CN110043937B - Side-suction type range hood - Google Patents
Side-suction type range hood Download PDFInfo
- Publication number
- CN110043937B CN110043937B CN201910354969.1A CN201910354969A CN110043937B CN 110043937 B CN110043937 B CN 110043937B CN 201910354969 A CN201910354969 A CN 201910354969A CN 110043937 B CN110043937 B CN 110043937B
- Authority
- CN
- China
- Prior art keywords
- fan
- air inlet
- panel
- range hood
- inlet
- 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
- 239000000779 smoke Substances 0.000 claims description 19
- 239000003517 fume Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000746 purification Methods 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
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Abstract
The invention discloses a side-suction type range hood, which comprises a shell, a panel arranged on the front side of the shell and a fan arranged in the shell, wherein a first air inlet is formed in the panel, and the fan is provided with a second air inlet, and is characterized in that: the center of the second air inlet of the fan is offset downwards relative to the center line X of the first air inlet to form an actual air inlet of the fan, the length d0 between the upper edges of the first air inlets and the second air inlets corresponds to the length d1 between the lower edges of the first air inlets and the second air inlets, and d1 is larger than d0. Through the center of the air inlet of the fan is offset downwards relative to the center line of the air inlet of the panel, the lower edge of the air inlet of the panel can be utilized to cut off the air inlet vortex, and the wind noise of the vortex is effectively reduced.
Description
Technical Field
The invention relates to the field of oil fume purification, in particular to a side-suction type range hood.
Background
The range hood has become one of the indispensable kitchen appliances in modern families. The general range hood comprises a top suction type range hood and a side suction type range hood, and the side suction type range hood absorbs most of oil smoke which is closer to a cooking bench in an arc line mode by utilizing the vortex wind pressure principle, so that adverse effects on human health can be reduced, and a power source is closer to the cooking bench, so that the suction effect of the power source is basically not reduced.
A side-draft type range hood commonly used, such as a side-draft type range hood disclosed in China patent application No. 201710263663.6, which is convenient to maintain and capable of preventing smoke from escaping, comprises a shell and a front panel, wherein a smoke suction port is arranged on the front panel, a lifting upper smoke baffle and a lifting lower smoke baffle are arranged on the front surface of the front panel, and two independent driving mechanisms for respectively driving the upper smoke baffle and the lower smoke baffle are arranged in the shell. This square inlet is generally prone to producing squeal sounds due to the rapid wind speeds of the incoming air.
In order to solve the above problems, one way is to change the inlet into a circular shape, such as a noise reduction device of a side-draught range hood disclosed in the chinese patent application No. 201610790408.2, which comprises a fume collecting hood provided with an air inlet, a choke ring arranged at the inlet of the air inlet and connected with the fume collecting hood by screws, and a noise reduction air deflector assembly, wherein the change causes the appearance of the range hood to be changed, which is not expected; in addition, the width of the smoke baffle is increased, so that the power of the movement mechanism is increased and the cost is increased; or the gap between the smoke baffle plate and the oil guide plate in the smoke baffle plate is increased, so that the material consumption of the whole machine is increased, the cost is increased, and the front-back distance of the whole machine is also increased, thereby the range hood is caused to shield the sight of a user.
In addition, the fan system is improved and fixed on the fan frame, so that the distance between the smoke baffle and the inlet of the fan is increased, and parts and cost are increased due to the structure.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a side-suction type range hood which can effectively reduce vortex wind noise.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a side-draft range hood, includes the casing, sets up at the panel of casing front side and sets up the fan in the casing, first air intake has been seted up on the panel, the fan has second air intake, its characterized in that: the center of the second air inlet of the fan is offset downwards relative to the center line X of the first air inlet to form an actual air inlet of the fan, the length d0 between the upper edges of the first air inlets and the second air inlets corresponds to the length d1 between the lower edges of the first air inlets and the second air inlets, and d1 is larger than d0.
In order to keep the appearance coordinated, the value range of d1 is: d1>20mm; or the diameter ratio of d1 to the impeller of the fan is 0.7-0.9.
In order to be convenient for guide grease in the casing get into the oil cup of casing bottom, be provided with the oil guide plate between fan and the panel, the oil guide plate includes the plate body, the import has been seted up in the centre of plate body, the import corresponds the adaptation with the second air intake of fan.
In order to guide the air flow to the direction which does not influence the inlet air flow, thereby reducing noise, the position of the plate body close to the periphery is towards the middle and protrudes towards the direction away from the fan to form an annular radial surface, the radial inner periphery of the radial surface protrudes towards the fan axially to form a first flanging, and the radial inner periphery of the radial surface and the first flanging form the inlet.
For being convenient for comb the air current for it is even to admit air, avoids producing the howling still be provided with the screen panel between panel and the oil guide plate, the screen panel corresponds with the import of the first air intake of panel and oil guide plate.
In order to control the air flow not to excessively flow to the shell in the flowing process, the air flow disorder and vortex air flow formation in the shell are avoided, so that noise and howling are controlled, and the periphery of the plate body of the oil guide plate is provided with a second flanging protruding towards the panel.
For simplifying the structure, the fan still includes the spiral case, the second air intake forms on the spiral case, the oil guide plate is fixed with spiral case and the panel connection of fan respectively, the top of spiral case and the top of casing of fan are connected, the rear portion of spiral case of fan is connected fixedly through support and the rear portion of casing.
Compared with the prior art, the invention has the advantages that: the center of the air inlet of the fan is offset downwards relative to the center line of the air inlet of the panel, so that the air inlet vortex can be cut off by utilizing the lower edge of the air inlet of the panel, and the wind noise of the vortex is effectively reduced; through the flanging in the middle of the oil guide plate, the air flow can be guided to the direction which does not influence the inlet air flow, so that the noise is further reduced; the flanging on the periphery of the oil guide plate can control the airflow not to excessively flow to the shell in the flowing process, so that the airflow in the shell is prevented from being disordered and vortex airflow is prevented from being formed, and noise and howling are controlled; through set up the screen panel in the panel rear side, can comb the air current that gets into by the air intake of panel for it is even to admit air.
Drawings
Fig. 1 is a schematic view of a range hood according to an embodiment of the present invention;
fig. 2 is a schematic front view of a hidden smoke baffle, a mesh enclosure and an oil guide plate of the range hood according to an embodiment of the present invention;
fig. 3 is a sectional view of a range hood according to an embodiment of the present invention;
fig. 4 is a schematic view of an oil guide plate of a range hood according to an embodiment of the present invention;
fig. 5 is a sectional view of an oil guide plate of a range hood according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an actual air inlet of a fan of the range hood according to the embodiment of the invention;
fig. 7 is a schematic diagram of an actual air inlet of a fan of a range hood according to the prior art.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1 to 3, a side-suction type range hood includes a housing 1, a panel 2 provided at a front side of the housing 1, and a blower 3 provided in the housing 1. The panel 2 is provided with a first air inlet 21, a smoke baffle plate 4 is arranged at the first air inlet 21, the upper end of the smoke baffle plate 4 is hinged with the panel 2 and can rotate relatively, and the lower end of the smoke baffle plate 4 is a free end, so that the first air inlet 21 can be opened or closed.
The first air inlet 21 is in a strip shape, if the center line X of the first air inlet 21 in the horizontal direction and the center of the second air inlet 31 of the fan 3 are set on the same horizontal plane, the actual air inlet of the fan 3 formed by the intersection of the first air inlet 21 and the second air inlet 31 will generate a vortex at the position of the lower right corner, as shown in fig. 7. Therefore, in the present embodiment, the center of the second air inlet 31 of the blower 3 is shifted downward relative to the center line X of the first air inlet 21, and the actual air inlet of the blower 3 is formed as shown in fig. 6.
The length d0 between the upper edges of the first air inlets 21 and the second air inlets 31 of the blower 3, the length d1 between the lower edges of the first air inlets 21 and the second air inlets 31 of the blower 3, and d1> d0, thereby ensuring the air volume because the upper semicircle air volume is more and the lower semicircle air volume is less at the inlet of the second air inlets 31 of the blower 3. Further, d1>20mm or 0.7 to 0.9 of the diameter of the impeller (not shown) of the blower 3. If the first air inlet 21 is too large, the panel 2 may be incongruous in appearance. In order to keep the appearance coordinated, the rotation moment of the smoke baffle 4 cannot be large (the cost of the electric movement mechanism is low, and the cost of the panel is also low), so that it is important to reasonably design the intersection form and the position. Through such setting, can utilize the lower border of first air intake 21 to take air vortex excision, effectively reduce the wind noise of vortex.
An oil guide plate 5 is arranged between the fan 3 and the panel 2. Referring to fig. 4 and 5, the oil guide plate 5 includes a plate body 51, and an inlet 52 is formed in the middle of the plate body 51 and is correspondingly adapted to the second air inlet 31 of the fan 3. The inlet 52 is formed such that an annular radial surface 521 is formed by projecting from a position of the plate 51 near the periphery in a direction away from the fan 3, and a radially inner periphery of the radial surface 521 is formed by projecting axially toward the fan 3 to form a first flange 522 (axial surface), and the first flange 522 is tapered by being inclined toward the middle between the directions of the fan 3. The radially inner periphery of the radial surface 521 in the first flange 522 forms the inlet 52 described above, which inlet 52 is similar to the structure of a conventional inlet ring of the fan 3. The first flange 522 serves to direct the air flow in a direction that does not affect the inlet air flow, thereby reducing noise.
When the above-described relative positions of the blower 3 and the panel 2 are adopted, howling may occur while improving wind noise because the flow velocity is too large and the distance between the first flange 522 and the panel 2 (the back panel may also be provided on the back surface of the panel 2, and in this case, the distance between the first flange 53 and the back panel) is too short. Therefore, a mesh enclosure 6 made of metal is further provided between the panel 2 and the oil guide plate 5, and is fixed to the back surface (or back plate) of the panel 2. Therefore, the air flow can be combed, so that the air inlet is uniform, and howling is avoided. The mesh enclosure 6 corresponds to the first air inlet 21 on the panel 2 and the inlet 52 on the oil guide plate 5, and the mesh area is larger than the actual air inlet area of the fan 3. In addition, a second flange 53 protruding toward the panel 2 is provided on the periphery of the plate body 51 of the oil guide plate 5 to control the air flow to the housing 1 excessively in the flow, thereby avoiding the turbulence of the air flow in the housing 1 and the formation of vortex air flow, and thus controlling noise and squeaking.
The oil guide plate 5 is respectively connected and fixed with a volute 32 (a second air inlet 31 is formed on the volute 32) of the fan 3 and the panel 2, the top of the volute 32 of the fan 3 is connected with the top of the shell 1, and the rear part of the volute 32 of the fan 3 is connected and fixed with the rear part of the shell 1 through a bracket 33.
The oil guide plate 5 is square as a whole, and the net cover 6 is square as a whole.
Claims (7)
1. The utility model provides a side-draught range hood, includes casing (1), panel (2) of setting in casing (1) front side and fan (3) of setting in casing (1), first air intake (21) have been seted up on panel (2), first air intake (21) department is provided with and keeps off smoke board (4), the upper end and the panel (2) of keeping off smoke board (4) are articulated and can rotate relatively, the lower extreme of keeping off smoke board (4) is the free end to can open or close first air intake (21); the fan (3) is provided with a second air inlet (31), and is characterized in that: the center of a second air inlet (31) of the fan (3) is offset downwards relative to the center line X of a first air inlet (21) to form an actual air inlet of the fan (3), the length d0 between the upper edge of the first air inlet (21) and the second air inlet (31) corresponds to the upper edge of the first air inlet, the length d1 between the lower edge of the first air inlet (21) and the second air inlet (31) corresponds to the lower edge of the first air inlet, and d1 is more than d0.
2. The side-suction type range hood according to claim 1, wherein: d1 is as follows: d1>20mm; or the diameter ratio of d1 to the impeller of the fan (3) is 0.7-0.9.
3. The side-suction type range hood according to claim 1 or 2, wherein: an oil guide plate (5) is arranged between the fan (3) and the panel (2), the oil guide plate (5) comprises a plate body (51), an inlet (52) is formed in the middle of the plate body (51), and the inlet (52) is correspondingly matched with a second air inlet (31) of the fan (3).
4. A side-draft range hood according to claim 3 wherein: the plate body (51) is arranged close to the periphery, protrudes towards the middle and away from the fan (3) to form an annular radial surface (521), the radial inner periphery of the radial surface (521) protrudes towards the fan (3) axially to form a first flanging (522), and the radial inner periphery of the radial surface (521) in the first flanging (522) forms the inlet (52).
5. The side-suction type range hood according to claim 4, wherein: a net cover (6) is further arranged between the panel (2) and the oil guide plate (5), and the net cover (6) corresponds to a first air inlet (21) of the panel (2) and an inlet (52) of the oil guide plate (5).
6. The side-suction type range hood according to claim 4, wherein: the periphery of the plate body (51) of the oil guide plate (5) is provided with a second flanging (53) protruding towards the panel (2).
7. A side-draft range hood according to claim 3 wherein: the fan (3) further comprises a volute (32), the second air inlet (31) is formed in the volute (32), the oil guide plate (5) is fixedly connected with the volute (32) of the fan (3) and the panel (2) respectively, the top of the volute (32) of the fan (3) is connected with the top of the shell (1), and the rear part of the volute (32) of the fan (3) is fixedly connected with the rear part of the shell (1) through the support (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354969.1A CN110043937B (en) | 2019-04-29 | 2019-04-29 | Side-suction type range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354969.1A CN110043937B (en) | 2019-04-29 | 2019-04-29 | Side-suction type range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110043937A CN110043937A (en) | 2019-07-23 |
| CN110043937B true CN110043937B (en) | 2024-01-16 |
Family
ID=67280179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354969.1A Active CN110043937B (en) | 2019-04-29 | 2019-04-29 | Side-suction type range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043937B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034091Y (en) * | 2007-04-30 | 2008-03-12 | 宁波方太厨具有限公司 | Fan housing of double air intake smoke exhaust ventilator |
| CN102980229A (en) * | 2012-11-19 | 2013-03-20 | 宁波方太厨具有限公司 | Oil guide structure of side-draft extractor hood |
| CN203454243U (en) * | 2013-08-26 | 2014-02-26 | 广东美的厨房电器制造有限公司 | Air inlet ring and range hood with same |
| CN107191987A (en) * | 2017-01-23 | 2017-09-22 | 宁波方太厨具有限公司 | There is the side extraction cooking fume extractor of the oil network for the oil network of range hood and application |
| CN108870483A (en) * | 2017-05-16 | 2018-11-23 | 青岛海尔智慧厨房电器有限公司 | A kind of range hood free of cleaning |
| CN108954453A (en) * | 2018-09-17 | 2018-12-07 | 广东海信家电有限公司 | A kind of side extraction cooking fume extractor and its control method |
| CN208475405U (en) * | 2018-05-24 | 2019-02-05 | 宁波方太厨具有限公司 | A kind of range hood |
| WO2019072059A1 (en) * | 2017-10-10 | 2019-04-18 | 杭州老板电器股份有限公司 | Fume collecting assembly, range hood, side suction range hood, range hood for two-sided fume collection and central air intake, range hood with partition, and central fume purification device |
| CN210107519U (en) * | 2019-04-29 | 2020-02-21 | 宁波方太厨具有限公司 | Side-draft range hood |
-
2019
- 2019-04-29 CN CN201910354969.1A patent/CN110043937B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201034091Y (en) * | 2007-04-30 | 2008-03-12 | 宁波方太厨具有限公司 | Fan housing of double air intake smoke exhaust ventilator |
| CN102980229A (en) * | 2012-11-19 | 2013-03-20 | 宁波方太厨具有限公司 | Oil guide structure of side-draft extractor hood |
| CN203454243U (en) * | 2013-08-26 | 2014-02-26 | 广东美的厨房电器制造有限公司 | Air inlet ring and range hood with same |
| CN107191987A (en) * | 2017-01-23 | 2017-09-22 | 宁波方太厨具有限公司 | There is the side extraction cooking fume extractor of the oil network for the oil network of range hood and application |
| CN108870483A (en) * | 2017-05-16 | 2018-11-23 | 青岛海尔智慧厨房电器有限公司 | A kind of range hood free of cleaning |
| WO2019072059A1 (en) * | 2017-10-10 | 2019-04-18 | 杭州老板电器股份有限公司 | Fume collecting assembly, range hood, side suction range hood, range hood for two-sided fume collection and central air intake, range hood with partition, and central fume purification device |
| CN208475405U (en) * | 2018-05-24 | 2019-02-05 | 宁波方太厨具有限公司 | A kind of range hood |
| CN108954453A (en) * | 2018-09-17 | 2018-12-07 | 广东海信家电有限公司 | A kind of side extraction cooking fume extractor and its control method |
| CN210107519U (en) * | 2019-04-29 | 2020-02-21 | 宁波方太厨具有限公司 | Side-draft range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110043937A (en) | 2019-07-23 |
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