CN103982929A - Constant-air quantity noise-reduction control method and system for smoke ventilator - Google Patents
Constant-air quantity noise-reduction control method and system for smoke ventilator Download PDFInfo
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- CN103982929A CN103982929A CN201410143579.7A CN201410143579A CN103982929A CN 103982929 A CN103982929 A CN 103982929A CN 201410143579 A CN201410143579 A CN 201410143579A CN 103982929 A CN103982929 A CN 103982929A
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Abstract
The invention is applicable to the field of household electrical appliances, especially to a constant-air quantity noise-reduction control method and system for a smoke ventilator. According to the invention, when external air pressure is increased, the rotating speed of a motor is increased so as to reach a target air quantity value; it is judged whether the current rotating speed of the motor of the smoke ventilator, i.e., speed, is greater than a preset maximum rotating speed, i.e., speedmax; if it is, a deceleration current adjustment value delta I1 is acquired, a constant air quantity control current I is adjusted, a deceleration control current I1 is calculated, and the speed of the motor is reduced so as to reduce noise and guarantee the comfort level of a user using the smoke ventilator.
Description
Technical field
The invention belongs to household appliance technical field, relate in particular to a kind of smoke exhaust ventilator permanent wind amount method for noise reduction control and system thereof.
Background technology
Smoke exhaust ventilator claims again range hood, is a kind of kitchen appliance that purifies kitchen environment, and it can be taken the harmful oil smoke producing in the refuse of cooking stove burning and cooking process rapidly away, outside discharge chamber, reduce to pollute, purify air, and have gas defence, explosion-proof safety guarantee effect.
Now a lot of smoke exhaust ventilators all adopt permanent wind amount control program, and along with the variation of air outlet and the air inlet place blast of smoke exhaust ventilator, the motor of smoke exhaust ventilator can regulate electric current or rotating speed to be used for adjusting air quantity automatically.In adjusting the process of air quantity, add external wind pressure to strengthen, or air inlet place intake is less, motor improves rotating speed for reaching target airflow value.And the noise of smoke exhaust ventilator is along with rotating speed improves and increases, excessive noise can have influence on user's comfort, and may not meet national standard.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of smoke exhaust ventilator permanent wind amount method for noise reduction control, and being intended to solve existing smoke exhaust ventilator is that the object that reaches the control of permanent wind amount exists the problem that increases noise.
The embodiment of the present invention is achieved in that a kind of smoke exhaust ventilator permanent wind amount method for noise reduction control, and described method comprises the steps:
Whether the current rotating speed speed that judges fume exhauster motor is greater than the maximum speed speedmax setting in advance:
If so, obtain deceleration electric current adjusted value Δ I
1;
According to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
According to slowing down, control electric current I
1, control decelerating through motor, reduce noise.
Another object of the embodiment of the present invention is to provide a kind of smoke exhaust ventilator permanent wind amount noise-reduction control system, and described control system comprises:
Motor speed judging unit, for judging whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance:
Add/deceleration current adjustment unit, for if obtain deceleration electric current adjusted value Δ I
1;
Add/slow down and control current unit, for according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
Motor control unit, for controlling electric current I according to slowing down
1, control decelerating through motor, reduce noise.
In embodiments of the present invention, when external wind pressure strengthens, when motor improves rotating speed for reaching target airflow value, judge whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance, if so, obtain deceleration electric current adjusted value Δ I
1, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1, control decelerating through motor, reduce noise, guarantee user's comfort.
Accompanying drawing explanation
Fig. 1 is the flow chart of the smoke exhaust ventilator permanent wind amount method for noise reduction control that provides of first embodiment of the invention;
Fig. 2 is the flow chart of the smoke exhaust ventilator permanent wind amount method for noise reduction control that provides of second embodiment of the invention;
Fig. 3 is the flow chart of the smoke exhaust ventilator permanent wind amount method for noise reduction control that provides of third embodiment of the invention;
Fig. 4 is the structure chart of the smoke exhaust ventilator permanent wind amount noise-reduction control system that provides of first embodiment of the invention;
Fig. 5 is the structure chart of the smoke exhaust ventilator permanent wind amount noise-reduction control system that provides of second embodiment of the invention;
Fig. 6 is the structure chart of the smoke exhaust ventilator permanent wind amount noise-reduction control system that provides of third embodiment of the invention.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows the smoke exhaust ventilator permanent wind amount method for noise reduction control that first embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
A kind of smoke exhaust ventilator permanent wind amount method for noise reduction control comprises the steps:
In step S1, detect the current rotating speed speed of fume exhauster motor;
In step S2, judge whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance;
In step S3, if so, obtain deceleration electric current adjusted value Δ I
1;
In step S4, according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
In step S5, according to slowing down, control electric current I
1, control decelerating through motor, reduce noise.
Fig. 2 shows the smoke exhaust ventilator permanent wind amount method for noise reduction control that second embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
A kind of smoke exhaust ventilator permanent wind amount method for noise reduction control comprises the steps:
In step S1, detect the current rotating speed speed of fume exhauster motor;
In step S2, judge whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance;
Step S3 specifically comprises the steps:
In step S301, described if according to following formula, calculate deceleration electric current adjusted value Δ I
1:
ΔI
1=K*（speed-speedmax）*I，K=1/speedmax
Wherein, speed is current rotating speed, and speedmax is the maximum speed setting in advance, and I is that permanent wind amount is controlled electric current;
In step S4, according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
In step S5, according to slowing down, control electric current I
1, control decelerating through motor, reduce noise;
After step S5, also comprise the steps:
In step S6, judge whether the current rotating speed speed of fume exhauster motor is less than the maximum speed speedmax setting in advance:
In step S7, if so, according to following formula, calculate and accelerate electric current adjusted value Δ I
2:
ΔI
2=K*（speed-speedmax）*I
1，K=1/speedmax；
In step S8, according to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1-ΔI
2；
In step S9, according to accelerating to control electric current I
2, control motor speed.
Now illustrate its course of work:
It is 1.5A that permanent wind amount is controlled electric current, and the current rotating speed speed that detects fume exhauster motor is 1500rpm, and motor maximum speed speedmax does not allow to surpass 1400rpm, K=1/1400, deceleration electric current adjusted value Δ I
1=1.5* (1500-1400)/1400=0.107A, slows down and controls electric current I
1whether=1.5-0.107=1.393A, detect rotating speed lower than 1400rpm.When rotating speed is still higher than 1400rpm, available above-mentioned formula recalculates deceleration electric current adjusted value Δ I
1, reduce motor speed.
When the current rotating speed speed of fume exhauster motor is 1350rpm, rotating speed, lower than 1400rpm, accelerates electric current adjusted value Δ I
2=1.393*(1350-1400)/1400=-0.0497A, accelerates to control electric current I
2for 1.393+0.0497=1.4427A.Cycle detection like this.
Fig. 3 shows the smoke exhaust ventilator permanent wind amount method for noise reduction control that third embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
In step S1, detect the current rotating speed speed of fume exhauster motor;
In step S2, judge whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance;
Step S3 specifically comprises the steps:
In step S302, described if obtain deceleration electric current adjusted value Δ I
1concrete steps comprise:
It is deceleration electric current adjusted value Δ I that electric current adjusted value Δ I is set
1;
In step S4, according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
In step S5, according to slowing down, control electric current I
1, control decelerating through motor, reduce noise;
After step S5, also comprise the steps:
In step S10, judge whether the current rotating speed speed of fume exhauster motor is less than the maximum speed speedmax setting in advance:
In step S11, if so, electric current adjusted value Δ I is set for accelerating electric current adjusted value Δ I
2;
In step S12, according to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1+ΔI
2；
In step S13, according to accelerating to control electric current I
2, control motor speed.
Now illustrate its course of work:
It is 1.5A that permanent wind amount is controlled electric current, and the current rotating speed speed that detects fume exhauster motor is 1500rpm, and motor maximum speed speedmax does not allow to surpass 1400rpm, and setting Δ I=0.1A is deceleration electric current adjusted value, slows down and controls electric current I
1whether=1.5-0.1=1.4A, detect rotating speed lower than 1400rpm.When rotating speed is still higher than 1400rpm, available above-mentioned formula recalculates to slow down controls electric current, reduces motor speed.
When the current rotating speed speed of fume exhauster motor is 1300rpm, rotating speed, lower than 1400rpm, is set Δ I=0.1A for accelerating electric current adjusted value, accelerates to control electric current I
2=1.4+0.1=1.5A.Cycle detection like this.
Fig. 4 shows the structure of the smoke exhaust ventilator permanent wind amount noise-reduction control system that first embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
A smoke exhaust ventilator permanent wind amount noise-reduction control system, control system comprises:
Motor speed detecting unit 1, for detection of the current rotating speed speed of fume exhauster motor;
Motor speed judging unit 2, for judging whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance:
Add/deceleration current adjustment unit 3, for if obtain deceleration electric current adjusted value Δ I
1;
Add/slow down and control current unit 4, for according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
Motor control unit 5, for controlling electric current I according to slowing down
1, control decelerating through motor, reduce noise.
Fig. 5 shows the structure of the smoke exhaust ventilator permanent wind amount noise-reduction control system that second embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
As one embodiment of the invention, add/deceleration current adjustment unit 3 comprises add/deceleration electric current adjustment computing module 301.
A smoke exhaust ventilator permanent wind amount noise-reduction control system, control system comprises:
Motor speed detecting unit 1, for detection of the current rotating speed speed of fume exhauster motor;
Motor speed judging unit 2, for judging whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance:
Add/deceleration electric current is adjusted computing module 301, for if according to following formula, calculate deceleration electric current adjusted value Δ I
1:
ΔI
1=K*（speed-speedmax）*I，K=1/speedmax
Wherein, speed is current rotating speed, and speedmax is the maximum speed setting in advance, and I is that permanent wind amount is controlled electric current;
Add/slow down and control current unit 4, for according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
Motor control unit 5, for controlling electric current I according to slowing down
1, control decelerating through motor, reduce noise.
Motor speed judging unit 2, also for judging whether the current rotating speed speed of fume exhauster motor is less than the maximum speed speedmax setting in advance:
Add/deceleration electric current is adjusted computing module 301, also for if according to following formula, calculate and accelerate electric current adjusted value Δ I
2:
ΔI
2=K*（speed-speedmax）*I
1，K=1/speedmax
Wherein, speed is current rotating speed, and speedmax is the maximum speed setting in advance;
Add/slow down and control current unit 4, also, for according to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1-ΔI
2；
Motor control unit 5, also for controlling electric current I according to acceleration
2, control motor speed.
Fig. 6 shows the structure of the smoke exhaust ventilator permanent wind amount noise-reduction control system that third embodiment of the invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
As one embodiment of the invention, add/deceleration current adjustment unit 3 comprises that the adjustment of add/deceleration electric current arranges module 302.
A smoke exhaust ventilator permanent wind amount noise-reduction control system, control system comprises:
Motor speed detecting unit 1, for detection of the current rotating speed speed of fume exhauster motor;
Motor speed judging unit 2, for judging whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance:
The adjustment of add/deceleration electric current arranges module 302, for if it is deceleration electric current adjusted value Δ I that electric current adjusted value Δ I is set
1;
Add/slow down and control current unit 4, for according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
Motor control unit 5, for controlling electric current I according to slowing down
1, control decelerating through motor, reduce noise.
Motor speed judging unit 2, also for judging whether the current rotating speed speed of fume exhauster motor is less than the maximum speed speedmax setting in advance:
The adjustment of add/deceleration electric current arranges module 302, also for if electric current adjusted value Δ I is set for accelerating electric current adjusted value Δ I
2;
Add/slow down and control current unit 4, also, for according to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1+ΔI
2；
Motor control unit 5, also for controlling electric current I according to acceleration
2, control motor speed.
In embodiments of the present invention, when external wind pressure strengthens, when motor improves rotating speed for reaching target airflow value, judge whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance, if so, obtain deceleration electric current adjusted value Δ I
1, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1, control decelerating through motor, reduce noise, guarantee user's comfort.
One of ordinary skill in the art will appreciate that, the all or part of step realizing in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be in being stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a smoke exhaust ventilator permanent wind amount method for noise reduction control, is characterized in that, described method comprises the steps:
Whether the current rotating speed speed that judges fume exhauster motor is greater than the maximum speed speedmax setting in advance:
If so, obtain deceleration electric current adjusted value Δ I
1;
According to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
According to slowing down, control electric current I
1, control decelerating through motor, reduce noise.
2. lampblack absorber permanent wind amount method for noise reduction control as claimed in claim 1, is characterized in that, described if obtain deceleration electric current adjusted value Δ I
1concrete steps comprise:
According to following formula, calculate deceleration electric current adjusted value Δ I
1:
ΔI
1=K*（speed-speedmax）*I，K=1/speedmax
Wherein, speed is current rotating speed, and speedmax is the maximum speed setting in advance.
3. lampblack absorber permanent wind amount method for noise reduction control as claimed in claim 2, is characterized in that, the described electric current I of controlling according to slowing down
1, control decelerating through motor, the step that reduces noise also comprises afterwards:
Whether the current rotating speed speed that judges fume exhauster motor is less than the maximum speed speedmax setting in advance:
If so,, according to following formula, calculate and accelerate electric current adjusted value Δ I
2:
ΔI
2=K*（speed-speedmax）*I
1，K=1/speedmax；
According to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1-ΔI
2；
According to accelerating to control electric current I
2, control motor speed.
4. lampblack absorber permanent wind amount method for noise reduction control as claimed in claim 1, is characterized in that, described if obtain deceleration electric current adjusted value Δ I
1concrete steps comprise:
It is deceleration electric current adjusted value Δ I that electric current adjusted value Δ I is set
1.
5. lampblack absorber permanent wind amount method for noise reduction control as claimed in claim 4, is characterized in that, the described electric current I of controlling according to slowing down
1, control decelerating through motor, the step that reduces noise also comprises afterwards:
Whether the current rotating speed speed that judges fume exhauster motor is less than the maximum speed speedmax setting in advance:
If so, electric current adjusted value Δ I is set for accelerating electric current adjusted value Δ I
2;
According to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1+ΔI
2；
According to accelerating to control electric current I
2, control motor speed.
6. a smoke exhaust ventilator permanent wind amount noise-reduction control system, is characterized in that, described control system comprises:
Motor speed judging unit, for judging whether the current rotating speed speed of fume exhauster motor is greater than the maximum speed speedmax setting in advance:
Add/deceleration current adjustment unit, for if obtain deceleration electric current adjusted value Δ I
1;
Add/slow down and control current unit, for according to following formula, permanent wind amount is controlled to electric current I and adjust, calculating slows down controls electric current I
1:
I
1=I-ΔI
1；
Motor control unit, for controlling electric current I according to slowing down
1, control decelerating through motor, reduce noise.
7. smoke exhaust ventilator permanent wind amount noise-reduction control system as claimed in claim 6, is characterized in that, described in add/deceleration current adjustment unit comprise:
Add/deceleration electric current is adjusted computing module, for according to following formula, calculates deceleration electric current adjusted value Δ I
1:
ΔI
1=K*（speed-speedmax）*I，K=1/speedmax
Wherein, speed is current rotating speed, and speedmax is the maximum speed setting in advance.
8. smoke exhaust ventilator permanent wind amount noise-reduction control system as claimed in claim 7, is characterized in that, described motor speed judging unit, for judging whether the current rotating speed speed of fume exhauster motor is less than the maximum speed speedmax setting in advance:
Add/deceleration electric current is adjusted computing module, for if according to following formula, calculate and accelerate electric current adjusted value Δ I
2:
ΔI
2=K*（speed-speedmax）*I
1，K=1/speedmax；
Add/slow down and control current unit, for according to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1-ΔI
2；
Motor control unit, for controlling electric current I according to acceleration
2, control motor speed.
9. smoke exhaust ventilator permanent wind amount noise-reduction control system as claimed in claim 6, is characterized in that, described in add/deceleration current adjustment unit comprise:
The adjustment of add/deceleration electric current arranges module, for electric current adjusted value Δ I is set, is deceleration electric current adjusted value Δ I
1.
10. smoke exhaust ventilator permanent wind amount noise-reduction control system as claimed in claim 9, is characterized in that, described motor speed judging unit, for judging whether the current rotating speed speed of fume exhauster motor is less than the maximum speed speedmax setting in advance:
The adjustment of add/deceleration electric current arranges module, for if electric current adjusted value Δ I is set for accelerating electric current adjusted value Δ I
2;
Add/slow down and control current unit, for according to following formula, to slowing down, control electric current I
1adjust, calculate and accelerate to control electric current I
2:
I
2=I
1+ΔI
2；
Motor control unit, for controlling electric current I according to acceleration
2, control motor speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143579.7A CN103982929A (en) | 2014-04-10 | 2014-04-10 | Constant-air quantity noise-reduction control method and system for smoke ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143579.7A CN103982929A (en) | 2014-04-10 | 2014-04-10 | Constant-air quantity noise-reduction control method and system for smoke ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982929A true CN103982929A (en) | 2014-08-13 |
Family
ID=51275004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410143579.7A Pending CN103982929A (en) | 2014-04-10 | 2014-04-10 | Constant-air quantity noise-reduction control method and system for smoke ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982929A (en) |
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| CN107355407A (en) * | 2017-06-08 | 2017-11-17 | 珠海格力电器股份有限公司 | A kind of motor air volume control method and device |
| CN107560185A (en) * | 2017-08-01 | 2018-01-09 | 广东威灵电机制造有限公司 | Gas heater and its constant air capacity control and control device |
| CN108253595A (en) * | 2018-01-17 | 2018-07-06 | 广东美的暖通设备有限公司 | The processing method of motor speed, the processing system of motor speed and air conditioner |
| CN111829145A (en) * | 2020-06-09 | 2020-10-27 | 华帝股份有限公司 | Control method of kitchen air conditioner |
| CN112311299A (en) * | 2020-09-18 | 2021-02-02 | 华帝股份有限公司 | Motor control method and cooking device applying same |
| CN113048532A (en) * | 2020-12-30 | 2021-06-29 | 青岛海尔智慧厨房电器有限公司 | Smoke machine system and noise feedback control method and device thereof |
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Application publication date: 20140813 |
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