CN111089320A - Fume exhaust fan - Google Patents
Fume exhaust fan Download PDFInfo
- Publication number
- CN111089320A CN111089320A CN201911408967.2A CN201911408967A CN111089320A CN 111089320 A CN111089320 A CN 111089320A CN 201911408967 A CN201911408967 A CN 201911408967A CN 111089320 A CN111089320 A CN 111089320A
- Authority
- CN
- China
- Prior art keywords
- fan system
- air
- side wind
- circular arc
- main
- 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 abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 23
- 230000007704 transition Effects 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 235000019504 cigarettes Nutrition 0.000 abstract 1
- 230000000391 smoking effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 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
Abstract
The invention discloses a range hood, which comprises a fume collecting hood, a box body and a fan assembly, wherein the box body is arranged on the fume collecting hood, the fan component is arranged in the box body and comprises a main fan system, an auxiliary fan system and a motor, the main fan system and the auxiliary fan system are driven by the motor to coaxially rotate, the upper part of the fume collecting hood is provided with an air suction opening which is communicated with an air inlet of the main fan system, side air ducts are formed on two sides of the smoke collecting hood, a rotational flow surface for rotating airflow passing through the side air ducts is formed on the inner side of the side air ducts, exhaust holes are formed in the side air duct, a ventilating duct is arranged in the smoke collecting hood, and an air outlet of the auxiliary fan system is communicated with the side air duct through the ventilating duct. Has high effect of gathering the cigarette.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a range hood.
Background
When the traditional range hood inhales, the air suction range is a hemispherical area, and air in all directions is sucked indiscriminately. The air flow rate at the position of the air suction port is larger in the air suction mode, and the air flow rate far away from the air suction port is rapidly reduced along with the increase of the distance from the air suction port. Therefore, in a short distance below the air suction port, the upward speed of the air becomes very small, so that the upward suction force is insufficient, and the range hood is easily interfered by external factors, such as walking of people, the influence of factors which can disturb the air flow, such as the operation of a fan or cold air, and the like, so that the oil smoke or pollutants are dissipated along with the flowing of disturbed air flow, and the range hood has poor smoke collecting and smoking effects.
Disclosure of Invention
The invention aims to solve one of the problems in the prior art to a certain extent, and therefore the invention aims to provide a range hood with a high smoke collection effect.
The above purpose is realized by the following technical scheme:
the utility model provides a range hood, includes collection petticoat pipe, box and fan subassembly, the box sets up collection on the petticoat pipe, the fan subassembly set up in the box, the fan subassembly includes main fan system, vice fan system and motor, main fan system with vice fan system passes through the coaxial rotation of motor drive collection petticoat pipe upper portion is provided with the inlet scoop, the inlet scoop with the air intake intercommunication of main fan system the both sides of collection petticoat pipe form the side wind channel the inboard in side wind channel forms and is used for making the rotatory whirl face of its air current of flowing through be provided with the exhaust hole on the side wind channel be equipped with air pipe in the collection petticoat pipe, the air outlet of vice fan system passes through air pipe with the side wind channel is linked together.
As a further improvement of the present invention, the main blower system includes a main volute and a main wind wheel disposed in the main volute, the auxiliary blower system includes an auxiliary volute and an auxiliary wind wheel disposed in the auxiliary volute, the motor has a first output shaft and a second output shaft, the first output shaft is connected to the main wind wheel, the second output shaft is connected to the auxiliary wind wheel, and the main volute and the auxiliary volute are of an integral structure.
As a further improvement of the invention, a box body front cavity is formed between the front surface of the main fan system and a front plate of the box body, the lower end of the box body front cavity is communicated with an air suction opening of the fume collecting hood, the box body front cavity is communicated with an air inlet of the main fan system, and an air outlet of the main fan system is communicated with an air outlet seat arranged on the box body.
As a further improvement of the invention, a box body back cavity is formed between the back of the auxiliary fan system and a quilt plate of the box body, the upper end of the box body back cavity is communicated with an air inlet arranged on the top of the box body, and the box body back cavity is communicated with the air inlet of the auxiliary fan.
As a further improvement of the invention, the side air ducts are obliquely arranged from top to bottom and forwards on two sides of the smoke collecting hood, at least one row of exhaust holes which are vertically arranged and are exhausted forwards are arranged on the side air ducts, and the distance between the exhaust holes and the edge of the side air duct is less than 20 mm.
As a further improvement of the invention, the rotational flow surface is an arc surface formed by extending the side air duct to the front surface of the smoke collecting hood, and the cross section of the arc surface in the horizontal direction is linearly enlarged from bottom to top.
As a further improvement of the present invention, the side air duct includes a left side air duct and a right side air duct, the left side air duct and the right side air duct are respectively disposed on the left side and the right side of the smoke collecting hood, the left side air duct extends towards the front of the smoke collecting hood to form a left arc surface, the right side air duct extends towards the front of the smoke collecting hood to form a right arc surface, and a transition plane is formed between the left arc surface and the right arc surface.
As a further improvement of the present invention, the left arc surface and the right arc surface are curved in a direction away from the transition plane, the arc length of any horizontal section of the left arc surface and the right arc surface is a quarter of an arc, one end of the arc is tangent to the transition plane, and the other end of the arc is tangent to the air outlet direction of the air outlet hole.
As a further improvement of the present invention, an opening is provided at the top of the smoke collecting hood, the opening is communicated with an air outlet of the secondary fan system, an air inlet of the ventilation duct is communicated with the opening, and an air outlet of the ventilation duct is communicated with the first exhaust hole and the second exhaust hole.
As a further improvement of the invention, the ventilating duct is formed by connecting a plurality of hard pipes or combining a hose and an adapter.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the invention provides a range hood which is provided with a main fan system and an auxiliary fan system, wherein the main fan system is used for normally sucking oil smoke, the auxiliary fan system sucks clean air from the top of the range hood, and the clean air is blown out from exhaust holes on side air ducts at two sides of a smoke collecting cover through an internal ventilating duct.
Drawings
FIG. 1 is a schematic structural diagram of a range hood;
FIG. 2 is an exploded view of a range hood;
FIG. 3 is another exploded view of a range hood;
FIG. 4 is a further exploded view of a range hood;
FIG. 5 is a further exploded view of a range hood;
fig. 6 is a top schematic view of a range hood.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
Referring to fig. 1-6, the range hood of the present invention comprises a smoke collecting hood 1, a box body 2 and a fan assembly 3, the box body 2 is arranged on the fume collecting hood 1, the fan component 3 is arranged in the box body 2, the fan assembly 3 comprises a main fan system 31, an auxiliary fan system 32 and a motor 33, the main fan system 31 and the auxiliary fan system 32 are driven by the motor 33 to rotate coaxially, an air suction opening 12 is arranged at the upper part of the fume collecting hood 1, the air suction opening 12 is communicated with an air inlet of the main fan system 31, side air ducts 13 are formed at both sides of the fume collecting hood 1, a swirling surface 14 for swirling an air current flowing therethrough is formed at an inner side of the side air ducts 13, the side air duct 13 is provided with an exhaust hole 131, the fume collecting hood 1 is provided with a ventilating duct 16, the air outlet of the auxiliary fan system 32 is communicated with the side air duct 13 through the ventilation duct 16.
The main fan system 31 comprises a main volute 311 and a main wind wheel 312 arranged in the main volute 311, the auxiliary fan system 32 comprises an auxiliary volute 321 and an auxiliary wind wheel 322 arranged in the auxiliary volute 321, the motor 33 is provided with a first output shaft and a second output shaft, the first output shaft is connected with the main wind wheel 312, the second output shaft is connected with the auxiliary wind wheel 322, the main volute 311 and the auxiliary volute 321 are of an integrated structure, and when the range hood operates, the motor 33 rotates to drive the main fan system 31 and the auxiliary fan system 32 to start.
The front face of the main fan system 31 and a front plate of the box body 2 form a front cavity of the box body 2, the lower end of the front cavity of the box body 2 is communicated with the suction opening 12 of the fume collecting hood 1, the front cavity of the box body 2 is communicated with the air inlet of the main fan system 31, and the air outlet of the main fan system 31 is communicated with the air outlet on the box body 2. The main fan system 31 is used for the range hood to normally suck oil smoke, and the oil smoke enters the front cavity of the box body 2 through the exhaust inlet 12 of the smoke collecting cover 1, then enters the air inlet of the main fan system 31, and is discharged outwards through the air outlet of the main fan system 31.
A box 2 back cavity is formed between the back of the auxiliary fan system 32 and a plate of the box 2, the upper end of the box 2 back cavity is communicated with an air inlet formed in the top of the box 2, and the box 2 back cavity is communicated with the air inlet of the auxiliary fan. The auxiliary fan system 32 sucks clean air from the top of the range hood, the air enters the back cavity of the box body 2 from the air inlet 21 at the top of the box body 2, and the air passes through the air inlet of the auxiliary fan system 32 and is discharged from the air outlet of the auxiliary fan system 32.
The top of the smoke collecting cover 1 is provided with an opening, the opening is communicated with an air outlet of the auxiliary fan system 32, an air inlet of the ventilation pipeline 16 is communicated with the opening, and an air outlet of the ventilation pipeline 16 is communicated with an exhaust hole 131 on the side air duct 13. The ventilation duct 16 is formed by connecting a plurality of hard pipes or combining a hose and an adapter. After being exhausted from the air outlet of the secondary fan system 32, the air enters the ventilation duct 16 through the top opening of the smoke collecting hood 1, and is blown out through the exhaust holes 131 on the side air duct 13.
The side wind channel 13 is in 1 both sides of collection petticoat pipe, from top to bottom slope arrangement forward side wind channel 13 is last to be provided with at least one row of vertical layout and to give vent to anger exhaust hole 131 forward, exhaust hole 131 leaves side wind channel 13 marginal distance is less than 20 mm. In this embodiment, a row of exhaust holes 131 is disposed on the side air duct 13, and the distance between the exhaust holes 131 and the edge of the side air duct 13 is 10 mm.
The rotational flow surface 14 is an arc surface formed by extending the side air duct 13 to the front surface of the smoke collecting cover 1, and the cross section of the arc surface in the horizontal direction is linearly enlarged from bottom to top.
The left circular arc face with the right circular arc face orientation is kept away from 15 directions of transition plane are crooked, and the left circular arc face with the right circular arc face is the quarter circular arc at arbitrary horizontal cross-section's arc length, circular arc one end with transition plane 15 is tangent, the other end of circular arc with the direction of giving vent to anger of exhaust hole 131 is tangent.
The air current that side wind channel 13 exhaust hole 131 blew out towards the place ahead or blew out the air current towards the arc surface tangential direction, drives peripheral air current and flows together, thereby because left arc surface with the existence of right arc surface, the air current of being taken along can flow through these arc surfaces and form the whirl, and the suction of cooperation inlet scoop 12 to form unique spiral air current, can form the effect of holding together of spin-suction in the front of the oil smoke gas diffusion, reach the effect that the high efficiency held together the smoking.
The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (10)
1. The utility model provides a range hood, includes collection petticoat pipe (1), box (2) and fan subassembly (3), box (2) set up collection petticoat pipe (1) is last, fan subassembly (3) set up in box (2), its characterized in that: fan subassembly (3) are including main fan system (31), vice fan system (32) and motor (33), main fan system (31) with vice fan system (32) pass through motor (33) drive coaxial rotation collection petticoat pipe (1) upper portion is provided with inlet scoop (12), inlet scoop (12) with the air intake intercommunication of main fan system (31) the both sides of collection petticoat pipe (1) form side wind channel (13) the inboard of side wind channel (13) forms and is used for making the rotatory whirl face (14) of the air current that flows through it be provided with exhaust hole (131) on side wind channel (13) be equipped with air pipe (16) in collection petticoat pipe (1), the air outlet of vice fan system (32) passes through air pipe (16) with side wind channel (13) are linked together.
2. A range hood according to claim 1, wherein: the main fan system (31) comprises a main volute (311) and a main wind wheel (312) arranged in the main volute (311), the auxiliary fan system (32) comprises an auxiliary volute (321) and an auxiliary wind wheel (322) arranged in the auxiliary volute (321), the motor (33) is provided with a first output shaft and a second output shaft, the first output shaft is connected with the main wind wheel (312), the second output shaft is connected with the auxiliary wind wheel (322), and the main volute (311) and the auxiliary volute (321) are of an integral structure.
3. A range hood according to claim 2, wherein: the utility model discloses a smoke collecting hood, including main fan system (31) front with form box (2) front chamber between the front panel of box (2), box (2) front chamber lower extreme with inlet scoop (12) the intercommunication of collection petticoat pipe (1), just box (2) front chamber with the air intake intercommunication of main fan system (31), the air outlet of main fan system (31) with set up in air outlet seat on box (2) communicates mutually.
4. A range hood according to claim 2, wherein: a box body (2) back cavity is formed between the back of the auxiliary fan system (32) and a plate of the box body (2), the upper end of the box body (2) back cavity is communicated with an air inlet (21) formed in the top of the box body (2), and the box body (2) back cavity is communicated with an air inlet of the auxiliary fan.
5. A range hood according to any one of claims 1 to 4, wherein: side wind channel (13) collection petticoat pipe (1) both sides, from top to bottom slope arrangement forward be provided with at least one row of vertical layout on side wind channel (13) and give vent to anger exhaust hole (131) forward, exhaust hole (131) leave side wind channel (13) edge distance is less than 20 mm.
6. The range hood of claim 5, wherein: the rotational flow surface (14) is an arc surface formed by extending the side air duct (13) to the front surface of the smoke collecting hood (1), and the cross section of the arc surface in the horizontal direction is linearly enlarged from bottom to top.
7. A range hood according to claim 6, wherein: side wind channel (13) include left side wind channel (13) and right side wind channel (13), left side wind channel (13) with right side wind channel (13) are established respectively collection petticoat pipe (1) left and right sides, left side wind direction collection petticoat pipe (1) openly extends and forms the left circular arc face, right side wind direction collection petticoat pipe (1) openly extends and forms the right circular arc face, the left circular arc face with form transition plane (15) between the right circular arc face.
8. A range hood according to claim 7, wherein: the left circular arc face with the right circular arc face orientation is kept away from transition plane (15) direction is crooked, and the left circular arc face with the right circular arc face is the quarter circular arc at arbitrary horizontal cross-section's arc length, circular arc one end with transition plane (15) are tangent, the other end of circular arc with the direction of giving vent to anger of exhaust hole (131) is tangent.
9. A range hood according to claim 8, wherein: the collection petticoat pipe (1) top is equipped with the opening, the opening with the air outlet intercommunication of vice fan system (32), the air inlet of air pipe (16) with the opening intercommunication, the air outlet of air pipe (16) with first exhaust hole (131) with second exhaust hole (131) intercommunication.
10. A range hood according to claim 8, wherein: the ventilation pipeline (16) is formed by connecting a plurality of sections of hard pipes or combining a hose and an adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911408967.2A CN111089320A (en) | 2019-12-31 | 2019-12-31 | Fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911408967.2A CN111089320A (en) | 2019-12-31 | 2019-12-31 | Fume exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111089320A true CN111089320A (en) | 2020-05-01 |
Family
ID=70397980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911408967.2A Pending CN111089320A (en) | 2019-12-31 | 2019-12-31 | Fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111089320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377960A (en) * | 2020-10-20 | 2021-02-19 | 华帝股份有限公司 | Range hood and control method |
-
2019
- 2019-12-31 CN CN201911408967.2A patent/CN111089320A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377960A (en) * | 2020-10-20 | 2021-02-19 | 华帝股份有限公司 | Range hood and control method |
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