Dish-washing machine drainage detection device based on auxiliary motor power detection and dish-washing machine

Abstract

The utility model relates to a dish-washing machine drainage detection device based on auxiliary motor power detection and a dish-washing machine, the dish-washing machine drainage detection device comprises an auxiliary motor with blades, a motor power detection device, a timer and a controller, the motor power detection device is configured to detect the motor operation power when the auxiliary motor operates; the timer is configured to perform timing after the dish-washing machine valve pump assembly starts drainage work, and the controller is connected with the auxiliary motor, the motor power detection device and the timer so as to determine whether the dish-washing machine is in an abnormal drainage state or not based on auxiliary motor operation power data detected by the motor power detection device and timing data of the timer. Therefore, whether the abnormal drainage state of the dish-washing machine is detected accurately.

Description

Technical Field

[0001] This utility model relates to the field of dishwashers, and in particular to a dishwasher drainage detection device and dishwasher based on auxiliary motor power detection. Background Technology

[0002] Existing dishwashers, after completing a washing cycle, control the activation of a valve pump assembly to drain wastewater from the dishwasher cavity, ensuring the cavity remains clean. If the dishwasher experiences poor drainage, wastewater cannot be completely expelled from the cavity. This wastewater then flows back into the cavity, contaminating dishes, reducing cleaning effectiveness, and negatively impacting the user experience.

[0003] Therefore, how to accurately detect whether the dishwasher's drainage status is abnormal has become a technical problem that urgently needs to be solved in the field of dishwasher drainage testing. Utility Model Content

[0004] The first technical problem to be solved by this utility model is to provide a dishwasher drainage detection device based on auxiliary motor power detection that can accurately detect the drainage status of a dishwasher, in contrast to the above-mentioned prior art.

[0005] The second technical problem to be solved by this utility model is to provide a dishwasher that uses the above-mentioned dishwasher drainage detection device based on auxiliary motor power detection.

[0006] The technical solution adopted by this utility model to solve the first technical problem is: a dishwasher drainage detection device based on auxiliary motor power detection, characterized in that it includes:

[0007] An auxiliary motor, having blades, is configured to be installed in the pump housing of the dishwasher valve pump assembly to start operation in response to the flow of liquid in the pump housing.

[0008] The motor power detection device is configured to detect the motor operating power when the auxiliary motor is running.

[0009] The timer is configured to start timing after the dishwasher valve pump assembly initiates the drainage process;

[0010] The controller is connected to the auxiliary motor, motor power detection device, and timer to determine whether the dishwasher is in an abnormal drainage state.

[0011] Improvedly, in the dishwasher drainage detection device based on auxiliary motor power detection, the timer is integrated into the controller.

[0012] In a further improvement, in the dishwasher drainage detection device based on auxiliary motor power detection, the auxiliary motor is disposed inside the pump housing and located at the bottom of the pump housing.

[0013] Improved in this invention, the dishwasher drainage detection device based on auxiliary motor power detection further includes a drainage abnormality indication device, which is connected to the controller.

[0014] Alternatively, in the dishwasher drainage detection device based on auxiliary motor power detection, the drainage abnormality prompting device has a voice alarm module and / or a light signal alarm module.

[0015] Furthermore, in this invention, the dishwasher drainage detection device based on auxiliary motor power detection also includes a display, which is connected to the controller.

[0016] The technical solution adopted by this utility model to solve the second technical problem is: a dishwasher, characterized in that it uses a dishwasher drainage detection device based on auxiliary motor power detection as described in any one of the claims.

[0017] Compared with the prior art, the advantages of this utility model are as follows: By including an auxiliary motor with blades, a motor power detection device, a timer, and a controller in the dishwasher drainage detection device, the motor power detection device is configured to detect the motor operating power when the auxiliary motor is running. The timer is configured to start timing after the dishwasher valve pump assembly starts drainage. The controller is connected to the auxiliary motor, the motor power detection device, and the timer respectively, so as to determine whether the dishwasher is in an abnormal drainage state based on the auxiliary motor operating power data detected by the motor power detection device and the timing data of the timer. In this way, accurate detection of whether the dishwasher is in an abnormal drainage state is achieved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the connection of the main electrical components of the dishwasher drainage detection device based on auxiliary motor power detection according to an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram showing the arrangement of the auxiliary motor inside the pump casing according to an embodiment of the present invention;

[0020] Figure 3 For having Figure 2 The diagram shows the setup of the valve pump assembly in the dishwasher. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] This embodiment provides a dishwasher drainage detection device based on auxiliary motor power detection. Specifically, see [link to documentation]. Figures 1-3As shown, the dishwasher drainage detection device based on auxiliary motor power detection in this embodiment includes an auxiliary motor 21, a motor power detection device 22, a timer 23, and a controller 24. The auxiliary motor 21 has blades 21a and is configured to be installed in the pump housing 10 of the dishwasher valve pump assembly 1 to start operation as liquid flows in the pump housing 10. The motor power detection device 22 is configured to detect the motor operating power of the auxiliary motor 21 when it is operating. The timer 23 is configured to start timing after the dishwasher valve pump assembly starts drainage operation. The controller 24 is connected to the auxiliary motor 21, the motor power detection device 22, and the timer 23 respectively, to determine whether the dishwasher is in an abnormal drainage state based on the motor operating power of the auxiliary motor detected by the motor power detection device 22 and the timing data of the timer 23. Preferably, the timer 23 is integrated into the controller 24.

[0023] In this embodiment, as a preferred location for the auxiliary motor, see [reference needed]. Figure 2 As shown, the auxiliary motor 21 is disposed inside the pump housing 10 and located at the bottom of the pump housing 10.

[0024] To provide a drainage malfunction warning when the dishwasher experiences a drainage problem, the dishwasher drainage detection device in this embodiment further includes a drainage malfunction warning device 25, which is connected to the controller 24. Depending on the actual needs, the drainage malfunction warning device 25 may have a voice alarm module or a light alarm module. Alternatively, the drainage malfunction warning device 25 may have both a voice alarm module and a light alarm module.

[0025] To meet the actual need for displaying the dishwasher's drainage status, the dishwasher drainage detection device in this embodiment may further include a display 26, which is connected to the controller 24.

[0026] This embodiment also provides a dishwasher. The dishwasher utilizes the aforementioned dishwasher drainage detection device based on auxiliary motor power detection.

[0027] The working principle of the dishwasher drainage detection device based on auxiliary motor power detection in this embodiment is explained below:

[0028] After the dishwasher finishes its washing cycle, the dishwasher valve pump assembly starts draining water, controlling the auxiliary motor to start running in the pump housing as the liquid flows. The controller receives the motor operating power data detected by the motor power detection device at this time; the motor operating power data detected by the motor power detection device when the dishwasher finishes its washing cycle is marked as P0.

[0029] After the dishwasher starts the drainage program and continues until the drainage program ends, the motor power detection device sends the motor operating power data of the auxiliary motor it detects to the controller at preset time intervals. The motor operating power data of the auxiliary motor detected by the motor power detection device after the dishwasher starts the drainage program are sequentially labeled as P1, P2, ..., PN. The preset time interval can be 1 second. N is the total number of motor operating power data detected by the valve pump power detection device.

[0030] The controller makes a judgment based on the motor power data detected by the motor power detection device during the detection period from the end of the dishwasher's washing program to the end of the drainage program, and the corresponding preset motor power data:

[0031] When the power difference between any motor operating power data and its corresponding preset motor operating power data is within the corresponding preset difference range, the dishwasher is determined to be in a drainage abnormal state at the time corresponding to any motor operating power data; otherwise, the dishwasher is determined to be in a drainage normal state at the time corresponding to any motor operating power data. Each motor operating power data has a corresponding preset motor operating power data, and each preset difference range has a corresponding drainage abnormal state level.

[0032] Of course, when the controller determines that the dishwasher has been in a drainage abnormality state more than the preset number of times during the above detection period, the controller will instruct the drainage abnormality prompt device to issue a prompt, so as to remind the dishwasher to perform drainage abnormality repair.

[0033] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dishwasher drainage detection device based on auxiliary motor power detection, characterized in that, include: An auxiliary motor (21), having blades (21a), is configured to be installed in the pump housing (10) of the dishwasher valve pump assembly (1) to start operation as liquid flows in the pump housing (10); The motor power detection device (22) is configured to detect the motor operating power when the auxiliary motor (21) is running; The timer (23) is configured to start timing after the dishwasher valve pump assembly starts draining; The controller (24) is connected to the auxiliary motor (21), the motor power detection device (22) and the timer (23) respectively to determine whether the dishwasher is in an abnormal drainage state.

2. The dishwasher drainage detection device based on auxiliary motor power detection according to claim 1, characterized in that, The timer (23) is integrated into the controller (24).

3. The dishwasher drainage detection device based on auxiliary motor power detection according to claim 1, characterized in that, The auxiliary motor (21) is disposed inside the pump housing (10) and located at the bottom of the pump housing (10).

4. The dishwasher drainage detection device based on auxiliary motor power detection according to any one of claims 1 to 3, characterized in that, It also includes a drainage malfunction indicator (25) which is connected to the controller (24).

5. The dishwasher drainage detection device based on auxiliary motor power detection according to claim 4, characterized in that, The drainage abnormality indication device (25) has a voice alarm module and / or a light signal alarm module.

6. The dishwasher drainage detection device based on auxiliary motor power detection according to claim 5, characterized in that, It also includes a display (26) which is connected to the controller (24).

7. A dishwasher, characterized in that, The application includes the dishwasher drainage detection device based on auxiliary motor power detection as described in any one of claims 1 to 6.

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