WO2018147256A1 - Moteur à courant continu sans balais - Google Patents

Moteur à courant continu sans balais Download PDF

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Publication number
WO2018147256A1
WO2018147256A1 PCT/JP2018/003940 JP2018003940W WO2018147256A1 WO 2018147256 A1 WO2018147256 A1 WO 2018147256A1 JP 2018003940 W JP2018003940 W JP 2018003940W WO 2018147256 A1 WO2018147256 A1 WO 2018147256A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
motor
brushless
duty
speed instruction
Prior art date
Application number
PCT/JP2018/003940
Other languages
English (en)
Japanese (ja)
Inventor
章行 田原
Original Assignee
パナソニックＩｐマネジメント株式会社
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 パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2018147256A1 publication Critical patent/WO2018147256A1/fr

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Classifications

    • 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
    • H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
    • 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/60—Controlling or determining the temperature of the motor or of the drive
    • H02P29/68—Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component
    • 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
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position

Definitions

  • the speed indicating means 107 and the overcurrent detecting means 108 are connected to the switching element on / off signal generating means 105.
  • the overcurrent detection means 108 compares the voltage generated when the motor current flowing through the windings U, V, and W flows through the current detection resistor 110 with the reference voltage 111 by the comparator 112.
  • the comparator 112 outputs a signal for turning off the transistors Q1 to Q6 to the switching element on / off signal generating means 105 when the voltage generated in the current detection resistor 110 is larger than Vref which is the reference voltage 111.
  • the switching element on / off signal generation means 105 receives the signal input from the comparator 112 and turns off the transistors Q1 to Q6 via the drive means 106.
  • a brushless DC motor includes a stator having three-phase windings, a magnet rotor that rotates by supplying power to the stator, a magnet rotor, A position detection unit that detects a positional relationship with the winding, a speed instruction unit that outputs a voltage corresponding to the rotation speed of the magnet rotor as a speed instruction signal, and a plurality of switching elements, which are connected to the stator.
  • the temperature-sensitive resistance element detects the temperature rise of the motor driver IC through the connection terminal for connecting the motor driver IC to the substrate, and increases the resistance value.
  • the voltage as the speed instruction signal is reduced, and the duty of the voltage applied to the stator winding is suppressed.
  • the temperature rise of the stator winding can be suppressed without special temperature determination means. Therefore, there is an effect that a small brushless DC motor with high reliability and low cost is realized.
  • the temperature-sensitive resistance element is arranged on the back surface of the surface on which the motor driver IC is disposed, and is connected to the solder connection portion through a through hole provided in the substrate in the vicinity of the solder connection portion of the motor driver IC. May be.
  • the temperature sensitive resistance element may be a surface mount component.
  • the temperature-sensitive resistance element used as a surface-mounted component is small, it can be easily placed close to the solder connection part of the motor driver IC, contributing to the miniaturization of the board.
  • the inverter circuit 8 has a three-phase bridge structure, and the switching elements Q1, Q2, and Q3 constituting the three-phase bridge constitute upper arm switching elements of the windings U, V, and W, respectively. Similarly, the switching elements Q4, Q5, Q6 constitute lower arm switching elements of the windings U, V, W, respectively. As shown in FIG. 2, the connection points of the switching element Q1 and the switching element Q4, the switching element Q2 and the switching element Q5, the switching element Q3 and the switching element Q6, and the windings U, V, and W are connected.
  • FIG. 4 is a connection diagram when the motor driver IC and the temperature-sensitive resistance element are connected through a through hole. As shown in FIG. 4, when the temperature-sensitive resistance element 12 is provided on a surface different from the connection surface of the motor driver IC 16, that is, on the back surface of the printed board, the connection is made as shown in FIG.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne un moteur à courant continu sans balais comprenant : un stator ; un rotor à aimants ; une unité de détection de position destinée à détecter la relation de position entre le rotor à aimants et des enroulements ; une unité d'instruction de vitesse destinée à délivrer une tension en fonction de la vitesse de rotation du rotor à aimants ; un CI d'attaque de moteur (16) conçu de manière à intégrer les éléments suivants : un circuit onduleur (8) qui comprend un élément de commutation et est connecté au stator, une unité de détermination de service (10) qui détermine le service d'une tension appliquée communiquée au stator sur la base d'un signal d'instruction de vitesse provenant de l'unité d'instruction de vitesse, et une unité de commande d'entraînement (11) qui, sur la base de la relation de position détectée par l'unité de détection de position, et du service déterminé par l'unité de détermination de service, délivre de manière distributive un signal de service à l'élément de commutation du circuit onduleur ; et un élément de résistance thermosensible (12) qui abaisse la tension servant de signal d'instruction de vitesse communiqué à l'unité de détermination de service (10) à partir de l'unité d'instruction de vitesse, un tel abaissement étant exécuté par détection de la température d'une section de connexion par brasure (23) du CI d'attaque de moteur (16), puis par augmentation de la résistance en fonction d'une élévation de température.
PCT/JP2018/003940 2017-02-08 2018-02-06 Moteur à courant continu sans balais WO2018147256A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017020858A JP2018129922A (ja) 2017-02-08 2017-02-08 ブラシレスｄｃモータ
JP2017-020858 2017-02-08

Publications (1)

Publication Number Publication Date
WO2018147256A1 true WO2018147256A1 (fr) 2018-08-16

Family

ID=63107509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/003940 WO2018147256A1 (fr) 2017-02-08 2018-02-06 Moteur à courant continu sans balais

Country Status (2)

Country Link
JP (1) JP2018129922A (fr)
WO (1) WO2018147256A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037316A (en) * 1974-09-23 1977-07-26 General Electric Company Method of assembling temperature responsive resistance member
JP2002124618A (ja) * 2000-10-18 2002-04-26 Unisia Jecs Corp 半導体装置
WO2011099258A1 (fr) * 2010-02-10 2011-08-18 パナソニック株式会社 Dispositif de commande de moteur sans balais, moteur sans balais et climatiseur
WO2015107596A1 (fr) * 2014-01-14 2015-07-23 パナソニックＩｐマネジメント株式会社 Dispositif de pilotage de moteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037316A (en) * 1974-09-23 1977-07-26 General Electric Company Method of assembling temperature responsive resistance member
JP2002124618A (ja) * 2000-10-18 2002-04-26 Unisia Jecs Corp 半導体装置
WO2011099258A1 (fr) * 2010-02-10 2011-08-18 パナソニック株式会社 Dispositif de commande de moteur sans balais, moteur sans balais et climatiseur
WO2015107596A1 (fr) * 2014-01-14 2015-07-23 パナソニックＩｐマネジメント株式会社 Dispositif de pilotage de moteur

Also Published As

Publication number Publication date
JP2018129922A (ja) 2018-08-16

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