Range hood, and method and system for monitoring air volume of range hood

A technology for monitoring systems and range hoods, applied in the direction of removal of oil fumes, heating methods, lighting and heating equipment, etc.

Active Publication Date: 2014-06-04
GUANGDONG WELLING ELECTRIC MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a method for monitoring the air volume of range hoods to sol...

Method used

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  • Range hood, and method and system for monitoring air volume of range hood
  • Range hood, and method and system for monitoring air volume of range hood
  • Range hood, and method and system for monitoring air volume of range hood

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Experimental program
Comparison scheme
Effect test

Embodiment 3

[0053] Embodiment 3: Only use the running speed n, voltage u and the winding resistance R, winding inductance L, pole pair number p, and back EMF coefficient k of the motor's operating parameters e and so on to establish the air volume model.

[0054] by the formula: u 2 =(k e ×n+ωL d i d ) 2 +(ωL q i q ) 2 ;

[0055] ω=2πpn / 60;

[0056] Among them, among the commonly used surface mount motors: L q = L; L q is the q-axis inductance; L d is the d-axis inductance; i d is the d-axis current; i q is the q-axis current; ω is the angular velocity of the motor.

[0057] In vector control i d =0 control mode can get:

[0058] I=(i 2 d + i 2 q ) 1 / 2 = i q ;

[0059] u 2 =(k e ×n) 2 +(ωL q i q ) 2 ;

[0060] I=g(u,n,L,R)=(u 2 -(k e ×n) 2 ) / (ωL)=(u 2 -(k e ×n) 2 ) / (2πpnL / 60);

[0061] The air volume model formula can be obtained:

[0062] Q=f(u,n,L,R)=C0×g(u,n,L,R)+C1×g 2 (u,n,L,R)+C2×g 3 (u,n,L,R);

[0063] Further, in order to make the obtained...

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Abstract

The invention provides a range hood, and a method and a system for monitoring the air volume of the range hood. The method comprises the steps of establishing an air volume model according to the inherent parameters and the operating parameters of a motor, obtaining the operating parameters and the inherent parameters of the motor in real time, and calculating the real-time air volume of an exhaust outlet by virtue of the operating parameters and the inherent parameters obtained in real time and the air volume model. The operating parameters of the motor and the inherent parameters of the motor are combined to deduce the air volume model, and in the process of controlling the motor to adjust the air output, the real-time air volume is calculated and further used for air volume loop-closed control, and therefore, the air output quantity of the range hood is adjusted in real time to adapt to the change of air pressure.

Description

technical field [0001] The invention belongs to the field of home appliances, and in particular relates to a range hood and a method and system for monitoring the air volume of the range hood. Background technique [0002] The range hood can ensure the effect of its range hood, and the ultimate goal is to ensure sufficient air volume output from the exhaust outlet. At present, range hoods mostly use constant speed or constant current to ensure sufficient air volume output. However, as the air ducts used by people change, the air ducts of residential buildings and community users are different, the floor of the community is different, and the public flue is different, the wind pressure in the air duct changes complicatedly. It cannot meet the change of air volume caused by different wind pressure. For example, between different floors of the community, when low-level users turn on too many range hoods, the static pressure of high-level users will increase, and the constant ...

Claims

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Application Information

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IPC IPC(8): F24C15/20
Inventor 柯文静金万兵
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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