CN113217967A - Fume exhaust fan - Google Patents
Fume exhaust fan Download PDFInfo
- Publication number
- CN113217967A CN113217967A CN202110599559.0A CN202110599559A CN113217967A CN 113217967 A CN113217967 A CN 113217967A CN 202110599559 A CN202110599559 A CN 202110599559A CN 113217967 A CN113217967 A CN 113217967A
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- China
- Prior art keywords
- filter
- range hood
- filter screen
- baffle
- box body
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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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- 239000003517 fume Substances 0.000 title claims description 6
- 238000009423 ventilation Methods 0.000 claims abstract description 24
- 238000005192 partition Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000779 smoke Substances 0.000 description 22
- 238000007790 scraping Methods 0.000 description 16
- 238000010411 cooking Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- F24C15/2035—Arrangement or mounting of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
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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
- F24C15/2078—Removing cooking fumes movable
- F24C15/2092—Removing cooking fumes movable extendable or pivotable
Landscapes
- 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 range hood, which comprises a box body structure and a fan frame for arranging a fan system, wherein the box body structure comprises a lower box body, the lower box body is provided with a first air inlet and a second air inlet which are arranged at intervals left and right, a first cavity and a second cavity which are independent and used as air inlet cavities are formed in the lower box body, the first cavity corresponds to the first air inlet, and the second cavity corresponds to the second air inlet; the range hood also comprises a first filter and a second filter, wherein the first filter corresponds to the first chamber, and the second filter corresponds to the second chamber; the first filter comprises a first filter screen, the second filter comprises a second filter screen, the part of the first filter screen, which is positioned on the left side of the position where the first filter screen is in contact with the bottom of the lower box body, is a ventilation area, and the part of the second filter screen, which is positioned on the right side of the position where the second filter screen is in contact with the bottom of the lower box body, is a ventilation area; the first filter and the second filter are both rotatable about a rotation axis extending in the front-rear direction, thereby adjusting the area of the ventilation area of the first filter and the second filter.
Description
Technical Field
The invention relates to an oil fume purification device, in particular to a range hood.
Background
Chinese cooking can generate a large amount of oil smoke, and in order to keep the kitchen environment clean and the human health, the range hood becomes one of indispensable kitchen household appliances in modern families. The range hood generally comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood has more and more extensive application due to the advantages of being neat and light, small in occupied space, good in matching with a hanging cabinet, low in noise and the like.
The top-suction type range hood generally comprises a smoke collecting hood and a fan frame positioned on the smoke collecting hood, wherein a volute, an impeller and a motor for driving the impeller are installed in the fan frame, and an air inlet is arranged in the center of the smoke collecting hood and is directly connected with a high negative pressure area where the fan is located. The range hood has the problems of high wind speed and negative pressure at the air inlet of the smoke collecting hood and large negative pressure attenuation at the position far away from the air inlet. And this type of range hood can set up the filter screen in air intake department, and the oil smoke can filter the large granule (generally be greater than PM10) greasy dirt when passing through the filter screen, and inside reentrant range hood, then further filter remaining tiny particle greasy dirt through fan centrifugal force. If not set up the filter screen, then can lead to a large amount of large granule oil smoke to get into fan system, if the impeller of fan adheres to a large amount of oil smoke particles, then can destroy impeller dynamic balance, make range hood shake aggravation, the noise rises. The existing filter screens generally do not have self-cleaning capability, and can block an oil screen after long-term use, so that the air inlet resistance is increased, the smoking effect is reduced, and the filter screens usually need to be detached regularly for cleaning.
In addition, the burner of a common household cooker is usually divided into two parts, namely a left burner and a right burner, so that a user sometimes only uses one burner and sometimes uses two burners simultaneously in the cooking process, but the household cooker often only uses one burner to fry a large amount of oil smoke. If the user only uses the left furnace end to cook or uses the left side to cook and steam rice in the actual cooking process, then the left oil smoke concentration and the oil smoke particle potential of the range hood are necessarily much larger than those of the right side, so the situation that oil smoke escapes often occurs in the unilateral stir-fry cooking of the type is often solved by improving the rotating speed of the impeller, the total air volume of the range hood is increased, the increase of the total air volume can bring the simultaneous promotion of the left side air volume and the right side air volume, and the oil smoke absorption effect is further improved. However, the increase of the rotating speed of the impeller greatly increases the noise, the physical health of people is affected, the actual cooking is fried quickly and occurs on one side, and the air quantity is simultaneously increased on two sides to cause the energy consumption waste on the other side.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a range hood, which can adjust the distribution of flow on two sides and improve the range hood effect, aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood, includes the box structure and is used for setting up the fan frame of fan system, the box structure sets up the below at the fan frame, the box structure includes box down, first air intake and the second air intake of controlling the interval arrangement, its characterized in that have been seted up on the box down:
a first cavity and a second cavity which are independent and used as air inlet cavities are formed in the lower box body, the first cavity corresponds to the first air inlet, and the second cavity corresponds to the second air inlet;
the range hood further comprises a first filter and a second filter, the first filter corresponds to the first chamber, and the second filter corresponds to the second chamber; the first filter comprises a first filter screen, the second filter comprises a second filter screen, the first filter screen is provided with a position which can be directly or indirectly abutted against the bottom of the lower box body, the second filter screen is provided with a position which can be directly or indirectly abutted against the bottom of the lower box body, the left side of the position where the first filter screen is abutted against the bottom of the lower box body is a ventilation area corresponding to the first chamber, and the right side of the position where the second filter screen is abutted against the bottom of the lower box body is a ventilation area corresponding to the second chamber; the oil smoke entering from the first chamber and the second chamber can only pass through the ventilation area of the corresponding filter screen;
the first filter and the second filter are both rotatable about a rotation axis extending in the front-rear direction, thereby adjusting the area of the ventilation area of the first filter screen and the second filter screen.
Preferably, for making the filter screen keep conflicting with lower box at the pivoted in-process, first filter screen and second filter screen all are the bellied arc downwards.
Preferably, the first filter and the second filter are each in the form of a sector, the tip of each sector faces upwards, the first filter mesh and the second filter mesh are the bottom of the respective filter, the first filter is open to one side of the second filter to form a first outlet, and the second filter is open to one side of the first filter to form a second outlet.
For make the oil smoke pass through the filter screen of corresponding side after, realize the air loss reduction through the water conservancy diversion when transversely changing into vertically upwards from the water conservancy diversion, range hood still includes water conservancy diversion spare, water conservancy diversion spare includes first guide plate and second guide plate, first guide plate is located the left side of second guide plate, first guide plate is bellied arc right, the second guide plate is bellied arc left, the top interconnect of first guide plate and second guide plate to the junction is located between two filters, the top of first guide plate and second guide plate is not less than the least significant end of the export of each filter.
Preferably, for the convenience of setting up the filter, carry out the closure in certain space simultaneously, avoid the oil smoke to reveal from unexpected route, be provided with transversely extending's first baffle and second baffle in the box structure, first baffle is extended to the centre by the left side of box structure, the second baffle is extended to the centre by the right side of box structure, form the air outlet in the middle of first baffle and the second baffle, first filter rotates with the right-hand member of first baffle to be connected, the second filter rotates with the left end of second baffle to be connected.
In order to enable the two filters to synchronously rotate and realize flow distribution under the condition of not increasing the total air volume, a connecting rod is connected between the first filter and the second filter, and two ends of the connecting rod are respectively in rotating connection with the first filter and the second filter.
Preferably, in order to automatically drive the filter to rotate, the range hood further comprises a driving mechanism, and the driving mechanism drives the first filter or the second filter to rotate.
For realizing the filter screen automatically cleaning, increase of service life, thereby the below of first filter is provided with the first frizing board that can contradict with first filter screen and strike off greasy dirt on the first filter screen, thereby the below of second filter is provided with the second frizing board that can contradict with the second filter screen and strike off greasy dirt on the second filter screen, the first filter screen of first filter is located the left part of first frizing board and is the ventilation zone, and the part that the second filter screen of second filter is located second frizing board right side is the ventilation zone.
In order to collect oil stains conveniently, the bottom of the lower box body is provided with an oil leakage hole, an oil cup is arranged below the lower box body, and the oil cup covers the oil leakage hole.
Preferably, the lower box body is internally provided with a first baffle, a second baffle and a third baffle, the first baffle and the second baffle are arranged at a left-right interval and are spaced from the rear side of the lower box body at a certain interval, the third baffle is connected between the rear end parts of the first baffle and the second baffle, the first chamber is positioned on the left side of the first baffle, the second chamber is positioned on the right side of the second baffle, the first filter and the second filter are positioned on the rear side of the third baffle, and the front side and the rear side of each filter are respectively abutted against the front side and the rear side of the corresponding position of the box body structure.
Compared with the prior art, the invention has the advantages that: through the arrangement of the two air inlets and the corresponding filter screens, the area of a ventilation area of the filter screens can be changed in the rotating process, so that a scheme suitable for flow distribution of the left air inlet and the right air inlet is provided, the total air quantity does not need to be increased (namely the rotating speed of the impeller is not changed, the noise and the energy consumption are not increased), and the problem that the oil smoke absorption effect can be greatly improved on the same side of the corresponding range hood when one-side stir-frying cooking is carried out is solved; through the rotation process of the left/right oil scraping plates relative to the filter screen, the oil scraping plates are used for preliminarily scraping oil stains on the oil filtering plates to carry out self-cleaning, so that the range hood is ensured not to block the oil screen even if the range hood is used for a long time.
Drawings
FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;
fig. 2 is a schematic view of a range hood according to an embodiment of the present invention (viewed from bottom to top, different from the view shown in fig. 1);
FIG. 3 is a partial cross-sectional view of a range hood in accordance with an embodiment of the present invention;
fig. 4 is a cross-sectional view (transverse cross-section) of the lower case of the range hood according to the embodiment of the present invention;
fig. 5 is a schematic view of a partially exploded structure of the range hood according to the embodiment of the present invention;
FIG. 6 is a partial cross-sectional view of a portion of the components of a range hood in accordance with an embodiment of the present invention;
fig. 7 is a sectional view (front-rear section) of a hidden fan frame of the range hood according to the embodiment of the present invention;
FIG. 8 is a sectional view of the hidden fan frame of the range hood according to the embodiment of the present invention;
FIG. 9 is a sectional rear view of the hidden fan frame of the range hood according to the embodiment of the present invention;
FIG. 10 is a cross-sectional view of the hidden fan frame of the range hood according to the embodiment of the present invention showing a large amount of air intake at the right side and a small amount of air intake at the left side;
FIG. 11 is a cross-sectional rear view of the range hood according to the embodiment of the present invention hiding a large amount of intake air from the right side and a small amount of intake air from the left side of the blower housing;
FIG. 12 is a cross-sectional view of the range hood in the hidden fan frame of the present invention;
fig. 13 is a cross-sectional rear view of the range hood according to the embodiment of the present invention hiding the right side air intake state of the blower housing.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 to 4, a range hood includes a box structure composed of an upper box 1, a middle box 2, and a lower box 3, and a fan frame 4, wherein the upper box 1 is disposed under the fan frame 4, and the length of the upper box in the left-right direction is greater than that of the fan frame 4. The upper box body 1, the middle box body 2 and the lower box body 3 are all hollow box bodies. The bottom of the rear side of the upper box body 1 is connected with the top of the middle box body 2, the bottom of the middle box body 2 is connected with the rear side of the lower box body 3, the upper box body 1 and the middle box body 2 are in fluid communication with each other, the middle box body 2 and the lower box body 3 are in fluid communication with each other, and the upper box body 1 is in fluid communication with the air frame 4. The sizes of the upper box body 1 and the lower box body 3 in the front and back direction are larger than that of the middle box body 2, the middle box body 2 is a box body with a thin structure in the front and back direction, namely, the sectional area is reduced when the lower box body 3 is transited to the middle box body 2, and the sectional area is increased when the middle box body 2 is transited to the upper box body 1. A fan system (not shown) is provided in the fan frame 4.
The front side of the fan frame 4 is positioned behind the front side of the upper box body 1. After the range hood is installed, the fan frame 4 is hidden on the back of the hanging cabinet, the front part of the upper box body 1 is flush with a door plate of the hanging cabinet, and the top of the upper box body 1 can be used as a bottom plate of the hanging cabinet, so that the range hood is matched with the hanging cabinet with good appearance consistency.
In the present embodiment, the upper case 1 and the intermediate case 2 are integrally formed. The upper box body 1 or the middle box body 2 or the upper box body 1 and the middle box body 2 are not arranged, and the fan frame 4 is directly connected with the lower box body 3.
The lower box 3 has a first air inlet 51 and a second air inlet 52 formed at the bottom thereof and spaced apart from each other in the left-right direction. The lower case 3 includes a top wall 31 and a bottom wall 32 spaced up and down, a front side wall 33 and a rear side wall 34 spaced front and rear, and a left side wall 35 and a right side wall 36 spaced left and right. Wherein, the rear end of the top wall 31 extends to the bottom front side of the middle box body 2, the front side wall 33 is connected between the front end parts of the top wall 31 and the bottom wall 32, the rear side wall 34 is connected between the rear side of the middle box body 2 and the rear end part of the bottom wall 32, the left side wall 35 is connected between the left end parts of the top wall 31, the bottom wall 32, the front side wall 33 and the rear side wall 34, and the right side wall 36 is connected between the right end parts of the top wall 31, the bottom wall 32, the front side wall 33 and the rear side wall 34. Preferably, the top wall 31 and the bottom wall 32 are horizontal, and the front side wall 33, the rear side wall 34, the left side wall 35 and the right side wall 36 are vertical, so that the lower casing 3 is a rectangular parallelepiped. The first air inlet 51 and the second air inlet 52 are opened in the bottom wall 32. The top wall 31 can be used for placing objects.
The lower box 3 is provided inside with a first baffle 37, a second baffle 38 and a third baffle 39, the first baffle 37 and the second baffle 38 are arranged at a left-right interval, and the size of the first baffle 37 and the second baffle 38 in the front-rear direction, which extend backward from the front side wall 33, is smaller than that of the left side wall 35 and the right side wall 36, i.e. there is a certain interval between the rear ends of the first baffle 37 and the second baffle 38 and the rear side wall 34. A third baffle 39 is connected between the rear ends of the first and second baffles 37 and 38, preferably flush with the front side of the intermediate box 2. The first intake vent 51 is located between the left sidewall 35 and the first baffle 37, and the second intake vent 52 is located between the right sidewall 36 and the first baffle 37. And a first baffle 37 and a second baffle 38 are connected between the top wall 31 and the bottom wall 32, respectively. The first baffle 37 and the second baffle 38 may be parallel to the left side wall 35 (right side wall 36), respectively.
Accordingly, the space on the left side of the first shutter 37 in the lower case 3 constitutes a first chamber Q1, the space on the right side of the second shutter 38 constitutes a second chamber Q2, and the first chamber Q1 and the second chamber Q2 constitute an intake chamber.
Referring to fig. 3, 5 to 7, the range hood further includes a filter device, the filter device includes a first filter 61 and a second filter 62 which are arranged at left and right intervals, the first filter 61 corresponds to the first air inlet 51, and the second filter 62 corresponds to the second air inlet 52. The first filter 61 and the second filter 62 each have a sector shape in which a tip of each sector faces upward and an arc-shaped portion of each sector faces downward. The first strainer 61 includes a first strainer 611 at the bottom, the first strainer 611 having a downwardly convex arc shape, and the second strainer 62 includes a second strainer 621 at the bottom, the second strainer 621 having a downwardly convex arc shape. The side of the first filter 61 facing the second filter 62 is open to form a first outlet 612 and the side of the second filter 62 facing the first filter 61 is open to form a second outlet 622. A first plate 613 is provided on the side of the first filter 61 remote from the second filter 62, and has a flat plate shape, and a second plate 623 is provided on the side of the second filter 62 remote from the first filter 61, and has a flat plate shape. The first screen 611 and the first plate 613 are preferably of unitary construction, and the second screen 612 and the second plate 623 are preferably of unitary construction.
A first partition plate 71 and a second partition plate 72 are provided in the lower casing 3 at a portion corresponding to the middle casing 2 or in a casing above the lower casing 3, and in this embodiment, the first partition plate 71 and the second partition plate 72 are provided in the middle casing 2, and both the first partition plate 71 and the second partition plate 72 extend laterally, preferably horizontally. The first partition plate 71 extends from the left side of the middle box 2 to the middle, the second partition plate 72 extends from the right side of the middle box 2 to the middle, and an air outlet 73 is formed between the first partition plate 71 and the second partition plate 72.
The top of the first plate 623 is rotatably connected to the right end of the first partition plate 71 via a first rotating shaft 614, the top of the second plate 623 is rotatably connected to the left end of the second partition plate 72 via a second rotating shaft 624, and the first rotating shaft 614 and the second rotating shaft 624 extend in the front-rear direction, respectively. A connecting rod 63 is connected between the top of the first plate 613 and the top of the second plate 623, two ends of the connecting rod 63 are rotatably connected with the first plate 613 and the second plate 623 respectively, and the rotating shaft extends in the front-rear direction. The connecting rod 63 allows the two filters to rotate synchronously, which may preferably be in the form of an upwardly projecting arc.
The filter device further comprises a driving mechanism 64, in this embodiment, the driving mechanism 64 is a motor, and an output shaft thereof is directly or indirectly connected with the first rotating shaft 614 or the second rotating shaft 624, so as to drive the first rotating shaft 614 or the second rotating shaft 624. Alternatively, the drive mechanism 64 may be any other rotational drive mechanism known in the art. The drive mechanism 64 is attached to the front side of the intermediate casing 2 via an attachment case 641. The first rotation shaft 614 or the second rotation shaft 624 can be connected to the drive mechanism 64 through the intermediate case 2. Since the first filter 61 and the second filter 62 are connected by the connecting rod 63, when one of the filters rotates, the other filter is rotated. Two drive mechanisms 64 may be provided to drive each filter independently, in which case the linkage 63 need not be provided, but it is preferred to ensure that the two filters are rotated through the same angle.
The air outlet 73 is provided with water conservancy diversion spare 8 in the below, and water conservancy diversion spare 8 includes first guide plate 81 and second guide plate 82, and first guide plate 81 is located the left side of second guide plate 82, and first guide plate 81 is bellied arc right, and second guide plate 82 is bellied arc left. The top ends of the first and second guide plates 81 and 82 are connected to each other, and the connection is located between the two filters. The top ends of the first and second guide plates 81 and 82 are not lower than the lowest end of the outlet of each filter. The bottom ends of the first and second baffles 81 and 82 may be connected by a connecting plate 83.
After the oil smoke passes through the filter screen of the corresponding side, the oil smoke is discharged from the outlet of each filter, and the air direction is changed from horizontal to vertical upwards through the drainage effect of the guide plate of the corresponding side, so that the air volume loss can be reduced.
A first oil scraping plate 91 is arranged below the first filter 61, a second oil scraping plate 92 is arranged below the second filter 62, the first oil scraping plate 91 abuts against the first filter 61 to scrape oil stains on the first filter 61, and the second oil scraping plate 92 abuts against the second filter 62 to scrape oil stains on the second filter 62.
The bottom wall 32 of the lower box body 3 is provided with oil leakage holes 321 at the parts between the left end and the right end of the flow guide member 7 and the corresponding oil scraping plates, an oil cup 10 is arranged below the lower box body 3, the oil cup 10 covers each oil leakage hole 321, and oil stains scraped by the oil scraping plates can enter the oil cup 10 through the oil leakage holes 321 to be collected. The oil leakage hole 321 may be formed at other positions below the first strainer 611 and the second strainer 621.
The portion of the first strainer 611 of the first strainer 61 located on the left side of the first oil scraping plate 91 is regarded as an effective ventilation area, and the portion of the second strainer 621 of the second strainer 62 located on the right side of the second oil scraping plate 92 is regarded as an effective ventilation area. The fumes entering from the first chamber Q1 and the second chamber Q2 can pass only from the ventilation zone of the respective filter. When the oil scraping plate is not provided, a portion of the first strainer 611 on the left side of the bottom of the lower case 3 is regarded as an effective ventilation area, and a portion of the second strainer 621 of the second filter 62 on the right side of the bottom of the lower case 3 is regarded as an effective ventilation area. Alternatively, the first and second strainers 611 and 621 may be flat, and the bottom of the oil scraping plate or the lower case 3 may be provided in a shape protruding upward, so that the first and second strainers 611 and 621 maintain a position where they interfere with the bottom of the oil scraping plate or the lower case 3 during the rotation.
When two burners of two cookers cook simultaneously, the left and right ends of the filter screen of each filter are located at the same height by the control of the driving mechanism 64, see fig. 8 and 9, where arrows indicate the oil smoke flow path, that is, the ventilation areas on the left and right sides are the same, that is, the suction forces of the left and right air inlets are the same.
If the right side of the cooking range is stir-fried and cooked and the left side of the cooking range is steamed, the amount of oil smoke on the right side is larger than that on the right side for the range hood, referring to fig. 10 and 11, each filter is driven to rotate clockwise (clockwise in the view of fig. 11), and the ventilation area corresponding to the right side is increased. According to the principle of fluid continuity, Q is V S, wherein Q is the air volume, V is the flow velocity, and S is the ventilation area. Setting the total air quantity flowing through the oil filter plate to be QGeneral assemblyAnd because the rotation angles of the two filters are fixed, the total area of the oil fume flow passing through the net-shaped structure is constant. Because of QGeneral assemblyThe average wind speed through the two filters is not changed when the total area is not changed. That is, the left air volume Q is constant at the wind speedLeft side ofReduced right side air quantity QRight sideAnd correspondingly, the air volume of the first air inlet 51 on the left side of the range hood is reduced, and the air volume of the second air inlet 52 on the right side is increased, so that a better smoking effect is achieved when the left side is fried and cooked. Stir-frying on the left side and vice versa.
If only one side is cooking, the other side can be completely closed, see fig. 12 and 13, and the rotation is continued on the basis of fig. 10 and 11 until the first strainer 611 is completely located at the right side of the first scraping plate 91, and the passage of the oil smoke flow from the first air inlet 51 is completely closed.
In the culinary art in-process or after the culinary art, can adhere to a large amount of greasy dirt on each filter screen surface (lower surface), when each filter rotated, corresponding frizing board can be in the same direction as taking the greasy dirt of scraping off on the filter screen.
The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.
Claims (10)
1. The utility model provides a range hood, includes box structure and fan frame (4) that are used for setting up fan system, the box structure sets up the below at fan frame (4), the box structure includes box (3) down, first air intake (51) and second air intake (52) that interval arrangement about seted up on box (3) down, its characterized in that:
a first chamber (Q1) and a second chamber (Q2) which are independent air inlet chambers are formed in the lower box body (3), the first chamber (Q1) corresponds to the first air inlet (51), and the second chamber (Q2) corresponds to the second air inlet (52);
the range hood further comprises a first filter (61) and a second filter (62), wherein the first filter (61) corresponds to the first chamber (Q1), and the second filter (62) corresponds to the second chamber (Q2); the first filter (61) comprises a first filter screen (611), the second filter (62) comprises a second filter screen (621), the first filter screen (611) has a position which can directly or indirectly abut against the bottom of the lower case (3), the second filter screen (621) has a position which can directly or indirectly abut against the bottom of the lower case (3), the portion of the first filter screen (611) on the left side of the bottom abutment of the lower case (3) is a ventilation area corresponding to the first chamber (Q1), and the portion of the second filter screen (621) on the right side of the bottom abutment of the lower case (3) is a ventilation area corresponding to the second chamber (Q2); the fumes entering from the first chamber (Q1) and the second chamber (Q2) can only pass through the ventilation zone of the respective sieve;
the first filter (61) and the second filter (62) are each rotatable about a rotational axis extending in the front-rear direction, thereby adjusting the area of the ventilation area of the first screen (611) and the second screen (621).
2. The range hood of claim 1, wherein: the first filter screen (611) and the second filter screen (621) are both in an arc shape protruding downwards.
3. The range hood of claim 2, wherein: the first filter (61) and the second filter (62) are both in the shape of segments, the tip end of each segment faces upwards, the first filter screen (611) and the second filter screen (621) are the bottoms of the corresponding filters respectively, one side of the first filter (61) facing the second filter (62) is opened to form a first outlet (612), and one side of the second filter (62) facing the first filter (61) is opened to form a second outlet (622).
4. The range hood of claim 3, wherein: range hood still includes water conservancy diversion spare (8), water conservancy diversion spare (8) are including first guide plate (81) and second guide plate (82), first guide plate (81) are located the left side of second guide plate (82), first guide plate (81) are bellied arc right, second guide plate (82) are bellied arc left, the top interconnect of first guide plate (81) and second guide plate (82) to the junction is located between two filters, the top of first guide plate (81) and second guide plate (82) is not less than the least significant end of the export of each filter.
5. The range hood of claim 1, wherein: the air purifier is characterized in that a first partition plate (71) and a second partition plate (72) which extend transversely are arranged in the box body structure, the first partition plate (71) extends from the left side of the box body structure to the middle, the second partition plate (72) extends from the right side of the box body structure to the middle, an air outlet (73) is formed between the first partition plate (71) and the second partition plate (72), the first filter (61) is rotatably connected with the right end of the first partition plate (71), and the second filter (62) is rotatably connected with the left end of the second partition plate (72).
6. The range hood of claim 1, wherein: a connecting rod (63) is connected between the first filter (61) and the second filter (62), and two ends of the connecting rod (63) are respectively connected with the first filter (61) and the second filter (62) in a rotating mode.
7. The range hood of claim 6, wherein: the range hood further comprises a driving mechanism (64), and the driving mechanism (64) drives the first filter (61) or the second filter (62) to rotate.
8. The range hood of claim 1, wherein: the below of first filter (61) is provided with thereby can strike off first frizing board (91) of greasy dirt on first filter screen (611) with first filter screen (611), thereby the below of second filter (62) is provided with can strike off second frizing board (92) of greasy dirt on second filter screen (621) with second filter screen (621), first filter screen (611) of first filter (61) is located the left part of first frizing board (91) and is the ventilation zone, and the part that second filter screen (621) of second filter (62) is located second frizing board (92) right side is the ventilation zone.
9. The range hood of claim 1, wherein: an oil leakage hole (321) is formed in the bottom of the lower box body (3), an oil cup (10) is arranged below the lower box body (3), and the oil leakage hole (321) is covered by the oil cup (10).
10. The range hood according to any one of claims 1 to 9, wherein: the inside of lower box (3) is provided with first baffle (37), second baffle (38) and third baffle (39), interval arrangement about first baffle (37) and second baffle (38) to all have certain interval with the rear side of lower box (3), third baffle (39) are connected between the rear end of first baffle (37) and second baffle (38), first cavity (Q1) are located the left side of first baffle (37), second cavity (Q2) are located the right side of second baffle (38), first filter (61) and second filter (62) are located third baffle (39) rear side, and the front and back both sides of every filter and the front and back both sides of box structure relevant position are butt respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599559.0A CN113217967B (en) | 2021-05-31 | 2021-05-31 | Fume exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599559.0A CN113217967B (en) | 2021-05-31 | 2021-05-31 | Fume exhauster |
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| Publication Number | Publication Date |
|---|---|
| CN113217967A true CN113217967A (en) | 2021-08-06 |
| CN113217967B CN113217967B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110599559.0A Active CN113217967B (en) | 2021-05-31 | 2021-05-31 | Fume exhauster |
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| Country | Link |
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| CN (1) | CN113217967B (en) |
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| CN113639293A (en) * | 2021-08-31 | 2021-11-12 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN113719872A (en) * | 2021-08-31 | 2021-11-30 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN114674024A (en) * | 2022-05-31 | 2022-06-28 | 杭州老板电器股份有限公司 | Range hood and control method thereof |
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| KR20210050430A (en) * | 2019-10-28 | 2021-05-07 | 엘지전자 주식회사 | Kitchen hood |
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| WO2018176969A1 (en) * | 2017-04-01 | 2018-10-04 | 宁波方太厨具有限公司 | Exhaust hood |
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| CN113639293A (en) * | 2021-08-31 | 2021-11-12 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN113719872A (en) * | 2021-08-31 | 2021-11-30 | 宁波方太厨具有限公司 | Range hood and control method thereof |
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| CN114674024A (en) * | 2022-05-31 | 2022-06-28 | 杭州老板电器股份有限公司 | Range hood and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN113217967B (en) | 2024-05-17 |
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