A water inlet control device of a dishwasher and a dishwasher

Abstract

The utility model provides a kind of water inlet control device of dishwasher and dishwasher, and the water inlet control device includes respirator and water cup;The water outlet of the respirator is connected with the water inlet of the water cup by pipeline;Flowmeter is equipped in the respirator;Water level sensor is equipped in the water cup;The bottom of the water cup is equipped with drain pipe, and the end of the drain pipe is equipped with drain pump and is connected with the water inlet of the drain pump.The water inlet control device of dishwasher and dishwasher provided by the utility model can monitor actual flow of water inlet, and feedback compensation is carried out after water inlet deviation is generated, to adjust water inlet quantity, ensure washing effect and control energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a dishwasher water inlet control device and a dishwasher. Background Technology

[0002] As the quality of life in Chinese families improves, the demand for household dishwashers is constantly increasing. The water system is the core component of a dishwasher. The amount of water entering the system directly reflects the overall water and energy consumption of the machine. Insufficient water intake can cause the washing pump to dry-suction, reducing the water pressure at the pump outlet. This leads to insufficient rotation drive of the spray arms, resulting in a decrease in the spray arm speed and a weakening of the water jet's rinsing force, ultimately affecting the dishwashing performance.

[0003] The water intake of the dishwasher is controlled by an impeller-type flow meter embedded in the breather assembly. The principle is that the pressurized water flow drives the impeller of the flow meter to rotate. The magnetoelectric conversion device on the circuit board converts the impeller speed into an electrical pulse signal. The dishwasher controller continuously receives the pulse signal and converts it into a digital signal, which corresponds to the output flow value.

[0004] Currently, dishwashers in the industry all use the aforementioned flow meters to count the amount of water entering the machine. However, in actual use, malfunctions such as manufacturing and assembly inaccuracies, errors in electrical pulse signal conversion, and impeller jamming caused by fluid impurities can lead to deviations in the actual water flow rate at different stages of the program, making it difficult to maintain consistency. This is especially true during the main wash and rinse cycles, where deviations in water flow directly affect the overall cleaning performance and energy consumption.

[0005] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0006] The purpose of this invention is to provide a dishwasher water inlet control device that can monitor the actual water flow rate and provide feedback compensation after a water inlet deviation occurs, so as to adjust the water inlet volume, ensure washing effect and control energy consumption.

[0007] Another objective of this invention is to provide a dishwasher that includes the aforementioned water inlet control device, which can monitor the actual water inlet flow rate and provide feedback compensation after a water inlet deviation occurs, so as to adjust the water inlet volume, ensure washing effect and control energy consumption.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A dishwasher water inlet control device includes a breather and a water cup; the water outlet of the breather and the water inlet of the water cup are connected by a pipe.

[0010] The respirator is equipped with a flow meter;

[0011] The water cup is equipped with a water level sensor; the bottom of the water cup is equipped with a drain pipe, and the end of the drain pipe is equipped with a drain pump and connected to the inlet of the drain pump.

[0012] According to one embodiment of the present invention, the dishwasher water inlet regulating device further includes a control device, wherein the flow meter, the water level sensor, and the drain pump are all connected to the control device.

[0013] According to one embodiment of the present invention, the dishwasher water inlet control device further includes a water softening device, wherein the outlet of the breather is connected to the inlet of the water softening device via a pipeline; and the outlet of the water softening device is connected to the inlet of the water cup via a pipeline.

[0014] According to one embodiment of the present invention, the water cup includes a cup body, a water pressure chamber is provided on the side of the cup body, and the bottom of the water pressure chamber is connected to the bottom of the cup body; the water level sensor is disposed in the water pressure chamber.

[0015] According to one embodiment of the present invention, the bottom of the water pressure chamber is provided with a detachable cover; the cover is provided with a mounting hole, a mounting nut is provided in the mounting hole, and the water level sensor is located in the mounting nut.

[0016] According to one embodiment of this utility model, the mounting nut is a thermosetting nut.

[0017] According to one embodiment of the present invention, the water level sensor is provided with water pressure holes at both the top and bottom.

[0018] According to one embodiment of the present invention, a sealing ring is provided between the water level sensor and the mounting nut.

[0019] According to one embodiment of the present invention, the dishwasher water inlet control device further includes a chassis, and the water cup, the breather and the water softener are disposed on the chassis.

[0020] This utility model also provides a dishwasher, including the dishwasher water inlet control device described above.

[0021] Compared with the prior art, the advantages and beneficial effects of the embodiments of this utility model are as follows:

[0022] The dishwasher water inlet control device and dishwasher provided in this embodiment of the invention add a water level sensor to the water cup to monitor the actual water intake of the dishwasher. Based on the water volume requirements at each stage of the program, after water intake is completed, the water level sensor can detect the actual water intake. If it exceeds the deviation range, a water volume feedback compensation mechanism is activated, either adding water or draining water. By monitoring and providing feedback compensation for the actual water intake through the water level sensor, especially during the main wash and rinse stages, it can ensure that the entire machine maintains good washing and energy efficiency performance. In summary, the dishwasher water inlet control device and dishwasher provided in this embodiment of the invention can monitor the actual water flow rate and provide feedback compensation after a water intake deviation occurs to adjust the water intake, ensuring washing effect and controlling energy consumption. Attached Figure Description

[0023] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an undue limitation of this utility model. Wherein:

[0024] Figure 1 A schematic diagram of the structure of the dishwasher water inlet control device provided in this embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the water cup of the dishwasher water inlet control device provided in this embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the assembly of the water level sensor of the dishwasher water inlet control device provided in this embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the chassis of the dishwasher water inlet control device provided in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Breathing apparatus; 2. Water cup; 21. Cup body; 22. Water pressure chamber; 23. Cover; 24. Mounting hole; 25. Mounting nut; 26. Sealing ring; 3. Flow meter; 4. Water level sensor; 41. Water pressure hole; 5. Drain pipe; 6. Drain pump; 61. Pump bracket; 7. Inlet valve; 71. Inlet pipe; 8. Soft water device; 9. Chassis. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0031] In the description of this utility model, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] like Figure 1 , Figure 2 As shown, this embodiment of the present invention provides a dishwasher water inlet control device, including a breather 1 and a water cup 2. The outlet of the breather 1 is connected to the inlet of the water cup 2 via a pipe. A flow meter 3 is installed inside the breather 1. A water level sensor 4 is installed inside the water cup 2. A drain pipe 5 is provided at the bottom of the water cup 2, and a drain pump 6 is provided at the end of the drain pipe 5 and connected to the inlet of the drain pump 6.

[0033] When the dishwasher water inlet control device provided in this embodiment is in use, water flows through the breather 1 into the water cup 2. When the flow meter 3 in the breather 1 receives a sufficient flow pulse, which is converted by the control device into the water inlet flow required by the corresponding program, the control device immediately cuts off the water inlet (for example, by cutting off the water inlet valve 7 on the water inlet pipe 71). After waiting for S seconds, the water level sensor 4 detects the actual water level in the water cup 2: if the water level is within the normal setting range, the washing program runs; if the water level is lower than the minimum water level value, the control device stops the water inlet. The device calculates the water level difference and controls the water inlet for t1 seconds (e.g., energizing the water inlet valve 7). After S seconds of water inlet completion, the water level sensor 4 detects the actual water level in the water cup 2 until the water level is higher than the set minimum water level. If the water level in the water cup 2 is higher than the maximum water level, the control device calculates the water level difference and energizes the drain pump 6 for n seconds to discharge excess water through the drain pipe 5. After S seconds of drainage completion, the water level sensor 4 detects the actual water level in the water cup 2 until the water level is lower than the set maximum water level. This invention adds a water level sensor 4 to the water cup 2 to monitor the actual water intake of the dishwasher. Based on the water requirements at each stage of the program, after water inlet is completed, the water level sensor 4 can detect the actual water intake. If it exceeds the deviation range, a water feedback compensation mechanism is activated, either by adding water or draining water. By monitoring and providing feedback compensation for the actual water intake through the water level sensor 4, especially during the main wash and rinse stages, it can ensure that the entire machine maintains good washing and energy efficiency. In summary, the dishwasher water inlet control device provided in this embodiment of the present invention can monitor the actual water inlet flow rate and provide feedback compensation after a water inlet deviation occurs, so as to adjust the water inlet volume, ensure washing effect and control energy consumption.

[0034] In one embodiment of the present invention, the dishwasher water inlet control device further includes a control device (not shown in the figure), and the flow meter 3, the water level sensor 4, and the drain pump 6 are all connected to the control device.

[0035] To soften the water entering the dishwasher, such as Figure 1 As shown, in one embodiment of this utility model, the dishwasher water inlet control device further includes a water softener 8, which contains resin for softening water. The outlet of the breather 1 is connected to the inlet of the water softener 8 via a pipe, and the outlet of the water softener 8 is connected to the inlet of the water cup 2 via a pipe.

[0036] Specifically, such as Figure 1 , Figure 2As shown, the water cup 2 includes a cup body 21 for holding water for washing the inner cavity. A water pressure chamber 22 is provided on the side of the cup body 21, and the bottom of the water pressure chamber 22 is connected to the bottom of the cup body 21, forming a communicating vessel structure, so that the water levels in the cup body 21 and the water pressure chamber 22 are the same. A water level sensor 4 is located inside the water pressure chamber 22; by detecting the water level in the water pressure chamber 22, the water level in the cup body 21 can be determined.

[0037] To achieve the installation of the water level sensor 4, such as Figure 3 As shown, in one embodiment of this utility model, the bottom of the water pressure chamber 22 is provided with a removable cover 23. The cover 23 is provided with a mounting hole 24, and a mounting nut 25 is provided in the mounting hole 24. The water level sensor 4 is disposed in the mounting nut 25. Preferably, the mounting nut 25 is a thermosetting nut.

[0038] like Figure 3 As shown, in one embodiment of this utility model, the water level sensor 4 is provided with water pressure holes 41 at both the top and bottom. In order to improve the sealing effect and prevent water leakage, a sealing ring 26 is provided between the water level sensor 4 and the mounting nut 25.

[0039] like Figure 4 As shown, in one embodiment of this utility model, the dishwasher water inlet control device further includes a chassis 9, on which the water cup 2, the breather 1, and the water softener 8 are mounted. The chassis 9 serves as a load-bearing component for the entire dishwasher and also as a supporting component for the water cup 2, the breather 1, and the water softener 8. The drain pump 6 is a micro-displacement pump, which is housed in a pump bracket 61, which is fixed to the back of the water cup 2 with screws.

[0040] This utility model also provides a dishwasher, including the dishwasher water inlet control device described above.

[0041] The water inlet logic of the dishwasher provided in this embodiment is as follows: pressurized water from the pipeline enters the breather 1 through the inlet pipe 71 with the inlet valve 7. The flow meter 3 inside the breather 1 measures the water volume by rotating its impeller. The water is then connected to the resin chamber in the water softener 8 to soften the water, which then flows into the water cup 2 for the dishwasher's washing pump to draw it in. The water is then sprayed out by the spray arm and finally flows back into the water cup 2. After the water inlet program is completed for S seconds, the water level sensor 4 installed in the water cup 2 detects the actual water level. If the water level exceeds the set tolerance, the system activates a feedback compensation mechanism, either adding or draining water. When the water level sensor 4 detects that the actual water inlet exceeds the upper limit, the dishwasher control device starts the drain pump 6 to drain water until the water level is normal. If the water level is below the lower limit, the control device controls the water inlet (e.g., energizing the inlet valve 7) until the water level is normal.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dishwasher water inlet control device, characterized in that, It includes a respirator (1) and a water cup (2); the outlet of the respirator (1) and the inlet of the water cup (2) are connected by a pipeline; The respirator (1) is equipped with a flow meter (3); The water cup (2) is equipped with a water level sensor (4); the bottom of the water cup (2) is equipped with a drain pipe (5), and the end of the drain pipe (5) is equipped with a drain pump (6) and connected to the inlet of the drain pump (6).

2. The dishwasher water inlet control device according to claim 1, characterized in that, It also includes a control device, and the flow meter (3), the water level sensor (4), and the drainage pump (6) are all connected to the control device.

3. The dishwasher water inlet control device according to claim 1 or 2, characterized in that, It also includes a water softener (8), the outlet of the respirator (1) is connected to the inlet of the water softener (8) through a pipeline; the outlet of the water softener (8) is connected to the inlet of the water cup (2) through a pipeline.

4. The dishwasher water inlet control device according to claim 1 or 2, characterized in that, The water cup (2) includes a cup body (21), and a water pressure chamber (22) is provided on the side of the cup body (21). The bottom of the water pressure chamber (22) is connected to the bottom of the cup body (21); the water level sensor (4) is located in the water pressure chamber (22).

5. The dishwasher water inlet control device according to claim 4, characterized in that, The bottom of the water pressure chamber (22) is provided with a removable cover (23); the cover (23) is provided with a mounting hole (24), and a mounting nut (25) is provided in the mounting hole (24), and the water level sensor (4) is located in the mounting nut (25).

6. The dishwasher water inlet control device according to claim 5, characterized in that, The mounting nut (25) is a thermosetting nut.

7. The dishwasher water inlet control device according to claim 4, characterized in that, The water level sensor (4) is provided with water pressure holes (41) at both the top and bottom.

8. The dishwasher water inlet control device according to claim 5, characterized in that, A sealing ring (26) is provided between the water level sensor (4) and the mounting nut (25).

9. The dishwasher water inlet control device according to claim 3, characterized in that, It also includes a chassis (9), on which the water cup (2), the respirator (1) and the water softener (8) are mounted.

10. A dishwasher, characterized in that, Includes a dishwasher water inlet control device according to any one of claims 1 to 9.

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