CN109944828A - A kind of centrifugal blower and electric appliance - Google Patents
A kind of centrifugal blower and electric appliance Download PDFInfo
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- CN109944828A CN109944828A CN201910255690.8A CN201910255690A CN109944828A CN 109944828 A CN109944828 A CN 109944828A CN 201910255690 A CN201910255690 A CN 201910255690A CN 109944828 A CN109944828 A CN 109944828A
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Abstract
This application involves a kind of centrifugal blowers, comprising: wheel disc；The blade being set on the wheel disc, the blade include leaning out portion, and the direction that leans out for leaning out portion includes leaning out to the wheel disc side and leaning out to the wheel disc opposite side.Centrifugal blower leans out portion by being arranged on blade, and leans out portion and lean out to wheel disc side and lean out to wheel disc opposite side, leans out and enhances the acting ability of blade, so that the air quantity of centrifugal blower and wind pressure is become larger, and reduce energy consumption.The application further relates to a kind of electric appliance.
Description
Technical field
This application involves blower technical fields, such as are related to a kind of centrifugal blower and electric appliance.
Background technique
Currently, centrifugal blower, which is arranged in some electric equipment products, is used to suction wind, such as is arranged in exhauster for removing kitchen fumes,
Or be arranged in gas heater, suction is carried out to the flue gas of generation.In some cases, flue resistance is larger, centrifugal blower
The suction effect of flue gas is weakened, such as the electric mounting with centrifugal blower is in building, as building height increases,
Flue resistance constantly increases, and the suction effect of centrifugal blower is affected.
During realizing the embodiment of the present disclosure, at least there are the following problems in the related technology for discovery:
The wind pressure and air quantity of centrifugal blower are up for improving.
Summary of the invention
In order to which some aspects of the embodiment to disclosure have basic understanding, simple summary is shown below.It is described general
Including is not extensive overview, nor to determine key/critical component or describe the protection scope of these embodiments, but is made
For the preamble of following detailed description.
According to the one aspect of the embodiment of the present disclosure, a kind of centrifugal blower is provided.
In some optional embodiments, the centrifugal blower includes: wheel disc；The blade being set on the wheel disc, it is described
Blade includes leaning out portion, and the direction that leans out for leaning out portion includes leaning out to the wheel disc side and to opposite with the wheel disc one
Side is leant out.
According to the other side of the embodiment of the present disclosure, a kind of electric appliance is provided.
In some optional embodiments, the electric appliance includes the centrifugal blower that any one of aforementioned alternative embodiment provides.
Following technical effect may be implemented in some technical solutions that the embodiment of the present disclosure provides:
Centrifugal blower leans out portion by being arranged on blade, and leans out portion and lean out to wheel disc side and to opposite with wheel disc one
Side is leant out, and so that the air quantity of centrifugal blower and wind pressure is become larger, and reduce energy consumption.
Above general description and it is discussed below be only it is exemplary and explanatory, be not used in limitation the application.
Detailed description of the invention
One or more embodiments are illustrated by corresponding attached drawing, these exemplary illustrations and attached drawing
The restriction to embodiment is not constituted, the element with same reference numbers label is shown as similar element in attached drawing, and attached drawing is not
Composition limitation, and wherein:
Fig. 1 is the structural schematic diagram for the centrifugal blower that the embodiment of the present disclosure provides；
Fig. 2 is the side view for the centrifugal blower that the embodiment of the present disclosure provides；
Fig. 3 is the portion the A enlarged drawing of Fig. 2；
Fig. 4 is the sectional side view for the centrifugal blower that the embodiment of the present disclosure provides；
Fig. 5 is the enlarged drawing at the position of the axis of Fig. 4 or more；
Fig. 6 is the structural schematic diagram for the centrifugal blower that another open embodiment provides；
Fig. 7 is the boost performance test result for the centrifugal blower that the embodiment of the present disclosure provides；
Fig. 8 is the consumption reduction the performance test results for the centrifugal blower that the embodiment of the present disclosure provides；
Fig. 9 is the structural schematic diagram for the centrifugal blower that another open embodiment provides.
Figure 10 is the structural schematic diagram for the centrifugal blower that another open embodiment provides；
Figure 11 is the portion the B detail view of Figure 10；
Figure 12 is the structural schematic diagram for the centrifugal blower that another open embodiment provides；
Figure 13 is Figure 12 wheel disc axis above section sectional side view；
Figure 14 is the structural schematic diagram for the centrifugal blower that another open embodiment provides；
Figure 15 is the rearview of Figure 14.
Appended drawing reference:
10, wheel disc；20, blade；21, portion is leant out；211, first portion is leant out；212, second portion is leant out；31, the first air inlet
Mouthful；32, the second air inlet；40, spiral case；41, first it is provide with portion；42, second it is provide with portion.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present disclosure and technology contents, with reference to the accompanying drawing to this public affairs
The realization for opening embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used to limit the embodiment of the present disclosure.
In technical description below, for convenience of explanation for the sake of, disclosed embodiment is fully understood with providing by multiple details.
However, one or more embodiments still can be implemented in the case where without these details.It in other cases, is simplification
Attached drawing, well known construction and device can simplify displaying.
The embodiment of the present disclosure provides a kind of centrifugal blower, as shown in Figure 1, comprising: wheel disc 10；The leaf being set on wheel disc 10
Piece 20, blade 20 include leaning out portion 21, and the direction that leans out for leaning out portion 21 includes at least one of, lean out to 10 side of wheel disc and
It is leant out to 10 opposite side of wheel disc.
In this way, keeping centrifugal blower at least one of with the following functions, increasing the swing flap stress of blade 20 and being conducive to air-flow
Into.
Optionally, as shown in Figure 1, a kind of centrifugal blower, comprising: wheel disc 10；The blade 20 being set on wheel disc 10, blade
20 include leaning out portion 21, and the direction that leans out for leaning out portion 21 includes leaning out to 10 side of wheel disc and leaning out to 10 opposite side of wheel disc.
In this embodiment, it leans out portion 21 and is leant out to 10 side of wheel disc and be conducive to air from air inlet entrance, lean out portion 21
The swing flap stress for being conducive to increase blade 20 is leant out to 10 opposite side of wheel disc, is passed through setting on blade 20 and is leant out portion 21, enhances
The acting ability of blade 20, makes the air quantity of centrifugal blower and wind pressure become larger, and reduce energy consumption.
Optionally, portion 21 is leant out to lean out to the axis of rotation of wheel disc 10, or lean out portion 21 lean out direction be directed toward rotary shaft
Any position on the heart to the radius between 10 circumference of wheel disc.In this way, air can be made to be easy to enter from air inlet.
Optionally, it leans out portion 21 and is set to blade 20 and leant out close to the position of wheel disc 10 and to 10 side of wheel disc, and visit
Portion 21 is set to position of the blade 20 far from wheel disc 10 and leans out to 10 opposite side of wheel disc out.In this way, be conducive to air from into
Air port enters, and increases the swing flap stress of blade 20, reduces noise when centrifugal blower operating, enhance blade 20 does function
Power makes the air quantity of centrifugal blower and wind pressure become larger, and reduces energy consumption.
Optionally, the portion 21 that leans out leant out to 10 side of wheel disc forms and first leans out portion 211, to 10 opposite side of wheel disc
The formation of portion 21 second that leans out leant out leans out portion 212, and the first length for leaning out portion 211 is greater than the second length for leaning out portion 212.This
Sample avoids the second too many space of occupancy for leaning out portion 212.
Optionally, it first leans out portion 211 and is set to blade 20 close to the position of wheel disc 10, second, which leans out portion 212, is set to
Position of the blade 20 far from wheel disc 10, the first length for leaning out portion 211 are greater than the second length for leaning out portion 212.In this way, avoiding
Two lean out the too many space of occupancy in portion 212, and air can be made to easily enter air inlet, increase the swing flap stress of blade 20.
Optionally, as shown in figure 11, a kind of centrifugal blower, comprising: wheel disc 10；The blade 20 being set on wheel disc 10, leaf
Piece 20 includes leaning out portion 21, leans out portion 21 and leans out to 10 opposite side of wheel disc.In this way, be conducive to increase blade 20 swing flap by
Power.
Optionally, it leans out portion 21 to lean out backwards to the axis of rotation of wheel disc 10, or leans out the direction that leans out in portion 21 and be directed toward rotation
Any position on axle center to the radius extended line between 10 circumference of wheel disc.In this way, contact of the blade 20 with air can be increased
Area.
Optionally, it leans out portion 21 and is set to blade 20 close to the position of wheel disc 10.Optionally, leaning out portion 21 is planar structure
Or curved-surface structure.
Optionally, blade 20 is one or more layers, wherein two layers or two layers or more of blade 20 is set to wheel disc 10
One or both sides.The blade 20 of centrifugal blower setting multilayer can also carry out air draught.
Optionally, the blade 20 being located on the same floor partly or entirely is provided with the portion of leaning out 21.Optionally, it is located on the same floor
The setting of the interval of blade 20 leans out portion 21.Optionally, 20 subregion of the blade setting being located on the same floor leans out portion 21.For example, by position
Divide in the blade 20 of same layer for multiple groups, the setting of blade 20 that part is organized leans out portion 21.In this way, being conducive to promote centrifugation wind
The air quantity and wind-force of machine.
Optionally, blade 20 is planar structure or curved-surface structure.
Fig. 2 is the side view for the centrifugal blower that the embodiment of the present disclosure provides；Fig. 3 is the portion the A enlarged drawing of Fig. 2.Optionally, such as
Shown in Fig. 1~3, the embodiment of the present disclosure provides a kind of centrifugal blower, comprising:
Wheel disc 10；The blade 20 being set on wheel disc, the portion of leaning out close to the blade position of wheel disc are to visit to wheel disc side
First is formed out and leans out portion 211, and the portion of leaning out at the blade position far from wheel disc is to lean out to form the second spy to wheel disc opposite side
Portion 212 out.
Optionally, blade 20 along wheel disc 10 circumferentially, second, which leans out portion 212, surrounds the first air inlet 31.
In this way, second leans out portion 212 wind is made to be easily accessible the first air inlet 31, swing flap stress is increased, blade is enhanced
20 acting ability, makes the air quantity of centrifugal blower and wind pressure become larger.
Optionally, multiple blades 20 along a side end face of wheel disc 10 circumferentially.Optionally, multiple blades 20 are along wheel disc
The axially spaced-apart of 10 side end face is arranged.Optionally, blade 20 is parallel to the axially extending of wheel disc 10.When blade 20 rotates
When, air-flow can be sucked from the first air inlet 31.
Optionally, as shown in Figure 1, 2, blade 20 is two layers and is respectively arranged at the both sides of the face of wheel disc 10.
Optionally, as shown in figure 9, blade 20 is two layers and is respectively arranged at the both sides of the face of wheel disc 10, every layer of blade is equal
Setting first leans out portion 211 and second and leans out portion 212.In this way, the second of the blade of a side end face lean out portion 212 surround first into
Air port 31, the blade 20 of another side end face surround the second air inlet 32.
In this way, making the two sides of wheel disc 10 can enter the wind, enhance the swing flap stress and acting ability of blade 20, make from
The air quantity and wind pressure of heart blower become larger.
Fig. 6 is the structural schematic diagram for the centrifugal blower that another open embodiment provides.As shown in fig. 6, centrifugal blower also wraps
Spiral case 40 is included, wheel disc 10 and blade 20 are set in spiral case 40.
Fig. 5 is the sectional side view at the position of the axis of Fig. 4 or more.As shown in figure 5, first leans out the channel that portion 211 surrounds
Radius be D1, the second radius for leaning out the channel surrounded in portion 212 is D2, D2=D1+ △ d, wherein △ d=3mm~10mm.
In this way, entering as shown in figure 4, being conducive to air-flow and leaning out portion 212 from second when blade 20 rotates, increasing centrifugation
The intake of blower.If △ d is less than 3mm, intake variation is unobvious, if △ d is greater than 10mm, will lead to centrifugal blower
Generate biggish noise.
Optionally, D2=D1+8mm.
Optionally, the length of blade 20 is L1, and the second length for leaning out portion 212 is L2, L2/L1=k, 1/3≤k≤1/2.
In this way, when blade 20 rotates, be conducive to air-flow and lean out portion 212 from second to enter, and increases the swing flap stress of blade 20, it can be with
Effectively promote the air quantity and wind pressure of centrifugal blower.
Optionally, as shown in Figure 10,11, the second established angle for leaning out portion 212 is β 2, and blade 20 is close to the position of wheel disc 10
Established angle be β 1,2 > β 1 of β.In this way, blade can be made more effectively to do work air.
Optionally, β 2=β 1+ △ β, wherein β=5 °~10 ° △.Optionally, β 2=β 1+8 °.In this way, being conducive to air-flow
Homogenize and increase the swing flap stress of blade.If △ β is less than 5 °, supercharging effect is not obvious enough；If △ β is greater than 10 °,
Have an adverse effect to air quantity.
Fig. 7 is the boost performance test result for the centrifugal blower that the embodiment of the present disclosure provides；Fig. 8 is that the embodiment of the present disclosure mentions
The consumption reduction the performance test results of the centrifugal blower of confession.Optionally, the centrifugal fan blade 20 of the application meets D2=D1+8mm, β 2
=β 1+8 °, L2/L1=1/3；In a comparative example, the D1=D2 of the blade 20 of centrifugal blower, β 2=β 1, to the embodiment
It is tested for the property with the centrifugal blower of comparative example, as shown in Figure 7,8, the maximum wind pressure of the centrifugal blower of the application is promoted about
12%, lower power consumption about 5% realizes the function of centrifugal blower pressurization consumption reduction.
Optionally, second lean out portion 212 and first lean out portion 211 junction be cut round-corner transition, sharping transition or
Right angle transition.
Figure 12 is the structural schematic diagram for the centrifugal blower that another open embodiment provides；As shown in figure 12, a kind of centrifugation wind
Machine, comprising: wheel disc 10；Along the multiple blades 20 of a side end face of wheel disc 10 circumferentially, blade 20 includes leaning out portion 21, is leant out
Portion 21 is leant out to 10 opposite side of wheel disc, is leant out portion 21 and is located at blade 20 close to the position of wheel disc 10.
When centrifugal blower operating, air-flow can be timely entered and be carried out between blade 20 after the entrance of the first air inlet 31
Acting avoids air-flow from generating crossing current phenomenon at the first air inlet 31.When crossing current phenomenon is centrifugal blower operating, locally there is air
Into air inlet, but does not timely enter between blade and do work after entrance air inlet, but along the side for being parallel to wheel disc axis
It enters back between blade and does work to flowing a distance.
In a comparative example, the width of blade 20 is uniform.When centrifugal blower operating when, air-flow from the first air inlet 31 into
After entering, the air-flow for being parallel to blade 20 is formd, after air-flow flows through a distance, just enters blade 20, in this case, gas
Stream fails to timely enter the acting of blade 20.
In addition, reflux can be generated between the blade 20 at the first air inlet 31 to avoid air-flow when centrifugal blower operating
Phenomenon.When backflow phenomenon is centrifugal blower operating, it may be that air enters between blade outflow on the outside of the backward inclined blade that does work, but portion
Divide air not flow out to blade outboard to be back between blade again.
In a comparative example, the width of blade 20 is uniform.When centrifugal blower operating, air-flow produces between blade 20
Backflow phenomenon affects effective acting of blade 20.
Through this embodiment, air-flow is made to be easily accessible the first air inlet 31, the swing flap stress enhancing of blade 20, effective use
The acting ability in the whole length direction of blade 20, finally improves the suction efficiency of centrifugal blower, can guarantee strong
The air quantity and wind pressure of strength.
Optionally, centrifugal blower further includes multiple blades 20 along another side end face of wheel disc 10 circumferentially, the blade
20 width is uniform.In this way, can reduce the second blade 20 to the occupancy of volume, and the swing flap stress of centrifugal blower is not influenced.
Figure 13 is Figure 12 wheel disc axis above section sectional side view.As shown in figure 13, along another side end face of wheel disc 10 week
The first impeller is surrounded to multiple blades 20 of arrangement, the outer radius of the first impeller is d1；The second impeller that portion 21 surrounds is leant out, the
The outer radius of two impellers is d2, d2 > d1.In the present embodiment, the first wheel rotation can also enter the wind.In this way, can be promoted from
The air quantity and wind pressure of heart blower, and wind wheel that blade 20 surrounds is minimized to the occupancy in space.
Optionally, the width positioned at the blade 20 in the portion that leans out 21 is h1,0≤d2-d1 < 2h1.In this way, can reduce blade
The occupancy of 20 pairs of volumes, and promote the air quantity and wind pressure of centrifugal blower.If d2-d1 > 2h1, the air quantity and wind pressure of centrifugal blower
It will be affected.Optionally, d2-d1=1/2h1.
Optionally, the part that do not lean out for being provided with the blade 20 in the portion of leaning out is original portion, and original portion surrounds the first air inlet
31, the outer radius of the first air inlet 31 is d3, and the width positioned at the blade 20 in the portion that leans out 21 is h1,0 < d2-d3≤h1.In this way,
When centrifugal blower operating, air-flow can be timely entered and be done work between blade 20, avoid after the entrance of the first air inlet 31
Air-flow generates crossing current phenomenon at the first air inlet 31, and air-flow is avoided to generate reflux between the blade 20 at the first air inlet 31
Phenomenon.Optionally, d2-d3=1/4h1.
Optionally, the entire length of blade 20 is s2, and the length of the blade 20 in original portion is s1,1/10≤s2/s1≤1/
2.In such manner, it is possible to the acting ability in 20 whole length direction of blade is efficiently used, the final suction efficiency for improving centrifugal blower.It can
Selection of land, s2/s1=0.2.
Figure 14 is the structural schematic diagram for the centrifugal blower that another open embodiment provides；Figure 15 is the rearview of Figure 14.Such as
Figure 14, shown in 15, centrifugal blower further includes the spiral case 40 covered at outside wheel disc 10, and the arcwall of spiral case 40 includes first being provide with
Portion 41 and second is provide with portion 42, and first, which is provide with portion 41, is arranged to be provide with the blade 20 of the side end face arrangement of wheel disc 10, and second
It is provide with portion 42 to be arranged to be provide with the blade 20 of another side end face arrangement of wheel disc 10, first is provide with portion 41 to 10 axis of wheel disc
Distance is greater than second and is provide with the distance that portion 42 arrives 10 axis of wheel disc.In this way, spiral case 40 can be mentioned effectively when centrifugal blower operating
Rise the wind pressure and air quantity of centrifugal blower.
Optionally, first it is provide with portion 41 and second to be provide with 42 position of portion corresponding.
Optionally, it first is provide with portion 41 and second and is provide with portion 42 occupies arcwall area 1/2~3/4.
Optionally, first portion 41 is provide at a distance from 10 axis of wheel disc as s4, second is provide with portion 42 and 10 axis of wheel disc
Distance is s3, s4-s3=[(d2-d1)/2] ± 5.The unit of d1 and d2 can be mm.
Optionally, d2-d1=1/2h1, s2/s1=0.2, d2-d3=1/4h1, s4-s3=(d2-d1)/2.It is right at one
In ratio, d1=d2=d3.The embodiment compares the centrifugal blower of comparative example, and maximum wind pressure promotes 1m3/min。
The embodiment of the present disclosure additionally provides a kind of electric appliance, the centrifugal blower provided including embodiment disclosed above.So set
It sets, the electric appliance that present embodiment provides, during operation, air quantity and wind pressure are larger for centrifugal blower.The beneficial effect
Derivation process and the derivation process of beneficial effect brought by above-mentioned centrifugal blower it is substantially similar, so it will not be repeated.
Optionally, electric appliance includes kitchen ventilator.The centrifugal blower is used in kitchen ventilator, since its air quantity and wind pressure are mentioned
It rises, when kitchen ventilator carries out suction wind, can be avoided the problem of smoke evacuation is unsmooth, smoke evacuation is flowed backward, the case where flue resistance increases
Under, it still being capable of effective suction wind.
Optionally, electric appliance includes gas heater.It, can when carrying out suction wind using the centrifugal blower in gas heater
Avoid the problem that unsmooth, smoke evacuation reverse irrigation of discharging fume, and in the case where flue resistance increases, it still being capable of effective suction wind.
Above description and attached drawing sufficiently illustrate embodiment of the disclosure, to enable those skilled in the art to practice
They.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment only represents
Possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can change.
The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The embodiment of the present disclosure
Range includes the entire scope of claims and all obtainable equivalents of claims.When for the application
When middle, although term " first ", " second " etc. may be used in this application to describe each element, these elements should not be by
To the limitation of these terms.These terms are only used to differentiate an element with another element.For example, not changing description
Meaning in the case where, first element can be called second element, and same, and second element can be called first element,
As long as " first element " that is occurred unanimously renames and " second element " occurred unanimously renames.First
Element and second element are all elements, but can not be identical element.Moreover, word used herein is only used for describing
Embodiment and it is not used in limitation claim.As used in the description in embodiment and claim, unless context
It clearly illustrates, otherwise "one" (a) of singular, "one" (an) and " described " (the) is intended to equally include plural shape
Formula.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method or equipment of element.Herein, what each embodiment stressed can be
With the difference of other embodiments, the same or similar parts in each embodiment can be referred to each other.Embodiment is disclosed
Method, product etc. for, if it is corresponding with method part disclosed in embodiment, related place may refer to method
Partial description.
In embodiments disclosed herein, disclosed method, product (including but not limited to device, equipment etc.) can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary.
Claims (9)
1. a kind of centrifugal blower characterized by comprising
Wheel disc；
The blade being set on the wheel disc, the blade include leaning out portion, and the direction that leans out for leaning out portion includes to described
Wheel disc side leans out and leans out to the wheel disc opposite side.
2. centrifugal blower according to claim 1, which is characterized in that the portion that leans out is visited to the axis of rotation of the wheel disc
Out or any position for leaning out direction and being directed toward on the axis of rotation to the radius between the wheel disc circumference for leaning out portion
It sets.
3. centrifugal blower according to claim 1, which is characterized in that the portion of leaning out is set to the blade close to described
It the position of wheel disc and is leant out to the wheel disc side and the portion of leaning out is set to position of the blade far from the wheel disc
And it is leant out to the wheel disc opposite side.
4. centrifugal blower according to claim 1, which is characterized in that the portion of leaning out that Xiang Suoshu wheel disc side is leant out forms the
One leans out portion, forms second to the portion of leaning out leant out with the wheel disc opposite side and leans out portion, described first leans out the length in portion
The length for leaning out portion greater than described second.
5. centrifugal blower according to claim 1, which is characterized in that the portion of leaning out is planar structure or curved-surface structure.
6. centrifugal blower according to any one of claim 1 to 5, which is characterized in that the blade is one layer or one layer
More than, wherein two layers or two layers or more of blade is set to the one or both sides of the wheel disc.
7. centrifugal blower according to claim 6, which is characterized in that the blade-section or whole being located on the same floor are set
Portion is leant out described in being equipped with.
8. centrifugal blower according to claim 1, which is characterized in that the blade is planar structure or curved-surface structure.
9. a kind of electric appliance, which is characterized in that including centrifugal blower such as described in any item of the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910255690.8A CN109944828A (en) | 2019-04-01 | 2019-04-01 | A kind of centrifugal blower and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910255690.8A CN109944828A (en) | 2019-04-01 | 2019-04-01 | A kind of centrifugal blower and electric appliance |
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| CN109944828A true CN109944828A (en) | 2019-06-28 |
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| CN201910255690.8A Pending CN109944828A (en) | 2019-04-01 | 2019-04-01 | A kind of centrifugal blower and electric appliance |
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| CN210068560U (en) * | 2019-04-01 | 2020-02-14 | 青岛海尔智能技术研发有限公司 | Centrifugal fan and electric appliance |
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