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A range hood control system with constant air volume output and its control method

A control method and range hood technology, applied in the direction of oil fume removal, heating method, household heating, etc., can solve problems such as failure, grease contamination, etc., and achieve the effect of small error

Active Publication Date: 2016-06-08
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The range hood has a lot of grease, this kind of sensor is exposed in the air duct, it is easy to be contaminated by grease and become invalid

Method used

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  • A range hood control system with constant air volume output and its control method
  • A range hood control system with constant air volume output and its control method
  • A range hood control system with constant air volume output and its control method

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Embodiment Construction

[0027] A further detailed description will be made below in conjunction with the accompanying drawings and embodiments of the present invention:

[0028] Such as figure 1 As shown, a range hood control system outputting a constant air volume includes a controller 1 connected to a user control panel 2 for the user to input the initial air volume Qu, and a speed sensor 3 for detecting the actual speed n of the motor , a current sensor 4 for detecting the actual current i of the motor, a memory 5 for storing data such as speed N, current I, static pressure P, and air volume Q, wherein the air volume is proportional to the rotational speed, and the static pressure is proportional to the square of the rotational speed , the current is proportional to the cube of the rotational speed, the difference range △Q is set by the controller 1, according to the initial air volume Qu, when the static pressure is 0, the rotational speed N is obtained by querying the memory 5, and the actual ro...

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PUM

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Abstract

The invention discloses a range hood control system with constant air volume output and a control method thereof, comprising a controller connected with a user control panel for the user to input the initial air volume Qu, and a rotational speed for detecting the actual rotational speed n of the motor Sensors, current sensors for detecting the actual current i of the motor, memory for storing data such as speed N, current I, static pressure P, and air volume Q, where the air volume is proportional to the speed, and the static pressure is proportional to the square of the speed. The current is proportional to the cube of the rotational speed. By judging whether the air volume Q is in the difference range △Q, the actual speed N is adjusted to change the air volume Q to achieve the constant air volume output of the range hood.

Description

[technical field] [0001] The invention relates to a range hood control system with constant air volume output and a control method thereof. [Background technique] [0002] Although the nominal air volume of the existing range hood is relatively large, the air volume of the range hood will change with the change of pipeline resistance during operation after installation. When the resistance of the pipe network increases, the air volume of the range hood will decrease, but due to There is no constant flow device in the prior art, even if there is pressure compensation, it is a very rough estimate, the effect is not very good, and the oil fume cannot be completely eliminated. [0003] In addition, although a range hood based on wind speed detection or pressure detection is being developed now, the motor speed is controlled through calculation to achieve the purpose of controlling the flow. But this solution requires the sensor to be installed in the air duct system. The range...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
Inventor 黄启均文士胜闫旺
Owner VATTI CORP LTD
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