CN106765406B - Near-suction type range hood - Google Patents
Near-suction type range hood Download PDFInfo
- Publication number
- CN106765406B CN106765406B CN201611255292.9A CN201611255292A CN106765406B CN 106765406 B CN106765406 B CN 106765406B CN 201611255292 A CN201611255292 A CN 201611255292A CN 106765406 B CN106765406 B CN 106765406B
- Authority
- CN
- China
- Prior art keywords
- air inlet
- guide vane
- guide vanes
- range hood
- air intake
- 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.)
- Active
Links
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Air-Flow Control Members (AREA)
Abstract
A near-suction type range hood comprises a fan outer cover, a box body and a fan system, wherein an air inlet is formed in the air inlet side of the box body, the length direction of the air inlet is consistent with the left-right direction of the box body, guide vanes are installed at the air inlet, the guide vanes are sequentially distributed at intervals from left to right to form a barrier of the air inlet, the guide vanes positioned in the middle area of the air inlet are fixed guide vanes with fixed opening angles, and the guide vanes positioned on the left side and the right side of the air inlet are movable guide vanes capable of adjusting the opening angles according to the size of smoke on the corresponding sides. The guide vanes of the near-suction range hood form a barrier of an air inlet, the fixed guide vanes are positioned in the middle, the movable guide vanes are positioned at the left side and the right side, and the movable guide vanes can adjust the opening angle of the movable guide vanes according to the smoke size of the corresponding side to enable the air inlet volume to be matched with the smoke size, so that the negative pressure distribution of the air inlet is adjusted, the air inlet flow is more uniform, and the oil smoke suction effect is better.
Description
Technical Field
The invention relates to a range hood, in particular to a near-suction range hood.
Background
The existing near-suction range hood generally comprises a fan outer cover and a box body connected below the fan outer cover, wherein a fan system is installed in the fan outer cover, a strip-shaped air inlet is formed in the front surface of the box body, and in addition, because a direct-suction mode that a fan inlet is positioned in the center of the box body is adopted, negative pressure is concentrated in the central area of the box body, so that the air inlet speed of the strip-shaped air inlet is uneven, the air inlet amount in the middle is large, the air inlet amounts on the left side and the right side are small, the control capability on oil smoke on the left side and the right side are weaker, the left side and the right side of the air inlet just face to a stove hole, and the area where the oil smoke is concentrated and rises is formed, so that the oil smoke absorption effect is poor. In addition, because the inlet of the fan is opposite to the user, the noise generated when the range hood works is relatively large.
In addition, the whole length of the near-suction range hood is generally larger than that of a kitchen range, and when the range hood works, the negative pressure is immediately reduced after the range hood leaves a certain distance from the air inlet. Considering that a common user uses a double-hole kitchen range in a family, when two pots are used simultaneously, for example, one side of the pot is used for cooking dishes while the other side is used for cooking rice, more oil smoke is generated at one side of the dish, and almost no oil smoke is generated at one side of the rice, but the left and right negative pressure distribution cannot be adjusted in the existing near-suction range hood, so that the phenomenon that the oil smoke is not sucked at the dish cooking side and the negative pressure at the rice cooking side is wasted can occur.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a near-suction range hood capable of rectifying the airflow at the air inlet, aiming at the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a near-suction range hood capable of adjusting the air intake at the corresponding side according to the smoke size and having a good smoke suction effect, in view of the above-mentioned current state of the art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: this nearly inhale formula range hood, including fan dustcoat, box and fan system, fan dustcoat below is located to the box, fan system locates in the fan dustcoat, the air inlet side of box is opened there is the air intake, and the length direction of air intake is unanimous with the box left and right sides direction, its characterized in that: the air inlet is provided with guide vanes which are sequentially distributed at intervals from left to right to form a barrier of the air inlet.
The technical solution adopted by the present invention to solve the second technical problem is as follows: the guide vanes positioned in the middle area of the air inlet are fixed guide vanes with fixed orientation angles, and the guide vanes positioned on the left side and the right side of the air inlet are movable guide vanes capable of adjusting the opening angles according to the sizes of smoke on the corresponding sides.
In order to reduce the direct-transmission noise of the fan, preferably, the orientation angle of the fixed guide vane located on the left side of the middle of the air inlet deflects from top to bottom to the left side, and the orientation angle of the fixed guide vane located on the right side of the middle of the air inlet deflects from top to bottom to the right side.
The fixed opening angle of the fixed guide vane can be in a certain range, and further preferably, the deflection angle of the fixed guide vane forms an included angle of 45-55 degrees with the plane where the end part of the air inlet is located.
Further preferably, a projection of a fan inlet of the fan system on a plane where the end of the air inlet is located in an area corresponding to the fixed guide vane.
In order to enable the movable guide vanes on the left side and the right side to be better matched with a left hearth and a right hearth of the gas stove, the movable guide vanes on the left side of the air inlet and the fixed guide vanes on the left side of the middle are arranged in a same-direction deflection mode, and the movable guide vanes on the right side of the air inlet and the fixed guide vanes on the right side of the middle are arranged in a same-direction deflection mode.
The opening angle of the movable guide vane can have various adjusting ranges, and preferably, the adjusting range of the opening angle of the movable guide vane forms an included angle of 20-75 degrees with the plane where the end part of the air inlet is located.
In order to enable the flow passages among the guide vanes to have a rectifying effect, the fixed guide vanes and the movable guide vanes are both wave-shaped vanes.
In order to enable the guide vanes to optimize the wake flow dragged out backwards, the inner side edges of the fixed guide vanes and the movable guide vanes are of an inner-outer concave-convex wave structure. Therefore, after the tail part of the guide vane is optimized, the noise reduction effect can be achieved.
Compared with the prior art, the invention has the advantages that: the guide vanes positioned at the air inlet of the near-suction range hood are sequentially distributed at intervals from left to right to form a barrier of the air inlet, wherein the guide vanes positioned in the middle area of the air inlet are fixed guide vanes, and the guide vanes positioned at the left side and the right side of the air inlet are movable guide vanes capable of adjusting the opening angle according to the smoke size of the corresponding side, so that the air inlet amount is matched with the smoke size, the negative pressure distribution of the air inlet is adjusted, the air inlet flow is more uniform, and the oil smoke absorption effect is better.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the embodiment of the present invention in a state where smoke is small on both the left and right sides;
FIG. 3 is a schematic structural diagram of the embodiment of the present invention in a state of large smoke on the left side;
fig. 4 is a schematic structural diagram of the embodiment of the present invention in a state of large smoke on the right side;
FIG. 5 is a schematic structural view of the embodiment of the present invention in a state where smoke is large on both left and right sides;
fig. 6 is a schematic structural view of a guide vane according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 5, the near-suction range hood in this embodiment includes a fan housing 1, a box 2 and a fan system 3, the box 2 is disposed below the fan housing 1, the fan system 3 is installed inside the fan housing 1, an air inlet 21 is opened on the air inlet side of the box 2, namely, the front side of the box, the air inlet 21 is rectangular, the length direction of the air inlet 21 is consistent with the left and right directions of the box 2, and the oil smoke enters the box 2 from the air inlet 21.
The air inlet 21 is provided with guide vanes which are vertically arranged, and the guide vanes are sequentially distributed at intervals from left to right to form a barrier of the air inlet 21. The guide vanes positioned in the middle area of the air inlet 21 are fixed guide vanes 4 with fixed orientation angles, the guide vanes positioned at the left side and the right side of the air inlet 21 are movable guide vanes 5, and the opening angles of the movable guide vanes 5 can be adjusted according to the size of smoke at the corresponding sides.
The fixed guide vanes 4 positioned on the left side of the middle of the air inlet 21 deflect towards the left side from top to bottom, and the fixed guide vanes 4 positioned on the right side of the middle of the air inlet 21 deflect towards the right side from top to bottom. And the deflection angle of the fixed guide vane 4 forms an included angle of 45 degrees to 55 degrees with the plane where the end part of the air inlet 21 is located. In this embodiment, the value of the deflection angle is 50 °, so that the direct-transmission noise of the fan can be reduced. In addition, the fixed guide vane 4 needs to have a sufficient coverage area, and a projection of a plane of the fan inlet 31 of the fan system 3 on the end of the air inlet 21 needs to be located in a region corresponding to the fixed guide vane 4.
In this embodiment, the opening directions of the movable guide vanes 5 on the left and right sides are opposite, specifically, the orientation angle of the movable guide vane 5 on the left side of the air inlet 21 is from top to bottom to the left side, and the orientation angle of the movable guide vane 5 on the right side of the air inlet 21 is from top to bottom to the right side. In addition, the adjusting range of the opening angle of the movable guide vane 5 is an included angle of 20 degrees to 75 degrees formed with the plane where the end of the air inlet 21 is located, and the adjustment of the opening angle of the left movable guide vane 5 and the adjustment of the opening angle of the right movable guide vane 5 are independent.
As shown in fig. 2, the opening angles of the left movable guide vane 5 and the right movable guide vane 5 are both 20 °.
As shown in fig. 3, the opening angle of the left movable guide vane 5 is 70 °, and the opening angle of the right movable guide vane 5 is 20 °.
As shown in fig. 4, the opening angle of the left movable guide vane 5 is 20 °, and the opening angle of the right movable guide vane 5 is 70 °.
As shown in fig. 5, the opening angles of the left movable guide vane 5 and the right movable guide vane 5 are both 70 °.
As shown in fig. 6, the fixed guide vanes 4 and the movable guide vanes 5 have the same shape and both adopt wave-shaped vanes, so that the flow passages between the adjacent guide vanes have a rectifying effect, and the inlet air flow is more uniform. In addition, the direction shown by an arrow A in fig. 6 is taken as the inner side, and the inner side edges of the fixed guide vane 4 and the movable guide vane 5 are of an inner-outer concave-convex wave structure, so that the wake flow dragged out by the vanes backwards is optimized, and the noise reduction effect is achieved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications or improvements may be made to the present invention without departing from the principle of the present invention, and these are considered to be within the scope of the present invention.
Claims (6)
1. The utility model provides a nearly inhale formula range hood, includes fan dustcoat (1), box (2) and fan system (3), fan dustcoat (1) below is located in box (2), fan system (3) are located in fan dustcoat (1), the air inlet side of box (2) is opened there is air intake (21), and the length direction of air intake (21) and box (2) control the direction unanimously, its characterized in that: guide vane is installed in air intake (21), just guide vane is from left right side interval distribution in proper order and forms the barrier of air intake (21), and the guide vane that is located air intake (21) middle zone is for fixed guide vane (4) towards the angle, and the guide vane that is located air intake (21) left and right sides is for can adjusting movable guide vane (5) of opening the angle according to the smog size that corresponds the side, and the orientation angle that is located air intake (21) middle left side fixed guide vane (4) is deflected to the left side for top-down, and the orientation angle that is located air intake (21) middle right side fixed guide vane (4) is deflected to the right side for top-down, fan entry (31) of fan system (3) is in the planar projection in air intake (21) tip place is located the region that fixed guide vane (4) correspond.
2. The near suction range hood according to claim 1, wherein: the deflection angle of the fixed guide vane (4) and the plane of the end part of the air inlet (21) form an included angle of 45-55 degrees.
3. The near suction range hood according to claim 1, wherein: the movable guide vane (5) positioned on the left side of the air inlet (21) and the fixed guide vane (4) positioned on the left side of the middle are arranged in a same-direction deflection mode, and the movable guide vane (5) positioned on the right side of the air inlet (21) and the fixed guide vane (4) positioned on the right side of the middle are arranged in a same-direction deflection mode.
4. The near suction range hood according to claim 3, wherein: the adjusting range of the opening angle of the movable guide vane (5) and the plane where the end part of the air inlet (21) is located form an included angle of 20-75 degrees.
5. The near suction range hood according to any one of claims 1 to 3, wherein: the fixed guide vane (4) and the movable guide vane (5) are both wave-shaped vanes.
6. The near suction range hood according to any one of claims 1 to 3, wherein: the inner sides of the fixed guide vanes (4) and the movable guide vanes (5) are of a wave structure with concave and convex inner and outer sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255292.9A CN106765406B (en) | 2016-12-30 | 2016-12-30 | Near-suction type range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255292.9A CN106765406B (en) | 2016-12-30 | 2016-12-30 | Near-suction type range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106765406A CN106765406A (en) | 2017-05-31 |
| CN106765406B true CN106765406B (en) | 2022-10-21 |
Family
ID=58954978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611255292.9A Active CN106765406B (en) | 2016-12-30 | 2016-12-30 | Near-suction type range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106765406B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087336B (en) * | 2017-07-28 | 2024-05-14 | 宁波方太厨具有限公司 | Fume exhauster |
| CN109611927A (en) * | 2019-01-29 | 2019-04-12 | 珠海格力电器股份有限公司 | Smoke guiding sheet control method and device, range hood and readable storage medium |
| CN110425617B (en) * | 2019-07-31 | 2022-01-21 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN111288520B (en) * | 2020-03-18 | 2021-09-17 | 贵州工程应用技术学院 | Oil smoke disconnect-type purifies lampblack absorber |
| CN113446641B (en) * | 2021-06-18 | 2022-05-17 | 宁波方太厨具有限公司 | Range hood and working method |
| CN113639290B (en) * | 2021-08-31 | 2022-11-11 | 宁波方太厨具有限公司 | Fume exhaust fan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201527014U (en) * | 2009-10-10 | 2010-07-14 | 宁波方太厨具有限公司 | Range hood of underlying fan system arranged obliquely |
| CN204227496U (en) * | 2014-10-13 | 2015-03-25 | 宁波方太厨具有限公司 | Near-suction type oil smoke suction machine |
| CN205401175U (en) * | 2016-02-01 | 2016-07-27 | 宁波方太厨具有限公司 | Fan and adopt range hood of this fan |
| CN106016404A (en) * | 2016-07-06 | 2016-10-12 | 宁波方太厨具有限公司 | Range hood with auxiliary air inlet channel |
| CN106051870A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Top suction and side suction mixed range hood |
-
2016
- 2016-12-30 CN CN201611255292.9A patent/CN106765406B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201527014U (en) * | 2009-10-10 | 2010-07-14 | 宁波方太厨具有限公司 | Range hood of underlying fan system arranged obliquely |
| CN204227496U (en) * | 2014-10-13 | 2015-03-25 | 宁波方太厨具有限公司 | Near-suction type oil smoke suction machine |
| CN205401175U (en) * | 2016-02-01 | 2016-07-27 | 宁波方太厨具有限公司 | Fan and adopt range hood of this fan |
| CN106016404A (en) * | 2016-07-06 | 2016-10-12 | 宁波方太厨具有限公司 | Range hood with auxiliary air inlet channel |
| CN106051870A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Top suction and side suction mixed range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106765406A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106765406B (en) | Near-suction type range hood | |
| CN210662985U9 (en) | Fume exhauster | |
| CN204268537U (en) | A kind of range hood | |
| CN108980947B (en) | Fume exhaust fan | |
| CN210399070U (en) | Range hood with switchable air inlet | |
| CN103697511B (en) | Diffusion drainage device of range hood | |
| CN201034091Y (en) | Fan housing of double air intake smoke exhaust ventilator | |
| CN204963139U (en) | Air -conditioning outlet antisweat structure | |
| CN203240633U (en) | High-efficiency range hood with L-shaped smoke guide body | |
| CN102200144A (en) | Bladeless fan | |
| CN201202691Y (en) | Draught fan volute of cooking fume exhauster | |
| CN201277614Y (en) | Household kitchen electric integration stove with cold air curtain | |
| CN105546611A (en) | Smoke exhaust ventilator | |
| TW200600728A (en) | Range hood forming air curtain by indoor air | |
| CN201068900Y (en) | Two-sided air intaking fume exhauster fan housing | |
| CN211526519U (en) | Oil fume suction device for integrated cooker and integrated cooker | |
| CN113864847A (en) | Smoke exhaust assembly and integrated stove | |
| CN203478381U (en) | Side suction type range hood | |
| CN209042480U (en) | Side extraction cooking fume extractor | |
| WO2019148994A1 (en) | Range hood | |
| CN203730404U (en) | Fan heater with cross-flow fan | |
| CN202328450U (en) | Spiral case with flow stabilization and denoising functions | |
| CN219510860U (en) | Range hood and integrated kitchen | |
| JP6314950B2 (en) | Indoor unit | |
| CN219222502U (en) | Integrated kitchen range |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |