Efficient mute range hood

A range hood and mute technology, which is applied in the field of high-efficiency and quiet range hoods, can solve problems such as limited grease separation effect, suction power loss, and high noise of the range hood, and achieve the effects of avoiding smoking dead ends, reducing losses, and efficiently exhausting smoke

Active Publication Date: 2015-07-22
JOYOUNG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current range hoods, such as top-suction range hoods, usually have a net cover at the air inlet, and an oil collection box is hung in the center of the net cover. The machine adopts the smoke baffle for grease separation. Usually the smoke baffle is single-layer and flat. The oil fume rises and hits the smoke baffle and is inhaled from around the smoke baffle. There are certain problems with this structure. First, the oil fume enters from the surrounding , intersect and collide with the back side of the smoke baffle, a vortex will be formed at the confluence, the vortex will cause the loss of suction power, and the vortex will form a smoking dead angle when the range hood is working. The hood with this structure relatively loud noise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 1 to Figure 6 The range hood shown has a housing 1 on which an air inlet 11 is provided. The range hood is equipped with a separating baffle 2 that shields the air inlet 11, and the separating baffle 2 includes an outer layer The plane separating plate 21 and the inner baffle 22, the middle of the baffle 22 is raised, and the air inlet channel 3 gradually decreases from the edge of the baffle 22 to the center. The range hood of the present invention is provided with a separating baffle 2, which realizes the separation of grease on the outer layer and efficient diversion in the inner layer. The middle of the baffle 22 is raised, so that the air inlet channel 3 is separated from the baffle 2 There is a gradually decreasing flow path towards the center of the air inlet, which speeds up the flow of wind speed, and has higher smoking efficiency. Moreover, the middle part of the baffle 22 is raised to avoid the collection of air intake on the outer periphery of ...

Embodiment 2

[0034] The difference between this embodiment and the first embodiment is as follows: Figure 7 to Figure 9 , The arc surface is from the edge to the center of the separation deflector, and the radius of curvature gradually decreases. That is, the arc gradually increases, and when the oil smoke moves along the deflector 22, it is always subjected to a thrust acceleration of the arc surface 221 pointing to the center of the circle, and the oil smoke can be further condensed in the air inlet channel 3 to collect oil. In this embodiment, the range hood is a side suction hood, the housing 1 includes a body 17 and an upper cover, a fan is installed in the housing 1, and a concave set is provided on the front of the body 17 An air inlet 11 is opened on the smoke collecting hood 14, the separating baffle 2 is installed in front of the air inlet 11, and an oil receiving box 5 is arranged under the smoke collecting hood 14. The separation deflector 2 of the side suction hood can adopt ...

Embodiment 3

[0037] The difference between this embodiment and the first embodiment is as follows: Picture 10 The baffle 22 has a baffle curved surface 224, which is a smooth curved surface with a raised middle part. The curved surface is symmetrical with the center of the separated baffle as the central axis. The curved surface on the side of the central axis has an inflection point. The portion of the deflector curved surface 224 near the edge is on the concave curved surface, the portion near the center of the bulge is on the convex curved surface, and the concave curved surface and the convex The intersection of the arcs is the inflection point of the two arcs. Setting the inflection point can make the deflector 22 a smooth continuous curved surface, which facilitates the stamping and forming of the deflector 22. In this embodiment, the two front and rear deflector slopes 223 are not used, and the deflector 22 is a whole smooth curved surface to ensure The protruding part is located in...

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PUM

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Abstract

The invention relates to an efficient mute range hood. The efficient mute range hood is provided with a casing, wherein an air inlet is formed in the casing, a separation and flow guide plate for shielding the air inlet is mounted on the range hood and comprises a plane separation plate on the outer layer and a flow guide plate on the inner layer, the middle of the flow guide plate is bulged, and an air inlet channel is gradually reduced from the edges of the flow guide plate to the center. Oil is separated from the outer layer of the separation and flow guide plate, and the inner layer is used for efficient flow guide, the air inlet channel is gradually reduced from the periphery of the separation and flow guide plate to the center of the air inlet, flowing of air is accelerated, and the smoke suction efficiency is higher; the middle of the flow guide plate is bulged, and the conditions that vortex dead angles are formed and suction power is consumed due to face-to-face collision of air on the back side of the separation and flow guide plate after inlet air from the periphery of the separation and flow guide plate converges are avoided; with adoption of the double-layer the separation and flow guide plate, a noise reduction cavity is formed between the plane separation plate and the flow guide plate, and noise of the range hood is effectively reduced.

Description

Technical field [0001] The invention relates to the field of household appliances, in particular to an efficient and silent range hood. Background technique [0002] Current range hoods, such as top-suction range hoods, usually have a net cover at the air inlet, and the oil collecting box is hung in the center of the net cover. The net cover is used to separate the oil fume and collect oil, and the grease separation effect is limited; The machine uses a smoke baffle to separate grease. Usually the smoke baffle is a single-layer and flat shape. The oil fume rises and hits the smoke baffle and is inhaled from around the smoke baffle. There are certain problems with this structure. First, the oil fume enters from all around The vortex is formed at the confluence when it intersects and impacts on the back side of the smoke baffle. The vortex causes the loss of suction power, and the vortex forms a dead corner of smoking when the range hood is working. The noise is also relatively lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 朱泽春赵沛彪郁仲华
Owner JOYOUNG CO LTD
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