Dishwasher

Abstract

The dish-washing machine comprises a washing inner container and a dish-washing machine body, a first water outlet of the water tank is communicated with a water inlet of the washing liner; liquid in the water tank is discharged to a water inlet of the washing liner through a first water outlet of the water tank; the heating device is used for increasing the temperature of the water tank. The dish-washing machine improves the use environmental protection property of the dish-washing machine.

Description

Technical Field

[0001] This application relates to the field of dishwashing equipment technology, and in particular to a dishwasher. Background Technology

[0002] As people's living standards improve, dishwashers are widely used. Most dishwashers nowadays have a disinfection function. However, when using disinfectant, the inner tub of the dishwasher is not sealed, so harmful substances in the disinfectant may evaporate into the external environment, resulting in a low level of environmental friendliness in dishwasher use. Utility Model Content

[0003] Therefore, it is necessary to provide a dishwasher that improves environmental friendliness in order to address the above problems.

[0004] A dishwasher, the dishwasher comprising:

[0005] Wash the inner tank;

[0006] A water tank, wherein the first outlet of the water tank is connected to the inlet of the washing inner tank; the liquid in the water tank is discharged to the inlet of the washing inner tank through the first outlet of the water tank.

[0007] A heating device is used to increase the temperature of the water tank.

[0008] The dishwasher includes: a washing tub; a water tank, wherein a first outlet of the water tank is connected to the inlet of the washing tub; liquid in the water tank is discharged to the inlet of the washing tub through the first outlet of the water tank; and a heating device for raising the temperature of the water tank. When the disinfectant solution is prepared, the disinfectant solution is stored in the water tank. The heating device raises the temperature of the water tank so that the oxidant in the disinfectant solution stored in the water tank is decomposed by heat, thereby reducing the oxidant, i.e., harmful substances, in the disinfectant solution in the water tank. The heated disinfectant solution is discharged to the inlet of the washing tub through the first outlet of the water tank, thereby reducing the harmful substances volatilized into the external environment during the disinfection of tableware by the washing tub, and improving the environmental friendliness of the dishwasher.

[0009] In one embodiment, the heating device includes a heating element for increasing the temperature of the gas inside the water tank.

[0010] In this way, the temperature of the gas inside the water tank can be increased by a simpler heating device, thereby increasing the temperature inside the water tank. This reduces the heating cost of the water tank, and the heating device can be deployed inside the water tank, which also reduces the footprint of the dishwasher and improves its ease of use.

[0011] In one embodiment, the heating device is disposed on the air inlet pipe of the water tank.

[0012] In this way, the heating device heats the gas waiting to enter the water tank through the air inlet pipe. After the heated gas enters the water tank through the air inlet pipe, it can mix with the disinfectant stored in the water tank, so that the oxidant in the disinfectant stored in the water tank is decomposed by heat, thereby reducing the oxidant in the disinfectant in the water tank.

[0013] In one embodiment, the heating device is located on top of the water tank.

[0014] Since the gas in the water tank is usually at the top, the heating device is placed at the top of the water tank to ensure that the heating device can heat the gas already in the water tank. The heated gas in the water tank can then mix with the disinfectant stored in the water tank, causing the oxidant in the disinfectant stored in the water tank to decompose due to heat, thereby reducing the oxidant in the disinfectant in the water tank.

[0015] In one embodiment, the dishwasher further includes a first fan disposed on the air intake duct of the water tank.

[0016] In this way, the first fan can ensure that external air flows to the water tank through the air intake pipe.

[0017] In one embodiment, the dishwasher further includes a second fan disposed on the air outlet duct of the water tank.

[0018] In this way, the second fan allows the gas inside the water tank to circulate to the washing tank.

[0019] In one embodiment, the dishwasher further includes a first check valve disposed on the air inlet pipe of the water tank; and / or a second check valve disposed on the air outlet pipe of the water tank.

[0020] Thus, the opening and closing of the flow channel between the external air and the water tank can be controlled by the first one-way valve, and the opening and closing of the flow channel for the air in the water tank to flow into the washing inner tank can be controlled by the second one-way valve.

[0021] In one embodiment, the dishwasher further includes a temperature sensor for detecting the temperature of the gas inside the water tank.

[0022] In this way, the temperature sensor can be linked with the heating device for control, thereby ensuring that the temperature of the gas in the water tank 100 meets the expectations.

[0023] In one embodiment, the dishwasher further includes a disinfectant preparation device, an ozone concentration detector, and a first water pump. The disinfectant preparation device includes a power supply and a discharge electrode and a ground electrode connected to the power supply. The discharge electrode and the ground electrode are inserted into the water stored in the water tank.

[0024] The ozone concentration detector is used to detect the ozone concentration in the water tank;

[0025] The first water pump is located between the first outlet of the water tank and the inlet of the washing tank, and is used to pump the liquid in the water tank to the washing tank. The first water pump is turned on when the disinfectant is prepared and the ozone concentration in the water tank is detected to be less than or equal to a preset concentration threshold.

[0026] Thus, on the one hand, the disinfectant preparation device built into the water tank enables the preparation of disinfectant without relying on an external disinfectant storage device for replenishment. This allows the dishwasher to achieve self-sufficiency in disinfectant, simplifying the disinfectant storage device and reducing the disinfectant preparation cost. Furthermore, the disinfectant preparation device can be deployed inside the water tank, thus reducing the overall footprint of the dishwasher and improving its ease of use. On the other hand, the linkage control between the ozone concentration detector and the first water pump ensures that the ozone concentration of the disinfectant pumped from the water tank to the washing tub is low, thereby reducing the amount of ozone volatilized into the external environment during the disinfection of tableware in the washing tub.

[0027] In one embodiment, the dishwasher further includes a humidity sensor for detecting the humidity in the water tank; the power supply is turned on when the humidity in the water tank is less than a preset humidity threshold.

[0028] In this way, through the linkage control of the humidity sensor and the power supply, the humidity in the water tank is kept below the preset humidity threshold. That is, the environment inside the water tank is relatively dry. At this time, the water tank is not prone to dampness. Therefore, condensation is not likely to occur on the discharge electrode or grounding electrode. When the power is turned on, the disinfectant is prepared, thus ensuring the discharge efficiency of the discharge electrode and the grounding electrode, and thus ensuring the preparation efficiency of the disinfectant.

[0029] In one embodiment, the dishwasher further includes a second water pump, and the second outlet of the water tank is connected to the external environment through the second water pump.

[0030] In this way, the opening and closing of the flow channel for the liquid stored in the water tank to be discharged to the external environment can be controlled by the second water pump. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural block diagram of a dishwasher in one embodiment;

[0033] Figure 2 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes a heating device.

[0034] Figure 3 This is a schematic diagram showing the connection between the dishwasher and the water tank in another embodiment, where the dishwasher includes a heating device;

[0035] Figure 4 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes a first fan.

[0036] Figure 5 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes a second fan.

[0037] Figure 6 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes a disinfectant preparation device.

[0038] Figure 7 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes a glass tube.

[0039] Figure 8 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes a humidity sensor.

[0040] Figure 9 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes an ozone concentration detector and a first water pump.

[0041] Figure 10 This is a schematic diagram of the connection between the dishwasher and the water tank when the dishwasher includes a second water pump in one embodiment;

[0042] Figure 11 This is a schematic diagram showing the connection between the dishwasher and the water tank in one embodiment, where the dishwasher includes a temperature sensor.

[0043] Figure 12 This is a structural block diagram of a dishwasher in another embodiment. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0045] In one embodiment, a dishwasher is provided. Figure 1 As shown, the dishwasher includes a water tank 100, a heating device 200, and a washing tub 300, with the water inlet of the washing tub 300 connected to the first water outlet of the water tank 100.

[0046] The heating device 200 is used to increase the temperature of the water tank 100.

[0047] The specific implementation of the heating device 200 is not limited. As one embodiment, the heating device 200 is completely wrapped around the outside of the water tank 100 to increase the temperature inside the water tank 100.

[0048] Furthermore, the heating device 200 may include a water storage tank, and the size of the water storage tank of the heating device 200 is larger than the size of the water tank 100. The water storage tank stores hot water. The temperature of the hot water in the water storage tank is higher than the temperature inside the water tank 100.

[0049] In this way, the heat of the hot water in the storage tank is transferred to the water tank 100 through heat transfer, thereby increasing the temperature inside the water tank 100.

[0050] As one embodiment, the exterior of the water tank 100 is made of a heat-conducting material.

[0051] This allows more heat from the hot water in the storage tank to be transferred to the water tank 100, thereby increasing the temperature inside the water tank 100.

[0052] As another embodiment, the heating device 200 may also include a hot water pipe connected to the water tank 100.

[0053] In this way, hot water can be introduced into the water tank 100 through the hot water pipe to increase the water temperature in the water tank 100.

[0054] In another embodiment, the heating device 200 includes a heating device 210 disposed inside the water tank 100 for raising the temperature of the gas inside the water tank 100.

[0055] In this way, by using a simpler heating device 210 compared to a water storage tank and hot water pipes to increase the temperature of the gas inside the water tank 100, the temperature inside the water tank 100 is increased, reducing the heating cost of the water tank 100. Furthermore, the heating device 210 can be deployed inside the water tank 100, thus reducing the footprint of the dishwasher and improving its ease of use.

[0056] The location of the heating device 210 can be configured as needed. As one embodiment, refer to... Figure 2 The heating device 210 is installed on the air inlet pipe of the water tank 100.

[0057] In this way, the heating device heats the gas waiting to enter the water tank through the air inlet pipe. After the heated gas enters the water tank through the air inlet pipe, it can mix with the disinfectant stored in the water tank, so that the oxidant in the disinfectant stored in the water tank is decomposed by heat, thereby reducing the oxidant, that is, harmful substances, in the disinfectant in the water tank.

[0058] The air inlet pipe of the water tank 100 is connected to the external environment to enable gas flow between the water tank 100 and the external environment.

[0059] Since the water tank 100 in the dishwasher protected by this application will undergo a heating process, and the gas inside the water tank 100 will expand after being heated, in order to avoid the water tank 100 from deforming or even exploding due to the expansion of the gas inside the water tank 100 after being heated, an air intake pipe is usually installed in the water tank 100 to ensure that the air can still circulate normally when the water tank 100 is heated, thereby ensuring the safety of the water tank 100 in use.

[0060] As another embodiment, refer to Figure 3 The heating device 210 is located on top of the water tank 100.

[0061] Thus, since the gas in the water tank 100 is usually at the top, the heating device 210 is placed at the top of the water tank 100 to ensure that the heating device 210 can heat the gas already in the water tank 100. The heated gas in the water tank 100 can mix with the disinfectant stored in the water tank, so that the oxidant in the disinfectant stored in the water tank 100 is decomposed by heat, thereby reducing the oxidant in the disinfectant in the water tank 100.

[0062] The specific implementation of the heating device 210 is not limited. As one embodiment, the heating device 210 is a PTC (Positive Temperature Coefficient) thermistor.

[0063] As one embodiment, the water tank 100 is used to store the disinfectant solution required for the washing inner tank 300 to disinfect tableware.

[0064] The specific source of the disinfectant is not limited. As one embodiment, the water inlet of the water tank 100 is connected to the disinfectant storage device through a water inlet valve. The water inlet valve is opened when the dish sterilization function of the dishwasher is turned on, and the disinfectant stored in the disinfectant storage device is discharged into the water tank 100 through the water inlet.

[0065] In this way, the disinfectant stored externally is transferred into the water tank 100, allowing the disinfectant to decompose under heat within the water tank 100, thereby reducing the oxidant in the disinfectant within the water tank 100.

[0066] In another embodiment, the dishwasher also includes a disinfectant preparation device, which is placed inside the water tank 100. The water inlet of the water tank 100 is connected to the water storage device through a water inlet valve. The water inlet valve is opened when the dishwasher's tableware disinfection function is turned on. The water stored in the water storage device is discharged into the water tank 100 through the water inlet. The water tank 100 is used to store the water discharged from the water inlet of the water tank 100.

[0067] In this way, water stored externally is transferred to the water tank 100, allowing the water in the water tank 100 to react with the disinfectant preparation device to prepare disinfectant. This eliminates the need to rely on an external disinfectant storage device for replenishment, enabling the dishwasher to be self-sufficient in disinfectant. This simplifies the disinfectant storage device and reduces the disinfectant preparation cost of the dishwasher. Furthermore, the disinfectant preparation device can be deployed inside the water tank, thus reducing the overall footprint of the dishwasher and improving its ease of use.

[0068] As another embodiment, the water tank 100 is used for the above-mentioned disinfectant solution after being heated.

[0069] The liquid stored in the water tank 100 (including but not limited to the water, disinfectant and disinfectant after being heated) is discharged to the inlet of the washing inner tank 300 through the first outlet of the water tank 100.

[0070] In this embodiment, the dishwasher includes: a washing inner tank 300; a water tank 100, the first outlet of the water tank 100 being connected to the inlet of the washing inner tank 300; liquid in the water tank 100 being discharged to the inlet of the washing inner tank 300 through the first outlet of the water tank 100; and a heating device 200 for raising the temperature of the water tank 100. When the disinfectant is prepared, the disinfectant is stored in the water tank 100. The heating device 200 raises the temperature of the water tank so that the oxidant in the disinfectant stored in the water tank 100 is decomposed by heat, thereby reducing the oxidant, i.e., harmful substances, in the disinfectant in the water tank 100. The heated disinfectant is discharged to the inlet of the washing inner tank 300 through the first outlet of the water tank 100, thereby reducing the harmful substances volatilized into the external environment during the process of disinfecting tableware with disinfectant in the washing inner tank 300, and improving the environmental friendliness of the dishwasher.

[0071] As an example, refer to Figure 4 The dishwasher also includes a first fan located on the air intake duct of the water tank 100.

[0072] In this way, the first fan can ensure that external air flows to the water tank 100 through the air intake pipe.

[0073] As one embodiment, the first fan is used to control the flow rate of external gas through the air inlet pipe to the water tank 100. Specifically, the higher the operating wind speed of the first fan, the faster the external gas flows through the air inlet pipe to the water tank 100.

[0074] As an example, refer to Figure 5 The dishwasher also includes a second fan 10 located on the air outlet pipe of the water tank 100.

[0075] The air outlet pipe of the water tank 100 is connected to the air inlet of the washing inner tank 300.

[0076] In this way, the air inside the water tank 100 can be discharged to the washing inner tank 300 through the air outlet pipe of the water tank 100.

[0077] In this way, the second fan 10 can allow the gas inside the water tank 100 to flow to the washing inner tank 300 through the air outlet pipe of the water tank 100.

[0078] As one embodiment, the second fan 10 is turned on when the tableware is disinfected with disinfectant in the washing tank 300.

[0079] In this way, the gas heated by the heating device 210 deployed inside the water tank 100 can circulate to the washing inner tank 300. On the one hand, this allows the washing inner tank 300 to dry as soon as possible after the tableware is disinfected. On the other hand, it also allows the residual disinfectant in the washing inner tank 300 to be decomposed by heat after the tableware is disinfected.

[0080] As one embodiment, the second fan 10 is used to control the flow rate of gas inside the water tank 100 through the air outlet pipe of the water tank 100 to the washing inner tank 300. Specifically, the higher the operating wind speed of the second fan 10, the faster the gas inside the water tank 100 flows to the washing inner tank 300 through the air outlet pipe of the water tank 100.

[0081] As an example, refer to Figure 6 The dishwasher also includes a disinfectant preparation device, which includes a power supply 30 and a discharge electrode 40 and a grounding electrode 50 connected to the power supply 30. The discharge electrode 40 and the grounding electrode 50 are inserted into the water stored in the water tank 100 to form a closed circuit.

[0082] Among them, power supply 30 is used to provide high-frequency high-voltage alternating voltage;

[0083] When the power supply 30 is turned on, the discharge electrons generated from the position adjacent to the discharge electrode 40 react with the air in the water tank 100 and the water stored in the water tank 100 to obtain disinfectant.

[0084] In this way, disinfectant can be prepared in the water tank 100, eliminating the need for users to replenish the disinfectant themselves or to add a disinfectant storage device to replenish it, thus improving the convenience of using the dishwasher.

[0085] It is understandable that, due to the distance limitation for the reaction of discharged electrons, as an example, refer to... Figure 7 The dishwasher also includes a glass tube 60, which is completely wrapped around the discharge electrode 40.

[0086] In this way, as many discharge electrons as possible can react with the air in the glass tube and the water stored in the water tank 100, thereby improving the efficiency of disinfectant preparation.

[0087] In yet another embodiment, the glass tube 60 includes a plurality of holes.

[0088] This ensures that as many discharge electrons as possible have a larger contact area with air and water in the glass tube, further improving the efficiency of disinfectant preparation.

[0089] Understandably, when the dishwasher is not performing a sterilization function, it is necessary to keep the water tank dry in order to prepare the disinfectant solution later.

[0090] As an example, refer to Figure 8 The dishwasher also includes a humidity sensor 70, which is disposed adjacent to the inner wall of the water tank 100 and is used to detect the humidity inside the water tank 100.

[0091] In this way, the water tank 100 can be dried in time before the disinfectant is prepared, if the humidity in the water tank 100 does not meet the requirements.

[0092] It is understandable that when the environment inside the water tank 100 is relatively humid, moisture may easily occur, resulting in condensation on the discharge electrode 40 and / or the grounding electrode 50. If condensation occurs on the discharge electrode 40 and / or the grounding electrode 50 during the disinfectant preparation process, the discharge efficiency will be low, affecting the disinfectant preparation efficiency.

[0093] As one embodiment, the power supply 30 is turned on when the humidity in the water tank 100 is less than a preset humidity threshold.

[0094] Thus, when the humidity inside the water tank 100 is less than the preset humidity threshold, that is, when the environment inside the water tank 100 is relatively dry, the water tank 100 is less likely to experience dampness. Therefore, condensation is less likely to occur on the discharge electrode 40 or the grounding electrode 50. The power supply 30 is then turned on to prepare the disinfectant, thereby ensuring the efficiency of disinfectant preparation.

[0095] It is understandable that the disinfectant prepared by the above-mentioned disinfectant preparation device contains, but is not limited to, ozone, hydrogen peroxide, etc. Since ozone is insoluble in water, the ozone in the disinfectant is more likely to volatilize into the environment.

[0096] As an example, refer to Figure 9 The dishwasher also includes an ozone concentration detector 80 and a first water pump 90. The ozone concentration detector 80 is used to detect the ozone concentration in the water tank 100. The first water pump 90 is located between the first water outlet of the water tank 100 and the water inlet of the washing tank 300, and is used to pump the liquid in the water tank 100 to the washing tank 300. The first water pump 90 is turned on when the disinfectant is prepared and the ozone concentration in the water tank 100 is less than or equal to a preset concentration threshold.

[0097] Thus, when the disinfectant solution is prepared and the ozone concentration in the water tank 100 is detected to be less than or equal to the preset concentration threshold, that is, when the ozone concentration of the disinfectant solution stored in the water tank 100 is low, the first water pump 90 is turned on. At this time, the disinfectant solution with a low ozone concentration stored in the water tank 100 can be pumped to the washing inner tank 300 by the first water pump 90, thereby reducing the ozone volatilized into the external environment during the process of disinfecting tableware in the washing inner tank 300, and improving the environmental friendliness of the dishwasher.

[0098] As one embodiment, the ozone concentration detector 80 is installed on the gas outlet pipe that is connected to the top of the water tank 100.

[0099] In this way, the concentration of ozone emitted from the disinfectant stored in the water tank 100 can be detected.

[0100] In another embodiment, the ozone concentration detector 80 is located on top of the water tank 100.

[0101] Thus, compared to the ozone concentration detector located on the gas outlet pipe, the ozone concentration detector 80 is closer to the disinfectant stored in the water tank 100, thereby enabling more accurate detection of the ozone concentration emitted by the disinfectant stored in the water tank 100.

[0102] As an example, refer to Figure 10 The dishwasher also includes a second water pump 110, and the second outlet of the water tank 100 is connected to the external environment through the second water pump 110.

[0103] Furthermore, the second water pump 110 is activated when the tableware is disinfected with disinfectant in the washing tank 300.

[0104] Thus, when the inner tank 300 has finished disinfecting the tableware with disinfectant, the liquid in the water tank 100 is discharged to the external environment through the second outlet of the water tank 100 by the second water pump 110, thereby further ensuring that the water tank 100 is in a dry environment before the next disinfectant preparation.

[0105] It is understandable that the oxidizing agents in disinfectants include, but are not limited to, ozone and hydrogen peroxide. Both ozone and hydrogen peroxide can be decomposed by heat, but the minimum temperature required for the decomposition of ozone is lower than that required for hydrogen peroxide.

[0106] As an example, the temperature of the water tank 100 when the disinfectant solution is prepared is greater than or equal to the minimum temperature required for ozone decomposition.

[0107] This ensures that the ozone in the disinfectant stored in the water tank 100 can be accurately decomposed by heat.

[0108] In another embodiment, the temperature of the water tank 100 when the disinfectant solution is prepared is lower than the minimum temperature required for the decomposition of hydrogen peroxide.

[0109] This ensures that the hydrogen peroxide in the disinfectant stored in the water tank 100 will not decompose due to heat, thus guaranteeing the disinfection effect of the disinfectant.

[0110] In another embodiment, the temperature of the water tank 100 when the tableware is disinfected with disinfectant in the washing inner tank 300 is higher than the temperature of the water tank 100 when the disinfectant is prepared.

[0111] Thus, when the inner tank 300 has finished disinfecting the tableware with disinfectant, that is, when there is no need to consider the disinfection effect of the disinfectant, the temperature is set to be higher than the temperature of the water tank 100 when the disinfectant is prepared. This not only decomposes the residual ozone in the water tank 100, but also dries the water tank 100 quickly.

[0112] It is understandable that since the temperature of the gas inside the water tank 100 is controlled by the heating device 210 included in the heating device 200, as can be seen from the above analysis, strict temperature control needs to be achieved through the heating device 210.

[0113] As an example, refer to Figure 11The dishwasher also includes a temperature sensor 20 for detecting the temperature of the gas inside the water tank. When the temperature difference between the temperature of the gas inside the water tank 100 and the preset temperature of the water tank 100 under its current condition (the condition when the disinfectant solution is prepared, or the condition when the washing inner tank 300 has finished disinfecting the tableware with the disinfectant solution) is greater than a preset temperature difference threshold, the heating device 210 adjusts the heating temperature. Specifically, when the temperature of the gas inside the water tank 100 is detected to be higher than the preset temperature under the current condition of the water tank 100, the heating device 210 lowers the heating temperature; when the temperature of the gas inside the water tank 100 is detected to be lower than the preset temperature under the current condition of the water tank 100, the heating device 210 raises the heating temperature.

[0114] In this way, the heating device 10 and the temperature sensor 20 are linked for control, ensuring that the gas temperature in the water tank 100 meets the expectations.

[0115] It is understood that the internal storage space of the water tank 100 is divided into a liquid storage space and an air storage space. The temperature sensor 210 is used to ensure that the temperature of the gas in the water tank 100 meets the expectation. If the temperature sensor 210 is set adjacent to the inner wall of the liquid storage space, the liquid in the water tank 100 will interfere with the temperature detected by the temperature sensor 210. As one embodiment, the temperature sensor 210 is placed on the top of the water tank 100. As another embodiment, the temperature sensor 210 is placed on the air outlet pipe or air inlet pipe that is connected to the top of the water tank 100.

[0116] This avoids interference from the liquid in the water tank 100 on the gas temperature detected by the temperature sensor 210, ensuring that the temperature detected by the temperature sensor 210 is close to the actual temperature of the gas in the water tank 100.

[0117] As one embodiment, the dishwasher also includes a first one-way valve 120 disposed on the air inlet pipe of the water tank; and / or a second one-way valve 130 disposed on the air outlet pipe of the water tank.

[0118] The first one-way valve 120 is used to control the opening and closing of the flow channel between air and water tank 100, and the second one-way valve 130 is used to control the opening and closing of the flow channel of air in water tank 100 into washing inner tank 300.

[0119] As one embodiment, the first one-way valve 120 is opened when the heating device 210 is turned on.

[0120] Thus, when the heating device 210 is turned on, the first one-way valve 120 is opened. On the one hand, this ensures that air can flow into the water tank 100 through the air inlet pipe, raising the temperature of the gas inside the water tank 100 and ensuring that some of the oxidant in the disinfectant stored in the water tank 100 can be decomposed by heat. On the other hand, it ensures that after the gas inside the water tank 100 expands due to heat, it can be discharged to the external environment through the air inlet pipe of the water tank 100, avoiding phenomena such as deformation or even explosion of the water tank 100 due to the expansion of the gas inside the water tank 100 due to heat, thereby improving the safety of the water tank 100 in use.

[0121] As one embodiment, the second one-way valve 130 is opened when the washing inner tank 300 has finished disinfecting the tableware with disinfectant.

[0122] In this way, the gas heated by the heating device 210 deployed inside the water tank 100 can flow to the washing inner tank 300 through the gas outlet pipe of the water tank 100. On the one hand, this can allow the washing inner tank 300 to dry as soon as possible after the tableware is disinfected. On the other hand, it can also allow the residual disinfectant in the washing inner tank 300 to be decomposed by heat after the tableware is disinfected.

[0123] As a detailed embodiment, refer to Figure 12 The dishwasher also includes a third water pump 360, which is connected to the outlet of the water cup assembly 330. After the inner washing tank 300 has been disinfected with disinfectant, the third water pump 360 is turned on to discharge the liquid stored in the water cup assembly 330 to the outside.

[0124] This ensures that the water cup assembly 330 remains dry before the next batch of disinfectant is dispensed, preventing residual disinfectant or water from affecting the concentration of the next batch of disinfectant.

[0125] The washing tub 300 includes a dish rack 310, a spray arm 320, a water cup assembly 330, and a fourth water pump 340.

[0126] The dish basket 310 is used to place tableware, the spray arm 320 is used to spray disinfectant onto the tableware placed in the dish basket 310, the water cup assembly 330 is used to store the disinfectant discharged from the water tank 110, and the fourth water pump 340 is used to pump the disinfectant stored in the water cup assembly 330 to the spray arm 320.

[0127] Thus, the tableware can be disinfected by spraying disinfectant onto the tableware placed in the dish rack 310.

[0128] The dishwasher also includes a three-way valve 350, which is connected to the water inlet of the water cup assembly 330, the water inlet of the water tank 100, and the water storage device (not shown in the figure). The three-way valve 350 is used to control the opening and closing of the water flow channels into the water cup assembly 330 and the water tank 100 respectively. A flow meter 360 is also provided between the water storage device and the three-way valve 350. The flow meter 360 is used to detect the flow rate of water from the water storage device into the three-way valve 350.

[0129] As an example, the three-way valve 350 can control the opening of the flow channel into the water cup assembly 330, which is matched with the flow rate of water required for the tableware disinfection process. The three-way valve 350 can also control the opening of the flow channel into the water tank 100, which is matched with the flow rate of water required for the disinfectant preparation process.

[0130] Thus, the three-way valve 350 controls the flow rate of water into the water cup assembly 330 by controlling the opening of the flow channel into the water cup assembly 330, ensuring that the tableware disinfection process can proceed normally within the water cup assembly 330; the three-way valve 350 controls the flow rate of water into the water tank 100 by controlling the opening of the flow channel into the water tank 100, ensuring that the disinfectant preparation process can proceed normally within the water tank 100.

[0131] The second water pump 110 is connected to the outlet of the water cup assembly 330.

[0132] As one embodiment, the displacement of the second water pump 110 is greater than that of the third water pump 370. The displacement of the second water pump 110 is greater than that of the first water pump 90.

[0133] In this way, the second water pump 110 can simultaneously discharge the liquid stored in the water tank 100 and the water cup assembly 330. The water cup assembly 330 can be drained by the second water pump 110 and the third water pump 370, which improves the accuracy of the drainage control of the water cup assembly 330.

[0134] The water tank 100 is equipped with a first one-way valve 120 on its air inlet pipe, and a heating device 210 is installed between the first one-way valve and the water tank 100. A temperature sensor 20, a humidity sensor 70, and an ozone concentration detector 80 are installed on the top of the water tank. The disinfectant preparation device includes a power supply 30 and a discharge electrode 40 and a grounding electrode 50 connected to the power supply 30. The discharge electrode 40 and the grounding electrode 50 are inserted into the water stored in the water tank 100 to form a closed loop. A glass tube 60 completely covers the outside of the discharge electrode 40. A second one-way valve 130 is installed on the air outlet pipe of the water tank 100. The second one-way valve 130 is connected to the air inlet of the washing inner tank 300, and a second fan 10 is installed between the second one-way valve 130 and the water tank 100.

[0135] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0136] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A dishwasher, characterized in that, include: Wash the inner tank; A water tank, wherein the first outlet of the water tank is connected to the inlet of the washing inner tank; the liquid in the water tank is discharged to the inlet of the washing inner tank through the first outlet of the water tank. A heating device is used to increase the temperature of the water tank.

2. The dishwasher as described in claim 1, characterized in that, The heating device includes a heating element for increasing the temperature of the gas inside the water tank.

3. The dishwasher as described in claim 2, characterized in that, The heating device is installed on the air inlet pipe of the water tank.

4. The dishwasher as described in claim 2, characterized in that, The heating device is located on top of the water tank.

5. The dishwasher according to any one of claims 1 to 4, characterized in that, The dishwasher also includes a first fan disposed on the air intake pipe of the water tank.

6. The dishwasher according to any one of claims 1 to 4, characterized in that, The dishwasher also includes a second fan installed on the air outlet pipe of the water tank.

7. The dishwasher according to any one of claims 1 to 4, characterized in that, The dishwasher also includes a first one-way valve disposed on the air inlet pipe of the water tank; and / or a second one-way valve disposed on the air outlet pipe of the water tank.

8. The dishwasher as described in any one of claims 1 to 4, characterized in that, The dishwasher also includes a temperature sensor for detecting the temperature of the gas inside the water tank.

9. The dishwasher as described in any one of claims 1 to 4, characterized in that, The dishwasher also includes a disinfectant preparation device, an ozone concentration detector, and a first water pump. The disinfectant preparation device includes a power supply and a discharge electrode and a grounding electrode connected to the power supply. The discharge electrode and the grounding electrode are inserted into the water stored in the water tank. The ozone concentration detector is used to detect the ozone concentration in the water tank; The first water pump is located between the first outlet of the water tank and the inlet of the washing tank, and is used to pump the liquid in the water tank to the washing tank. The first water pump is turned on when the disinfectant is prepared and the ozone concentration in the water tank is detected to be less than or equal to a preset concentration threshold.

10. The dishwasher as described in claim 9, characterized in that, The dishwasher also includes a humidity sensor for detecting the humidity in the water tank; the power supply is turned on when the humidity in the water tank is less than a preset humidity threshold.

11. The dishwasher as claimed in claim 1, characterized in that, The dishwasher also includes a second water pump, and the second outlet of the water tank is connected to the external environment through the second water pump.

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