Air curtain range hood

A technology of range hood and air curtain, applied in the field of kitchen air purification equipment, 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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  • Air curtain range hood
  • Air curtain range hood
  • Air curtain range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 1 to Figure 7 As shown, the air curtain range hood according to this embodiment is characterized by comprising: a first air curtain device 11 for generating a first air curtain 1110 capable of shielding oil smoke; a second air curtain device 12 for A second air curtain 1120 capable of shielding oil smoke and controlling the flow condition of the first air curtain 1110 is generated; at the same height, the flow rate of the second air curtain 1120 is greater than the flow rate of the first air curtain 1110.

[0050] The "same height" refers to a certain height relative to the horizontal plane formed by the top of the air curtain range hood when it is in use. The range of the "height" is the effective distance for shielding the airflow of the air curtain. The effective distance of the air flow of the shielding air curtain refers to: when the air flow intensity / air velocity / air flow of the shielding air curtain is attenuated to 30% to 70% of the corresponding a...

Embodiment 2

[0054] Such as Figure 1 to Figure 7 As shown, the difference between the air curtain range hood in this embodiment and the foregoing embodiment is that the air curtain range hood controls the first air curtain 1110 by controlling the flow condition of the second air curtain 1120 Flow status. Preferably, the first air curtain 1110 and the second air curtain 1120 together constitute at least part of a shielding air curtain for shielding oily smoke.

[0055] Further, the first air curtain 1110 and the second air curtain 1120 in this embodiment are at least parallel to the airflow directions at their respective starting ends. Preferably, the included angle is less than 15°. The flow direction of the first air curtain 1110 and / or the second air curtain 1120 is adjustable at least at the beginning. Preferably, the first air curtain device 11 and / or the second air curtain device 12 includes a deflectable wind deflector provided to match its air outlet, and the first air curtain 1110 ...

Embodiment 3

[0058] Such as Figure 1 to Figure 3 As shown, the difference between the air curtain range hood described in this embodiment and the foregoing embodiment is that the air curtain range hood controls the airflow beginning of the second air curtain 1120 and the first air curtain 1110. The relative position of the beginning of the airflow in the horizontal direction controls the flow condition of the first air curtain 1110.

[0059] Preferably, the air curtain range hood in this embodiment includes a suction port for sucking oil fume, and the air curtain range hood controls the airflow beginning end of the second air curtain 1120 and / or the first air curtain 1110 The relative position between the beginning of the air flow and the suction port controls the flow condition of the first air curtain 1110. For example, in the case where the relative velocity difference between the first wind curtain 1110 and the second wind curtain 1120 is constant at a certain height, the closer the dis...

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PUM

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Abstract

The invention discloses an air curtain range hood. The air curtain range hood comprises a first air curtain device and a second air curtain device, wherein the first air curtain device is used for generating a first air curtain capable of shielding oil fume; the second air curtain device is used for generating a second air curtain capable of shielding oil fume and controlling the flow condition ofthe first air curtain; and at the same height, the flow rate of the second air curtain is greater than that of the first air curtain. According to the air curtain range hood, the effective distance of the shielding air curtain is adjusted through an air curtain airflow difference between the two air curtain devices.

Description

Technical field [0001] The invention belongs to the field of kitchen air purification equipment, and specifically relates to an air curtain range hood. Background technique [0002] The air curtain range hood in the prior art is provided with an air curtain between the user and the pot and the stove to isolate the user from the oil fume. However, the temperature of oil fume is higher after it is generated near the mouth of the pot, and the composition of oil and water is gaseous, and the density is lower than that of the air in the surrounding environment. Its rising trend is also very obvious. There is no need for air curtain to shield oil smoke within the distance. In addition, the air curtain airflow at the position relative to the vertical direction drives the air at the opening of the pot to flow downward, causing the air pressure at the opening of the pot to decrease, which affects the upward diffusion of oil smoke. The kitchen environment is limited, and the space for th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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