Control method of washing machine and washing machine

Abstract

The present application relates to the technical field of washing machines, and discloses a control method of a washing machine, which comprises the following steps: detecting the humidity in a washing tub during a heating washing process, calculating the change difference of the humidity within a preset time, and judging whether the change difference of the humidity is greater than a preset humidity value; if yes, it is judged that the door lock of the washing machine is invalid, and the door body is opened; detecting the water temperature in the washing tub, and judging whether the water temperature in the washing tub is greater than a preset temperature; if yes, water is fed into the washing tub. When the door lock of the washing machine is invalid, and the door body is opened; in order to avoid scalding of the user by hot water, the water temperature in the washing tub is detected, it is judged whether the water temperature in the washing tub is greater than a preset temperature, if yes, water is fed into the washing tub to reduce the temperature in the washing tub, avoid the risk of direct contact with hot water due to the invalid door lock during the washing process, and enhance the user satisfaction and improve the product reputation.

Description

Technical Field

[0001] This invention relates to the field of washing machine technology, and in particular to a control method for a washing machine and a washing machine itself. Background Technology

[0002] With the improvement of people's living standards, washing machines with heating and sterilization functions are highly sought after by consumers. Washing machines with heating functions generally have a door lock that closes during the heating process to prevent users from being scalded by hot water. However, if the door lock fails, even if the washing machine alarms, users can easily open the lid, posing a risk of scalding and leading to a poor user experience, increased user complaints, and damage to the product's reputation. Therefore, there is an urgent need to design a control method and a washing machine that prevents users from being scalded by hot water in the washing tub when the door lock fails and the door is opened. Summary of the Invention

[0003] The purpose of this invention is to propose a control method and a washing machine that solves the technical problem of existing washing machines where the door lock fails and there is a risk of scalding to the user when the door is opened.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This invention provides a control method for a washing machine, comprising the following steps:

[0006] During the heating and washing process, the humidity inside the washing tub is detected, and the difference in humidity change over a preset time period is calculated. It is then determined whether the difference in humidity change is greater than the preset humidity value. If so, it is determined that the door lock of the washing machine has failed and the door is opened.

[0007] The system detects the water temperature inside the washing tub to determine if it exceeds the preset temperature; if so, it adds water to the tub.

[0008] The control method of this washing machine detects the humidity inside the washing tub during the heating and washing process, calculates the difference in humidity change over a preset time, and determines whether the difference in humidity change is greater than the preset humidity value. If so, it determines that the washing machine door lock is invalid and the door is opened. To prevent users from being scalded by hot water, it detects the water temperature inside the washing tub and determines whether the water temperature inside the washing tub is greater than the preset temperature. If so, it introduces water into the washing tub to lower the temperature inside the washing tub, avoiding the risk of users directly contacting hot water during the washing process due to door lock failure. This enhances user satisfaction and improves product reputation.

[0009] As a preferred embodiment of the control method for the aforementioned washing machine, if the door lock is detected to be faulty and the door is opened, the washing machine will stop heating and issue an alarm.

[0010] If a door lock failure is detected, the door will open, the washing machine will stop heating, and an alarm will sound to remind the user that the door lock has failed and the door is open, so that the user can take timely action.

[0011] As a preferred embodiment of the control method for the aforementioned washing machine, the washing machine, while issuing an alarm, transmits information about the door lock failure and the door opening to a mobile terminal that is communicatively connected to the washing machine.

[0012] By sending a message to a mobile device indicating that the door lock has failed and the door is open, users who are not near the washing machine can be alerted.

[0013] As a preferred embodiment of the control method for the aforementioned washing machine, the washing machine stops heating, and when the water temperature in the washing tub cools down to a preset low temperature, the washing machine sends a reminder to the user to repair the door lock.

[0014] When the water temperature inside the washing machine cools down to the preset low temperature, the washing machine sends a reminder. At this point, the water temperature has dropped to a level where there is no risk of scalding, reminding the user to repair the door lock.

[0015] As a preferred embodiment of the control method for the aforementioned washing machine, the washing machine stops filling with water when the water level in the washing tub reaches a preset level and / or the water temperature in the washing tub is less than or equal to the preset temperature.

[0016] When the water level in the washing tub reaches the preset level and / or the water temperature in the washing tub is less than or equal to the preset temperature, there is no risk of scalding to the user, and the washing machine can stop filling with water.

[0017] As a preferred embodiment of the control method for the aforementioned washing machine, after the washing machine stops filling with water, the washing machine prompts the user whether to perform a spin-drying process; if the washing machine receives the user's selection to perform a spin-drying process, then the washing machine performs the spin-drying process.

[0018] After the washing machine stops filling with water, it prompts the user whether to perform a spin cycle. If the washing machine receives the user's request to perform a spin cycle, it will then perform the spin cycle to ensure the clothes are washed.

[0019] As a preferred embodiment of the control method for the aforementioned washing machine, determining whether the humidity change difference is greater than a preset humidity value includes:

[0020] The current water temperature in the washing tub is detected, and a preset humidity value corresponding to the current water temperature is determined. Then, it is determined whether the difference in humidity is greater than the preset humidity value corresponding to the current temperature.

[0021] The detection results are made more accurate by comparing the difference in humidity with the preset temperature difference corresponding to the current temperature.

[0022] As a preferred embodiment of the control method for the aforementioned washing machine, the washing machine stores a comparison table of temperature and preset humidity differences, and compares the humidity change difference with the preset temperature difference corresponding to the current temperature in the comparison table.

[0023] The washing machine stores a table comparing the temperature with a preset temperature. By comparing the humidity change with the preset temperature difference corresponding to the current temperature in the table, the door lock status is detected under different temperature conditions inside the washing tub, making the control method more convenient and faster.

[0024] The present invention also provides a washing machine, which is controlled by the above-described washing machine control method, wherein the washing tub of the washing machine is provided with a humidity detection device and a water temperature detection device.

[0025] The washing machine is controlled by the above-mentioned control method, which can prevent users from being scalded when the door lock fails and the door is opened.

[0026] As a preferred embodiment of the aforementioned washing machine, the humidity detection device is a humidity sensor.

[0027] The humidity detection device is a humidity sensor, which has a simple structure and is convenient for detecting the humidity inside the washing tub.

[0028] The beneficial effects of this invention are:

[0029] The washing machine control method proposed in this invention detects the humidity inside the washing tub during the heating and washing process, calculates the humidity change difference within a preset time, and determines whether the humidity change difference is greater than the preset humidity value. If so, it determines that the washing machine door lock is invalid and the door is opened. To prevent users from being scalded by hot water, it detects the water temperature inside the washing tub and determines whether the water temperature inside the washing tub is greater than the preset temperature. If so, it introduces water into the washing tub to lower the temperature inside the washing tub, thus avoiding the risk of users directly contacting hot water during the washing process due to door lock failure. This enhances user satisfaction and improves product reputation.

[0030] The washing machine proposed in this invention, controlled by the above-described control method, can prevent users from being scalded when the door lock fails and the door is opened. Attached Figure Description

[0031] Figure 1 This is a flowchart of the control method for a washing machine provided in Embodiment 1 of the present invention;

[0032] Figure 2 This is a flowchart of the control method for a washing machine provided in Embodiment 2 of the present invention. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0037] Example 1:

[0038] During the washing process, the washing machine heats the water in the tub to sterilize the clothes. The door is locked during the wash cycle to prevent the user from contacting the hot water and thus avoiding scalding. However, if the lock fails, the door can still be opened by the user. Opening the door during the washing and heating process poses a risk of scalding. To avoid scalding, this embodiment provides a washing machine control method, including the following steps:

[0039] S11. During the heating and washing process, detect the humidity inside the washing tub and calculate the humidity change difference within a preset time.

[0040] S12. Determine whether the difference in humidity change is greater than the preset humidity value.

[0041] S13. If so, it is determined that the door lock of the washing machine is invalid and the door is open.

[0042] S14. Detect the water temperature inside the washing tub and determine whether the water temperature inside the washing tub is higher than the preset temperature.

[0043] S15. If so, add water to the washing tub.

[0044] The control method of this washing machine detects the humidity inside the washing tub during the heating and washing process, calculates the difference in humidity change over a preset time, and determines whether the difference in humidity change is greater than the preset humidity value. If so, it determines that the washing machine door lock is invalid and the door is opened. To prevent users from being scalded by hot water, it detects the water temperature inside the washing tub and determines whether the water temperature inside the washing tub is greater than the preset temperature. If so, it introduces water into the washing tub to lower the temperature inside the washing tub, avoiding the risk of users directly contacting hot water during the washing process due to door lock failure. This enhances user satisfaction and improves product reputation.

[0045] Example 2:

[0046] This embodiment provides a control method for a washing machine, which is an improvement upon Embodiment 1, such as... Figure 2 As shown, the control method of the washing machine includes the following steps:

[0047] S21. During the heating and washing process, the humidity inside the washing tub is detected, and the difference in humidity change over a preset time period is calculated.

[0048] The washing machine is equipped with a humidity detection device inside the washing tub. In this embodiment, the humidity detection device is a humidity sensor, which monitors the humidity inside the washing tub in real time. This method is low-cost and convenient. Specifically, the humidity sensor is placed inside the washing tub and around the door to detect the humidity at the opening of the washing tub.

[0049] Preferably, multiple humidity sensors can be set, and the average value of the humidity detected by multiple humidity sensors can be calculated and used as the humidity inside the washing tub. This avoids detection problems caused by the failure of a single humidity sensor.

[0050] S22. Determine whether the difference in humidity change is greater than the preset humidity value.

[0051] Since different water temperatures within the washing tub correspond to different preset humidity differences, it is necessary to compare the humidity change difference with the preset humidity difference corresponding to the current temperature. Specifically, the water temperature within the washing tub is detected, and the preset humidity value corresponding to the current water temperature is determined. Then, it is judged whether the humidity change value is greater than the preset humidity value, so as to make the detection structure more accurate.

[0052] Specifically, the washing machine stores a table comparing temperature and preset humidity differences. The difference in humidity is compared with the preset temperature difference corresponding to the current temperature in the table to detect the door lock status under different temperature conditions inside the washing tub, making the control method more convenient and efficient.

[0053] S23. If the change in humidity is greater than the preset humidity value, it is determined that the door lock of the washing machine is invalid and the door is open. The washing machine will then stop heating and issue an alarm. At the same time, the information that the door lock is invalid and the door is open will be transmitted to the mobile terminal connected to the washing machine to remind the user.

[0054] When the washing machine door is opened, a large amount of air enters the washing tub, causing the humidity inside the tub to decrease rapidly. By comparing the change in humidity over a preset time period with a preset humidity value, it can be determined whether the door has been opened.

[0055] When the washing machine sounds an alarm, it can provide a voice prompt, and the specific content of the prompt can be customized according to your needs.

[0056] The washing machine stops heating and sends a reminder when the water temperature in the tub cools to the preset low temperature, prompting the user to repair the door lock. Once the water temperature has cooled to the preset low temperature, the washing machine sends a reminder, indicating the water temperature has dropped to a level where there is no risk of scalding, and then reminds the user to repair the door lock.

[0057] S24. Detect the water temperature inside the washing tub and determine whether the water temperature inside the washing tub is higher than the preset temperature.

[0058] Since the heating status inside the washing tub is detected by a water temperature detection device, in this embodiment, the water temperature detection device is a temperature sensor installed inside the washing tub. The temperature sensor detects the water temperature inside the washing tub in real time and compares it with a preset temperature. If the water temperature is greater than the preset temperature, it means that the water temperature at this time poses a risk of scalding the user; if the water temperature is less than or equal to the preset temperature, it means that the water heating temperature at this time is not sufficient to scald the user.

[0059] S25. If the water temperature in the washing tub is higher than the preset temperature, water will be added to the washing tub.

[0060] When the water temperature is higher than the preset temperature, water is added to the washing tub to cool it down and prevent scalding. When the water temperature in the washing tub is lower than or equal to the preset temperature, there is no risk of scalding, and cooling the water in the tub is not necessary.

[0061] S26. When the water level in the washing tub reaches the preset level and / or the water temperature in the washing tub is less than or equal to the preset temperature, the washing machine stops filling with water.

[0062] When the water level in the washing tub reaches the preset level and / or the water temperature in the washing tub is less than or equal to the preset temperature, there is no risk of scalding to the user, and the washing machine can stop filling with water.

[0063] When the water level in the washing tub reaches the preset level, the incoming water will cool the hot water in the washing tub; or, by detecting the water temperature in the washing tub, if the water temperature in the washing tub is less than or equal to the preset temperature, there is no risk of scalding. As long as at least one condition is met, the washing machine will stop filling with water.

[0064] S27. The washing machine prompts the user whether to perform a spin cycle.

[0065] S28. If the washing machine receives information from the user that the user has selected to spin-dry, then spin-dry until the washing cycle ends.

[0066] After the washing machine stops filling with water, it prompts the user whether to spin-dry the clothes. If the user chooses to spin-dry, the washing machine will spin-dry the clothes to ensure the washing is complete.

[0067] This invention also provides a washing machine controlled by the aforementioned washing machine control method. The washing machine's tub is equipped with a humidity detection device and a water temperature detection device. This washing machine, controlled by the aforementioned method, can prevent scalding of the user when the door is opened due to a lock malfunction.

[0068] Optionally, the humidity detection device is a humidity sensor, which has a simple structure and is convenient for detecting the humidity inside the washing tub. Preferably, multiple humidity sensors can be set, and the average value of the humidity detected by multiple humidity sensors can be calculated and used as the detected humidity inside the washing tub. This avoids detection problems caused by the failure of a single humidity sensor.

[0069] Optionally, the water temperature detection device is a temperature sensor used to detect the water temperature inside the washing tub. Preferably, multiple temperature sensors can be set, and the average value of the temperatures detected by multiple temperature sensors can be used as the detected water temperature. This prevents situations where a single temperature sensor malfunctions and cannot detect the temperature.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A control method for a washing machine, characterized in that, Includes the following steps: During the heating and washing process, the humidity inside the washing tub is detected, and the difference in humidity change over a preset time period is calculated to determine whether the difference in humidity change is greater than the preset humidity value. If so, it is determined that the washing machine door lock is faulty and the door is open; When the door lock fails and the door is opened, the water temperature inside the washing tub is detected to determine whether the water temperature inside the washing tub is greater than the preset temperature; if so, water is added to the washing tub.

2. The control method for a washing machine according to claim 1, characterized in that, If the door lock is detected to be faulty and the door is opened, the washing machine will stop heating and issue an alarm.

3. The control method for a washing machine according to claim 2, characterized in that, At the same time as the washing machine issues an alarm, it transmits information about the door lock being disabled and the door being open to a mobile terminal that is connected to the washing machine.

4. The control method for a washing machine according to claim 3, characterized in that, When the washing machine stops heating and the water temperature in the washing tub cools down to a preset low temperature, the washing machine sends a reminder to the user to repair the door lock.

5. The control method for a washing machine according to any one of claims 1-4, characterized in that, The washing machine stops filling with water when the water level in the washing tub reaches the preset level and / or the water temperature in the washing tub is less than or equal to the preset temperature.

6. The control method for a washing machine according to claim 5, characterized in that, After the washing machine stops filling with water, it prompts the user whether to perform a spin cycle; if the washing machine receives the user's selection to perform a spin cycle, it then performs the spin cycle.

7. The control method for a washing machine according to any one of claims 1-4, characterized in that, The step of determining whether the difference in humidity change is greater than a preset humidity value includes: The current water temperature in the washing tub is detected, and a preset humidity value corresponding to the current water temperature is determined. Then, it is determined whether the difference in humidity is greater than the preset humidity value corresponding to the current temperature.

8. The control method for a washing machine according to claim 7, characterized in that, The washing machine stores a table comparing temperature and preset humidity differences, and compares the humidity change difference with the preset temperature difference corresponding to the current temperature in the table.

9. A washing machine, characterized in that, The washing machine is controlled by the control method of any one of claims 1-8, wherein the washing tub of the washing machine is provided with a humidity detection device and a water temperature detection device.

10. The control method for a washing machine according to claim 9, characterized in that, The humidity detection device is a humidity sensor.

Images