CN105570158B - Range hood and its fan assembly - Google Patents
Range hood and its fan assembly Download PDFInfo
- Publication number
- CN105570158B CN105570158B CN201610092187.1A CN201610092187A CN105570158B CN 105570158 B CN105570158 B CN 105570158B CN 201610092187 A CN201610092187 A CN 201610092187A CN 105570158 B CN105570158 B CN 105570158B
- Authority
- CN
- China
- Prior art keywords
- radome fairing
- partition board
- spiral case
- chamber body
- range hood
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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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
Abstract
The present invention provides a kind of range hood and its fan assemblies.Wherein, the fan assembly of range hood includes the spiral case with left chamber body and right chamber body, be respectively received in left chamber body and the impeller in right chamber body, with the coaxially connected motor of impeller and the check-valves at volute outlet, the end of snail shell coiling molded line has the partition board extended to volute outlet direction, left chamber body and the right chamber body set up separately in partition board both sides, and are connected to form left air-out passage and right air-out passage with volute outlet respectively；Radome fairing is installed on partition board, along the end of snail shell coiling molded line to volute outlet direction, partition board is connected smoothly with radome fairing, and radome fairing horizontal width first gradually increase, after be gradually reduced so that radome fairing integrally be in fusiformis.The fan assembly of range hood provided by the invention reduces left side air-flow and right side gas flows converge at volute outlet and the pneumatic microseismic noise that generates under the premise of not reducing spiral case entirety guide performance.
Description
Technical field
The present invention relates to kitchen utensils fields, more specifically, are related to a kind of fan assembly of range hood and including should
The range hood of fan assembly.
Background technology
With the promotion of people's quality of the life, user is increasingly paid close attention to it using range hood and runs noise level, simultaneously
It is domestic also range hood operation noise management and control standard receive sternly；And current market sales of two fans range hood is general
The store-through problem big in noise, the reason is that two fans smoke machine or so motor speed is different and leads to left and right rotation speed of fan not
Together, and then left and right air-flow carries out friction when air outlet position converges and generates larger pneumatic microseismic noise.
For the big problem of above-mentioned noise, generally use improves the consistency of left and right motor speed at present, to reduce noise,
But the manufacturing process of current motor can only accomplish ± 30 turns of difference, cause noise reduction undesirable；Or using reduction motor
Rotating speed slows down the aerodynamic noise that brings of friction, but can substantially reduce compressor flow in this way, leads to the smoke discharging effect of range hood
Difference.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, the purpose of one aspect of the present invention is, a kind of effective fume-exhausting for reducing pneumatic microseismic noise is provided
The fan assembly of machine.
The purpose of another aspect of the present invention is, provides a kind of range hood including above-mentioned fan assembly.
To achieve the above object, the embodiment of one aspect of the present invention provides a kind of fan assembly of range hood,
Include spiral case with left chamber body and right chamber body, be respectively received in the left chamber body and the impeller in the right chamber body, with it is described
The coaxially connected motor of impeller and the check-valves at the volute outlet of the spiral case, the end of the snail shell coiling molded line
The partition board for having and extending to the volute outlet direction, the left chamber body and the right chamber body is held to set up separately in the partition board both sides,
And it is connected to form left air-out passage and right air-out passage with the volute outlet respectively；Wherein, it is equipped on the partition board whole
Stream cover, along the end of the snail shell coiling molded line to the volute outlet direction, the partition board is seamlessly transitted with the radome fairing
Connection, and the radome fairing horizontal width first gradually increase, after be gradually reduced so that the radome fairing integrally be in fusiformis.
The above embodiment of the present invention provide range hood fan assembly, by spiral case be equipped with separate left chamber body and
The partition board of right chamber body separates the left and right air-flow blown out in spiral case, reduces left and right air-flow to a certain extent and goes out in spiral case
Converge the noise that friction generates at mouthful；Installation is connected smoothly with partition board on partition board and entirety is in the rectification of fusiformis structure
Cover, such wheel rotation drive the air-flow in left chamber body and right chamber body to be flowed along internal chamber wall, the meeting when air-flow flows to radome fairing
Continue on radome fairing surface molded line it is smooth move ahead, since radome fairing is in integrally fusiformis, increase distance that air-flow flows through simultaneously
So that air-flow has one section of climbing distance, to make the flow velocity close to air-flow at radome fairing substantially reduce, i.e., so that left and right air-flow exists
Notable reduction of speed before converging, to significantly reduce left and right air-flow converge at volute outlet and the pneumatic microseismic noise that generates；
In other words, the fan assembly for the range hood that the above embodiment of the present invention provides, before not reducing spiral case entirety guide performance
It puts, i.e., in the case where not reducing motor and wheel speed in spiral case, reduces the outlet near the cavity centre position of left and right
Flow velocity, to reduce left and right air-flow converge at volute outlet and the pneumatic microseismic noise that generates, improve range hood
Quality.
In addition, the fan assembly for the range hood that the above embodiment of the present invention provides also has following additional technical feature：
According to one embodiment of present invention, there is the Drainage Section being successively smoothly connected, current stabilization on the radome fairing
Section and unhurried current section, one end of the Drainage Section is connected smoothly with the steady flow segment, the other end of the Drainage Section with it is described
Partition board is connected smoothly.
In above-described embodiment, Drainage Section and the partition board of radome fairing are connected smoothly, and such wheel rotation drives left chamber body
When being flowed along internal chamber wall with the air-flow in right chamber body, reduce gas shock, in the case where not changing the original flow velocity of air-flow, makes
Stream of bringing about the desired sensation reaches the steady flow segment of radome fairing, and air-flow can be divided into two parts in steady flow segment, and a part of air-flow continues to flow along steady flow segment,
And gradually reduction of speed flows to the unhurried current section of radome fairing, to make radome fairing flow slowly section air-flow compared to radome fairing Drainage Section gas
Stream, flow velocity is effectively reduced, to which flow velocity is significantly reduced when left and right air-flow being made to converge at volute outlet, to apparent
Reduce pneumatic microseismic noise, and another part air-flow is away from the direction of radome fairing then along the tangential direction of Drainage Section to flowing away, from
And compared with the spiral case inlet pressure of not radome fairing, the air-flow near spiral case median plane is disperseed, point of the kinetic energy at volute outlet
Cloth is evenly.
According to one embodiment of present invention, the spiral case has spiral case median plane, the left chamber body and the right chamber body
The interior motor is symmetrical about the spiral case median plane, and the partition board is located on the spiral case median plane, and the radome fairing closes
It is symmetrical in the spiral case median plane.
In above-described embodiment, the motor in left chamber body and right chamber body is symmetrical about spiral case median plane, so that being located at left chamber
Internal lobus sinister wheel and the lobus dexter wheel in right chamber body rotate in mutually opposite directions, and rectification using spiral case median plane as symmetry axis
Cover is symmetrical about spiral case median plane, to reduce the phase of the left side air-flow and the right side gas flows blown out by right chamber body that are blown out by left chamber body
Potential difference and speed difference, to reduce the pneumatic microseismic noise that left side air-flow and right side gas flows are generated when volute outlet converges.
According to one embodiment of present invention, the spiral case is equipped with the volute tongue set up separately in the radome fairing both sides, described
The inner surface of volute tongue is to the shortest distance L1 of the spiral case median plane, the maximum horizontal extent L2 of the radome fairing and the volute tongue
Inner surface be to the relationship between the shortest distance L3 of the outer surface of the radome fairing：L1=0.5L2+L3.
According to one embodiment of present invention, at the shortest distance away from the spiral case median plane on the inner surface of the volute tongue
Line with the maximum distance apart away from the spiral case median plane on the outer surface of the radome fairing is perpendicular to the spiral case median plane.
In above-described embodiment so that the plane where the shortest distance of the outer surface of the inner surface of volute tongue to radome fairing and snail
Shell median plane is vertical, in this way, when the shortest distance of the outer surface of the inner surface of air motion to volute tongue to radome fairing, air-flow quilt
Volute tongue wall flow is biased in volute tongue and radome fairing control, and as air-flow shuts off the expansion in face, and air-flow starts reduction of speed unhurried current, until
It is flowed at volute outlet along radome fairing, left side air-flow and right side gas flows converge at volute outlet, due to left side air-flow and the right side
Sidewind notable reduction of speed before converging, therefore significantly reduce that there are phase differences and speed with right side gas flows because of left side air-flow
Poor and generation pneumatic microseismic noise.
According to one embodiment of present invention, the shortest distance of the inner surface of the volute tongue to the outer surface of the radome fairing
L3 and the impeller are to the relationship between the shortest distance L4 of the spiral case median plane：1.2L4≤L3≤1.5L4.
In above-described embodiment, the shortest distance L3 of inner surface to the outer surface of radome fairing of volute tongue is more than in impeller to spiral case
The shortest distance L4 in heart face, so that when the air-flow in left chamber body and right chamber body flow through impeller to spiral case median plane most short distance
From rear, air-flow face of shutting off is gradually expanded, and to slowly reduce flow velocity when air-flow flows at volute outlet, reduces pneumatic pulsation and makes an uproar
Sound；And control 1.2L4≤L3≤1.5L4, to avoid L3 values it is excessive and cause the flow velocity at volute outlet it is too low, influence oil suction
The case where exhaust effect of smoke machine, occurs.
According to one embodiment of present invention, the radome fairing includes being separately mounted in the opposite plate face of the partition board two
Left radome fairing and right radome fairing；Wherein, the both ends of the left radome fairing with the partition board phase clasp joint, the right radome fairing
Both ends with the partition board phase clasp joint；Or, the both ends of the left radome fairing are interlockingly connected with the partition board, the right side is whole
The both ends of stream cover are interlockingly connected with the partition board；Or, the one end of the left radome fairing and the partition board phase clasp joint, the other end
Portion is interlockingly connected with the partition board, the one end of the right radome fairing and the partition board phase clasp joint, the other end and the partition board phase
Snapping.
According to one embodiment of present invention, plate face opposite with the partition board on the left radome fairing is equipped with the first hook
Socket part and/or the first engaging portion, the partition board are equipped with corresponding with first clasp joint portion and/or first engaging portion the
One mounting hole, the right radome fairing are equipped with the first avoid holes of evacuation first clasp joint portion and/or first engaging portion；
The plate face opposite with the partition board is equipped with second hook socket part and/or the second engaging portion on the right radome fairing, on the partition board
Equipped with the second mounting hole corresponding with the second hook socket part and/or second engaging portion, the left radome fairing is equipped with and keeps away
Allow the second avoid holes of the second hook socket part and/or second engaging portion.
According to one embodiment of present invention, the radome fairing is monolithic construction, and perforation is offered on the radome fairing
The installation of one end is stitched, and the width of the installation seam is adapted with the thickness of the partition board, described one end of the radome fairing
Portion is inserted into the partition board from the free end of the partition board, and is fixed by screws on the partition board.
According to one embodiment of present invention, the radome fairing includes being separately mounted in the opposite plate face of the partition board two
Left radome fairing and right radome fairing；Wherein, the left radome fairing and the opposite one end of the right radome fairing respectively with it is described every
Plate phase clasp joint is interlockingly connected, and left radome fairing the other end opposite with the right radome fairing is mutually clamped, and the left rectification
The evacuation gap for avoiding the partition board is formed between cover and the right radome fairing.
The embodiment of another aspect of the present invention provides a kind of range hood, including described in any of the above-described embodiment
The fan assembly of range hood, and the advantageous effect of the fan assembly with the range hood described in any of the above-described embodiment.
The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the decomposition texture schematic diagram of the fan assembly of range hood described in one embodiment of the invention；
Fig. 2 is the main structure diagram after section components assembly in fan assembly shown in Fig. 1；
Fig. 3 is the broken section structural schematic diagram of fan assembly shown in Fig. 2；
Fig. 4 is the portions the A enlarged structure schematic diagram of Fig. 3；
Fig. 5 is the dimensional structure diagram of spiral case coaming plate in fan assembly shown in Fig. 3；
Fig. 6 is the dimensional structure diagram of radome fairing in fan assembly shown in Fig. 3；
Fig. 7 is the dimensional structure diagram of radome fairing described in first embodiment of the invention；
Fig. 8 is the dimensional structure diagram of left radome fairing or right radome fairing described in second embodiment of the invention；
Fig. 9 is the dimensional structure diagram of left radome fairing or right radome fairing described in third embodiment of the invention；
Figure 10 is the dimensional structure diagram of left radome fairing or right radome fairing described in four embodiment of the invention；
Figure 11 is the dimensional structure diagram of radome fairing described in fifth embodiment of the invention；
Figure 12 is the dimensional structure diagram of radome fairing described in sixth embodiment of the invention；
Figure 13 is the assembling structure schematic diagram of radome fairing shown in Figure 12；
Figure 14 is the broken section structural schematic diagram of radome fairing shown in Figure 13.
Wherein, the correspondence in Fig. 1 to Figure 14 between reference numeral and component names is：
10 spiral cases, 101 volute outlets, the end of 102 snail shell coiling molded line, 103 left air-out passages, 104 right air-out passages,
105 spiral case median planes, 11 partition boards, 111 first mounting holes, 112 second mounting holes, 12 spiral case coaming plates, 21 lobus sinister wheels, 22 lobus dexter
Wheel, 31 left motors, 32 right motors, 40 check-valves, 50 radome fairings, 501 Drainage Sections, 502 steady flow segments, 503 unhurried current sections, 51 left rectifications
Cover, 511 first clasp joint portions, 512 second avoid holes, 513,514 first engaging portion, 515 first limiting sections, 516 grooves, 52 is right whole
Stream cover, 521 first avoid holes, 522 second hook socket parts, 523,524 second engaging portion, 525 second limiting sections, 526 convex closures, 53 peaces
Dress seam, 54 screw holes, 55 evacuation gaps, 61,62 volute tongues, 71 left Inlet Networks, 72 right Inlet Networks.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
By using other, different from implementing in a manner of described here, therefore, protection scope of the present invention is not by following public tool
The limitation of body embodiment.
The fan assembly and range hood of range hood according to some embodiments of the invention are described with reference to the accompanying drawings.
As depicted in figs. 1 and 2, the fan assembly of the range hood provided according to some embodiments of the invention, including have
The spiral case 10 of left chamber body and right chamber body, the lobus sinister wheel 21 being contained in left chamber body and the lobus dexter wheel 22 being contained in right chamber body, with
The coaxially connected left motor 31 of lobus sinister wheel 21 and the right motor 32 coaxially connected with lobus dexter wheel 22 and the spiral case mounted on spiral case 10
Export the check-valves 40 at 101.
Wherein, the end 102 of snail shell coiling molded line has the partition board 11 that extends to 101 direction of volute outlet, left chamber body with
Right chamber body sets up separately in 11 both sides of partition board, and is connected to form left air-out passage 103 and right air-out passage with volute outlet 101 respectively
104；
Radome fairing 50 is installed, along the end of snail shell coiling molded line 102 to 101 direction of volute outlet, partition board on partition board 11
11 are connected smoothly with radome fairing, and radome fairing 50 horizontal width first gradually increase, after be gradually reduced so that radome fairing 50
Whole is in fusiformis.
The fan assembly for the range hood that the above embodiment of the present invention provides separates left chamber body by being equipped on spiral case 10
With the partition board 11 of right chamber body, the left and right air-flow blown out in spiral case 10 is separated, left and right air-flow is reduced to a certain extent and exists
Converge the noise that friction generates at the outlet of spiral case 10 101；Installation is connected smoothly with partition board 11 on partition board 11 and entirety is in
The radome fairing 50 of fusiformis structure, such wheel rotation drive the air-flow in left chamber body and right chamber body to be flowed along internal chamber wall, work as gas
Stream will continue to that the surface molded line along radome fairing 50 is smooth to move ahead when flowing to radome fairing 50, be in fusiformis since radome fairing 50 is whole,
It increases the distance that air-flow flows through and air-flow is made to have one section of climbing distance, to keep the flow velocity close to air-flow at radome fairing 50 big
It is big to reduce, i.e., so that left and right air-flow notable reduction of speed before converging, 101 are exported to significantly reduce left and right air-flow in spiral case 10
Place converges and the pneumatic microseismic noise that generates；In other words, the fan assembly for the range hood that the above embodiment of the present invention provides,
Under the premise of not reducing the whole guide performance of spiral case 10, i.e., in the case where not reducing motor and wheel speed in spiral case 10, drop
Exit velocity near low left and right cavity centre position, to reduce left and right air-flow converge at the outlet of spiral case 10 101 and
The pneumatic microseismic noise generated, improves the quality of range hood.
As shown in Figure 1, the fan assembly of the range hood further includes：Mounted on lobus sinister wheel 21 air inlet it is left into
The right Inlet Network 72 of wind net 71 and air inlet mounted on lobus dexter wheel 22.
In one embodiment of the present of invention, as shown in Fig. 2, Fig. 3 and Fig. 6, there is the company of seamlessly transitting successively on radome fairing 50
Drainage Section 501, steady flow segment 502 and the unhurried current section 503 connect, one end and the steady flow segment 502 of Drainage Section 501 are connected smoothly, draw
The other end of stream section 501 is connected smoothly with partition board 11.
In above-described embodiment, Drainage Section 501 and the partition board 11 of radome fairing 50 are connected smoothly, and such wheel rotation drives
When air-flow in left chamber body and right chamber body is flowed along internal chamber wall, reduce gas shock, in the feelings for not changing the original flow velocity of air-flow
Under condition so that air-flow reaches the steady flow segment 502 of radome fairing 50, and air-flow can be divided into two parts in steady flow segment 502, a part of air-flow after
It is continuous to be flowed along steady flow segment 502, and gradually reduction of speed flows to the unhurried current section 503 of radome fairing 50, to make the unhurried current section 503 of radome fairing 50
Air-flow compared to radome fairing 50 Drainage Section 501 air-flow, flow velocity is effectively reduced, to make left and right air-flow go out in spiral case 10
Flow velocity is significantly reduced when converging at mouth 101, and to be substantially reduced pneumatic microseismic noise, and another part air-flow is then along drainage
The tangential direction of section 501 is flowed away to away from the direction of radome fairing 50, thus compared with 10 molded line of spiral case of no radome fairing 50, snail
Air-flow near 10 median plane of shell is disperseed, kinetic energy being more evenly distributed at the outlet of spiral case 10 101.
In one embodiment of the present of invention, as shown in Figures 2 and 3, spiral case 10 has spiral case median plane 105, left motor 31
Symmetrical about spiral case median plane 105 with right motor 32, partition board 11 is located on spiral case median plane 105, and radome fairing 50 is about in spiral case
Heart face 105 is symmetrical.
In above-described embodiment, left motor 31 and right motor 32 are symmetrical about spiral case median plane 105, so that being located at left chamber body
Interior lobus sinister wheel and the lobus dexter wheel in right chamber body are symmetry axis with spiral case median plane 105, are rotated in mutually opposite directions, and rectification
Cover 50 is symmetrical about spiral case median plane 105, to reduce the left side air-flow blown out by left chamber body and the right side gas blown out by right chamber body
The phase difference and speed difference of stream, to reduce left side air-flow and right side gas flows spiral case 10 outlet 101 converge when generate it is pneumatic
Microseismic noise.
In one embodiment of the present of invention, as shown in Figure 1, Figure 2 and Figure 3, spiral case 10, which is equipped with, to be set up separately in 50 liang of radome fairing
The volute tongue 61,62 of side, the inner surface of volute tongue 61,62 to the shortest distance L1 of spiral case median plane 105, the maximum horizontal of radome fairing 50
Width L2 and the inner surface of volute tongue 61,62 are to the relationship between the shortest distance L3 of the outer surface of radome fairing 50：L1=0.5L2
+L3。
Preferably, as shown in Fig. 2, on the inner surface of volute tongue 61,62 at the shortest distance away from spiral case median plane 105 and rectification
The line of the maximum distance apart away from spiral case median plane 105 is perpendicular to spiral case median plane 105 on the outer surface of cover 50.
In above-described embodiment so where the inner surface to the shortest distance of the outer surface of radome fairing 50 of volute tongue 61,62
Plane is vertical with spiral case median plane 105, in this way, when air motion to the inner surface of volute tongue 61,62 to the outer surface of radome fairing 50
The shortest distance when, air-flow by volute tongue 61,62 and radome fairing 50 control be biased to volute tongue 61,62 wall flows, and with air-flow cut
The expansion of stream interface, air-flow start reduction of speed unhurried current, until being flowed to along radome fairing 50 at the outlet of spiral case 10 101, left side air-flow and the right side
Sidewind converges at the outlet of spiral case 10 101, due to left side air-flow and right side gas flows before converging notable reduction of speed, it is bright
It is aobvious to reduce the pneumatic microseismic noise generated because left side air-flow and right side gas flows are there are phase difference and speed difference.
In one embodiment of the present of invention, as shown in Fig. 2, the inner surface of volute tongue 61,62 is to the outer surface of radome fairing 50
Shortest distance L3 and impeller are to the relationship between the shortest distance L4 of spiral case median plane 105：1.2L4≤L3≤1.5L4.
In above-described embodiment, the shortest distance L3 of inner surface to the outer surface of radome fairing 50 of volute tongue 61,62 is more than impeller
To the shortest distance L4 of spiral case median plane 105, so that when the air-flow in left chamber body and right chamber body flows through in impeller to spiral case
After the shortest distance in heart face 105, air-flow face of shutting off is gradually expanded, when being flowed at the outlet of spiral case 10 101 to slowly reduce air-flow
Flow velocity, reduce pneumatic microseismic noise；And 1.2L4≤L3≤1.5L4 is controlled, it is excessive and spiral case 10 is caused to go out to avoid L3 values
Flow velocity at mouthfuls 101 is too low, influences the case where exhaust effect of range hood occurs.
In first specific embodiment of the present invention, as shown in Fig. 3 to Fig. 7, radome fairing 50 includes being separately mounted to partition board
Left radome fairing 51 in 11 liang of opposite plate faces and right radome fairing 52, wherein the both ends of left radome fairing 51 with 11 phase of partition board
Clasp joint, the both ends of right radome fairing 52 with 11 phase clasp joint of partition board.
Specifically, as shown in fig. 7, plate face opposite with partition board 11 on left radome fairing 51 is equipped with the first clasp joint portion 511, every
Plate 11 is equipped with first mounting hole 111 corresponding with the first clasp joint portion 511, and right radome fairing 52 is equipped with the first clasp joint portion of evacuation
511 the first avoid holes 521；The plate face opposite with partition board 11 is equipped with second hook socket part 522 on right radome fairing 52, on partition board 11
Equipped with second mounting hole 112 corresponding with second hook socket part 522, left radome fairing 51 is equipped with the of evacuation second hook socket part 522
Two avoid holes 512 realize that left radome fairing 51 and right radome fairing 52 are separately fixed on partition board 11, structure in a manner of by clasp joint
Simply, easy for installation.
In second specific embodiment of the present invention, as shown in Figure 8 and Figure 9, radome fairing 50 includes being separately mounted to partition board
Left radome fairing 51 in 11 liang of opposite plate faces and right radome fairing 52, wherein the both ends of left radome fairing 51 with 11 phase of partition board
The both ends of snapping, right radome fairing 52 are interlockingly connected with partition board 11.
Specifically, as shown in Figure 8 and Figure 9, plate face opposite with partition board 11 on left radome fairing 51 is equipped with the first engaging portion
513 and/or 514, partition board 11 is equipped with first mounting hole 111 corresponding with the first engaging portion 513 and/or 514, right radome fairing 52
It is equipped with the first avoid holes 521 of the first engaging portion 513 and/or 514 of evacuation；The plate face opposite with partition board 11 on right radome fairing 52
It is equipped with the second engaging portion 523 and/or 524, partition board 11 is equipped with corresponding with the second engaging portion 523 and/or 524 second and installs
Hole 112, left radome fairing 51 is equipped with the second avoid holes 512 of the second engaging portion 523 and/or 524 of evacuation, to pass through the side of snapping
Formula realizes that left radome fairing 51 and right radome fairing 52 are separately fixed on partition board 11, simple in structure, easy for installation.
First engaging portion 513 or the second engaging portion 523 in Fig. 8, include the plate face with left radome fairing 51 or right radome fairing 52
The front end of connected interconnecting piece and the engaging portion extended to form from interconnecting piece to side for end, engaging portion has one to be oriented to tiltedly
Face can make the first engaging portion 513 or the second so that by pressing left radome fairing 51 or right radome fairing 52 to the direction of partition board 11
Engaging portion 523 snaps onto in the first mounting hole 111 or the second mounting hole 112 on partition board 11, simple in structure, easy for installation.
First engaging portion 514 or the second engaging portion 524 in Fig. 9, include the plate face with left radome fairing 51 or right radome fairing 52
Connected interconnecting piece and the engaging portion extended to form from interconnecting piece to both sides for end, the front end of engaging portion have respectively to both sides
Inclined guiding surface can make the first button so that by pressing left radome fairing 51 or right radome fairing 52 to the direction of partition board 11
Socket part 514 or the second engaging portion 524 snap onto in the first mounting hole 111 or the second mounting hole 112 on partition board 11, structure letter
It is single, it is easy for installation.
In the third specific embodiment of the present invention, as shown in Figure 10, radome fairing 50 includes being separately mounted to 11 liang of partition board
Left radome fairing 51 in opposite plate face and right radome fairing 52, wherein the one end of left radome fairing 51 and 11 phase clasp joint of partition board, another
One end is interlockingly connected with partition board 11, and one end and 11 phase clasp joint of partition board, the other end and the partition board 11 of right radome fairing 52 are interlockingly connected.
Specifically, as shown in Figure 10, the one end in plate face opposite with partition board 11 on left radome fairing 51 is equipped with the first hook
Socket part 511, the other end be equipped with the first engaging portion 513 or 514, partition board 11 be equipped with respectively with the first clasp joint portion 511 and first
Corresponding first mounting hole 111 of engaging portion 513 or 514, right radome fairing 52 are equipped with and avoid the first clasp joint portion 511 and first respectively
First avoid holes 521 of engaging portion 513 or 514；One end on right radome fairing 52 in the plate face opposite with partition board 11 is equipped with the
Two clasp joint portions 522, the other end be equipped with the second engaging portion 523 or 524, partition board 11 be equipped with respectively with second hook socket part 522 and
Second engaging portion, 523 or 524 corresponding second mounting hole 112, left radome fairing 51 are equipped with 522 He of evacuation second hook socket part respectively
Second avoid holes 512 of the second engaging portion 523 or 524.
In the 4th specific embodiment of the present invention, as shown in figure 11, radome fairing 50 is monolithic construction, on radome fairing 50
The installation seam 53 of perforation one end is offered, the width of installation seam 112 is adapted with the thickness of partition board 11, and the one of radome fairing 50
Partition board 11 is inserted into end from the free end of partition board 11, and sequentially passed through by screw the screw hole 54 opened up on radome fairing 50 and every
Radome fairing 50 is fixed on partition board 11 by the screw hole opened up on plate 11, realizes that radome fairing 50 is securely fixed on partition board 11,
It is simple in structure, it is easy for installation.
The present invention the 5th specific embodiment in, as shown in Figure 12 to Figure 14, radome fairing 50 include be separately mounted to every
Left radome fairing 51 in 11 liang of opposite plate faces of plate and right radome fairing 52；Wherein, left radome fairing 51 and right radome fairing 52 are opposite
One end respectively with 11 phase clasp joint of partition board or be interlockingly connected, the other end opposite with right radome fairing 52 of left radome fairing 51 is mutually clamped,
And the evacuation gap 55 for avoiding partition board 11 is formed between left radome fairing 51 and right radome fairing 52.
As shown in figure 12, the one end in plate face opposite with partition board 11 on left radome fairing 51 is equipped with the first clasp joint portion 511
Or first engaging portion 513 or 514, the other end are equipped with to the first limiting section 515 extended close to the partition board direction, the first limit
The side wall in position portion 515 is equipped with groove 516 (or convex closure)；One end on right radome fairing 52 in the plate face opposite with partition board 11 is set
There are second hook socket part 522 or the second engaging portion 523 or 524, the other end to be equipped with to close to the extension of partition board direction and with first and limit
The second limiting section 525 that position portion 515 is staggeredly arranged, the side wall of the second limiting section 525 be equipped with it is recessed on the first limiting section 515
The corresponding convex closure 526 (or groove) of slot 516 (or convex closure), as shown in Figure 13 and Figure 14, so that left radome fairing 51 and right rectification
The one end elder generation clasp joint of cover 52 snaps onto on partition board 11, then that the groove 516 on 51 the other end of left radome fairing is (or convex
Packet) it is mutually clamped with the convex closure 526 (or groove) on 52 the other end of right radome fairing, realize that left radome fairing 51 and right radome fairing 52 are same
When be fixed on partition board 11, it is simple in structure, it is easy for installation.
In one embodiment of the present of invention, spiral case 10 includes spiral case coaming plate 12, spiral case foreboard and spiral case backboard, spiral case foreboard
It is connected respectively with the both ends of the surface of spiral case coaming plate 12 with spiral case backboard, partition board 11 is connected on spiral case coaming plate 12, and is enclosed with spiral case
Plate 12 is integrally formed.
It should be noted that the radome fairing that the above embodiment of the present invention provides, can also be applied in single volute of blower, make
It obtains volute outlet flow velocity evenly, so that the static pressure distribution of volute outlet is more uniform and stable, is conducive to the discharge of flue gas,
Without departing from the inventive concept that do not invent, it is within the scope of the invention.
The embodiment of another aspect of the present invention provides a kind of range hood (not shown), including any of the above-described
Fan assembly described in embodiment, and with whole advantageous effects of the fan assembly described in above-described embodiment, it is no longer superfluous herein
It states.
In conclusion the above embodiment of the present invention provide fan assembly, by spiral case be equipped with separate left chamber body and
The partition board of right chamber body, and on partition board installation be connected smoothly with partition board and it is whole be in fusiformis structure radome fairing, in this way when
Air-flow will continue to that the surface molded line along radome fairing is smooth to move ahead when flowing to radome fairing, since radome fairing is in integrally fusiformis, increase
Distance that air-flow flows through simultaneously makes air-flow have one section of climbing distance, to make the flow velocity close to air-flow at radome fairing drop significantly
It is low, i.e., so that left and right air-flow notable reduction of speed before converging, to significantly reduce left and right air-flow converge at volute outlet and
The pneumatic microseismic noise generated, under the premise of not reducing spiral case entirety guide performance, reduce left and right air-flow in spiral case
Exit converges and the pneumatic microseismic noise that generates, improves the quality of range hood.
In the description of the present invention, unless otherwise prescribed or explanation, term " connection ", " connected " etc. should all do broad sense reason
Solution, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection, or electrical connection；Can be
It is connected directly, it can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fan assembly of range hood, includes spiral case with left chamber body and right chamber body, is respectively received in the left chamber
Body and impeller in the right chamber body, with the coaxially connected motor of the impeller and at the volute outlet of the spiral case
Check-valves, which is characterized in that
The end of the snail shell coiling molded line has the partition board extended to the volute outlet direction, the left chamber body and the right side
Cavity sets up separately in the partition board both sides, and is connected to form left air-out passage and right air-out passage with the volute outlet respectively；
Wherein, radome fairing is installed on the partition board, along the end of the snail shell coiling molded line to the volute outlet direction, institute
Partition board is stated to be connected smoothly with the radome fairing, and the radome fairing horizontal width first gradually increase, after be gradually reduced, with
It is in fusiformis to make the radome fairing integrally.
2. the fan assembly of range hood according to claim 1, which is characterized in that
The spiral case has spiral case median plane, and the motor in the left chamber body and the right chamber body is about the spiral case center
Face is symmetrical, and the partition board is located on the spiral case median plane, and the radome fairing is symmetrical about the spiral case median plane.
3. the fan assembly of range hood according to claim 2, which is characterized in that
The spiral case, which is equipped with, sets up volute tongue in the radome fairing both sides separately, the inner surface of the volute tongue to the spiral case median plane
Shortest distance L1, the radome fairing maximum horizontal extent L2 and the volute tongue inner surface to the outer surface of the radome fairing
Shortest distance L3 between relationship be：L1=0.5L2+L3.
4. the fan assembly of range hood according to claim 3, which is characterized in that
Away from institute at the shortest distance away from the spiral case median plane on the inner surface of the volute tongue and outer surface of the radome fairing
The line of the maximum distance apart of spiral case median plane is stated perpendicular to the spiral case median plane.
5. the fan assembly of range hood according to claim 3, which is characterized in that
Shortest distance L3 and the impeller to the spiral case center of the inner surface of the volute tongue to the outer surface of the radome fairing
Relationship between the shortest distance L4 in face is：1.2L4≤L3≤1.5L4.
6. the fan assembly of range hood according to any one of claim 1 to 5, which is characterized in that
The radome fairing includes being separately mounted to the left radome fairing in the opposite plate face of the partition board two and right radome fairing；Wherein,
The both ends of the left radome fairing with the partition board phase clasp joint, the both ends of the right radome fairing with the partition board phase hook
It connects；Or, the both ends of the left radome fairing are interlockingly connected with the partition board, the both ends of the right radome fairing with the partition board
It is interlockingly connected；Or, the one end of the left radome fairing is interlockingly connected with the partition board phase clasp joint, the other end with the partition board, it is described
The one end of right radome fairing is interlockingly connected with the partition board phase clasp joint, the other end with the partition board.
7. the fan assembly of range hood according to claim 6, which is characterized in that
On the left radome fairing plate face opposite with the partition board be equipped with the first clasp joint portion and/or the first engaging portion, it is described every
Plate is equipped with the first mounting hole corresponding with first clasp joint portion and/or first engaging portion, is set on the right radome fairing
There are the first avoid holes of evacuation first clasp joint portion and/or first engaging portion；
On the right radome fairing plate face opposite with the partition board be equipped with second hook socket part and/or the second engaging portion, it is described every
Plate is equipped with the second mounting hole corresponding with the second hook socket part and/or second engaging portion, is set on the left radome fairing
There are the second avoid holes for avoiding the second hook socket part and/or second engaging portion.
8. the fan assembly of range hood according to any one of claim 1 to 5, which is characterized in that
The radome fairing is monolithic construction, and the installation seam of perforation one end, the installation seam are offered on the radome fairing
Width be adapted with the thickness of the partition board, described in the one end of the radome fairing is inserted into from the free end of the partition board
Partition board, and be fixed by screws on the partition board.
9. the fan assembly of range hood according to any one of claim 1 to 5, which is characterized in that
The radome fairing includes being separately mounted to the left radome fairing in the opposite plate face of the partition board two and right radome fairing；Wherein,
The left radome fairing and the opposite one end of the right radome fairing respectively with the partition board phase clasp joint or be interlockingly connected, the left rectification
Cover the other end opposite with the right radome fairing is mutually clamped, and is formed between the left radome fairing and the right radome fairing useful
In the evacuation gap for avoiding the partition board.
10. a kind of range hood, which is characterized in that include the wind turbine of range hood as claimed in any one of claims 1-9 wherein
Component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092187.1A CN105570158B (en) | 2016-02-18 | 2016-02-18 | Range hood and its fan assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092187.1A CN105570158B (en) | 2016-02-18 | 2016-02-18 | Range hood and its fan assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105570158A CN105570158A (en) | 2016-05-11 |
| CN105570158B true CN105570158B (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610092187.1A Active CN105570158B (en) | 2016-02-18 | 2016-02-18 | Range hood and its fan assembly |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091062B (en) * | 2016-08-09 | 2019-01-22 | 广东美的厨房电器制造有限公司 | Range hood |
| CN106907748B (en) * | 2017-01-18 | 2019-03-22 | 广东美的厨房电器制造有限公司 | A kind of fan assembly and range hood |
| CN110274279B (en) * | 2018-03-16 | 2024-01-23 | 宁波方太厨具有限公司 | Range hood with parallel fans |
| CN108458439A (en) * | 2018-03-30 | 2018-08-28 | 浙江宣和电器有限公司 | Ceiling mounting type smoke eliminator mounting structure |
| CN108457881A (en) * | 2018-03-30 | 2018-08-28 | 浙江宣和电器有限公司 | Smoke eliminator and its double turbofans |
| CN110454437A (en) * | 2019-06-24 | 2019-11-15 | 西安航天泵业有限公司 | A kind of multistage middle open formula centrifugal pump first-stage double-absorption transition runner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204648615U (en) * | 2015-03-23 | 2015-09-16 | 上海习智环保科技有限公司 | Air purifier fan assembly lower cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19809559A1 (en) * | 1998-03-05 | 1999-09-09 | Bosch Siemens Hausgeraete | Extractor hood |
| DE10008014A1 (en) * | 2000-02-22 | 2001-08-23 | Bsh Bosch Siemens Hausgeraete | Vapor extractor hood, e.g. for kitchen, with central region of underside in inverted vee shape |
| CN1506622A (en) * | 2002-12-09 | 2004-06-23 | 上海开心电器有限公司 | Duplex centrifugal blower with great wind rate and less noise for kitchen ventilator |
| CN102261690A (en) * | 2011-09-09 | 2011-11-30 | 宁波舜韵电子有限公司 | External exhaust and internal circulation type thin smoke exhaust ventilator |
| CN104913359B (en) * | 2015-07-06 | 2017-07-28 | 宁夏康诚机电产品设计有限公司 | Double volute lampblack absorber |
| CN105090121B (en) * | 2015-09-08 | 2017-10-27 | 广东美的厨房电器制造有限公司 | Spiral case for range hood |
| CN205383667U (en) * | 2016-02-18 | 2016-07-13 | 广东美的厨房电器制造有限公司 | Range hood and fan subassembly thereof |
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2016
- 2016-02-18 CN CN201610092187.1A patent/CN105570158B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204648615U (en) * | 2015-03-23 | 2015-09-16 | 上海习智环保科技有限公司 | Air purifier fan assembly lower cover |
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