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Volute-free air bellow and desktop range hood

A range hood and no volute technology is applied in the field of voluteless bellows and desktop range hoods, which can solve the problem of high noise of desktop range hoods, and achieve the effects of eliminating abnormal noise, reducing noise peaks and improving quality.

Pending Publication Date: 2022-01-11
HANGZHOU ROBAM APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a volute-less bellows and desktop range hood to solve the technical problem of excessive noise of the desktop range hood in the prior art to a certain extent

Method used

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  • Volute-free air bellow and desktop range hood
  • Volute-free air bellow and desktop range hood
  • Volute-free air bellow and desktop range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] see Figure 1 to Figure 13 As shown, the embodiment of the present application provides a volute-less bellows 2 for a desktop range hood 1 , the volute-less bellows 2 includes a volute-free box 20 and an impeller disposed in the volute-less box 20 21, so that the impeller 21 can rotate in the case 20 without volute.

[0062] The impeller 21 has an air inlet end 210 and an air outlet end 211. The volute-less casing 20 is provided with an air inlet 206 and an air outlet 207. The air inlet 206 faces the air inlet 210, and the air outlet 207 faces the air outlet 211. face.

[0063] Therefore, when the impeller 21 is running, the air inlet end 210 of the impeller 21 sucks the oil fume towards the air inlet 206, and under the action of the work done by the impeller 21, the air outlet end 211 of the impeller 21 discharges the oil fume through the air outlet 207 without volute Box 20.

[0064] In this embodiment, the air inlet 206 is a circle coaxially arranged with the impe...

Embodiment 2

[0092] Embodiment 2 provides a desktop range hood 1, which includes a housing 10 and the volute-less bellows 2 in Embodiment 1. The technical features of the volute-less bellows 2 disclosed in Embodiment 1 are also applicable to this embodiment. For example, the technical features of the volute-less bellows 2 disclosed in Embodiment 1 will not be described repeatedly.

[0093] The volute-less bellows 2 is arranged in the housing 10, and the side wall of the housing 10 facing the air inlet 206 of the volute-less box 20 without the volute-less bellows 2 is provided with an air collecting port, and the outer wall of the housing 10 is facing the air inlet 206 of the volute-less bellows 2. An air outlet is provided on the wall of the air outlet 207 of the volute case 20 .

[0094] Optionally, the side wall of the casing 10 with the air collecting port is the panel 101 of the casing 10, and a processing space is formed between the panel 101 and the front plate 204 of the volute-less...

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Abstract

The invention relates to the technical field of small oil fume suction equipment, in particular to a volute-free air bellow and a desktop range hood. The volute-free air bellow is used for the desktop range hood and comprises a volute-free box body and an impeller arranged in the volute-free box body. The impeller is provided with an air inlet end and an air outlet end. The volute-free box body is provided with an air inlet and an air outlet. The air inlet faces the air inlet end, and the air outlet faces the air outlet end. The desktop range hood comprises a volute-free draught fan. According to the volute-free air bellow and the desktop range hood, on the premise that the air bellow effect equal to that of a traditional volute is achieved, abnormal noise generated when blades of the impeller pass through a volute tongue is eliminated, the noise peak value is reduced, the sound quality is improved, and accordingly the running noise of the desktop range hood applying the volute-free air bellow is reduced.

Description

technical field [0001] The present application relates to the technical field of small range hoods, in particular to a volute-less bellows and a desktop range hood. Background technique [0002] Cooking such as barbecue and hot pot on the dining table is very easy to leave a strong smell on the clothes of the diners, and the large amount of steam and smoke generated during the cooking process also greatly affects the dining experience. In order to absorb oil fumes in time during the above cooking process, so as to purify the space and improve the quality of meals, desktop hoods came into being. [0003] The desktop hood is placed on the dining table, so its volume should not be too large, and in order to achieve the purpose of absorbing oil fume and purifying the air, a certain amount of air volume must be provided. [0004] In view of its limited volume, if the traditional volute 30 is used, the distance between the blade outer edge 31 and the volute tongue 32 of the volut...

Claims

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Application Information

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IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 任富佳温俊生黄禄英李智宝于巍巍
Owner HANGZHOU ROBAM APPLIANCES CO LTD
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