Dishwasher

Abstract

The utility model discloses a kind of dishwashers, dishwasher includes: washing cavity, washing cavity bottom has water cup, water cup has water inlet;Water inlet pipe, the water inlet end of water inlet pipe is configured to be connected to external water source, the water outlet end of water inlet pipe is connected with water inlet;Scale inhibition module, the scale inhibition module is connected on the water inlet pipe, for preventing or slowing down scale generation;Filter module, the filter module is connected on the water inlet pipe, and it is arranged in the upstream side of the scale inhibition module in water flow direction.According to the dishwasher of the utility model, by setting scale inhibition module and filter module, scale generation can be directly prevented or slowed down in water inlet end, without additional salt or other substances, so, user operability can be greatly improved;Meanwhile, it can also save use cost, so as to improve user experience feeling;In addition, scale inhibition module can also be protected, so as to improve the scale inhibition effect and service life of scale inhibition module.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, and in particular to a dishwasher. Background Technology

[0002] As a new type of product integrating "washing, sanitizing, drying, and storage" functions, dishwashers require special treatment of their inlet water to ensure efficient cleaning and prevent limescale buildup after drying. Currently, dishwashers typically use water softeners for their inlet water. Softening resin removes Ca2+, Mg2+, and other pollutants from the inlet water to achieve a softening effect. However, water softeners require the addition of softening salt for regeneration, which increases the washing cost of the dishwasher. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the present invention provides a dishwasher that improves user operability and saves on operating costs, thereby enhancing the user experience.

[0004] According to the present invention, the dishwasher includes: a washing chamber having a water cup at its bottom and a water inlet; a water inlet pipe having its inlet end configured to be connected to an external water source and its outlet end connected to the water inlet; a scale inhibition module connected in series with the water inlet pipe for preventing or slowing down scale formation; and a filter module connected in series with the water inlet pipe and arranged upstream of the scale inhibition module in the water flow direction.

[0005] According to this invention, the dishwasher, by setting a scale-inhibiting module on the water inlet pipe, can directly prevent or slow down the formation of scale at the water inlet without the need to add salt or other substances. This greatly improves user operability and saves on operating costs, thereby enhancing the user experience. In addition, by setting a filter module in front of the scale-inhibiting module, the purification level of the incoming water can be improved, thereby reducing water stains on the dishes after washing and improving the cleanliness of the dishwasher. At the same time, it can also prevent impurities from entering the scale-inhibiting module, thus protecting the scale-inhibiting module and improving its scale-inhibiting effect and service life.

[0006] According to some embodiments of the present invention, the scale inhibition module includes a slow-release scale inhibitor.

[0007] According to some embodiments of the present invention, the dishwasher further includes: a branch pipe, one end of which is connected to the inlet end of the water inlet pipe, and the other end of which is connected to the water inlet; and a valve structure configured to selectively connect the inlet end of the water inlet pipe to the filter module and / or the branch pipe.

[0008] According to some embodiments of this utility model, the valve structure is a three-way valve, which is connected between the inlet pipe and the branch pipe.

[0009] According to some embodiments of the present invention, the dishwasher further includes: a water quality detection device and a control module. The water quality detection device is used to detect the inlet water quality of the dishwasher. The water quality detection device and the valve structure are both electrically connected to the control module. The control module is configured to control the valve structure according to the inlet water quality detected by the water quality detection device.

[0010] According to some embodiments of the present invention, the water quality testing device is arranged inside the washing chamber.

[0011] According to some embodiments of the present invention, the dishwasher further includes a sterilization module, which is connected in series on the water inlet pipe and arranged between the filter module and the water inlet end of the water inlet pipe, for sterilizing the water flowing through the water inlet pipe.

[0012] According to some embodiments of the present invention, the dishwasher further includes: a water inlet valve, which is connected in series on the water inlet pipe and arranged on the upstream side of the filter module in the water flow direction, for controlling the opening and closing of the water inlet pipe and adjusting the water inlet flow rate.

[0013] According to some embodiments of the present invention, the dishwasher further includes a one-way valve, which is connected in series on the water inlet pipe and arranged between the water inlet valve and the filter module, for controlling the flow direction of the water.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a dishwasher according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of a dishwasher according to another embodiment of the present invention.

[0016] Figure label: 100. Dishwasher; 10. Washing chamber; 20. Water inlet pipe; 31. Disinfection module; 32. Filter module; 33. Scale inhibition module; 40. Branch pipe; 50. Three-way valve; 60. Water quality testing device; 70. Water inlet valve; 80. Check valve; 90. Cleaning pump. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] The following is for reference. Figures 1-2 A dishwasher 100 according to an embodiment of the present utility model is described.

[0019] like Figures 1-2 As shown, according to an embodiment of the present invention, the dishwasher 100 includes: a washing chamber 10, a water inlet pipe 20, a scale inhibition module 33, and a filter module 32. The washing chamber 10 has a water cup at the bottom, and the water cup has a water inlet. The water inlet end of the water inlet pipe 20 is configured to be connected to an external water source, and the water outlet end of the water inlet pipe 20 is connected to the water inlet. The scale inhibition module 33 is connected in series with the water inlet pipe 20 to prevent or slow down the formation of scale. The filter module 32 is connected in series with the water inlet pipe 20 and is arranged upstream of the scale inhibition module 33 in the water flow direction.

[0020] Understandably, the water inlet pipe 20 is mainly used to connect the external water source and the water inlet of the water cup to provide water to the water cup; the water cup is mainly used to store cleaning water to supply water to the washing chamber 10; the interior of the washing chamber 10 is mainly used to hold the tableware to be washed and to wash the tableware; the scale inhibition module 33 is mainly used to directly prevent or slow down the formation of scale, thereby keeping the inside of the washing chamber 10 clean, preventing water blockage, and improving the cleanliness of the tableware; the filter module 32 is mainly used to filter impurities in the water, such as colloids, large particles, suspended solids, complexes, bacteria, microorganisms, humic substances, etc., to purify the incoming water quality, reduce water stains on the tableware after washing, and improve the cleanliness of the dishwasher 100.

[0021] It should be noted that the water inlet of the water cup is formed on the side wall of the water cup, and the water cup also includes a water outlet, which is connected to a water pump so that the cleaning water in the water cup is transported into the washing chamber 10, thereby realizing the cleaning of the items to be cleaned.

[0022] Specifically, the scale inhibition module 33 in this embodiment can directly prevent or slow down the formation of scale without the need to add salt or other substances. This greatly improves user operability and saves on operating costs, thereby enhancing the user experience.

[0023] "The filter module 32 is connected in series with the water inlet pipe 20 and is arranged upstream of the scale inhibition module 33 in the direction of water flow." This means that the filter module 32 is arranged at the front end of the scale inhibition module 33 in the direction of water flow. Therefore, the filter module 32 can also prevent impurities from entering the scale inhibition module 33, thereby protecting the scale inhibition module 33 and improving the scale inhibition effect and service life of the scale inhibition module 33.

[0024] Optionally, the filter module 32 is an ultrafiltration or microfiltration filter for water purification, with a pore size greater than 50nm, which is larger than the pore size of RO and nanofiltration. This can increase the inlet water flow and reduce clogging, ensuring smooth water flow.

[0025] When the dishwasher 100 is working, water enters the inlet pipe 20 through the inlet end of the inlet pipe 20, and then enters the scale inhibition module 33 after being filtered by the filter module 32. After being treated by the scale inhibition module 33, the water enters the water cup through the outlet end of the inlet pipe 20, and then is pumped to the upper end of the washing chamber 10 by the water pump to clean the dishes to be washed.

[0026] According to the dishwasher 100 of this utility model, by setting a scale-inhibiting module 33 on the water inlet pipe 20, the formation of scale can be directly prevented or slowed down at the water inlet without the need to add salt or other substances. This greatly improves the user's operability and saves on operating costs, thereby enhancing the user experience. In addition, by setting a filter module 32 in front of the scale-inhibiting module 33, the purification level of the incoming water can be improved, thereby reducing water stains on the dishes after washing and improving the cleanliness of the dishwasher 100. At the same time, it can also prevent impurities from entering the scale-inhibiting module 33, thus protecting the scale-inhibiting module 33 and improving its scale-inhibiting effect and service life.

[0027] According to some embodiments of this utility model, the scale inhibition module 33 includes a slow-release scale inhibitor. The slow-release scale inhibitor is a scale inhibitor that exerts its effect continuously by slowly releasing the active ingredient. It has a longer duration of action and better scale removal effect. Therefore, including a slow-release scale inhibitor in the scale inhibition module 33 can improve the scale inhibition effect of the module 33, reduce the frequency of scale inhibitor replacement, and thus improve the user experience.

[0028] Optionally, the slow-release scale inhibitor is TAC scale inhibitor. TAC scale inhibitor is an innovative water treatment technology. Unlike traditional chemical agents, TAC technology primarily alters the crystal morphology of hardness ions (such as calcium and magnesium) in water through physical means, causing them to form tiny, loosely bound crystals, rather than hard scale adhering to the surfaces of pipes and equipment. Furthermore, the TAC process does not add any chemicals to the water, thus not altering its chemical composition and making it environmentally friendly. Simultaneously, it does not change the total hardness of the water, retains beneficial minerals, prevents scale buildup while ensuring the health of drinking water, and eliminates the need for backwashing, saving water and further enhancing environmental friendliness.

[0029] According to some embodiments of this utility model, such as Figure 2 As shown, the dishwasher 100 also includes a branch pipe 40 and a valve structure. One end of the branch pipe 40 is connected to the water inlet end of the water inlet pipe 20, and the other end of the branch pipe 40 is connected to the water inlet. The valve structure is configured to selectively connect the water inlet end of the water inlet pipe 20 to the filter module 32 and / or the branch pipe 40. It is understood that the valve structure is configured to connect the water inlet end of the water inlet pipe 20 to the filter module 32, or to connect the water inlet end of the water inlet pipe 20 to the branch pipe 40, or to connect the water inlet end of the water inlet pipe 20 to both the filter module 32 and the branch pipe 40. In other words, the water entering the dishwasher 100 can be configured to be entirely treated by the filter module 32 and the scale inhibitor module 33 before entering the washing chamber 10 to wash the dishes. Alternatively, it can be configured to be entirely directly entering the washing chamber 10. It can also be configured to partially be treated by the filter module 32 and the scale inhibitor module 33, and partially not be treated by the filter module 32 and the scale inhibitor module 33 before entering the washing chamber 10. The specific configuration can be selected based on the actual water quality. This can reduce the ineffective operation of the filter module 32 and the scale inhibitor module 33, thereby effectively reducing the overall energy consumption of the machine and avoiding resource waste.

[0030] According to some embodiments of this utility model, such as Figure 2 As shown, the valve structure is a three-way valve 50, which is connected between the water inlet pipe 20 and the branch pipe 40. The three-way valve 50 has a relatively simple structure, which reduces the space occupied by the valve structure and thus reduces the overall size of the dishwasher 100.

[0031] According to some embodiments of this utility model, such as Figure 2As shown, the dishwasher 100 also includes a water quality detection device 60 and a control module. The water quality detection device 60 is used to detect the inlet water quality of the dishwasher 100. Both the water quality detection device 60 and the valve structure are electrically connected to the control module. The control module is configured to control the valve structure based on the inlet water quality detected by the water quality detection device 60. In other words, the dishwasher 100 can select whether the inlet water is treated by the filter module 32 and the scale inhibition module 33 based on the feedback from the water quality detection device 60. For example, when the hardness of the inlet water is detected to be low and does not exceed the set threshold, the inlet water can be allowed to directly enter the washing chamber 10, thereby reducing the ineffective operation of the filter module 32 and the scale inhibition module 33, thus effectively reducing the overall energy consumption and avoiding resource waste.

[0032] According to some embodiments of this utility model, when the detected value of the inlet water quality is greater than a first preset value, the control module controls the valve structure to connect the inlet end of the inlet pipe 20 to the scale inhibition module; when the detected value of the inlet water quality is between a second preset value and a first preset value, the control module controls the valve structure to connect the inlet end of the inlet pipe 20 to both the filter module 32 and the branch pipe 40, wherein the first preset value is greater than the second preset value; when the detected value of the inlet water quality is less than the second preset value, the control module controls the valve structure to connect the inlet end of the inlet pipe 20 to the branch pipe 40. Understandably, when the detected water quality is poor, the control module can control the valve structure to disconnect the connection between the inlet pipe 20 and the branch pipe 40, so that the water entering the dishwasher 100 is filtered and then treated by the scale inhibition module 33, thereby reducing the content of calcium and magnesium ions entering the washing chamber 10 and improving the quality of the washing water. When the water quality is good, the control module can control the valve structure to disconnect the inlet end of the inlet pipe 20 from the filter module 32, so that the water enters the washing chamber 10 directly after disinfection, thereby reducing the energy consumption of the dishwasher 100. When the water quality is average, the valve structure can be controlled so that the inlet end of the inlet pipe 20 is connected to both the filter module 32 and the branch pipe 40. That is, part of the water enters the washing chamber 10 after being scaled by the scale inhibition module 33, and the other part enters the chamber directly. In this way, while ensuring the quality of the incoming water, the energy consumption of the dishwasher 100 can also be reduced, thereby achieving the purpose of energy saving and emission reduction.

[0033] It should be noted that the first preset value can be represented as the upper limit threshold of the water hardness of the dishwasher 100; the second preset value can be represented as the lower limit threshold of the water hardness of the dishwasher 100.

[0034] Optionally, the valve structure is a three-way valve 50, which is electrically connected to the control module. The control module can also control the opening degree of each inlet and outlet of the three-way valve 50 to distribute the flow of water entering the branch pipe 40 and the scale inhibition module 33, thereby achieving precise control and further reducing the energy consumption of the dishwasher 100.

[0035] According to some embodiments of this utility model, such as Figure 2 As shown, the water quality detection device 60 is arranged inside the washing chamber 10. Specifically, the water quality detection device 60 is arranged inside the washing chamber 10 to detect the quality of the washing water inside the washing chamber 10. This helps to optimize the layout of the dishwasher 100 and reduce the overall size of the dishwasher 100.

[0036] According to some embodiments of this utility model, such as Figures 1-2 As shown, the dishwasher 100 also includes a sterilization module 31, which is connected in series with the water inlet pipe 20 and arranged between the filter module 32 and the water inlet end of the water inlet pipe 20, for sterilizing the water flowing through the water inlet pipe 20. Specifically, the sterilization module 31 is connected in series with the water inlet pipe 20 and is mainly used to sterilize bacteria and microorganisms in the water flowing through the water inlet pipe 20, so as to purify the water and thus achieve clean water washing by the dishwasher 100. The disinfection module 31 is positioned between the filter module 32 and the water inlet end of the water inlet pipe 20. In other words, the disinfection module 31 is located at the front end of the water flow direction of the filter module 32. This allows for the control of microbial contamination at the water source, improving the cleanliness of the washing water and avoiding potential blind spots that may exist with traditional high-temperature sterilization methods. Furthermore, this makes the dishwasher 100 of this embodiment particularly suitable for household or infant product cleaning scenarios with high hygiene requirements. On the other hand, it ensures that the water flowing through the filter module 32 and scale inhibitor module 33 has been disinfected, meaning the microbial content in the water is extremely low or nonexistent. This prevents the filter module 32 and scale inhibitor module 33 from becoming clogged or experiencing reduced flow rate due to microbial growth during prolonged water intake, thereby extending their service life and reducing the maintenance costs of the dishwasher 100.

[0037] Optionally, the disinfection module 31 is prepared using slow-release Ag+ technology or by using silver tetroxide material.

[0038] According to some embodiments of this utility model, such as Figures 1-2 As shown, the dishwasher 100 also includes a water inlet valve 70, which is connected in series with the water inlet pipe 20 and arranged upstream of the filter module 32 in the water flow direction. The water inlet valve 70 controls the opening and closing of the water inlet pipe 20 and regulates the water flow rate. This allows the water supply to be completely cut off when water is not needed, preventing water from continuously flowing through or soaking the disinfection components. This effectively avoids the filter module 32 and the scale inhibition module 33 from being in a constantly wet or pressurized state, thereby reducing the risk of corrosion, scaling, and aging, and extending their service life.

[0039] Optionally, the water inlet valve 70 is electrically connected to the control module. In this way, when the dishwasher 100 is in use, the water inlet valve 70 can be opened automatically to achieve automatic water intake. When the dishwasher 100 does not need water intake during operation, the water inlet valve 70 is closed automatically to achieve automatic water shut-off. This can improve the automation of the dishwasher 100.

[0040] According to some embodiments of this utility model, such as Figures 1-2 As shown, the dishwasher 100 also includes a one-way valve 80, which is connected in series with the water inlet pipe 20 and arranged between the water inlet valve 70 and the filter module 32, for controlling the direction of liquid flow. Specifically, the one-way valve 80 is mainly used to ensure that the flow is only from the external water source towards the washing chamber 10. When the fluid attempts to flow in the opposite direction, the one-way valve 80 will automatically close to prevent such flow, thereby preventing backflow. Thus, by setting the one-way valve 80, while ensuring the normal operation of the dishwasher 100, it is also possible to prevent siphon reaction caused by pressure difference, thereby further ensuring the safety of using the dishwasher 100.

[0041] The following will refer to Figures 1-2 The present invention describes a dishwasher 100 according to two specific embodiments.

[0042] Example 1, Reference Figure 1 The dishwasher 100 includes: a washing chamber 10, a water inlet pipe 20, a disinfection module 31, a filter module 32, a scale inhibition module 33, a water inlet valve 70, a one-way valve 80, and a cleaning pump 90.

[0043] The washing chamber 10 has a water inlet, the water inlet end of the water inlet pipe 20 is connected to an external water source, the water outlet end of the water inlet pipe 20 is connected to the water inlet of the washing chamber 10, and the water inlet valve 70, the one-way valve 80, the disinfection module 31, the filter module 32 and the scale inhibition module 33 are connected in series on the water inlet pipe 20 along the direction of water flow.

[0044] Specifically, the inlet valve 70 is mainly used to control the opening and closing of the inlet pipe 20 and to regulate the inlet flow rate; the one-way valve 80 is mainly used to control the flow direction of the liquid; the disinfection module 31 is mainly used to disinfect bacteria and microorganisms in the inlet water flowing through the inlet pipe 20; the filter module 32 is mainly used to filter impurities in the water; and the scale inhibition module 33 is mainly used to prevent or slow down the formation of scale.

[0045] Furthermore, the scale inhibition module 33 uses TAC scale inhibitor to prevent or slow down the formation of scale; the disinfection module 31 uses slow-release Ag+ technology to disinfect the incoming water.

[0046] The cleaning pump 90 is connected between the outlet of the water inlet pipe 20 and the inlet of the washing chamber 10 to drive water into the washing chamber 10.

[0047] According to the dishwasher 100 of this utility model, by setting a scale-inhibiting module 33 on the water inlet pipe 20, the formation of scale can be directly prevented or slowed down at the water inlet without the need to add salt or other substances. This greatly improves the user's operability and saves on operating costs, thereby enhancing the user experience. In addition, by setting a filter module 32 in front of the scale-inhibiting module 33, the purification level of the incoming water can be improved, thereby reducing water stains on the dishes after washing and improving the cleanliness of the dishwasher 100. At the same time, it can also prevent impurities from entering the scale-inhibiting module 33, thus protecting the scale-inhibiting module 33 and improving its scale-inhibiting effect and service life.

[0048] Example 2, Reference Figure 2 The structure of this embodiment is roughly the same as that of Embodiment 1, with the same components using the same reference numerals. The only difference is that Embodiment 1 only includes the inlet pipe 20, while this embodiment also includes the branch pipe 40.

[0049] Specifically, the dishwasher 100 also includes: branch pipe 40, three-way valve 50, water quality detection device 60, and control module.

[0050] One end of the branch pipe 40 is connected to the water inlet pipe 20 located between the disinfection module 31 and the filter module 32 via a three-way valve 50, and the other end of the branch pipe 40 is connected to the water inlet of the washing chamber 10.

[0051] A water quality testing device 60 is arranged inside the washing chamber 10 to detect the inlet water quality of the dishwasher 100. Both the water quality testing device 60 and the three-way valve 50 are electrically connected to the control module. The control module is configured to control the three-way valve 50 based on the inlet water quality detected by the water quality testing device 60. Specifically, when the detected inlet water quality value is greater than a first preset value, the control module controls the three-way valve 50 to connect the outlet of the disinfection module 31 to the scale inhibition module; when the detected inlet water quality value is between a second preset value and a first preset value, the control module controls the three-way valve 50 to connect the outlet of the disinfection module 31 to both the scale inhibition module 33 and the branch pipe 40, wherein the first preset value is greater than the second preset value; when the detected inlet water quality value is less than the second preset value, the control module controls the three-way valve 50 to connect the outlet of the disinfection module 31 to the branch pipe 40.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dishwasher, characterized in that, include: A washing chamber, the bottom of which has a water cup with a water inlet; The water inlet pipe has its inlet end configured to be connected to an external water source, and its outlet end is connected to the water inlet. A scale inhibition module is connected in series on the water inlet pipe to prevent or slow down the formation of scale. A filter module is connected in series on the water inlet pipe and is arranged upstream of the scale inhibition module in the direction of water flow.

2. The dishwasher according to claim 1, characterized in that, The scale inhibition module includes a slow-release scale inhibitor.

3. The dishwasher according to claim 1, characterized in that, Also includes: A branch pipe, one end of which is connected to the inlet end of the inlet pipe, and the other end of which is connected to the inlet. A valve structure configured to selectively connect the inlet end of the inlet pipe to the filter module and / or the branch pipe.

4. The dishwasher according to claim 3, characterized in that, The valve structure is a three-way valve, which is connected between the inlet pipe and the branch pipe.

5. The dishwasher according to claim 3, characterized in that, Also includes: A water quality testing device and a control module are provided. The water quality testing device is used to detect the inlet water quality of the dishwasher. Both the water quality testing device and the valve structure are electrically connected to the control module. The control module is configured to control the valve structure according to the inlet water quality detected by the water quality testing device.

6. The dishwasher according to claim 5, characterized in that, The water quality testing device is arranged inside the washing chamber.

7. The dishwasher according to claim 1, characterized in that, Also includes: A disinfection module is connected in series on the water inlet pipe and arranged between the filter module and the water inlet end of the water inlet pipe, for disinfecting the water flowing through the water inlet pipe.

8. The dishwasher according to claim 1, characterized in that, Also includes: An inlet valve is connected in series on the inlet pipe and arranged on the upstream side of the filter module in the direction of water flow, for controlling the opening and closing of the inlet pipe and adjusting the inlet flow rate.

9. The dishwasher according to claim 8, characterized in that, Also includes: A one-way valve is connected in series on the water inlet pipe and is arranged between the water inlet valve and the filter module to control the flow direction of the water.

Images