CN109959035B - Filter fan and range hood with same - Google Patents
Filter fan and range hood with same Download PDFInfo
- Publication number
- CN109959035B CN109959035B CN201711334797.9A CN201711334797A CN109959035B CN 109959035 B CN109959035 B CN 109959035B CN 201711334797 A CN201711334797 A CN 201711334797A CN 109959035 B CN109959035 B CN 109959035B
- Authority
- CN
- China
- Prior art keywords
- filter screen
- impeller
- screen cylinder
- spiral case
- filter
- 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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Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 14
- 241001330002 Bambuseae Species 0.000 claims abstract description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 14
- 239000011425 bamboo Substances 0.000 claims abstract description 14
- 239000003517 fume Substances 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 description 19
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a filtration formula fan, including spiral case (13) and locate motor (11) and impeller (12) in spiral case (13), aforementioned spiral case (13) have the air intake, and output shaft (111) and impeller (12) of aforementioned motor (11) are connected, and aforementioned impeller (12) are just to the air intake arrangement of spiral case (13), characterized in that this fan still includes filter screen section of thick bamboo (2), and this filter screen section of thick bamboo (2) rear end is connected with output shaft (111) of motor (11) and can rotate together with impeller (12), and the air intake of spiral case (13) is stretched out to aforementioned filter screen section of thick bamboo (2) part. The utility model also discloses a range hood. The adoption of the filter screen cylinder can increase the surface area of the filter screen cylinder, when the oil fume passes through the oil fume separation net, the rotating linear speed of the filter screen cylinder is higher, the probability that oil drops are intercepted by collision of the surface of the filter screen cylinder is greatly increased, and the oil fume separation effect is improved.
Description
Technical Field
The utility model relates to a fan which is mainly applied to a range hood, and also relates to the range hood, belonging to the technical field of kitchen ranges.
Background
The current range hood is used for protecting a motor and separating oil smoke, an air inlet net cover is generally arranged at an air inlet of a fume collecting hood, and as an improvement, a plane net cover is also arranged at an air inlet of a volute and can rotate together with an impeller, and the Chinese patent of ZL201420732722.1, namely a rotary centrifugal oil smoke separation device (the authorized bulletin number is CN 204285570U); reference may also be made to the chinese utility model patent No. ZL201620110299.0, "a flat-panel range hood" (grant bulletin No. CN 205536025U);
however, the planar mesh enclosure with the structure has the following defects in the use process:
firstly, the noise is loud, the contact surface between the plane mesh enclosure and the oil smoke is not big enough, the smoke passing through the plane mesh enclosure is vertical to the surface of the mesh enclosure, and the smoke enters the range hood and collides with the rotating airflow generated by the rotation of the impeller to cause loud noise; secondly, the phenomena of incomplete oil smoke separation and the like exist, the air inlet mode of the planar mesh enclosure does not accord with air fluidics, and the oil smoke cannot be well drained.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a filter fan with good oil smoke separation effect aiming at the current state of the art.
The utility model aims to provide a range hood with good oil smoke separation effect.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a filter fan, includes spiral case and locates motor and the impeller in the spiral case, and aforesaid spiral case has the air intake, and the output shaft and the impeller of aforesaid motor are connected, and aforesaid impeller is just to the air intake arrangement of spiral case, and its characterized in that this fan still includes a filter screen section of thick bamboo, and this filter screen section of thick bamboo rear end and the output shaft of motor are connected and can rotate together with the impeller, and aforesaid filter screen section of thick bamboo part stretches out the air intake of spiral case.
The filter screen cylinder assembly structure is preferably set as follows: the middle part of impeller is equipped with the rim plate with output shaft connection, the rear end of filter screen section of thick bamboo has a installation chassis, and this installation chassis connection sets up in the preceding terminal surface of rim plate of aforesaid. Therefore, the filter screen cylinder and the impeller can be assembled after being adjusted on the dynamic balance tester, the influence of poor dynamic balance on the whole machine performance is reduced, later-stage independent maintenance is facilitated, and the maintenance cost is reduced.
The middle part of the installation chassis is provided with a through hole, and a lock nut penetrates through the through hole and is connected to the wheel disc. The disassembly and the assembly are convenient, and the stability is good.
The mounting chassis is provided with a plurality of air outlet holes around the through holes. The existence of the air outlet holes can reduce the influence of the installation chassis on the air flow in the impeller.
The radial length of the rear end of the filter screen cylinder is smaller than that of the front end, and the filter screen cylinder is flaring. The conical surface that expands outward has bigger filtration area, and during operation, the oil smoke is before getting into the impeller, and the conical surface that first passes through the filter screen section of thick bamboo is once from outside inwards filtered dynamically, and then the oil smoke has the inside of conical surface to impeller direction flow again, and the secondary dynamic filtration of filter screen section of thick bamboo conical surface is passed through, consequently, although individual layer filter screen face, but can realize that the oil smoke is through the filtration of twice dynamic net, and the filter effect further promotes.
Preferably, an axial air inlet port is formed at the front end of the filter screen barrel.
Preferably, the single-hole area of the filter mesh on the filter screen cylinder is 40mm 2 ～400mm 2 。
Preferably, the filter mesh on the filter screen cylinder is diamond, round, regular hexagon, ellipse or square.
Preferably, the penetration rate of the filter screen cylinder is 0.35 to 0.7.
A range hood comprises a housing, a filtering fan and a fume collecting hood, wherein the filtering fan is arranged in the housing, and the fume collecting hood is arranged at the lower port of the housing and is provided with an air inlet.
The outside of the filtered fan is provided with a front cover plate, and a gap is reserved between the front end of the filter screen cylinder and the front cover plate.
Compared with the prior art, the utility model has the advantages that: the filter screen cylinder with the three-dimensional structure can increase the surface area of the filter screen cylinder when oil fume passes through the oil fume separation net, the rotating linear speed of the filter screen cylinder is higher, the probability that oil drops are intercepted by the collision of the outer peripheral surface of the filter screen cylinder is greatly increased, the oil fume separation effect is improved, liquid drops on the surface of the filter screen cylinder can flow and gather, and when the centrifugal force of the liquid drops is greater than the surface friction force, the liquid drops can be thrown away from the filter screen cylinder, so the oil drops are not easy to block meshes. The oil smoke enters the filter screen cylinder from the filter mesh on the surface of the filter screen cylinder, and enters the impeller, so that the space in the filter screen cylinder can play a role in smoke drainage, the air fluidics is met, and when the oil smoke passes through the filter screen cylinder, noise generated between the oil smoke and the filter screen cylinder is reduced, so that harshness and whistle are reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is a schematic view of the structure of fig. 1 with the cover removed.
Fig. 3 is a schematic view of the structure of fig. 2 with the front cover plate removed.
Fig. 4 is a perspective cross-sectional view of an embodiment.
Fig. 5 is an enlarged view of the filter blower (with the volute removed) of fig. 3.
Fig. 6 is an exploded view of fig. 5.
Fig. 7 is a perspective cross-sectional view of fig. 5.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 4, the range hood in the present embodiment includes a housing 3, a filter fan 1 and a fume collecting hood 4, the filter fan 1 is disposed in the housing 3, and the fume collecting hood 4 is disposed at a lower port of the housing 3 and has an air inlet. The outside of the filter fan 1 is provided with a front cover plate 5, and a gap is reserved between the front end of the filter screen cylinder 2 and the front cover plate 5.
As shown in fig. 5 to 7, the filter fan 1 comprises a filter screen barrel 2, a volute 13, a motor 11 and an impeller 12 which are arranged in the volute 13, wherein the volute 13 is provided with an air inlet, an output shaft 111 of the motor 11 is connected with the impeller 12, the impeller 12 is arranged opposite to the air inlet of the volute 13, the rear end of the filter screen barrel 2 is connected with the output shaft 111 of the motor 11 and can rotate together with the impeller 12, and part of the filter screen barrel 2 extends out of the air inlet of the volute 13. The outer side of the filter screen cylinder 2 is not contacted with the inner ring at the front end of the impeller 12.
The middle part of the impeller 12 is provided with a wheel disc 14 connected with an output shaft 111, the rear end of the filter screen cylinder 2 is provided with a mounting chassis 21, and the mounting chassis 21 is connected with and arranged on the front end surface of the wheel disc 14. Specifically, the middle part of the mounting chassis 21 is provided with a through hole, and the lock nut 15 is penetrated through the through hole and connected to the wheel disc 14. The mounting chassis 21 is provided with a plurality of air outlet holes 211 around the through hole.
The radial length of the rear end of the filter screen cylinder 2 in this embodiment is smaller than the radial length of the front end to be flared. The conical surface that expands outward has bigger filtration area, and during operation, the oil smoke is before getting into the impeller, and the conical surface that first passes through the filter screen section of thick bamboo is once filtered by outside inwards, and then the oil smoke flows to the impeller direction by the inside of conical surface again, and the secondary dynamic filtration of filter screen section of thick bamboo conical surface is passed through, consequently, although individual layer filter screen face, but can realize that the oil smoke is filtered through twice dynamic net, and the filter effect further promotes.
The front end of the filter screen cylinder 2 is provided with an axial air inlet port. The single-hole area of the filter mesh on the filter screen cylinder 2 is 40mm 2 ～400mm 2 . The filter mesh on the filter screen cylinder 2 is diamond, round, regular hexagon, ellipse or square. The penetration rate of the filter screen cylinder 2 is 0.35-0.7.
Claims (3)
1. The utility model provides a filter fan, including spiral case (13) and locate motor (11) and impeller (12) in spiral case (13), aforementioned spiral case (13) have the air intake, the output shaft (111) of aforementioned motor (11) are connected with impeller (12), aforementioned impeller (12) are just to the air intake arrangement of spiral case (13), characterized by that this fan still includes filter screen section of thick bamboo (2), this filter screen section of thick bamboo (2) rear end is connected with output shaft (111) of motor (11) and can rotate together with impeller (12), aforementioned filter screen section of thick bamboo (2) stretches out the air intake of spiral case (13);
the middle part of the impeller (12) is provided with a wheel disc (14) connected with an output shaft (111), the rear end of the filter screen cylinder (2) is provided with a mounting chassis (21), and the mounting chassis (21) is connected with the front end face of the wheel disc (14);
the middle part of the mounting chassis (21) is provided with a through hole, and a lock nut (15) is arranged through the through hole and connected to the wheel disc (14);
the mounting chassis (21) is provided with a plurality of air outlet holes (211) around the through holes;
the radial length of the rear end of the filter screen cylinder (2) is smaller than that of the front end, and the filter screen cylinder is flared;
an axial air inlet port is formed at the front end of the filter screen cylinder (2);
the single-hole area of the filtering mesh holes on the filtering screen barrel (2) is 40mm 2 ～400mm 2 ；
The filter meshes on the filter screen cylinder (2) are diamond, round, regular hexagon, ellipse or square;
the perforation rate of the filter screen cylinder (2) is 0.35-0.7.
2. A range hood with the filter fan according to claim 1, comprising a housing (3), the filter fan (1) and a fume collecting hood (4), wherein the filter fan (1) is arranged in the housing (3), and the fume collecting hood (4) is arranged at the lower port of the housing (3) and is provided with an air inlet.
3. The range hood according to claim 2, characterized in that a front cover plate (5) is arranged on the outer side of the filter fan (1), and a gap is arranged between the front end of the filter screen cylinder (2) and the front cover plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711334797.9A CN109959035B (en) | 2017-12-14 | 2017-12-14 | Filter fan and range hood with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711334797.9A CN109959035B (en) | 2017-12-14 | 2017-12-14 | Filter fan and range hood with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109959035A CN109959035A (en) | 2019-07-02 |
| CN109959035B true CN109959035B (en) | 2023-11-17 |
Family
ID=67017462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711334797.9A Active CN109959035B (en) | 2017-12-14 | 2017-12-14 | Filter fan and range hood with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109959035B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566174A (en) * | 2009-05-20 | 2009-10-28 | 宁波方太厨具有限公司 | Impeller structure of centrifugal lampblack filter |
| CN202630169U (en) * | 2012-02-29 | 2012-12-26 | 深圳市火王燃器具有限公司 | Novel oil smoke separation mesh and smoke exhauster |
| CN103968435A (en) * | 2013-01-29 | 2014-08-06 | 卢晓明 | Oil filtering impeller of range hood |
| CN205174507U (en) * | 2015-12-01 | 2016-04-20 | 广州市圣南通风设备有限公司 | Range hood |
| CN206222427U (en) * | 2016-12-01 | 2017-06-06 | 张敬才 | Cooking fume purification blower |
| CN107062330A (en) * | 2017-04-11 | 2017-08-18 | 李鹃 | Range hood |
-
2017
- 2017-12-14 CN CN201711334797.9A patent/CN109959035B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566174A (en) * | 2009-05-20 | 2009-10-28 | 宁波方太厨具有限公司 | Impeller structure of centrifugal lampblack filter |
| CN202630169U (en) * | 2012-02-29 | 2012-12-26 | 深圳市火王燃器具有限公司 | Novel oil smoke separation mesh and smoke exhauster |
| CN103968435A (en) * | 2013-01-29 | 2014-08-06 | 卢晓明 | Oil filtering impeller of range hood |
| CN205174507U (en) * | 2015-12-01 | 2016-04-20 | 广州市圣南通风设备有限公司 | Range hood |
| CN206222427U (en) * | 2016-12-01 | 2017-06-06 | 张敬才 | Cooking fume purification blower |
| CN107062330A (en) * | 2017-04-11 | 2017-08-18 | 李鹃 | Range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109959035A (en) | 2019-07-02 |
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