CN109611921B - Fume exhaust fan - Google Patents
Fume exhaust fan Download PDFInfo
- Publication number
- CN109611921B CN109611921B CN201910068878.1A CN201910068878A CN109611921B CN 109611921 B CN109611921 B CN 109611921B CN 201910068878 A CN201910068878 A CN 201910068878A CN 109611921 B CN109611921 B CN 109611921B
- Authority
- CN
- China
- Prior art keywords
- range hood
- oil screen
- electromagnetic
- oil
- motor shaft
- 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.)
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- 239000003517 fume Substances 0.000 title claims description 16
- 230000005484 gravity Effects 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 6
- 239000000696 magnetic material Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000006233 lamp black Substances 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- -1 aluminum nickel cobalt Chemical compound 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to the technical field of household appliances, in particular to a range hood. The range hood includes: a range hood main body; the oil screen is rotatably arranged on the range hood main body; the electromagnetic piece is arranged on the range hood main body and can generate electromagnetic force when being electrified; the oil screen is movably arranged in the direction of the rotation center line of the oil screen, the oil screen can be matched with a power device in the range hood under the action of electromagnetic force of an electromagnetic piece and/or the gravity of the oil screen, the oil screen is driven by the power device to rotate to a starting position, the oil screen is separated from the power device of the range hood, the oil screen is conveniently detached from the starting position, and then the oil screen is conveniently detached from the power device of the range hood when the oil screen is cleaned, so that the oil screen is not fixed by a fixed structure, the oil screen can be cleaned without disassembly, the convenient and quick installation, disassembly and cleaning of the range hood are realized, and the user experience is greatly improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a range hood.
Background
At present, for protecting a motor and separating oil smoke, an air inlet oil screen cover is arranged at an air inlet of a smoke collecting cover of the existing range hood, however, the oil screen with the structure has the following defects in the use process: because the viscosity is very high after the oil net is cooled by Wen Youdi, a large amount of oil dirt is adhered to the oil net when the oil fume is filtered, so that the oil fume separation performance of the oil net can be reduced, the escape probability of the oil fume is increased, and the indoor and atmospheric environments are polluted. Therefore, the oil screen and the like need to be cleaned regularly to ensure the normal working performance of the range hood, but the disassembly procedure of the oil screen is complex, and the user is inconvenient to maintain.
Disclosure of Invention
The invention mainly aims to provide a range hood, which aims to solve the problems of difficult disassembly and inconvenient maintenance of an oil screen of the range hood in the prior art.
In order to achieve the above object, the present invention provides a range hood comprising:
a range hood main body;
the oil screen is rotatably arranged on the range hood main body;
the electromagnetic piece is arranged on the range hood main body and can generate electromagnetic force when being electrified;
the oil screen is movably arranged in the direction of the rotation center line of the oil screen, and can move to a starting position matched with a power device in the range hood under the action of electromagnetic force of the electromagnetic piece and/or gravity of the oil screen, and move to a closing position separated from the power device of the range hood under the driving of the power device, so that the oil screen is convenient to detach.
Further, the power device comprises a motor arranged on the range hood main body, a motor shaft is arranged on the motor, the electromagnetic part is arranged close to the oil net, when the electromagnetic part is powered on, the oil net moves and is sleeved on the motor shaft and rotates along with the rotation of the motor shaft, and when the electromagnetic part is powered off, the oil net is separated from the motor shaft and is close to the electromagnetic part.
Further, the motor shaft is an irregularly-shaped shaft, and the oil screen is formed with an oil screen sleeve matched with the motor shaft.
Further, in the activated position, the motor shaft is in clearance fit with the oil screen.
Further, the electromagnetic piece is a direct current magnetic ring.
Further, the motor shaft is arranged on one side of the oil screen, and the electromagnetic piece is arranged on the other side of the oil screen.
Further, the range hood comprises an impeller arranged on the range hood main body, the electromagnetic piece is arranged on the impeller, the range hood further comprises a fume collecting hood, and a movable space for accommodating the oil net is formed between the fume collecting hood and the electromagnetic piece.
Further, the oil screen is movably arranged in the movable space, and when the electromagnetic part is powered on, the oil screen rotates along with the rotation of the electromagnetic part driven by the impeller.
Further, the electromagnetic parts are electromagnetic blocks uniformly distributed in the circumferential direction of the impeller
Further, the oil screen is made of or at least comprises a part of magnetic material.
The technical scheme of the invention has the following advantages:
according to the range hood provided by the invention, the oil net moves to be matched with the power device in the range hood under the action of electromagnetic force of the electromagnetic part and/or gravity of the oil net, the oil net is driven by the power device to rotate to realize the oil fume separation function, and when the oil net is cleaned, the oil net is only required to be moved to be separated from the power device of the range hood, so that the oil net is convenient to detach and closed, no fixed structure is arranged at the moment, the oil net can be cleaned without detachment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is an exploded view of a range hood according to a first embodiment of the present invention.
Fig. 2 is a schematic cross-sectional structure of the range hood of fig. 1, wherein the range hood is in an activated state.
Fig. 3 is a schematic cross-sectional structure of the range hood of fig. 1, wherein the range hood is in a closed state.
Fig. 4 is a schematic diagram of a structure in which a motor shaft and an oil screen are matched in the range hood shown in fig. 1.
Fig. 5 is an exploded view of a range hood according to a second embodiment of the present invention.
Fig. 6 is a schematic cross-sectional structure of the range hood of fig. 5, wherein the range hood is in an activated state.
Fig. 7 is a schematic cross-sectional structure of the range hood of fig. 5, wherein the range hood is in an activated state.
Wherein, the reference numerals in the drawings are as follows:
1. a motor; 11. a motor shaft; 2. an oil screen; 21. an oil screen sleeve; 3. an electromagnetic member; 4. a fume collecting hood; 5. a filter screen assembly; 7. a movable space; 8. an impeller.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1 to 4, the range hood according to the present embodiment includes a hood main body, an oil screen 2, and an electromagnetic member 3.
The oil net 2 is rotatably arranged on the range hood main body, and the electromagnetic part 3 is arranged on the range hood main body and can generate electromagnetic force when being electrified; the oil net 2 in this implementation can be movably arranged in the direction of the rotation center line of the oil net 2, and can be moved to the starting position matched with a power device in the range hood under the action of electromagnetic force of the electromagnetic piece 3 and/or the gravity of the oil net 2, and can be moved to the closing position separated from the power device of the range hood under the drive of the power device, so that the range hood in this implementation can be conveniently and quickly installed, detached and cleaned.
Specifically, in this embodiment, the power device includes the motor 1 of installing on the lampblack absorber main part, motor 1 is last to have motor shaft 11, electromagnetic part 3 is the direct current magnetic ring specifically, it is close to the setting of oil net 2, when electromagnetic part 3 switch on, oil net 2 removes and overlaps and establish on motor shaft 11, rotate along with the rotation of motor shaft 11, when electromagnetic part 3 outage, oil net 2 breaks away from with motor shaft 11 and is close to with electromagnetic part 3 under the effect of power, and then when wasing oil net 2 to the lampblack absorber, only need dismantle filter screen subassembly 5 on the lampblack absorber main part, then take out the direct current magnetic ring, at this moment alright be convenient with unset oil net 2 get wash, when guaranteeing that the lampblack absorber normally works, be convenient for the taking out of oil net 2 wash.
In a variant of this embodiment, the range hood further comprises an independent oil screen motor, the oil screen being driven solely by a dedicated oil screen motor.
Referring further to fig. 4, in this embodiment, the motor shaft 11 is an irregularly shaped shaft, the oil screen 2 is formed with an oil screen sleeve 21 adapted to the motor shaft 11, specifically, the motor shaft 11 is a D-shaped rotating shaft, and the oil screen sleeve 21 is provided with D-shaped holes, which are mutually nested, so as to realize the cooperation between the motor shaft 11 and the oil screen 2. Of course, the shape of the motor shaft 11 is not limited, and it may be a hexagonal shaft, a U-shaped shaft, or any other irregularly shaped shaft, etc.
Preferably, in the starting position, the motor shaft 11 in the embodiment is in clearance fit with the oil screen 2, so that the oil screen 2 can be matched with the motor shaft 11 under the electromagnetic force of the electromagnetic member 3 and/or the gravity action of the oil screen 2, and the convenient disassembly function of the oil screen 2 in the embodiment is realized.
The motor shaft 11 in this embodiment is disposed on one side of the oil screen 2, the electromagnetic member 3 is disposed on the other side of the oil screen 2, and the direct current magnetic ring serving as the electromagnetic member 3 can provide a repulsive force after being electrified, and in the starting position, the electromagnetic member 3 provides a repulsive force to enable the oil screen 2 to be matched with the motor shaft 11 against the gravity. Whereas the oil screen 2 in this embodiment is made of or at least comprises a part of magnetic material, so that an interaction force with the electromagnetic member 3 is formed.
When the range hood is used by a user, the power supply is turned on, the direct current magnetic ring is instantly connected with the power supply, the electromagnetic ring generates magnetism under the condition of electromagnetic induction, the direct current magnetic ring generates magnetism and electromagnetic repulsion force is generated by the oil net 2 of an alloy magnetic material with high coercivity (comprising rare earth permanent magnet materials such as neodymium iron boron NdFeB, samarium cobalt (SmCo) and aluminum nickel cobalt AlNiCo), and the oil net 2 is guided into the middle of a D-type rotating shaft of the motor 1 in a suspending mode. At this time, the motor 1 starts to operate, and the oil screen 2 is driven to rotate at a high speed by using the D-shaped shaft hole matching (the D-shaped shaft hole matching is that a clearance matching plane is processed on the shaft and the hole, and the matching plane can play a transmission role as shown in the figure), so that the high-efficiency oil fume separation is realized.
And when a user needs to clean the range hood, after the power supply of the range hood is turned off, the motor 1 slowly stops rotating, and simultaneously the electromagnetic repulsive force between the oil net 2 and the direct current magnetic ring disappears, and the oil net 2 is smoothly and slightly attached to the surface of the direct current magnetic ring along the D-shaped rotating shaft of the motor 1. When the oil screen 2 is required to be disassembled, the oil screen 2 can be directly removed from the D-type rotating shaft after the filter screen assembly 5 is removed by using a screwdriver tool, and any fixing part is not required to be disassembled. The oil screen 2 can be quickly installed and removed for cleaning when the range hood is powered off, so that the oil fume separation performance of the range hood with the oil screen 2 is ensured.
Example 2
As shown in fig. 5 to 7, the range hood in this embodiment includes an impeller 8 mounted on a main body of the range hood, electromagnetic members 3 different from embodiment 1 are mounted on the impeller 8, the electromagnetic members 3 are electromagnetic blocks uniformly distributed in a circumferential direction of the impeller 8, the range hood further includes a fume collecting hood 4, and a movable space 7 for accommodating an oil net 2 is formed between the fume collecting hood 4 and the electromagnetic members 3. The oil screen 2 is movably arranged in the movable space 7, and when the electromagnetic member 3 is powered on, the oil screen 2 rotates along with the rotation of the electromagnetic member 3 driven by the impeller 8.
Specifically, when the range hood operates, the direct-current electromagnet block on the impeller 8 is electrified to generate magnetism, so that a certain suction force exists between the oil net 2 and the impeller 8, and the oil net 2 is suspended in the movable space 7. Then the motor 1 rotates, the DC electromagnet block on the impeller 8 rotates along with the motor, and the oil net 2 is rotated by the suction force between the oil net 2 and the DC electromagnet of the impeller 8. Finally, the oil screen 2 is driven without being connected by a shaft, and the oil screen 2 can be suspended and driven by utilizing an electromagnetic suspension technology.
When the range hood is closed, the oil net 2 slowly stops rotating along with the motor 1 and the impeller 8, and when the direct current electromagnetic block loses magnetism, the oil net 2 is not attracted, and then the oil net is stopped being attached to the oil ring filter screen assembly 5. When the cleaning oil screen 2 is required to be disassembled, after the filter screen assembly 5 is removed by using a screwdriver tool, the oil screen 2 can be directly taken out from the movable space 7 without disassembling any fixed parts. The oil screen 2 can be quickly installed and removed for cleaning when the range hood is powered off, so that the oil fume separation performance of the range hood with the oil screen 2 is ensured.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And is thereby guided by
Obvious variations or modifications of the extension remain within the scope of the invention.
Claims (9)
1. A range hood, comprising:
a range hood main body;
the oil screen (2) is rotatably arranged on the range hood main body;
an electromagnetic member (3) which is installed on the range hood main body and generates electromagnetic force when being electrified;
wherein the oil screen (2) is movably arranged in the direction of the rotation center line of the oil screen, and is provided with a starting position which is matched with a power device in the range hood and is driven by the power device to rotate and a closing position which is separated from the power device of the range hood and is convenient to detach under the action of electromagnetic force of the electromagnetic piece (3) and/or gravity of the oil screen (2),
the power device comprises a motor (1) arranged on the range hood main body, a motor shaft (11) is arranged on the motor (1), the motor shaft (11) is arranged on one side of the oil net (2), the electromagnetic part (3) is arranged on the other side of the oil net (2), the direct current magnetic ring serving as the electromagnetic part (3) is electrified to provide repulsive force, and in the starting position, the electromagnetic part (3) provides repulsive force to enable the oil net (2) to overcome the gravity to be matched with the motor shaft (11).
2. The range hood according to claim 1, wherein the electromagnetic member (3) is arranged adjacent to the oil screen (2), the oil screen (2) moves and is sleeved on the motor shaft (11) when the electromagnetic member (3) is powered on, the oil screen rotates along with the rotation of the motor shaft (11), and the oil screen (2) is separated from the motor shaft (11) and is close to the electromagnetic member (3) when the electromagnetic member (3) is powered off.
3. The range hood according to claim 2, characterized in that the motor shaft (11) is an irregularly shaped shaft, and the oil screen (2) is formed with an oil screen sleeve (21) adapted to the motor shaft (11).
4. A range hood according to claim 2, characterized in that in the start position the motor shaft (11) is in a clearance fit with the oil screen (2).
5. A range hood according to claim 2, characterized in that the electromagnetic member (3) is a dc electromagnetic ring.
6. A range hood according to claim 1, characterized in that the range hood comprises an impeller (8) mounted on the range hood body, the electromagnetic member (3) being mounted on the impeller (8), the range hood further comprising a fume collecting hood (4), the range hood forming a movable space (7) between the fume collecting hood (4) and the electromagnetic member (3) for accommodating the oil screen (2).
7. The range hood according to claim 6, wherein the oil screen (2) is movably mounted in the movable space (7), and the oil screen (2) rotates with the rotation of the electromagnetic member (3) driven by the impeller (8) when the electromagnetic member (3) is powered on.
8. The range hood according to claim 6, wherein the electromagnetic members (3) are electromagnetic blocks uniformly distributed in the circumferential direction of the impeller (8).
9. -range hood according to any one of claims 1 to 8, characterised in that the oil screen (2) is made of or at least comprises a part of a magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068878.1A CN109611921B (en) | 2019-01-24 | 2019-01-24 | Fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068878.1A CN109611921B (en) | 2019-01-24 | 2019-01-24 | Fume exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611921A CN109611921A (en) | 2019-04-12 |
| CN109611921B true CN109611921B (en) | 2024-02-27 |
Family
ID=66018242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910068878.1A Active CN109611921B (en) | 2019-01-24 | 2019-01-24 | Fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611921B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207235A (en) * | 2019-06-20 | 2019-09-06 | 珠海格力电器股份有限公司 | Disassembly and assembly structure and kitchen ventilator |
| CN110160110A (en) * | 2019-07-05 | 2019-08-23 | 珠海格力电器股份有限公司 | Screen mounting structure, fan assembly, kitchen ventilator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803400U (en) * | 2010-07-02 | 2011-04-20 | 樱花卫厨（中国）股份有限公司 | Oil screen fixing device for range hood |
| CN202118978U (en) * | 2011-06-02 | 2012-01-18 | 美的集团有限公司 | Range hood capable of automatically cleaning oil screen |
| EP2551602A1 (en) * | 2011-07-26 | 2013-01-30 | BSH Bosch und Siemens Hausgeräte GmbH | Hotte aspirante |
| CN206496394U (en) * | 2017-01-24 | 2017-09-15 | 佛山市云米电器科技有限公司 | A kind of smoke exhaust ventilator with detachable strainer |
| CN108006748A (en) * | 2017-06-19 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of screen mounting structure of range hood |
| CN207716481U (en) * | 2017-11-03 | 2018-08-10 | 杭州老板电器股份有限公司 | A kind of oil network magnetic structure and its kitchen ventilator |
| CN109237567A (en) * | 2018-10-16 | 2019-01-18 | 珠海格力电器股份有限公司 | Fume extracting system |
| CN208398160U (en) * | 2018-05-21 | 2019-01-18 | 中山市邦太电器有限公司 | A kind of kitchen ventilator of cleaning easy to disassemble |
| CN209605234U (en) * | 2019-01-24 | 2019-11-08 | 珠海格力电器股份有限公司 | Range hood |
-
2019
- 2019-01-24 CN CN201910068878.1A patent/CN109611921B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803400U (en) * | 2010-07-02 | 2011-04-20 | 樱花卫厨（中国）股份有限公司 | Oil screen fixing device for range hood |
| CN202118978U (en) * | 2011-06-02 | 2012-01-18 | 美的集团有限公司 | Range hood capable of automatically cleaning oil screen |
| EP2551602A1 (en) * | 2011-07-26 | 2013-01-30 | BSH Bosch und Siemens Hausgeräte GmbH | Hotte aspirante |
| CN206496394U (en) * | 2017-01-24 | 2017-09-15 | 佛山市云米电器科技有限公司 | A kind of smoke exhaust ventilator with detachable strainer |
| CN108006748A (en) * | 2017-06-19 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of screen mounting structure of range hood |
| CN207716481U (en) * | 2017-11-03 | 2018-08-10 | 杭州老板电器股份有限公司 | A kind of oil network magnetic structure and its kitchen ventilator |
| CN208398160U (en) * | 2018-05-21 | 2019-01-18 | 中山市邦太电器有限公司 | A kind of kitchen ventilator of cleaning easy to disassemble |
| CN109237567A (en) * | 2018-10-16 | 2019-01-18 | 珠海格力电器股份有限公司 | Fume extracting system |
| CN209605234U (en) * | 2019-01-24 | 2019-11-08 | 珠海格力电器股份有限公司 | Range hood |
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| Publication number | Publication date |
|---|---|
| CN109611921A (en) | 2019-04-12 |
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