CN112481930B - Control method of washing machine and washing machine - Google Patents

Abstract

The invention discloses a control method of a washing machine and the washing machine, wherein the control method of the washing machine comprises the following steps: the sterilization process is synchronously executed in the process of executing the washing process, and the program time length of the executed washing process is larger than or equal to the set value. According to the invention, the sterilization program is synchronously executed in the process of executing the washing program, and the program time length of the executed washing program is larger than or equal to the set value, so that the washing program and the sterilization program can be executed to be finished within the program time length of the washing program after the sterilization program is started; meanwhile, the method of the invention also realizes that the washing program is correspondingly changed according to the needs of the user, improves the user experience and avoids the waste of resources.

Description

A washing machine control method and washing machine

Technical Field

The present invention belongs to the field of washing machines, and in particular, relates to a control method of a washing machine and a washing machine.

Background technique

At present, washing machines have become a must-have appliance in households. Ordinary washing machines use tap water to wash clothes and dissolve washing powder to remove stains. Since there are some organic pollutants in tap water and clothes being washed, such as viruses, microorganisms and other fungi, and detergents such as washing powder are difficult to kill such viruses, microorganisms and other fungi, it is difficult for ordinary washing machines to achieve the function of sterilization and disinfection during the washing process. To solve this problem, a sterilization device is set on the existing washing machine to enable the washing machine to have the function of sterilization and disinfection. Correspondingly, the washing program of the washing machine is a sterilization washing program, which enables the washing machine to perform sterilization and disinfection operations. However, in some cases, the user does not need the washing machine to perform sterilization and disinfection operations, but because the washing program cannot be changed accordingly according to the user's needs, the washing machine still performs sterilization and disinfection operations, thereby resulting in poor user experience and waste of resources.

In view of this, the present invention is proposed.

Summary of the invention

The first technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a control method for a washing machine to solve the technical problem that the washing program cannot be changed accordingly according to user needs.

The second technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine to solve the technical problems of poor user experience and waste of resources.

In order to solve the above-mentioned first technical problem, the basic concept of the technical solution adopted by the present invention is:

A control method for a washing machine, wherein a sterilization program is synchronously executed during a washing program, and the program duration of the executed washing program is greater than or equal to a set value.

Further, after the sterilization program is started, it is determined whether the program duration set for the started washing program is greater than or equal to the set value; if it is greater than or equal to the set value, the started washing program is executed according to the set program duration; if it is less than the set value, the program duration set for the started washing program is extended by ΔT, and the extended program duration is greater than or equal to the set value, and the started washing program is executed according to the extended program duration;

Alternatively, after starting the sterilization program, determine whether the program duration set for the washing program to be started is greater than or equal to the set value; if it is greater than or equal to the set value, the washing program to be started is executed according to the set program duration after starting; if it is less than the set value, the program duration set for the washing program to be started is extended by ΔT, and the extended program duration is greater than or equal to the set value, and the washing program to be started is executed according to the extended program duration after starting.

Furthermore, when the washing program is started, it is determined whether the sterilization program has been started; if the sterilization program has been started, it is determined whether the program duration set for the started washing program is greater than or equal to the set value; if the sterilization program has not been started, the started washing program is executed.

Furthermore, the washing program includes at least one and the program duration set for at least one washing program is greater than or equal to the set value. After starting the sterilization program, it is determined whether the program duration set for the washing program to be started is greater than or equal to the set value; if it is greater than or equal to the set value, the washing program to be started can be started; if it is less than the set value, the washing program to be started cannot be started.

Furthermore, a sterilization program is synchronously performed during the rinsing phase of the washing program;

Preferably, a sterilization program is performed synchronously during the water intake process in the rinsing phase of the washing program.

Furthermore, the washing program includes a plurality of rinsing stages, and the sterilization program is synchronously performed in the last rinsing stage of the washing program;

Preferably, a sterilization program is performed synchronously during the water intake process in the last rinsing stage of the washing program.

Further, the set value is greater than or equal to the program duration set for the washing program;

Preferably, the set value is greater than or equal to the sum of the program duration set for the washing program and the program duration set for the sterilization program.

Further, ΔT is a continuous duration, and ΔT is set at any time node in the program duration after the washing program is extended, or ΔT includes a plurality of segmented durations spaced apart, and each segmented duration is set at any time node in the program duration after the washing program is extended.

In order to solve the above second technical problem, the basic concept of the technical solution adopted by the present invention is:

A washing machine adopting any of the control methods described above, the washing machine comprises a sterilization mechanism for sterilizing washing water of the washing machine.

Further, the sterilization mechanism includes a first sterilization device provided on the water inlet pipe of the washing machine and a flow control valve provided on the water inlet pipe of the washing machine upstream of the first sterilization device;

And/or, the sterilization mechanism includes a circulation pipeline whose two ends are respectively connected to the water tub of the washing machine to form a loop, a second sterilization device arranged on the circulation pipeline, and a circulation pump arranged on the circulation pipeline.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

The present invention synchronously executes a sterilization program during the execution of a washing program, and the program duration of the executed washing program is greater than or equal to a set value, thereby ensuring that after the sterilization program is started, both the washing program and the sterilization program can be executed to completion within the program duration of the washing program; at the same time, the method of the present invention also enables the washing program to be changed accordingly according to user needs, thereby improving user experience and avoiding waste of resources.

The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

FIG1 shows a schematic flow chart of a control method of the present invention;

FIG2 shows a schematic flow chart of another control method of the present invention;

FIG3 shows an exploded view of the structure of the sterilization device of the present invention;

FIG4 shows a schematic structural diagram of a sterilization device according to the present invention;

FIG5 shows a schematic structural diagram of a washing machine including a sterilizing device according to the present invention.

In the figure: 1-pipeline, 2-pipeline inlet, 3-pipeline outlet, 4-generating part, 5-fixing part, 6-sealing gasket, 7-annular boss, 8-power supply part, 9-cleaning equipment, 10-water supply mechanism, 11-water source, 12-water inlet pipeline, 13-generating pipe section, 14-extension pipe section, 15-fixing pipe section.

It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

As shown in FIG. 1-2 , an embodiment of the present invention introduces a control method for a washing machine, in which a sterilization program is synchronously executed during a washing program, and the program duration of the executed washing program is greater than or equal to a set value.

The present invention synchronously executes a sterilization program during the execution of a washing program, and the program duration of the executed washing program is greater than or equal to a set value, thereby ensuring that after the sterilization program is started, both the washing program and the sterilization program can be executed to completion within the program duration of the washing program; at the same time, the method of the present invention also enables the washing program to be changed accordingly according to user needs, thereby improving user experience and avoiding waste of resources.

Among them, the washing program includes the washing stage, the rinsing stage and other stages. The washing stage includes the water intake process, the washing process and other processes. The rinsing stage includes the water intake process, the rinsing process and other processes, which are not repeated here; the sterilization program is used to sterilize the washing water, clothes, etc. of the washing machine; the program duration is the time from the start of the program to the end of the program; the set value is greater than or equal to the program duration set for the washing program; preferably, the set value is greater than or equal to the sum of the program duration set for the washing program and the program duration set for the sterilization program, so as to ensure that both the sterilization program and the washing program can be executed and completed.

Referring to Figure 1, in this embodiment, after the sterilization program is started, it is determined whether the program duration set for the started washing program is greater than or equal to the set value; if it is greater than or equal to the set value, the started washing program is executed according to the set program duration; if it is less than the set value, the program duration set for the started washing program is extended by ΔT, and the extended program duration is greater than or equal to the set value, and the started washing program is executed according to the extended program duration.

In this embodiment, after starting the sterilization program, it is determined whether the program duration set for the washing program to be started is greater than or equal to the set value; if it is greater than or equal to the set value, the washing program to be started is executed according to the set program duration after starting; if it is less than the set value, the program duration set for the washing program to be started is extended by ΔT, and the extended program duration is greater than or equal to the set value, and the washing program to be started is executed according to the extended program duration after starting.

Referring to Figure 1, in this embodiment, when the washing program is started, it is determined whether the sterilization program has been started; if the sterilization program has been started, it is determined whether the program duration set for the started washing program is greater than or equal to the set value; if the sterilization program has not been started, the started washing program is executed.

Specifically, when the washing program is started, it is determined whether the sterilization program has been started; if the sterilization program has been started, it is determined whether the program duration set for the started washing program is greater than or equal to the set value; if it is greater than or equal to the set value, the started washing program is executed according to the set program duration; if it is less than the set value, the program duration set for the started washing program is extended by ΔT, and the extended program duration is greater than or equal to the set value, and the started washing program is executed according to the extended program duration; if the sterilization program is not started, the started washing program is executed.

Referring to Figure 2, in this embodiment, the washing program includes at least one and the program duration set for at least one washing program is greater than or equal to the set value. After starting the sterilization program, it is determined whether the program duration set for the washing program to be started is greater than or equal to the set value; if it is greater than or equal to the set value, the washing program to be started can be started; if it is less than the set value, the washing program to be started cannot be started.

Among them, the start button of the washing program to be started that can be started and the start button of the washing program to be started that cannot be started are in different states to remind the user, such as: the start button of the washing program to be started that can be started is highlighted, and the start button of the washing program to be started that cannot be started is dim.

In this embodiment, the sterilization program is synchronously executed during the rinsing phase of the washing program; preferably, the sterilization program is synchronously executed during the water intake process during the rinsing phase of the washing program.

The present invention improves the sterilization effect through the above arrangement.

The sterilization program starts when the water inlet process of the rinsing stage begins and ends when the water inlet process of the rinsing stage ends.

In this embodiment, the washing program includes multiple rinsing stages, and the sterilization program is synchronously executed in the last rinsing stage of the washing program; preferably, the sterilization program is synchronously executed during the water intake process in the last rinsing stage of the washing program.

The present invention further improves the sterilization effect through the above arrangement.

The sterilization program starts when the water inlet process of the last rinsing stage begins, and ends when the water inlet process of the last rinsing stage ends.

Specifically, when the washing program is started, it is determined whether the sterilization program has been started; if the sterilization program has been started, it is determined whether the program duration set for the started washing program is greater than or equal to the set value; if it is greater than or equal to the set value, the started washing program is executed according to the set program duration, and the sterilization program is synchronously executed in the last rinsing stage of the washing program; if it is less than the set value, the program duration set for the started washing program is extended by ΔT, and the extended program duration is greater than or equal to the set value, the started washing program is executed according to the extended program duration, and the sterilization program is synchronously executed in the last rinsing stage of the washing program; if the sterilization program is not started, the started washing program is executed.

In this embodiment, ΔT is a continuous duration, and ΔT is set at any time node in the program duration after the washing program is extended, or ΔT includes a plurality of segmented durations spaced apart from each other, and each segmented duration is set at any time node in the program duration after the washing program is extended.

As shown in FIG. 5 , an embodiment of the present invention further introduces a washing machine using any of the control methods described above, wherein the washing machine includes a sterilization mechanism for sterilizing washing water of the washing machine.

The sterilization mechanism includes a first sterilization device arranged on the water inlet pipe of the washing machine and a flow control valve arranged on the water inlet pipe of the washing machine upstream of the first sterilization device; and/or, the sterilization mechanism includes a circulation pipeline whose two ends are respectively connected to the water tub of the washing machine to form a loop, a second sterilization device arranged on the circulation pipeline and a circulation pump arranged on the circulation pipeline.

The water inlet pipe of the washing machine is a pipe that supplies water to the water tub of the washing machine, and the flow control valve is used to reduce the water flow through the water inlet pipe of the washing machine, specifically, the water flow through the water inlet pipe of the washing machine is reduced during the water inlet process compared to when the sterilization program is not started. The sterilization mechanism starts working when the sterilization program starts to be executed, and ends working when the sterilization program ends.

The sterilization mechanism includes a first sterilization device arranged on the water inlet pipe of the washing machine and a flow control valve arranged on the water inlet pipe of the washing machine upstream of the first sterilization device. When the sterilization mechanism is working, the first sterilization device is started to sterilize the water flowing through the water inlet pipe of the washing machine, and the flow control valve is started to reduce the flow rate of water flowing through the water inlet pipe of the washing machine, thereby ensuring the action time of the first sterilization device and the water flowing through the water inlet pipe of the washing machine and improving the sterilization effect. The sterilization mechanism includes a circulation pipeline whose two ends are respectively connected to the water tub of the washing machine to form a loop, a second sterilization device arranged on the circulation pipeline and a circulation pump arranged on the circulation pipeline. When the sterilization mechanism is working, the second sterilization device is started to sterilize the water flowing through the circulation pipeline, and the circulation pump is started to supply the water in the water tub to the circulation pipeline for sterilization, and then supply it to the water tub for washing. Specifically, the circulation pump is started after the water flow in the water tub reaches a certain amount to avoid idling. Correspondingly, when the sterilization mechanism includes a circulation pipeline whose two ends are respectively connected to the water tub of the washing machine to form a loop, a second sterilization device arranged on the circulation pipeline and a circulation pump arranged on the circulation pipeline, the sterilization mechanism works after the water flow in the water tub reaches a certain amount, and the sterilization program is executed after the water flow in the water tub reaches a certain amount.

As shown in Figures 3-4, an embodiment of the present invention introduces a sterilization device, including: a pipeline 1 having an inlet and an outlet; an ozone generating structure, including a generating part 4 arranged inside the pipeline 1, and the generating part 4 reacts with the water flowing through the pipeline 1 to generate ozone.

When the sterilization device 10 of the present invention is applied to a washing machine 9, it only needs to connect the pipe 1 therein in series to the water inlet pipe 12 of the washing machine 9 to exert the ozone sterilization function. The process is simple, and real-time sterilization of the water inlet of the washing machine 9 is also achieved, thereby avoiding the problem that the washing machine 9 using the sterilization device 10 cannot fill with water in time after issuing a water inlet command, thereby improving the user experience.

The first sterilization device and the second sterilization device are the above-mentioned sterilization devices. The pipe 1 of the first sterilization device is connected in series to the water inlet pipe of the washing machine, and the pipe 1 of the second sterilization device is connected in series to the circulation pipe.

The water inlet pipeline of the washing machine is connected with the water inlet arranged on the washing machine casing and the water source outlet arranged outside the washing machine casing, and the circulation pipeline is arranged inside the washing machine casing.

Among them, the generating part 4 is an electrode or ultraviolet lamp used to electrolyze water to generate ozone, and the pipeline 1 is made of a material that is stable to ozone. When the generating part 4 is an electrode used to electrolyze water to generate ozone, the material of the pipeline 1 also needs to be insulated. The electrodes include two, one electrode is the anode and the other electrode is the cathode.

Referring to Figures 3-4, in this embodiment, the pipeline includes a generating pipe segment 13, and the generating part 4 is arranged inside the generating pipe segment 13. The generating part 4 is in the shape of a strip extending axially along the generating pipe segment 13, and there is a gap between the outer wall of the generating part 4 and the inner wall of the generating pipe segment 13 for water to flow through; preferably, the axis of the generating pipe segment 13 extends in a straight line, and the generating part 4 is in the shape of a straight strip and is arranged on the axis of the generating pipe segment 13.

The present invention enables the incoming water to be fully sterilized during the transportation process through the above arrangement.

The outer diameter of the generating part 4 is smaller than the inner diameter of the generating tube segment 13, and the axial length of the generating part 4 is smaller than or equal to the axial length of the generating tube segment 13. Preferably, the axis of the generating tube segment 13 extends horizontally. The radial section of the inner wall of the generating tube segment 13 is circular, and the radial section of the outer wall of the generating part 4 is circular.

3-4 , in this embodiment, one axial end of the generating pipe segment 13 is closed, and an inlet of the generating pipe segment 13 whose axis is perpendicular to the axis of the generating pipe segment 13 is provided at the closed end of the generating pipe segment 13 , and one end opposite to the closed end of the generating pipe segment 13 is open, and the open end of the generating pipe segment 13 constitutes an outlet of the generating pipe segment 13 .

Among them, the closed end of the generating pipe segment 13 is provided with an inlet of the generating pipe segment 13 whose axis is perpendicular to the axis of the generating pipe segment 13 . In other words, the outlet of the generating pipe segment 13 is arranged on the pipe wall of the generating pipe segment 13 and fits the closed end of the generating pipe segment 13 .

Referring to Figures 3-4, in this embodiment, an extension pipe segment 14 is provided at the inlet of the generating pipe segment 13, which is coaxial with the inlet of the generating pipe segment 13 and connected to the inlet of the generating pipe segment 13. The end of the extension pipe segment 14 away from the generating pipe segment 13 is open, and the open end of the extension pipe segment 14 constitutes the pipeline inlet 2, and the outlet of the generating pipe segment 13 constitutes the pipeline outlet 3.

The generated pipe section 13 and the extended pipe section 14 are integrally formed. The axis of the extended pipe section 14 extends in a straight line, and the radial section of the inner wall of the extended pipe section 14 is circular.

Referring to Fig. 3-4, in this embodiment, a mounting port is provided on the pipe 1, and the ozone generating structure includes a fixing portion 5, which is provided at one end of the generating portion 4, and the generating portion 4 is inserted into the pipe 1 from the mounting port, and the fixing portion 5 is fixed at the mounting port and closes the mounting port;

The present invention allows the pipeline 1 and the generating unit 4 to be repaired and replaced when a failure occurs due to the above arrangement.

The inner diameter of the installation opening is greater than or equal to the outer diameter of the generating portion 4 , and the outer diameter of the fixing portion 5 is greater than or equal to the inner diameter of the installation opening.

3-4 , in this embodiment, the installation port is provided at the closed end of the generating pipe section 13 , and the fixing portion 5 is provided at one end of the generating portion 4 in the axial direction.

The present invention enables the generating part 4 to be coaxially inserted into the generating pipe section 13 through the above arrangement.

Referring to Figures 3-4, in this embodiment, a fixed pipe section 15 coaxial with the mounting port and connected to the mounting port is provided at the mounting port, the end of the fixed pipe section 15 away from the generating pipe section 13 is open, a first thread is provided on the inner wall of the fixed pipe section 15, the fixing portion 5 is columnar coaxial with the generating portion 4, a second thread corresponding to the first thread is provided on the outer wall of the fixing portion 5, and the fixing portion 5 is threadedly fixed to the inside of the fixed pipe section 15 and closes the mounting port.

The present invention makes the sealing of the installation opening more simple and reliable through the above arrangement.

The outer diameter of the fixing portion 5 is greater than the outer diameter of the generating portion 4, the inner diameter of the fixing pipe segment 15 matches the outer diameter of the fixing portion 5, the axial length of the fixing portion 5 is greater than the axial length of the fixing pipe segment 15, and the fixing pipe segment 15 is integrally formed with the generating pipe segment 13. The axis of the fixing pipe segment 15 extends in a straight line, and the radial section of the inner wall of the fixing pipe segment 15 is circular.

Specifically, the sterilization device 10 includes an integrally formed tube body, which is a three-way structure, having a first opening, a second opening and a third opening, the first opening and the second opening are arranged on the same axis, the axis of the third opening is perpendicular to the axis of the first opening and the second opening, the channel connecting the second opening and the third opening is the pipeline 1, the second opening is the pipeline inlet 2, the second opening is the pipeline outlet 3, the channel connecting the second opening and the intersection of the three-way structure is the generated pipe section 13, the channel connecting the third opening and the intersection of the three-way structure is the extended pipe section 14, and the channel connecting the first opening and the intersection of the three-way structure is the fixed pipe section 15.

3-5 , in this embodiment, the end of the fixing portion 5 away from the generating portion 4 has a radially protruding annular boss 7 , and the open end of the fixing pipe section 15 is pressed against the annular boss 7 via the sealing gasket 6 .

The present invention improves the reliability of sealing the installation opening through the above arrangement.

The sealing gasket 6 is made of elastic material and is in the shape of a circular ring. Its inner diameter is equal to the outer diameter of the fixing part 5 , and the outer diameter of the sealing ring is greater than the outer diameter of the fixing part 5 .

Referring to Figures 3-5, in this embodiment, the ozone generating structure also includes a power supply part 8 for supplying power to the generating part 4. Specifically, the power supply part 8 is a wiring terminal, and the first end of the power supply part 8 is connected to the generating part 4 through the fixing part 5, and the second end is connected to the power supply outside the sterilization device 10.

In the present embodiment, the ozone generating structure includes an output for outputting ozone, an output pipeline extending to the inside of the pipeline, and the pipe wall of the output pipeline is densely covered with through holes. Correspondingly, the ozone generating structure also includes a generation module for generating ozone and a supply pipeline connecting the generation module and the output pipeline. Further, the output pipeline is arranged inside the generation pipe section 13, the axis of the output pipeline extends in the same direction as the axis of the generation pipe section 13, and there is a gap between the outer wall of the output pipeline and the inner wall of the generation pipe section 13 for the water flow to flow through. Further, the fixing portion 5 is also arranged at one end of the output pipeline, specifically, the fixing portion 5 is arranged at one end of the output pipeline in the axial direction, and the output pipeline is parallel to the generation portion 4. Among them, the first end of the supply pipeline is connected to the generation module, and the second end is connected to the output pipeline through the fixing portion 5.

During the operation of the washing machine 9, water is first introduced, and then the generating unit 4 is operated. When the generating unit 4 is an ultraviolet lamp, after the washing machine 9 is filled with water, the generating unit 4 continues to operate for a certain period of time.

The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims (10)

1. A control method of washing machine is characterized in that sterilization program is synchronously executed in the process of executing washing program, and the program time length of the executed washing program is larger than or equal to a set value;

The washing machine comprises a sterilizing mechanism for sterilizing washing water of the washing machine; the sterilization mechanism comprises a first sterilization device arranged on a water inlet pipeline of the washing machine, a flow control valve arranged on the water inlet pipeline of the washing machine and arranged on the upstream of the first sterilization device, and when the sterilization mechanism works, the first sterilization device is started to sterilize water flowing through the water inlet pipeline of the washing machine, the flow control valve is started to reduce the flow rate of the water flowing through the water inlet pipeline of the washing machine, so that the action time of the first sterilization device and the water flowing through the water inlet pipeline of the washing machine is ensured;

The washing program includes a plurality of rinsing stages, and the sterilization program is synchronously executed in the last rinsing stage of the washing program; the sterilization procedure starts when the last rinse phase water intake process begins and ends when the last rinse phase water intake process ends.

2. The control method of a washing machine as claimed in claim 1, wherein after the sterilization process is started, it is judged whether a program duration set by the started washing process is greater than or equal to a set value; if the washing time is greater than or equal to the set value, executing the started washing program according to the set program time length; if the set time length is smaller than the set value, the set program time length of the started washing program is prolonged by delta T, the prolonged program time length is larger than or equal to the set value, and the started washing program is executed according to the prolonged program time length;

or after the sterilization program is started, judging whether the program duration set by the washing program to be started is greater than or equal to a set value; if the washing time is greater than or equal to the set value, executing the washing program to be started according to the set program time after starting; if the program time length is smaller than the set value, the program time length set by the washing program to be started is prolonged by delta T, the prolonged program time length is larger than or equal to the set value, and the washing program to be started is executed according to the prolonged program time length after the washing program to be started is started.

3. The control method of a washing machine as claimed in claim 2, wherein when the washing process is started, it is judged whether the sterilization process has been started; if the sterilization program is started, judging whether the program duration set by the started washing program is greater than or equal to a set value; if the sterilization process is not started, the started washing process is executed.

4. The control method of a washing machine as claimed in claim 1, wherein the washing program includes at least one program time period set by the at least one washing program being greater than or equal to a set value, and after the sterilization program is started, it is judged whether the program time period set by the washing program to be started is greater than or equal to the set value; if the washing program is larger than or equal to the set value, the washing program to be started can be started; if the washing program is smaller than the set value, the washing program to be started cannot be started.

5. A control method of a washing machine according to any one of claims 1 to 4, wherein the sterilization process is performed simultaneously in the rinsing phase of the washing process.

6. The control method of a washing machine as claimed in claim 5, wherein the sterilization process is synchronously performed during the water inlet of the rinsing stage of the washing process.

7. A control method of a washing machine according to any one of claims 1 to 4, wherein the set value is greater than or equal to a program duration set by the washing program.

8. The control method of a washing machine as claimed in claim 7, wherein the set value is greater than or equal to a sum of a program duration set by the washing program and a program duration set by the sterilization program.

9. The control method of a washing machine according to claim 2, wherein Δt is a continuous time period, Δt is set at any time node in a program time period after the extension of the washing program, or Δt includes a plurality of segment time periods spaced apart, each segment time period being set at any time node in the program time period after the extension of the washing program, respectively.

10. A washing machine employing the control method of any one of claims 1 to 9, the washing machine comprising a sterilizing mechanism for sterilizing washing water of the washing machine;

A sterilization apparatus comprising: a conduit having an inlet and an outlet; the ozone generating structure comprises a generating part arranged in the pipeline, and the generating part reacts with water flow flowing through the pipeline to generate ozone;

One end of the generating pipe section in the axial direction is closed, a generating pipe section inlet with the axis perpendicular to the axis of the generating pipe section is arranged at the closed end of the generating pipe section, an extension pipe section which is coaxial with the generating pipe section inlet and communicated with the generating pipe section inlet is arranged at the generating pipe section inlet,

The ozone generating structure comprises a fixing part, wherein the fixing part is arranged at one end of the generating part, the generating part is inserted into the pipeline from the mounting opening, and the fixing part is fixed at the mounting opening and seals the mounting opening;

The installation port is provided with a fixed pipe section which is coaxial with the installation port and is communicated with the installation port, one end of the fixed pipe section, which is far away from the generation pipe section, is opened, the inner wall of the fixed pipe section is provided with a first thread, the outer wall of the fixed part is provided with a second thread which corresponds to the first thread, and the thread of the fixed part is fixed in the fixed pipe section and seals the installation port.