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CN-121993825-A - Self-cleaning lampblack interception structure of smoke exhaust ventilator based on bionic cilia array

CN121993825ACN 121993825 ACN121993825 ACN 121993825ACN-121993825-A

Abstract

The application discloses a self-cleaning lampblack interception structure of a lampblack absorber based on a bionic cilia array, which is arranged at an air inlet of the lampblack absorber and mainly comprises a cilia array component, a vibration driving component and an oil collecting component. The cilia array component adopts a bionic multistage layered design and comprises a bottom hard cilia layer used for collision interception of large-particle oil drops, a middle elastic cilia layer used for adsorbing medium-particle oil drops and a top superfine fiber layer used for capturing micro-nano oil mist. The vibration driving component is connected with and drives the cilia array component to perform high-frequency micro-vibration, so that adsorbed oil drops are promoted to be converged and fall off. The application obviously improves the oil fume purifying efficiency and reduces the maintenance frequency through the synergistic effect of multistage interception and autonomous cleaning, and is suitable for kitchen environments with high temperature, high humidity and high greasy dirt.

Inventors

  • HE GUANGYAO
  • FANG GUANGMING

Assignees

  • 广东美至智能厨房电器有限公司

Dates

Publication Date
20260508
Application Date
20260205

Claims (9)

  1. 1. A smoke ventilator self-cleaning oil smoke interception structure based on bionical cilia array sets up in smoke ventilator air intake department, its characterized in that includes: The cilia array component comprises a base and a plurality of layers of cilia structures fixed on the base, wherein the plurality of layers of cilia structures are sequentially arranged along the airflow direction, and the cilia diameter of each cilia layer is also reduced layer by layer for classifying and intercepting the oil smoke particles with different particle diameters; the vibration driving assembly is in transmission connection with the cilia array assembly and is used for driving the cilia array assembly to vibrate so as to enable intercepted oil drops to be converged and fall off; and the oil collecting component is arranged below the cilia array component and is used for collecting the dropped oil drops.
  2. 2. The smoke exhaust ventilator self-cleaning smoke intercepting structure according to claim 1, wherein said multi-layered cilia structure comprises a bottom cilia layer, a middle cilia layer and a top cilia layer sequentially distributed along the direction of air flow; the bottom cilia layer comprises cilia made of hard materials, and the cilia are vertically or approximately vertically arranged; the middle cilia layer comprises cilia made of elastic materials, and the cilia are arranged at an inclined angle relative to the vertical direction; The top cilia layer comprises cilia of ultra fine fiber material, which are arranged horizontally or approximately horizontally.
  3. 3. The range hood self-cleaning fume interception structure of claim 2, wherein: the cilia diameter of the underlying cilia layer is 100 μm to 1000 μm, preferably 500 μm; the middle cilia layer has a cilia diameter of 50 μm to 500 μm, preferably 200 μm; the cilia diameter of the top cilia layer is 0.1 μm to 10 μm, preferably 1 μm.
  4. 4. The range hood self-cleaning fume interception structure of claim 2, wherein: the cilia of the middle cilia layer are arranged at an inclination angle of 30 DEG to 60 DEG, preferably 45 DEG, and the interval between adjacent cilia in each cilia layer is 1 to 3 times, preferably 1.5 to 2 times, the diameter of the cilia of the layer.
  5. 5. The self-cleaning fume interception structure of the range hood according to claim 2, wherein the hard material is nano ceramic, metal or high-temperature resistant hard polymer; The elastic material is high-temperature resistant silica gel, fluororubber or elastomer composite material; the superfine fiber material is an electrostatic spinning nanofiber, glass fiber or composite nanofiber membrane material.
  6. 6. The range hood self-cleaning fume interception structure according to claim 1, wherein said vibration drive assembly comprises a drive motor, an eccentric wheel and a drive rod; The output shaft of the driving motor is connected with the eccentric wheel, and the eccentric wheel is hinged or fixedly connected with the base of the cilia array assembly through the transmission rod; The drive motor drives the cilia array assembly to vibrate slightly, preferably 500Hz, at a frequency of 100Hz to 2000 Hz.
  7. 7. The smoke exhaust ventilator self-cleaning smoke interception structure according to claim 6, wherein the driving motor is a micro brushless motor or a piezoelectric ceramic vibrator, and the vibration driving assembly further comprises a shock pad arranged between the driving motor and a fixed point of the smoke exhaust ventilator shell.
  8. 8. The range hood self-cleaning fume interception structure according to claim 1 wherein said oil collection assembly comprises an oil collection sump and a removable oil cup; The oil collecting tank is positioned under the cilia array component or obliquely below the cilia array component, the edge of the oil collecting tank extends upwards to form a guide wall, and the oil cup is connected with an outlet of the oil collecting tank in a clamping, threaded connection or magnetic adsorption mode.
  9. 9. The self-cleaning fume interception structure of a range hood according to any one of claims 1 to 8, wherein a base of said cilia array assembly is detachably connected to an inner wall of an air inlet of the range hood, and said cilia array assembly is integrally inclined with respect to a horizontal plane by an angle of 20 ° to 70 ° to facilitate a guiding flow of oil droplets.

Description

Self-cleaning lampblack interception structure of smoke exhaust ventilator based on bionic cilia array Technical Field The invention relates to the technical field of kitchen appliances, in particular to a lampblack filtering and cleaning device for a range hood, and especially relates to a multi-level cilia interception structure based on a bionic principle and a self-cleaning system thereof. Background The smoke exhaust ventilator is an indispensable electrical appliance in modern kitchens, and has the main function of sucking oil smoke, water vapor and peculiar smell generated in the cooking process so as to keep kitchen air clean. At present, the oil smoke separation technology of the mainstream smoke exhaust ventilator mainly depends on negative pressure generated by combining a filter screen with a fan. When the oil fume flows through the filter screen, part of oil drops are captured by the filter screen due to collision, interception or diffusion. However, the prior art has obvious defects that firstly, the particle size distribution of the oil fume particles is extremely wide, and oil mist from large particle oil drops of hundreds of micrometers to submicron or even nanometer oil mist is distributed. The filter screen with single aperture or material is difficult to realize high-efficiency trapping in the full grain size range, and particularly has limited interception efficiency to micro-nano oil mist, so that part of harmful substances can still be discharged into an indoor or public flue to cause pollution. Secondly, the trapped greasy dirt can accumulate on the filter screen rapidly, not only increases windage and reduces suction efficiency, but also is difficult to automatically clean after condensation, and has to be frequently manually disassembled and cleaned, so that the user experience is poor and the maintenance cost is high. In addition, the common filter screen is easy to deform, corrode or block under the conditions of high temperature, high humidity and greasy dirt erosion for a long time, and the service life is influenced. In nature, many organisms such as tentacles, respiratory cilia, etc. of certain aquatic organisms have the ability to efficiently capture airborne particulates and self-clean. Inspired by the method, the bionic structure is introduced into the oil smoke filtering field, and the bottleneck of the prior art is hopeful to be broken through. Although some researches on using fiber materials for air filtration exist, how to organically combine a multi-stage bionic cilia structure with the actual working conditions of a range hood, such as high temperature, high oil and self-cleaning, and design a set of stable, efficient and maintenance-free interception system is still a technical problem to be solved. Disclosure of Invention The application aims to overcome the defects of the prior art, and provides a self-cleaning lampblack interception structure of a lampblack absorber based on a bionic cilium array. The integrated automatic self-cleaning system aims to realize full spectrum and high-efficiency graded interception of large, medium and small micro-nano oil smoke particles, can automatically collect and discharge captured oil drops, and is suitable for severe kitchen environments and keeps long-term stable operation. In order to solve one of the technical problems, the following technical scheme is adopted: The application provides a self-cleaning smoke interception structure of a smoke exhaust ventilator based on a bionic cilia array, which is arranged at an air inlet of the smoke exhaust ventilator and comprises the following components: The cilia array component comprises a base and a plurality of layers of cilia structures fixed on the base, wherein the plurality of layers of cilia structures are sequentially arranged along the airflow direction, and the cilia diameter of each cilia layer is also reduced layer by layer for classifying and intercepting the oil smoke particles with different particle diameters; the vibration driving assembly is in transmission connection with the cilia array assembly and is used for driving the cilia array assembly to vibrate so as to enable intercepted oil drops to be converged and fall off; And the oil collecting component is arranged below the cilia array component and is used for collecting the dropped oil drops. In order to better realize the aim of the invention, the invention also has the following better technical scheme: In some embodiments, the multi-layered cilia structure comprises a bottom cilia layer, a middle cilia layer, and a top cilia layer sequentially distributed in the direction of air flow, the bottom cilia layer comprising cilia made of hard materials, the cilia being arranged vertically or approximately vertically, the middle cilia layer comprising cilia made of elastic materials, the cilia being arranged at an oblique angle with respect to the vertical, and the top cilia layer comprising cilia made of ultra