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Range hood and testing method and testing device thereof

A technology for range hoods and testing methods, applied in the directions of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of poor versatility and high cost, and achieve the goals of accelerating development speed, reducing process cost and installation cost, and improving development speed Effect

Active Publication Date: 2021-11-23
FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a range hood and its testing method and testing device, at least to a certain extent, solves the current scheme of improving the energy efficiency level of the range hood by adjusting the structure of the range hood, which has high cost and general versatility. poor technical issues

Method used

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  • Range hood and testing method and testing device thereof
  • Range hood and testing method and testing device thereof
  • Range hood and testing method and testing device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0118] In some implementation manners, the first determination module 502 is used for:

[0119] Determine the energy efficiency level of the range hood corresponding to each performance point to be selected according to the set efficiency and the fan efficiency corresponding to each performance point to be selected;

[0120] The candidate performance points whose energy efficiency level is not lower than the target level are determined as the target performance points.

[0121] In some implementation manners, the obtaining module 501 is used to:

[0122] Determine the control current according to the set power;

[0123] performing control output on the motor of the fan according to the control current and the set power to obtain a feedback current and a feedback voltage of the motor;

[0124] According to the feedback current and the feedback voltage, it is determined that the fan enters the constant power control.

[0125] In some implementation manners, the obtaining modu...

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Abstract

The invention discloses a testing method of a range hood, the testing method comprises the following steps: performing constant power control on the fan of the range hood according to set power to obtain M performance points to be selected of the fan and fan efficiency corresponding to each performance point to be selected; the performance point to be selected is a data pair of the air volume and the air pressure of the fan when the efficiency of the fan meets a set condition; M is an integer greater than or equal to 1; determining a target performance point from the M performance points to be selected according to the set power and the fan efficiency; the target performance point is the performance point to be selected enabling the energy efficiency grade of the range hood to be not lower than a target grade; and determining target operation parameters of the range hood according to the target performance point. According to the method, the development speed of improving the energy efficiency level of the whole range hood is remarkably increased, and the process cost and the installation cost are reduced.

Description

technical field [0001] The invention belongs to the field of electrical appliances, and in particular relates to a range hood, a testing method and a testing device thereof. Background technique [0002] Due to the requirements of energy saving and emission reduction, the energy efficiency level requirements of various household appliances are constantly increasing. For range hoods, the current solution to improve energy efficiency is mainly achieved by improving the electrical structure and adding new electrical devices. For example, related technology 1 provides a motor speed control device for controlling the air volume of the range hood. By adding a motor speed control device to improve the energy efficiency of the range hood, it not only increases the cost, but also needs to rely on the structure of the whole machine cavity, and the applicability low, and the versatility is not strong; related technology 2 provides a double-inlet sunken volute for range hoods, by using...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00Y02B30/70G01R31/343G01R31/2825F24C15/2021F04D27/001
Inventor 颜雪平
Owner FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD
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