CN109780600A - A kind of range hood - Google Patents

A kind of range hood Download PDF

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Publication number
CN109780600A
CN109780600A CN201711107836.1A CN201711107836A CN109780600A CN 109780600 A CN109780600 A CN 109780600A CN 201711107836 A CN201711107836 A CN 201711107836A CN 109780600 A CN109780600 A CN 109780600A
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China
Prior art keywords
smoke
air inlet
turnover panel
collecting plate
impeller
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CN201711107836.1A
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Chinese (zh)
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CN109780600B (en
Inventor
梁雪斐
周佳杰
刘逸
茅忠群
诸永定
刘戈
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN201711107836.1A priority Critical patent/CN109780600B/en
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Abstract

The invention discloses a kind of range hoods, including exhaust fume collecting hood and the cabinet being arranged in above exhaust fume collecting hood, the smoke collecting chamber being recessed upwards is formed in the exhaust fume collecting hood, the bottom of the smoke collecting chamber is provided with smoke-collecting plate, blower fan system is provided in the cabinet, it is characterized by: the blower fan system includes the first ternary blower and the second ternary blower being arranged in parallel, it is offered on the smoke-collecting plate on a left side, spaced apart first air inlet hole and the second air inlet hole in right direction, the first turnover panel that can movably open or close the first air inlet hole is provided with above the smoke-collecting plate, and it can movably open or close the second turnover panel of the second air inlet hole.By the mobile turnover panel of setting, to open or close air inlet hole, two air inlet holes can be made all for respective burner on kitchen range, to make full use of negative pressuren zone to concentrate guiding respectively, promote smoke absorption effect;And two air inlet holes can be adjusted according to hearth service condition, accomplish precisely straight inhale.

Description

A kind of range hood
Technical field
The present invention relates to machine for kitchen use, especially a kind of range hood.
Background technique
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top Suction and near-absorption type, the principle that the range hood of top suction type utilizes hot gas to rise, suction is generated when cooking to be risen naturally Oil smoke, additionally due to it is clean and tidy light and handy, occupy little space the advantages that, and it is in an increasingly wide range of applications.
At present existing top-sucking kitchen ventilator (be mounted on right above kitchen range, thin type, deep type or tower range hood, Do not include side inhale and lower-discharging type) most structure type are as follows: top is arranged exhaust fume collecting hood and forms concave cavity (smoke collecting chamber), on exhaust fume collecting hood It is provided with air inlet and filter screen.The oil smoke generated during the cooking process is collected in smoke collecting chamber, and by connecting with smoke collecting chamber Logical air duct is discharged outdoor.A kind of kitchen hood as disclosed in the Chinese patent application No. is 200520086100.7, including The exhaust fume collecting hood and design that lower part is arranged in are provided in the middle part of exhaust fume collecting hood and are connected with air duct bottom end in the air duct on exhaust fume collecting hood top Air inlet ring, be provided with fan in air duct, air inlet ring lower part is provided with oil cleaner screen, and the lower part of oil cleaner screen is provided with lubricating cup.It is this The negative pressuren zone of range hood is concentrated mainly near air inlet, that is to say, that high negative pressure area is concentrated mainly on centre, this air draught It is unfavorable that mode uses the user using eyes stove or multi-hole kitchen range, and oil smoke is easy at left and right sides of smoke machine and front side is excessive.
In order to improve smoke absorption effect, some range hoods with smoke deflector also have been disclosed at present, oil smoke is by leading Wall attachment effect is generated when cigarette plate, enables to oil smoke two sides and front side guidance to the left and right.Such as application No. is 201410315985.7 Chinese patent application disclosed in a kind of top-sucking kitchen ventilator, including exhaust fume collecting hood and the air inlet of exhaust fume collecting hood bottom surface is set Mouthful, oil collection plate is fixed on the underface of air inlet, and the channel of four sides air inlet is constituted with air inlet bottom surface, and pod is located at oil-collecting The lower surface of plate;For another example 201410419676.4 include exhaust fume collecting hood, smoke deflector and body, offers air inlet on the exhaust fume collecting hood Mouthful, the air inlet setting of the deflector face exhaust fume collecting hood, and deflector and exhaust fume collecting hood keep scheduled spacing and form oil smoke Channel is provided with blower fan system in body.
These above-mentioned prior arts, blower fan system use be usually multi-wing centrifugal fan, and for single hole into Wind, air intake passage cannot be adjusted according to hearth service condition;And multi-wing centrifugal fan static pressure is low, and negative pressuren zone is small, lacks Negative pressure concentrates guiding, and fume exhaust effect is undesirable, if cannot be concentrated use in negative pressuren zone, is difficult to solve to run cigarette and ask Topic;Range hood when not in use, cannot be automatically closed, not can effectively prevent the taint of odour of oil smoke.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above-mentioned problems of the prior art, providing a kind of raising oil suction The range hood of cigarette efficiency.
The technical scheme of the invention to solve the technical problem is: a kind of range hood, including exhaust fume collecting hood and set The cabinet above exhaust fume collecting hood is set, the smoke collecting chamber being recessed upwards, the bottom setting of the smoke collecting chamber are formed in the exhaust fume collecting hood There is smoke-collecting plate, be provided with blower fan system in the cabinet, it is characterised in that: the blower fan system includes the one or three be arranged in parallel First blower and the second ternary blower offer spaced apart first air inlet hole and on left and right direction on the smoke-collecting plate Two air inlet holes, the smoke-collecting plate top is provided with the first turnover panel that can movably open or close the first air inlet hole, and can move The second turnover panel of the second air inlet hole is opened or closed dynamicly.
Preferably, it is to reduce turnover panel the space occupied, and avoids interfering with each other when moving, first turnover panel and the Two turnover panels are opposite on left and right direction or opposite liftoff movement, first turnover panel and the second turnover panel are towards on smoke-collecting plate Side is gone to upper and lower staggeredly when intermediate mobile.
Preferably, the movement of turnover panel is guided by sliding slot, is provided with above the smoke-collecting plate for guiding the first turnover panel The mobile guiding mechanism with the second turnover panel, the guiding mechanism include leading in the front and rear sides respectively arranged first of smoke-collecting plate Rail and the second guide rail, first guide rail and the second guide rail extend to right side on the left of smoke-collecting plate respectively;First guide rail With the first sliding groove and second sliding slot upwardly extended in left and right side is offered on the second guide rail, two first sliding grooves are mutually opposite Centre is answered and extends on the left of smoke-collecting plate respectively, two second sliding slots are in correspondence with each other and respectively from the right side of smoke-collecting plate Side extends to centre, and the front and rear ends of first turnover panel are slidably matched with first sliding groove respectively, before second turnover panel, Both ends are slidably matched with second sliding slot respectively afterwards, two sliding slots it is least partially overlapped in the centre of smoke-collecting plate and be overlapped portion Divide and goes to upper and lower interlaced arrangement.
To realize automatically moving for the first turnover panel, first guide rail is located at the rear side of smoke-collecting plate, second guide rail position Rear side above the front side of smoke-collecting plate, the smoke-collecting plate is additionally provided with the first driving machine for driving the first turnover panel mobile Structure;The front and rear ends of first turnover panel are respectively arranged with the first pulley being slidably matched with first sliding groove, first driving The rear side of the first guide rail is arranged in mechanism, and thus first driving mechanism and the first turnover panel are separately positioned on the two of the first guide rail Side, one of first pulley and the output end of the first driving mechanism of the rear end setting of first turnover panel are across corresponding the One sliding slot and connect.
Preferably, to avoid two turnover panel interference when being moved to centre, each first sliding groove includes being located at a smoke-collecting plate left side First extension of side, the second extension among smoke-collecting plate, second extension is from the right part of the first extension Extend to the right and formed after tilting upward bending, thus the height of the second extension is higher than the height of the first extension and second sliding slot Degree.
It preferably, is the lifting when being moved to centre convenient for the first turnover panel, the rear end setting of first turnover panel is wherein One first pulley is rotatablely connected by connecting rod and the output end of the first driving mechanism.
To realize automatically moving for the second turnover panel, first guide rail is located at the rear side of smoke-collecting plate, second guide rail position Front side above the front side of smoke-collecting plate, the smoke-collecting plate is additionally provided with the second driving machine for driving the second turnover panel mobile Structure;The front and rear ends of second turnover panel are respectively arranged with the second pulley being slidably matched with second sliding slot, second driving The front side of the second guide rail is arranged in mechanism, and thus second driving mechanism and the second turnover panel are separately positioned on the two of the second guide rail Side, one of second pulley and the output end of the second driving mechanism of the front end setting of second turnover panel are across corresponding the Two sliding slots and connect.
On the basis of not changing Cabinet Size, to increase air quantity, the first ternary blower includes the first 3 d impeller With the first air inlet, the second ternary blower includes the second 3 d impeller and the second air inlet, on oil smoke flow path, institute It states the second air inlet to be equal with the first air inlet position, first air inlet and the second air inlet are set side by side and distinguish Towards the arranged on left and right sides of cabinet.
Preferably, to reduce windage under the premise of not increasing Cabinet Size, smoke absorption effect, first ternary are improved First 3 d impeller of blower, the second ternary blower the second 3 d impeller respectively from the horizontal by 60 °~90 °, and And two 3 d impellers tilt in the opposite direction.
According to an aspect of the present invention, the first ternary blower further includes the first spiral case, first 3 d impeller It is arranged in the first spiral case, the second ternary blower further includes the second spiral case, and second 3 d impeller is arranged in the second snail In shell, first spiral case and the second spiral case interval are arranged side by side, and first air inlet is formed on the first spiral case, institute It states the second air inlet to be formed on the second spiral case, the first oil smoke channel is formed in first spiral case, first oil smoke is logical The top in road forms the first air outlet, is formed with the second oil smoke channel, the top in second oil smoke channel in second spiral case End forms the second air outlet.
According to another aspect of the present invention, the first 3 d impeller and the second 3 d impeller be spaced in the same spiral case, It is arranged side by side, the first air inlet corresponding with the first 3 d impeller, the second air inlet corresponding with the second 3 d impeller The opposite two sides of spiral case are respectively formed at, are provided with mounting plate between first 3 d impeller and the second 3 d impeller, it is described Mounting plate extends to the top of spiral case, so that two independent first oil smoke channels will be separated into and the second oil smoke leads in spiral case Road, the top in first oil smoke channel form the first air outlet, and the top in second oil smoke channel forms the second air outlet.
For convenient for simultaneously drive two impellers, further include the drive being arranged between the first 3 d impeller and the second 3 d impeller Dynamic motor, the driving motor have the double output shaft for being respectively used to driving the first 3 d impeller and the second 3 d impeller.
Gas accordingly to export to two ternary blowers plays guide functions, is conducive to exit gas and forms laminar flow, from And flow losses are greatly lowered, it improves efficiency, outlet housing, the outlet housing packet is provided at the air outlet of the blower fan system The cover in hollow tube-shape is included, the cover has the first end and second end of opposite opening, and the bore of the first end is big In being provided with the first deflector and the second deflector in the bore of second end, the cover, each deflector from cover first It holds to second end and extends, form the first diffusion runner, second water conservancy diversion between first deflector and the inner sidewall of cover The second diffusion runner, the section integral of the first diffusion runner and the second diffusion runner are formed between plate and the inner sidewall of cover Be not gradually reduced by the first end of cover to second end, the first diffusion runner at the first end of cover with the first ternary wind First air outlet of machine is corresponding, the second diffusion runner at the first end of cover with the second air outlet of the second ternary blower It is corresponding.
Compared with the prior art, the advantages of the present invention are as follows: by the mobile turnover panel of setting, to open or close air inlet Hole can make two air inlet holes all for respective burner on kitchen range, make full use of negative pressuren zone to concentrate guiding respectively, be promoted and inhaled Oil smoke effect;And two air inlet holes can be adjusted according to hearth service condition, accomplish precisely straight inhale;Can be hidden when closing compared with The strainer and blower fan system of greasy dirt, effectively prevent the taint of odour of oil smoke, while range hood being made to seem neat and tidy, easy to clean, It improves significantly to air in kitchen environment;And the move mode of turnover panel, reduce installation space;By using two Ternary blower, blower fan structure is compact, and size is relatively small, and fan efficiency and wind pressure are high, and the suction gradient of generation is big, can to inhale Cigarette efficiency is significantly promoted;The form of this parallel connection two fans vertical display, can make the most strong negative pressuren zone of blower fan system just To the air-flow that the left and right sides enters, and the air-flow that double air intake passages on smoke-collecting plate can make lower section enter is negative from the left and right sides It presses strongest region to enter blower fan system, reduces the escapement ratio of oil smoke.
Detailed description of the invention
Fig. 1 is the air inlet hole opening state schematic diagram of the range hood of the embodiment of the present invention;
Fig. 2 is the cross-sectional view of the range hood of Fig. 1;
Fig. 3 is the partial schematic diagram of the range hood of Fig. 1;
Fig. 4 is the decomposition texture schematic diagram of Fig. 3;
Fig. 5 is the air inlet hole closed mode schematic diagram of the range hood of the embodiment of the present invention;
Fig. 6 is the partial schematic diagram of the range hood of Fig. 5;
Fig. 7 is the blower fan system of range hood of the invention and the cross-sectional view of outlet housing one embodiment;
Fig. 8 is the schematic diagram of the outlet housing of the range hood of Fig. 1;
Fig. 9 is the schematic diagram of second embodiment of blower fan system and outlet housing of range hood of the invention;
Figure 10 is the blower fan system of the range hood of Fig. 9 and the cross-sectional view of outlet housing.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Embodiment one
Referring to FIG. 1 to FIG. 6, a kind of range hood, cabinet 2 and setting including exhaust fume collecting hood 1, above exhaust fume collecting hood 1 Blower fan system 4 in cabinet 2.Hereinafter, for ease of description, "front", "rear", "left", "right", "upper", "lower" refer to oil suction With respect to the orientation of user when smoke machine uses, but the restriction to technical solution is not constituted.
Exhaust fume collecting hood 1 includes inner can 11 and outer casing 12, and inner can 11 includes multiple side plates 111 and is arranged in side plate 111 The top plate 112 at top, side plate 111 and top plate 112 collectively form the smoke collecting chamber 13 being recessed upwards, and the shape of smoke collecting chamber 13 is unlimited, If top plate 12 can be in the inclination of horizontal or relative level, so that smoke collecting chamber 13 is T-shaped or tower-shaped etc..Each top plate 112 is mutually It is constituted between close inner end and enters the air inlet 14 in cabinet 2 from smoke collecting chamber 13 for oil smoke, it is interior at the top of outer casing 12 End, inner can 11 the inner end of top plate 112 be connected to the bottom end of cabinet 2.
Air duct 25 is formed in cabinet 2, the entrance in air duct 25 is arranged in strainer 26.In the present embodiment, strainer 26 is adopted With grid-like flat strainer, alternatively, strainer 26 or rotary sieve, the reversion strainer being recessed upwards etc..
1 bottom of exhaust fume collecting hood is provided with smoke-collecting plate 3, and each side plate 111 of the inner can 11 of exhaust fume collecting hood 1 is arranged in smoke-collecting plate 3 Between bottom, positioned at the bottom of smoke collecting chamber 13.Exhaust fume collecting hood 1 and smoke-collecting plate 3 can be integrally formed.
Blower fan system 4 in cabinet 2 uses ternary blower, the prior art can be used, as the applicant application No. is Blower fan structure disclosed in 201620102790.9 patent, the air outlet of blower fan system 4 are provided with outlet housing 5, and being used for will The oil smoke discharge that blower fan system 4 is discharged is to wind pipe.The specific structure of blower fan system 4 will be explained below.
The first air inlet hole 31 and the second air inlet hole 32 are offered on smoke-collecting plate 3, two air inlet holes are spaced on left and right direction Arrangement, so that each air inlet hole is corresponding with one of kitchen range of kitchen range.The suction common relative to tradition of this double air intake passages Kitchen ventilator, runner Relatively centralized, rationally, reduce path of the smoke machine noise source to external radiation, therefore noise is lower, usage experience More preferably.Oil smoke can be entered in smoke collecting chamber 13 by each air inlet hole, and pass through the air inlet 14 among top plate 112 from smoke collecting chamber 13 It enters in cabinet 2, and the blower fan system 4 by being arranged in cabinet 2 is discharged into outside cabinet 2.
Spacing between two air inlet hole centers can select to design according to kitchen range center carpenters square little progress row.And each air inlet The shape in hole can there are many selections, such as round, oval, rectangular or other any irregular abnormity.
It can be by that can be turned over by setting second at the first turnover panel 81 of setting, the second air inlet hole 31 at first air inlet hole 31 Plate 82, thus to open and close the first air inlet hole 31, the second air inlet hole 32.In the present embodiment, the first turnover panel 81 and second Turnover panel 82 can be with independent control, and energy is mobile relative to the center of smoke-collecting plate 3, thus independently to open and close corresponding air inlet Hole.Position inside smoke collecting chamber 13, above smoke-collecting plate 3 is provided with the first driving for driving the first turnover panel 81 mobile Mechanism 83, the second driving mechanism 85 for driving the second turnover panel 82 mobile and guiding mechanism 84.Preferably, the first driving Mechanism 83 is identical with the structure of the second driving mechanism 85.To collect convenient for fixation, above-mentioned each driving mechanism and guiding mechanism setting On the upper surface of cigarette plate 3.
The rear side of smoke-collecting plate 3 is arranged in first driving mechanism 83, and the front side of smoke-collecting plate 3 is arranged in the second driving mechanism 85. Or, or, the front side of smoke-collecting plate 3 is arranged in the first driving mechanism 83, and smoke-collecting plate 3 is arranged in the second driving mechanism 85 Front side.Wherein, the first driving mechanism 83 and the second driving mechanism 85 preferably can also alternatively be adopted using electric pushrod Load can be pushed to make the mechanism of straight reciprocating motion with other.
Guiding mechanism 84 includes the first guide rail 841 and the second guide rail 842, wherein after the first guide rail 841 is located at smoke-collecting plate 3 Side, and the second guide rail 842 is located at the front side of smoke-collecting plate 3, the first guide rail 841 and the second guide rail 842 prolong on the left of smoke-collecting plate 3 respectively Reach the right side of smoke-collecting plate 3.
Offer the first sliding groove 843 upwardly extended in left and right side on first guide rail 841 and the second guide rail 842, two In correspondence with each other, each first sliding groove 843 extends to the centre of smoke-collecting plate 3 from the left side of smoke-collecting plate 3 to first sliding groove 843.First leads The second sliding slot 844 upwardly extended in left and right side, two second sliding slots 844 are also offered on rail 841 and the second guide rail 842 In correspondence with each other, each second sliding slot 844 extends to the centre of smoke-collecting plate 3 from the right side of smoke-collecting plate 3.The first sliding groove of every side 843 and second sliding slot 844 it is least partially overlapped in the centre of smoke-collecting plate 3, and be overlapped part go to upper and lower arrangement.
First turnover panel 81 is between the first guide rail 841 and the second guide rail 842, and the front and rear ends of the first turnover panel 81 First pulley 845 is respectively arranged with for being slidably matched with first sliding groove 843.In the present embodiment, the first turnover panel 81 is forward and backward Both ends are respectively arranged with spaced apart two first pulleys 845.For the movement for avoiding interference with the first turnover panel 81, the first driving machine The rear side of the first guide rail 841 is arranged in structure 83, i.e. the first driving mechanism 83 and the first turnover panel 81 are separately positioned on the first guide rail 841 Two sides, therefore, first sliding groove 843 on the first guide rail 841 is through slot.
The part of each first sliding groove 843 is Chong Die with the first air inlet hole 31, so that the first turnover panel 81 can be completely covered One air inlet hole 31.Each first sliding groove 843 includes the first extension 8431 on the left of 3 upper surface of smoke-collecting plate, is located at collection cigarette The second extension 8432 among 3 upper surface of plate, wherein the right part of the first extension 8431 exceeds the right side of the first air inlet hole 31 Side end is at least flushed with the right-hand end of the first air inlet hole 31.Right end of second extension 8432 from the first extension 8431 Portion extends to the right and is formed after tilting upward bending, and thus the height of the second extension 8432 is higher than the height of the first extension 8431 Degree.And second sliding slot 844 can extend horizontally always, and it is corresponding to the height of the first extension 8431, therefore, in first sliding groove 843 and second sliding slot 844 lap, second sliding slot 844 is located at the lower section of the second extension 8432 of first sliding groove 843. Alternatively, or the shape of first sliding groove 843 and second sliding slot 844 is exchanged, i.e., first sliding groove 843 always prolong by level It stretches, and second sliding slot 844 has horizontal-extending part and is folded upward at the part of extension.
Second turnover panel 82 is between the first guide rail 841 and the second guide rail 842, and the front and rear ends of the second turnover panel 82 Second pulley 846 is respectively arranged with for being slidably matched with second sliding slot 844.In the present embodiment, the second turnover panel 82 is forward and backward Both ends are respectively arranged with spaced apart two second pulleys 846.For the movement for avoiding interference with the second turnover panel 82, the second driving machine The front side of the second guide rail 842 is arranged in structure 85, i.e. the second driving mechanism 85 and the second turnover panel 82 are separately positioned on the second guide rail 842 Two sides, therefore, second sliding slot 844 on the second guide rail 842 is through slot.
The part of second sliding slot 844 on second guide rail 842 is Chong Die with the second air inlet hole 32, so that the second turnover panel 82 can be with The second air inlet hole 32 is completely covered.The height of second sliding slot 844 can be with the height of the first extension 8431 of first sliding groove 843 It is identical.
One of first pulley 845 of the rear end setting of first turnover panel 81 passes through connecting rod 86 and the first driving mechanism 83 Output end rotation connection, so that the first turnover panel 81 can also have the movement being lifted upwards while mobile.Before second turnover panel 82 One of second pulley 846 of end setting is connect with the output end of the second driving mechanism 85.
When range hood work, the first driving mechanism 83 and the starting operating of the second driving mechanism 85 will be covered on first The first turnover panel 81 at air inlet hole 31, the second turnover panel 82 being covered at the second air inlet hole 32 are opposite to each other respectively to smoke-collecting plate 3 Centre is mobile.Due to having the second extension 8432 being lifted upwards in first sliding groove 843, the first turnover panel 81 is in movement It when to the second extension 8432, can be lifted to be staggered with the second turnover panel 82 upwards, until two turnover panels are all moved to collection cigarette The centre of plate 3, without having Chong Die part with respective air inlet hole, the first air inlet hole 31 and the second air inlet hole 32 are beaten completely It opens, referring to Fig. 1 and Fig. 3.Or can also be according to culinary art the case where, only drive one of turnover panel to act.
When range hood is closed, the first driving mechanism 83 and the starting operating of the second driving mechanism 85, by intermediate first Turnover panel 81, the second turnover panel 82 are covered each by respectively respectively to the liftoff movement opposite to each other of the arranged on left and right sides of smoke-collecting plate 3 until being moved to Corresponding first air inlet hole 31 and the second air inlet hole 32, close entire smoke-collecting plate 3, are integrally formed, referring to figs. 5 and 6.Thus may be used The strainer and blower fan system compared with greasy dirt are hidden, the taint of odour of oil smoke is effectively prevent, while range hood being made to seem neat and tidy, it is convenient clear It washes, improves significantly to air in kitchen environment.
The move mode of above-mentioned this turnover panel, reduces installation space, can make two air inlet holes respectively all for stove Respective burner on tool makes full use of negative pressuren zone to concentrate guiding, promotes smoke absorption effect;And two air inlet holes can be according to stove Platform service condition is adjusted, and accomplishes precisely straight inhale.
Referring to fig. 2, Fig. 7 and Fig. 8, in the present embodiment, it is preferred that blower fan system 4 include two can independent operation the One ternary blower 41 and the second ternary blower 42, two ternary fan parallel-connection settings.By using 3 d impeller, compared to centrifugation Flow efficiency can be significantly increased in blower, improve air quantity.
The first 3 d impeller 412 that first ternary blower 41 spiral case 411 and be arranged in the first spiral case 411 including first, The second 3 d impeller 422 that second ternary blower 42 spiral case 421 and be arranged in the second spiral case 421 including second.First spiral case 411 and second spiral case 421 side by side, compartment of terrain arrangement, be formed with the first air inlet 413, the second spiral case 421 on the first spiral case 411 On be formed with the second air inlet 423, away from each other, i.e. the air inlet 313 of the first spiral case 411 is formed in the air inlet of two spiral cases Side far from the second spiral case 421, two back-to-back settings of spiral case, so that two ternary blowers are arranged side by side in left and right, and First air inlet 413 is towards the left side of cabinet 2, the second air inlet 423 towards the right side of cabinet 2.Oil smoke enters from exhaust fume collecting hood 1 When, it is entered in blower fan system 4 from arranged on left and right sides respectively.The first oil smoke channel 441, the first oil smoke are formed in first spiral case 411 The top in channel 441 forms the first air outlet 414, forms the second oil smoke channel 442, the second oil smoke channel in the second spiral case 421 442 tops form the second air outlet 424, the first air outlet 414 and the second air outlet 424 side by side, compartment of terrain arrangement.
The prior art can be used in first 3 d impeller 412 and the second 3 d impeller 422, as the applicant application No. is 201620102790.9 patent disclosed in structure.First 3 d impeller 412 and the second 3 d impeller 422 share same Driving motor 43, driving motor 43 are arranged between the first spiral case 411 and the second spiral case 421, and driving motor 43 has dual output Axis, the output shaft 431 thus extended to the left can connect with the first 3 d impeller 412 and the first 3 d impeller 412 driven to operate, to The output shaft 431 of right extension can connect with the second 3 d impeller 422 and the second 3 d impeller 422 is driven to operate.Thus it may make Two ternary blowers have preferable synchronism, while again can be energy saving.
First 3 d impeller 412 and the second 3 d impeller 422 can be respectively from the horizontal by 60 °~90 °, two impellers (the first 3 d impeller 412 is tilted to the left, and the second 3 d impeller 422 is tilted to the right) is tilted in the opposite direction, it is possible thereby to Reduce windage, improves smoke absorption effect.The center of first 3 d impeller 412 and 25 entrance of air duct of range hood keep certain Distance, the distance are 1~2 times of diameter of the first 3 d impeller 412, the center of the second 3 d impeller 422 and range hood 25 entrance of air duct maintains a certain distance, which is 1~2 times of the diameter of the second 3 d impeller 422, impeller center and air duct The distance of 25 entrances has to be larger than impeller diameter, and the strainer 26 of such 25 inlet of air duct can just play a role, but can not be big In 2 times of diameters, otherwise apart from negative pressure region apart from too far.
Above-mentioned two ternary blower can use same structure, and this arrangement, blower fan system overall volume It is smaller, the original size of cabinet 2 can not changed, air quantity can made double again in the case where keeping higher wind pressure, improved and inhale Oil smoke efficiency.Two air inlets are respectively facing arranged on left and right sides, so that the negative pressure region area of two side peripheries increases, are suitable for two A kitchen range achievees the effect that not run cigarette;Noise transmission path makes towards arranged on left and right sides rather than direction in the prior art User thus reduces noise.
The top of blower fan system 4 is provided with outlet housing 5, and the cover 51 of outlet housing 5 covers the first of the first ternary blower 41 It first air outlet 414 of spiral case 411, the second air outlet 424 of the second spiral case 421 of the second ternary blower 42 and is connected to. In the present embodiment, outlet housing 5 includes cover 51, the deflector being arranged in cover 51.Cover 51 is in hollow tubular, and Opposite first end 511 (lower end) and second end 512 (upper end) opening, the bore of first end 511 are greater than the mouth of second end 512 Diameter is open and is gradually reduced from the position close to blower fan system 4 to far from the position of blower fan system 4, oil smoke air-flow is from first end 511 enter in cover 51, and leave cover 51 from second end 512 and enter the external pipe connecting with outlet housing 5.
Deflector includes the first deflector 521 and the second deflector 522, first end of first deflector 521 from cover 51 511 extend to second end 512, and the first deflector 521 is at the first end 511 of cover 51, with the first ternary blower 41 First edge of the second air outlet 424 close to the second ternary blower 42 at the first air outlet 414 be 415 (the first air outlet Right edge) corresponding, second air outlet of second deflector 522 at the first end 511 of cover 51, with the second ternary blower 42 Second edge 425 (left side edge of the second air outlet) of the first air outlet 414 close to the first ternary blower 41 at 424 is right It answers.Each deflector has the width extended in front and rear direction.First deflector 521 by first end 511 to second end 512, Be increasingly towards the second deflector 522 (to the right) inclination, the second deflector 522 by first end 511 to second end 512, be increasingly towards First deflector 521 tilts (to the left), i.e., each deflector deviates intermediate position into 51 top of cover from 51 bottom of cover Between position extend.First deflector 521 is mutually connected with the top (close to the second end 512 of cover 51) of the second deflector 522 It connects, it is preferred that the junction of two deflectors is in rounding off, to guide air-flow smooth transition.
The front and rear sides side 5211,5212 of first deflector 521 is connect with the inner sidewall of cover 51 always, the second water conservancy diversion The front and rear sides side 5221,5222 of plate 522 is connect with the inner sidewall of cover 51 always.Thus cover 51 is divided into cover 51 The first diffusion runner 531,51 inner sidewall of cover between inner sidewall and the first deflector 521 and between the second deflector 522 Second diffusion runner 532, the first diffusion runner 531 and the second diffusion runner 532 are independent mutually.First diffusion runner 531 is in cover It is corresponding with the first air outlet 414 of the first ternary blower 41 at the first end 511 of body 51, that is, the first air outlet 414 is completely covered, Second diffusion runner 532 is corresponding with the second air outlet 424 of the second ternary blower 42 at the first end 511 of cover 51, i.e., complete The second air outlet of all standing 424.The sectional area of first diffusion runner 531 is gradually reduced by first end 511 to second end 512, the The sectional area first end 511 of two diffusion runners 532 to second end 512 is gradually reduced, as a result, at the top of the first diffusion runner 531 Muzzle velocity is greater than the muzzle velocity of 531 bottom of the first diffusion runner, and the muzzle velocity at the top of the second diffusion runner 532 is greater than the The muzzle velocity of two diffusion runners, 532 bottom.
By the way that above-mentioned deflector is arranged, so that be connected to the first air outlet 414 of the first ternary blower 41 first expands The air velocity of runner 531, the second diffusion runner 42 being connected to the second air outlet 424 of the second ternary blower 42 is pressed to connect each other Closely.This guide functions of outlet housing 5 are conducive to exit gas and form laminar flow, enter external pipe after forming laminar flow, avoid Air-flow is directly entered with turbulent condition the defect of external pipe after coming out from spiral case, also avoid the air outlet of two ternary blowers Strong friction and shock when air-flow mixes improves efficiency so that flow losses be greatly lowered.
It is densely covered with sound-absorbing hole 54 on first deflector 521 and/or the second deflector 522, advantageously reduces outlet noise.For Further decrease noise, can also space between the first deflector 521 and the second deflector 522 partition 55 is set so that Space between first deflector 521 and the second deflector 522 is divided at least two resonant cavities 551.Alternatively, can also be Acoustical cotton is arranged in space between first deflector 521 and the second deflector 522.Alternatively, partition can also be replaced with reinforcing rib 55, to enhance the intensity of deflector.
The form of above-mentioned this two fans vertical display in parallel, can make the most strong negative pressuren zone face of blower fan system 4 left The air-flow that right two sides enter, and double air intake passages on smoke-collecting plate 3 can make the air-flow of lower section entrance from left and right sides negative pressure Strongest region enters blower fan system 4, reduces the escapement ratio of oil smoke.
Embodiment two
Referring to Fig. 9 and Figure 10, in the present embodiment, with above-described embodiment one the difference is that, the first ternary blower 41 and second ternary blower 42 share the same spiral case 44, i.e. the first 3 d impeller 412 and the two or three of the first ternary blower 41 Second 3 d impeller 422 of first blower 42 is co-located in the same spiral case 44.
It is provided with mounting plate 45 between two 3 d impellers, to separating two 3 d impellers the two of mounting plate 45 Side, mounting plate 45 extend to the top of spiral case 44, so that two 441 Hes of independent first oil smoke channel will be separated into spiral case 44 Second oil smoke channel 442.Driving motor 43 is passed through from mounting plate 45 and is connected and fixed with mounting plate 45.
In the present embodiment, outlet housing 5 is only including cover 51 and the deflector 56 being arranged in cover 51, deflector 56 Extend on the flow direction of oil smoke, in the present embodiment, to extend in the longitudinal direction, position and 45 phase of mounting plate of deflector 56 It is corresponding, so that cover 51 is divided into independent first diffusion runner 531 corresponding with the oil smoke channel in spiral case 44 and the Two diffusion runners 532.
Alternatively, outlet housing 5 can also use the structure of embodiment one.

Claims (13)

1. a kind of range hood, including exhaust fume collecting hood (1) and the cabinet (2) being arranged above exhaust fume collecting hood (1), the exhaust fume collecting hood (1) It is inside formed with the smoke collecting chamber (13) being recessed upwards, the bottom of the smoke collecting chamber (13) is provided with smoke-collecting plate (3), the cabinet (2) Inside it is provided with blower fan system (4), it is characterised in that: the blower fan system (4) includes the first ternary blower (41) being arranged in parallel With the second ternary blower (42), spaced apart first air inlet hole (31) on left and right direction is offered on the smoke-collecting plate (3) With the second air inlet hole (32), the of the first air inlet hole (31) can movably be opened or closed by being provided with above the smoke-collecting plate (3) One turnover panel (81), and can movably open or close the second turnover panel (82) of the second air inlet hole (32).
2. range hood according to claim 1, it is characterised in that: first turnover panel (81) and the second turnover panel (82) exist Opposite or opposite liftoff movement, first turnover panel (81) and the second turnover panel (82) are towards smoke-collecting plate (3) on left and right direction It is gone to upper and lower staggeredly when mobile among top.
3. range hood according to claim 2, it is characterised in that: be provided with above the smoke-collecting plate (3) for guiding The guiding mechanism (84) of first turnover panel (81) and the second turnover panel (82) movement, the guiding mechanism (84) are included in smoke-collecting plate (3) Respectively arranged first guide rail (841) of front and rear sides and the second guide rail (842), first guide rail (841) and the second guide rail (842) right side is extended on the left of smoke-collecting plate (3) respectively;It is opened up on first guide rail (841) and the second guide rail (842) Have a first sliding groove (843) and second sliding slot (844) upwardly extended in left and right side, two first sliding grooves (843) in correspondence with each other, And centre is extended on the left of smoke-collecting plate (3) respectively, two second sliding slots (844) are in correspondence with each other and respectively from collection cigarette Centre is extended on the right side of plate (3), the front and rear ends of first turnover panel (81) are slidably matched with first sliding groove (843) respectively, The front and rear ends of second turnover panel (82) are slidably matched with second sliding slot (844) respectively, and two sliding slots are in smoke-collecting plate (3) Part that is intermediate least partially overlapped and being overlapped goes to upper and lower interlaced arrangement.
4. range hood according to claim 3, it is characterised in that: first guide rail (841) is located at smoke-collecting plate (3) Rear side, second guide rail (842) are located at the front side of smoke-collecting plate (3), and the rear side above the smoke-collecting plate (3), which is additionally provided with, to be used for The first driving mechanism (83) for driving the first turnover panel (81) mobile;The front and rear ends of first turnover panel (81) are respectively arranged with The first pulley (845) being slidably matched with first sliding groove (843), first driving mechanism (83) are arranged in the first guide rail (841) rear side, thus first driving mechanism (83) and the first turnover panel (81) are separately positioned on the two of the first guide rail (841) Side, one of first pulley (845) of the rear end setting of first turnover panel (81) and the output of the first driving mechanism (83) End is connected across corresponding first sliding groove (843).
5. range hood according to claim 4, it is characterised in that: each first sliding groove (843) includes being located at smoke-collecting plate (3) the first extension (8431) on the left of, second extension (8432) intermediate positioned at smoke-collecting plate (3), second extension (8432) extend to the right after tilting upward bending from the right part of the first extension (8431) and formed, thus the second extension (8432) height is higher than the height of the first extension (8431) and second sliding slot (844).
6. range hood according to claim 5, it is characterised in that: the rear end setting of first turnover panel (81) is wherein One first pulley (845) is rotatablely connected by the output end of connecting rod (86) and the first driving mechanism (83).
7. range hood according to claim 3, it is characterised in that: first guide rail (841) is located at smoke-collecting plate (3) Rear side, second guide rail (842) are located at the front side of smoke-collecting plate (3), and the front side above the smoke-collecting plate (3), which is additionally provided with, to be used for The second driving mechanism (85) for driving the second turnover panel (82) mobile;The front and rear ends of second turnover panel (82) are respectively arranged with The second pulley (846) being slidably matched with second sliding slot (844), second driving mechanism (85) are arranged in the second guide rail (842) front side, thus second driving mechanism (85) and the second turnover panel (82) are separately positioned on the two of the second guide rail (842) Side, one of second pulley (846) of the front end setting of second turnover panel (82) and the output of the second driving mechanism (85) End is connected across corresponding second sliding slot (844).
8. range hood according to claim 1, it is characterised in that: the first ternary blower (41) includes the first ternary Impeller (412) and the first air inlet (413), the second ternary blower (42) include the second 3 d impeller (422) and second into Air port (423), on oil smoke flow path, second air inlet (413) is equal with the first air inlet (413) position, described First air inlet (413) and the second air inlet (413) are set side by side and are respectively facing the arranged on left and right sides of cabinet (2).
9. range hood according to claim 8, it is characterised in that: the first ternary leaf of the first ternary blower (41) Take turns (412), the second ternary blower (42) the second 3 d impeller (422) respectively from the horizontal by 60 °~90 °, and Two 3 d impellers tilt in the opposite direction.
10. range hood according to claim 8, it is characterised in that: the first ternary blower (41) further includes first Spiral case (411), in the first spiral case (411), the second ternary blower (42) is also wrapped for the first 3 d impeller (412) setting It includes the second spiral case (421), the second 3 d impeller (422) setting is in the second spiral case (421), first spiral case (411) It is spaced, is arranged side by side with the second spiral case (421), first air inlet (413) is formed on the first spiral case (411), described Second air inlet (423) is formed on the second spiral case (421), is formed with the first oil smoke channel in first spiral case (411) (441), the top of first oil smoke channel (441) forms the first air outlet (414), is formed in second spiral case (421) There is the second oil smoke channel (442), the top in second oil smoke channel (442) forms the second air outlet (424).
11. range hood according to claim 8, it is characterised in that: the first 3 d impeller (412) and the second 3 d impeller (422) it is spaced, is arranged side by side, the first air inlet corresponding with the first 3 d impeller (412) in the same spiral case (44) (413), the second air inlet (423) corresponding with the second 3 d impeller (422) is respectively formed at the opposite two sides of spiral case (44), It is provided with mounting plate (45) between first 3 d impeller (412) and the second 3 d impeller (422), the mounting plate (45) is prolonged The top of spiral case (44) is reached, so that two independent first oil smoke channels (441) and the second oil will be separated into spiral case (44) The top of cigarette channel (442), first oil smoke channel (441) forms the first air outlet (414), second oil smoke channel (442) top forms the second air outlet (424).
12. range hood described in 0 or 11 according to claim 1, it is characterised in that: further include being arranged in the first 3 d impeller (412) driving motor (43) between the second 3 d impeller (422), the driving motor (43), which has, is respectively used to driving the The double output shaft of one 3 d impeller (412) and the second 3 d impeller (422).
13. range hood described in 0 or 11 according to claim 1, it is characterised in that: at the air outlet of the blower fan system (4) Be provided with outlet housing (5), the outlet housing (5) includes the cover (51) in hollow tube-shape, the cover (51) have it is opposite, The first end (511) and second end (512) of opening, the bore of the first end (511) are greater than the bore of second end (512), institute State and be provided with the first deflector (521) and the second deflector (522) in cover (51), each deflector from cover (51) first It holds (511) to extend to second end (512), forms first between first deflector (521) and the inner sidewall of cover (51) and expand It presses runner (531), forms the second diffusion runner (532), institute between second deflector (522) and the inner sidewall of cover (51) The sectional area of the first diffusion runner (531) and the second diffusion runner (532) is stated respectively by the first end (511) of cover (51) to Two ends (512) are gradually reduced, the first diffusion runner (531) at the first end (511) of cover (51) with the first ternary wind The first air outlet (414) of machine (41) is corresponding, the second diffusion runner (532) at the first end (511) of cover (51) with The second air outlet (424) of second ternary blower (42) is corresponding.
CN201711107836.1A 2017-11-10 2017-11-10 Fume exhauster Active CN109780600B (en)

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CN109780600B CN109780600B (en) 2024-01-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114763916A (en) * 2021-01-11 2022-07-19 宁波方太厨具有限公司 Fume exhaust fan

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Publication number Priority date Publication date Assignee Title
EP2541154A1 (en) * 2011-06-30 2013-01-02 Miele & Cie. KG Extractor hood with a mobile vapour screen
CN204285563U (en) * 2014-11-19 2015-04-22 绍兴欧曼迪电器有限公司 A kind of inlet scoop automatic folding type integrated kitchen range
CN204329100U (en) * 2014-09-29 2015-05-13 博西华电器(江苏)有限公司 Range hood
CN205261692U (en) * 2015-12-28 2016-05-25 浙江苏泊尔家电制造有限公司 Range hood
CN106705156A (en) * 2015-11-17 2017-05-24 博西华电器(江苏)有限公司 Range hood

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2541154A1 (en) * 2011-06-30 2013-01-02 Miele & Cie. KG Extractor hood with a mobile vapour screen
CN204329100U (en) * 2014-09-29 2015-05-13 博西华电器(江苏)有限公司 Range hood
CN204285563U (en) * 2014-11-19 2015-04-22 绍兴欧曼迪电器有限公司 A kind of inlet scoop automatic folding type integrated kitchen range
CN106705156A (en) * 2015-11-17 2017-05-24 博西华电器(江苏)有限公司 Range hood
CN205261692U (en) * 2015-12-28 2016-05-25 浙江苏泊尔家电制造有限公司 Range hood

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114763916A (en) * 2021-01-11 2022-07-19 宁波方太厨具有限公司 Fume exhaust fan

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