WO2011155264A1 - Moteur, et pompe et dispositif de circulation de liquide équipés chacun de ce moteur - Google Patents

Moteur, et pompe et dispositif de circulation de liquide équipés chacun de ce moteur Download PDF

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Publication number
WO2011155264A1
WO2011155264A1 PCT/JP2011/059634 JP2011059634W WO2011155264A1 WO 2011155264 A1 WO2011155264 A1 WO 2011155264A1 JP 2011059634 W JP2011059634 W JP 2011059634W WO 2011155264 A1 WO2011155264 A1 WO 2011155264A1
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WIPO (PCT)
Prior art keywords
motor
control circuit
circuit
external signal
control
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Application number
PCT/JP2011/059634
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English (en)
Japanese (ja)
Inventor
英稔 植田
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パナソニック電工株式会社
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Publication date
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Publication of WO2011155264A1 publication Critical patent/WO2011155264A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/032—Reciprocating, oscillating or vibrating motors

Definitions

  • the present invention relates to a motor, a pump using the motor, and a liquid circulation device.
  • This control circuit consists of a so-called series regulator circuit composed of a Zener diode, control resistor, comparator, transistor, etc., and can control the speed of the fan motor according to the amount of current flowing through the transistor. Yes.
  • the fan motor to be controlled and the control circuit such as the comparator and the transistor are supplied with power from a common power source. For this reason, for example, the fan motor is stopped. The power was supplied to the control circuit even when it was. That is, the control circuit described above cannot reduce standby power because power is consumed by the control circuit even when the fan motor is on standby.
  • a motor drive circuit that supplies a predetermined power stepped down by a switching regulator to a control circuit.
  • the use of a switching regulator increases the circuit scale.
  • a circuit for stopping the switching regulator is separately required, an expensive and complicated circuit configuration is required.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to realize a motor capable of reducing standby power at a low cost with a simple configuration, a pump including the motor, and a liquid circulation. To provide an apparatus.
  • the motor of the present invention includes a motor coil, a motor driving power source configured to supply power to the motor coil, a control circuit configured to control driving of the motor coil, and power from the motor driving power source. And a control power supply circuit configured to supply operating power to the control circuit in response to the supply. The output of the control power supply circuit is turned ON / OFF according to the external signal.
  • the motor includes a first switch, which is provided between the motor driving power supply and the control power supply circuit, and is turned ON / OFF according to an external signal.
  • control power supply circuit includes a series regulator having at least a transistor.
  • the base voltage of the transistor is set to a ground level or a predetermined voltage level according to an external signal.
  • the motor includes a second switch, which is provided between the collector and base of the transistor and is turned on / off in response to an external signal.
  • the motor comprises voltage detection means configured to detect the output voltage of the control power circuit.
  • the control circuit is configured to drive the motor coil when the voltage detected by the voltage detection means exceeds a predetermined reference value.
  • the motor comprises timer means.
  • the control circuit is configured to drive the motor coil when a predetermined time measured by the timer means elapses after an external signal is input.
  • the pump of the present invention includes the motor described above.
  • the liquid circulation device of the present invention includes the pump described above.
  • a motor capable of reducing standby power can be realized with a simple configuration at low cost, and a pump and a liquid circulation device including the motor can be provided.
  • FIG. 1 is a schematic block diagram illustrating an example of a motor according to a first embodiment. It is a schematic block diagram which shows the other example same as the above. It is a schematic block diagram which shows another example same as the above.
  • FIG. 6 is a schematic block diagram illustrating an example of a motor according to a second embodiment. It is a schematic block diagram which shows the other example same as the above. It is a schematic block diagram which shows another example same as the above. It is sectional drawing of the pump which concerns on this invention. It is an application example of the liquid circulation device according to the present invention.
  • FIG. 1 is a schematic block diagram showing a motor M of this embodiment.
  • the motor M includes a motor coil 5, a motor driving power source 1 configured to supply predetermined power to the motor coil 5, a driving circuit 4 configured to drive the motor coil 5, and a driving circuit.
  • a control circuit 3 configured to control 4, a regulator (control power circuit) 2 configured to receive power from the motor driving power supply 1 and supply predetermined operating power to the control circuit 3, And an external signal input unit 6.
  • conventionally known regulators 2 and control circuits 3 are employed, and detailed descriptions thereof are omitted.
  • the drive circuit 4 comprises a so-called H-bridge circuit composed of four switching elements Q1 to Q4 as shown in FIG.
  • P-channel FETs are used as the switching elements Q1 and Q2
  • N-channel FETs are used as the switching elements Q3 and Q4.
  • the source terminals of the switching elements Q1, Q2 are both connected to the positive electrode of the motor driving power source 1, and the drain terminals of the switching elements Q1, Q2 are connected to the drain terminals of the switching elements Q3, Q4, respectively.
  • the source terminals of the switching elements Q3 and Q4 are both connected to the negative electrode of the motor driving power source 1, and the gate terminals of the switching elements Q1 to Q4 are connected to the control circuit 3, respectively.
  • One end (first end) of the motor coil 5 is connected to the connection point between the drain terminal of the switching element Q1 and the drain terminal of the switching element Q3, and further, the connection between the drain terminal of the switching element Q2 and the drain terminal of the switching element Q4.
  • the other end (second end) of the motor coil 5 is connected to the point.
  • the external signal input unit 6 has a switch SW1 as shown in FIG. 1, and outputs a predetermined external signal (ON signal) in response to an ON / OFF operation of the switch SW1.
  • a switch SW2 is provided between the positive electrode of the motor driving power source 1 and the input terminal of the regulator 2, and the switch SW2 is turned on / off according to the external signal. The OFF state can be switched.
  • the switch SW2 is constituted by, for example, a transistor, an FET, a relay, or the like.
  • the switch SW1 when the switch SW1 is turned on and the external signal is output from the external signal input unit 6, the switch SW2 is turned on by the external signal, and the motor drive power supply 1 supplies the regulator 2 with a predetermined value. Power is supplied.
  • the regulator 2 to which power is supplied generates predetermined operating power and supplies it to the control circuit 3.
  • the switch SW1 when the switch SW1 is turned off, the external signal output from the external signal input unit 6 is turned off.
  • the switch SW2 is turned off to drive the motor.
  • the power supply from the power supply 1 to the regulator 2 is stopped.
  • power supply from the regulator 2 to the control circuit 3 is also stopped.
  • the switch SW2 constitutes the first switch.
  • the motor M of the present embodiment includes a stator core 10 and a magnet rotor 11 that has a plurality of magnetic poles and is rotatably arranged with the magnet surface facing the stator core 10. .
  • the above-described motor coil 5 is wound around the stator core 10.
  • the regulator 2, the control circuit 3, the drive circuit 4, and the switch SW2 described above are mounted on the printed circuit board 13, and the magnetic sensor 12 for detecting the magnetic pole position of the magnet rotor 11 is also mounted on the printed circuit board 13. ing.
  • a predetermined detection signal is output to the control circuit 3 from the magnetic sensor 12 that has detected the magnetic pole position of the magnet rotor 11.
  • the control circuit 3 that has received the detection signal outputs a gate signal to, for example, the switching elements Q1 and Q4 to turn on the switching elements Q1 and Q4.
  • a current in the direction from the switching element Q1 to the switching element Q4 flows to the motor coil 5, and a magnetic field is generated in the stator core 10 by this current.
  • the magnet rotor 11 is rotated by the generated magnetic field.
  • the magnetic sensor 12 detects the change in the magnetic pole position and outputs a corresponding detection signal to the control circuit 3.
  • the control circuit 3 turns off the switching elements Q1 and Q4 and turns on the switching elements Q2 and Q3, so that the current in the direction opposite to the above direction (the direction opposite to the arrow A in FIG. 1). Is passed through the motor coil 5. Then, a magnetic field opposite to the above direction is generated in the stator core 10 by this current, and the magnet rotor 11 is rotated by the generated magnetic field. At this time, the magnet rotor 11 rotates in the same direction as that described above.
  • control circuit 3 alternately turns on the pair of switching elements Q1 and Q4 and the pair of switching elements Q2 and Q3, so that an alternating current flows in the motor coil 5, and this alternating current generates in the stator core 10.
  • the rotation of the magnet rotor 11 is maintained by the alternating magnetic field.
  • the switch SW1 When the switch SW1 is turned off while the motor M is rotating, the external signal (ON signal) output from the external signal input unit 6 is turned off, and the switch SW2 is turned off because the external signal is turned off. Turns off.
  • the switch SW2 When the switch SW2 is turned off, the power supply from the motor driving power source 1 to the regulator 2 is stopped. As a result, the operating power supplied from the regulator 2 to the control circuit 3 is not supplied, and the control circuit 3 stops. .
  • the control circuit 3 When the control circuit 3 is stopped, all the switching elements Q1 to Q4 are turned off, and the motor coil 5 is deenergized. As a result, the alternating magnetic field generated in the stator core 10 is also lost, and the magnet rotor 11 is stopped.
  • FIG. 2 is a schematic block diagram showing another example of the motor M of the present embodiment, and the motor M shown in FIG. 1 described above in that a voltage detection circuit 7 for detecting the output voltage of the regulator 2 is provided. Is different.
  • a voltage detection circuit 7 for detecting the output voltage of the regulator 2 is provided.
  • FIG. 1 The same code
  • the motor M of the present example detects the output voltage of the motor drive power source 1, the regulator 2, the control circuit 3, the drive circuit 4, the motor coil 5, the external signal input unit 6, and the regulator 2.
  • a voltage detection circuit (voltage detection means) 7 is provided.
  • the voltage detection circuit 7 includes a series circuit of a Zener diode ZD1 and a resistor R1, and the cathode terminal of the Zener diode ZD1 is connected to the output terminal of the regulator 2.
  • one end (first end) of the resistor R1 is connected to the negative electrode of the motor driving power supply 1, and the connection point between the other end (second end) of the resistor R1 and the anode terminal of the Zener diode ZD1 is the control circuit 3. It is connected to the.
  • the voltage value across the resistor R1 set according to the output voltage value from the regulator 2 is input to the control circuit 3, and the control circuit 3
  • the motor coil 5 is driven when the voltage value across the resistor R1 exceeds a predetermined reference value.
  • a Zener current flows through the Zener diode ZD1, and the voltage across the resistor R1 rises.
  • the control circuit 3 outputs a gate signal to each of the switching elements Q1 to Q4 of the drive circuit 4 so as to start the above-described operation. It is.
  • the output voltage of the regulator 2 is equal to or lower than the Zener voltage, no Zener current flows through the Zener diode ZD1, so that no voltage is generated across the resistor R1. No gate signal is output to elements Q1 to Q4.
  • the motor coil 5 is driven after the output voltage of the regulator (control power supply circuit) 2 exceeds a predetermined reference value (zener voltage), so that it is necessary for starting the motor coil 5. Therefore, it is possible to supply a sufficient amount of electric power and improve the startability of the motor M.
  • a predetermined reference value zener voltage
  • FIG. 3 is a schematic block diagram showing still another example of the motor M of the present embodiment, and the motor shown in FIG. 1 described above in that a timer circuit 8 for delaying the start timing of the motor M is provided. Different from M. In addition, about another structure, it is the same as that of FIG. 1, The same code
  • the motor M of this example is for delaying the start timing of the motor M, the motor drive power supply 1, the regulator 2, the control circuit 3, the drive circuit 4, the motor coil 5, the external signal input unit 6, and the motor M. And a timer circuit (timer means) 8.
  • the timer circuit 8 includes a series circuit of a resistor R2 and a capacitor C1, a resistor R3 having one end (first end) connected to a connection point between the resistor R2 and the capacitor C1, and the other end of the resistor R3 (
  • the second terminal is connected to the anode terminal, and the cathode terminal is composed of a diode D1 connected to one end of the switch SW1.
  • the connection point between the resistor R2 and the capacitor C1 is also connected to the control circuit 3, and serves as an input signal to the control circuit 3.
  • the time delayed by the timer circuit 8 is set to a predetermined time until the operation of the control circuit 3 is stabilized.
  • the switch SW1 of the external signal input unit 6 when the switch SW1 of the external signal input unit 6 is turned on, the charge charged in the capacitor C1 from the motor driving power source 1 via the resistor R2 is predetermined via the resistor R3 and the diode D1. It is discharged according to the time constant. At this time, the switch SW2 is turned on by an external signal (ON signal) output from the external signal input unit 6, and the operating power generated through the same processing as described above is supplied from the regulator 2 to the control circuit 3.
  • the control circuit 3 determines that a predetermined delay time has elapsed, and the switching elements Q1 to Q4 of the drive circuit 4 are the same as described above. The output of the gate signal is started.
  • the control circuit 3 does not output a gate signal to each of the switching elements Q1 to Q4.
  • the time constant is determined by the resistors R2 and R3 and the capacitor C1, and the reference value is set to a voltage value corresponding to the time until the operation of the control circuit 3 is stabilized.
  • the motor M shown in FIGS. 2 and 3 described above also suppresses power consumption when the motor is stopped because the energization of the regulator 2, the control circuit 3, and the motor coil 5 is all stopped when the switch SW2 is turned OFF. As a result, the standby power while the motor is stopped can be kept extremely small.
  • Embodiment 2 A second embodiment of the motor according to the present invention will be described with reference to FIGS.
  • the present embodiment is different from the first embodiment in that a so-called series regulator including a transistor Tr1 is used as the regulator 2.
  • a so-called series regulator including a transistor Tr1 is used as the regulator 2.
  • symbol is attached
  • FIG. 4 is a schematic block diagram showing an example of the motor M of the present embodiment.
  • the motor M includes a motor driving power source 1, a regulator 2, a control circuit 3, a driving circuit 4, a motor coil 5, And an external signal input unit 6.
  • the regulator (control power supply circuit) 2 is a so-called series regulator, and includes a transistor Tr1 having a collector terminal connected to the positive electrode of the motor driving power supply 1, and a cathode terminal of a Zener diode ZD2 is connected to the base terminal of the transistor Tr1. It is connected. The anode terminal of the Zener diode ZD2 is connected to the negative electrode of the motor driving power source 1.
  • a series circuit of a resistor R4 and a switch SW3 is connected between the collector terminal and the base terminal of the transistor Tr1.
  • the switch SW3 is turned on / off in response to the ON / OFF operation of the switch SW1 of the external signal input unit 6, and the switch SW3 constitutes a second switch.
  • the switch SW3 When the switch SW3 is turned on, predetermined operating power is output from the emitter terminal of the transistor Tr1 and supplied to the control circuit 3.
  • the base voltage of the transistor Tr1 when the switch SW3 is in the ON state is fixed to a predetermined value by the Zener diode ZD2, and as a result, the emitter voltage (the output voltage of the regulator 2) is also fixed to a predetermined value.
  • the switch SW3 is constituted by, for example, a transistor, an FET, a relay, or the like.
  • the switch SW1 of the external signal input unit 6 When the switch SW1 of the external signal input unit 6 is turned on, a predetermined external signal (ON signal) is output from the external signal input unit 6 to the switch SW3, and the switch SW3 is turned on by this external signal.
  • the switch SW3 When the switch SW3 is turned on, the base voltage of the transistor Tr1 is fixed to a predetermined value (that is, a base current flows) by the Zener diode ZD2, and as a result, the emitter voltage of the transistor Tr1 is also fixed to a predetermined value.
  • the emitter voltage at this time becomes the supply voltage to the control circuit 3 (the output voltage of the regulator 2).
  • the control circuit 3 When predetermined operating power is supplied from the regulator 2 to the control circuit 3, the control circuit 3 is activated.
  • a predetermined detection signal is output to the control circuit 3 from the magnetic sensor 12 that has detected the magnetic pole position of the magnet rotor 11.
  • the control circuit 3 that has received the detection signal outputs a gate signal to, for example, the switching elements Q1 and Q4 to turn on the switching elements Q1 and Q4.
  • a current in the direction from the switching element Q1 to the switching element Q4 flows to the motor coil 5, and a magnetic field is generated in the stator core 10 by this current.
  • the magnet rotor 11 is rotated by the generated magnetic field.
  • the magnetic sensor 12 detects the change in the magnetic pole position and outputs a corresponding detection signal to the control circuit 3.
  • the control circuit 3 turns off the switching elements Q1 and Q4 and turns on the switching elements Q2 and Q3, so that the current in the direction opposite to the above direction (the direction opposite to the arrow B in FIG. 4). Is passed through the motor coil 5. Then, a magnetic field opposite to the above direction is generated in the stator core 10 by this current, and the magnet rotor 11 is rotated by the generated magnetic field. At this time, the magnet rotor 11 rotates in the same direction as that described above.
  • control circuit 3 alternately turns on the pair of switching elements Q1 and Q4 and the pair of switching elements Q2 and Q3, so that an alternating current flows in the motor coil 5, and this alternating current generates in the stator core 10.
  • the rotation of the magnet rotor 11 is maintained by the alternating magnetic field.
  • a voltage detection circuit (voltage detection means) 7 for detecting the output voltage of the regulator 2 is provided as shown in FIG. 5, or the start timing of the motor M is delayed as shown in FIG.
  • a timer circuit (timer means) 8 may be provided, and similarly the startability of the motor M can be improved. Note that details are the same as those in the first embodiment, and a description thereof will be omitted.
  • the switching elements Q1 to Q4 are FETs
  • NPN type and PNP type bipolar transistors may be used, and the present invention is limited to this embodiment. It is not a thing.
  • a single-phase full-wave brushless DC motor has been described as an example.
  • a three-phase full-wave brushless DC motor or a brushed DC motor may be used, and the present invention is limited to this embodiment. It is not a thing.
  • the voltage detection circuit 7 is configured by the Zener diode ZD1 and the resistor R1, but for example, a dedicated IC or a part of a microcomputer may be used as the voltage detection means, and is limited to the present embodiment. It is not something.
  • the timer means is not limited to this embodiment, and for example, a dedicated IC or a part of a microcomputer may be used.
  • control power supply circuit is the regulator 2
  • the control power supply circuit is not limited to the regulator and can supply operating power to the control circuit 3. I just need it.
  • the standby power while the motor is stopped can be kept extremely small.
  • FIG. 7 is a cross-sectional view showing an example of the pump P of the present embodiment.
  • the pump P includes the motor M described in the first embodiment or the second embodiment, the impeller 20 that is connected to the magnet rotor 11 of the motor M and is configured to rotate together with the magnet rotor 11, and And a casing 22 to be stored.
  • a suction port 21 for sucking liquid such as water is provided on one side of the casing 22 (upper side in FIG. 7), and a delivery port 23 for sending the sucked liquid is provided on the side surface of the casing 22.
  • the impeller 20 connected to the magnet rotor 11 rotates together with the magnet rotor 11, whereby the liquid is sucked into the inside from the suction port 21, and the liquid sucked into the inside is the inside of the impeller 20. It is sent to the outside from the delivery port 23 through.
  • the energization of the regulator 2, the control circuit 3, and the motor coil 5 is all stopped while the motor M is stopped, so that the standby power during the motor stop can be kept extremely small. it can.
  • FIG. 8 is an application example of the liquid circulation device C provided with the pump P of the present embodiment, and is applied to, for example, an automobile equipped with a so-called hybrid system in which an engine and a motor are combined.
  • the automobile includes a battery 30, a brushless DC motor 33 that generates driving force for the automobile, and an inverter 32 that is supplied with electric power from the battery 30 and controls the brushless DC motor 33.
  • a known engine 31 is provided.
  • a power semiconductor element is used for the inverter 32 described above, and a large current flows through the power semiconductor element. Therefore, it is necessary to cool the heat generated in the power semiconductor element, and the liquid circulation device C of this embodiment is used. And according to this liquid circulation device C, while the motor M used for the pump P is stopped, the energization to the regulator 2, the control circuit 3 and the motor coil 5 are all stopped, so that the motor is stopped. The standby power can be kept extremely small.
  • the inverter 32 functions as a rectifier circuit for charging the battery 30 when the brushless DC motor 33 functions as a generator.
  • the pump P and the liquid circulation device C are used as a cooling device for an automobile has been described as an example.
  • a hot water circulation device for securing heating in a vehicle at an idling stop in winter It may be used, or may be used as a circulating device for hot water supply in a house or the like, and is not limited to this embodiment as long as the liquid is circulated.

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

Abstract

L'invention porte sur un moteur qui comporte : un enroulement de moteur ; une alimentation en énergie d'excitation du moteur, qui est conçue pour fournir une énergie électrique à l'enroulement de moteur ; un circuit de commande qui est conçu pour commander le fonctionnement de l'enroulement de moteur, et un circuit de commande d'alimentation en énergie qui est conçu pour recevoir l'énergie électrique fournie par l'alimentation en énergie d'excitation de moteur pour fournir une énergie électrique d'excitation au dispositif de commande. La sortie du circuit de commande d'alimentation en énergie est mise sur marche ou sur arrêt en réponse à un signal extérieur.
PCT/JP2011/059634 2010-06-08 2011-04-19 Moteur, et pompe et dispositif de circulation de liquide équipés chacun de ce moteur WO2011155264A1 (fr)

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JP2010131414A JP2011259598A (ja) 2010-06-08 2010-06-08 モータ及びそれを用いたポンプ並びに液体循環装置
JP2010-131414 2010-06-08

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WO2011155264A1 true WO2011155264A1 (fr) 2011-12-15

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Publication number Priority date Publication date Assignee Title
JP2023019761A (ja) * 2021-07-29 2023-02-09 Ｋｙｂ株式会社 モータ制御装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266872A (ja) * 1989-04-04 1990-10-31 Honda Motor Co Ltd インバータ装置
JPH089652A (ja) * 1994-06-22 1996-01-12 Yaskawa Electric Corp インバータの制御電源回路
JP2003164186A (ja) * 2001-11-22 2003-06-06 Nikon Corp モータ駆動装置
JP2005198435A (ja) * 2004-01-08 2005-07-21 Asmo Co Ltd 昇圧回路およびモータ駆動装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266872A (ja) * 1989-04-04 1990-10-31 Honda Motor Co Ltd インバータ装置
JPH089652A (ja) * 1994-06-22 1996-01-12 Yaskawa Electric Corp インバータの制御電源回路
JP2003164186A (ja) * 2001-11-22 2003-06-06 Nikon Corp モータ駆動装置
JP2005198435A (ja) * 2004-01-08 2005-07-21 Asmo Co Ltd 昇圧回路およびモータ駆動装置

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