Near-suction range hood

A range hood and near-suction technology, applied in the field of kitchen appliances, can solve the problems of uneven negative pressure distribution on the air inlet surface, difficulty in overcoming pipe resistance, and unfavorable performance of the impeller, so as to improve the smoke exhaust effect, cleanliness and safety. It is easy to manufacture and has the effect of improving the efficiency of oil fume absorption

Pending Publication Date: 2019-04-09
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As mentioned above in the prior art, the negative pressure area is small, and the negative pressure distribution on the air inlet surface is uneven. After the oil fume enters the smoke collection chamber, it is easy to cause turbulence and turbulent flow, which affects the efficiency of oil suction fume, and the deflector plate is difficult to Clean; the fan system usually uses a multi-blade centrifugal fan, and the multi-blade centrifugal fan is placed in the lower triangle. In order to ensure a high air intake efficiency, the fan system is relatively large
Moreover, this arrangement of the fan, because the impeller has a pre-rotation effect on the gas and the direction of the gas will gradually change during the 90° turning process of the gas flowing into the impeller, the purely consistent inlet and outlet angles are not good for the actual working ability of the impeller. ;In addition, the fan is far away from the air outlet pipe, it is difficult to overcome the resistance of the pipe, the fan faces the user directly, lacks noise reduction measures, and the noise is high

Method used

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Examples

Experimental program
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Embodiment 1

[0036] see Figure 1 ~ Figure 3, a near-suction range hood, including a housing 1 and a chassis 2 located above the housing 1, for the convenience of description, hereinafter, "front", "rear", "left", "right", "upper" , "down" both refer to the position of the range hood relative to the user when the user uses the range hood, and do not limit the structure.

[0037] In this embodiment, the housing 1 includes first side panels 11 located on the left and right sides, and the front end of the first side panel 11 gradually inclines backwards (inclined to the horizontal direction) from top to bottom, so as to face the user The front side is an inclined surface. A top plate 12 is provided at the top between the two first side plates 11 , and a rear side plate 13 is provided at the rear end between the two first side plates 11 .

[0038] A panel 14 is provided between the front ends of the two first side panels 11 , and an opening 141 is opened on the panel 14 , communicating with ...

Embodiment 2

[0069] see Figure 11 with Figure 12 , in this embodiment, the difference from the first embodiment above is that the first ternary fan system 41 and the second ternary fan system 42 share the same volute 44, that is, the first ternary fan system 41 of the first ternary fan system 41 The first three-way impeller 412 and the second three-way impeller 422 of the second three-way blower system 42 are both arranged in the same volute 44 .

[0070] A mounting plate 45 is arranged between the two ternary impellers, thereby separating the two ternary impellers on both sides of the mounting plate 45, and the mounting plate 45 extends to the top of the volute 44, thereby dividing the volute 44 into two The first oil fume passage 441 and the second oil fume passage 442 are independent. The driving motor 43 passes through the mounting plate 45 and is connected and fixed with the mounting plate 45 .

[0071] In this embodiment, the air outlet cover 5 only includes a cover body 51 and ...

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Abstract

The invention discloses a near-suction range hood. The near-suction range hood comprises a shell, a cabinet and a fan system, wherein the cabinet and the fan system are located above the shell. The shell comprises a panel which is located at the front end and is inclined to the horizontal direction. The near-suction range hood is characterized in that the fan system comprises a first three-elementfan and a second three-element fan which are arranged in parallel; the fan system is arranged in the cabinet, at least two smoke guide plates are arranged on the front side of the panel, and the smoke guide plates are arranged on the front side of the panel and are arranged side by side in the left-right direction at intervals; an air inlet channel is formed by gaps between the smoke guide platesand the panel and gaps between adjacent smoke guide plates; and at least one of the smoke guide plates can stretch relative to the panel so as to be close to the panel to close the air inlet channelor be away from the panel to open the air inlet channel. At least two smoke guide plates which are arranged side by side and are arranged at intervals are arranged on the front side of the panel, so that airflow passing through an outer rectifying layer can be effectively segmented, rectified and guided, turbulent flow and turbulence in the airflow are reduced, and smooth airflow is formed.

Description

technical field [0001] The invention relates to kitchen appliances, in particular to a near-suction range hood. Background technique [0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Generally, range hoods include top-suction and near-suction range hoods. Near-suction range hoods use vortex wind pressure to move away, and absorb most of the fumes that are close to the stove in an arc, which can reduce adverse effects on human health. Influence, and the power source is closer to the stove, basically it will not reduce the suction effect of the power source. [0003] For example, the Chinese patent application number 201320064301.1 discloses a highly efficient and environmentally friendly side suction range hood, which includes a deflector with an air inlet and a fan system behind the deflector. A top plate is arranged above the plate, and a smoke baffle is arranged in front of the air inlet. The gap between the deflector and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 王青山周佳杰梁雪斐刘逸茅忠群诸永定刘戈
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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