Control method of a dishwasher and dishwasher

Abstract

The application discloses a control method of a dishwasher and the dishwasher. The actual amount P of a rinsing agent is detected, and when the actual amount P of the rinsing agent is greater than or equal to a set amount P0, the working mode of the dishwasher is adjusted from a non-energy-saving mode to an energy-saving mode to perform rinsing and drying treatment on tableware in the dishwasher. By comparing the actual amount of the rinsing agent with the set amount, when the actual amount of the rinsing agent is greater than or equal to the set amount, the working mode of the dishwasher is adjusted to the energy-saving mode, so that the drying effect on the tableware is improved and energy is saved. The application further provides a dishwasher adopting the control method of the dishwasher.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a control method for a dishwasher and the dishwasher. Background Art

[0002] In recent years, with the improvement of living standards, dishwashers have become popular in people's daily lives and have gradually become an indispensable appliance in the kitchen. However, as the variety and quantity of dishwashers on the market increase, consumers' requirements for the quality of dishwashers are also getting higher and higher.

[0003] In order to improve the drying effect and reduce water marks, existing dishwashers will increase the rinsing temperature and add rinse agent in the last rinse stage. The non-surfactant in the rinse agent reduces the surface tension of water, preventing water from gathering into droplets on the surface of tableware, thereby increasing the evaporation area of ​​water and reducing the water remaining on the surface of tableware or the internal surface of the machine, thereby enhancing the drying effect of the dishwasher.

[0004] However, as a dishwasher consumable, rinse agent needs to be manually added to the dishwasher from time to time, which may lead to the problem of excessive amount of rinse agent added, resulting in the mismatch between the amount of rinse agent added and the working mode of the dishwasher. For example, the amount of rinse agent added is relatively large, but the working mode of the dishwasher is to heat the rinse water at high temperature. When the amount of rinse agent added is relatively large, the temperature of the rinse water does not need to be too high. If the temperature of the rinse water is too high, it will lead to a waste of resources. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a control method and a dishwasher, so as to detect whether the actual amount of rinse agent added reaches the set amount. When the detected amount of rinse agent added is greater than or equal to the set amount, more rinse agent can effectively remove stains on tableware, reduce the residual rinse water on the tableware, improve the drying effect of the tableware, and reduce the requirements for rinsing and drying conditions, thereby saving energy.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides a control method for a dishwasher, which detects the actual amount P of rinse agent added. When the actual amount P of rinse agent added is greater than or equal to a set amount P0, the working mode of the dishwasher is adjusted from a non-energy-saving mode to an energy-saving mode to rinse and dry the tableware in the dishwasher.

[0008] Furthermore, the rinse agent is added in N times, and the single amount of rinse agent added is set to p. Before at least one of the second to Nth times of adding the rinse agent, the actual amount of rinse agent added P is detected. If P is less than P0, and the difference between P and P0 is less than p, the single amount of rinse agent added is reduced when the rinse agent is added this time, so that the actual amount of rinse agent added reaches the set amount.

[0009] Furthermore, if P is less than P0, and the difference between P and P0 is less than p, when adding the rinse agent this time, continue to add the set single amount p, and then adjust the working mode of the dishwasher from non-energy-saving mode to energy-saving mode.

[0010] Furthermore, if P is less than P0, and the difference between P and P0 is less than p, the operating mode of the dishwasher is directly adjusted from the non-energy-saving mode to the energy-saving mode.

[0011] Furthermore, if P is less than P0, and the difference between P and P0 is greater than p, the operation mode of the dishwasher is always in the non-energy-saving mode.

[0012] Furthermore, the temperature of the rinsing water in the dishwasher in non-energy-saving mode is higher than the temperature of the rinsing water in the dishwasher in energy-saving mode; the drying time of the dishes by the dishwasher in non-energy-saving mode is longer than the drying time of the dishes by the dishwasher in energy-saving mode; or the hardness of the rinsing water in non-energy-saving mode is less than the hardness of the rinsing water in energy-saving mode.

[0013] Furthermore, in the non-energy-saving mode, when the temperature of the rinsing water in the dishwasher reaches the second preset temperature, heating is stopped. When the temperature of the rinsing water in the dishwasher drops to the first preset temperature, the temperature of the rinsing water continues to be heated to the second preset temperature.

[0014] Furthermore, in the non-energy-saving mode, the rinse water is softened by the water softener and then enters the dishwasher.

[0015] Furthermore, initially, a set total amount of rinse agent is added to the rinse agent tank of the dishwasher according to the number of dishes in the dishwasher, and the remaining amount of rinse agent in the rinse agent tank is detected, and the actual amount of rinse agent added is equal to the difference between the set total amount and the remaining amount;

[0016] Preferably, a liquid level sensor is used to detect the remaining amount of the rinse agent.

[0017] The present invention also provides a dishwasher, and a control method for the dishwasher provided by the above technical solution.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0019] 1. By real-time detection of the actual amount of rinse agent added, when the detected actual amount of rinse agent added is greater than or equal to the set amount, the working mode of the dishwasher is adjusted from non-energy-saving mode to energy-saving mode. After the actual amount of rinse agent added reaches the set amount, more rinse agent can effectively remove stains on tableware, reduce the residual rinse water on the tableware, and improve the drying effect of the tableware. In addition, after the amount of rinse agent added reaches the set amount, the requirements for rinsing and drying conditions can be reduced, saving energy.

[0020] 2. Add the rinse agent in N times, and set the single amount of rinse agent to p. Before at least one of the second to Nth times of adding the rinse agent, detect the actual amount of rinse agent P. If P is less than P0, and the difference between P and P0 is less than p, similarly, adjust the working mode of the dishwasher from non-energy-saving mode to energy-saving mode.

[0021] 3. The temperature of the rinse water in the dishwasher in non-energy-saving mode is higher than that in energy-saving mode; the dishwasher takes longer to dry dishes in non-energy-saving mode than in energy-saving mode; or the hardness of the rinse water in non-energy-saving mode is lower than that in energy-saving mode.

[0022] 4. In non-energy-saving mode, the rinse water passes through the water softener for softening before entering the dishwasher.

[0023] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, as part of this disclosure, are intended to provide a further understanding of the disclosure. The exemplary embodiments of the disclosure and their descriptions are intended to explain the disclosure and do not constitute undue limitations thereon. Obviously, the drawings described below are merely examples, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0025] Figure 1 4 is a flow chart of a method for controlling a dishwasher provided by an embodiment of the present invention.

[0026] 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 DESCRIPTION

[0027] 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.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] The present invention provides a control method for a dishwasher, which detects the actual amount P of rinse agent added. When the actual amount P of rinse agent added is greater than or equal to a set amount P0, the working mode of the dishwasher is adjusted from a non-energy-saving mode to an energy-saving mode to rinse and dry the tableware in the dishwasher.

[0031] In an embodiment of the present invention, the actual amount of rinse agent added is detected in real time. When the detected actual amount of rinse agent added is greater than or equal to the set amount, the operating mode of the dishwasher is adjusted from a non-energy-saving mode to an energy-saving mode. After the actual amount of rinse agent added reaches the set amount, more rinse agent can effectively remove stains on tableware, reduce the residual rinse water on the tableware, and improve the drying effect of the tableware. Moreover, after the amount of rinse agent added reaches the set amount, the requirements for rinsing conditions and drying conditions can be lowered, saving energy.

[0032] The dishwasher includes the following dishwasher drying control device, the drying control device including a control unit, a rinse agent detection unit, a heating unit, a water softener, and a temperature detection unit, wherein the rinse agent detection unit, the heating unit, the water softener, and the temperature detection unit are electrically connected to the control unit, and the control unit controls the operating mode of the dishwasher;

[0033] Preferably, the control unit is wirelessly connected to the rinse agent detection unit, the heating unit, and the temperature detection unit. The rinse agent detection unit and the temperature detection unit are provided with a first wireless transmitting module, and the control unit is provided with a first wireless receiving module. The first wireless transmitting module is connected to the first wireless receiving module to achieve wireless connection between the control unit and the rinse agent detection unit and the temperature detection unit.

[0034] The heating unit is provided with a second wireless receiving module, and the control unit is also provided with a second wireless transmitting module. The second wireless transmitting module is connected to the second wireless receiving module to realize wireless connection between the control unit and the heating unit.

[0035] In an embodiment of the present invention, the rinse agent is added in N times, and the single amount of rinse agent added is set to p. Before at least one of the second to Nth times of adding the rinse agent, the actual amount of rinse agent added P is detected. If P is less than P0, and the difference between P and P0 is less than p, the single amount of rinse agent added is reduced when the rinse agent is added this time, so that the actual amount of rinse agent added reaches the set amount.

[0036] In an embodiment of the present invention, when the actual amount of rinse agent dispensed is greater than or equal to the set amount, the control unit will definitely adjust the operating mode of the dishwasher from the non-energy-saving mode to the energy-saving mode. However, when the actual amount of rinse agent dispensed is less than the set amount, and the difference between the set amount and the actual amount of rinse agent dispensed is less than the set single amount, where the single amount refers to the amount of detergent dispensed each time N times, and the set amount refers to the total amount of detergent dispensed in N times, in order to reduce the complexity of the adjustment, the operating mode of the dishwasher in this case is adjusted to the energy-saving mode.

[0037] In this embodiment, the measure taken to adjust the working mode of the dishwasher to the energy-saving mode is to reduce the single dosage of the rinse agent so that the actual dosage of the rinse agent is equal to the set dosage of the rinse agent, thereby adjusting the working mode of the dishwasher from the non-energy-saving mode to the energy-saving mode to rinse and dry the tableware in the dishwasher.

[0038] In an embodiment of the present invention, if P is less than P0, and the difference between P and P0 is less than p, when adding the rinse agent this time, the set single amount p is continued to be added, and then the working mode of the dishwasher is adjusted from the non-energy-saving mode to the energy-saving mode.

[0039] In an embodiment of the present invention, the actual amount of rinse agent added is less than the set amount, and the difference between the set amount and the actual amount of rinse agent added is less than the set single amount. In this embodiment, the measure taken to adjust the working mode of the dishwasher to the energy-saving mode is to continue to add the set single amount, so that the actual amount of rinse agent added is greater than the set amount of rinse agent, thereby satisfying the adjustment of the working mode of the dishwasher from the non-energy-saving mode to the energy-saving mode to rinse and dry the tableware in the dishwasher.

[0040] In an embodiment of the present invention, if P is less than P0, and the difference between P and P0 is less than p, the operating mode of the dishwasher is directly adjusted from the non-energy-saving mode to the energy-saving mode.

[0041] In an embodiment of the present invention, the actual amount of rinse agent added is less than the set amount, and the difference between the set amount and the actual amount of rinse agent added is less than the set single amount. In this embodiment, the working mode of the dishwasher is adjusted to the energy-saving mode. This is because the actual amount of rinse agent added is slightly different from the set amount of rinse agent added, so the rinse agent no longer needs to be added. The working mode of the dishwasher is directly adjusted from the non-energy-saving mode to the energy-saving mode to rinse and dry the tableware in the dishwasher.

[0042] In the embodiment of the present invention, if P is less than P0, and the difference between P and P0 is greater than p, the operation mode of the dishwasher is always in the non-energy-saving mode.

[0043] In an embodiment of the present invention, the actual amount of rinse agent added is less than the set amount, but the difference between the set amount and the actual amount of rinse agent added is greater than the set single amount, that is, there is a large difference between the actual amount of rinse agent added and the set amount. Therefore, the working mode of the dishwasher needs to be in non-energy-saving mode at all times to ensure the dishwasher's drying effect on tableware.

[0044] like Figure 1 As shown, the control method of the dishwasher is as follows:

[0045] S1, detecting the actual amount of rinse agent P;

[0046] S2. Compare the actual delivery amount P with the set delivery amount P0 to determine whether P is greater than or equal to P0. If so, execute step S3; if not, execute step S7;

[0047] S3, the working mode of the dishwasher is energy-saving mode;

[0048] S4. Determine whether the difference between P and P0 is less than p. If so, execute step S5, S6 or S3; if not, execute step S7;

[0049] S5. When adding the rinse agent this time, reduce the single amount of rinse agent added, and then execute step S3;

[0050] S6. When adding the rinse agent this time, continue to add the set single amount p, and then execute step S3;

[0051] S7. The dishwasher is in non-energy-saving mode.

[0052] In an embodiment of the present invention, the temperature of the rinsing water in the dishwasher in non-energy-saving mode is higher than the temperature of the rinsing water in the dishwasher in energy-saving mode; the drying time of the tableware by the dishwasher in non-energy-saving mode is longer than the drying time of the tableware by the dishwasher in energy-saving mode; or the hardness of the rinsing water in non-energy-saving mode is less than the hardness of the rinsing water in energy-saving mode.

[0053] In an embodiment of the present invention, with respect to the temperature of the rinse water in the dishwasher, the smaller the actual amount of rinse agent added, the higher the temperature of the rinse water. Therefore, the temperature of the rinse water in the dishwasher in energy-saving mode is 10-20°C lower than the temperature of the rinse water in the dishwasher in non-energy-saving mode.

[0054] The dishwasher is provided with a heating unit, which is used to heat the rinsing water in the dishwasher. In the non-energy-saving working mode, the heating unit heats the rinsing water in the dishwasher, that is, the rinsing temperature is increased on the basis of the original rinsing program. In this embodiment, a certain temperature is increased on the basis of the original maximum rinsing temperature T in the final rinsing stage, and the heating is stopped when the temperature reaches the second preset temperature T2. Thereafter, a temperature detection unit is used, specifically, the temperature detection unit can be a temperature sensor, which is provided in the dishwasher to detect the temperature inside the dishwasher. The temperature detection unit feeds back the detected temperature to the control unit. When the temperature drops to the first preset temperature T1, the control unit controls the heating unit to continue heating until the temperature of the rinsing water in the dishwasher reaches the second preset temperature T2. This process is repeated to keep the temperature inside the dishwasher between the first preset temperature T1 and the second preset temperature T2 until the end of rinsing.

[0055] The control unit controls the heating unit so that the temperature of the rinse water in the dishwasher is maintained between T1 and T2;

[0056] As for the drying time of tableware, since the amount of rinse agent added in the non-energy-saving mode is relatively small, more water remains on the surface of the tableware, which is not conducive to drying the tableware. Therefore, the dishwasher takes a longer time to dry the tableware in the non-energy-saving mode. The longer the drying time, the better the drying effect.

[0057] In an embodiment of the present invention, in the non-energy-saving mode, the rinse water is softened by the water softener and then enters the dishwasher.

[0058] In an embodiment of the present invention, the hardness of the rinse water in the dishwasher in non-energy-saving mode is lower than that in energy-saving mode. In non-energy-saving mode, the rinse water passes through a water softener for softening before entering the dishwasher. However, the softener resin must be regenerated before the rinse water enters the softener. In other words, to compensate for the rinse agent's effect of reducing water marks, extremely soft water must be used to rinse dishes in the dishwasher to avoid water marks. The water softening device of existing dishwashers is typically a water softener, which uses resin to filter tap water to soften the water.

[0059] Preferably, the method to achieve extremely soft water is to regenerate the resin before the final rinse to maximize the water softening capacity of the resin and reach the lowest hardness that the water softener can soften, thereby avoiding the formation of water marks to the greatest extent;

[0060] The resin regeneration method includes soaking the resin in pressurized salt water V1 after the penultimate rinse has been completed; flushing the resin with water V2 after the penultimate rinse has been completed, followed by drainage, and repeating this process several times until the resin regeneration process is complete, thereby achieving the best water softening capacity of the resin; and then introducing the cleaning water of the last rinse to achieve the goal of extremely soft water.

[0061] In an embodiment of the present invention, initially, a set total amount of rinse agent is added to the rinse agent tank of the dishwasher based on the number of dishes in the dishwasher, and the remaining amount of rinse agent in the rinse agent tank is detected. The actual amount of rinse agent added is equal to the difference between the set total amount and the remaining amount.

[0062] In an embodiment of the present invention, the actual amount of rinse agent added is obtained by detecting the remaining amount of rinse agent in the rinse agent tank; the rinse agent detection unit is used to detect the remaining amount of rinse agent in the rinse agent tank and feed back to the control unit;

[0063] Specifically, the rinse agent detection unit may be a liquid level sensor provided in the rinse agent tank. The liquid level sensor detects the remaining amount of rinse agent in the rinse agent tank and feeds back information on the remaining amount of rinse agent to the control unit. The control unit records the total amount of rinse agent added to the rinse agent tank, which is the set total amount of rinse agent added. The actual amount of rinse agent added is obtained by subtracting the set total amount of rinse agent added from the remaining amount.

[0064] In addition, the rinse agent detection unit can also be a liquid flow meter, which is arranged at the injection port of the rinse agent tank. The amount of rinse agent passing through the injection port is measured by the liquid flow meter to obtain the actual amount of rinse agent injected.

[0065] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A method for controlling a dishwasher, characterized in that: detecting an actual amount P of rinse agent added, and when the actual amount P of rinse agent added is greater than or equal to a set amount P0, adjusting the operating mode of the dishwasher from a non-energy-saving mode to an energy-saving mode to rinse and dry the dishes in the dishwasher; The rinse agent is added in N times, and the single dosage of the rinse agent is set to p. Before at least one of the second to Nth dosages of the rinse agent, the actual dosage P of the rinse agent is detected. If P is less than P0, and the difference between P and P0 is less than p, the single dosage of the rinse agent is reduced when the rinse agent is added this time, so that the actual dosage of the rinse agent reaches the set dosage.

2. The control method of the dishwasher according to claim 1, characterized in that: If P is less than P0, and the difference between P and P0 is less than p, when adding the rinse agent this time, continue to add the set single amount p, and then adjust the working mode of the dishwasher from non-energy-saving mode to energy-saving mode.

3. The control method of the dishwasher according to claim 1, characterized in that: If P is less than P0, and the difference between P and P0 is less than p, the working mode of the dishwasher is directly adjusted from the non-energy-saving mode to the energy-saving mode.

4. The control method of the dishwasher according to claim 1, characterized in that: If P is less than P0, and the difference between P and P0 is greater than p, the dishwasher operates in a non-energy-saving mode.

5. The control method of a dishwasher according to any one of claims 1 to 4, characterized in that: The temperature of the rinse water in the dishwasher in non-energy-saving mode is higher than that in the dishwasher in energy-saving mode; the drying time of the dishes in the dishwasher in non-energy-saving mode is longer than that in the dishwasher in energy-saving mode; Or the hardness of the rinsing water in the non-energy-saving mode is less than the hardness of the rinsing water in the energy-saving mode.

6. The control method of the dishwasher according to claim 5, characterized in that: In the non-energy-saving mode, when the temperature of the rinsing water in the dishwasher reaches the second preset temperature, heating is stopped. When the temperature of the rinsing water in the dishwasher drops to the first preset temperature, the temperature of the rinsing water continues to be heated to the second preset temperature.

7. The control method of the dishwasher according to claim 5, characterized in that: In non-energy-saving mode, the rinse water passes through the water softener for softening before entering the dishwasher.

8. The control method of a dishwasher according to any one of claims 1 to 4, characterized in that: Initially, based on the number of dishes in the dishwasher, a set total amount of rinse agent is added to the rinse agent tank of the dishwasher, and the remaining amount of rinse agent in the rinse agent tank is detected. The actual amount of rinse agent added is equal to the difference between the set total amount and the remaining amount.

9. The control method of the dishwasher according to claim 8, characterized in that: The remaining amount of rinse aid is detected by a liquid level sensor.

10. A dishwasher, characterized in that: A control method for a dishwasher according to any one of claims 1 to 9 is adopted.

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