CN109424998B - Range hood capable of automatically distributing negative pressure area and control method - Google Patents
Range hood capable of automatically distributing negative pressure area and control method Download PDFInfo
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- CN109424998B CN109424998B CN201710721723.4A CN201710721723A CN109424998B CN 109424998 B CN109424998 B CN 109424998B CN 201710721723 A CN201710721723 A CN 201710721723A CN 109424998 B CN109424998 B CN 109424998B
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- axial flow
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- controller
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 39
- 239000003517 fume Substances 0.000 claims abstract description 34
- 230000005389 magnetism Effects 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract description 7
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a range hood capable of automatically distributing a negative pressure area and a control method thereof, comprising a case and a fume collecting hood connected below the case, wherein a fume collecting cavity is arranged between the case and the fume collecting hood; the oil guide plate connected between the left side plate and the right side plate of the fume collecting hood is obliquely arranged; the oil guide plate is provided with a first oil smoke suction hole and a second oil smoke suction hole at intervals, and the first oil smoke suction hole and the second oil smoke suction hole are respectively provided with a first axial flow fan and a second axial flow fan; the first axial flow fan and the second axial flow fan are electrically connected with the controller; the method is characterized in that: the first axial flow fan and the second axial flow fan are respectively provided with a first rotating speed sensor and a second rotating speed sensor, and the two rotating speed sensors are electrically connected with the controller; the oil guide plate is connected with a partition plate, and the partition plate divides the smoke collecting cavity into a front smoke collecting cavity and a rear smoke collecting cavity; the inner cavity of the fume collecting hood is communicated with the rear fume collecting cavity; the fume collecting hood is also provided with a limiting component used for limiting the rotation of the first axial flow fan and the second axial flow fan respectively.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a range hood capable of automatically distributing a negative pressure area and a control method thereof.
Background
CN201610905111.6 discloses a range hood, comprising a case and a fume collecting hood connected below the case, wherein a centrifugal fan is arranged in the case, and an air inlet communicated with the inner cavity of the case is arranged on the fume collecting hood; the centrifugal fan is characterized by being a double-suction centrifugal fan; the smoke collecting cover comprises a first cavity and a second cavity which are mutually independent, the air inlet is communicated with the first cavity, and the first cavity is communicated with the front air inlet of the centrifugal fan; the second cavity extends downwards and is provided with an inclined plane which inclines forwards from bottom to top, a left axial flow fan and a right axial flow fan are arranged on the inclined plane at intervals, a partition plate is arranged in the second cavity to divide the second cavity into a left channel corresponding to the left axial flow fan and a right channel corresponding to the right axial flow fan, and the left channel and the second air flow channel are both communicated with a rear air inlet of the centrifugal fan. And be equipped with temperature-detecting device, judge whether there is cooking utensils work in left and right sides, when one side work, open the axial fan that sets up on the range hood of corresponding position, improve this side flow, and then improve the oil smoke effect. This application can effectively utilize lampblack absorber flow at cooking utensils unilateral during operation, improves the oil absorption effect, and the less external air current disturbance leads to run the cigarette problem, but when an axial fan during operation, another one also can rotate along with the air current, and then occupies a part of lampblack absorber flow, has reduced the due effect in single side.
Disclosure of Invention
The invention aims to solve the technical problem of providing the range hood capable of starting the axial flow fan according to the need so as to match the resistance of the smoke exhaust channel and effectively avoiding smoke leakage and automatically distributing the negative pressure area.
The invention aims to provide a control method of the range hood capable of starting the axial flow fan according to the current state of the art so as to match the resistance of the smoke discharging channel and effectively avoid smoke leakage.
The technical scheme adopted for solving the technical problems is as follows: the range hood capable of automatically distributing the negative pressure area comprises a case and a fume collecting hood connected below the case, wherein a fume collecting cavity is arranged between the case and the fume collecting hood; the oil guide plate connected between the left side plate and the right side plate of the fume collecting hood is obliquely arranged; the oil guide plate is provided with a first oil smoke suction hole and a second oil smoke suction hole at intervals, and the first oil smoke suction hole and the second oil smoke suction hole are respectively provided with a first axial flow fan and a second axial flow fan; the first axial flow fan and the second axial flow fan are electrically connected with the controller;
the method is characterized in that:
a first rotating speed sensor and a second rotating speed sensor are respectively arranged on the first axial flow fan and the second axial flow fan, and the two rotating speed sensors are electrically connected with the controller;
the oil guide plate is connected with a partition plate, and the partition plate divides the smoke collecting cavity into a front smoke collecting cavity and a rear smoke collecting cavity;
the inner cavity of the fume collecting hood is communicated with the rear fume collecting cavity; and the smoke collecting cover is also provided with limiting assemblies which are respectively used for limiting the rotation of the first axial flow fan and the second axial flow fan.
The rotational speed sensor is preferably a hall sensor, although other rotational speed detection means may be used.
In order to control the starting of the two axial flow fans conveniently, a first temperature sensor corresponding to the first axial flow fan and a second temperature sensor corresponding to the second axial flow fan can be arranged on the surface of the oil guide plate.
The limiting assembly can comprise a driving motor, a gear, a limiting plate and a guide plate; the output shaft of the driving motor is in driving connection with the gear; one end edge of the limiting plate is provided with meshing teeth meshed with the gear, and the limiting plate is connected with a limiting shaft; the guide plate is provided with a guide hole, the limiting shaft is accommodated in the guide hole, the other end of the limiting shaft is connected with a baffle plate, and the baffle plate can be abutted against impeller center seats of the first axial flow fan and the second axial flow fan under the drive of the driving motor;
the driving motor is electrically connected with the controller.
The control method of the range hood capable of automatically distributing the negative pressure area is characterized by comprising the following steps of:
initializing;
the first rotating speed sensor, the second rotating speed sensor, the first temperature sensor, the second temperature sensor, the first axial flow fan, the second axial flow fan and the matching relation between the two limiting components are arranged in the controller; setting the delay starting time a of the first axial flow fan and the second axial flow fan relative to the centrifugal fan of the range hood;
the first temperature sensor transmits temperature data monitored in real time to the controller, the controller performs operation, and the starting of the first axial flow fan is controlled according to an operation result;
the second temperature sensor transmits temperature data monitored in real time to the controller, the controller performs operation, and the second axial fan is controlled to be started according to an operation result;
after a centrifugal fan of the range hood is started, a first rotational speed sensor transmits the passive rotational speed of the first axial flow fan monitored in real time in time a to a controller, the controller performs operation, and the first axial flow fan is started at a matched rotational speed after time a according to an operation result;
after the centrifugal fan of the range hood is started, the second rotation speed sensor transmits the passive rotation speed of the second axial flow fan monitored in real time in the time a to the controller, the controller performs operation, and the second axial flow fan is started at the matched rotation speed after the time a according to the operation result;
if the first axial flow fan is started, the driving motor of the limiting assembly corresponding to the first axial flow fan is controlled to work at the same time, so that the baffle is separated from the interference to the impeller center seat of the first axial flow fan; if the first axial flow fan is not started, the driving motor of the limiting assembly is controlled to work at the same time, so that the baffle is abutted against the impeller center seat of the first axial flow fan;
if the second axial flow fan is started, the driving motor of the second limiting assembly corresponding to the second axial flow fan is controlled to work at the same time, so that the baffle plate of the limiting assembly is separated from the interference to the impeller center seat of the second axial flow fan; if the second axial fan is not started, the driving motor of the limiting assembly is controlled to work at the same time, so that the baffle is abutted against the impeller center seat of the second axial fan.
Or, the limiting component can further comprise an electromagnet, the fan blades of the first axial flow fan and the second axial flow fan are connected to a fan blade shell, and the fan blade shell is an iron shell; the electromagnet faces the fan blade shell;
the electromagnet electric signal is connected with the controller.
The control method of the range hood capable of automatically distributing the negative pressure area is characterized by comprising the following steps of:
initializing;
the first rotating speed sensor, the second rotating speed sensor, the first temperature sensor, the second temperature sensor, the first axial flow fan, the second axial flow fan and the matching relation between the two limiting components are arranged in the controller; setting the delay starting time a of the first axial flow fan and the second axial flow fan relative to the centrifugal fan of the range hood;
the first temperature sensor transmits temperature data monitored in real time to the controller, the controller performs operation, and the starting of the first axial flow fan is controlled according to an operation result;
the second temperature sensor transmits temperature data monitored in real time to the controller, the controller performs operation, and the second axial fan is controlled to be started according to an operation result;
after a centrifugal fan of the range hood is started, a first rotational speed sensor transmits the passive rotational speed of the first axial flow fan monitored in real time in time a to a controller, the controller performs operation, and the first axial flow fan is started at a matched rotational speed after time a according to an operation result;
after the centrifugal fan of the range hood is started, the second rotation speed sensor transmits the passive rotation speed of the second axial flow fan monitored in real time in the time a to the controller, the controller performs operation, and the second axial flow fan is started at the matched rotation speed after the time a according to the operation result;
if the first axial flow fan is not started, the electromagnet in the limit component corresponding to the first axial flow fan is simultaneously supplied with power, magnetism is generated after the electromagnet is electrified and is adsorbed on the fan blade shell, the first axial flow fan is hooped, and the first axial flow fan cannot rotate; if the first axial flow fan is started, power is not supplied to the electromagnet, and the electromagnet is far away from the fan blade shell;
if the second axial fan is not started, the electromagnet in the limiting assembly corresponding to the second axial fan is simultaneously powered, and magnetism is generated after the electromagnet is powered, the electromagnet is adsorbed on the fan blade shell, the second axial fan is hooped, and the second axial fan cannot rotate; if the second axial fan is started, power is not supplied to the electromagnet, and the electromagnet is far away from the fan blade shell.
Compared with the prior art, the invention has the advantages that the upper air inlet and the lower air inlet of the range hood are designed, the air inlets of the lower part are symmetrically distributed with a plurality of axial flow fans, the axial flow fans share one channel, when the range hood works on one side, the axial flow fans at the corresponding positions are started, the axial flow fans at the other side are not started, and because of the common channel, the flow of the inlet at the other side is backlogged by the other side, so that the flow is more concentrated at the side with the oil smoke, and the oil smoke absorbing capacity of the range hood is improved; and the locking device is designed to independently control the working state of the axial flow fan, when the cooker on the corresponding side of the axial flow fan does not work, the axial flow fan is mechanically locked, the flow rate of the side of the axial flow fan is further reduced, the inlet flow rate of the other axial flow fan is further improved, and the fume suction effect of the range hood is further improved.
The arrangement of the rotating speed sensor and the delay start of the axial flow fan relative to the centrifugal fan enable the rotating speed of the axial flow fan to be well matched with the resistance of the smoke discharging channel, and the problems of unsmooth smoke discharging and even smoke returning caused by unmatched suction force of the axial flow fan and flue resistance when the smoke discharging resistance is overlarge are avoided.
Drawings
FIG. 1 is a perspective view showing an assembling structure of embodiment 1 of the present invention;
fig. 2 is a schematic perspective view of embodiment 1 of the present invention with a chassis removed;
fig. 3 is a schematic perspective view of embodiment 1 of the present invention with the chassis and the oil guide plate removed;
FIG. 4 is a perspective view of the assembly structure of axial flow fan and spacing assembly in embodiment 1 of the present invention;
FIG. 5 is an exploded view of FIG. 2 with the right side panel removed;
fig. 6 is a perspective view of the left side plate of embodiment 2 of the present invention after being disassembled;
fig. 7 is a perspective view showing an assembly structure of a axial flow fan and a limiting device in embodiment 2 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 5, the range hood for automatically distributing a negative pressure region includes:
a casing 1 in which a centrifugal fan (not shown in the drawings) is installed;
the fume collecting hood 2 is connected below the case 1, and a fume collecting cavity is arranged between the case 1 and the fume collecting hood 2. An oil guide plate 24 which is obliquely arranged is connected between the left side plate 15 and the right side plate 15 of the fume collecting hood 2, the upper end edge of the oil guide plate 24 is connected with a baffle plate 23, and the baffle plate 23 divides the fume collecting cavity into a front fume collecting cavity 11 and a rear fume collecting cavity 12. The inner cavity of the fume collecting hood 2 is communicated with the rear fume collecting cavity 12.
The oil guide plate 24 is provided with a first oil smoke suction hole 21 and a second oil smoke suction hole 22 at intervals, and the first oil smoke suction hole 21 and the second oil smoke suction hole 22 are respectively provided with a first axial flow fan 31 and a second axial flow fan 32; in the operating state, the first axial flow fan 31 and the second axial flow fan 32 respectively face two stoves (not shown in the drawings).
The surface of the oil guide plate 24 is provided with a first temperature sensor 51 corresponding to the first axial flow fan 31 and a second temperature sensor 52 corresponding to the second axial flow fan 32; the first axial flow fan 31, the second axial flow fan 32, the first temperature sensor 51 and the second temperature sensor 52 are all electrically connected to a controller (not shown).
The first axial flow fan 31 and the second axial flow fan 32 are respectively provided with a first rotating speed sensor 33 and a second rotating speed sensor 34, and the two rotating speed sensors are electrically connected with a controller;
the oil guide plate 24 is connected with a partition plate 23, and the partition plate 23 divides the smoke collecting cavity into a front smoke collecting cavity 11 and a rear smoke collecting cavity 12; the inner cavity of the fume collecting hood 2 is communicated with the rear fume collecting cavity 12.
The limiting assemblies 4 are two and are arranged in the fume collecting hood 2 and are used for limiting the rotation of the first axial flow fan 31 and the second axial flow fan 32 respectively. The two spacing components 4 are identical in structure and both include:
a driving motor 41, a gear 42, a limiting plate 43 and a guide plate 44; wherein the output shaft of the drive motor 41 drives the connecting gear 42; one end edge of the limiting plate 43 is provided with meshing teeth meshed with the gear 42, and the limiting plate 43 is connected with a limiting shaft 45; the guide plate 44 is provided with a guide hole 46, the limiting shaft 45 is accommodated in the guide hole 46, the other end of the limiting shaft 45 is connected with a baffle 47, and the baffle 47 can be abutted against impeller center seats of the first axial flow fan 31 and the second axial flow fan 32 under the driving of the driving motor 41; the motor output shaft of the axial flow fan is in driving connection with the impeller center seat; the driving motor 4 is electrically connected with the controller.
The control method of the range hood capable of automatically distributing the negative pressure area comprises the following steps:
initializing;
the first rotating speed sensor 33, the second rotating speed sensor 34, the first temperature sensor (51), the second temperature sensor 52, the first axial flow fan 31, the second axial flow fan 32 and the matching relation between the two limiting assemblies 4 are arranged in the controller; the time a for delaying the start of the first axial flow fan 31 and the second axial flow fan 32 relative to the centrifugal fan of the range hood is set;
the first temperature sensor 51 transmits the temperature data monitored in real time to the controller, the controller performs operation, and the starting of the first axial flow fan 31 is controlled according to the operation result;
the second temperature sensor 52 transmits the temperature data monitored in real time to the controller, the controller performs operation, and the second axial fan 32 is controlled to be started according to the operation result;
after the centrifugal fan of the range hood is started, the first rotation speed sensor 33 transmits the passive rotation speed of the first axial flow fan 31 monitored in real time in the time a to the controller, the controller performs operation, and the first axial flow fan 31 is started at the matched rotation speed after the time a according to the operation result;
after the centrifugal fan of the range hood is started, the second rotation speed sensor 34 transmits the passive rotation speed of the second axial fan 32 monitored in real time in the time a to the controller, the controller performs operation, and the second axial fan 32 is started at the matched rotation speed after the time a according to the operation result;
the passive rotating speed is that the axial flow fan sucks external airflow after being started by the centrifugal fan, and the external airflow pushes blades of the axial flow fan to rotate to generate rotation speed.
If the first axial flow fan 31 is started, the driving motor 41 of the limiting assembly 4 corresponding to the first axial flow fan 31 is controlled to work at the same time, so that the baffle 47 is separated from the interference to the impeller center seat of the first axial flow fan 31; if the first axial flow fan 31 is not started, the driving motor 41 of the limiting assembly 4 is controlled to work at the same time, so that the baffle 47 is abutted against the impeller center seat of the first axial flow fan 31;
if the second axial fan 32 is started, the driving motor 41 of the second limiting assembly 4 corresponding to the second axial fan 32 is controlled to work at the same time, so that the baffle 47 of the limiting assembly is separated from the interference to the impeller center seat of the second axial fan 32; if the second axial fan 31 is not started, the driving motor 41 of the limiting assembly 4 is controlled to work at the same time, so that the baffle 47 is abutted against the impeller center seat of the second axial fan 32.
Example 2
As shown in fig. 6 and 7, the limiting component in this embodiment is an electromagnet 48.
The blades of the first axial flow fan 31 and the second axial flow fan 32 are connected to respective blade shells 33, and the blade shells 33 are iron shells.
The electromagnet 48 is arranged opposite to the fan blade shell 33 and is electrically connected with a controller, and the controller controls whether the electromagnet is electrified or not.
The remainder was the same as in example 1.
The control method of the range hood capable of automatically distributing the negative pressure area in the embodiment is as follows:
initializing;
the first rotating speed sensor 33, the second rotating speed sensor 34, the first temperature sensor 51, the second temperature sensor 52, the first axial flow fan 31, the second axial flow fan 32 and the matching relation between the two limiting assemblies 4 are arranged in the controller; the time a for delaying the start of the first axial flow fan 31 and the second axial flow fan 32 relative to the centrifugal fan of the range hood is set;
the first temperature sensor 51 transmits the temperature data monitored in real time to the controller, the controller performs operation, and the starting of the first axial flow fan 31 is controlled according to the operation result;
the second temperature sensor 52 transmits the temperature data monitored in real time to the controller, the controller performs operation, and the second axial fan 32 is controlled to be started according to the operation result;
after the centrifugal fan of the range hood is started, the first rotation speed sensor 33 transmits the passive rotation speed of the first axial flow fan 31 monitored in real time in the time a to the controller, the controller performs operation, and the first axial flow fan 31 is started at the matched rotation speed after the time a according to the operation result;
after the centrifugal fan of the range hood is started, the second rotation speed sensor 34 transmits the passive rotation speed of the second axial fan 32 monitored in real time in the time a to the controller, the controller performs operation, and the second axial fan 32 is started at the matched rotation speed after the time a according to the operation result;
if the first axial flow fan 31 is not started, simultaneously supplying power to the electromagnet 48 in the limit component corresponding to the first axial flow fan 31, generating magnetism after the electromagnet 48 is electrified, adsorbing the magnetism to the fan blade shell, and hooping the first axial flow fan 31, wherein the first axial flow fan 31 cannot rotate; if the first axial flow fan 31 is started, no power is supplied to the electromagnet 48, and the electromagnet 48 is far away from the fan blade shell;
if the second axial fan 32 is not started, simultaneously, the electromagnet 48 in the limiting component corresponding to the second axial fan 32 is powered, the electromagnet 48 generates magnetism after being powered, and the magnetism is adsorbed on the fan blade shell to pinch the second axial fan 32, so that the second axial fan 32 cannot rotate; if the second axial fan 32 is activated, no power is supplied to the electromagnet 48, and the electromagnet 48 is remote from the blade shell.
Claims (6)
1. A range hood capable of automatically distributing a negative pressure area comprises a case (1) internally provided with a centrifugal fan and a fume collecting hood (2) connected below the case (1), wherein a fume collecting cavity is formed between the case (1) and the fume collecting hood (2); the oil guide plate (24) connected between the left side plate (15) and the right side plate (15) of the fume collecting hood (2) is obliquely arranged; a first oil smoke suction hole (21) and a second oil smoke suction hole (22) are formed in the oil guide plate (24) at intervals, and a first axial flow fan (31) and a second axial flow fan (32) are respectively arranged on the first oil smoke suction hole (21) and the second oil smoke suction hole (22); the first axial flow fan (31) and the second axial flow fan (32) are electrically connected with the controller;
the method is characterized in that:
a first rotating speed sensor (33) and a second rotating speed sensor (34) are respectively arranged on the first axial flow fan (31) and the second axial flow fan (32), and the two rotating speed sensors are electrically connected with the controller;
the inner cavity of the fume collecting hood (2) is communicated with the fume collecting cavity; the smoke collecting cover (2) is also provided with a limiting component (4) which is respectively used for limiting the rotation of the first axial flow fan (31) and the second axial flow fan (32);
the limiting assembly (4) comprises a driving motor (41), a gear (42), a limiting plate (43) and a guide plate (44); an output shaft of the driving motor (41) is in driving connection with the gear (42); one end edge of the limiting plate (43) is provided with meshing teeth meshed with the gear (42), and the limiting plate (43) is connected with a limiting shaft (45); the guide plate (44) is provided with a guide hole (46), the limiting shaft (45) is accommodated in the guide hole (46), the other end of the limiting shaft (45) is connected with a baffle plate (47), and the baffle plate (47) can be abutted against impeller center seats of the first axial flow fan (31) and the second axial flow fan (32) under the driving of the driving motor (41);
the driving motor (41) is electrically connected with the controller.
2. The range hood with automatic negative pressure area distribution according to claim 1, characterized in that the rotation speed sensor (3) is a hall sensor.
3. The range hood automatically distributing a negative pressure zone according to claim 1 or 2, characterized in that a first temperature sensor (51) corresponding to the first axial flow fan (31) and a second temperature sensor (52) corresponding to the second axial flow fan (32) are provided on the surface of the oil guide plate (24).
4. A range hood with automatic negative pressure area distribution according to claim 3, characterized in that the limit component (4) comprises an electromagnet (48), the blades of the first axial flow fan (31) and the second axial flow fan (32) are connected to a blade shell (33), and the blade shell (33) is an iron shell; the electromagnet (48) faces the fan blade shell (33);
the electromagnet (48) is electrically connected with the controller;
the electromagnet is adsorbed on the fan blade shell after being electrified, so that the axial flow fan is positioned and prevented from rotating.
5. The control method of a range hood for automatically distributing a negative pressure area according to claim 3, wherein:
initializing;
the first rotating speed sensor (33), the second rotating speed sensor (34), the first temperature sensor (51), the second temperature sensor (52), the first axial flow fan (31), the second axial flow fan (32) and the matching relation between the two limiting components (4) are arranged in the controller; setting the delay starting time a of the first axial flow fan (31) and the second axial flow fan (32) relative to the centrifugal fan of the range hood;
the first temperature sensor (51) transmits temperature data monitored in real time to the controller, the controller performs operation, and the starting of the first axial flow fan (31) is controlled according to an operation result;
the second temperature sensor (52) transmits temperature data monitored in real time into the controller, the controller performs operation, and the second axial fan (32) is controlled to be started according to the operation result;
after the centrifugal fan of the range hood is started, a first rotational speed sensor (33) transmits the passive rotational speed of a first axial flow fan (31) monitored in real time in time a to a controller, the controller performs operation, and the first axial flow fan (31) is started at a matched rotational speed after time a according to the operation result;
after the centrifugal fan of the range hood is started, the second rotating speed sensor (34) transmits the passive rotating speed of the second axial fan (32) monitored in real time in the time a to the controller, the controller performs operation, and the second axial fan (32) is started at the matched rotating speed after the time a according to the operation result;
if the first axial flow fan (31) is started, the driving motor (41) of the limiting assembly (4) corresponding to the first axial flow fan (31) is controlled to work at the same time, so that the baffle (47) is separated from the interference to the impeller center seat of the first axial flow fan (31); if the first axial flow fan (31) is not started, the driving motor (41) of the limiting assembly (4) is controlled to work at the same time, so that the baffle (47) is abutted against the impeller center seat of the first axial flow fan (31);
if the second axial fan (32) is started, simultaneously controlling a driving motor (41) of a limiting assembly (4) corresponding to the second axial fan (32) to work, so that a baffle (47) of the limiting assembly is separated from the interference to an impeller center seat of the second axial fan (32); if the second axial fan (32) is not started, the driving motor (41) of the limiting assembly (4) is controlled to work at the same time, so that the baffle plate (47) is abutted against the impeller center seat of the second axial fan (32).
6. The control method of the range hood capable of automatically distributing the negative pressure area according to claim 4, wherein:
initializing;
the first rotating speed sensor (33), the second rotating speed sensor (34), the first temperature sensor (51), the second temperature sensor (52), the first axial flow fan (31), the second axial flow fan (32) and the matching relation between the two limiting components (4) are arranged in the controller; setting the delay starting time a of the first axial flow fan (31) and the second axial flow fan (32) relative to the centrifugal fan of the range hood;
the first temperature sensor (51) transmits temperature data monitored in real time to the controller, the controller performs operation, and the starting of the first axial flow fan (31) is controlled according to an operation result;
the second temperature sensor (52) transmits temperature data monitored in real time into the controller, the controller performs operation, and the second axial fan (32) is controlled to be started according to the operation result;
after the centrifugal fan of the range hood is started, a first rotational speed sensor (33) transmits the passive rotational speed of a first axial flow fan (31) monitored in real time in time a to a controller, the controller performs operation, and the first axial flow fan (31) is started at a matched rotational speed after time a according to the operation result;
after the centrifugal fan of the range hood is started, the second rotating speed sensor (34) transmits the passive rotating speed of the second axial fan (32) monitored in real time in the time a to the controller, the controller performs operation, and the second axial fan (32) is started at the matched rotating speed after the time a according to the operation result;
if the first axial flow fan (31) is not started, power is supplied to the electromagnet (48) in the limit component corresponding to the first axial flow fan (31) at the same time, magnetism is generated after the electromagnet (48) is powered on and is adsorbed on the fan blade shell, the first axial flow fan (31) is hooped, and the first axial flow fan (31) cannot rotate; if the first axial flow fan (31) is started, no power is supplied to the electromagnet (48), and the electromagnet (48) is far away from the fan blade shell;
if the second axial fan (32) is not started, simultaneously supplying power to the electromagnet (48) in the limiting assembly corresponding to the second axial fan (32), generating magnetism after the electromagnet (48) is powered, adsorbing the magnetism to the fan blade shell, and hooping the second axial fan (32), wherein the second axial fan (32) cannot rotate; if the second axial fan (32) is started, the electromagnet (48) is not powered, and the electromagnet (48) is far away from the fan blade shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710721723.4A CN109424998B (en) | 2017-08-22 | 2017-08-22 | Range hood capable of automatically distributing negative pressure area and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710721723.4A CN109424998B (en) | 2017-08-22 | 2017-08-22 | Range hood capable of automatically distributing negative pressure area and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109424998A CN109424998A (en) | 2019-03-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110186083A (en) * | 2019-05-09 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of energy-saving control method of fume purifier of fume and the device |
| CN110594821B (en) * | 2019-09-19 | 2021-02-26 | 宁波方太厨具有限公司 | Range hood and control method thereof |
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| US3719137A (en) * | 1971-12-01 | 1973-03-06 | Gen Motors Corp | Range ventilating system |
| CN101900364A (en) * | 2010-07-26 | 2010-12-01 | 江苏光芒厨卫太阳能科技有限公司 | DC frequency conversion range hood |
| CA2695624A1 (en) * | 2010-03-05 | 2011-09-05 | Jean-Pierre Boudreault | Air flow variation system for a range hood |
| CN102589025A (en) * | 2012-02-17 | 2012-07-18 | 宁波方太厨具有限公司 | Fan speed adaptive regulation device of range hood and control method thereof |
| CN202792178U (en) * | 2012-09-29 | 2013-03-13 | 鲁长春 | Range hood with wind-proof function and foldable lifting air supply device |
| CN103527499A (en) * | 2013-11-08 | 2014-01-22 | 广西科技大学鹿山学院 | Electric fan with two blades |
| CN106352383A (en) * | 2016-10-17 | 2017-01-25 | 宁波方太厨具有限公司 | Range hood |
| CN207162671U (en) * | 2017-08-22 | 2018-03-30 | 宁波方太厨具有限公司 | A kind of range hood of automatic distribution negative pressuren zone |
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| US3719137A (en) * | 1971-12-01 | 1973-03-06 | Gen Motors Corp | Range ventilating system |
| CA2695624A1 (en) * | 2010-03-05 | 2011-09-05 | Jean-Pierre Boudreault | Air flow variation system for a range hood |
| CN101900364A (en) * | 2010-07-26 | 2010-12-01 | 江苏光芒厨卫太阳能科技有限公司 | DC frequency conversion range hood |
| CN102589025A (en) * | 2012-02-17 | 2012-07-18 | 宁波方太厨具有限公司 | Fan speed adaptive regulation device of range hood and control method thereof |
| CN202792178U (en) * | 2012-09-29 | 2013-03-13 | 鲁长春 | Range hood with wind-proof function and foldable lifting air supply device |
| CN103527499A (en) * | 2013-11-08 | 2014-01-22 | 广西科技大学鹿山学院 | Electric fan with two blades |
| CN106352383A (en) * | 2016-10-17 | 2017-01-25 | 宁波方太厨具有限公司 | Range hood |
| CN207162671U (en) * | 2017-08-22 | 2018-03-30 | 宁波方太厨具有限公司 | A kind of range hood of automatic distribution negative pressuren zone |
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