CN206001573U - A kind of range hood adjusting with air quantity - Google Patents
A kind of range hood adjusting with air quantity Download PDFInfo
- Publication number
- CN206001573U CN206001573U CN201620911612.0U CN201620911612U CN206001573U CN 206001573 U CN206001573 U CN 206001573U CN 201620911612 U CN201620911612 U CN 201620911612U CN 206001573 U CN206001573 U CN 206001573U
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- CN
- China
- Prior art keywords
- pressure sensor
- range hood
- accessory fan
- air quantity
- master controller
- 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.)
- Withdrawn - After Issue
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Abstract
A kind of with air quantity adjust range hood, including main air blower and smoke pipe it is characterised in that：Also include master controller and the accessory fan being arranged on smoke pipe, in the face of blade of accessory fan, first pressure sensor is installed, in the vacuum side of blade of accessory fan, second pressure sensor is installed, first pressure sensor is used for being connected with the signal input part of master controller with the signal output part of second pressure sensor, and master controller controls the motor speed of accessory fan according to the signal receiving from first pressure sensor and second pressure sensor.This range hood passes through to install pressure transducer in the face of blade of accessory fan and the back side, master controller adjusts the motor speed of accessory fan according to the signal of the pressure transducer on two sides, it is made automatically to match with range hood main air blower, maintain total blast volume can be normally more than exhaust fume range, thus effectively improving smoke absorption effect.In addition, the air quantity control method of this range hood to adjust very convenient, regulating effect good.
Description
Technical field
This utility model is related to a kind of range hood, especially relates to a kind of range hood adjusting with air quantity.
Background technology
Common duct can affect resistance to flow output due to the switch conditions of other users range hood, thus leading to user side to be inhaled
The actual flow of lampblack absorber is continually changing, or even the phenomenon that flue gas can not arranged.At present, the motor speed of a lot of range hoods
Excursion is less it is impossible to the harsh outlet regulating of reply is so that feel when user uses that smoke absorption effect is poor.At present, existing
Have and in technology, disclose the various range hoods with air quantity regulation, such as Patent No. ZL 201310273983.1 (Granted publication
Number be CN 103353136 B) Chinese invention patent disclosed in《A kind of range hood with air quantity regulatory function and its
Control system and control method》, the control system of this range hood includes power module, motor drive module, system control mould
Block, wherein system control module include main control chip, from control chip and sensor group, main control chip is connected with sensor group, electric
Machine drive module is made up of SPM, motor drive ic, sampling and protection circuit, and sensor group detects range hood
Running status simultaneously inputs to main control chip, to after the judgement of range hood running status, main control chip determines that airflow value is sent to motor
Drive module, thus drive direct current generator to work.Although, above-mentioned control system and control method solve can not in prior art
Consider the problem of the kitchen environment and common flue impact to smoke absorption effect so that range hood had not only reduced noise but also saved
Can environmental protection, but its control process to be realized only by the rotating speed controlling the internal main air blower motor of range hood, air quantity tune
Section effect is relatively poor.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned state of the art, provides one kind can will assist wind
The rotational speed regulation of machine is to the range hood adjusting with air quantity matching with range hood main air blower.
This utility model solves the technical scheme that adopted of above-mentioned technical problem：This range hood adjusting with air quantity,
Including main air blower and the smoke pipe being connected to main air blower air outlet it is characterised in that：Also include master controller and be arranged on described cigarette
Accessory fan on pipe, described accessory fan is axial flow blower, is provided with the first pressure in the face of blade of described accessory fan
Force transducer, is provided with second pressure sensor, described first pressure sensor and in the vacuum side of blade of described accessory fan
The signal output part of two pressure transducers be used for be connected with the signal input part of described master controller, described master controller according to from
The signal of first pressure sensor and the reception of second pressure sensor controls the motor speed of described accessory fan.
Preferably, this range hood also include the first reference voltage regulator and the second reference voltage regulator, first
Comparator and the second comparator, the signal output part of described first pressure sensor and the signal of the first reference voltage regulator are defeated
Go out end to be connected with the first input end of described first comparator, the second input respectively, the signal of described second pressure sensor
The signal output part of outfan and the second reference voltage regulator respectively with the first input end of described second comparator, second defeated
Enter end to be connected, the outfan of the outfan of described first comparator and the second comparator signal input all with described master controller
End is connected.
Further preferably, described first pressure sensor and second pressure sensor are arranged on same blade.
Pressure transducer can have multiple choices it is preferable that described first pressure sensor and second pressure sensor
Using piezoelectricity sensor film or piezoquartz or piezoelectric ceramic piece.
Further preferably, described accessory fan at least two is simultaneously sequentially connected in series in front and back.
Accessory fan can have multiple mounting structures it is preferable that described accessory fan includes the blower fan being adapted with smoke pipe
Shell, is provided with the fixed support for being fixed on wall on described blower housing, and the two ends of described blower housing connect
On the corresponding ports of smoke pipe.
Compared with prior art, the utility model has the advantage of：This range hood passes through to install auxiliary wind on smoke pipe
Machine, and pressure transducer is installed at the face of blade in accessory fan and the back side, master controller can be according to the pressure sensing on two sides
The signal of device, to adjust the motor speed of accessory fan so as to automatically match with range hood main air blower, maintains total blast volume to exist
Can be normally more than exhaust fume range, thus effectively improving smoke absorption effect.In addition, the air quantity control method of this range hood is adjusted
Very convenient, regulating effect is good.
Brief description
Fig. 1 is the structural representation of this utility model embodiment；
Fig. 2 removes the structural representation after main air blower shell and accessory fan shell for this utility model embodiment；
Fig. 3 is the smoke pipe decomposing schematic representation being provided with accessory fan of this utility model embodiment；
Fig. 4 is the structural representation of the accessory fan of this utility model embodiment；
Fig. 5 is the structural representation of another angle of accessory fan of this utility model embodiment；
Fig. 6 is the structured flowchart of the air quantity control method of this utility model embodiment.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As shown in Figures 1 to 5, the range hood adjusting with air quantity in the present embodiment includes main air blower 1, smoke pipe 2 and auxiliary
Help blower fan 3, wherein, smoke pipe 2 is connected to the air outlet of main air blower 1, accessory fan 3 is axial flow blower and is serially connected on smoke pipe 2, this
In embodiment, accessory fan 3 has two and is sequentially connected in series in front and back.Accessory fan 3 includes blade 31, blower housing 32 and fixes
Support 33, the two ends of blower housing 32 are connected on the corresponding ports of smoke pipe 2, and blade 31, in blower housing 32, is fixed and propped up
Frame 33 is arranged on blower housing 32, and during installation, fixed support 33 is fixed on body of wall.Further, since accessory fan is hidden in
In the furred ceiling of kitchen, therefore can be in blower housing 32 outer wrapping acoustical cotton lamp acoustic damping materials, to reduce noise.
Each accessory fan 3 all wherein the front of a piece of blade 31 first pressure sensor 5 is installed, in same blade
31 back side is provided with second pressure sensor 6, and first pressure sensor 5 is used for sensing the pressure in corresponding accessory fan 3 front
Power, second pressure sensor 6 is used for sensing the pressure at corresponding accessory fan 3 back side, when flow velocity is different in flue, assists wind
The pressure differential of machine 3 face of blade and back side formation is also different.Pressure transducer can have multiple choices, can be answered using voltage inductance
Thin film, piezoquartz or piezoelectric ceramic piece.
As shown in fig. 6, the range hood in the present embodiment also include master controller 4, the first reference voltage regulator 7,
Two reference voltage regulators 8, first comparator 9 and the second comparator 10.Wherein, the signal output part of first pressure sensor 5
With the signal output part of the first reference voltage regulator 7 first input end, the second input with described first comparator 9 respectively
It is connected, the signal output part of the signal output part of second pressure sensor 6 and the second reference voltage regulator 8 compares with second respectively
It is connected compared with the first input end of device 10, the second input, the outfan of the outfan of first comparator 9 and the second comparator 10 is equal
It is connected with the signal input part of master controller 4.
The air quantity control method of this range hood includes following control process：
1., measured in advance range hood keeps the pressure P of face of blade during normal smoke evacuation measurement1Pressure with vacuum side of blade
P2Between minimum differntial pressure Δ P；
2., the ambient windstream change in first pressure sensor 5 and second pressure sensor 6 sensing smoke pipe, and mutually deserved
Pressure P to face of blade1Pressure P with vacuum side of blade2；
3., P is judged by master controller 41-P2Difference and Δ P relation；
If 4. P1-P2>=Δ P, that is, positive pressure be higher than backside pressure it is believed that now accessory fan effectively improve
The smoke evacuation ability of range hood, therefore keeps the existing rotating speed of accessory fan motor or gear；
If 0<P1-P2<Δ P, now shows that flue outlet resistance ratios are larger, air-flow velocity ratio is relatively low, actual exhaust smoke level compares
Little, user side run cigarette, now just just accessory fan to be played effect it is therefore desirable to pass through main controller controls accessory fan
Improve rotating speed or gear, to strengthen smoke evacuation ability.
If P2-P1>=0, now mean that accessory fan becomes resistance, blown rotation it is therefore desirable to pass through master controller
Accessory fan is controlled to improve rotating speed or gear.Certainly, it is also likely to be now accessory fan motor damage and lead to not rotate,
Correspondingly then need to change the motor of accessory fan, to adapt to the smoke evacuation of whole flue.
Knowable to above-mentioned control process, master controller judges to assist by the output signal comparing two pressure transducers
Blower fan, in the state of flue, accordingly changes the rotating speed of accessory fan afterwards, lifts normal smoke evacuation ability and is unlikely to become
Resistance, so that accessory fan can be matched with main air blower, maintains total blast volume more than normal exhaust fume range, thus improving fume-exhausting
Effect.
The foregoing is only preferred implementation of the present utility model it is noted that for those of ordinary skill in the art
For, under the premise of without departing from principle of the present utility model, this utility model can be carried out with multiple remodeling or improve, these are equal
It is considered within protection domain of the present utility model.
Claims (6)
1. a kind of range hood adjusting with air quantity, including main air blower (1) with the smoke pipe (2) that is connected to main air blower air outlet, its
It is characterised by：Also include master controller (4) and the accessory fan (3) being arranged on described smoke pipe, described accessory fan (3) is
Axial flow blower, is provided with first pressure sensor (5) in blade (31) front of described accessory fan (3), in described auxiliary wind
Blade (31) back side of machine (3) is provided with second pressure sensor (6), and described first pressure sensor (5) and second pressure pass
The signal output part of sensor (6) is used for being connected with the signal input part of described master controller, and described master controller (4) basis is from the
The signal that one pressure transducer (5) and second pressure sensor (6) receive controls the motor speed of described accessory fan (3).
2. according to claim 1 with air quantity adjust range hood it is characterised in that：Also include the first reference voltage
Actuator (7) and the second reference voltage regulator (8), first comparator (9) and the second comparator (10), described first pressure passes
The signal output part of the signal output part of sensor (5) and the first reference voltage regulator (7) respectively with described first comparator (9)
First input end, the second input be connected, the signal output part of described second pressure sensor (6) and the second reference voltage are adjusted
The signal output part of section device (8) is connected with the first input end of described second comparator (10), the second input respectively, and described the
The signal input part phase all with described master controller (4) for the outfan of the outfan of one comparator (9) and the second comparator (10)
Even.
3. according to claim 1 with air quantity adjust range hood it is characterised in that：Described first pressure sensor
(5) it is arranged on same blade (31) with second pressure sensor (6).
4. according to claim 1 with air quantity adjust range hood it is characterised in that：Described first pressure sensor
(5) and second pressure sensor (6) adopt piezoelectricity sensor film or piezoquartz or piezoelectric ceramic piece.
5. according to claim 1 with air quantity adjust range hood it is characterised in that：Described accessory fan (3) is extremely
Rare two are simultaneously sequentially connected in series in front and back.
6. according to claim 1 with air quantity adjust range hood it is characterised in that：Described accessory fan (3) includes
The blower housing (32) being adapted with smoke pipe (2), is provided with for being fixed on consolidating on wall on described blower housing (32)
Fixed rack (33), the two ends of described blower housing (32) are connected on the corresponding ports of smoke pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911612.0U CN206001573U (en) | 2016-08-19 | 2016-08-19 | A kind of range hood adjusting with air quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911612.0U CN206001573U (en) | 2016-08-19 | 2016-08-19 | A kind of range hood adjusting with air quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206001573U true CN206001573U (en) | 2017-03-08 |
Family
ID=58196736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620911612.0U Withdrawn - After Issue CN206001573U (en) | 2016-08-19 | 2016-08-19 | A kind of range hood adjusting with air quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206001573U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123077A (en) * | 2016-08-19 | 2016-11-16 | 宁波方太厨具有限公司 | The range hood of a kind of band air quantity regulation and air quantity control method thereof |
| CN111043637A (en) * | 2020-01-02 | 2020-04-21 | 宁波方太厨具有限公司 | Intelligent adjusting method for noise of range hood |
| CN112087167A (en) * | 2020-08-12 | 2020-12-15 | 华帝股份有限公司 | Motor control method of variable-frequency range hood and variable-frequency range hood |
-
2016
- 2016-08-19 CN CN201620911612.0U patent/CN206001573U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123077A (en) * | 2016-08-19 | 2016-11-16 | 宁波方太厨具有限公司 | The range hood of a kind of band air quantity regulation and air quantity control method thereof |
| CN106123077B (en) * | 2016-08-19 | 2019-02-15 | 宁波方太厨具有限公司 | A kind of range hood and its air quantity control method adjusted with air quantity |
| CN111043637A (en) * | 2020-01-02 | 2020-04-21 | 宁波方太厨具有限公司 | Intelligent adjusting method for noise of range hood |
| CN112087167A (en) * | 2020-08-12 | 2020-12-15 | 华帝股份有限公司 | Motor control method of variable-frequency range hood and variable-frequency range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170308 Effective date of abandoning: 20190215 |
|
| AV01 | Patent right actively abandoned |