CN209278213U - Volute structure, centrifugal blower and new blower - Google Patents
Volute structure, centrifugal blower and new blower Download PDFInfo
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- CN209278213U CN209278213U CN201822019682.7U CN201822019682U CN209278213U CN 209278213 U CN209278213 U CN 209278213U CN 201822019682 U CN201822019682 U CN 201822019682U CN 209278213 U CN209278213 U CN 209278213U
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- 238000005119 centrifugation Methods 0.000 claims abstract description 38
- 238000005192 partition Methods 0.000 claims description 30
- 238000010276 construction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 13
- 238000002955 isolation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000001568 sexual effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
This disclosure relates to a kind of volute structure, centrifugal blower and new blower.For volute structure for installing centrifugation blade (210), volute structure (220) includes: spiral case ontology, has volute tongue (221) and spiral case air outlet (222)；With isolated part (500), inner wall in the spiral case air outlet (222) is set, for being at least partially isolated the recirculation zone close to the volute tongue (221) side and the outlet air region far from the volute tongue (221) side in the spiral case air outlet (222).The embodiment of the present disclosure can make wind noise be improved.
Description
Technical field
This disclosure relates to blower fan structure design field more particularly to a kind of volute structure, centrifugal blower and new blower.
Background technique
Fresh air machine can be followed by outdoor ozone input chamber, and by the outdoor air of the air of foul indoor discharge
Ring cleaning equipment.In order to realize the driving of air-flow, existing new blower generally uses forward centrifugal fan as power device.
Due to being equipped with the biggish components of windages such as filter in new blower, the full design pressure of centrifugal blower is corresponding more larger than also, needs
Will spiral case, fan blade blade profile etc. to centrifugal blower be specifically designed, be easy to appear that noise is big, lower tone asks in the design
Topic.
Summary of the invention
In view of this, the embodiment of the present disclosure provides a kind of volute structure, centrifugal blower and new blower, wind noise can be made
It is improved.
In one aspect of the present disclosure, a kind of volute structure is provided, for installing centrifugation blade, the volute structure packet
It includes:
Spiral case ontology has volute tongue and spiral case air outlet；With
The inner wall of the spiral case air outlet is arranged in isolated part, for being at least partially isolated in the spiral case air outlet
Recirculation zone close to the volute tongue side and the outlet air region far from the volute tongue side.
In some embodiments, the spiral case air outlet is according to the centrifugation blade on the extending direction of own axes
Both sides of the face mark off the firstth area between the projection of the both sides of the face in the projection of the outer transverse plane of the spiral case air outlet
Second area on the outside of domain, and the projection in the both sides of the face, the isolated part are located in the second area.
In some embodiments, one end of the isolated part is connect with the spiral case air outlet inner wall, and the other end is located at
On the interface of the first area and the second area.
In some embodiments, the isolated part includes:
First partition is arranged on the first inner wall of the spiral case air outlet；With
Second partition is arranged on the second inner wall of the spiral case air outlet；
Wherein, along the axis direction of the centrifugation blade, first inner wall is located at the opposite side of second inner wall.
In some embodiments, the first partition second partition vertical and/or described with first inner wall with it is described
Second inner wall is vertical.
In some embodiments, the first partition is generally aligned in the same plane with the second partition.
In some embodiments, the first partition and/or second partition are slab construction, S type structure or c-type structure.
In some embodiments, the isolated part is projected as in the plane of the axis perpendicular to the centrifugation blade
The endpoint of the side of first line segment, the center of circle of the volute tongue and outer transverse plane of first line segment far from the spiral case air outlet
Line and the first angle of first line segment be greater than 20 °, and less than 35 °.
In some embodiments, first angle is 25 °, 30 ° or 33 °.
In some embodiments, the isolated part is projected as in the plane of the axis perpendicular to the centrifugation blade
First line segment, it is parallel with the outer transverse plane of the spiral case air outlet on the periphery of the centrifugation blade, and close to the isolation part
The normal of part side be the first normal, intersection point of first normal on the periphery of the centrifugation blade perpendicular to it is described from
The side of subpoint and outer transverse plane of first line segment far from the spiral case air outlet in the plane of the axis of heart fan blade
The line of endpoint and the second angle of first normal be greater than 80 °, and less than 90 °.
In some embodiments, first angle is 84 °, 86 ° or 87 °.
In some embodiments, the isolated part is projected as in the plane of the axis perpendicular to the centrifugation blade
First line segment, the outer transverse plane of the spiral case air outlet are projected as in the plane of the axis perpendicular to the centrifugation blade
Two line segments, endpoint of first line segment close to the side of the outer transverse plane of the spiral case air outlet are located at the second line segment
Between position of the midpoint close to the volute tongue side 20mm and the position far from the volute tongue side 20mm.
In one aspect of the present disclosure, a kind of centrifugal blower is provided, comprising:
Centrifugation blade；With
Volute structure above-mentioned.
In one aspect of the present disclosure, a kind of new blower is provided, comprising:
Centrifugal blower above-mentioned.
Therefore, according to the embodiment of the present disclosure, by the way that isolated part is arranged in spiral case air outlet, to make to be at least partially isolated snail
Close to the recirculation zone of volute tongue side low pressure and far from the outlet air region of volute tongue side high pressure in shell air outlet, recirculating zone is changed
The Flow Field Distribution in domain and outlet air region makes the outlet air region of high pressure mobile to flange side, comes from using the dynamic pressure of centrifugal blower
The rebound air-flow of the changeover portion of flange presses to flange side by the high pressure in outlet air region, and rebound air-flow is made to be difficult to form spiral center,
Keep the outlet air of centrifugal blower more smooth and avoiding the generation of spiral air-flow in this way, between eliminating caused by spiral air-flow
Sexual abnormality of having a rest sound, so that wind noise be made to be improved.
Detailed description of the invention
The attached drawing for constituting part of specification describes embodiment of the disclosure, and together with the description for solving
Release the principle of the disclosure.
The disclosure can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 is the structural schematic diagram according to some embodiments of the new blower of the disclosure；
Fig. 2 is the structural schematic diagram according to some embodiments of disclosure centrifugal blower；
Fig. 3 is the local cutting schematic diagram of existing centrifugal blower example；
Fig. 4 is the boosting schematic diagram in existing centrifugal blower example inside spiral case；
Fig. 5 is the air-flow flow schematic diagram in existing centrifugal blower example inside spiral case；
Fig. 6 is the air-flow flow schematic diagram in some embodiments according to disclosure centrifugal blower inside spiral case；
Fig. 7 is the structural representation of the spiral case air outlet in some embodiments according to disclosure centrifugal blower in volute structure
Figure；
Fig. 8 is the parameter setting schematic diagram of isolated part in some embodiments according to disclosure centrifugal blower.
It should be understood that the size of various pieces shown in attached drawing is not to draw according to actual proportionate relationship.
In addition, same or similar reference label indicates same or similar component.
Specific embodiment
The various exemplary embodiments of the disclosure are described in detail now with reference to attached drawing.Description to exemplary embodiment
It is merely illustrative, never as to the disclosure and its application or any restrictions used.The disclosure can be with many differences
Form realize, be not limited to the embodiments described herein.These embodiments are provided so that the disclosure is thorough and complete, and
The scope of the present disclosure is given full expression to those skilled in the art.It should also be noted that unless specifically stated otherwise, otherwise in these implementations
Component and the positioned opposite of step, numerical expression and numerical value described in example should be construed as merely illustratively, without
It is as limitation.
" first ", " second " used in the disclosure and similar word are not offered as any sequence, quantity or again
The property wanted, and be used only to distinguish different parts.The similar word such as " comprising " or "comprising" means the element before the word
Cover the element enumerated after the word, it is not excluded that be also covered by the possibility of other element."upper", "lower", "left", "right" etc. are only used
In indicating relative positional relationship, after the absolute position for being described object changes, then the relative positional relationship may also be correspondingly
Change.
In the disclosure, when being described to certain device between the first device and the second device, in the certain device
There may be devices between two parties between the first device or the second device, and device between two parties can also be not present.When being described to specific device
When part connects other devices, which can be directly connected to without device between two parties with the other devices, can also be with
It is not directly connected to the other devices and there is device between two parties.
All terms (including technical term or scientific term) that the disclosure uses are common with disclosure fields
The meaning that technical staff understands is identical, unless otherwise specifically defined.It is also understood that in term such as defined in the general dictionary
The meaning consistent with their meanings in the context of the relevant technologies should be interpreted as having, without application idealization or
The meaning of extremely formalization explains, unless being clearly defined herein.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
As shown in Figure 1, the structural schematic diagram of some embodiments for the new blower of the disclosure.With reference to Fig. 1, in some embodiments
In, new blower may include casing 100, filter 300 and centrifugal blower 200.Casing 100 is equipped with the inlet and outlet of air-flow, mistake
Filter 300 is arranged in casing 100, and is located between the inlet and outlet of air-flow.Centrifugal blower 200 be located at filter 300 with
Between the outlet of air-flow, it is capable of providing the power of guidance air-flow flowing (referring to the arrow for indicating air-flow).
The structure of centrifugal blower 200 can refer to Fig. 2, and in some embodiments, centrifugal blower 200 includes volute structure 220
With centrifugation blade 210.Centrifugation blade 210 is arranged inside volute structure 220, can be in motor or other driving parts such as liquid
Pressure motor or air motor etc. are rotated by.In order to dock centrifugal blower 200 with external pipeline, in spiral case knot
Flange 400 is equipped at the spiral case air outlet 222 of structure 220, flange 400 connects spiral case air outlet 222 and external pipe.
As shown in figure 3, being the local cutting schematic diagram of existing centrifugal blower example.In Fig. 3, due to exterior tube Dow process
There are changeover portions 410 with the place of docking of spiral case air outlet 222 for blue 400 inner walls.The changeover portion 410 can in volute structure 220 to
The air-flow of outer flowing, which is formed, to be stopped, and fraction is caused to be forced to flow back and form spiral air-flow.With reference to Fig. 4, from volute structure 220
Volute tongue 221 at start, along booster line BL boost to gradually volute structure 220 export, with volute tongue 221 be the vertical outlet air side of baseline
To position, formed two at pressure area.Using close 200 snail molded line side of centrifugal blower as higher-pressure region A (i.e. outlet air region), to lean on
Nearly 221 side of volute tongue is low-pressure area B (i.e. recirculation zone).Based on pneumatic pressure design is centrifuged out, the air-flow of higher-pressure region A blows to flange
400, fraction therein can flow back into 210 inside of centrifugation blade and recirculation zone under the suction of low-pressure area B.
For using the centrifugal blower 200 on new blower, since the resistances such as strainer are there are negative pressure in machine is larger, blower goes out
Resistance is overcome to need needed for wind larger.With reference to Fig. 5, if outlet air dynamic pressure is insufficient when centrifugal blower 200 designs, in higher-pressure region A
Air-flow in have fraction that can flow back into 221 region of volute tongue low-pressure area B, formed spiral air-flow C.Spiral air-flow C is in high pressure
The lower rotation of the tangentially effect of taking out of of the outlet air air-flow of area A falls off, and intermittent abnormal sound will be generated by being repeated cyclically this process.
By above-mentioned analysis, inventor has found that noise volume and sound quality of centrifugal blower 200 etc. are exported with volute structure 220
There are certain associations by the spiral air-flow C at place, therefore so that wind noise is changed by the volute structure 220 of the design disclosure
It is kind.
As shown in fig. 6, the structural schematic diagram of some embodiments for disclosure centrifugal blower 200.In centrifugal blower 200
Volute structure 220 can be used for installing centrifugation blade 210.Volute structure 220 includes: spiral case ontology and isolated part 500.Spiral case
Ontology has volute tongue 221 and spiral case air outlet 222.The inner wall of the spiral case air outlet 222 is arranged in isolated part 500, is used for
It is at least partially isolated in the spiral case air outlet 222 close to the recirculation zone of 221 side of volute tongue and far from the volute tongue 221
The outlet air region of side.
In the present embodiment, by the way that isolated part 500 is arranged in spiral case air outlet 222, spiral case air outlet 222 is enabled to
In close to 221 side of volute tongue recirculation zone (i.e. low-pressure area B) and far from 221 side of volute tongue outlet air region (i.e. higher-pressure region A)
It is at least partially isolated, changes the Flow Field Distribution of recirculation zone and outlet air region.Comparison diagram 5 and Fig. 6, higher-pressure region A every
It is mobile to 400 side of flange under the action of component 500, and improve the pressure of higher-pressure region A.Changeover portion from flange 400
410 rebound air-flow presses to flange 400 by the high pressure in outlet air region, and rebound air-flow is made to be difficult to form spiral center.In this way, passing through
It avoids the generation of spiral air-flow and keeps the outlet air of centrifugal blower more smooth, eliminate interval sexual abnormality caused by spiral air-flow
Sound, so that wind noise be made to be improved.
In addition, passing through the buffer action of isolation structure 500, so that the reflux on front side of the A of higher-pressure region is not easy to be drawn onto low pressure
Area B increases the air-flow for flowing to flange to reduce reflux airflow, thus compared to the centrifugation for being not provided with isolation structure 500
The air quantity of blower, the centrifugation wind of the embodiment of the present disclosure is bigger.In some l-G simulation tests, setting isolation structure 500 can be used
The air quantity of wind is big by 1.3%.
As shown in fig. 7, being the spiral case air outlet in some embodiments according to disclosure centrifugal blower in volute structure
Structural schematic diagram.In Fig. 7, in some embodiments, the spiral case air outlet 222 is according to the centrifugation blade 210 at itself
Both sides of the face on the extending direction of axis mark off described in the projection of the outer transverse plane 222a of the spiral case air outlet 222
First area A1 between the projection of the both sides of the face of centrifugation blade 210, and the both sides of the face in the centrifugation blade 210
Projection on the outside of second area A2 and A3.
With reference to Fig. 7, in some embodiments, the isolated part 500 can be arranged in the second area A2 and A3.
Since 210 positive effect of centrifugation blade is in first area A1, the isolated part 500, which is arranged outside the A1 of first area, be can avoid
Isolated part 500 generates extraordinary noise under the impact of outlet air.
In order to eliminate the influence of rebound air-flow as far as possible, preferably make one end of the isolated part 500 and the spiral case outlet air
The inner wall connection of mouth 222, the other end are located on the interface of the first area A1 and second area A2 and A3.
In order to avoid the rebound air-flow of second area A2 and A3 form spiral air-flow, in Fig. 7, isolated part 500 can be wrapped
Include first partition 510 and second partition 520.The first inner wall of the spiral case air outlet 222 is arranged in first partition 510.Second
The second inner wall 222b of the spiral case air outlet 222 is arranged in partition 520.First inner wall is in the position being blocked in Fig. 7,
It is located at the opposite side of the second inner wall 222b along the axis direction of the centrifugation blade 210.
In some embodiments, first partition 510 can be made vertical with first inner wall.It can also make the second partition
520 is vertical with the second inner wall 222b.In further embodiments, first partition 510 or second partition 520 can also be relative to
Its inner wall connected is obliquely installed.
In some embodiments, the first partition 510 can be generally aligned in the same plane with the second partition 520.Another
In a little embodiments, it is also disposed at Different Plane, to meet different field requirements.Additionally, it is preferred that first partition 510 and/or
Two partitions 520 are slab construction, and from simulation calculation angle analysis, the partition of this structure can make air-flow cutting separation more flat
Surely, it is not easy to generate noise.And in further embodiments, it may be designed in S type structure, c-type structure or other structures shape
The partition of state.
As shown in figure 8, being the parameter setting schematic diagram of isolated part in some embodiments according to disclosure centrifugal blower.
Isolated part 500 is projected as the first line segment CD in the plane of the axis Ax perpendicular to the centrifugation blade 210.First line segment
The endpoint of the side of outer transverse plane 222a far from the spiral case air outlet 222 is C, close to the outer of the spiral case air outlet 222
The endpoint of the side of transverse plane 222a is D.On the periphery of centrifugation blade 210 with the outer transverse plane of the spiral case air outlet 222
222a is parallel, and is the first normal N close to the normal of 500 side of isolated part.First normal N is in the centrifugation blade
There is intersection point E on 210 periphery.The outer transverse plane 222a of spiral case air outlet 222 is in the axis perpendicular to the centrifugation blade 210
Second line segment EF is projected as in the plane of Ax.
With reference to Fig. 8, in some embodiments, the line of the center of circle O and endpoint C of volute tongue 221 are with the first line segment CD's
First angle β is preferably greater than 20 °, and less than 35 °.First angle β is more preferably 25 °, 30 ° or 33 °.Intersection point E is hanging down
Directly in the line and the second of first normal N of subpoint and endpoint C in the plane of the axis Ax of the centrifugation blade 210
Angle α is greater than 80 °, and less than 90 °.Second angle α is more preferably 84 °, 86 ° or 87 °.By selecting suitable angle
On the one hand the numberical range of α and β can enable isolation structure 500 separate higher-pressure region A and low-pressure area B, avoid higher-pressure region A
It is too small and be difficult to achieve the effect that eliminate spiral air-flow, to be difficult to abnormal sound caused by eliminating spiral air-flow, on the other hand
Also it can be avoided the obvious dissection to be formed to air-flow, to eliminate because of noise caused by cutting steam.
In fig. 8, endpoint D is preferably provided at the midpoint of the second line segment EF, also can be set centered on midpoint
Between the position of the one side length c of volute tongue and the position of the separate one side length c of volute tongue, c is preferably 20mm.Pass through
The setting position of selection endpoint D can make isolation structure 500 be effectively isolated higher-pressure region A and low-pressure area D without generating vortex gas
Stream.
So far, the presently disclosed embodiments is described in detail.In order to avoid covering the design of the disclosure, do not describe
Some details known in the field.Those skilled in the art as described above, completely it can be appreciated how implement here
Disclosed technical solution.
Although being described in detail by some specific embodiments of the example to the disclosure, the skill of this field
Art personnel it should be understood that above example merely to be illustrated, rather than in order to limit the scope of the present disclosure.The skill of this field
Art personnel it should be understood that can not depart from the scope of the present disclosure and spirit in the case where, modify to above embodiments or
Some technical features can be equivalently replaced.The scope of the present disclosure is defined by the following claims.
Claims (13)
1. a kind of volute structure (220), for installing centrifugation blade (210) characterized by comprising
Spiral case ontology has volute tongue (221) and spiral case air outlet (222)；With
Isolated part (500) is arranged the inner wall in the spiral case air outlet (222), goes out for being at least partially isolated the spiral case
Recirculation zone close to the volute tongue (221) side and the outlet air region far from the volute tongue (221) side in air port (222)；
Wherein, the isolated part (500) includes:
First partition (510) is arranged on the first inner wall of the spiral case air outlet (222)；With
Second partition (520) is arranged on the second inner wall (222b) of the spiral case air outlet (222)；
Wherein, along the axis direction of the centrifugation blade (210), first inner wall is located at pair of second inner wall (222b)
Side.
2. volute structure (220) according to claim 1, which is characterized in that the spiral case air outlet (222) is according to described
Outer transverse plane of both sides of the face of the centrifugation blade (210) on the extending direction of own axes in the spiral case air outlet (222)
The projection of (222a) marks off the first area (A1) between the projection of the both sides of the face, and is in the both sides of the face
Projection on the outside of second area (A2, A3), the isolated part (500) is located in the second area (A2, A3).
3. volute structure (220) according to claim 2, which is characterized in that one end of the isolated part (500) and institute
The connection of spiral case air outlet (222) inner wall is stated, the other end is located at the boundary of the first area (A1) and the second area (A2)
On face.
4. volute structure (220) according to claim 1, which is characterized in that the first partition (510) and described first
Inner wall is vertical and/or the second partition (520) is vertical with the second inner wall (222b).
5. volute structure (220) according to claim 1, which is characterized in that the first partition (510) and described second
Partition (520) is generally aligned in the same plane.
6. volute structure (220) according to claim 1, which is characterized in that the first partition (510) and/or second
Partition (520) is slab construction, S type structure or c-type structure.
7. volute structure (220) according to claim 1, which is characterized in that the isolated part (500) is perpendicular to institute
It states and is projected as the first line segment (CD) in the plane of the axis (Ax) of centrifugation blade (210), the center of circle (O) of the volute tongue (221)
The company of the endpoint (C) of the side of outer transverse plane (222a) with first line segment (CD) far from the spiral case air outlet (222)
Line and the first angle of first line segment (CD) are greater than 20 °, and less than 35 °.
8. volute structure (220) according to claim 7, which is characterized in that first angle is 25 °, 30 ° or 33 °.
9. volute structure (220) according to claim 1, which is characterized in that the isolated part (500) is perpendicular to institute
State and be projected as the first line segment (CD) in the plane of the axis of centrifugation blade (210), on the periphery of the centrifugation blade (210) with
The outer transverse plane (222a) of the spiral case air outlet (222) in parallel, and is the close to the normal of the isolated part (500) side
One normal (N), intersection point (E) of first normal (N) on the periphery of the centrifugation blade (210) is perpendicular to the centrifugation
Subpoint and first line segment (CD) in the plane of the axis (Ax) of fan blade (210) is far from the spiral case air outlet (222)
Outer transverse plane (222a) side the line of endpoint (C) and the second angle of first normal (N) be greater than 80 °, and it is small
In 90 °.
10. volute structure (220) according to claim 9, which is characterized in that second angle be 84 °, 86 ° or
87°。
11. volute structure (220) according to claim 1, which is characterized in that the isolated part (500) perpendicular to
It is projected as the first line segment (CD) in the plane of the axis (Ax) of the centrifugation blade (210), the spiral case air outlet (222)
Outer transverse plane (222a) is projected as second line segment in the plane of the axis (Ax) perpendicular to the centrifugation blade (210)
(EF), the position endpoint (D) of first line segment (CD) close to the side of the outer transverse plane (222a) of the spiral case air outlet (222)
In position of the midpoint of the second line segment (EF) close to the volute tongue side 20mm and the position far from the volute tongue side 20mm
Between setting.
12. a kind of centrifugal blower (200) characterized by comprising
Centrifugation blade (210)；With
Any volute structure (220) of claim 1~11.
13. a kind of new blower characterized by comprising centrifugal blower described in claim 12 (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822019682.7U CN209278213U (en) | 2018-12-04 | 2018-12-04 | Volute structure, centrifugal blower and new blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822019682.7U CN209278213U (en) | 2018-12-04 | 2018-12-04 | Volute structure, centrifugal blower and new blower |
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| Publication Number | Publication Date |
|---|---|
| CN209278213U true CN209278213U (en) | 2019-08-20 |
Family
ID=67609714
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822019682.7U Withdrawn - After Issue CN209278213U (en) | 2018-12-04 | 2018-12-04 | Volute structure, centrifugal blower and new blower |
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| Country | Link |
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| CN (1) | CN209278213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322855A (en) * | 2018-12-04 | 2019-02-12 | 珠海格力电器股份有限公司 | Volute structure, centrifugal blower and new blower |
| CN111811117A (en) * | 2020-07-17 | 2020-10-23 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
-
2018
- 2018-12-04 CN CN201822019682.7U patent/CN209278213U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322855A (en) * | 2018-12-04 | 2019-02-12 | 珠海格力电器股份有限公司 | Volute structure, centrifugal blower and new blower |
| CN109322855B (en) * | 2018-12-04 | 2024-05-28 | 珠海格力电器股份有限公司 | Volute structure, centrifugal fan and new fan |
| CN111811117A (en) * | 2020-07-17 | 2020-10-23 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
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| GR01 | Patent grant | ||
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Granted publication date: 20190820 Effective date of abandoning: 20240528 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190820 Effective date of abandoning: 20240528 |