CN104949171B - A kind of range hood with lengthening blower hood - Google Patents
A kind of range hood with lengthening blower hood Download PDFInfo
- Publication number
- CN104949171B CN104949171B CN201410119163.1A CN201410119163A CN104949171B CN 104949171 B CN104949171 B CN 104949171B CN 201410119163 A CN201410119163 A CN 201410119163A CN 104949171 B CN104949171 B CN 104949171B
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- CN
- China
- Prior art keywords
- blower
- hood
- range hood
- fan system
- fume collecting
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- 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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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a kind of with the range hood for lengthening blower hood, including blower hood and the exhaust fume collecting hood for being mounted on blower hood lower part, blower fan system is installed in the blower hood, it is characterised in that: ratio of the blower hood and the exhaust fume collecting hood in vertical projection is 1:1~4:1.Compared with the prior art, the advantages of the present invention are as follows: the range hood after the installation is completed, not only can preferably arrange in pairs or groups, but also can drag down the negative pressure of blower fan system with upper cabinet, make negative pressuren zone closer to pot face, to obtain better smoke absorption effect；Furthermore, since blower hood uses extended type, thus inside blower hood there are more spaces to install blower fan system, blower fan system either uses the concatenated primary and secondary two-stage blower of two fans still to use single blower, the fume-exhausting ability of range hood can be promoted, and the noise that range hood uses the moment can also be reduced using the concatenated blower fan system of two fans simultaneously.
Description
Technical field
The present invention relates to a kind of range hoods, more particularly, to a kind of with the range hood for lengthening blower hood.
Background technique
The delivery flow of range hood in a state of use depends primarily on the wind pressure of cooking-fume exhauster blower system, and wind pressure is got over
Greatly, delivery flow is also bigger.When in use, oil smoke is needed through smoke exhaust pipe, check (non-return) valve and smoke evacuation the range hood of normal domestic use
Oil smoke is discharged the resistance devices such as channel, the presence of these resistance devices, so that oil smoke exists centainly at oil smoke outlet
Back pressure, the presence of back pressure can largely effect on the delivery flow of kitchen ventilator.Delivery flow of the wind pressure of blower fan system to range hood
It has a positive effect, the presence of back pressure then plays negative consequence to the delivery flow of range hood.
When in use, oil smoke is logical by the smoke exhaust pipe of itself, check (non-return) valve and smoke evacuation in addition to needing for many range hoods at present
Outside road, it is also necessary to which connecting firebreak device and common flue, oil smoke could be discharged, the public cigarette of some higher residential buildings of floor
Road is often longer, and the top of floor is arranged in the outlet of common flue, thus, for the resident of lowrise layer, inhale
The back pressure of kitchen ventilator will be very big, and the air draft flow of range hood when in use will be greatly reduced, so as to cause fume-exhausting effect
Fruit is deteriorated.In order to overcome the above problem, most of way is by improving the power of motor of blower come increasing exhaust stream at present
Amount, but after the power of motor raising of blower, the volume of blower becomes larger, so that the volume of blower hood becomes larger, especially makes blower
The lateral dimension of outer cover becomes larger, and then range hood is caused to seem not light and handy enough, moreover, come only by the power for improving blower
Air draft flow is promoted, the noise increase of blower is also clearly.In addition, existing this follow-on range hood collects cigarette due to it
Cover larger with a distance from hearth, thus its smoke absorption effect need to be improved.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to above-mentioned state of the art, providing a kind of can make exhaust fume collecting hood sink
And bring the range hood with lengthening blower hood of preferable smoke absorption effect.
The technical scheme of the invention to solve the technical problem is: this has the fume-exhausting for lengthening blower hood
Machine is equipped with blower fan system in the blower hood including blower hood and the exhaust fume collecting hood for being mounted on blower hood lower part,
It is characterized by: the ratio of the blower hood and the exhaust fume collecting hood in vertical projection is 1:1~4:1.
Preferably, in the mounted state, the bottom lower edge of the exhaust fume collecting hood is 250 with a distance from hearth to the range hood
~500mm.In this way, relative to traditional range hood, since the exhaust fume collecting hood of the range hood is closer to cooktop, thus fume-exhausting
Effect is more preferable.
Further preferably, in the mounted state, the exhaust fume collecting hood is integrally located at the lower section of cabinet to the range hood.
After adopting the above structure, since the exhaust fume collecting hood of the range hood is closer to cooktop, thus better fume-exhausting can not only be obtained
Effect, but also the space utilization rate of cabinet can be improved, so that range hood is preferably arranged in pairs or groups with upper cabinet.
In order to effectively overcome the back pressure of range hood, the blower fan system include the main blower being serially connected and time
Grade blower, the air outlet of the main blower and the air inlet configured in fluid communication of secondary fan.The cooperation work of primary and secondary two-stage blower
Make, after secondary fan overcomes the back pressure of oil suction press, so that it may farthest play the effect of main blower.
In order to make blower fan system maintain preferable flow field, and fan noise is minimized, the outlet air of the main blower
Mouth is connected with the air inlet of the secondary fan by wind-guiding connecting tube.In this way, the oil smoke flowed out from host fan outlet is logical
It crosses wind-guiding connecting tube and enters secondary fan air inlet, without fleeing in blower hood.
Primary and secondary two-stage blower can have various positions relationship, it is preferable that the main blower and secondary fan are vertically put down
Row setting or oblique parallel setting.
Further preferably, the main blower and secondary fan overlap in vertical projection, and the secondary
The air inlet lower edge of blower is located at the top of the overlapping region.In this way, under the premise of not influencing blower fan system ventilation efficiency,
Blower hood can be made too long, so that the cost of product can also be saved.
The height of the overlapping region can be adjusted according to the structure difference of primary and secondary two-stage blower, it is preferable that described
The height of overlapping region in vertical projection of main blower and secondary fan be 0~30mm.
Compared with the prior art, the advantages of the present invention are as follows: the range hoods after the installation is completed, not only can preferably with
Upper cabinet collocation, and the negative pressure of blower fan system can be dragged down, make negative pressuren zone closer to pot face, to obtain better fume-exhausting
Effect；Further, since blower hood uses extended type, thus there are more spaces to install blower system inside blower hood
System, blower fan system either use the concatenated primary and secondary two-stage blower of two fans still to use single blower, can promote range hood
Fume-exhausting ability, and using the concatenated blower fan system of two fans can also reduce simultaneously range hood use the moment noise.
Detailed description of the invention
Fig. 1 is the main view of the embodiment of the present invention；
Fig. 2 is the side view of range hood shown in Fig. 1；
Fig. 3 is that the embodiment of the present invention is installed to the main view behind kitchen；
Fig. 4 is the side view of mounting structure shown in Fig. 3.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As depicted in figs. 1 and 2, the range hood in the present embodiment includes blower hood 1 and is mounted on 1 lower part of blower hood
Exhaust fume collecting hood 2, the bottom of blower hood 1 and the bottom of exhaust fume collecting hood 2 are substantially flush.Blower fan system is installed in blower hood 1,
There is oblique air intake surface 21 on exhaust fume collecting hood 2, be provided with air inlet of kitchen ventilator 22 on oblique air intake surface 21.Assuming that blower hood
1 value in vertical projection is h1, and value of the exhaust fume collecting hood 2 in vertical projection is h2, the ratio h1:h2 of the two can for 1:1~
4:1.Certainly, in order to enable 2 integral sinking of exhaust fume collecting hood below upper cabinet, the ratio is normally close in 3:1.
Blower fan system includes the main blower 3 and secondary fan 4 being serially connected, main blower 3 and secondary fan 4 be from
Heart blower, and the air inlet configured in fluid communication of the air outlet of main blower 3 and secondary fan 4.In the present embodiment, the main wind
The air outlet of machine 3 is connected with the air inlet of the secondary fan 4 by wind-guiding connecting tube 5, to realize main blower 3 and secondary wind
Fluid communication between machine 4.
In the present embodiment, main blower 3 and the setting of 4 oblique parallel of secondary fan, also, main blower 3 and secondary fan 4
It overlaps in vertical projection, the height h of the overlapping region is 0~30mm, and this highly can be according to primary and secondary two-stage wind
The different structure of machine is adjusted, preferably 10~20mm.In addition, in order to which the oil smoke flowed out from 3 air outlet of main blower can be suitable
Benefit enters 4 air inlet of secondary fan, and the air inlet lower edge of secondary fan 4 is located at the top of above-mentioned overlapping region.
As shown in Figure 3 and Figure 4, the range hood in the present embodiment after the installation is completed, the air outlet and oil smoke of secondary fan 4
The discharge pipe 8 of machine is connected, blower hood 1 close to wall, the bottom lower edge of exhaust fume collecting hood 2 from 6 distance h3 of hearth be 250~
500mm, also, exhaust fume collecting hood 2 is integrally located at the lower section of cabinet 7.In this way, the range hood can preferably be taken with upper cabinet 7
Match, and can be dragged down the negative pressuren zone of blower fan system after the sinking of exhaust fume collecting hood 2, make negative pressuren zone closer to pot face, to obtain more
Good smoke absorption effect.
The foregoing is merely the preferred embodiment of the present invention, it is noted that for those of ordinary skills,
Under the premise of not departing from the principle of the present invention, the present invention can be carried out master in a variety of remodeling or improvement, such as blower hood,
Secondary two-stage blower can also be arranged in parallel or other positions relationship in addition to outer using oblique parallel setting using vertical, this
It is considered as within protection scope of the present invention.
Claims (3)
1. it is a kind of with the range hood for lengthening blower hood, including blower hood (1) and it is mounted on blower hood (1) lower part
Exhaust fume collecting hood (2) is equipped with blower fan system, the blower hood (1) and the exhaust fume collecting hood in the blower hood (1)
(2) ratio in vertical projection is 1:1~4:1, and in the mounted state, the exhaust fume collecting hood (2) is whole for the range hood
Positioned at the lower section of upper cabinet (7), the bottom lower edge of the exhaust fume collecting hood (2) is 250~500mm, feature with a distance from hearth (6)
Be: the blower fan system includes the main blower (3) and secondary fan (4) being serially connected, the main blower (3)
The air inlet configured in fluid communication of air outlet and secondary fan (4), the air outlet and the secondary fan of the main blower (3)
(4) air inlet is connected by wind-guiding connecting tube (5), and the main blower (3) and secondary fan (4) has in vertical projection
It partly overlaps, and the air inlet lower edge of the secondary fan (4) is located at the top of the overlapping region.
2. according to claim 1 have the range hood for lengthening blower hood, it is characterised in that: the main blower
(3) and secondary fan (4) is vertically arranged in parallel or oblique parallel setting.
3. according to claim 1 have the range hood for lengthening blower hood, it is characterised in that: the main blower
(3) and the height of overlapping region of the secondary fan (4) in vertical projection is 0~30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410119163.1A CN104949171B (en) | 2014-03-27 | 2014-03-27 | A kind of range hood with lengthening blower hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410119163.1A CN104949171B (en) | 2014-03-27 | 2014-03-27 | A kind of range hood with lengthening blower hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949171A CN104949171A (en) | 2015-09-30 |
| CN104949171B true CN104949171B (en) | 2019-01-11 |
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ID=54164049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410119163.1A Active CN104949171B (en) | 2014-03-27 | 2014-03-27 | A kind of range hood with lengthening blower hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104949171B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121120B (en) * | 2018-10-31 | 2021-12-24 | 宁波方太厨具有限公司 | Double-direct-current fan rotating speed control method and system and range hood |
| CN110186087A (en) * | 2019-05-19 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of series connection two fans type range hood and its flow control methods |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH631802A5 (en) * | 1978-01-31 | 1982-08-31 | Electrolux Ag | Baking, roasting and grilling oven |
| US4856419A (en) * | 1987-05-15 | 1989-08-15 | Takeo Imai | Process for collecting a contaminated substance and apparatus thereof |
| EP1840057A2 (en) * | 2006-03-28 | 2007-10-03 | Canon Kabushiki Kaisha | Sheet feeding device and image forming apparatus |
| CN201159494Y (en) * | 2008-01-12 | 2008-12-03 | 鞠俊 | Axial flow type series connection multifunctional fume exhauster |
| CN103363563A (en) * | 2013-06-21 | 2013-10-23 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN203785039U (en) * | 2014-03-27 | 2014-08-20 | 宁波方太厨具有限公司 | Range hood with lengthened outer fan cover |
-
2014
- 2014-03-27 CN CN201410119163.1A patent/CN104949171B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH631802A5 (en) * | 1978-01-31 | 1982-08-31 | Electrolux Ag | Baking, roasting and grilling oven |
| US4856419A (en) * | 1987-05-15 | 1989-08-15 | Takeo Imai | Process for collecting a contaminated substance and apparatus thereof |
| EP1840057A2 (en) * | 2006-03-28 | 2007-10-03 | Canon Kabushiki Kaisha | Sheet feeding device and image forming apparatus |
| CN201159494Y (en) * | 2008-01-12 | 2008-12-03 | 鞠俊 | Axial flow type series connection multifunctional fume exhauster |
| CN103363563A (en) * | 2013-06-21 | 2013-10-23 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN203785039U (en) * | 2014-03-27 | 2014-08-20 | 宁波方太厨具有限公司 | Range hood with lengthened outer fan cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104949171A (en) | 2015-09-30 |
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