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Oil fume suction control method of intelligent breathing range hood and range hood

A control method and a technology for a range hood, which are applied in the fields of removing oil fume, heating method, and household heating, etc., can solve the problems such as the amount of oil fume cannot be accurately reflected, the amount of oil fume generated is small, and the detection method is defective, so as to achieve reliable performance, Reduced impact, low cost effects

Active Publication Date: 2014-12-31
JOYOUNG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the intelligence of range hood control, some manufacturers have set up detection units, such as linkage with the cooker, temperature detection, smoke concentration detection, etc., to adjust the fan speed by detecting the firepower of the cooker, or the temperature value of the cooker, or the concentration value of oil smoke , but the firepower and temperature of the cooker cannot accurately reflect the amount of oily fume produced. For example, when a pan is hot or cooking with high firepower, the cooker has high firepower and high temperature but the amount of oily fume is small. Detection Usually, due to the adhesion of oil fume, the durability of the long-term use of the detection device is poor, and the device usually fails in one or two years, so the detection method that relies on the concentration detection device has defects

Method used

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  • Oil fume suction control method of intelligent breathing range hood and range hood
  • Oil fume suction control method of intelligent breathing range hood and range hood
  • Oil fume suction control method of intelligent breathing range hood and range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The present invention is a control method based on the study of the curve of the amount of oil fume produced under the state of food cooking. The generation of oil fume is related to temperature. Taking soybean oil as an example, the smoke point is 234°C. The actual oil fume is caused by local heating. It will deviate from the theoretical value. According to the Fourier heat conduction law, the heat absorbed by an object per unit time is proportional to the temperature difference, so when the temperature is T, the heat absorbed per unit time is Q=K(a-T), and the unit The increase in temperature within the time is dT / dt=Q / (mc)=K(a-T) / (mc), when the initial value t=0, T=b, the function of temperature change with time is: T=a- (a+b)e^(-kt / mc), where m: the mass of the heated object, c: the specific heat capacity (c water = 4.2×103J / (kg / ℃)), a: the temperature rise value, K is the cooking oil Temperature Coefficient. In the preheating and flaming part, the amount of soot g...

Embodiment 2

[0036] The difference between this embodiment and the range hood of Embodiment 1 is that the main controller of the range hood is provided with a signal receiving unit linked with the cooker, and the cooker is provided with an ignition signal transmitting unit. The signal transmitting unit transmits a trigger signal to the signal receiving unit of the range hood, the main controller triggers and starts the intelligent breathing program through the received trigger signal, and the range hood starts to execute the smoking control method.

[0037] The difference between the smoking control method in this embodiment and Embodiment 1 is that, as Figure 4 , Figure 5 , including the following stages:

[0038] Pre-processing stage: the main controller controls the operation of the middle gear of the fan. The speed of the fan is 800≤V<900rpm. The running time of the phase ends at 60-80s after the start of the smoking control method, and preferably ends after 60s after the start;

...

Embodiment 3

[0045] The difference between this embodiment and Embodiment 1 is that in this embodiment, the motor adopts a DC motor, and under the super high gear, there are multi-level gears for smooth speed regulation, such as Image 6 , the smoking control methods include:

[0046] Stir-fry stage: the stir-fry stage is executed synchronously when the smoking control method is started. The main controller controls the super-high-end operation of the fan. Adopt deep breathing and smoking method, continue to run for 180s in the frying stage, and then downshift to enter the next stage;

[0047] Post-processing stage: the main controller controls the fan to run at a speed of 850 rpm, and the post-processing stage lasts for 240s;

[0048] Intelligent cruising stage: It starts synchronously when the post-processing stage is started. The air duct resistance detection device detects the air duct resistance of the range hood in real time, and compares it with the threshold set for the correspond...

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Abstract

The invention discloses an oil fume suction control method of an intelligent breathing range hood. The range hood comprises a machine body, a fan and a main controller, wherein the main controller controls the fan to operate, the control method comprises a stir-frying stage and a post-processing stage, the range hood is provided with an ultra-high gear, the revolving speed of the fan under the ultra-high gear V is not less than 1000 and not more than 1250 rpm (Revolutions Per Minute), the fan is operated under the ultra-high gear during the stir-frying stage, the stir-frying stage is started after the oil fume suction control method is carried out for 0-80 seconds, and ended after the oil fume suction control method is carried out for 100-180 seconds, and the fan downshifts to operate after the stir-frying stage is ended. According to the invention, the range hood carries out an intelligent multistage breathing control method to realize maximum utilization of energy efficiency; meanwhile, the range hood disclosed by the invention lowers impacts of range hood noises on users at the greatest extent to optimize use feel of the range hood.

Description

technical field [0001] The invention relates to the field of kitchen appliances, in particular to a smoking control method for an intelligent breathing range hood and a range hood adopting the control method. Background technique [0002] Existing range hoods usually have three or four gears, and the user manually selects the required gear according to actual needs. Once the gear is selected, the fan runs at the set speed of the gear until the gear is switched. or off. In order to improve the intelligence of range hood control, some manufacturers have set up detection units, such as linkage with the cooker, temperature detection, smoke concentration detection, etc., to adjust the fan speed by detecting the firepower of the cooker, or the temperature value of the cooker, or the concentration value of oil smoke , but the firepower and temperature of the cooker cannot accurately reflect the amount of oily fume produced. For example, when a pan is hot or cooking with high firep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
Inventor 朱泽春陈震赵沛彪
Owner JOYOUNG CO LTD
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