Clothes processing equipment air port blockage detection method and clothes processing equipment

Abstract

The present application relates to the field of clothing processing, and more specifically, to a method for detecting blockage of an air outlet of a clothing processing device and a clothing processing device, the method comprising obtaining a first water temperature after the condensed water in the second condensing air duct condenses the drying air flow; and determining whether the first filter is blocked based on the temperature of the first water temperature. When the first vent is blocked, the drying air flow in the clothing processing device will enter the second condensing air duct. Since the flow area of ​​the second vent is larger than that of the first vent, the condensed water in the second condensing air duct undergoes more heat exchange, causing the water temperature of the condensed water to rise. As a result, it is possible to determine whether the first vent is blocked based on the temperature of the first water temperature. Since the blockage of the first vent can be known in a timely manner, it is convenient to clean the first vent in a timely manner to ensure drying efficiency.

Description

Technical Field

[0001] The present application relates to the field of clothing processing, and in particular to a method for detecting air port blockage in clothing processing equipment and the clothing processing equipment. Background Art

[0002] Most washing and drying machines on the market use electric heating to automatically dry clothes. The most common type is the drum type, and they come in two exhaust styles: direct exhaust and condensing. Condensing washer-dryers typically dry the air by passing cold water through the condensing duct, exchanging heat with the hot, humid air. This condenses the moisture into droplets and drains them outside the machine. During use, the duct can become clogged with lint, which can easily clog the air filter. Since clogs are difficult to detect, drying efficiency is reduced. Summary of the Invention

[0003] The present application provides a method for detecting air vent blockage in a clothing processing device and a clothing processing device, so as to at least solve the technical problem that it is difficult to detect the reduction in drying efficiency due to air vent blockage.

[0004] According to a first aspect of an embodiment of the present application, a method for detecting blockage of an air outlet of a clothes processing device is provided, which is applied to the clothes processing device, the clothes processing device comprising an inner drum and an outer drum, a first condensation duct being formed between the inner drum and the outer drum, a second condensation duct being provided on a side of the outer drum away from the inner drum, a second vent and a first vent being provided on a bottom wall of the outer drum, at least part of the drying air in the outer drum passing through the first condensation duct enters an upper portion of the second condensation duct from the first vent, and at least part of the drying air in the outer drum passes through the second vent and enters a lower portion of the second condensation duct, a flow area of ​​the second vent being greater than a flow area of ​​the first vent, the second vent being provided with a second filter, and the first vent being provided with a first filter, the detection method being used to detect blockage of the first vent, the detection method comprising:

[0005] Obtaining a first water temperature after the drying airflow is condensed by the condensed water in the second condensing air duct;

[0006] Determine whether the first filter screen is clogged based on the first water temperature.

[0007] Optionally, determining whether the first filter screen is clogged according to the first water temperature includes:

[0008] When the first water temperature exceeds a preset target threshold, determining that the first filter is clogged;

[0009] When the first water temperature does not exceed the target threshold, it is determined that the first filter is not clogged.

[0010] Optionally, the method further includes:

[0011] When the first water temperature exceeds a preset target threshold, a filter cleaning instruction is generated, wherein the filter cleaning instruction is used to control the cleaning device to clean the air outlet when the clothes processing device is in the target state next time.

[0012] Optionally, obtaining the first water temperature after the drying airflow is condensed by the condensed water in the second condensation air duct includes:

[0013] The temperature collected by the temperature sensing package in the clothes processing device is obtained, wherein the temperature sensing package is located on the condensed water flow path and is arranged close to the second vent.

[0014] Optionally, the first water temperature is an average value of the condensed water temperature within a preset period after being within a preset fluctuation threshold interval.

[0015] Optionally, before obtaining the first water temperature after the condensed water in the second condensation air duct condenses the drying airflow, the method further includes:

[0016] In response to the detection signal, controlling the condensation valve to open for a preset time period;

[0017] Obtaining a second water temperature of the condensed water;

[0018] When the second water temperature is within a preset water temperature threshold range, waiting to respond to a condensed water inlet signal;

[0019] When the second water temperature exceeds the water temperature threshold range, a drying process is executed.

[0020] Optionally, determining whether the second vent is blocked according to the first water temperature includes:

[0021] The degree of dirtiness and blockage is retrieved from a preset water temperature table according to the first water temperature, and whether blockage occurs is determined based on the degree of dirtiness and blockage, wherein the water temperature table includes multiple threshold intervals, and each threshold interval corresponds to a different degree of dirtiness and blockage.

[0022] According to a second aspect of an embodiment of the present application, a clothes processing device is provided, applying the above-mentioned detection method, the clothes processing device includes an inner drum and an outer drum, a drying air duct is formed between the inner drum and the outer drum, the drying air duct includes the inner drum and the outer drum, a first condensing air duct is formed between the inner drum and the outer drum, a second condensing air duct is provided on a side of the outer drum away from the inner drum, a second vent and a first vent are provided on the bottom wall of the outer drum, at least part of the drying air in the outer drum passes through the first condensing air duct and then enters the upper part of the second condensing air duct from the first vent, and at least part of the drying air in the outer drum passes through the second vent and enters the lower part of the second condensing air duct, the flow area of ​​the second vent is larger than the flow area of ​​the first vent; the first vent is provided with a first filter, and the second vent is provided with a second filter;

[0023] The second vent and the first vent are arranged at different heights along the bottom of the outer tube, wherein the second vent is arranged at the lower part of the bottom wall of the outer tube, and the first vent is arranged at the upper part of the bottom wall of the outer tube;

[0024] The hot and humid drying airflow in the inner cylinder enters the outer cylinder from the inner cylinder, part of it enters the second condensation duct through the second ventilation port, and part of it enters the first ventilation port after passing through the first condensation duct, and then mixes with the outlet air of the second condensation duct through the first ventilation port.

[0025] Optionally, the clothes processing device further comprises a collection box located at the lower end of the outer drum, the collection box being in communication with both the second condensation air duct and the first condensation air duct, and being used for storing condensed water;

[0026] The collecting box is connected to a water pump, a first water outlet of the water pump is connected to a first water pipe, and an end of the first water pipe away from the water pump extends to the first filter screen;

[0027] The first water outlet is further connected to a second water pipe, and an end of the second water pipe away from the water pump extends to the second filter screen;

[0028] The second water outlet of the water pump is connected to the third water pipe, the third water pipe is connected to the water diversion valve, and the water outlet of the water diversion valve is connected to the fourth water pipe and the fifth water pipe respectively;

[0029] An end of the fourth water pipe away from the water diversion valve extends to the door seal and the glass bowl of the laundry processing device;

[0030] One end of the fifth water pipe away from the water diversion valve extends to the inner bottom wall of the outer cylinder.

[0031] According to a third aspect of an embodiment of the present application, a method for clearing blocked air vents is provided, which is applied to the above-mentioned clothes processing device, comprising:

[0032] In response to the filter cleaning instruction, the water pump is controlled to start, so as to transport the condensed water in the collection box to the first filter through the first water pipe to clean the first filter.

[0033] Optionally, the method further includes:

[0034] When the drying process is completed, the water pump is controlled to deliver water to the first water pipe according to the water level of the condensed water detected by the liquid level sensor in the collection box to clean the first filter screen and the inner bottom wall of the outer cylinder.

[0035] Optionally, the method further includes:

[0036] After the drying process is completed, it is determined whether the water level of the condensed water in the collection box reaches the preset cleaning threshold;

[0037] If the cleaning threshold is reached, the water pump is controlled to send water to the third water pipe to clean the glass bowl and the outer cylinder;

[0038] If the cleaning threshold is not reached, the water pump is controlled to deliver water to the third water pipe, and the glass bowl spray pipe is controlled to spray water to clean the glass bowl.

[0039] In an embodiment of the present application, when the first vent is clogged, the drying airflow from the laundry processing device enters the second condensation duct. Because the flow area of ​​the second vent is larger than that of the first vent, the condensed water in the second condensation duct undergoes more heat exchange, causing the condensed water temperature to rise. This allows the determination of whether the first vent is clogged based on the first water temperature. Promptly detecting the blockage of the first vent facilitates timely cleaning of the first vent, ensuring drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a flow chart of a method for detecting air vent blockage in a clothing processing device in one embodiment of the present application.

[0041] Figure 2 This is a temperature rise curve of different dirtiness levels of the first condensation air duct in a clothing processing device in an embodiment of the present application.

[0042] Figure 3 This is an overall flow chart of a method for detecting air port blockage in a washing machine in one embodiment of the present application.

[0043] Figure 4 This is a rear view of a clothing processing device in one embodiment of the present application.

[0044] Figure 5 It is a side view of a clothing processing device in one embodiment of the present application.

[0045] Figure 6 It is a front view of a clothing processing device in one embodiment of the present application.

[0046] Figure 7 This is a top view of a clothing processing device in one embodiment of the present application.

[0047] Figure 8 It is a structural schematic diagram of the second vent and the first vent in one embodiment of the present application.

[0048] Explanation of the numbers: 1. Outer cylinder; 2. Inner cylinder; 3. Second condensation duct; 31. Second vent; 4. First condensation duct; 41. First vent; 5. Fan duct; 6. Water level detection box; 61. Water inlet; 62. Water level detection chamber; 7. Water level detector; 8. Collection box; 9. Water pump; 10. Multi-way connector; 11. First water pipe; 12. Second water pipe; 13. Third water pipe; 14. Water diversion valve; 15. Fourth water pipe; 16. Fifth water pipe; 17. Door seal; 18. Glass bowl; 19. Guide strip. DETAILED DESCRIPTION

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

[0050] It should be noted that the terms "first", "second", etc. in the specification 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] According to an embodiment of the present application, an embodiment of a method for detecting blockage of an air outlet of a clothing processing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0052] like Figure 1 As shown, the method is applied to a clothes processing device, the clothes processing device includes an inner drum and an outer drum, a first condensing air duct is formed between the inner drum and the outer drum, a second condensing air duct is provided on a side of the outer drum away from the inner drum, a second vent and a first vent are provided on the bottom wall of the outer drum, at least part of the drying air in the outer drum passes through the first condensing air duct and enters the upper part of the second condensing air duct from the first vent, and at least part of the drying air in the outer drum passes through the second vent and enters the lower part of the second condensing air duct, the flow area of ​​the second vent is larger than the flow area of ​​the first vent, the second vent is provided with a second filter, and the first vent is provided with a first filter, the detection method is used to detect the blockage of the first vent of the first condensing air duct, and the detection method includes the following steps:

[0053] S101, obtaining a first water temperature after condensation water in the second condensation air duct condenses the drying airflow.

[0054] In one embodiment, the first water temperature is the temperature of the condensed water after heat exchange with the dry airflow. The first water temperature may be the temperature of the condensed water at a specific moment or the average temperature of the condensed water over a period of time, and this embodiment does not impose any specific limitations thereon. The first water temperature is intended to reflect the temperature of the condensed water after condensing the dry airflow.

[0055] It should be noted that the first water temperature may be the temperature of the condensed water in the second condensation duct, or the temperature of the condensed water mixed in the second condensation duct and the first condensation duct.

[0056] S102: Determine whether the first filter is clogged based on the first water temperature.

[0057] The temperature condition of the first water temperature refers to the temperature of the first water temperature, that is, a specific value.

[0058] Through the above steps, when the first vent is clogged, the drying airflow in the clothes processing device will enter the second condensation duct. Because the flow area of ​​the second vent is larger than that of the first vent, the condensed water in the second condensation duct undergoes more heat exchange, causing the condensed water temperature to rise. Therefore, based on the temperature of the first water, it is possible to determine whether the first vent is clogged. Since the blockage of the first vent can be detected in a timely manner, it is convenient to clean the first vent in a timely manner to ensure drying efficiency.

[0059] In another embodiment of the present application, generating a detection result according to the temperature of the first water temperature includes:

[0060] When the first water temperature exceeds a preset target threshold, determining that the first filter is clogged;

[0061] When the first water temperature does not exceed the target threshold, it is determined that the first filter is not clogged.

[0062] In one embodiment, because the flow area of ​​the first vent is smaller than that of the second vent, the condensation efficiency of the second condensation duct is lower than that of the first condensation duct. Therefore, the same 10 units of airflow in the first condensation duct may cause the condensed water temperature in the first condensation duct to rise by 3 degrees. However, after the air outlet of the first condensation duct is blocked, the airflow that should have entered the first condensation duct all enters the second condensation duct. Due to the higher condensation efficiency of the second condensation duct, the 10 units of airflow in the second condensation duct causes the condensed water temperature in the second condensation duct to rise by 5 degrees. Therefore, when the first water temperature exceeds the target threshold, it proves that the air outlet of the first condensation duct is blocked; otherwise, it is not blocked.

[0063] The target threshold can be obtained by changing the blockage of the first condensing air duct. For example, if the air outlet of the first condensing air duct is blocked, the temperature of the condensed water is measured. Then, after the air outlet of the second cooling air duct is cleared and unblocked, the temperature of the cooling water is measured. The target threshold can be determined by comparison. The target threshold represents the temperature of the condensed water after condensing the dry air flow when the air outlet of the first condensing air duct is blocked.

[0064] In another embodiment of the present application, the method further comprises:

[0065] When the first water temperature exceeds a preset target threshold, a filter cleaning instruction is generated, wherein the filter cleaning instruction is used to control the cleaning device to clean the air outlet when the clothes processing device is in the target state next time.

[0066] When the first water temperature exceeds the target threshold, it indicates that the first condensing air duct is clogged. At this point, not only is a test result generated, but a filter cleaning instruction is also generated to clean the air outlet of the first condensing air duct and eliminate the blockage. Specifically, the filter cleaning instruction takes effect the next time the clothes processing device is in the target state. This not only minimizes the impact on the current operation of the clothes processing device, but also ensures that the air outlet of the first condensing air duct is cleaned before the next drying cycle, helping to ensure drying quality.

[0067] In another embodiment of the present application, obtaining the first water temperature after the drying airflow is condensed by the condensed water in the second condensation air duct includes:

[0068] The temperature collected by the temperature sensing package in the clothes processing device is obtained, wherein the temperature sensing package is located on the condensed water flow path and is arranged close to the second vent.

[0069] It should be noted that the laundry processing device already has a hydroelectric heating temperature sensor installed, and the hydroelectric heating temperature sensor is located in the condensate flow path. Therefore, when obtaining the condensate temperature in this embodiment, there is no need to add additional temperature measurement hardware to the laundry processing device, which reduces costs and saves internal space.

[0070] In another embodiment of the present application, the first water temperature is an average value of the condensed water temperature within a preset period after being in a preset fluctuation threshold interval.

[0071] In one embodiment, after the condensate enters the water, the temperature collected by the temperature sensor is continuously recorded. If the temperature fluctuates within a small range over n minutes, it indicates that the first water temperature is within the fluctuation threshold. The average temperature obtained over m minutes is then calculated, where m is a preset period, which can be equal to n.

[0072] Through the above steps, the average value is used to reflect the temperature of the condensed water, thereby generating a test result, which helps to improve the accuracy of the test result.

[0073] In another embodiment of the present application, before obtaining the first water temperature after the condensed water in the second condensation air duct condenses the drying airflow, the method further includes:

[0074] In response to the detection signal, controlling the condensation valve to open for a preset time period;

[0075] Obtaining a second water temperature of the condensed water;

[0076] When the second water temperature is within a preset water temperature threshold range, waiting to respond to a condensed water inlet signal;

[0077] When the second water temperature exceeds the water temperature threshold range, a drying process is executed.

[0078] In one embodiment, the condensed water inlet signal is a signal used to indicate that the condensed water inlet needs to be controlled. This embodiment does not specifically limit the triggering conditions and triggering time of the condensed water inlet signal. At the same time, the specific content and form of the condensed water inlet signal are also not limited. For ease of understanding, for example, in one application scenario, after the clothing processing device is started, the clothes are washed, dehydrated and weighed, and then a preset processing program is installed to turn off the fan, electric heating device and drain pump. At this time, the signal to turn off the fan, electric heating device and drain pump can be used as the condensed water inlet signal. In another application scenario, after the clothing processing device is started, the triggered processing program includes a drying program, such as washing and drying or drying care. When switching the drying program, the switching signal can be regarded as the condensed water inlet signal. In other words, any signal can be used as the condensed water inlet signal, and the specific method can be determined according to the actual situation.

[0079] In one embodiment, the control of the condensed water inlet is achieved by controlling the opening of the condensation valve, and can also be achieved by controlling the start of a pump-type device, so as to allow the condensed water to enter the clothing processing device.

[0080] In one embodiment, the detection signal and the condensation water inlet signal have the same principle, and either signal can be used as the condensation water inlet signal. The specific method can be determined according to the actual situation. The difference is that the detection signal should be generated first, and then the condensation water inlet signal should be generated. The detection signal is used to detect whether the temperature of the condensation water is within the normal threshold range. If the temperature of the condensation water used in the drying process is too high, it cannot exchange heat with the drying airflow because no temperature difference can be formed; if the temperature of the condensation water is too low, it will freeze or cause the temperature rise curve to be unclear, where the temperature rise curve is as follows: Figure 2 Therefore, it is necessary to use condensed water within the water temperature threshold range for drying and condensing.

[0081] In one embodiment, the condensation valve is only opened for a preset period of time to ensure that a certain amount of condensed water enters the clothing processing equipment and the temperature can be detected by the temperature sensing package. Since drying has not started at this time, the second water temperature is the temperature of the condensed water itself, and no heat exchange occurs with the drying airflow.

[0082] Through the above steps, before executing the drying program, the temperature of the condensed water entering the clothing processing equipment is first tested to ensure that the water temperature of the condensed water used in the drying process meets the standard, ensuring the drying effect and the detection effect of air outlet blockage.

[0083] In another embodiment of the present application, the determining whether the first filter is clogged according to the first water temperature includes:

[0084] The degree of dirtiness and blockage is retrieved from a preset water temperature table according to the first water temperature, and whether blockage occurs is determined based on the degree of dirtiness and blockage, wherein the water temperature table includes multiple threshold intervals, and each threshold interval corresponds to a different degree of dirtiness and blockage.

[0085] Through the above steps, different first water temperatures can reflect different blockage levels of the first condensing air duct air outlet. Different blockage levels require different cleaning frequencies, which can more accurately reflect the air outlet blockage situation and thus formulate a reasonable cleaning plan.

[0086] For ease of understanding, let's take a washing machine as an example. Figure 3 As shown in FIG, after the washing machine is started, it executes the water filling, washing, draining, dehydration and weighing procedures. Then, the fan, electric heating device and drain pump are controlled to be turned off. At this time, in response to the condensation water inlet signal, the condensation valve is opened for t seconds.

[0087] Record the temperature of the hydroelectric heating temperature-sensing package, that is, the second temperature.

[0088] It is determined whether the second temperature T is between A and B, that is, whether the second temperature is within the water temperature threshold range.

[0089] If not, start the drain pump and run the drying program normally until it ends or a fault is reported.

[0090] If it is, the drain pump is turned on and continues running until the heating phase ends. The drying phase consists of a heating phase and a condensing phase. During the heating phase, the electric heater is turned on to heat the drying airflow in the drying duct, causing the temperature inside the drying duct to rise rapidly. The condensing phase involves the entry of condensate water, which condenses the hot and humid drying airflow, increasing its dryness.

[0091] Then open the condensation valve to let the condensate in and record the temperature detected by the water-electric heating temperature sensing package. When the temperature value fluctuates within a small range within n minutes, take the average temperature within m (n* in the figure) minutes to obtain the first temperature.

[0092] It is determined whether the first temperature is less than or equal to a target threshold value L (T** in the figure).

[0093] If it is greater than L, it is determined that the upper air outlet of the first condensation air duct is dirty, and the user is reminded and rinsed during the next washing.

[0094] If it is less than or equal to L, it is judged as not dirty and the drying process continues to run until the end.

[0095] The present application also provides a clothes processing device, such as Figure 4-7As shown, applying the above-mentioned detection method, the clothes processing device includes an inner drum 2 and an outer drum 1, a drying air duct is formed between the inner drum 2 and the outer drum 1, and the drying air duct includes a second condensing air duct 3 and a first condensing air duct 4, and the condensing efficiency of the second condensing air duct 3 is greater than the condensing efficiency of the first condensing air duct 4;

[0096] The second condensation air duct 3 includes a second vent 31 and a first air outlet, and the second vent 31 is provided with a second filter; the first condensation air duct 4 is provided with a first vent 41, and the first vent 41 is provided with a first filter.

[0097] In one embodiment, the clothes processing device further includes a collection box 8 located at the lower end of the outer drum 1, the collection box 8 is connected to both the second condensation air duct 3 and the first condensation air duct 4, and is used to store condensed water;

[0098] The collecting box 8 is connected to a water pump 9, a first water outlet end of the water pump 9 is connected to a first water pipe 11, and an end of the first water pipe 11 away from the water pump 9 extends to the first filter screen;

[0099] The first water outlet is further connected to a second water pipe 12, and the second water pipe 12 extends from an end away from the water pump 9 to the second filter screen;

[0100] The second water outlet of the water pump 9 is connected to a third water pipe 13, the third water pipe 13 is connected to a water diversion valve 14, and the water outlets of the water diversion valve 14 are connected to a fourth water pipe 15 and a fifth water pipe 16 respectively;

[0101] The fourth water pipe 15 extends from one end of the water diversion valve 14 to the door seal 17 and the glass bowl 18 of the laundry processing device;

[0102] One end of the fifth water pipe 16 away from the water diversion valve 14 extends to the inner bottom wall of the outer tube 1 .

[0103] Specifically, for ease of understanding, the drying air duct in the above-mentioned clothes processing device includes a second condensing air duct 3, a first condensing air duct 4 and a fan air duct 5;

[0104] The second condensation air duct 3 is formed on the side of the outer tube 1 away from the inner tube 2. The second condensation air duct 3 includes a second vent 31 and a first air outlet. The second vent 31 is provided with a second filter.

[0105] The first condensation air duct 4 is formed between the outer tube 1 and the inner tube 2. The first condensation air duct 4 is provided with a first vent 41. The first vent 41 is provided with a first filter. The first vent 41 connects the first condensation air duct 4 with the second condensation air duct 3.

[0106] The second vent 31 and the first vent 41 are arranged at different heights along the rear bottom of the outer tube 1, wherein the second vent 31 is arranged at the lower part of the rear bottom of the outer tube 1, and the first vent 41 is arranged at the upper part of the rear bottom of the outer tube 1;

[0107] The first air outlet is located on the side wall of the second condensing air duct 3 and between the second vent 31 and the first vent 41; the first air outlet is connected to the inlet of the fan duct; the drying air in the first condensing air duct 4 is discharged from the first vent 41 and then enters the fan duct through the first air outlet;

[0108] A water level detection chamber 62 is formed at the bottom of the first condensation air duct 4, and the water level detection chamber 62 is connected to the first condensation air duct 4. A water level detector 7 is provided in the water level detection chamber 62. The height of the water level detection chamber 62 is lower than the horizontal plane where the central axis of the outer cylinder 1 is located.

[0109] In one embodiment, the clothes processing device further comprises a box body, and the outer tub 1 and the inner tub 2 are both installed inside the box body. Figure 5 As shown, the front end of the box is provided with an opening for putting in clothes, and the opening is provided with a door seal 17, and a glass bowl 18 is rotatably connected to the door seal 17. When the user uses the clothing processing device, he will rotate the glass bowl 18 to separate the glass bowl 18 from the door seal 17, and then put the clothes into the inner drum 2 from the opening. The side where the glass bowl 18 is provided is the front end of the box, and the side opposite to the front end is the rear end. Taking this direction as a reference, the opening of the inner drum 2 faces the front end of the box, and the surface of the inner drum 2 opposite to the opening is the rear bottom of the inner drum 2, and the rear bottom of the inner drum 2 is vertically arranged in the clothing processing device. The rear bottom of the outer drum 1 is parallel to the rear bottom of the inner drum 2. For the sake of convenience of description, the two surfaces of the rear bottom of the outer drum 1, the surface close to the inner drum 2 is called the inner bottom wall, that is, the bottom wall of the outer drum 1 on the inner side; the surface away from the inner drum 2 is called the outer bottom wall, that is, the bottom wall of the outer drum 1 on the outer side. For ease of understanding, Figure 1 The perspective in the middle shows the outer bottom wall of the outer tube 1. Figure 3 The inner bottom wall of the outer tube 1 is seen from the perspective in the figure. The inner bottom wall is located between the outer tube 1 and the inner tube 2. Figure 2 For example, Figure 2 The upper side is the upper part of the rear bottom of the outer tube 1. Figure 2 The lower side is the lower part of the rear bottom of the outer tube 1.

[0110] In one embodiment, the drying system includes a second condensation duct 3, a first condensation duct 4, and a fan duct 5. Both the second condensation duct 3 and the first condensation duct 4 are used to circulate condensed water, condensing the dry airflow to reduce the humidity of the dry airflow. A heating device is installed in the fan duct 5 or in the drying system to heat the dry airflow. The heated dry airflow first enters the inner drum 2, where it comes into contact with the clothes, drying them and carrying moisture from the clothes into the outer drum 1. It should be noted that since the first condensation duct 4 is formed between the outer drum 1 and the inner drum 2, the connection point between the inner drum 2 and the outer drum 1 can be considered the air inlet of the first condensation duct 4. Due to the differences in the structures of different clothing processing devices, some inner drums 2 are provided with multiple through-holes, through which the dry airflow in the inner drum 2 can pass into the outer drum 1 (i.e., into the first condensation duct 4). Some clothing processing devices do not have through-holes in the inner drum 2, but the inner drum 2 and the outer drum 1 are connected, and the dry airflow in the inner drum 2 enters the outer drum 1 through the connection point. That is to say, this embodiment does not limit the shape and position of the air inlet of the first condensation air duct 4 , nor does it limit the number of the air inlet of the first condensation air duct 4 .

[0111] Specifically, in one embodiment, the first condensation duct 4 refers to the space between the rear bottom of the inner tube 2 and the rear bottom of the outer tube 1. The condensed water flows downward along the inner side wall of the rear bottom of the outer tube 1 and comes into contact with the drying airflow in the first condensation duct 4 to achieve condensation.

[0112] After the drying airflow enters the outer drum 1, Figure 6 As shown, a part of the drying airflow flows upward along the first condensing air duct 4 and is finally discharged from the first vent 41; another part of the drying airflow enters the second vent 31 and enters the second condensing air duct 3 through the second vent 31. Figure 8 As shown, the dry airflow in the second condensing duct 3 flows upward along the duct wall of the second condensing duct 3, reaches the first air outlet, and then enters the fan duct 5 through the first air outlet. At the same time, the dry airflow discharged from the first ventilation port 41 enters the upper portion of the first condensing duct 4, passes through the first air outlet, and enters the fan duct 5. After being heated in the fan duct 5, the dry airflow enters the inner drum 2 again to dry the clothes, thus completing the circulation.

[0113] During the drying process, lint on the clothes or in the inner drum 2 flows with the drying airflow, so a second filter is provided at the second vent 31 and a first filter is provided at the first vent 41. It should be noted that filters can also be provided at other air openings in the drying duct, and this embodiment does not specifically limit this.

[0114] In one embodiment, the water level detection box 6 located in the first condensation air duct 4 is connected to the inner bottom wall of the outer cylinder 1. The connection method can be a fixed connection or a detachable connection, which is not specifically limited in this embodiment.

[0115] As described above, when the clothing processing device is in the condensation stage, condensed water enters the second condensation duct 3 and the first condensation duct 4. The drying airflow dries the condensed water upon contact, and the condensed water droplets from the drying airflow remain in the lower half of the outer drum 1 along with the condensed water. If the second filter or the first filter becomes clogged, the increased air volume in the second condensation duct 3 or the first condensation duct 4 doubles the condensation efficiency, doubling the amount of condensed water droplets. The increased amount of retained water causes the water level to rise, causing condensed water to enter the water level detection box 6 and increase the detection value of the water level detector 7, thereby confirming that a filter is clogged. This facilitates timely detection of filter clogs, allowing for timely cleaning of the filters and ensuring drying efficiency.

[0116] To facilitate understanding of how to detect blockage of the second filter or the first filter, in one embodiment, the ventilation volume of the second condensation duct 3 can be increased so that the amount of drying air entering the second condensation duct 3 is greater than the amount entering the first condensation duct 4, and the height of the second vent 31 is set below the first vent 41. In this way, since the height of the second vent 31 is low, during the operation of the clothing processing device, the second vent 31 is easily flushed by washing water or condensed water and is not easily blocked. The first vent 41 is easily blocked. Because the amount of drying airflow in the first condensation duct 4 is small, after the first vent 41 is blocked, all the drying airflow enters the second condensation duct 3. The condensation efficiency of the second condensation duct 3 will be doubled, so that the water droplets condensed by the drying airflow will double, which will increase the amount of retained water. The water enters the water level detection box 6, and the blockage of the first vent 41 is detected.

[0117] In another embodiment of the present application, the second vent 31 is located below the water level detection box 6 ; the first vent 41 is located at a height higher than the horizontal plane where the central axis of the outer cylinder 1 is located.

[0118] In one embodiment, Figure 4 Taking the perspective of the outer tube 1 as an example, the central axis of the outer tube 1 is a horizontal line passing through the midpoint of the height of the outer tube 1, and the horizontal plane where the central axis is located refers to a plane passing through the central axis and forming a horizontal plane. Figure 5 In the figure, the horizontal plane where the central axis is located is the horizontal line passing through the center of the outer cylinder 1.

[0119] like Figure 5 As shown, the diameter of the second vent 31 is larger than that of the first vent 41, and the highest point of the second vent 31 is lower than the lowest point of the water level detection box 6. The first vent 41 is above the horizontal plane where the central axis of the outer cylinder 1 is located.

[0120] According to the above content, the second vent 31 is located at a lower height, so that during the operation of the clothing processing equipment, washing water or condensed water can flush the second vent 31 as the inner drum 2 rotates, thereby flushing the second filter, making it difficult for hair to adhere to the second filter.

[0121] In another embodiment of the present application, a collecting box 8 is provided at the lower end of the outer cylinder 1 , and the collecting box 8 is connected to both the second condensation air duct 3 and the first condensation air duct 4 for storing condensed water.

[0122] In one embodiment, the shape, volume and specific structure of the collection box 8 are not limited in this embodiment.

[0123] Through the above content, the collecting box 8 collects the condensed water, which is convenient for reusing the condensed water and saving water resources.

[0124] In another embodiment of the present application, the laundry processing device further comprises a water pump 9 , a water inlet end of the water pump 9 is connected to the collection box 8 , and a first water outlet end of the water pump 9 is connected to a first water pipe 11 ;

[0125] One end of the first water pipe 11 away from the water pump 9 extends to the first filter screen.

[0126] In one embodiment, the water pump 9 can pump the condensed water from the collection box 8 and supply it to the first water pipe 11. The end of the first water pipe 11 away from the water pump 9 extends to the first filter screen, so that the condensed water in the first water pipe 11 can flush the first filter screen, thereby cleaning the first filter screen and preventing or resolving the problem of clogging of the first filter screen.

[0127] Specifically, in one application scenario, one end of the first water pipe 11 away from the water pump 9 extends to the first filter and is connected to a spray device, and the spray device is used to clean the first filter.

[0128] Through the above content, by setting up structures such as the collection box 8, the water pump 9 and the first water pipe 11, the first filter can be automatically cleaned after the water level detection box 6 detects that the first filter is clogged, thereby solving the problem of clogged first filter and ensuring the drying efficiency of the clothing processing equipment.

[0129] In another embodiment of the present application, the first water outlet end of the water pump 9 is connected to a multi-way connector 10, the water inlet end of the multi-way connector 10 is connected to the first water outlet end of the water pump 9, the water outlet end of the multi-way connector 10 is connected to the first water pipe 11, and the water outlet end of the multi-way connector 10 is further connected to the second water pipe 12;

[0130] One end of the second water pipe 12 away from the multi-way connector 10 extends to the second filter screen.

[0131] In one embodiment, the diameter of the second water pipe 12 is larger than that of the first water pipe 11. In another embodiment, the diameter of the outlet end of the multi-way connector 10 connected to the first water pipe 11 is smaller than that of the outlet end of the multi-way connector 10 connected to the second water pipe 12.

[0132] In one embodiment, the multi-way connector 10 is a three-way valve having one water inlet end and two water outlet ends.

[0133] The end of the first water pipe 11 away from the water outlet end of the multi-way connector 10 can also be connected to a spray device to rinse the second filter screen.

[0134] Through the above content, by setting the second water pipe 12, the utilization rate of the condensed books in the collection box 8 is improved, and resources are saved. At the same time, the condensed water in the second water pipe 12 can flush the second filter screen, solve the problem of clogging the second filter screen, and ensure drying efficiency.

[0135] In another embodiment of the present application, the second water outlet of the water pump 9 is connected to a third water pipe 13, the third water pipe 13 is connected to a water diversion valve 14, and the water outlets of the water diversion valve 14 are respectively connected to a fourth water pipe 15 and a fifth water pipe 16;

[0136] The fourth water pipe 15 extends from one end of the water diversion valve 14 to the door seal 17 and the glass bowl 18 of the clothes processing device;

[0137] One end of the fifth water pipe 16 away from the water diversion valve 14 extends to the inner bottom wall of the outer tube 1 .

[0138] In one embodiment, the fourth water pipe 15 and the fifth water pipe 16 can both be connected to a spray device to rinse the door seal 17 and the glass bowl 18, so as to rationally utilize the condensed water in the collection box 8, improve utilization rate, and save resources.

[0139] In another embodiment of the present application, the diameter of the second ventilation opening 31 is greater than the diameter of the first ventilation opening 41 .

[0140] It should be noted that the diameter of the second vent 31 is larger, so that the amount of drying airflow entering the second condensation duct 3 is greater, thereby making the condensation efficiency of the second condensation duct 3 higher than that of the first condensation duct 4.

[0141] In another embodiment of the present application, a plurality of guide strips 19 are provided on the inner bottom wall of the outer cylinder 1 .

[0142] In one embodiment, there are multiple guide bars 19, and the extension directions of the guide bars 19 are inconsistent. This allows the condensed water in the first condensation duct 4 to flow along the inner bottom wall of the outer tube 1, guided by the guide bars 19, and spread all over the inner bottom wall of the outer tube 1. This increases the contact area between the condensed water and the drying airflow in the first condensation duct 4, thereby improving the condensation efficiency and, in turn, the drying efficiency.

[0143] An embodiment of the present application also provides a method for cleaning air vent blockage, which uses the above-mentioned clothing processing equipment, including: responding to a filter cleaning instruction, controlling the water pump to start, so as to transport the condensed water in the collection box through a first water pipe to the first filter to clean the first filter.

[0144] In another embodiment of the present application, the method further comprises:

[0145] When the drying process is completed, the water pump is controlled to deliver water to the first water pipe according to the water level of the condensed water detected by the liquid level sensor in the collection box to clean the first filter screen and the inner bottom wall of the outer cylinder.

[0146] In another embodiment of the present application, the method further comprises:

[0147] After the drying process is completed, it is determined whether the water level of the condensed water in the collection box reaches the preset cleaning threshold;

[0148] If the cleaning threshold is reached, the water pump is controlled to send water to the third water pipe to clean the glass bowl and the outer cylinder;

[0149] If the cleaning threshold is not reached, the water pump is controlled to deliver water to the third water pipe, and the glass bowl spray pipe is controlled to spray water to clean the glass bowl.

[0150] 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.

[0151] 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.

[0152] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0153] 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 units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0154] 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.

[0155] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0156] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for detecting blockage of an air outlet of a clothes processing device, characterized in that: Applicable to a clothes processing device, the clothes processing device includes an inner drum and an outer drum, a first condensing air duct is formed between the inner drum and the outer drum, a second condensing air duct is provided on a side of the outer drum away from the inner drum, a first vent and a second vent are opened on the bottom wall of the outer drum, at least part of the drying air in the outer drum passes through the first condensing air duct and enters the upper part of the second condensing air duct from the first vent, and at least part of the drying air in the outer drum passes through the second vent and enters the lower part of the second condensing air duct, the flow area of ​​the second vent is larger than the flow area of ​​the first vent, the first vent is provided with a first filter, and the detection method is used to detect the blockage of the first vent, and the detection method includes: Obtaining a first water temperature after the drying airflow is condensed by the condensed water in the second condensing air duct; Determine whether the first filter screen is clogged based on the first water temperature.

2. The method for detecting air vent blockage in a clothes processing device according to claim 1, wherein: The determining whether the first filter screen is clogged according to the first water temperature includes: When the first water temperature exceeds a preset target threshold, determining that the first filter is clogged; When the first water temperature does not exceed the target threshold, it is determined that the first filter is not clogged.

3. The method for detecting air vent blockage in a clothes processing device according to claim 2, wherein: The method further comprises: When the first water temperature exceeds a preset target threshold, a filter cleaning instruction is generated, wherein the filter cleaning instruction is used to control the cleaning device to clean the air outlet when the clothes processing device is in the target state next time.

4. The method for detecting air vent blockage in a clothes processing device according to claim 1, wherein: The obtaining of the first water temperature after the drying airflow is condensed by the condensed water in the second condensation air duct includes: The temperature collected by the temperature sensing package in the clothes processing device is obtained, wherein the temperature sensing package is located on the condensed water flow path and is arranged close to the second vent.

5. The method for detecting air vent blockage in a clothes processing device according to claim 1, wherein: The first water temperature is an average value of the condensed water temperature within a preset period after being within a preset fluctuation threshold range.

6. The method for detecting air vent blockage in a clothes processing device according to claim 1, wherein: Before obtaining the first water temperature after the drying airflow is condensed by the condensed water in the second condensation air duct, the method further includes: In response to the detection signal, controlling the condensation valve to open for a preset time period; Obtaining a second water temperature of the condensed water; When the second water temperature is within a preset water temperature threshold range, waiting for a condensed water inlet signal; When the second water temperature exceeds the water temperature threshold range, a drying process is executed.

7. The method for detecting air vent blockage in a clothes processing device according to claim 1, wherein: The determining whether the first filter screen is clogged according to the first water temperature includes: The degree of dirtiness and blockage is retrieved from a preset water temperature table according to the first water temperature, and whether blockage occurs is determined based on the degree of dirtiness and blockage, wherein the water temperature table includes multiple threshold intervals, and each threshold interval corresponds to a different degree of dirtiness and blockage.

8. A clothes processing device, characterized in that:

7. The detection method according to claim 1, wherein the clothes processing device comprises an inner drum and an outer drum, a drying air duct is formed between the inner drum and the outer drum, the drying air duct comprises the inner drum and the outer drum, a first condensing air duct is formed between the inner drum and the outer drum, a second condensing air duct is provided on a side of the outer drum away from the inner drum, a second vent and a first vent are provided on the bottom wall of the outer drum, at least part of the drying air in the outer drum passes through the first condensing air duct and enters the upper part of the second condensing air duct from the first vent, and at least part of the drying air in the outer drum passes through the second vent and enters the lower part of the second condensing air duct, the flow area of ​​the second vent is larger than the flow area of ​​the first vent, the first vent is provided with a first filter, and the second vent is provided with a second filter; The second vent and the first vent are arranged at different heights along the bottom of the outer tube, wherein the second vent is arranged at the lower part of the bottom wall of the outer tube, and the first vent is arranged at the upper part of the bottom wall of the outer tube; The hot and humid drying airflow in the inner cylinder enters the outer cylinder from the inner cylinder, part of it enters the second condensation duct through the second ventilation port, and part of it enters the first ventilation port after passing through the first condensation duct, and then mixes with the outlet air of the second condensation duct through the first ventilation port.

9. The clothes processing device according to claim 8, characterized in that: The clothes processing device further includes a collection box located at the lower end of the outer drum, the collection box being in communication with both the second condensation air duct and the first condensation air duct and being used to store condensed water; The collecting box is connected to a water pump, a first water outlet of the water pump is connected to a first water pipe, and an end of the first water pipe away from the water pump extends to the first filter screen; The first water outlet is further connected to a second water pipe, and an end of the second water pipe away from the water pump extends to the second filter screen; The second water outlet of the water pump is connected to the third water pipe, the third water pipe is connected to the water diversion valve, and the water outlet of the water diversion valve is connected to the fourth water pipe and the fifth water pipe respectively; An end of the fourth water pipe away from the water diversion valve extends to the door seal and the glass bowl of the laundry processing device; One end of the fifth water pipe away from the water diversion valve extends to the inner bottom wall of the outer cylinder.

10. A method for cleaning a blocked gas port, characterized in that: The clothes processing device according to claim 8 or 9 comprises: In response to the filter cleaning instruction, the water pump is controlled to start, so as to transport the condensed water in the collection box to the first filter through the first water pipe to clean the first filter.

11. The method for cleaning a blocked gas port according to claim 10, characterized in that: The method further comprises: When the drying process is completed, the water pump is controlled to deliver water to the first water pipe according to the water level of the condensed water detected by the liquid level sensor in the collection box to clean the first filter screen and the inner bottom wall of the outer cylinder.

12. The method for clearing a blocked gas port according to claim 10 or 11, characterized in that: The method further comprises: After the drying process is completed, it is determined whether the water level of the condensed water in the collection box reaches the preset cleaning threshold; If the cleaning threshold is reached, the water pump is controlled to send water to the third water pipe to clean the glass bowl and the outer cylinder; If the cleaning threshold is not reached, the water pump is controlled to deliver water to the third water pipe, and the glass bowl spray pipe is controlled to spray water to clean the glass bowl.

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