Air curtain range hood

A technology for range hoods and air curtains, which is applied in the field of kitchen air purification equipment and can solve problems such as user discomfort

Active Publication Date: 2020-02-25
QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, how to reasonably control the effective distance of the air curtain airflow to avoid the ineffective air curtain from affecting the rise of oil fume or causing discomfort to users has become an urgent problem to be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Such as Figure 1 to Figure 4 As shown, in the air curtain range hood described in this embodiment, the air curtain device includes two-stage mechanisms for shielding the oil fume and controlling the effective distance of the air flow of the air curtain respectively. Separate the part of the air curtain device that generates the air curtain from the part that controls the effective distance of the airflow of the air curtain. When the part that controls the air flow of the air curtain is not working, the shielding air curtain generated by the equipment has a longer effective distance of the air flow, and the generated shielding air curtain has a good function of shielding oily smoke at the air outlet of the air curtain device. Under the action of part of the effective distance of the curtain airflow, the airflow shielding the air curtain is weakened in the non-diffusion area of ​​the oil fume. This setting makes the shielding air curtain have a good oil fume shielding e...

Embodiment 2

[0089] Such as Figure 1 to Figure 5As shown, the difference between the air curtain range hood described in this embodiment and the above embodiment is that the air curtain device includes a shielding air curtain unit that generates a shielding air curtain and a blocking air curtain unit that generates a blocking air curtain, The shielding air curtain is used to shield oil fume, and the blocking air curtain is used to control the effective distance of the airflow of the shielding air curtain. In this implementation, the mechanism for generating the shielding airflow of the air curtain device and the mechanism for controlling the blocking airflow of the shielding airflow are integrated into one air curtain device, which will not increase the space occupied by the range hood, so that the shielding air curtain and blocking The air curtains share one airflow source, which simplifies the structure of the air curtain device. When the technical solution in this embodiment is implem...

Embodiment 3

[0092] Such as image 3 As shown, the difference between the air curtain range hood described in this embodiment and the above embodiments is that the blocking air curtain unit is arranged adjacent to the side of the shielding air curtain unit facing the user. In the technical solution of this embodiment, the blocking air curtain is separated from the user by the shielding air curtain, so the blocking air curtain is far away from the user in its stroke (relative to the upper position), and will not affect the user. And, after blocking the air curtain and breaking up the shielding air curtain, the diffused air curtain airflow (blocking air curtain airflow and shielding air curtain airflow) all has a tendency to spread to the user direction, but at this time the air curtain has been opened. The direction of the airflow will not be too concentrated, and it will not be blown to the user with a large impact, which will not easily cause discomfort to the user. And it will not blow ...

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PUM

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Abstract

The invention discloses an air curtain range hood. The air curtain range hood comprises an air curtain device for generating an air curtain. The air curtain device comprises a shielding air curtain unit and a blocking air curtain unit, wherein the shielding air curtain unit is used for generating a shielding air curtain, and the shielding air curtain is used for shielding oil smoke; the blocking air curtain unit is used for generating a blocking air curtain, and the blocking air curtain is at least used for controlling the effective distance of the airflow of the shielding air curtain; and a certain included angle is formed between the flow direction of the blocking air curtain and the flow direction of the shielding air curtain. According to the air curtain range hood, the working range of the shielding air curtain unit is controlled by the blocking air curtain unit, so that the effective distance of the air flow of the shielding air curtain is adjusted.

Description

technical field [0001] The invention belongs to the field of kitchen air purification equipment, and in particular relates to an air curtain range hood. Background technique [0002] In the air curtain range hood in the prior art, an air curtain is arranged between the user and the pot and the stove to isolate the user from the oil fume. However, after the oil fume is generated near the mouth of the pot, the temperature is higher, and the components of oil and water are in a gaseous state, which is lower than the air density in the surrounding environment, and its upward trend is also very obvious. There is no need for an air curtain to shield the oil fume within a distance. In addition, the vertically downward air curtain air flow at this position drives the air at the mouth of the pot to flow downward, causing the air pressure at the mouth of the pot to decrease, which affects the upward diffusion of oil fume. The kitchen environment is limited, and the space at the stov...

Claims

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Application Information

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IPC IPC(8): F24C15/20
CPCF24C15/2021F24C15/2028
Inventor 孟永哲艾希顺张智盖其高
Owner QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD
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