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Control device and method for range hood and range hood

A range hood and control command technology, which is applied in the direction of oil fume removal, application, household stoves, etc., can solve the problem of not considering the working conditions of the range hood user

Active Publication Date: 2016-06-15
BSH ELECTRICAL APPLIANCES JIANGSU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the motor control commands corresponding to each gear position are set in advance, the user's working conditions in the actual use environment of the range hood are not considered; therefore, the existing gear switches and the user's working conditions are not very good. Matches happen from time to time

Method used

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  • Control device and method for range hood and range hood
  • Control device and method for range hood and range hood
  • Control device and method for range hood and range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] An embodiment of a range hood provided by the present invention includes a control device, a motor, and an impeller driven by the motor. The motor adopts a stepless speed regulating motor, specifically, a DC brushless motor can be used. The control device includes a power switch 1, a gear switch 2, a display unit 3, a limit mode selection device and an adjustment unit 5. The limit mode selection device includes a control switch part for the user to control the limit mode selection device. The control switch part includes a start switch 4, such as figure 2 Shown. After the power switch 1 is closed by the user, the control device is powered on; after the power switch 1 is opened by the user, the control device is powered off. The gear switch 2 includes three common gears for selection, such as figure 2 As shown, they correspond to three gears, high, medium, and low. The gear switch 2 is used for the user to perform conventional gear control on the range hood. The cont...

Embodiment 2

[0070] The present invention also proposes another embodiment 2 of the range hood. The embodiment 2 of the range hood is further improved on the basis of the embodiment 1 of the above range hood. The main differences between Embodiment 2 of the range hood and Embodiment 1 of the above range hood are as follows.

[0071] Before the range hood leaves the factory, the following information is stored in the limit mode selection device: the contour map of the three technical parameters of the range hood noise, air volume Q, and motor speed n, and the equivalent value of the preset air volume lower limit threshold Line, the speed solving equation for solving the speed value based on the current value, and the air volume solving equation for solving the air volume value based on the current value.

[0072] The speed solving equation is obtained by the following method: sending an experimental control command to the motor (the experimental control command is the same as the experimental co...

Embodiment 3

[0077] The present invention also proposes another embodiment 3 of the range hood, which is further improved on the basis of the embodiment 1 of the above range hood. The main differences between Embodiment 3 of the range hood and Embodiment 1 of the above range hood are as follows.

[0078] Before the range hood leaves the factory, the following information is stored in the limit mode selection device: the contour map of the three technical parameters of the range hood noise, air volume Q, and motor speed n, and the equivalent value of the preset air volume lower limit threshold Line, and the air volume solving equation based on the current value to solve the air volume value.

[0079] The air volume solving equation is obtained by the following method: control the motor at a constant speed n 0 Running down, from the static pressure of 0Pa to the point of maximum static pressure, the discrete current air volume points are obtained, and an air volume solution equation of not less t...

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PUM

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Abstract

The invention provides novel improvement of a range hood and a control method and device for the range hood. The range hood provided by the invention comprises a motor and an impeller driven by the motor and further comprises an extreme mode selecting device, and the extreme mode selecting device stores control commands corresponding to the motor when the value of air volume reaches or is the nearest to a preset lower limit air volume threshold value under different working conditions. The extreme mode selecting device is further used for determining user working conditions, selecting the stored control commands corresponding to the motor when the value of air volume reaches or is the nearest to the preset lower limit air volume threshold value under the user working conditions and storing and / or operating the selected control commands. By means of the technical scheme, the range hood can be controlled on the basis of the user working conditions.

Description

【Technical Field】 [0001] The invention relates to the field of range hoods, the field of control devices for range hoods, and the field of control methods for range hoods. 【Background technique】 [0002] Existing range hoods are generally provided with gear switches for users to select gears. Because the motor control commands corresponding to each gear are set in advance, the user's operating conditions of the range hood in the actual use environment are not considered; therefore, the existing gear switches and user operating conditions are not very good Matching happens from time to time. [0003] Unless there is sufficient evidence to support it, the prior art described here does not mean that these prior art are known to those of ordinary skill in the field involved in the present application before the filing date of this application. [Content of the invention] [0004] The main purpose of the present invention is to propose new improvements to the control device for the rang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
Inventor 杨磊刘卫岳
Owner BSH ELECTRICAL APPLIANCES JIANGSU