Dishwasher water inlet system

Abstract

The present invention discloses a dishwasher water inlet system, comprising: a water inlet chamber, which has a water inlet chamber inlet, a water inlet chamber outlet and a water replenishment port, wherein the water inlet chamber inlet is connected to a water source through a water inlet pipe; a soft water chamber, which has a soft water chamber inlet, a soft water chamber outlet and a salt water replacement port, wherein a softening resin is provided in the soft water chamber, wherein the soft water chamber inlet is connected to the water inlet chamber outlet, and wherein the soft water chamber outlet is connected to an inner tank; and a salt water chamber, which has a salt water chamber inlet and a salt water chamber outlet, wherein the salt water chamber inlet is connected to the water replenishment port, and wherein the salt water chamber outlet is connected to the salt water replacement port. In the dishwasher water inlet system, water from the water source enters the soft water chamber and is softened by the softening resin, thereby solving the technical problem that hard water directly enters the dishwasher for a long time, resulting in scaling of the inner chamber and residue on the surface of tableware. The water softening component has a more compact structure and a smaller volume, and is particularly suitable for small-volume dishwashers such as household dishwashers.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a water inlet system of a dishwasher. Background Art

[0002] As people's living standards improve, they have higher and higher requirements for the quality of life, so dishwashers are gradually recognized and accepted by people. Water softeners are key components of dishwashers. As the name suggests, water softeners are used to soften water. When the hardness of water exceeds 60ppm, it is easy to scale on the inner wall of the dishwasher and the surface of electrical components. As time accumulates, the condensed scale will become thicker and thicker, greatly reducing the life of electrical components. This reduces the washing performance of the dishwasher and the cleanliness of the tableware. Therefore, the water used in the dishwasher needs to be soft water, and the water softener uses resin to adsorb calcium and magnesium ions in the water, and then uses the principle of salt regeneration resin to soften the water.

[0003] In the prior art, the water softener needs to be independently installed in the dishwasher, which results in a complicated structure of the dishwasher and occupies a large installation space. In a household dishwasher or a small dishwasher with limited installation space, a water softener cannot even be installed. Summary of the invention

[0004] In order to solve the technical problem that the water channel assembly structure of the existing dishwasher is not compact and is not suitable for small household dishwashers, the present invention proposes a dishwasher water inlet system that can solve the above problem.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0006] A dishwasher water inlet system, comprising:

[0007] A water inlet chamber, comprising a water inlet chamber inlet, a water inlet chamber outlet and a water replenishment port, wherein the water inlet chamber inlet is connected to a water source through a water inlet pipe;

[0008] A soft water chamber, which has a soft water chamber inlet, a soft water chamber outlet and a brine replacement port, wherein the soft water chamber has a softening resin, the soft water chamber inlet is connected to the water inlet chamber outlet, and the soft water chamber outlet is connected to the inner tank;

[0009] The saline chamber has a saline chamber inlet and a saline chamber outlet, wherein the saline chamber inlet is communicated with the water replenishment port, and the saline chamber outlet is communicated with the saline replacement port.

[0010] Furthermore, an air circuit breaker is arranged in the water inlet cavity, and two ends of the air circuit breaker are respectively connected to the water inlet cavity inlet and the water inlet cavity outlet.

[0011] Furthermore, the air circuit breaker includes a tubular body, which is vertically arranged in the water inlet chamber, and has a tubular cavity that runs through from top to bottom. The top port of the tubular cavity is connected to the inlet of the water inlet chamber, and the bottom port of the tubular cavity is connected to the outlet of the water inlet chamber. An air port connected to the tubular cavity is opened on the body.

[0012] Furthermore, a liquid separating valve is provided in the water flow channel between the water inlet chamber and the soft water chamber, the inlet of the liquid separating valve is connected to the outlet of the water inlet chamber, one of the outlets of the liquid separating valve is connected to the inlet of the soft water chamber, and the other outlet is connected to the inner tank.

[0013] Furthermore, another outlet of the liquid separation valve is connected to the inner tank through a hard water channel, and the soft water chamber outlet is connected to the hard water channel.

[0014] Furthermore, a slow flow chamber is provided between the soft water chamber and the inner tank, the soft water chamber is communicated with the slow flow chamber inlet through a water flow channel, and the slow flow chamber outlet is communicated with the inner tank.

[0015] Furthermore, the water inlet cavity also has an overflow port, and the overflow port is located above the water replenishment port, and the overflow port is connected with the inner tank through an overflow channel.

[0016] Furthermore, the opening position of the overflow port is not lower than the opening position of the brine chamber inlet.

[0017] Furthermore, the water replenishment port is connected to the brine chamber inlet through a water replenishment channel, the water replenishment channel is located below the brine chamber inlet, and a water baffle is provided in the brine chamber above the brine chamber inlet, and the water baffle is inclined.

[0018] Furthermore, a salt water concentration detection alarm device is provided inside or outside the salt water chamber, and the salt water concentration detection alarm device is connected to the controller.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the dishwasher water inlet system of the present invention, by setting a soft water chamber and a salt water chamber, has a softening resin in the soft water chamber, and the water from the water source enters the soft water chamber and is softened by the softening resin, thereby solving the technical problem that hard water directly enters the dishwasher for a long time, causing scaling in the inner cavity and residue on the surface of tableware. At the same time, by setting the salt water chamber, the saturated softening resin can be regenerated. The structure of the water softening component is more compact and the volume is smaller, and it is particularly suitable for small-volume dishwashers such as household dishwashers.

[0020] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the water inlet system of the dishwasher proposed by the present invention;

[0023] Figure 2 yes Figure 1 A-direction sectional view;

[0024] Figure 3 yes Figure 1 B-direction cross-sectional view;

[0025] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional state;

[0026] Figure 5 yes Figure 1 In the structural diagram of the air circuit breaker;

[0027] Figure 6 yes Figure 5 The main view of the medium air circuit breaker;

[0028] Figure 7 yes Figure 6 C-section view. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1: Generally, tap water contains Cl, Ca, Mg and other ions. Due to the presence of such ions, when the hardness of water exceeds 60ppm, it is easy to scale on the inner wall of the dishwasher and the surface of electrical components. As time accumulates, the condensed scale will become thicker and thicker, greatly reducing the life of the electrical components. In addition, the scale is easy to remain on the surface of tableware, reducing the cleanliness of tableware washing. At present, the dishwasher with a water softener has a complex water channel structure and occupies space, and is generally large in size. Based on this, the present invention proposes a dishwasher water inlet system, which can soften water and has a compact water channel layout structure, which is particularly suitable for small household dishwashers. The following embodiment will take a dishwasher including a water inlet system as an example to explain in detail the structural composition and principle of the water inlet system and the dishwasher. Figure 1-Figure 4 As shown, the water inlet system of the dishwasher includes:

[0031] The water inlet chamber 11 has a water inlet chamber inlet 110, a water inlet chamber outlet 111 and a water replenishment port 112. The water inlet chamber inlet 110 is connected to a water source (such as a tap water pipe) through a water inlet pipe;

[0032] The soft water chamber 12 has a soft water chamber inlet, a soft water chamber outlet and a salt water replacement port 122. The soft water chamber 12 has a softening resin (not shown in the figure). The soft water chamber inlet is connected to the water inlet chamber outlet 111, and the soft water chamber outlet is connected to the inner tank.

[0033] The saline chamber 13 has a saline chamber inlet 131 and a saline chamber outlet 132 . The saline chamber inlet 131 is communicated with the water replenishment port 112 , and the saline chamber outlet 132 is communicated with the saline replacement port 122 .

[0034] The water inlet chamber 11 is located above the softening chamber 12, the water inlet chamber inlet 110 is located at the top of the water inlet chamber 11, the water inlet chamber outlet 111 is located at the bottom of the water inlet chamber 11, and a water valve is arranged between the water inlet chamber inlet 110 and the water source. The water valve is controlled by a controller to allow water to enter the water inlet chamber 110. Tap water enters from the water inlet chamber inlet 110, flows downward under the action of the water flow's own gravity, and enters the softening chamber 12 through the water inlet chamber outlet 111. The softening chamber 12 is filled with softening resin or other water softeners that can absorb Cl, Ca, Mg and other ions. The softening resin absorbs Cl, Ca, Mg and other ions in the water, and the softened water after absorption flows into the inner tank of the dishwasher from the softening chamber outlet, that is, the softening resin in the soft water chamber serves to remove Cl, Ca, Mg and other ions in the tap water.

[0035] The brine chamber 13 can be filled with regeneration salt and mixed with water to form brine. Here, edible salt (mainly containing NaCl) is preferred for the convenience of purchase. Of course, the regeneration salt can also be other substances that can wash away Cl, Ca, Mg and other ions on the softener, which is not limited here.

[0036] When the Cl, Ca, Mg and other ions adsorbed by the softening resin tend to be saturated, the adsorption effect of the softening resin will decrease, and the softening resin needs to be reduced and regenerated.

[0037] The tap water in the water inlet chamber 11 enters the brine chamber 13 through the water replenishment port 112 and the brine chamber inlet 131, and is mixed with the regenerated salt put into the brine chamber 13 to form brine. When the adsorption capacity of the softening resin is reduced, the brine can be controlled to enter the soft water chamber 12 from the brine chamber outlet 132 and the brine replacement port 122, and is reduced with the softening resin in the soft water chamber 12 to restore the softening capacity of the resin. The reduced brine is then discharged from the soft water chamber outlet into the inner tank.

[0038] As the brine is discharged into the soft water chamber 12 and consumed by reacting with the softening resin, the brine concentration in the brine chamber 13 decreases and will lose its ability to replace the softening resin. Therefore, a brine concentration detection alarm device is provided on the brine chamber 13 to detect the brine concentration in the brine chamber 13 and to issue an alarm when the brine concentration is lower than a set value. The brine concentration detection alarm device is connected to a controller (not shown in the figure), which is a controller of the dishwasher.

[0039] like Figure 1 As shown, the salt water concentration detection alarm device of this embodiment includes a concentration detection module 151 and an alarm module 152. The concentration detection module 151 is connected to the controller. The concentration detection module 151 can feed back the detected salt water concentration signal to the controller. When the salt water concentration is insufficient, an alarm needs to be issued to the user to remind him to add salt. The concentration detection module 151 can be set inside or outside the salt water chamber 13 according to different detection principles.

[0040] There are many ways to alarm, such as light alarm, buzzer alarm, etc. Since the dishwasher may have other faults or prompts that need to alarm the user, there are many types of alarms. After hearing the alarm prompt, the user needs to check the cause of the alarm, which is very inconvenient to use. Figure 3 As shown, in this embodiment, the alarm module 152 includes an alarm light 1521 and a light guide column 1522. The alarm light 1521 is arranged on the inner side of the salt water chamber 13 and is connected to the controller. The light-emitting surface of the alarm light 1521 faces the light guide column 1522, and the light guide column 1522 extends from the inner surface of the salt water chamber 13 to the outer surface. By using the light guide column 1522 to guide the light out, the alarm light 1521 can be set in a concealed manner, and does not need to be set at a position on the surface of the dishwasher shell that is easily viewed by the user. The setting position is more flexible. The light guide column 1522 extends from the inner surface of the salt water chamber 13 to the outer surface. When the alarm light is on, the light guide column guides the light accordingly. From the outside, the user sees that the light guide column is emitting light. The user can easily determine that the alarm is caused by the lack of salt in the salt water chamber, thereby achieving the purpose of prompting the user quickly and accurately.

[0041] The brine chamber 13 also has a salt adding port 133. When the brine concentration is insufficient, salt is added into the brine chamber through the salt adding port. The salt adding port 133 is provided with a detachable sealing cover 134. The user removes the sealing cover 134 and adds salt into the brine chamber through the salt adding port 133. When salt addition is not needed, the sealing cover 134 is used to block the salt adding port 133 to keep the interior of the brine chamber 13 clean and prevent dust and foreign matter from entering.

[0042] The sealing cover 134 is provided with a through hole, and the light guide column 1522 is arranged in the through hole. By arranging the light guide column on the sealing cover, and the sealing cover is detachably arranged at the salt adding port, it is convenient to assemble the light guide column 1522, and the sealing cover 134 is a part of the salt water chamber 13. When the user sees the light guide column on the sealing cover 134 glowing, it is also easy to judge that the alarm is caused by the lack of salt in the salt water chamber, so as to achieve the purpose of prompting the user quickly and accurately.

[0043] The salt adding port 133 is arranged on the back plate of the salt water chamber 13, and the alarm light 1521 is preferably arranged on the front plate of the salt water chamber 13. The light emitting direction of the alarm light 1521 is backward, that is, the light emitting direction of the alarm light 1521 is toward the light guide column 1522. The side where the light guide column 1522 is located is located on the side of the inner tank. When the alarm sounds, the user opens the dishwasher and the light emitted by the light guide column 1522 is very easy for the user to observe.

[0044] The salt adding port 133 is preferably opened at the upper end of the back plate, and the alarm light 1521 corresponds to the salt adding port. Therefore, the alarm light 1521 is located at the upper end of the back plate to prevent the alarm light 1521 from being splashed with water when water enters the salt water chamber 13, which is beneficial to extending the service life of the alarm light 1521.

[0045] Since brine is often stored in the brine chamber 13, the environment inside the chamber is high in salt and humidity. In order to prevent the alarm light from being corroded in this environment for a long time, a sealed chamber 135 is formed on the inner surface of the front side plate of the brine chamber 13. The alarm light 1521 is arranged in the sealed chamber 135 to isolate the alarm light from the high-salt and high-humidity environment in the brine chamber 13.

[0046] The commonly used concentration detection module 151 uses the principle that the buoyancy of salt water reflects the concentration of salt water. A float is set in the salt water chamber 13, and the concentration of salt water is determined by detecting the position of the float. This detection method is set inside the salt water chamber, which is inconvenient during production and installation. In this embodiment, light detection of salt water concentration is preferably used. The principle that the refractive index of salt water with different concentrations is also different is used. The salt water concentration is determined by injecting light into the salt water chamber and receiving the light refracted by the solution in the salt water chamber. The light detection device can be set outside the salt water chamber, which is easy to assemble and can solve a series of problems caused by the traditional detection device being set inside the salt water chamber. The concentration detection module 151 is connected to the controller, and the detected salt water concentration signal can be fed back to the controller.

[0047] like Figure 1 As shown, the concentration detection module 151 of this embodiment includes a light source 1511 and a photoelectric sensor 1512 respectively connected to the controller, and the photoelectric sensor 1512 is arranged on the optical path of the light source 1511, and the optical path of the light source 1511 passes through the salt water cavity 13. The light emitted by the light source propagates on its optical path, and its optical path passes through the salt water cavity, and after being refracted by the salt water in the salt water cavity, it reaches the photoelectric sensor. The refractive index of salt water of different concentrations is different. According to this principle, the photoelectric sensor can calculate the refractive index of the salt water by detecting the received light flux, and then calculate the concentration of the salt water.

[0048] In the present solution, the photoelectric principle is adopted to detect the concentration of the salt water. Therefore, the detection device does not need to be in direct contact with the salt water and can be arranged outside the salt water chamber 13. A groove is formed on the outer surface of the front panel of the salt water chamber 13. The light source 1511 is fixedly arranged in the groove. The photoelectric sensor 1512 is arranged on one side panel of the salt water chamber 13, and the photosensitive surface of the photoelectric sensor 1512 faces the light source 1511, ensuring that the photoelectric sensor 1512 is located on the light path of the light source 1511, and that the light path at least partially passes through the inner cavity of the salt water chamber.

[0049] In order to improve the prominence of the luminous alarm, it is preferred that there are two or more light guide columns 1522, and the sealing cover 134 is provided with through holes corresponding to the light guide columns 1522, and the light guide columns 1522 are arranged in the corresponding through holes. The light guide columns 1522 can be sealed in the through holes by means of sealant, sealing rings, etc., one end of which reaches the inner cavity of the salt water cavity 13, and the other end reaches the outer surface of the salt water cavity. Therefore, the light emitted by the alarm light 1521 can be smoothly guided out to be observed by the user. By increasing the number of light guide columns 1522, its recognition can be improved and it is easier for the user to observe. The present invention does not limit the number of light guide columns, and its number can be selected according to actual needs, or arranged according to a certain graphic pattern, all of which belong to the protection scope of this patent.

[0050] In this embodiment, there is no need to set a solenoid valve between the salt water chamber inlet 131 and the water replenishment port 112, that is, there is no need to control the water replenishment of the salt water chamber 13 specifically. A part of the water entering the water inlet chamber 11 from the tap water pipe enters the salt water chamber 13 through the water replenishment port 112 to replenish it. That is, as long as water is injected into the soft water chamber, a part of the water will flow into the salt water chamber for water replenishment. There is no need to set a solenoid valve specifically for the water replenishment channel of the salt water chamber to actively replenish water under specific circumstances, which is beneficial to saving device costs. This solution adopts a passive water replenishment method and brings another Another problem is that the amount of water entering the brine chamber 13 cannot be controlled. After the brine chamber 13 is filled, when water continues to be injected into the soft water chamber 12 through the water inlet chamber 11, part of the splashed water needs to be discharged in time. Therefore, in this solution, the water inlet chamber 11 also has an overflow port 113, and the overflow port 113 is located above the water replenishment port 112. By arranging the overflow port 113 above the water replenishment port 112, it is ensured that part of the water in the water inlet chamber 11 first enters the brine chamber 13 through the water replenishment port 112 to replenish the brine chamber with water. When the brine chamber is full, the water level rises and then is discharged through the overflow port 113.

[0051] The opening position of the overflow port 113 should not be lower than the opening position of the brine chamber inlet 131, according to the communicating vessel principle, to prevent the brine inside the brine chamber 13 from being discharged through the overflow port or the brine chamber from being unable to be filled.

[0052] In order to improve the capacity of collecting overflow water, the overflow port 113 is connected with the inner tank through the overflow channel 17. The overflow channel 17 extends downward from the overflow port 113. A connecting port connected with the inner tank is opened at the bottom of the overflow channel 17. When the brine chamber 13 is filled, the water level in the water inlet chamber 11 rises until it reaches the overflow port 113 and enters the overflow channel 17 through the overflow port 113. Since the overflow channel 17 extends downward from the overflow port 113, it has a certain capacity to accommodate overflow water, thereby reducing the impact of the overflow water on the inner tank when entering the inner tank.

[0053] In order to mitigate the impact of water entering the overflow channel through the overflow port 112 , a water retaining rib 171 is preferably formed on the inner wall of the overflow channel 17 .

[0054] The working process of the softening resin in the soft water chamber 12 is multiple cycles of adsorption-regeneration. Since the regeneration process cannot be completely thorough, the softening resin also has a service life. In order to extend the service life of the softening resin, a liquid separation valve 18 is provided between the soft water chamber entrance and the water inlet chamber 11. The entrance of the liquid separation valve 18 is connected to the water inlet chamber outlet 111. One of the outlets of the liquid separation valve 18 is connected to the entrance of the soft water chamber, and the other outlet is connected to the hard water channel 19. The hard water channel 19 is connected to the inner tank. The liquid separation valve 18 can control the switching of the two passages of the water inlet chamber 11-inner tank and the water inlet chamber 11-soft water chamber 12-inner tank. By controlling the water inlet chamber 11-inner tank passage to be connected when washing dishes, the dishes are washed with tap water, and controlling the water inlet chamber 11-soft water chamber 12-inner tank passage to be connected when rinsing, the dishes are rinsed with soft water. This can not only solve the technical problems of hard water scaling and tableware residue, but also reduce the frequency of use of the softening resin and extend the service life of the softening resin.

[0055] In order to improve the compactness of the layout of the water system and reduce the space occupied by the water system, it is preferred that the outlet of the soft water chamber is connected to the hard water channel 19, that is, the water coming out of the liquid separator valve 18 is conducted in one path as needed, one of which does not need to be softened and directly enters the inner tank from the hard water channel 19, and the other is softened in the soft water chamber 12 before entering the hard water channel 19 and being discharged into the inner tank, thereby improving the utilization rate of the hard water channel 19. In addition, a valve structure (such as a one-way valve) needs to be set between the hard water channel 19 and the outlet of the soft water chamber to prevent hard water from flowing back from the outlet of the soft water chamber into the soft water chamber 12.

[0056] The water replenishment port 112 is connected to the brine chamber inlet 131 through the water replenishment channel 20, and the water replenishment channel 20 is located below the brine chamber inlet 131. It can be seen that the space can be fully and reasonably utilized, so that the layout of each structure is more compact, especially suitable for small dishwashers such as household dishwashers. A water baffle 136 is arranged above the brine chamber inlet 131 in the brine chamber 13. The water baffle 136 is inclined. The water baffle 136 serves to stop the water entering the brine chamber 13. Since the water replenishment channel 20 is located below the brine chamber inlet 131, the water inlet direction of the brine chamber 13 is upward. In order to prevent the incoming water from splashing toward the top of the brine chamber, the water baffle 136 stops the incoming water, so that the incoming water is stopped by the water baffle 136 and then flows downward under the action of gravity, which can effectively alleviate the impact of the water pressure.

[0057] Since water is a liquid, it can flow freely to the connected places as the water pressure is unbalanced. In order to prevent the salt water in the salt water chamber 13 from entering the water inlet chamber 11 through the water replenishment channel 20 and then directly entering the inner tank through the overflow port 113, it is preferred to provide a filter membrane 21 in the water replenishment channel 20. The filter membrane 21 allows water molecules to pass through, but prevents NaCl molecules from passing through, thereby avoiding the above-mentioned problem. Of course, the present solution is not limited to the use of filter membranes, and other filtering devices can also be used for implementation.

[0058] A solenoid valve 22 is provided between the brine chamber outlet 132 and the brine replacement port 122, and the solenoid valve 22 is connected to the controller. When the adsorption capacity of the softening resin decreases, the solenoid valve 22 can be controlled to open, so that the soft water chamber 12 is connected to the brine chamber 13, and the brine enters the soft water chamber 12 to perform reduction treatment with the softening resin to restore the softening capacity of the resin, and the reduced brine is discharged from the soft water outlet. When reduction is not required, the solenoid valve is closed to cut off the soft water chamber 12 from the brine chamber 13.

[0059] In order to prevent the softened water in the soft water chamber 12 from flowing back into the water inlet chamber 11 , a one-way valve 23 is preferably provided at the water inlet chamber outlet 111 .

[0060] In order to reduce the impact force of water entering the inner tank, a slow flow chamber 24 is provided between the soft water chamber 12 and the inner tank, the soft water chamber 12 is connected to the inlet of the slow flow chamber 24 through the hard water channel 19, and the outlet of the slow flow chamber 24 is connected to the inner tank. When unsoftened water enters the inner tank through the hard water channel 19, the slow flow chamber 24 can also play a role in slowing down the flow.

[0061] In order to save the space occupied by the waterway, the hard water channel 19 starts from one side of the water inlet chamber 11 and the soft water chamber 12, extends upward along one side of the soft water chamber 12, and makes a 90° turn when extending to the top of the soft water chamber 12, and extends to the other side of the soft water chamber 12. The slow flow chamber 24 is located on the other side of the water inlet chamber 11. When the hard water channel 19 extends to the top of the slow flow chamber 24, it makes a 90° downward turn. The entrance of the slow flow chamber 24 is located at the top of the slow flow chamber. The hard water channel 19 is connected with the entrance of the slow flow chamber 24. Therefore, the water inlet direction of the slow flow chamber is downward. When the water enters, it will be affected by the water pressure and the gravity of the water itself. In order to reduce the impact force of the water entering the slow flow chamber 24, and further reduce the impact force of the water entering the inner tank through the slow flow chamber 24, a slow flow baffle 16 is arranged in the slow flow chamber 24. The slow flow baffle 16 is located below the entrance of the slow flow chamber and is tilted downward. The slow flow baffle 16 buffers the incoming water and then guides it downward, and finally enters the inner tank through the outlet.

[0062] In order to expel the bubbles mixed in the tap water, the water pressure is adjusted so that the water quickly passes through the water inlet chamber 11 and the soft water chamber 12 in sequence. Preferably, an air circuit breaker 14 is provided in the water inlet chamber 11, and the two ends of the air circuit breaker 14 are respectively connected to the water inlet chamber inlet 110 and the water inlet chamber outlet 111.

[0063] like Figure 4-Figure 7 As shown, the air circuit breaker 14 includes a tubular body 141, and the body 141 has a tube cavity 142 that is connected from top to bottom. The top port of the tube cavity 142 is a water inlet 142a, and the bottom port of the tube cavity 142 is a water outlet 142b. One side of the body 141 is provided with an air port 143 that is connected to the tube cavity 142. The air circuit breaker in this embodiment is mainly used in a water flow channel, and its function is to discharge bubbles in the water flow. When in use, the air circuit breaker 14 is vertically arranged in the water inlet cavity 11, so that the water entering the tube cavity 142 flows downward under the action of its own gravity, and at the same time, when flowing through the air port 143, the bubbles are discharged. Therefore, the water flowing in the water flow channel at the rear end of the air circuit breaker (such as between the water inlet cavity 11 and the soft water cavity 12) no longer contains bubbles, which can avoid the noise caused by the collision of bubbles with the pipeline, and at the same time, it can prevent bubbles from blocking the water from flowing in the water flow channel.

[0064] The tube cavity 142 includes an upper cavity 1421 located above the air port 143 and a lower cavity 1422 located below the air port 143, and the upper cavity 1421 and the lower cavity 1422 are located on the same vertical axis. Since the air circuit breaker is vertically arranged when in use, the water passing through the upper cavity 1421 flows through the air port 143 to discharge the air, and then, under the action of water pressure and gravity, the water quickly flows into the lower cavity 1422 and then flows out through the water outlet 142b.

[0065] The inner diameter of the upper cavity 1421 is larger at the top and smaller at the bottom, and the transition is smooth from the top to the bottom, forming a funnel shape. The inner diameter of the lower cavity 1422 is smaller at the top and larger at the bottom, and the transition is smooth from the top to the bottom, forming an inverted funnel shape. The center axis of the lower port of the upper cavity 1421 coincides with the upper port of the lower cavity 1422.

[0066] In order to allow the water passing through the upper cavity 1421 to quickly flow into the lower cavity 1422 , it is preferred that the projections of the lower port of the upper cavity 1421 and the upper port of the lower cavity 1422 in the vertical direction coincide with each other.

[0067] In order to facilitate the assembly of the air circuit breaker in the water flow channel of the dishwasher, the top of the main body 141 has an outwardly folded outer flange 144, and the outer surface of the main body 141 is located below the outer flange 144. A circle of annular steps 145 are formed, and a circle of closed first grooves 146 are formed between the annular steps 145 and the outer flange 144. During assembly, the external clip-on structure that cooperates with it is inserted into the first groove 146 to fix the upper end of the air circuit breaker. An O-ring can be set in the first groove 146 to achieve the sealing effect of the water channel.

[0068] In order to improve the stability of the air circuit breaker 14 during assembly and prevent it from being tilted and unable to maintain an upright setting due to long-term impact of water flow, it is preferably formed with at least one circle of second grooves 147 for accommodating a sealing ring along the outer circumferential direction at the bottom of the main body 141. During assembly, the external clip-on structure that cooperates with it is inserted into the second groove 147 to fix the lower end of the air circuit breaker. An O-ring can be set in the second groove 147 to achieve sealing of the water channel.

[0069] When the air circuit breaker 14 is assembled in the dishwasher, due to the limited internal space of the dishwasher, one or more sides of the air circuit breaker may be closely adjacent to the waterway plate. In order to prevent the air circuit breaker from rotating in an incorrect position and causing the air port to be blocked by the waterway plate wall, it is preferred that there are two air ports, which are symmetrically opened on both sides of the body 141, to ensure effective exhaust in various situations.

[0070] In order to improve the strength of the air circuit breaker 14 so that it can withstand the impact of water flow for a long time without being deformed, it is preferred that a plurality of reinforcing ribs 148 are formed on the outer surface of the body 141 along its length direction.

[0071] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A dishwasher water inlet system, characterized in that: include: A water inlet chamber, comprising a water inlet chamber inlet, a water inlet chamber outlet and a water replenishment port, wherein the water inlet chamber inlet is connected to a water source through a water inlet pipe; A soft water chamber, which has a soft water chamber inlet, a soft water chamber outlet and a brine replacement port, wherein the soft water chamber has a softening resin, the soft water chamber inlet is connected to the water inlet chamber outlet, and the soft water chamber outlet is connected to the inner tank; A saline chamber, comprising a saline chamber inlet and a saline chamber outlet, wherein the saline chamber inlet is connected to the water replenishment port, and the saline chamber outlet is connected to the saline replacement port; An air circuit breaker is arranged in the water inlet cavity, and two ends of the air circuit breaker are respectively connected with the water inlet cavity inlet and the water inlet cavity outlet; The air circuit breaker includes a tubular body, which is vertically arranged in the water inlet cavity. The body has a tubular cavity that penetrates from top to bottom, the top port of the tubular cavity is connected to the inlet of the water inlet cavity, and the bottom port of the tubular cavity is connected to the outlet of the water inlet cavity. The body is provided with an air port that communicates with the tubular cavity.

2. The dishwasher water inlet system according to claim 1, characterized in that: A liquid separation valve is provided in the water flow channel between the water inlet chamber and the soft water chamber, the inlet of the liquid separation valve is connected to the outlet of the water inlet chamber, one outlet of the liquid separation valve is connected to the inlet of the soft water chamber, and the other outlet is connected to the inner tank.

3. The dishwasher water inlet system according to claim 2, characterized in that: Another outlet of the liquid separation valve is communicated with the inner tank through a hard water channel, and the soft water chamber outlet is communicated with the hard water channel.

4. The dishwasher water inlet system according to claim 1, characterized in that: A slow flow chamber is arranged between the soft water chamber and the inner tank. The soft water chamber is communicated with the slow flow chamber inlet through a water flow channel, and the slow flow chamber outlet is communicated with the inner tank.

5. The dishwasher water inlet system according to claim 1, characterized in that: The water inlet cavity also has an overflow port, which is located above the water replenishment port and is connected to the inner tank through an overflow channel.

6. The dishwasher water inlet system according to claim 5, characterized in that: The opening position of the overflow port is not lower than the opening position of the brine chamber inlet.

7. The dishwasher water inlet system according to any one of claims 1 to 6, characterized in that: The water replenishment port is connected with the brine chamber inlet through a water replenishment channel, the water replenishment channel is located below the brine chamber inlet, and a water baffle is arranged above the brine chamber inlet in the brine chamber, and the water baffle is arranged obliquely.

8. The dishwasher water inlet system according to any one of claims 1 to 6, characterized in that: A salt water concentration detection alarm device is arranged inside or outside the salt water chamber, and the salt water concentration detection alarm device is connected to the controller.

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