CN1179525A - Cooking bonnet type exhausting fan - Google Patents
Cooking bonnet type exhausting fan Download PDFInfo
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- CN1179525A CN1179525A CN97113493A CN97113493A CN1179525A CN 1179525 A CN1179525 A CN 1179525A CN 97113493 A CN97113493 A CN 97113493A CN 97113493 A CN97113493 A CN 97113493A CN 1179525 A CN1179525 A CN 1179525A
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- fan
- blow
- outlet
- room
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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
- F24C15/2028—Removing cooking fumes using an air curtain
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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
- F24C15/2035—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention aims to produce a favorable air curtain without being influenced substantially by variations in blower load and moreover create the current of air with improved efficiency. A main body casing 22 has in its inside a lower fan chamber 27 and an upper fan chamber 31. The lower fan chamber 27 has an intake hole 28 in the middle of the lower part and blowout holes 29 along the periphery. The upper fan chamber 31 has a suction hole 32 in the lower part and an outlet hole 33 in the upper part. An impeller 34 has an upper impeller part 36, placed in the upper fan chamber 31, and a lower impeller part 38, placed in the lower fan chamber 27. A motor 39 rotates the impeller 34.
Description
The present invention relates to a kind of cooking bonnet type exhausting fan (rangehoodfan) that the gas that contains oil smoke cooking stove top, that will rise in the stove is discharged that is configured in.
Te Kaiping 1-306753 communique discloses a kind of structure of existing cooking bonnet type exhausting fan.As shown in figure 21, this cooking bonnet type exhausting fan is that inside with outer container 1 is as fan room 2, lower central portion in this fan room 2 forms suction inlet 3, on periphery, form blow-off outlet 4 simultaneously, and forming outlet 5 on top, this outlet 5 is by not shown blast pipe and external communications.
In the inside of fan room 2 centrifugal fan 6 is set, this centrifugal fan 6 is driven by the motor 7 of the upper plate portion outside that is installed in outer container 1, and this cooking bonnet type exhausting fan is configured on the not shown stove upper portion.
In above-mentioned structure, by rotating said fans 6, can with contain from the oil smoke that is placed on cooker on the stove etc. or from the gas of the burning gases of stove in suction inlet suction fan chambers 23, a part blows to the below from blow-off outlet 4, and remaining is discharged to the outside from outlet 5 by discharge pipe.
For present this stove, expectation makes the gas that blows out from blow-off outlet 4 form so-called air curtain, and the gas that utilizes this air curtain shape to flow makes the gas of the oil smoke that produces in stove etc. can not flow to other places and is collected.
Yet in above-mentioned existing structure, the draft capacity when the fan resistance of discharge oral-lateral changes (the fan resistance variation of blast pipe or the air door aperture deficiency in the outside, room) outside the room reduces, on the contrary, and from the gas amount of the blowing out increase of blow-off outlet 4.Therefore, the gas that forms air curtain flows through by force, impacts the stove part consumingly, and in this inside external diffusion in part place, the gas trapping effect of oil smoke etc. can reduce on the contrary.Otherwise the fan resistance of discharging oral-lateral hour reduces from the gas amount of blowing out of blow-off outlet 4, can not form effective air curtain, and this moment, the capture effect of gas of oil smoke etc. also can reduce.Promptly when the air-supply load variations, the gas trapping efficient of oil smoke etc. can reduce.
Te Kaiping 5-157306 communique discloses the device different with above-mentioned existing structure.Figure 21 summarily shows this device.In this device, discharge with the air curtain shape from blow-off outlet 12 from the gas that fan assembly 11 is discharged, suck gas such as oil smoke by another fan assembly 13 and with its discharge.
And, in this structure, because the gas direction of discharging from the spray Zi, one of the lunar mansions 11a of portion of the fan assembly 11 that forms air curtain becomes backward and blow out from the almost whole zone of outlet 12, therefore the efficient of blowing is poor, and bring the motor 14 of fan assembly 11 usefulness to maximize and the cost height, exist from the gas amount of blowing out of blow-off outlet 12 inhomogeneous in addition.The constricted flow that makes blow gas is in pipe 15, and even so, still therefore deficiency is difficult to form uniform air curtain so that the amount of blowing out of the gas of blow-off outlet 12 is even.
In view of the above-mentioned problems, the purpose of this invention is to provide a kind of influence of not blown the payload variation and still can form good air curtain, the capture effect of oil smoke etc. is higher, and at air-supply unnecessary raising motor ability and lower-cost cooking bonnet type exhausting fan during excellent in efficiency.
Cooking bonnet type exhausting fan of the present invention by:
Be configured in the body case of stove top;
Be arranged on this body lower box part, have suction inlet at the central portion of bottom and have the following fan room of its blow-off outlet in the form of a ring on the periphery in the bottom;
Top, its underpart of being arranged on this time fan room have the suction inlet that is communicated with this fan room, and have fan room on the scroll-type of outlet at other position;
Have the blade that is configured in fan chamber interior on this and be configured in the above-mentioned lower blade of fan chamber interior down, with these blades and lower blade rotating blades body and
The motor that above-mentioned blade body is rotated that is installed on the fixed position constitutes.
In this structure, when motor rotated, lower blade was in the indoor rotation of fan down, and blade is in the wind and is fanned indoor rotation.Because of lower blade rotates, the gas that contains oil smoke is sucked in the suction inlet of central portion, and a part wherein blows out from the blow-off outlet of periphery, and the gas stream that is blown out forms so-called air curtain.In addition, the rotation because of blade is discharged to the outside from the remainder that outlet will suck gas.At this moment, because of utilize lower blade and down the draft capacity determined of fan room produce the gas stream that forms air curtain, the definite draft capacity of fan room produces the gas stream of exhaust with utilizing blade to reach upward, for example, even the fan resistance of exhaust side change, the gas flow that blows out from blow-off outlet does not change substantially yet, can access to form stable air curtain effect.And, because of the gas of discharging is discharged from the outlet of last fan room, so, at the indoor barrier that does not have exhaust with pipe etc. of fan down, air-supply efficient height.And in following fan room, though the gas that sucks from the suction inlet of central portion blows out from the blow-off outlet of periphery substantially unchangeably, the housing of spiral type is positioned at fan room, and air-supply efficient also can not descend during the wind direction conversion, motor Miniaturizable and severe reducing cost.The amount of blowing out of the gas that blows out from blow-off outlet is even in addition.Because last fan room is a spiral type, therefore, can fully guarantee the draft capacity of exhaust.
The another kind of structure of cooking bonnet type exhausting fan of the present invention be by
Be configured in the stove body case top, that have blow vent;
Be arranged on this body lower box part, have suction inlet at the central portion of bottom and have its blow-off outlet in the form of a ring on the periphery in the bottom simultaneously, and have the following fan room of the peristome that is communicated with above-mentioned blow vent in center upper portion portion;
With its be arranged on discretely this time fan room suction inlet top, that its underpart has to be communicated with this fan room and have fan room on the scroll-type of outlet at other position;
Form suction inlet and the above-mentioned access of going up the suction inlet of fan room peristome, that be communicated with above-mentioned fan room down that connect above-mentioned fan room down, separate the communication means of the peristome of this access simultaneously;
Have the blade that is configured in fan chamber interior on this and be configured in the above-mentioned lower blade of fan chamber interior down, with these blades and lower blade rotating blades body and
The motor that above-mentioned blade body is rotated that is installed on the fixed position constitutes.
In this structure, when motor rotated, lower blade was in the indoor rotation of fan down, and blade is in the wind and is fanned indoor rotation.Because of blade rotates, the gas that contains oil smoke is attracted by access from the suction inlet of central portion, is discharged to the outside from outlet.In addition, because of the rotation of lower blade, the outer air of body case sucks from blow vent, by peristome, sucks down fan room and blows out from blow-off outlet, because of this air that blows out stream forms so-called air curtain.At this moment, because of utilize lower blade and down the draft capacity determined of fan room produce the gas stream that forms air curtain, the definite draft capacity of fan room produces the gas stream of exhaust with utilizing blade to reach upward, for example, even the fan resistance of exhaust side change, the gas flow that blows out from blow-off outlet does not change substantially yet, can access to form stable air curtain effect.And, because of the gas of discharging is discharged from the outlet of last fan room, so, at the indoor barrier that does not have exhaust with pipe etc. of fan down, air-supply efficient height.
And in following fan room, though the gas that sucks from the suction inlet of central portion blows out from the blow-off outlet of periphery substantially unchangeably, the housing of spiral type is positioned at fan room, and air-supply efficient also can not descend during the wind direction conversion, motor Miniaturizable and severe reducing cost.The amount of blowing out of the gas that blows out from blow-off outlet is even in addition.Because last fan room is a spiral type, therefore, can fully guarantee the draft capacity of exhaust.
Especially, suck air from suction inlet during owing to exhaust, suck the air that forms air curtain, therefore can more easily guarantee independently air quantity from the blow vent different with suction inlet.And, owing to do not contain oil smoke in the air of formation air curtain, therefore can prevent that the user from touching oil smoke.
At this moment, owing to adopted the structure of pipeline with blow vent and room external communications, ambient atmos is sucked in the room, and utilize this ambient atmos, realized the substitution of the air in the room and eliminated the negative pressure in the room and can improve the arresting efficiency of the air of oil smoke etc. as air curtain.
Make the structure that is communicated with in blow vent and the room by employing, utilize air in the room beyond the stove part as air curtain.Directly upward discharge with the air of stove part because of the part of air curtain this moment, so the air in the room beyond the stove part is also discharged at leisure, and the ventilation of room integral body is fine.
Cooking bonnet type exhausting fan of the present invention also have a kind of structure be by
Be configured in stove top, have with the room that disposes this stove in the body case of the blow vent that is communicated with;
Be arranged on this body lower box part, have suction inlet at the central portion of bottom and have its blow-off outlet in the form of a ring on the periphery in the bottom simultaneously, and have the following fan room of the peristome that is communicated with above-mentioned blow vent in center upper portion portion;
Be arranged on the top, that its underpart has a suction inlet of this time fan room discretely with it and have fan room on the scroll-type of outlet at other position;
Form suction inlet and the above-mentioned access of going up the suction inlet of fan room peristome, that be communicated with above-mentioned fan room down that connect above-mentioned fan room down, separate the communication means of the peristome of this access simultaneously;
Have the Sirocco fan (sirocco fan) that is positioned at fan chamber interior on this, from the bottom of this Sirocco fan extend downwards connect the peristome of fan room down form the access of the history inlet that is communicated with fan room down and the above-mentioned upward suction inlet of fan room and separate this access and peristome communication means and with being positioned at that the bottom of this communication means combines under the blade body of Sirocco fan of fan chamber interior;
Be installed in fan chamber interior on this and be in the wind the fan chamber and down the motor that above-mentioned blade body is rotated of the stationary parts of fan outdoor constitute.
In this structure, when motor rotated, lower blade was in the indoor rotation of fan down, and blade is in the wind and is fanned indoor rotation.Because of blade rotates, the gas that contains oil smoke is attracted by access from the suction inlet of central portion, is discharged to the outside from outlet.In addition, because of the rotation of lower blade, the air beyond the stove portion in the room sucks from blow vent, by peristome, sucks down fan room and blows out from blow-off outlet, because of this air that blows out stream forms so-called air curtain.At this moment, because of utilize lower blade and down the draft capacity determined of fan room produce the gas stream that forms air curtain, the definite draft capacity of fan room produces the gas stream of exhaust with utilizing blade to reach upward, for example, even the fan resistance of exhaust side change, the gas flow that blows out from blow-off outlet does not change substantially yet, can access to form stable air curtain effect.
And, because of the gas of discharging is discharged from the outlet of last fan room, so, at the indoor barrier that does not have exhaust with pipe etc. of fan down, air-supply efficient height.And in following fan room, though the gas that sucks from the suction inlet of central portion blows out from the blow-off outlet of periphery substantially unchangeably, the housing of spiral type is positioned at fan room, and air-supply efficient also can not descend during the wind direction conversion, and the motor Miniaturizable also can reduce cost.Especially, the reason Sirocco fan constitutes lower blade portion, and the shape of fan room is not down added restriction, from the entire circumference of blow-off outlet blow out air equably.And, because of last fan room is a spiral type, and constitute blade portion, so the static pressure height can fully be guaranteed the draft capacity of exhaust by Sirocco fan.
Especially, suck air from suction inlet during owing to exhaust, suck the air that forms air curtain, therefore can more easily guarantee independently air quantity from blow vent.Make the structure that is communicated with in blow vent and the room owing to adopt, utilize stove partly the air in addition the room as air curtain.Directly upward discharge with the air of stove part because of the part of air curtain this moment, so the air in the room beyond the stove part is also discharged at leisure, and the ventilation of portion's room integral body is fine.
In addition, because of motor being installed in body case inside, and the fan chamber and down on the static position of fan outdoor of being in the wind, suck this motor of air stream cooling that flows to peristome in the body case so can utilize from blow vent.
Fig. 1 is the longitudinal section side view of the first embodiment of the present invention.
Fig. 2 is the longitudinal section side view that briefly shows the configuration status of stove bell-type ventilating fan.
Fig. 3 is the part perspective view of looking up.
Fig. 4 is the cross-sectional view of blade portion.
Fig. 5 is the longitudinal section side view of the second embodiment of the present invention.
Fig. 6 is the longitudinal section side view of the third embodiment of the present invention.
Fig. 7 is the perspective view of blade body.
Fig. 8 is the longitudinal section side view of the fourth embodiment of the present invention.
Fig. 9 is the longitudinal section side view of the fifth embodiment of the present invention.
Figure 10 is the longitudinal section side view of the sixth embodiment of the present invention.
Figure 11 is the longitudinal section side view of the seventh embodiment of the present invention.
Figure 12 is the longitudinal section side view of the eighth embodiment of the present invention.
Figure 13 is the longitudinal section front view that briefly shows the configuration status of stove Hhood fan.
The longitudinal section side view of Figure 14 ninth embodiment of the present invention.
Figure 15 is the longitudinal section front view that briefly shows the configuration status of stove Hhood fan.
Figure 16 is the part perspective view that the tenth embodiment of the invention part is shown.
Figure 17 is the part perspective view that the eleventh embodiment of the invention part is shown.
Figure 18 is the part perspective view that the twelveth embodiment of the invention part is shown.
Figure 19 is the part perspective view that the thriteenth embodiment of the invention part is shown.
Figure 20 is the summary longitudinal section front view of existing example.
Figure 21 is the summary longitudinal section front view of existing another example.
Below, with reference to accompanying drawing 1 to Fig. 4 the first embodiment of the present invention is described.The body case 22 of cooking bonnet type exhausting fan 21 is positioned on the wall 23a in room 23 that stove 24 top positions are installed in kitchen etc.Installation lower panel 25 below this body case 22 is the outer box part 26 of horizontal cross-section and on this lower panel 25 surrounding wall portion 26a is installed, and these lower panels 25 and outer box part 26 constitute fan room 27 down.The formation central portion has trumpet-shaped suction inlet 28 and its all facial seam formula blow-off outlet 29 for ring-type (being essentially ring-type this moment) on the above-mentioned lower panel 25 of the bottom that is equivalent to this time fan room 27.In the case, the periphery sidepiece of blow-off outlet 29, the vertical sectional shape of the surrounding wall portion 26a of promptly outer box part 26 are vertical configuration.Above-mentioned stove 24 has two heating gate 24a, 24a side by side, and above-mentioned blow-off outlet 29 is round the shape of heating gate 24a, the 24a of stove 24 (being above-mentioned ring-type this moment).
Spiral type case member 30 is installed on the upper plate portion 26b of above-mentioned shell 26, is formed fan room 31 on the spiral type by this case member 30 and upper plate portion 26b.The bottom of fan room 31 is the suction inlet 32 that forms fan room 27 under the connection on the upper plate portion 26b on this, and in addition, other position is that right part forms outlet 33 upwards among Fig. 1.This outlet 33 is outstanding upward from the 22b of hole portion of the upper plate portion 22a formation of body case 22, and this outlet 33 is communicated with the outside (outside the room) in this room 23 by not shown pipeline.
Blade body 34 is to constitute like this, is vertically installed with a plurality of blade portion 36 on the periphery of circular end plate 35, and by the connecting plate 37 of annular plate-like a plurality of lower blade portion 38 is installed vertically in the bottom of this blade portion 36.As shown in Figure 4, each blade part 36,38 is made of the so-called Sirocco fan of rotation direction (arrow F direction) towards the place ahead with respect to blade body 34.Such blade body 34 is installed on the turning cylinder 39a of following motor 39, and blade portion 36 is positioned at fan room 31, and lower blade portion 38 is positioned at fan room 27 down.The axial length of blade portion 36 is longer than the axial length of lower blade portion 38.
On the other hand, installation filter 40 below body case 22, this filter 40 covers above-mentioned suction inlet 28 and blow-off outlet 29.
In addition, as shown in Figure 3, guidance panel 41 is installed on the outside of preceding board 22c of body case 22, being provided with respectively on it both turned round beginning switch and (by force) the switch 42a that makes to switch running intensity, (in) switch 42b, (weak) switch 42c, also be provided with the shutdown switch 43 that turns round.
On the right plate 22d of body case 22, be provided with the change-over switch 44b that uses change-over switch 44a and reduction usefulness as the reinforcement of switch means.
And, because of can controlling to power supply (commercial ac power source) phase place of motor, thus velocity of rotation can be controlled to be (height), (in), (low) for example, operates above-mentioned (by force) switch 42a respectively, (in) switch 42b and (weak) switch 42c, motor 39 is just with at a high speed, middling speed with slowly run.At this moment, the switch 44b that strengthens the switching usefulness of the change-over switch 44a of usefulness and the usefulness that weakens considers 29 height from stove 24 to blow-off outlet, is used to adjust draft capacity.
Promptly, when stove 24 is higher to the aspect ratio of blow-off outlet 29, to form suitable air curtain draft capacity higher good for the speed before arriving stove 24, when stove 24 hangs down to the aspect ratio of blow-off outlet 29, for the speed before arriving stove 24 can form suitable air curtain, draft capacity is lower, and good, when cooking bonnet type exhausting fan 21 is installed, in above-mentioned setting height(from bottom) when higher, the change-over switch 44a of usefulness is strengthened in operation, the change-over switch 44b of operation reduction usefulness when above-mentioned setting height(from bottom) is relatively lower.When the change-over switch 44a of usefulness is strengthened in operation, control phase makes such rotation speed (height), (in), (low) improves some amounts respectively, when operating the change-over switch 44b of reduction usefulness, control phase makes such rotation speed (height), (in), (low) reduces some amounts respectively, thereby reaches the adjustment draft capacity.
Strengthen the change-over switch 44a of usefulness and reduction usefulness change-over switch 44b because usually need not, so be installed in operation comparatively on the right plate 22d of the written or printed documents case 22 of inconvenience.Except control phase is adjusted its draft capacity, can also realize by the shunting tap (Tap) or the control reverser of switch motor.
In the present embodiment of above-mentioned formation, when motor 39 rotates, lower blade portion 38 is rotating in the fan room 27 down, blade portion 36 is in the wind to fan in the chamber 31 and rotates, because the rotation of lower blade portion 38, the air that contains oil smoke etc. sucks the suction inlet 28 of central portions with the direction shown in the arrow A by filter 40, and a part wherein blows out (reference arrow B) from the blow-off outlet 29 of periphery by filter 40.At this moment, its outer periphery portion is surrounding wall portion 26a because of being that vertical configuration vertically blows out.Because of this air has the rotation composition, this air curtain most cases is so-called scrollwork stream.In addition, the remainder that sucks air because of the rotation of blade 36 is discharged to the external world from outlet 33.
Adopt present embodiment, fan room 27 determines because of draft capacity reaches down by lower blade portion 38, produce the air stream that forms air curtain, go up the air stream that fan room's 31 definite draft capacities generations are used for exhaust with reaching by blade portion 36, so even the fan resistance of exhaust side changes, the air capacity that blows out from blow-off outlet 29 can not change substantially, can obtain stable air curtain effect.And the air of discharge flows out from the outlet 33 of last fan room 31, does not have the barrier of exhaust with pipeline etc. in fan room 27 down, and air-supply efficient is higher.And, in following fan room 27, make from suction inlet 28 inhaled airs of central portion and substantially intactly blow out from periphery blow-off outlet 29, so the shell of spiral type is configured in the fan room, during the wind direction conversion, air-supply efficient descends hardly, consequently can make motor 39 miniaturizations and reduces cost.And the air capacity that blows out from blow-off outlet 29 is even.Because last fan room 31 is a spiral type, also can fully guarantee the draft capacity of exhaust.
Though pass through a filter 40 from outlet 33 rows to air outside basically from what suction inlet 28 sucked, and the air (circulating air) that blows out from blow-off outlet 29 that sucks from suction inlet 28 can pass through filter 40 once more, the result is that secondary passes through filter 40, therefore can purify the air as air curtain effectively.And the part air that plays the air curtain effect, and is inhaled into from suction inlet 28 once more by filter 40 (result is three times) with the oil smoke that rises from stove 24 etc., and part is discharged, and purification efficiency that therefore should the discharge air is high.That is to say, high because of the purification efficiency of circulating air, once do not compare for the air that should discharge by the situation of filter yet, also can improve the purification efficiency of discharging air.
In addition, adopt present embodiment, change-over switch 44b is used in adjusting the reinforcement usefulness change-over switch 44a of draft capacity and weaken by handover operation according to this height of being provided with because having considered the height from the stove part to blow-off outlet, so all can form suitable air curtain before stove 24 parts.Promptly, when 29 height is higher from stove 24 to blow-off outlet, in order before stove 24 parts, to form suitable air curtain, draft capacity is higher good, when 29 height was low from stove 24 to blow-off outlet, in order to form suitable air curtain before stove 24 parts, draft capacity is lower, and good, according to present embodiment, when above-mentioned setting height(from bottom) was higher, the change-over switch 44a of usefulness was strengthened in operation, just can improve draft capacity, and when above-mentioned setting height(from bottom) was low, the change-over switch 44b of operation reduction usefulness can reduce draft capacity, so, can before stove 24 parts, form suitable air curtain preferably.21 height remains on more than the 80cm usually from stove 24 to cooking bonnet type exhausting fan, and in general, employing 80 to 100cm is better.
In addition, adopt present embodiment,, can improve the efficient that capture contains the gas of oil smoke etc. because therefore whole heating gate 24a on stove 24 of 29 one-tenths of blow-off outlets, the shape of 24b can form the air curtain that covers the stove part.Though stove has the situation of a heating gate or has the situation of three above heating gates, the shape of blow-off outlet preferably can surround whole heating gates.
According to present embodiment, because the axial length of blade portion 36 is longer than the axial length of lower blade portion 38, so the draft capacity of blade portion 36 is bigger, and the exhaust capacity of oil smoke etc. is better.
Fig. 5 illustrates the second embodiment of the present invention.In the present embodiment, the 51a of blade portion of blade part 34 and the 51b of lower blade portion are by a global facility, and promptly vane plate 51 constitutes, and is different with first embodiment with regard to this point.In the case, the part that is positioned at fan room 31 positions on the vane plate 51 is equivalent to the 51a of blade portion, and being positioned at down, the part of fan room 27 is equivalent to the 51b of lower blade portion.So also can produce the effect identical with first embodiment.
Fig. 6 and Fig. 7 illustrate the third embodiment of the present invention.In the present embodiment, the formation of blade body 61 is different with first embodiment.That is, for blade body 61, blade portion 36 is Sirocco fans, but lower blade portion 62 is made of turbofan.This lower blade portion 62 with respect to the rotation direction (shown in the arrow F) of blade body 61 towards so-called back to inclination.At this moment, the diameter of lower blade portion 62 big than blade portion 36.This lower blade portion 62 is connected with blade portion 36 by connecting end plate 63, and another piece connecting plate is installed in the bottom of this blade part 62.
According to present embodiment, owing to constitute lower blade portion 62, therefore do not need so-called spiral type shell just can improve draft capacity by turbofan, particularly, can fully obtain the rotation composition of air curtain, high to the capture of the gas that contains oil smoke.
Fig. 8 illustrates the fourth embodiment of the present invention, in the present embodiment, and the lower blade portion 62 of blade body 61 and the diameter of blade portion 36 basic identical (outside dimension is identical).In the present embodiment, compare, also can improve draft capacity, can obtain the rotation composition of air curtain simultaneously fully, can improve the capture effect of the gas that contains oil smoke with first embodiment.
Fig. 9 illustrates the fifth embodiment of the present invention, and in the present embodiment, following some is different with first embodiment.Be to form blow vent 71 on the upper plate portion 22 of body case 22, this blow vent 71 is by not shown pipeline and external communications.In addition, the top of following fan room 27 is that the upper plate portion 26b of shell 26 go up to form bigger opening 72, formations on the shell 73 of fan room 31 and formation down fan room 27 shell 26 from.Shell 73 is made of spiral type shell 73a that forms outlet 33 and the lower plate 73b that forms suction inlet 32.The gap 74 and above-mentioned open communication of this shell 73 and shell 26.
This blade body 75 is such structures: a plurality of blade portion 36 vertically is installed on the periphery of circular end plate 35, on the bottom of this blade portion 36, connect annular connecting plate 37, below this connecting plate 37, the bigger annular endplate of diameter 77 is installed by connector 76, this above end plate 77 installation by the lower blade portion 78 that constitutes as turbofan auxiliary end plate 79 is installed in the upper end of this lower blade portion 78.The ratio open portion 72 that lower blade portion 78 is positioned at following fan room 27 is more near the position of peripheral part.
In the above-described configuration, when motor 39 rotated, lower blade portion 78 was rotating in the fan room 27 down, and blade portion 36 is in the wind to fan in the chamber 31 and rotates.So as shown by arrows, the gas that contains oil smoke sucks by the suction inlet 28 of filter 40 from central portion, wherein a part blows out by the blow-off outlet 29 of filter 40 from periphery, and remainder is discharged from outlet 33 in addition.Blow vent 71 sucks extraneous air in the body case 22, sucks fan room 27 down by gap 74 and peristome 72, blows out from blow-off outlet 27 by filter 40.The air stream that is blown out forms so-called air curtain.
Adopt present embodiment, the portion gas and the extraneous air that contain oil smoke form air curtain together, can obtain the effect identical with first embodiment.Blow vent 71 is preferably disposed near the position that can suck air of for example ceiling in the body case 22.
Figure 10 illustrates the sixth embodiment of the present invention, and in the present embodiment, some following different .. with first embodiment promptly form blow vent 81 on the upper plate portion 22a of body case 22, and this blow vent 81 is by not shown pipe and external communications.In addition, the top of following fan room 27 is the bigger peristome 82 of the last formation of upper plate portion 26b of shell 26.
The shell 26 of fan room 27 is separated the shell 83 of fan room 31 with constituting down on the formation.Shell 83 is made of spiral type shell 83a that forms outlet 33 and the lower plate 83b that forms suction inlet 32.The gap 84 of this shell 83 and shell 26 is communicated with above-mentioned peristome 82.
This blade body 85 is such structures: a plurality of blade portion 36 vertically is installed on the periphery of circular end plate 35, on the bottom of this blade portion 36, connect annular connecting plate 37, below this connecting plate 37, the bigger annular endplate of diameter 87 is installed by tubular connector 86, this above end plate 87 installation by the lower blade portion 88 that constitutes as turbofan auxiliary end plate 89 is installed in the upper end of this lower blade portion 88.The ratio open portion 82 that lower blade portion 78 is positioned at following fan room 27 is more near the position of peripheral part.
Above-mentioned communication means 86 connects the opening 82 of fan room 27 down, and the access 90 of the suction inlet 32 of the suction inlet 28 of fan room 27 and last fan room 31 cut off this access 90 and peristome 32 simultaneously under formation was communicated with.
In the above-described configuration, when motor 39 rotations, when lower blade portion 88 and blade portion 36 rotate, at first, because of the rotation of blade portion 36, then as shown by arrows, the air that contains oil smoke etc. is inhaled into from access 90 from the suction inlet 28 of central portion, from outlet 33 rows to the outside.In addition, because of the rotation of lower blade portion 88, the air from blow vent 81 sucks outside the room 23 sucks fan room 27 down by peristome 82, and blows out from blow-off outlet 29, and the air stream that is blown out forms so-called air curtain.
In the present embodiment, fan room 27 determines because of draft capacity reaches down by lower blade portion 88, produce the air stream that forms air curtain, go up the air stream that fan room's 31 definite draft capacities generations are used for exhaust with reaching by blade portion 36, so even the fan resistance of exhaust side changes, the air capacity that blows out from blow-off outlet 29 can not change substantially, can obtain stable air curtain effect.And the air of discharge flows out from the outlet 33 of last fan room 31, does not have the barrier of exhaust with pipeline etc. in fan room 27 down, and air-supply efficient is higher.And, in following fan room 27, make from suction inlet 28 inhaled airs of central portion and substantially intactly blow out from periphery blow-off outlet 29, so the shell of spiral type is configured in the fan room, during the wind direction conversion, air-supply efficient descends hardly, consequently can make motor 39 miniaturizations and reduces cost.And the air capacity that blows out from blow-off outlet 29 is even.Because last fan room 31 is a spiral type, also can fully guarantee the draft capacity of exhaust.
Especially, because the air that should discharge sucks from suction inlet 28, the air that forms air curtain sucks from blow vent, therefore is very easy to guarantee independently air quantity, can form stable air curtain effect.Do not contain oil smoke in the air of formation air curtain, just can the user contact oil smoke.
According to present embodiment, because blow vent 81 is by not shown pipe and room 223 external communications, extraneous gas can be sucked in the room 23 and with it as air curtain, realized in the room 23 air replace and elimination portion negative pressure within doors, and improve the arresting efficiency of the air of oil smoke etc.
Be positioned at the inside of body case 22 because of motor 39 but be positioned at outside fan room 27 and 31, so by the air stream cooling motor 39 that flows to peristome 82 from blow vent 81.
Figure 11 shows the seventh embodiment of the present invention, in the figure, with room 23 in form blow vent 91 on the position that is communicated with, this point is different with the 6th embodiment.
In the 7th embodiment, rotation because of lower blade portion 88, the partly outer room 23 interior air of stove suck in the body casees 22 from blow vent 91 as shown by arrows, blow out by fan room 27 under peristome 82 suctions and from blow-off outlet 29, form so-called air curtain by the air stream that blows out.At this moment, the part of air curtain is discharged upward with the air of stove 24 parts, and the air in the room 23 beyond stove 24 parts is also discharged at leisure, has improved the ventilation effect in the whole room 23.
Figure 12 and Figure 13 show the eighth embodiment of the present invention, in this embodiment, and some following different with the 3rd embodiment (Fig. 6).That is, in the 3rd embodiment, for the following surrounding wall portion 26a of the outer then periphery of fan room 27 becomes vertical configuration, but in the 8th embodiment, the section of surrounding wall portion 26 is an arcuation, and special lower side tilts to the inside.In the present embodiment, the ratio height in the air flow that blows out from blow-off outlet 29 as shown in figure 13, forms inside slightly air curtain.Adopt such air curtain, when stove 24 is smaller, can form the air curtain that covers this stove part well.Especially, make the section of surrounding wall portion 26a in the arc-shaped, only compare for the intilted situation of straight line with making surrounding wall portion 26a, air flows smooth, and fan resistance is little.In general, the size of stove (horizontal wide) is 60cm, 75cm and 90cm the most representative (above-mentioned size is in addition also arranged).
Figure 14 and Figure 15 illustrate the ninth embodiment of the present invention, and in this embodiment, following is a bit different with the 3rd embodiment.That is, in the 9th embodiment, 26 one-tenth circular-arc sections that tilt laterally of surrounding wall portion.Composition outside the air stream that this embodiment blows out from blow-off outlet 29 points to is more, as shown in figure 15, forms outside slightly air curtain.Such structure just in time cooperates with big stove 24.Especially, make surrounding wall portion 26a become section circular-arc, and only make the surrounding wall portion 26a outward-dipping comparison that is in line, air flows smooth, and fan resistance is little.
Figure 16 illustrates the tenth embodiment of the present invention, and in this embodiment, it is different with first embodiment that guiding parts 101 this point are set.That is, in the one of the limit of blow-off outlet 29, on the side corresponding with the wall 23a in the room 23 that disposes body case 22 guiding parts 101 is set, this guiding parts 101 has the spigot surface 101a that is communicated with blow-off outlet 29.
According to present embodiment, the air that blows out from blow-off outlet 29 can prevent that the bight of wall 23 and lower plate 25 from becoming turbulent flow, can carry out rectification to the air that blows out from blow-off outlet 29, can form good air curtain when little air quantity.
Figure 17 shows the 11 embodiment, and wherein body case 22 is arranged on wall 23a and the wall 23b, this moment the guiding of guiding parts 102 and 102a with respect to each wall 23a, 23b.In the present embodiment, also can obtain identical effect with above-mentioned the tenth embodiment.
Figure 18 illustrates the 12nd embodiment of the present invention, and in the present embodiment, it is oval that blow-off outlet 29 is essentially, and this point is different with first embodiment.The front portion that is blow-off outlet 29 is essentially straight line, and the rear portion is a circular arc.The heating gate 24a that present embodiment is suitable for stove 24 is 3 a situation.That is, three ocular form stoves 24 are 2 of sides nearby usually, 1 heating gate 24a of rear side central portion, and the shape rear portion becomes circular-arc because the front portion of blow-off outlet 29 is in line basically, can form the air curtain that is appropriate to stove 24.And, because this air curtain so the user who cooks before stove 24 can directly not contact oil smoke within a large range, uses very good at the horizontal broad of side nearby.
Figure 19 illustrates the 13rd embodiment of the present invention, and in the present embodiment, the shape of blow-off outlet 29 is different with first embodiment.The front portion that is blow-off outlet 29 almost is a straight line, and it is circular-arc that the rear portion becomes.According to present embodiment, the heating gate 24 of stove 24 be three best.Promptly three ocular form stoves 24 usually nearby side two heating gates 24 are arranged, and inboard central portion has a heating gate 24.The shape because the front portion of blow-off outlet 29 is in line, rear portion become circular-arc, can form the air curtain that is suitable for this stove 24.And, because the outside broad of this air curtain so the user that can will cook before stove 24 in very wide scope isolates with direct oil smoke from stove 24, uses as safe as a house.
The present invention can obtain following effect as mentioned above.
The claim 1 according to the present invention becomes about the air-supply load of the fan resistance that is not subjected to exhaust side etc. Form good air curtain under the impact of changing, and can improve the capture effect of the gas of air-supply efficient and oil smoke etc., Simultaneously, needn't improve the ability of motor and can make the motor miniaturization and reduce cost, also can fully guarantee exhaust Draft capacity.
According to claim 2 of the present invention, except the effect that can obtain claim 1 of the present invention, because Suck the gas that to discharge from suction inlet, suck to forming the sky of air curtain from other blow vent that is different from suction Therefore gas be more prone to guarantee can form stable air curtain by independently air quantity, and, because form air curtain Air in do not contain oil smoke, so can prevent that the user from contacting oil smoke.
According to claim 3 of the present invention, air in the reason room forms air curtain, so that whole room Ventilation property forms fine under the impact that changes about the air-supply load of the fan resistance that is not subjected to exhaust side etc. Air curtain, needn't improve the ability of motor and can make the motor miniaturization and reduce cost, again because blade section Be made of Sirocco fan, lower blade section is made of turbofan, so can improve the air-supply that forms air curtain Ability particularly, can access the rotation composition of air curtain, can improve the trapping ability of the gas that contains oil smoke, Also can utilize in addition the air that forms air curtain to come cooling fan.
According to claim 4 of the present invention, the part of the air that contains oil smoke that sucks from suction inlet and from The air that blow vent sucks forms air curtain together, can access the effect identical with claim 1.
The claim 5 according to the present invention, the outer gas that sucks from blow vent plays the effect that forms air curtain, can carry The ventilation in high section room and prevent that negative pressure from producing.
The claim 6 according to the present invention, the air in the room that blow vent sucks forms air curtain, still can not The enough gas that purifies the oil smoke that rises from stove etc., and can purify air in the whole room.
The claim 7 according to the present invention because considered the height from the stove to the blow-off outlet, is provided with and can advances The switching device shifter that row switches is according to the variable draft capacity of this handover operation, so can arrange according to the stove bell-type The setting height(from bottom) of fan also can form suitable air curtain when improper to the stove part.
According to claim 8 of the present invention, because the shape of blow-off outlet is on stove or owns Therefore a plurality of heating gates, can form the fine air curtain that covers stove.
The claim 9 according to the present invention, because the outboard peripheries section of blow-off outlet is tilted to the inside, at the stove ratio Hour, can form the air curtain that covers well stove.
The claim 10 according to the present invention, because the outboard peripheries section of blow-off outlet is tilted laterally, at stove When bigger, can form the air curtain that covers well stove.
The claim 11 according to the present invention is circular section and outside owing to make the outboard peripheries section of blow-off outlet Roll tiltedly, when stove is bigger, can form the air curtain that covers well stove.
According to claim 12 of the present invention, because lower blade section is bigger than the diameter of blade section, be shape therefore Become air curtain and obtain sufficient draft capacity.
According to claim 13 of the present invention, because the axial length of blade section is than the axial length of lower blade section Degree is long, and the draft capacity of lower blade section is big, and the discharge of the gas of oil smoke etc. is good.
According to claim 14 of the present invention, because the room that sets body box in the edge of blow-off outlet Be provided with the guiding parts with the spigot surface that is communicated with blow-off outlet on corresponding that side of wall, therefore anti-End the air that blows out from blow-off outlet and produced turbulent flow in wall portions, and the air that blows out of rectifiable, at little wind Can form good air curtain during amount.
The claim 15 according to the present invention is because blow-off outlet is essentially oval, therefore at stove laterally When long, can form the air curtain of this stove part of fine covering.
According to claim 16 of the present invention, owing to make the front portion of the blow-off outlet shape that is in line, the rear portion is in the arc-shaped, Therefore be three stove at heating gate, can form the air curtain of fine covering stove, simultaneously at very wide model Enclosing interior user with the stokehold and oil smoke keeps apart.
According to claim 17 of the present invention, owing at suction inlet and blow-off outlet filter is set, can be clean Change the discharge air, particularly, when the part air amount was used as the formation air curtain, these gas cleaning effects more Good.
Want bright 18 according to of the present invention, blade section is made of Sirocco fan, and lower blade section is by turbofan Consist of, therefore can fully guarantee the draft capacity of exhaust, can improve the draft capacity that forms air curtain simultaneously, the spy Be not, can obtain the rotation composition of air curtain, the capture effect of air that contains oil smoke is higher.
Claims (18)
1. cooking bonnet type exhausting fan, it is characterized in that this ventilating fan by
Be configured in the body case of stove top;
Be arranged on this body lower box part, have suction inlet at the central portion of bottom and have the following fan room of its blow-off outlet in the form of a ring on the periphery in the bottom;
Top, its underpart of being arranged on this time fan room have the suction inlet that is communicated with this fan room, and have fan room on the scroll-type of outlet at other position;
Have the blade that is configured in fan chamber interior on this and be configured in the above-mentioned lower blade of fan chamber interior down, with these blades and lower blade rotating blades body and
The motor that above-mentioned blade body is rotated that is installed on the fixed position constitutes.
2. cooking bonnet type exhausting fan, it is characterized in that by
Be configured in the stove body case top, that have blow vent;
Be arranged on this body lower box part, have suction inlet at the central portion of bottom and have its blow-off outlet in the form of a ring on the periphery in the bottom simultaneously, and have the following fan room of the peristome that is communicated with above-mentioned blow vent in center upper portion portion;
With its be arranged on discretely this time fan room suction inlet top, that its underpart has to be communicated with this fan room and have fan room on the scroll-type of outlet at other position;
Form suction inlet and the above-mentioned access of going up the suction inlet of fan room peristome, that be communicated with above-mentioned fan room down that connect above-mentioned fan room down, separate the communication means of the peristome of this access simultaneously;
Have the blade that is configured in fan chamber interior on this and be configured in the above-mentioned lower blade of fan chamber interior down, with these blades and lower blade rotating blades body and
The motor that above-mentioned blade body is rotated that is installed on the fixed position constitutes.
3. cooking bonnet type exhausting fan, it is characterized in that by
Be configured in stove top, have with the room that disposes this stove in the body case of the blow vent that is communicated with;
Be arranged on this body lower box part, have suction inlet at the central portion of bottom and have its blow-off outlet in the form of a ring on the periphery in the bottom simultaneously, and have the following fan room of the peristome that is communicated with above-mentioned blow vent in center upper portion portion;
Be arranged on the top, that its underpart has a suction inlet of this time fan room discretely with it and have fan room on the scroll-type of outlet at other position;
Form suction inlet and the above-mentioned access of going up the suction inlet of fan room peristome, that be communicated with above-mentioned fan room down that connect above-mentioned fan room down, separate the communication means of the peristome of this access simultaneously;
Have the Sirocco fan that is positioned at fan chamber interior on this, from the bottom of this Sirocco fan extend downwards connect the peristome of fan room down form the access of the history inlet that is communicated with fan room down and the above-mentioned upward suction inlet of fan room and separate this access and peristome communication means and with being positioned at that the bottom of this communication means combines under the blade body of Sirocco fan of fan chamber interior;
Be installed in fan chamber interior on this and be in the wind the fan chamber and down the motor that above-mentioned blade body is rotated of the stationary parts of fan outdoor constitute.
4. cooking bonnet type exhausting fan according to claim 1 is characterized in that
On the body case, ventilating opening is set,
On constituting, there is the gap that is communicated with above-mentioned blow vent between the parts of fan room under the parts of fan room and the formation,
The lower blade portion of blade body is positioned at than the more close peripheral part of this peristome place.
5. according to claim 2 or 4 described cooking bonnet type exhausting fans, it is characterized in that blow vent is by pipeline and the external communications that sets the room of body case.
6 according to claim 2 or 4 described cooking bonnet type exhausting fans, it is characterized in that blow vent is communicated with within doors with the portion of configuration body case.
7. according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3, it is characterized in that having switching device shifter,, operate this switching device shifter, can change draft capacity according to height from the stove part to blow-off outlet.
8. according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3, it is characterized in that blow-off outlet is whole shape of the one or more heating gates on stove.
9. according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3, it is characterized in that the outboard peripheries portion of blow-off outlet tilts to the inside.
10. according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3, it is characterized in that the outboard peripheries portion of blow-off outlet tilts laterally.
11. according to the described cooking bonnet type exhausting fan of any one claim of claim 10, the cross section that it is characterized in that the outboard peripheries portion of blow-off outlet is a circular arc, and tilts laterally.
12., it is characterized in that the diameter of lower blade portion is bigger than the diameter of blade portion according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3.
13., it is characterized in that the axial length of blade portion is longer than the axial length of lower blade portion according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3.
14., it is characterized in that being provided with on the corresponding side of the wall in room in the blow-off outlet edge part and configuration body case and have the wealth of the spigot surface that is communicated with blow-off outlet to parts according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3.
15., it is characterized in that blow-off outlet is essentially oval according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3.
16. according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3, the front portion that it is characterized in that blow-off outlet is a linearity, the rear portion is circular-arc.
17. the described cooking bonnet type exhausting fan of any one claim according to claim 1-3 is characterized in that on suction inlet and blow-off outlet filter being set.
18. according to the described cooking bonnet type exhausting fan of any one claim of claim 1-3, it is characterized in that blade portion is made of Sirocco fan, lower blade portion is made of turbofan.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP090745/1996 | 1996-04-12 | ||
| JP090745/96 | 1996-04-12 | ||
| JP09074596A JP3720452B2 (en) | 1996-04-12 | 1996-04-12 | Range hood fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1179525A true CN1179525A (en) | 1998-04-22 |
| CN1113193C CN1113193C (en) | 2003-07-02 |
Family
ID=14007135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97113493A Expired - Fee Related CN1113193C (en) | 1996-04-12 | 1997-04-12 | Cooking bonnet type exhausting fan |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3720452B2 (en) |
| KR (1) | KR100202119B1 (en) |
| CN (1) | CN1113193C (en) |
| TW (1) | TW428712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246567A (en) * | 2016-07-04 | 2016-12-21 | 刘军 | A kind of filter-type kitchen guarding's variola box fan |
| CN110404178A (en) * | 2019-07-26 | 2019-11-05 | 青岛大学附属医院 | A kind of traditional Chinese medical bone fracture infrared thermotherapy instrument |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004060968A (en) * | 2002-07-26 | 2004-02-26 | Yamazen:Kk | Range hood |
| JP4808942B2 (en) * | 2004-08-06 | 2011-11-02 | 三菱電機株式会社 | Oil smoke collector |
| JP4730186B2 (en) * | 2006-04-25 | 2011-07-20 | Ｔｏｔｏ株式会社 | Range food |
| JP2008057839A (en) * | 2006-08-30 | 2008-03-13 | Toto Ltd | Range hood and its adjustment method |
| JP2008070049A (en) * | 2006-09-14 | 2008-03-27 | Toto Ltd | Range hood |
| WO2012102462A2 (en) * | 2011-01-26 | 2012-08-02 | (주)지텍 | Local exhaust device and irish kitchen system having same |
| KR101444338B1 (en) * | 2012-07-05 | 2014-10-07 | 김지하 | Local ventilator with swirler |
| EP3553391B1 (en) * | 2015-03-19 | 2021-05-26 | Lg Electronics Inc. | Cooking device |
| JP2016190183A (en) * | 2015-03-31 | 2016-11-10 | 東洋アルミエコープロダクツ株式会社 | Filter structure |
| CN105298888A (en) * | 2015-04-08 | 2016-02-03 | 杨小平 | Method for preventing reverse pollution from exhaust passage, exhaust fan low-speed controller and exhaust system capable of preventing reverse pollution |
| CN105066201A (en) * | 2015-07-24 | 2015-11-18 | 唐国锐 | Pneumatic beam-control lampblack guide method for range hood, and pneumatic beam-control lampblack guide range hood |
| KR102557926B1 (en) * | 2016-11-07 | 2023-07-21 | 삼성전자주식회사 | Cooking apparatus having hood |
| WO2018101801A1 (en) * | 2016-12-02 | 2018-06-07 | 엘지전자 주식회사 | Cookware and exhaust device |
| KR101936199B1 (en) * | 2016-12-02 | 2019-01-08 | 엘지전자 주식회사 | Cooking appliance and ventilating apparatus |
| CN106524267B (en) * | 2016-12-30 | 2020-08-11 | 宁波方太厨具有限公司 | Ceiling type range hood |
| CN107906575A (en) * | 2017-12-28 | 2018-04-13 | 杭州老板电器股份有限公司 | Air intake device and kitchen ventilator |
| CN109654572A (en) * | 2019-02-21 | 2019-04-19 | 海信(广东)厨卫系统有限公司 | A kind of air curtain apparatus and kitchen ventilator for kitchen ventilator |
| KR102059802B1 (en) * | 2019-05-24 | 2019-12-27 | 주식회사 토네이도시스템즈 | Range hood with vortex fan |
| JP6724220B1 (en) * | 2019-08-05 | 2020-07-15 | 株式会社ニトリホールディングス | Air purifier |
| KR102540638B1 (en) * | 2021-08-25 | 2023-06-07 | 탑에어주식회사 | Double fan and kitchen ventilation apparatus having the same |
-
1996
- 1996-04-12 JP JP09074596A patent/JP3720452B2/en not_active Expired - Fee Related
-
1997
- 1997-04-07 TW TW088212461U patent/TW428712U/en not_active IP Right Cessation
- 1997-04-11 KR KR1019970013343A patent/KR100202119B1/en not_active IP Right Cessation
- 1997-04-12 CN CN97113493A patent/CN1113193C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246567A (en) * | 2016-07-04 | 2016-12-21 | 刘军 | A kind of filter-type kitchen guarding's variola box fan |
| CN110404178A (en) * | 2019-07-26 | 2019-11-05 | 青岛大学附属医院 | A kind of traditional Chinese medical bone fracture infrared thermotherapy instrument |
| CN110404178B (en) * | 2019-07-26 | 2021-03-16 | 青岛大学附属医院 | Traditional Chinese medicine bone fracture infrared thermotherapy instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| TW428712U (en) | 2001-04-01 |
| CN1113193C (en) | 2003-07-02 |
| KR100202119B1 (en) | 1999-06-15 |
| JP3720452B2 (en) | 2005-11-30 |
| JPH09280621A (en) | 1997-10-31 |
| KR970070801A (en) | 1997-11-07 |
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