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Range hood oil discharge structure and range hood

An oil discharge structure and technology for range hoods, which are used in the removal of oil fume, household stoves/stoves, heating methods, etc., can solve the problems of flowing to the lower end of the mesh plate, secondary pollution, entering the housing of the range hood, etc., and prolong the working life. , Improve the service life, the effect of large kinetic energy

Active Publication Date: 2019-08-30
QINGDAO HAIER SMART TECH R & D CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grid disk can intercept oil droplets. Theoretically, under the action of centrifugal force, the oil droplets intercepted by the grid disk will be thrown into the oil collection ring located on the outer peripheral side of the grid disk under the action of centrifugal force. However, when the machine is shut down or the impeller running speed changes suddenly At this time, the oil intercepted on the grid plate will spread out in an irregular track along the edge of the grid plate or flow into the impeller along the intermediate shaft, or flow to the lower end of the grid plate under the action of gravity, and enter the range hood shell, resulting in secondary Pollution

Method used

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  • Range hood oil discharge structure and range hood
  • Range hood oil discharge structure and range hood
  • Range hood oil discharge structure and range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1-4 As shown, in order to discharge the oil droplets intercepted on the grid plate 2 in a more regular manner, the technical solution adopted in this embodiment is that the oil discharge structure of the present invention also includes an annular connecting piece 3, on the connecting piece 3 Also be provided with the oil guide structure 4 that surrounds mesh wire 22 in a circle, described oil guide structure 4 comprises oil guide groove 41 and is arranged on the side of oil guide groove 41 far away from grid disk 2 axle centers and is used for the oil in oil guide groove 41 discharges. There are four oil discharge ports 42, and the oil discharge ports 42 are evenly distributed along the circumferential direction of the grid plate 2. The outer peripheral side of the mesh disk 2 is connected to the inner peripheral side of the front end of the impeller 1 through a connecting piece 3 . The oil guide groove 41 is an annular groove arranged on the end face o...

Embodiment 2

[0048] Such as Figure 5-6 As shown, the difference between this embodiment and Embodiment 1 is that the oil discharge port 42 is an oblique outlet, specifically, the oil discharge port 42 is formed at a certain angle from the bottom surface of the oil guide groove 41 along the direction away from the axis of the mesh disk 2. Obliquely penetrating through the side wall of the oil guide groove 41 , setting the oil outlet 42 obliquely can allow more oil droplets to collect in the oil guide groove 41 , and enable the oil droplets to be discharged from a position farther away from the impeller 1 .

Embodiment 3

[0050] Such as Figure 7-8 As shown, in order to discharge the oil droplets intercepted on the network disk 2 in a relatively regular manner, the technical solution adopted in this embodiment is that an oil guide structure 4 is also provided on the network disk 2, and the oil guide structure 4 is arranged along the The radial distribution of the mesh disk 2 is on the periphery of the mesh wire 22, and the oil guide structure 4 includes an oil guide groove 41 and a plurality of holes arranged on the side of the oil guide groove 41 away from the axis of the mesh disk 2 for discharging the oil in the oil guide groove 41. There are four oil discharge ports 42, and the oil discharge ports 42 are evenly distributed along the circumferential direction of the grid plate 2.

[0051] Specifically, the oil guide groove 41 is an annular groove arranged on the outer edge of the grid plate 2 and recessed toward the impeller 1 along the axial direction of the grid plate 2, and the oil discha...

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Abstract

The invention relates to a displacement configuration of a range hood, which comprises an impeller, an annular connecting member and a net disk, wherein the net disk is connected with the impeller bythe connecting member and comprises a framework coaxially arranged with the impeller and meshes arranged on the framework and used for intercepting oil drops, a circle of oil guide structure enclosingthe meshes is arranged on the connecting member, and the oil guide structure comprises an oil guide slot and an oil discharge hole communicated with the oil guide hole and used for discharging oil inthe oil guide slot. The invention also relates to a range hood configured with the displacement configuration of the range hood. According to the displacement configuration, due to the arrangement ofthe oil guide slot, oil drops on the meshes can be collected and are prevented from flowing to the center of the net disk, and due to the collection effect of the oil guide slot, oil drops dischargedfrom the oil discharge hole is large in mass, and therefore, the oil drops can fly along a straight line more easily and fall into an already arranged oil collecting device, and the problem that relatively small oil drops fly apart towards the inside of the impeller due to wind effect is avoided.

Description

technical field [0001] The invention relates to the field of kitchen appliances, in particular to an oil discharge structure of a range hood and the range hood. Background technique [0002] The range hood is one of the commonly used kitchen appliances. Its function is to "suck away" the smoke generated by cooking during cooking, also known as smoke separation, so as to reduce the spread of smoke in the indoor air and external emissions. When cooking produces a large amount of oil droplets splashing to the suction port of the range hood, the ideal state is that the range hood can suck these oil droplets into the range hood and separate the oil droplets and collect them in the oil tank. When the oil accumulates to a certain amount, The user pours out the waste oil, and so on. The actual range hood products, due to the current functional limitations, most of them suck oil droplets into the fan, and the oil droplets will stick to the inside of the fan or the impeller, which fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
Inventor 闫赛娜许升蔡玉标孟永哲
Owner QINGDAO HAIER SMART TECH R & D CO LTD