Spraying fragrance retention control method for washing machine, storage medium and washing machine

Abstract

The invention relates to the technical field of washing machines, in particular to a spraying fragrance-retaining control method for a washing machine, a storage medium and the washing machine, and aims to solve the problems that the concentration of a fragrance-retaining agent solution is not easy to control and the fragrance-retaining effect wanted by a user cannot be achieved when the fragrance-retaining agent is put in the rinsing stage of an existing washing machine. In order to achieve the purpose, the spraying fragrance retention control method comprises the following steps that S1, a spraying fragrance retention control instruction selected by a user is received; and step S2, performing fragrance retention operation on the clothes in a spraying mode at the dehydration stage. According to the invention, the clothes fragrance-retaining effect desired by a user can be achieved, the clothes fragrance-retaining effect is stable and uniform, and the user experience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of washing machines, and specifically provides a spray fragrance retention control method and a storage medium for a washing machine, and a washing machine. Background Art

[0002] With the improvement of people's living standards, more and more people need the fragrance retention function in the process of washing clothes. The existing fragrance retention function is generally achieved by adding fragrance agents during the washing process. After washing, the fragrance agent molecules adhere to the clothing fibers to achieve fragrance retention.

[0003] The existing fragrance agent is generally added during the rinsing stage. At this time, the clothes have been cleaned after the washing stage. During the rinsing process, the fragrance agent solvent is added, and the fragrance agent solvent dissolves in the water and is then adsorbed into the clothing fibers. However, it is not easy to control the concentration of the fragrance agent solution when adding the fragrance agent during the rinsing process, and it is easy to cause waste of the fragrance agent. Moreover, the direct addition method cannot well achieve the fragrance agent molecules adhering to the clothing fibers to achieve the desired fragrance effect of users.

[0004] Chinese patent CN114411390B discloses a fragrance bead delivery device for a washing machine, a washing machine and a control method, which discloses that the washing machine is provided with a fragrance mode, and when receiving a control instruction of the fragrance mode, the control method includes: controlling the washing machine to introduce a preset amount of water into the circulation path; when the washing machine runs to the last rinsing process of the rinsing program during the processing of clothes, controlling the liquid in the circulation path to flow into the washing tub before the washing machine drains the water; performing fragrance treatment on the clothes in the washing machine, and controlling the washing machine to drain the water after reaching the set fragrance treatment time; the fragrance treatment is soaking treatment and / or washing treatment of the clothes. The fragrance bead delivery device of the above technical solution makes the fragrance bead dilution liquid flow in the circulation channel through the action of the circulation mechanism so that the fragrance bead is fully dissolved; by controlling the fragrance bead dilution liquid to be delivered into the washing tub after the last rinsing, the problem of poor fragrance effect of the fragrance bead after rinsing is avoided. However, during the rinsing stage, there is water for rinsing clothes in the washing drum, and the fragrance bead dilution liquid is further diluted in the washing drum. That is, it is still difficult to control the concentration of the fragrance agent solution during the rinsing stage and it is not possible to achieve uniform adhesion of the fragrance agent molecules on the clothing fibers, thereby failing to achieve the desired fragrance effect for users.

[0005] Therefore, in view of the problems existing in the above-mentioned prior art, how to provide a spray fragrance control method and storage medium for a washing machine, and a washing machine is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] The present invention aims to solve the above technical problem, that is, to solve the problem that it is difficult to control the concentration of the fragrance agent solution when adding the fragrance agent in the rinsing stage of the existing washing machine and the fragrance effect desired by the user cannot be achieved.

[0007] In a first aspect, the present invention provides a spraying and fragrance retention control method for a washing machine, comprising the following steps: step S1, receiving a spraying and fragrance retention control instruction selected by a user; step S2, performing a fragrance retention operation on clothes by spraying in a dehydration stage.

[0008] When the above technical solution is adopted, the present invention uses spraying to retain fragrance on clothes in the dehydration stage. Compared with the technical solution of the prior art that performs fragrance treatment in the rinsing stage, less fragrance solution is required to achieve the same fragrance effect, and it is easier to achieve the fragrance effect desired by the user. The spraying is combined with the dehydration process, the fragrance effect is better, and the fragrance on clothes is more uniform.

[0009] Furthermore, the step S2 includes the following steps: step S21, after the last rinse and drainage, determine whether the water absorption saturation of the clothes is less than a preset threshold, if not, enter step S22, if yes, directly enter step S23; step S22, perform a preliminary dehydration step; step S23, perform a spray fragrance step; step S24, perform a final dehydration step.

[0010] In the case of adopting the above technical scheme, the present invention ensures the effect of subsequent spraying and retaining fragrance by preliminarily dehydrating the clothes in advance, thereby avoiding the high water content of the clothes affecting the fragrance retention effect; it should be noted that the preliminary dehydration step, the spraying and retaining fragrance step and the final dehydration step of the present invention can be continuous steps, that is, preliminarily dehydrating first, and then continuing to rotate for spraying and retaining fragrance after reaching a preset threshold, and continuing to rotate for final dehydration after reaching the spraying and retaining fragrance time; it can also be separate steps, that is, after the preliminary dehydration, the spraying and retaining fragrance step is performed, and then the final dehydration step is performed.

[0011] Furthermore, the "receiving the spray fragrance control instruction selected by the user" in step S1 includes the following steps:

[0012] Step S11, determining whether the user has selected the spray fragrance control instruction;

[0013] Step S12, if the judgment result is no, prompting the user whether to select a fragrance retention control instruction;

[0014] Step S13, if the judgment result is yes, then further judge whether the amount of fragrance in the fragrance delivery chamber is greater than the required amount of fragrance, if not, then prompt the user to continue to add fragrance.

[0015] Furthermore, the "determining whether the water absorption saturation of the clothes is less than a preset threshold value" in the step S21 includes the following steps: step S211, detecting the dry weight of the clothes and the weight after the last rinse and drainage, and calculating the water absorption saturation of the clothes accordingly; step S212, determining whether the calculated water absorption saturation of the clothes is less than the preset threshold value.

[0016] When the above technical solution is adopted, after the clothes are rinsed and drained, the corresponding preset threshold is obtained according to the parameters of the clothes and the spray fragrance control instructions selected by the user. For example, when the weight of the clothes is relatively large or the user requires a relatively high degree of fragrance retention, the preset threshold of the water absorption saturation is lower. When the water absorption saturation of the clothes after rinsing and draining is greater than the preset threshold, preliminary dehydration is required to ensure the final fragrance retention effect.

[0017] Furthermore, the "performing a preliminary dehydration step" in the step S22 includes the following steps: step S221, determining a dehydration speed and a dehydration time according to the material and / or weight of the clothes; step S222, controlling the drive motor to perform preliminary dehydration on the clothes according to the determined dehydration speed and dehydration time; step S223, re-determining whether the water absorption saturation of the clothes is less than the preset threshold.

[0018] When adopting the above technical solution, the present invention adopts corresponding dehydration speeds and dehydration times for different clothing materials and / or different clothing weights. For example, when the water absorption of clothing materials and the weight of clothing are relatively large, the dehydration speed is appropriately increased and the dehydration time is extended to ensure that the water absorption saturation of the clothing reaches a preset threshold.

[0019] Furthermore, the "performing the spraying and fragrance retention step" in step S23 includes the following steps: step S231, determining the amount of fragrance retention solution required for spraying and fragrance retention according to the material and / or weight of the clothing;

[0020] Step S232, spraying the fragrance agent solution onto the surface of the clothing through a spraying device;

[0021] Step S233, controlling the driving motor to rotate during the spraying process.

[0022] When adopting the above-mentioned technical scheme, the present invention determines the amount of fragrance solution according to the material and / or weight of the clothes, obtains the corresponding concentration of the fragrance solution according to the spray fragrance control instruction selected by the user, and sprays a certain concentration and a certain amount of fragrance solution onto the surface of the clothes through the spray device, so as to achieve the fragrance effect desired by the user and improve the user's usage experience.

[0023] Furthermore, while executing step S232, step S233 is executed.

[0024] Further, the step S232 and the step S233 are performed alternately.

[0025] When the above technical solution is adopted, the present invention cooperates with the rotation of the driving motor during the spraying process, and can adopt a technical solution of simultaneous or alternating, or first simultaneous and then alternating, or first alternating and then simultaneous, to ensure that the fragrance agent solution is evenly sprayed onto the clothes to leave fragrance.

[0026] Furthermore, the "determining the spin speed and spin time according to the material and / or weight of the clothes" in step S221 includes the following steps: determining the water absorption coefficient of the clothes according to the material of the clothes; determining the spin speed and spin time according to the water absorption coefficient and / or weight of the clothes.

[0027] When adopting the above technical solution, the present invention obtains the corresponding water absorption capacity for the material of the clothes according to the corresponding water absorption coefficient. When the water absorption of the clothes is relatively good and the weight of the clothes is relatively large, the dehydration speed is appropriately increased and the dehydration time is extended so that the water absorption saturation of the clothes after preliminary dehydration is lower than the preset threshold.

[0028] Furthermore, the "performing a final dehydration step" in step S24 further includes: after the spraying and fragrance-retaining operation is completed, controlling the drive motor to perform a final dehydration step on the clothes according to the dehydration curve, and discharging the fragrance-retaining agent solution after the final dehydration through the drainage pipeline.

[0029] In a second aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor as described above in the spray fragrance control method.

[0030] In a third aspect, the present invention also provides a washing machine, comprising a washing machine body and an electronic device, the electronic device comprising a processor, a memory and a program, wherein the program is stored in the memory and is configured to be executed by the processor, the program includes a method for executing the above-mentioned spray fragrance control method; the washing machine body comprises an outer drum and an inner drum for accommodating clothes.

[0031] When the above technical solution is adopted, the beneficial effects of the present invention are:

[0032] (1) The present invention uses a spraying fragrance retention method to retain the fragrance of clothes during the washing and dehydration stage. Before the spraying fragrance retention, the water absorption saturation of the clothes is limited. When spraying the fragrance retention, a fragrance retention solution of corresponding concentration is soaked in the clothes by spraying, so that the clothes with limited water absorption saturation are sprayed with a fragrance retention solution of a certain concentration. The solubility of the fragrance retention solution can be controlled to achieve the fragrance retention effect desired by the user, and the spraying method can achieve uniform fragrance retention on the clothes. After the spraying is completed, the final dehydration is performed to complete the spraying and fragrance retention of the clothes.

[0033] (2) The spraying and fragrance-retaining step of the present invention specifically comprises spraying the fragrance-retaining agent solution onto the surface of the clothing through a spraying water channel, and controlling the rotation of the driving motor during the spraying process so that the fragrance-retaining agent solution is evenly sprayed onto the surface of the clothing and penetrates into the inside of the clothing, thereby achieving the technical effect of even fragrance retention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0035] Figure 1 It is a flow chart of the main steps of the spray fragrance retention control method for a washing machine of the present invention;

[0036] Figure 2 The present invention is a flowchart of the specific steps of the spray fragrance control method for a washing machine. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. For example, although the steps of the method of the present invention are described in a specific order in this application, 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.

[0038] like Figure 1 and Figure 2 As shown, an embodiment of the present invention discloses a spraying fragrance control method for a washing machine, and the spraying fragrance control method for a washing machine of the present invention comprises:

[0039] Step S1, receiving a spray fragrance control instruction selected by a user; Step S2, performing a fragrance retention operation on the clothes by spraying in a dehydration stage.

[0040] It should be noted that the laundry program generally includes washing, rinsing and dehydration. The present invention specifically uses a spraying method to retain the fragrance of clothes during the dehydration stage according to the user's spray fragrance control instructions, wherein the spray fragrance control instructions selected by the user may be fragrance mode instructions corresponding to different degrees of fragrance retention, for example, they may be slight fragrance mode instructions, light fragrance mode instructions or strong fragrance mode instructions. Of course, those skilled in the art may also set different classifications of fragrance mode instructions according to specific circumstances.

[0041] As a preferred embodiment of the present invention, step S2 includes the following steps: step S21, after the last rinse and drainage, determine whether the water absorption saturation of the clothes is less than a preset threshold, if not, enter step S22, if yes, directly enter step S23; step S22, perform a preliminary dehydration step; step S23, perform a spray fragrance step; step S24, perform a final dehydration step.

[0042] The present invention adopts a technical solution of spraying and retaining fragrance in the dehydration stage of washing and washing, controls the water absorption saturation of clothes, and sprays the fragrance agent solution with adjusted concentration onto the clothes to retain fragrance. Compared with the technical solution of adding the fragrance agent in the rinsing stage in the prior art, it is easier to control the concentration of the fragrance agent solution, and can make the fragrance agent molecules evenly attached to the clothing fibers to achieve the effect of even fragrance retention; the present invention is specifically carried out in the dehydration stage after draining in the last rinsing stage of the laundry program, and can adopt a solution of spraying while dehydrating, the fragrance agent solution is sprayed onto the clothes and then dehydrated and discharged, in this process the fragrance agent molecules are attached to the clothing fibers to achieve clothing fragrance retention, and the fragrance retention effect is even, the required fragrance retention time is short, and rapid fragrance retention can be achieved; the fragrance agent solution after dehydration can be recycled or directly discharged.

[0043] As a preferred embodiment of the present invention, the "receiving the spraying and fragrance control instruction selected by the user" in step S1 of the present invention includes the following steps: step S11, judging whether the user has selected the spraying and fragrance control instruction; step S12, if the judgment result is no, prompting the user whether it is necessary to select the fragrance control instruction; step S13, if the judgment result is yes, further judging whether the fragrance amount in the fragrance agent delivery cavity is greater than the required fragrance agent amount, if not, prompting the user to continue adding fragrance agent.

[0044] It can be understood that the spray fragrance control instructions of the present invention include instructions corresponding to different degrees of fragrance retention, which can be set by those skilled in the art as needed, for example, they can be instructions for a slight fragrance mode, instructions for a light fragrance mode, and instructions for a strong fragrance mode; and different spray fragrance control instructions correspond to different concentrations of fragrance solution; the present invention can determine the amount of fragrance solution required for spraying according to the weight of the clothes, determine the concentration of the fragrance solution according to the spray fragrance control instructions selected by the user, and then calculate the amount of fragrance required for spraying, and judge whether the fragrance added by the user can achieve the fragrance retention effect of the clothes.

[0045] As a preferred embodiment of the present invention, the step S21 of the present invention of "determining whether the water absorption saturation of the clothes is less than a preset threshold value" includes the following steps: step S211, detecting the dry weight of the clothes and the weight after the last rinse and drainage, and calculating the water absorption saturation of the clothes accordingly; step S212, determining whether the calculated water absorption saturation of the clothes is less than a preset threshold value. Here, the calculation formula of the water absorption saturation of the clothes is:

[0046] Among them, G1 is the dry weight of the clothes, G2 is the weight of the clothes after the last rinse and drainage, and S is the water absorption saturation of the clothes.

[0047] It can be understood that, the higher the fragrance retention degree of the spray fragrance control instruction, the lower the preset threshold value of the corresponding clothing water absorption saturation; for different spray fragrance control instructions, the solubility of the corresponding fragrance solution is different, and the higher the water absorption saturation of the clothing, the higher the water content of the corresponding clothing, and the water content of the clothing will reduce the concentration of the sprayed fragrance solution. Therefore, the higher the fragrance retention degree of the spray fragrance control instruction corresponds to, the higher the concentration of the fragrance solution sprayed on the clothing, and it is necessary to reduce the water absorption saturation of the clothing accordingly to reduce the impact on the concentration of the fragrance solution, so as to achieve the fragrance effect required by the user.

[0048] As a preferred embodiment of the present invention, the "performing a preliminary dehydration step" in step S22 of the present invention includes the following steps: step S221, determining the dehydration speed and dehydration time according to the material and / or weight of the clothes; step S222, controlling the drive motor to perform preliminary dehydration on the clothes according to the determined dehydration speed and dehydration time; step S223, re-determining whether the water absorption saturation of the clothes is less than a preset threshold.

[0049] It can be understood that the clothes reach the preset threshold after the initial dehydration. When the preset threshold of the water absorption saturation of the clothes is lower, a stronger dehydration effect is needed, that is, the washing machine rotates and dehydrates at a higher speed, until the water absorption saturation of the clothes reaches the preset threshold. In the case of a lot of clothes or the material is not easy to dehydrate, it is necessary to increase the speed of the initial dehydration and extend the time of the initial dehydration. The purpose of the initial dehydration of the present invention is to avoid the influence of the high water content of the clothes on the fragrance retention effect of the clothes. It should be noted that in order to achieve the fragrance retention effect desired by the user and to avoid the influence of the water content of the clothes, the concentration of the fragrance agent solution can be appropriately increased, so that after spraying clothes with a certain water content with the fragrance agent solution with an increased concentration, the fragrance retention effect desired by the user can be achieved.

[0050] As a preferred embodiment of the present invention, the "execution of the spraying and fragrance retention step" in step S23 of the present invention includes the following steps: step S231, determining the amount of fragrance solution required for spraying and fragrance retention according to the material and / or weight of the clothes; step S232, spraying the fragrance solution onto the surface of the clothes through the spraying device; step S233, controlling the rotation of the driving motor during the spraying process; here, the spraying effect can be made more uniform and the spraying and soaking effect of the clothes can be accelerated by rotating during the spraying process. It should be noted that the present invention does not specifically limit the structure of the spraying device, as long as it can achieve the spraying of the fragrance solution onto the surface of the clothes, for example, the spraying device may include a nozzle arranged in a barrel, the nozzle is connected to a water path, and during spraying, the fragrance solution is sprayed from the nozzle to the surface of the clothes through the water path.

[0051] It is understandable that the larger the measured value of the corresponding clothing weight, the larger the amount of fragrance solution required and the longer the required spraying fragrance retention time. The standard value can be preset here; for example, for clothes of standard weight, the amount of fragrance solution required to spray until it is completely soaked and the spraying fragrance retention time required to achieve the fragrance retention level required by the user are determined, and then according to the ratio of the current weight of the clothes to the standard weight, the required amount of fragrance solution and spraying fragrance retention time corresponding to the current clothes are obtained. Similarly, the required amount of fragrance solution is adjusted accordingly according to the different water absorption of the clothing material.

[0052] As a preferred embodiment of the present invention, step S233 is executed while executing step S232. It should be noted that the present invention can adopt a method of rotating and spraying, so that the fragrance solution sprayed on the clothes is more uniform during the rotation process, ensuring that the final fragrance effect is more uniform; when the rotation speed is relatively high, this process can also be understood as a solution of spraying and dehydrating, that is, the fragrance solution sprayed on the clothes is swung out by rotation after soaking the clothes. In this process, the fragrance molecules adhere to the surface of the clothes. The technical solution of spraying and dehydrating can accelerate the fragrance process of the clothes, reduce the time required for spraying and fragrance retention, and the fragrance effect of the clothes is more uniform.

[0053] As a preferred embodiment of the present invention, step S232 and step S233 are performed alternately. It should be noted that the present invention can also adopt a method of alternately performing spraying and rotating, during spraying, the fragrance agent solution soaks the clothes and gradually penetrates the clothes, during rotating, the position of the clothes changes, and the fragrance is sprayed on different positions of the clothes to achieve uniform spraying and fragrance retention.

[0054] As a preferred embodiment of the present invention, "determining the dehydration speed and dehydration time according to the material and / or weight of the clothes" in step S221 includes the following steps: determining the water absorption coefficient of the clothes according to the material of the clothes; determining the dehydration speed and dehydration time according to the water absorption coefficient and / or weight of the clothes.

[0055] It should be noted that, if the water absorption coefficient of clothes is relatively high and the measured weight of clothes is relatively large, it is necessary to appropriately increase the dehydration speed and dehydration time to achieve the set initial dehydration effect.

[0056] As a preferred embodiment of the present invention, "performing the final dehydration step" in step S24 further includes: after the spraying and fragrance-retaining operation is completed, controlling the driving motor to perform the final dehydration step on the clothes according to the dehydration curve, and discharging the fragrance-retaining agent solution after the final dehydration through the drainage pipeline.

[0057] After the clothes have been sprayed for the set fragrance retention time, they have achieved the fragrance retention effect selected by the user. At this time, the clothes are finally dehydrated according to the dehydration curve. This step is a regular step in the laundry program. The clothes are driven by the driving motor to rotate at a high speed to dry the water in the clothes. Those skilled in the art can set the dehydration speed and dehydration time of the final dehydration step as needed.

[0058] As a preferred embodiment of the present invention, in step S23, the corresponding spraying fragrance retention time is set according to the weight and / or material of the clothes. It can be understood that different spraying fragrance retention times are set for different clothing weights and different clothing materials to achieve the corresponding fragrance retention effect. For example, if the weight of the clothes is relatively large, a relatively long spraying fragrance retention time is required to achieve the fragrance retention effect desired by the user.

[0059] The embodiment of the present invention further discloses a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the above-mentioned spray fragrance control method.

[0060] An embodiment of the present invention also discloses a washing machine, including a washing machine body and an electronic device, the electronic device including a processor, a memory and a program, wherein the program is stored in the memory and is configured to be executed by the processor, the program includes a method for executing the above-mentioned spray fragrance control method; the washing machine body includes an outer drum and an inner drum for accommodating clothes.

[0061] In summary, the fragrance control method of the present invention realizes fragrance retention by spraying fragrance on clothes. According to the spray fragrance control program selected by the user, the concentration of the corresponding fragrance solution can be obtained, and the required fragrance solution amount and spray fragrance time can be obtained according to the weight and / or material of the clothes. The clothes are evenly sprayed by the spray water circuit and the spray device, and after the spray fragrance time is reached, the final dehydration step is performed to complete the spray fragrance. In a further technical solution, preliminary dehydration can be adopted to control the moisture content of the clothes, and then spraying fragrance can be performed to achieve the fragrance effect of the fragrance retention degree selected by the user.

[0062] It should be noted that the above implementation mode is only used to illustrate the principles of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above method so that the present invention can be applied to more specific application scenarios.

[0063] For example, in an alternative embodiment, in the dehydration stage after rinsing and draining, the clothes are dehydrated according to the dehydration curve, and the spraying and fragrance retention operation can be performed in the early or middle stage of dehydration, and the fragrance of the clothes is retained after the dehydration is completed; the normal dehydration time can also be appropriately extended to ensure the effect of spraying and fragrance retention and the final dryness of the clothes after dehydration.

[0064] For example, in an alternative embodiment, the corresponding clothing water absorption saturation threshold is obtained according to the spray fragrance control instruction selected by the user, and the concentration of the fragrance solution is corrected according to the clothing water absorption saturation threshold; when the clothes are wet, the moisture contained in them will dilute the fragrance solution, so the concentration of the fragrance solution needs to be appropriately increased to ensure that the fragrance effect of the degree selected by the user is ultimately achieved.

[0065] For example, in an alternative embodiment, the fragrance retaining agent of the present invention may be a fragrance retaining agent only, or a softener with a fragrance retaining function, or a disinfectant with a fragrance retaining function, or a combination of the above three functions.

[0066] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle 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 these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for controlling the spray fragrance retention of a washing machine, characterized in that: The spray fragrance control method comprises the following steps: Step S1, receiving a spray fragrance control instruction selected by a user; Step S2, during the dehydration stage, a spraying method is used to perform a fragrance-retaining operation on the clothes.

2. The spray fragrance control method for a washing machine according to claim 1, characterized in that: The step S2 comprises the following steps: Step S21, after the last rinse and drainage, determine whether the water absorption saturation of the clothes is less than a preset threshold, if not, proceed to step S22, if yes, directly proceed to step S23; Step S22, performing a preliminary dehydration step; Step S23, performing a spraying and fragrance retention step; Step S24, performing the final dehydration step.

3. The spray fragrance control method for a washing machine according to claim 1, characterized in that: The step S1 of "receiving the spray fragrance control instruction selected by the user" includes the following steps: Step S11, determining whether the user has selected the spray fragrance control instruction; Step S12, if the judgment result is no, prompting the user whether to select a fragrance retention control instruction; Step S13, if the judgment result is yes, then further judge whether the amount of fragrance in the fragrance delivery chamber is greater than the required amount of fragrance, if not, then prompt the user to continue to add fragrance.

4. The spray fragrance control method for a washing machine according to claim 2, characterized in that: The step S21 of "determining whether the water absorption saturation of the clothes is less than a preset threshold" includes the following steps: Step S211, detecting the dry weight of the clothes and the weight after the last rinse and drainage, and calculating the water absorption saturation of the clothes accordingly; Step S212, determining whether the calculated water absorption saturation of the clothes is less than the preset threshold.

5. The spray fragrance control method for a washing machine according to claim 2, characterized in that: The "performing a preliminary dehydration step" in step S22 includes the following steps: Step S221, determining the spin speed and spin time according to the material and / or weight of the clothes; Step S222, controlling the driving motor to perform preliminary dehydration on the clothes according to the determined dehydration speed and dehydration time; Step S223, re-determine whether the water absorption saturation of the clothes is less than the preset threshold.

6. The spray fragrance control method for a washing machine according to claim 2, characterized in that: The "performing the spraying and fragrance retention step" in step S23 comprises the following steps: Step S231, determining the amount of fragrance solution required for spraying fragrance according to the material and / or weight of the clothes; Step S232, spraying the fragrance agent solution onto the surface of the clothing through a spraying device; Step S233, controlling the driving motor to rotate during the spraying process.

7. The spray fragrance control method for a washing machine according to claim 6, characterized in that: The step S221 of "determining the spin speed and spin time according to the material and / or weight of the clothes" includes the following steps: Determine the water absorption coefficient of clothing based on the material of the clothing; Determine the spin speed and spin time according to the water absorption coefficient and / or weight of the clothes.

8. The spray fragrance control instruction for a washing machine according to claim 2, characterized in that: The "performing a final dehydration step" in step S24 further comprises: After the spraying and fragrance-retaining operation is completed, the driving motor is controlled to perform the final dehydration step on the clothes according to the dehydration curve, and the fragrance-retaining agent solution after the final dehydration is discharged through the drainage pipeline.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The computer program is executed by the processor according to the spray fragrance control method described in any one of claims 1-8.

10. A washing machine, characterized in that: The invention comprises a washing machine body and an electronic device, wherein the electronic device comprises a processor, a memory and a program, wherein the program is stored in the memory and is configured to be executed by the processor, and the program comprises a method for executing the spray fragrance control method as described in any one of claims 1 to 8; the washing machine body comprises an outer drum and an inner drum for accommodating clothes.

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