CN111998413A - Control method for self-adaptive air volume adjustment and range hood applying control method - Google Patents
Control method for self-adaptive air volume adjustment and range hood applying control method Download PDFInfo
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- CN111998413A CN111998413A CN202010933773.0A CN202010933773A CN111998413A CN 111998413 A CN111998413 A CN 111998413A CN 202010933773 A CN202010933773 A CN 202010933773A CN 111998413 A CN111998413 A CN 111998413A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 1
- 230000000391 smoking effect Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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Abstract
The invention discloses a control method for adaptively adjusting air volume and a range hood applying the same, wherein the control method for adaptively adjusting the air volume comprises the following steps: s1, presetting motor rotating speed ranges and current value ranges corresponding to different range hood air volume gears under different flue resistances; and S2, when the range hood operates under different flue resistances, detecting the motor rotating speed and the current value corresponding to the range hood air volume gear in real time, comparing the motor rotating speed and the current value range corresponding to the preset range hood air volume gear, and adjusting the motor rotating speed and the current value according to the comparison result so as to enable the range hood air volume to reach the set value. The control method for self-adaptive air volume adjustment can enable the range hood to automatically adapt to the resistance of a common flue, and automatically adjust the air volume of the range hood under different flue resistances, thereby achieving the purposes of reducing the descending trend of the smoking effect and obviously improving the smoking effect of the range hood within a certain range.
Description
Technical Field
The invention belongs to the technical field of range hoods, and particularly relates to a control method for adaptively adjusting air volume and a range hood applying the control method.
Background
At present, most families are provided with range hoods, waste generated by combustion of gas stoves and oil smoke harmful to human bodies generated in the cooking process are quickly exhausted through a public flue, the kitchen environment is purified, and the human health is protected.
However, the existing range hood gradually attenuates the air quantity along with the increase of the resistance due to the different air outlet resistances under different working conditions. When the resistance of the common flue used by the user is large, the smoking effect of the range hood is sharply reduced, thereby influencing the user experience.
Disclosure of Invention
In order to solve the problems, the invention provides a control method for self-adaptive air volume adjustment, which enables the range hood to automatically adapt to the resistance of a common flue through presetting the motor rotating speed range and the current value range corresponding to different range hood air volume gears under different flue resistances, and automatically adjusts the air volume of the range hood under different flue resistances, thereby obviously improving the smoke absorption effect of the range hood within a certain range.
The invention also aims to provide the range hood.
The technical scheme adopted by the invention is as follows:
a control method for adaptively adjusting air volume comprises the following steps:
s1, presetting motor rotating speed ranges and current value ranges corresponding to different range hood air volume gears under different flue resistances;
and S2, when the range hood operates under different flue resistances, detecting the motor rotating speed and the current value corresponding to the range hood air volume gear in real time, comparing the motor rotating speed and the current value range corresponding to the preset range hood air volume gear, and adjusting the motor rotating speed and the current value according to the comparison result so as to enable the range hood air volume to reach the set value.
Preferably, the S2 specifically includes the following steps:
s21, when the range hood operates under different flue resistances, detecting the motor speed and current value corresponding to the range hood air volume gear in real time;
s22, comparing the motor rotating speed and the current value corresponding to the air quantity gear of the range hood detected in real time with the motor rotating speed range and the current value range corresponding to the air quantity gear of the preset range hood;
s23, when the rotating speed and the current value of the motor corresponding to the range hood air volume gear are smaller than the rotating speed range and the current value range of the motor corresponding to the preset range hood air volume gear, automatically increasing the rotating speed and the current value of the motor;
when the rotating speed and the current value of the motor corresponding to the air volume gear of the range hood are larger than the rotating speed range and the current value range of the motor corresponding to the preset air volume gear of the range hood, automatically reducing the rotating speed and the current value of the motor;
and when the motor rotating speed and the current value corresponding to the air quantity gear of the range hood are in the motor rotating speed range and the current value range corresponding to the preset air quantity gear of the range hood, maintaining the current motor rotating speed and the current value.
Preferably, the S23 further includes:
and when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still smaller than the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood, continuing to automatically increase the rotating speed and the current value of the motor until the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are in the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood.
Preferably, the S23 further includes:
and when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still larger than the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood, continuously and automatically reducing the rotating speed and the current value of the motor until the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are in the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range.
Preferably, before S1, the method further includes:
and S01, simulating different flue resistances on the air volume test bed, and detecting the motor rotating speed ranges and current value ranges corresponding to different simulated air volumes.
Preferably, the first and second electrodes are formed of a metal,
the calculation mode for simulating different flue resistances is as follows:
wherein P0 is flue resistance, P1 is the current static pressure in the range hood, K is an air volume test bed constant, Q represents the simulated air volume, ρ is the current air density, and D is the air volume test bed diffusion size.
Preferably, the calculation formula of the simulated air volume Q is as follows:
wherein Q represents the simulated air volume, a represents the air volume test bed orifice plate coefficient, d represents the air volume test bed opening size, P1 represents the current static pressure in the range hood, and ρ represents the current air density.
Preferably, the opening size d of the air volume test bed is freely adjusted according to the actual simulation air volume Q.
Preferably, the motor rotating speed range and the current value range are both +/-5% of the set value.
The other technical scheme of the invention is realized as follows:
a range hood applying the control method for adaptively adjusting the air volume.
Compared with the prior art, the control method for self-adaptive air volume adjustment enables the range hood to automatically adapt to the common flue resistance through presetting the motor rotating speed range and the current value range corresponding to different range hood air volume gears under different flue resistances, and automatically adjusts the motor rotating speed and the current value under different flue resistances so as to adjust the air volume of the range hood, thereby achieving the purposes of reducing the descending trend of the smoking effect and obviously improving the smoking effect of the range hood within a certain range.
Drawings
Fig. 1 is a flowchart of a control method for adaptively adjusting an air volume according to an embodiment of the present invention;
fig. 2 is a specific flow control diagram of a control method for adaptively adjusting an air volume according to an embodiment of the present invention;
fig. 3 is an air volume effect diagram of a control method for adaptively adjusting an air volume according to an embodiment of the present invention under different flue resistances.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
The embodiment of the invention provides a control method for adaptively adjusting air volume, which comprises the following steps as shown in figures 1-3:
s1, presetting motor rotating speed ranges and current value ranges corresponding to different range hood air volume gears under different flue resistances;
and S2, when the range hood operates under different flue resistances, detecting the motor rotating speed and the current value corresponding to the range hood air volume gear in real time, comparing the motor rotating speed and the current value range corresponding to the preset range hood air volume gear, and adjusting the motor rotating speed and the current value according to the comparison result so as to enable the range hood air volume to reach the set value.
Therefore, the range hood automatically adapts to the resistance of the common flue by presetting the motor rotating speed range and the current value range corresponding to different air quantity gears of the range hood under different flue resistances, and automatically adjusts the rotating speed and the current value of the motor under different flue resistances so as to adjust the air quantity of the range hood, thereby achieving the purposes of reducing the descending trend of the smoking effect and obviously improving the smoking effect of the range hood within a certain range.
The S2 specifically includes the following steps:
s21, when the range hood operates under different flue resistances, detecting the motor speed and current value corresponding to the range hood air volume gear in real time;
s22, comparing the motor rotating speed and the current value corresponding to the air quantity gear of the range hood detected in real time with the motor rotating speed range and the current value range corresponding to the air quantity gear of the preset range hood;
s23, when the rotating speed and the current value of the motor corresponding to the range hood air volume gear are smaller than the rotating speed range and the current value range of the motor corresponding to the preset range hood air volume gear, automatically increasing the rotating speed and the current value of the motor;
when the rotating speed and the current value of the motor corresponding to the air volume gear of the range hood are larger than the rotating speed range and the current value range of the motor corresponding to the preset air volume gear of the range hood, automatically reducing the rotating speed and the current value of the motor;
and when the motor rotating speed and the current value corresponding to the air quantity gear of the range hood are in the motor rotating speed range and the current value range corresponding to the preset air quantity gear of the range hood, maintaining the current motor rotating speed and the current value.
Therefore, under the condition of different flue resistances, the relation between the motor rotating speed and the current value corresponding to the range hood air volume gear detected in real time and the motor rotating speed range and the current value range corresponding to the preset range hood air volume gear is automatically increased, and the motor rotating speed and the current value of the range hood are reduced or maintained, so that the air volume of the range hood is adapted to the current user requirements, the range hood can be smoothly sucked away, and the smoking effect of the range hood is remarkably improved within a certain range.
The S23 further includes:
and when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still smaller than the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood, continuing to automatically increase the rotating speed and the current value of the motor until the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are in the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood.
Therefore, after the rotating speed and the current value of the motor are increased for the first time, when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still smaller than the rotating speed range and the current value range of the motor corresponding to the air quantity gear of the preset range hood, the rotating speed and the current value of the motor are continuously and automatically increased until the rotating speed range and the current value range of the motor corresponding to the air quantity gear of the preset range hood are reached, and the air quantity lifting work of the range hood is completed.
The S23 further includes:
and when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still larger than the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood, continuously and automatically reducing the rotating speed and the current value of the motor until the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are in the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range.
Therefore, after the rotating speed and the current value of the motor are reduced for the first time, when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still larger than the rotating speed range and the current value range of the motor corresponding to the air quantity gear of the preset range hood, the rotating speed and the current value of the motor are continuously and automatically reduced until the rotating speed range and the current value range of the motor corresponding to the air quantity gear of the preset range hood are reached, and the air quantity lifting work of the range hood is completed.
Before S1, the method further includes:
and S01, simulating different flue resistances on the air volume test bed, and detecting the motor rotating speed ranges and current value ranges corresponding to different simulated air volumes.
Therefore, different flue resistances can be simulated on an air volume test bed in a laboratory in advance, and the motor rotating speed ranges and the current value ranges corresponding to different simulated air volumes are detected, so that the motor rotating speed ranges and the current value ranges corresponding to different air volume gears of the range hood are preset in the range hood under different flue resistances.
The calculation mode for simulating different flue resistances is as follows:
wherein P0 is flue resistance, P1 is the current static pressure in the range hood, K is an air volume test bed equipment constant, Q represents the simulated air volume, ρ is the current air density, and D is the air volume test bed equipment diffusion size.
Therefore, different flue resistances in the public flue can be simulated in a laboratory, and different flue resistances are provided for detecting the motor rotating speed range and the current value range which actually correspond to different simulated air volumes in the later period.
The calculation formula of the simulated air volume Q is as follows:
wherein Q represents the simulated air volume, a is the orifice plate coefficient of the air volume test bed equipment, d is the opening size of the air volume test bed, P1 is the current static pressure in the range hood, and ρ is the current air density.
Therefore, different air volume sizes which are actually needed can be simulated for the range hood by simulating the air volume in a laboratory, so that the corresponding motor rotating speed range and current value range under the simulated air volume can be detected.
And the opening size d of the air volume test bed can be freely adjusted according to the actual simulation air volume Q.
Therefore, the simulated air quantity Q is simulated through the opening sizes d of the air quantity test bed corresponding to different nozzles on the air quantity test bed in the laboratory, and the larger the opening is, the smaller the representative resistance is; smaller openings represent greater resistance.
The rotating speed range and the current value range of the motor are +/-5% of set values.
Therefore, the range of the rotating speed and the range of the current value of the motor are +/-5% of the set values, so that the rotating speed and the current value of the motor of the range hood can be maintained in a certain range in the process of adjusting the rotating speed and the current value of the motor, and the air quantity of the range hood is further ensured to be maintained in a certain range.
As shown in fig. 3, the control method of the present application can effectively improve the air volume of the range hood under different flue resistances, the air volume of the range hood in the normal mode rapidly decreases under the condition that the flue resistance is increased, and the control method of the present application can still maintain the normal air volume of the range hood under a certain flue resistance, thereby improving the smoking effect of the range hood.
According to the control method for self-adaptive air volume adjustment, the range of the motor rotating speed and the range of the current value corresponding to different air volume gears of the range hood are preset under different flue resistances, so that the range hood is automatically adapted to the common flue resistance, the motor rotating speed and the current value are automatically adjusted under different flue resistances, and the air volume of the range hood is adjusted, so that the descending trend of the smoking effect is reduced, and the smoking effect of the range hood is remarkably improved within a certain range.
The invention also provides a range hood applying the control method for adaptively adjusting the air volume, so that the range hood can automatically adjust the rotating speed and the current value of the motor under different flue resistances to further adjust the air volume of the range hood, the air volume of the range hood is adapted to the requirements of users, and the smoking effect is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A control method for adaptively adjusting air volume is characterized by comprising the following steps:
s1, presetting motor rotating speed ranges and current value ranges corresponding to different range hood air volume gears under different flue resistances;
and S2, when the range hood operates under different flue resistances, detecting the motor rotating speed and the current value corresponding to the range hood air volume gear in real time, comparing the motor rotating speed and the current value range corresponding to the preset range hood air volume gear, and adjusting the motor rotating speed and the current value according to the comparison result so as to enable the range hood air volume to reach the set value.
2. The control method for adaptively adjusting the air volume according to claim 1, wherein the S2 specifically comprises the following steps:
s21, when the range hood operates under different flue resistances, detecting the motor speed and current value corresponding to the range hood air volume gear in real time;
s22, comparing the motor rotating speed and the current value corresponding to the air quantity gear of the range hood detected in real time with the motor rotating speed range and the current value range corresponding to the air quantity gear of the preset range hood;
s23, when the rotating speed and the current value of the motor corresponding to the range hood air volume gear are smaller than the rotating speed range and the current value range of the motor corresponding to the preset range hood air volume gear, automatically increasing the rotating speed and the current value of the motor;
when the rotating speed and the current value of the motor corresponding to the air volume gear of the range hood are larger than the rotating speed range and the current value range of the motor corresponding to the preset air volume gear of the range hood, automatically reducing the rotating speed and the current value of the motor;
and when the motor rotating speed and the current value corresponding to the air quantity gear of the range hood are in the motor rotating speed range and the current value range corresponding to the preset air quantity gear of the range hood, maintaining the current motor rotating speed and the current value.
3. The control method for adaptively adjusting the air volume according to claim 2, wherein the S23 further comprises:
and when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still smaller than the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood, continuing to automatically increase the rotating speed and the current value of the motor until the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are in the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood.
4. The control method for adaptively adjusting the air volume according to claim 3, wherein the step S23 further comprises:
and when the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are still larger than the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range hood, continuously and automatically reducing the rotating speed and the current value of the motor until the rotating speed and the current value of the motor corresponding to the air quantity gear of the range hood are in the rotating speed range and the current value range of the motor corresponding to the preset air quantity gear of the range.
5. The adaptive control method for the air volume according to any one of claims 1 to 4, further comprising, before the step S1:
and S01, simulating different flue resistances on the air volume test bed, and detecting the motor rotating speed ranges and current value ranges corresponding to different simulated air volumes.
6. The control method for adaptively adjusting an air volume according to claim 5,
the calculation mode for simulating different flue resistances is as follows:
wherein P0 is flue resistance, P1 is the current static pressure in the range hood, K is an air volume test bed constant, Q represents the simulated air volume, ρ is the current air density, and D is the air volume test bed diffusion size.
7. The control method for adaptively adjusting the air volume according to claim 6, wherein the calculation formula of the simulated air volume Q is as follows:
wherein Q represents the simulated air volume, a represents the air volume test bed orifice plate coefficient, d represents the air volume test bed opening size, P1 represents the current static pressure in the range hood, and ρ represents the current air density.
8. The control method for adaptively adjusting the air volume according to claim 7, wherein the size d of the opening of the air volume test bed is freely adjusted according to the actual simulated air volume Q.
9. The control method for adaptively adjusting the air volume according to claim 8, wherein the motor rotation speed range and the current value range are both ± 5% of the set value.
10. A range hood applying the control method for adaptively adjusting the air volume according to any one of claims 1 to 9.
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| CN112856526A (en) * | 2021-01-20 | 2021-05-28 | 宁波方太厨具有限公司 | Air volume self-adaptive adjusting method of range hood and range hood |
| CN112856526B (en) * | 2021-01-20 | 2022-05-17 | 宁波方太厨具有限公司 | Air volume self-adaptive adjusting method of range hood and range hood |
| WO2023093343A1 (en) * | 2021-11-29 | 2023-06-01 | 青岛海尔智慧厨房电器有限公司 | Control method and control system for range hood |
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Application publication date: 20201127 |