WO2017187578A1 - モータ駆動装置および空気調和機 - Google Patents
モータ駆動装置および空気調和機 Download PDFInfo
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- WO2017187578A1 WO2017187578A1 PCT/JP2016/063291 JP2016063291W WO2017187578A1 WO 2017187578 A1 WO2017187578 A1 WO 2017187578A1 JP 2016063291 W JP2016063291 W JP 2016063291W WO 2017187578 A1 WO2017187578 A1 WO 2017187578A1
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- inverter module
- power pattern
- opening
- inverter
- drive device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/065—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L25/0655—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00 the devices being arranged next to each other
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/222—Completing of printed circuits by adding non-printed jumper connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14329—Housings specially adapted for power drive units or power converters specially adapted for the configuration of power bus bars
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
- H02K2211/03—Machines characterised by circuit boards, e.g. pcb
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0263—High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10166—Transistor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10363—Jumpers, i.e. non-printed cross-over connections
Definitions
- the present invention relates to a motor drive device and an air conditioner that drive a motor by converting DC power into AC power.
- a conventional motor driving device has an inverter module, and a plurality of switching elements are arranged in the inverter module.
- reducing the chip area improves the yield when removing from the wafer.
- Patent Document 1 discloses a technique of driving in parallel using a plurality of inverter modules.
- Patent Document 1 In the prior art disclosed in Patent Document 1, a plurality of inverter modules are arranged on a printed circuit board, and adjacent inverter modules are connected to each other by a wiring pattern on the circuit board. Therefore, in the prior art disclosed in Patent Document 1, the wiring impedance between adjacent inverter modules is larger than the wiring impedance on the substrate on which one inverter module is arranged, and the amount of heat generated due to the wiring impedance is increased. Since the temperature rise in the motor driving device affects the life of the parts constituting the motor driving device, in the conventional motor driving device represented by Patent Document 1, a bus bar having a complicated shape is used to reduce the wiring impedance. Although used, there was a problem that the manufacturing cost increased.
- the present invention has been made in view of the above, and an object of the present invention is to obtain a motor drive device that can suppress an increase in manufacturing cost while suppressing an increase in temperature.
- a motor driving device that drives a motor by converting AC power into DC power, and includes a first plate surface and a first plate surface.
- the first inverter module and the second inverter module provided on the first plate surface, and provided on the second plate surface and connected to the first inverter module.
- a printed circuit board having a first jumper portion is provided, and a cross-sectional area of the first jumper portion is larger than a cross-sectional area of the first power pattern or the second power pattern.
- the motor drive device has an effect of suppressing an increase in manufacturing cost while suppressing an increase in temperature.
- Configuration diagram of a motor drive device The block diagram of the air conditioner which concerns on embodiment of this invention Interior view of the outdoor unit shown in FIG. Partial enlarged view of the electrical component box shown in FIG. Side view of the printed circuit board and heat sink shown in FIG.
- FIG. 1 is a configuration diagram of a motor drive device 100 according to an embodiment of the present invention.
- the motor driving device 100 includes a rectifier 2 that rectifies an AC voltage supplied from the AC power supply 1, a reactor 3, a capacitor 4 that smoothes the voltage rectified by the rectifier 2, and a voltage detection that detects a voltage across the capacitor 4.
- Unit 11 an inverter circuit 101 that drives a motor 8 that is a three-phase motor by converting a DC voltage smoothed by the capacitor 4 into an AC voltage, and a pulse width modulation (PWM: Pulse Width) for controlling the inverter circuit 101.
- a control circuit 9 that generates a (Modulation) signal and a plurality of current measuring units 10a and 10b that measure the motor current are provided.
- An example of the motor 8 is a three-phase induction rotating electric machine.
- the rectifier 2 and the inverter circuit 101 are connected to each other through the DC bus 12.
- the rectifier 2 is a full-wave rectifier circuit using a diode bridge.
- One end of the capacitor 4 is connected to the positive bus 12 a of the DC bus 12, and the other end of the capacitor 4 is connected to the negative bus 12 b 1 of the DC bus 12.
- the current measuring units 10 a and 10 b are provided between the inverter circuit 101 and the motor 8.
- the inverter circuit 101 includes an inverter module 5 that is a first inverter module corresponding to the U phase, an inverter module 6 that is a second inverter module corresponding to the V phase, and a third inverter module corresponding to the W phase.
- An inverter module 7 is provided.
- the inverter module 5 includes six switching elements 5a, 5b, 5c, 5d, 5e, and 5f. Specifically, the inverter module 5 includes switching elements 5a and 5b connected in series, switching elements 5c and 5d connected in series, and switching elements 5e and 5f connected in series. Switching elements 5a, 5c and 5e constitute an upper arm, and switching elements 5b, 5d and 5f constitute a lower arm. The switching elements 5a, 5c, 5e constituting the upper arm are connected to the positive terminal 13a of the inverter module 5. The switching elements 5b, 5d, 5f constituting the lower arm are connected to the negative terminal 13b of the inverter module 5.
- Positive terminal 13a is connected to positive bus 12a
- negative terminal 13b is connected to negative bus 12b1.
- a connection point between the switching element 5 a and the switching element 5 b is connected to the motor 8.
- the connection point between the switching element 5c and the switching element 5d is connected to the motor 8, and the connection point between the switching element 5e and the switching element 5f is connected to the motor 8.
- the inverter modules 6 and 7 are each configured in the same manner as the inverter module 5, and in FIG.
- the positive terminal 13a provided in the inverter module 6 is connected to the positive bus 12a
- the negative terminal 13b provided in the inverter module 6 is connected to the negative bus 12b2.
- the positive terminal 13a provided in the inverter module 7 is connected to the positive bus 12a
- the negative terminal 13b provided in the inverter module 7 is connected to the negative bus 12b3.
- the positive bus 12a corresponds to a positive power pattern of a substrate (not shown) constituting the inverter circuit 101
- the negative buses 12b1, 12b2, and 12b3 correspond to negative power patterns on the substrate constituting the inverter circuit 101.
- the inverter module 5 and the inverter module 6 are disposed adjacent to each other, and the inverter module 6 and the inverter module 7 are disposed adjacent to each other.
- Adjacent negative bus 12b1 and negative bus 12b2 are connected by a jumper 20 which is a first jumper.
- Adjacent negative bus 12b2 and negative bus 12b3 are connected by a jumper 21 which is a second jumper. Details of the configuration of the substrate constituting the inverter circuit 101, the power pattern of the substrate, and the jumpers 20 and 21 will be described later.
- the control circuit 9 controls the inverter circuit 101 based on the voltage detected by the voltage detection unit 11 and the motor current measured by the current measurement units 10a and 10b. Specifically, the control circuit 9 generates a PWM signal for controlling the on / off state of the switching element for each phase and arm and outputs the PWM signal to the inverter circuit 101.
- the PWM signal is a pulse-like signal having a value of High for turning on the switching element or Low for turning off the switching element.
- the pulse width is determined based on the current that flows when the three switching elements are turned on. The pulse width is equal to the length of time that the switching element continues to be on.
- the control circuit 9 generates a PWM signal by regarding the three switching elements of the upper arm or the three switching elements of the lower arm of each of the inverter modules 5, 6, and 7 as one switching element having a large current capacity. To do.
- IPM Intelligent Power Module
- IGBT Insulated Gate Bipolar Transistor
- MOSFET Metal Oxide Semiconductor Transistor
- Examples of the material of the switching elements 5a to 5f include gallium nitride (GaN), silicon carbide (SiC), or diamond called a wide band gap semiconductor.
- GaN gallium nitride
- SiC silicon carbide
- a wide band gap semiconductor By using a wide band gap semiconductor, the withstand voltage is increased and the allowable current density is also increased, so that the module can be miniaturized. Since the wide band gap semiconductor has high heat resistance, it is possible to reduce the size of the radiating fin of the radiating portion.
- an AC voltage output from the AC power source 1 is applied to the rectifier 2, and the AC voltage is converted into a DC voltage in the rectifier 2.
- the converted DC voltage is smoothed by the capacitor 4 and applied to the inverter circuit 101, converted to a variable frequency AC voltage, and supplied to the motor 8.
- the inverter when an inverter is used to drive a three-phase motor, the inverter includes a switching element pair composed of one switching element of the upper arm and one switching element of the lower arm connected in series for each phase. Prepare. Therefore, the inverter of the comparative example includes a total of three pairs, that is, six switching elements for three phases.
- the switching element when the switching element is mounted as a chip, the yield at the time of taking out from the wafer can be improved as the chip area is reduced.
- the wafer is more expensive than when Si is used as the material of the switching element, so it is desirable to reduce the chip area in order to reduce the price of the inverter.
- the current capacity may be small, such as when used in a home air conditioner, the price can be reduced by using an inverter module that controls three phases with six switching elements with a small chip area. it can.
- the inverter module of the comparative example that is, the inverter module that drives the three-phase motor with six switching elements, it is difficult to achieve both low cost and high current.
- this embodiment it is possible to reduce both the price and increase the current by using switching elements having a small current capacity in parallel.
- the basic part can be shared by one inverter module for three phases constituted by the six switching elements shown in the comparative example and the inverter modules 5, 6 and 7 according to the present embodiment. .
- a three-phase inverter module composed of six switching elements can be used as the inverter modules 5, 6, and 7 as they are, or by making a simple change to the three-phase inverter module It can be used as the inverter modules 5, 6 and 7.
- one inverter module for three phases and the inverter modules 5, 6, and 7 shown in FIG. 1 can be manufactured as the same or similar modules. Therefore, the inverter modules 5, 6 and 7 for large current capacity can be manufactured at low cost.
- one module for three phases composed of six switching elements is used for a home air conditioner, and three modules are used for a commercial air conditioner as shown in FIG. Can be used.
- the motor driving device 100 includes an air conditioner, a refrigerator, a washing dryer, a refrigerator, a dehumidifier, a heat pump type hot water heater, a showcase, a vacuum cleaner, a fan motor, a ventilation fan, a hand dryer, or an induction. It can be mounted on a device such as a heating electromagnetic cooker, and can be used as a device for driving a motor built in the device.
- FIG. 2 is a configuration diagram of the air conditioner 200 according to the embodiment of the present invention.
- FIG. 3 is an interior view of the outdoor unit 202 shown in FIG.
- FIG. 3 shows the internal configuration of the outdoor unit 202 viewed from the top plate 202n of the outdoor unit 202.
- FIG. 4 is a partially enlarged view of the electrical component box 50 shown in FIG. In FIG. 4, a portion where the printed circuit board 52 and the heat sink 53 are installed in the electrical component box 50 viewed from the top plate 202 n of the outdoor unit 202 is shown in an enlarged manner.
- FIG. 4 is the blower chamber 202e side
- the upper side of the paper surface is the machine chamber 202f side
- the left side of the paper surface is the heat exchanger 202i side
- the right side of the paper surface is the blower fan 202d side or the blower outlet 202m side.
- FIG. 5 is a side view of the printed circuit board 52 and the heat sink 53 shown in FIG. 4 as viewed from the right side of FIG.
- the air conditioner 200 is an example of a device including the motor driving device 100 shown in FIG.
- the air conditioner 200 includes an indoor unit 201 and an outdoor unit 202.
- the outdoor unit 202 includes a casing 202a, a heat exchanger 202i, a fan fixing unit 202h, an electric motor 202b, a blower fan 202d, a machine room 202f, a partition plate 202g, a compressor 202c, and an electrical component box 50.
- the heat exchanger 202i is provided inside the casing 202a.
- the fan fixing portion 202h is provided at the center of the back surface of the heat exchanger 202i.
- the air blowing chamber 202e is provided between the air outlet 202m on the front surface 202j side of the casing 202a and the heat exchanger 202i.
- the electric motor 202b which is a drive source of the blower fan 202d is disposed in the blower chamber 202e of the casing 202a by the fan fixing portion 202h.
- the blower fan 202d is attached to the rotating shaft 202b1 of the electric motor 202b.
- the compressor 202c is disposed inside the machine room 202f.
- the machine room 202f has a rainproof structure separated from the blower room 202e by a partition plate 202g.
- the electrical component box 50 is disposed on the machine room 202f side, and is disposed between the top plate 202n and the compressor 202c.
- the electrical component box 50 includes a rectangular casing 51 formed by processing a metal that is an example of an incombustible material, a printed circuit board 52 provided inside the casing 51, and a heat sink 53. With.
- the printed circuit board 52 is provided with components constituting the motor driving device 100 shown in FIG.
- a printed circuit board 52 and a heat sink 53 are installed on a side surface 51 a on the air blowing chamber 202 e side of the casing 51 of the electrical component box 50.
- the printed circuit board 52 is provided inside the housing 51, and the heat sink 53 is provided outside the housing 51.
- the heat sink 53 includes a fin base 53a serving as a mounting surface for the inverter modules 5, 6, and 7, and a plurality of fins 53b.
- the fin 53b is provided on the air blowing chamber 202e side of the fin base 53a, and is disposed so as to be cooled by the air flowing through the air blowing chamber 202e. That is, the heat sink 53 is arranged so that the air flowing through the blower chamber 202e flows into the gap 53c between the adjacent fins 53b. More specifically, the fins 53b are fixed to the fin base 53a, and a plurality of fins 53b are arranged in a direction to take in the wind A1 flowing into the air blowing chamber 202e that is an air passage.
- An example of the material of the fins 53b and the fin base 53a is aluminum.
- One opening 51a1 and two openings 51a2 are formed on the side surface 51a of the housing 51.
- the opening 51a1 and the opening 51a2 are arranged in the order of the opening 51a2, the opening 51a1, and the opening 51a2 from the left side of the drawing.
- the area of the opening 51a1 is larger than the area of each of the two openings 51a2.
- a heat sink 53 is fixed to the side of the air blowing chamber 202e of the side surface 51a so as to close the opening 51a1.
- a printed circuit board 52 is provided on the side of the machine room 202f on the side surface 51a.
- the printed circuit board 52 includes a first plate surface 52a on the air blower chamber 202e side, a second plate surface 52b on the machine chamber 202f side, and inverter modules 5, 6, and 7 provided on the first plate surface 52a, A first power pattern 31 a provided on the second plate surface 52 b and connected to the inverter module 5; a second power pattern 31 b provided on the second plate surface 52 b and connected to the inverter module 6; And a third power pattern 31c connected to the inverter module 7 provided on the plate surface 52b.
- the first power pattern 31a is a copper foil pattern corresponding to the negative bus 12b1 shown in FIG.
- the second power pattern 31b is a copper foil pattern corresponding to the negative bus 12b2 shown in FIG.
- the third power pattern 31c is a copper foil pattern corresponding to the negative bus 12b3 shown in FIG.
- the printed circuit board 52 is provided on the second plate surface 52b, the jumper portion 20 connecting the first power pattern 31a and the second power pattern 31b, and the second power surface provided on the second plate surface 52b.
- the jumper part 21 which connects the pattern 31b and the 3rd power pattern 31c is provided.
- a power pattern corresponding to the positive bus 12 a shown in FIG. 1, a diode bridge circuit constituting the rectifier 2, a reactor 3 and a capacitor 4 are installed on the printed circuit board 52. It is assumed that These components are connected to the copper foil pattern on the printed circuit board 52 with solder.
- the printed circuit board 52 is provided so that the first plate surface 52 a faces the heat sink 53.
- Each of the inverter modules 5, 6, 7 provided on the first plate surface 52 a is in contact with the heat sink 53.
- the inverter modules 5, 6, and 7 are arranged in the order of the inverter module 5, the inverter module 6, and the inverter module 7 from the heat exchanger 202i (not shown) on the left side of the paper toward the blower fan 202d (not shown) on the right side of the paper. That is, the inverter modules 5, 6, and 7 are sequentially arranged in the flow direction of the wind A1 flowing through the blower chamber 202e.
- the jumper parts 20 and 21 are U-shaped conductive members, and examples of the material thereof include the same material as the copper foil pattern of the printed circuit board 52.
- the shape of the jumper parts 20 and 21 is not limited to the U-shape, and may be a U-shape, a C-shape, or a bent shape corresponding to these.
- the jumper part 20 has a linear base part 20a and a pair of terminal parts 20b bent at right angles from both ends of the base part 20a. The pair of terminal portions 20b are inserted into through holes (not shown) formed in the printed circuit board 52 and soldered to the first power pattern 31a and the second power pattern 31b.
- the jumper portion 21 has a linear base portion 21a and a pair of terminal portions 21b bent at right angles from both ends of the base portion 21a.
- the pair of terminal portions 21b are inserted into through holes (not shown) formed in the printed circuit board 52 and soldered to the second power pattern 31b and the third power pattern 31c.
- Each cross-sectional area of the jumper portions 20 and 21 is larger than the cross-sectional area of the first power pattern 31a, the second power pattern 31b, or the third power pattern 31c.
- each of the jumper portions 20 and 21 has a cross-sectional area that is 10 times or more that of the copper foil pattern of the printed circuit board 52. Thereby, the impedance between adjacent inverter modules can be significantly reduced.
- the height of the jumper portions 20 and 21 is set to 10 mm or more in view of heat dissipation.
- the control circuit 9 that has received the cooling operation or heating operation command drives the inverter circuit 101, whereby the compressor 202c and the blower fan 202d are driven.
- the compressor 202c When the compressor 202c is driven, the refrigerant circulates in the heat exchanger 202i, and heat exchange is performed between the air around the heat exchanger 202i and the refrigerant. Further, a negative pressure is generated by the rotation of the blower fan 202d, and the air on the side and back surfaces of the outdoor unit 202 is taken into the blower chamber 202e.
- the wind A1 generated at this time flows to the back surface portion and the side surface portion of the heat exchanger 202i, whereby heat exchange in the heat exchanger 202i is promoted.
- a part of the wind A1 generated by the rotation of the blower fan 202d enters the inside of the electrical component box 50 from the opening 51a2 which is the first opening on the left side of FIG.
- the wind A2 that has entered the inside of the electrical component box 50 flows around the jumpers 20 and 21 provided on the second plate surface 52b of the printed circuit board 52, and is the second opening on the right side of the paper surface of FIG. It is discharged from the opening 51a2 to the outside of the electrical component box 50.
- the wind A2 is applied to the air blowing chamber 202e that is the air path for applying the air A1 to the heat sink 53 and the jumpers 20 and 21. If the space inside the electrical component box 50, which is the air path, is separated, the wind A2 can flow to the jumper portions 20 and 21 in a form that is drawn by the strong air A1 that flows toward the heat sink. That is, by providing two openings 51a2 in the blower chamber 202e of the electrical component box 50, the internal pressure of the electrical component box 50 is lower than the external pressure of the electrical component box 50 when the wind A1 flows into the blower chamber 202e. The wind A2 flowing in the electrical component box 50 is attracted to the strong wind A1 flowing to the heat sink 53 side.
- the motor drive device 100 provides the jumper portions 20 and 21, thereby allowing the heat generated in the pattern wiring on the printed circuit board 52 and the heat generated in the soldering portion to pass through the jumper portions 20 and 21. Heat can be radiated efficiently and temperature rise can be suppressed. Therefore, the heat cycle due to the temperature rise can be suppressed, and the long-term reliability of the printed circuit board 52 can be improved. Furthermore, since motor drive device 100 according to the present embodiment has a structure in which wind A2 can be applied to jumper portions 20 and 21, temperature rise due to heat generated in pattern wiring on printed circuit board 52 can be further suppressed. It can also be applied to the inverter circuit 101 with a large current.
- the jumper portions 20 and 21 may be applied to the positive bus 12a.
- the positive bus 12a is divided into a plurality of buses in the same manner as the negative buses 12b1, 12b2, and 12b3, and the jumpers 20 and 21 are disposed between adjacent positive buses.
- the jumpers 20 and 21 By applying the jumpers 20 and 21 to the positive bus 12a, the same effect as when applied to the negative buses 12b1, 12b2 and 12b3 can be obtained.
- the impedance of the negative bus between the inverter modules can be greatly reduced, so that the GND of the inverter circuit 101 can be stabilized.
- a plurality of GNDs can be stabilized, so that a DC stable power source for driving a switching element is used. Can be used in common.
- the number of parallel switching elements constituting one arm is three has been described, but the number of parallel elements may be two or more.
- most of the general-purpose motor drive inverter modules are three-phase, and if the number of parallel is 3, three of the modules are connected in parallel, so that a three-phase motor inverter circuit with three parallel switching elements is used. Since it can be easily configured with products, there are advantages in terms of cost and procurement.
- the motor drive device 100 includes a heat sink 53, and the heat sink 53 is arranged so that the air flowing in the air path of the device including the motor drive device 100 flows in the gap 53 c between the adjacent fins 53 b, and the jumper portion 20 and the jumper portion 21 are arranged along the direction in which each of the plurality of fins 53b extends, so that the jumper portion 20 and the jumper portion are caused by the wind A2 flowing in the same direction as the wind A1 flowing in the gap of the heat sink 53. Since 21 is effectively cooled, the heat generated on the printed circuit board 52 can be dissipated more efficiently.
- the jumper portion 20 is provided in the electrical component box by providing a first opening through which a part of the wind flowing in the air passage of the device enters and a second opening through which the wind that has entered the electrical component box is discharged.
- the jumper portion 21 is configured to be disposed between the first opening and the second opening, so that the jumper portion is caused by the wind A2 flowing in the same direction as the wind A1 flowing in the gap of the heat sink 53.
- the jumper portion 20 or the jumper portion 21 is effectively cooled, so that heat generated on the printed circuit board 52 can be efficiently radiated as compared with the case where the first opening portion and the second opening portion are not provided.
- the jumper portion 20 or the jumper portion 21 is arranged between the first opening portion and the second opening portion so that the jumper portion 20 or the jumper portion 21 is the first opening portion.
- the heat generated on the printed circuit board 52 can be dissipated more efficiently than in the case of being disposed between the first opening and the second opening.
- the heat leaked from the heat sink 53 side that is, the heat generated on the printed circuit board 52 using the wind A2 shown in FIG. It can dissipate heat well.
- the heat of the printed circuit board 52 can be efficiently radiated and the reliability of the product can be improved.
- the motor drive device 100 according to the present embodiment by mounting the motor drive device 100 according to the present embodiment on the air conditioner 200, it is possible to obtain the air conditioner 200 with high reliability and low cost.
- the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
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Abstract
Description
図1は本発明の実施の形態に係るモータ駆動装置100の構成図である。モータ駆動装置100は、交流電源1から供給される交流電圧を整流する整流器2と、リアクトル3と、整流器2で整流された電圧を平滑するコンデンサ4と、コンデンサ4の両端電圧を検出する電圧検出部11と、コンデンサ4で平滑された直流電圧を交流電圧に変換して3相モータであるモータ8を駆動するインバータ回路101と、インバータ回路101を制御するためのパルス幅変調(PWM:Pulse Width Modulation)信号を生成する制御回路9と、モータ電流を計測する複数の電流計測部10a,10bとを備える。モータ8としては三相誘導回転電機を例示できる。
Claims (6)
- 交流電力を直流電力に変換してモータを駆動するモータ駆動装置であって、
第1の板面および第2の板面とを有し、前記第1の板面に設けられた第1のインバータモジュールおよび第2のインバータモジュールを有し、前記第2の板面に設けられ前記第1のインバータモジュールに接続される第1のパワーパターンを有し、前記第2の板面に設けられ前記第2のインバータモジュールに接続される第2のパワーパターンを有し、前記第1のパワーパターンと前記第2のパワーパターンとを接続する第1のジャンパー部を有するプリント基板を備え、
前記第1のジャンパー部の断面積は、前記第1のパワーパターンまたは前記第2のパワーパターンの断面積よりも大きいことを特徴とするモータ駆動装置。 - 前記プリント基板は、前記第1の板面に設けられた第3のインバータモジュールと、前記第2の板面に設けられ前記第3のインバータモジュールに接続される第3のパワーパターンと、前記第2のパワーパターンと前記第3のパワーパターンとを接続する第2のジャンパー部と、前記第1のインバータモジュール、前記第2のインバータモジュールおよび前記第3のインバータモジュールに接するヒートシンクとを有し、
前記ヒートシンクは、前記第1のインバータモジュール、前記第2のインバータモジュールおよび前記第3のインバータモジュールに接するフィンベースと前記フィンベースに設置される複数のフィンとを有し、前記モータ駆動装置を備えた機器の風路に流れる風が隣接する前記フィンの間の隙間に流れるように配置され、
前記第1のジャンパー部および前記第2のジャンパー部は、前記複数のフィンの各々が延びる方向に沿って配列されることを特徴とする請求項1に記載のモータ駆動装置。 - 前記プリント基板を内蔵する電気品箱を備え、
前記電気品箱は、前記モータ駆動装置を備えた機器の風路に流れる風の一部が侵入する第1の開口部と、前記電気品箱に侵入した風が排出される第2の開口部とを備え、
前記第1のジャンパー部は、前記第1の開口部と前記第2の開口部との間に配置されることを特徴とする請求項1または請求項2に記載のモータ駆動装置。 - 前記プリント基板を内蔵する電気品箱を備え、
前記電気品箱は、前記モータ駆動装置を備えた機器の風路に流れる風の一部が侵入する第1の開口部と、前記電気品箱に侵入した風が排出される第2の開口部とを備え、
前記第1のジャンパー部および前記第2のジャンパー部は、前記第1の開口部と前記第2の開口部との間に配置されることを特徴とする請求項2に記載のモータ駆動装置。 - 前記第1のインバータモジュールに内蔵されるスイッチング素子は、ワイドバンドギャップ半導体を用いて構成されることを特徴とする請求項1から請求項4の何れか一項に記載のモータ駆動装置。
- 請求項1から請求項5の何れか一項に記載のモータ駆動装置を備えたことを特徴とする空気調和機。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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EP16858485.2A EP3255782B1 (en) | 2016-04-27 | 2016-04-27 | Motor drive device and air conditioner |
PCT/JP2016/063291 WO2017187578A1 (ja) | 2016-04-27 | 2016-04-27 | モータ駆動装置および空気調和機 |
AU2016405035A AU2016405035B2 (en) | 2016-04-27 | 2016-04-27 | Motor driving device and air conditioner |
US16/072,529 US10749414B2 (en) | 2016-04-27 | 2016-04-27 | Motor driving device and air conditioner |
CN201680084011.XA CN109075733B (zh) | 2016-04-27 | 2016-04-27 | 马达驱动装置以及空调机 |
JP2018514036A JP6615326B2 (ja) | 2016-04-27 | 2016-04-27 | モータ駆動装置および空気調和機 |
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PCT/JP2016/063291 WO2017187578A1 (ja) | 2016-04-27 | 2016-04-27 | モータ駆動装置および空気調和機 |
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JP2019096508A (ja) * | 2017-11-24 | 2019-06-20 | 川崎重工業株式会社 | 筐体 |
CN210042640U (zh) * | 2018-12-29 | 2020-02-07 | 台达电子企业管理(上海)有限公司 | 电子设备及其功率模块 |
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AU2016405035A1 (en) | 2018-08-16 |
CN109075733B (zh) | 2022-05-13 |
US10749414B2 (en) | 2020-08-18 |
US20190305649A1 (en) | 2019-10-03 |
AU2016405035B2 (en) | 2019-07-18 |
JPWO2017187578A1 (ja) | 2018-07-05 |
JP6615326B2 (ja) | 2019-12-04 |
EP3255782A4 (en) | 2018-03-07 |
CN109075733A (zh) | 2018-12-21 |
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EP3255782B1 (en) | 2021-06-23 |
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