Isolation washing control method of washing apparatus

Abstract

The present application relates to the technical field of washing equipment, and particularly provides an isolation washing control method of washing equipment, aiming at solving the problem of inaccurate heating temperature when water vapor is supplied in the existing washing equipment. To this end, the control method comprises: obtaining the weight of the laundry in the inner drum; controlling the spraying device to spray water and / or washing liquid to the laundry in the inner drum and controlling the rotation of the inner drum; obtaining the initial temperature of the washing water at the bottom of the outer drum and the preset clothes surface temperature; calculating the preset heating time of the heating element according to the weight of the laundry in the inner drum, the initial temperature of the washing water at the bottom of the outer drum and the preset clothes surface temperature; controlling the heating element to heat the washing water at the bottom of the outer drum for a preset heating time to generate water vapor; and controlling the water in the gap cavity to always not contact the inner drum throughout the program. The control method can meet the needs of different washing temperatures of users and ensure the washing effect and the quality of clothes.

Description

[0001] This application claims priority to Chinese patent application CN202211543213.X, filed on December 2, 2022, entitled “Isolation Washing Control Method for Drum Washing Machine”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of washing equipment technology, and specifically provides a method for isolating and controlling washing in washing equipment. Background Technology

[0003] Washing machines are common household appliances for washing clothes. Based on their washing methods, washing machines can be broadly classified into top-loading (pulsator) washing machines and front-loading (drum) washing machines. Taking front-loading washing machines as an example, the washing process typically involves filling the space between the inner and outer drums with water, ensuring the water level is higher than the inner drum. The clothes are then soaked in the water, and the inner drum rotates and "tumbles" the clothes to wash them. If the washing machine is used for an extended period, bacteria will inevitably grow between the inner and outer drums. This can lead to secondary contamination of clothes when the user washes them again, which is detrimental to health.

[0004] Furthermore, currently, when washing machines supply steam, the heating time is set only based on the weight of the clothes to be washed, and the washing temperature is obtained directly by monitoring the water temperature. Since steam is a non-direct heat source transferred to the clothes, controlling the heating temperature directly by monitoring the water temperature is inaccurate. Moreover, different initial water inlet temperatures will also have a certain impact on the heating time. This will lead to a difference between the actual washing temperature and the washing temperature expected by the user, affecting the washing effect and the quality of the clothes.

[0005] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problems of bacteria between the inner and outer drums of existing washing equipment adhering to the clothes and causing secondary pollution of the clothes, as well as the problem of inaccurate heating temperature.

[0007] This invention provides a method for isolating and controlling a washing device. The washing device includes an inner drum, an outer drum, a spray device, and a heating element. The inner drum is rotatably disposed inside the outer drum, and the heating element is disposed at the inner bottom of the outer drum. The inner drum is used to hold clothes to be washed, and a gap cavity is formed between the inner drum and the outer drum. The spray device is configured to spray water into the inner drum. The control method includes the following steps: obtaining the weight of the clothes to be washed in the inner drum; controlling the spray device to spray water and / or detergent into the clothes to be washed in the inner drum and controlling the rotation of the inner drum; obtaining the initial temperature of the washing water at the bottom of the outer drum and a preset surface temperature of the clothes; calculating a preset heating time for the heating element based on the weight of the clothes to be washed in the inner drum, the initial temperature of the washing water at the bottom of the outer drum, and the preset surface temperature of the clothes; controlling the heating element to heat the washing water at the bottom of the outer drum for the preset heating time to generate water vapor; and controlling the water in the gap cavity to never contact the inner drum throughout the entire process.

[0008] In a specific embodiment of the isolation washing control method for the above-mentioned washing equipment, the calculation formula for the preset heating time of the heating element is: T h =(T S -T0) / akL d +C; where T h T is the preset heating time for the heating element. S To preset the surface temperature of the clothes, T0 is the initial temperature of the washing water at the bottom of the outer drum, and L... d Let be the weight of the clothes to be washed, a be a constant, k be the drum volume coefficient, and C be the time it takes for the washing water at the bottom of the outer drum to generate water vapor.

[0009] In a specific implementation of the isolation washing control method for the above-mentioned washing equipment, the step of "controlling the heating element to heat the washing water at the bottom of the outer drum to generate water vapor for a preset heating time" specifically includes: obtaining the number of times the water level changes within the gap cavity within a preset time; when the number of water changes is less than the preset number of changes, controlling the heating element to heat the washing water at the bottom of the outer drum to generate water vapor; "the preset heating time of the heating element" refers to the total heating time of the heating element in the entire process.

[0010] In a specific embodiment of the isolation washing control method of the above-mentioned washing equipment, a groove is provided at the inner bottom of the outer drum, and the heating element is an electric heating tube disposed in the groove.

[0011] In a specific implementation of the isolation washing control method for the above-mentioned washing equipment, the step of "controlling the water in the gap cavity to never contact the inner drum throughout the entire process" further includes: acquiring the actual water level in the gap cavity in real time throughout the entire process; when the actual water level is higher than the preset water level, controlling the gap cavity to drain water so that the water in the gap cavity never contacts the inner drum.

[0012] In a specific embodiment of the isolation washing control method of the above-mentioned washing equipment, the steps of "controlling the spray device to spray water and / or washing liquid onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: S11, controlling the spray device to spray water onto the clothes to be washed in the inner drum; S12, controlling the inner drum to rotate back and forth; S13, controlling the spray device to spray washing liquid onto the clothes to be washed in the inner drum; first, steps S11 and S12 are executed repeatedly, and then steps S12 and S13 are executed repeatedly.

[0013] In a specific embodiment of the isolation washing control method for the above-mentioned washing equipment, the steps of "controlling the spray device to spray water and / or washing liquid onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: S110, controlling the spray device to spray washing liquid onto the clothes to be washed in the inner drum; S120, controlling the inner drum to rotate back and forth; S130, controlling the spray device to spray water onto the clothes to be washed in the inner drum; first, steps S110 and S120 are executed repeatedly, and then steps S120 and S130 are executed repeatedly.

[0014] In a specific embodiment of the isolation washing control method of the above-mentioned washing equipment, the steps of "controlling the spray device to spray water and / or washing liquid onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include performing the following steps alternately: S1100, controlling the spray device to spray a mixture of washing liquid and water onto the clothes to be washed in the inner drum; S1200, controlling the inner drum to reciprocate.

[0015] In a specific implementation of the isolation washing control method for the above-mentioned washing equipment, the steps of "controlling the spray device to spray water and / or washing liquid onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: first controlling the spray device to spray water onto the clothes to be washed in the inner drum; then controlling the spray device to spray washing liquid onto the clothes to be washed in the inner drum; and after the clothes to be washed in the inner drum are fully wetted, controlling the inner drum to rotate back and forth.

[0016] In a specific implementation of the isolation washing control method for the above-mentioned washing equipment, the steps of "controlling the spray device to spray water and / or washing liquid onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: first controlling the spray device to spray washing liquid onto the clothes to be washed in the inner drum; then controlling the spray device to spray water onto the clothes to be washed in the inner drum; and after the clothes to be washed in the inner drum are fully wetted, controlling the inner drum to rotate back and forth.

[0017] When the above technical solution is adopted, the washing equipment of the present invention sets the heating time according to the weight of the clothes to be washed, the initial temperature of the washing water and the preset surface temperature of the clothes (i.e. the washing temperature desired by the user). Compared with the existing method of setting the heating time only according to the weight of the clothes to be washed, the washing temperature is more accurate, which can meet the user's different washing temperature needs and ensure the washing effect and clothing quality. Attached Figure Description

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a schematic diagram of the washing equipment of the present invention;

[0020] Figure 2 This is a front longitudinal section diagram of the washing device of the present invention;

[0021] Figure 3 This is a flowchart of the main steps of the isolation washing control method of the washing equipment of the present invention;

[0022] Figure 4 This is a possible complete flowchart of the isolation washing control method of the washing equipment of the present invention;

[0023] List of reference numerals in the attached diagram:

[0024] 1. Inner cylinder; 2. Outer cylinder; 21. Groove; 3. Window gasket; 4. Gap cavity; 5. Heating element. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0026] It should be noted that although the steps of the control method of the present invention are described in a specific order in the description of the present invention, these orders are not restrictive. Without departing from the basic principles of the present invention, those skilled in the art can perform the steps in different orders.

[0027] This invention provides a method for isolating washing control in a washing device. In this invention, the washing device can be a drum washing machine or a top-loading washing machine. The control method of this invention is described below using a drum washing machine as an example.

[0028] First refer to Figure 1 and Figure 2 This figure is a schematic diagram of the washing device of the present invention. Figure 1 , Figure 2 As shown, the washing device of the present invention includes an inner drum 1, an outer drum 2, a spray device (not shown in the figure), and a heating element 5. The inner drum 1 is rotatably disposed inside the outer drum 2. A groove 21 is provided at the inner bottom of the outer drum 2. The heating element 5 is an electric heating tube disposed in the groove 21. The inner drum 1 is used to hold the clothes to be washed. A gap cavity 4 is formed between the inner drum 1 and the outer drum 2. A window gasket 3 is provided between the open end of the front structure of the outer drum 2 and the housing of the washing device. The spray device is preferably installed on the window gasket 3 and configured to spray into the inner drum 1. Of course, the spray device can also be installed in other positions besides the window gasket 3, as long as it can spray into the inner drum 1. The present invention does not impose any limitation on the installation position of the spray device.

[0029] Then refer to Figure 3 The figure is a flowchart illustrating the main steps of the isolation washing control method of the washing equipment of the present invention. Figure 3 As shown, the control method of the present invention includes:

[0030] S1, obtain the weight of the clothes to be washed in the inner drum 1;

[0031] S2, control the spray device to spray water and / or detergent onto the clothes to be washed in the inner drum 1 and control the rotation of the inner drum 1;

[0032] S3, obtain the initial temperature of the washing water at the bottom of the outer drum 2 and the preset surface temperature of the clothes;

[0033] S4. Calculate the preset heating time of the heating element 5 based on the weight of the clothes to be washed in the inner drum 1, the initial temperature of the washing water at the bottom of the outer drum 2, and the preset surface temperature of the clothes.

[0034] S5, control the heating element 5 to heat the washing water at the bottom of the outer drum 2 for a preset heating time to generate water vapor;

[0035] S6 ensures that the water in the gap cavity 4 never comes into contact with the inner cylinder 1 throughout the entire process.

[0036] In step S1, the weight of the clothes to be washed can be obtained by fuzzy weighing or by controlling the rotation of the inner drum 1 to obtain the corresponding output current value, and the weight of the clothes to be washed can be obtained according to the mapping relationship between the output current value and the weight of the clothes. In step S3, the initial temperature of the washing water can be obtained by setting a temperature sensor at the bottom of the outer drum. "Throughout the entire program" in step S6 means that during the entire washing program operation, it includes not only the washing stage, but also the rinsing stage and the spin-drying stage. Accordingly, for step S2, "controlling the spray device to spray water and / or detergent into the clothes to be washed in the inner drum 1" includes not only spraying water and detergent into the clothes to be washed in the inner drum 1 during the washing stage, but also spraying only clean water into the clothes to be washed during the rinsing stage.

[0037] In the above steps, since water vapor is generated by heating the washing water at the bottom of the outer drum 2 through the heating element 5, the temperature of the clothing surface is different from the temperature of the washing water at the bottom of the outer drum 2, resulting in a temperature difference. Furthermore, the initial temperature of the washing water and the weight of the clothes to be washed also affect the heating time. Therefore, the washing equipment of this invention sets the heating time based on the weight of the clothes to be washed, the initial temperature of the washing water, and the preset surface temperature of the clothes (i.e., the user's desired washing temperature). Compared to existing methods that only set the heating time based on the weight of the clothes to be washed, the washing temperature is more precise, meeting the user's different washing temperature needs and ensuring washing effect and clothing quality.

[0038] In step S4, the formula for calculating the preset heating time of heating element 5 is as follows:

[0039] T h =(T S -T0) / akL d +C;

[0040] Among them, T h The preset heating time for heating element 5, in seconds (S) or seconds (T). S T0 is the preset surface temperature of the clothes, in °C; T0 is the initial temperature of the washing water at the bottom of the outer drum 2, in °C; L d denoted as , where is the weight of the clothes to be washed, in kg; 'a' is a constant; 'k' is the drum volume coefficient; and 'C' is the time it takes for the washing water at the bottom of the outer drum to generate steam, in seconds.

[0041] For example, C is generally set to 300S by default, a = 8 × 60 = 480, and k = 2.

[0042] In step S5, the step of "controlling the heating element 5 to heat the washing water at the bottom of the outer drum 2 for a preset heating time to generate water vapor" specifically includes:

[0043] The number of times the water level changes within the gap cavity 4 within a preset time period is obtained;

[0044] When the number of water occurrences is less than the preset number of occurrences, the heating element 5 is controlled to heat the washing water at the bottom of the outer cylinder 2 to generate water vapor.

[0045] In step S5, when the washing equipment is either filling or draining water, the water level in the gap cavity changes frequently. During this time, the heating element 5 does not operate, meaning it does not supply steam to the outer drum 2. This is because the washing water level in the gap cavity 4 is unstable during filling and draining. If heating were to occur at this time, the heated washing water would be drained during drainage, or the water temperature would be insufficient during filling to generate steam, resulting in energy waste and preventing maximum energy utilization. When steam is supplied to the outer drum 2, water droplets from the wet clothes still fall into the gap cavity 4 during washing and tumbling, causing the water level in the gap cavity 4 to rise. To prevent the water in the gap cavity 4 from contacting the inner drum, drainage is necessary to maintain the water level, thus making the water level in the gap cavity 4 unstable. Therefore, in order to improve the efficiency of power utilization and avoid energy loss, water vapor is only supplied when the water level in the gap cavity 4 remains stable. That is, by judging whether the number of water level changes within a preset time is less than the preset number of occurrences, if so, the heating element 5 is controlled to work; otherwise, the heating element 5 is controlled not to work.

[0046] "The preset heating time of heating element 5" refers to the total heating time of the heating element throughout the entire program. Specifically, since heating element 5 is not working when the water level changes frequently, the heating time of heating element 5 is accumulated each time it heats during the entire program, and heating stops when the accumulated heating time reaches the preset heating time; or, if the heating time has not reached the preset heating time at the end of the entire program, heating element 5 stops heating as the program ends.

[0047] During the washing stage, step S2 specifically includes the following steps:

[0048] S11, control the spray device to spray water onto the clothes to be washed in the inner drum 1;

[0049] S12 controls the inner cylinder 1 to reciprocate;

[0050] S13, control the spray device to spray washing liquid onto the clothes to be washed in the inner drum 1.

[0051] First, repeat steps S11 and S12 multiple times to wet the clothes to be washed. Then, repeat steps S12 and S13 multiple times to allow the washing liquid to adhere to the clothes to be washed.

[0052] Specifically, during one execution of steps S11 and S12, the spray device is first controlled to spray water onto the clothes to be washed in the inner drum 1, and then the inner drum 1 is controlled to rotate back and forth, and this cycle is repeated multiple times until the preset spray water volume and spray number are met. Similarly, during one execution of steps S12 and S13, the spray device is first controlled to spray detergent onto the clothes to be washed in the inner drum 1, and then the inner drum 1 is controlled to rotate back and forth, and this cycle is repeated multiple times until the preset spray detergent volume and spray number are met.

[0053] Of course, during the execution of steps S11 and S12, the spraying water and the inner drum rotation can be controlled simultaneously, or the inner drum rotation can be controlled first, followed by the spraying water. Similarly, during the execution of steps S12 and S13, the spraying washing liquid and the inner drum rotation can be controlled simultaneously, or the inner drum rotation can be controlled first, followed by the spraying washing liquid. These adjustments do not deviate from the principles of the present invention and therefore fall within the protection scope of the present invention.

[0054] Furthermore, the aforementioned washing liquid can be a undiluted washing liquid or a mixture of undiluted washing liquid and water; this invention does not limit this. For example, water can be sprayed onto the clothes to be washed first, ensuring they are fully wetted, and then a high-concentration washing liquid can be sprayed onto them, allowing the washing liquid to adhere to the clothes. Alternatively, water can be sprayed onto the clothes to be washed first, ensuring they are damp, and then a low-concentration washing liquid can be sprayed onto them, ensuring they are fully wetted and coated with washing liquid. This method, by first dampening but not completely soaking the clothes, and then allowing them to be fully soaked under the action of the washing liquid, allows the washing liquid to adhere to the clothes better and more evenly, ensuring the subsequent washing effect, while also saving on the amount of washing liquid and spray water used.

[0055] Alternatively, in an alternative embodiment, during the washing phase, step S3 specifically includes:

[0056] S110, control the spray device to spray washing liquid onto the clothes to be washed in the inner drum 1;

[0057] S120 controls the reciprocating rotation of the inner cylinder 1;

[0058] S130, controls the spray device to spray water onto the clothes to be washed in the inner drum 1.

[0059] First, repeat steps S110 and S120 multiple times to allow the washing liquid to adhere to the clothes to be washed. Then, repeat steps S120 and S130 multiple times to wet the clothes to be washed.

[0060] Specifically, during one execution of steps S110 and S120, the spray device is first controlled to spray detergent onto the clothes to be washed in the inner drum 1, and then the inner drum 1 is controlled to rotate back and forth, and this cycle is repeated multiple times until the preset amount of detergent and number of sprays are met. Similarly, during one execution of steps S120 and S130, the spray device is first controlled to spray water onto the clothes to be washed in the inner drum 1, and then the inner drum 1 is controlled to rotate back and forth, and this cycle is repeated multiple times until the preset amount of water and number of sprays are met.

[0061] Of course, during the execution of steps S110 and S120, the spraying of the washing liquid and the rotation of the inner drum can be controlled simultaneously, or the rotation of the inner drum can be controlled first, followed by the spraying of the washing liquid. Similarly, during the execution of steps S120 and S130, the spraying of the water and the rotation of the inner drum can be controlled simultaneously, or the rotation of the inner drum can be controlled first, followed by the spraying of the water. These adjustments do not deviate from the principles of the present invention and therefore fall within the scope of protection of the present invention.

[0062] Alternatively, in an alternative embodiment, during the washing phase, step S3 specifically includes:

[0063] S1100 controls the spraying device to spray a mixture of detergent and water onto the clothes to be washed inside the inner drum 1.

[0064] S1200 controls the reciprocating rotation of the inner cylinder 1.

[0065] Steps S1100 and S1200 are executed alternately and repeatedly until the preset spray volume and spray count are met.

[0066] In the above steps, by alternating between controlled spraying and rotation of the inner drum 1, on the one hand, the clothes to be washed can be dispersed when the inner drum 1 rotates, avoiding the clothes from being stacked, and the sprayed mixed solution can be sprayed more evenly on the clothes to be washed. On the other hand, the jogging water inlet method can ensure the accuracy of the water level entering the gap cavity, so as to ensure precise control of drainage and avoid the inner drum 1 from contacting the water in the gap cavity due to untimely drainage.

[0067] Alternatively, in an alternative embodiment, during the washing phase, step S3 specifically includes:

[0068] First, control the spray device to spray water onto the clothes to be washed inside the inner drum 1;

[0069] Then control the spray device to spray washing liquid onto the clothes to be washed in the inner drum 1;

[0070] After the clothes to be washed in the inner drum 1 are fully wetted, control the inner drum 1 to rotate back and forth.

[0071] Alternatively, in an alternative embodiment, during the washing phase, step S3 specifically includes:

[0072] First, control the spray device to spray washing liquid onto the clothes to be washed in the inner drum 1;

[0073] Then control the spray device to spray water onto the clothes to be washed in the inner drum 1;

[0074] After the clothes to be washed in the inner drum 1 are fully wetted, control the inner drum 1 to rotate back and forth.

[0075] Step S6 specifically includes the following steps:

[0076] Throughout the program, the actual water level height inside gap cavity 4 is acquired in real time;

[0077] When the actual water level is higher than the preset water level, the gap cavity 4 is drained to ensure that the water in the gap cavity 4 never comes into contact with the inner cylinder 1.

[0078] In an embodiment of the present invention, a water level sensor (not shown in the figure) is provided in the gap cavity 4 to detect the actual water level height in the gap cavity 4. The preset water level height is the water level height that is never in contact with the edge of the inner cylinder 1.

[0079] In this invention, by using steam to fumigate the clothes, the activity of enzymes in the detergent solution added to the inner drum 1 is activated during the washing stage. This allows the enzymes to better blend with the clothes, promoting stain removal and cleaning. Simultaneously, it reduces the amount of detergent used and the number of rinses, making the clothes easier to rinse clean and improving washing effectiveness. Furthermore, because the clothes are in a vaporous environment, compared to the existing method of soaking clothes in water, the clothes are heated more evenly, resulting in higher energy transfer efficiency. At the same time, it also sterilizes and disinfects the environment of the inner drum 1 and the clothes during washing.

[0080] Throughout the washing process, the spray device sprays water and / or detergent directly onto the clothes in the inner drum 1. The water and / or detergent first enter the inner drum 1 to contact the clothes, then enters the gap cavity 4, and finally exits through the gap cavity 4. This ensures that the water and / or detergent sprayed onto the clothes are always clean and not reused. Simultaneously, the water in the gap cavity 4 never comes into contact with the inner drum 1. When the inner drum 1 rotates, the water in the gap cavity 4 does not re-enter the inner drum 1, preventing bacteria from the gap cavity 4 from being carried into the inner drum 1 and adhering to the clothes, thus avoiding secondary contamination. Furthermore, because the water in the gap cavity 4 never comes into contact with the inner drum 1, the inner drum 1 does not need to overcome the resistance caused by water contact during rotation, thus reducing power consumption compared to existing washing equipment. In addition, by using a spray method to wash the clothes, water and / or detergent are sprayed more evenly onto the clothes, ensuring washing effectiveness while also saving water.

[0081] See below. Figure 4 The figure is a possible complete flowchart of the isolation washing control method of the washing equipment of the present invention. Figure 4 As shown, a possible complete process of the isolation washing control method of the washing equipment of the present invention is as follows:

[0082] S101, Obtain the weight of the laundry inside the inner drum 1;

[0083] S102, control the spray device to spray water and / or detergent onto the clothes to be washed in the inner drum 1 and control the rotation of the inner drum 1;

[0084] S103, obtain the initial temperature of the washing water at the bottom of the outer drum 2 and the preset surface temperature of the clothes;

[0085] S104. Based on the weight of the clothes to be washed in the inner drum 1, the initial temperature of the washing water at the bottom of the outer drum 2, and the preset surface temperature of the clothes, the preset heating time of the heating element 5 is obtained.

[0086] S105, obtain the number of times the water level changes within the interstitial cavity 4 within a preset time;

[0087] S106, Determine whether the number of occurrences is less than the preset number of occurrences;

[0088] If so, proceed to step S107;

[0089] If not, proceed to step S108;

[0090] S107, controls the heating element 5 to heat the washing water at the bottom of the outer cylinder 2 to generate water vapor;

[0091] S108, control heating element 5 to not work.

[0092] S109 ensures that the water in the gap cavity 4 never comes into contact with the inner cylinder 1 throughout the entire process.

[0093] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method for isolating and controlling washing in a washing machine, characterized in that, The washing equipment includes an inner drum, an outer drum, a spray device, and a heating element. The inner drum is rotatably disposed inside the outer drum. The heating element is disposed at the inner bottom of the outer drum. The inner drum is used to hold clothes to be washed. A gap cavity is formed between the inner drum and the outer drum. The spray device is configured to spray water into the inner drum. The control method includes the following steps: Obtain the weight of the laundry inside the inner drum; Control the spraying device to spray water and / or detergent onto the clothes to be washed in the inner drum and control the rotation of the inner drum; The initial temperature of the washing water at the bottom of the outer drum and the preset surface temperature of the clothes are obtained. The preset heating time of the heating element is calculated based on the weight of the clothes to be washed in the inner drum, the initial temperature of the washing water at the bottom of the outer drum, and the preset surface temperature of the clothes. The heating element is controlled to heat the washing water at the bottom of the outer drum for a preset heating time to generate water vapor; Throughout the entire process, the water in the gap cavity is controlled to never come into contact with the inner cylinder; The step of "ensuring that the water in the gap cavity never comes into contact with the inner cylinder throughout the entire process" further includes: The actual water level height inside the gap cavity is acquired in real time throughout the entire washing, rinsing, and spin-drying process. When the actual water level is higher than the preset water level, the gap cavity is controlled to drain water so that the water in the gap cavity never comes into contact with the inner cylinder.

2. The isolation washing control method for the washing equipment according to claim 1, characterized in that, The formula for calculating the preset heating time of the heating element is as follows: T h =(T S -T0) / akL d +C; Among them, T h T is the preset heating time for the heating element. S To preset the surface temperature of the clothes, T0 is the initial temperature of the washing water at the bottom of the outer drum, and L... d Let be the weight of the clothes to be washed, a be a constant, k be the drum volume coefficient, and C be the time it takes for the washing water at the bottom of the outer drum to generate water vapor.

3. The isolation washing control method for the washing equipment according to claim 1, characterized in that, The step of "controlling the heating element to heat the washing water at the bottom of the outer drum for a preset heating time to generate water vapor" specifically includes: The number of times the water level changes within the gap cavity within a preset time period is obtained; When the number of occurrences is less than the preset number of occurrences, the heating element is controlled to heat the washing water at the bottom of the outer cylinder to generate water vapor; "The preset heating time of the heating element" refers to the total heating time of the heating element throughout the entire process.

4. The isolation washing control method for washing equipment according to claim 1, characterized in that, The inner bottom of the outer cylinder is provided with a groove, and the heating element is an electric heating tube disposed in the groove.

5. The isolation washing control method for a washing device according to any one of claims 1 to 3, characterized in that, The steps of "controlling the spray device to spray water and / or detergent onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: S11, control the spraying device to spray water onto the clothes to be washed in the inner drum; S12, control the inner cylinder to reciprocate; S13, control the spraying device to spray washing liquid onto the clothes to be washed in the inner drum; First, execute steps S11 and S12 repeatedly, then execute steps S12 and S13 repeatedly.

6. The isolation washing control method for a washing device according to any one of claims 1 to 3, characterized in that, The steps of "controlling the spray device to spray water and / or detergent onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: S110, control the spraying device to spray washing liquid onto the clothes to be washed in the inner drum; S120, control the inner cylinder to reciprocate; S130, control the spraying device to spray water onto the clothes to be washed in the inner drum; First, execute steps S110 and S120 repeatedly, then execute steps S120 and S130 repeatedly.

7. The isolation washing control method for a washing device according to any one of claims 1 to 3, characterized in that, The steps of "controlling the spray device to spray water and / or detergent onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include performing the following steps alternately: S1100, control the spraying device to spray a mixture of detergent and water onto the clothes to be washed in the inner drum; S1200 controls the reciprocating rotation of the inner cylinder.

8. The isolation washing control method for a washing device according to any one of claims 1 to 3, characterized in that, The steps of "controlling the spray device to spray water and / or detergent onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: First, control the spray device to spray water onto the clothes to be washed inside the inner drum; Then control the spraying device to spray washing liquid onto the clothes to be washed in the inner drum; After the clothes to be washed inside the inner drum are fully wetted, the inner drum is controlled to rotate back and forth.

9. The isolation washing control method for a washing device according to any one of claims 1 to 3, characterized in that, The steps of "controlling the spray device to spray water and / or detergent onto the clothes to be washed in the inner drum and controlling the rotation of the inner drum" specifically include: First, control the spraying device to spray washing liquid onto the clothes to be washed in the inner drum; Then control the spraying device to spray water onto the clothes to be washed inside the inner drum; After the clothes to be washed inside the inner drum are fully wetted, the inner drum is controlled to rotate back and forth.

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