CN103968436A - Switching control method and system for constant air volume and constant rotate speed of smoke exhaust ventilator - Google Patents
Switching control method and system for constant air volume and constant rotate speed of smoke exhaust ventilator Download PDFInfo
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Abstract
The invention applies to the field of household appliances, and particularly relates to a switching control method and system for the constant air volume and the constant rotate speed of a smoke exhaust ventilator. According to the invention, in the process of mutual switching between the two controlling states of the constant air volume and the constant rotate speed, electrical current control signals before and after switching of the two controlling states are not changed firstly; the corresponding to-be-switched controlling state parameters are calculated according to the present controlling state parameters, and to-be-switched controlling state signals are generated according to the to-be-switched controlling state parameters, so that inner ring control signals and outer ring control signals are not changed, the soft switching between the two controlling states is guaranteed, the work of a motor cannot be changed obviously when the switching is conducted, and the motorfluctuation can be avoided.
Description
Technical field
The invention belongs to household appliance technical field, relate in particular to a kind of smoke exhaust ventilator permanent wind amount and permanent rotating speed method for handover 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 can general constant rotational speed control program and constant wind quantity control program; above-mentioned two kinds of control programs; generally can adopt two closed-loop controls; in, ring is current closed-loop control; outer shroud is that speed closed loop is controlled or air quantity closed-loop control; and on the smoke exhaust ventilator platform that can simultaneously apply at two schemes; according to user's demand; above-mentioned two kinds of control programs need mutually to switch; and may there is obvious fluctuation in motor in handoff procedure; even shut down, cause that smoke exhaust ventilator delivery outlet air quantity changes obviously.
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 and permanent rotating speed method for handover control, is intended to solve existing smoke exhaust ventilator and in the mutual handoff procedure of permanent wind amount and two kinds of state of a controls of permanent rotating speed, has the problem of motor fluctuation.
The embodiment of the present invention is achieved in that a kind of smoke exhaust ventilator permanent wind amount and permanent rotating speed method for handover control, and described method comprises the steps:
Keep two kinds of current controling signals before and after state of a controls switching constant;
According to current state of a control parameter, calculate corresponding wish switching controls state parameter, according to described wish switching controls state parameter, generate and want switching controls state control signal;
According to described current controling signal and wish switching controls state control signal, generate Electric Machine Control electric current, control motor speed.
Another object of the embodiment of the present invention is to provide a kind of smoke exhaust ventilator permanent wind amount and permanent rotating speed handover control system, and described system comprises:
Current controling signal switch unit, for keeping two kinds of current controling signals before and after state of a controls switching constant;
Control signal generation unit, for according to current state of a control parameter, calculates corresponding wish switching controls state parameter, according to described wish switching controls state parameter, generates and wants switching controls state control signal;
Electric Machine Control electric current generation unit, for according to described current controling signal and wish switching controls state control signal, generates Electric Machine Control electric current, controls motor speed.
In embodiments of the present invention, in the mutual handoff procedure of permanent wind amount and two kinds of state of a controls of permanent rotating speed, first keep two kinds of current controling signals before and after state of a controls switching constant, again according to current state of a control parameter, calculate corresponding wish switching controls state parameter, according to wanting switching controls state parameter, generate wish switching controls state control signal, in keeping like this, ring control signal and outer shroud control signal are constant, thereby guarantee soft handover between two kinds of state of a controls, while making to switch, the work of motor does not have significant change, avoids occurring the phenomenon of motor fluctuation.
Accompanying drawing explanation
Fig. 1 is the smoke exhaust ventilator permanent wind amount that provides of first embodiment of the invention and the flow chart of permanent rotating speed method for handover control;
Fig. 2 is the smoke exhaust ventilator permanent wind amount that provides of second embodiment of the invention and the flow chart of permanent rotating speed method for handover control;
Fig. 3 is the smoke exhaust ventilator permanent wind amount that provides of third embodiment of the invention and the flow chart of permanent rotating speed method for handover control;
Fig. 4 is the smoke exhaust ventilator permanent wind amount that provides of first embodiment of the invention and the structure chart of permanent rotating speed handover control system;
Fig. 5 is the smoke exhaust ventilator permanent wind amount that provides of second embodiment of the invention and the structure chart of permanent rotating speed handover control system;
Fig. 6 is the smoke exhaust ventilator permanent wind amount that provides of third embodiment of the invention and the structure chart of permanent rotating speed handover control system.
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 smoke exhaust ventilator permanent wind amount and the permanent rotating speed method for handover 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 and permanent rotating speed method for handover control comprise the steps:
In step S1, keep two kinds of current controling signals before and after state of a controls switching constant;
In step S2, according to current state of a control parameter, calculate corresponding wish switching controls state parameter, according to wanting switching controls state parameter, generate wish switching controls state control signal.
As one embodiment of the invention, state of a control parameter comprises rotating speed and air quantity.
Above-mentioned control method also comprises the steps:
In step S3, according to current controling signal and wish switching controls state control signal, generate Electric Machine Control electric current, control motor speed.
Fig. 2 shows smoke exhaust ventilator permanent wind amount and the permanent rotating speed method for handover 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.
As one embodiment of the invention, step S1 specifically comprises:
In step S201, in constant rotational speed state of a control, switch in constant wind quantity state of a control process, keep the current controling signal of constant wind quantity state of a control consistent with the current controling signal of constant rotational speed state of a control;
As one embodiment of the invention, step S2 specifically comprises:
In step S202, in constant rotational speed state of a control, switch in constant wind quantity state of a control process, calculate the airflow value Q that current rotating speed is corresponding;
In step S203, according to airflow value Q, generate air quantity control signal.
Above-mentioned control method also comprises the steps:
In step S204, according to current controling signal and air quantity control signal, generate Electric Machine Control electric current, control motor speed.
In constant rotational speed state of a control, switch in constant wind quantity state of a control process, first keep two kinds of current controling signals before and after state of a controls switching constant, calculate the airflow value Q that current rotating speed is corresponding, according to airflow value Q, generate air quantity control signal, in keeping like this, ring control signal and outer shroud control signal are constant, thereby guarantee soft handover between two kinds of state of a controls, while making to switch, the work of motor does not have significant change.
Fig. 3 shows smoke exhaust ventilator permanent wind amount and the permanent rotating speed method for handover 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.
As one embodiment of the invention, step S1 specifically comprises:
In step S301, in constant wind quantity state of a control, switch in constant rotational speed state of a control process, keep the current controling signal of constant rotational speed state of a control consistent with the current controling signal of constant wind quantity state of a control;
As one embodiment of the invention, step S2 specifically comprises:
In step S302, in constant wind quantity state of a control, switch in constant rotational speed state of a control process, calculate the tachometer value speed that current air quantity is corresponding;
In step S303, according to tachometer value speed, generate speed controling signal.
Above-mentioned control method also comprises the steps:
In step S304, according to current controling signal and speed controling signal, generate Electric Machine Control electric current, control motor speed.
In constant wind quantity state of a control, switch in constant rotational speed state of a control process, first keep two kinds of current controling signals before and after state of a controls switching constant, calculate the tachometer value speed that current air quantity is corresponding, according to tachometer value speed, generate speed controling signal, in keeping like this, ring control signal and outer shroud control signal are constant, thereby guarantee soft handover between two kinds of state of a controls, while making to switch, the work of motor does not have significant change.
Fig. 4 shows smoke exhaust ventilator permanent wind amount that first embodiment of the invention provides and the structure of permanent rotating speed handover control system, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
Smoke exhaust ventilator permanent wind amount and a permanent rotating speed handover control system, control system comprises:
Current controling signal switch unit 1, for keeping two kinds of current controling signals before and after state of a controls switching constant;
Control signal generation unit 2, for according to current state of a control parameter, calculates corresponding wish switching controls state parameter, according to wanting switching controls state parameter, generates wish switching controls state control signal.
Above-mentioned control system also comprises:
Electric Machine Control electric current generation unit 3, for according to current controling signal and wish switching controls state control signal, generates Electric Machine Control electric current, controls motor speed.
Fig. 5 shows smoke exhaust ventilator permanent wind amount that second embodiment of the invention provides and the structure of permanent rotating speed handover control system, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
As one embodiment of the invention, current controling signal switch unit 1, for switch constant wind quantity state of a control process in constant rotational speed state of a control, keep the current controling signal of constant wind quantity state of a control consistent with the current controling signal of constant rotational speed state of a control.
Control signal generation unit 2 comprises:
State of a control parameter generation module 201, for switch constant wind quantity state of a control process in constant rotational speed state of a control, calculates the airflow value Q that current rotating speed is corresponding;
Control signal generation module 202, for generating air quantity control signal according to described airflow value Q.
Above-mentioned control system also comprises:
Electric Machine Control electric current generation unit 3, for according to current controling signal and air quantity control signal, generates Electric Machine Control electric current, controls motor speed.
Fig. 6 shows smoke exhaust ventilator permanent wind amount that third embodiment of the invention provides and the structure of permanent rotating speed handover control system, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
As one embodiment of the invention, current controling signal switch unit 1, for switch constant rotational speed state of a control process in constant wind quantity state of a control, keep the current controling signal of constant rotational speed state of a control consistent with the current controling signal of constant wind quantity state of a control.
Control signal generation unit 2 comprises:
State of a control parameter generation module 203, for switch constant rotational speed state of a control process in constant wind quantity state of a control, calculates the tachometer value speed that current air quantity is corresponding;
Control signal generation module 204, for generating speed controling signal according to described tachometer value speed.
Above-mentioned control system also comprises:
Electric Machine Control electric current generation unit 3, for according to current controling signal and speed controling signal, generates Electric Machine Control electric current, controls motor speed.
In embodiments of the present invention, in the mutual handoff procedure of permanent wind amount and two kinds of state of a controls of permanent rotating speed, first keep two kinds of current controling signals before and after state of a controls switching constant, again according to current state of a control parameter, calculate corresponding wish switching controls state parameter, according to wanting switching controls state parameter, generate wish switching controls state control signal, in keeping like this, ring control signal and outer shroud control signal are constant, thereby guarantee soft handover between two kinds of state of a controls, while making to switch, the work of motor does not have significant change, avoids occurring the phenomenon of motor fluctuation.
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. smoke exhaust ventilator permanent wind amount and a permanent rotating speed method for handover control, is characterized in that, described method comprises the steps:
Keep two kinds of current controling signals before and after state of a controls switching constant;
According to current state of a control parameter, calculate corresponding wish switching controls state parameter, according to described wish switching controls state parameter, generate and want switching controls state control signal;
According to described current controling signal and wish switching controls state control signal, generate Electric Machine Control electric current, control motor speed.
2. smoke exhaust ventilator permanent wind amount as claimed in claim 1 and permanent rotating speed method for handover control, is characterized in that, the constant concrete steps of current controling signal that two kinds of state of a controls of described maintenance are switched front and back comprise:
In constant rotational speed state of a control, switch in constant wind quantity state of a control process, keep the current controling signal of constant wind quantity state of a control consistent with the current controling signal of constant rotational speed state of a control.
3. smoke exhaust ventilator permanent wind amount as claimed in claim 2 and permanent rotating speed method for handover control, it is characterized in that, described according to current state of a control parameter, calculate corresponding wish switching controls state parameter, the concrete steps that generate wish switching controls state control signal according to described wish switching controls state parameter comprise:
In constant rotational speed state of a control, switch in constant wind quantity state of a control process, calculate the airflow value Q that current rotating speed is corresponding;
According to described airflow value Q, generate air quantity control signal.
4. smoke exhaust ventilator permanent wind amount as claimed in claim 1 and permanent rotating speed method for handover control, is characterized in that, the constant concrete steps of current controling signal that two kinds of state of a controls of described maintenance are switched front and back comprise:
In constant wind quantity state of a control, switch in constant rotational speed state of a control process, keep the current controling signal of constant rotational speed state of a control consistent with the current controling signal of constant wind quantity state of a control.
5. smoke exhaust ventilator permanent wind amount as claimed in claim 4 and permanent rotating speed method for handover control, it is characterized in that, described according to current state of a control parameter, calculate corresponding wish switching controls state parameter, the concrete steps that generate wish switching controls state control signal according to described wish switching controls state parameter comprise:
In constant wind quantity state of a control, switch in constant rotational speed state of a control process, calculate the tachometer value speed that current air quantity is corresponding;
According to described tachometer value speed, generate speed controling signal.
6. smoke exhaust ventilator permanent wind amount and a permanent rotating speed handover control system, is characterized in that, described system comprises:
Current controling signal switch unit, for keeping two kinds of current controling signals before and after state of a controls switching constant;
Control signal generation unit, for according to current state of a control parameter, calculates corresponding wish switching controls state parameter, according to described wish switching controls state parameter, generates and wants switching controls state control signal;
Electric Machine Control electric current generation unit, for according to described current controling signal and wish switching controls state control signal, generates Electric Machine Control electric current, controls motor speed.
7. smoke exhaust ventilator permanent wind amount as claimed in claim 6 and permanent rotating speed handover control system, it is characterized in that, described current controling signal switch unit, for switch constant wind quantity state of a control process in constant rotational speed state of a control, keep the current controling signal of constant wind quantity state of a control consistent with the current controling signal of constant rotational speed state of a control.
8. smoke exhaust ventilator permanent wind amount as claimed in claim 7 and permanent rotating speed handover control system, is characterized in that, described control signal generation unit comprises:
State of a control parameter generation module, for switch constant wind quantity state of a control process in constant rotational speed state of a control, calculates the airflow value Q that current rotating speed is corresponding;
Control signal generation module, for generating air quantity control signal according to described airflow value Q.
9. smoke exhaust ventilator permanent wind amount as claimed in claim 6 and permanent rotating speed handover control system, it is characterized in that, described current controling signal switch unit, for switch constant rotational speed state of a control process in constant wind quantity state of a control, keep the current controling signal of constant rotational speed state of a control consistent with the current controling signal of constant wind quantity state of a control.
10. smoke exhaust ventilator permanent wind amount as claimed in claim 9 and permanent rotating speed handover control system, is characterized in that, described control signal generation unit comprises:
State of a control parameter generation module, switches in constant rotational speed state of a control process in constant wind quantity state of a control, calculates the tachometer value speed that current air quantity is corresponding;
Control signal generation module, for generating speed controling signal according to described tachometer value speed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410169624.6A CN103968436B (en) | 2014-04-24 | 2014-04-24 | A kind of smoke exhaust ventilator permanent wind amount and permanent rotating speed method for handover control and its system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410169624.6A CN103968436B (en) | 2014-04-24 | 2014-04-24 | A kind of smoke exhaust ventilator permanent wind amount and permanent rotating speed method for handover control and its system |
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| CN103968436A true CN103968436A (en) | 2014-08-06 |
| CN103968436B CN103968436B (en) | 2017-07-04 |
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| CN106152385A (en) * | 2015-04-10 | 2016-11-23 | 中山大洋电机股份有限公司 | The control method of a kind of blower motor and the control method of a kind of air-conditioning |
| CN107101234A (en) * | 2017-04-24 | 2017-08-29 | 广东万家乐燃气具有限公司 | A kind of adaptive Wind-Pressure Resistance system of range hood |
| CN112066430A (en) * | 2020-07-28 | 2020-12-11 | 青岛海尔智慧厨房电器有限公司 | Range hood control method and device, readable storage medium and range hood |
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| US20070200517A1 (en) * | 2005-12-01 | 2007-08-30 | Zippy Technology Corp. | Air fan rotation speed control method and structure thereof |
| CN201032217Y (en) * | 2007-04-28 | 2008-03-05 | 伊莱克斯(杭州)家用电器有限公司 | Cooker hood |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106152385A (en) * | 2015-04-10 | 2016-11-23 | 中山大洋电机股份有限公司 | The control method of a kind of blower motor and the control method of a kind of air-conditioning |
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| CN107101234A (en) * | 2017-04-24 | 2017-08-29 | 广东万家乐燃气具有限公司 | A kind of adaptive Wind-Pressure Resistance system of range hood |
| CN112066430A (en) * | 2020-07-28 | 2020-12-11 | 青岛海尔智慧厨房电器有限公司 | Range hood control method and device, readable storage medium and range hood |
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| CN103968436B (en) | 2017-07-04 |
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