Control method of clothing processing device and clothing processing device

By setting a temperature sensor on the outside of the washing drum and performing weighted calculation of the temperature correction strategy, the problem of warm water or high temperature washing caused by a failure of the washing drum temperature sensor package is solved, and normal washing operations are carried out and the user experience is improved.

CN119121564BActive Publication Date: 2025-09-23GREE ELECTRIC APPLIANCE INC OF ZHUHAI
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202411094170.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-09
Publication Date
2025-09-23
Estimated Expiration
2044-08-09

AI Technical Summary

Technical Problem

A malfunction of the temperature sensor package in the washing drum of an existing washer-dryer makes it impossible to perform warm water or high-temperature washing operations, increasing user costs and reducing the user experience.

Method used

The first and second temperature sensors located outside the washing tub are used to obtain temperature values, and the washing medium temperature is determined through a temperature correction strategy and weighted calculation to ensure that the clothing processing device can normally perform warm water or high temperature washing operations.

Benefits of technology

Accurately determine the temperature of the washing medium to ensure that the clothing processing device can normally perform warm water or high temperature washing operations, improving the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119121564B_ABST
    Figure CN119121564B_ABST
Patent Text Reader

Abstract

The present invention relates to the technical field of clothing processing equipment, and in particular to a control method for a clothing processing device and a clothing processing device. The method comprises: in the process of heating a washing medium based on a heating element, obtaining the temperature values ​​of at least two positions outside a washing drum based on a temperature sensing component, the temperature sensing component comprising a first temperature sensing component and a second temperature sensing component, the space where the first temperature sensing component and the second temperature sensing component are located is connected to the washing drum, and the first temperature sensing component and the second temperature sensing component are not in contact with the washing medium; performing a weighted calculation based on a temperature correction strategy and the temperature values ​​of at least two positions to obtain the temperature value of the washing medium, the temperature correction strategy including the weights of the temperature values ​​of at least two positions. In the present invention, the temperature of the washing medium in the washing drum can be calculated by a temperature sensing component located outside the washing drum to accurately determine the temperature of the washing medium, thereby ensuring the normal washing operation of the clothing processing device and effectively improving the user experience.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing equipment, and in particular to a control method for a clothing processing device and a clothing processing device. Background Art

[0002] As people's quality of life continues to improve, clothing processing devices such as washing machines have become one of the indispensable household appliances in every household. The types of washing machines are also constantly enriched, and the functions of washing machines are also constantly updated. Among them, with the development of intelligent washing and drying machines, more and more users prefer to use washing and drying machines.

[0003] During use, a washer-dryer may malfunction. Existing washer-dryers generally have a fault detection program, and when a fault occurs, the washer-dryer generally stops working and cannot perform subsequent laundry processing operations.

[0004] The washing drum of a washer-dryer is equipped with a temperature sensor, i.e., a temperature sensor and / or a temperature and humidity sensor. If the temperature sensor in the washing drum fails, it will not affect the normal temperature washing of the washing machine. However, when the user needs to perform other washing operations, such as warm water washing or high temperature washing, the temperature sensor in the washing drum is damaged, resulting in the inability to properly detect the heating temperature of the washing medium. The user can only report the problem and wait for after-sales service to come to the customer service center for repairs, which greatly increases the user's usage costs and leads to a poor user experience. Summary of the Invention

[0005] In view of this, the present invention provides a control method for a clothing processing device and a clothing processing device to solve the problem in the prior art that the temperature sensor inside the washing drum of the clothing processing device is in a faulty state, resulting in the inability to perform warm water or high-temperature washing operations, increasing user usage costs and resulting in a poor user experience.

[0006] A first aspect of an embodiment of the present invention provides a method for determining the temperature of a washing medium, which is applied to a laundry processing device, wherein the laundry processing device is provided with a washing drum, a heating element, and a temperature sensing component, wherein the heating element is configured to heat the washing medium in the washing drum; the method comprising:

[0007] During the process of heating the washing medium by the heating element, temperature values ​​at at least two locations outside the washing drum are obtained by the temperature sensing assembly, the temperature sensing assembly including a first temperature sensing element and a second temperature sensing element located at different locations outside the washing drum, wherein spaces where the first temperature sensing element and the second temperature sensing element are located are connected to the washing drum, and neither the first temperature sensing element nor the second temperature sensing element is in contact with the washing medium;

[0008] The temperature value of the washing medium is obtained by performing a weighted calculation based on a temperature correction strategy and the temperature values ​​of the at least two locations, wherein the temperature correction strategy includes weights of the temperature values ​​of the at least two locations.

[0009] In some embodiments, the first temperature sensing element is disposed on the upper side of the front of the washing tub, and the second temperature sensing element is disposed on the lower side of the rear of the washing tub;

[0010] or,

[0011] A drying channel is provided in the clothing processing device, one end of the drying channel is connected to the drying air flow intake position of the washing drum, and the other end of the drying channel is connected to the drying air flow exhaust position of the washing drum, the first temperature sensing element is provided at the drying air flow intake position, and the second temperature sensing element is provided at the drying air flow exhaust position.

[0012] In some embodiments, the method further comprises:

[0013] determining a temperature rise rate of a target temperature sensing element among the first temperature sensing element and the second temperature sensing element, where the target temperature sensing element is either the first temperature sensing element or the second temperature sensing element, or the target temperature sensing element is the one located higher than the first temperature sensing element or the second temperature sensing element;

[0014] determining the temperature correction strategy according to the rate range to which the temperature rise rate of the target temperature sensing element belongs;

[0015] Different rate intervals correspond to different temperature correction strategies, and in different temperature correction strategies, the value ranges of the weights of the temperature values ​​of the at least two positions are different.

[0016] In some embodiments, determining the temperature correction strategy according to the rate range to which the temperature rise rate of the target temperature sensing element belongs includes:

[0017] If the heating rate is in a rate interval greater than or equal to a rate threshold, selecting a first temperature correction strategy as the temperature correction strategy;

[0018] If the heating rate is in a rate interval less than a rate threshold, selecting a second temperature correction strategy as the temperature correction strategy;

[0019] In the same temperature correction strategy, the weight of the temperature value of the higher position among the at least two positions is greater than the weight of the temperature value of the lower position.

[0020] In some embodiments, the temperature correction strategy includes a first weight factor and a second weight factor for the temperature values ​​of the at least two locations at different heating rates, wherein:

[0021] The weight of the temperature value of a single location is equal to the product of the first weight factor and the second weight factor of the single location;

[0022] The first weight factor of the single position reflects the influence ratio of the single position on the temperature of the washing medium among the at least two positions, and the sum of the influence ratios of the at least two positions on the temperature of the washing medium is 1;

[0023] The second weighting factor for the single location reflects the temperature loss from the scrubbing medium to the single location.

[0024] In some embodiments, in the first temperature correction strategy, a first weighting factor K11 of the temperature value of the higher position of the at least two positions satisfies 20%≤K11≤80%, and a second weighting factor K1 satisfies 1.1≤K1≤1.2; and

[0025] A first weighting factor K22 of the temperature value of the lower position of the at least two positions satisfies 20%≤K22≤80%, and a second weighting factor K2 satisfies 1.15≤K2≤1.25, but the sum of K11 and K22 is equal to 1;

[0026] In the second temperature correction strategy, a first weighting factor K33 of the temperature value of the higher position of the at least two positions satisfies 20%≤K22≤80%, and a second weighting factor K3 satisfies 1.05≤K3≤1.3; and

[0027] The first weighting factor K44 of the temperature value of the lower position of the at least two positions satisfies 20%≤K22≤80%, the second weighting factor K4 satisfies 1.1≤K4≤1.4, but the sum of K33 and K44 is equal to 1.

[0028] In some embodiments, a third temperature sensing element is further provided in the washing tub, and the third temperature sensing element is used to contact the washing medium and obtain the temperature value of the washing medium;

[0029] Before obtaining the temperature values ​​of at least two locations outside the washing tub based on the temperature sensing component, the method further includes the following steps:

[0030] Acquiring an operating state of the third temperature sensing component, where the operating state at least includes a fault state;

[0031] determining whether the third temperature sensing element is in the fault state;

[0032] When the third temperature sensing element is in the fault state, controlling the temperature sensing component to operate during the process of heating the washing medium based on the heating element; or

[0033] When the third temperature sensing element is in the fault state, if the fault recovery is successful, then in the process of heating the washing medium based on the heating element, the temperature value of the washing medium detected by the third temperature sensing element is obtained; or

[0034] When the third temperature sensing element is in the fault state, if the fault recovery is not successfully performed, the temperature sensing component is controlled to operate during the process of heating the washing medium based on the heating element.

[0035] In some embodiments, the method further comprises:

[0036] In the case of starting a washing medium heating program, determining based on a target temperature value of the heating program and a temperature value of a higher position among the at least two positions;

[0037] If the target temperature value is greater than the temperature value at the higher position, turning on the heating element to heat the washing medium when the washing medium input reaches the target water level; or

[0038] If the target temperature value is less than or equal to the temperature value of the higher position, and the washing tub has performed the clothes drying process within the first time, turning on the heating element to heat the washing medium when the input washing medium reaches the target water level; or

[0039] If the target temperature value is less than or equal to the temperature value of the higher position, and the washing tub has not performed the clothes drying process within the first time, the washing tub is controlled to run a normal washing process.

[0040] A second aspect of an embodiment of the present invention provides a washing medium heating method, which is applied to a laundry processing device, wherein the laundry processing device is provided with a washing drum, a heating element, and a temperature sensing component, wherein the heating element is configured to heat the washing medium in the washing drum, the method comprising:

[0041] In the case where the washing medium needs to be heated, or during the process of heating the washing medium, the temperature of the washing medium is determined using the method described in the first aspect.

[0042] A third aspect of an embodiment of the present invention provides an electronic device, comprising:

[0043] a memory for storing one or more computer-executable instructions;

[0044] The processor is configured to call and execute computer executable instructions in the memory, thereby implementing the method according to the first aspect and the second aspect.

[0045] A third aspect of the embodiments of the present invention further provides a clothing processing device, which is controlled by the methods described in the first and second aspects, or has the electronic device described in the third aspect.

[0046] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0047] The temperature determination method for a washing medium disclosed herein is applied to a laundry processing device. The laundry processing device includes a washing drum, a heater, and a temperature sensing assembly. The heater is configured to heat the washing medium within the washing drum. The temperature sensing assembly includes a first temperature sensing assembly and a second temperature sensing assembly located at different locations outside the washing drum. The spaces within the first temperature sensing assembly and the second temperature sensing assembly are connected to the washing drum, but neither the first temperature sensing assembly nor the second temperature sensing assembly contacts the washing medium. In this temperature determination method, while the heater is heating the washing medium, the temperature sensing assembly obtains temperature values ​​at at least two locations outside the washing drum. A weighted calculation is then performed based on a temperature correction strategy and the temperature values ​​at the at least two locations to determine the temperature value of the washing medium within the washing drum. The temperature correction strategy includes weights for the temperature values ​​at the at least two locations. Based on this, the temperature sensing assembly located outside the washing drum calculates the temperature of the washing medium within the washing drum, thereby accurately determining the temperature of the washing medium. This ensures that the laundry processing device can perform normal warm water or high temperature washing operations, effectively improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0049] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0050] Figure 1 is a structural schematic diagram of a clothes processing device according to an embodiment of the present invention;

[0051] Figure 2 is a flow chart of a control method for a clothes treating apparatus according to an embodiment of the present invention;

[0052] Figure 3 is a logic flow chart for determining whether to execute a heating program in a control method of a clothes treating apparatus according to an embodiment of the present invention;

[0053] Figure 4 The present invention is a logic flow chart of determining a calculated temperature value of a washing medium in a control method of a laundry treatment apparatus according to an embodiment of the present invention.

[0054] Explanation of the accompanying reference numerals: 100, washer-dryer; 110, washing drum; 120, drying channel; 200, clothes; 300, third temperature sensing element; 400, temperature sensing component; 410, first temperature sensing element; 420, second temperature sensing element; 430, exhaust fan; 500, heating tube. DETAILED DESCRIPTION

[0055] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0056] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. "A plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0057] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0058] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0059] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0060] like Figure 1 As shown, an exemplary embodiment of the present invention provides a clothing processing device. The clothing processing device may include, but is not limited to, a washing machine, which may include, but is not limited to, a washer-care all-in-one machine, a washer-dryer all-in-one machine, and the like. For example, the washing machine may be a drum washing machine or a pulsator washing machine with drying or washing and care functions. Of course, the washing machine may also be other types of fully automatic washing machines.

[0061] It should be noted that, in one example, referring to Figure 1 As shown in FIG, a laundry processing device in an embodiment of the present invention is a washer-dryer 100. The washer-dryer 100 includes a washing drum 110, which can have both a drying function and a washing function. The washing drum 110 is used to wash or dry laundry 200. In other words, the washing drum 110 can contain a washing medium, which can include but is not limited to washing water.

[0062] In order to realize the drying function of the washing drum 110, the washer-dryer 100 is further provided with a drying channel 120 connected to the washing drum 110. One end of the drying channel 120 is connected to the drying air intake position of the washing drum 110, and the other end of the drying channel 120 is connected to the drying air exhaust position of the washing drum 110.

[0063] like Figure 1 As shown, the drying duct 120 may include an air inlet duct (not shown) and an air exhaust duct (not shown) in communication with the washing drum 110. The air inlet duct is used to deliver the drying airflow into the washing drum 110, and the air exhaust duct is used to exhaust the drying airflow from the washing drum 110. A temperature sensing assembly 400 is provided in the drying duct 120. The temperature sensing assembly 400 includes at least a first temperature sensing element 410 and a second temperature sensing element 420. The first temperature sensing element 410 is used to detect the temperature of the drying airflow entering the washing drum 110, and the second temperature sensing element 420 is used to detect the temperature of the drying airflow exhausting from the washing drum 110.

[0064] The first temperature sensing element 410 and the second temperature sensing element 420 are located at different positions outside the washing tub 110, and the spaces where the first temperature sensing element 410 and the second temperature sensing element 420 are located are connected to the interior of the washing tub 110, but the first temperature sensing element 410 and the second temperature sensing element 420 are not in contact with the washing medium.

[0065] In one example, the first temperature sensing element 410 is disposed on the upper side of the front of the washing drum 110, for example, in the air inlet passage of the drying duct 120, that is, the first temperature sensing element 410 is disposed at the air inlet position of the drying airflow. The second temperature sensing element 420 is disposed on the lower side of the rear of the washing drum 110, for example, in the air outlet passage of the drying duct 120, that is, the second temperature sensing element 420 is disposed at the exhaust position of the drying airflow.

[0066] The specific setting positions of the first temperature sensing element 410 and the second temperature sensing element 420 will vary depending on the model of the washing machine. Correspondingly, the temperature sampling values ​​of the first temperature C1 obtained based on the first temperature sensing element 410 at different positions will also be different, and the temperature sampling values ​​of the second temperature C2 obtained based on the second temperature sensing element 420 at different positions will also be different. Therefore, the specific temperature values ​​of the first temperature C1 and the second temperature C2 are not specifically limited here.

[0067] It should be noted that the specific arrangement structure of the drying channel 120 in the washer-dryer 100 in this example is not specifically limited. In other words, the first temperature sensing element 410 and the second temperature sensing element 420 can be set at any position outside the washing drum 110. The first temperature sensing element 410 and the second temperature sensing element 420 can include but are not limited to temperature sensors, temperature and humidity sensors, etc.

[0068] Continue to refer to Figure 1 As shown, in order to ensure and increase the inflow speed of the drying airflow in the air inlet channel, an induced draft fan 430 and the like may be further provided in the air inlet channel.

[0069] In order to meet the warm water washing operation or high temperature washing operation of the washer-dryer 100, a third temperature sensing element 300 and a heating element 500 are further provided in the washing tub 110. The third temperature sensing element 300 is used to obtain the temperature parameters of the washing medium.

[0070] The third temperature sensing element 300 may include, but is not limited to, a temperature sensor or a temperature and humidity sensor. In other words, the third temperature sensing element 300 can detect the temperature of the washing medium in the washing tub 110 in real time to ensure that the washer-dryer 100 can complete the warm water washing operation or the high temperature washing operation of the clothes 200.

[0071] It should be noted that the third temperature sensing element 300 can be disposed at any location within the washing tub 110, and there can be one or more third temperature sensing elements 300. When there is only one third temperature sensing element 300, the third temperature sensing element 300 can be disposed in the middle or at other locations within the washing tub 110. When there are multiple third temperature sensing elements 300, the multiple third temperature sensing elements 300 can be disposed on the top, bottom, or sidewalls of the washing tub 110, etc., so that multiple temperature values ​​can be obtained through the multiple third temperature sensing elements 300, and the average of the multiple temperature values ​​is used as the temperature value of the washing medium.

[0072] The heating element 500 is configured to heat the washing medium in the washing tub 110. In some embodiments, the heating element 500 can be an electrically heated drying heating tube, which can be disposed in the drying duct 120 to dry the washed clothes 200.

[0073] The determination of the temperature of the washing medium in the washer-dryer 100 is a very important and indispensable parameter, which can make the washing of the washer-dryer 100 more diverse, and the accurate determination of the temperature of the washing medium will also make the cleaning ratio of the clothes higher, and it will also be easier to control the switching time of the heating tube 500 in the washer-dryer 100, thereby reducing unnecessary energy consumption.

[0074] In this example, when the third temperature sensor 300 is in a faulty state or the detection data of the third temperature sensor 300 is inaccurate, the third temperature sensor 300 fails to detect the temperature of the washing medium in the washing drum 110. In this case, the temperature of the washing medium cannot be accurately determined, which will affect subsequent washing operations in the washing drum 110, such as warm water washing or high-temperature washing operations. Based on this, while the heating element 500 is heating the washing medium, the first temperature sensor 410 and the second temperature sensor 420 can be used to calculate the temperature of the washing medium in the washing drum 110, thereby accurately determining the temperature of the washing medium, thereby ensuring that the washing drum 110 can normally perform subsequent warm water washing or high-temperature washing operations, effectively improving the user experience.

[0075] It should be noted that the conversion process of the washing medium temperature based on the first temperature sensing element 410 and the second temperature sensing element 420 is described in the following control method of the clothes processing device.

[0076] like Figure 2 As shown, in some embodiments, an exemplary embodiment of the present invention provides a method for confirming the temperature of a washing medium. The method for confirming the temperature of a washing medium comprises the following steps:

[0077] Step S100: in the process of heating the washing medium based on the heating element, temperature values ​​of at least two positions outside the washing tub are obtained based on the temperature sensing component.

[0078] Step S200: performing weighted calculation based on the temperature correction strategy and the temperature values ​​of at least two locations to obtain the temperature value of the washing medium, wherein the temperature correction strategy includes weights of the temperature values ​​of at least two locations.

[0079] In step S100, at least two temperature values ​​are acquired using the temperature sensing component 400. In one example, the temperature sensing component 400 may acquire a first temperature C1 and a second temperature C2. Specifically, the at least two temperature values ​​include the first temperature C1 and the second temperature C2. The first temperature C1 and the second temperature C2 represent temperature values ​​at different locations outside the washing tub 110, respectively.

[0080] In step S200, a weighted calculation is performed using the first temperature C1 and the second temperature C2, and a corresponding temperature correction strategy is used to determine the temperature of the washing medium. The temperature correction strategy includes weights for the temperature values ​​at at least two locations. Based on this, the first temperature C1 and the second temperature C2 obtained outside the washing drum 110 are weighted and calculated, and the temperature correction strategy is used to accurately determine the temperature of the washing medium.

[0081] In this example, the temperature sensing component 400 can be used to convert the temperature of the washing medium in the washing drum 110, thereby accurately determining the temperature of the washing medium, thereby ensuring that the clothing processing device can perform normal warm water washing operations and high temperature washing operations, effectively improving the user experience.

[0082] The temperature correction strategy can be determined by the following methods:

[0083] First, the temperature rise rate of the target temperature sensing element among the first temperature sensing element 410 and the second temperature sensing element 420 is determined. The target temperature sensing element is any one of the first temperature sensing element 410 and the second temperature sensing element 420, or the target temperature sensing element is the one with a higher position among the first temperature sensing element 410 and the second temperature sensing element 420.

[0084] Then, a temperature correction strategy is determined according to the rate range to which the temperature rise rate of the target temperature sensing element belongs, wherein different rate ranges correspond to different temperature correction strategies, and in different temperature correction strategies, the weights of the temperature values ​​at at least two positions have different value ranges.

[0085] In the process of determining the temperature correction strategy based on the rate range of the target temperature sensor's heating rate, the following methods can be used:

[0086] When the heating rate is within a rate range greater than or equal to a rate threshold, the first temperature correction strategy is selected as the temperature correction strategy. The rate threshold can be 0.5°C. The heating rate represents the rate of increase of the higher of at least two temperature values, i.e., the increase in temperature per unit time.

[0087] When the heating rate is within a rate range less than the rate threshold, the second temperature correction strategy is selected as the temperature correction strategy. In the same temperature correction strategy, the weight of the temperature value of the higher position in at least two positions is greater than the weight of the temperature value of the lower position.

[0088] For example, refer to Figure 1 As shown in the figure, the setting position of the first temperature sensing element 410 is higher than the setting position of the second temperature sensing element 420, and the first temperature sensing element 410 is used to obtain the temperature of the drying airflow entering the washing drum 110, and the second temperature sensing element 420 is used to obtain the temperature of the drying airflow after the clothes 200 are dried. That is to say, the temperature value of the first temperature C1 obtained by the first temperature sensing element 410 is greater than the temperature value of the second temperature C2 obtained by the second temperature sensing element 420. At this time, the weight of the temperature value of the first temperature C1 is greater than the temperature value of the second temperature C2.

[0089] The temperature correction strategy includes a first weight factor and a second weight factor for the temperature values ​​of at least two locations at different heating rates, wherein the weight of the temperature value of a single location is equal to the product of the first weight factor and the second weight factor of the single location.

[0090] The first weight factor of a single position reflects the influence ratio of the single position on the temperature of the washing medium in the at least two positions, and the sum of the influence ratios of the at least two positions on the temperature of the washing medium is 1.

[0091] The second weighting factor for the individual locations reflects the temperature loss from the scrubbing medium to the individual locations.

[0092] In one example, in the first temperature correction strategy, a first weighting factor K11 of the temperature value at the higher of the at least two locations satisfies 20% ≤ K11 ≤ 80%, and a second weighting factor K1 satisfies 1.1 ≤ K1 ≤ 1.2. A first weighting factor K22 of the temperature value at the lower of the at least two locations satisfies 20% ≤ K22 ≤ 80%, and a second weighting factor K2 satisfies 1.15 ≤ K2 ≤ 1.25, where the sum of K11 and K22 is equal to 1.

[0093] In a specific example, it is taken as an example that the at least two temperature values ​​include a first temperature C1 obtained by the first temperature sensing element 410 and a second temperature C2 obtained by the second temperature sensing element 420 .

[0094] Furthermore, a comparison between the overall power P1 of the washer-dryer 100 and the power P2 of the heating tube 500 is used to determine whether the heating element 500 has activated wash water heating. The power P2 of the heating tube 500 ranges from 800W to 2500W, with a preferred value of 1800W. If the washer-dryer 100 uses a 10kg drum washer-dryer, the power P2 of the heating tube 500 is 1800W. If it is determined that the overall power P1 of the washer-dryer 100 is greater than the power P2 of the heating tube 500, it can be determined that the washing medium in the washing drum 110 has activated wash water heating.

[0095] The first temperature C1 and the second temperature C2 are acquired in real time based on the first temperature sensing element 410 and the second temperature sensing element 420, and the data of the first temperature C1 and the second temperature C2 are recorded by the control system of the washer-dryer 100. It should be noted that the control system of the washer-dryer 100 can adopt a control system in the prior art, as long as the control system can control various startup functions of the washer-dryer 100. The specific structure type and specific control logic of the control system are not detailed here.

[0096] Then, the increase value A of the first temperature C1 within the predetermined time is obtained. The increase value A is used to represent the temperature increase data of the first temperature C1 within a one-minute time difference. For example, if the first temperature sensed by the first temperature sensing element 410 is 40°C one minute ago and 41°C one minute later, the increase value A = (41°C - 40°C), i.e., the increase value A is 1°C.

[0097] Based on the magnitude relationship between the boost value A and the preset value, the calculated temperature value of the washing medium in the washing tub 110 is determined. In this example, since the boost value A of the first temperature C1 is greater than 0.5°C, the washing medium temperature value is obtained based on the first temperature correction strategy and the weighted calculation of the first temperature C1 and the second temperature C2.

[0098] The process of determining the temperature value of the washing medium is as follows:

[0099] Since the heating rates of the heating tube 500 in the washer-dryer 100 are different, the value range of the first weight factor K11 of the first temperature C1 is 20% to 80%, and the preferred value is 55%; the value range of the second weight factor K1 is between 1.1 and 1.2, and preferably, the value of the second weight factor K1 is 1.15.

[0100] The value range of the first weight factor K22 of the second temperature C2 is 20% to 80%, and the preferred value is 45%. The value range of the second weight factor K2 is 1.15 to 1.25, and preferably, the value of the second weight factor K2 is 1.2.

[0101] The calculated value of the temperature of the washing medium is C=(C1×K1×K11)+(C2×K2×K22).

[0102] Therefore, within the one-minute time difference, the temperatures before and after the washing medium detected by the first temperature sensor 410 are 39°C and 40°C, respectively, indicating an increase of 1°C. The second temperature C2 detected by the second temperature sensor 420 is 38°C. At this time, the calculated temperature C of the washing medium in the washing tub 110 = (40°C × 1.15 × 0.55) + (38°C × 1.2 × 0.45) = 45.82°C.

[0103] In the second temperature correction strategy, a first weighting factor K33 of the temperature value of the higher of the at least two positions satisfies 20%≤K22≤80%, and a second weighting factor K3 satisfies 1.05≤K3≤1.3. A first weighting factor K44 of the temperature value of the lower of the at least two positions satisfies 20%≤K22≤80%, and a second weighting factor K4 satisfies 1.1≤K4≤1.4, wherein the sum of K33 and K44 is equal to 1.

[0104] When the increase value A is less than 0.5° C., the temperature value of the washing medium is obtained based on the second temperature correction strategy and a weighted calculation of the first temperature C1 and the second temperature C2.

[0105] The temperature value of the washing medium C=(C3×K3×K33)+(C4×K4×K44).

[0106] When the lifting value A is less than 0.5° C., the calculation process of the temperature calculation value of the washing medium in the washing tub 110 can refer to the calculation process in the above example (ie, the lifting value A is greater than 0.5° C.), which will not be repeated here.

[0107] like Figure 3 As shown, a third temperature sensor 300 is also provided within the washing drum 110. This third temperature sensor 300 is used to obtain temperature parameters of the washing medium. The third temperature sensor 300 may include, but is not limited to, a temperature sensor or a temperature and humidity sensor. In other words, the third temperature sensor 300 can monitor the temperature of the washing medium in the washing drum 110 in real time to ensure that the washer-dryer 100 can complete high-temperature washing operations on the clothes 200.

[0108] The third temperature sensing element 300 can be disposed at any position within the washing tub 110. There can be one or more third temperature sensing elements 300. When there is only one third temperature sensing element 300, the third temperature sensing element 300 can be disposed in the middle or other positions within the washing tub 110. When there are multiple third temperature sensing elements 300, the multiple second temperature sensing elements 300 can be disposed on the top, bottom, and sidewalls of the washing tub 110, etc., to obtain multiple temperature values ​​through the multiple second temperature sensing elements 300, and the average of the multiple temperature values ​​is used as the temperature value of the washing medium.

[0109] Before the step of obtaining at least two temperature values ​​by using the temperature sensing component 400, the control method of the clothes treating apparatus of the present invention further includes the following steps:

[0110] The operating state of the third temperature sensing element 300 is acquired, wherein the operating state at least includes a fault state.

[0111] It is determined whether the operating state of the third temperature sensing element 300 is in a fault state, that is, the third temperature sensing element 300 is damaged or the detection effect is poor.

[0112] When the third temperature sensing element 300 is in a fault state, the temperature sensing assembly 400 is controlled to operate based on the process of the heating element 500 heating the washing medium.

[0113] Furthermore, when the third temperature-sensing element 300 is in a faulty state and the fault can be successfully and autonomously recovered, the control system autonomously recovers the fault and, while the heating element 500 is heating the washing medium, the third temperature-sensing element 300 detects the temperature of the washing medium to control the washing tub 110 to operate a normal washing process. A normal washing process means that the third temperature-sensing element 300 is in a normal state and the washing tub 110 is washing clothes in a normal manner.

[0114] If the third temperature sensing element 300 is in a faulty state and the fault cannot be recovered automatically, the temperature sensing assembly 400 is controlled to operate while the heating element 500 is heating the washing medium. The control system also controls the washer-dryer 100 to issue a fault alarm to remind the user to promptly address the faulty state of the third temperature sensing element 300.

[0115] Based on this, when the third temperature sensing element 300 in the washing drum 110 is in a faulty state, the first temperature sensing element 410 and the second temperature sensing element 420 arranged on the outside of the washing drum 110 are used to accurately determine the temperature value of the washing medium in the washing drum 110 at this time based on the temperature correction strategy and the weighted calculation of the first temperature C1 and the second temperature C2, thereby ensuring that the washing medium is heated to the corresponding target value to ensure the washing effect of the clothes, effectively improving the washing ability of the washer-dryer 100 in warm water and high temperature water, and effectively improving the user experience.

[0116] At the same time, before the third temperature sensing component 300 is repaired and replaced, the warm water washing or high temperature washing function of the washer-dryer 100 can be temporarily used, which effectively improves the overall service life of the washer-dryer 100 while meeting the safety performance requirements of the washer-dryer 100.

[0117] like Figure 3 As shown, in some embodiments, when it is determined that the fault state of the third temperature sensing element 300 has not been restored, when the washing medium heating program is started, a judgment is made based on the target temperature value of the heating program and the higher temperature value of at least two positions. It should be noted that the target temperature value of the heating program can be a temperature value issued by the control system of the washer-dryer 100. The issued temperature target value can be a temperature value set when the washing drum 110 performs warm water washing or high temperature washing. This temperature value can be the setting of the washer-dryer 110 when it leaves the factory, or it can be a value flexibly set by the user according to needs, and is not specifically limited here.

[0118] Reference Figure 3 As shown, in a specific example, the washing drum 110 of the washer-dryer 100 can run a clothes drying program. That is, a dry air flow can be delivered to the washing drum 110 through the air inlet channel in the drying channel 120. The dry air flow can dry the clothes in the washing drum 110. The dry air flow flows out of the washing drum 110 after drying and is discharged through the exhaust channel. For example, the first temperature C1 is greater than the second temperature C2.

[0119] If the target temperature value is greater than the temperature value of the higher temperature, the heating member 500 is turned on when the inputted washing medium reaches the target water level to heat the washing medium.

[0120] That is, when the target temperature value is greater than the first temperature C1, it indicates that the temperature of the washing medium in the washing tub 110 is higher than the first temperature C1, which means that the temperature of the washing medium cannot meet the requirements of subsequent washing and the washing medium needs to be heated. In this case, the heating element 500 can be used to heat the washing medium after the water level of the washing medium reaches the target water level or while the washing medium is being input into the washing tub 110.

[0121] It should be noted that the target water level can be flexibly set according to the weight and / or type of the clothes. The target water level can be the set value when the washer-dryer 100 leaves the factory, or it can be a water level value flexibly set by the user according to the clothes.

[0122] If the target temperature value is less than or equal to the temperature value of the upper position and the washing tub 110 performs the laundry drying process for the first time, the heating element is turned on to heat the washing medium when the input washing medium reaches the target water level.

[0123] When the target temperature value is less than the first temperature C1, it indicates that the temperature of the washing medium in the washing drum 110 is lower than the first temperature C1 and that the washing drum has already performed the clothes drying process within the first time. If the water level of the washing medium has not reached the target water level, the washing medium needs to be added to the washing drum 110. After the washing medium water level reaches the target water level, or while the washing medium is being added to the washing drum 110, the heating element 500 is activated to heat the washing medium.

[0124] The value range of the first time is 50 minutes to 80 minutes. Preferably, the first time can be set to 60 minutes.

[0125] If the target temperature value is less than or equal to the temperature value of the higher position, and the washing tub has not performed a clothes drying program within the first time, the washing tub is controlled to run a normal washing process.

[0126] When the temperature target value is less than the first temperature C1, it indicates that the temperature of the washing medium in the washing drum 110 is lower than the first temperature C1, and the washing drum has not performed the clothes drying process within the first time, then the control system controls the washing drum 110 to run a normal washing process.

[0127] An exemplary embodiment of the present invention further provides a washing medium heating method, which is applied to a laundry processing apparatus. The laundry processing apparatus includes a washing drum 110, a heating element 500, and a temperature sensing assembly 400. The heating element 500 is configured to heat the washing medium within the washing drum 110. The washing medium heating method includes: when heating the washing medium is required, or during heating of the washing medium, determining the temperature of the washing medium using the washing medium temperature determination method described in the above example.

[0128] An exemplary embodiment of the present invention further provides an electronic device, which includes a processor (not shown in the figure) and a memory (not shown in the figure) connected to the processor. The memory is used to store one or more computer-executable instructions.

[0129] The computer executable instructions can be called by the processor to execute the temperature confirmation method or the washing medium heating method in the above embodiments.

[0130] An exemplary embodiment of the present invention further provides a clothes treating device, which is controlled by the washing medium temperature confirmation method or washing medium heating method in the above embodiments; or has the electronic device in the above embodiments.

[0131] In the above solution, a laundry processing device is provided with a washing drum 110 and a temperature sensing assembly 400, wherein the temperature sensing assembly 400 is located outside the washing drum 110. The washing drum 110 contains a washing medium for washing clothes and a third temperature sensing element 300 for obtaining temperature parameters of the washing medium. When the third temperature sensing element 300 is in a faulty state, for example, when the third temperature sensing element 300 fails or the detection effect is poor, the temperature values ​​of at least two locations can be obtained by the temperature sensing assembly 400 located outside the washing drum 110. Based on the temperature correction strategy and the weighted calculation of the temperature values ​​of at least two locations, the temperature of the washing medium in the washing drum 110 is determined, thereby accurately determining the temperature of the washing medium. While not requiring maintenance of the washer-dryer 100, the laundry processing device can continue to perform normal high-temperature washing operations, effectively improving the user experience.

[0132] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0133] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for confirming the temperature of a washing medium, applied to a laundry processing device, wherein the laundry processing device is provided with a washing tub, a heating element, and a temperature sensing component, wherein the heating element is configured to heat the washing medium in the washing tub; characterized in that: The method comprises: During the process of heating the washing medium by the heating element, temperature values ​​at at least two locations outside the washing drum are obtained by the temperature sensing assembly, the temperature sensing assembly including a first temperature sensing element and a second temperature sensing element located at different locations outside the washing drum, wherein spaces where the first temperature sensing element and the second temperature sensing element are located are connected to the washing drum, and neither the first temperature sensing element nor the second temperature sensing element is in contact with the washing medium; performing a weighted calculation based on a temperature correction strategy and the temperature values ​​of the at least two locations to obtain a temperature value of the washing medium, wherein the temperature correction strategy includes weights of the temperature values ​​of the at least two locations; wherein determining a temperature rise rate of a target temperature sensing element among the first temperature sensing element and the second temperature sensing element, wherein the target temperature sensing element is either the first temperature sensing element or the second temperature sensing element, or the target temperature sensing element is the one with a higher position among the first temperature sensing element and the second temperature sensing element; determining the temperature correction strategy according to the rate range to which the temperature rise rate of the target temperature sensing element belongs; Different rate intervals correspond to different temperature correction strategies, and in different temperature correction strategies, the value ranges of the weights of the temperature values ​​of the at least two positions are different.

2. The method for confirming the temperature of the washing medium according to claim 1, wherein: The first temperature sensing element is arranged on the upper side of the front of the washing tub, and the second temperature sensing element is arranged on the lower side of the rear of the washing tub; or, A drying channel is provided in the clothing processing device, one end of the drying channel is connected to the drying air flow intake position of the washing drum, and the other end of the drying channel is connected to the drying air flow exhaust position of the washing drum, the first temperature sensing element is provided at the drying air flow intake position, and the second temperature sensing element is provided at the drying air flow exhaust position.

3. The method for confirming the temperature of the washing medium according to claim 1, wherein: The determining of the temperature correction strategy according to the rate range to which the temperature rise rate of the target temperature sensing element belongs includes: If the heating rate is in a rate interval greater than or equal to a rate threshold, selecting a first temperature correction strategy as the temperature correction strategy; If the heating rate is in a rate interval less than a rate threshold, selecting a second temperature correction strategy as the temperature correction strategy; In the same temperature correction strategy, the weight of the temperature value of the higher position among the at least two positions is greater than the weight of the temperature value of the lower position.

4. The method for confirming the temperature of the washing medium according to claim 3, characterized in that: The temperature correction strategy includes a first weight factor and a second weight factor of the temperature values ​​of the at least two locations at different heating rates, wherein: The weight of the temperature value of a single location is equal to the product of the first weight factor and the second weight factor of the single location; The first weight factor of the single position reflects the influence ratio of the single position on the temperature of the washing medium among the at least two positions, and the sum of the influence ratios of the at least two positions on the temperature of the washing medium is 1; The second weighting factor for the single location reflects the temperature loss from the scrubbing medium to the single location.

5. The method for confirming the temperature of the washing medium according to claim 4, characterized in that: In the first temperature correction strategy, a first weighting factor K11 of the temperature value of the higher position of the at least two positions satisfies 20%≤K11≤80%, and a second weighting factor K1 satisfies 1.1≤K1≤1.2; as well as, A first weighting factor K22 of the temperature value of the lower position of the at least two positions satisfies 20%≤K22≤80%, and a second weighting factor K2 satisfies 1.15≤K2≤1.25, but the sum of K11 and K22 is equal to 1; In the second temperature correction strategy, a first weighting factor K33 of the temperature value of the higher position of the at least two positions satisfies 20%≤K22≤80%, and a second weighting factor K3 satisfies 1.05≤K3≤1.3; as well as, The first weighting factor K44 of the temperature value of the lower position of the at least two positions satisfies 20%≤K22≤80%, the second weighting factor K4 satisfies 1.1≤K4≤1.4, but the sum of K33 and K44 is equal to 1.

6. The method for confirming the temperature of a washing medium according to any one of claims 1 to 5, characterized in that: A third temperature sensing element is further provided in the washing tub, and is used to contact the washing medium and obtain the temperature value of the washing medium; Before obtaining the temperature values ​​of at least two locations outside the washing tub based on the temperature sensing component, the method further includes the following steps: Acquiring an operating state of the third temperature sensing component, where the operating state at least includes a fault state; determining whether the third temperature sensing element is in the fault state; When the third temperature sensing element is in the fault state, controlling the temperature sensing component to operate during the process of heating the washing medium based on the heating element; or When the third temperature sensing element is in the fault state, if the fault recovery is successful, then in the process of heating the washing medium based on the heating element, the temperature value of the washing medium detected by the third temperature sensing element is obtained; or When the third temperature sensing element is in the fault state, if the fault recovery is not successfully performed, the temperature sensing component is controlled to operate during the process of heating the washing medium based on the heating element.

7. The method for confirming the temperature of the washing medium according to claim 1, wherein: The method further comprises: In the case of starting a washing medium heating program, determining based on a target temperature value of the heating program and a temperature value of a higher position among the at least two positions; If the target temperature value is greater than the temperature value at the higher position, turning on the heating element to heat the washing medium when the washing medium input reaches the target water level; or If the target temperature value is less than or equal to the temperature value of the higher position, and the washing tub has performed a clothes drying process within the first time, turning on the heating element to heat the washing medium when the input washing medium reaches the target water level; or If the target temperature value is less than or equal to the temperature value of the higher position, and the washing tub has not performed the clothes drying process within the first time, the washing tub is controlled to run a normal washing process.

8. A method for heating a washing medium, applied to a clothes processing device, wherein the clothes processing device is provided with a washing tub, a heating element, and a temperature sensing component, wherein the heating element is configured to heat the washing medium in the washing tub, characterized in that: The method comprises: In the case where the washing medium needs to be heated, or during the heating of the washing medium, the temperature of the washing medium is determined using the method according to any one of claims 1 to 7.

9. An electronic device, characterized in that: The electronic device comprises: a memory for storing one or more computer-executable instructions; A processor, configured to call and execute computer-executable instructions in the memory, thereby implementing the method according to any one of claims 1 to 8.

10. A clothes processing device, characterized in that: The method according to any one of claims 1 to 8 is used for control, or the electronic device according to claim 9 is provided.

Citation Information

Patent Citations

  • Washing machine and control method thereof

    CN112064288A

  • Washing machine and control method thereof

    WO2020248958A1