CN109236742A - Volute tongue, blower and kitchen ventilator - Google Patents
Volute tongue, blower and kitchen ventilator Download PDFInfo
- Publication number
- CN109236742A CN109236742A CN201811130358.0A CN201811130358A CN109236742A CN 109236742 A CN109236742 A CN 109236742A CN 201811130358 A CN201811130358 A CN 201811130358A CN 109236742 A CN109236742 A CN 109236742A
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- China
- Prior art keywords
- volute tongue
- rotation section
- bracket
- cylinder
- rotation
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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
- 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
- F04D29/422—Discharge tongues
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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
- F04D29/4206—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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of volute tongue, the volute tongue includes: volute tongue bracket and rotation section.The rotation section is rotatably arranged on the volute tongue bracket, and the fluid of water conservancy diversion is suitable for passing through the rotation section on the volute tongue bracket, and the rotation section is suitable for active rotation or is rotated by fluid driven.Volute tongue according to an embodiment of the present invention can reduce noise.
Description
Technical field
The present invention relates to air stream drives technical field, in particular to a kind of volute tongue, the blower with the volute tongue and have
The kitchen ventilator of the blower.
Background technique
In kitchen ventilator, the main function of the blower volute tongue for range hood is to shut off (impeller to be prevented to drive air-flow empty
Then do not go out), in general volute tongue can be divided into sharp tongue, deep tongue, short tongue, flat tongue, and for traditional straight volute tongue, volute tongue is got over
Deep, it is smaller with the gap of impeller, improved efficiency, but noise increases.In the related technology, volute tongue is a fixed structure,
Only spiral case involute section start is fixedly mounted on as a closure member.The shortcoming of this design is gas shock to snail
On tongue, any buffering is not had, and gas shock solid structure is directly translated into noise.
Impact is generated to generate noise in order to weaken air-flow to volute tongue, and industry invention generallys use special-shaped volute tongue to buffer
Gas shock.But abnormity design, air-flow can be all repelled after impacting in volute tongue anyway, can all generate eddy current crack.
For example, in the related technology, volute tongue is designed to the mechanism that can dynamically adjust, according to different oil smoke feelings
The radius of condition, active control volute tongue is adjusted, improve to a certain extent it is different in flow rate under noise control.But still it can not
Solve the reflection problems that gas shock is formed.For inner concave shape volute tongue structure under friction speed gas shock, noise reflection is obvious.Nothing
Method effectively eliminates or weakens eddy current crack, and alternatively, it is also possible to adjust the radius of volute tongue by active control system, but structure is multiple
It the problems such as miscellaneous, at high cost, poor reliability, can not be commonly used in kitchen ventilator.
Summary of the invention
An object of the present invention is to provide a kind of volute tongues, can reduce noise.
Another object of the present invention is to propose a kind of blower with the volute tongue.
An object of the present invention is to provide a kind of kitchen ventilators with the blower.
Volute tongue according to an embodiment of the present invention, the volute tongue include: volute tongue bracket and rotation section.The rotation section can turn
Dynamicly be set to the volute tongue bracket on, and on the volute tongue bracket water conservancy diversion fluid be suitable for pass through the rotation section, described turn
Dynamic portion is suitable for active rotation or is rotated by fluid driven.
Volute tongue according to an embodiment of the present invention can reduce noise.
In addition, volute tongue according to the above embodiment of the present invention, can also have the following additional technical features:
In some embodiments, the rotation section is set at the tip of the tongue of the volute tongue bracket.
In some embodiments, the volute tongue bracket includes fluoran stream surface and lee side, the fluoran stream surface and the lee side it
Between the acute angle with predetermined angular, the junction of the fluoran stream surface and the lee side forms the tip of the tongue.
In some embodiments, the volute tongue bracket is equipped with multiple rotation sections.
In some embodiments, multiple rotation sections are arranged along the extending direction of the volute tongue bracket.
In some embodiments, multiple rotation sections are arranged along the direction of the extending direction perpendicular to the volute tongue bracket.
In some embodiments, multiple rotation sections are along the extending direction of the volute tongue bracket and perpendicular to the volute tongue
It arranges in the direction of the extending direction of bracket.
In some embodiments, a part recess of the outer surface of the volute tongue bracket forms accommodation groove, the rotation section
At least part is set in the accommodation groove.
In some embodiments, the volute tongue bracket is equipped with interconnecting piece, and the interconnecting piece is cooperatively formed with the accommodation groove
Location hole, a part of the rotation section are rotatably positioned in the positioning hole.
In some embodiments, the positioning hole is socketed with bearing, and the rotation section is connected with the bearing.
In some embodiments, the rotation section includes: cylinder, the cylinder around its axis rotationally with the volute tongue branch
Frame is connected.
In some embodiments, the cylinder-shaped, which becomes internal, has cavity or in solid cylindrical shape.
In some embodiments, the outer peripheral surface of the cylinder is in rough shape.
In some embodiments, the rotation section further include: multiple fins on the cylinder outer peripheral surface, the fin
Along the cylinder axis direction extend, the multiple fin being circumferentially arranged along the cylinder, and two adjacent fins it
Between form sunk structure.
In some embodiments, the fin inclines on the axis direction of the cylinder towards the direction around the tubular axis
Tiltedly extend.
In some embodiments, the fin extends on the axis direction of the cylinder along curve or broken line direction.
In some embodiments, the fin includes the multistage that the axis direction along the rotation section is sequentially arranged.
In some embodiments, the fin includes the multistage being sequentially arranged along the axis direction of the cylinder, and described convex
Every section of rib is tilted both with respect to the axis of the rotation section, and the tilt angle of the multistage of the fin is identical or at least partly not
It is identical.
In some embodiments, the rotation section further include: multiple blades on the cylinder outer peripheral surface, the blade
Along being circumferentially arranged for the cylinder.
In some embodiments, the Pivot axle of the rotation section is extended in the same direction with the volute tongue bracket.
In some embodiments, the volute tongue further include: actuator, the actuator are connected with the rotation section to drive
State rotation section rotation.
In some embodiments, the actuator is fixedly installed on the volute tongue bracket.
In some embodiments, the actuator is motor or transmission mechanism.
Blower according to an embodiment of the present invention, comprising: spiral case and impeller, the spiral case include snail shell and volute tongue, described
Volute tongue is connected with the snail shell and protrudes into the snail shell from the inner peripheral surface of the snail shell, and the volute tongue is according to above-mentioned
Volute tongue；The impeller is set in the snail shell.
Kitchen ventilator according to an embodiment of the present invention, comprising: shell and blower, the blower is disposed in the housing, described
Blower is according to blower above-mentioned.
Detailed description of the invention
Fig. 1 is the schematic diagram of the volute tongue of one embodiment of the invention.
Fig. 2 is the perspective view of the explosion of the volute tongue of one embodiment of the invention.
Fig. 3 is the schematic diagram of the volute tongue of one embodiment of the invention.
Fig. 4 is the control mode schematic diagram of volute tongue shown in Fig. 3.
Fig. 5 is the schematic diagram of the kitchen ventilator of one embodiment of the invention.
Appended drawing reference: volute tongue 1, volute tongue bracket 11, rotation section 12, fluoran stream surface 101, lee side 102, accommodation groove 103, connection
Portion 111, location hole 104, bearing 13, cylinder 121, fin 122, axle portion 123, actuator 14,
Kitchen ventilator 100, spiral case 10, blower 20, snail shell 2, impeller 3, shell 30.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In conjunction with Fig. 1 to Fig. 3, volute tongue 1 according to an embodiment of the present invention, the volute tongue 1 includes: volute tongue bracket 11 and rotation
Portion 12.
Wherein, rotation section 12 is rotatably arranged on volute tongue bracket 11, and the fluid of water conservancy diversion is suitable on volute tongue bracket 11
By rotation section 12.Wherein, rotation section is suitable for active rotation or is rotated by fluid driven.
When rotation section is configured to can be rotated by fluid driven, the mistake of air-flow is guided in the spiral case 10 with the volute tongue 1
Cheng Zhong, air-flow will water conservancy diversion Jing Guo volute tongue 1 to be sent out from the outlet of spiral case 10, carry out water conservancy diversion along volute tongue 1 in air-flow
In the process, volute tongue 1 will rotate under the action of air-flow, that is to say, that and a part of kinetic energy of air-flow is transmitted on rotation section 12,
The kinetic energy rejection for leading to air-flow weakens the kinetic energy of air-flow, moreover, after the kinetic energy of air-flow is weakened, it can be with smaller speed
The inner surface of spiral case 10 is washed away, to reduce noise.
When rotation section is configured to be only capable of active rotation, wherein it should be noted that rotation section active rotation, refers to and turn
Dynamic portion is rotated under the driving effect of external actuator, rather than is rotated under fluid driven.It is arranged in volute tongue 1 at this time
Actuator 14 can drivingly drive rotation section 12 to rotate, that is to say, that volute tongue 1 further includes actuator by actuator 14
14, actuator 14 is connected to drive rotation section 12 to rotate with rotation section 12.Rotation section 12 is driven by actuator, can allow rotation
Portion 12 initiatively rotates, and when air-flow is by rotation section 12, actively the rotation section 12 of rotation will break up air-flow, the air-flow for being
Energy is consumed, and after especially air-flow is broken up, energy consumption can be automatically carried out between air-flow, thus with can be effectively
Noise reduction.
Volute tongue 1 according to an embodiment of the present invention can convert the impact that air-flow generates to the rotational kinetic energy of rotation section 12
It consumes, air-flow is avoided to be reflected, or form vortex and generate noise, to realize the purpose of sound-deadening and noise-reducing.
Such as Fig. 1, in some embodiments, rotation section 12 is set at the tip of the tongue of volute tongue bracket 11.Air-flow is passing through volute tongue bracket
When 11 the tip of the tongue, a part of kinetic energy of air-flow is passed to rotation section 12, to reduce the impact force of air-flow.Reduction is made an uproar
Sound.
Certainly, the present invention in volute tongue 1 be not necessarily disposed on the tip of the tongue of volute tongue 1, also can be set in volute tongue 1
Other positions, such as by rotation section 12 set on the tip of the tongue upstream of volute tongue 1 (air-flow first passes through rotation section 12 before by the tip of the tongue)
Deng.
Wherein, such as Fig. 1, volute tongue bracket 11 includes fluoran stream surface 101 and lee side 102, when air-flow reaches volute tongue 1, air-flow
Fluoran stream surface 101 will be first passed around, reaches the tip of the tongue under the guide functions in drainage face, is then sent out from the tip of the tongue.Wherein, fluoran stream surface
With the acute angle of predetermined angular, the junction formation the tip of the tongue of fluoran stream surface 101 and lee side 102 between 101 and lee side 102.
In addition, in some embodiments of the invention, fluoran stream surface 101 and lee side 102 etc. can be not provided with, such as will draw
Stream interface, lee side 102 etc. are integrated on the snail shell 2 of spiral case 10, and fluoran stream surface 101 or lee side are arranged no longer in volute tongue 1
102.Furthermore it is also possible to which drainage face and lee side 102 are all arranged to rotation section 12 above-mentioned, that is to say, that by turning
Dynamic portion 12 occupies whole fluoran stream surfaces 101 (or rotation section 12 occupies whole lee sides 102), is also equivalent in volute tongue 1
No longer there is drainage face (lee side 102).
In some embodiments, volute tongue bracket 11 is equipped with multiple rotation sections 12.Multiple rotation sections 12 can provide point respectively
The effect of the air-dispersing energy of flow, to further improve the effect of sound-deadening and noise-reducing.
Further, multiple rotation sections 12 are arranged along the extending direction (front-rear direction in referring to Fig.1) of volute tongue bracket 11.
It arranges in addition, multiple rotation sections 12 also can be set into along the direction of the extending direction perpendicular to volute tongue bracket 11.
Alternatively, it is also possible to be arranged to, multiple rotation sections 12 are along the extending direction of volute tongue bracket 11 and perpendicular to volute tongue branch
It arranges in the direction of the extending direction of frame 11.For example, multiple rotation sections 12 to be arranged to the form arranged along matrix.In another example will
Multiple rotation sections 12 are scattered in the multiple groups along the setting of the direction of the extending direction perpendicular to the volute tongue bracket 11, and each group all has
There are multiple rotation sections 12 of one or the extending direction arrangement along the volute tongue bracket 11.
Certainly, the present invention in when multiple rotation sections 12 are arranged, multiple rotation sections 12 can also according to other forms into
Row arrangement, for example, around the form of center arrangement, moreover, phase can be set into the Pivot axle of multiple rotation sections 12
Form that is mutually parallel or being overlapped；The Pivot axle of multiple rotation sections 12 can also be arranged to the angle with predetermined angular,
Wherein, the Pivot axle of multiple rotation sections 12 can be not parallel for part, or all not parallel between any two.
Multiple rotation sections 12 can be independent from each other, and be also possible to the form of linkage.
In addition, a rotation section 12 can also only be arranged on volute tongue bracket 11 in the present invention.
In some embodiments, a part recess of the outer surface of volute tongue bracket 11 forms accommodation groove combined with Figure 1 and Figure 2,
103, at least part of rotation section 12 is set in accommodation groove 103.By accommodation groove 103, rotation section 12 can be effectively accommodated,
Air-flow is influenced to avoid the prominent volute tongue 1 in rotation section 12 too many, it, can be in addition, when rotation section 12 is set in accommodating cavity
A part of rotation section 12 is stretched out into accommodating cavity, in order to which air-flow can be by rotation section 12, to consume by rotation section 12
The kinetic energy of air-flow.
It, will be other than the outer surface of the setting of rotation section 12 and volute tongue 1 alternatively, it is also possible to be not provided with accommodation groove 103.
Specifically, referring to Fig.1, volute tongue bracket 11 may include windward side, leeward, wherein accommodation groove 103 it is interior
Surface is connected between windward side and leeward, to make outer surface (including windward side, leeward and the appearance of volute tongue bracket 11
Set the inner surface etc. of slot 103) surface sealed is formed, guarantee air-flow stablizes circulation without revealing.
Advantageously, referring to Fig. 2, volute tongue bracket 11 is equipped with interconnecting piece 111, and interconnecting piece 111 is cooperatively formed with accommodation groove 103
Location hole 104, a part of rotation section 12 are rotatably positioned in location hole 104.It, can be to rotation by location hole 104
Portion 12 is positioned, and convenient for the installation of rotation section 12, improves the stability of rotation section 12.
In addition, referring to Figures 1 and 2, rotation section 12 extends along the longitudinal direction, the rear and front end of rotation section 12 is all connected with volute tongue
Bracket 11, wherein accommodation groove 103 extends along the longitudinal direction, and the front-end and back-end of accommodation groove 103 are equipped with the interconnecting piece
111, location hole 104 is respectively formed in the rear and front end of accommodation groove 103 by interconnecting piece 111, and by the front and back of rotation section 12 two
End is rotatably engaged in location hole 104.
Further, bearing 13 is socketed in location hole 104 combined with Figure 1 and Figure 2, and rotation section 12 is connected with bearing 13.
By the way that bearing 13 is arranged, the rotation of rotation section 12 can be convenient.
Wherein, bearing 13 can be ball ball bearing 13 etc..
Specifically, axle portion 123 can be set on rotation section 12 combined with Figure 1 and Figure 2, bearing 13 can be socketed in axis
In portion 123, then the insertion of bearing 13 is set in connecting hole.
Wherein, combined with Figure 1 and Figure 2, such as previous embodiment, two location holes 104 can be set, it therefore, similarly can be with
Two bearings 13 are set, certainly, in the present invention with no restrictions to the quantity of location hole 104, bearing 13 etc., and location hole 104
Quantity with bearing 13 can not also be identical, for example, more interconnecting pieces 111 are arranged, and a small amount of bearing 13 is arranged.
In some embodiments, referring to Fig. 2, rotation section 12 includes: cylinder 121, cylinder 121 around its axis rotationally with snail
Tongue bracket 11 is connected.Further, cylinder 121, which is formed as internal, has cavity or in solid cylindrical shape.
Advantageously, the outer peripheral surface of cylinder 121 is in rough shape.Concaveconvex structure on the outer peripheral surface of cylinder 121 can
To promote air stream drives cylinder 121, that is to say, that effectively the kinetic energy of air-flow is transmitted on rotation section 12.
In some embodiments, referring to Fig. 2, rotation section 12 further include: multiple fins 122 on 121 outer peripheral surface of cylinder,
Fin 122 extends along the axis direction of cylinder 121, multiple being circumferentially arranged along cylinder 121 of fin 122, and adjacent two are convex
Sunk structure is formed between rib 122.For air-flow when by rotation section 12, the kinetic energy of air-flow will be transmitted to rotor by fin 122
In portion.
Further, fin 122 can have many different forms.
Extend for example, fin 122 tilts on the axis direction of cylinder 121 towards the direction around 121 axis of cylinder.
In another example fin 122 extends on the axis direction of cylinder 121 along curve or broken line direction.
In another example fin 122 includes the multistage that the axis direction along rotation section 12 is sequentially arranged.
In another example fin 122 includes the multistage being sequentially arranged along the axis direction of cylinder 121, and every section of fin 122 is
Axis relative to rotation section 12 tilts, and the tilt angle of the multistage of fin 122 is identical or at least partly not identical.
In addition, the rotation section 12 in the present invention can also be 3 formula structure of impeller, for example, rotation section 12 further include: be set to cylinder
Multiple blades on 121 outer peripheral surface of body, blade are circumferentially arranged along cylinder 121.
In some embodiments, Pivot axle and the volute tongue bracket 11 of rotation section 12 are extended in the same direction.Convenient for airflow mistake
Energy transmission in journey.
The present invention devises a kind of volute tongue 1 that can be rotated with air-flow, can convert rotation for the impact that air-flow generates
The rotational kinetic energy in portion 12 (such as idler wheel) consumes, and air-flow is avoided to be reflected, or forms vortex and generate noise.Change tradition
The integrated solid organization plan of volute tongue 1 realizes a kind of air-flow buffer function in such a way that volute tongue bracket 11 and idler wheel combine
Energy.Structure is simple, at low cost, high reliablity, can be in commonly used all kinds of kitchen ventilators.
The present invention changes the integral structure of traditional volute tongue 1, and by the way of multiple part correlation combiners, realize drop
It makes an uproar function.Core part includes idler wheel, spring bearing 13, volute tongue bracket 11.Idler wheel is a cylindrical structure, and surface is striated
Protrusion, both ends are fixed on volute tongue bracket 11 by spring bearing 13.
The working principle of the invention is the buffer function using rolling structure, accepts and alleviate the impact of high-speed flow.?
Under high-speed flow impact, using traditional 1 structure of volute tongue, the collision of air-flow and structure can be generated in the tip of the tongue position, generate a large amount of whirlpools
Flow noise.After idler wheel volute tongue 1 of the invention, air-flow is when impacting the tip of the tongue position, due to the rotation of roller structure, by gas
Stream whirlpool is broken up, so that noise can not be generated.
Idler wheel volute tongue 1 is mounted on smoke machine spiral case 10, when blower 20 works, in gas shock to volute tongue 1 after, due to rolling
Wheel belongs to rolling member, can rotate under air-flow drive.The energy of air-flow is converted into the rotational kinetic energy of idler wheel, to make air-flow
Noise is not reflected, and is almost consumed in a manner of kinetic energy conversion.Gas shock may be had and produce by being finally effectively reduced
Raw noise.
The present invention can reduce pneumatic noise of the kitchen ventilator at volute tongue 1,1 structure of 1 structure of idler wheel volute tongue and traditional volute tongue
It can be compatible with substitution completely, do not need modification peripheral structure.Structure is simply at low cost；
Wherein, originally peddling you can be by the roller structure and shape in change idler wheel volute tongue 1, such as idler wheel is made into
Blade structure, or be made into polygonized structure etc.；2 can be made by the number by change idler wheel volute tongue 1, such as by idler wheel
It is a, 3, multiple idler wheels it is in series or in parallel etc.；It can be horizontal by the combining form of change idler wheel volute tongue 1, such as by idler wheel
To or be longitudinally arranged, reach same noise reduction effect etc.；Can by changing the size and material etc. of idler wheel volute tongue 1, such as
It is other materials or the other structures sizes such as metal, plastics by 1 material altering of idler wheel volute tongue；It can be by changing idler wheel volute tongue 1
Installation site, such as idler wheel volute tongue 1 is mounted on other positions and realizes same function；
In addition, referring to Fig. 3 in other embodiments of the invention, actuator 14 can also be arranged in volute tongue 1, pass through
Actuator 14 can drivingly drive rotation section 12 to rotate, that is to say, that volute tongue 1 further includes actuator 14, actuator 14 with turn
Dynamic portion 12 is connected to drive rotation section 12 to rotate.
Rotation section 12 is driven by actuator, rotation section 12 can be allowed initiatively to rotate, when air-flow is by rotation section 12,
Actively the rotation section 12 of rotation will break up air-flow, and the energy for the air-flow for being is consumed, after especially air-flow is broken up, air-flow
Between can automatically carry out energy consumption, thus with can effectively noise reduction.
In addition, can be rotated under the driving effect of air-flow when the rotation section in the present invention does not connect actuator.And turn
Dynamic portion is connected to after actuator, and rotation section can be set into can be rotated under the driving effect of air-flow, also can be set into
It not can be rotated under the driving effect of air-flow.
In some embodiments of the invention, actuator 14 is fixedly installed on volute tongue bracket 11.Pass through volute tongue bracket 11
Support is provided to actuator 14, avoids actuator 14 from excessive weight transmitting to rotation section 12, can effectively improving and turns
The stability that dynamic portion 12 rotates.
Further, actuator 14 is motor or transmission mechanism.
That is, the power source that motor is rotated as driving rotation section 12 can be separately provided, it can also be passed through
His equipment transfers power on rotation section 12 under the transmitting effect of transmission mechanism.
Wherein, the volute tongue 1 in the present invention can be applied in kitchen ventilator, at this point it is possible to pass through the motor etc. in kitchen ventilator
Structure (such as motor of driving 10 inner impeller 3 of spiral case) driving rotation section 12 is run, specifically, passing through transmission mechanism for power
The power in source is transmitted on rotation section 12.
In addition, in conjunction with embodiment above-mentioned, the rotation section 12 in the present invention can be multiple, and multiple rotation sections 12 can be with
It is driven by the same power source, different power sources can be set also to drive different rotation sections 12.
It is provided with actuator 14 in the present invention to come after active drive rotation section 12, operation logic is not provided with aforementioned
The operation logic of actuator 14 is not fully identical.
The present invention devises a kind of volute tongue 1 that can be rotated with air-flow, changes the integrated solid structure of traditional volute tongue 1
Scheme realizes a kind of air-flow buffer function in such a way that volute tongue bracket 11 and rotation section 12 (such as idler wheel) combine.The present invention
Structure is simple, at low cost, high reliablity, can be in commonly used all kinds of kitchen ventilators.
1 structure of volute tongue of the invention includes three parts, and one is 11 part of volute tongue bracket, and one is 13 support portion of bearing
Point, the last one is roller portion.After three component assemblings, 1 component of volute tongue that can be rolled is formed.
Wherein idler wheel, which can be set into, is driven by a motor rotation, and the control system of motor is as shown in Figure 4.
The present invention changes the integral structure of traditional volute tongue 1, and by the way of multiple part correlation combiners, realize drop
It makes an uproar function.Core part includes idler wheel, spring bearing 13, volute tongue bracket 11.Idler wheel is a cylindrical structure, and surface is striated
Protrusion, both ends are fixed on volute tongue bracket 11 by spring bearing 13.
The working principle of the invention is the buffer function using rolling structure, accepts and alleviate the impact of high-speed flow.?
Under high-speed flow impact, using traditional 1 structure of volute tongue, the collision of air-flow and structure can be generated in the tip of the tongue position, generate a large amount of whirlpools
Flow noise.After idler wheel volute tongue 1 of the invention, air-flow is when impacting the tip of the tongue position, due to the rotation of roller structure, by gas
Stream whirlpool is broken up, so that noise can not be generated.
Idler wheel volute tongue 1 is mounted on smoke machine spiral case 10, when blower 20 works, in gas shock to volute tongue 1 after, due to rolling
Wheel belongs to rolling member, can rotate under air-flow drive.The energy of air-flow is converted into the rotational kinetic energy of idler wheel, to make air-flow
Noise is not reflected, and is almost consumed in a manner of kinetic energy conversion.Gas shock may be had and produce by being finally effectively reduced
Raw noise.
The present invention does not need the face shaping of change smoke machine, it is ensured that user is in installation, use, maintenance, with mainstream smoke machine
There is no any discomfort.
In addition, the present invention can be made into flabellum by the roller structure and shape in change idler wheel volute tongue 1, such as by idler wheel
Structure, or be made into polygonized structure etc..Can by change idler wheel volute tongue 1 number, such as by idler wheel be made into 2,3,
Multiple idler wheels it is in series or in parallel etc..It can be such as lateral or vertical by idler wheel by changing the combining form of idler wheel volute tongue 1
To arrangement, reach same noise reduction effect etc..It can be by changing the size and material etc. of idler wheel volute tongue 1, such as by idler wheel snail
1 material altering of tongue is other materials or the other structures sizes such as metal, plastics.The installation position of change idler wheel volute tongue 1 can be passed through
It sets, such as idler wheel volute tongue 1 is mounted on other positions and realizes same function.The installation side of change idler wheel motor can be passed through
Formula, such as by transmission mechanisms such as gear, belts, is horizontally mounted or right angle setting etc..It can be realized by other power sources
Rotation control to idler wheel volute tongue 1, such as 20 motor power of blower is input to by other means in idler wheel volute tongue 1；
Volute tongue 1 in the present invention can be applied in the electric appliances such as kitchen ventilator, air conditioner, dish-washing machine, and institute is in need to use snail
The equipment that shell 10, volute tongue 1 carry out air stream drives can carry out noise reduction using volute tongue 1 of the invention, for example, snail of the invention
Tongue 1 can also be applied in the equipment such as dish-washing machine, air conditioner.
In addition, additionally providing a kind of blower 20 in the present invention, which includes spiral case 10 and impeller 3, and spiral case 10 includes
Snail shell 2 and volute tongue, volute tongue are connected with snail shell 2 and protrude into snail shell 2 from the inner peripheral surface of snail shell 2, and volute tongue is according to aforementioned
Volute tongue；Impeller 3 is set in snail shell 2.
Wherein, snail shell 2 can be using the snail shell 2 in routine techniques, wherein the inner circumferential molded line of snail shell 2 can be
Involute or other shapes.
In some embodiments, volute tongue is integrally formed with snail shell 2 or is connect by fixing piece.
Wherein, volute tongue can be connect with snail shell 2 by fixing piece, such as volute tongue and snail shell 2 are passed through screw, bolt
Etc. linking together, volute tongue can also be installed on snail shell 2 by modes such as buckles, convenient for the installation of volute tongue, maintenance and
Replacement.
Furthermore it is also possible to which volute tongue and snail shell 2 are integrally formed.For example, opening is set on snail shell 2, space in volute tongue
Opening week along with the opening week on snail shell 2 along being connected, to realize the sealing and diversion effect of 10 entirety of spiral case.
In addition, blower 20 provided by the invention includes spiral case 10 above-mentioned, impeller 3 is provided in spiral case 10, specifically
For, impeller 3 is set in snail shell 2.In 3 rotary course of impeller, air-flow can be promoted to circulate along snail shell 2.
The present invention also provides a kind of kitchen ventilators 100, including shell 30 and blower 20, wherein blower 20 is set to shell 30
Interior, blower 20 can be the blower 20 of previous embodiment description.
Kitchen ventilator 100 in the present invention can use volute tongue above-mentioned or 10 structure of spiral case carries out sound-deadening and noise-reducing.
Certainly, the structures such as the blower 20 in the present invention, spiral case 10, volute tongue can also be set applied to dish-washing machine, air conditioner etc.
It is standby upper.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (20)
1. a kind of volute tongue, which is characterized in that the volute tongue includes:
Volute tongue bracket；
Rotation section, the rotation section are rotatably arranged on the volute tongue bracket, and on the volute tongue bracket water conservancy diversion fluid
Suitable for passing through the rotation section, the rotation section is suitable for active rotation or is rotated by fluid driven.
2. volute tongue according to claim 1, which is characterized in that the rotation section is set at the tip of the tongue of the volute tongue bracket.
3. volute tongue according to claim 2, which is characterized in that the volute tongue bracket includes fluoran stream surface and lee side, described
With the acute angle of predetermined angular, the junction formation tongue of the fluoran stream surface and the lee side between fluoran stream surface and the lee side
Point.
4. volute tongue according to claim 1, which is characterized in that the volute tongue bracket is equipped with multiple rotation sections.
5. volute tongue according to claim 4, which is characterized in that
It arranges along the extending direction of the volute tongue bracket multiple rotation sections；And/or
It arranges along the direction of the extending direction perpendicular to the volute tongue bracket multiple rotation sections.
6. volute tongue according to any one of claims 1-5, which is characterized in that one of the outer surface of the volute tongue bracket
Recess is divided to form accommodation groove, at least part of the rotation section is set in the accommodation groove.
7. volute tongue according to claim 6, which is characterized in that the volute tongue bracket is equipped with interconnecting piece, the interconnecting piece
Location hole is cooperatively formed with the accommodation groove, a part of the rotation section is rotatably positioned in the positioning hole.
8. volute tongue according to claim 7, which is characterized in that the positioning hole is socketed with bearing, and the rotation section
It is connected with the bearing.
9. volute tongue according to claim 1, which is characterized in that the rotation section includes:
Cylinder, the cylinder are rotationally connected with the volute tongue bracket around its axis.
10. volute tongue according to claim 9, which is characterized in that the cylinder-shaped, which becomes internal, has cavity or in solid
Cylindrical shape.
11. volute tongue according to claim 9, which is characterized in that the outer peripheral surface of the cylinder is in rough shape.
12. volute tongue according to claim 9, which is characterized in that the rotation section further include:
Multiple fins on the cylinder outer peripheral surface, the fin extend along the axis direction of the cylinder, multiple described
Fin is circumferentially arranged along the cylinder, and forms sunk structure between two adjacent fins.
13. volute tongue according to claim 12, which is characterized in that
The fin, which tilts on the axis direction of the cylinder towards the direction around the tubular axis, to be extended；Or
The fin extends on the axis direction of the cylinder along curve or broken line direction；Or
The fin includes the multistage that the axis direction along the rotation section is sequentially arranged；Or
The fin includes the multistage being sequentially arranged along the axis direction of the cylinder, and every section of the fin is both with respect to institute
The axis inclination of rotation section is stated, the tilt angle of the multistage of the fin is identical or at least partly not identical.
14. volute tongue according to claim 9, which is characterized in that the rotation section further include:
Multiple blades on the cylinder outer peripheral surface, the blade are circumferentially arranged along the cylinder.
15. volute tongue according to claim 1, which is characterized in that the Pivot axle of the rotation section and the volute tongue branch
Frame extends in the same direction.
16. volute tongue according to claim 1, which is characterized in that the volute tongue further include:
Actuator, the actuator are connected to drive the rotation section to rotate with the rotation section.
17. volute tongue according to claim 16, which is characterized in that the actuator is fixedly installed in the volute tongue bracket
On.
18. volute tongue according to claim 16, which is characterized in that the actuator is motor or transmission mechanism.
19. a kind of blower characterized by comprising
Spiral case, the spiral case include snail shell and volute tongue, and the volute tongue is connected with the snail shell and out of described snail shell
Circumferential surface protrudes into the snail shell, and the volute tongue is the volute tongue according to any one of claim 1-18；
Impeller, the impeller are set in the snail shell.
20. a kind of kitchen ventilator characterized by comprising
Shell；
Blower, the blower are disposed in the housing, and the blower is the blower according to claim 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130358.0A CN109236742B (en) | 2018-09-27 | 2018-09-27 | Volute tongue, fan and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130358.0A CN109236742B (en) | 2018-09-27 | 2018-09-27 | Volute tongue, fan and range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236742A true CN109236742A (en) | 2019-01-18 |
| CN109236742B CN109236742B (en) | 2020-09-22 |
Family
ID=65056283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811130358.0A Active CN109236742B (en) | 2018-09-27 | 2018-09-27 | Volute tongue, fan and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236742B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508508A (en) * | 2020-11-16 | 2022-05-17 | 广东美的白色家电技术创新中心有限公司 | Fan and lampblack absorber |
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| WO2004090337A1 (en) * | 2003-04-14 | 2004-10-21 | Danfoss A/S | A ventilating device comprising a cross-flow impeller |
| US20080292455A1 (en) * | 2007-05-25 | 2008-11-27 | Husqvarna Outdoor Products Inc. | Centrifugal air blower |
| CN106907351A (en) * | 2017-04-26 | 2017-06-30 | 广东美的制冷设备有限公司 | Spiral case, blower fan and air-conditioner |
| CN206919174U (en) * | 2017-06-09 | 2018-01-23 | 青岛海尔空调器有限总公司 | A kind of air-conditioning for changing air-out direction |
| CN207906153U (en) * | 2018-01-25 | 2018-09-25 | 宁波方太厨具有限公司 | A kind of wind turbine volute tongue |
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2018
- 2018-09-27 CN CN201811130358.0A patent/CN109236742B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004090337A1 (en) * | 2003-04-14 | 2004-10-21 | Danfoss A/S | A ventilating device comprising a cross-flow impeller |
| US20080292455A1 (en) * | 2007-05-25 | 2008-11-27 | Husqvarna Outdoor Products Inc. | Centrifugal air blower |
| CN106907351A (en) * | 2017-04-26 | 2017-06-30 | 广东美的制冷设备有限公司 | Spiral case, blower fan and air-conditioner |
| CN206919174U (en) * | 2017-06-09 | 2018-01-23 | 青岛海尔空调器有限总公司 | A kind of air-conditioning for changing air-out direction |
| CN207906153U (en) * | 2018-01-25 | 2018-09-25 | 宁波方太厨具有限公司 | A kind of wind turbine volute tongue |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508508A (en) * | 2020-11-16 | 2022-05-17 | 广东美的白色家电技术创新中心有限公司 | Fan and lampblack absorber |
| CN114508508B (en) * | 2020-11-16 | 2024-04-02 | 广东美的白色家电技术创新中心有限公司 | Fan and range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109236742B (en) | 2020-09-22 |
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Effective date of registration: 20220721 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311 20 Beijiao Road, Beijiao Town, Shunde District, Foshan, Guangdong Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. |
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