Dish-washing machine drainage detection device based on valve pump power detection and dish-washing machine

Abstract

The utility model relates to a dish-washing machine drainage detection device based on valve pump power detection and a dish-washing machine, the dish-washing machine drainage detection device comprises a valve pump power detection device, a timer and a controller, the valve pump power detection device detects motor operation power when a valve pump motor of a dish-washing machine valve pump assembly operates; the timer is used for timing after the dish-washing machine valve pump assembly starts drainage work, and the controller is connected with the valve pump 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 valve pump motor operation power data detected by the valve pump 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 valve pump 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 valve pump 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 valve pump 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 valve pump power detection, characterized in that it includes:

[0007] The valve pump power detection device is configured to detect the motor operating power of the valve pump motor of the dishwasher valve pump assembly when it is running.

[0008] The timer is configured to start timing after the dishwasher valve pump assembly initiates the drainage process;

[0009] The controller is connected to the valve pump power detection device and the timer to determine whether the dishwasher is in an abnormal drainage state.

[0010] Improvedly, in the dishwasher drainage detection device based on valve pump power detection, the timer is integrated into the controller.

[0011] Improved in this invention, the dishwasher drainage detection device based on valve pump power detection further includes a drainage abnormality indication device, which is connected to the controller.

[0012] Alternatively, in the dishwasher drainage detection device based on valve pump power detection, the drainage abnormality prompting device has a voice alarm module and / or a light signal alarm module.

[0013] In a further improvement, the dishwasher drainage detection device based on valve pump power detection also includes a display, which is connected to the controller.

[0014] 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 valve pump power detection as described in any one of the claims.

[0015] Compared with existing technologies, the advantages of this invention are as follows: The dishwasher drainage detection device includes a valve pump power detection device, a timer, and a controller. The valve pump power detection device detects the motor operating power of the dishwasher valve pump assembly when it is running. The timer starts timing after the dishwasher valve pump assembly starts draining. The controller is connected to both the valve pump power detection device and the timer. Based on the valve pump motor operating power data detected by the valve pump power detection device, the no-load power value of the valve pump motor, and the timing data of the timer, the device determines whether the dishwasher is in an abnormal drainage state. Thus, accurate detection of abnormal dishwasher drainage is achieved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the connection of the main electrical components of the dishwasher drainage detection device based on valve pump power detection according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram showing the setup of the valve pump assembly on the dishwasher. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] This embodiment provides a dishwasher drainage detection device based on valve pump power detection. Specifically, see [link to documentation]. Figure 1 and 2As shown, the dishwasher drainage detection device based on valve pump power detection in this embodiment includes a valve pump power detection device 21, a timer 22, and a controller 23. The controller 23 is connected to both the valve pump power detection device 21 and the timer 22. The valve pump power detection device 21 is configured to detect the motor operating power of the valve pump motor of the dishwasher valve pump assembly 1 when it is running. The timer 22 is configured to start timing after the dishwasher valve pump assembly 1 starts drainage. The controller 23 determines whether the dishwasher is in an abnormal drainage state based on the motor operating power detected by the valve pump power detection device 21, the no-load power value of the valve pump motor, and the timing data of the timer 22. The timer 22 is preferably integrated into the controller 23.

[0020] 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 24, which is connected to the controller 23. Depending on the specific needs, the drainage malfunction warning device 24 may have a voice alarm module or a light alarm module. Alternatively, the drainage malfunction warning device 24 may have both a voice alarm module and a light alarm module.

[0021] 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 25, which is connected to the controller 24.

[0022] This embodiment also provides a dishwasher, wherein the dishwasher's valve pump assembly includes a valve pump motor. The dishwasher utilizes the aforementioned dishwasher drainage detection device based on valve pump power detection.

[0023] The working principle of the dishwasher drainage detection device based on valve pump power detection in this embodiment is explained below:

[0024] After the dishwasher finishes its washing cycle, the dishwasher valve pump assembly starts the drainage process. The controller receives the motor operating power of the valve pump motor detected by the valve pump power detection device at this time. The motor operating power of the valve pump motor detected by the valve pump power detection device when the dishwasher finishes its washing cycle is marked as P0.

[0025] After the dishwasher starts the drainage program and continues until the program ends, the valve pump power detection device sends the detected motor operating power of the valve pump motor to the controller at preset time intervals. The motor operating power of the valve pump motor detected by the valve pump power detection device after the dishwasher starts the drainage program is sequentially labeled P1, P2, ..., P... N The preset time interval here can be 1 second; N is the total number of motor operating power data detected by the valve pump power detection device.

[0026] The controller makes a judgment based on the operating power of each motor and the no-load power value of the valve pump motor detected by the valve pump power detection device during the detection period from the end of the dishwasher's washing program to the end of the drainage program:

[0027] When the power difference between any motor's operating power data and the valve pump motor's no-load power value meets a preset drainage anomaly condition, the dishwasher is determined to be in a drainage anomaly state at the time corresponding to that motor's operating power data; otherwise, the dishwasher is determined to be in a normal drainage state at the time corresponding to that motor's operating power data. For example, the preset drainage anomaly condition is that the total number of times the obtained power difference falls within the corresponding preset difference range reaches a predetermined number. Each preset drainage anomaly condition has a corresponding drainage anomaly state level.

[0028] 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.

[0029] 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 valve pump power detection, characterized in that, include: The valve pump power detection device (21) is configured to detect the motor operating power of the valve pump motor of the dishwasher valve pump assembly (1) when it is running. The timer (22) is configured to start timing after the dishwasher valve pump assembly (1) starts the drainage operation; The controller (23) is connected to the valve pump power detection device (21) and the timer (22) respectively to determine whether the dishwasher is in an abnormal drainage state.

2. The dishwasher drainage detection device based on valve pump power detection according to claim 1, characterized in that, The timer (22) is integrated into the controller (23).

3. The dishwasher drainage detection device based on valve pump power detection according to claim 1 or 2, characterized in that, It also includes a drainage malfunction indicator (24), which is connected to the controller (23).

4. The dishwasher drainage detection device based on valve pump power detection according to claim 3, characterized in that, The drainage abnormality indication device (24) has a voice alarm module and / or a light signal alarm module.

5. The dishwasher drainage detection device based on valve pump power detection according to claim 3, characterized in that, It also includes a display (25) which is connected to the controller (23).

6. A dishwasher, characterized in that, The application includes the dishwasher drainage detection device based on valve pump power detection as described in any one of claims 1 to 5.

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