Water softening device and dish washing machine

Abstract

The water softening device comprises a shell, a first reversing valve, a water tank and a second reversing valve, the shell is provided with a liquid inlet and a liquid outlet, a resin cavity is formed in the shell, a first flow path is formed between the liquid inlet and the resin cavity, a second flow path is formed between the liquid inlet and a water tank, and the first flow path is communicated with the second flow path. The first reversing valve is arranged at the intersection of the first flow path and the second flow path, a third flow path is formed between the liquid discharge end of the resin cavity and the water tank, a fourth flow path is formed between the liquid discharge end of the resin cavity and the water tank and the liquid discharge port, and the second reversing valve is arranged at the intersection of the third flow path and the fourth flow path. According to the water softening device, independent switching of the first reversing valve and the second reversing valve is adopted, the flow direction and the treatment path of water are controlled, then the water softening device can feed water into the water tank in multiple paths, and the problem that in the prior art, the application range of a water softener is limited due to the fact that the water inlet mode of the water softener is single is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of cleaning equipment, and particularly relates to a soft water device and a dishwasher. BACKGROUND

[0002] In the prior art field, the water softener is a common water treatment device, mainly used for removing calcium, magnesium and other hardness ions in tap water to provide softened water more suitable for household and industrial use. The water inlet path of the traditional water softener is designed as follows: the tap water first enters the water inlet valve, and then passes through the resin cavity in the water softener. The ion exchange resin in the resin cavity can adsorb the hardness ions in the water, thereby realizing water quality softening. The softened water then flows into the water tank and is then distributed from the water tank to the inner container or the sink of the dishwasher for washing use.

[0003] However, the traditional water softener has the following deficiencies in design and function:

[0004] Single water inlet mode: all water inlet must pass through the resin cavity, and water hardness cannot be flexibly adjusted according to different use scenarios and requirements. Especially for some delicate tableware or washing scenarios with special requirements for water hardness, the single water inlet path of the traditional water softener limits its application range, which not only wastes water resources but also increases the water cost of users, and does not conform to the concept of modern water conservation and environmental protection.

[0005] Therefore, it is necessary to improve the prior art to overcome the above-mentioned defects in the prior art. CONTENT OF THE UTILITY MODEL

[0006] Therefore, the technical problem to be solved by the utility model is the problem that the single water inlet mode of the water softener in the prior art limits the application range of the water softener.

[0007] To solve the above technical problems, one aspect of the utility model provides a soft water device, which comprises a shell, a first reversing valve, a water tank and a second reversing valve. The shell has a liquid inlet and a liquid outlet. A resin cavity is arranged inside the shell. A first flow path is formed between the liquid inlet and the resin cavity. A second flow path is formed between the liquid inlet and a sink. The first reversing valve is in communication with the liquid inlet and is arranged at the intersection of the first flow path and the second flow path. The first reversing valve is used to switch the flow direction of the liquid to the first flow path or the second flow path. The water tank is arranged outside the shell and is used to supply water to the sink. A third flow path is formed between the liquid outlet of the resin cavity and the water tank. A fourth flow path is formed between the liquid outlet of the resin cavity and the sink and the liquid outlet. The second reversing valve is in communication with the liquid outlet of the resin cavity and is arranged at the intersection of the third flow path and the fourth flow path. The second reversing valve is used to switch the flow direction of the liquid to the third flow path or the fourth flow path.

[0008] With this configuration, the water softening device of this application uses independent switching of the first and second reversing valves to control the water flow direction and processing path, thereby enabling the water softening device to enter the water tank through multiple paths. The first reversing valve of this application can switch water paths to control water to flow directly into the water tank, thereby adjusting the water hardness. The structural design of the water softening device of this application overcomes the problem of limited application scenarios caused by the single water inlet path in the prior art, which makes it impossible to adjust the water hardness. The design of the water softening device of this application improves the applicability of the dishwasher to washing different tableware, which is conducive to improving the user experience.

[0009] In one specific embodiment, one end of the fourth flow path is connected to the second reversing valve, and the other end of the fourth flow path is divided into a liquid supply flow path and a liquid discharge flow path. The liquid supply flow path is connected to the water tank, and the liquid discharge flow path is connected to the liquid discharge port.

[0010] With this configuration, the second reversing valve switches the water flow towards either the third or fourth flow path. The fourth flow path in this application employs a split-flow design, creating both a supply and drainage path. This allows the second reversing valve to integrate the functions of supplying water to the tank and sink, as well as draining water. This improves the compactness and integration of the device, simplifies its structure, and reduces costs. Furthermore, the supply and drainage path design allows brine to be directly discharged through the drainage path after passing through the second reversing valve, preventing brine from entering the tank or sink. This avoids corrosion of the dishwasher's interior by high-concentration brine, extends the dishwasher's lifespan, and reduces maintenance costs.

[0011] In one specific embodiment, the water softening device further includes a third reversing valve, which is connected to the second reversing valve and is located at the branch point of the fourth flow path. The third reversing valve is used to switch the liquid flow to the water tank or the drain outlet.

[0012] With this configuration, the application uses a third directional valve to control the flow direction of the liquid, which improves the accuracy of liquid control and further enhances the flexibility of the water softening device. This allows the water softening device to select whether to send the treated water directly into the water tank or discharge it into the drainage system as needed, thus achieving efficient discharge of softened water into the water tank and regenerated brine.

[0013] In one specific embodiment, the interior of the housing is further provided with a salt chamber spaced apart from the resin chamber. The salt chamber and the resin chamber are connected by a connecting flow path. The water softener also includes a one-way valve, which is provided on the connecting flow path. The brine inside the salt chamber flows into the resin chamber through the one-way valve.

[0014] With this configuration, the brine chamber and resin chamber of this application are connected by a one-way valve, which allows the brine to flow unidirectionally to the resin chamber under the control of the one-way valve, thereby restoring the softening effect of the resin chamber. This improves the regeneration efficiency and safety of the water softener and avoids damage to the system caused by brine backflow.

[0015] In one specific embodiment, the resin chamber has two spaced-apart inlet ends, one of which is connected to a first reversing valve, and the salt chamber is connected to the other inlet end of the resin chamber via a check valve.

[0016] With this configuration, the resin chamber of this application, by employing two different inlet ends, can achieve non-interference between the inlet paths of water and brine, allowing water and brine to work simultaneously, thus improving processing efficiency and flexibility. Furthermore, by using two different inlet ends, the resin chamber avoids the possibility of residual salt solution from the brine pipes mixing with water and entering the water tank and reservoir, which could damage the water softener. The dual inlet structure of the resin chamber in this application enhances safety during use.

[0017] In one specific embodiment, the water softening device further includes a first sensor, a second sensor, and a controller. The first sensor is disposed in the housing and is used to detect the salt concentration in the salt chamber. The second sensor is disposed in the housing and is used to detect the hardness of the water inside the second flow path. The controller is disposed in the housing and is signal-connected to the first sensor and the second sensor.

[0018] With this configuration, the present application adopts a dual-sensor and controller structure, which can not only monitor salinity but also detect water hardness and adjust water hardness under the action of the controller. This improves the intelligence level of the water softening device, enhances the intelligence level of the dishwasher, reduces human intervention, and improves washing effect and water-saving efficiency.

[0019] In one specific implementation, the first reversing valve, the second reversing valve, and the third reversing valve are all two-position three-way valves.

[0020] With this configuration, the first, second, and third directional valves of this application adopt two-position three-way valves as directional valves, which simplifies the structure of the water softening device, reduces costs, and improves the reliability and durability of the valves.

[0021] In one specific embodiment, the water softening device includes a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, a seventh pipeline, and an eighth pipeline. The inlet is connected to the inlet of a first reversing valve via the first pipeline. One outlet of the first reversing valve is connected to the first end of the second pipeline, and the other outlet of the first reversing valve is connected to the first end of the third pipeline. The second end of the second pipeline is connected to a resin chamber to form a first flow path, and the second end of the third pipeline is connected to a water tank to form a second flow path. The drain end of the resin chamber is connected to the inlet of the second reversing valve via the fourth pipeline. The system is as follows: one outlet of the second directional valve is connected to the first end of the fifth pipeline; the second end of the fifth pipeline passes through the shell and connects to the water tank to form the third flow path; the other outlet of the second directional valve is connected to the third directional valve through the sixth pipeline; one outlet of the third directional valve is connected to the first end of the seventh pipeline; the other outlet of the third directional valve is connected to the first end of the eighth pipeline; the second end of the seventh pipeline is connected to the water tank to form the liquid supply flow path; the second end of the eighth pipeline is connected to the drain port to form the liquid discharge flow path; and the sixth, seventh, and eighth pipelines work together to form the fourth flow path.

[0022] With this configuration, the flow path of the water softener in this application is formed by the corresponding pipeline setup, and multiple water inlet paths are achieved through multiple pipelines to improve the application scenarios of the water softener. The structure of multiple pipelines in this application can improve the precise control of the liquid inside the water softener, ensure the adjustability of water hardness and the direct discharge of regenerated brine, reduce water waste, and improve the washing effect.

[0023] In one specific embodiment, along the height direction of the shell, the drain port is located on one side of the bottom of the inlet; and / or the drain port and the inlet are located on opposite sides of the width direction of the shell; and / or along the width direction of the shell, the water tank is located on one side of the inlet.

[0024] With this configuration, the application adopts a reasonable layout of the inlet and outlet, as well as the position design of the water tank, which optimizes the internal structure of the water softener, improves space utilization, and reduces the volume and weight of the water softener. At the same time, the location of the outlet facilitates the complete discharge of liquid to the outside of the resin chamber, which helps to improve the liquid discharge efficiency.

[0025] Another aspect of this utility model provides a dishwasher, which includes a body and the aforementioned water softening device. The body has a water tank and the water softening device is disposed in the body.

[0026] This design, by integrating the aforementioned water softening device into the dishwasher, achieves water softening functionality, improves washing performance, reduces damage to delicate tableware, and conserves water resources. The result is an enhanced overall performance and market competitiveness of the dishwasher, meeting users' higher demands for performance and user experience. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a structural block diagram of the water softening device of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Housing; 20. First directional valve; 30. Resin chamber; 40. Check valve; 50. Salt chamber; 60. Second directional valve; 70. Third directional valve; 80. Water tank; 90. Water trough; 110. First pipeline; 120. Second pipeline; 130. Third pipeline; 140. Fourth pipeline; 150. Fifth pipeline; 160. Sixth pipeline; 170. Seventh pipeline; 180. Eighth pipeline; 190. Connecting flow path; 210. Ninth pipeline. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0033] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0034] The water softening device provided in this application solves the problem that the single water inlet method of existing water softeners limits their applicability. It provides a dishwasher that includes a body and a water softening device. The body has a water tank for washing dishes and other kitchen utensils. The water softening device is located in the body and, through a multi-flow-path structure, provides softened water of different hardness to the water tank. This allows the dishwasher to be used with different types of tableware, improving its applicability and user experience.

[0035] In this embodiment, the water softening device is integrated into the dishwasher, realizing the water softening function of the dishwasher, improving the washing effect, reducing damage to delicate tableware, and saving water resources.

[0036] Dishwashers are used in both home and commercial environments.

[0037] like Figure 1 As shown, the water softening device includes a housing 10, a water tank 80, and multiple reversing valves. The housing 10 has a resin chamber 30 and a salt chamber 50. The resin chamber 30 contains resin for softening water, and the salt chamber 50 contains a salt solution. The resin chamber 30 and the salt chamber 50 are spaced apart inside the housing 10.

[0038] The housing 10 has a liquid inlet and a liquid outlet. The plurality of reversing valves include at least a first reversing valve 20. A first flow path is formed between the liquid inlet and the resin chamber 30, and a second flow path is formed between the liquid inlet and the water tank 90. ​​The first reversing valve 20 is connected to the liquid inlet and is located at the intersection of the first flow path and the second flow path. The first reversing valve 20 is used to switch the liquid flow towards the first flow path or the second flow path.

[0039] Specifically, the water flow path can be switched by switching the first reversing valve 20. When the external water supply device supplies water to the interior of the water softener, the water flows from the inlet to the first reversing valve 20. The first reversing valve 20 controls the water to flow through the first flow path to the resin chamber 30, or controls the water to flow through the second flow path to the water tank 90.

[0040] In this embodiment, the first reversing valve 20 is a two-position three-way valve. By operating the valve body, the water can be controlled to flow in either the water tank 90 or the resin chamber 30 in one direction. Using a two-position three-way valve as the reversing valve simplifies the structure of the water softening device, reduces costs, and improves the reliability and durability of the valve.

[0041] The first reversing valve 20 can be adjusted manually or electrically, and the first reversing valve 20 is connected to the resin chamber 30 by default.

[0042] In this embodiment, along the height direction of the housing 10, the drain port is located on the bottom side of the inlet port.

[0043] In this embodiment, the drain port and the inlet port are located on both sides of the width direction of the housing 10.

[0044] This application adopts a reasonable layout of the inlet and outlet, which optimizes the internal structure of the water softener, improves space utilization, and reduces the volume and weight of the water softener. At the same time, the location of the outlet facilitates the complete discharge of liquid to the outside of the resin chamber 30, which helps to improve the liquid discharge efficiency.

[0045] like Figure 1 As shown, the water softening device also includes a first pipe 110, a second pipe 120, and a third pipe 130 for supplying liquid flow.

[0046] The first liquid inlet is connected to the inlet of the first reversing valve 20 through the first pipeline 110. One end of the first pipeline 110 is connected to an external water supply device, and the other end of the first pipeline 110 is connected to the first reversing valve 20, so as to supply liquid to the first reversing valve 20.

[0047] One of the outlets of the first reversing valve 20 is connected to the first end of the second pipe 120, and the second end of the second pipe 120 is connected to the resin cavity 30 to form a first flow path. When the first flow path is opened, water can be supplied to the inside of the resin cavity 30. The water flowing into the inside of the resin cavity 30 will be softened. The softened water is used to flow to the water tank 90 or the water tank 80 to provide softened water for cleaning tableware, etc.

[0048] The other outlet of the first reversing valve 20 is connected to the first end of the third pipe 130, and the second end of the third pipe 130 is connected to the sink 90 to form a second flow path. When the second flow path is open, water flows directly to the sink 90 to provide unsoftened water, which can then mix with softened water to increase the hardness of the water inside the sink 90. ​​Water of different hardness can be adjusted by adjusting the water inlet volume of the first and second flow paths. Water of different hardness can be used for different types of tableware, thereby increasing the applicable scenarios and scope of the dishwasher.

[0049] In this embodiment, the water softening device further includes a second sensor and a controller. The second sensor is disposed in the housing 10 and is used to detect the hardness of the water inside the second flow path. The controller is disposed in the housing 10 and is signal-connected to the second sensor and the first reversing valve 20. The second sensor is used to collect the real-time hardness of the water inside the second flow path and send a signal to the controller. The controller receives the real-time hardness and compares it with a preset hardness. The controller controls the first reversing valve 20 to control the flow path to the water tank 90, thereby regulating the hardness of the water flowing into the water tank 90. ​​This improves the intelligence level of the water softening device and the dishwasher, reduces human intervention, and improves washing effect and water-saving efficiency. The preset hardness can be adaptively set according to the type of tableware to be washed.

[0050] like Figure 1 As shown, the water tank 80 is located on the outside of the housing 10. The water tank 80 has a water storage cavity that can be used to store water softened by the resin cavity 30. The water tank 80 is connected to the water tank 90 through the ninth pipe 210, which is used to supply the water inside the water storage cavity to the water tank 90 through the ninth pipe 210.

[0051] Specifically, along the width direction of the shell 10, the water tank 80 is located on the side of the liquid inlet, wherein the width direction is... Figure 1 The X direction is shown, and the height direction is... Figure 1 The Z direction is shown.

[0052] In this embodiment, a third flow path is formed between the drain end of the resin cavity 30 and the water tank 80, and a fourth flow path is formed between the drain end of the resin cavity 30, the water tank 90, and the drain outlet.

[0053] Among them, the multiple reversing valves include at least a second reversing valve 60, which is connected to the discharge end of the resin chamber 30. The second reversing valve 60 is located at the intersection of the third flow path and the fourth flow path, and is used to switch the liquid flow towards the third flow path or the fourth flow path.

[0054] The water softening device of this application employs independent switching of a first reversing valve 20 and a second reversing valve 60 to control the water flow direction and processing path, thereby enabling the water softening device to receive water into the water tank 90 via multiple paths. The first reversing valve 20 can switch water paths to control water to flow directly into the water tank 90, achieving adjustment of water hardness. The structural design of the water softening device overcomes the problem of limited application scenarios and inability to adjust water hardness caused by a single water inlet path in existing technologies. The water softening device of this application improves the dishwasher's applicability to washing different types of tableware, thus enhancing the user experience.

[0055] In this embodiment, the second reversing valve 60 is a two-position three-way valve, which can switch the water flow direction to either the water tank 80 or the water trough 90 and the drain outlet by operating the valve body. Using a two-position three-way valve as the reversing valve simplifies the structure of the water softening device, reduces costs, and improves the reliability and durability of the valve.

[0056] The second reversing valve 60 can be adjusted manually or electrically, and is connected to the water tank 80 by default.

[0057] One end of the fourth flow path is connected to the second reversing valve 60, and the other end of the fourth flow path splits into a supply flow path and a discharge flow path. The supply flow path is connected to the water tank 90, and the discharge flow path is connected to the discharge port. After the water inside the second reversing valve 60 flows into the fourth flow path, the water can either flow to the water tank 90 through the supply flow path or flow to the discharge port through the discharge flow path for discharge.

[0058] Understandably, after the water flows through the supply path to the water tank 90, it is used to supply softened water to the inside of the water tank 90. ​​After the water flows through the drain path to the drain port, it is discharged to the outside of the housing 10.

[0059] In this embodiment, the second reversing valve 60 is used to switch the water flow towards the third or fourth flow path. The fourth flow path of this application adopts a structure that splits the flow into a supply flow path and a drainage flow path, allowing the second reversing valve 60 to integrate the functions of supplying water to the water tank 80 and the water trough 90, as well as draining water. This improves the compactness and integration of the device, simplifies the device structure, and reduces costs. Simultaneously, the structure of the supply and drainage flow paths allows brine to be directly discharged through the drainage flow path after passing through the second reversing valve 60, preventing brine from entering the water tank 80 or the water trough 90. This avoids corrosion of the dishwasher's interior by high-concentration brine, extends the dishwasher's lifespan, and reduces maintenance costs.

[0060] like Figure 1 As shown, the multiple reversing valves also include a third reversing valve 70, which is connected to the second reversing valve 60. The third reversing valve 70 is located at the branch point of the fourth flow path and is used to switch the liquid flow to the water tank 90 or the drain port.

[0061] Specifically, this application uses a third reversing valve 70 to control the flow direction of the liquid, which improves the accuracy of liquid control and further enhances the flexibility of the water softening device, so that the water softening device can select to send the treated water directly into the water tank 90 or discharge it into the drainage system as needed, thus realizing the efficient discharge of softened water into the water tank 90 and regenerated brine.

[0062] The third directional valve 70 is a two-position three-way valve that can be adjusted manually or electrically. By default, the third directional valve 70 is connected to the water tank 90. ​​The third directional valve 70 can switch the water flowing through the valve body to flow unidirectionally toward the water tank 90 or the drain outlet. Using a two-position three-way valve as the directional valve simplifies the structure of the water softening device, reduces costs, and improves the reliability and durability of the valve.

[0063] In this embodiment, the water softening device includes a fourth pipe 140. The drain end of the resin chamber 30 is connected to the inlet of the second reversing valve 60 through the fourth pipe 140, so as to enable the softened water inside the resin chamber 30 to flow toward the second reversing valve 60.

[0064] The water softening device also includes a fifth pipe 150, one of the outlets of the second reversing valve 60 is connected to the first end of the fifth pipe 150, and the second end of the fifth pipe 150 passes through the housing 10 and is connected to the water tank 80 to form a third flow path. The fifth pipe 150 is configured to form the third flow path to allow the softened water from the second reversing valve 60 to flow to the water tank 80 for storage inside the water tank 80.

[0065] The water softening device also includes a sixth pipe 160, a seventh pipe 170, and an eighth pipe 180. Another outlet of the second reversing valve 60 is connected to the third reversing valve 70 through the sixth pipe 160. One outlet of the third reversing valve 70 is connected to the first end of the seventh pipe 170, and the other outlet of the third reversing valve 70 is connected to the first end of the eighth pipe 180. The second end of the seventh pipe 170 is connected to the water tank 90 to form a liquid supply flow path, and the second end of the eighth pipe 180 is connected to the drain outlet to form a liquid discharge flow path. The sixth pipe 160, the seventh pipe 170, and the eighth pipe 180 cooperate to form a fourth flow path.

[0066] In this embodiment, after long-term use, the resin inside the resin cavity 30 will lose its softening effect. A high concentration of salt solution can be supplied to the inside of the resin cavity 30 through the salt cavity 50 to restore the resin's water softening effect.

[0067] It should be noted that if high-concentration salt water is directly introduced into the water tank 80, inner tub, or sink 90, it will corrode the metal parts inside the dishwasher, shortening the lifespan of the equipment. At the same time, after the high-concentration salt water corrodes the metal parts, it will contain calcium and magnesium ions. These ions will react with components such as sodium percarbonate in the detergent to form insoluble carbonates, resulting in residues on the surface of the tableware and affecting the cleaning effect.

[0068] To overcome the above problems, such as Figure 1 As shown, the brine chamber 50 and the resin chamber 30 are connected by a connecting flow path 190. The water softener also includes a one-way valve 40, which is installed on the connecting flow path 190. The brine inside the brine chamber 50 flows into the resin chamber 30 through the one-way valve 40.

[0069] The flow path of the salt solution in this application is formed by the salt chamber 50, the one-way valve 40, the second reversing valve 60, the third reversing valve 70 and the drain port in sequence, so that the overall flow path of the salt solution will not flow through the water tank 80 and the water tank 90. ​​Therefore, the corrosion of the water tank 80 and the water tank 90 by the salt solution is avoided. The structural design of the water softening device in this application is conducive to improving the safety of the structure.

[0070] To further ensure that the salt solution does not affect the entry into the water tank 90, the pipeline can be flushed through a further rinsing action. This involves adjusting the first reversing valve 20, the second reversing valve 60, and the third reversing valve 70. Water from the first reversing valve 20 enters the resin chamber 30, and the water in the resin chamber 30 flows through the second reversing valve 60 to the third reversing valve 70. The third reversing valve 70 then switches the liquid flow to the drain port, thus flushing the pipeline and preventing the accumulation of salt solution inside. Simultaneously, the flushing flow does not pass through the water tank 80 and the water tank 90, avoiding water consumption, reducing water waste, and lowering the user's water costs.

[0071] Specifically, the salt chamber 50 and the resin chamber 30 of this application are provided with a one-way valve 40, so that the brine can flow unidirectionally to the resin chamber 30 under the control of the one-way valve 40 to restore the softening effect of the resin chamber 30, thereby improving the regeneration efficiency and safety of the water softener and avoiding damage to the system caused by brine backflow.

[0072] In this embodiment, the resin chamber 30 has two spaced-apart inlet ends. One of the inlet ends of the resin chamber 30 is connected to the first reversing valve 20, and the salt chamber 50 is connected to the other inlet end of the resin chamber 30 through a one-way valve 40.

[0073] The resin chamber 30 of this application, by employing two different inlet ends, ensures that the inlet paths of water and brine do not interfere with each other, allowing water and brine to operate simultaneously, thus improving processing efficiency and flexibility. Furthermore, by using two different inlet ends, the resin chamber 30 avoids the possibility of residual salt solution from the brine-flowing pipe mixing with water and entering the water tank 80 and water trough 90, which could damage the water softening device. The structural design of the two inlet ends of the resin chamber 30 in this application enhances safety during use.

[0074] In this embodiment, the softening device also includes a first sensor, which is disposed in the housing 10. The first sensor is used to detect the salt concentration in the salt chamber 50. The first sensor is connected to the controller signal. The first sensor detects the concentration of the salt solution in real time and feeds it back to the controller so that the salt chamber 50 can provide a salt solution of a preset concentration to the resin chamber 30. The setting of the first sensor is beneficial to improving the accuracy of the salt solution to be supplied.

[0075] In this embodiment, during the use of the water softener, multiple inlet flow paths can be formed by switching the first reversing valve 20 and the second reversing valve 60:

[0076] Water inlet flow path 1: First reversing valve 20 - water tank 90.

[0077] Water inlet flow path 2: First reversing valve 20 - resin chamber 30 - second reversing valve 60 - water tank 80 - water trough 90.

[0078] Water inlet flow path 3: First reversing valve 20 - resin chamber 30 - second reversing valve 60 - third reversing valve 70 - water tank 90.

[0079] The drainage path of the salt solution is as follows: salt chamber 50 - resin chamber 30 - second reversing valve 60 - third reversing valve 70 - drain port.

[0080] Saltwater flow path: First reversing valve 20 - Resin chamber 30 - Second reversing valve 60 - Third reversing valve 70 - Drain port.

[0081] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0082] The water softening device of this application employs independent switching of a first reversing valve 20 and a second reversing valve 60 to control the water flow direction and processing path, thereby enabling the water softening device to receive water into the water tank 90 via multiple paths. The first reversing valve 20 can switch water paths to control water to flow directly into the water tank 90, achieving adjustment of water hardness. The structural design of the water softening device overcomes the problem of limited application scenarios and inability to adjust water hardness caused by a single water inlet path in existing technologies. The water softening device of this application improves the dishwasher's applicability to washing different types of tableware, thus enhancing the user experience.

[0083] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the protection scope of this utility model.

Claims

1. A water softening device, characterized in that, For supplying water to the dishwasher's sink (90), the water softening device includes: The housing (10) has a liquid inlet and a liquid outlet. A resin cavity (30) is provided inside the housing (10). A first flow path is formed between the liquid inlet and the resin cavity (30). A second flow path is formed between the liquid inlet and the water tank (90). The first reversing valve (20) is connected to the liquid inlet. The first reversing valve (20) is located at the intersection of the first flow path and the second flow path. The first reversing valve (20) is used to switch the liquid flow towards the first flow path or the second flow path. A water tank (80) is disposed on the outside of the housing (10) for supplying water to the water tank (90). A third flow path is formed between the drain end of the resin chamber (30) and the water tank (80), and a fourth flow path is formed between the drain end of the resin chamber (30), the water tank (90), and the drain port. The second reversing valve (60) is connected to the drain end of the resin chamber (30). The second reversing valve (60) is located at the intersection of the third flow path and the fourth flow path. The second reversing valve (60) is used to switch the liquid flow towards the third flow path or the fourth flow path.

2. The water softening device according to claim 1, characterized in that, One end of the fourth flow path is connected to the second reversing valve (60), and the other end of the fourth flow path is divided into a liquid supply flow path and a liquid discharge flow path. The liquid supply flow path is connected to the water tank (90), and the liquid discharge flow path is connected to the liquid discharge port.

3. The water softening device according to claim 2, characterized in that, The water softening device also includes a third reversing valve (70), which is connected to the second reversing valve (60). The third reversing valve (70) is located at the branch point of the fourth flow path and is used to switch the liquid flow to the water tank (90) or the drain port.

4. The water softening device according to claim 1, characterized in that, The interior of the housing (10) is also provided with a salt cavity (50) spaced apart from the resin cavity (30), and the salt cavity (50) and the resin cavity (30) are connected through a connecting flow path (190); The water softening device also includes a one-way valve (40), which is disposed on the connecting flow path (190). The brine inside the salt chamber (50) flows into the resin chamber (30) through the one-way valve (40).

5. The water softening device according to claim 4, characterized in that, The resin chamber (30) has two spaced-apart inlet ends. One of the inlet ends of the resin chamber (30) is connected to the first reversing valve (20), and the salt chamber (50) is connected to the other inlet end of the resin chamber (30) through the one-way valve (40).

6. The water softening device according to claim 4, characterized in that, The water softening device also includes: A first sensor is disposed in the housing (10) and is used to detect the salt concentration in the salt chamber (50); A second sensor is disposed in the housing (10) and is used to detect the hardness of the water inside the second flow path; A controller is disposed in the housing (10) and is signal-connected to the first sensor and the second sensor.

7. The water softening device according to claim 3, characterized in that, The first reversing valve (20), the second reversing valve (60) and the third reversing valve (70) are all two-position three-way valves.

8. The water softening device according to claim 3, characterized in that, The water softening device includes: The first pipeline (110) is connected to the inlet of the first reversing valve (20) through the first pipeline (110); The second pipeline (120) and the third pipeline (130) are connected as follows: one outlet of the first reversing valve (20) is connected to the first end of the second pipeline (120), the other outlet of the first reversing valve (20) is connected to the first end of the third pipeline (130), the second end of the second pipeline (120) is connected to the resin cavity (30) to form the first flow path, and the second end of the third pipeline (130) is connected to the water tank (90) to form the second flow path. The fourth pipeline (140) connects the drain end of the resin chamber (30) to the inlet of the second reversing valve (60) through the fourth pipeline (140); The fifth pipeline (150) has one outlet of the second reversing valve (60) connected to the first end of the fifth pipeline (150), and the second end of the fifth pipeline (150) passes through the housing (10) and is connected to the water tank (80) to form the third flow path; The sixth pipe (160), the seventh pipe (170), and the eighth pipe (180) are connected. The other outlet of the second reversing valve (60) is connected to the third reversing valve (70) through the sixth pipe (160). One outlet of the third reversing valve (70) is connected to the first end of the seventh pipe (170). The other outlet of the third reversing valve (70) is connected to the first end of the eighth pipe (180). The second end of the seventh pipe (170) is connected to the water tank (90) to form the liquid supply flow path. The second end of the eighth pipe (180) is connected to the drain port to form the liquid discharge flow path. The sixth pipe (160), the seventh pipe (170), and the eighth pipe (180) cooperate to form the fourth flow path.

9. The water softening device according to any one of claims 1 to 8, characterized in that, Along the height direction of the housing (10), the drain port is located on one side of the bottom of the inlet; and / or The drain port and the inlet port are located on both sides of the width direction of the housing (10); and / or Along the width direction of the housing (10), the water tank (80) is disposed on one side of the liquid inlet.

10. A dishwasher, characterized in that, include: The body has a water tank (90); The water softening device according to any one of claims 1 to 9, wherein the water softening device is disposed in the body.

Images