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Range hood capable of self-adaptively regulating rotating speed of fan

A technology of self-adaptive adjustment and fan speed, applied in the direction of oil fume removal, application, household heating, etc., can solve the problems of unable to reflect the oil fume pressure of public flue in time, unable to achieve smoke exhaust effect, oil fume pollution, etc., to improve exhaust Smoke effect, prevent flue blockage, low cost effect

Active Publication Date: 2015-04-01
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patent utilizes the principle of light intensity attenuation caused by the absorption and reflection effect of oil fume on light, adopts the photoelectric detection method to measure the oil fume concentration, and converts the change of oil fume concentration into an electrical signal and outputs it to the control circuit, and the control circuit adjusts the ventilation of the ventilation equipment accordingly. However, the oil fume detection and control device in this patent is installed on the main engine of the range hood, and it detects the concentration of indoor oil fume, which cannot reflect the oil fume pressure of the public flue in time. In actual use, when the external oil fume pressure When the motor is still running at the current fixed power level, the motor automatic adjustment device will start only when a certain amount of fume is generated in the room. The disadvantage is that a large amount of fume pollution will still be generated indoors during use, and the motor The speed adjustment action lags behind the actual oil fume pressure change, and the ideal smoke exhaust effect cannot be achieved

Method used

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  • Range hood capable of self-adaptively regulating rotating speed of fan
  • Range hood capable of self-adaptively regulating rotating speed of fan
  • Range hood capable of self-adaptively regulating rotating speed of fan

Examples

Experimental program
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Embodiment 1

[0039] Embodiment one, see Figure 1 to Figure 9 :

[0040] This embodiment discloses a range hood whose fan speed can be adaptively adjusted. The range hood includes a range hood housing, a motor disposed in the range hood housing, and a speed regulation control circuit capable of controlling the motor speed, wherein the motor The air outlet is connected to the air outlet through the exhaust pipe, and the air outlet is connected to the public flue. The air outlet of the range hood is also provided with a sensor that can detect the pressure change of the public flue. Signal), the induction output end of the sensor is connected with the input end of the speed control circuit, and the output end of the speed control circuit is connected with the motor; the speed control circuit in the present embodiment is a prior art, can It is realized by using various existing circuit structures, and this embodiment does not go into details. In addition, the installation method of the range ...

Embodiment 2

[0058] Embodiment two, see Figure 10 , Figure 11 :

[0059] The structure of the range hood in the second embodiment is basically the same as that in the first embodiment, the difference between the two lies in the specific shape of the second chamber and the exhaust port in the sensor, and the communication mode between the second chamber and the exhaust port. To show the difference, the structures in the second embodiment that are different from the first embodiment are represented by numbers with a prime in the reference numerals, and the rest of the structures still retain the same symbols as those in the first embodiment.

[0060] The second chamber B' of the second embodiment is a vertically opened slender channel. The cavity in the shape of the slender channel not only saves the electrolyte, but also makes the detection of the sensor more sensitive. Once the external air pressure changes, the The liquid level in the second chamber B' can be significantly changed, wh...

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PUM

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Abstract

The invention discloses a range hood capable of self-adaptively regulating the rotating speed of a fan. The range hood comprises a range hood shell, a motor arranged in the range hood shell and a speed regulation control circuit capable of controlling the rotating speed of the fan, wherein the motor is connected with an air outlet through an exhaust pipeline; and the air outlet is communicated with a public flue. The range hood is characterized by being provided with a sensor capable of detecting the pressure variation of the public flue, wherein an induction output end of the sensor is connected with an input end of the speed regulation control circuit; and an output end of the speed regulation control circuit is connected with the motor. When the pressure variation of the public flue is detected by the sensor, a corresponding decision is made; according to output power of a motor system which is required under corresponding pressure, the rotating speed of the fan of the range hood can be self-adaptively regulated, so that the smoke exhausting effect of the public flue is improved, and the flue is prevented from being plugged; and simultaneously, cooking fumes in a room can be smoothly removed, and a smoke exhaust environment of a kitchen is effectively improved.

Description

technical field [0001] The invention relates to a range hood, in particular to a range hood capable of self-adaptive adjustment of fan speed. Background technique [0002] At present, most domestic high-rise residential kitchens use the "smoke pipe" (the lower part is closed) design for cooking fumes. Generally, dozens of users share a public flue. Theoretically, the smoke is always pushed upwards. It can make the oil fume of each user's family be discharged along the public flue, but when encountering the stage of concentrated use of multiple range hoods on different floors (such as cooking time), a large amount of oil fume is discharged into the public flue, and the oil fume passes through the flue for a long time After the distance exercise, it will bring a certain blocking effect, which will increase the internal pressure of the public flue, thus affecting the exhaust fume effect of each user's family. [0003] In order to ensure the effect of household oil fume exhaust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
Inventor 方献良陈旭波茅忠群诸永定
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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