US20140328705A1 - Induced draft fan - Google Patents

Induced draft fan Download PDF

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Publication number
US20140328705A1
US20140328705A1 US14/332,361 US201414332361A US2014328705A1 US 20140328705 A1 US20140328705 A1 US 20140328705A1 US 201414332361 A US201414332361 A US 201414332361A US 2014328705 A1 US2014328705 A1 US 2014328705A1
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US
United States
Prior art keywords
microprocessor
unit
motor
gear switch
induced draft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/332,361
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English (en)
Inventor
Chuping LU
Yong Zhao
Xiongcheng WANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Broad Ocean Motor Co Ltd
Original Assignee
Zhongshan Broad Ocean Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongshan Broad Ocean Motor Co Ltd filed Critical Zhongshan Broad Ocean Motor Co Ltd
Assigned to ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD. reassignment ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LU, CHUPING, WANG, XIONGCHENG, ZHAO, YONG
Publication of US20140328705A1 publication Critical patent/US20140328705A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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

Definitions

  • the invention relates to an induced draft fan.
  • a typical induced draft fan as shown in FIG. 1 , is generally driven by a single phase motor PSC, and the single phase motor PSC is controlled by a system controller via a plurality of gear switch signals output therefrom.
  • the single phase AC motor has low efficiency, relatively high energy consumption, large noise, and low controllability.
  • the technical scheme has poor compatibility, and different application loads demand different compatible motors, thereby resulting in long development cycle, high management costs, poor versatility, and inconvenience in use.
  • An electronically commutated motor including a DC brushless motor, a switched reluctance motor, and PMSM, is advantageous in energy saving, intelligence, high stability and controllability, and small noise. It is capable of regulating the output torque and the air volume, thereby shortening the development time and saving the development costs.
  • an induced draft fan comprising: a fan housing, the fan housing comprising a surface; a wind wheel; and an ECM motor, the ECM motor comprising a motor body and a motor controller.
  • the motor body comprises: a stator, a rotor, and a casing.
  • the stator comprises a coil winding.
  • the rotor comprises a rotor shaft comprising an end.
  • the motor controller is a control board that is not enclosed in a control box (control box-free control board).
  • the control board comprises: a microprocessor unit comprising an input end, an IGBT switch and a drive unit thereof comprising an output end, a detection unit for detecting operating parameters of the motor, and a DIP switch unit comprising an output end.
  • the wind wheel is disposed inside the fan housing.
  • the ECM motor is disposed on the surface of the fan housing. The end of the rotor shaft of the rotor protrudes inside the fan housing and is connected to the wind wheel.
  • the motor body is connected to the motor controller via an electric wire.
  • the detection unit transmits operating parameters of the motor to the microprocessor unit.
  • the microprocessor unit outputs a signal to control the IGBT switch and the drive unit thereof.
  • the output end of the IGBT switch and the drive unit thereof is connected to the coil winding of the stator.
  • the output end of the DIP switch unit is connected to the input end of the microprocessor unit.
  • the DIP switch unit comprises a plurality of independent DIP switches.
  • a number of the DIP switches is between seven and twelve.
  • the microprocessor unit reads a signal of each DIP switch of the DIP switch unit to form a code set, selects parameters of a rotational speed, a torque, and an air volume, and outputs a signal to control the IGBT switch and the drive unit thereof.
  • control board further comprises a gear switch detection circuit.
  • the gear switch detection circuit detects a plurality of gear switch signals output by a system controller and transmits the gear switch signals to the microprocessor.
  • the microprocessor outputs a signal to control the IGBT switch and the drive unit thereof according to the gear switch signals.
  • the gear switch detection circuit comprises a plurality of optical coupling isolation circuits.
  • the microprocessor unit is connected to a communication port.
  • the microprocessor unit communicates with a PC computer via the communication port.
  • the PC computer sets or modifies the operating parameters of the motor in the microprocessor by programming.
  • the motor controller herein is a control board that is not enclosed in a control box.
  • the control board is provided with the microprocessor unit, the IGBT switch and the drive unit thereof, and the detection unit for detecting operating parameters of the motor.
  • the control board is further provided with the DIP switch unit, the output end of which is connected to the input end of the microprocessor unit.
  • the microprocessor unit reads information of each DIP switch of the DIP switch unit to form the code set, selects parameters of the rotational speed, the torque, and the air volume, and outputs signals to control the IGBT switch and the drive unit thereof.
  • the DIP switch unit comprises a plurality of independent DIP switches.
  • the number of the DIP switches is between seven and fifteen, so that relatively broad information is obtained from the code sets, thereby meeting the demands of the user.
  • the control board is further provided with the gear switch detection circuit that detects the gear switch signals of the system controller and sends them to the microprocessor unit.
  • the microprocessor unit outputs the signal to control the IGBT switch and the drive unit thereof according to the gear switch signals, and is capable of communicating with the system controller and broadening the application range thereof.
  • the microprocessor unit is connected to the communication port.
  • the microprocessor unit communicates with the PC computer via the communication port.
  • the PC computer sets or regulates the operating parameters of the motor in the microprocessor unit by programming, thereby being convenient for debugging the induced draft fan.
  • FIG. 1 is a schematic diagram of a conventional induced draft fan
  • FIG. 2 is a structure diagram of an induced draft fan according to one embodiment of the invention.
  • FIG. 3 is a cross sectional view of an induced draft fan according to one embodiment of the invention.
  • FIG. 4 is a schematic diagram of an induced draft fan according to one embodiment of the invention.
  • FIG. 5 is a specific circuit block diagram of FIG. 4 .
  • an induced draft fan comprises: a fan housing 1 , a wind wheel 2 disposed inside the fan housing 1 , and an ECM motor disposed on a surface of the fan housing 1 .
  • the ECM motor comprises a motor body 3 and a motor controller.
  • the motor body comprises: a stator 31 , a rotor 32 , and a casing 33 .
  • An end 320 of a rotor shaft of the rotor 32 protrudes inside the fan housing 1 and is connected to the wind wheel 2 .
  • the motor body is connected to the motor controller via an electric wire 5 .
  • the motor controller is a control board 4 that is not enclosed in a control box.
  • the control board 4 comprises: a microprocessor unit, an IGBT switch and a drive unit thereof, and a detection unit for detecting operation parameters of the motor.
  • the detection unit transmits the operating parameters of the motor to the microprocessor unit, and the microprocessor unit outputs a signal to control the IGBT switch and the drive unit thereof.
  • An output end of the IGBT switch and the drive unit thereof is connected to a coil winding of the stator.
  • the control board 4 is further provided with a DIP switch unit 6 .
  • An output end of the DIP switch unit 6 is connected to an input end of the microprocessor unit.
  • the DIP switch unit 6 comprises a plurality of DIP switches, and a number of the DIP switches is between seven and fifteen.
  • the microprocessor unit reads a signal of each DIP switch of the DIP switch unit to form a code set, selects parameters of a rotational speed, a torque, and an air volume, and outputs a signal to control the IGBT switch and the drive unit thereof.
  • the microprocessor unit is a micro controller unit (MCU) or a digital signal processor (DSP).
  • the control board 4 further comprises a gear switch detection circuit.
  • the gear switch detection circuit detects a plurality of gear switch signals output by a system controller and sends the gear switch signals to the microprocessor.
  • the microprocessor outputs a signal according to the gear switch signal to control the IGBT switch and the drive unit thereof.
  • the gear switch detection circuit comprises a plurality of optical coupling isolation circuits.
  • the microprocessor unit is connected to a communication port.
  • the microprocessor unit communicates with a PC computer via the communication port.
  • the PC computer sets or modifies the operating parameters of the motor in the microprocessor unit by programming.
  • the DIP switch unit 6 comprises nine DIP switches.
  • the microprocessor unit reads the information of each DIP switch of the DIP switch unit.
  • the coding 001001111 means that the motor operates at a constant rotational speed of 1000 rpm.
  • the microprocessor outputs a corresponding signal to control the IGBT switch and the drive unit thereof.
  • the DIP switch unit 6 comprises nine DIP switches.
  • the microprocessor unit reads the information of each DIP switch of the DIP switch unit.
  • the coding 101011100 means that the motor operates at a constant torque of 400 N.m.
  • the microprocessor outputs a corresponding signal to control the IGBT switch and the drive unit thereof.
  • the DIP switch unit 6 comprises nine DIP switches.
  • the microprocessor unit reads the information of each DIP switch of the DIP switch unit.
  • the coding 110011001 means that the motor operates at a constant air volume.
  • a torque is 600 N m, and a rotational speed is 800 rpm.
  • the microprocessor outputs a corresponding signal to control the IGBT switch and the drive unit thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Electric Motors In General (AREA)
US14/332,361 2012-06-30 2014-07-15 Induced draft fan Abandoned US20140328705A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201220315968XU CN202833210U (zh) 2012-06-30 2012-06-30 一种直流电机驱动的引风机
CN201220315968.X 2012-06-30
PCT/CN2013/073176 WO2014000480A1 (fr) 2012-06-30 2013-03-26 Ventilateur entraîné par moteur cc

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/073176 Continuation-In-Part WO2014000480A1 (fr) 2012-06-30 2013-03-26 Ventilateur entraîné par moteur cc

Publications (1)

Publication Number Publication Date
US20140328705A1 true US20140328705A1 (en) 2014-11-06

Family

ID=47944930

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/332,361 Abandoned US20140328705A1 (en) 2012-06-30 2014-07-15 Induced draft fan

Country Status (3)

Country Link
US (1) US20140328705A1 (fr)
CN (1) CN202833210U (fr)
WO (1) WO2014000480A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9614468B2 (en) * 2014-04-30 2017-04-04 Zhongshan Broad-Ocean Motor Co., Ltd. Intermediate connecting devices and electronically commutated motors for HVAC systems
FR3062687A1 (fr) * 2017-02-08 2018-08-10 Atlantic Climatisation & Ventilation Systeme de commande d'un moteur de ventilateur
US10469002B2 (en) 2014-12-13 2019-11-05 Zhongshan Broad-Ocean Motor Co., Ltd. Electrically commutated motor and freezer comprising the same
CN111630974A (zh) * 2020-06-30 2020-09-08 广州朵纷服装有限公司 一种新式农业种植催芽机

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104811103B (zh) * 2014-01-23 2017-07-07 中山大洋电机股份有限公司 一种扩展ecm电机转速范围的控制方法
CN106411186B (zh) * 2015-08-13 2018-11-20 中山大洋电机股份有限公司 一种多电机系统及其控制方法和应用其的冰柜及控制方法
CN106194790A (zh) * 2016-07-14 2016-12-07 上海品星防爆电机有限公司 一种鼓风机
CN107420334A (zh) * 2017-06-09 2017-12-01 深圳市盛仕达电子有限公司 一种管道风机的调速控制系统

Citations (8)

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US4012608A (en) * 1974-08-20 1977-03-15 Amp Incorporated Miniature switch with substantial wiping action
US5473229A (en) * 1992-05-27 1995-12-05 General Electric Company Interface between programmable electronically commutated motor and personal computer and method of operation
US6283851B1 (en) * 2000-03-06 2001-09-04 Honeywell International Inc. Make up air equipment control
US20050123423A1 (en) * 2002-03-02 2005-06-09 Michael Weisser Fan having an integrated ip protection
US7545833B2 (en) * 1999-11-17 2009-06-09 Ms Sedco RF door activation system
US7573217B2 (en) * 2005-05-31 2009-08-11 Regal-Beloit Corporation Methods and systems for automatic rotation direction determination of electronically commutated motor
CN201393145Y (zh) * 2009-04-16 2010-01-27 中山大洋电机股份有限公司 一种电机
US7671555B2 (en) * 2005-12-21 2010-03-02 A. O. Smith Corporation Motor, a method of operating a motor, and a system including a motor

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US5893705A (en) * 1996-12-13 1999-04-13 General Electric Company Integrated motor and blower apparatus having two back-to-back coupled rotors
US6456023B1 (en) * 2001-08-08 2002-09-24 General Electric Company Method and apparatus to control a variable speed motor
CN2909694Y (zh) * 2006-02-17 2007-06-06 陈佳宁 具有微处理控制器的汽车发电机电压调节器
CN201301834Y (zh) * 2008-11-27 2009-09-02 中山大洋电机股份有限公司 一种用镀搪瓷表面处理方式制造的引风机系统及其外壳和风轮
CN201656892U (zh) * 2010-05-11 2010-11-24 上海海事大学 一种基于微处理器的小型化串励直流电机控制器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012608A (en) * 1974-08-20 1977-03-15 Amp Incorporated Miniature switch with substantial wiping action
US5473229A (en) * 1992-05-27 1995-12-05 General Electric Company Interface between programmable electronically commutated motor and personal computer and method of operation
US7545833B2 (en) * 1999-11-17 2009-06-09 Ms Sedco RF door activation system
US6283851B1 (en) * 2000-03-06 2001-09-04 Honeywell International Inc. Make up air equipment control
US20050123423A1 (en) * 2002-03-02 2005-06-09 Michael Weisser Fan having an integrated ip protection
US7573217B2 (en) * 2005-05-31 2009-08-11 Regal-Beloit Corporation Methods and systems for automatic rotation direction determination of electronically commutated motor
US7671555B2 (en) * 2005-12-21 2010-03-02 A. O. Smith Corporation Motor, a method of operating a motor, and a system including a motor
CN201393145Y (zh) * 2009-04-16 2010-01-27 中山大洋电机股份有限公司 一种电机

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9614468B2 (en) * 2014-04-30 2017-04-04 Zhongshan Broad-Ocean Motor Co., Ltd. Intermediate connecting devices and electronically commutated motors for HVAC systems
US10469002B2 (en) 2014-12-13 2019-11-05 Zhongshan Broad-Ocean Motor Co., Ltd. Electrically commutated motor and freezer comprising the same
FR3062687A1 (fr) * 2017-02-08 2018-08-10 Atlantic Climatisation & Ventilation Systeme de commande d'un moteur de ventilateur
EP3361103A1 (fr) * 2017-02-08 2018-08-15 Atlantic Climatisation et Ventilation Système de commande d'un moteur de ventilateur
CN111630974A (zh) * 2020-06-30 2020-09-08 广州朵纷服装有限公司 一种新式农业种植催芽机

Also Published As

Publication number Publication date
WO2014000480A1 (fr) 2014-01-03
CN202833210U (zh) 2013-03-27

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LU, CHUPING;ZHAO, YONG;WANG, XIONGCHENG;REEL/FRAME:033318/0305

Effective date: 20140610

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION