CN105485742B - Wind speed and pressure sensor and range hood for range hood - Google Patents
Wind speed and pressure sensor and range hood for range hood Download PDFInfo
- Publication number
- CN105485742B CN105485742B CN201610019728.8A CN201610019728A CN105485742B CN 105485742 B CN105485742 B CN 105485742B CN 201610019728 A CN201610019728 A CN 201610019728A CN 105485742 B CN105485742 B CN 105485742B
- Authority
- CN
- China
- Prior art keywords
- pressure
- wind speed
- pipe
- range hood
- pressure sensor
- 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
Abstract
The invention discloses a kind of wind speed and pressure sensor for range hood, including sampling section, the sampling section includes pressure pipe, it is arranged on the first pressure guiding pipe and the second pressure guiding pipe of the pressure tube end, and pressure sensor, first pressure guiding pipe and the second pressure guiding pipe are connected to the pressure sensor by conduit respectively；Dividing plate is provided with the pressure pipe, the dividing plate will be divided into the first pressure chamber and the second pressure chamber in the pressure pipe, the first pressure chamber is towards air-flow, and the second pressure chamber is away from air-flow；First pressure guiding pipe connects with the first pressure intracavitary, and second pressure guiding pipe connects with the second pressure intracavitary；The pressure pipe (1) is provided with the high pressure pressure port (14) with being connected in the first pressure chamber (12), the pressure pipe (1) is provided with has low pressure pressure port (15) with what is connected in the second pressure chamber (13), it is characterised in that：The hole heart of the high pressure pressure port (14) is located at the side wall of pressure pipe (1) and downside aperture is close to pressure pipe (1) bottom.
Description
Technical field
The present invention relates to a kind of sensor, especially a kind of wind speed and pressure sensor for range hood, one kind application
There are the range hood of the wind speed and pressure sensor, and the rotation speed of fan self_adaptive adjusting method of the range hood.
Background technology
Range hood when in use, when indoor oil smoke increase or common flue blast increase when, it is necessary to adjustment electricity
Machine rotating speed improves smoke discharging effect with increasing exhaust amount, and traditional range hood generally requires user and adjusted manually according to subjective feeling
Section, does not only take up busy both hands so, and finger also becomes easily infected by greasy dirt；Automatically adjusting wind speed according to environment can be significantly
The intellectuality of lampblack absorber is lifted, this is one of characteristic feature of following kitchen appliance；Wind speed is reduced automatically when oil smoke concentration is low,
Electric energy can be saved, noise can also be reduced to a certain degree, builds comfortable cooking environments.
Existing several principles for automatically adjusting lampblack absorber wind speed and device are：1st, by fume exhauster air inlet temperature value and
The size of range burner firepower is perceived, then adjusts the rotating speed of motor；2nd, the image in the kitchen by analyzing shooting, enters to image
Row Smoke Detection, and judge the rank of smog, according to the rotating speed of the degree regulation motor of smog；3rd, examined by photoelectric detecting method
Oil smoke concentration is surveyed, then according to the rotating speed of oil smoke concentration controlled motor；4th, motor speed is detected by Hall sensor, electric current is mutual
Sensor detects current of electric.Then according to the load of blower fan come the rotating speed of regulation motor.Above patent is all to use indirect parameter
(temperature, image, oil smoke concentration, electric current) reacts wind speed, is influenceed by several factors, such as the increase with usage time,
Current of electric can be increasing, even now back pressure not increase in the case of, motor speed be also increase, range hood
Response speed and sensitivity it is all relatively low.
In addition with a kind of self-adaptive regulating for the sensor for having and directly obtaining wind speed and pressure, such as the applicant
A kind of rotation speed of fan self-adaptive regulating of lampblack absorber disclosed in the Chinese patent of Application No. 201210036642.8, including
There is blower fan system and change the rotational speed control module of the motor speed of the blower fan system, and sensor, for direct or indirect
Ground perceives the air draft pressure size of blower fan system, however, sensor therein is more spoken of in general terms, it is not clear that the tool of sensor
Body structure.And it is existing for air-conditioning, the power hand shaft of HVAC system, as conventional flowmeter, then it is not suitable for oil suction
The working environment of cigarette machine, because the flue gas in range hood contains a large amount of oil smoke, after a period of time, the greasy dirt of cohesion is often
Pressure port can be blocked so that pressure pipe cisco unity malfunction, therefore also need to it is for further study, with obtain be suitable for fume-exhausting
The wind speed and pressure sensor of machine working environment.
The content of the invention
First technical problem to be solved by this invention is to be directed to above-mentioned problems of the prior art, there is provided a kind of
Detection is convenient in time, high pressure pressure port is not easy the blocked wind speed and pressure sensor for range hood.
Second technical problem to be solved by this invention is to provide the suction that a kind of application has above-mentioned wind speed and pressure sensor
Lampblack absorber.
It is adaptive that 3rd technical problem to be solved by this invention is to provide a kind of rotation speed of fan of above-mentioned range hood
Adjustment control method.
Technical scheme is used by the present invention solves above-mentioned first technical problem：A kind of wind speed for range hood
Wind pressure sensor, including sampling section, the sampling section include pressure pipe, are arranged on the first impulse of the pressure tube end
Pipe and the second pressure guiding pipe, and pressure sensor, first pressure guiding pipe and the second pressure guiding pipe are connected to institute by conduit respectively
State pressure sensor；Dividing plate is provided with the pressure pipe, the dividing plate will be divided into the first pressure chamber and second in the pressure pipe
Pressure chamber, the first pressure chamber is towards air-flow, and the second pressure chamber is away from air-flow；First pressure guiding pipe and described the
One pressure intracavitary connects, and second pressure guiding pipe connects with the second pressure intracavitary；The pressure pipe is provided with and taken with first
The high pressure pressure port of intracavitary connection is pressed, the pressure pipe is provided with has low pressure pressure port with what the second pressure intracavitary connected, and it is special
Sign is：The hole heart of the high pressure pressure port is located at the side wall of pressure pipe and downside aperture is close to pressure bottom of the tube or and pressure pipe
Bottom flushes.
As an improvement, the high pressure pressure port is more than the aperture away from gravity direction towards the aperture of gravity direction, so as to
The side wall of high pressure pressure port from pressure pipe length direction is set to regard as in inverted V-shaped or inverted U or inverted trapezoidal.
Further to avoid greasy dirt from blocking high pressure pressure port, inner wall hole edge of the high pressure pressure port away from gravity direction is set
There is inwardly protruding interior guide portion, the interior guide portion can be by greasy dirt diversion high pressure pressure port.
Further to avoid greasy dirt from blocking high pressure pressure port, the high pressure pressure port is set close to the outer cinclides edge of gravity direction
Having can be by the outer guide portion of greasy dirt diversion high pressure pressure port.
The outer guide portion can be the tube wall of inclined cut or the outer guide plate of outwardly convex.
Because low pressure pressure port connects with the second pressure chamber, and the second pressure chamber takes away from air-flow, therefore by low pressure
Pressure hole is arranged in the side wall of the pressure pipe, you can ensures that low pressure pressure port will not be blocked by greasy dirt.
In order to ensure the sampling precision of sampling section, the pressure pipe is interspersed with the high pressure pressure port.
For avoid greasy dirt block the first pressure guiding pipe, the second pressure guiding pipe even behind conduit, first pressure guiding pipe and the
Two pressure guiding pipes tilt extension from the junction with the pressure pipe to the direction away from air-flow, there is the inclined angle, even if
There is greasy dirt accumulation also to flow back to come from the first pressure guiding pipe and the second pressure guiding pipe.
Improve again, the dividing plate is the low structure in middle high both sides.
For further avoid greasy dirt block the first pressure guiding pipe, the second pressure guiding pipe even behind conduit, first pressure
Chamber is provided with the first greasy dirt catch at the first pressure guiding pipe, and the second pressure chamber is provided with the second greasy dirt at the second pressure guiding pipe
Catch.
The blower fan of range hood is controlled for ease of the data measured according to the sampling section of wind speed and pressure sensor, it is described
Wind speed and pressure sensor also includes to carry out in real time the rotation speed of fan of lampblack absorber according to the signal that the pressure sensor exports
The circuit control part of control.The circuit control part is located at outside the outlet housing.
The circuit control part includes main control module and controls the rotating speed control mould of the rotation speed of fan of the range hood
Block, the main control module electrically connect with the pressure sensor and rotational speed control module respectively, so as to which main control module passes pressure
The real time value that sensor detects is compared with threshold value set in advance, so as to rotational speed control module output speed signal, with
Control the motor speed of blower fan.
The first technical scheme is used by the present invention solves above-mentioned second technical problem：A kind of range hood, bag
Include blower fan, and the outlet housing at the air outlet of the blower fan, it is characterised in that：It is provided with the outlet housing as described above
Wind speed and pressure sensor, the pressure pipe of the wind speed and pressure sensor is horizontally set in the outlet housing, and described first draws
Pressure pipe, the second pressure guiding pipe, pressure sensor and circuit control part are located at outside the outlet housing.
Second of technical scheme is used by the present invention solves above-mentioned second technical problem：A kind of range hood, bag
Include cigarette casing body and the blower fan being arranged in cigarette casing body, it is characterised in that：Flue or air-out in front of the air inlet
The flue at mouth rear is provided with wind speed and pressure sensor as described above, and the pressure pipe of the wind speed and pressure sensor is horizontally disposed with
In flue, first pressure guiding pipe, the second pressure guiding pipe, pressure sensor and circuit control part are arranged in a protective cover,
The protective cover is arranged in cigarette casing body.
The third technical scheme is used by the present invention solves above-mentioned second technical problem：A kind of range hood, bag
Containing the pipe being connected with common flue, it is characterised in that：Wind speed and pressure sensing as described above is provided with the pipe
Device, the pressure pipe of the wind speed and pressure sensor are horizontally set in the pipe, first pressure guiding pipe, the second impulse
Pipe, pressure sensor) and circuit control part be located at outside the pipe.
The first technical scheme is used by the present invention solves above-mentioned 3rd technical problem：A kind of wind of range hood
Machine rotating speed self_adaptive adjusting method, it is characterised in that：By the circuit control part and range hood of wind speed and pressure sensor
Blower fan connection, then according to following step control rotation speed of fan：
1) range hood, is opened, the blower fan is run under specified n gears；
2), by the real-time wind speed of wind speed and pressure Sensor monitoring, by the circuit control part by real-time wind speed and wind
Fast threshold X %*Vn0Compare, X% is preset value, Vn0Wind speed under the n gears measured for the blower fan under without back pressure environment,
Judge V and X%*Vn0Magnitude relationship；
3), if V is not less than X%*Vn0, then the blower fan keep operating at n gears；If V is less than X%*Vn0, then institute
Stating circuit control part controls the blower fan to jump to the operating of n+1 gears, hereafter repeat step 3).
Second of technical scheme is used by the present invention solves above-mentioned 3rd technical problem：A kind of wind of range hood
Machine rotating speed self_adaptive adjusting method, it is characterised in that：By the circuit control part and range hood of wind speed and pressure sensor
Master board connection, the rotating speed of the blower fan controls by the master board of range hood, then controls wind according to following step
Machine rotating speed：
1) after, the blower fan of the range hood is opened；
2), by the real-time wind speed of wind speed and pressure Sensor monitoring, and wind speed is transferred to the master board of range hood,
The master board of range hood is by real-time wind speed and wind speed threshold X %*Vn0Compare, X% is preset value, Vn0Exist for the blower fan
Without the rotating speed measured under back pressure environment, V and X%*V are judgedn0Magnitude relationship；
3), if V is not less than X%*Vn0, then the blower fan is made to keep current rotating speed；If V is less than X%*Vn0, then oil smoke
The master board of machine controls the blower fan increase rotating speed, hereafter repeat step 3).
Compared with prior art, the advantage of the invention is that：The hole heart of the high pressure pressure port of wind speed and pressure sensor is located at
The side wall of pressure pipe and downside aperture is met to air-flow, or pressure close to pressure bottom of the tube, the bottom front of either pressure pipe
The side wall front of pipe is met to air-flow, conveniently using wall attachment effect greasy dirt can be caused easily readily from the bottom of high pressure pressure port
Lateral opening opening's edge outflow；In further scheme, the high pressure pressure port is more than away from gravity direction towards the aperture of gravity direction
Aperture so that high pressure pressure port from perpendicular to gravity direction into inverted V-shaped or inverted U or inverted trapezoidal, moreover it is possible to make not having
The greasy dirt for oozing and hanging is hung on the tube wall at high pressure pressure port aperture edge.
Brief description of the drawings
Fig. 1 is the sampling section schematic diagram of wind speed wind pressure sensor in the embodiment of the present invention one；
Fig. 2 is the sectional view of the pressure pipe of wind speed wind pressure sensor in the embodiment of the present invention one；
Fig. 3 be in Fig. 1 A-A to sectional view.
Fig. 4 is I portions enlarged drawing in Fig. 1.
Fig. 5 is I portions enlarged drawing in Fig. 2.
Fig. 6 is the circuit control part schematic diagram of wind speed wind pressure sensor in the embodiment of the present invention one；
Fig. 7 is the schematic diagram for the outlet housing that the application of the present invention has the range hood of the wind speed and pressure sensor of embodiment one；
Fig. 8 is the range hood self_adaptive adjusting method flow diagram of the present invention；
Fig. 9 is the wind speed back pressure graph of relation of the first working condition of the range hood of the present invention；
Figure 10 is the wind speed back pressure graph of relation of second of working condition of range hood of the present invention；
Figure 11 is the wind speed back pressure graph of relation of the third working condition of the range hood of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Referring to Fig. 1, a kind of wind speed and pressure sensor, for range hood, including sampling section and circuit control part, adopt
Sample part includes pressure pipe 1, is arranged on the first pressure guiding pipe 21 and the second pressure guiding pipe 22 of the end of pressure pipe 1, and pressure sensing
Device 3.
Wherein, have in pressure pipe 1 along the axially arranged dividing plate 11 of pressure pipe 1, so as to which pressure pipe 1 be divided for positioned at dividing plate
The the first pressure chamber 12 and the second pressure chamber 13 of 11 both sides.First pressure chamber 12 is just facing to air-flow, and the second pressure chamber 13 is remote
From air-flow, i.e., when air-flow passes through pressure pipe 1, the first pressure chamber 12 is first passed through, then by the second pressure chamber 13.
Offered on pressure pipe 1 it is multiple with high pressure pressure port 14 that is being connected in the first pressure chamber 12, and with the second pressure
The low pressure pressure port 15 of connection, air-flow can be entered in the first pressure chamber 12 by high pressure pressure port 14, can also passed through in chamber 13
Low pressure pressure port 15 is entered in the second pressure chamber 13.First pressure guiding pipe 21 in the first pressure chamber 12 with connecting guiding high pressure gas
Stream, the second pressure guiding pipe 22 in the second pressure chamber 13 with connecting guiding low-pressure air current, thus, the first pressure guiding pipe 21 and the second pressure guiding pipe
22 are guided out the air-flow of different pressures, and pressure sensor 3 can then obtain the different air-flow pressure force value of above-mentioned two, circuit control unit
It is divided to, wind speed can be measured by the pressure difference of two different air-flow pressure force value.The principle class of above-mentioned pressure pipe 1, pressure sensor 3
It is similar to air-conditioning, the power hand shaft of HVAC system.
In the present embodiment, pressure pipe 1 is horizontally disposed, and air-flow passes through pressure pipe 1 from the bottom to top, and the first pressure chamber 12 is located at
The lower section of second pressure chamber 13.The pressure guiding pipe 22 of first pressure guiding pipe 21 and second is from the junction with the pressure pipe 1 away from
The direction of air-flow tilts extension, and the first pressure chamber 12 is provided with the first greasy dirt catch 16 at the first pressure guiding pipe 21, described
Second pressure chamber 13 is provided with the second greasy dirt catch 17 at the second pressure guiding pipe 22, is avoided that greasy dirt blocks the first pressure guiding pipe, the
Two pressure guiding pipes even behind conduit, it is shown in Figure 3.
To cause pressure pipe 1 to be applied to the working environment of range hood, high pressure pressure port 14 is set to be not easy to be blocked by greasy dirt, this
Embodiment mesohigh pressure port 14 is overall to be opened in the side wall of pressure pipe 1, i.e., the hole heart of described high pressure pressure port 14, which is located at, to be taken
The side wall of pressure pipe 1 and downside aperture is close to the bottom of pressure pipe 1, while bottom of the high pressure pressure port 14 towards gravity direction can also be made
Portion aperture is more than the upper hole oral pore footpath away from gravity direction, so that side wall of the high pressure pressure port 14 from pressure pipe length direction
Regard as is in inverted V-shaped or inverted U or inverted trapezoidal；In this case, the bottom front of either pressure pipe is met to air-flow, or pressure
The side wall front of pipe, which is met, to air-flow, can reach the purpose that high pressure pressure port 14 is not easy to be blocked by greasy dirt.
In the present embodiment, inner wall hole of the high pressure pressure port 14 away from gravity direction is inwardly protruding and can be by greasy dirt along being provided with
The interior guide portion 18 of diversion high pressure pressure port 14, referring to shown in Fig. 2 and Fig. 5；It is provided with and can incites somebody to action close to the outer cinclides edge of gravity direction
The outer guide portion 19 of greasy dirt diversion high pressure pressure port 14, the present embodiment China and foreign countries guide portion 19 is the tube wall of inclined cut, referring to figure
1st, shown in 4, greasy dirt diversion high pressure pressure port can be such that greasy dirt drop hangs on the tube wall of pressure pipe 1 by outer guide portion 19.
Low pressure pressure port 15 is located in the side wall of pressure pipe 1, and is interspersed with high pressure pressure port 14, i.e., in pressure pipe
1 it is radially not overlapping with high pressure pressure port 14, thus the greasy dirt on low pressure pressure port 15 will not flow directly to high pressure pressure port
14。
First pressure guiding pipe 21 and the second pressure guiding pipe 22 are connected to pressure by the first conduit 41 and the second conduit 42 respectively and passed
Sensor 3, the pressure difference that pressure sensor 3 exports according to two pressure guiding pipes, according to dynamic pressure in Bernoulli equation and wind speed relation, and pass through
The compensation of the parameters such as excess temperature, humidity, air pressure, obtain real-time wind speed V.
Referring to Fig. 6, in addition, also include can be according to the signal that the pressure sensor 3 exports to oil for wind speed and pressure sensor
The circuit control part that the rotation speed of fan of cigarette machine is controlled in real time, the circuit control part, including main control module 5 and rotating speed control
Molding block 6, refer to disclosed in the patent document in background technology, rotational speed control module 5 controls and changes range hood
Blower fan motor speed, main control module 5 electrically connects with pressure sensor 3, the real time value that pressure sensor 3 is detected with
Threshold value set in advance compares, so as to the output speed signal of rotational speed control module 6, to control the motor speed of blower fan.
Referring to Fig. 7, wind speed and pressure sensor of the invention, pressure pipe 1 is horizontally mounted in outlet housing 7, the first impulse
Pipe 21, the second pressure guiding pipe 22, pressure sensor 3 and circuit control part are located at outside outlet housing 7.Outlet housing 7 is arranged on fume-exhausting
The fan outlet of machine.
Pressure pipe 1 can also be horizontally set on the pipe being connected with common flue in the wind speed and pressure sensor of the present invention
Interior, the first pressure guiding pipe 21, the second pressure guiding pipe 22, pressure sensor 3 and circuit control part are located at outside the pipe 7；Now,
The wind speed of collection is relatively precisely and steady.
The wind speed and pressure sensor of the present invention can also be prevented directly in front of lampblack absorber enclosure interior, air inlet
On flue or the flue at air outlet rear；The pressure pipe 1 of wind speed and pressure sensor is horizontally set in flue, described first
Pressure guiding pipe 21, the second pressure guiding pipe 22, pressure sensor 3 and circuit control part are arranged in a protective cover, then by the protective cover
It is arranged in cigarette casing body.
Above-mentioned range hood, at work, automatic adjusument, range hood can be carried out to the rotation speed of fan of range hood
Rotation speed of fan be arranged to multiple gears, the automatic tune of rotation speed of fan is carried out by the way of the threshold value of adjust automatically dynamic pressure
Section, its foundation are：Under the same wind-speed gear of range hood, wind speed reduces with the increase of back pressure, the experiment proved that, wind
Under different stalls, the relation curve of its wind speed and back pressure mutually disjoints machine.
Referring to Fig. 8, the blower fan of the circuit control part of wind speed and pressure sensor and range hood is connected, blower fan is adaptive
The control method of regulation is：
1) range hood is opened, is started shooting by user or other sensors, and run under specified n gears；
2) real-time wind speed V is detected by the sampling section of wind speed and pressure sensor, is transferred to main control module 5, main control module 5 will
The real-time wind speed V and wind speed threshold X %*Vn0Compare, wherein, X% is preset value, such as 90%, range hood it can make according to
The empirical value obtained with environment, Vn0For the wind speed under the n gears that are measured under experimental situation (in the case of no back pressure), judge V with
X%*Vn0Magnitude relationship；
3) if V is not less than X%*Vn0, then range hood keep operate at n gears；If V is less than X%*Vn0, then master control
Module 5 is to the output speed signal of rotational speed control module 6 so that the motor of the blower fan of range hood automatic jumps to n+1 gears fortune
Turn (wind speed increasing), hereafter continue to judge V and X%*Vn0Between size, repeat step 3.
Specifically, referring to Fig. 9, in the plot, 1,2,3,4,5 curves are respectively gear 1, gear 2, gear 3, gear
4 and wind speed of the gear 5 under different back pressures, gear is 2 when such as opening, and now, operating point is more than A points in B points, the wind speed of B points
(threshold point), then range hood be then maintained at gear 2 and work.
Referring to Figure 10, likewise, in the plot, 1,2,3,4,5 curves are respectively gear 1, gear 2, gear 3, shelves
The wind speed of position 4 and gear 5 under different back pressures, gear is 2 when such as opening, and now, operating point is less than A in B points, the wind speed of B points
Point (threshold point), then range hood jump to gear 3 automatically, now operating point is C points, and the wind speed of C points is more than A points, hereafter oil suction
Cigarette machine remains in gear 3 and worked.
Referring to Figure 11, likewise, in the plot, 1,2,3,4,5 curves are respectively gear 1, gear 2, gear 3, shelves
The wind speed of position 4 and gear 5 under different back pressures, gear is 2 when such as opening, and now, operating point is less than A in B points, the wind speed of B points
Point (threshold point), then range hood jump to gear 3 automatically, now operating point is C points, and the wind speed of C points is then inhaled still less than A points
Lampblack absorber continues up trip stop and worked to gear 4, until operating point wind speed is more than A points.
If wind speed and pressure sensor does not include blower fan that can be according to the signal that the pressure sensor 3 exports to lampblack absorber
The circuit control part that rotating speed is controlled in real time, the master board of wind speed and pressure sensor and range hood can also be connected
Connect, and the rotating speed of existing blower fan is controlled by the master board of range hood, then master board control is according to following steps
Rapid control rotation speed of fan：
1) after, the blower fan of the range hood is opened；
2), by the real-time wind speed of wind speed and pressure Sensor monitoring, and wind speed is transferred to the master board of range hood,
The master board of range hood is by real-time wind speed and wind speed threshold X %*Vn0Compare, X% is preset value, Vn0Exist for the blower fan
Without the rotating speed measured under back pressure environment, V and X%*V are judgedn0Magnitude relationship；
3), if V is not less than X%*Vn0, then the blower fan is made to keep current rotating speed；If V is less than X%*Vn0, then oil smoke
The master board of machine controls the blower fan increase rotating speed, hereafter repeat step 3).
Claims (14)
1. a kind of wind speed and pressure sensor for range hood, including sampling section, the sampling section include pressure pipe
(1) first pressure guiding pipe (21) and the second pressure guiding pipe (22) of the pressure pipe (1) end, and pressure sensor, are arranged on
(3), first pressure guiding pipe (21) and the second pressure guiding pipe (22) are connected to the pressure sensor (3) by conduit respectively；
Dividing plate (11) is provided with the pressure pipe (1), the dividing plate (11) will be divided into the first pressure chamber in the pressure pipe (1)
(12) and the second pressure chamber (13), the first pressure chamber (12) is towards air-flow, and the second pressure chamber (13) is away from air-flow；
First pressure guiding pipe (21) in the first pressure chamber (12) with connecting, second pressure guiding pipe (22) and second pressure
Connected in chamber (13)；The pressure pipe (1) is provided with the high pressure pressure port (14) with being connected in the first pressure chamber (12), described to take
Pressure pipe (1) is provided with has low pressure pressure port (15) with what is connected in the second pressure chamber (13), it is characterised in that：The high pressure pressure
The hole heart in hole (14) is located at the side wall of pressure pipe (1) and downside aperture is close to pressure pipe (1) bottom；The high pressure pressure port (14)
Inner wall hole edge away from gravity direction is provided with inwardly protruded interior guide portion.
2. the wind speed and pressure sensor according to claim 1 for range hood, it is characterised in that：The high pressure pressure
Hole (14) is more than the aperture away from gravity direction towards the aperture of gravity direction, so that high pressure pressure port is from pressure length of tube side
To side wall regard as in inverted V-shaped or inverted U or inverted trapezoidal.
3. the wind speed and pressure sensor according to claim 1 for range hood, it is characterised in that：The high pressure pressure
Hole (14) is provided with close to the outer cinclides edge of gravity direction can be by the outer guide portion of greasy dirt diversion high pressure pressure port (14).
4. the wind speed and pressure sensor according to claim 3 for range hood, it is characterised in that：The outer guide portion
The outer guide plate of tube wall or outwardly convex for inclined cut.
5. it is used for the wind speed and pressure sensor of range hood as claimed in claim 1, it is characterised in that：Low pressure pressure port is set
In the side wall of the pressure pipe, it is interspersed with the high pressure pressure port.
6. it is used for the wind speed and pressure sensor of range hood as claimed in claim 1, it is characterised in that：First pressure guiding pipe
(21) and the second pressure guiding pipe (22) tilts extension from the junction with the pressure pipe (1) to the direction away from air-flow.
7. it is used for the wind speed and pressure sensor of range hood as claimed in claim 1, it is characterised in that：The first pressure chamber
(12) the first greasy dirt catch is provided with close to the first pressure guiding pipe (21) place, the second pressure chamber (13) is close to the second pressure guiding pipe (22)
Place is provided with the second greasy dirt catch.
8. the wind speed and pressure sensor for range hood as described in any one claim in right 1~7, its feature
It is：The wind speed and pressure sensor also includes to obtain real-time wind speed V's according to the signal that the pressure sensor (3) exports
Circuit control part.
9. it is used for the wind speed and pressure sensor of range hood as claimed in claim 8, it is characterised in that：The circuit control unit
Divide the rotational speed control module (6) for the rotation speed of fan for including main control module (5) and the control range hood, the main control module
(5) electrically connected respectively with the pressure sensor (3) and rotational speed control module (6).
10. a kind of range hood, including blower fan, and the outlet housing (7) at the air outlet of the blower fan, it is characterised in that：
Wind speed and pressure sensor as claimed in claim 9, the pressure of the wind speed and pressure sensor are provided with the outlet housing (7)
Pipe (1) is horizontally set in the outlet housing (7), first pressure guiding pipe (21), the second pressure guiding pipe (22), pressure sensor
(3) and circuit control part is located at the outlet housing (7) outside.
11. a kind of range hood, including cigarette casing body and the blower fan that is arranged in cigarette casing body, it is characterised in that：The blower fan
The flue of flue or air outlet rear in front of air inlet is provided with wind speed and pressure sensor as claimed in claim 1, described
The pressure pipe (1) of wind speed and pressure sensor is horizontally set in flue, first pressure guiding pipe (21), the second pressure guiding pipe (22),
Pressure sensor (3) and circuit control part are arranged in a protective cover, and the protective cover is arranged in cigarette casing body.
12. a kind of range hood, include the pipe being connected with common flue, it is characterised in that：It is provided with the pipe
Wind speed and pressure sensor as claimed in claim 1, the pressure pipe (1) of the wind speed and pressure sensor be horizontally set on it is described go out
In smoke pipe, first pressure guiding pipe (21), the second pressure guiding pipe (22), pressure sensor (3) and circuit control part are positioned at described
Pipe (7) is outside.
A kind of 13. rotation speed of fan self_adaptive adjusting method of range hood as claimed in claim 10, it is characterised in that：
The blower fan of the circuit control part of wind speed and pressure sensor and range hood is connected, the circuit control unit of wind speed and pressure sensor
Divide and rotation speed of fan is controlled according to following step：
1) range hood, is opened, the blower fan is run under specified n gears；
2), by the real-time wind speed of wind speed and pressure Sensor monitoring, by the circuit control part by real-time wind speed and wind speed threshold
Value X%*Vn0Compare, X% is preset value, Vn0Wind speed under the n gears measured for the blower fan under without back pressure environment, judges V
With X%*Vn0Magnitude relationship；
3), if V is not less than X%*Vn0, then the blower fan keep operating at n gears；If V is less than X%*Vn0, then the circuit
Control section controls the blower fan to jump to the operating of n+1 gears, hereafter repeat step 3).
14. a kind of rotation speed of fan self_adaptive adjusting method of range hood as described in claim 10 or 11, its feature
It is：The master board of wind speed and pressure sensor and range hood is connected, the rotating speed of the blower fan by range hood master control
Making sheet controls, and master board controls rotation speed of fan according to following step：
1) after, the blower fan of the range hood is opened；
2), by the real-time wind speed of wind speed and pressure Sensor monitoring, and wind speed is transferred to the master board of range hood, oil suction
The master board of cigarette machine is by real-time wind speed and wind speed threshold X %*Vn0Compare, X% is preset value, Vn0It is the blower fan without the back of the body
The rotating speed measured under pressure ring border, judges V and X%*Vn0Magnitude relationship；
3), if V is not less than X%*Vn0, then the blower fan is made to keep current rotating speed；If V is less than X%*Vn0, then lampblack absorber
Master board controls the blower fan increase rotating speed, hereafter repeat step 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019728.8A CN105485742B (en) | 2016-01-13 | 2016-01-13 | Wind speed and pressure sensor and range hood for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019728.8A CN105485742B (en) | 2016-01-13 | 2016-01-13 | Wind speed and pressure sensor and range hood for range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105485742A CN105485742A (en) | 2016-04-13 |
| CN105485742B true CN105485742B (en) | 2018-02-02 |
Family
ID=55672896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019728.8A Active CN105485742B (en) | 2016-01-13 | 2016-01-13 | Wind speed and pressure sensor and range hood for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105485742B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152218B (en) * | 2016-08-19 | 2019-03-08 | 宁波方太厨具有限公司 | A kind of range hood and its flow control methods adjusted with flow |
| CN114018775B (en) * | 2021-11-04 | 2024-01-12 | 无锡锐丰源环境科技有限公司 | Online monitoring device for oil smoke particle mass concentration |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515840A (en) * | 1995-02-24 | 1996-05-14 | Jang; Sun-Sing | Fume exhausting device |
| CN105158504A (en) * | 2015-09-17 | 2015-12-16 | 宁波方太厨具有限公司 | Wind speed and wind pressure sensor for range hood and range hood |
| CN205351444U (en) * | 2016-01-13 | 2016-06-29 | 宁波方太厨具有限公司 | A air speed and pressure sensor and range hood for range hood |
-
2016
- 2016-01-13 CN CN201610019728.8A patent/CN105485742B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5515840A (en) * | 1995-02-24 | 1996-05-14 | Jang; Sun-Sing | Fume exhausting device |
| CN105158504A (en) * | 2015-09-17 | 2015-12-16 | 宁波方太厨具有限公司 | Wind speed and wind pressure sensor for range hood and range hood |
| CN205351444U (en) * | 2016-01-13 | 2016-06-29 | 宁波方太厨具有限公司 | A air speed and pressure sensor and range hood for range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485742A (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105546603B (en) | Wind speed and pressure sensor and range hood for range hood | |
| CN104329708B (en) | Near-suction type oil smoke suction machine | |
| CN209026907U (en) | A kind of range hood | |
| CN108006732B (en) | Range hood with adjustable suction effect | |
| CN107990378B (en) | Multi-suction-inlet range hood and control method thereof | |
| CN106352383B (en) | A kind of range hood | |
| CN105485742B (en) | Wind speed and pressure sensor and range hood for range hood | |
| CN206831604U (en) | A kind of smoke exhaust ventilator of cigarette stove linkage | |
| CN110486773B (en) | Control method of range hood and range hood | |
| CN205227466U (en) | Wind pressure control type range hood | |
| CN206207506U (en) | Range hood and constant air volume adjusting system thereof | |
| CN109990345A (en) | Negative pressure area adjustable range hood | |
| CN207230691U (en) | Range hood | |
| CN205351444U (en) | A air speed and pressure sensor and range hood for range hood | |
| CN110594821B (en) | Range hood and control method thereof | |
| CN109838863A (en) | A kind of dynamic indoor pressure regulating system | |
| CN208253672U (en) | Range hood with adjustable negative pressure area | |
| CN105465864B (en) | Wind speed and pressure sensor and range hood for range hood | |
| CN205351443U (en) | A air speed and pressure sensor and range hood for range hood | |
| CN107655048A (en) | Range hood and constant air volume adjusting method and system thereof | |
| CN112254188A (en) | Cooking device and control method thereof | |
| CN110906395B (en) | Control method of range hood | |
| CN110131758A (en) | A kind of cover plate assembly and integrated kitchen range | |
| CN109237569A (en) | The control method of fume extracting system, kitchen ventilator and fume extracting system | |
| CN210128389U (en) | Fume exhaust fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |