Steam system of dish washing machine

Abstract

The steam system of the dish washing machine comprises a water inlet valve, a respirator, a water cup, a pump body, a steam generator and a spray head, the water inlet valve is connected with the respirator through a first pipe body, the respirator is connected with the water cup through a second pipe body, and a water outlet of the water cup is connected with an input port of the pump body through a third pipe body. An output port of the pump body is connected with an input port of the steam generator, an output port of the steam generator is connected with the spray head, the spray head is installed on the inner container wall of the dish washing machine, the steam generator comprises a shell and a heating pipe arranged in the shell, and a circuitous water channel is arranged in the shell. The shell is provided with a water inlet and a steam outlet which are communicated with the water channel, the water inlet and the steam outlet are formed in the two ends of the water channel respectively, and the heating pipe is arranged in a circuitous mode and penetrates through the water channel back and forth. The structure that the heating pipe is inserted in the water channel back and forth is adopted, so that water entering the water channel can make full contact with the heating pipe to generate a large amount of high-temperature steam.

Description

Technical Field

[0001] This utility model relates to a steam system for a dishwasher. Background Technology

[0002] A dishwasher is a kitchen appliance that automatically washes and dries dishes. Currently, dishwashers on the market typically include a steam sterilization program after washing, using high-temperature steam to sterilize the dishes and improve sterilization and antibacterial effects. Due to the limitations of the dishwasher's internal structure, conventional external heating plates are not suitable. Therefore, a small-sized steam generator has been developed, with a structure similar to an external heating plate. However, due to its small size, it produces less steam, requiring the dishwasher to extend the steam sterilization time to achieve the desired effect. This undoubtedly affects the dishwasher's cleaning efficiency and increases energy consumption. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned problems. We provide a steam system for a dishwasher that solves the problem of insufficient steam output from small-volume steam generators at present.

[0004] To achieve the above objectives, this utility model provides a steam system for a dishwasher, comprising a water inlet valve, a breather, a water cup, a pump body, a steam generator, and a nozzle. The water inlet valve is connected to the breather via a first pipe, the breather is connected to the water storage chamber of the water cup via a second pipe, the water storage chamber of the water cup is connected to the inlet of the pump body via a third pipe, the outlet of the pump body is connected to the inlet of the steam generator, and the outlet of the steam generator is connected to the nozzle. The nozzle is installed on the inner wall of the dishwasher. The steam generator includes a housing and a heating element disposed inside the housing. The housing has a meandering water channel, and the housing has a water inlet and a steam outlet communicating with the water channel. The water inlet and the steam outlet are respectively disposed at both ends of the water channel, and the heating element is arranged in a meandering manner and passes back and forth through the water channel.

[0005] In one or more embodiments, the housing is provided with a thermally conductive insulating sleeve for mounting a heating element, and the heating element is placed in the thermally conductive insulating sleeve.

[0006] In one or more embodiments, a temperature control switch is provided on the outside of the housing. The temperature control switch is used to control the working state of the heating element. When the temperature control switch detects that the housing temperature has reached a preset temperature, the heating element stops working.

[0007] In one or more embodiments, the steam generator is provided with a flame-retardant outer shell, and the flame-retardant outer shell is provided with clearance openings at the positions corresponding to the water inlet and steam outlet, and the pump body is mounted and fixed on the flame-retardant outer shell.

[0008] In one or more embodiments, the housing includes a bottom shell and a cover plate, the cover plate being connected and fixed to the bottom shell by screws.

[0009] In one or more embodiments, multiple baffles are distributed at intervals within the housing, forming the water channel between the baffles, and some baffles have notches at their upper ends.

[0010] In one or more embodiments, a water softener is connected to the second pipe.

[0011] Compared with the prior art, the advantages of this invention are: the steam generator configured in this steam system, by setting a convoluted heating tube and a convoluted water channel, and by using a structure in which the heating tube is inserted back and forth on the water channel, allows the water entering the water channel to fully contact the heating tube to generate a large amount of high-temperature steam, ensuring the amount of steam required for the dishwasher to sterilize. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the dishwasher base in this embodiment;

[0013] Figure 2 This is a schematic diagram of the integrated structure of the steam generator, flame-retardant housing, and pump body in this embodiment;

[0014] Figure 3 This is a schematic diagram of the internal structure of the steam generator in this embodiment;

[0015] Figure 4 This is a schematic diagram of the bottom structure of the steam generator in this embodiment. Detailed Implementation

[0016] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0017] Please refer to Figure 1-4This application provides a steam system for a dishwasher, comprising a water inlet valve 1, a breather 2, a water cup 3, a pump body 4, a steam generator, and a nozzle 5. The water inlet valve is connected to the breather via a first pipe 6. The breather is connected to the water storage chamber of the water cup via a second pipe 7. The water storage chamber of the water cup is connected to the inlet of the pump body via a third pipe 8. The outlet of the pump body is connected to the inlet of the steam generator 9. The outlet of the steam generator is connected to the nozzle 5 via a fourth outlet pipe. The nozzle is installed on the inner wall of the dishwasher. The steam generator includes a housing and a heating element 10 disposed inside the housing. The system features a meandering water channel 11 internally, and an inlet 12 and a steam outlet 13 connected to the water channel on the casing. The inlet and outlet are located at opposite ends of the water channel 11, ensuring they are far apart to extend the water flow path. The heating element is arranged in a meandering pattern and interweaves within the water channel. When water enters through the inlet, it flows through the meandering channel, continuously contacting and heating the heating element to generate high-temperature steam. This high-temperature steam is then output from the steam outlet and sprayed into the dishwasher's inner tub through a nozzle. This design, with its meandering water channel and the interwoven heating element, extends the contact time between the water and the heating element, ensuring thorough heating and steam generation. Furthermore, the relatively long water channel ensures continuous high-temperature steam generation during flow, guaranteeing sufficient steam output to meet the dishwasher's sterilization requirements.

[0018] The housing is provided with a thermally conductive insulating sleeve 14 for installing the heating element. The heating element is placed in the thermally conductive insulating sleeve, which can prevent the heating element from directly contacting water and improve the safety of use.

[0019] The outer side of the housing is equipped with a temperature control switch 15, which is used to control the working state of the heating element 10. When the temperature control switch detects that the housing temperature has reached the preset temperature, the heating element stops working. Setting a temperature control switch can prevent dry burning. When the temperature reaches the preset maximum temperature, the power supply to the heating element is directly cut off to protect the dishwasher from being burned.

[0020] The steam generator is provided with a flame-retardant outer shell 16. The flame-retardant outer shell has clearance openings at the positions corresponding to the water inlet and steam outlet. The pump body 4 is installed and fixed on the flame-retardant outer shell. The flame-retardant outer shell has a certain heat insulation effect and plays a protective role, preventing the devices and structural parts of the dishwasher located near the steam generator from being deformed by heat.

[0021] The housing includes a bottom shell 17 and a cover plate 18. The cover plate is connected and fixed to the bottom shell by screws 19. When the steam generator is internally blocked or the steam output is insufficient, the cover plate can be removed to clean and unclog the water channel.

[0022] Multiple baffles 20 are distributed at intervals inside the shell, forming a water channel 11 between the baffles. Some baffles have notches 21 at their upper ends, which facilitate the passage of high-temperature steam and ensure smooth output of high-temperature steam.

[0023] A water softener 22 is connected to the second pipe 7. The water softener can soften the water and delay the scaling inside the steam generator.

[0024] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A steam system for a dishwasher, characterized in that: The device includes an inlet valve (1), a breather (2), a water cup (3), a pump body (4), a steam generator, and a nozzle (5). The inlet valve is connected to the breather through a first pipe (6). The breather is connected to the water storage chamber of the water cup through a second pipe (7). The water storage chamber of the water cup is connected to the inlet of the pump body through a third pipe (8). The outlet of the pump body is connected to the inlet of the steam generator (9). The outlet of the steam generator is connected to the nozzle (5). The nozzle is installed on the inner wall of the dishwasher. The steam generator includes a housing and a heating element (10) located inside the housing. The housing has a meandering water channel (11). The housing has an inlet (12) and a steam outlet (13) connected to the water channel. The inlet and the steam outlet are located at the two ends of the water channel (11). The heating element is meandering and passes back and forth through the water channel.

2. The steam system of a dishwasher according to claim 1, characterized in that: The housing is provided with a thermally conductive insulating sleeve (14) for installing the heating element, and the heating element is placed in the thermally conductive insulating sleeve.

3. The steam system of a dishwasher according to claim 1, characterized in that: A temperature control switch (15) is provided on the outside of the housing. The temperature control switch is used to control the working state of the heating element (10). When the temperature control switch detects that the housing temperature reaches the preset temperature, the heating element stops working.

4. The steam system of a dishwasher according to claim 1, characterized in that: The steam generator is provided with a flame-retardant outer shell (16), and the flame-retardant outer shell is provided with clearance openings at the positions corresponding to the water inlet and steam outlet. The pump body (4) is installed and fixed on the flame-retardant outer shell.

5. The steam system of a dishwasher according to claim 1, characterized in that: The housing includes a bottom shell (17) and a cover plate (18), with the cover plate being connected and fixed to the bottom shell by screws (19).

6. A steam system for a dishwasher according to any one of claims 1-5, characterized in that: Multiple baffles (20) are distributed at intervals inside the shell, forming the water channel (11) between the baffles, and some baffles have notches (21) at their upper ends.

7. A steam system for a dishwasher according to any one of claims 1-5, characterized in that: A water softener (22) is connected to the second pipe (7).

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