CN110332133A - Fan assembly and range hood - Google Patents
Fan assembly and range hood Download PDFInfo
- Publication number
- CN110332133A CN110332133A CN201910619079.9A CN201910619079A CN110332133A CN 110332133 A CN110332133 A CN 110332133A CN 201910619079 A CN201910619079 A CN 201910619079A CN 110332133 A CN110332133 A CN 110332133A
- Authority
- CN
- China
- Prior art keywords
- oil
- fan assembly
- guiding element
- rotary sieve
- filter screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000779 smoke Substances 0.000 claims abstract description 34
- 230000000694 effects Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Ventilation (AREA)
Abstract
The invention provides a fan assembly and a range hood, wherein the fan assembly comprises an impeller, a motor and a rotary filter screen arranged at an air inlet, and further comprises: lead the oil spare, set up and be in rotary filter screen keeps away from on the terminal surface of impeller, lead at least some in the oil spare and be close to rotary filter screen's centre of a circle position sets up, just lead the oil spare have with the oil smoke contact lead oil portion, lead at least some orientation air inlet direction protrusion setting of oil portion. Under the effect of the impeller, the oil smoke at the rotary filter screen flows in an oil drop state in the adsorption process, the oil guide piece is guided to the position far away from the center of the rotary filter screen, the centrifugal force applied to the oil drop at the position far away from the center of the rotary filter screen is large, the oil drop can be better thrown to the periphery, and the oil smoke separation effect is better.
Description
Technical field
The present invention relates to fields of home appliance technology, and in particular to a kind of fan assembly, kitchen ventilator.
Background technique
With the development of society, kitchen ventilator has become the kitchen appliance of urban life kitchen indispensability, still, kitchen ventilator is deposited
In the problem that cleaning is inconvenient.
The cleaning of kitchen ventilator is solved the problems, such as by the way of high speed rotation filter screen interception oil smoke in the prior art, is rotated
Side of the impeller close to air inlet is arranged in strainer, and the radial direction of rotary sieve and the axis direction of impeller are perpendicular, when
Smoke machine can be prevented to be flowed into impeller internal after rotary sieve rotation, and then internal core components can be prevented untired by oil smoke
It disturbs.
Current rotary sieve is all made of unilateral or double-deck filter screen, and filter screen is under high speed rotation in oil smoke
Grease is intercepted, is assembled, and is pulled off filter screen by centrifugal force after aggregate amount reaches certain amount, but due to filter screen
The lesser zonal centrifugation power of radius is smaller with respect to outer ring, and centrifugal force suffered by the greasy dirt under being intercepted by inner ring is smaller, by centrifugal force
It is just drawn into impeller by air inlet before throwing away, to reduce the grease separating degree of rotary sieve, and then influences clear again
Wash effect.
Summary of the invention
Therefore, the present invention is directed to improve kitchen ventilator in the prior art to the separating effect of grease, to provide a kind of blower
Component, kitchen ventilator.
To solve the above-mentioned problems, the present invention provides a kind of fan assembly, including impeller, motor and settings to enter the wind
Rotary sieve at mouthful, further includes: the rotary sieve is arranged in far from an end face of impeller, the oil-guiding element in oil-guiding element
In at least part be arranged close to the center of circle position of the rotary sieve, and the oil-guiding element has the Oil Guide that contacts with oil smoke
At least part in portion, the Oil Guide portion is arranged towards air inlet direction protrusion.
Further, the Oil Guide portion is configured to coniform, and bottom surface is arranged close to the rotary sieve.
Further, the center of the oil-guiding element and the center of circle of the rotary sieve coincide.
Further, the oil-guiding element is arranged on the rotary sieve.
Further, the axial end of the motor shaft of the motor is arranged in the oil-guiding element.
It further, further include oil network bracket, the oil network bracket is socketed on the motor shaft, the oil-guiding element setting
On the oil network bracket.
Further, the oil-guiding element further includes the mounting portion being arranged on Oil Guide portion bottom surface, and the mounting portion is set
It sets on the oil network bracket.
Further, shape is arranged the mounting portion in a ring.
Further, the mounting portion, the rotary sieve position corresponding with the oil network bracket are provided with installation
The rotary sieve is fixed between the mounting portion and the rotary sieve by hole, connector by the mounting hole.
It include any of the above-described fan assembly the present invention also provides a kind of kitchen ventilator.
Technical solution of the present invention has the advantages that
1. the fan assembly in the present invention includes impeller, motor and the rotary sieve being arranged on motor, further includes: lead
One end of the close air inlet of the rotary sieve is arranged in oily part, and at least part in the oil-guiding element is close to the rotation
Turn the center of circle position setting of strainer, and the oil-guiding element has the Oil Guide portion that contacts with oil smoke, at least one of the Oil Guide portion
Divide towards the protrusion setting of air inlet direction.
Under impeller effect, the oil smoke that culinary art movement generates is adsorbed onto the front end of fan assembly first, at rotary sieve,
Above-mentioned oil smoke is flowed in adsorption process with oil droplet shape, by water conservancy diversion to far from rotary sieve at the oil-guiding element in the present invention
At the heart, it is partially toward the bending of air inlet direction because oil-guiding element exists, reduces or has prevented rotary sieve center substantially to oil smoke
Filtering, and corresponding oil droplet is transferred directly at the filter cloth edge, the analysis of Yu Shangshu background technique is known, far from rotation
The centrifugal force that strainer center oil smoke is subject to is big, oil smoke good separating effect, therefore the fan assembly in the present invention has relatively
In the prior art preferably oil smoke separating effect.
2. Oil Guide portion described in the fan assembly in the present invention is configured to coniform, bottom surface is close to the rotary sieve
Setting.Circular cone can be real from peak to its circular conical surface with good guide between bottom surface as common basic geometry
Now to the quick guiding of oil smoke, to improve the exhaust gas volumn of processing oil smoke and the treatment effeciency to oil smoke in the unit time.
3. the center of oil-guiding element described in the fan assembly in the present invention and the center of circle of the rotary sieve coincide, centainly
In degree, when oil-guiding element is as regular symmetrical rotary body, such as it is conical structure, spherical, the guiding of oil smoke more evenly can be revolved
Turn the edge of strainer, when at the part edge for avoiding the oil smoke being oriented to when oil-guiding element to be gathered in rotary sieve this moment, will increase
The filtering of rotary sieve is born, and the effect of filtering is influenced.
4. oil-guiding element described in the fan assembly in the present invention is arranged on the rotary sieve, this description is as the present invention
In some feasible embodiments, oil-guiding element can be molded directly on rotary sieve, simplify the installation to it this moment.
5. the axial end that the motor shaft of the motor is arranged in oil-guiding element described in the fan assembly in the present invention.This description
As some feasible embodiments in the present invention, oil-guiding element is coupled with motor shaft, is mainly facilitated maintenance, is being rotated
When strainer needs replacing, replacement oil-guiding element is not needed, relevant cost can be saved.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the explosive view of the fan assembly in embodiment 1 provided by the invention；
Fig. 2 is the side view of the fan assembly in embodiment 1 provided by the invention；
Fig. 3 is the structural schematic diagram of the oil-guiding element in embodiment 1 provided by the invention.
Description of symbols:
1- impeller；
2- motor；
3- rotary sieve；
4- oil-guiding element；41- Oil Guide portion；42- mounting portion；
5- filter screen bracket；
6- rotary sieve nut；
7- connector；
8- impeller nut.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
It is a kind of fan assembly provided in this embodiment, including impeller 1, motor 2 and setting are in electricity shown in Fig. 1 to Fig. 2
Rotary sieve 3 on machine 2, further includes: one end of the close air inlet of the rotary sieve 3 is arranged in oil-guiding element 4, described to lead
At least part in oily part 4 is arranged close to the center of circle position of the rotary sieve 3, and the oil-guiding element 4 has and connects with oil smoke
At least part in the Oil Guide portion 41 of touching, the Oil Guide portion 41 is arranged towards air inlet direction protrusion.
It should be noted that the fan assembly in the present embodiment is applied on kitchen ventilator comprising turbofan, it is above-mentioned
Turbofan has air inlet, is equipped with above-mentioned impeller 1 on the internal perisporium of air inlet, and motor 2 is mounted in air inlet axial direction,
It is arranged close to one end, impeller 1 is fixed on the motor shaft of motor 2 by impeller nut 8, is rotated together with motor shaft.
As shown in Figure 1, the rotary sieve 3 in the present embodiment is mounted on the motor shaft of motor 2, above-mentioned motor shaft adds
Work is at multiple axis ranks, and because the motor diameter of axle is typically small, in order to guarantee the reliability of rotary sieve installation, elder generation is on motor shaft
Filter screen bracket 5 is installed, filter screen bracket 5 is annular element, is machined with interior installing hole thereon, is socketed in motor shaft by interior installing hole
At axis rank, using the position-limiting action of axis rank, the limit to one side is realized.Cyclic annular branch is formed on the outer peripheral surface of filter screen bracket 5
Side is supportted, rotary sieve 3 is fixed on above-mentioned support edge, and the side far from support edge will be rotated by rotary sieve nut 6
The lock of strainer 3 is paid at above-mentioned axis rank.
Through above-mentioned elaboration, further the fan assembly analyzed in this implementation under the effect of impeller 1, culinary art movement is generated
Oil smoke be adsorbed onto the front end of fan assembly first, at rotary sieve 3, above-mentioned oil smoke is in adsorption process with gaseous fluid
States of matter flowing, at oil-guiding element 4 in this present embodiment by water conservancy diversion at separate 3 center of rotary sieve, because there are portions for oil-guiding element 4
Divide towards direction bending is entered the wind, reduces or prevented substantially filtering of 3 center of rotary sieve to oil smoke, and will be corresponding oily
Cigarette is transferred directly at the filter cloth edge, and the analysis of Yu Shangshu background technique is known, far from 3 center oil smoke of rotary sieve by
The centrifugal force arrived is big, oil smoke good separating effect, therefore the fan assembly in the present embodiment has compared with the existing technology preferably
Oil smoke separating effect.
In order to further improve the treatment effect to oil smoke, the Oil Guide portion 41 in the present embodiment is configured to circular cone
Shape, bottom surface are arranged close to the rotary sieve 3, and circular cone is as common basic geometry, from peak to its tool between bottom surface
There is the circular conical surface of good guide, it can be achieved that quick guiding to oil smoke, to improve the cigarette of processing oil smoke in the unit time
Tolerance and treatment effeciency to oil smoke.
In some other embodiments, above-mentioned Oil Guide portion is also machined to part spherical, arcuation etc., it is spherical and
The processing of arc is relatively easy.
Further, the center of the oil-guiding element 4 and the center of circle of the rotary sieve 3 coincide, to a certain extent, when leading
When oily part 4 is as regular symmetrical rotary body, such as it is conical structure, spherical, it can be by the side of the guiding rotary sieve 3 of oil smoke more evenly
Edge will increase rotary sieve 3 when avoiding at the part edge that the oil smoke of the guiding of oil-guiding element 4 is gathered in rotary sieve 3 this moment
Filtering burden, influence filtering effect.
The oil-guiding element 4 in the present embodiment is removably mounted on the axial end of the motor shaft of the motor 2.Specifically
Ground, the oil-guiding element 4 further include the mounting portion 42 being arranged on 41 bottom surface of Oil Guide portion, and shape is set the mounting portion 42 in a ring
It sets, is bonded setting with the support edge of above-mentioned filter screen bracket 5.Wherein mounting portion 42, the rotary sieve 3 and the oil network bracket
5 corresponding positions are provided with mounting hole, and the rotary sieve 3 is fixed on the installation by the mounting hole by connector 7
Between portion 42 and the rotary sieve 3, the connector 7 in the present embodiment is common bolt arrangement.Oil-guiding element 4 in the present embodiment
It is coupled with motor shaft, mainly facilitates maintenance, when rotary sieve 3 needs replacing, do not needed replacement oil-guiding element, can save
Relevant cost.
The oil-guiding element 4 is arranged on the rotary sieve 3 in some other embodiments, such as directly does the two
At an entirety, the process of installation can be simplified.
Embodiment 2
A kind of kitchen ventilator is present embodiments provided, including the fan assembly in embodiment 1, and it is excellent with its whole technology
Point is not repeating one by one herein.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of fan assembly, including impeller (1), motor (2) and the rotary sieve (3) that air inlet is arranged in, feature
It is, further includes:
Oil-guiding element (4) is arranged on the end face of the rotary sieve (3) far from impeller (1), in the oil-guiding element (4) extremely
Few a part is arranged close to the center of circle position of the rotary sieve (3), and the oil-guiding element (4) has the Oil Guide contacted with oil smoke
At least part in portion (41), the Oil Guide portion (41) is arranged towards air inlet direction protrusion.
2. fan assembly according to claim 1, which is characterized in that the Oil Guide portion (41) be configured to it is coniform,
Bottom surface is arranged close to the rotary sieve (3).
3. fan assembly according to claim 2, which is characterized in that the center of the oil-guiding element (4) and the rotation are filtered
The center of circle of net (3) coincides.
4. fan assembly according to claim 3, which is characterized in that the oil-guiding element (4) is arranged in the rotary sieve
(3) on.
5. fan assembly according to claim 3, which is characterized in that the oil-guiding element (4) is arranged in the motor (2)
The axial end of motor shaft.
6. fan assembly according to claim 5, which is characterized in that further include oil network bracket (5), the oil network bracket
(5) it is socketed on the motor shaft, the oil-guiding element (4) is arranged on the oil network bracket (5).
7. fan assembly according to claim 6, which is characterized in that the oil-guiding element (4) further includes that setting is led described
Mounting portion (42) on oily portion (41) bottom surface, the mounting portion (42) are arranged on the oil network bracket (5).
8. fan assembly according to claim 7, which is characterized in that shape is arranged the mounting portion (42) in a ring.
9. fan assembly according to claim 7 or 8, which is characterized in that the mounting portion (42), the rotary sieve
(3) position corresponding with oil network bracket (5) is provided with mounting hole, and connector (7) is by the mounting hole by the rotation
Turn strainer (3) to be fixed between the mounting portion (42) and the rotary sieve (3).
10. a kind of kitchen ventilator characterized by comprising
Any fan assembly in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619079.9A CN110332133A (en) | 2019-07-09 | 2019-07-09 | Fan assembly and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619079.9A CN110332133A (en) | 2019-07-09 | 2019-07-09 | Fan assembly and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332133A true CN110332133A (en) | 2019-10-15 |
Family
ID=68145166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910619079.9A Pending CN110332133A (en) | 2019-07-09 | 2019-07-09 | Fan assembly and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351091A (en) * | 2020-04-28 | 2020-06-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203823844U (en) * | 2013-12-31 | 2014-09-10 | 王茂春 | Automatic rotating centrifugal oil throwing impeller |
| CN106765391A (en) * | 2016-12-21 | 2017-05-31 | 宁波方太厨具有限公司 | A kind of cooking fume filter |
| CN207153287U (en) * | 2017-08-10 | 2018-03-30 | 佛山市科思博科技有限公司 | A kind of oil-fume separating device |
| CN207838500U (en) * | 2018-01-10 | 2018-09-11 | 林德祥 | Filter screen disk, multiple gas cleaning structure and smoke eliminator |
| CN210565186U (en) * | 2019-07-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Fan assembly and range hood |
-
2019
- 2019-07-09 CN CN201910619079.9A patent/CN110332133A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203823844U (en) * | 2013-12-31 | 2014-09-10 | 王茂春 | Automatic rotating centrifugal oil throwing impeller |
| CN106765391A (en) * | 2016-12-21 | 2017-05-31 | 宁波方太厨具有限公司 | A kind of cooking fume filter |
| CN207153287U (en) * | 2017-08-10 | 2018-03-30 | 佛山市科思博科技有限公司 | A kind of oil-fume separating device |
| CN207838500U (en) * | 2018-01-10 | 2018-09-11 | 林德祥 | Filter screen disk, multiple gas cleaning structure and smoke eliminator |
| CN210565186U (en) * | 2019-07-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Fan assembly and range hood |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351091A (en) * | 2020-04-28 | 2020-06-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
| CN111351091B (en) * | 2020-04-28 | 2022-02-18 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20150275831A1 (en) | Air Intake System for a Work Vehicle | |
| CN111351092B (en) | Smoke exhaust ventilator | |
| CN110332133A (en) | Fan assembly and range hood | |
| US20120192533A1 (en) | Device for filtering the intake air of an internal combustion engine having ventilation means | |
| CN110296450A (en) | Dynamic filter screen, fan subassembly, lampblack absorber | |
| CN109899853A (en) | Rotary filter screen structure and range hood | |
| CN110500628A (en) | Rotary sieve, net-filter assembly and range hood | |
| CN203962222U (en) | A kind of highly effective air cleans pre-separate device | |
| CN212039601U (en) | Double-stage sleeve rotary wet dust-removing gas washing machine | |
| CN210565186U (en) | Fan assembly and range hood | |
| CN205825165U (en) | Lampblack separation module for range hood and range hood | |
| CN109681934A (en) | Smoke exhaust ventilator | |
| CN209910011U (en) | Rotary filter screen structure and range hood | |
| CN106958842A (en) | Turbo-power static combined type fume purifier of fume | |
| CN109812853B (en) | Fan assembly of range hood and range hood | |
| CN210832127U (en) | Rotating assembly, rotary filter screen, filter screen assembly and range hood | |
| CN203525449U (en) | Impinging stream rotating oil-gas separator | |
| CN202338943U (en) | Connecting structure of air inlet cover | |
| CN109372661A (en) | A kind of filter prefilter | |
| CN212202525U (en) | Centrifugal fan for range hood | |
| CN216557278U (en) | Fume exhaust fan | |
| CN110173734A (en) | Filter screen of range hood, air inlet system of range hood and range hood | |
| CN111282381A (en) | Double-stage sleeve rotary wet dust-removing gas washing machine | |
| CN213360554U (en) | Improved water pump impeller | |
| CN216814285U (en) | Oil smoke separator and range hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |