Fan system and range hood using the fan system

Abstract

The invention discloses a fan system, comprising a volute and an impeller arranged in the volute, an air outlet is formed on the volute, an air inlet hole is formed on the volute at the air outlet, and an air inlet is formed on the impeller. There is an air outlet, the air inlet and the air outlet are communicated through a pipeline, and a one-way pressure conduction device is arranged on the pipeline, and the one-way pressure conduction device is based on the relationship between the air inlet and the air outlet. The pressure difference is selectively conducted, so that the gas introduced from the air inlet can be ejected from the air outlet to accelerate the impeller. Also disclosed is a range hood applied with the fan system. Compared with the prior art, the present invention has the advantages that the air outlet of the fan system and the interior of the impeller are connected by pipelines, and the gas at the air outlet can be forced to the air inside the impeller by using the pressure difference between the air outlet of the fan system and the interior of the impeller. The air outlet flows and ejects, and the supercharging mode is turned on to achieve passive acceleration, instantly increase the speed, and increase the intake air volume.

Description

technical field [0001] The invention relates to a power device, in particular to a fan system and a range hood applied with the fan system. Background technique [0002] Since the range hood entered China in the 1990s, it has become an indispensable kitchen appliance for ordinary people. Its main function is to inhale the cooking fume generated by the user through the fan system impeller from the air inlet, use the air inlet filter and impeller to filter the fume, and discharge the filtered fume from the air outlet, thereby completing the purification of the kitchen environment. As the core component of the range hood, the fan system's working status has an important impact on the effect of the range hood. Real-time monitoring of its status and ensuring the smooth flow of the fan system have an important impact on improving the air quality in the kitchen. [0003] In order to ensure that the range hoods on the market do not flow back after being discharged from the range ho...

AI Technical Summary

Problems solved by technology

Although these structures can prevent oil fumes from returning, since the check valve is located in the flow channel, when the range hood works for a certain period of time, a large amount of condensed oil will appear on the check valve of the air outlet mask, or the user does not use the range hood. Frequently, it is easy to cause the non-return valve to be opened in place or unable to open. In addition, due to the performance of the motor in the fan system, when the outlet pressure of the range hood is high, the oil fume cannot be removed smoothly. The above problems will seriously affect the operation of the range hood. , causing users to doubt the performance of range hoods and affecting user experience

[0004] With the continuous improvement of the quality of life, range hood manufacturers continue to pursue large air volume and high wind pressure in order to obtain better range hood effects, and use high wind pressure to forcibly blow the lampblack into the public flue, in order to obtain better user experience. Experience, the existing technology generally obtains better oil absorption effect by increasing the size of the air duct, impeller, motor and other components, improving the performance of the motor, etc. These methods greatly increase the cost, and only the size of a single component is enlarged , the overall performance is still at the same level, wasting resources, and at the same time, if the size of the components is increased, it will affect the kitchen design

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