WO2019056654A1 - 一种风屏静电免清洗脱排油烟机 - Google Patents

一种风屏静电免清洗脱排油烟机 Download PDF

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Publication number
WO2019056654A1
WO2019056654A1 PCT/CN2018/000329 CN2018000329W WO2019056654A1 WO 2019056654 A1 WO2019056654 A1 WO 2019056654A1 CN 2018000329 W CN2018000329 W CN 2018000329W WO 2019056654 A1 WO2019056654 A1 WO 2019056654A1
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Prior art keywords
electrostatic
wind screen
exhaust duct
wind
air
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PCT/CN2018/000329
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English (en)
French (fr)
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徐志强
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徐志强
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Publication of WO2019056654A1 publication Critical patent/WO2019056654A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the invention belongs to the technical field of a range hood, and relates to a range hood for civil or industrial purification of soot, in particular to a wind screen static cleaning-free exhaust hood.
  • the range hood is a kitchen appliance for purifying the kitchen environment. It is installed above the kitchen health-saving range hood stove, and uses a fan to remove the kitchen fumes containing a large amount of particles by cyclone separation to burn the waste of the stove and The fumes that are harmful to the human body during the cooking process are quickly pumped away, discharged outside, reduce pollution, purify the air, and have the safety protection effect of anti-virus and explosion-proof. After the exhaust hood is used for a period of time, it is necessary to remove the fan and the range hood for cleaning, which is difficult to remove and wash, and the simple cleaning is to deal with the oil, and a professional cleaning agent is needed for cleaning.
  • the human body some of which blow upwards and do not receive the wind; or blow up to form the wind screen, but the hole spacing is large, so that there is a gap between the wind columns to form a non-closed screen, so that the oil and gas leaks, can not reach the most ideal state; Or although a slit can be formed into a continuous wind screen, the long diameter (or slit width) ratio of the blowing path is small or too small, so that the sheet wind of the wind screen is less rigid or too small, and the oil smoke is weak or oil is isolated.
  • the pan is blown out and rushed out of the wind screen; or the single-sided and three-sided wind screens can not eliminate the smoke in all directions, and the three-sided and the opposite baffle increase the cost and reduce the aesthetics.
  • the technical problem to be solved by the present invention is to provide a wind screen electrostatic cleaning-free exhaust hood having a simple structure, low production cost and high fume filtration efficiency in view of the above-mentioned drawbacks in the prior art.
  • the invention provides a wind screen static cleaning-free exhaust hood, comprising a cone wind screen, and an exhaust duct corresponding to the wind screen at the top of the cone screen, wherein the cone screen is provided at the bottom thereof a closed wind screen frame, and a main air pipe is horizontally disposed along an upper side of the wind screen frame, and a plurality of communicating long holes are arranged above the main air pipe, and a plurality of the long holes form a continuous arrangement of axially wide slits
  • the thickness of the thin wall sandwiched between 0.5 mm and less than 3 mm is less than or equal to 4 mm in the transverse (or longitudinal) length of each slit, and the long hole has a long slit ratio or an aspect ratio greater than 20, and the wind cone points to the Inside the hood of the exhaust duct, and blowing from bottom to top.
  • the air inlet of the long hole is in communication with the air inlet of the main air pipe, and the long hole is a narrow slit to add a thin spacer, and a large long slit (width) ratio or a long diameter ratio to form a rigid rectifying wind .
  • the central axes of the plurality of long holes are directed to the tapered top end of the tapered wind screen or the exhaust pipe inlet.
  • the air inlet is in communication with the air blower.
  • the bottom of the wind screen frame is evenly arranged with a plurality of micro-high feet.
  • a heating wire is arranged in the casing or the interlayer of the exhaust duct, and the electric heating wire can electrically heat the shell of the exhaust duct body.
  • the electrostatic filter disposed at the outlet of the exhaust duct is further included.
  • the electrostatic filter is obliquely disposed at an outlet of the exhaust duct.
  • the electrostatic filter is a metal mesh coated with plastic having a certain dielectric constant.
  • plastic wool is provided on the inner surface of the metal screen.
  • the metal filter is connected to an electrostatic generator, and the electrostatic generator operates in a capacitor storage mode circuit.
  • an oil storage tank is disposed on the exhaust duct below the metal screen.
  • the oil sump is provided with an oil drain hole at the bottom.
  • the electrostatic filter at the outlet of the exhaust duct can be detached from the card slot installed at the outlet.
  • a plurality of wall-conducting baffles are arranged at the inlet of the exhaust duct to guide the air to the outlet of the exhaust duct.
  • the present invention adopts the above technical solutions, and has the following technical effects compared with the prior art:
  • the wind screen static cleaning-free exhaust hood of the invention rectifies the incoming blower wind through the main air pipe and the long hole on the windshield frame of the countertop or sinking on the countertop, and the cone wind screen can be
  • the formed accelerated oil fume gas is blown to the electrostatic filter through the exhaust duct containing the deflector, adsorbs the oil and gas through the electrostatic filter, sinks the smoke particles and stores in the oil storage tank; and uniformly buryes the exhaust duct
  • the dense heating wire in the interlayer of the casing causes the exhaust duct to heat as a whole, so as to prevent the oil fumes from condensing in the inner cavity of the exhaust duct due to condensation, and not accumulating oil smoke, thereby achieving the purpose of cleaning and discharging the oil particles and the smoke particles.
  • the clean-elution range hood has a simple structure and low cost, and the efficiency of sealing and filtering the soot can reach 99% or more, and has a no-clean function.
  • FIG. 1 is a structural diagram of a wind screen frame and an exhaust duct of a wind screen static cleaning-free exhaust hood according to the present invention:
  • FIG. 2 is a structural view of an electrostatic filter in a wind screen electrostatic cleaning-free exhaust hood according to the present invention
  • FIG. 3 is a schematic diagram of a circuit of a capacitive charging type electrostaticizer in a wind screen electrostatic cleaning-free exhaust hood according to the present invention
  • the reference numerals are: 10-cone wind screen, 20-wind screen frame, 21-micro high foot, 22-main air pipe, 23-long hole, 24-air inlet, 30-exhaust pipe, 31 - Card slot, 32-oil reservoir, 33-drain hole, 34-flow deflector, 40-electrostatic filter, 41-metal filter, 42-plastic wool.
  • an embodiment of the present invention provides a wind screen static cleaning-free exhaust hood, including a cone wind screen 10, an exhaust duct 30 connected to the top of the cone wind screen 10 by a wind screen;
  • the inlet of the duct 30 is connected to the top outlet of the cone screen 10 such that the wind screen is all close to the inner cavity of the cone screen 10 and enters the exhaust duct 30.
  • the bottom of the cone screen 10 is provided with a closed wind screen.
  • the frame 20 is a frame frame surrounded by a quadrangle or an ellipse, and has a micro-high foot 21 exposed at the bottom for air entering from the outside when the cooker is burned; and horizontally disposed along the inner side of the wind screen frame 20.
  • the incoming fluid produces significant rectification, depending on the power of the blower, the long seam (width) ratio or length to diameter ratio is greater than 20, the slit width is greater than 0.5 and less than 3 mm, and the thickness of the sandwiched sheet is determined by the transverse (or longitudinal) length of each slit.
  • the central axes of the plurality of long holes 23 are directed to the tapered top end of the tapered wind screen 10 or the inlet of the exhaust duct 30, and the center lines of all the long holes 23 are all aligned with the upper one.
  • the apex or approximate apex of a quadrangular pyramid or an elliptical cone, and the long holes 23 are closely arranged with each other, and the space between the long hole and the long hole is separated by a thin wall, and the existence of the thin wall is favorable for guiding the formation of the tapered wind and forming a rigid rectification. Wind, so it is better to be densely covered.
  • the thickness of the outlet seam is ratio 1
  • the wind side will squeeze each other due to the taper of the appropriate taper, and the thickness of the inlet wind above becomes thicker than 1.4 to 2.5.
  • There is a thin wall isolation so that the gases exhausted from adjacent long holes 23 can adhere to each other to form a seamless wind screen.
  • the air inlet 24 and the air blower (not shown in the figure, which can be placed in the cabinet below the countertop) are connected in two diagonals by a hose, and the wind screen frame is provided with a full-tube equal-pressure rectified gas flow through the air blower.
  • a wind screen static cleaning-free exhaust hood further includes an electrostatic filter 40 disposed at an exit of the exhaust duct 30, the electrostatic filter 40 being detachable Installed in the card slot 31 at the outlet of the exhaust duct 30; the electrostatic filter 40 is a metal screen 41 coated with a plastic having a certain dielectric constant, and a plastic hair 42 is disposed on the inner surface of the metal screen 41.
  • the metal screen 41 is in the form of a plug-in plate that can be inserted into the groove from the side of the outlet end of the exhaust duct 30 and positioned at the outlet end, or withdrawn from the slot; in addition, the exhaust air is also under the metal screen 41
  • An oil reservoir 32 is provided on the pipe 30.
  • the function of the plastic hair 42 is that when the metal screen 41 obtains a suitable electrostatic potential, in addition to adsorbing the oil smoke on the net, the tip of the plastic hair 42 having a suitable dielectric constant is optimally obtained at a proper distance due to charge polarization.
  • the electrostatic force can enhance the electrostatic attraction to absorb oil and smoke particles; preferably, the electrostatic filter is obliquely disposed at the outlet of the exhaust duct, and the electrostatic filter 40 is installed obliquely for the purpose that the oil liquid composed of the particles can follow the trend from the plastic wool 42 It flows onto the metal filter 41 and then slides down to the net, and then descends along the metal filter 41 to the bottom to flow to the oil storage tank 32 and enters the oil drain hole 33. Usually, the oil drain hole 33 can be plugged by the plug.
  • the metal filter 41 is connected to the electrostatic generator, and the electrostatic generator works with the capacitor storage mode circuit, as shown in FIG.
  • the schematic diagram of the circuit of the electrostatic generator if connected to the two diagonals of the metal filter 41, the effect will be better, so that the charge distribution is uniform and the one-sided effect is not easy to occur.
  • Electrostatic generators usually maintain the negative voltage of the negative electrode or the positive electrode in an uninterrupted manner. There is a certain danger in civilian use. It is difficult to ground the other single pole due to the single pole connected to the metal filter, and there is no ground or ground resistance. Exceeding the standard and having a spark discharge, causing a gas explosion.
  • the electrostatic generator is used to operate the capacitor storage mode circuit, that is, the capacitor storage method is replaced, and the capacitor is placed in the insulation box and the connection is always connected.
  • the wind screen static cleaning no-discharge fume hood of the embodiment only needs to be charged for a few minutes to automatically turn off the power when the machine is turned on, and the meal can be finished while maintaining the static oil absorption smoke, and the oil is not conductive, and it will drip down. Automatically neutralize the positive and negative charges at both ends of the liquid droplets generated by the electrostatic force. In principle, it does not consume electricity, and only a small amount of charge in the air will leak a small amount of charge microdischarge reaction.
  • the technical solution adopted by the present invention for implementing the no-clean function is: manufacturing the plastic parts of the exhaust duct 30 according to the principle of electric blanket, and uniformly embedding the electric heating line into the interlayer of the casing plate of the exhaust duct 30, When the solid circuit is energized, it can heat up as a whole. It has been found that the soot often condenses on the inner cavity of the exhaust duct 30 due to condensation. If the inner cavity of the casing is heated to a suitable degree, the soot will not condense, that is, it will not be attached to the inner wall, so There is no need to clean it. The proper housing temperature will make the inner cavity of the exhaust duct 30 almost 100% non-oily.
  • the electric heating lines used above are all low power and consume less electricity.
  • the method for using the wind screen static cleaning-free exhaust hood of the invention is:
  • the rectified emergency fluid of the wind screen 10 When the cooker placed under the wind screen frame 20 ignites the cooking, the rectified emergency fluid of the wind screen 10 has a certain or strong rigidity, which isolates the communication between the inside and the outside air, so that the air is from both sides of the micro-high foot 21
  • the vacant space enters the upward combustion-supporting fire, and the fire has a longer flame and can cover a larger area of the bottom of the pot. Since the wind screen frame 20 has been operated, the blower tube is connected to the air inlet 24 to blow air, and the main air tube 22 is spread throughout the wind screen frame.
  • the airflow enters each of the long holes 23 at the same time, respectively, and through the rectification action, and the long holes 23 are closely arranged, a dense wind screen effect is formed, which generates a dynamic isolation from the outside.
  • the oily smoke is, the cleanliness of the exhaust duct 30 is always kept clean, and at the same time, due to the regularity and high speed of the rectifying wind, the oil and gas is only limited to the inner side of the rectifying wind screen and not to the outer exhaust duct 30.
  • the oil fumes are also not easily attached to the inner cavity wall, so that the two lumens can be used to avoid scrubbing the inner cavity.
  • the metal filter 41 When the oil fume impacts the electrostatic filter 40 at the outlet of the exhaust duct 30, the metal filter 41 is negatively or positively charged by the electrostatic generator, and it is electrostatically applied by a plastic having a certain dielectric constant. Adsorbing the oil fume, and the plastic hair 42 of a suitable length disposed on the metal filter 41, the plastic hair 42 generates the most polar electrostatic force to adsorb the oil fume, and when the oil smoke adsorbed thereon is excessive, The dripping soot mixture is extended by the downwardly inclined plastic hair 42 by gravity and flows down the slope of the metal screen 41 into the oil storage tank 32, and finally drained through the oil drain hole 33.
  • the wind screen electrostatic cleaning-free exhaust hood of the present invention adopts the above multi-pronged method, so that the performance of the existing range hood is comprehensively improved, and the soot discharge rate can reach more than 99%, and No-cleaning, labor saving, saving money, the noise of the blower used does not resonate with the range hood, the blower is set in the sleek lower cooking cabinet (the sound-absorbing material is installed in the cabinet, and the air inlet hole is filled in the bottom of the cabinet to fill the air), thereby reducing and reducing
  • the noise pollution, the wind screen static cleaning-free exhaust hood structure is simple, the shape is simple and beautiful, the production cost is close to the traditional machine, and has a good promotion and application value.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

一种风屏静电免清洗脱排油烟机，包括锥形风屏（10）、与锥形风屏（10）顶端连通的排风管道（30），锥形风屏（10）的底部设置有封闭形的风屏框架（20），且沿风屏框架（20）内侧面水平设置有主气管（22），主气管（22）上方设有若干与其连通的长孔（23），长孔（23）的入气口与主气管（22）的进气口（24）连通。该风屏静电免清洗脱排油烟机，通过风屏框架（20）对进入的风进行整流，加速油烟气的排除；并通过埋设在排风管道（30）夹层内的发热线使排风管道（30）发热，避免油烟凝结在排风管道（30）内腔壁上，达到免清洗脱排油微粒和烟微粒的目的；而且其结构简单，生产成本低，封闭与过滤油烟的效率可达到九成九或以上。

Description

一种风屏静电免清洗脱排油烟机 技术领域
本发明属于油烟机技术领域，涉及一种用于民用或工业净化油烟的油烟机，尤其涉及一种风屏静电免清洗脱排油烟机。
背景技术
脱排油烟机是一种净化厨房环境的厨房电器，其安装在厨房健康节能吸油烟机炉灶上方，使用风机将含有大量微粒的厨房油烟通过旋风分离方式加以脱除，以将炉灶燃烧的废物和烹饪过程中产生的对人体有害的油烟迅速抽走，排出室外，减少污染，净化空气，并有防毒、防爆的安全保障作用。而脱排油烟机在使用一段时间后需拆除风机和油烟机进行清洗，拆洗困难，且简单清洗是处理不掉油污的，需使用专业的清洗剂进行清洗。
目前，在油烟脱排领域尤其是民用、家用脱排油烟机的使用，全世界采用吸力方式，为使排油烟效果好，普遍采用大功率大吸力的办法，同时还存在部分油烟散发在室内及墙上的缺陷，因该方法会使部分油烟产生因气流上升的纹流性质的动能，使油气乱散在外，因此不能实现油烟的完全脱排；另外，以滤网性质过滤油滴也并不能完全滤清油气，因它是机械式的过滤油气，使用小网孔的中滤网会泄漏部分油气，从而使排油烟气附近墙变色；再者，整个系统管道因会吸附油烟气，故还得定时清理管道等处的附着油腻，但还需要使用自动清洗液进行擦拭清除。另外，外界虽有风屏专利方案想隔离油烟，但它们无一不存在以下缺点：或是风从上至下，而下部无接收装置，风吹台面并带被襄油烟气吹向室内与人体，有的向上吹也无接收风的装置；或向上吹形成风屏，但却以孔间距较大，使风柱间有间隙从而形成非密闭屏，让油气泄漏，不能达最理想态；或虽可形成狭缝吹成连续的风屏，但其吹风路径的长径(或缝宽)比小或过小，使风屏的片状风刚性小或过小，隔离油烟弱或油从锅中炸开而冲出风屏；或单面围、三面围风屏，不能全方位消灭油烟，且三面围加对面隔板增加成本与减少美观度等。
综上，当前所有的油烟机的油气脱除均存在烦人的”尾巴”，因此，对已有技术所存在的缺陷进行改进以割除这些”尾巴”，使其在正常使用及维护能够发挥更为有效的作用至关重要。
发明内容
本发明所要解决的技术问题是针对上述现有技术中的缺陷，提供一种结构简单、生产成 本低且油烟过滤效率高的风屏静电免清洗脱排油烟机。
本发明为解决上述技术问题采用以下技术方案：
本发明提供了一种风屏静电免清洗脱排油烟机，包括锥形风屏、与所述锥形风屏顶端对应与风屏连通的排风管道，所述锥形风屏其底部设置有封闭形的风屏框架，且沿所述风屏框架上侧水平设置有主气管，所述主气管上方设有若干连通的长孔，若干所述长孔所形成的连续排列的轴线方向夹缝宽大于0.5毫米小于3毫米，各缝不定横向(或纵向)长度中所夹薄壁厚度小于等于4毫米，所述长孔其长缝比或长径比大于20，又所述风锥指向所述排风管道的罩内，且由下而上吹风。所述长孔的入气口与所述主气管的进气口连通，该长孔为狭窄的缝可加薄隔片，并以较大长缝(宽)比或长径比以形成刚性整流风。
进一步地，在所述的一种风屏静电免清洗脱排油烟机上，若干所述长孔的中心轴线均指向所述锥形风屏的锥形顶端或排风管入口处。
进一步地，在所述的一种风屏静电免清洗脱排油烟机上，所述进气口与鼓风机连通。
进一步地，在所述的一种风屏静电免清洗脱排油烟机上，所述风屏框架底部均布有若干微高脚。
进一步地，在所述的一种风屏静电免清洗脱排油烟机上，所述排风管道的壳体或夹层内设有电热线，所述电热线可通电加热所述排风管道的壳体。
进一步地，在所述的一种风屏静电免清洗脱排油烟机上，还包括设置于所述排风管道出口处的静电过滤器。
进一步地，在所述的一种风屏静电免清洗脱排油烟机上，所述静电过滤器倾斜设置于所述排风管道的出口处。
进一步优选地，在所述的一种风屏静电免清洗脱排油烟机上，所述静电过滤器为涂抹具有一定介电常数的塑料的金属滤网。
进一步较为优选地，在所述的一种风屏静电免清洗脱排油烟机上，所述金属滤网里侧的表面上设有塑料毛。
进一步较为优选地，在所述的一种风屏静电免清洗脱排油烟机上，所述金属滤网连接静电发生器，所述静电发生器以电容储电方式电路进行工作。
更进一步地，在所述的一种风屏静电免清洗脱排油烟机上，所述金属滤网的下方的排风管道上，设有储油槽。
更进一步优选地，在所述的一种风屏静电免清洗脱排油烟机上，所述储油槽底部设置有排油孔。
进一步优选地，在所述的一种风屏静电免清洗脱排油烟机上，所述排风管道出口处的静电过滤器可拆御安装于出口处的卡槽内。
进一步地，在所述的一种风屏静电免清洗脱排油烟机上，在所述排风管道入口处设若干附壁的导流片，以引风导向排风管道的出口。
本发明采用以上技术方案，与现有技术相比，具有如下技术效果：
本发明的一种风屏静电免清洗脱排油烟机，通过台面或下沉于台面的风屏框架上的主气管和长孔，对进入的鼓风机风进行整流，可将锥形风屏内已形成的加速油烟气经过含导流片的排风管道吹向静电滤网器，通过静电滤网器吸附油气、烟微粒下沉后并储存于储油槽内；以及通过均匀埋入排风管道的壳体夹层内的密布的发热线使排风管道整体发热，避免油烟不因冷凝而凝结在排风管道内腔，不积油烟，达到免清洗脱排油微粒和烟微粒的目的；该免清洗脱排油烟机构造简单，低成本，封闭与过滤油烟的效率可达到九成九或以上，并具有免清洗功能。
附图说明
图1为本发明一种风屏静电免清洗脱排油烟机中风屏框架与排风管道的结构图：
图2为本发明一种风屏静电免清洗脱排油烟机中静电过滤器的结构图；
图3为本发明一种风屏静电免清洗脱排油烟机中电容充电式静电器电路示意图；
其中，各附图标记为：10-锥形风屏，20-风屏框架，21-微高脚，22-主气管，23-长孔，24-进气口，30-排风管道，31-卡槽，32-储油槽，33-排油孔，34-导流片，40-静电过滤器，41-金属滤网，42-塑料毛。
具体实施方式
下面结合附图对本发明的技术方案做进一步的详细说明。
如图1所示，本发明实施例提供了一种风屏静电免清洗脱排油烟机，包括锥形风屏10、与锥形风屏10顶端以风屏连通的排风管道30；排风管道30入口与锥形风屏10顶端出口相连接，以使风屏气全部贴近锥形风屏10的内腔进入该排风管道30内，锥形风屏10的底部设置有封闭形的风屏框架20，该风屏框架20为四边形或椭圆形围成的框形架，其底部有微高脚21露空，用于灶具燃烧时从外侧进空气；且沿风屏框架20内侧面水平设置有互通的主气管22，主气管22上方设有若干与其连通的长孔23，长孔23的入气口与主气管22的进气口24连通，长孔23的作用在于使通过进气口24进入的流体产生明显整流，视鼓风机功率大小， 其长缝(宽)比或长径比大于20，缝宽大于0.5小于3毫米，各缝不定横向(或纵向)长度中所夹薄隔离片厚度小于等于4毫米(亦可直接取消隔离片，仅剩长狭缝)，经整流后的风会保持直线性而不易被干扰及屏内外产生优质刚性隔离，因经右侧排风管道30集中左转风的汇聚而产生负压，加上可添导流片34导流及自然升腾的烟气，便会加速全部油烟气吸或吹向静电过滤器40，并通过静电过滤器40吸附油气、烟微粒并储存于储油槽内，达到易洗脱排油微粒和烟微粒的目的。
作为本实施例的一个优选技术方案，若干长孔23的中心轴线均指向锥形风屏10的锥形顶端或排风管道30入口处，所有长孔23的中心线全部对准上方某个形成四棱锥或椭圆锥的顶点或近似顶点，且长孔23之间互相紧密排列，长孔与长孔之间隔以薄壁隔离，该薄壁的存在有利于导向形成锥形风与更形成刚性整流风，故适当密布较好，由计算知，当出风缝厚度为比值1时，因适当锥度的锥形原因风侧会互相互挤压，上面入口风厚度变厚为1.4至2.5左右，还有薄壁隔离作用，以使相邻长孔23中排出的气均可互相粘连形成无缝风屏幕。此外，该进气口24与鼓风机(图中未示出，可放置于台面以下柜中)以软管连通二对角，通过鼓风机为风屏框架提供全管等压的整流的气体流。
如图2所示，作为本实施例另一个优选实施例，一种风屏静电免清洗脱排油烟机还包括设置于排风管道30出口处的静电过滤器40，该静电过滤器40可拆卸安装于排风管道30的出口处的卡槽31内；静电过滤器40为涂抹具有一定介电常数的塑料的金属滤网41，其金属滤网41里侧的表面上设有塑料毛42，金属滤网41呈一块插板形式，可从排风管道30的出口端部侧面插入槽中并在出口端部定位，或从缝中抽出清洗；此外，还在金属滤网41下方的排风管道30上设有储油槽32。塑料毛42的作用在于当金属滤网41获得合适的静电位后，除网上会吸附油烟外，更会在适当的远处因电荷极化将具有合适介电常数的塑料毛42尖端获得最佳静电力，可增强静电引力以吸油、烟微粒；优选地，静电过滤器倾斜设置于排风管道的出口处，静电过滤器40倾斜安装的目的在于由微粒组成的油液体可以从塑料毛42顺势流至金属滤网41上再下滑到网上，再沿金属滤网41下延至底部流向储油槽32并进入排油孔33，平时可以塞子塞住该排油孔33。
在本实施例的一种风屏静电免清洗脱排油烟机上，金属滤网41连接静电发生器，静电发生器以电容储电方式电路进行工作，如图3所示，为电容充电式静电器电路示意图静电发生器的电路示意图，若接金属滤网41的二对角则效果会更佳，使电荷分布均匀而不易出现单侧效果差些情况。静电发生器，通常都以不断电方式进行保持负极或正极有高电压，在民用方面有一定危险，因单极接金属滤网而另一单极接地有困难，无地线或地线电阻值超标，并 有通过火花放电，引起燃气爆炸等。本实施例采用静电发生器以电容储电方式电路进行工作，即电容储电法代替之，装入绝缘盒内且接线永远连接，不存在任何分离而高压放电，因小电流及无接地也不存在对地电压故不存在触电危险，即安全又节省费用。本实施例的风屏静电免清洗脱排油烟机只需开机时充电几分钟自动关闭电源即可将一餐饭菜做完而保持静电吸油烟无碍，一则油不导电，它滴落下来会自动将因静电力产生的滴液两端正负电荷自动中和，原则上并不耗电，仅空气中会散漏小部分电荷微放电反应的一丝消耗。
此外，本发明实现免清洗功能所采用的技术方案是：将排风管道30的塑料制件按电热毯原理进行制作，将电热线均匀密布埋入该排风管道30的壳体板夹层内，作成固体电路通电即能使之整体发热。研究发现油烟常因冷凝而凝结在排风管道30的壳体内腔上，若壳体内腔发热到某种合适程度则将油烟不会产生冷凝，也即不结到内腔壁上了，故其也不用清洗了，合适的壳体温度会使排风管道30的壳体内腔几乎百分百不积油烟，以上使用的电热线均为小功率，费电少。
本发明的一种风屏静电免清洗脱排油烟机的使用方法为：
当放置在风屏框架20内下方的灶具点火炒菜时，因风屏10经整流后的急流体具一定或较强刚性，它隔离了内外空气的交流，于是空气就从微高脚21两侧的腾空处进入向上助燃火，该火顺势火焰更长还可覆盖锅底更大面积，风屏框架20因已工作，鼓风机管接进气口24吹风，通过主气管22传遍整个风屏框架20内腔，该气流同时又分别向上各自进入每个长孔23，经其整流作用，及各个长孔23紧挨，便形成密集的风屏效应，它与外界产生一种动态的隔离。
当油烟产生时，甚至爆出的油滴将都易被该风屏阻挡而随具强有力的整流风上升至排风管道30腔内，经合适的导流片34导向后风从左侧出风口排出，加热排风管道30壳体夹层内的电热线而使腔内升温，电热线升温至在排风管道30壳体不产生冷凝油，该温度较高于烟气温度，且温度越高越不粘油烟，故使得排风管道30的腔内始终保持干净，同时又因整流风的规则与高速度，亦使油气仅易限于整流风屏的内侧而不到外侧的排风管道30内腔壁上，故油烟气也不易附于内腔壁上，这样双管齐下可免擦洗内腔。
当油烟气冲击排风管道30出口处的静电过滤器40时，因接入静电发生器而使金属滤网41带负或正电，它通过具一定介电常数的塑料涂抹产生静电力将吸附油烟气，以及设置在金属滤网41上合适长度的塑料毛42，由塑料毛42产生极性最强的静电力而吸附油烟气，当其上吸附的油烟气过多时，成滴的油烟混和物将因重力而顺倾斜的塑料毛42下延及顺着金属滤网41的的斜面下延流入到储油槽32内，最后通过排油孔33下漏排出。
综上，本发明的一种风屏静电免清洗脱排油烟机，采用以上多管齐下的方法，使得现有 油烟机的性能得到全面提升，油烟排出率可达到九成九以上，且可免清洗，省力省事省钱，所采用的鼓风机噪音与油烟机不产生共鸣，鼓风机被设置在幽闭的下方灶柜内(柜内装吸音材料，柜底开进气洞以补空气)，从而减弱降低了噪音污染，该风屏静电免清洗脱排油烟机结构极简，外形简洁美观，生产成本或接近传统机，具有相当好的推广应用价值。
以上对本发明的具体实施例进行了详细描述，但其只作为范例，本发明并不限制于以上描述的具体实施例。对于本领域技术人员而言，任何对该发明进行的等同修改和替代也都在本发明的范畴之中。因此，在不脱离本发明的精神和范围下所作的均等变换和修改，都应涵盖在本发明的范围内。

Claims (10)

  1. 一种风屏静电免清洗脱排油烟机，包括锥形风屏(10)、与所述锥形风屏(10)顶端对应与风屏连通的排风管道(30)，所述锥形风屏(10)其底部设置有封闭形的风屏框架(20)，且沿所述风屏框架(20)上侧水平设置有主气管(22)，所述主气管(22)上方设有若干连通的长孔(23)，其特征在于：若干所述长孔(23)所形成的连续排列的轴线方向夹缝宽大于0.5毫米小于3毫米，各缝不定横向(或纵向)长度中所夹薄壁厚度小于等于4毫米，所述长孔(23)其长孔其长缝比或长径比大于20，又所述风锥指向所述排风管道(30)的罩内，且由下而上吹风。
  2. 根据权利要求1所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述排风管道(30)的壳体或夹层内设有电热线，所述电热线可通电加热所述排风管道(30)的壳体。
  3. 根据权利要求1所述的一种风屏静电免清洗脱排油烟机，其特征在于，还包括设置于所述排风管道(30)出口处的静电过滤器(40)。
  4. 根据权利要求3所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述静电过滤器(40)为涂抹具有一定介电常数的塑料的金属滤网(41)。
  5. 根据权利要求4所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述金属滤网(41)里侧的表面上设有塑料毛(42)。
  6. 根据权利要求4所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述金属滤网(41)连接静电发生器，所述静电发生器以电容储电方式电路进行工作。
  7. 根据权利要求4或5所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述金属滤网(41)的下方的排风管道(30)上，设有储油槽(32)。
  8. 根据权利要求7所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述储油槽(32)底部设置有排油孔(33)。
  9. 根据权利要求1所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述排风管道(30)的入口处设置有附壁的导流片(34)。
  10. 根据权利要求3所述的一种风屏静电免清洗脱排油烟机，其特征在于，所述的静电过滤器(40)可拆御安装于出口处的卡槽(31)内。
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