CN101303141A - Cooking fume exhauster - Google Patents
Cooking fume exhauster Download PDFInfo
- Publication number
- CN101303141A CN101303141A CNA200710021875XA CN200710021875A CN101303141A CN 101303141 A CN101303141 A CN 101303141A CN A200710021875X A CNA200710021875X A CN A200710021875XA CN 200710021875 A CN200710021875 A CN 200710021875A CN 101303141 A CN101303141 A CN 101303141A
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- range hood
- blower fan
- filter
- oil
- fat
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Abstract
This invention discloses a range hood (2) which absorbs the gas (6) which is from cooking appliances (4) and contains moisture, oil and grease by virtue of the operation of a fan device (18), filters out the oil and grease contained in the gas in filter systems (24, 26, 28) and releases the filtered gas (6) by a discharge pipe (34). In order to enhance the filtration characteristic, the range hood of the invention is provided at least one heating element (12); the heating elements are mounted on the range hood (2) and used for heating the interior of the range hood and/or any elements mounted in the range hood, thus keeping the grease adsorbed at the internal side of the range hood or on any elements mounted in the range hood in hot state and/or heating the grease to hot state so as to facilitate grease collection.
Description
Technical field
The present invention relates to a kind of range hood, running by a blower fan apparatus absorbs the gas that contains moisture, oil and fat from cooking appliance, in a filtration system, filtering out oil and the fat that wherein contains, and discharged the gas of filtration by a discharge pipe.
Technical background
This type of range hood, mainly be made of metal, comprise a) metal system Blower Housing, be loaded with an assembly that is called " spiral case " in it, fan or blower fan are installed in the spiral case, a motor is used for driving this blower fan, and b) assembly that is called " exhaust fume collecting hood " is installed in the bottom of Blower Housing, and the cross section of exhaust fume collecting hood can be the case shape, form also can roughly be trapezoidal as an alternative.A filtration system that comprises the grease gatherer is connected this exhaust fume collecting hood bottom side.This filtration system is made up of an element that is called " oil strain frame " and an element that is called " filtering layer " that includes one second filter that includes one first metallic filter.The gas that contains oil, fat and water that produces in the cooking process passes from first metallic filter and second filter.Filter roughly is Pyramid (cross section is trapezoidal).Selectable second filter can be the net that is slightly less than first filter on the width.The middle part of first filter is provided with a medium pore, and the bottom in this hole is connected with a grease gatherer, and this gatherer need be removed cleaning frequently.
In the cooking process, the gas that contains oil, fat and water rises and enters the top of range hood.Gas passes first and second filters, enters the Blower Housing that includes a blower fan afterwards, comes out to enter discharge pipe from lampblack absorber at last.Have only first filter and additionally, as current, second filter filter oil and the fat enters the grease gatherer to guide them.Yet this filtration is incomplete, so a small amount of oil and fat still may be crossed this filtration system and be stuck in the inwall of Blower Housing and be contained on the interior element of this housing, perhaps even via discharge pipe discharge.
Summary of the invention
Therefore, the present invention aims to provide the range hood that a kind of filtering feature has improved.
Another object of the present invention is to realize that by simple device these improve filtering feature.
And, a further object of the present invention provides a kind of range hood, before gas is discharged via discharge pipe, its increased to absorbed in the cooking process by device for cooking, as gas-cooker or stove, the filtration yield and the removal amount of oil and fat in the gas of generation.
And, in cooking process and/or afterwards, also be one object of the present invention easily from get on oil removing and fat of the madial wall of range hood, the madial wall here can comprise the inwall of Blower Housing, and/or be contained in the outer surface of element wherein, such as first metallic filter, the spiral case of second metallic filter and/or splendid attire blower fan.
In order to reach the goal of the invention of mentioning in primary importance, also according to first citation form, a kind of range hood is provided, running by a blower fan apparatus absorbs the moisture that contains from cooking appliance, the gas of oil and fat, in a filtration system, to filter out oil and the fat that wherein contains, and discharged the gas of filtration by discharge pipe, it is characterized in that, at least one electrical heating elements is arranged on this range hood, be used for heating the inside of this range hood and/or be installed on any element of described range hood inside, make the oil that is attached on the described range hood whereby and/or fat keeps warm or it is warmed.
Heating process can be based on infrared heating.But best, heating is preferably based on resistance heated.
According to the embodiment of first-selection, a range hood is provided, comprise a filtration system, this filtration system comprises a filter frame that has one first metallic filter, and this filter frame comprises second metallic filter of a stratiform alternatively.This range hood can also comprise that a splendid attire produces the spiral case of the blower fan of running air-flow.This range hood feature is, one or more heating element heaters be arranged at range hood or wherein on the element so that its oil that continues to keep adhering on described first filter and/or described second filter and/or the described spiral case is in warm state.
Certainly, this heating element heater or a plurality of heating element heater also can be used to heat oil and the fat that is attached on these elements.In order to reach this target easily, this heating element heater or these heating element heaters can be arranged on
On-the first metallic filter, and/or
On-the second metallic filter, and/or
On-the spiral case.
Replacedly or additionally, at least one heating element heater is arranged on the madial wall of range hood.
Electrical heating elements () can pass through at least one switch manual operation by the user of range hood.
According to an important embodiment of the present invention, single or a plurality of heating element heaters are connected on the power supply via a switch with the main switch interlock of switch or control fan speed.
Keep hot state so that it is easy to towards the grease collector flows in order to ensure oil and fat always, be switched to the position of " pass " at blower fan after, heating element heater remains on preheating setting time section in position of " opening ".
In order to reach this purpose, can on the electric wire of the main switch and the switch room of control heating element heater, a time delay device be set.This time delay device provides above-mentioned preheating setting time section.
Also in order to reach first target of putting forward, according to a second fundamental form, a kind of lampblack absorber is provided, its running by a blower fan apparatus absorbs the gas that contains moisture, oil and fat from cooking appliance, in a filtration system, to filter out oil and the fat that wherein contains, and passing through the gas that a discharge pipe discharged filtration, this range hood can be according to the embodiment design that is provided with a heating element heater at least, as carrying before.This second fundamental form is characterized in that, in order to cause the oil that is attached to range hood inwall and each element surface and fat to dirty, on the time point of blower fan after the position that is converted to " pass ", a designated duration is moved in the position that is converted to " opening " again.Range hood shell has been shaken in restarting of blower fan, and stop grease is thereon flowed down.
This designated duration can be about 1 second.
A range hood that special benefits is arranged is provided, at a time point, described blower fan apparatus is converted to one section preheating setting time in position of " opening ", and this time point is closed before being positioned at behind the time point of described blower fan apparatus less than 10 seconds such duration sections.
Described duration Duan Weiyi is about second.
For this purpose, be provided with an other hand switch with for cleaning purpose the conversion described blower fan apparatus to the position of " opening " described preset time of section.
In order to realize automatic operation, described duration section can be arranged to fix.
Below in conjunction with accompanying drawing most preferred embodiment of the present invention is described.
Brief Description Of Drawings
Among the figure:
Fig. 1 is the range hood side cross-sectional view, on it, is provided with several heating element heaters,
Figure 2 shows that the fan operation timetable that is presented among Fig. 1 corresponding to first fundamental form of the present invention,
Figure 3 shows that the first possibility Operational Timelines of the heating element heater that is presented among Fig. 1,
Figure 4 shows that the second possibility Operational Timelines of the heating element heater that is presented among Fig. 1,
Figure 5 shows that the 3rd possibility Operational Timelines of the heating element heater that is presented among Fig. 1,
Figure 6 shows that the Operational Timelines that are presented among Fig. 1 corresponding to the blower fan of first embodiment of second basic mode of the present invention, and
Figure 7 shows that the Operational Timelines that are presented among Fig. 1 corresponding to the blower fan of second embodiment of second basic mode of the present invention.
Among the figure:
2. range hood
4. cooking apparatus
6. gas
8. be used to control the electronic-controlled installation of motor
10. motor
12. heating element heater
14. Blower Housing
16. spiral case
18. blower fan
20. exhaust fume collecting hood
22. filtration system
24. grease gatherer
26. first filter
28. second filter
30. medium pore
32. a small amount of grease
34. discharge pipe
36. base
38. oil droplet
A. main switch
B. heater switch
C. clean switch
D. time delay device
T1 preheating setting time section
T2 time space
The T3 duration
The T4 designated duration
Specific embodiment
Referring to Fig. 1, institute provides and is arranged at traditional cookery device 4, as panel the gas-cooker of two pot positions, the range hood 2 of top is arranged.In the process of cooking food, 6 of gases that contain water and/or oil and/or fat can produce.When position that range hood 2 is converted to out by the switch A that is provided with corresponding to an electronic installation 8, that is, range hood 2 is in running status following time, and gas 6 is inhaled in the lampblack absorber 2.
As be shown schematically among Fig. 1, except that power main switch A, also be provided with an electrical heating switch B (not shown) and an electricity cleaning switch C (not shown) and an other deferred mount D, all these switches all are associated with the main control unit 8 as power switch.The setting of switch A and C is in order to operate motor 10, and the setting of switch B is in order to power in a kind of mode of control for one or more electrical heating elements 12.Participate in t0 to the t1 section among Fig. 2, switch A is used at cooking process switch range hood 2.And switch B is used for powering to heating element heater 12 corresponding to the pattern of wanting.Mode of operation can be corresponding to the operation shown in Fig. 3 to Fig. 5.Referring to Fig. 5,, a time delay device D can be set in order to produce a time delay T2.Therefore, switch B can be an automatic run switch that is wholely set with control device 8.Best, with time delay device D together, it can be included in the control device 8.
Cleaning switch C can be corresponding to Fig. 6 and 7 operations.For this purpose, it can be a hand switch.Yet preferably, it can be automatically by control device 8 operations.Therefore, control device 8 can comprise the device that is used for being provided with duration section T3 and/or designated duration T4.
If can see from Fig. 1 that range hood 2 comprises a metal fan casing 14, wherein, comprise a splendid attire fan or blower fan 18 and be used to drive the assembly that is called " spiral case " 16 of the motor 10 of blower fan 18.What range hood 2 comprised also that a metal system is connected Blower Housing 14 lower ends is called " exhaust fume collecting hood " 20.Exhaust fume collecting hood 20 can be trapezoidal on cross section.Replacedly, it also can be the shape of chest.A filtration system 22 that comprises a grease gatherer 24 is connected the downside of exhaust fume collecting hood.One of assembly of filtration system 22 is to include one first metallic filter 26 to be called " filter frame ", and the gas 6 that produces in the cooking process at first passes this first metallic filter 26.26 1 small distances of distance first metallic filter, another assembly of filtration system 22 is an element that is called " filtering layer " that includes one second metallic filter 28.Filter 26 and 28 all is Pyramid (cross sectional shape is trapezoidal).Second filter 28 can optionally have the fine-structure mesh of a width less than first filter 26.The middle part of first filter 26 is provided with a medium pore 30, under be provided with and need the grease gatherer that cleans frequently.
When water or grease cooking food, gas 6 rises and enters the top of range hood 2.Gas 6 passes first and second filters 26 and 28, then enters in the spiral case 14 that is loaded with blower fan 18, enters the discharge pipe 34 that is connected on the housing 14 by base 36 at last and drains into outside the range hood 2.
As previously mentioned, have only first filter 26, as current, additionally and second filter 28 absorb greases and enter grease gatherer 24 to guide it.Yet this filtration is incomplete, so a small amount of oil and fat 32 can be crossed this filtration system and be stuck in the inwall of Blower Housing 14 and be contained in the interior element of this housing, and as spiral case, on.
In order to provide filtering feature improved range hood 2, be provided with a plurality of heating element heaters 12.In this embodiment, heating element heater is set on the inner wall spiral case 16 and second filter 28 to heat these positions.Other elements also can be heated.Heating process can occur in the cooking process or afterwards.
Heating is based on resistance heated.Manually or automatically close switch B, the heating beginning.Heating will increase the flowing time of oil or make grease begin to flow, so oil droplet 38 and/or grease can tumble and finally be collected in the gatherer 24.
As shown in Figure 4, keep hot state always and heat in order to ensure oil and fat, make it be easy to flow down and enter the grease gatherer, the position heating element heater 12 that is converted to " pass " during in time point t1 at blower fan 18 is introduced into or remains on the position one preheating setting time section T1 of their " opening "
Referring to Fig. 6 and Fig. 7, according to second kind of citation form of the present invention, after blower fan 18 was converted to the position of " pass " at time point t1, a designated duration T4 was moved in the position that is converted to " opening " again, is from t4 to t5 among the figure.
Participate in Fig. 7, range hood 2 with further advantage, at time point t4, described blower fan apparatus 18 is converted to the position one designated duration T4 of " opening ", and time point t4 closes before being positioned at behind the time point t1 of described blower fan apparatus 18 less than 10 seconds such sustained periods of time T3.
Designated duration T4 can be about 1 second.
For this purpose, the manual operation switch C of another one by control device 8 power supply can be set, with for cleaning purpose blower fan 18 is converted to the position one designated duration T4 of " opening ".Yet,, can be made as designated duration T4 and duration T 3 fixing in order to turn round automatically.
With regard to second kind of form of the present invention, should be noted that: by the exchange of first kind of form and second kind of form, compare, may collect more grease with the situation that does not adopt this scheme.
With regard to second kind of form of the present invention, what should be summed up is:
After the time point t1 that closes before plays a definite time period T3, motor 10 will be converted (manually or automatically) to the state of opening T4 for a moment.This action causes 10 1 slight shakes of motor and vibration and therefore also causes the same action of Blower Housing 14.In this process, more grease can be collected.Experiment has proved that clearly this is because the shake of Blower Housing 14.Grease can run underneath to second filtering layer or filter frame from oil guide groove with dripping greatly.
This has following appreciable advantage:
Because the vibration of motor 10 closing blower fan 18 after, stick on the Blower Housing more, on the range hood wall and the grease on filtering layer or the filter frame can big flow down.So, to compare with starter 10 once more with no heating element heater 12, more grease can flow out Blower Housing 14 and enter into grease gatherer 24.These actions will guarantee that Blower Housing can not become greasy and dirty very soon.
Claims (16)
1. range hood, running by a blower fan apparatus absorbs the gas that contains moisture, oil and fat from cooking appliance, in a filtration system, filtering out oil and the fat that wherein contains, and discharged the gas of filtration, it is characterized in that by a discharge pipe
At least one electrical heating elements is arranged on this range hood, is used for heating the inside of this range hood and/or is installed on any element of described range hood inside, makes the oil that is attached on the described range hood whereby and/or fat keeps warm or it is warmed.
2. according to the range hood described in the claim 1, it is characterized in that described electrical heating elements is based on resistance heated.
3. according to the range hood described in the claim 1, it is characterized in that described electrical heating elements is based on infrared heating.
4. according to any described range hood in the claim 1 to 3, it comprises a filtration system that has a filter frame, described filter frame has second metallic filter of one first metallic filter and/or a stratiform, and/or, described range hood comprises that the described described gas that contains oil and fat that is used for turning round of splendid attire enters the spiral case of the blower fan apparatus of described discharge pipe, it is characterized in that the installation of described heating element heater makes oil and the fat on described first filter and/or described second filter and/or the described spiral case keep warm.
5. range hood according to claim 4 is characterized in that described heating element heater is arranged on
On-described first metallic filter, and/or
On-described second metallic filter, and/or
On-described the spiral case.
6. according to range hood described in any in the claim 1 to 5, it is characterized in that at least one described heating element heater is arranged on the madial wall of this range hood.
7. according to range hood described in any in the claim 1 to 6, it is characterized in that described electrical heating elements can manually be connected on the voltage source at the switch B of " opening " and off-position switching by the user via one.
8. according to range hood described in any in the claim 1 to 7, comprise that described blower fan apparatus enters discharge pipe with the described gas of scrolling, it is characterized in that, described electrical heating elements via one be used for the switch B of main switch A interlock of the described blower fan apparatus of switch and be connected on the voltage source.
9. range hood according to claim 8 is characterized in that, after described blower fan was switched to the position of " pass ", described heating element heater remained on the position one preheating setting time section T1 of " opening ".
10. according to claim 9 kind of described range hood, it is characterized in that a time delay device D is arranged on the live wire that is connected between described main switch A and described switch B, described deferred mount D provides described preheating setting time section T1.
11. according to range hood described in any in the claim 1 to 10, running by a blower fan apparatus absorbs the gas that contains moisture, oil and fat from cooking appliance, in a filtration system, to filter out oil and the fat that wherein contains, and discharged the gas of filtration by discharge pipe
It is characterized in that
Blower fan is after time point t1 is converted to the position of " pass ", and a designated duration T4 turns round in its position that is converted to " opening " again.
12. the range hood according to described in the claim 11 is characterized in that, described designated duration T4 is about one second.
13. according to any described range hood in claim 11 or 12, it is characterized in that, at time point t4, described blower fan apparatus is converted to the position of " opening " and moves described designated duration T4, and time point t4 closes before being positioned at behind the time point t1 of described blower fan apparatus less than 10 seconds such duration section T3.
14., it is characterized in that described duration section T3 is about one second according to range hood described in the claim 13.
15. according to any described range hood in the claim 11 to 14, it is characterized in that, be provided with an other hand switch C with for cleaning purpose the conversion described blower fan apparatus to the position of " opening " move described designated duration T4.
16., it is characterized in that described duration section is fixed according to any described range hood in the claim 13 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710021875XA CN101303141B (en) | 2007-05-09 | 2007-05-09 | Cooking fume exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710021875XA CN101303141B (en) | 2007-05-09 | 2007-05-09 | Cooking fume exhauster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101303141A true CN101303141A (en) | 2008-11-12 |
| CN101303141B CN101303141B (en) | 2011-04-27 |
Family
ID=40113161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710021875XA Active CN101303141B (en) | 2007-05-09 | 2007-05-09 | Cooking fume exhauster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101303141B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749775B (en) * | 2008-12-02 | 2011-12-14 | 博西华电器（江苏）有限公司 | Electric heating device used for range hood and range hood with the device |
| CN102287858A (en) * | 2011-06-15 | 2011-12-21 | 宁波方太厨具有限公司 | Self-cleaning device of range hood |
| CN103884036A (en) * | 2014-03-28 | 2014-06-25 | 张英华 | Side suction type range hood with water curtain and ionization oil-smoke removing functions |
| CN104879811A (en) * | 2010-07-30 | 2015-09-02 | 博西华电器（江苏）有限公司 | Range hood |
| CN115435360A (en) * | 2022-08-18 | 2022-12-06 | 昆山晔山金属制品有限公司 | Barbecue oven auxiliary smoke removal device and smoke removal method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163869A (en) * | 1991-12-05 | 1992-11-17 | George C. Yeh | Method and apparatus for ventilating gases containing condensable vapors |
| CN2195709Y (en) * | 1994-03-11 | 1995-04-26 | 江照政 | Dissipative muffler and oil filter of exhauster for removing cooking fumes |
| CN2209288Y (en) * | 1994-11-30 | 1995-10-04 | 江照政 | Heating and oil removing device for bellows of cooking fume exhauster |
| CN2331880Y (en) * | 1998-04-14 | 1999-08-04 | 陈垦 | Cooker hood without adhering oil pullotion |
| CN2333932Y (en) * | 1998-06-21 | 1999-08-18 | 胡惠明 | Cooking fume filter |
| CN2662118Y (en) * | 2003-10-24 | 2004-12-08 | 郑洪彬 | Hot net type smoke exhauster |
| CN2745635Y (en) * | 2004-12-03 | 2005-12-14 | 北京汉邦鼎业环保设备有限公司 | Oil fume separator |
-
2007
- 2007-05-09 CN CN200710021875XA patent/CN101303141B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749775B (en) * | 2008-12-02 | 2011-12-14 | 博西华电器（江苏）有限公司 | Electric heating device used for range hood and range hood with the device |
| CN104879811A (en) * | 2010-07-30 | 2015-09-02 | 博西华电器（江苏）有限公司 | Range hood |
| CN102287858A (en) * | 2011-06-15 | 2011-12-21 | 宁波方太厨具有限公司 | Self-cleaning device of range hood |
| CN102287858B (en) * | 2011-06-15 | 2013-11-06 | 宁波方太厨具有限公司 | Self-cleaning device of range hood |
| CN103884036A (en) * | 2014-03-28 | 2014-06-25 | 张英华 | Side suction type range hood with water curtain and ionization oil-smoke removing functions |
| CN103884036B (en) * | 2014-03-28 | 2016-04-20 | 张英华 | There is the near-suction type oil smoke suction machine of water curtain and ionization oil fume removing function |
| CN115435360A (en) * | 2022-08-18 | 2022-12-06 | 昆山晔山金属制品有限公司 | Barbecue oven auxiliary smoke removal device and smoke removal method thereof |
| CN115435360B (en) * | 2022-08-18 | 2023-09-01 | 昆山晔山金属制品有限公司 | Auxiliary smoke removing device and smoke removing method for barbecue oven |
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| Publication number | Publication date |
|---|---|
| CN101303141B (en) | 2011-04-27 |
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