CN109945452A - Blower and its control method, the air-conditioning of constant wind quantity - Google Patents
Blower and its control method, the air-conditioning of constant wind quantity Download PDFInfo
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- CN109945452A CN109945452A CN201910228669.9A CN201910228669A CN109945452A CN 109945452 A CN109945452 A CN 109945452A CN 201910228669 A CN201910228669 A CN 201910228669A CN 109945452 A CN109945452 A CN 109945452A
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- blower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a kind of blower of constant wind quantity and its control methods, air-conditioning, wherein the blower uses alternating current generator, the control method includes: the current static pressure of detection blower fan, and finds the corresponding rotating speed of target of current static pressure according to the corresponding permanent generator volume curve of blower；Judge the close gear of the rotating speed of target；Blower is adjusted to the gear；The current rotating speed of detection blower fan adjusts the current rotating speed of blower according to the rotating speed of target.Not only Expenses Cost is low by the present invention, and can effectively solve the problems, such as that air-conditioning air volume is decayed, and improves the comfort of air-conditioning.
Description
Technical field
The present invention relates to the control methods of blower, blower, and have used the air-conditioning of the blower.
Background technique
With the development of air-conditioning technical, comfort air conditioning system system gradually replaces head of traditional ventilation equipment as people
Choosing will cause air-conditioning air volume decaying since sundries enters in air-conditioning with the use of air-conditioning.
To solve these problems, each producer actively carries out the research of constant air capacity control.Currently used control method
It is using air velocity transducer real-time monitoring wind speed and then to adjust motor speed.For example, patent publication No. is 102748843 A of CN
Existing patent in disclose air duct type air conditioning indoor machine permanent wind amount control system and method, the prior art is exactly to use direct current
Motor, then using Rotating speed measring module real-time detection revolving speed and then to adjust the revolving speed of direct current generator.However, direct current generator
Higher cost, control precision is poor, and sensor cost and mounting cost used in Rotating speed measring module are also relatively high.
Summary of the invention
In order to solve the technical issues of permanent air quantity blower fan is using direct current generator higher cost in the prior art, the present invention is proposed
The blower and its control method, air-conditioning of a kind of constant wind quantity.
The control method of blower proposed by the invention, the blower use alternating current generator, and the control method includes:
The current static pressure of detection blower fan, and the corresponding rotating speed of target of current static pressure is found according to the corresponding permanent generator volume curve of blower；
Judge the close gear of the rotating speed of target；
Blower is adjusted to the gear；
The current rotating speed of detection blower fan adjusts the current rotating speed of blower according to the rotating speed of target.
When it is implemented, the current rotating speed of blower can be adjusted by adjusting the duty ratio of the alternating current generator.
In one embodiment, the duty ratio of the alternating current generator is calculated by a*I or b*T, and described a, b are normal
Number, I are the electric current of the alternating current generator, and T is the torque of the alternating current generator.
Specifically, the current rotating speed for adjusting blower according to the rotating speed of target specifically: by the current rotating speed of blower
It is adjusted to and is equal to the rotating speed of target, or the current rotating speed of blower is adjusted within the scope of rotating speed of target.The rotating speed of target
The minimum value of range is that the rotating speed of target subtracts preset threshold, and maximum value is that the rotating speed of target adds the preset threshold.
Preferably, the initial speed when blower starts is that any point static pressure on the permanent generator volume curve is corresponding
Rotating speed of target.
Preferably, the static pressure of the blower and corresponding rotating speed of target when the permanent generator volume curve be arrival nominal air delivery
Relation curve.
In a specific embodiment, one of them in the fan blade and shell of the blower is equipped with sender unit,
Another corresponding position is equipped with signal receiving device, and the current rotating speed of the blower by calculating institute within a certain period of time
Sender unit is stated by the number of the signal receiving device to be calculated.
Preferably, the sender unit and signal receiving device are respectively that light source emitter and light source receive dress
It sets.
In a specific embodiment, the static pressure can be detected by static pressure transducer.In another embodiment, may be used
To detect the static pressure by blast switch.
Preferably oh, the blower uses centrifugation blade.
Blower proposed by the present invention is controlled using the control method in above-mentioned technical proposal.
Air-conditioning proposed by the present invention includes above-mentioned blower.In a specific embodiment, the air-conditioning is air-cooled ducted air conditioner.
The present invention controls the rotating speed of target of alternating current generator by static pressure, and increases gear in this process and adjust, no
Only can achieve and accurately and fast realize permanent wind amount purpose, increase the comfort of air-conditioning, spent cost also accordingly compared with
It is low.
Detailed description of the invention
Below with reference to embodiment and attached drawing, the present invention is described in detail, in which:
Fig. 1 is the schematic view of the mounting position of light source emitter of the present invention.
Fig. 2 is the schematic view of the mounting position of light source receiving device of the present invention.
Fig. 3 is flow chart of the method for the present invention.
Specific embodiment
The principle and embodiment that the invention will now be described in detail with reference to the accompanying drawings.
For the blower and its control method that the present invention has constant wind quantity mainly on air-conditioning, the present invention will be with air-cooled ducted air conditioner
It is illustrated as a specific embodiment.
The blower of air-cooled ducted air conditioner of the invention uses centrifugation blade 2 and alternating current generator 1, is then designed to test alternating current
The device of the current rotating speed of machine.Specifically, devising a sender unit and a signal receiving device to test exchange
The current rotating speed n1 of motor, the sender unit and signal receiving device can using lower-cost light source emitter and
Light source receiving device.Fig. 1, Fig. 2 shows the installation sites of light source emitter 3 and light source receiving device 4, are centrifuged in air-cooled ducted air conditioner
The inside of fan blade 2 is packed into light source emitter 3, is packed into light source receiving device 4 in the case inside of air-cooled ducted air conditioner.Alternatively, in air hose
Light source emitter is loaded onto (on periphery) on the outside of machine centrifugation blade, is packed into light source in the housing bottom of air-cooled ducted air conditioner or top and is received
Device.Electric pulse is generated when the light source that light source emitter issues passes through light source receiving device, separated in time is to electric arteries and veins
The quantity of punching is counted, and can converse current rotating speed n1, in above-described embodiment, light source emitter and light source receiving device
Position can also exchange, do not affect the detection to current rotating speed.
The air volume of blower mainly has with the quantity of fan blade, the structure of fan blade, the revolving speed of fan blade and the static pressure in air duct
It closes.After unit sizing, it may be considered that the quantity of fan blade, structure all no longer change.Then only need to control revolving speed, quiet
Press the two variables.Therefore, institute's required airflow, such as one nominal air delivery of setting can be set, it is different by test
The rotating speed of target n for reaching the nominal air delivery under static pressure, the permanent wind amount of correlation is bent between available static pressure and rotating speed of target
Line.For example, the nominal air delivery of haze Fresh air handling units FHG-D1.5A is 150M3/ h, rotating speed of target are exported from 500rpm to 1230rpm
Air quantity is all 150 M3/h.Static pressure when 500rpm is 0Pa, and static pressure when 1230rpm is 150Pa.In order to keep air quantity constant,
Under higher static pressure, revolving speed just must be higher.
As shown in figure 3, an initial speed first can be given according to any point on permanent generator volume curve in blower starting,
Then by the current static pressure of static pressure transducer either blast switch detection blower fan, and according to the corresponding permanent generator volume curve of blower
Find the corresponding rotating speed of target of current static pressure.Since alternating current generator operation is with the operation of some gear fixed rotating speed, in order to make electricity
Machine adjusts the speed quickly and accurately, first judges that rotating speed of target n close to which gear, such as can be set high, medium and low, ultralow four
Then alternating current generator is first transferred to corresponding shelves by gear, then the current rotating speed of detection blower fan, adjusts blower according to rotating speed of target
Current rotating speed.Specifically, the current rotating speed of blower can be adjusted to equal to rotating speed of target, or by the current rotating speed of blower
It is adjusted within the scope of rotating speed of target, the minimum value of rotating speed of target range is that rotating speed of target subtracts preset threshold, and maximum value is target
Revolving speed adds preset threshold.
Due to the speed-regulating signal that duty ratio is alternating current generator, and duty ratio is current related with it, the duty of alternating current generator
Than that can be calculated by a*I or b*T, a, b are constant, can be calculated by experimental data, I is alternating current generator
Electric current, T be alternating current generator torque.That is, can be accounted for by the voltage or electric current of adjusting alternating current generator come adjuster
Empty ratio, thus achieve the purpose that adjust current rotating speed, within the scope of current rotating speed adjusting to rotating speed of target either rotating speed of target,
Then it can export constant air quantity at this time, reach the requirement of permanent wind amount.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (15)
1. a kind of control method of blower, the blower uses alternating current generator, which is characterized in that the control method includes:
The current static pressure of the blower is detected, and the corresponding mesh of current static pressure is found according to the corresponding permanent generator volume curve of the blower
Mark revolving speed；
Judge the close gear of the rotating speed of target；
The blower is adjusted to the gear；
The current rotating speed for detecting the blower adjusts the current rotating speed of blower according to the rotating speed of target.
2. control method as described in claim 1, which is characterized in that adjusted by adjusting the duty ratio of the alternating current generator
The current rotating speed of blower.
3. control method as claimed in claim 2, which is characterized in that the duty ratio of the alternating current generator passes through a*I or b*T
It is calculated, described a, b are constant, and I is the electric current of the alternating current generator, and T is the torque of the alternating current generator.
4. control method as described in claim 1, which is characterized in that described to adjust the current of blower according to the rotating speed of target
Revolving speed specifically: the current rotating speed of the blower is adjusted to equal to the rotating speed of target, or the blower is worked as into forward
Speed is adjusted within the scope of rotating speed of target.
5. control method as claimed in claim 4, which is characterized in that the minimum value of the rotating speed of target range is the target
Revolving speed subtracts preset threshold, and maximum value is that the rotating speed of target adds the preset threshold.
6. control method as described in claim 1, which is characterized in that the initial speed when blower starts is the permanent wind
Measure the corresponding rotating speed of target of any point static pressure on curve.
7. control method as described in claim 1, which is characterized in that described in when the perseverance generator volume curve is arrival nominal air delivery
The relation curve of the static pressure of blower and corresponding rotating speed of target.
8. control method as described in claim 1, which is characterized in that one of installation in the fan blade and shell of the blower
Have sender unit, another corresponding position is equipped with signal receiving device, the current rotating speed of the blower by
The sender unit is calculated in certain time to be calculated by the number of the signal receiving device.
9. control method as claimed in claim 8, which is characterized in that the sender unit and signal receiving device difference
For light source emitter and light source receiving device.
10. control method as described in claim 1, which is characterized in that detect the static pressure by static pressure transducer.
11. control method as described in claim 1, which is characterized in that detect the static pressure by blast switch.
12. control method as described in claim 1, which is characterized in that the blower uses centrifugation blade.
13. a kind of blower, which is characterized in that controlled using the control method as described in claim 1 to 12 any one.
14. a kind of air-conditioning, which is characterized in that including blower as claimed in claim 13.
15. air-conditioning as claimed in claim 14, which is characterized in that the air-conditioning is air-cooled ducted air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910228669.9A CN109945452A (en) | 2019-03-25 | 2019-03-25 | Blower and its control method, the air-conditioning of constant wind quantity |
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| CN201910228669.9A CN109945452A (en) | 2019-03-25 | 2019-03-25 | Blower and its control method, the air-conditioning of constant wind quantity |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630554A (en) * | 2019-10-18 | 2019-12-31 | 峰岹科技（深圳）有限公司 | Stepless constant air volume control method for fan, fan control device and fan |
| CN111431308A (en) * | 2020-03-31 | 2020-07-17 | 浙江江宇电机有限公司 | Simple speed-regulating type outer rotor motor and constant air device with same |
| CN112682845A (en) * | 2020-12-28 | 2021-04-20 | 青岛海信日立空调系统有限公司 | Air conditioner and automatic air volume compensation control method thereof |
| CN112682883A (en) * | 2020-12-29 | 2021-04-20 | 青岛海信日立空调系统有限公司 | Air conditioner and air conditioner constant air volume static pressure self-adaptive control method |
| CN113531655A (en) * | 2020-04-14 | 2021-10-22 | 青岛海信日立空调系统有限公司 | Air duct machine |
| CN115371240A (en) * | 2022-08-23 | 2022-11-22 | 合肥美的暖通设备有限公司 | Air conditioner-based windshield adjusting method and device |
| CN115388516A (en) * | 2022-08-23 | 2022-11-25 | 珠海格力电器股份有限公司 | Fan rotating speed control method, control device and unit |
| CN115930402A (en) * | 2023-01-13 | 2023-04-07 | 南京天加环境科技有限公司 | Control method and device of air conditioner |
| CN115930394A (en) * | 2023-01-13 | 2023-04-07 | 南京天加环境科技有限公司 | Air conditioner control method and device, air conditioner, electronic equipment and storage medium |
| CN116026012A (en) * | 2023-01-13 | 2023-04-28 | 南京天加环境科技有限公司 | Control method and device of air conditioning unit and air conditioning unit |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630554A (en) * | 2019-10-18 | 2019-12-31 | 峰岹科技（深圳）有限公司 | Stepless constant air volume control method for fan, fan control device and fan |
| CN110630554B (en) * | 2019-10-18 | 2021-06-29 | 峰岹科技(深圳)股份有限公司 | Stepless constant air volume control method for fan, fan control device and fan |
| CN111431308A (en) * | 2020-03-31 | 2020-07-17 | 浙江江宇电机有限公司 | Simple speed-regulating type outer rotor motor and constant air device with same |
| CN113531655A (en) * | 2020-04-14 | 2021-10-22 | 青岛海信日立空调系统有限公司 | Air duct machine |
| CN112682845A (en) * | 2020-12-28 | 2021-04-20 | 青岛海信日立空调系统有限公司 | Air conditioner and automatic air volume compensation control method thereof |
| CN112682883A (en) * | 2020-12-29 | 2021-04-20 | 青岛海信日立空调系统有限公司 | Air conditioner and air conditioner constant air volume static pressure self-adaptive control method |
| CN112682883B (en) * | 2020-12-29 | 2023-11-28 | 青岛海信日立空调系统有限公司 | Air conditioner and air conditioner constant air volume static pressure self-adaptive control method |
| CN115371240A (en) * | 2022-08-23 | 2022-11-22 | 合肥美的暖通设备有限公司 | Air conditioner-based windshield adjusting method and device |
| CN115388516A (en) * | 2022-08-23 | 2022-11-25 | 珠海格力电器股份有限公司 | Fan rotating speed control method, control device and unit |
| CN115930402A (en) * | 2023-01-13 | 2023-04-07 | 南京天加环境科技有限公司 | Control method and device of air conditioner |
| CN115930394A (en) * | 2023-01-13 | 2023-04-07 | 南京天加环境科技有限公司 | Air conditioner control method and device, air conditioner, electronic equipment and storage medium |
| CN116026012A (en) * | 2023-01-13 | 2023-04-28 | 南京天加环境科技有限公司 | Control method and device of air conditioning unit and air conditioning unit |
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Application publication date: 20190628 |
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