CN110260374B - Double-air-inlet range hood and control method thereof - Google Patents
Double-air-inlet range hood and control method thereof Download PDFInfo
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- CN110260374B CN110260374B CN201910464475.9A CN201910464475A CN110260374B CN 110260374 B CN110260374 B CN 110260374B CN 201910464475 A CN201910464475 A CN 201910464475A CN 110260374 B CN110260374 B CN 110260374B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- 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
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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
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a double-air-inlet range hood which comprises a shell, a panel arranged on the front side of the shell and a fan system arranged in the shell, wherein a first air inlet serving as a lateral air inlet is formed in the panel; the bottom air inlet device can ascend from the outlet to enter the air inlet at the bottom of the shell in a closed manner or descend to expose out of the shell to open the air inlet at the bottom. Also discloses a control method of the range hood. Compared with the prior art, the invention has the advantages that: through setting up two air intakes that can open and close, increase air intake area widely, reduce the air intake resistance, promote the oil absorption cigarette effect, can keep kitchen air good all the time.
Description
Technical Field
The invention relates to an oil fume purification device, in particular to a double-air-inlet range hood and a control method thereof.
Background
The range hood is used as an essential kitchen appliance for each family, the range hood has the effects that oil smoke is sucked from the air inlet through the impeller rotating at a high speed in the volute, the oil smoke is filtered by the impeller, the filtered oil smoke is discharged from the air outlet, the purification work of kitchen air is completed, the reasonable air inlet is favorable for improving the oil smoke suction effect, the escape of the oil smoke is reduced, and the air quality of the kitchen is improved.
The range hood on the current market generally adopts a single air inlet, and is divided into a European range hood, a near-suction range hood and a submerged range hood on the current market according to the arrangement mode of the air inlets. When the European-style range hood is in an on-hook state, a user can easily touch the head, when the near-suction range hood is in an on-hook state, the smoke baffle plate can easily shield the sight of the user, when the submerged range hood is in a low-suction state, the high-temperature range hood can be easily and directly sucked into the range hood, the temperature of the inner cavity of the range hood is overhigh, and the service life of the range hood is influenced. Wherein the air inlet of the European-style range hood is far away from the pot and is approximately 600 mm and 700mm above the stove; the air inlet of the near-suction range hood is close to the pan and is approximately positioned 400 mm above the stove and 500mm above the stove; the air inlet of the submersible range hood is closest to the pot and is approximately positioned above the stove by 100 mm and 200 mm; the air inlet area of the air inlet of the range hood is small, so that the resistance of the air inlet is large, the air speed loss is large, the negative pressure of the air inlet is small when the pressure exists at the air outlet, the air speed is too low, the oil smoke escapes, and the experience of customers is influenced.
With the continuous improvement of quality of life, the continuous pursuit of big amount of wind and big wind pressure of range hood manufacturer to try to get better range hood effect, for obtaining better user experience, prior art generally increases through the size to parts such as wind channel, impeller, motor, has so both increased the cost, has also wasted the resource. Meanwhile, the size of the parts is increased, so that the size of the range hood is increased inevitably, the design of a kitchen cabinet is influenced, the decoration cost is increased, and the appearance of a kitchen is attractive.
For this reason, there are also solutions to provide a plurality of air inlets. The double-air-inlet direct-suction type range hood with the fan, disclosed in the Chinese patent with the application number of 201320425553.2, comprises a case formed by connecting a transverse case body and a vertical case body, wherein a first vertical air channel is formed in the vertical case body in a hollow mode, a first smoke inlet and a second smoke inlet communicated with the first vertical air channel are respectively formed in the upper portion and the lower portion of the vertical case body, a smoke collecting hood is arranged on the case body, an oil cup is arranged on the lower portion of the case body, and the fan is arranged in the smoke collecting hood.
The range hood has the advantages that the smoke inlet is always in an open state, the smoke suction effect is poor, the oil smoke is easy to escape, the air inlet is formed in the bottom of the range hood, the range hood is closer to a pot, the oil smoke cannot contact with the outside air like top suction and side suction, the temperature of the oil smoke sucked into the range hood is higher, the whole range hood works at high temperature for a long time, and parts (such as an oil smoke sensor shell, a switch shell and a motor) of plastics, rubber, electric devices and the like which have large influence on the internal heating of the range hood are easy to age or fatigue damage, so that the range hood is damaged.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a double-air-inlet range hood aiming at the problems in the prior art, so that the oil smoke suction effect is improved, and the oil smoke escape is reduced.
The first technical problem to be solved by the invention is to provide a control method of the range hood.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a double-air-inlet range hood comprises a shell, a panel arranged on the front side of the shell and a fan system arranged in the shell, wherein a first air inlet serving as an air inlet on the side part is formed in the panel; the method is characterized in that: the bottom air inlet device can ascend from the outlet to enter the air inlet at the bottom of the shell in a closed manner or descend to expose out of the shell to open the air inlet at the bottom.
The bottom air inlet device comprises a hollow frame body, the second air inlet is formed in the front side of the frame body, and the top end of the frame body is open to form an air outlet.
And a condensing plate is arranged at the air outlet.
The panel inboard is provided with and is used for driving the first actuating mechanism that keeps off cigarette board pivoted.
And a second driving mechanism for driving the bottom air inlet device to lift is arranged in the shell.
The second driving mechanism is a motor and further comprises a transmission mechanism for converting the output of the motor into linear motion, and the transmission mechanism is used for being connected to the bottom air inlet device.
Still be provided with guiding mechanism in the casing, guiding mechanism includes the connecting block of being connected with drive mechanism's output, first guide rail and the second guide rail that sliding fit and extend on vertical mutually, first guide rail is connected with the rear side in the casing, the second guide rail is connected with the rear side of connecting block and bottom hot blast blowpipe apparatus.
The front side of the panel is provided with an oil smoke sensor for controlling the first driving mechanism, and the shell is internally provided with a temperature control sensor for controlling the second driving mechanism.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a control method of the range hood is characterized in that: the method comprises the following steps:
1) the range hood is started, the fan system, the oil smoke sensor and the temperature control sensor start to work, and the bottom air inlet device descends to enable the air inlet at the bottom to be exposed out of the shell and be located at a first position where the shell is completely opened so as to suck oil smoke;
2) the air inlet area of the air inlet of the side part is controlled according to the concentration of oil smoke in the air detected by the oil smoke sensor, and the air inlet area of the air inlet of the bottom part is controlled according to the air temperature in the shell detected by the temperature control sensor:
2.1) according to the oil smoke concentration in the air that oil smoke sensor detected come control to keep off the action of cigarette board to the air intake area of adjustment lateral part:
2.1.1) when the oil smoke sensor detects that the concentration of oil smoke in the air is lower than a first preset value of the concentration of the oil smoke, the smoke baffle plate is in a closed state;
2.1.2) when the oil smoke sensor detects that the oil smoke concentration in the air is between a first oil smoke concentration preset value and a second oil smoke concentration preset value, controlling a smoke baffle plate to be opened to a first position;
2.1.3) when the oil smoke sensor detects that the oil smoke concentration is greater than a second oil smoke concentration preset value, controlling the oil smoke baffle plate to further rotate until a second position of full opening is reached;
2.2) according to the oil smoke concentration in the air that temperature control sensor detected come the action of control bottom air inlet device to the air intake area of air intake of adjustment bottom:
2.2.1) when the temperature control sensor detects that the temperature of the air in the shell is between a first temperature preset value and a second temperature preset value, controlling the bottom air inlet device to move upwards to a second position, and reducing the air inlet area of the bottom air inlet to 40% -60% of that of the bottom air inlet device when the bottom air inlet device is at the first position;
2.2.2) when the temperature control sensor detects that the air temperature in the cigarette shell is higher than a second temperature preset value, controlling the bottom air inlet device to continue moving upwards until the bottom air inlet device completely enters the shell to seal the bottom air inlet.
Compared with the prior art, the invention has the advantages that: by arranging the two air inlets which can be opened and closed, the area of the air inlet is greatly increased under the condition that the double air inlets are completely opened under the working of the same fan, the resistance of the air inlet is reduced, the oil smoke absorption effect is improved, and the excellent air of a kitchen can be always kept; the fan system is arranged in the shell, so that the air inlet at the bottom can be used as a main air inlet; meanwhile, the temperature inside the shell is controlled through the temperature sensor, so that the working environment of the range hood is facilitated, and the service life of the range hood is prolonged; the air inlet device at the bottom is provided with the condensing plate, so that the defect that high-temperature oil smoke at the bottom directly enters the shell can be avoided, and the condensing plate can rapidly cool the oil smoke when the high-temperature oil smoke is sucked, so that the temperature in the shell can be reduced.
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 hidden left side plate of the range hood according to the embodiment of the present invention;
FIG. 3 is a schematic view of the hidden right side plate of the range hood according to the embodiment of the present invention;
FIG. 4 is a cross-sectional view of a range hood in accordance with an embodiment of the present invention;
FIG. 5 is an exploded view of the bottom air intake device of the range hood according to the embodiment of the present invention;
fig. 6 is a schematic view of a first operating state of the range hood according to the embodiment of the present invention;
fig. 7 is a schematic view of a second operating state of the range hood according to the embodiment of the present invention;
fig. 8 is a schematic view of a third operating state of the range hood according to the embodiment of the present invention;
fig. 9 is a control flowchart of the range hood according to the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Referring to fig. 1 to 5, a double air inlet range hood is a side-draft range hood, and includes a housing 1, a panel 2 disposed on the front side of the housing 1, and a fan system 3 disposed in the housing 1, where the fan system 3 may be a double air inlet centrifugal fan, and two air inlets of the fan system 3 face forward and backward respectively.
The housing 1 includes a top plate 11, a rear side plate 12, and side plates 13 respectively located at the left and right sides, and the top plate 11 is connected between the top ends of the three side plates to form the housing 1 with a front opening. The front end surfaces of the side plates 13 are inclined rearward and rearward from top to bottom, and the panel 2 is thereby obliquely disposed on the front side of the housing 1.
The panel 2 is provided with a first air inlet 21 extending in the left-right direction to form a lateral air inlet. The first air inlet 21 of the panel 2 is provided with a smoke baffle 41, the upper end of the smoke baffle 41 is hinged with the panel 2, and the inner side of the panel 2 is provided with a first driving mechanism 42. The smoke barrier 41 can open or close the first air inlet 21 under the driving of a first driving mechanism 42 (such as an electric push rod). After entering the housing 1 from the first air inlet 21, the oil smoke enters the fan system 3 from the air inlet on the front side of the fan system 3 and is discharged out of the range hood.
The structure is the same as that of the existing side-draft range hood, and the description is omitted.
An outlet 15 is formed between the bottom ends of the shell 1 and the panel 2, a bottom air inlet device 51 is arranged in the shell 1 and at a position corresponding to the outlet 15, and a second driving mechanism 52, a transmission mechanism 53 and a guide mechanism are further arranged in the shell 1 so as to drive the bottom air inlet device 51 to lift through the outlet 15.
The bottom air intake device 51 includes a frame 511 and a condensation plate 512, the frame 511 is a hollow rectangular parallelepiped, and the width in the front-back direction and the length in the left-right direction of the frame 511 are adapted to the outlet 5, so that the frame 511 can be integrally moved into and out of the outlet 15. A second air inlet 513 is formed at the front side of the frame 511 to form a bottom air inlet. The second air inlet 513 includes a plurality of elongated first through holes 514, and the plurality of first through holes 514 are arranged at intervals in the left-right direction. The top end of the frame 511 is open to form an air outlet 516, the condensing plate 512 is disposed at the air outlet 516, the oil smoke enters from the second air inlet 513 and then is discharged from the air outlet 516 into the casing 1, and enters from the air inlet at the rear side of the fan system 3 into the fan system 3 to exhaust the oil smoke. The condensation plate 512 is provided with a plurality of second through holes 515 arranged at intervals in the left-right direction, so that the oil smoke gas flow enters the frame 511 from the second air inlet 512 and then enters the housing 1 through the second through holes 515.
The second driving mechanism 52 is a motor in this embodiment, and the transmission mechanism 53 is a screw nut in this embodiment, and a screw driven by the motor to rotate extends in the longitudinal direction. The transmission mechanism 53 may be a rack and pinion, a worm gear, or the like. The guide mechanism comprises a connecting block 541, a first guide rail 542 and a second guide rail 543, and the connecting block 541 is used for being connected with the output of the transmission mechanism 53. The first guide rail 542 and the second guide rail 543 have two sets which are slidably fitted to each other, and are respectively disposed on the left and right sides of the fan system 3 in the housing 1. The first guide rails 542 extend in the longitudinal direction and are provided with guide grooves 544 extending in the longitudinal direction, the second guide rails 543 are disposed in the guide grooves 544, one of the second guide rails 543 is connected to the connection block 541, and each of the second guide rails 543 is further connected to the rear side of the frame 511. Therefore, the bottom air intake device 51 can be driven to move up and down in the longitudinal direction by the second driving mechanism 52, the transmission mechanism 53 and the guide mechanism.
In the casing 1, if a temperature control sensor 6 is further arranged on the rear side plate 12, a lampblack sensor 7 is arranged at the bottom of the front side of the panel 2, and the number of the lampblack sensors 7 can be two, and the two lampblack sensors are respectively arranged on the left side and the right side at intervals and correspond to two commonly used cooking ranges.
The first driving mechanism 42 can drive the smoke barrier 41 to rotate, so that the smoke barrier is opened at a first position and a second position, which correspond to different air inlet areas. The second driving mechanism 52 can drive the bottom air intake device 51 to ascend and descend, when the bottom air intake device 51 is located in the housing 1, the second air inlet 512 is in a closed state, and the bottom air intake device 51 moves downwards, so that when the second air inlet 512 is exposed out of the housing 1, smoking can be performed, the area of the second air inlet 512 exposed out of the housing 1 is controlled, and the air inlet area of the bottom air inlet can be adjusted.
The range hood disclosed by the invention is provided with the side part and the bottom part, and the fan system 3 is arranged in the shell 1, so that the bottom part of the air inlet can be used as a main air inlet area, the oil smoke absorption effect is improved, the problem that the smoke baffle plate of the side-draft range hood shields the sight of a user is solved, and the cooking experience of the user is improved; the arrangement of the condensation plate 512 on the bottom air intake device 51 can avoid the disadvantage that high-temperature oil smoke at the bottom directly enters the casing 1, and the condensation plate 512 can rapidly cool the oil smoke when the high-temperature oil smoke is sucked in, so as to reduce the temperature in the casing 1. And the air inlet on the side part is used as an auxiliary air inlet area.
The first driving mechanism 42, the second driving mechanism 52, the temperature control sensor 6 and the smoke sensor 7 are all connected to a main controller (not shown) of the range hood, and the main controller receives signals detected by the two sensors so as to control the operation of the first driving mechanism 42 and the second driving mechanism 52.
Referring to fig. 9, the control method of the range hood includes the following steps:
1) when the range hood is started, the fan system 3, the oil smoke sensor 7 and the temperature control sensor 6 start to work, the second driving mechanism 52 drives the bottom air inlet device 51 to descend, so that the second air inlet 513 on the bottom air inlet device 51 is exposed out of the shell 1 and is located at a fully opened first position to suck oil smoke, and referring to fig. 6, the second air inlet 513 is approximately located on the side surface of the cooking range;
2) the air inlet area of the air inlet of the side part is controlled according to the concentration of oil smoke in the air detected by the oil smoke sensor 7, and the air inlet area of the air inlet of the bottom part is controlled according to the air temperature in the shell 1 detected by the temperature control sensor 6:
2.1) according to the oil smoke concentration in the air that oil smoke sensor 7 detected comes control to keep off the action of cigarette board 41 to adjust the air intake area of the air intake of lateral part:
2.1.1) when the oil smoke sensor 7 detects that the oil smoke concentration in the air is lower than a first oil smoke concentration preset value, the first oil smoke concentration preset value is 10%, at the moment, because the range hood is still exchanging air, the air purification effect generated during the air exchange can counteract the harm caused by the escape of the oil smoke, and basically has no influence on the whole kitchen environment, so that the air inlet at the side part is not required to be opened;
2.1.2) when the oil smoke sensor 7 detects that the oil smoke concentration in the air is between a first oil smoke concentration preset value and a second oil smoke concentration preset value, the second oil smoke concentration preset value is 30%, the ventilation and purification speed of the range hood cannot offset the air pollution caused by oil smoke escape, at this time, the main controller controls the action of the oil smoke baffle plate 41 to open to a first position, the opening angle can be 35-55 degrees, and the oil smoke baffle plate is used for absorbing the escaped oil smoke, and the reference is made in fig. 7;
2.1.3) when the oil smoke sensor 7 detects that the oil smoke concentration is greater than a second oil smoke concentration preset value, the oil smoke escape amount in a unit area is increased, the smoke baffle plate 41 is controlled to further rotate until a second position of full opening is reached, the opening angle is 80-100 degrees, the oil smoke suction effect of the side part is improved, and the oil smoke is prevented from escaping, which is shown in fig. 8;
2.2) according to the oil salt concentration in the air that temperature control sensor 6 detected come the action of control bottom hot blast blowpipe apparatus 51 to the air intake air area of adjustment bottom:
2.2.1) when the temperature control sensor 6 detects that the air temperature in the housing 1 is between a first temperature preset value and a second temperature preset value, the first temperature preset value may be 70 ℃ for example, and the second temperature preset value may be 100 ℃ for example, because the parts in the range hood (such as a motor) work at a high temperature, the service life of the parts is affected, at this time, the main controller controls the second driving mechanism 52 to drive the bottom air inlet device 51 to move upwards, the area of the second air inlet is reduced by reducing the area of the second air inlet 513 exposed out of the housing 1 to about 40% -60% of the area of the whole bottom air inlet, and at this time, the bottom air inlet device 51 is at a second position where the bottom air inlet is partially opened, so that the smoke inlet amount of the bottom high-temperature oil smoke is reduced, and the temperature;
2.2.2) when the temperature control sensor 6 detects that the air temperature in the smoke housing 1 is greater than the second temperature preset value, the temperature control sensor can seriously damage the internal components (such as a motor, plastic parts and other components) of the range hood, at the moment, the main controller controls the second driving mechanism 52 to drive the bottom air inlet device 51 to continuously move upwards until the bottom air inlet device completely enters the housing 1, and under the condition, the side air inlet is completely used for smoking.
According to the invention, by arranging the two air inlets which can be opened and closed, the area of the air inlet is greatly increased under the condition that the double air inlets are completely opened under the working of the same fan, the resistance of the air inlet is reduced, the oil smoke absorption effect is improved, and the excellent air in a kitchen can be always kept. Meanwhile, the temperature inside the shell is controlled through the temperature sensor, so that the working environment of the range hood is facilitated, and the service life of the range hood is prolonged.
Claims (9)
1. A double-air-inlet range hood comprises a shell (1), a panel (2) arranged on the front side of the shell (1) and a fan system (3) arranged in the shell (1) so as to form a side-suction range hood, wherein a first air inlet (21) serving as an air inlet on the side part is formed in the panel (2), and a smoke baffle (41) capable of opening or closing the air inlet on the side part is arranged on the panel (2); the method is characterized in that: the air conditioner is characterized by further comprising a bottom air inlet device (51), wherein a second air inlet (513) serving as an air inlet at the bottom is formed in the front side of the bottom air inlet device (51), the air inlet at the bottom serves as a main air inlet area, the air inlet at the side part serves as an auxiliary air inlet area, an outlet (15) matched with the bottom air inlet device (51) is formed between the bottom ends of the shell (1) and the panel (2), and the bottom air inlet device (51) can ascend from the outlet (15) to enter the shell (1) to close the air inlet at the bottom or descend to expose out of the shell (1) to open the air inlet at the bottom.
2. The dual intake range hood of claim 1, wherein: the bottom air inlet device (51) comprises a hollow frame body (511), a second air inlet (513) is formed in the front side of the frame body (511), and the top end of the frame body (511) is open to form an air outlet (516).
3. The dual intake range hood of claim 2, wherein: and a condensing plate (512) is arranged at the air outlet (516).
4. The double-air-inlet range hood according to any one of claims 1 to 3, wherein: the inner side of the panel (2) is provided with a first driving mechanism (42) for driving the smoke baffle plate (41) to rotate.
5. The dual intake range hood of claim 4, wherein: and a second driving mechanism (52) for driving the bottom air inlet device (5) to lift is arranged in the shell (1).
6. The dual intake range hood of claim 5, wherein: the second driving mechanism (52) is a motor, and further comprises a transmission mechanism (53) for converting the output of the motor into linear motion, wherein the transmission mechanism (53) is used for being connected to the bottom air inlet device (51).
7. The dual intake range hood of claim 6, wherein: still be provided with guiding mechanism in casing (1), guiding mechanism includes connecting block (541) of being connected with the output of drive mechanism (53), first guide rail (542) and second guide rail (543) that sliding fit each other and extend on vertical, first guide rail (542) are connected with the rear side in casing (1), second guide rail (543) are connected with the rear side of connecting block (541) and bottom hot blast blowpipe apparatus (51).
8. The dual intake range hood of claim 5, wherein: the front side of the panel (2) is provided with a lampblack sensor (7) used for controlling the first driving mechanism (42), and the shell (1) is internally provided with a temperature control sensor (6) used for controlling the second driving mechanism (52).
9. A control method of a range hood as claimed in claim 8, wherein: the method comprises the following steps:
1) the range hood is started, the fan system (3), the oil smoke sensor (7) and the temperature control sensor (6) start to work, and the bottom air inlet device (51) descends to enable the air inlet at the bottom to be exposed out of the shell (1) and be located at a first position where the shell is completely opened so as to suck oil smoke;
2) the air inlet area of the air inlet of the side part is controlled according to the concentration of oil smoke in the air detected by the oil smoke sensor (7), and the air inlet area of the air inlet of the bottom part is controlled according to the air temperature in the shell (1) detected by the temperature control sensor (6):
2.1) according to the oil smoke concentration in the air that oil smoke sensor (7) detected come control keep off the action of cigarette board (41), thereby adjust the air intake area of the air intake of lateral part:
2.1.1) when the oil smoke sensor (7) detects that the concentration of oil smoke in the air is lower than a first preset value of the concentration of the oil smoke, the smoke baffle plate (41) is in a closed state;
2.1.2) when the oil smoke sensor (7) detects that the concentration of oil smoke in the air is between a first oil smoke concentration preset value and a second oil smoke concentration preset value, controlling a smoke baffle plate (41) to be opened to a first position;
2.1.3) when the oil smoke sensor (7) detects that the oil smoke concentration is greater than a second oil smoke concentration preset value, controlling the oil smoke baffle plate (41) to further rotate until reaching a second position of full opening;
2.2) according to the oil smoke concentration in the air that temperature control sensor (6) detected come the action of control bottom hot blast blowpipe apparatus (51), thereby adjust the air intake area of bottom:
2.2.1) when the temperature control sensor (6) detects that the air temperature in the shell (1) is between a first temperature preset value and a second temperature preset value, controlling the bottom air inlet device (51) to move upwards to a second position, and reducing the air inlet area of the bottom air inlet to 40% -60% of that of the bottom air inlet device (51) when the bottom air inlet device is at the first position;
2.2.2) when the temperature control sensor (6) detects that the air temperature in the smoke shell (1) is greater than a second preset temperature value, controlling the bottom air inlet device (51) to continue moving upwards until the air completely enters the shell (1) to seal the air inlet at the bottom.
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| CN201910464475.9A CN110260374B (en) | 2019-05-30 | 2019-05-30 | Double-air-inlet range hood and control method thereof |
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| CN201910464475.9A CN110260374B (en) | 2019-05-30 | 2019-05-30 | Double-air-inlet range hood and control method thereof |
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| CN110260374B true CN110260374B (en) | 2020-10-27 |
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| CN111351083A (en) * | 2020-03-10 | 2020-06-30 | 海信(广东)厨卫系统有限公司 | Range hood and control method and device thereof |
| CN111306593B (en) * | 2020-03-16 | 2022-03-18 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN114110675B (en) * | 2020-08-27 | 2023-09-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Shell subassembly and cigarette machine |
| CN112963873B (en) * | 2021-01-07 | 2022-11-29 | 宁波方太厨具有限公司 | Near-suction range hood and control method thereof |
| CN112762490B (en) * | 2021-01-22 | 2023-08-22 | 合肥瑞纳通软件技术开发有限公司 | Range hood with double air inlets and air quantity control method thereof |
| CN113357680B (en) * | 2021-06-11 | 2023-04-14 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN113685871A (en) * | 2021-09-03 | 2021-11-23 | 味呱哈智能厨具(浙江)有限公司 | Control method and device of oil fume suction equipment and oil fume suction system |
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| CN202813531U (en) * | 2012-10-03 | 2013-03-20 | 张景林 | Full-suction type kitchen ventilator |
| TW201818023A (en) * | 2016-11-11 | 2018-05-16 | 中山七靈電器科技有限公司 | Improved oblique-arm range hood structure capable of stabilizing gas flow, suppressing whistle sound and abnormal sound caused by gas turbulence, and thus indirectly increasing suction volume and suction efficiency |
| CN206361765U (en) * | 2016-12-09 | 2017-07-28 | 成都前锋电子有限责任公司 | A kind of retractable L-type range hood of bottom air inlet mouthful |
| CN208547028U (en) * | 2018-06-25 | 2019-02-26 | 广东万和电气有限公司 | A kind of kitchen ventilator with elevating |
| CN208901471U (en) * | 2018-08-10 | 2019-05-24 | 广东格兰仕集团有限公司 | The kitchen ventilator that can be entered the wind simultaneously up and down |
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2019
- 2019-05-30 CN CN201910464475.9A patent/CN110260374B/en active Active
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