sensor. This embodiment does not impose any specific limitations on this.

[0084] S402, when the actual value of the first dehydration speed is less than the first dehydration threshold, the target value of the second dehydration speed is reduced.

[0085] In one embodiment, if the actual value of the first spin speed is still less than the reduced first spin speed setting value, it proves that the eccentricity of the laundry inside the treatment drum is large. In this case, the target value of the second spin speed is reduced so that the laundry can be more easily rotated during the second spin, and the laundry rotates at a lower speed inside the treatment drum, gradually reducing the eccentricity, so that the motor can drive the treatment drum to rotate at a speed closer to the reduced second spin speed target value.

[0086] The above steps ensure that the laundry can rotate with the treatment drum at the reduced target speed for the second spin-drying process, minimizing the moisture content of the laundry, ensuring drying efficiency, and improving the user experience.

[0087] In another embodiment of this application, after obtaining the weight data of the laundry to be treated, the method further includes:

[0088] The total processing time is calculated based on the weight data.

[0089] In one embodiment, for a certain weight of laundry to be treated, the water intake time, washing time, and spin-drying time are all relatively fixed. Similarly, under ideal conditions, that is, ignoring the possibility of the laundry being eccentric in the treatment tub, the drying time is also relatively fixed. Therefore, once the weight data of the laundry to be treated is known, the total treatment time can be determined.

[0090] In another embodiment of this application, the method further includes:

[0091] When the laundry to be treated is difficult to dehydrate, the total processing time is not adjusted.

[0092] It should be noted that for laundry items that are difficult to dehydrate, the moisture content is high because they were not fully dehydrated before drying. This results in drying times that can be extended by several minutes to several hours. The initially calculated total processing time will be shorter than the actual processing time. Some laundry processing equipment will adjust the total processing time accordingly; for example, if the initial calculated total processing time is 40 minutes, it might be increased to 150 minutes due to the extended drying time. This would mean the user would have to wait twice or even several times longer, significantly reducing the user experience. In this embodiment, a second dehydration process is performed on the difficult-to-dehydrate laundry items. Therefore, the moisture content of the laundry items decreases during the second dehydration, shortening the drying time and bringing the actual processing time closer to the total processing time, thus ensuring a better user experience.

[0093] In another embodiment of this application, the method further includes:

[0094] When the dehydration difficulty of the laundry to be treated is easy, determine whether the actual value of the dehydration speed of the first dehydration is less than the minimum threshold.

[0095] If so, the extended time data is retrieved from the preset time table based on the actual value of the secondary dehydration speed and the weight data.

[0096] The total processing time is increased based on the extended time data, and the increased total processing time is displayed.

[0097] In one embodiment, the minimum threshold is a preset value, and different minimum thresholds correspond to different weights of laundry. For example, for laundry weighing more than 5 kg, the minimum threshold is between 600-800 prm, and for laundry weighing less than 5 kg, the minimum threshold is between 400-600 prm. The specific value is determined according to the actual situation, and this embodiment does not impose a specific limitation on it.

[0098] Since the laundry is easy to dehydrate, it indicates that it is unlikely to become eccentric during the first spin cycle, meaning the spin speed of the processing drum can reach the set spin speed for the first spin cycle. However, the actual spin speed for the first spin cycle is lower than the minimum threshold, indicating that the actual spin speed is too low, possibly due to a malfunction in the laundry processing equipment, the user adding new laundry to the processing drum midway through the process, or other similar reasons. In this case, it means the moisture content of the laundry is not at the ideal level after the first spin cycle, i.e., it is too high. To shorten the drying time, a second spin cycle is performed, and an extension time is retrieved based on the actual spin speed of the second spin cycle and weight data. The total processing time is then adjusted and displayed.

[0099] On the one hand, when the processing drum speed is low during the first dehydration cycle, a second dehydration cycle can be performed to shorten the drying time, improve drying efficiency, and ensure user experience. On the other hand, since a second dehydration cycle is performed, the extended time should not be too large. Even if the total processing time is increased, users will not have to wait too long, which helps to ensure user experience.

[0100] In another embodiment of this application, if the actual dehydration speed of a single dehydration cycle is less than a minimum threshold, extended time data is retrieved from a preset time table based on the actual dehydration speed. The extended time data is then added to the total processing time to obtain the increased total processing time, which is then displayed.

[0101] By following the steps above, secondary dehydration is avoided, which helps save power. The increased total processing time is displayed for the user's convenience.

[0102] In another embodiment of this application, after obtaining the weight data of the laundry to be treated, the method further includes:

[0103] S701, obtain total influent data.

[0104] In one embodiment, the total influent volume data can be obtained by a flow meter or by weight detection; this embodiment does not specifically limit the data in this way.

[0105] S702, retrieve the water inflow threshold based on the weight data.

[0106] In one embodiment, different weights of laundry to be treated correspond to water intake thresholds, wherein the water intake thresholds are preset values.

[0107] When the total influent volume is less than or equal to the influent volume threshold, the water absorption data indicates that the water absorption is small.

[0108] When the total inflow data is greater than the inflow threshold, the water absorption data is considered to be a large amount of water absorbed.

[0109] In another embodiment of this application, determining the ease of dehydration of the laundry based on the weight data and water absorption data includes:

[0110] When the weight data is greater than the preset weight threshold and the water absorption data is a small amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be difficult to dehydrate.

[0111] When the weight data is greater than the preset weight threshold and the absorption data is a large amount of water absorbed, the dehydration difficulty of the laundry to be treated is determined to be easy to dehydrate.

[0112] When the weight data is less than or equal to a preset weight threshold, and the water absorption data is a small amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be easy to dehydrate.

[0113] When the weight data is less than or equal to a preset weight threshold, and the water absorption data is a large amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be difficult to dehydrate.

[0114] In another embodiment of this application, the secondary dehydration is thermal dehydration.

[0115] For ease of understanding, Figure 2 As shown, taking a washing machine as an example, this paper explains a method to prevent the washing process from jumping.

[0116] After the washing machine starts, it drains water.

[0117] The laundry is weighed and its weight is recorded in the treatment tank. Water usage can be measured in various ways, such as by weight or temperature; the flow meter in this flowchart is the simplest method.

[0118] The estimated running time, or total processing time, is displayed based on the weighing value. A "time correction in progress" message is also displayed.

[0119] The machine then runs until the water replenishment stage ends. During this stage, the washing machine's water intake is determined by a level sensor detecting the water level inside the drum. For laundry of the same weight, the water level inside the drum is consistent. However, because laundry absorbs water differently, the total amount of water entering the drum can vary even at the same level. When the water level is reached for the first time, because the laundry may not be fully saturated, water needs to be added while the drum continues to rotate. This process is called water replenishment. Normally, the washing machine takes about one minute to fill with water; for small loads, water replenishment takes less than 10 seconds.

[0120] The system calculates the water intake volume (L) and then categorizes the laundry based on its weight, determining whether it's a small amount, a medium amount, or a large amount. This categorization can be achieved by setting a threshold value; for example, items weighing more than 5 kg are considered medium or large amounts, while items weighing 5 kg or less are considered small amounts. The threshold value can be set according to the washing machine's specifications; for instance, a 10 kg washing machine might have a threshold of 3 kg, and a 5 kg washing machine might have a threshold of 1 kg.

[0121] For medium or large loads of laundry, determine whether the water intake L is less than or equal to L*+k. Here, L* is the water intake threshold, which varies with the weight of the laundry. K is a coefficient; if the water intake L is less than or equal to L*+K, the laundry is considered to have absorbed little water, meaning the water absorption data is low; conversely, if L is greater than or equal to L*+K, the laundry is considered to have absorbed a large amount of water.

[0122] For items with a high weight but water absorption less than the water inlet threshold, they are judged as lightly wet laundry or laundry that does not easily absorb water. In other words, the laundry is difficult to dehydrate.

[0123] For lightweight, highly absorbent items that are prone to significant eccentricity in the laundry, they are also considered difficult to dehydrate.

[0124] For laundry items that are difficult to dehydrate, it is determined that the spin speed before drying is not likely to reach the originally set spin speed. In other words, during a single spin cycle, the actual spin speed is unlikely to reach the set spin speed value.

[0125] Reduce the spin speed setting for the first spin cycle, then perform another spin cycle. Check if the actual spin speed reaches the reduced setting (the first spin threshold). If it does, the washing machine is operating normally. Do not adjust the time after the second spin cycle (after drying and hot spin), and continue running until the end. If not, do not adjust the time, reduce the set spin speed for the second spin cycle, and continue running until the end or report a fault.

[0126] For laundry items with a high weight and high water absorption, it indicates that the water absorption is normal and the item is easy to dehydrate.

[0127] For laundry items with low weight and low water absorption, the condition indicating ease of dehydration is considered easy to dehydrate.

[0128] For laundry items that are easy to dehydrate, perform a single dehydration and determine whether the spin speed of the pre-drying dehydration (single dehydration) is less than or equal to the minimum threshold.

[0129] If so, and if there is thermal dehydration, which means there is secondary dehydration, adjust according to the thermal dehydration speed and weighing value. If there is no thermal dehydration, adjust according to the dehydration value before drying.

[0130] If not, continue the subsequent drying process normally without adjusting the time until the operation is completed.

[0131] Note 4:

[0132] Normally, a washing machine determines its water intake by detecting the water level inside the drum using a level sensor. For laundry of the same weight, the water level inside the drum is consistent. However, because laundry absorbs water differently, the total amount of water entering the drum can vary even at the same level. When the water level is reached for the first time, the laundry may not be fully saturated, so water needs to be added while the drum rotates. This process is called water replenishment. Normally, filling a washing machine takes about one minute; for small loads, water replenishment takes less than 10 seconds.

[0133] Note 5:

[0134] Many washing machines on the market have flow meters that can directly display the water intake. Alternatively, the water intake can be determined by weight detection or other methods (there are many), which will not be elaborated on here.

[0135] Note 6:

[0136] L* is the threshold value, which varies with the weight of the laundry. It is recommended to use a standard (Chinese or European) load measurement for pure cotton to obtain a "laundry weight - water intake" curve as a benchmark. K is a coefficient. A water intake less than L* + K indicates that the laundry has not absorbed much water.

[0137] Note 7:

[0138] Although this process module is designed for laundry items that are theoretically easy to spin-dry, and the time should not be adjusted, adding laundry midway through the wash cycle (changing the weight), improper leveling of the washer-dryer's feet, or even damage to the entire machine can all lead to unsuccessful spin-drying or failure to reach the preset spin speed. The minimum threshold refers to the minimum spin speed required to dry laundry within a specified time after determining its weight. For light loads, which are easier to dry, and for drum washing machines, the items that are difficult to spin-dry are often small quantities of laundry, the minimum threshold should be 400 rpm to 600 rpm, using a Gree 10kg washer-dryer as an example. If a subsequent heat spin cycle is used, the preset heat spin speed should be 600 rpm to 800 rpm. For medium or large loads of laundry, which are relatively easy to spin-dry, a minimum threshold of 600 rpm to 800 rpm is preferable. If a subsequent heat spin cycle is used, the preset heat spin speed should be 800 rpm to 1200 rpm. The minimum threshold is not a set value; the preset dehydration value should be greater than or equal to the minimum threshold.

[0139] Note 8:

[0140] Lightweight laundry with low water absorption means it's less prone to uneven drying, making it easier to dehydrate. Pre-drying dehydration and heat drying both easily reach the preset speed. In other words, the initial moisture content of the laundry is fixed. Because the dehumidification efficiency is constant, the total drying time can be predicted at the very beginning of the wash cycle, so the displayed time only needs to be adjusted once at the start.

[0141] Note 9:

[0142] Two scenarios are considered as difficulty reaching the preset spin speed during washing: First, the garment weighs light but absorbs a lot of water, such as cotton baby clothes. Second, the garment weighs heavily but absorbs little water. In this case, there are two possibilities: one is that the garment material itself does not absorb water or absorbs little water, such as rubber materials, quick-drying items, toys, shoes, etc.; the other possibility is that the garment placed in the washer-dryer is already wet. Besides the case of garments already being wet, the other scenarios are due to the significant eccentricity that occurs during the spin-drying process, affecting the spin speed.

[0143] Note 10:

[0144] The spin-drying setting here is lowered, and the value is the same as the minimum threshold in Note 7. The reason is the same: for a small amount of laundry, the preset spin speed is 400 rpm to 600 rpm, and for a medium to large amount of laundry, it is 600 rpm to 800 rpm.

[0145] Note 11:

[0146] If the already reduced spin speed setting is reached, the program will continue running. If there is a hot drying cycle, no time adjustment will be made; the preset spin speed for the hot drying cycle will remain unchanged and will not be reduced. This may result in the drying cycle ending prematurely, meaning the laundry is already dry and the program will automatically stop. When the program stops, the countdown on the display panel will not have finished.

[0147] Note 12:

[0148] If the reduced spin speed still cannot achieve the desired result, and no time jump occurs, then the detected laundry is too eccentric, to the point that it cannot be spun dry, or can only be spun at a very low speed. This situation is extremely rare. It is usually caused by a single laundry item becoming knotted, a toy being washed and dried, or a malfunction of the entire machine.

[0149] Note 13:

[0150] The items are categorized based on their weight after weighing. The first adjustment time is then displayed. From the start of the program to the display of the adjustment time, the total time is 1.5 to 3 minutes. This involves the following processes: drainage, weighing, water intake, and water replenishment. Generally, depending on the manufacturer, drainage takes 0.1 to 1 minute, weighing takes 3 seconds to 1 minute, water intake takes about 1 minute, and the time and frequency of water replenishment vary greatly among manufacturers. Here, we use Gree's method: a small amount of laundry takes approximately 1 minute, while a larger amount takes approximately 1 to 2 minutes.

[0151] This application also provides a drying system, such as... Figure 3-5As shown, the system using the above-described method for preventing time jumps in the laundry processing process includes an inner drum 2 and an outer drum 1, as well as a drying air duct formed between the inner drum 2 and the outer drum 1. The drying air duct includes a first condensing air duct 3 and a second condensing air duct 4.

[0152] The first condensation duct 3 is formed on the side of the outer cylinder 1 away from the inner cylinder 2;

[0153] The second condensation duct 4 is formed between the outer cylinder 1 and the inner cylinder 2.

[0154] Specifically, in one embodiment, the drying air duct includes a first condensing air duct 3, a second condensing air duct 4, and a fan air duct 5;

[0155] The first condensing air duct 3 is formed on the side of the outer cylinder 1 away from the inner cylinder 2. The first condensing air duct 3 includes a first air inlet 31 and a first air outlet.

[0156] The second condensing air duct 4 is formed between the outer cylinder 1 and the inner cylinder 2. The second condensing air duct 4 is provided with a second air outlet 41, which connects the second condensing air duct 4 to the first condensing air duct 3.

[0157] The first air inlet 31 and the second air outlet are set at different heights along the bottom of the rear cylinder of the outer cylinder 1, wherein the first air inlet 31 is set at the lower part of the bottom of the rear cylinder of the outer cylinder 1, and the second air outlet 41 is set at the upper part of the bottom of the rear cylinder of the outer cylinder 1; the first air outlet is located on the side wall of the first condensing air duct 3 and is located between the first air inlet 31 and the second air outlet 41.

[0158] The first air outlet is connected to the inlet of the fan duct 5. Both the first condensing duct 3 and the second condensing duct 4 are used to circulate condensate, condensing the drying airflow to reduce its humidity. A heating device is installed in the fan duct 5 or the drying system to heat the drying airflow. The heated drying airflow first enters the inner drum 2, comes into contact with the clothes, dries them, and carries the moisture from the clothes into the outer drum 1. It should be noted that since the second condensing duct 4 is formed between the outer drum 1 and the inner drum 2, any connection point between the inner drum 2 and the outer drum 1 can be considered as the air inlet of the second condensing duct 4. Due to differences in the structure of different garment processing equipment, some inner drums 2 have several through holes, allowing the drying airflow in the inner drum 2 to pass through these holes into the outer drum 1 (i.e., into the second condensing duct 4); other garment processing equipment does not have through holes in the inner drum 2, but the inner drum 2 and outer drum 1 are connected, allowing the drying airflow in the inner drum 2 to enter the outer drum 1 through the connection point. In other words, this embodiment does not limit the shape and position of the air inlet of the second condensing air duct 4, nor does it limit the number of air inlets of the second condensing air duct 4.

[0159] Specifically, in one embodiment, the second condensing air duct 4 refers to the space between the rear bottom of the inner cylinder 2 and the rear bottom of the outer cylinder 1. The condensed water flows downward along the inner side wall of the rear bottom of the outer cylinder 1 and comes into contact with the drying airflow in the second condensing air duct 4 to achieve condensation.

[0160] After the drying airflow enters the outer cylinder 1, as Figure 4 As shown, a portion of the drying airflow flows upward along the second condensing air duct 4 and is eventually discharged from the second air outlet 41; another portion of the drying airflow enters the first air inlet 31 and then enters the first condensing air duct 3. Figure 5 As shown, the drying airflow in the first condenser duct 3 flows upward along the duct wall of the first condenser duct 3, and after reaching the first air outlet, it enters the fan duct 5 through the first air outlet. At the same time, the drying airflow discharged from the second air outlet 41 enters the upper part of the second condenser duct 4, and enters the fan duct 5 through the first air outlet. After being heated, the drying airflow in the fan duct 5 re-enters the inner drum 2 to dry the clothes, thus circulating in this way.

[0161] This application also provides a laundry processing device that, when processing laundry, employs the method described above for preventing time jumps in the laundry processing process or the drying system described above.

[0162] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0163] In the above embodiments of this application, 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.

[0164] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0165] 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.

[0166] Furthermore, the functional units in the various embodiments of this application 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.

[0167] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0168] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for preventing time jumps in the laundry processing procedure, characterized in that, include: Obtain the weight and water absorption data of the laundry to be washed; The ease of dehydration of the laundry to be treated is determined based on the weight and water absorption data. When the laundry to be treated is difficult to dehydrate, adjust the dehydration parameters and / or drying parameters to reduce the drying time of the laundry to be treated. When the laundry is difficult to dehydrate, adjusting the dehydration parameters and / or drying parameters includes: Increase the number of dehydration cycles in the dehydration parameters and change the drying parameters based on the increased number of dehydration cycles to perform secondary dehydration on the laundry during the drying process; The step of increasing the number of dehydration cycles in the dehydration parameters and changing the drying parameters based on the increased number of dehydration cycles to perform secondary dehydration on the laundry during the drying process includes: The target value of the secondary dehydration speed is determined based on the weight data of the laundry to be treated; The laundry to be treated is subjected to secondary dehydration according to the target value of the secondary dehydration speed; When the laundry to be treated is difficult to dehydrate, the method further includes: The first dehydration threshold is obtained by reducing the set value of the dehydration speed in the first dehydration stage, wherein the first dehydration stage is the dehydration process performed before drying, and the second dehydration stage is the dehydration process performed during drying. The laundry to be treated is dehydrated once according to the first dehydration threshold. Obtain the actual value of the dehydration speed during the first dehydration cycle; When the actual value of the first dehydration speed is less than the first dehydration threshold, the target value of the second dehydration speed is reduced, and the operation continues until the end or a fault is reported.

2. The method for preventing time jumps in the laundry processing process according to claim 1, characterized in that, After obtaining the weight data of the laundry to be washed, the method further includes: Calculate the total processing time based on the weight data; The method further includes: When the laundry to be treated is difficult to dehydrate, the total processing time is not adjusted.

3. The method for preventing time jumps in the laundry processing process according to claim 2, characterized in that, The method further includes: when the dehydration difficulty of the laundry to be treated is easy to dehydrate, determining whether the actual value of the first dehydration speed during the dehydration process is less than a minimum threshold; if so, retrieving extended time data from a preset time table based on the actual value of the second dehydration speed and weight data; increasing the total processing time based on the extended time data, and displaying the increased total processing time.

4. The method for preventing time jumps in the laundry processing procedure according to claim 1, characterized in that, The acquisition of water absorption data includes: Obtain total inflow data; The water inflow threshold is retrieved based on the weight data; When the total influent volume is less than or equal to the influent volume threshold, the water absorption data indicates that the water absorption is small. When the total inflow data is greater than the inflow threshold, the water absorption data is considered to be a large amount of water absorbed.

5. The method for preventing time jumps in the laundry processing process according to claim 4, characterized in that, The step of determining the ease of dehydration of the laundry based on the weight and absorbency data includes: When the weight data is greater than the preset weight threshold and the water absorption data is a small amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be difficult to dehydrate. When the weight data is greater than the preset weight threshold and the water absorption data is a large amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be easy to dehydrate. When the weight data is less than or equal to a preset weight threshold, and the water absorption data is a small amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be easy to dehydrate. When the weight data is less than or equal to a preset weight threshold, and the water absorption data is a large amount of water absorption, the dehydration difficulty of the laundry to be treated is determined to be difficult to dehydrate.

6. The method for preventing time jumps in the laundry processing procedure according to any one of claims 1-5, characterized in that, The secondary dehydration is thermal dehydration.

7. A drying system, characterized in that, The method for preventing time jumps in the laundry processing process according to any one of claims 1-6, wherein the drying system includes an inner drum and an outer drum, and a drying air duct formed between the inner drum and the outer drum, the drying air duct including a first condensing air duct and a second condensing air duct; The first condensation duct is formed on the side of the outer cylinder away from the inner cylinder; The second condensation duct is formed between the outer cylinder and the inner cylinder.

8. A laundry processing device, characterized in that, When processing laundry, the method for preventing time jumps in the laundry processing process as described in any one of claims 1-6 or the drying system as described in claim 7 is used.

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