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Air duct structure of dishwasher

A technology for dishwashers and air ducts, which is applied in the field of air duct structure of dishwashers, and can solve problems such as mildew, corrosion of fans, and small air volume of drying fans.

Pending Publication Date: 2020-10-02
QINGDAO HAIER DISHWASHER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned prior art discloses a technical solution for exhausting the air of a dishwasher, there is still a drying fan with small air volume and high noise; the airflow generated by the fan suffers from serious loss and transmission in the process of being transported to the accommodating chamber. The problem of low efficiency; the water or steam in the inner tank of the dishwasher flows back along the air duct, causing corrosion or mildew of the fan and other disadvantages

Method used

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  • Air duct structure of dishwasher
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  • Air duct structure of dishwasher

Examples

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Embodiment 1

[0123] Such as figure 1 and figure 2 As shown, the air duct structure of a dishwasher described in this embodiment includes a first air duct 2 and a second air duct 3 communicating with the accommodating chamber 1 of the dishwasher; the first air duct 2 A fan unit 201 is provided; under the action of the fan unit 201, the gas in the accommodating chamber 1 is discharged from the dishwasher through the first air duct 2; the gas outside the accommodating chamber 1 is discharged from the dishwasher The second air duct 3 enters the accommodation chamber 1; the first air duct 2 is also provided with an anti-backflow structure to prevent water or steam from flowing backward from the accommodation chamber 1 along the air duct.

[0124] In the present invention, by setting an air duct structure that fits into the dishwasher storage chamber 1 and the area of ​​the air flow area in the air duct changes, the air flow can quickly pass through the air duct, enter the first air duct 2 fro...

Embodiment 2

[0126] Such as Figure 1 to Figure 4 As shown, this embodiment is a further limitation of the first embodiment above. In the air duct structure of a dishwasher described in this embodiment, the gas in the accommodating chamber 1 is blown by the fan unit 201 , there is a tendency to discharge the dishwasher from the accommodating chamber 1 along the first air passage 2, and by setting a cross-flow fan in the first air passage 2, a large amount of drying air source is provided, and at the same time, when the cross-flow fan is running The noise is low, reducing the impact on the surrounding environment of the dishwasher, and providing a more comfortable environment for the user. Under the action of the negative pressure formed in the accommodation chamber 1, the air outside the accommodation chamber The second air duct 3 enters into the containing chamber 1 .

Embodiment 3

[0128] Such as Figure 9As shown, this embodiment is a further limitation of the above-mentioned embodiment 1 or embodiment 2. In this embodiment, a heating unit 301 is also arranged in the second air duct 3; the heating unit 301 is arranged in the second air duct 3 in the area formed by the air inlet direction; the air outside the storage chamber 1, after passing through the second air channel 3, forms a dry hot air flow under the action of the heating unit 301, and passes through the The cross-flow fan in the first air duct 2 cooperates with the PTC heater installed on the second air duct 3 to achieve negative pressure in the storage chamber 1 and the drying of hot air from the second air duct 3 In this way, the rapid drying of the inner space of the accommodating chamber 1 of the dishwasher is realized.

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Abstract

The present invention discloses an air duct structure of a dishwasher. The air duct structure comprises a first air duct and a second air duct which communicate with a containing cavity of the dishwasher. The first air duct is provided with a fan unit; under the action of the fan unit, air in the containing cavity is exhausted out of the dishwasher through the first air duct, gas outside the dishwasher enters the containing cavity from the second air duct, and an anti-backflow structure for preventing water or steam from flowing back from the containing cavity along the air duct is also arranged in the first air duct. According to the air duct structure of the dishwasher, a cross-flow fan is arranged in the first air duct, and the characteristics that the cross-flow fan is large in air volume and low in noise are utilized, so that the influence of the dishwasher on the surrounding environment is reduced; and meanwhile, the cross-flow fan adopts a use mode of exhausting air from the containing cavity, and is matched with the PTC heater arranged on the second air duct to exhaust the containing cavity to negative pressure, and a drying mode of feeding hot air from the second air ductis adopted, so that quick drying of the containing cavity of the dishwasher is realized.

Description

technical field [0001] The invention belongs to the technical field of household appliances, and in particular relates to an air duct structure of a dishwasher. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the quality of life, and thus higher and higher requirements for product quality, performance, user-friendly use, and intelligent operation. As an excellent product, dishwashers have gradually entered people's lives. Dishwashers are equipment that automatically clean bowls, chopsticks, plates, plates, knives, forks and other tableware, which greatly facilitates people's lives. After washing the tableware, the dishwasher usually needs to dry the tableware. Some of the existing dishwashers use waste heat to dry the tableware, and some use an additional drying system to dry the tableware. The drying system may be an exhaust system, through which the humid air inside the dishwasher is exhausted to the o...

Claims

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Application Information

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IPC IPC(8): A47L15/48
CPCA47L15/48A47L15/486A47L15/488
Inventor 徐双超董媛媛杨林
Owner QINGDAO HAIER DISHWASHER
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