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A top-suction range hood with a smoke deflector

A technology of range hood and smoke guide plate is applied in the direction of removing oil fume, heating method, household heating, etc., which can solve the problem of thickening the thickness of the negative layer on the surface of the smoke guide plate, the effect of the Coanda effect is not obvious, and the smoke guide effect is not good. and other problems, to achieve the effect of simple structure, enhanced smoke guide effect, and enhanced Coanda effect.

Active Publication Date: 2017-05-03
GUANGDONG HISENSE HOME APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the smoke guiding plate is a smooth flat plate, the effect of the Coanda effect is not obvious, and the smoke guiding effect is not good.
[0004] In order to solve the problem of poor smoke guide effect of the above-mentioned smoke guide plate, Chinese Patent Application No. 201310639355.0 proposes a smoke guide plate with a concave structure with a high center and a low periphery. When the oil smoke passes through the concave smoke guide plate, the The concave part of the space forms a vortex, which thickens the thickness of the negative layer on the surface of the smoke deflector to a certain extent, thereby enhancing the effect of the Coanda effect and achieving certain results

Method used

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  • A top-suction range hood with a smoke deflector
  • A top-suction range hood with a smoke deflector
  • A top-suction range hood with a smoke deflector

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The top-suction range hood with the smoke deflector of the present invention is as figure 1 , 2 As shown, it includes a smoke collection hood 1, a smoke deflector 2, an oil cup 3 and a body 4, wherein the smoke collection hood 1 is installed at the lower end of the body 4, and a fan system 41 is arranged in the body 4, and the lower end of the smoke collection hood 1 is provided with a The air inlet, the smoke guide plate 2 is facing the air inlet of the smoke collecting hood 1, and the smoke guide plate 2 is set with a high front and a low slope at the rear. The smoke guide plate 2 and the smoke collecting hood 1 maintain a predetermined distance to form a fume passage, and the smoke guide plate 2 is fixed on the smoke collecting hood 1 through brackets or buckles 5, and a strip-shaped oil cup 3 is provided below the rear edge of the smoke guide plate 2, and the lower surface of the smoke guide plate 2 is wavy.

[0029] In this embodiment, the lower surface of the smo...

Embodiment 2

[0033] The range hood of this embodiment is similar to Embodiment 1, and its difference is: as Figure 5 , 6 As shown, the rear side of the above-mentioned smoke guide plate 2 is provided with an oil cup 3, the front of the smoke guide plate 2 is high and the rear is inclined, the middle part of the lower surface of the smoke guide plate 2 is a plane 26, and the lower surface of the smoke guide plate 2 is in the corresponding The left and right sides of the plane 26 are respectively provided with arc-shaped grooves 27, and the depth of the arc-shaped grooves 27 gradually decreases from front to back. The depth h of the arc-shaped grooves 27 is 0.5 mm to 10 mm. The upward flanging 22, the upper surface of the smoke guide plate 2 forms a protrusion 24 at the position corresponding to the arc-shaped groove 27, and the rear edge of the smoke guide plate 2 is provided with an oil leakage hole 23. Preferably, the middle part of the above-mentioned smoke guide plate 2 The intersecti...

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PUM

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Abstract

The invention discloses a top-suction extractor hood with a smoke deflector. The top-suction extractor hood comprises a machine body, an exhaust fume collecting hood and a smoke deflector, wherein the exhaust fume collecting hood is connected to the machine body; a fan is arranged in the machine body; an air inlet is formed on the exhaust fume collecting hood; the smoke deflector is arranged in a manner of directly facing the air inlet of the exhaust fume collecting hood, and a fume passage is formed by a gap between the smoke deflector and the exhaust fume collecting hood; and the lower surface of the smoke deflector is of a wavy structure. According to the top-suction extractor hood disclosed by the invention, by designing the lower surface of the smoke deflector as a wavy structure, roughness of the lower surface of the smoke deflector is enhanced; and a relatively large boundary layer is generated when fume passes through the lower surface of the smoke deflector, so as to enhance a wall attachment effect, thus improving a smoke deflection effect.

Description

technical field [0001] The invention relates to a range hood, in particular to a top-suction range hood with a smoke guide plate. Background technique [0002] At present, the air intake mode of the existing top-suction range hood usually adopts the mode of setting an air inlet and an air intake net in the middle of the concave smoke collection hood, such as a range hood disclosed in Chinese patent application number 200520086100.7, Including the smoke collection hood arranged at the lower part and the air duct designed on the upper part of the smoke collection hood, the air inlet circle connected with the bottom end of the air duct is arranged in the middle part of the smoke collection hood, a fan is arranged in the air duct, and the lower part of the air inlet circle is provided with The oil filter screen is provided with an oil cup at the bottom of the oil filter screen. The negative pressure area of ​​this range hood is mainly concentrated near the air inlet net, that i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
Inventor 梁之博
Owner GUANGDONG HISENSE HOME APPLIANCES CO LTD