A control method for washing equipment

Abstract

This invention provides a control method for a washing device. The control method includes acquiring the input voltage of the washing device, obtaining the motor start-stop ratio of the washing device corresponding to the input voltage, and obtaining the motor start-stop ratio corresponding to the input voltage. Different input voltages correspond to different motor start-stop ratios, thereby achieving the adjustment of water flow intensity and improving the user experience.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, and more specifically, relates to a control method for a washing machine. Background Technology

[0002] In existing technology, drum washing machines generally include an inner drum for holding clothes, an inner drum support for supporting the inner drum, and a motor. The bottom of the inner drum has an inner drum shaft that extends in the left-right direction. The motor is mounted on the inner drum support, and the inner drum shaft passes through the inner drum support and is connected to the motor. The motor drives the inner drum shaft to rotate, thereby driving the inner drum to rotate and realizing the tumbling and washing of clothes by the inner drum. The inner drum support includes an outer drum for holding washing water. The inner drum is rotatably assembled inside the outer drum. The inner drum is provided with a dewatering hole so that water in the outer drum flows into the inner drum through the dewatering hole to soak the clothes in the inner drum. Water in the inner drum flows out to the outer drum through the dewatering hole. Water on the clothes in the inner drum is discharged to the outer drum through the dewatering hole when the inner drum rotates at high speed, thereby achieving the purpose of washing clothes.

[0003] Existing drum washing machines can adjust the water flow intensity inside the drum by adjusting the motor's rotation-stop ratio, so that the drum rotates for a certain period of time and then stops rotating for a certain period of time. However, current washing machines cannot obtain the motor's rotation-stop ratio corresponding to the input voltage to adjust the motor's rotation-stop ratio, and therefore cannot adjust the water flow intensity according to the input voltage. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a control method for a washing device. By using the input voltage of the washing device, the motor's start-stop ratio corresponding to the input voltage is obtained. Different input voltages correspond to different motor start-stop ratios, thereby achieving the purpose of adjusting the water flow intensity and improving the user experience.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] This invention provides a control method for a washing machine, which involves collecting the input voltage of the washing machine and obtaining the motor start-stop ratio of the washing machine corresponding to the input voltage.

[0007] Furthermore, the collected input voltage is compared with the set voltage. The motor's start-stop ratio is different when the input voltage is greater than the set voltage and when the input voltage is less than or equal to the set voltage.

[0008] Furthermore, the collected input voltage is compared with the first set voltage. If the input voltage is less than or equal to the first set voltage, then the motor's start-stop ratio is the first start-stop ratio.

[0009] Furthermore, the collected input voltage is compared with the second set voltage. If the input voltage is greater than the first set voltage and less than or equal to the second set voltage, then the motor's start-stop ratio is the second start-stop ratio, which is different from the first start-stop ratio.

[0010] Furthermore, if the input voltage is greater than the second set voltage, the motor's start-stop ratio is a third start-stop ratio, which is different from the first and second start-stop ratios.

[0011] Furthermore, the third turnaround ratio is greater than the second turnaround ratio, and the second turnaround ratio is greater than the first turnaround ratio.

[0012] Furthermore, the first set voltage is 220V, and the second set voltage is 240V;

[0013] If the input voltage is 220V, then the motor's start-stop ratio is A / T;

[0014] If the input voltage is greater than 220V and less than or equal to 240V, then the motor's start-stop ratio is B / (T+0.2);

[0015] If the input voltage is greater than 240V, the motor's start-stop ratio is C / (T+0.4), where A, B, and C are preset parameters, with A>B>C.

[0016] Furthermore, it determines whether the collected input voltage is greater than or equal to the minimum set voltage and less than or equal to the maximum set voltage. If so, the corresponding motor start-stop ratio is obtained based on the input voltage. If not, the washing equipment issues an alarm signal to remind the user that the input voltage of the washing equipment is too low or too high.

[0017] Furthermore, if the input voltage is less than or equal to the first set voltage and greater than or equal to the minimum set voltage, then the motor's start-stop ratio is the first start-stop ratio.

[0018] Furthermore, if the input voltage is greater than the second set voltage and less than or equal to the maximum set voltage, then the motor's start-stop ratio is the third start-stop ratio.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0020] 1. By obtaining the motor's start-stop ratio corresponding to the input voltage of the washing equipment, different input voltages correspond to different motor start-stop ratios, thereby adjusting the water flow intensity and improving the user experience.

[0021] 2. The washing equipment executes a washing program to perform washing. The washing program includes multiple washing stages. The washing equipment enters multiple washing stages in sequence. By changing the input voltage of the washing equipment in each washing stage, the motor is made to work according to the start-stop ratio corresponding to the input voltage.

[0022] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, as part of this invention, are provided to further illustrate the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation thereof. Clearly, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0024] Figure 1 A flowchart of a control method for a washing device provided in an embodiment of the present invention.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] To make the objectives, 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 with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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 limiting this invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] This invention provides a control method for a washing machine, which involves collecting the input voltage of the washing machine and obtaining the motor start-stop ratio of the washing machine corresponding to the input voltage.

[0030] In embodiments of the present invention, the motor start-stop ratio corresponding to the input voltage of the washing device is obtained. Different input voltages correspond to different motor start-stop ratios, thereby achieving adjustment of water flow intensity and improving user experience.

[0031] The control method for the washing equipment is applied to a washing equipment, which may be a drum washing machine. The drum washing machine includes a motor and an inner drum. The motor shaft of the motor is connected to the inner drum and is used to drive the inner drum to rotate.

[0032] Furthermore, the inner drum is a water-holding drum, or the drum washing machine also includes an outer drum, which is a water-holding drum;

[0033] The washing machine's controller can collect the input voltage of the detergent and match the rotation ratio of the motor to the input voltage based on the input voltage value. The controller adjusts the motor's rotation ratio according to the input voltage.

[0034] The specific adjustment of the water flow intensity inside the inner drum is as follows:

[0035] For example, by reducing the motor-to-stop ratio, that is, reducing the time the motor runs and increasing the time the motor stops, the water flow intensity in the inner drum can be reduced, thereby reducing the tangling of clothes. The reduction of the motor-to-stop ratio can be achieved by reducing the input voltage of the washing machine.

[0036] By increasing the motor rotation-to-stop ratio, that is, increasing the time the motor rotates and decreasing the time the motor stops, the water flow intensity in the inner drum is increased, which allows the detergent in the washing water to dissolve fully and increases the mixing strength between the detergent and the clothes.

[0037] It should be noted that different input voltages correspond to different motor start-stop ratios, which can be applied to different washing stages of the washing machine. Different washing stages are adapted to different start-stop ratios to avoid energy waste caused by motor running time.

[0038] The washing equipment executes a washing program to perform washing. The washing program includes multiple washing stages. The washing equipment enters multiple washing stages in sequence. By changing the input voltage of the washing equipment in each washing stage, the motor is made to work according to the start-stop ratio corresponding to the input voltage.

[0039] An adjustment device is installed at the input end of a regular motor to change the input voltage of the washing machine motor, thereby adapting to different input voltages for different washing stages and thus adapting to different start-stop ratios.

[0040] In addition, since different countries have different standard voltages, when the standard voltage is too high, the water flow intensity is relatively strong, which can cause clothes to tangle and reduce the user experience. Therefore, when the standard voltage changes, the tangling of clothes can be reduced by changing the motor's start-stop ratio. For example, when the standard motor voltage increases, the tangling of clothes can be reduced by decreasing the motor's start-stop ratio.

[0041] In an embodiment of the present invention, the collected input voltage is compared with the set voltage. The motor's start-stop ratio is different when the input voltage is greater than the set voltage and when the input voltage is less than or equal to the set voltage.

[0042] In embodiments of the present invention, a preset voltage is provided in the washing equipment. When the collected input voltage is greater than the preset voltage, the collected input voltage corresponds to a certain operating-to-stop ratio. When the collected input voltage is less than or equal to the preset voltage, the collected input voltage corresponds to a different operating-to-stop ratio. The two operating-to-stop ratios are different, so that different voltages correspond to different operating-to-stop ratios.

[0043] Furthermore, before comparing the collected input voltage with the set voltage, it can be determined whether the collected input voltage is greater than or equal to the minimum set voltage and less than or equal to the maximum set voltage. If so, the corresponding motor start-stop ratio is obtained based on the input voltage. If not, the washing equipment issues an alarm signal to remind the user that the input voltage of the washing equipment is too low or too high.

[0044] When a washing machine is running, if the input voltage is too low, the inner drum will not rotate, meaning the washing water strength inside the drum is very weak. This prevents the clothes from being properly agitated, resulting in insufficient mixing between the clothes and detergent and reduced washing effectiveness. Alternatively, when water is added to the inner drum, the limited amount of detergent inside may not be agitated, preventing the detergent from mixing fully with the washing water.

[0045] Therefore, when the collected input voltage is less than the minimum set voltage, the alarm on the washing machine will issue an alarm signal to inform the user that the input voltage of the washing machine is too low, and the washing machine will be paused. Alternatively, the user can manually adjust the adjustment device on the input terminal of the motor to change the input voltage of the washing machine.

[0046] If the input voltage to the washing machine is too high during operation, the motor may burn out.

[0047] Therefore, when the collected input voltage is greater than the maximum set voltage, the alarm on the washing machine will issue an alarm signal to inform the user that the input voltage of the washing machine is too low, and to stop the washing machine from washing, or to manually adjust the adjustment device on the input terminal of the motor to change the input voltage of the washing machine.

[0048] By preset the minimum and maximum voltage settings within the washing equipment, the washing machine can operate normally while improving the washing effect on clothes.

[0049] Specifically, the voltage setting has two voltage values: one is 220V and the other is 240V.

[0050] If the input voltage is 220V, then the motor's start-stop ratio is A / T;

[0051] If the input voltage is greater than 220V and less than or equal to 240V, then the motor's start-stop ratio is B / (T+0.2);

[0052] If the input voltage is greater than 240V, the motor's start-stop ratio is C / (T+0.4), where A, B, and C are preset parameters, with A>B>C.

[0053] In an embodiment of the present invention, the collected input voltage is compared with a first set voltage. If the input voltage is less than or equal to the first set voltage, the motor's start-stop ratio is the first start-stop ratio.

[0054] In an embodiment of the present invention, the collected input voltage is compared with a first set voltage and a minimum set motor voltage. If the input voltage is less than or equal to the first set voltage and greater than or equal to the minimum set voltage, the motor's start-stop ratio is the first start-stop ratio. If the input voltage is less than the minimum set voltage, the washing machine issues an alarm signal. If the input voltage is greater than the first set voltage, the motor's start-stop ratio is not the first start-stop ratio.

[0055] For example, if the first set voltage is 220V, and the input voltage is less than the first set voltage of 220V, then the motor's start-stop ratio is the first start-stop ratio, which is A / T, where A and T are preset parameters.

[0056] Specifically, the multiple washing stages include a main washing stage, during which the washing equipment enters the main washing stage to wash the clothes, and during the main washing stage, the motor is controlled to work according to the start-stop ratio of A / T.

[0057] Since a larger water flow is required to wash clothes during the main washing stage, the input voltage can be adjusted to the first set voltage of 220V, so that the motor operates with an A / T ratio, increasing the motor's running time while keeping the motor's stopping time unchanged, thereby increasing the water flow intensity.

[0058] In an embodiment of the present invention, the collected input voltage is compared with a second set voltage. If the input voltage is greater than the first set voltage and less than or equal to the second set voltage, the motor's start-stop ratio is a second start-stop ratio that is different from the first start-stop ratio.

[0059] In an embodiment of the present invention, the collected input voltage is compared with a second set voltage. If the input voltage is greater than the first set voltage but less than the second set voltage, the motor's start-stop ratio is the second start-stop ratio. If the input voltage is greater than the second set voltage, the motor's start-stop ratio is not the second start-stop ratio.

[0060] For example, if the first set voltage is 220V and the second set voltage is 240V, and the input voltage is greater than the first set voltage 220V and less than or equal to the second set voltage 240V, then the motor's start-stop ratio is the second start-stop ratio, which is B / (T+0.2), where B is a preset parameter and A>B.

[0061] Specifically, the washing process includes multiple washing stages, including a rinsing stage. The washing equipment enters the rinsing stage to rinse the clothes, and during the rinsing stage, the motor is controlled to operate at a start-stop ratio of B / (T+0.2).

[0062] Since the rinsing stage requires a lower water flow intensity than the main washing stage, the input voltage can be adjusted to be greater than the first set voltage of 220V and less than or equal to the second set voltage of 240V. This allows the motor to operate with a start-stop ratio of B / (T+0.2), reducing the motor's running time and increasing its stopping time, thus achieving a water flow intensity lower than that of the washing stage.

[0063] In an embodiment of the present invention, if the input voltage is greater than the second set voltage, the motor's stop-start ratio is a third stop-start ratio that is different from the first stop-start ratio and the second stop-start ratio.

[0064] In an embodiment of the present invention, if the input voltage is greater than the second set voltage and less than or equal to the maximum set voltage, the motor's start-stop ratio is the third start-stop ratio; if the input voltage is greater than the maximum set voltage, the washing machine issues an alarm signal.

[0065] For example, if the second set voltage is 240V, and the input voltage is greater than the second set voltage of 240V but less than or equal to the maximum set voltage, then the motor's start-stop ratio is the third start-stop ratio, which is C / (T+0.4), where C is a preset parameter and B>C.

[0066] Specifically, the washing process includes multiple washing stages, including a water intake stage. During the water intake stage, the water tank contains only detergent and washing water. The washing equipment enters the water intake stage to allow water to enter the washing equipment. During the water intake stage, the motor is controlled to work at a start-stop ratio of C / (T+0.4) until the water level in the washing equipment reaches the preset water level.

[0067] Since a large water flow intensity is not required to wash clothes during the water intake stage, the input voltage can be adjusted to be greater than the second set voltage of 240V, so that the motor operates with a start-stop ratio of C / (T+0.4), further reducing the motor's rotation time and further increasing the motor's stop time, thereby obtaining a water flow intensity that is smaller than that of the rinsing stage.

[0068] In embodiments of the present invention, the third turn-to-stop ratio is greater than the second turn-to-stop ratio, and the second turn-to-stop ratio is greater than the first turn-to-stop ratio.

[0069] In the embodiments of the present invention, the input voltage corresponding to the first rotation-to-stop ratio is less than the input voltage corresponding to the second rotation-to-stop ratio, and the input voltage corresponding to the second rotation-to-stop ratio is less than the input voltage corresponding to the third rotation-to-stop ratio. The larger the input voltage, the greater the torque of the motor can be considered. Therefore, in order to match the larger torque of the motor, the rotation time of the motor can be reduced, thereby reducing the rotation-to-stop ratio of the motor. The rotation time of the motor is the main factor for adjusting the water flow intensity.

[0070] like Figure 1 As shown, the specific steps of the control method for the washing equipment of the present invention are as follows:

[0071] S1. Collect the input voltage of the washing equipment and execute step S2;

[0072] S2. Determine whether the input voltage is greater than or equal to the minimum set voltage and less than or equal to the maximum set voltage. If yes, proceed to step S3; otherwise, proceed to step S6 or S7.

[0073] S3. Determine whether the input voltage is less than or equal to the first set voltage. If yes, the motor's start-stop ratio is the first start-stop ratio. If no, proceed to step S4.

[0074] S4. Determine whether the input voltage is greater than the first set voltage and less than or equal to the second set voltage. If yes, the motor's stop-start ratio is the second stop-start ratio, which is different from the first stop-start ratio. If no, proceed to step S5.

[0075] S5. If the input voltage is greater than the second set voltage, the motor's start-stop ratio is the third start-stop ratio.

[0076] S6. If the input voltage is less than the minimum set voltage, the washing equipment will issue an alarm signal to remind the user that the input voltage of the washing equipment is too low.

[0077] S7. If the input voltage is greater than the maximum set voltage, the washing equipment will issue an alarm signal to remind the user that the input voltage of the washing equipment is too high.

[0078] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A control method for a washing machine, characterized in that, Collect the input voltage of the washing equipment, and obtain the motor start-stop ratio of the washing equipment corresponding to the input voltage; The collected input voltage is compared with the set voltage. If the collected input voltage is less than or equal to the first set voltage, then the motor's start-stop ratio is the first start-stop ratio; If the collected input voltage is greater than the first set voltage and less than or equal to the second set voltage, then the motor's start-stop ratio is the second start-stop ratio. If the input voltage collected is greater than the second set voltage, the motor's start-stop ratio is the third start-stop ratio; The third turnaround ratio is greater than the second turnaround ratio, and the second turnaround ratio is greater than the first turnaround ratio.

2. The control method for the washing equipment according to claim 1, characterized in that, The first set voltage is 220V, and the second set voltage is 240V.

3. The control method for the washing equipment according to claim 2, characterized in that, If the input voltage is 220V, then the motor's start-stop ratio is A / T.

4. The control method for the washing equipment according to claim 2, characterized in that, If the input voltage is greater than 220V and less than or equal to 240V, then the motor's start-stop ratio is B / (T+0.2).

5. The control method for the washing equipment according to claim 2, characterized in that, If the input voltage is greater than 240 V, the motor's start-stop ratio is C / (T+0.4), where A, B, and C are preset parameters, with A>B>C.

6. The control method for the washing equipment according to any one of claims 1-5, characterized in that, The system determines whether the collected input voltage is greater than or equal to the minimum set voltage and less than or equal to the maximum set voltage. If so, it obtains the corresponding motor start-stop ratio based on the input voltage. If not, the washing equipment issues an alarm signal to remind the user that the input voltage of the washing equipment is too low or too high.

7. The control method for the washing equipment according to claim 6, characterized in that, If the input voltage is less than or equal to the first set voltage and greater than or equal to the minimum set voltage, then the motor's start-stop ratio is the first start-stop ratio.

8. The control method for the washing equipment according to claim 6, characterized in that, If the input voltage is greater than the second set voltage and less than or equal to the maximum set voltage, then the motor's start-stop ratio is the third start-stop ratio.

9. The control method for the washing equipment according to any one of claims 1 to 5, characterized in that, Washing equipment includes a main washing stage; During the main washing stage, the input voltage is adjusted to the first set voltage of 220V, so that the motor works with a start-stop ratio of A / T, increasing the motor's running time while keeping the motor's stopping time unchanged, thereby increasing the intensity of the water flow.

10. The control method for the washing equipment according to claim 9, characterized in that, Washing equipment includes a rinsing stage; During the rinsing stage, the input voltage is adjusted to be greater than the first set voltage of 220V and less than or equal to the second set voltage of 240V, so that the motor operates with a start-stop ratio of B / (T+0.2), reducing the motor's rotation time and increasing the motor's stop time, resulting in a water flow intensity that is lower than that of the washing stage.

11. The control method for the washing equipment according to claim 10, characterized in that, Washing equipment includes a water intake stage; During the water intake stage, the input voltage is adjusted to be greater than the second set voltage of 240V, so that the motor operates with a start-stop ratio of C / (T+0.4), further reducing the motor's rotation time and further increasing the motor's stop time, resulting in a water flow intensity that is less than that during the rinsing stage.

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