CN209494766U - A kind of spiral case air-ducting ring, spiral case and smoke exhaust ventilator - Google Patents
A kind of spiral case air-ducting ring, spiral case and smoke exhaust ventilator Download PDFInfo
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- CN209494766U CN209494766U CN201920175609.0U CN201920175609U CN209494766U CN 209494766 U CN209494766 U CN 209494766U CN 201920175609 U CN201920175609 U CN 201920175609U CN 209494766 U CN209494766 U CN 209494766U
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- ducting ring
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Abstract
The utility model provides a kind of spiral case air-ducting ring, spiral case and smoke exhaust ventilator, the spiral case air-ducting ring structure annular in shape, the spiral case air-ducting ring includes an extension, the extending part is at the air guide hole of the spiral case air-ducting ring, the longitudinal section of the extension is two straightways, the straightway extends along air inlet direction, and the extension is suitable for the wind wheel center that guidance oil smoke in the assembled condition enters the spiral case.Extension is equipped at the air guide hole of spiral case air-ducting ring described in the utility model reduces air inlet noise so that air-ducting ring wind-guiding is more smooth；Meanwhile the setting of extension not only reduces the air intake resistance of air-ducting ring, also makes the integral structure manufacturing process of air-ducting ring more preferable, it is easy to process.
Description
Technical field
The utility model relates to smoke exhaust ventilator field, in particular to a kind of spiral case air-ducting ring, spiral case and smoke exhaust ventilator.
Background technique
Smoke exhaust ventilator is made of exhaust fume collecting hood and bellows, and spiral case is installed in bellows, installs wind wheel, spiral case air inlet in spiral case
Air-ducting ring is installed, air-ducting ring is mainly used for reducing under the excessively high situation of common flue wind pressure generated return air to smoke exhaust ventilator
The negative effect of smoking effect, and external oil smoke is guided to enter spiral case.
But it is only that one section of arc surface has when oil smoke enters inside spiral case from the arc surface that the inner ring of existing air-ducting ring, which is,
A part of air-flow is easy to deviate air inlet direction in the edge of arc surface, so that air-ducting ring air inlet is not smooth enough, generates more make an uproar
Sound.
Utility model content
In view of this, the utility model is directed to a kind of spiral case air-ducting ring, when solving existing air-ducting ring air inlet not
It is enough smooth, lead to the problem of more noise.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of spiral case air-ducting ring, structure annular in shape, the spiral case air-ducting ring include an extension, the extending part in
At the air guide hole of the spiral case air-ducting ring, the longitudinal section of the extension is two straightways, and the straightway is along air inlet direction
Extend, the extension is suitable for the wind wheel center that guidance oil smoke in the assembled condition enters the spiral case.
Further, the diameter of section of the extension successively decreases along air inlet direction.
Further, the spiral case air-ducting ring further includes side plate bending, and the side plate bending is connected as one with the extension
Formula is fixedly connected.
Further, the longitudinal section of the side plate bending is arc, and the side plate bending is by leeward the one of the spiral case air-ducting ring
Side is raised towards air inlet side.
Further, the side plate bending and the extension are tangent.
Further, the spiral case air-ducting ring further includes a planar section, and the planar section and the side plate bending are connected as one
Body formula is fixedly connected, and the planar section is fixedly connected with the spiral case in the assembled condition.
Further, the height of projection of the side plate bending is higher than the planar section.
Further, at least provided with two mounting holes, week of the mounting hole in the planar section on the planar section
It is uniformly arranged upwards.
Further, flanging is equipped at the outer rim of the planar section, the flanging is located at the air inlet of the spiral case air-ducting ring
Side.
Further, the side plate bending is connected smoothly with the planar section.
Further, the extension, the side plate bending and the planar section are sequentially connected integrated.
Compared with the existing technology, spiral case air-ducting ring described in the utility model has the advantage that
(1) extension is equipped at the air guide hole of spiral case air-ducting ring described in the utility model, so that air-ducting ring wind-guiding is more
It is smooth, reduce air inlet noise；Meanwhile the setting of extension not only reduces the air intake resistance of air-ducting ring, also makes air-ducting ring
Integral structure manufacturing process it is more preferable, it is easy to process；
(2) height of projection of the side plate bending of spiral case air-ducting ring described in the utility model is higher than the planar section of air-ducting ring, into
It, can be with planar section and spiral case when entering the oil smoke in smoke exhaust ventilator bellows and being inhaled into spiral case under the water conservancy diversion of side plate bending
Front apron shape is at a certain angle, reduces the area that oil smoke is contacted with planar section and spiral case front side board, and then reduce flat
The area of greasy dirt is formed on the front side board of face section and spiral case.
The another object of the utility model is to propose a kind of spiral case, not suitable enough when solving existing air-ducting ring air inlet
Freely, more noise is led to the problem of.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of spiral case includes any of the above-described spiral case air-ducting ring.
Possessed advantage is identical compared with the existing technology with above-mentioned spiral case air-ducting ring for the spiral case, and details are not described herein.
The another object of the utility model is to propose a kind of smoke exhaust ventilator, inadequate when solving existing air-ducting ring air inlet
It is smooth, lead to the problem of more noise.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of smoke exhaust ventilator includes any of the above-described spiral case.
Possessed advantage is identical compared with the existing technology with above-mentioned spiral case for the smoke exhaust ventilator, and details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the structural schematic diagram of spiral case air-ducting ring in the utility model embodiment；
Fig. 2 is the longitudinal sectional view of spiral case air-ducting ring in the utility model embodiment；
Fig. 3 is the partial enlarged view in Fig. 2 at A.
Description of symbols:
1- air-ducting ring, 11- extension, 12- side plate bending, 13- planar section, 131- mounting hole, 132- flanging, 14- air guide hole.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be noted that term " on ", "lower", "left", "right", "high", " low " etc.
The direction of instruction or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description the utility model
It is described with simplifying, rather than the device of indication or suggestion meaning must have a particular orientation, be constructed and be grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The utility model be spiral case air-ducting ring 1 (hereinafter referred to as air-ducting ring 1) inner ring be only one section of arc surface basis
On, an extension 11 is added in the side not connecting with other component on the arc surface, and the longitudinal section of extension 11 is two
Straightway.
Embodiment 1
The present embodiment provides a kind of spiral case air-ducting ring, structure annular in shape, spiral case air-ducting ring 1 includes an extension 11, is prolonged
Extending portion 11 is located at the air guide hole 14 of spiral case air-ducting ring 1, and the longitudinal section of extension 11 is two straightways, and straightway is along air inlet side
To extension, extension 11 is suitable for the wind wheel center that guidance oil smoke in the assembled condition enters spiral case.
As shown in connection with fig. 1, axially disposed in air-ducting ring 1 to have perforative round air guide hole 14, oil smoke is upper from air-ducting ring 1
End enters in air guide hole 14, and enters inside spiral case from the lower end of air-ducting ring 1, herein, in order to make it easy to understand, by wind-guiding
The upper end of circle 1 is as inlet side, and the lower end of air-ducting ring is as air side；Extension 11 is ring structure, and longitudinal section is two
The straightway extended along air inlet direction, it is to be understood that air-ducting ring 1 is usually thin-slab structure, in the vertical of description extension 11
When cross sectional shape, in order to make it easy to understand, the thickness of air-ducting ring 1 is ignored, the longitudinal section of extension 11 is just two at this time
Straightway, but in practice, the trapezoidal or parallelogram that the longitudinal section of extension 11 should be extremely narrow for two width is trapezoidal or flat
The width of row quadrangle refers to the vertical range in trapezoidal or parallelogram between two sides parallel to each other, wherein prolongs
The longitudinal section of extending portion 11 is along the surface exposed after the cutting of the axis direction of extension 11.
In this way, compared with prior art, the setting of extension 11 reduces air inlet so that 1 wind-guiding of air-ducting ring is more smooth
Noise；Meanwhile the setting of extension 11 not only reduces the air intake resistance of air-ducting ring, also makes the overall structure work of air-ducting ring 1
Skill is more preferable, easy to process.
Embodiment 2
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the extension 11 in the present embodiment
Diameter of section along air inlet direction successively decrease.
As shown in connection with fig. 1, extension 11 is in coniform, and biggish one end is located at the inlet side of air-ducting ring 1, and lesser one
End is located at the air side of air-ducting ring 1, wherein the section of extension 11 refers to cutting off along the direction perpendicular to 11 axis of extension
When the surface exposed.
In this way, oil smoke can be in the wind wheel for flowing to spiral case under the water conservancy diversion of extension 11 when entering air-ducting ring 1 from air guide hole 14
The heart, wind-guiding is more smooth, wind effect more preferably；And oil smoke is flowed into from biggish one end of extension 11, from lesser one end
Outflow, is also less likely to occur to flow back.
Optionally, the diameter of section of extension 11 is incremented by along air inlet direction.That is, the biggish one end of extension 11 position
In the air side of air-ducting ring 1, lesser one end is located at the inlet side of air-ducting ring 1.
In this way, oil smoke flows into spiral case under the guide functions of extension 11, wind-guiding is more smooth, wind effect more preferably；
Moreover, extension 11 can hinder to enter the oil smoke inside spiral case from air guide hole after oil smoke is flowed out from the biggish one end of extension 11
14 flow back away, to effectively prevent oil smoke from backflow phenomenon occurs.
Optionally, the diameter of section of extension 11 is remained unchanged along air inlet direction.That is, extension 11 is in cylinder
Shape.
In this way, oil smoke flows into spiral case under the guide functions of columned extension 11, wind-guiding is more smooth, wind-guiding is imitated
Fruit is more preferably；Moreover, oil smoke along extension 11 enter spiral case along after be also less likely to occur backflow phenomenon.
Embodiment 3
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the spiral case wind-guiding in the present embodiment
Circle 1 further includes side plate bending 12, and side plate bending 12 and conical surface section 11 are connected as one formula.
As shown in connection with fig. 1, side plate bending 12 is also in circular ring shape, and the axis of annulus is the axis of side plate bending 12, side plate bending 12
One end and extension 11 on close to one end of 1 inlet side of air-ducting ring be connected as one formula, this integral type, which can be, passes through welding
One is formed, is also possible to the integrated molding in casting, enhances the integral strength of air-ducting ring 1.
Embodiment 4
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the side plate bending 12 in the present embodiment
Longitudinal section be arc, side plate bending 12 by spiral case air-ducting ring 1 leeward side towards air inlet side protrusion.
As shown in connection with fig. 1, the upper and lower direction in figure is the axis direction and side plate bending of circular ring shape side plate bending 12
12 longitudinal direction, the longitudinal section of side plate bending 12 refer to the surface exposed after the cutting of the plane of its axis, that is to say, that
The axis of side plate bending 12 is located on the longitudinal section.As shown in connection with fig. 2, side plate bending 12 is to be somebody's turn to do similar to bell-mouthed arc structure
The arc of arc structure is arched upward by the leeward side of air-ducting ring 1 towards air inlet side or protrusion, wherein the air inlet side of air-ducting ring 1
Refer to the upper surface of air-ducting ring 1 in Fig. 1, and leeward side refers to the lower end surface of air-ducting ring 1 in Fig. 1；Side plate bending 12 is indulged
Section can be to be made of one section of circular arc, is formed arc-shaped longitudinal section, is also possible to by one section of elliptic arc or multistage elliptic arc
Or multi-section circular arc is constituted, and forms arc longitudinal section.
In this way, the resistance that oil smoke is subject to when entering from air guide hole 14 is smaller, can make in the water conservancy diversion of 12 arc surface of side plate bending
More smoothly enter inside spiral case from air-ducting ring 1 under, improves the wind effect of air-ducting ring 1；In addition, when the wind in spiral case
When wheel is double air inlets, the volume of wind wheel can be bigger, and the outer edge of wind wheel can be closer to the edge of air guide hole 14, also at this time
It is to say that the distance between the outer edge of wind wheel and the edge of air guide hole 14 can be smaller, and the setting of side plate bending 12 then increases wind wheel
Outer edge and air guide hole 14 the distance between edge, so as to effectively avoid wind wheel edge and air-ducting ring 1 occur
Collision；Moreover, the side plate bending 12 of arc-shaped can allow air-ducting ring 1 air guide hole 14 preferably with the air inlet edge mate of spiral case
Installation, convenient for assembly, so that air-ducting ring 1 can also have certain aesthetics while guaranteeing that air inlet is smooth.
Optionally, side plate bending 12 is formed by one end outward flanging on extension 11 close to 1 inlet side of air-ducting ring.Processing
Simply, convenient for manufacture.
Further, the axis of the axis with extension 11 of side plate bending 12 is overlapped, in this way, the structure of air-ducting ring 1 is more simple
Single, easy to process, wind effect is more preferable.
Embodiment 5
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the side plate bending 12 in the present embodiment
It is tangent with extension 11.That is, the junction of side plate bending 12 and extension 11 is smooth and without sharp edge, so that oil smoke is from leading
It is more smooth inside the entrance spiral case of solar or lunar halo 1, further improve the wind effect of air-ducting ring 1；And side plate bending 12 and extension
The 11 tangent manufacture crafts for making air-ducting ring 1 are simpler, easy to accomplish, while also reducing manufacturing cost.
Embodiment 6
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the spiral case wind-guiding in the present embodiment
Circle 1 further includes a planar section 13, and planar section 13 and side plate bending 12 are connected as one formula, planar section 13 in the assembled condition with spiral case
It is fixedly connected.
As shown in connection with fig. 1, planar section 13 is also in circular ring shape, and one end of side plate bending 12 connect with extension 11, the other end and
Planar section 13 is connected as one formula, this integral type, which can be, forms one by welding, is also possible to the integrated molding in casting.
Planar section 13 and the integral structure of side plate bending 12 enhance the integral strength of air-ducting ring 1, while reducing secondary peace
Dress reduces cost, and by the way that planar section 13 to be fixed on spiral case, realize being fixedly connected between air-ducting ring 1 and spiral case.
Embodiment 7
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the side plate bending 12 in the present embodiment
Height of projection be higher than planar section 13.
When user uses smoke exhaust ventilator, using the side stood on spiral case close to user as the front side of spiral case, on the contrary,
The air inlet of rear side of the side to be opposed with front side as spiral case, spiral case is located on the front side board of spiral case, and air-ducting ring 1 is installed
It is then fixed on the front side board of spiral case in the planar section 13 of the air inlet of spiral case, air-ducting ring 1.
The height of projection of side plate bending 12 is set above planar section 13, in this way, into the oil smoke in smoke exhaust ventilator bellows
When being inhaled into spiral case under the water conservancy diversion of side plate bending 12, certain folder can be formed with the front apron of planar section 13 and spiral case
Angle reduces the area that oil smoke is contacted with planar section 13 and spiral case front side board, and then reduces planar section 13 and spiral case
The area of greasy dirt is formed on front side board.
Embodiment 8
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, as shown in connection with fig. 1, the present embodiment
In planar section 13 at least provided with two mounting holes 131, mounting hole 131 is uniformly arranged in the circumferential direction of planar section 13.
In this way, the fixed company by being screwed into fastening screw at mounting hole 131, between Lai Shixian planar section 13 and spiral case
It connects, to realize that the installation between air-ducting ring 1 and spiral case is fixed；Multiple mounting holes 131 being uniformly arranged provide multiple fixations
Point, so that the fixation between air-ducting ring 1 and spiral case is more stable and secured.
Further, planar section 13 is equipped with location hole (not providing in figure), and the quantity of location hole and position can be according to realities
Border situation is configured, to facilitate the installation of air-ducting ring 1.
Embodiment 9
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the planar section 13 in the present embodiment
Outer rim at be equipped with flanging 132, flanging 132 is located at the air inlet side of spiral case air-ducting ring 1.
In conjunction with shown in Fig. 1 and Fig. 3, flanging 132 is arranged perpendicular to planar section 13, and flanging 132 is located at the air inlet of air-ducting ring 1
The upper end of air-ducting ring 1 in side, that is, figure.
The generally thin-slab structure of air-ducting ring 1, this to form sharp edge at the outer rim of planar section 13, and flanging 132 is arranged then
It can avoid during assembling smoking smoke machine, the outer edge of planar section 13 causes to hurt to operator, reduces air-ducting ring 1 and exists
Security risk in assembly or handling process, meanwhile, the grasping of air-ducting ring 1 is also more convenient provided with flanging 132；In addition, flanging
132 setting also improves the intensity of 13 outer rim of planar section, so that the outer rim of planar section 13 is less likely to occur when being collided
Fracture or damage, extend the service life of air-ducting ring 1.
Embodiment 10
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, the side plate bending 12 in the present embodiment
It is connected smoothly with planar section 13.
In this way, reducing the concentrated stress of side plate bending 12 Yu 13 junction of planar section, so that side plate bending 12 and planar section 13
Connection it is more secured, the integral strength of air-ducting ring 1 is improved, to also extend the service life of air-ducting ring 1.
Further, the junction rounded corner of side plate bending 12 and planar section 13 forms arc surface and is connected smoothly.
Embodiment 11
Spiral case air-ducting ring as described above, the present embodiment are different from place and are, extension 11 in the present embodiment,
Side plate bending 12 and planar section 13 are sequentially connected integrated.
In this way, air-ducting ring 1 is an integral structure, structure is simple, easy to produce, and the whole intensity of air-ducting ring 1 is also more
It is high.
Embodiment 12
The present embodiment provides a kind of spiral cases, not smooth enough when solving existing air-ducting ring air inlet, generate more noise
Problem, the technical solution of use are as follows: include any of the above-described spiral case air-ducting ring.
Spiral case in the present embodiment at the air guide hole 14 of air-ducting ring 1 by being arranged extension 11, so that 1 wind-guiding of air-ducting ring
It is more smooth, reduce air inlet noise；Meanwhile the setting of extension 11 not only reduces the air intake resistance of air-ducting ring, also makes
The integral structure manufacturing process of air-ducting ring 1 is more preferable, easy to process；And the height of projection of the side plate bending 12 in air-ducting ring 1 is higher than wind-guiding
The planar section 13 of circle 1, this is inhaled into the oil smoke entered in smoke exhaust ventilator bellows in spiral case under the water conservancy diversion of side plate bending 12
When, it can be at a certain angle with the front apron shape of planar section 13 and spiral case, reduce oil smoke and planar section 13 and spiral case
The area of front side board contact, and then reduce the area that greasy dirt is formed on the front side board of planar section 13 and spiral case.
Embodiment 13
The present embodiment provides a kind of smoke exhaust ventilators, not smooth enough when solving existing air-ducting ring air inlet, generate more make an uproar
The problem of sound, the technical solution of use are as follows: include any of the above-described spiral case.
Smoke exhaust ventilator in the present embodiment at the air guide hole 14 of spiral case air-ducting ring 1 by being arranged extension 11, extension
11 setting reduces air inlet noise so that 1 wind-guiding of air-ducting ring is more smooth；Meanwhile the setting of extension 11 not only reduces
The air intake resistance of air-ducting ring also makes the integral structure manufacturing process of air-ducting ring 1 more preferable, easy to process；And the cambered surface in air-ducting ring 1
The height of projection of section 12 is higher than the planar section 13 of air-ducting ring 1, this makes the oil smoke entered in smoke exhaust ventilator bellows in side plate bending 12
Water conservancy diversion under when being inhaled into spiral case, can be at a certain angle with the front apron shape of planar section 13 and spiral case, reduce oil
The area that cigarette is contacted with planar section 13 and spiral case front side board, and then reduce shape on the front side board of planar section 13 and spiral case
At the area of greasy dirt.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (13)
1. a kind of spiral case air-ducting ring, structure annular in shape, which is characterized in that the spiral case air-ducting ring (1) includes an extension
(11), the extension (11) is located at the air guide hole (14) of the spiral case air-ducting ring (1), the longitudinal section of the extension (11)
For two straightways, the straightway extends along air inlet direction, and the extension (11) is suitable for guiding oil smoke in the assembled condition
Into the wind wheel center of the spiral case.
2. spiral case air-ducting ring according to claim 1, which is characterized in that the diameter of section of the extension (11) is along air inlet
Successively decrease in direction.
3. spiral case air-ducting ring according to claim 1, which is characterized in that the spiral case air-ducting ring (1) further includes side plate bending
(12), the side plate bending (12) is connected as one formula with the extension (11) or is fixedly connected.
4. spiral case air-ducting ring according to claim 3, which is characterized in that the longitudinal section of the side plate bending (12) is arc,
The side plate bending (12) is raised towards air inlet side by the leeward side of the spiral case air-ducting ring (1).
5. spiral case air-ducting ring according to claim 3, which is characterized in that the side plate bending (12) and the extension (11)
It is tangent.
6. according to the spiral case air-ducting ring any in claim 3-5, which is characterized in that the spiral case air-ducting ring (1) is also wrapped
It includes a planar section (13), the planar section (13) is connected as one formula with the side plate bending (12) or is fixedly connected, the plane
Section (13) is fixedly connected with the spiral case in the assembled condition.
7. spiral case air-ducting ring according to claim 6, which is characterized in that the height of projection of the side plate bending (12) is higher than institute
State planar section (13).
8. spiral case air-ducting ring according to claim 6, which is characterized in that at least provided with two on the planar section (13)
Mounting hole (131), the mounting hole (131) are uniformly arranged in the circumferential direction of the planar section (13).
9. spiral case air-ducting ring according to claim 6, which is characterized in that be equipped with flanging at the outer rim of the planar section (13)
(132), the flanging (132) is located at the air inlet side of the spiral case air-ducting ring (1).
10. spiral case air-ducting ring according to claim 6, which is characterized in that the side plate bending (12) and the planar section
(13) it is connected smoothly.
11. spiral case air-ducting ring according to claim 6, which is characterized in that the extension (11), the side plate bending (12)
It is sequentially connected with the planar section (13) integrated.
12. a kind of spiral case, which is characterized in that include the spiral case air-ducting ring (1) any in claim 1-11.
13. a kind of smoke exhaust ventilator, which is characterized in that include the spiral case described in claim 12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175609.0U CN209494766U (en) | 2019-01-31 | 2019-01-31 | A kind of spiral case air-ducting ring, spiral case and smoke exhaust ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175609.0U CN209494766U (en) | 2019-01-31 | 2019-01-31 | A kind of spiral case air-ducting ring, spiral case and smoke exhaust ventilator |
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| CN209494766U true CN209494766U (en) | 2019-10-15 |
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ID=68157184
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| CN201920175609.0U Active CN209494766U (en) | 2019-01-31 | 2019-01-31 | A kind of spiral case air-ducting ring, spiral case and smoke exhaust ventilator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021151261A1 (en) * | 2020-02-01 | 2021-08-05 | 广东美的制冷设备有限公司 | Fresh air device and window type air conditioner |
| CN114076122A (en) * | 2020-08-10 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Air guide ring, centrifugal fan and range hood |
| CN114251281A (en) * | 2020-09-25 | 2022-03-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal fan and range hood |
| CN114251286A (en) * | 2020-09-25 | 2022-03-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal fan, air supply control method and device and range hood |
-
2019
- 2019-01-31 CN CN201920175609.0U patent/CN209494766U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021151261A1 (en) * | 2020-02-01 | 2021-08-05 | 广东美的制冷设备有限公司 | Fresh air device and window type air conditioner |
| CN114076122A (en) * | 2020-08-10 | 2022-02-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Air guide ring, centrifugal fan and range hood |
| CN114251281A (en) * | 2020-09-25 | 2022-03-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal fan and range hood |
| CN114251286A (en) * | 2020-09-25 | 2022-03-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal fan, air supply control method and device and range hood |
| CN114251286B (en) * | 2020-09-25 | 2024-05-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal fan, air supply control method and device and range hood |
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Address after: 315000 Xinmei Road 518, Ningbo High-tech Zone, Zhejiang Province Patentee after: Ningbo Oxfam Industrial Management Co., Ltd Address before: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee before: NINGBO AUX KITCHEN ELECTRIC MANUFACTURING Co.,Ltd. |
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