Washing machine and detection method

Abstract

The present invention provides a washing machine and a detection method, comprising a washing drum, wherein the washing drum has a washing cavity and a detection cavity; a first air outlet is arranged on the washing drum, and the washing cavity and the detection cavity are connected through the first air outlet; a second air outlet is arranged on the washing drum, and the second air outlet is arranged at an interval from the first air outlet; the washing cavity and the detection cavity are connected through the second air outlet; a drying structure, wherein the drying structure has a first drying channel and a second drying channel located in the washing cavity; when the drying structure introduces a drying fluid into the washing cavity, the drying fluid in the first drying channel enters the detection cavity through the first air outlet, and the drying fluid in the second drying channel enters the detection cavity through the second air outlet; a temperature sensing module is arranged in the detection cavity to measure the temperature of the fluid in the detection cavity, thereby solving the technical problem in the related art that lint accumulation in the dryer cannot be cleaned in time.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and in particular to a washing machine and a detection method. Background Art

[0002] The washer-dryer can achieve continuous hot air heating of clothes, thereby achieving the final effect of drying clothes. Among them, the water-condensing double condensation system has the advantage of high drying efficiency.

[0003] However, since the drying hot air circulation process can easily bring lint from clothes into the condensing duct, lint will be adsorbed on the fan or in the duct, resulting in a decrease in air volume and reduced drying efficiency. Some products will be equipped with a filter structure in the drying air inlet duct to prevent drying lint from entering the duct and clean the lint through various methods, but this can only slow down the accumulation of lint. Some products do not install filters, but adjust the condensed water flow and flow pattern in the condensing section to prevent or reduce lint from entering the duct, and clean the air outlet where lint is most likely to accumulate through the normal washing process. Such measures will affect drying efficiency and increase energy consumption.

[0004] Therefore, most products in the prior art will only report a fault when too much lint accumulates, blocking the fan or air duct, and the entire machine cannot dry. The above method not only causes unnecessary waste, but also seriously affects the user experience.

[0005] Therefore, the prior art needs to be further developed. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above technical deficiencies and provide a washing machine and a detection method to solve the technical problem in the related art that lint accumulation in the dryer cannot be cleaned in time.

[0007] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: a washing machine is provided, including a washing drum, which has a washing chamber and a detection chamber; a first air outlet is arranged on the washing drum, and the washing chamber and the detection chamber are connected through the first air outlet; a second air outlet is arranged on the washing drum, and the second air outlet is arranged spaced apart from the first air outlet; the washing chamber and the detection chamber are connected through the second air outlet; a drying structure, the drying structure has a first drying channel and a second drying channel located in the washing chamber; when the drying structure introduces drying fluid into the washing chamber, the drying fluid in the first drying channel enters the detection chamber through the first air outlet, and the drying fluid in the second drying channel enters the detection chamber through the second air outlet; a temperature sensing module is arranged in the detection chamber to measure the temperature of the fluid in the detection chamber.

[0008] Furthermore, an inner drum body is provided in the washing drum, and the inner drum body includes a partition arranged in the washing cavity. The first drying channel is located on one side of the partition. A accommodating cavity for placing clothes is provided on the side of the partition away from the first drying channel. After the second drying channel passes through the accommodating cavity, it reaches the second air outlet.

[0009] Furthermore, the inner cylinder includes a connecting plate, one end of which is connected to the partition, and the other end of the connecting plate is provided with a support plate; the support plate, the connecting plate and the partition form a accommodating cavity, and the side of the accommodating cavity away from the connecting plate has a connecting port connected to the accommodating cavity; the second drying channel is connected to the accommodating cavity through the connecting port.

[0010] Furthermore, a drying port is provided on the inner wall of the washing drum and is arranged opposite to the connecting port. The drying structure includes an air outlet channel, and a fan component and a heating component are provided in the air outlet channel; a return port is provided on the inner wall surface of the air outlet channel, and the air outlet channel is connected to the detection chamber through the return port.

[0011] Furthermore, a condensation channel is provided between the connecting plate and the washing tub, one end of the condensation channel is communicated with the first drying channel, and the other end of the condensation channel is communicated with the second drying channel.

[0012] Furthermore, the washing drum includes a mounting plate, which is arranged at intervals from the connecting plate, the condensation channel is located between the mounting plate and the connecting plate, and the first air outlet and the second air outlet are both arranged on the mounting plate; the detection chamber is located on the side of the condensation channel away from the mounting plate.

[0013] A detection method, applicable to the above-mentioned washing machine, is used to determine whether the first air outlet or the second air outlet is in a dirty and blocked state, and is characterized in that the detection method includes: measuring the temperature value K in the detection cavity through the temperature sensing module of the washing machine; obtaining a first threshold value K1 based on K; determining whether K1 is less than K2; if so, determining that the second air outlet is in a dirty and blocked state; if not, determining that the first air outlet is in a dirty and blocked state; wherein K2 is the second threshold value, and K2 is obtained based on the temperature measured by the temperature sensing module when the first air outlet and the second air outlet are in a normal state.

[0014] Furthermore, the first threshold K1 is calculated by recording K measured by the temperature sensing module at different times within a time T to obtain multiple K values, and the first threshold K1 is an average value of the multiple K values.

[0015] Furthermore, the method of measuring the temperature value K in the detection cavity by the temperature sensing module of the washing machine includes: weighing the clothes in the washing cavity to determine whether the weight g of the clothes is less than the third threshold G; if so, controlling the temperature sensing module to stop measuring; if not, controlling the temperature sensing module to measure K.

[0016] Furthermore, the method for obtaining the first threshold K1 based on K includes: measuring K after drying the clothes and before dehumidifying the accommodating cavity of the washing machine; selecting the maximum value K3 and the minimum value K4 of K within time t; calculating K0=K3-K4; judging whether K0 is less than or equal to n; if so, calculating K1; if not, controlling the temperature sensing module to remeasure K.

[0017] Furthermore, the method for determining whether K1 < K2 includes determining whether K1 < K2 when the washing machine is not in the drying stage; wherein, the method for determining whether the washing machine is in the drying stage includes: calculating the temperature change value K5 measured by the temperature sensing module within the time T; determining whether K5 is greater than a third preset value z; if not, determining that the washing machine is not in the drying stage.

[0018] Beneficial effects:

[0019] By applying the washing machine and detection method in this embodiment to real life, when the lint in the washing machine or dryer accumulates to a certain level, a fault prompt or automatic processing can be issued in time, avoiding the situation where the drying function cannot be used normally due to excessive accumulation of lint and serious blockage, affecting the user experience, and solving the technical problem of the dryer lint accumulation that cannot be cleaned in time in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 1 is a simplified structural diagram of a washing machine used in an embodiment of the present invention;

[0021] Figure 2 It is a flow chart of the detection method adopted in the embodiment of the present invention.

[0022] The above drawings include the following reference numerals:

[0023] 1. Washing drum; 11. Washing chamber; 12. Detection chamber; 13. Inner cylinder; 131. Partition; 132. Connecting plate; 133. Support plate; 14. Drying port; 15. Mounting plate; 2. First air outlet; 3. Second air outlet; 4. Drying structure; 41. Air outlet channel; 42. Fan component; 43. Heating component; 44. Return port; 5. First drying channel; 51. Accommodating chamber; 511. Connecting port; 6. Second drying channel; 7. Condensation channel; 8. Third drying channel; 9. Condensate inlet. DETAILED DESCRIPTION

[0024] 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.

[0025] According to an embodiment of the present invention, a washing machine is provided. Figures 1 to 2 , including: a washing drum 1, which has a washing chamber 11 and a detection chamber 12; a first air outlet 2, which is arranged on the washing drum 1, and the washing chamber 11 and the detection chamber 12 are connected through the first air outlet 2; a second air outlet 3, which is arranged on the washing drum 1, and the second air outlet 3 is arranged at an interval from the first air outlet 2; the washing chamber 11 and the detection chamber 12 are connected through the second air outlet 3; a drying structure 4, the drying structure 4 has a first drying channel 5 and a second drying channel 6 located in the washing chamber 11; when the drying structure 4 passes drying fluid into the washing chamber 11, the drying fluid in the first drying channel 5 enters the detection chamber 12 through the first air outlet 2, and the drying fluid in the second drying channel 6 enters the detection chamber 12 through the second air outlet 3; a temperature sensing module, which is arranged in the detection chamber 12 to measure the temperature of the fluid in the detection chamber 12.

[0026] By setting the first air outlet 2 and the second air outlet 3, the drying fluid is circulated. When the drying fluid enters the washing chamber 11, a first drying channel 5 flowing toward the first air outlet 2 and a second drying channel 6 flowing toward the second air outlet 3 are formed. Figure 1 The first drying channel 5 does not pass through the washing chamber 11 and flows directly into the first air outlet 2. The second drying channel 6 flows into the second air outlet 3 after passing through the washing chamber 11. The temperature of the drying fluid flowing out of the second drying channel 6 is generally lower than the temperature of the drying fluid flowing out of the first drying channel 5. After the above two fluid temperatures are mixed in the detection chamber 12, the temperature detected by the temperature sensing module is compared with the system set temperature. It can be judged whether the air outlet of the first air outlet 2 and the second air outlet 3 is normal, and thus it can be judged whether the first air outlet 2 and the second air outlet 3 are blocked by lint. When the lint accumulates to a certain extent, a fault prompt or automatic processing is issued in time, avoiding the situation where the drying function cannot be used normally due to excessive accumulation of lint and serious blockage, which affects the user experience. This solves the technical problem that the lint accumulation in the dryer cannot be cleaned in time in the related art.

[0027] In the washing machine of this embodiment, see Figure 1An inner drum body 13 is provided in the washing drum 1, and the inner drum body 13 includes a partition 131 provided in the washing chamber 11. The first drying channel 5 is located on one side of the partition 131. A accommodating chamber 51 for placing clothes is provided on the side of the partition 131 away from the first drying channel 5. After the second drying channel 6 passes through the accommodating chamber 51, it reaches the second air outlet 3.

[0028] In this way, the drying fluid flowing through the second drying channel 6 passes through most areas of the washing chamber 11 to dry the clothes in the washing chamber 11, while the drying fluid flowing through the first drying channel 5 does not pass through the washing chamber 11, so the heat loss is less. Therefore, the temperature of the drying fluid flowing out of the second drying channel 6 is lower than the drying fluid flowing out of the first drying channel 5. Therefore, the lint blockage status of the first air outlet 2 and the second air outlet 3 can be judged according to the temperature change of the mixed fluid in the detection chamber 12.

[0029] In the washing machine of this embodiment, see Figure 1 The inner cylinder 13 includes a connecting plate 132, one end of which is connected to the partition 131. A support plate 133 is provided at the other end of the connecting plate 132. The support plate 133, connecting plate 132, and partition 131 form a receiving chamber 51. The receiving chamber 51 has a communication port 511 on the side away from the connecting plate 132 that communicates with the receiving chamber 51. The second drying duct 6 communicates with the receiving chamber 51 through the communication port 511. Thus, drying fluid passing through the second drying duct 6 enters the receiving chamber 51 through the communication port 511.

[0030] In the washing machine of this embodiment, see Figure 1 The inner wall of the washing drum 1 is provided with a drying port 14, located opposite the communication port 511. The drying structure 4 includes an air outlet duct 41, which houses a fan component 42 and a heating component 43. A return port 44 is provided on the inner wall of the air outlet duct 41, connecting the air outlet duct 41 to the detection chamber 12. This allows the drying fluid in the first drying duct 5 and the second drying duct 6 to be dried and temperature-detected before returning to the drying structure 4 through the return port 44. This avoids unnecessary energy waste caused by the dryer extracting air and improves drying efficiency.

[0031] In the washing machine of this embodiment, see Figure 1 A condensation channel 7 is provided between the connecting plate 132 and the washing tub 1. One end of the condensation channel 7 communicates with the first drying channel 5, and the other end of the condensation channel 7 communicates with the second drying channel 6. Thus, the drying fluid in the first drying channel 5 and the second drying channel 6 passes through the condensation channel 7 for condensation water heat exchange, thereby reducing the temperature and humidity of the drying fluid entering the drying structure 4.

[0032] Specifically, a condensed water inlet 9 is provided at one end of the condensation channel 7 , and the condensed water generated after the condensed water heat exchange enters the condensed water inlet 9 .

[0033] In the washing machine of this embodiment, see Figure 1 The washing drum 1 includes a mounting plate 15, which is spaced apart from the connecting plate 132. The condensation channel 7 is located between the mounting plate 15 and the connecting plate 132. The first air outlet 2 and the second air outlet 3 are both arranged on the mounting plate 15. The detection chamber 12 is located on the side of the condensation channel 7 away from the mounting plate 15.

[0034] Specifically, the washing machine of this embodiment further includes a third drying channel 8. The drying fluid in the third drying channel 8 enters the accommodating cavity 51 through the connecting port 511, passes through the accommodating cavity 51, reaches the first air outlet 2, enters the condensation channel 7 for condensation water heat exchange, and then enters the detection cavity 12 to mix with the drying fluid flowing out of the first drying channel 5 and the second drying channel 6 to participate in temperature measurement.

[0035] The detection method of this embodiment is applicable to the above-mentioned washing machine. The detection method is used to determine whether the first air outlet 2 or the second air outlet 3 is in a dirty and blocked state. The detection method includes: measuring the temperature value K in the detection chamber 12 by the temperature sensing module of the washing machine; obtaining a first threshold value K1 based on K; determining whether K1 is less than K2; if so, determining that the second air outlet 3 is in a dirty and blocked state; if not, determining that the first air outlet 2 is in a dirty and blocked state; wherein K2 is the second threshold value, K2 is obtained based on the temperature measured by the temperature sensing module when the first air outlet 2 and the second air outlet 3 are in a normal state. Thus, when K1 is less than K2, it indicates that the temperature in the detection chamber 12 is lower than the set temperature K2, that is, the drying fluid flow rate of the first air outlet 2 is small, indicating that the first air outlet 2 is blocked by lint; when K1 is greater than K2, it indicates that the temperature in the detection chamber 12 is greater than the set temperature K2, that is, the drying fluid flow rate of the second air outlet 3 is small, indicating that the second air outlet 3 is blocked by lint.

[0036] In the detection method of this embodiment, see Figure 2 The calculation method of the first threshold K1 is: within the time T, record the K measured by the temperature sensing module at different times to obtain multiple K, and the first threshold K1 is the average value of the multiple K.

[0037] In the detection method of this embodiment, see Figure 2The method for measuring the temperature value K within the detection chamber 12 using the temperature sensing module of the washing machine includes: weighing the clothes in the washing chamber 11 to determine whether the weight g of the clothes is less than a third threshold G; if so, controlling the temperature sensing module to stop measurement; if not, controlling the temperature sensing module to measure K. Thus, with the above settings, when drying a small amount of clothes, the detection method of this embodiment is not used to avoid misjudgment because a small amount of clothes heats up faster during the drying process and the drying is completed more quickly. In daily use, medium-weight clothes are generally dried, so not detecting a small amount of clothes will not affect the early warning and removal of accumulated lint.

[0038] In the detection method of this embodiment, see Figure 2 The method for obtaining the first threshold value K1 based on K includes: measuring K after drying the clothes and before dehumidifying the accommodating cavity 51 of the washing machine; selecting the maximum value K3 and the minimum value K4 of K within time t; calculating K0=K3-K4; determining whether K0 is less than or equal to n; if so, calculating K1; if not, controlling the temperature sensing module to remeasure K.

[0039] Specifically, a typical drying process is as follows: drying and dehydration - drying temperature rise - drying dryness determination (dehumidification) - drying temperature drop - completion. Temperature K is recorded starting from the drying dryness determination (dehumidification phase, when the condensation valve opens and condensation begins). In some drying processes, after the drying temperature rise, there is a dehydration phase and condensation occurs, which can cause the temperature inside the drum to drop and become unstable. Therefore, if temperature K does not rise rapidly after a period of time after condensation begins, it can be considered that the dehumidification phase has entered a stable state.

[0040] Specifically, if the temperature change amplitude of K within time t is less than n, it means that the dehumidification has entered the stable dehumidification (drying and dryness) stage, and the temperature is stable. Starting to detect the temperature K1 at this time can effectively ensure the accuracy of the detection result.

[0041] In the detection method of this embodiment, see Figure 2 The method for determining whether K1 is less than K2 includes determining whether K1 is less than K2 when the washing machine is not in the drying stage; wherein the method for determining whether the washing machine is in the drying stage includes: calculating a temperature change value K5 measured by a temperature sensing module within a time T; determining whether K5 is greater than a third preset value z; if not, determining that the washing machine is not in the drying stage.

[0042] Specifically, the drying and dryness determination phase can be divided into two phases: a stable dehumidification phase, during which the temperature changes at various points within the drum are minimal; and a dryness determination phase, during which the temperatures at various points vary significantly. Dryness is determined when the temperature changes reach a certain level. This condition is included here to prevent the detection method in this embodiment from entering the dryness determination phase, thereby preventing the accuracy of the detection results from being affected by large temperature changes.

[0043] Specifically, the second air outlet 3 is generally not easily dirty or blocked, and can be automatically cleaned during a normal washing process.

[0044] Specifically, a spray valve may be provided on the rear drum or the condensation channel 7 of the washing machine of this embodiment, so as to automatically flush the first air outlet 2 .

[0045] After testing, it was found that the fluid temperature of the second drying channel 6 after condensation is 30-45°C (the temperature during the entire drying process, the temperature during the dehumidification stage is about 35°C), the fluid temperature of the third drying channel 8 after condensation is about 40°C, and the fluid temperature of the first drying channel 5 after condensation is 90°C. The maximum temperature of the fluid after mixing the three channels is about 70°C.

[0046] When the first air outlet 2 is blocked, the air volume of the second drying channel 6 increases, the air volume of the first drying channel 5 and the third drying channel 8 decreases, and the temperature K1 decreases. When K1 < K2, it can be determined that the first air outlet 2 is blocked.

[0047] When the second air outlet 3 is dirty and blocked, the air volume of the second drying channel 6 decreases, the air volume of the first drying channel 5 and the third drying channel 8 increases, and the temperature K1 increases. When K1>K2, it can be determined that the second air outlet 3 is dirty and blocked.

[0048] In some embodiments, the diameter of the first air outlet 2 is 20 mm and 26 mm respectively. In the stable dehumidification stage, the temperature K1 differs by more than 5° C., and both can be dried normally, with the drying efficiency varying within 10%.

[0049] By applying the washing machine and detection method in this embodiment to real life, when the lint in the washing machine or dryer accumulates to a certain level, a fault prompt or automatic processing can be issued in time, avoiding the situation where the drying function cannot be used normally due to excessive accumulation of lint and serious blockage, affecting the user experience, and solving the technical problem of the dryer lint accumulation that cannot be cleaned in time in the related technology.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0051] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0052] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0053] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above-mentioned computer-readable storage medium. Based on this understanding, the technical solution of the present application, 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, which is stored in a storage medium and includes several instructions for enabling one or more computer devices (which can be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application.

[0054] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0055] In the several embodiments provided in this application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units is merely 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. In addition, 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, and can be electrical or other forms.

[0056] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0057] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0058] 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 detection method, applicable to a washing machine, characterized in that: The washing machine comprises: A washing drum (1), wherein the washing drum (1) has a washing chamber (11) and a detection chamber (12); A first air outlet (2) is provided on the washing drum (1), and the washing chamber (11) and the detection chamber (12) are connected through the first air outlet (2); A second air outlet (3) is provided on the washing drum (1), the second air outlet (3) being spaced apart from the first air outlet (2); the washing chamber (11) and the detection chamber (12) are connected via the second air outlet (3); A drying structure (4), the drying structure (4) having a first drying channel (5) and a second drying channel (6) located in the washing chamber (11); when the drying structure (4) introduces a drying fluid into the washing chamber (11), the drying fluid in the first drying channel (5) enters the detection chamber (12) through the first air outlet (2), and the drying fluid in the second drying channel (6) enters the detection chamber (12) through the second air outlet (3); A temperature sensing module is arranged in the detection cavity (12) to measure the temperature of the fluid in the detection cavity (12); The detection method is used to determine whether the first air outlet (2) or the second air outlet (3) is in a dirty or blocked state, and the detection method comprises: Measuring the temperature value K in the detection cavity (12) by the temperature sensing module of the washing machine; obtaining a first threshold value K1 according to K; Determine whether K1 < K2; If so, it is determined that the second air outlet (3) is in the dirty and blocked state; if not, it is determined that the first air outlet (2) is in the dirty and blocked state; wherein K2 is a second threshold value, and K2 is obtained based on the temperature measured by the temperature sensing module when the first air outlet (2) and the second air outlet (3) are in a normal state.

2. The detection method according to claim 1, wherein An inner drum (13) is provided in the washing drum (1), the inner drum (13) comprising a partition (131) provided in the washing chamber (11), the first drying channel (5) being located on one side of the partition (131), a receiving chamber (51) for placing clothes being provided on a side of the partition (131) away from the first drying channel (5), and the second drying channel (6) passing through the receiving chamber (51) reaches the second air outlet (3).

3. The detection method according to claim 2, characterized in that The inner cylinder (13) comprises a connecting plate (132), one end of the connecting plate (132) is connected to the partition (131), and the other end of the connecting plate (132) is provided with a support plate (133); the support plate (133), the connecting plate (132) and the partition (131) enclose the accommodating chamber (51), and a communication port (511) communicating with the accommodating chamber (51) is provided on a side of the accommodating chamber (51) away from the connecting plate (132); the second drying channel (6) is communicated with the accommodating chamber (51) through the communication port (511).

4. The detection method according to claim 3, characterized in that The washing drum (1) is provided with a drying port (14) on the inner wall thereof, which is arranged opposite to the communication port (511); the drying structure (4) comprises an air outlet channel (41); a fan component (42) and a heating component (43) are provided in the air outlet channel (41); a return port (44) is provided on the inner wall surface of the air outlet channel (41); the air outlet channel (41) is communicated with the detection chamber (12) via the return port (44).

5. The detection method according to claim 3, characterized in that A condensation channel (7) is provided between the connecting plate (132) and the washing tub (1); one end of the condensation channel (7) is in communication with the first drying channel (5), and the other end of the condensation channel (7) is in communication with the second drying channel (6).

6. The detection method according to claim 5, characterized in that The washing drum (1) comprises a mounting plate (15), the mounting plate (15) and the connecting plate (132) are arranged at intervals, the condensation channel (7) is located between the mounting plate (15) and the connecting plate (132), the first air outlet (2) and the second air outlet (3) are both arranged on the mounting plate (15); and the detection chamber (12) is located on a side of the condensation channel (7) away from the mounting plate (15).

7. The detection method according to claim 6, characterized in that The calculation method of the first threshold K1 is: Within a time period T, the K measured by the temperature sensing module at different times is recorded to obtain a plurality of K values, and the first threshold value K1 is an average value of the plurality of K values.

8. The detection method according to claim 7, characterized in that The method for measuring the temperature value K in the detection cavity (12) by the temperature sensing module of the washing machine comprises: The clothes in the washing chamber (11) are weighed to determine whether the weight g of the clothes is less than a third threshold value G; if so, the temperature sensing module is controlled to stop measuring; if not, the temperature sensing module is controlled to measure K.

9. The detection method according to claim 7, characterized in that The method for obtaining the first threshold K1 according to K includes: After drying the clothes and before dehumidifying the accommodating cavity (51) of the washing machine, measuring K; Select the maximum value K3 and the minimum value K4 of K within time t; calculate K0=K3-K4; determine whether K0 is less than or equal to n; if so, calculate K1; if not, control the temperature sensing module to remeasure K.

10. The detection method according to claim 9, characterized in that: The method for determining whether K1 < K2 includes determining whether K1 < K2 when the washing machine is not in the drying stage; wherein the method for determining whether the washing machine is in the drying stage includes: Calculate the temperature change value K5 measured by the temperature sensing module within the time T; determine whether K5 is greater than a third preset value z; if not, determine that the washing machine is not in the drying stage.

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