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

A technology of self-adaptive adjustment and fan speed, which is applied in the fields of oil fume removal, application, and household heating, etc. It can solve the problems of inability to timely reflect the oil fume pressure of public flues, inability to achieve fume exhaust effect, and oil fume pollution, and to improve the emission Smoke effect, prevent flue blockage, low cost effect

Active Publication Date: 2012-07-04
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 con

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

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Example Embodiment

[0039] Example 1, see Figure 1~Figure 9 :

[0040] This embodiment discloses a range hood with an adaptively adjustable fan speed. The range hood includes a range hood housing, a motor arranged in the range hood housing, and a speed control circuit capable of controlling the rotation speed of the motor, 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. The sensor can output a voltage signal (it can also be in other modes). Signal), the inductive output terminal of the sensor is connected to the input terminal of the speed regulation control circuit, and the output terminal of the speed regulation control circuit is connected to the motor; the speed regulation control circuit in this embodiment is an existing technology, It is realized by adopting various existing circuit...

Example Embodiment

[0058] Example two, see Picture 10 , Picture 11 :

[0059] The range hood structure of the second embodiment is basically the same as that of 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 of the second chamber and the exhaust port. To show the difference, the structure in the second embodiment that is different from the structure in the first embodiment is indicated by a primed number in the reference numerals, and the remaining structures still retain the same symbols as in the first embodiment.

[0060] The second chamber B'of the second embodiment is a vertically-opened slender channel. The slender channel-shaped cavity not only saves electrolyte, but also makes the sensor detection more sensitive. Once the external air pressure changes, The liquid level in the second chamber B'can change significantly, which is more convenient for detection and improves detec...

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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 realizing self-adaptive adjustment of fan speed. Background technique [0002] At present, most of the oil fume produced by the cooking in the domestic high-rise residential exhaust kitchen adopts the "smoke tube" (the lower part is closed) design. Generally, dozens of users share a common flue. In theory, the flue gas is always pushed upward. The oil fume of each user's home can be discharged along the public flue, but when it encounters the 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. The distance exercise will bring a certain blocking effect, which will increase the internal pressure of the public flue, which will affect the fume exhaust effect of each user's home. [0003] In order to ensure the effect of household cooking fume exhau...

Claims

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Application Information

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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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