CN116428622A - Noise reduction structure of range hood - Google Patents
Noise reduction structure of range hood Download PDFInfo
- Publication number
- CN116428622A CN116428622A CN202210014272.1A CN202210014272A CN116428622A CN 116428622 A CN116428622 A CN 116428622A CN 202210014272 A CN202210014272 A CN 202210014272A CN 116428622 A CN116428622 A CN 116428622A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- cavity
- range hood
- wind shielding
- cover plate
- 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
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 239000000779 smoke Substances 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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
-
- 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
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Air-Flow Control Members (AREA)
Abstract
The utility model provides a structure of making an uproar falls in range hood, includes cavity and installs the last cavity at cavity top down, and cavity top is opened down has the air outlet, goes up the cavity and including the air inlet apron, and air inlet apron bottom forms the air intake that is linked together with the air outlet, and cavity top is formed with the connecting portion that is connected with the air inlet apron down, its characterized in that: the air inlet cover plate is arranged on the inner side of the connecting part, the connecting part comprises a left connecting part and a right connecting part, an air inlet gap with a downward opening is formed between the left side and the right side of the air inlet cover plate and the connecting part on the corresponding side, a wind shielding piece is arranged on the air inlet cover plate or on the connecting part, and the wind shielding piece is used for blocking air flow blown out by the air outlet from flowing into the air inlet gap. The invention has the advantages that: the air inlet cover plate of the upper cavity of the noise reduction structure of the range hood is arranged on the inner side of the connecting part of the lower cavity, and the wind shielding piece can prevent air flow blown out from the air outlet from flowing into an air inlet gap between the air inlet cover plate and the connecting part of the lower cavity, so that air flow loss can be reduced, and noise is further reduced.
Description
Technical Field
The invention relates to a range hood, in particular to a noise reduction structure of the range hood.
Background
The range hood has become one of the indispensable kitchen appliances in modern families. The prior range hood generally comprises an upper cavity and a lower cavity, wherein the upper cavity is provided with a range hood, an air inlet cavity is formed in the lower cavity, an air outlet is formed in the top of the lower cavity, an air inlet is formed in the bottom of the upper cavity, and the upper cavity is arranged at the top of the lower cavity when being arranged, so that the air outlet of the lower cavity is in butt joint with the air inlet of the upper cavity. When the smoke exhaust ventilator works, under the action of the smoke exhaust ventilator, the smoke exhaust ventilator sucks the smoke flow into the air inlet cavity, and then discharges the smoke flow into the smoke pipe through the smoke outlet of the upper cavity. Generally, because the upper cavity is assembled with the lower cavity from top to bottom, the air current can flow to the assembly junction through the gap flow direction between the upper cavity and the lower cavity to cause the air current loss, produce the noise, and then influence user experience. At present, people generally come the noise reduction through the mode of installing amortization cotton, but amortization cotton not only cost is higher, pastes amortization cotton moreover and needs artifical manual installation, extravagant human cost. In view of the above, there is a need to further improve the noise reduction structure of the existing range hood.
Disclosure of Invention
The invention aims to solve the technical problem of providing a noise reduction structure of a range hood capable of effectively reducing air flow loss and noise.
The technical scheme adopted for solving the technical problems is as follows: this range hood's structure of making an uproar falls, including lower cavity and the last cavity of installing at lower cavity top, it has the air outlet to open at lower cavity top, go up the cavity including the air inlet apron, air inlet apron bottom forms the air intake that is linked together with the air outlet, lower cavity top be formed with the connecting portion that the air inlet apron is connected, its characterized in that: the air inlet cover plate is arranged on the inner side of the connecting part, the connecting part comprises a left connecting part and a right connecting part, an air inlet gap with a downward opening is formed between the left side and the right side of the air inlet cover plate and the connecting part on the corresponding side, a wind shielding piece is arranged on the air inlet cover plate or on the connecting part, and the wind shielding piece is used for blocking air flow blown out by the air outlet from flowing into the air inlet gap.
Preferably, the outer sides of the left connecting part and the right connecting part are provided with lower connecting pieces, the left outer side wall and the right outer side wall of the air inlet cover plate are provided with upper connecting pieces, and the upper connecting pieces and the lower connecting pieces are detachably connected.
The upper connecting piece and the lower connecting piece can have various connecting structures, preferably, the lower connecting piece is provided with a hook hole, the upper connecting piece is provided with a hook, and the hook is propped against the upper edge of the hook hole to enable the lower connecting piece to be hung on the upper connecting piece.
Still preferably, the lower connector is provided with an outer mounting hole, the outer mounting hole is located below the hook hole, the connecting part on the corresponding side of the lower cavity is provided with an inner mounting hole, the bolt passes through the inner mounting hole and the outer mounting hole to fix the lower connector on the connecting part of the lower cavity, the left side wall and the right side wall of the air inlet cover plate are provided with concave parts for avoiding the bolt, and the air inlet gap is formed between the concave parts and the connecting part on the corresponding side.
In order to prevent air flow from flowing into the air inlet gap, the wind shielding piece is arranged on the inner sides of the left connecting part and the right connecting part, the upper part of the wind shielding piece is provided with a bending part which bends inwards, the bending part shields the air inlet gap, and the vertical projection of the concave part falls onto the bending part.
In order to further reduce noise, the lower part inside wall of the wind shielding piece is convexly provided with guide ribs, the guide ribs are arranged up and down, and the guide ribs are distributed at intervals along the front-back direction.
Further preferably, the lower portion of the wind shielding member is attached to the inner walls of the left and right connecting portions. In this way, the air flow loss is advantageously reduced.
Further preferably, the lower part of the wind shielding member is provided with a vertical part and an inclined part extending outwards from the lower edge of the vertical part, the lower part of the flow guiding rib is arranged on the inclined part, and the upper part of the flow guiding rib is arranged on the vertical part. After the structure is adopted by the flow guide rib, the flow guide rib is more beneficial to air flow guide and noise reduction.
The wind shielding piece can have various structures, preferably, the wind shielding piece is U-shaped, and the left and right side walls of the wind shielding piece are respectively arranged on the left connecting part and the right connecting part, and the rear side wall of the wind shielding piece is arranged on the rear cover plate of the lower cavity.
Preferably, in any of the above schemes, a smoke exhaust fan is installed in the upper cavity.
Compared with the prior art, the invention has the advantages that: the air inlet cover plate of the upper cavity of the noise reduction structure of the range hood is arranged on the inner side of the connecting part of the lower cavity, and the wind shielding piece can prevent air flow blown out from the air outlet from flowing into an air inlet gap between the air inlet cover plate and the connecting part of the lower cavity, so that air flow loss can be reduced, and noise is further reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a schematic view of another angle of an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of portion B of FIG. 4;
FIG. 6 is a schematic view of a wind shield according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of an embodiment of the present invention;
fig. 8 is an enlarged schematic view of a portion C in fig. 7.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 8, the range hood of this embodiment is of an up-down split structure, and specifically includes a lower cavity 1 and an upper cavity 2 mounted at the top of the lower cavity 1, an air outlet is opened at the top of the lower cavity 1, an air inlet cavity is provided in the lower cavity 1, an oil smoke exhaust fan 7 is mounted in the upper cavity 2, the upper cavity 2 includes an air inlet cover plate 21, an air inlet communicated with the air outlet is formed at the bottom of the air inlet cover plate 21, a connecting portion connected with the air inlet cover plate 21 is provided at the top of the lower cavity 1, and the air inlet cover plate 21 is mounted on the connecting portion during mounting. The structure is the same as the installation structure of the upper and lower cavities of the existing upper and lower split type range hood, and will not be described here.
In this embodiment, the air intake cover 21 is disposed on the inner side of the connection portion, the connection portion includes a left connection portion 11 and a right connection portion 12, a left air intake gap 3 with a downward opening is formed between the left side of the air intake cover 21 and the left connection portion 11, and a right air intake gap 3 with an upward opening is formed between the right side of the air intake cover 12 and the right connection portion 12. The air inlet gap 3 is arranged, and air flows into the air inlet gap 3 to generate air flow loss and noise, so that the noise reduction structure of the range hood is provided with the wind shielding piece 4 on the air inlet cover plate 21, and the wind shielding piece 4 can prevent the air flow blown out from the air outlet from flowing into the air inlet gap 3, thereby reducing working noise.
In this embodiment, the upper cavity 2 is detachably connected with the lower cavity 1, and the specific installation structure is as follows:
the outer sides of the left connecting part 11 and the right connecting part 12 of the lower cavity 1 are provided with lower connecting pieces 6, and the left outer side wall and the right outer side wall of the air inlet cover plate 21 are provided with upper connecting pieces 5. The lower connecting piece 6 is provided with a hook hole 61, the upper connecting piece 5 is provided with a hook 51, and the hook 51 is propped against the upper edge of the hook hole 61 to enable the lower connecting piece 6 to be hung on the upper connecting piece 5. Thereby, the upper connector 5 and the lower connector 6 are detachably connected, so that the lower chamber 1 is hung on the upper chamber 2.
In this embodiment, an outer mounting hole 62 is formed in the lower connector 6, the outer mounting hole 62 is located below the hooking hole 61, an inner mounting hole 13 is formed in a connecting portion of the corresponding side of the lower cavity 1, and the bolt 8 passes through the inner mounting hole 13 and the outer mounting hole 62 to fix the lower connector 6 to the connecting portion of the corresponding side of the lower cavity 1. The left and right side walls of the intake cover 21 are formed with concave portions 22 for avoiding the bolts 8, and an intake gap 3 is formed between the concave portions 22 and the connection portions on the corresponding sides.
In this embodiment, the wind shielding member 4 shields the air inlet gap 3, so as to prevent air flow from entering the air inlet gap 3, thereby reducing air flow noise. As shown in fig. 6, the wind shielding member 4 is U-shaped, the left and right side walls of the wind shielding member 4 are respectively mounted on the left and right connecting portions 11 and 12, and the rear side wall of the wind shielding member 4 is mounted on the lower cavity rear cover plate 14. The lower part of the wind shielding member 4 is attached to the lower chamber 1, and there is no installation gap.
As shown in fig. 7 and 8, the left and right side walls of the wind shielding member 4 each have a bent portion 41 bent inward, the bent portion 41 can shield the air intake gap 3, and the vertical projection of the concave portion 22 falls onto the bent portion 41. In this way, when the air flow flows from bottom to top, the air flow does not flow into the air inlet gap 3 due to the bending part 41 of the wind shielding piece 4, and does not flow to the reverse buckling connection position of the upper connecting piece 5 and the lower connecting piece 6, so that the air flow loss can be reduced, and the noise can be reduced.
In addition, the lower inner side wall of the left side and the lower inner side wall of the right side of the wind shielding member 4 are respectively provided with a flow guiding rib 42 in a protruding manner, the flow guiding ribs 42 are arranged up and down, and the flow guiding ribs 42 are distributed at intervals along the front-rear direction. The lower part of the wind shielding member 4 has a vertical part 43 and an inclined part 44 extending obliquely outward to the lower part of the vertical part, the lower part of the deflector rib 42 is provided on the inclined part 44, and the upper part of the deflector rib 42 is provided on the vertical part 43. When the airflow passes through the wind shielding piece 4, the airflow dispersing phenomenon can be generated due to the abrupt change of the section of the wind shielding piece 4, and the flow guiding ribs 42 can play a role in dispersing the airflow, so that the noise is further reduced.
Claims (10)
1. The utility model provides a structure of making an uproar falls in range hood, includes cavity (1) and installs cavity (2) on cavity top down, it has the air outlet to open at cavity (1) top down, last cavity (2) are including air inlet apron (21), air inlet apron (21) bottom forms the air intake that is linked together with the air outlet, cavity (1) top down be formed with the connecting portion that air inlet apron (21) are connected, its characterized in that: the air inlet cover plate (21) is arranged on the inner side of the connecting portion, the connecting portion comprises a left connecting portion (11) and a right connecting portion (12), an air inlet gap (3) with a downward opening is formed between the left side and the right side of the air inlet cover plate (21) and the connecting portion on the corresponding side, a wind shielding piece (4) is arranged on the air inlet cover plate (21) or on the connecting portion, and the wind shielding piece (4) is used for blocking air flow blown out by an air outlet to flow into the air inlet gap (3).
2. The noise reduction structure of a range hood according to claim 1, wherein: the outer sides of the left connecting part (11) and the right connecting part (12) are provided with lower connecting pieces (5), the left outer side wall and the right outer side wall of the air inlet cover plate (21) are provided with upper connecting pieces (6), and the upper connecting pieces (5) are detachably connected with the lower connecting pieces (6).
3. The noise reduction structure of a range hood according to claim 2, wherein: the lower connecting piece (6) is provided with a hook hole (61), the upper connecting piece (5) is provided with a hook (51), and the hook (51) is propped against the upper edge of the hook hole (61) to enable the lower connecting piece (6) to be hung on the upper connecting piece (5).
4. A noise reduction structure of a range hood according to claim 3, wherein: an outer side mounting hole (62) is formed in the lower connecting piece (6), the outer side mounting hole (62) is located below the hook hole (61), an inner side mounting hole (13) is formed in a connecting portion of the corresponding side of the lower cavity (1), a bolt (8) penetrates through the inner side mounting hole (13) and the outer side mounting hole (62) to fix the lower connecting piece (6) on the connecting portion of the lower cavity (1), concave portions (22) for avoiding the bolt (8) are formed in the left side wall and the right side wall of the air inlet cover plate (21), and an air inlet gap (3) is formed between the concave portions (22) and the connecting portion of the corresponding side.
5. The noise reduction structure of a range hood according to claim 4, wherein: the wind shielding piece (4) is installed on the inner sides of the left connecting portion (11) and the right connecting portion (12), a bending portion (41) which bends inwards is arranged on the upper portion of the wind shielding piece (4), the air inlet gap (3) is covered by the bending portion (41), and the vertical projection of the concave portion (22) falls onto the bending portion (41).
6. The noise reduction structure of a range hood according to claim 5, wherein: the wind shield is characterized in that the inner side wall of the lower part of the wind shield (4) is convexly provided with guide ribs (42), the guide ribs (42) are arranged up and down, and the guide ribs (42) are distributed at intervals along the front-back direction.
7. The noise reduction structure of a range hood according to claim 6, wherein: the lower part of the wind shielding piece (4) is attached to the inner walls of the left connecting part (11) and the right connecting part (12).
8. The noise reduction structure of a range hood according to claim 6, wherein: the lower part of the wind shielding piece (4) is provided with a vertical part (43) and an inclined part (44) extending downwards to the vertical part along the inclined direction, the lower part of the flow guiding rib (42) is arranged on the inclined part (44), and the upper part of the flow guiding rib (42) is arranged on the vertical part (43).
9. The noise reduction structure of a range hood according to claim 1, wherein: the wind shielding piece (4) is U-shaped, the left side wall and the right side wall of the wind shielding piece (4) are respectively arranged on the left connecting part (11) and the right connecting part (12), and the rear side wall of the wind shielding piece (4) is arranged on the rear cover plate (14) of the lower cavity.
10. The noise reduction structure of a range hood according to any one of claims 1 to 7, wherein: an oil smoke suction fan (7) is arranged in the upper cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014272.1A CN116428622A (en) | 2022-01-04 | 2022-01-04 | Noise reduction structure of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014272.1A CN116428622A (en) | 2022-01-04 | 2022-01-04 | Noise reduction structure of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116428622A true CN116428622A (en) | 2023-07-14 |
Family
ID=87093133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210014272.1A Pending CN116428622A (en) | 2022-01-04 | 2022-01-04 | Noise reduction structure of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116428622A (en) |
-
2022
- 2022-01-04 CN CN202210014272.1A patent/CN116428622A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210861270U (en) | Fume exhaust fan | |
| CN108980947B (en) | Fume exhaust fan | |
| EP2699849B1 (en) | Fumes suction and/or filtering hood, in particular for a household kitchen unit | |
| CN116428622A (en) | Noise reduction structure of range hood | |
| CN217004585U (en) | Noise reduction structure of range hood | |
| CN101881474B (en) | Novel rectifying noise-reduction close-suction range hood | |
| CN217209499U (en) | Fume exhaust fan | |
| JP4398899B2 (en) | Heat exchanger exhaust duct | |
| CN217440365U (en) | Fume exhaust fan | |
| CN217154267U (en) | Smoke ventilator and smoke collecting cavity thereof | |
| CN211822559U (en) | Fume exhaust fan | |
| CN217737293U (en) | Smoke guide plate and integrated stove with same | |
| CN219199296U (en) | Flow guiding and noise reducing structure of range hood | |
| CN221375771U (en) | Roof fixed knot constructs and cigarette machine | |
| CN214841056U (en) | Front baffle structure of air box of smoke exhaust ventilator | |
| CN220452238U (en) | Ventilator with compact structure | |
| CN214791326U (en) | Fume exhaust fan | |
| CN218599816U (en) | Aircraft nose subassembly and integrated kitchen | |
| CN220083139U (en) | Smoke exhaust ventilator with lighting function | |
| JP3520712B2 (en) | Air conditioner | |
| CN216790297U (en) | Fume exhaust fan | |
| TWI839844B (en) | Split-type rang hood with smoke collecting and guiding structure | |
| CN220152808U (en) | Tuyere plate and range hood | |
| CN215336530U (en) | Back air inlet type range hood | |
| CN216790287U (en) | Fume exhaust fan |
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 |