CN103185359B - Smoke exhaust ventilator - Google Patents

Smoke exhaust ventilator Download PDF

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Publication number
CN103185359B
CN103185359B CN201210337470.8A CN201210337470A CN103185359B CN 103185359 B CN103185359 B CN 103185359B CN 201210337470 A CN201210337470 A CN 201210337470A CN 103185359 B CN103185359 B CN 103185359B
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Prior art keywords
filter
fan
rotation
motor
smoke exhaust
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CN103185359A (en
Inventor
藤原崇义
佐佐木友
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Fuji Industrial Co Ltd
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Fuji Industrial Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes

Abstract

The smoke exhaust ventilator that little, the oily capture rate of a kind of pressure loss is high is provided.Smoke exhaust ventilator (1) possesses: the fan (60) producing air stream; The stream of air stream is in the filter (10) of the side, upstream of fan (60), and described filter (10) has the hole ventilated; Make the motor (20) that filter (10) rotates; Surround the oil content capturing means (30) of the surrounding of filter; And the control part (90) of the rotation of control fan (60) and motor (20), control part (90) can make fan (60) and motor (20) side by side rotate.

Description

Smoke exhaust ventilator
Technical field
The present invention relates to the smoke exhaust ventilator of catching oil content a kind of oil smoke from being produced by the cooking, particularly relating to smoke exhaust ventilator.
Background technology
Be arranged on the steam, oil smoke etc. that the cooking carried out below smoke exhaust ventilator produces by the smoke exhaust ventilator in kitchen etc. to suck together with the air stream produced by fan, and by described oil smoke etc. together with the air sucked to discharges such as outdoors.But, by unfavorable to environment directly to discharges such as outdoors for the oil content be included in oil smoke, and oil content can be adhered on the equipment being usually in fan, pipeline etc. on the smoke exhaust ventilator downstream in air flow circuit, in the maintenances such as cleaning, need a large amount of labour/expenses, and the deterioration of equipment can be promoted.
Therefore, smoke exhaust ventilator needs to possess the filter with high capture rate, is caught by the majority of the oil content be included in oil smoke and reclaims; But then, attachment oil content on the filter by plugged filter, can impel aeration resistance increase, capture rate reduction, becomes the reason that ventilation is bad, user even can be forced to clean continually or scavenge filter, need a large amount of labours to move and the time.Therefore, in prior art, be make an effort in the cleaning improving filter mostly.
Such as, in technology disclosed in patent document 1, disclose a kind of smoke exhaust ventilator with cleaning filter function, possess oil smoke when catching the cooking filter and while with the surface contact of filter while the brush (dirt erase unit) of movement, accordingly, attachment dirt on the filter can be removed and do not use a large amount of slurries.
Although this smoke exhaust ventilator can alleviate the burden of user oneself filter rinsed, need brush, the motor of driven brush and the jar, spray nozzle etc. of slurry, the structure of smoke exhaust ventilator self becomes extensive and complicated, and cost also increases.In addition, the technology of the oily capture rate improving filter do not instructed by this smoke exhaust ventilator at all yet.
As not only preventing the blocking of filter, alleviate the burden of cleaning, but also by the measure using filter to improve the rate of recovery of oil, technology disclosed in patent document 2 can be had.Disclose a kind of smoke exhaust ventilator in the publication, wherein, arrange in the front side of the rotating vane of exhaust for remove oil in waste gas, there is blade and be formed as roughly discoidal rotatable filter, and from filter to the rotating vane of exhaust be provided with for by while the rotating vane of the waste gas guiding exhaust of filter flow, the oil attachment passage portion on an internal surface made waste gas.
This smoke exhaust ventilator does not need such extensive of patent document 1 and the structure of complexity yet, but will smoke exhaust ventilator run duration (smoke exhaust ventilator stop in) removing be identical in smoke exhaust ventilator run duration attachment oil content this point on the filter.In addition, although how many burdens of user self filter rinsed can alleviate, but owing to splash in the downstream part of filter a large amount of oil content in the passage portion that arranges, namely from filter to the rotating vane of exhaust, compared with the filter obviously spending many time when thus cleaning smoke exhaust ventilator with user oneself, clean downstream part burden not talkative obtaining alleviate.
[prior art file]
[patent document 1] Japanese Unexamined Patent Publication 2006-292248 publication
[patent document 2] Japanese Unexamined Patent Publication 2006-38240 publication
Summary of the invention
Therefore, the present invention proposes in view of the above problems, the object of the present invention is to provide and a kind ofly reduce oil content attachment on the filter/deadlocked and alleviate the smoke exhaust ventilator of the burden of cleaning/filter rinsed, described smoke exhaust ventilator have significantly exceed existing oily capture rate and the pressure loss little, be difficult to plugged sereen.
In addition, the invention provides a kind of make filter action but the sound alleviating the power source of action on the smoke exhaust ventilator of the impact of user.
The present inventor has carried out wholwe-hearted research to solve the problem, found that, run while make filter movement by making the fan of smoke exhaust ventilator, high oily capture rate can be obtained with the state that the pressure loss is little, and find, by to making the power source of filter movement control, the sound that sends from described power source etc. can be alleviated on the impact of user, thus completing the present invention.
In order to solve the problem, provide a kind of smoke exhaust ventilator, it is characterized in that possessing: the fan producing air stream; The stream of described air stream is in the filter of the side, upstream of described fan, and described filter has the hole making described air circulation; Make the motor that described filter rotates; Surround the oil content capturing means of the surrounding of described filter; And control the control part of rotation of described fan and described motor, wherein, described control part can make side by side to rotate with described motor at least one moment when making described fan turns, and control part makes the rotation speed change of fan, and makes the rotation speed change of motor according to the rotating speed of fan.。
Accordingly, by making filter and fan side by side rotate, the noise that the motor that can be used in filter rotation sends, the wind noise etc. produced by the rotation of filter become the degree that user can not note.In addition, side by side carried out at least one moment by the running of rotation, i.e. smoke exhaust ventilator and the rotation of filter making fan, oil content adhesion amount on the filter can be reduced, deadlocked on filter surfaces of oil content can be prevented.
In addition, its feature can be, the moment that described control part starts with the moment making the rotation of described fan and start and the rotation of described motor for mutually in the same time and/or moment of terminating of moment of terminating of the rotation of described fan and the rotation of described motor control for phase mode in the same time.
Accordingly, by side by side carrying out, as the rotation of motor of power source and the beginning, end etc. of the rotation of fan that drive filter, a kind of user can being provided can not to notice the smoke exhaust ventilator of the noise that motor produces.
In addition, its feature can be, the moment that described control part starts with the moment making the rotation of described fan and start and the rotation of described motor controls for mode in the same time mutually, and controls in the mode of the rotation terminating described motor after the rotation of described fan terminates after the stipulated time.
Accordingly, a period of time is rotated by still making filter after the running of smoke exhaust ventilator terminates, attachment oil content on the filter can be made to fly out, filter can be made to maintain clean state, its result, can provide a kind of smoke exhaust ventilator reducing oil content attachment on the filter/deadlocked, alleviate the burden of cleaning/filter rinsed.In addition, if oil content attachment on the filter after smoke exhaust ventilator running terminates, then oil content can deadlocked and blocking filter or imbalance occurs, and when starting running next time, can produce meaningless noise, and just can prevent this noise like this.
In addition, its feature can be, described control part with the moment that the rotation of the moment making the rotation of described fan and start and described motor starts be not in the same time and moment of terminating of the rotation of moment of terminating of the rotation of described fan and described motor be that mode does not in the same time control.
Accordingly, by making fan and filter rotate independently, can control flexibly.
In addition, its feature can be, described control part makes the rotation speed change of described fan, and makes the rotation speed change of described motor according to the rotating speed of described fan.
Accordingly, can under a lot of oil condition of attachment, apply stronger centrifugal force and make oil content fly away from the blocking preventing filter rapidly from filter, alleviate oil content adhesion amount, and the phenomenon that makes when the rotating speed of smoke exhaust ventilator is slow filter carry out rotating to be more than or equal to required high speed can be prevented.
In addition, its feature can be, described control part makes the rotating speed of described fan and described motor hierarchically change.
Accordingly, the rotating speed that can control as user easily differentiates in weak mode in strong.
In addition, in order to solve the problem, a kind of smoke exhaust ventilator be provided, it is characterized in that, possessing: the fan producing air stream; The stream of described air stream is positioned at the filter of the side, upstream of described fan, and described filter has the hole making described air circulation; Make the motor that described filter rotates; Surround the oil content capturing means of the surrounding of described filter; And the control part that the rotating speed of described fan and described motor can be made hierarchically to change, wherein, described control part makes described motor not rotate in the minimum rank of the rotating speed of described fan, in rank beyond minimum rank, at least one moment when making fan turns makes described motor rotate.
Accordingly, in the obvious situation of sound of the rotation with filter, by making filter not rotate, a kind of quietly smoke exhaust ventilator can be provided.
In addition, its feature can be, when terminating to rotate after the rank that described fan is only minimum with the rotating speed of described fan has carried out rotation, described control part makes described motor rotate at the end of the rotation of described fan.
Accordingly, a kind of smoke exhaust ventilator can be provided, after the running of smoke exhaust ventilator terminates, such as when user leaves near the kitchen range top, filter can be made immediately to rotate and the oil content of attachment is flown away from, make oil content fly away from the blocking preventing filter and the adhesion amount reducing oil content from filter fast, and the user leaving smoke exhaust ventilator can not notice noise.
In addition, its feature can be, the filter possessing the rotation controlling described motor rotates gauge tap.
Accordingly, user oneself can the rotation of controlling filter neatly.
As mentioned above, according to the present invention, can provide a kind of reduce oil content attachment/deadlockedization on the filter and alleviate the smoke exhaust ventilator of the burden of cleaning/filter rinsed, described smoke exhaust ventilator possesses and outclasses existing oily capture rate, the pressure loss is little and is difficult to plugged sereen.
In addition, according to the present invention, a kind of sound reducing the power source of the action of filter can be provided the smoke exhaust ventilator of the impact of user.
Accompanying drawing explanation
Fig. 1 is the profile of the first embodiment of smoke exhaust ventilator of the present invention.
Fig. 2 is the stereogram (having pulled down the state of cowling panel) observed from below of the first embodiment from smoke exhaust ventilator of the present invention.
Fig. 3 is the front view (A), side view (B), top view (C), upward view (D), the profile (E) that represent filter in the first embodiment of smoke exhaust ventilator of the present invention and peripheral part thereof.
Fig. 4 is the amplification profile (position of section and Fig. 3 (E) are same positions) representing filter in the first embodiment of smoke exhaust ventilator of the present invention and peripheral part thereof.
Fig. 5 is the Action Specification figure in the first embodiment of smoke exhaust ventilator of the present invention.
Fig. 6 is the Action Specification enlarged drawing in the first embodiment of smoke exhaust ventilator of the present invention.
Fig. 7 is the key diagram of the change case of the control method of the first embodiment representing smoke exhaust ventilator of the present invention.
Fig. 8 is the test structure figure used in the test of the capture rate of the first embodiment and prior art middle filtrator in order to obtain smoke exhaust ventilator of the present invention and the relation of the attachment of oil content in components downstream.
(description of reference numerals)
1: smoke exhaust ventilator; 2: cover opening portion; 3: filter unit; 10: filter; 11: hole
20: motor; 21: the rotating shaft of motor; 30: oil content capturing means; 31: oil conservator
40: motor installation; 41: motor installation hole; 50: installing plate; 51: installing plate opening portion
52: extension; 60: fan; 61: fan drum; 62: air entry; 70: cowling panel
80: cover portion; 81: wainscot; 82: Fan Box; 90: control part
91: filter rotates gauge tap; D: discharge duct; A: air stream
OP: oil content; OL: oil
Detailed description of the invention
Referring to accompanying drawing, each embodiment of the present invention is described.
< first embodiment >
Fig. 1 represents the smoke exhaust ventilator 1 in the first embodiment of the present invention.Smoke exhaust ventilator 1 has the slim cover portion 80 for catching the steam, oil smoke etc. that are produced by the cooking carried out in below, and described cover portion 80 has the wainscot 81 of concavity up at inner face.Cover portion 80 is connected with Fan Box 82 being positioned near the cover opening portion 2 of substantial middle, and described Fan Box 82 is connected with discharge duct D.Fan Box 82 has fan drum 61 in inside, and fan drum 61 has the fan 60 producing air stream in inside, described fan 60 is sirocco fans.The air entry 62 of fan 60 is configured in the cover opening portion 2 in cover portion 80.Therefore, if fan 60 operates, cover opening portion 2 becomes negative pressure, and the air below wainscot 81 is inhaled into via cover opening portion 2, and externally discharges via discharge duct D.That is, the stream covering the air stream that opening portion 2 produces at fan 60 is positioned at the side, upstream of fan 60.
Cover opening portion 2 has: the installing plate 50 installed in the mode not producing the gap that can become air flow circuit between wainscot 81; There is the discoid filter 10 in the hole ventilated; Rotating shaft is connected with the center of the disk of filter 10 and makes the motor 20 that filter 10 rotates; For motor 20 being arranged on the motor installation 40 on installing plate 50; And to be arranged on installing plate 50 and to surround the oil content capturing means 30 of the outer peripheral edge of filter 10.Therefore, smoke exhaust ventilator 1 pivotally possesses filter 10, the stream of the air stream that described filter 10 produces at fan 60 is positioned at the side, upstream of the fan 60 of described air stream, and there is the hole that described air stream is passed through from bottom to top when figure.
In addition, cover portion 80 possesses control part 90, the rotation of motor 20 that described control part 90 controls filter 10 is rotated and the rotation of fan 60.In the present embodiment, control part 90 is arranged in cover portion 80, but is not limited to this, also can be arranged on any position of smoke exhaust ventilator 1, can also be arranged on the outside of smoke exhaust ventilator 1.Control part 90 controls in the mode making fan 60 and motor 20 and side by side rotate.That is, control part 90 controls by this way: at least one moment when smoke exhaust ventilator 1 makes the fan 60 of generation air stream rotate to catch the oil smoke etc. that produced by the cooking makes motor 20 rotate.In addition, what is called makes fan 60 or motor 20 (filter 10) rotate specifically to refer to be energized to fan 60 or motor 20, and what is called does not make it rotate and refers to power-off.
Air rubber capsule below wainscot 81 is containing the steam, oil smoke etc. that produce by cooking, if fan 60 operates, then described air by cover opening portion 2, the hole that the stream of air stream that namely fan 60 produces is positioned at the filter 10 of the side, upstream of fan 60 attracts and by described hole.Filter 10 is configured to by motor 20 and rotates, if smoke exhaust ventilator 1 operates, then while fan 60 produces air stream, motor 20 makes filter 10 rotate.Smoke exhaust ventilator 1 rotates by making filter 10, will comprise aerial oil content and be captured on oil content capturing means 30.The method that later explanation is caught.
With by using existing slotted filter device or HEPA filter etc. the refinement such as gap or mesh or overlying multiple layers to be improved compared with the measure of oily capture rate, this smoke exhaust ventilator 1 can have high oily capture rate with the state that the pressure loss is little.Namely, if improve oily capture rate by the mesh or overlying multiple layers using the refinement gaps such as existing slotted filter device or HEPA filter, then the ventilating part of filter can form complicated stream, thus aeration resistance has the trend increased, and when described smoke exhaust ventilator 1, because be improve oily capture rate by the rotation of filter, do not need the stream forming this complexity.Therefore, compared with existing filter, high oily capture rate can be obtained under the state maintaining lower aeration resistance.In addition, decrease the phenomenon that oil content attachment causes blocking on the filter, accordingly, the labour of the cleaning of filter self can be reduced, prevent the pressure loss from increasing along with use; In addition, because the downstream part of the filter in air flow circuit does not almost have oil content adhere to, a kind of smoke exhaust ventilator significantly alleviated the burden that the downstream part of filter is cleaned/cleaned can be provided.
The kind of the fan of fan 60 is not particularly limited, and can be other fans such as the aerofoil fan of generation air stream.Preferably, the much higher blade fan of the static pressure used in the present embodiment.In addition, to possess in the below in cover portion 80 and cover portion 80 is detachable and between cover portion 80, have gap and improve the cowling panel 70 of inhalation power.Although the smoke exhaust ventilator 1 in the present embodiment possesses cowling panel 70, the existence of cowling panel 70 is not particularly limited, not essential.When there is not cowling panel or when pulling down cowling panel, as shown in Figure 2, user can directly see: as the wainscot 81 of the concavity up of the inner face in cover portion 80, installing plate 50, the discoid filter 10 installed in the mode not producing gap with wainscot 81 and be arranged on the oil content capturing means 30 arranged on installing plate 50 and in the mode of the outer peripheral edge surrounding filter 10.
Fig. 2 represents that the filter of the rotation controlling motor 20 rotates gauge tap 91.As illustrated, control part 90 carries out various control to the motor 20 making filter 10 rotate later, but in addition, operates filter rotate gauge tap 91 by user, and user oneself can the rotation of controlling filter neatly.Filter rotates the rotation that gauge tap 91 can carry out motor 20 according to the operation of operator to start, rotates and terminate and the action such as change velocity of rotation.In addition, as the attended operation of filter 10, the operation automatically stopped after only making motor 20 rotate the stipulated time can be carried out.
In addition, in the present embodiment, although filter 10 is formed by being formed as discoid thin plate, be not limited thereto, such as filter also can be tubular.In the case, the filter of tubular makes cylinder rotate by the rotating shaft connecting motor on the central shaft of cylinder, and on the side of cylinder, have the hole ventilated.Air stream is configured to pass through inside the lateral of the side of cylinder.In addition, oil content capturing means is configured to the side surrounding cylinder.Cylinder can also can be placed vertically by traverse.When cylinder traverse, oil content capturing means possesses the opening portion opened in the below sucking air and the opening portion opened to make air flow to fan side.When cylinder is placed vertically, because the side from cylinder sucks air stream, not at the bottom surface opening of cylinder, in addition, oil content capturing means is configured to the whole side surrounding filter to filter.Because easy structure can be had and can provide slim smoke exhaust ventilator, so be preferably formed the such filter formed by discoid thin plate of the present embodiment.
In addition, in the present embodiment, part on the surface of the both sides of filter 10 except hole does not have thrust or concavo-convex, but smooth and smooth even surface, but being not limited to this, also can be the thrust together with gap (hole) as common slotted filter device with lug etc.If filter possesses level and smooth surface as the present embodiment, then the aeration resistance of air stream on the filter reduces further, and then the rotary resistance of filter also reduces, therefore, as long as to have little moment of torsion just enough for the motor making filter rotate.In addition, owing to there is no the juts such as lug on the filter, the smoke exhaust ventilator that a kind of noise cutting air is little therefore can be provided.In addition, accordingly, be easy to filter is rotated at high speed.In addition, because nearly all oil content is all caught by the surface of filter, the phenomenon that the side in the hole of filter is caught oil content does not almost have, therefore the phenomenon that the hole of filter blocks because of oil reduces further, in addition because there is no the jut of lug etc., so the cleaning/cleaning of filter self becomes easy.
Fig. 3 and Fig. 4 represents filter 10 and the periphery (hereinafter referred to as filter unit) thereof of smoke exhaust ventilator 1.Filter unit 3 possesses: be arranged on the installing plate 50 on cover opening portion 2; There is the discoid filter 10 in the hole ventilated; Rotating shaft is connected with the center of the disk of filter 10 and makes the motor 20 that filter 10 rotates; For motor 20 being installed to the motor installation 40 on installing plate 50; And to be arranged on installing plate 50 and to be arranged to the oil content capturing means 30 of the surrounding surrounding filter 10.
Installing plate 50 is the roughly foursquare flat boards possessing circular installing plate opening portion 51 at central portion.In the present embodiment, dull and stereotyped surrounding has curvature and bends upward, but is not limited to this, as long as have the structure be arranged on the cover opening portion 2 of wainscot 81.The installation of installing plate 50 and cover opening portion 2 does not form gap etc., and air stream does not pass through mounting portion.Therefore, installing plate opening portion 51 becomes unique part of the air circulation that fan 60 is produced, and installing plate opening portion 51 becomes the stream of the air stream that fan 60 produces.
Motor installation 40 on the side, downstream of the air stream of installing plate 50 to arrange across the mode of installing plate opening portion 51.Motor installation 40 has the hole 41 for making the rotating shaft 21 of motor 20 pass in substantially central portion, in addition, has installation attaching part to easily be installed on installing plate 50.Motor installation 40 becomes the center of mounting opening 51 when overlooking mode with hole 41 is arranged on installing plate 50.
When motor 20 makes rotating shaft see in the drawings, (the upstream side, side, downstream from air stream) runs through the hole 41 of motor installation 40 from the top to the bottom, and described motor 20 is fixed on motor installation 40.The rotating shaft 21 of motor 20 becomes the center of circular installing plate opening portion 51 when overlooking.
Filter 10 is detachably installed on the fore-end of the rotating shaft 21 of motor 20, makes the surface of filter 10 vertical with rotating shaft 21.The profile of filter 10 is circular, filter 10 is arranged on the rotating shaft 21 of the motor 20 at the center being positioned at circular installing plate opening portion 51 in the center of filter 10, so the profile of the profile of filter 10 and installing plate opening portion 51 is concentrically ringed circles.In the present embodiment, because there is extension 52 on installing plate opening portion 51, so the diameter of filter 10 is larger than the diameter of installing plate opening portion 51.Extension 52, on the end of the side, upstream of oil content capturing means 30, namely extends to the rotating shaft side of motor 20 to the inside from the inwall of oil content capturing means 30.Because described extension 52 can increase the ratio of the oil content that can capture passing hole, the smoke exhaust ventilator that oily capture rate is high can be provided, so be preferred.
The position that filter 10 is seen in front is the below of installing plate 50 lower surface and the side, upstream of air stream.Therefore, oil content capturing means 30 is arranged on installing plate 50 in the mode of the outer peripheral edge surrounding filter 10.The outer peripheral edge of filter 10 needs to be greater than 0 with the distance of the inwall of oil content capturing means 30 to make both not contact, but in order to oil-proof point then preferably little as much as possible.In the present embodiment, be about 2.5mm.Oil content capturing means 30 is provided with oil conservator 31 in lower end.With side, the upstream surface collision of filter 10 and the oil content that bullet flies encounters the inwall of oil content capturing means 30, and oil conservator 31 is the places storing this oil content.
In addition, the height of smoke exhaust ventilator 1 comprises the height in cover portion 80 and the height of Fan Box 82, but the height of Fan Box 82 is roughly specified by the height of fan 60, the height in cover portion 80 by filter unit 3 height with specify for the degree of depth (highly) sum of catching the recess of the wainscot 81 of the air comprising oil content etc., the height of height namely from the upper end of motor 20 to the lower end of oil content capturing means 30 of described filter unit 3.In order to catch the degree of depth (highly) of the air needs recess to a certain degree comprising oil content etc., the height therefore reducing filter unit 3 is for the whole height reducing smoke exhaust ventilator 1 and to provide slim smoke exhaust ventilator be important.In the present embodiment, filter unit 3 because filter 10 is formed by being formed as discoid thin plate, so thin and be preferred.
Fig. 5 and Fig. 6 is the figure of the effect that the oil content of catching with air stream is described in smoke exhaust ventilator 1.Fig. 5 represents the effect of the air stream of smoke exhaust ventilator 1 entirety.Hot-air A rises to smoke exhaust ventilator 1 together with the steam, oil smoke etc. that are produced by the cooking carried out in the below of smoke exhaust ventilator 1.If smoke exhaust ventilator 1 starts running and fan 60 starts to rotate, then fan 60, when figure, direction from bottom to top produces air stream.So the air risen near cowling panel 70 is inhaled between cowling panel 70 and wainscot 81, is then inhaled into the air entry 62 of the fan 60 in fan drum 61 through the hole 11 of filter 10.Then, discharge from Fan Box 82 to discharge duct D.
The revolution of the time per unit of filter 10 also depends on the open state in the hole of filter, but is at least more than or equal to 230rpm (RotationPerMinute: revolutions per minute).When filter 10 higher speed rotate time, the air with described surface contact is pulled on the surface (not having the part in hole 11) of filter 10 because of frictional force, and this motion also can under the effect of the viscosity of air near transfer of air, accordingly, the motion of air is produced at the near surface of filter 10, and because filter 10 is rotated, so the motion of air becomes the swirl shape centered by rotating shaft.
This gyrate air movement produces on both the lower surface of the two sides of filter 10 and filter 10 and upper surface, in other words, produces at filter 10 on the surface of the side, upstream of air stream A and both surfaces of side, downstream.In the present embodiment, the air stream A that fan 60 occurs flows through the hole 11 of filter 10 from bottom to top when figure, so in the side, downstream of filter 10, the motion of gyrate air occurs to open and the helical airflow of outer peripheral edge towards filter 10 from the towing of filter 10, and utilizes fan 60 and attract to open from air entry 62.On the other hand, in the side, upstream of fan 10, gyrate air movement forms the surface that presses to filter 10 and along with the high air layer of the density of the swirl shape stream of the outer peripheral edge towards filter 10.
Fig. 6 represents the effect of the air stream on filter unit 3.Flow together with air stream A at middle oil content OP1 produced such as the cookings and arrive the near surface of the side, upstream of filter 10.The oil content OP2 arriving the near surface of side, upstream due to a part (oil content that particle diameter is little) be the swirl shape stream towards outer peripheral edge of the high air layer of density, and another part (oil content that particle diameter is large) and the surface (not having the part in hole 11) of the side, upstream of filter 10 are collided, splash in the direction, outer peripheral edge thus to filter 10.Its result, the oil content capturing means 30 being equipped to the outer peripheral edge surrounding discoid filter 10 is captured as oil content OP3, and reclaims as oily OL in oil conservator 31.
Become very tiny atomic oil content through the hole of filter 10 together with air stream A, but a part wherein can be collided with the inwall of the side, filter 10 downstream of extension 52 or oil content capturing means 30 and reclaim.A part for final unrenewable oil content be attached to be positioned at further downstream side fan 60, discharge duct D etc. on, sized by forming for by the major part of the atomic oil content of the degree in the hole of filter 10 then direct along with air-flow A via discharge duct D discharged to outdoor.Therefore, the trip part of the filter 10 of smoke exhaust ventilator 1 in air flow circuit of the present embodiment of the present invention does not almost have oil content to adhere to, the burden of the fan 60 and discharge duct D etc. of cleaning/filter rinsed 10 downstream part can be alleviated significantly.
When the surface (not having the part in hole 11) of the side, upstream of oil content and filter is collided, the major part of oil content flies to direction, the outer peripheral edge bullet of filter, and part attachment on said surface.If the velocity of rotation of filter is accelerated, then the oil content being temporarily attached to filter surfaces flies by the effect of centrifugal force and to direction, outer peripheral edge.Its result, smoke exhaust ventilator of the present invention adheres on the filter and the oil content remained reduces, and can reduce over the labour of the cleaning of filter self accordingly.
Control part 90 controls in the mode making fan 60 and motor 20 and side by side rotate.That is, the mode that at least one moment when control part 90 is to make the fan 60 of generation air stream rotate at the oil smoke etc. in order to make smoke exhaust ventilator 1 catch to be produced by the cooking makes motor 20 rotate controls.In other words, control part 90, when fan 60 rotates and produces air stream, utilizes motor 20 that filter 10 is rotated.In addition, the mode that control part 90 also can produce air stream to make fan 60 rotate when utilizing motor 20 to make filter 10 rotate controls.
Accordingly, by making filter 10 and fan 60 side by side rotate, the noise that the motor 20 that can be used in filter 10 rotation produces, the wind noise etc. caused by the rotation of filter become the degree that user can not note.Namely, when the filter when fan stops rotates, because the noise do not produced by fan, so noise, the wind noise that caused by the rotation of filter etc. that motor produces are obviously, but rotate together with fan by making filter, the noise utilizing fan to produce swallows up the noise produced by motor, the wind noise etc. produced because of the rotation of filter, therefore can become the degree that user can not be noted.In addition, by side by side carrying out the rotation of the rotation of fan 60 and the running of smoke exhaust ventilator 1 and filter 10 at least one moment, the adhesion amount of the oil content on filter 10 can be reduced over, deadlocked on filter surfaces of oil content can be prevented.
Fig. 7 is the key diagram of the change case represented for the fan 60 of the present embodiment and the control method of motor 20.Represent the time that fan 60 and motor 20 are rotated with ON (solid line), represent with OFF (dotted line) time not making it rotate.In the change case 0 of the rotation of filter, control part 90 as described above, controls in the mode making fan 60 and motor 20 side by side rotate.In this change case, any one motor 20 (filter 10) in fan 60 rotates rotates.Can be any one rotation in fan 60 rotates, its rotation time be not particularly limited.
In addition, existing smoke exhaust ventilator represents as existing example by Fig. 7.Existing example is because be will adhere to oil content on the filter during removing during not rotating and be fan turns between smoke exhaust ventilator on-stream period by (in smoke exhaust ventilator stopping) i.e. fan between smoke exhaust ventilator not on-stream period, so at fan from after ON becomes OFF, the function of removing oil content becomes ON.Thus, the present invention carry out in the mode making fan 60 and motor 20 rotate simultaneously controlling in this point completely different with the consideration method of existing example.
In the change case 1 of the rotation of filter, control part 90 to make in the rotation of fan 60 twice ON rotate during OFF, i.e. rotation dichotomous.In this change case, during divide into the rotation of twice, but be not limited to this, also can by ON and OFF repeated several times in the rotation of fan 60.Accordingly, the noise that can be produced by motor while reducing oil content adhesion amount on the filter, the wind noise etc. produced by the rotation of filter are suppressed to Min..
In the change case 2 of the rotation of filter, whenever all the make motor 20 (filter 10) of control part 90 in the rotation of fan 60 rotates.That is, moment of starting with the moment making the rotation of fan 60 and start and the rotation of motor 20 of control part 90 for mutually in the same time and moment of terminating of moment of terminating of the rotation of fan 60 and the rotation of motor 20 control for phase mode in the same time.In addition, control part moment that also can start with the moment making the rotation of fan 60 start and the rotation of motor 20 for mutually in the same time or moment of terminating of moment of terminating of the rotation of motor 60 and the rotation of motor 20 control for phase mode in the same time.Accordingly, by the beginning, end etc. of the rotation of the rotation and fan 60 of side by side carrying out the motor 20 of the power source as filter 10 action, the smoke exhaust ventilator that a kind of user can not note the generation of the noise of motor 20 can be provided.
Certainly, also can as change case 5, the moment that control part 90 starts with the moment making the rotation of fan 60 and start and the rotation of motor 20 for mutually in the same time and moment of terminating of moment of terminating of the rotation of fan 60 and the rotation of motor 20 control for phase mode in the same time, and in the rotation of fan 60, the rotation of motor 20 to be interrupted.
In the change case 3 of the rotation of filter, the moment that control part 90 starts with the moment making the rotation of fan 60 and start and the rotation of motor 20 for mutually in the same time and the mode terminating the rotation of motor 20 after the rotation of fan 60 terminates after the stipulated time control.That is, identical with change case 2 in the rotation of fan 60, but after the rotation of fan 60 terminates, motor 20 (filter 10) is still rotated further a period of time.Accordingly, can after the rotation of fan 60 terminates, the oil content be attached on filter 10 be made to fly out, filter 10 can be maintained clean state, its result, can provide a kind of smoke exhaust ventilator reducing the attachment of oil content on filter 10/deadlocked, alleviate the burden of cleaning/filter rinsed 10.In addition, if oil content is attached on filter 10 after smoke exhaust ventilator running terminates, then deadlocked the and blocking filter 10 of oil content or produce uneven, can produce meaningless noise, but just can prevent this noise like this when next time starts running.In addition, although control part 90 makes motor rotate the stipulated time that how long can be defined as being applicable to after the rotation of fan 60 terminates, but such as also can be defined as the long time when the strong length duration of runs of fan, and be defined as the short time when the weak duration of runs is long.
Certainly, also can as shown in change case 6, the moment that control part 90 starts with the moment making the rotation of fan 60 and start and the rotation of motor 20 controls for mode in the same time mutually, and control in the mode of the rotation terminating motor 20 after the rotation of fan 60 terminates after the stipulated time, and in the rotation of fan 60, the rotation of motor 20 is interrupted.
In the change case 4 of the rotation of filter, control part 90 controls by this way: before fan 60 rotates, the rotation of motor 20 started and again start after brief interruption to rotate in the rotation of fan 60, after the rotation of fan 60 terminates, after the stipulated time, then terminating the rotation of motor 20.Accordingly, by making filter 10 high-speed rotation before the rotation of fan 60 is about to begin, remaining oil content on the filter in using can be blown flew in last time, and the clean filter without blocking can be utilized to carry out catching of oil content.In addition, in the case, because fan 60 postpones a little just to start to rotate after smoke exhaust ventilator running starts, so before the rotation of fan 60 is about to begin, filter 10 rotates in short time.Like this, the moment that control part 90 can start with the rotation of the moment making the rotation of fan 60 start and motor 20 be not in the same time and the moment that the rotation of moment of terminating of the rotation of fan 60 and motor 20 terminates be that mode does not in the same time control.Accordingly, by making fan and filter rotate independently, can control more flexibly.
Certainly, also can as change case 7, control part 90 to make the rotation of motor 20 start and again to start after brief interruption to rotate in the rotation of fan 60 before fan 60 rotation, and the moment that the moment then making the rotation of fan 60 terminate and the rotation of motor 20 terminate is that phase mode in the same time controls.
In the change case 8 and 9 of the rotation of filter, control part 90 is to make the revolution of the time per unit of fan 60 change and to make the mode of the rotation speed change of motor 20 (filter 10) control according to the rotating speed of fan 60.The rate of change of the rate of change of the rotating speed of fan 60 and the rotating speed of motor 20 can be identical as change case 8, can be also different as change case 9.Accordingly, stronger centrifugal force can be applied when adhering to a lot of oil content and oil content be flown out fast from filter 10 prevent the blocking of filter 10, when reducing the adhesion amount of oil content and prevent the rotating speed of smoke exhaust ventilator slow, filter 10 is rotated with the high speed being more than or equal to required speed.In addition, also can as change case 8, control part 90 makes the rotating speed changed in stages of fan 60 and motor 20.Accordingly, the rotating speed easily can differentiated with weak such user in strong controls.In addition, in strong, the rotating speed of weak grade is relative rotating speed, and and do not mean that absolute rotating speed.
Usually, when carrying out producing the many cooking of oil smoke, select the fast rotating speed of fan to use.Therefore, the rotating speed that there is fan is faster, the trend that the oil smoke produced is more.That is, the rotating speed of fan is faster, and the amount being attached to the oil content on filter 10 is more and more quickly block.Therefore, by increasing and decreasing the revolution of the time per unit of filter 10 according to the rotating speed of fan, it can be made stronger centrifugal force is applied with more high-speed rotation when oil content attachment, oil content is flown out fast from filter 10 and prevents the blocking of filter 10, and can, when the rotating speed of fan is slow, prevent filter 10 from rotating with the high speed being more than or equal to required speed.
Table 1 represents the aperture (mm) of the filter in the present embodiment and the relation of rotating speed (rpm) and capture rate.Take aperture as the measurement that this Four types of 0.75mm, 1mm, 1.5mm, 2mm carries out capture rate.When the rotating speed of filter is 0rpm, no matter which kind of aperture, all lower than capture rate best in existing filter that is 70%, known in the filter do not rotated capture rate not high.
On the other hand, if make filter rotate with 1000rpm, even the filter of the then aperture 2mm that capture rate is minimum, capture rate is also 77%, exceedes the capture rate of existing best filter.In addition, along with aperture diminishes as 1.5mm, 1mm, 0.75mm, it is 80%, 86%, 88% that capture rate uprises further gradually.In addition, if the rotating speed of filter is arranged to 1500rpm, then along with aperture diminishes as 2mm, 1.5mm, 1mm, 0.75mm, it is 84%, 86%, 91%, 93% that capture rate uprises gradually.In addition, if the rotating speed of filter is arranged to 2000rpm, then along with aperture diminishes as 2mm, 1.5mm, 1mm, capture rate becomes 88%, 90%, 90%.Thus, smoke exhaust ventilator of the present invention makes filter rotate by making fan produce air stream, catches and comprises aerial oil content.In addition, if increase the revolution of the time per unit of filter or reduce aperture, then high oily capture rate can be obtained.
[table 1]
Fig. 8 is the test structure figure used in the test of the relation for obtaining the present embodiment and use the capture rate of the filter in the smoke exhaust ventilator of the slotted filter device of current version and oil content to adhere in the components downstream such as fan, pipeline.The different this point of capture rate in order to utilize the aperture of the filter of the present embodiment different also confirms the oil content attachment state in components downstream according to capture rate difference in the filter, as described belowly tests.
Method of testing is as follows.Above the heating plate of temperature-controllable, 800mm place arranges the smoke exhaust ventilator possessing filter of the present invention etc.Stainless steel cylinder placed by the heating plate being heated to 245 DEG C, from pump to described stainless steel cylinder within 2.5g/ minute, to drip oil with the 8g/ minute water that drips.Testing time is 10 minutes.In addition, the rotating speed of filter is 1500rpm.
Table 2 represents the result of this test.According to this test, then namely use in the smoke exhaust ventilator of slotted filter device at the smoke exhaust ventilator of current version, catch the oil content of 50% in the filter, and the oil content of 23% is attached in components downstream.The oil content of remaining 27% is discharged to the outside together with air.On the other hand, namely possess in the smoke exhaust ventilator of the filter of aperture 2.0mm at the smoke exhaust ventilator of the present embodiment, catch the oil content of 83% on the filter, components downstream is adhered to the oil content of 7%.In addition, in the smoke exhaust ventilator of filter possessing aperture 1.5mm, catch the oil content of 83% on the filter, components downstream is adhered to the oil content of 2%.In addition, in the smoke exhaust ventilator of filter possessing aperture 1.0mm, catch the oil of 87% on the filter, surprisingly in components downstream, do not adhere to oil content.
According to described test, compared with the capture rate of the smoke exhaust ventilator of existing type, in the smoke exhaust ventilator of the present embodiment, capture rate on the filter significantly improves 83% or higher.Its result, significantly can suppress the attachment of oil content in components downstream spending time when cleaning/cleaning and wait.If consider that capture rate the best of existing known smoke exhaust ventilator is also just 70%, no matter how varying aperture all has the capture rate being more than or equal to 83% to the smoke exhaust ventilator of the present invention then used in this test, and smoke exhaust ventilator of the present invention has high capture rate.Therefore, the downstream part of the filter of smoke exhaust ventilator of the present invention in air flow circuit does not almost have oil content to adhere to, so the burden of cleaning/filter rinsed downstream part significantly can be alleviated.
[table 2]
< second embodiment >
The explanation repeated with the first embodiment is omitted, and only difference is described.The present embodiment is compared with the first embodiment, and just control part is different with the control method of motor 20 for fan 60, so be described using control part 90A as control part.
Control part 90A controls in the mode making motor 20 not rotate in the minimum rank of the rotating speed of fan 60.That is, when changing the rotating speed of fan 60 as above-mentioned change case 8 and 9, control part 90A controls in the mode making motor 20 not rotate at the rotating speed hour of fan 60.As the Main Noise Sources produced from smoke exhaust ventilator, there is the fan, wind noise etc. of the air stream producing discharge.That is, because the noise of entirety is little when operating under the weak running of fan 60 waits the slow-speed of revolution, so the sound of the rotation of adjoint filter 10 and motor 20 is remarkable.Therefore, also there is the situation that filter can be made not rotate when weak running.Accordingly, in the obvious situation of sound of the rotation with filter, by making filter not rotate, quiet smoke exhaust ventilator can be provided.
On the contrary, fan 60 in or when operating under strong etc. higher rotation speed because the noise that sent by fan 60 of the rotation sound of filter 10 swallow up, so control part 90A makes filter 10 rotate.In addition, when the weak running of fan 60, because the general oil smoke produced by the cooking is also few, the total amount being attached to the oil content on filter 10 is also few, so do not need by rotation to prevent the blocking of filter 10.
In addition, control part 90A can with when rotate after fan 60 only rotates with the minimum rank of the revolution of the time per unit of fan 60 terminate, the mode that makes motor 20 (filter 10) rotate at the end of the rotation of fan 60 controls.Accordingly, by after the running of smoke exhaust ventilator terminates, such as when user leaves near the kitchen range top, filter 10 is made to rotate immediately, the oil content of attachment can be made to fly out, oil content is flown out fast from filter 10 and prevents the blocking of filter, the adhesion amount of oil content can be reduced and the smoke exhaust ventilator can not noticing noise for the user leaving smoke exhaust ventilator is provided.
In addition, the rank that the revolution of the time per unit of so-called fan 60 is minimum also can be rank minimum in the rotating speed of the fan 60 that hypothesis uses when cooking.Namely in the smoke exhaust ventilator being equipped with indoor overall normal ventilation function, generally, rotating speed during normal ventilation running is minimum, and the rotating speed of fan 60 such as becomes large according to the order of weak, medium, strong running.But, can not suppose to use normal ventilation in the cooking.Therefore, in this case, weak running can be adopted as the rank that the revolution of the time per unit of fan 60 is minimum.
In addition, the present invention is not limited to the embodiment of example, can implement according to the structure of scope of the every described content not departing from appended right.

Claims (8)

1. a smoke exhaust ventilator, is characterized in that, possesses:
Produce the fan of air stream;
The stream of described air stream is positioned at the filter of the side, upstream of described fan, and described filter has the hole making described air circulation;
Make the motor that described filter rotates;
Surround the oil content capturing means of the surrounding of described filter; And
Control the control part of the rotation of described fan and described motor,
Wherein, described control part can make described motor rotate at least one moment when making described fan turns,
Described control part makes the rotation speed change of described fan, and makes the rotation speed change of described motor according to the rotating speed of described fan.
2. smoke exhaust ventilator as claimed in claim 1, it is characterized in that, the moment that described control part starts with the moment making the rotation of described fan and start and the rotation of described motor for mutually in the same time and/or moment of terminating of moment of terminating of the rotation of described fan and the rotation of described motor control for phase mode in the same time.
3. smoke exhaust ventilator as claimed in claim 1, it is characterized in that, the moment that described control part starts with the moment making the rotation of described fan and start and the rotation of described motor for controlling in the same time mutually, and controls in the mode of the rotation terminating described motor after the rotation of described fan terminates after the stipulated time.
4. smoke exhaust ventilator as claimed in claim 1, it is characterized in that, described control part with the moment that the rotation of the moment making the rotation of described fan and start and described motor starts be not in the same time and moment of terminating of the rotation of moment of terminating of the rotation of described fan and described motor be that mode does not in the same time control.
5. smoke exhaust ventilator as claimed in claim 1, it is characterized in that, described control part makes the rotating speed of described fan and described motor hierarchically change.
6. a smoke exhaust ventilator, is characterized in that, possesses:
Produce the fan of air stream;
The stream of described air stream is positioned at the filter of the side, upstream of described fan, and described filter has the hole making described air circulation;
Make the motor that described filter rotates;
Surround the oil content capturing means of the surrounding of described filter; And
The control part that the rotating speed of described fan and described motor hierarchically changes can be made,
Wherein, described control part makes described motor not rotate in the minimum rank of the rotating speed of described fan,
In rank beyond described minimum rank, at least one moment when making described fan turns makes described motor rotate.
7. smoke exhaust ventilator as claimed in claim 6, is characterized in that, when terminating after described fan only rotates with the rank that the rotating speed of described fan is minimum to rotate, described control part makes described motor rotate at the end of the rotation of described fan.
8. the smoke exhaust ventilator as described in any one of claim 1 to 7, is characterized in that, the filter possessing the rotation controlling described motor rotates gauge tap.
CN201210337470.8A 2011-12-28 2012-09-12 Smoke exhaust ventilator Active CN103185359B (en)

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