Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

a range hood

A range hood and oil cup technology, applied in the field of range hoods, can solve the problem of high noise of range hoods, and achieve the effects of reducing noise radiation to the outside, rational air duct structure, and eliminating hedging losses.

Active Publication Date: 2018-07-17
NINGBO FOTILE KITCHEN WARE CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the turbulence noise of the range hood is directly generated by the centrifugal fan, it mainly comes from the air intake at the air inlet of the centrifugal fan. If the oil fume flow in the oil fume channel in front of the air inlet of the centrifugal fan is chaotic, it will increase the noise caused by turbulence. Conditions, resulting in louder noise from the range hood

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • a range hood
  • a range hood
  • a range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] see Figure 1 to Figure 4 , a range hood, comprising a smoke collection hood 1, a box 2 arranged above the smoke collection hood 1, a fan 3 is arranged in the box 2. An air inlet 11 is provided on the fume collecting hood 1, so that the fan 3 in the box body 2 can suck oily fume into the box body 2 through the air inlet 11 and discharge it to the public flue. An oil cup 6 is arranged at the rear bottom of the fume collecting hood 1 .

[0028] The air inlet 11 is provided with a diversion and muffler device 4 and a filter screen 5, wherein the diversion and muffler device 4 is in the shape of a cone with a small top and a large bottom, such as a cone or a square cone, extending from the bottom of the air inlet 11 into the box body 2 and the filter screen 5 is fixed below the air inlet 11.

[0029] see Figure 5 ~ Figure 7 , The diver...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an extractor hood. The extractor hood comprises an exhaust fume collecting hood body and a box body arranged above the exhaust fume collecting hood body, and an air inlet is formed in the exhaust fume collecting hood body. The extractor hood is characterized in that a flow guide silencing device extending into the box body is arranged at the air inlet and comprises a flow guide cone outer layer and a flow guide cone inner layer which is arranged in the flow guide cone outer layer and used for silencing; and the flow guide silencing device is shaped like a big-bottom-down cone. The flow guide silencing device extending into the box body is arranged at the air inlet and can guide exhaust fume to flow along the lateral wall of the flow guide silencing device, so that eddies and flow separation in exhaust fume flow are reduced, and an air channel structure in the box body is more reasonable and smoother. Meanwhile, the hedging loss caused when exhaust fume flow enters from the four sides is eliminated, part of noise conducted and radiated from the air inlet can be eliminated, and the purpose of noise reduction is achieved.

Description

technical field [0001] The invention relates to kitchen appliances, in particular to a 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 side-suction types. Top-suction range hoods are neat, light, and take up less space. It has more and more widespread applications. The top-suction range hood usually includes a fume collection hood, a fan casing positioned on the fume collection hood, and a volute, an impeller and a motor for driving the impeller are installed in the fan casing. [0003] Commonly used top-suction range hoods, such as a range hood disclosed in Chinese Patent Application No. 201410704669.9, include a smoke collection hood with an air suction port, a wind cabinet arranged on the top of the smoke collection The fan with a volute inside, through the action of the fan, discharges the gas in the air cabinet and forms a negative pressure ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
CPCF24C15/20F24C15/2035
Inventor 刘逸梁雪斐周佳杰王青山茅忠群诸永定刘戈
Owner NINGBO FOTILE KITCHEN WARE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com