CN103023427A - Driver and variable-frequency motor integrated driving system - Google Patents

Driver and variable-frequency motor integrated driving system Download PDF

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Publication number
CN103023427A
CN103023427A CN2012105774847A CN201210577484A CN103023427A CN 103023427 A CN103023427 A CN 103023427A CN 2012105774847 A CN2012105774847 A CN 2012105774847A CN 201210577484 A CN201210577484 A CN 201210577484A CN 103023427 A CN103023427 A CN 103023427A
Authority
CN
China
Prior art keywords
driver
variable
frequency motor
control unit
main control
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.)
Pending
Application number
CN2012105774847A
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Chinese (zh)
Inventor
金友华
杨宇澄
叶海波
金乃庆
毕飞龙
廖礼军
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.)
Whirlpool China Co Ltd
Original Assignee
Hefei Rongshida Sanyo Electric 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 Hefei Rongshida Sanyo Electric Co Ltd filed Critical Hefei Rongshida Sanyo Electric Co Ltd
Priority to CN2012105774847A priority Critical patent/CN103023427A/en
Publication of CN103023427A publication Critical patent/CN103023427A/en
Pending legal-status Critical Current

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Abstract

The invention provides a driver and variable-frequency motor integrated driving system comprising a power source and a single-chip microcomputer. The single-chip microcomputer and the driver are connected interactively, and the driver is fixedly arranged between a rotor and an end cap of a variable-frequency motor and is electrically connected with the rotor through a three-phase wire. The driver comprises a master control unit, a driving module, a power source circuit and a Hall switch, wherein the master control unit is interactively connected with the single-chip microcomputer and the driving module, and an output end of the Hall switch is connected with an input end of the master control unit. The driver is fixedly mounted between the rotor and the end cap of the variable-frequency motor, and the three-phase wire of the rotor of the motor can be directly connected on the driver, so that the three-phase wire is short and consumption and interference of wire harnesses are reduced. The driver is communicated with the power source through a first communication wire harness and a second communication wire harness, receives work commands of the variable-frequency motor and feeds back work information of the variable-frequency motor.

Description

The integrated drive system of a kind of driver and variable-frequency motor
Technical field
The present invention relates to the washing machine technical field, be specifically related to the integrated drive system of a kind of driver and variable-frequency motor.
 
Background technology
Variable-frequency motor adopts the AC speed-regulating mode of " special-purpose variable frequency induction motor+frequency converter ", makes mechanical automation degree and production efficiency greatly improve device miniaturization, increases comfortableness, is just replacing traditional mechanical speed governors and DC speed regulation scheme at present.
Washing machine mainly adopts variable-frequency motor as actuating force at present, its variable-frequency motor is to adopt independently motor driver to cooperate motor to use, the general independent configuration of this activation configuration or be integrated on the circuit board with the driver external circuit, be installed on again outside motor, motor is drawn very long three-phase wire harness again and is connected with driver, and is last whole by being mechanically anchored on the casing of washing machine.But because driver and motor connecting wire bundle are long, the wire harness loss is large, and hall signal is interfered easily, and mounting structure is complicated, and cost is high, and is particularly evident in the washing machine exposure of low capacity.
Summary of the invention
In order to overcome deficiency of the prior art, the invention provides a kind of install simple, that loss is low, reliability is strong driver and variable-frequency motor Allinone Driving System.
In order to reach above-mentioned effect, the invention provides the integrated drive system of a kind of driver and variable-frequency motor, comprise power supply and single-chip microcomputer, described single-chip microcomputer is connected with driver is interactive, driver is fixedly arranged between the rotor and end cap of variable-frequency motor, is electrically connected by triple line between driver and the rotor; Described driver comprises main control unit, driver module, power circuit and Hall switch, described rotor is electrically connected with driver module by triple line, main control unit is connected with single-chip microcomputer, driver module interactive mode respectively, and the output of Hall switch is connected with the input of main control unit.
Described single-chip microcomputer is connected with described main control unit is interactive by the first communication wire harness, the input of described the first communication wire harness is connected with the output of described power supply, the output of the first communication wire harness is connected with the input of described power circuit, and the output of power circuit is connected with the input of main control unit, driver module respectively.
Described driver module is connected with described power supply by the second communication wire harness, and power supply provides direct current 310V working power after the rectification to the driver module in the driver, in order to drive variable-frequency motor work.
Described power circuit is provided with voltage stabilizing didoe and filter capacitor.
Main control unit among the present invention in the driver carries out communication by the single-chip microcomputer of the first communication wire harness and washing machine, receives and feed back the operation information of variable-frequency motor; Driver module connects main control unit and variable-frequency motor, and its 3 groups of built-in IGBT drive the variable-frequency motor running according to the control signal of main control unit; Power circuit after interference signal on voltage stabilizing didoe (D1) voltage stabilizing, filter capacitor (C1) filter out power, provides the working power of direct current 15V for main control unit and driver module the power supply of outside; Hall switch is used for gathering the variable-frequency motor rate signal, feeds back to main control unit, and main control unit feeds back to the speed that single-chip microcomputer is judged variable-frequency motor by the first communication wire harness again.
The washing machine operation principle is as follows:
After washing machine started, power supply provided direct current 310V power supply and direct current 15V power supply for respectively the driver of being located at variable-frequency motor inside by the first communication wire harness and second communication wire harness, and the main control unit in single-chip microcomputer and the driver carries out communication simultaneously.After the guidance panel input start signal of washing machine, the main control unit of single-chip microcomputer and driver carries out communication, and working signal is sent to main control unit, and main control unit sends to driver module with signal, and driver module drives the variable-frequency motor entry into service; In variable-frequency motor when running,, Hall switch is in continuous switch conduction state, produces sine wave signal alternately according to the conversion in magnetic field, with this signal feedback to main control unit, in order to judge the speed of variable-frequency motor.
For example, single-chip microcomputer sends the information of " counter-rotating; 700 rev/mins of rotating speeds " to the main control unit of driver, then by the conversion of internal information, the control driver module drives variable-frequency motor and turns round by this requirement main control unit, during the variable-frequency motor running, conversion occurs in magnetic field, Hall switch produces sine wave signal alternately according to the conversion in magnetic field, and with this signal feedback to main control unit, main control unit sends the speed that single-chip microcomputer is judged variable-frequency motor again to.
Because driver is fixedly mounted between the rotor and end cap of variable-frequency motor, then the triple line of rotor can be directly connected on the driver.Triple line is very short like this, has reduced wire harness loss and interference.Driver is communicated by letter with power supply with the second communication wire harness by the first communication wire harness, receives the variable-frequency motor work order, the job information of feedback variable-frequency motor.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is structure cutaway view of the present invention;
Fig. 2 is circuit diagram of the present invention;
Fig. 3 is washing machine operation principle block diagram;
Among the figure: 1-variable-frequency motor, 11-end cap, 12-rotor, 2-driver, 21-power circuit, the 22-main control unit, 23-driver module, 24-Hall switch, 3-triple line, the 4-wire harness of communicating by letter, 41-the first communication wire harness, 42-second communication wire harness, 5-single-chip microcomputer, 6-guidance panel, 7-power supply.
 
Embodiment
As shown in Figure 1, driver 2 is fixedly arranged between the rotor 12 and end cap 11 of variable-frequency motor 1, is electrically connected by triple line 3 between driver 2 and the rotor 12; Driver 2 is connected with power supply with single-chip microcomputer respectively by communication wire harness 4.
Shown in Fig. 2,3, the integrated drive system of a kind of driver and variable-frequency motor comprises power supply 7, guidance panel 6 and single-chip microcomputer 5, described single-chip microcomputer 5 and 2 interactive connections of driver, and driver 2 is fixedly arranged between the rotor and end cap of variable-frequency motor 1; Described driver 2 comprises main control unit 22, driver module 23, power circuit 21 and Hall switch 24, described rotor is electrically connected with driver module 23 by triple line, main control unit 22 is connected with single-chip microcomputer 5, driver module 23 interactive modes respectively, and the output of Hall switch 24 is connected with the input of main control unit 22.Described single-chip microcomputer 5 is by the first communication wire harness 41 and 22 interactive connections of main control unit, the input of the first communication wire harness 41 is connected with the output of power supply 7, the output of the first communication wire harness 41 is connected with the input of power circuit 21, and the output of power circuit 21 is connected with the input of main control unit 22, driver module 23 respectively.Power circuit is provided with voltage stabilizing didoe and filter capacitor, after power supply is carried out step-down and removes interference signal, the working power of direct current 15V is provided for main control unit and driver module.Described driver module 23 is connected with described power supply 7 by second communication wire harness 42, and power supply 7 is given the direct current 310V working power after the driver module 23 in the driver provides rectification, in order to drive variable-frequency motor 1 work.
After washing machine started, power supply 7 provided direct current 310V power supply and direct current 15V power supply for respectively the driver 2 of being located at variable-frequency motor 1 inside by the first communication wire harness 41 and second communication wire harness 42.After the guidance panel 6 input start signal, single-chip microcomputer 5 carries out communication with the main control unit 22 of driver 2, and working signal is sent to main control unit 22, and main control unit 22 sends to driver module 23 with signal, and driver module 23 drives variable-frequency motor 1 entry into service; During variable-frequency motor 1 running, Hall switch 24 is in continuous switch conduction state, conversion according to magnetic field produces sine wave signal alternately, and to main control unit 22, main control unit 22 feeds back to the speed that single-chip microcomputer 5 is judged variable-frequency motor 1 by the first communication wire harness 41 again with this signal feedback.
Above embodiment is not limited only to protection scope of the present invention, all make amendment based on basic thought of the present invention or change all belong to protection scope of the present invention.

Claims (4)

1. a driver and the integrated drive system of variable-frequency motor, comprise power supply and single-chip microcomputer, it is characterized in that: described single-chip microcomputer and driver are interactive to be connected, and driver is fixedly arranged between the rotor and end cap of variable-frequency motor, is electrically connected by triple line between driver and the rotor; Described driver comprises main control unit, driver module, power circuit and Hall switch, described rotor is electrically connected with driver module by triple line, main control unit is connected with single-chip microcomputer, driver module interactive mode respectively, and the output of Hall switch is connected with the input of main control unit.
2. the integrated drive system of driver according to claim 1 and variable-frequency motor, it is characterized in that: described single-chip microcomputer is connected with described main control unit is interactive by the first communication wire harness, the input of described the first communication wire harness is connected with the output of described power supply, the output of the first communication wire harness is connected with the input of described power circuit, and the output of power circuit is connected with the input of main control unit, driver module respectively.
3. the integrated drive system of driver according to claim 1 and variable-frequency motor is characterized in that: described driver module is connected with described power supply by the second communication wire harness.
4. the integrated drive system of driver according to claim 1 and variable-frequency motor, it is characterized in that: described power circuit is provided with voltage stabilizing didoe and filter capacitor.
CN2012105774847A 2012-12-27 2012-12-27 Driver and variable-frequency motor integrated driving system Pending CN103023427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012105774847A CN103023427A (en) 2012-12-27 2012-12-27 Driver and variable-frequency motor integrated driving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012105774847A CN103023427A (en) 2012-12-27 2012-12-27 Driver and variable-frequency motor integrated driving system

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CN103023427A true CN103023427A (en) 2013-04-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026848A (en) * 2016-07-07 2016-10-12 姜德志 Washing machine control board with variable frequency motor driving function
WO2021253204A1 (en) * 2020-06-16 2021-12-23 江苏新安电器股份有限公司 Novel driver for variable frequency motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106419A (en) * 1976-03-03 1977-09-07 Hitachi Ltd Variable frequency controller of single phase induction motor
CN2938544Y (en) * 2006-04-14 2007-08-22 宁波菲仕电机技术有限公司 Integral electric machine
CN102677427A (en) * 2012-05-24 2012-09-19 常州至精精机有限公司 Washing machine driver
CN102820847A (en) * 2012-08-08 2012-12-12 慈溪市顺达实业有限公司 Control communication device and method suitable for variable-frequency motor
CN203104359U (en) * 2012-12-27 2013-07-31 合肥荣事达三洋电器股份有限公司 Driver and variable-frequency motor integrated driving system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106419A (en) * 1976-03-03 1977-09-07 Hitachi Ltd Variable frequency controller of single phase induction motor
CN2938544Y (en) * 2006-04-14 2007-08-22 宁波菲仕电机技术有限公司 Integral electric machine
CN102677427A (en) * 2012-05-24 2012-09-19 常州至精精机有限公司 Washing machine driver
CN102820847A (en) * 2012-08-08 2012-12-12 慈溪市顺达实业有限公司 Control communication device and method suitable for variable-frequency motor
CN203104359U (en) * 2012-12-27 2013-07-31 合肥荣事达三洋电器股份有限公司 Driver and variable-frequency motor integrated driving system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026848A (en) * 2016-07-07 2016-10-12 姜德志 Washing machine control board with variable frequency motor driving function
WO2021253204A1 (en) * 2020-06-16 2021-12-23 江苏新安电器股份有限公司 Novel driver for variable frequency motor

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Application publication date: 20130403