CN107975846B - Stepless speed regulating fume exhaust fan - Google Patents
Stepless speed regulating fume exhaust fan Download PDFInfo
- Publication number
- CN107975846B CN107975846B CN201710409926.XA CN201710409926A CN107975846B CN 107975846 B CN107975846 B CN 107975846B CN 201710409926 A CN201710409926 A CN 201710409926A CN 107975846 B CN107975846 B CN 107975846B
- Authority
- CN
- China
- Prior art keywords
- air
- regulating plate
- air regulating
- inlet
- collecting hood
- 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.)
- Active
Links
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
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to a stepless speed regulation range hood, which comprises a fume collecting hood (1) and a rectifying plate (2) corresponding to a fume suction inlet, wherein a first air inlet (21) and a second air inlet (22) are formed between the edges of the left side and the right side of the rectifying plate (2) and the inner side wall (12) of the fume collecting hood (1); the method is characterized in that: a first air regulating plate (31) corresponding to the first air inlet (21) and a second air regulating plate (32) corresponding to the second air inlet (22) are rotatably connected to the rectifying plate (2); the inner side wall of the fume collecting hood (1) is arc-shaped on the longitudinal section, and when the air regulating plate rotates from the fume collecting hood inlet to the fume suction inlet, the distance between the outer side edge of the air regulating plate and the inner side wall of the fume collecting hood (1) is gradually increased along the extension line direction of the air regulating plate on the longitudinal section. The invention can carry out stepless speed regulation on the oil smoke suction rate, and change the range of a negative pressure smoke collecting area, thereby improving the oil smoke suction and discharge effect; the flow guiding effect on the oil smoke air flow is obvious, and the oil-gas separation effect is good.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a stepless speed regulation range hood.
Background
The burners of the common household kitchen range are generally divided into left and right, and users often only use one side of the burner in the cooking process, and sometimes use two sides of the burner at the same time. If the user only uses the left furnace end to cook dishes in the actual cooking process, or uses the left side to cook dishes on the right side to steam rice, then for the range hood, the oil smoke concentration and the oil smoke particle potential on the left side are necessary to be much larger than those on the right side, the oil smoke escape condition is easy to occur on the left side, and if the flow suction on the right side of the range hood can be properly distributed on the left side at this time, the smoking effect can be necessarily improved.
CN201410543010.X discloses a top-draft range hood, including collection petticoat pipe, first rectification board and second rectification board, form first, second air inlet passageway respectively between first, second rectification board and the collection petticoat pipe inner chamber wall, first, second rectification board rotates the setting in installation axle both sides, first, second actuating mechanism drives first, second rectification board respectively and rotates in order to adjust the air intake area size of two air inlet passageways, install the first, second temperature sensor that can two air intake temperatures of perception on collection petticoat pipe, first, second actuating mechanism drives first rectification board and second rectification board according to the air intake temperature difference of both sides respectively, so that air intake area and homonymy air intake temperature phase-match. According to the invention, the heating conditions at two sides are judged by sensing the distribution of the temperature fields at the left side and the right side through the two temperature sensors, the directions of big smoke and small smoke which possibly appear are judged in advance, and the distribution of the left negative pressure area and the right negative pressure area is regulated by regulating the area of the left air inlet and the right air inlet through the two driving mechanisms, so that the oil smoke absorbing effect is improved.
The invention designs the rectifying plate into two rotatable rectifying plates, which can only adjust the distribution of the negative pressure area and can not synchronously adjust the flow distribution and the flow velocity of the air inlet; and the adjustment of the fairing is relatively cumbersome.
Disclosure of Invention
The invention aims to solve the technical problem of providing a stepless speed regulating range hood capable of changing the distribution of a negative pressure area, the flow distribution and the flow velocity in real time according to the lampblack condition.
The technical scheme adopted for solving the technical problems is as follows: the stepless speed regulation range hood comprises a fume collecting hood and a rectifying plate corresponding to a fume suction inlet, wherein a first air inlet and a second air inlet are formed by gaps between the edges of the left side and the right side of the rectifying plate and the inner side wall of the fume collecting hood; the method is characterized in that:
the rectifying plate is rotationally connected with a first air regulating plate corresponding to the first air inlet and a second air regulating plate corresponding to the second air inlet;
the inner side wall of the fume collecting hood is arc-shaped on the longitudinal section, and when the air regulating plate rotates from the fume collecting hood inlet to the fume suction inlet, the distance between the outer side edge of the air regulating plate and the inner side wall of the fume collecting hood is gradually increased along the extension line direction of the air regulating plate on the longitudinal section.
The two air regulating plates can be regulated in various modes, and can be manually or automatically, preferably automatically; the two air regulating plates can be connected in a plurality of modes, preferably, the first air regulating plate and the second air regulating plate can be respectively connected to the rectifying plate in a rotating way through a first rotating shaft and a second rotating shaft;
the first driving device is in driving connection with the first air regulating plate, and the second driving device is in driving connection with the second air regulating plate.
Preferably, the first driving device and the second driving device are both air cylinders, and piston rods of the air cylinders are connected with corresponding air regulating plates through arc-shaped connecting rods;
and two ends of the connecting rod are respectively hinged with a piston rod of the air cylinder and the corresponding air regulating plate.
Or the first driving device and the second driving device are electric push rods, and the push rods of the electric push rods are connected with corresponding air regulating plates through arc-shaped connecting rods;
and two ends of the connecting rod are respectively hinged with a piston rod of the air cylinder and the corresponding air regulating plate.
As a further improvement of the above schemes, a first smoke sensor and a second smoke sensor are arranged on the panel of the fume collecting hood at intervals, and the first smoke sensor and the second smoke sensor are respectively positioned at the two outer sides of the rectifying plate (2) corresponding to the first air inlet and the second air inlet;
the first smoke sensor, the second smoke sensor, the first driving device and the second driving device are all electrically connected with corresponding ports of the control element.
The first air regulating plate, the second air regulating plate and the minimum distance beta between the inner side walls of the fume collecting hood 1 、β 2 The control unit is used for controlling the smoke concentration alpha detected by the first smoke sensor and the second smoke sensor 1 、α 2 The adjustment is determined and controlled as follows:
compared with the prior art, when the stepless speed regulation range hood works, the range hood judges the oil smoke amount at the left side and the right side of the range hood according to the oil smoke concentration detected by the smoke sensor, so that the position of the air regulating plate is changed in real time, the gap between the air regulating plate and the inner side wall of the fume collecting hood is changed, the stepless speed regulation oil smoke suction effect is obtained, the flow of the negative pressure area can be subjected to stepless distribution, the flow rate of the air inlet is changed, and the two are matched with each other, so that the suction effect of the range hood is greatly improved; the air regulating plate has a flow guiding function on the oil smoke air flow, so that the noise of the air inlet is obviously reduced; meanwhile, the flow passage area through which the oil smoke flows is changed in the flowing process, so that the oil smoke flow velocity is changed, and the oil-gas separation effect can be further improved.
Drawings
FIG. 1 is a schematic diagram of the adjusting principle of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an assembled structure according to an embodiment of the present invention;
FIG. 3 is a longitudinal cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic perspective view of an assembled structure of a rectifying plate, a driving device and an air regulating plate according to an embodiment of the present invention;
fig. 5 to 8 are schematic diagrams illustrating different working states according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 8, the stepless speed regulating range hood includes:
the fume collecting hood 1 is connected below a case 15, and is formed by butt joint of an outer cover plate 11 and an inner cover plate 12, wherein the middle part of the inner cover plate 12 is provided with a fume suction inlet 13 communicated with a volute inlet (not shown in the figure) of the fume exhauster. The part between the lowest end of the inner cover plate 12 and the fume suction inlet 13 is in an arc-shaped structure.
The rectifying plate 2 is arranged in the middle of the inner cover plate 12 corresponding to the oil smoke suction inlet 13 and is connected to the fume collecting hood 1 through a connecting plate 14; the fume suction inlet can be opened when the fume extractor works, and the fume suction inlet can be closed when the fume extractor does not work; is of conventional construction. Other structures in the prior art can also be selected as required.
The distance between each point from the fume collecting hood inlet to the fume suction inlet and the adjacent side edge of the rectifying plate 2 on the inner side wall 12 of the fume collecting hood 1 is gradually increased. As shown in fig. 1.
The first air inlet 21 and the second air inlet 22 are arranged between the left side edge and the right side edge of the rectifying plate 2 and the inner side wall 12 of the fume collecting hood 1.
The air regulating plate is provided with two air regulating plates, wherein one end edges of the first air regulating plate 31 and the second air regulating plate 32 are respectively and rotatably connected to a first rotating shaft 33 and a second rotating shaft 34, and the first rotating shaft 33 and the second rotating shaft 34 are supported and limited at positions of the rectifying plate 2 close to two side edges.
The rectifying plate 2 is further provided with a first driving device 35 and a second driving device 36, the first driving device 35 and the second driving device 36 in this embodiment are electric push rods, and push rods 37 of the electric push rods are connected with the corresponding first air regulating plate 31 and second air regulating plate 32 through connecting rods 38.
The connecting rod 38 has an arc structure, and two ends of the connecting rod are respectively hinged with the push rod 37 and the corresponding air regulating plate.
The first driving device 35 and the second driving device 36 can also be replaced by air cylinders, and the piston rods of the air cylinders are connected with corresponding air regulating plates through arc-shaped connecting rods.
The rectifying plate 2 is rotatably connected with a first air regulating plate 31 corresponding to the first air inlet 21 and a second air regulating plate 32 corresponding to the second air inlet 22;
the width of the first air regulating plate 31 and the second air regulating plate 32 are matched with the width of the corresponding first air inlet 21 and second air inlet 22, and when the air conditioner is not in operation, the two air regulating plates close the two air inlets.
Two smoke sensors, including a first smoke sensor 41 and a second smoke sensor 42, for detecting the concentration of smoke passing through the first air inlet 21 and the second air inlet, respectively; two smoke sensors are arranged on the lower panel 14 of the fume collecting hood 1 and are positioned on two outer sides of the rectifying plate 2.
The first smoke sensor 41, the second smoke sensor 42, the first drive means 35 and the second drive means 36 are each electrically connected to corresponding ports of a control unit (not shown in the figures).
In operation, the control unit determines the concentration of smoke alpha detected by the first smoke sensor 41 and the second smoke sensor 42 1 、α 2 The operation of the two driving devices is controlled according to the following formula, so as to adjust the minimum distance beta between the first air regulating plate 31, the second air regulating plate 32 and the inner side wall of the fume collecting hood 1 1 、β 2 ；
The gap between the air regulating plate and the inner side wall of the fume collecting hood can be changed along with the different rotation positions of the air regulating plate, as shown in fig. 1 and 8; the distance between each point on the inner side wall of the fume collecting hood and the rectifying plate is gradually increased from bottom to top; according to the equation of fluid continuity,when the flow Q is unchanged, the smaller the cross sectional area S between the air regulating plate and the inner side wall of the fume collecting hood is, the larger the airflow speed V is, so the airflow speed A corresponds to A, B, C, D when the positions of the air regulating plate are different>B>C>D. With the rotation of the air regulating plate, the stepless speed regulating effect can be obtained.
When the air regulating plates are positioned in the range of an alpha included angle formed by the edges of the left side and the right side of the oil smoke suction inlet and the connecting line of the corresponding rotating shaft, the suction force and the negative pressure area are matched with each other, so that good suction force can be obtained, meanwhile, the range of the negative pressure area is large, oil smoke can be effectively prevented from escaping, and good suction effect can be obtained; the air regulating plate has obvious flow guiding effect on the lampblack airflow and the noise is reduced; when the air regulating plate is positioned at the connecting line position of the rotating shaft and the central line L of the oil smoke suction inlet, the suction effect is best, and the sound quality is best.
Meanwhile, because the oil smoke enters the fume collecting hood at the air inlet at a high flow rate, the volume is suddenly increased after the oil smoke passes over the air regulating plate, the oil smoke speed is reduced, and the oil-gas separation can be further improved.
When the smoke detection device works, when the concentration of the oil smoke detected by the two smoke sensors does not reach a set threshold value, the oil smoke is judged to be smaller. Otherwise, the oil smoke amount is judged to be larger. And logically combining according to the oil smoke concentration conditions acquired by the two smoke sensors, so as to adjust the positions and angles of the first air regulating plate and the second air regulating plate.
Fig. 5 to 7 show the operation of two damper plates in three typical cases.
In the cooking process, for example, when rice steaming is performed, water is boiled or simple frying cooking operation is performed, the generated oil smoke amount is small, at the moment, the oil smoke concentrations detected by the two smoke sensors do not reach the set threshold value, the oil smoke amount on two sides is judged to be small, the first air regulating plate and the second air regulating plate are rotated through the driving device, the first air regulating plate and the second air regulating plate are positioned at the connecting line position of the rotating shaft and the central line L of the oil smoke suction inlet, as shown in fig. 7, the area of a negative pressure smoke collecting area is maximum, and according to the fluid continuous characteristic, under the condition that the flow is unchanged, the speed of the air inlet is small, the noise generated by the range hood is small, and because the two air regulating plates point to the center of the suction inlet, the oil smoke guiding effect is good, and the noise is further improved. And because the amount of the generated oil smoke is relatively small, the oil smoke can be completely sucked by adopting the small wind speed of the wind inlet and matching with a large negative pressure area.
When the smoke concentration detected by the smoke sensor on the left side reaches the set threshold value, and the smoke concentration detected by the smoke sensor on the right side does not reach the set threshold value, for example, when the stove head on the left side of the stove performs quick-frying cooking and the stove head on the right side performs rice steaming, at this time, the left side smoke amount is large, the right side smoke amount is small, as shown in fig. 5, the first air regulating plate 31 is adjusted to be positioned at the connecting line position of the rotating shaft and the central line L of the smoke suction inlet, the second air regulating plate 32 rotates clockwise, so that the air inlet area of the second air inlet is reduced, and according to the continuity of fluid, under the condition that the total flow is unchanged, the right side flow is small, and the left side flow is large. At this time, the smoking effect on the left side is promoted, and the area of the air inlet on the right side is adjusted in real time according to the ratio of the oil smoke concentrations detected by the two smoke sensors, so that the flow on the left side and the flow on the right side are adjusted in real time. Because the oil smoke amount on the right side is smaller, the relatively smaller flow can be sucked and discharged cleanly. When the oil smoke amount on the left side is detected to be small and the oil smoke amount on the right side is detected to be large, the method is reverse.
When the oil smoke concentrations detected by the two smoke sensors reach the set threshold, the oil smoke amounts at the two sides are large at the moment, as shown in fig. 6, the first air regulating plate 31 rotates anticlockwise, the second air regulating plate 32 rotates clockwise, the inlet area is reduced, according to the continuity of fluid, under the condition that the total flow is unchanged, the air inlet speeds at the two sides are greatly increased, and the oil smoke is quickly sucked into the range hood before the oil smoke is diffused and escaped. According to the change of the oil smoke concentration detected by the two smoke sensors, the area of the air inlets at the left side and the right side is adjusted in real time, and the adjusting formula is thatAlpha in the formula 1 For the oil smoke concentration, alpha, detected by the left smoke sensor 2 For the oil smoke concentration, beta, detected by the right smoke sensor 1 Beta is the distance between the movable end of the first air regulating plate and the inner side wall of the fume collecting hood (i.e. the left minimum air inlet area) 2 The distance between the movable end of the second air regulating plate and the inner side wall of the fume collecting hood (namely the right minimum air inlet area) is used for changing the air speed of the negative pressure area and the air inlet, so that the fume sucking effect of the fume exhauster is optimal.
In the description of the present invention, technical terms such as "left", "right", "middle", "clockwise", "counterclockwise", etc. refer to directions or positional relationships based on directions or positional relationships shown in the drawings, and are merely for convenience of description and understanding of the technical solution of the present invention, the above description is not intended to limit the present invention, and the present invention is not limited to the examples described above, but changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present invention should be considered as the scope of the present invention.
Claims (6)
1. The stepless speed regulation range hood comprises a fume collecting hood (1) with a fume suction inlet and a rectifying plate (2) corresponding to the fume suction inlet, wherein a first air inlet (21) and a second air inlet (22) are formed by gaps between the edges of the left side and the right side of the rectifying plate (2) and the inner side wall (12) of the fume collecting hood (1); the method is characterized in that:
a first air regulating plate (31) corresponding to the first air inlet (21) and a second air regulating plate (32) corresponding to the second air inlet (22) are rotatably connected to the rectifying plate (2);
the inner side wall of the fume collecting hood (1) is arc-shaped on the longitudinal section, and when the air regulating plate rotates from the fume collecting hood inlet to the fume suction inlet, the distance between the outer side edge of the air regulating plate and the inner side wall of the fume collecting hood (1) is gradually increased along the extension line direction of the air regulating plate on the longitudinal section.
2. The stepless speed regulating range hood according to claim 1, characterized in that the first air regulating plate (31) and the second air regulating plate (32) are respectively connected to the rectifying plate (2) in a rotating way through a first rotating shaft (33) and a second rotating shaft (34);
the first driving device (35) is in driving connection with the first air regulating plate (31), and the second driving device (36) is in driving connection with the second air regulating plate (32).
3. The stepless speed regulating range hood according to claim 2, characterized in that the first driving device (35) and the second driving device (36) are both cylinders, and the piston rods of the cylinders are connected with the corresponding air regulating plates through arc-shaped connecting rods (38);
and two ends of the connecting rod (38) are respectively hinged with a piston rod of the air cylinder and the corresponding air regulating plate.
4. The stepless speed regulating range hood according to claim 2, characterized in that the first driving device (35) and the second driving device (36) are electric push rods, and push rods (37) of the electric push rods are connected with corresponding air regulating plates through arc-shaped connecting rods (38);
the two ends of the connecting rod (38) are respectively hinged with a push rod (37) of the electric push rod and the corresponding air regulating plate.
5. A stepless speed regulating range hood according to claim 2, 3 or 4, characterized in that a first smoke sensor (41) and a second smoke sensor (42) are arranged on a panel of the fume collecting hood (1) at intervals, and the first smoke sensor (41) and the second smoke sensor (42) are respectively positioned at two outer sides of the rectifying plate (2) corresponding to the first air inlet (21) and the second air inlet (22);
the first smoke sensor (41), the second smoke sensor (42), the first driving device (35) and the second driving device (36) are all electrically connected with corresponding ports of the control unit.
6. The stepless speed regulating range hood according to claim 5, characterized in that the minimum distance beta between the first air regulating plate (31), the second air regulating plate (32) and the inner side wall of the fume collecting hood (1) 1 、β 2 -a smoke concentration alpha detected by the control unit in dependence of the first (41) and second (42) smoke sensors 1 、α 2 The adjustment is determined and controlled as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409926.XA CN107975846B (en) | 2017-06-02 | 2017-06-02 | Stepless speed regulating fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409926.XA CN107975846B (en) | 2017-06-02 | 2017-06-02 | Stepless speed regulating fume exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107975846A CN107975846A (en) | 2018-05-01 |
| CN107975846B true CN107975846B (en) | 2023-08-18 |
Family
ID=62012236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710409926.XA Active CN107975846B (en) | 2017-06-02 | 2017-06-02 | Stepless speed regulating fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107975846B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373384A (en) * | 2018-10-26 | 2019-02-22 | 浙江欧琳生活健康科技有限公司 | A kind of kitchen ventilator |
| CN113405132A (en) * | 2021-06-23 | 2021-09-17 | 海信(广东)厨卫系统股份有限公司 | Smoke collecting hood and using method thereof |
| CN113834104B (en) * | 2021-09-08 | 2023-06-20 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN113915655B (en) * | 2021-10-27 | 2023-01-03 | 宁波方太厨具有限公司 | Filter screen, range hood and oil smoke filtering method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09222249A (en) * | 1996-02-14 | 1997-08-26 | Fuji Kogyo Kk | Range hood fan |
| JP2008082634A (en) * | 2006-09-28 | 2008-04-10 | Matsushita Electric Ind Co Ltd | Range hood |
| CN101520204A (en) * | 2009-04-16 | 2009-09-02 | 杭州六易科技有限公司 | Baffle-rotary lampblack absorber capable of adjusting area of air suction port |
| CN204421122U (en) * | 2014-12-25 | 2015-06-24 | 宁波方太厨具有限公司 | The adjustable range hood of a kind of air-admitting surface |
| CN204629629U (en) * | 2015-01-29 | 2015-09-09 | 浙江苏泊尔家电制造有限公司 | Range hood |
| CN205227459U (en) * | 2015-12-07 | 2016-05-11 | 浙江苏泊尔家电制造有限公司 | Wind -guiding structure and lampblack absorber |
| CN205505124U (en) * | 2016-01-28 | 2016-08-24 | 浙江信利电器有限公司 | Range hood |
| JP2016161180A (en) * | 2015-02-27 | 2016-09-05 | 健児 吉村 | Cooking range hood with distributing plate |
| CN206191707U (en) * | 2016-11-25 | 2017-05-24 | 宁波方太厨具有限公司 | Side suction type range hood |
| CN206959052U (en) * | 2017-06-02 | 2018-02-02 | 宁波方太厨具有限公司 | A kind of stepless speed regulation range hood |
-
2017
- 2017-06-02 CN CN201710409926.XA patent/CN107975846B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09222249A (en) * | 1996-02-14 | 1997-08-26 | Fuji Kogyo Kk | Range hood fan |
| JP2008082634A (en) * | 2006-09-28 | 2008-04-10 | Matsushita Electric Ind Co Ltd | Range hood |
| CN101520204A (en) * | 2009-04-16 | 2009-09-02 | 杭州六易科技有限公司 | Baffle-rotary lampblack absorber capable of adjusting area of air suction port |
| CN204421122U (en) * | 2014-12-25 | 2015-06-24 | 宁波方太厨具有限公司 | The adjustable range hood of a kind of air-admitting surface |
| CN204629629U (en) * | 2015-01-29 | 2015-09-09 | 浙江苏泊尔家电制造有限公司 | Range hood |
| JP2016161180A (en) * | 2015-02-27 | 2016-09-05 | 健児 吉村 | Cooking range hood with distributing plate |
| CN205227459U (en) * | 2015-12-07 | 2016-05-11 | 浙江苏泊尔家电制造有限公司 | Wind -guiding structure and lampblack absorber |
| CN205505124U (en) * | 2016-01-28 | 2016-08-24 | 浙江信利电器有限公司 | Range hood |
| CN206191707U (en) * | 2016-11-25 | 2017-05-24 | 宁波方太厨具有限公司 | Side suction type range hood |
| CN206959052U (en) * | 2017-06-02 | 2018-02-02 | 宁波方太厨具有限公司 | A kind of stepless speed regulation range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107975846A (en) | 2018-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107975846B (en) | Stepless speed regulating fume exhaust fan | |
| CN108006732B (en) | Range hood with adjustable suction effect | |
| CN206330191U (en) | A kind of range hood with smoke deflector | |
| CN206959054U (en) | Speed governing range hood | |
| CN108131705A (en) | The control method of range hood and range hood | |
| CN107339727A (en) | Rotate air-curtain type suction soot device | |
| CN206959055U (en) | A kind of range hood of adjustable suction effect | |
| CN104329708A (en) | Near suction type range hood | |
| CN105783064A (en) | Extractor hood with absorption assisting device and method for pumping and absorbing oil fume | |
| CN206320819U (en) | A kind of side extraction cooking fume extractor | |
| CN113310087A (en) | Fume exhaust fan | |
| CN105546603A (en) | Range hood and wind speed and wind pressure sensor for range hood | |
| CN206959052U (en) | A kind of stepless speed regulation range hood | |
| CN113237112B (en) | Cooking fume exhauster | |
| CN208090754U (en) | A kind of range hood with two fans in parallel | |
| CN205606670U (en) | Range hood with help and inhale device | |
| CN206959053U (en) | A kind of speed governing range hood | |
| CN107975844B (en) | Speed-regulating range hood | |
| CN110207233A (en) | A kind of laterally pushed type kitchen ventilator | |
| CN112254188B (en) | Control method of cooking device | |
| CN106016399B (en) | A kind of range hood plug-flow mechanism and plug-flow method | |
| CN208011820U (en) | A kind of energy saving kitchen ventilator of oblique wind curtain type | |
| CN207095322U (en) | Kiln anti-overflow fume extracting device and burning kiln | |
| CN219389846U (en) | Fume extractor and integrated kitchen | |
| CN106642261B (en) | A kind of range hood property regulation device and application have the range hood of the device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |