System and method for controlling range hood capable of outputting constant air volume

A technology of a control system and a control method, which is applied in the fields of oil fume removal, heating mode, and household heating, etc., can solve problems such as failure and grease contamination, and achieve the effect of small error

Active Publication Date: 2014-02-12
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • System and method for controlling range hood capable of outputting constant air volume
  • System and method for controlling range hood capable of outputting constant air volume
  • System and method for controlling range hood capable of outputting constant air volume

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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 system and a method for controlling a range hood capable of outputting constant air volume. The system comprises a controller; the controller is connected with a user control panel, a speed sensor, a current sensor and a storage, wherein the user control panel is used for enabling a user to input the initial air volume Qu; the speed sensor is used for detecting the actual speed n of a motor; the current sensor is used for detecting the actual current i of the motor; the storage is used for storing data such as the speed N, the current I, the static pressure P and air volume Q; the air volume is directly proportional to the speed; the static pressure is directly proportional to the square of the speed; the current is directly proportional to the cube of the speed. Through the judging whether the air volume Q is within the difference value delta Q range or not, the actual speed N is adjusted to change the air volume Q to achieve the purpose that the range hood can output constant air volume.

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 Applications(China)
IPC IPC(8): F24C15/20
Inventor 黄启均文士胜闫旺
Owner VATTI CORP LTD
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