WO2017170645A1 - Compressor control circuit, compression apparatus, and vehicle - Google Patents

Compressor control circuit, compression apparatus, and vehicle Download PDF

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Publication number
WO2017170645A1
WO2017170645A1 PCT/JP2017/012821 JP2017012821W WO2017170645A1 WO 2017170645 A1 WO2017170645 A1 WO 2017170645A1 JP 2017012821 W JP2017012821 W JP 2017012821W WO 2017170645 A1 WO2017170645 A1 WO 2017170645A1
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WIPO (PCT)
Prior art keywords
control circuit
pattern wiring
ground
converter
circuit
Prior art date
Application number
PCT/JP2017/012821
Other languages
French (fr)
Japanese (ja)
Inventor
孝志 中神
貴之 鷹繁
Original Assignee
三菱重工オートモーティブサーマルシステムズ株式会社
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Publication of WO2017170645A1 publication Critical patent/WO2017170645A1/en

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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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • 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

Definitions

  • the present invention relates to a compressor control circuit, a compression device, and a vehicle.
  • Hybrid vehicles and electric vehicles are equipped with various electronic devices. Therefore, it is necessary to design in consideration of EMC (Electro Magnetic Compatibility) in a vehicle including an electronic device such as a hybrid vehicle or an electric vehicle.
  • Patent Document 1 describes a technique for reducing radiation noise radiated from a vehicle as a related technique.
  • an inverter-integrated electric compressor in which an inverter is integrated into a compressor housing may be used.
  • power is supplied to the inverter main circuit that generates a current for rotating the compressor motor from a high voltage power source for operating a motor or the like used for running the vehicle.
  • the inverter control circuit that controls the inverter main circuit is supplied with power from an isolated DC-DC converter that generates a DC (Direct Current) voltage from a low-voltage power source for operating accessories such as audio. .
  • the inverter main circuit and the inverter control circuit are circuits constituting the inverter, and are connected to the ground of the high voltage power supply system.
  • the operating frequency of the inverter main circuit is a low frequency band (for example, a frequency band on the order of kilohertz).
  • the operating frequency of the isolated DC-DC converter is a high frequency band (for example, a frequency band on the order of megahertz).
  • the present invention provides a compressor control circuit, a compression device, and a vehicle that can solve the above-described problems.
  • the compressor control circuit includes an insulated DC-DC converter in which a primary circuit and a secondary circuit are insulated, and power is supplied from the insulated DC-DC converter.
  • the one place may be connected using a short-circuit element.
  • the one place may be connected using a first noise filter.
  • the one place is further provided in a path for supplying electric power from the insulated DC-DC converter to the inverter control circuit.
  • a second noise filter may be provided between the insulated DC-DC converter and the inverter control circuit.
  • the one place is connected using one of two choke coils included in a common mode filter, and
  • the other of the two choke coils may be provided between the insulated DC-DC converter and the inverter control circuit in a path for supplying power from the insulated DC-DC converter to the inverter control circuit.
  • the one place includes an insulated DC-DC converter and an inverter control circuit. It may be one place on the circuit board.
  • the compressor control circuit includes an inverter main circuit that is controlled by the inverter control circuit and drives a compressor motor. It may be.
  • a compressor including the compressor control circuit according to any one of the first to seventh aspects, a compressor motor controlled by the compressor control circuit, and the compression A compressor that operates by a machine motor and compresses the refrigerant.
  • a vehicle is a high-voltage power supply to which the compressor control circuit according to any one of the first to seventh aspects and an inverter control circuit included in the compressor control circuit are connected. And a traveling motor driven by the motor.
  • a vehicle 1 according to the first embodiment of the present invention includes a travel motor 2, an air conditioning system 3, a high voltage power supply 40, a vehicle isolated DC-DC converter 50, A voltage power supply 60 and a traveling motor control circuit 70 are provided.
  • the traveling motor 2 is a motor for traveling the vehicle 1.
  • the traveling motor 2 operates by receiving electric power from a high voltage power source 40 described later.
  • the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, and a vehicle air conditioning controller 30.
  • the inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
  • the compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
  • the circuit board 100 includes a ground GNDH pattern wiring of a later-described high-voltage power supply system, a ground GNDL pattern wiring of a later-described lower-voltage power supply, a ground GNDH pattern wiring, and a ground GNDL pattern wiring. And a pattern wiring of ground GNDC independent from each other. The pattern wiring of the ground GNDC is connected to the pattern wiring of the ground GNDH only at one place on the circuit board 100.
  • the circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105, which will be described later.
  • Insulated DC-DC converter 101 receives a DC voltage from low-voltage power supply 60.
  • the direct current voltage received by the isolated DC-DC converter 101 from the low voltage power supply 60 is, for example, 12 volts.
  • Insulated DC-DC converter 101 generates a DC voltage for driving inverter control circuit 104 from the received DC voltage.
  • the operating frequency of the isolated DC-DC converter 101 is a high frequency band (for example, a frequency band on the order of megahertz).
  • Isolated DC-DC converter 101 outputs the generated DC voltage to inverter control circuit 104.
  • the ground terminal on the input side of the insulated DC-DC converter 101 is connected to the pattern wiring of the ground GNDL on the circuit board 100.
  • the communication circuit 102 receives a DC voltage from the low voltage power supply 60.
  • the communication circuit 102 transmits a control signal from the vehicle air conditioning controller 30 described later to the insulating element 103.
  • the ground terminal of the communication circuit 102 is connected to the pattern wiring of the ground GNDL on the circuit board 100.
  • the insulating element 103 receives a control signal from the communication circuit 102.
  • the insulating element 103 transmits the received control signal to the inverter control circuit 104.
  • the insulating element 103 is, for example, a photocoupler.
  • the ground terminal on the input side of the insulating element 103 is connected to the pattern wiring of the ground GNDL on the circuit board 100.
  • the ground terminal on the output side of the insulating element 103 is connected to the pattern wiring of the ground GNDH on the circuit board 100.
  • the inverter control circuit 104 receives the DC voltage generated by the isolated DC-DC converter 101.
  • the inverter control circuit 104 receives a control signal from the insulating element 103.
  • the inverter control circuit 104 controls the inverter main circuit 105 based on the received control signal.
  • the ground terminal of the inverter control circuit 104 is connected to the pattern wiring of the ground GNDH on the circuit board 100.
  • Inverter main circuit 105 receives a DC voltage from high-voltage power supply 40.
  • the inverter main circuit 105 drives the compressor motor 106 based on the control by the inverter control circuit 104.
  • the operating frequency of the inverter main circuit 105 is a low frequency band (for example, a frequency band on the order of kilohertz).
  • the ground terminal of the inverter main circuit 105 is connected to the pattern wiring of the ground GNDH on the circuit board 100.
  • the compressor motor 106 is driven by the inverter main circuit 105.
  • the compressor motor 106 compresses the refrigerant in the compressor 107.
  • the compressor 107 compresses the refrigerant by the operation of the compressor motor 106.
  • the heat exchanger system device 20 takes in the refrigerant compressed by the compressor 107.
  • the heat exchanger system device 20 performs heat exchange between the taken-in refrigerant and outside air.
  • the vehicle air conditioning controller 30 communicates with the communication circuit 102.
  • the vehicle air conditioning controller 30 transmits a control signal of the air conditioner according to the operation by the user to the communication circuit 102.
  • the ground terminal of the vehicle air conditioning controller 30 is connected to the ground GNDL.
  • the high-voltage power supply 40 outputs a direct-current voltage to the inverter main circuit 105 and the vehicle isolated DC-DC converter 50 described later. Further, the high voltage power supply 40 supplies electric power to the traveling motor 2 used for traveling the vehicle 1 via a traveling motor control circuit 70 described later.
  • the DC voltage output from the high voltage power supply 40 is, for example, 100 to 300 volts.
  • the DC voltage output from the high voltage power supply 40 is, for example, 48 volts.
  • the ground terminal of the high voltage power supply 40 is connected to the ground GNDH.
  • the path for transmitting the DC voltage from the high voltage power supply 40 to the inverter-integrated electric compressor 10 may be a shielded cable.
  • the vehicle isolated DC-DC converter 50 receives a DC voltage from the high voltage power supply 40.
  • the vehicle isolated DC-DC converter 50 generates a DC voltage for charging the low voltage power supply 60 from the received DC voltage.
  • the vehicle isolated DC-DC converter 50 outputs the generated DC voltage to the low voltage power supply 60.
  • the ground on the input side of the vehicle isolated DC-DC converter 50 is connected to the ground GNDH.
  • the ground terminal on the output side of the vehicle isolated DC-DC converter 50 is connected to the ground GNDL.
  • the low voltage power supply 60 receives a direct current voltage from the vehicle isolated DC-DC converter 50.
  • the low voltage power supply 60 performs charging using the received DC voltage.
  • the low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101, the communication circuit 102, and the vehicle air conditioning controller 30.
  • the low voltage power supply 60 outputs a DC voltage to accessories such as audio provided in the vehicle 1.
  • the DC voltage output from the low voltage power supply 60 is, for example, 12 volts.
  • the ground terminal of the low voltage power supply 60 is connected to the ground GNDL.
  • the traveling motor control circuit 70 receives a DC voltage from the high voltage power supply 40, converts the received voltage into electric power for traveling the traveling motor 2, and supplies the electric power to the traveling motor 2.
  • the functional part within the broken line indicated by the symbol A is a system of the high voltage power supply 40.
  • the functional units within the broken line indicated by the symbol B are the low-voltage power supply 60 system.
  • the pattern wiring of the ground GNDC in the first embodiment of the present invention is connected to the pattern wiring of the ground GNDH only at one place on the circuit board 100.
  • the isolated DC-DC converter 101 includes a control circuit 1011, an insulating transformer 1012, a rectifier circuit 1013a, a rectifier circuit 1013b, a smoothing circuit 1014a, And a smoothing circuit 1014b.
  • FIG. 2 also shows a low-voltage power supply 60, a noise filter 70, a capacitor 80, a zero-ohm resistor 90, a ground GNDC pattern wiring PT1, and a ground GNDH pattern wiring PT2 together with the isolated DC-DC converter 101. Is shown.
  • the low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80, which are not shown in FIG.
  • the control circuit 1011 controls the current that flows in the primary coil L1 of the insulation transformer 1012 described later.
  • the insulation transformer 1012 includes a primary coil L1, a secondary coil L2a, and a secondary coil L2b.
  • the primary coil L1 flows a current based on control by the control circuit 1011.
  • the secondary coil L2a of the insulation transformer 1012 causes a current corresponding to the winding ratio between the primary coil L1 and the secondary coil L2a and the current flowing through the primary coil L1 to flow by electromagnetic induction.
  • the rectifier circuit 1013a rectifies the current flowing through the secondary coil L2a.
  • the rectifier circuit 1013a is, for example, a diode.
  • the smoothing circuit 1014a is charged using the current flowing from the rectifier circuit 1013a.
  • the smoothing circuit 1014a discharges the load of the isolated DC-DC converter 101 when there is no current flowing from the rectifier circuit 1013a and the load of the isolated DC-DC converter 101 requires current.
  • the smoothing circuit 1014a is, for example, a capacitor.
  • the secondary coil L2b of the insulation transformer 1012 passes a current corresponding to the winding number ratio between the primary coil L1 and the secondary coil L2a and the current flowing through the primary coil L1.
  • the rectifier circuit 1013b rectifies the current that the secondary coil L2b flows.
  • the rectifier circuit 1013b is, for example, a diode.
  • the smoothing circuit 1014b is charged using the current flowing from the rectifier circuit 1013b.
  • the smoothing circuit 1014b discharges the load of the isolated DC-DC converter 101 when there is no current flowing from the rectifier circuit 1013b and the load of the isolated DC-DC converter 101 requires current.
  • the smoothing circuit 1014b is, for example, a capacitor.
  • the pattern wiring PT1 of the ground GNDC included in the circuit board 100 is one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary coil L2b, one end of the smoothing circuit 1014b, and one end of the zero ohm resistor 90. It is an area connected to each of the above.
  • the pattern wiring PT2 of the ground GNDH provided in the circuit board 100 is a region connected to the other end of the zero ohm resistor 90 in FIG.
  • the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by a zero ohm resistor 90 at one place on the circuit board 100 as shown in FIG.
  • the pattern wiring PT1 of the ground GNDC is independent from the pattern wiring PT2 of the ground GNDH and the pattern wiring PT3 of the ground GNDL.
  • each of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH has a connection region 200 (for example, a pad or a land) for connecting the zero ohm resistor 90 and its own ground. is doing.
  • the zero ohm resistor 90 is soldered to each connection region 200 of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH. As described above, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the zero ohm resistor 90 at one place on the circuit board 100.
  • the compressor control circuit 11 reduces the path through which noise in the frequency band of the order of megahertz generated by the isolated DC-DC converter 101 propagates to the inverter main circuit 105 via the inverter control circuit 104.
  • the compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system.
  • the compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • connection between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH is not limited to that performed by the zero ohm resistor 90.
  • the connection between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH may be performed by a jumper line having a small resistance value.
  • the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
  • the insulated DC-DC converter 101 the primary side circuit (input side) and the secondary side circuit (output side) are insulated.
  • the inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101.
  • the circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104.
  • the circuit board 100 includes a pattern wiring PT1 of ground GNDC.
  • the ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing.
  • the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100.
  • the secondary circuit is connected to the ground GNDC. Specifically, one place on the circuit board 100 is connected using a short-circuit element such as a zero ohm resistor or a jumper wire. In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • the vehicle 1 according to the second embodiment of the present invention includes a travel motor 2 and an air conditioning system 3.
  • the traveling motor 2 is a motor for traveling the vehicle 1.
  • the traveling motor 2 operates by receiving electric power from the high voltage power supply 40.
  • the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, a vehicle air conditioning controller 30, and the like.
  • the inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
  • the compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
  • the circuit board 100 includes a ground GNDH pattern wiring PT2 of the high voltage power supply 40 system, a ground GNDL pattern wiring PT3 of the low voltage power supply 60 system, a ground GNDH pattern wiring PT2, and a ground GNDL pattern wiring PT3. And a pattern wiring PT1 of the ground GNDC independent from each other.
  • the pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
  • the circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
  • the pattern wiring PT1 of the ground GNDC in the second embodiment of the present invention is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
  • the isolated DC-DC converter 101 includes a control circuit 1011, an insulating transformer 1012, a rectifier circuit 1013a, a rectifier circuit 1013b, a smoothing circuit 1014a, And a smoothing circuit 1014b.
  • FIG. 5 shows a low voltage power supply 60, a noise filter 70, a capacitor 80, an inductor 91 (first noise filter), a capacitor 92, a capacitor 93, a ground, together with the isolated DC-DC converter 101.
  • a pattern wiring PT1 of GNDC and a pattern wiring PT2 of ground GNDH are shown.
  • the low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80 for removing noise.
  • the inductor 91 is provided between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH.
  • the inductor 91 forms a noise filter together with the capacitor 92 and the capacitor 93.
  • the inductor 91 is, for example, a chip ferrite bead inductor.
  • the capacitor 92 is provided between the pattern wiring PT1 of the ground GNDC and the ground GNDL.
  • the capacitor 93 is provided between the pattern wiring PT2 of the ground GNDH and the ground GNDL.
  • the pattern wiring PT1 of the ground GNDC included in the circuit board 100 includes one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary coil L2b, one end of the smoothing circuit 1014b, one end of the capacitor 92, and one end of the inductor 91. It is an area connected to each of the above.
  • the ground GNDH pattern wiring PT2 provided in the circuit board 100 is a region connected to one end of the capacitor 93 and the other end of the inductor 91, respectively.
  • the other end of the capacitor 92 and the other end of the capacitor 93 are connected to a pattern wiring that is indirectly or directly connected to the ground GNDL.
  • the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the zero ohm resistor 90 at one place on the circuit board 100 shown in FIG.
  • the inductor 91 is connected at one place on the circuit board 100.
  • the pattern wiring PT1 of the ground GNDC is independent from the pattern wiring PT2 of the ground GNDH and the pattern wiring PT3 of the ground GNDL.
  • the pattern wiring PT1 of the ground GNDC is connected via a capacitor 92 to the pattern wiring PT6 connected to the pattern wiring PT3 of the ground GNDL through a metal screw or the like.
  • the pattern wiring PT2 of the ground GNDH is connected via a capacitor 93 to the pattern wiring PT6 connected to the pattern wiring PT3 of the ground GNDL via a metal screw or the like.
  • each of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH has a connection region 200 (for example, a pad or a land) for connecting the inductor 91 and its own ground. ing.
  • the inductor 91 is soldered to each connection region 200 of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH.
  • the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the inductor 91 at one place on the circuit board 100.
  • the compressor control circuit 11 reduces the path through which noise in the frequency band of the order of megahertz generated by the isolated DC-DC converter 101 propagates to the inverter main circuit 105 via the inverter control circuit 104.
  • the compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system.
  • the compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
  • the insulated DC-DC converter 101 the primary side circuit (input side) and the secondary side circuit (output side) are insulated.
  • the inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101.
  • the circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104.
  • the circuit board 100 includes a pattern wiring PT1 of ground GNDC.
  • the ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing.
  • the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100.
  • the secondary circuit is connected to the ground GNDC. Specifically, for example, one place on the circuit board is connected using a first noise filter such as an inductor 91. In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • ⁇ Third embodiment> The structure of the air conditioning system by 3rd embodiment of this invention is demonstrated. Similar to the vehicle 1 according to the first embodiment of the present invention shown in FIG. 1, the vehicle 1 according to the third embodiment of the present invention includes a travel motor 2 and an air conditioning system 3.
  • the traveling motor 2 is a motor for traveling the vehicle 1.
  • the traveling motor 2 operates by receiving electric power from the high voltage power supply 40.
  • the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, a vehicle air conditioning controller 30, and the like.
  • the inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
  • the compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
  • the circuit board 100 includes a ground GNDH pattern wiring PT2 of the high voltage power supply 40 system, a ground GNDL pattern wiring PT3 of the low voltage power supply 60 system, a ground GNDH pattern wiring PT2, and a ground GNDL pattern wiring PT3. And a pattern wiring PT1 of the ground GNDC independent from each other.
  • the pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
  • the circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
  • the pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100 in the third embodiment of the present invention.
  • the isolated DC-DC converter 101 includes a control circuit 1011, an insulating transformer 1012, a rectifier circuit 1013a, a rectifier circuit 1013b, a smoothing circuit 1014a, And a smoothing circuit 1014b.
  • FIG. 8 shows a low voltage power supply 60, a noise filter 70, a capacitor 80, an inductor 91, a capacitor 92, a capacitor 93, and an inductor 94a (second noise filter) together with the isolated DC-DC converter 101. ), An inductor 94b (one of the second noise filters), a capacitor 95a, a capacitor 95b, a capacitor 96a, a capacitor 96b, a ground GNDC pattern wiring PT1, and a ground GNDH A pattern wiring PT2 is shown.
  • the low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80 for removing noise.
  • the inductor 94a is an inductor similar to the inductor 91.
  • the inductor 94a forms a noise filter together with the capacitor 95a and the capacitor 96a.
  • the inductor 94a is connected to the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern on the load side in a path for supplying power from the insulated DC-DC converter 101 to a load such as the inverter control circuit 104 connected to the ground GNDH. It is provided between the wiring PT5a.
  • the inductor 94a constitutes a common mode filter that, together with the inductor 91, adds the magnetic flux due to the common mode current and acts on the inductor, and cancels the magnetic flux caused by the differential current and removes the noise acting on the inductor.
  • the capacitor 95a is provided between the ground GNDL and the pattern wiring PT4a on the insulated DC-DC converter 101 side.
  • the capacitor 96a is provided between the ground GNDL and the pattern wiring PT5a on the load side.
  • the inductor 94b is an inductor similar to the inductor 91.
  • the inductor 94b forms a noise filter together with the capacitor 95b and the capacitor 96b.
  • the inductor 94b is connected to the pattern wiring PT4b on the insulated DC-DC converter 101 side and the pattern on the load side in a path for supplying power from the insulated DC-DC converter 101 to a load such as the inverter control circuit 104 connected to the ground GNDH. It is provided between the wiring PT5b.
  • the inductor 94b forms a common mode filter together with the inductor 91.
  • the capacitor 95b is provided between the ground GNDL and the pattern wiring PT4b on the insulated DC-DC converter 101 side.
  • the capacitor 96b is provided between the ground GNDL and the pattern wiring PT5b on the load side.
  • the pattern wiring PT1 of the ground GNDC included in the circuit board 100 includes one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary side coil L2b, one end of the smoothing circuit 1014b, both ends of the capacitor 92, and one end of the inductor 91. It is an area connected to each of the above.
  • the pattern wiring PT2 of the ground GNDH included in the circuit board 100 is a region connected to both ends of the capacitor 93, the other end of the inductor 91, one end of the capacitor 96a, and one end of the capacitor 96b.
  • the pattern wiring PT4a on the insulated DC-DC converter 101 side included in the circuit board 100 is a region connected to one end of the rectifier circuit 1013a, the other end of the smoothing circuit 1014a, one end of the capacitor 95a, and one end of the inductor 94a. .
  • the load-side pattern wiring PT5a included in the circuit board 100 is a region connected to the other end of the inductor 94a and one end of the capacitor 96a.
  • the pattern wiring PT4b on the insulating DC-DC converter 101 side included in the circuit board 100 is a region connected to one end of the rectifier circuit 1013b, the other end of the smoothing circuit 1014b, one end of the capacitor 95b, and one end of the inductor 94b. .
  • the load-side pattern wiring PT5b provided in the circuit board 100 is a region connected to the other end of the inductor 94b and one end of the capacitor 96b.
  • the other end of the capacitor 95a, the other end of the capacitor 95b, the other end of the capacitor 96a, and the other end of the capacitor 96b are connected to a pattern wiring that is indirectly or directly connected to the ground GNDL.
  • the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are arranged at one place on the circuit board 100 as in the connection in the second embodiment of the present invention shown in FIG. And connected by an inductor 94a.
  • the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected by an inductor 91 at one place on the circuit board 100 as shown in FIG.
  • each of the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side has a connection region for connecting the inductor 94a and its own pattern wiring as shown in FIG. 200 (for example, a pad or a land).
  • the inductor 94a is soldered to each connection region 200 of the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side.
  • the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected at one place on the circuit board 100 by the inductor 94a.
  • the pattern wiring PT4b on the insulated DC-DC converter 101 side and the pattern wiring PT5b on the load side are connected at one place on the circuit board 100 by an inductor 94b.
  • the compressor control circuit 11 is provided with a noise filter on each of the ground side and the power supply side to the load to constitute a common mode filter.
  • the compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system.
  • the compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
  • the insulated DC-DC converter 101 the primary side circuit (input side) and the secondary side circuit (output side) are insulated.
  • the inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101.
  • the circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104.
  • the circuit board 100 includes a pattern wiring PT1 of ground GNDC.
  • the ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing.
  • the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100.
  • the secondary circuit is connected to the ground GNDC. Specifically, for example, one place on the circuit board is connected using a first noise filter such as an inductor 91.
  • one place on the circuit board is further provided between the insulation type DC-DC converter 101 and the inverter control circuit 104 in a path for supplying power from the insulation type DC-DC converter 101 to the inverter control circuit 104.
  • a second noise filter similar to the noise filter is provided. In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • ⁇ Fourth embodiment> The structure of the air conditioning system by 4th embodiment of this invention is demonstrated. Similar to the vehicle 1 according to the first embodiment of the present invention shown in FIG. 1, the vehicle 1 according to the fourth embodiment of the present invention includes a travel motor 2 and an air conditioning system 3.
  • the traveling motor 2 is a motor for traveling the vehicle 1.
  • the traveling motor 2 operates by receiving electric power from the high voltage power supply 40.
  • the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, a vehicle air conditioning controller 30, and the like.
  • the inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
  • the compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
  • the circuit board 100 includes a ground GNDH pattern wiring PT2 of the high voltage power supply 40 system, a ground GNDL pattern wiring PT3 of the low voltage power supply 60 system, a ground GNDH pattern wiring PT2, and a ground GNDL pattern wiring PT3. And a pattern wiring PT1 of the ground GNDC independent from each other.
  • the pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
  • the circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
  • the pattern wiring PT1 of the ground GNDC in the fourth embodiment of the present invention is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
  • the insulation type DC-DC converter 101 includes a control circuit 1011, an insulation transformer 1012, a rectifier circuit 1013 a, and a smoothing circuit 1014 a.
  • FIG. 10 shows the low-voltage power supply 60, the noise filter 70, the capacitor 80, the common mode filter 97, the capacitor 98a, the capacitor 98b, the capacitor 99b, the capacitor, together with the isolated DC-DC converter 101. 99b, a pattern wiring PT1 of the ground GNDC, and a pattern wiring PT2 of the ground GNDH are shown.
  • the low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80 for removing noise.
  • the common mode filter 97 includes a first choke coil L11 and a second choke coil L12.
  • the common mode filter 97 adds the magnetic flux due to the common mode current to act on the inductor, and cancels the magnetic flux due to the differential current to remove the noise acting on the inductor.
  • the first choke coil L11 is provided between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH.
  • the second choke coil L12 is connected to the pattern wiring PT4a on the insulated DC-DC converter 101 side and the load in a path for supplying power from the insulated DC-DC converter 101 to a load such as the inverter control circuit 104 connected to the ground GNDH. It is provided between the pattern wiring PT5a on the side.
  • the capacitor 98a is provided between the pattern wiring PT1 of the ground GNDC and the ground GNDL.
  • the capacitor 99a is provided between the pattern wiring PT2 of the ground GNDH and the ground GNDL.
  • the capacitor 98b is provided between the ground GNDL and the pattern wiring PT4a on the insulated DC-DC converter 101 side.
  • the capacitor 99b is provided between the ground GNDL and the pattern wiring PT5a on the load side.
  • the pattern wiring PT1 of the ground GNDC included in the circuit board 100 is respectively connected to one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary coil L2b, one end of the capacitor 98a, and one end of the first choke coil L11. It is a connected area.
  • the pattern wiring PT2 of the ground GNDH provided in the circuit board 100 is a region connected to the other end of the first choke coil L11 and one end of the capacitor 99a.
  • the pattern wiring PT4a on the insulated DC-DC converter 101 side included in the circuit board 100 is connected to one end of the rectifier circuit 1013a, the other end of the smoothing circuit 1014a, one end of the capacitor 98b, and one end of the second choke coil L12. It is an area.
  • the pattern wiring PT5a on the load side provided in the circuit board 100 is a region connected to the other end of the second choke coil L12 and one end of the capacitor 99b.
  • Each of the other end of the capacitor 98a, the other end of the capacitor 98b, the other end of the capacitor 99a, and the other end of the capacitor 99b is connected to a pattern wiring that is indirectly or directly connected to the ground GNDL.
  • the cut-off frequency of the common mode filter is determined by the capacitance values of the capacitors 98a, 98b, 99a, and 99b.
  • the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by a common mode filter 97 at one place on the circuit board 100 as shown in FIG.
  • the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected by a common mode filter 97 at one place on the circuit board 100 as shown in FIG.
  • each of the ground GNDC pattern wiring PT1, the ground GNDH pattern wiring PT2, the insulating DC-DC converter 101 side pattern wiring PT4a, and the load side pattern wiring PT5a as shown in FIG.
  • a connection region 200 for example, a pad or a land for connecting the mode filter 97 and its own pattern wiring is provided.
  • the common mode filter 97 is soldered to each connection region 200 of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH. In this way, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the common mode filter 97 at one place on the circuit board 100.
  • the common mode filter 97 is soldered to each connection region 200 of the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side. As described above, the pattern wiring PT4a on the insulating DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected by the common mode filter 97 at one place on the circuit board 100.
  • the compressor control circuit 11 is provided with the common mode filter on the ground side and the power supply side to the load, so that the noise in the frequency band of the order of megahertz generated in the isolated DC-DC converter 101 can be reduced.
  • the number of paths that propagate to the inverter main circuit 105 via the control circuit 104 is reduced.
  • the compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system.
  • the compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
  • the insulated DC-DC converter 101 the primary side circuit (input side) and the secondary side circuit (output side) are insulated.
  • the inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101.
  • the circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104.
  • the circuit board 100 includes a pattern wiring PT1 of ground GNDC.
  • the ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing.
  • the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100.
  • An m secondary side circuit is connected to the ground GNDC. Specifically, for example, one place on the circuit board 100 is connected using the first choke coil L11 included in the common mode filter 97, and power is supplied from the isolated DC-DC converter 101 to the inverter control circuit 104.
  • the second choke coil L12 is provided between the insulated DC-DC converter 101 and the inverter control circuit 104 in the path for supplying the current. In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
  • each of the capacitors 92, 93, 95 a, 95 b, 96 a, 96 b, 98 a, 98 b, 99 a, 99 b has been described as an individual component capacitor, but is not limited to an individual component capacitor.
  • each of the capacitors 92, 93, 95a, 95b, 96a, 96b, 98a, 98b, 99a, 99b may be a parasitic element capacitor caused by wiring or the like.
  • the air conditioning system 3 may be provided in a vehicle 1 such as an automobile, a train, or a ship.
  • the order of processing may be changed within a range where appropriate processing is performed.
  • Each of the storage units in the present invention may be provided anywhere as long as appropriate information is transmitted and received.
  • Each of the storage units may exist in a range in which appropriate information is transmitted and received, and data may be distributed and stored.
  • each of the devices in the vehicle 1 described above may have a computer system therein.
  • the process described above is stored in a computer-readable recording medium in the form of a program, and the above process is performed by the computer reading and executing this program.
  • the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like.
  • the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.
  • the above program may realize part of the functions described above. Further, the program may be a so-called difference file (difference program) that can realize the above-described functions in combination with a program already recorded in the computer system.
  • difference file difference program
  • the emission of electromagnetic noise can be prevented in a vehicle with a simple configuration.
  • Air Conditioning System 10 Inverter-integrated Electric Compressor 11 Compressor Control Circuit 20 Heat Exchanger System 30 Vehicle Air Conditioning Controller 40 High Voltage Power Supply 50 Insulated DC-DC Converter 60 for Vehicle Low Voltage Power Supply 70 Noise Filters 80, 92, 93, 95a, 95b, 96a, 96b, 98a, 98b, 99a, 99b Capacitor 90 Zero ohm resistor 91, 94a, 94b Inductor 97 Common mode filter 100...
  • Circuit board 101 Insulation type DC-DC converter 102 Communication circuit 103 Insulation element 104 Inverter control circuit 105 Inverter main circuit 106 Compressor motor 107 Compressor 200 Connection area 1011 Control circuit 1012 Insulation transformer 1013a, 1013b Rectifier circuit 1014a, 1014 Smoothing circuit

Abstract

A compressor control circuit (11) is provided with: an insulation-type DC-DC converter (50); an inverter control circuit (104); and a circuit board (100). In the insulation-type DC-DC converter (50), a primary side circuit and a secondary side circuit are insulated. The circuit board (100) is provided with a ground pattern wiring which is independent from a ground pattern wiring for a low voltage power source (60) system to which the primary side circuit is connected, and from a ground pattern wiring for a high-voltage power source (40) system to which the inverter control circuit (104) is connected, wherein a secondary side circuit, which is connected to the ground pattern wiring for the high-voltage power source (40) system only at one portion on the circuit board, is connected.

Description

圧縮機制御回路、圧縮装置及び車両Compressor control circuit, compressor and vehicle
　本発明は、圧縮機制御回路、圧縮装置及び車両に関する。
　本願は、２０１６年３月２９日に出願された特願２０１６－０６６５７７号について優先権を主張し、その内容をここに援用する。 The present invention relates to a compressor control circuit, a compression device, and a vehicle.
This application claims priority on Japanese Patent Application No. 2016-0666577 filed on Mar. 29, 2016, the contents of which are incorporated herein by reference.
　ハイブリッド自動車や電気自動車は、さまざまな電子機器を備えている。そのため、ハイブリッド自動車や電気自動車など、電子機器を備える車両では、ＥＭＣ（Ｅｌｅｃｔｒｏ　Ｍａｇｎｅｔｉｃ　Ｃｏｍｐａｔｉｂｉｌｉｔｙ）を考慮した設計を行う必要がある。
　特許文献１には、関連する技術として、車両から放射する放射ノイズを低減させる技術が記載されている。 Hybrid vehicles and electric vehicles are equipped with various electronic devices. Therefore, it is necessary to design in consideration of EMC (Electro Magnetic Compatibility) in a vehicle including an electronic device such as a hybrid vehicle or an electric vehicle.
Patent Document 1 describes a technique for reducing radiation noise radiated from a vehicle as a related technique.
特許第５４４８７９７号公報Japanese Patent No. 54489797
　ハイブリッド自動車や電気自動車では、インバータが圧縮機のハウジングに一体的に組み込まれたインバータ一体型電動圧縮装置が用いられる場合がある。
　この場合、圧縮機モータを回転させる電流を生成するインバータ主回路には、車両を走行させるために用いられるモータなどを動作させるための高電圧電源から電力が供給される。また、インバータ主回路を制御するインバータ制御回路には、オーディオなどのアクセサリを動作させるための低電圧電源からＤＣ（Ｄｉｒｅｃｔ　Ｃｕｒｒｅｎｔ、直流）電圧を生成する絶縁型ＤＣ－ＤＣコンバータから電力が供給される。インバータ主回路とインバータ制御回路は、インバータを構成する回路であり、高電圧電源系のグラウンドに接続されている。
　ここで、インバータ主回路の動作周波数は、低周波帯（例えば、キロヘルツのオーダの周波数帯）である。また、絶縁型ＤＣ－ＤＣコンバータの動作周波数は、高周波帯（例えば、メガヘルツのオーダの周波数帯）である。そのため、絶縁型ＤＣ－ＤＣコンバータで発生したメガヘルツのオーダの周波数帯のノイズが、インバータ制御回路を介してインバータ主回路へ伝播し、高電圧電源の系統と低電圧電源の系統とによる回路においてループが形成されることにより外部に放出される可能性がある。
　そのため、車両において、簡易な構成で電磁ノイズの放出を防止することのできる技術が求められていた。 In hybrid vehicles and electric vehicles, an inverter-integrated electric compressor in which an inverter is integrated into a compressor housing may be used.
In this case, power is supplied to the inverter main circuit that generates a current for rotating the compressor motor from a high voltage power source for operating a motor or the like used for running the vehicle. The inverter control circuit that controls the inverter main circuit is supplied with power from an isolated DC-DC converter that generates a DC (Direct Current) voltage from a low-voltage power source for operating accessories such as audio. . The inverter main circuit and the inverter control circuit are circuits constituting the inverter, and are connected to the ground of the high voltage power supply system.
Here, the operating frequency of the inverter main circuit is a low frequency band (for example, a frequency band on the order of kilohertz). The operating frequency of the isolated DC-DC converter is a high frequency band (for example, a frequency band on the order of megahertz). As a result, noise in the frequency band of the order of megahertz generated by the isolated DC-DC converter propagates to the inverter main circuit via the inverter control circuit, and loops in the circuit composed of the high-voltage power supply system and the low-voltage power supply system. May be released to the outside.
Therefore, there has been a demand for a technique that can prevent the emission of electromagnetic noise with a simple configuration in a vehicle.
　本発明は、上記の課題を解決することのできる圧縮機制御回路、圧縮装置及び車両を提供する。 The present invention provides a compressor control circuit, a compression device, and a vehicle that can solve the above-described problems.
　本発明の第１の態様によれば、圧縮機制御回路は、一次側回路と二次側回路とが絶縁されている絶縁型ＤＣ－ＤＣコンバータと、前記絶縁型ＤＣ－ＤＣコンバータから電力が供給されるインバータ制御回路と、を備え、前記インバータ制御回路が接続される高電圧電源の系統のグラウンドのパターン配線と、前記一次側回路が接続される低電圧電源の系統のグラウンドのパターン配線、及び、前記インバータ制御回路が接続される高電圧電源の系統のグラウンドのパターン配線から独立し、前記二次側回路が接続されるグラウンドのパターン配線とが、１か所のみで接続される。 According to the first aspect of the present invention, the compressor control circuit includes an insulated DC-DC converter in which a primary circuit and a secondary circuit are insulated, and power is supplied from the insulated DC-DC converter. An inverter control circuit, and a ground pattern wiring of a high voltage power supply system to which the inverter control circuit is connected, a ground pattern wiring of a low voltage power supply system to which the primary side circuit is connected, and Independently from the ground pattern wiring of the high-voltage power supply system to which the inverter control circuit is connected, the ground pattern wiring to which the secondary circuit is connected is connected at only one place.
　本発明の第２の態様によれば、第１の態様における圧縮機制御回路において、前記１か所は、短絡用素子を用いて接続されていてもよい。 According to the second aspect of the present invention, in the compressor control circuit according to the first aspect, the one place may be connected using a short-circuit element.
　本発明の第３の態様によれば、第１の態様における圧縮機制御回路において、前記１か所は、第１ノイズフィルタを用いて接続されていてもよい。 According to the third aspect of the present invention, in the compressor control circuit according to the first aspect, the one place may be connected using a first noise filter.
　本発明の第４の態様によれば、第３の態様における圧縮機制御回路において、前記１か所は、さらに、前記絶縁型ＤＣ－ＤＣコンバータから前記インバータ制御回路へ電力を供給する経路において前記絶縁型ＤＣ－ＤＣコンバータと前記インバータ制御回路との間に第２ノイズフィルタが設けられていてもよい。 According to a fourth aspect of the present invention, in the compressor control circuit according to the third aspect, the one place is further provided in a path for supplying electric power from the insulated DC-DC converter to the inverter control circuit. A second noise filter may be provided between the insulated DC-DC converter and the inverter control circuit.
　本発明の第５の態様によれば、第１の態様における圧縮機制御回路において、前記１か所は、コモンモードフィルタが含む２つのチョークコイルのうちの一方を用いて接続され、かつ、前記絶縁型ＤＣ－ＤＣコンバータから前記インバータ制御回路へ電力を供給する経路において前記絶縁型ＤＣ－ＤＣコンバータと前記インバータ制御回路との間に前記２つのチョークコイルのうちの他方が設けられていてもよい。 According to a fifth aspect of the present invention, in the compressor control circuit according to the first aspect, the one place is connected using one of two choke coils included in a common mode filter, and The other of the two choke coils may be provided between the insulated DC-DC converter and the inverter control circuit in a path for supplying power from the insulated DC-DC converter to the inverter control circuit. .
　本発明の第６の態様によれば、第１の態様から第５の態様の何れかにおける圧縮機制御回路は、前記１か所は、絶縁型ＤＣ－ＤＣコンバータとインバータ制御回路とが搭載された回路基板上の１か所であってもよい。 According to a sixth aspect of the present invention, in the compressor control circuit according to any one of the first to fifth aspects, the one place includes an insulated DC-DC converter and an inverter control circuit. It may be one place on the circuit board.
　本発明の第７の態様によれば、第１の態様から第６の態様の何れかにおける圧縮機制御回路は、前記インバータ制御回路により制御され、圧縮機モータを駆動するインバータ主回路、を備えていてもよい。 According to a seventh aspect of the present invention, the compressor control circuit according to any one of the first to sixth aspects includes an inverter main circuit that is controlled by the inverter control circuit and drives a compressor motor. It may be.
　本発明の第８の態様によれば、圧縮装置は、第１の態様から第７の態様の何れかの圧縮機制御回路と、前記圧縮機制御回路によって制御される圧縮機モータと、前記圧縮機モータによって動作し、冷媒を圧縮する圧縮機と、を備える。 According to an eighth aspect of the present invention, there is provided a compressor including the compressor control circuit according to any one of the first to seventh aspects, a compressor motor controlled by the compressor control circuit, and the compression A compressor that operates by a machine motor and compresses the refrigerant.
　本発明の第９の態様によれば、車両は、第１の態様から第７の態様の何れかの圧縮機制御回路と、前記圧縮機制御回路の備えるインバータ制御回路が接続される高電圧電源によって駆動される走行用モータと、を備える。 According to a ninth aspect of the present invention, a vehicle is a high-voltage power supply to which the compressor control circuit according to any one of the first to seventh aspects and an inverter control circuit included in the compressor control circuit are connected. And a traveling motor driven by the motor.
　本発明の実施形態による圧縮機制御回路及び圧縮装置によれば、車両において、簡易な構成で電磁ノイズの放出を防止することができる。 According to the compressor control circuit and the compression device according to the embodiment of the present invention, emission of electromagnetic noise can be prevented with a simple configuration in a vehicle.
本発明の第一の実施形態による車両の構成を示す図である。It is a figure showing composition of vehicles by a first embodiment of the present invention. 本発明の第一の実施形態による絶縁型ＤＣ－ＤＣコンバータのグラウンドの接続を説明するための図である。It is a figure for demonstrating the connection of the ground of the insulation type DC-DC converter by 1st embodiment of this invention. 本発明の第一の実施形態におけるグラウンドパターン配線の例を示す図である。It is a figure which shows the example of the ground pattern wiring in 1st embodiment of this invention. 本発明の第一の実施形態におけるパターン配線どうしの接続の例を示す図である。It is a figure which shows the example of the connection of the pattern wiring in 1st embodiment of this invention. 本発明の第二の実施形態による絶縁型ＤＣ－ＤＣコンバータのグラウンドの接続を説明するための図である。It is a figure for demonstrating the connection of the ground of the insulation type DC-DC converter by 2nd embodiment of this invention. 本発明の第二の実施形態におけるグラウンドパターン配線の例を示す図である。It is a figure which shows the example of the ground pattern wiring in 2nd embodiment of this invention. 本発明の第二の実施形態におけるパターン配線どうしの接続の例を示す図である。It is a figure which shows the example of the connection of the pattern wiring in 2nd embodiment of this invention. 本発明の第三の実施形態による絶縁型ＤＣ－ＤＣコンバータのグラウンドの接続を説明するための図である。It is a figure for demonstrating the connection of the ground of the insulation type DC-DC converter by 3rd embodiment of this invention. 本発明の第三の実施形態におけるパターン配線どうしの接続の例を示す図である。It is a figure which shows the example of the connection of the pattern wiring in 3rd embodiment of this invention. 本発明の第四の実施形態による絶縁型ＤＣ－ＤＣコンバータのグラウンドの接続を説明するための図である。It is a figure for demonstrating the connection of the ground of the insulation type DC-DC converter by 4th embodiment of this invention. 本発明の第四の実施形態におけるパターン配線どうしの接続の例を示す図である。It is a figure which shows the example of the connection of the pattern wiring in 4th embodiment of this invention.
＜第一の実施形態＞
　以下、本発明の第一の実施形態による車両の構成について説明する。
　本発明の第一の実施形態による車両１は、図１に示すように、走行用モータ２と、空気調和システム３と、高電圧電源４０と、車両用絶縁型ＤＣ－ＤＣコンバータ５０と、低電圧電源６０と、走行用モータ制御回路７０と、を備える。 <First embodiment>
The configuration of the vehicle according to the first embodiment of the present invention will be described below.
As shown in FIG. 1, a vehicle 1 according to the first embodiment of the present invention includes a travel motor 2, an air conditioning system 3, a high voltage power supply 40, a vehicle isolated DC-DC converter 50, A voltage power supply 60 and a traveling motor control circuit 70 are provided.
　走行用モータ２は、車両１を走行させるためのモータである。
　走行用モータ２は、後述する高電圧電源４０から電力を受けて動作する。 The traveling motor 2 is a motor for traveling the vehicle 1.
The traveling motor 2 operates by receiving electric power from a high voltage power source 40 described later.
　空気調和システム３は、図１に示すように、インバータ一体型電動圧縮装置１０と、熱交換器系機器２０と、車両空調コントローラ３０と、を備える。 As shown in FIG. 1, the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, and a vehicle air conditioning controller 30.
　インバータ一体型電動圧縮装置１０は、圧縮機制御回路１１と、圧縮機モータ１０６と、圧縮機１０７と、を備える。 The inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
　圧縮機制御回路１１は、回路基板１００と、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、を備える。 The compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
　回路基板１００は、後述する高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線と、後述する低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線と、グラウンドＧＮＤＨのパターン配線及びグラウンドＧＮＤＬのパターン配線のそれぞれから独立したグラウンドＧＮＤＣのパターン配線と、を備える。
　グラウンドＧＮＤＣのパターン配線は、グラウンドＧＮＤＨのパターン配線と回路基板１００上の１か所でのみ接続されている。
　なお、回路基板１００には、後述する絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、が搭載されている。 The circuit board 100 includes a ground GNDH pattern wiring of a later-described high-voltage power supply system, a ground GNDL pattern wiring of a later-described lower-voltage power supply, a ground GNDH pattern wiring, and a ground GNDL pattern wiring. And a pattern wiring of ground GNDC independent from each other.
The pattern wiring of the ground GNDC is connected to the pattern wiring of the ground GNDH only at one place on the circuit board 100.
The circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105, which will be described later.
　絶縁型ＤＣ－ＤＣコンバータ１０１は、低電圧電源６０から直流電圧を受ける。絶縁型ＤＣ－ＤＣコンバータ１０１が低電圧電源６０から受ける直流電圧は、例えば、１２ボルトである。
　絶縁型ＤＣ－ＤＣコンバータ１０１は、受けた直流電圧からインバータ制御回路１０４を駆動する直流電圧を生成する。
　絶縁型ＤＣ－ＤＣコンバータ１０１の動作周波数は、高周波帯（例えば、メガヘルツのオーダの周波数帯）である。
　絶縁型ＤＣ－ＤＣコンバータ１０１は、生成した直流電圧をインバータ制御回路１０４に出力する。
　絶縁型ＤＣ－ＤＣコンバータ１０１の入力側のグラウンド端子は、回路基板１００上でグラウンドＧＮＤＬのパターン配線に接続されている。 Insulated DC-DC converter 101 receives a DC voltage from low-voltage power supply 60. The direct current voltage received by the isolated DC-DC converter 101 from the low voltage power supply 60 is, for example, 12 volts.
Insulated DC-DC converter 101 generates a DC voltage for driving inverter control circuit 104 from the received DC voltage.
The operating frequency of the isolated DC-DC converter 101 is a high frequency band (for example, a frequency band on the order of megahertz).
Isolated DC-DC converter 101 outputs the generated DC voltage to inverter control circuit 104.
The ground terminal on the input side of the insulated DC-DC converter 101 is connected to the pattern wiring of the ground GNDL on the circuit board 100.
　通信回路１０２は、低電圧電源６０から直流電圧を受ける。
　通信回路１０２は、後述する車両空調コントローラ３０からの制御信号を絶縁素子１０３に送信する。
　通信回路１０２のグラウンド端子は、回路基板１００上でグラウンドＧＮＤＬのパターン配線に接続されている。 The communication circuit 102 receives a DC voltage from the low voltage power supply 60.
The communication circuit 102 transmits a control signal from the vehicle air conditioning controller 30 described later to the insulating element 103.
The ground terminal of the communication circuit 102 is connected to the pattern wiring of the ground GNDL on the circuit board 100.
　絶縁素子１０３は、通信回路１０２から制御信号を受信する。
　絶縁素子１０３は、受信した制御信号をインバータ制御回路１０４に送信する。
　絶縁素子１０３は、例えば、フォトカプラである。
　絶縁素子１０３の入力側のグラウンド端子は、回路基板１００上でグラウンドＧＮＤＬのパターン配線に接続されている。
　また、絶縁素子１０３の出力側のグラウンド端子は、回路基板１００上でグラウンドＧＮＤＨのパターン配線に接続されている。 The insulating element 103 receives a control signal from the communication circuit 102.
The insulating element 103 transmits the received control signal to the inverter control circuit 104.
The insulating element 103 is, for example, a photocoupler.
The ground terminal on the input side of the insulating element 103 is connected to the pattern wiring of the ground GNDL on the circuit board 100.
The ground terminal on the output side of the insulating element 103 is connected to the pattern wiring of the ground GNDH on the circuit board 100.
　インバータ制御回路１０４は、絶縁型ＤＣ－ＤＣコンバータ１０１が生成した直流電圧を受ける。
　インバータ制御回路１０４は、絶縁素子１０３から制御信号を受信する。
　インバータ制御回路１０４は、受信した制御信号に基づいて、インバータ主回路１０５を制御する。
　インバータ制御回路１０４のグラウンド端子は、回路基板１００上でグラウンドＧＮＤＨのパターン配線に接続されている。 The inverter control circuit 104 receives the DC voltage generated by the isolated DC-DC converter 101.
The inverter control circuit 104 receives a control signal from the insulating element 103.
The inverter control circuit 104 controls the inverter main circuit 105 based on the received control signal.
The ground terminal of the inverter control circuit 104 is connected to the pattern wiring of the ground GNDH on the circuit board 100.
　インバータ主回路１０５は、高電圧電源４０から直流電圧を受ける。
　インバータ主回路１０５は、インバータ制御回路１０４による制御に基づいて、圧縮機モータ１０６を駆動する。
　インバータ主回路１０５の動作周波数は、低周波帯（例えば、キロヘルツのオーダの周波数帯）である。
　インバータ主回路１０５のグラウンド端子は、回路基板１００上でグラウンドＧＮＤＨのパターン配線に接続されている。 Inverter main circuit 105 receives a DC voltage from high-voltage power supply 40.
The inverter main circuit 105 drives the compressor motor 106 based on the control by the inverter control circuit 104.
The operating frequency of the inverter main circuit 105 is a low frequency band (for example, a frequency band on the order of kilohertz).
The ground terminal of the inverter main circuit 105 is connected to the pattern wiring of the ground GNDH on the circuit board 100.
　圧縮機モータ１０６は、インバータ主回路１０５により駆動される。
　圧縮機モータ１０６は、圧縮機１０７において冷媒を圧縮させる。
　圧縮機１０７は、圧縮機モータ１０６の動作により、冷媒を圧縮する。 The compressor motor 106 is driven by the inverter main circuit 105.
The compressor motor 106 compresses the refrigerant in the compressor 107.
The compressor 107 compresses the refrigerant by the operation of the compressor motor 106.
　熱交換器系機器２０は、圧縮機１０７が圧縮した冷媒を取り込む。
　熱交換器系機器２０は、取り込んだ冷媒と外気との間で熱交換を行う。 The heat exchanger system device 20 takes in the refrigerant compressed by the compressor 107.
The heat exchanger system device 20 performs heat exchange between the taken-in refrigerant and outside air.
　車両空調コントローラ３０は、通信回路１０２と通信を行う。
　車両空調コントローラ３０は、ユーザによる操作に応じた空気調和機の制御信号を通信回路１０２に送信する。
　車両空調コントローラ３０のグラウンド端子は、グラウンドＧＮＤＬに接続されている。 The vehicle air conditioning controller 30 communicates with the communication circuit 102.
The vehicle air conditioning controller 30 transmits a control signal of the air conditioner according to the operation by the user to the communication circuit 102.
The ground terminal of the vehicle air conditioning controller 30 is connected to the ground GNDL.
　高電圧電源４０は、インバータ主回路１０５と、後述する車両用絶縁型ＤＣ－ＤＣコンバータ５０とに直流電圧を出力する。
　また、高電圧電源４０は、後述する走行用モータ制御回路７０を介して、車両１を走行させるために用いられる走行用モータ２に電力を供給する。
　高電圧電源４０が出力する直流電圧は、例えば、１００～３００ボルトである。また、高電圧電源４０が出力する直流電圧は、例えば、４８ボルトである。
　高電圧電源４０のグラウンド端子は、グラウンドＧＮＤＨに接続されている。
　なお、高電圧電源４０からインバータ一体型電動圧縮装置１０へ直流電圧を伝送する経路は、シールドされたケーブルであってもよい。 The high-voltage power supply 40 outputs a direct-current voltage to the inverter main circuit 105 and the vehicle isolated DC-DC converter 50 described later.
Further, the high voltage power supply 40 supplies electric power to the traveling motor 2 used for traveling the vehicle 1 via a traveling motor control circuit 70 described later.
The DC voltage output from the high voltage power supply 40 is, for example, 100 to 300 volts. The DC voltage output from the high voltage power supply 40 is, for example, 48 volts.
The ground terminal of the high voltage power supply 40 is connected to the ground GNDH.
The path for transmitting the DC voltage from the high voltage power supply 40 to the inverter-integrated electric compressor 10 may be a shielded cable.
　車両用絶縁型ＤＣ－ＤＣコンバータ５０は、高電圧電源４０から直流電圧を受ける。
　車両用絶縁型ＤＣ－ＤＣコンバータ５０は、受けた直流電圧から低電圧電源６０を充電する直流電圧を生成する。
　車両用絶縁型ＤＣ－ＤＣコンバータ５０は、生成した直流電圧を低電圧電源６０に出力する。
　車両用絶縁型ＤＣ－ＤＣコンバータ５０の入力側のグラウンドは、グラウンドＧＮＤＨに接続されている。
　また、車両用絶縁型ＤＣ－ＤＣコンバータ５０の出力側のグラウンド端子は、グラウンドＧＮＤＬに接続されている。 The vehicle isolated DC-DC converter 50 receives a DC voltage from the high voltage power supply 40.
The vehicle isolated DC-DC converter 50 generates a DC voltage for charging the low voltage power supply 60 from the received DC voltage.
The vehicle isolated DC-DC converter 50 outputs the generated DC voltage to the low voltage power supply 60.
The ground on the input side of the vehicle isolated DC-DC converter 50 is connected to the ground GNDH.
The ground terminal on the output side of the vehicle isolated DC-DC converter 50 is connected to the ground GNDL.
　低電圧電源６０は、車両用絶縁型ＤＣ－ＤＣコンバータ５０から直流電圧を受ける。
　低電圧電源６０は、受けた直流電圧を用いて充電を行う。
　低電圧電源６０は、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、車両空調コントローラ３０とに直流電圧を出力する。
　また、低電圧電源６０は、車両１に設けられたオーディオなどのアクセサリに直流電圧を出力する。
　低電圧電源６０が出力する直流電圧は、例えば、１２ボルトである。
　低電圧電源６０のグラウンド端子は、グラウンドＧＮＤＬに接続されている。 The low voltage power supply 60 receives a direct current voltage from the vehicle isolated DC-DC converter 50.
The low voltage power supply 60 performs charging using the received DC voltage.
The low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101, the communication circuit 102, and the vehicle air conditioning controller 30.
The low voltage power supply 60 outputs a DC voltage to accessories such as audio provided in the vehicle 1.
The DC voltage output from the low voltage power supply 60 is, for example, 12 volts.
The ground terminal of the low voltage power supply 60 is connected to the ground GNDL.
　走行用モータ制御回路７０は、高電圧電源４０から直流電圧を受け、受けた電圧を走行用モータ２を走行させる電力に変換して走行用モータ２に供給する。 The traveling motor control circuit 70 receives a DC voltage from the high voltage power supply 40, converts the received voltage into electric power for traveling the traveling motor 2, and supplies the electric power to the traveling motor 2.
　なお、図１において、符号Ａで示されている破線内の機能部が高電圧電源４０の系統である。また、図１において、符号Ｂで示されている破線内の機能部が低電圧電源６０の系統である。 In FIG. 1, the functional part within the broken line indicated by the symbol A is a system of the high voltage power supply 40. In FIG. 1, the functional units within the broken line indicated by the symbol B are the low-voltage power supply 60 system.
　次に、本発明の第一の実施形態におけるグラウンドＧＮＤＣのパターン配線がグラウンドＧＮＤＨのパターン配線と回路基板１００上の１か所でのみ接続されていることについて、詳しく説明する。 Next, it will be described in detail that the pattern wiring of the ground GNDC in the first embodiment of the present invention is connected to the pattern wiring of the ground GNDH only at one place on the circuit board 100.
　本発明の第一の実施形態による絶縁型ＤＣ－ＤＣコンバータ１０１は、図２に示すように、制御回路１０１１と、絶縁トランス１０１２と、整流回路１０１３ａと、整流回路１０１３ｂと、平滑回路１０１４ａと、平滑回路１０１４ｂと、を備える。
　また、図２には、絶縁型ＤＣ－ＤＣコンバータ１０１と共に、低電圧電源６０と、ノイズフィルタ７０と、コンデンサ８０と、ゼロオーム抵抗９０と、グラウンドＧＮＤＣのパターン配線ＰＴ１と、グラウンドＧＮＤＨのパターン配線ＰＴ２とが示されている。
　低電圧電源６０は、図１に示されていない、ノイズを除去するためのノイズフィルタ７０とコンデンサ８０とを介して、絶縁型ＤＣ－ＤＣコンバータ１０１へ直流電圧を出力している。 As shown in FIG. 2, the isolated DC-DC converter 101 according to the first embodiment of the present invention includes a control circuit 1011, an insulating transformer 1012, a rectifier circuit 1013a, a rectifier circuit 1013b, a smoothing circuit 1014a, And a smoothing circuit 1014b.
FIG. 2 also shows a low-voltage power supply 60, a noise filter 70, a capacitor 80, a zero-ohm resistor 90, a ground GNDC pattern wiring PT1, and a ground GNDH pattern wiring PT2 together with the isolated DC-DC converter 101. Is shown.
The low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80, which are not shown in FIG.
　制御回路１０１１は、後述する絶縁トランス１０１２の一次側コイルＬ１に流す電流を制御する。 The control circuit 1011 controls the current that flows in the primary coil L1 of the insulation transformer 1012 described later.
　絶縁トランス１０１２は、一次側コイルＬ１と、二次側コイルＬ２ａと、二次側コイルＬ２ｂと、を備える。
　一次側コイルＬ１は、制御回路１０１１による制御に基づく電流を流す。
　絶縁トランス１０１２の二次側コイルＬ２ａは、電磁誘導によって、一次側コイルＬ１と二次側コイルＬ２ａとの巻線数比、及び、一次側コイルＬ１に流れる電流に応じた電流を流す。 The insulation transformer 1012 includes a primary coil L1, a secondary coil L2a, and a secondary coil L2b.
The primary coil L1 flows a current based on control by the control circuit 1011.
The secondary coil L2a of the insulation transformer 1012 causes a current corresponding to the winding ratio between the primary coil L1 and the secondary coil L2a and the current flowing through the primary coil L1 to flow by electromagnetic induction.
　整流回路１０１３ａは、二次側コイルＬ２ａが流す電流を整流する。
　整流回路１０１３ａは、例えば、ダイオードである。 The rectifier circuit 1013a rectifies the current flowing through the secondary coil L2a.
The rectifier circuit 1013a is, for example, a diode.
　平滑回路１０１４ａは、整流回路１０１３ａから流れる電流を用いて充電する。また、平滑回路１０１４ａは、整流回路１０１３ａから流れる電流が無く、絶縁型ＤＣ－ＤＣコンバータ１０１の負荷が電流を必要とする場合に絶縁型ＤＣ－ＤＣコンバータ１０１の負荷に対して放電する。
　平滑回路１０１４ａは、例えば、コンデンサである。 The smoothing circuit 1014a is charged using the current flowing from the rectifier circuit 1013a. The smoothing circuit 1014a discharges the load of the isolated DC-DC converter 101 when there is no current flowing from the rectifier circuit 1013a and the load of the isolated DC-DC converter 101 requires current.
The smoothing circuit 1014a is, for example, a capacitor.
　同様に、絶縁トランス１０１２の二次側コイルＬ２ｂは、一次側コイルＬ１と二次側コイルＬ２ａとの巻線数比、及び、一次側コイルＬ１に流れる電流に応じた電流を流す。 Similarly, the secondary coil L2b of the insulation transformer 1012 passes a current corresponding to the winding number ratio between the primary coil L1 and the secondary coil L2a and the current flowing through the primary coil L1.
　整流回路１０１３ｂは、二次側コイルＬ２ｂが流す電流を整流する。
　整流回路１０１３ｂは、例えば、ダイオードである。 The rectifier circuit 1013b rectifies the current that the secondary coil L2b flows.
The rectifier circuit 1013b is, for example, a diode.
　平滑回路１０１４ｂは、整流回路１０１３ｂから流れる電流を用いて充電する。また、平滑回路１０１４ｂは、整流回路１０１３ｂから流れる電流が無く、絶縁型ＤＣ－ＤＣコンバータ１０１の負荷が電流を必要とする場合に絶縁型ＤＣ－ＤＣコンバータ１０１の負荷に対して放電する。
　平滑回路１０１４ｂは、例えば、コンデンサである。 The smoothing circuit 1014b is charged using the current flowing from the rectifier circuit 1013b. The smoothing circuit 1014b discharges the load of the isolated DC-DC converter 101 when there is no current flowing from the rectifier circuit 1013b and the load of the isolated DC-DC converter 101 requires current.
The smoothing circuit 1014b is, for example, a capacitor.
　回路基板１００が備えるグラウンドＧＮＤＣのパターン配線ＰＴ１は、図２において、二次側コイルＬ２ａの一端、平滑回路１０１４ａの一端、二次側コイルＬ２ｂの一端、平滑回路１０１４ｂの一端、ゼロオーム抵抗９０の一端のそれぞれに接続された領域である。 In FIG. 2, the pattern wiring PT1 of the ground GNDC included in the circuit board 100 is one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary coil L2b, one end of the smoothing circuit 1014b, and one end of the zero ohm resistor 90. It is an area connected to each of the above.
　回路基板１００が備えるグラウンドＧＮＤＨのパターン配線ＰＴ２は、図２において、ゼロオーム抵抗９０の他端に接続された領域である。 The pattern wiring PT2 of the ground GNDH provided in the circuit board 100 is a region connected to the other end of the zero ohm resistor 90 in FIG.
　グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とは、図２に示すように、回路基板１００上の１か所でゼロオーム抵抗９０により接続されている。
　具体的には、グラウンドＧＮＤＣのパターン配線ＰＴ１は、図３に示すように、グラウンドＧＮＤＨのパターン配線ＰＴ２、及び、グラウンドＧＮＤＬのパターン配線ＰＴ３のそれぞれから独立している。グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２のそれぞれは、図４に示すように、ゼロオーム抵抗９０と自身のグラウンドとを接続するための接続領域２００（例えば、パッドやランドなど）を有している。ゼロオーム抵抗９０は、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２のそれぞれの接続領域２００と半田付けされている。このように、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とは、回路基板１００上の１か所でゼロオーム抵抗９０により接続されている。 The pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by a zero ohm resistor 90 at one place on the circuit board 100 as shown in FIG.
Specifically, as shown in FIG. 3, the pattern wiring PT1 of the ground GNDC is independent from the pattern wiring PT2 of the ground GNDH and the pattern wiring PT3 of the ground GNDL. As shown in FIG. 4, each of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH has a connection region 200 (for example, a pad or a land) for connecting the zero ohm resistor 90 and its own ground. is doing. The zero ohm resistor 90 is soldered to each connection region 200 of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH. As described above, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the zero ohm resistor 90 at one place on the circuit board 100.
　このように、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とが回路基板１００上の１か所でゼロオーム抵抗９０により接続される。これにより、圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが、インバータ制御回路１０４を介してインバータ主回路１０５へ伝播する経路を減らす。圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが高電圧電源４０の系統に回り込むことを防ぐ。圧縮機制御回路１１は、高電圧電源４０の系統と低電圧電源６０の系統とによる回路におけるループの形成を防止することができる。その結果、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 In this way, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the zero ohm resistor 90 at one place on the circuit board 100. As a result, the compressor control circuit 11 reduces the path through which noise in the frequency band of the order of megahertz generated by the isolated DC-DC converter 101 propagates to the inverter main circuit 105 via the inverter control circuit 104. The compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system. The compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
　なお、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２との接続は、ゼロオーム抵抗９０により行われるものに限定しない。例えば、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２との接続は、抵抗値の小さいジャンパー線などにより行われてもよい。 The connection between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH is not limited to that performed by the zero ohm resistor 90. For example, the connection between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH may be performed by a jumper line having a small resistance value.
　以上、本発明の第一の実施形態による車両１について説明した。
　本発明の第一の実施形態による車両１において、圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１と、インバータ制御回路１０４と、回路基板１００と、を備える。
　絶縁型ＤＣ－ＤＣコンバータ１０１は、一次側回路（入力側）と二次側回路（出力側）とが絶縁されている。インバータ制御回路１０４は、絶縁型ＤＣ－ＤＣコンバータ１０１から電力が供給される。回路基板１００は、絶縁型ＤＣ－ＤＣコンバータ１０１及びインバータ制御回路１０４を搭載する。回路基板１００は、グラウンドＧＮＤＣのパターン配線ＰＴ１を備える。グラウンドＧＮＤＣは、一次側回路が接続される低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線ＰＴ３、及び、インバータ制御回路１０４が接続される高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２から独立している。グラウンドＧＮＤＣは、回路基板１００上の１か所のみで高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２と接続されている。グラウンドＧＮＤＣは、二次側回路が接続されている。
　具体的には、回路基板１００上の１か所は、ゼロオーム抵抗やジャンパー線などの短絡用素子を用いて接続されている。
　このようにすれば、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 The vehicle 1 according to the first embodiment of the present invention has been described above.
In the vehicle 1 according to the first embodiment of the present invention, the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
In the insulated DC-DC converter 101, the primary side circuit (input side) and the secondary side circuit (output side) are insulated. The inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101. The circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104. The circuit board 100 includes a pattern wiring PT1 of ground GNDC. The ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing. The ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100. The secondary circuit is connected to the ground GNDC.
Specifically, one place on the circuit board 100 is connected using a short-circuit element such as a zero ohm resistor or a jumper wire.
In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
＜第二の実施形態＞
　本発明の第二の実施形態による空気調和システムの構成について説明する。
　本発明の第二の実施形態による車両１は、図１で示した本発明の第一の実施形態による車両１と同様に、走行用モータ２と、空気調和システム３と、を備える。 <Second Embodiment>
The structure of the air conditioning system by 2nd embodiment of this invention is demonstrated.
Similar to the vehicle 1 according to the first embodiment of the present invention shown in FIG. 1, the vehicle 1 according to the second embodiment of the present invention includes a travel motor 2 and an air conditioning system 3.
　走行用モータ２は、車両１を走行させるためのモータである。
　走行用モータ２は、高電圧電源４０から電力を受けて動作する。 The traveling motor 2 is a motor for traveling the vehicle 1.
The traveling motor 2 operates by receiving electric power from the high voltage power supply 40.
　空気調和システム３は、図１で示した本発明の第一の実施形態による空気調和システム３と同様に、インバータ一体型電動圧縮装置１０と、熱交換器系機器２０と、車両空調コントローラ３０と、高電圧電源４０と、車両用絶縁型ＤＣ－ＤＣコンバータ５０と、低電圧電源６０と、を備える。 As with the air conditioning system 3 according to the first embodiment of the present invention shown in FIG. 1, the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, a vehicle air conditioning controller 30, and the like. A high-voltage power supply 40, an automotive isolated DC-DC converter 50, and a low-voltage power supply 60.
　インバータ一体型電動圧縮装置１０は、圧縮機制御回路１１と、圧縮機モータ１０６と、圧縮機１０７と、を備える。 The inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
　圧縮機制御回路１１は、回路基板１００と、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、を備える。 The compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
　回路基板１００は、高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２と、低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線ＰＴ３と、グラウンドＧＮＤＨのパターン配線ＰＴ２及びグラウンドＧＮＤＬのパターン配線ＰＴ３のそれぞれから独立したグラウンドＧＮＤＣのパターン配線ＰＴ１と、を備える。
　グラウンドＧＮＤＣのパターン配線ＰＴ１は、グラウンドＧＮＤＨのパターン配線ＰＴ２と回路基板１００上の１か所でのみ接続されている。
　なお、回路基板１００には、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、が搭載されている。 The circuit board 100 includes a ground GNDH pattern wiring PT2 of the high voltage power supply 40 system, a ground GNDL pattern wiring PT3 of the low voltage power supply 60 system, a ground GNDH pattern wiring PT2, and a ground GNDL pattern wiring PT3. And a pattern wiring PT1 of the ground GNDC independent from each other.
The pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
The circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
　次に、本発明の第二の実施形態におけるグラウンドＧＮＤＣのパターン配線ＰＴ１がグラウンドＧＮＤＨのパターン配線ＰＴ２と回路基板１００上の１か所でのみ接続されていることについて、詳しく説明する。 Next, it will be described in detail that the pattern wiring PT1 of the ground GNDC in the second embodiment of the present invention is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
　本発明の第二の実施形態による絶縁型ＤＣ－ＤＣコンバータ１０１は、図５に示すように、制御回路１０１１と、絶縁トランス１０１２と、整流回路１０１３ａと、整流回路１０１３ｂと、平滑回路１０１４ａと、平滑回路１０１４ｂと、を備える。 As shown in FIG. 5, the isolated DC-DC converter 101 according to the second embodiment of the present invention includes a control circuit 1011, an insulating transformer 1012, a rectifier circuit 1013a, a rectifier circuit 1013b, a smoothing circuit 1014a, And a smoothing circuit 1014b.
　また、図５には、絶縁型ＤＣ－ＤＣコンバータ１０１と共に、低電圧電源６０と、ノイズフィルタ７０と、コンデンサ８０と、インダクタ９１（第１ノイズフィルタ）と、コンデンサ９２と、コンデンサ９３と、グラウンドＧＮＤＣのパターン配線ＰＴ１と、グラウンドＧＮＤＨのパターン配線ＰＴ２とが示されている。
　低電圧電源６０は、ノイズを除去するためのノイズフィルタ７０とコンデンサ８０とを介して、絶縁型ＤＣ－ＤＣコンバータ１０１へ直流電圧を出力している。 Further, FIG. 5 shows a low voltage power supply 60, a noise filter 70, a capacitor 80, an inductor 91 (first noise filter), a capacitor 92, a capacitor 93, a ground, together with the isolated DC-DC converter 101. A pattern wiring PT1 of GNDC and a pattern wiring PT2 of ground GNDH are shown.
The low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80 for removing noise.
　インダクタ９１は、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２との間に設けられている。
　インダクタ９１は、コンデンサ９２及びコンデンサ９３と共にノイズフィルタを構成する。
　インダクタ９１は、例えば、チップフェライトビーズインダクタである。 The inductor 91 is provided between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH.
The inductor 91 forms a noise filter together with the capacitor 92 and the capacitor 93.
The inductor 91 is, for example, a chip ferrite bead inductor.
　コンデンサ９２は、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＬとの間に設けられている。
　コンデンサ９３は、グラウンドＧＮＤＨのパターン配線ＰＴ２とグラウンドＧＮＤＬとの間に設けられている。 The capacitor 92 is provided between the pattern wiring PT1 of the ground GNDC and the ground GNDL.
The capacitor 93 is provided between the pattern wiring PT2 of the ground GNDH and the ground GNDL.
　回路基板１００が備えるグラウンドＧＮＤＣのパターン配線ＰＴ１は、二次側コイルＬ２ａの一端、平滑回路１０１４ａの一端、二次側コイルＬ２ｂの一端、平滑回路１０１４ｂの一端、コンデンサ９２の一端、インダクタ９１の一端のそれぞれに接続された領域である。 The pattern wiring PT1 of the ground GNDC included in the circuit board 100 includes one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary coil L2b, one end of the smoothing circuit 1014b, one end of the capacitor 92, and one end of the inductor 91. It is an area connected to each of the above.
　回路基板１００が備えるグラウンドＧＮＤＨのパターン配線ＰＴ２は、コンデンサ９３の一端、インダクタ９１の他端のそれぞれに接続された領域である。 The ground GNDH pattern wiring PT2 provided in the circuit board 100 is a region connected to one end of the capacitor 93 and the other end of the inductor 91, respectively.
　コンデンサ９２の他端、コンデンサ９３の他端のそれぞれは、グラウンドＧＮＤＬに間接的に、または、直接的に接続されるパターン配線に接続される。 The other end of the capacitor 92 and the other end of the capacitor 93 are connected to a pattern wiring that is indirectly or directly connected to the ground GNDL.
　グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とは、図２で示した回路基板１００上の１か所でゼロオーム抵抗９０により接続されている場合と同様に、図５に示すように、回路基板１００上の１か所でインダクタ９１により接続されている。
　具体的には、グラウンドＧＮＤＣのパターン配線ＰＴ１は、図６に示すように、グラウンドＧＮＤＨのパターン配線ＰＴ２、及び、グラウンドＧＮＤＬのパターン配線ＰＴ３のそれぞれから独立している。また、グラウンドＧＮＤＣのパターン配線ＰＴ１は、金属ネジ等を介してグラウンドＧＮＤＬのパターン配線ＰＴ３に接続されたパターン配線ＰＴ６にコンデンサ９２を介して接続される。また、グラウンドＧＮＤＨのパターン配線ＰＴ２は、金属ネジ等を介してグラウンドＧＮＤＬのパターン配線ＰＴ３に接続されたパターン配線ＰＴ６にコンデンサ９３を介して接続される。グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２のそれぞれは、図７に示すように、インダクタ９１と自身のグラウンドとを接続するための接続領域２００（例えば、パッドやランドなど）を有している。インダクタ９１は、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２のそれぞれの接続領域２００と半田付けされている。このように、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とは、回路基板１００上の１か所でインダクタ９１により接続されている。 As shown in FIG. 5, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the zero ohm resistor 90 at one place on the circuit board 100 shown in FIG. The inductor 91 is connected at one place on the circuit board 100.
Specifically, as shown in FIG. 6, the pattern wiring PT1 of the ground GNDC is independent from the pattern wiring PT2 of the ground GNDH and the pattern wiring PT3 of the ground GNDL. The pattern wiring PT1 of the ground GNDC is connected via a capacitor 92 to the pattern wiring PT6 connected to the pattern wiring PT3 of the ground GNDL through a metal screw or the like. The pattern wiring PT2 of the ground GNDH is connected via a capacitor 93 to the pattern wiring PT6 connected to the pattern wiring PT3 of the ground GNDL via a metal screw or the like. As shown in FIG. 7, each of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH has a connection region 200 (for example, a pad or a land) for connecting the inductor 91 and its own ground. ing. The inductor 91 is soldered to each connection region 200 of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH. As described above, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the inductor 91 at one place on the circuit board 100.
　このように、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とが回路基板１００上の１か所でインダクタ９１により接続される。これにより、圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが、インバータ制御回路１０４を介してインバータ主回路１０５へ伝播する経路を減らす。圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが高電圧電源４０の系統に回り込むことを防ぐ。圧縮機制御回路１１は、高電圧電源４０の系統と低電圧電源６０の系統とによる回路におけるループの形成を防止することができる。その結果、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 In this way, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the inductor 91 at one place on the circuit board 100. As a result, the compressor control circuit 11 reduces the path through which noise in the frequency band of the order of megahertz generated by the isolated DC-DC converter 101 propagates to the inverter main circuit 105 via the inverter control circuit 104. The compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system. The compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
　以上、本発明の第二の実施形態による車両１について説明した。
　本発明の第二の実施形態による車両１において、圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１と、インバータ制御回路１０４と、回路基板１００と、を備える。
　絶縁型ＤＣ－ＤＣコンバータ１０１は、一次側回路（入力側）と二次側回路（出力側）とが絶縁されている。インバータ制御回路１０４は、絶縁型ＤＣ－ＤＣコンバータ１０１から電力が供給される。回路基板１００は、絶縁型ＤＣ－ＤＣコンバータ１０１及びインバータ制御回路１０４を搭載する。回路基板１００は、グラウンドＧＮＤＣのパターン配線ＰＴ１を備える。グラウンドＧＮＤＣが、一次側回路が接続される低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線ＰＴ３、及び、インバータ制御回路１０４が接続される高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２から独立している。グラウンドＧＮＤＣは、回路基板１００上の１か所のみで高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２と接続されている。グラウンドＧＮＤＣは、二次側回路が接続されている。
　具体的には、例えば、回路基板上の１か所は、インダクタ９１などの第１ノイズフィルタを用いて接続されている。
　このようにすれば、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 The vehicle 1 according to the second embodiment of the present invention has been described above.
In the vehicle 1 according to the second embodiment of the present invention, the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
In the insulated DC-DC converter 101, the primary side circuit (input side) and the secondary side circuit (output side) are insulated. The inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101. The circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104. The circuit board 100 includes a pattern wiring PT1 of ground GNDC. The ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing. The ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100. The secondary circuit is connected to the ground GNDC.
Specifically, for example, one place on the circuit board is connected using a first noise filter such as an inductor 91.
In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
＜第三の実施形態＞
　本発明の第三の実施形態による空気調和システムの構成について説明する。
　本発明の第三の実施形態による車両１は、図１で示した本発明の第一の実施形態による車両１と同様に、走行用モータ２と、空気調和システム３と、を備える。 <Third embodiment>
The structure of the air conditioning system by 3rd embodiment of this invention is demonstrated.
Similar to the vehicle 1 according to the first embodiment of the present invention shown in FIG. 1, the vehicle 1 according to the third embodiment of the present invention includes a travel motor 2 and an air conditioning system 3.
　走行用モータ２は、車両１を走行させるためのモータである。
　走行用モータ２は、高電圧電源４０から電力を受けて動作する。 The traveling motor 2 is a motor for traveling the vehicle 1.
The traveling motor 2 operates by receiving electric power from the high voltage power supply 40.
　空気調和システム３は、図１で示した本発明の第一の実施形態による空気調和システム３と同様に、インバータ一体型電動圧縮装置１０と、熱交換器系機器２０と、車両空調コントローラ３０と、高電圧電源４０と、車両用絶縁型ＤＣ－ＤＣコンバータ５０と、低電圧電源６０と、を備える。 As with the air conditioning system 3 according to the first embodiment of the present invention shown in FIG. 1, the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, a vehicle air conditioning controller 30, and the like. A high-voltage power supply 40, an automotive isolated DC-DC converter 50, and a low-voltage power supply 60.
　インバータ一体型電動圧縮装置１０は、圧縮機制御回路１１と、圧縮機モータ１０６と、圧縮機１０７と、を備える。 The inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
　圧縮機制御回路１１は、回路基板１００と、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、を備える。 The compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
　回路基板１００は、高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２と、低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線ＰＴ３と、グラウンドＧＮＤＨのパターン配線ＰＴ２及びグラウンドＧＮＤＬのパターン配線ＰＴ３のそれぞれから独立したグラウンドＧＮＤＣのパターン配線ＰＴ１と、を備える。
　グラウンドＧＮＤＣのパターン配線ＰＴ１は、グラウンドＧＮＤＨのパターン配線ＰＴ２と回路基板１００上の１か所でのみ接続されている。
　なお、回路基板１００には、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、が搭載されている。 The circuit board 100 includes a ground GNDH pattern wiring PT2 of the high voltage power supply 40 system, a ground GNDL pattern wiring PT3 of the low voltage power supply 60 system, a ground GNDH pattern wiring PT2, and a ground GNDL pattern wiring PT3. And a pattern wiring PT1 of the ground GNDC independent from each other.
The pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
The circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
　次に、本発明の第三の実施形態におけるグラウンドＧＮＤＣのパターン配線ＰＴ１がグラウンドＧＮＤＨのパターン配線ＰＴ２と回路基板１００上の１か所でのみ接続されていることについて、詳しく説明する。 Next, it will be described in detail that the pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100 in the third embodiment of the present invention.
　本発明の第三の実施形態による絶縁型ＤＣ－ＤＣコンバータ１０１は、図８に示すように、制御回路１０１１と、絶縁トランス１０１２と、整流回路１０１３ａと、整流回路１０１３ｂと、平滑回路１０１４ａと、平滑回路１０１４ｂと、を備える。 As shown in FIG. 8, the isolated DC-DC converter 101 according to the third embodiment of the present invention includes a control circuit 1011, an insulating transformer 1012, a rectifier circuit 1013a, a rectifier circuit 1013b, a smoothing circuit 1014a, And a smoothing circuit 1014b.
　また、図８には、絶縁型ＤＣ－ＤＣコンバータ１０１と共に、低電圧電源６０と、ノイズフィルタ７０と、コンデンサ８０と、インダクタ９１と、コンデンサ９２と、コンデンサ９３と、インダクタ９４ａ（第２ノイズフィルタのうちの１つ）と、インダクタ９４ｂ（第２ノイズフィルタのうちの１つ）と、コンデンサ９５ａと、コンデンサ９５ｂと、コンデンサ９６ａと、コンデンサ９６ｂと、グラウンドＧＮＤＣのパターン配線ＰＴ１と、グラウンドＧＮＤＨのパターン配線ＰＴ２とが示されている。
　低電圧電源６０は、ノイズを除去するためのノイズフィルタ７０とコンデンサ８０とを介して、絶縁型ＤＣ－ＤＣコンバータ１０１へ直流電圧を出力している。 FIG. 8 shows a low voltage power supply 60, a noise filter 70, a capacitor 80, an inductor 91, a capacitor 92, a capacitor 93, and an inductor 94a (second noise filter) together with the isolated DC-DC converter 101. ), An inductor 94b (one of the second noise filters), a capacitor 95a, a capacitor 95b, a capacitor 96a, a capacitor 96b, a ground GNDC pattern wiring PT1, and a ground GNDH A pattern wiring PT2 is shown.
The low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80 for removing noise.
　インダクタ９４ａは、インダクタ９１と同様のインダクタである。
　インダクタ９４ａは、コンデンサ９５ａ及びコンデンサ９６ａと共にノイズフィルタを構成する。
　インダクタ９４ａは、絶縁型ＤＣ－ＤＣコンバータ１０１からグラウンドＧＮＤＨに接続されるインバータ制御回路１０４などの負荷へ電力を供給する経路において、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａとの間に設けられている。
　インダクタ９４ａは、インダクタ９１と共にコモンモード電流による磁束は足し合わされてインダクタに働き、ディファレンシャル電流による磁束は打ち消されてインダクタに働くノイズを除去するコモンモードフィルタを構成する。 The inductor 94a is an inductor similar to the inductor 91.
The inductor 94a forms a noise filter together with the capacitor 95a and the capacitor 96a.
The inductor 94a is connected to the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern on the load side in a path for supplying power from the insulated DC-DC converter 101 to a load such as the inverter control circuit 104 connected to the ground GNDH. It is provided between the wiring PT5a.
The inductor 94a constitutes a common mode filter that, together with the inductor 91, adds the magnetic flux due to the common mode current and acts on the inductor, and cancels the magnetic flux caused by the differential current and removes the noise acting on the inductor.
　コンデンサ９５ａは、グラウンドＧＮＤＬと絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａとの間に設けられている。 The capacitor 95a is provided between the ground GNDL and the pattern wiring PT4a on the insulated DC-DC converter 101 side.
　コンデンサ９６ａは、グラウンドＧＮＤＬと負荷側のパターン配線ＰＴ５ａとの間に設けられている。 The capacitor 96a is provided between the ground GNDL and the pattern wiring PT5a on the load side.
　同様に、インダクタ９４ｂは、インダクタ９１と同様のインダクタである。
　インダクタ９４ｂは、コンデンサ９５ｂ及びコンデンサ９６ｂと共にノイズフィルタを構成する。
　インダクタ９４ｂは、絶縁型ＤＣ－ＤＣコンバータ１０１からグラウンドＧＮＤＨに接続されるインバータ制御回路１０４などの負荷へ電力を供給する経路において、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ｂと負荷側のパターン配線ＰＴ５ｂとの間に設けられている。
　インダクタ９４ｂは、インダクタ９１と共にコモンモードフィルタを構成する。 Similarly, the inductor 94b is an inductor similar to the inductor 91.
The inductor 94b forms a noise filter together with the capacitor 95b and the capacitor 96b.
The inductor 94b is connected to the pattern wiring PT4b on the insulated DC-DC converter 101 side and the pattern on the load side in a path for supplying power from the insulated DC-DC converter 101 to a load such as the inverter control circuit 104 connected to the ground GNDH. It is provided between the wiring PT5b.
The inductor 94b forms a common mode filter together with the inductor 91.
　コンデンサ９５ｂは、グラウンドＧＮＤＬと絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ｂとの間に設けられている。 The capacitor 95b is provided between the ground GNDL and the pattern wiring PT4b on the insulated DC-DC converter 101 side.
　コンデンサ９６ｂは、グラウンドＧＮＤＬと負荷側のパターン配線ＰＴ５ｂとの間に設けられている。 The capacitor 96b is provided between the ground GNDL and the pattern wiring PT5b on the load side.
　回路基板１００が備えるグラウンドＧＮＤＣのパターン配線ＰＴ１は、二次側コイルＬ２ａの一端、平滑回路１０１４ａの一端、二次側コイルＬ２ｂの一端、平滑回路１０１４ｂの一端、コンデンサ９２の両端、インダクタ９１の一端のそれぞれに接続された領域である。 The pattern wiring PT1 of the ground GNDC included in the circuit board 100 includes one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary side coil L2b, one end of the smoothing circuit 1014b, both ends of the capacitor 92, and one end of the inductor 91. It is an area connected to each of the above.
　回路基板１００が備えるグラウンドＧＮＤＨのパターン配線ＰＴ２は、コンデンサ９３の両端、インダクタ９１の他端、コンデンサ９６ａの一端、コンデンサ９６ｂの一端のそれぞれに接続された領域である。 The pattern wiring PT2 of the ground GNDH included in the circuit board 100 is a region connected to both ends of the capacitor 93, the other end of the inductor 91, one end of the capacitor 96a, and one end of the capacitor 96b.
　回路基板１００が備える絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａは、整流回路１０１３ａの一端、平滑回路１０１４ａの他端、コンデンサ９５ａの一端、インダクタ９４ａの一端のそれぞれに接続された領域である。 The pattern wiring PT4a on the insulated DC-DC converter 101 side included in the circuit board 100 is a region connected to one end of the rectifier circuit 1013a, the other end of the smoothing circuit 1014a, one end of the capacitor 95a, and one end of the inductor 94a. .
　回路基板１００が備える負荷側のパターン配線ＰＴ５ａは、インダクタ９４ａの他端、コンデンサ９６ａの一端のそれぞれに接続された領域である。 The load-side pattern wiring PT5a included in the circuit board 100 is a region connected to the other end of the inductor 94a and one end of the capacitor 96a.
　回路基板１００が備える絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ｂは、整流回路１０１３ｂの一端、平滑回路１０１４ｂの他端、コンデンサ９５ｂの一端、インダクタ９４ｂの一端のそれぞれに接続された領域である。 The pattern wiring PT4b on the insulating DC-DC converter 101 side included in the circuit board 100 is a region connected to one end of the rectifier circuit 1013b, the other end of the smoothing circuit 1014b, one end of the capacitor 95b, and one end of the inductor 94b. .
　回路基板１００が備える負荷側のパターン配線ＰＴ５ｂは、インダクタ９４ｂの他端、コンデンサ９６ｂの一端のそれぞれに接続された領域である。 The load-side pattern wiring PT5b provided in the circuit board 100 is a region connected to the other end of the inductor 94b and one end of the capacitor 96b.
　コンデンサ９５ａの他端、コンデンサ９５ｂの他端、コンデンサ９６ａの他端、コンデンサ９６ｂの他端のそれぞれは、グラウンドＧＮＤＬに間接的に、または、直接的に接続されるパターン配線に接続される。 The other end of the capacitor 95a, the other end of the capacitor 95b, the other end of the capacitor 96a, and the other end of the capacitor 96b are connected to a pattern wiring that is indirectly or directly connected to the ground GNDL.
　グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とは、図８に示すように、図５で示した本発明の第二の実施形態における接続と同様に、回路基板１００上の１か所でインダクタ９４ａにより接続されている。 As shown in FIG. 8, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are arranged at one place on the circuit board 100 as in the connection in the second embodiment of the present invention shown in FIG. And connected by an inductor 94a.
　絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａとは、図８に示すように、回路基板１００上の１か所でインダクタ９１により接続されている。
　具体的には、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａのそれぞれは、図９に示すように、インダクタ９４ａと自身のパターン配線とを接続するための接続領域２００（例えば、パッドやランドなど）を有している。インダクタ９４ａは、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａのそれぞれの接続領域２００と半田付けされている。このように、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａとは、回路基板１００上の１か所でインダクタ９４ａにより接続されている。 The pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected by an inductor 91 at one place on the circuit board 100 as shown in FIG.
Specifically, each of the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side has a connection region for connecting the inductor 94a and its own pattern wiring as shown in FIG. 200 (for example, a pad or a land). The inductor 94a is soldered to each connection region 200 of the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side. As described above, the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected at one place on the circuit board 100 by the inductor 94a.
　同様に、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ｂと負荷側のパターン配線ＰＴ５ｂとは、回路基板１００上の１か所でインダクタ９４ｂにより接続されている。 Similarly, the pattern wiring PT4b on the insulated DC-DC converter 101 side and the pattern wiring PT5b on the load side are connected at one place on the circuit board 100 by an inductor 94b.
　このように、圧縮機制御回路１１は、グラウンド側と負荷への電力供給側のそれぞれにノイズフィルタを設けてコモンモードフィルタを構成している。これにより、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが、インバータ制御回路１０４を介してインバータ主回路１０５へ伝播する経路を減らす。圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが高電圧電源４０の系統に回り込むことを防ぐ。圧縮機制御回路１１は、高電圧電源４０の系統と低電圧電源６０の系統とによる回路におけるループの形成を防止することができる。その結果、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 Thus, the compressor control circuit 11 is provided with a noise filter on each of the ground side and the power supply side to the load to constitute a common mode filter. As a result, the path through which the noise in the frequency band of the order of megahertz generated in the isolated DC-DC converter 101 propagates to the inverter main circuit 105 via the inverter control circuit 104 is reduced. The compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system. The compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
　以上、本発明の第三の実施形態による車両１について説明した。
　本発明の第三の実施形態による車両１において、圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１と、インバータ制御回路１０４と、回路基板１００と、を備える。
　絶縁型ＤＣ－ＤＣコンバータ１０１は、一次側回路（入力側）と二次側回路（出力側）とが絶縁されている。インバータ制御回路１０４は、絶縁型ＤＣ－ＤＣコンバータ１０１から電力が供給される。回路基板１００は、絶縁型ＤＣ－ＤＣコンバータ１０１及びインバータ制御回路１０４を搭載する。回路基板１００は、グラウンドＧＮＤＣのパターン配線ＰＴ１を備える。グラウンドＧＮＤＣは、一次側回路が接続される低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線ＰＴ３、及び、インバータ制御回路１０４が接続される高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２から独立している。グラウンドＧＮＤＣは、回路基板１００上の１か所のみで高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２と接続されている。グラウンドＧＮＤＣは、二次側回路が接続されている。
　具体的には、例えば、回路基板上の１か所は、インダクタ９１などの第１ノイズフィルタを用いて接続されている。また、回路基板上の１か所は、さらに、絶縁型ＤＣ－ＤＣコンバータ１０１からインバータ制御回路１０４へ電力を供給する経路において絶縁型ＤＣ－ＤＣコンバータ１０１とインバータ制御回路１０４との間に第１ノイズフィルタと同様の第２ノイズフィルタが設けられている。
　このようにすれば、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 The vehicle 1 according to the third embodiment of the present invention has been described above.
In the vehicle 1 according to the third embodiment of the present invention, the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
In the insulated DC-DC converter 101, the primary side circuit (input side) and the secondary side circuit (output side) are insulated. The inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101. The circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104. The circuit board 100 includes a pattern wiring PT1 of ground GNDC. The ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing. The ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100. The secondary circuit is connected to the ground GNDC.
Specifically, for example, one place on the circuit board is connected using a first noise filter such as an inductor 91. In addition, one place on the circuit board is further provided between the insulation type DC-DC converter 101 and the inverter control circuit 104 in a path for supplying power from the insulation type DC-DC converter 101 to the inverter control circuit 104. A second noise filter similar to the noise filter is provided.
In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
＜第四の実施形態＞
　本発明の第四の実施形態による空気調和システムの構成について説明する。
　本発明の第四の実施形態による車両１は、図１で示した本発明の第一の実施形態による車両１と同様に、走行用モータ２と、空気調和システム３と、を備える。 <Fourth embodiment>
The structure of the air conditioning system by 4th embodiment of this invention is demonstrated.
Similar to the vehicle 1 according to the first embodiment of the present invention shown in FIG. 1, the vehicle 1 according to the fourth embodiment of the present invention includes a travel motor 2 and an air conditioning system 3.
　走行用モータ２は、車両１を走行させるためのモータである。
　走行用モータ２は、高電圧電源４０から電力を受けて動作する。 The traveling motor 2 is a motor for traveling the vehicle 1.
The traveling motor 2 operates by receiving electric power from the high voltage power supply 40.
　空気調和システム３は、図１で示した本発明の第一の実施形態による空気調和システム３と同様に、インバータ一体型電動圧縮装置１０と、熱交換器系機器２０と、車両空調コントローラ３０と、高電圧電源４０と、車両用絶縁型ＤＣ－ＤＣコンバータ５０と、低電圧電源６０と、を備える。 As with the air conditioning system 3 according to the first embodiment of the present invention shown in FIG. 1, the air conditioning system 3 includes an inverter-integrated electric compressor 10, a heat exchanger system device 20, a vehicle air conditioning controller 30, and the like. A high-voltage power supply 40, an automotive isolated DC-DC converter 50, and a low-voltage power supply 60.
　インバータ一体型電動圧縮装置１０は、圧縮機制御回路１１と、圧縮機モータ１０６と、圧縮機１０７と、を備える。 The inverter-integrated electric compressor 10 includes a compressor control circuit 11, a compressor motor 106, and a compressor 107.
　圧縮機制御回路１１は、回路基板１００と、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、を備える。 The compressor control circuit 11 includes a circuit board 100, an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
　回路基板１００は、高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２と、低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線ＰＴ３と、グラウンドＧＮＤＨのパターン配線ＰＴ２及びグラウンドＧＮＤＬのパターン配線ＰＴ３のそれぞれから独立したグラウンドＧＮＤＣのパターン配線ＰＴ１と、を備える。
　グラウンドＧＮＤＣのパターン配線ＰＴ１は、グラウンドＧＮＤＨのパターン配線ＰＴ２と回路基板１００上の１か所でのみ接続されている。
　なお、回路基板１００には、絶縁型ＤＣ－ＤＣコンバータ１０１と、通信回路１０２と、絶縁素子１０３と、インバータ制御回路１０４と、インバータ主回路１０５と、が搭載されている。 The circuit board 100 includes a ground GNDH pattern wiring PT2 of the high voltage power supply 40 system, a ground GNDL pattern wiring PT3 of the low voltage power supply 60 system, a ground GNDH pattern wiring PT2, and a ground GNDL pattern wiring PT3. And a pattern wiring PT1 of the ground GNDC independent from each other.
The pattern wiring PT1 of the ground GNDC is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
The circuit board 100 includes an insulation type DC-DC converter 101, a communication circuit 102, an insulation element 103, an inverter control circuit 104, and an inverter main circuit 105.
　次に、本発明の第四の実施形態におけるグラウンドＧＮＤＣのパターン配線ＰＴ１がグラウンドＧＮＤＨのパターン配線ＰＴ２と回路基板１００上の１か所でのみ接続されていることについて、詳しく説明する。 Next, it will be described in detail that the pattern wiring PT1 of the ground GNDC in the fourth embodiment of the present invention is connected to the pattern wiring PT2 of the ground GNDH only at one place on the circuit board 100.
　本発明の第四の実施形態による絶縁型ＤＣ－ＤＣコンバータ１０１は、図１０に示すように、制御回路１０１１と、絶縁トランス１０１２と、整流回路１０１３ａと、平滑回路１０１４ａと、を備える。 As shown in FIG. 10, the insulation type DC-DC converter 101 according to the fourth embodiment of the present invention includes a control circuit 1011, an insulation transformer 1012, a rectifier circuit 1013 a, and a smoothing circuit 1014 a.
　また、図１０には、絶縁型ＤＣ－ＤＣコンバータ１０１と共に、低電圧電源６０と、ノイズフィルタ７０と、コンデンサ８０と、コモンモードフィルタ９７と、コンデンサ９８ａと、コンデンサ９８ｂと、コンデンサ９９ｂと、コンデンサ９９ｂと、グラウンドＧＮＤＣのパターン配線ＰＴ１と、グラウンドＧＮＤＨのパターン配線ＰＴ２と、が示されている。
　低電圧電源６０は、ノイズを除去するためのノイズフィルタ７０とコンデンサ８０とを介して、絶縁型ＤＣ－ＤＣコンバータ１０１へ直流電圧を出力している。 FIG. 10 shows the low-voltage power supply 60, the noise filter 70, the capacitor 80, the common mode filter 97, the capacitor 98a, the capacitor 98b, the capacitor 99b, the capacitor, together with the isolated DC-DC converter 101. 99b, a pattern wiring PT1 of the ground GNDC, and a pattern wiring PT2 of the ground GNDH are shown.
The low voltage power supply 60 outputs a DC voltage to the isolated DC-DC converter 101 via a noise filter 70 and a capacitor 80 for removing noise.
　コモンモードフィルタ９７は、第１チョークコイルＬ１１と第２チョークコイルＬ１２とを備える。コモンモードフィルタ９７は、コモンモード電流による磁束は足し合わされてインダクタに働き、ディファレンシャル電流による磁束は打ち消されてインダクタに働くノイズを除去するノイズを除去する。 The common mode filter 97 includes a first choke coil L11 and a second choke coil L12. The common mode filter 97 adds the magnetic flux due to the common mode current to act on the inductor, and cancels the magnetic flux due to the differential current to remove the noise acting on the inductor.
　第１チョークコイルＬ１１は、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２との間に設けられている。 The first choke coil L11 is provided between the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH.
　第２チョークコイルＬ１２は、絶縁型ＤＣ－ＤＣコンバータ１０１からグラウンドＧＮＤＨに接続されるインバータ制御回路１０４などの負荷へ電力を供給する経路において、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａとの間に設けられている。 The second choke coil L12 is connected to the pattern wiring PT4a on the insulated DC-DC converter 101 side and the load in a path for supplying power from the insulated DC-DC converter 101 to a load such as the inverter control circuit 104 connected to the ground GNDH. It is provided between the pattern wiring PT5a on the side.
　コンデンサ９８ａは、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＬとの間に設けられている。
　コンデンサ９９ａは、グラウンドＧＮＤＨのパターン配線ＰＴ２とグラウンドＧＮＤＬとの間に設けられている。 The capacitor 98a is provided between the pattern wiring PT1 of the ground GNDC and the ground GNDL.
The capacitor 99a is provided between the pattern wiring PT2 of the ground GNDH and the ground GNDL.
　コンデンサ９８ｂは、グラウンドＧＮＤＬと絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａとの間に設けられている。 The capacitor 98b is provided between the ground GNDL and the pattern wiring PT4a on the insulated DC-DC converter 101 side.
　コンデンサ９９ｂは、グラウンドＧＮＤＬと負荷側のパターン配線ＰＴ５ａとの間に設けられている。 The capacitor 99b is provided between the ground GNDL and the pattern wiring PT5a on the load side.
　回路基板１００が備えるグラウンドＧＮＤＣのパターン配線ＰＴ１は、二次側コイルＬ２ａの一端、平滑回路１０１４ａの一端、二次側コイルＬ２ｂの一端、コンデンサ９８ａの一端、第１チョークコイルＬ１１の一端のそれぞれに接続された領域である。 The pattern wiring PT1 of the ground GNDC included in the circuit board 100 is respectively connected to one end of the secondary coil L2a, one end of the smoothing circuit 1014a, one end of the secondary coil L2b, one end of the capacitor 98a, and one end of the first choke coil L11. It is a connected area.
　回路基板１００が備えるグラウンドＧＮＤＨのパターン配線ＰＴ２は、第１チョークコイルＬ１１の他端、コンデンサ９９ａの一端のそれぞれに接続された領域である。 The pattern wiring PT2 of the ground GNDH provided in the circuit board 100 is a region connected to the other end of the first choke coil L11 and one end of the capacitor 99a.
　回路基板１００が備える絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａは、整流回路１０１３ａの一端、平滑回路１０１４ａの他端、コンデンサ９８ｂの一端、第２チョークコイルＬ１２の一端のそれぞれに接続された領域である。 The pattern wiring PT4a on the insulated DC-DC converter 101 side included in the circuit board 100 is connected to one end of the rectifier circuit 1013a, the other end of the smoothing circuit 1014a, one end of the capacitor 98b, and one end of the second choke coil L12. It is an area.
　回路基板１００が備える負荷側のパターン配線ＰＴ５ａは、第２チョークコイルＬ１２の他端端、コンデンサ９９ｂの一端のそれぞれに接続された領域である。 The pattern wiring PT5a on the load side provided in the circuit board 100 is a region connected to the other end of the second choke coil L12 and one end of the capacitor 99b.
　コンデンサ９８ａの他端、コンデンサ９８ｂの他端、コンデンサ９９ａの他端、コンデンサ９９ｂの他端のそれぞれは、グラウンドＧＮＤＬに間接的に、または、直接的に接続されるパターン配線に接続される。 Each of the other end of the capacitor 98a, the other end of the capacitor 98b, the other end of the capacitor 99a, and the other end of the capacitor 99b is connected to a pattern wiring that is indirectly or directly connected to the ground GNDL.
　なお、コンデンサ９８ａ、９８ｂ、９９ａ、９９ｂの静電容量値によって、コモンモードフィルタのカットオフ周波数が決定される。 Note that the cut-off frequency of the common mode filter is determined by the capacitance values of the capacitors 98a, 98b, 99a, and 99b.
　グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とは、図１０に示すように、回路基板１００上の１か所でコモンモードフィルタ９７により接続されている。
　また、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａとは、図１０に示すように、回路基板１００上の１か所でコモンモードフィルタ９７により接続されている。
　具体的には、グラウンドＧＮＤＣのパターン配線ＰＴ１、グラウンドＧＮＤＨのパターン配線ＰＴ２、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａ、負荷側のパターン配線ＰＴ５ａのそれぞれは、図１１に示すように、コモンモードフィルタ９７と自身のパターン配線とを接続するための接続領域２００（例えば、パッドやランドなど）を有している。コモンモードフィルタ９７は、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２のそれぞれの接続領域２００と半田付けされている。このように、グラウンドＧＮＤＣのパターン配線ＰＴ１とグラウンドＧＮＤＨのパターン配線ＰＴ２とは、回路基板１００上の１か所でコモンモードフィルタ９７により接続されている。
　また、コモンモードフィルタ９７は、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａのそれぞれの接続領域２００と半田付けされている。このように、絶縁型ＤＣ－ＤＣコンバータ１０１側のパターン配線ＰＴ４ａと負荷側のパターン配線ＰＴ５ａとは、回路基板１００上の１か所でコモンモードフィルタ９７により接続されている。 The pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by a common mode filter 97 at one place on the circuit board 100 as shown in FIG.
Further, the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected by a common mode filter 97 at one place on the circuit board 100 as shown in FIG.
Specifically, each of the ground GNDC pattern wiring PT1, the ground GNDH pattern wiring PT2, the insulating DC-DC converter 101 side pattern wiring PT4a, and the load side pattern wiring PT5a, as shown in FIG. A connection region 200 (for example, a pad or a land) for connecting the mode filter 97 and its own pattern wiring is provided. The common mode filter 97 is soldered to each connection region 200 of the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH. In this way, the pattern wiring PT1 of the ground GNDC and the pattern wiring PT2 of the ground GNDH are connected by the common mode filter 97 at one place on the circuit board 100.
The common mode filter 97 is soldered to each connection region 200 of the pattern wiring PT4a on the insulated DC-DC converter 101 side and the pattern wiring PT5a on the load side. As described above, the pattern wiring PT4a on the insulating DC-DC converter 101 side and the pattern wiring PT5a on the load side are connected by the common mode filter 97 at one place on the circuit board 100.
　このように、圧縮機制御回路１１は、グラウンド側と負荷への電力供給側にコモンモードフィルタを設けることにより、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが、インバータ制御回路１０４を介してインバータ主回路１０５へ伝播する経路を減らす。圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１で発生したメガヘルツのオーダの周波数帯のノイズが高電圧電源４０の系統に回り込むことを防ぐ。圧縮機制御回路１１は、高電圧電源４０の系統と低電圧電源６０の系統とによる回路におけるループの形成を防止することができる。その結果、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 As described above, the compressor control circuit 11 is provided with the common mode filter on the ground side and the power supply side to the load, so that the noise in the frequency band of the order of megahertz generated in the isolated DC-DC converter 101 can be reduced. The number of paths that propagate to the inverter main circuit 105 via the control circuit 104 is reduced. The compressor control circuit 11 prevents noise in the megahertz order frequency band generated by the isolated DC-DC converter 101 from entering the high voltage power supply 40 system. The compressor control circuit 11 can prevent the formation of a loop in the circuit of the high voltage power supply 40 system and the low voltage power supply 60 system. As a result, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
　以上、本発明の第四の実施形態による車両１について説明した。
　本発明の第四の実施形態による車両１において、圧縮機制御回路１１は、絶縁型ＤＣ－ＤＣコンバータ１０１と、インバータ制御回路１０４と、回路基板１００と、を備える。
　絶縁型ＤＣ－ＤＣコンバータ１０１は、一次側回路（入力側）と二次側回路（出力側）とが絶縁されている。インバータ制御回路１０４は、絶縁型ＤＣ－ＤＣコンバータ１０１から電力が供給される。回路基板１００は、絶縁型ＤＣ－ＤＣコンバータ１０１及びインバータ制御回路１０４を搭載する。回路基板１００は、グラウンドＧＮＤＣのパターン配線ＰＴ１を備える。グラウンドＧＮＤＣは、一次側回路が接続される低電圧電源６０の系統のグラウンドＧＮＤＬのパターン配線ＰＴ３、及び、インバータ制御回路１０４が接続される高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２から独立している。グラウンドＧＮＤＣは、回路基板１００上の１か所のみで高電圧電源４０の系統のグラウンドＧＮＤＨのパターン配線ＰＴ２と接続されている。グラウンドＧＮＤＣはｍ二次側回路が接続されている。
　具体的には、例えば、回路基板１００上の１か所は、コモンモードフィルタ９７が含む第１チョークコイルＬ１１を用いて接続され、かつ、絶縁型ＤＣ－ＤＣコンバータ１０１からインバータ制御回路１０４へ電力を供給する経路において絶縁型ＤＣ－ＤＣコンバータ１０１とインバータ制御回路１０４との間に第２チョークコイルＬ１２が設けられている。
　このようにすれば、圧縮機制御回路１１は、車両１において、簡易な構成で電磁ノイズの放出を防止することができる。 The vehicle 1 according to the fourth embodiment of the present invention has been described above.
In the vehicle 1 according to the fourth embodiment of the present invention, the compressor control circuit 11 includes an insulated DC-DC converter 101, an inverter control circuit 104, and a circuit board 100.
In the insulated DC-DC converter 101, the primary side circuit (input side) and the secondary side circuit (output side) are insulated. The inverter control circuit 104 is supplied with power from the isolated DC-DC converter 101. The circuit board 100 is mounted with an insulated DC-DC converter 101 and an inverter control circuit 104. The circuit board 100 includes a pattern wiring PT1 of ground GNDC. The ground GNDC is independent of the pattern wiring PT3 of the ground GNDL of the system of the low voltage power supply 60 to which the primary side circuit is connected and the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 to which the inverter control circuit 104 is connected. is doing. The ground GNDC is connected to the pattern wiring PT2 of the ground GNDH of the system of the high voltage power supply 40 only at one place on the circuit board 100. An m secondary side circuit is connected to the ground GNDC.
Specifically, for example, one place on the circuit board 100 is connected using the first choke coil L11 included in the common mode filter 97, and power is supplied from the isolated DC-DC converter 101 to the inverter control circuit 104. The second choke coil L12 is provided between the insulated DC-DC converter 101 and the inverter control circuit 104 in the path for supplying the current.
In this way, the compressor control circuit 11 can prevent the emission of electromagnetic noise in the vehicle 1 with a simple configuration.
　なお、本発明の実施形態においてコンデンサ９２、９３、９５ａ、９５ｂ、９６ａ、９６ｂ、９８ａ、９８ｂ、９９ａ、９９ｂのそれぞれは、個別部品のコンデンサとして説明したが個別部品のコンデンサに限定するものではない。例えば、コンデンサ９２、９３、９５ａ、９５ｂ、９６ａ、９６ｂ、９８ａ、９８ｂ、９９ａ、９９ｂのそれぞれは、配線などに起因する寄生素子のコンデンサであってもよい。 In the embodiment of the present invention, each of the capacitors 92, 93, 95 a, 95 b, 96 a, 96 b, 98 a, 98 b, 99 a, 99 b has been described as an individual component capacitor, but is not limited to an individual component capacitor. . For example, each of the capacitors 92, 93, 95a, 95b, 96a, 96b, 98a, 98b, 99a, 99b may be a parasitic element capacitor caused by wiring or the like.
　なお、本発明の実施形態による空気調和システム３は、自動車、電車、船舶などの車両１に備えられてもよい。 Note that the air conditioning system 3 according to the embodiment of the present invention may be provided in a vehicle 1 such as an automobile, a train, or a ship.
　なお、本発明の実施形態における処理は、適切な処理が行われる範囲において、処理の順番が入れ替わってもよい。 Note that, in the processing according to the embodiment of the present invention, the order of processing may be changed within a range where appropriate processing is performed.
　本発明における記憶部のそれぞれは、適切な情報の送受信が行われる範囲においてどこに備えられていてもよい。また、記憶部のそれぞれは、適切な情報の送受信が行われる範囲において複数存在しデータを分散して記憶していてもよい。 Each of the storage units in the present invention may be provided anywhere as long as appropriate information is transmitted and received. Each of the storage units may exist in a range in which appropriate information is transmitted and received, and data may be distributed and stored.
　本発明の実施形態について説明したが、上述の車両１における装置のそれぞれは内部に、コンピュータシステムを有していてもよい。そして、上述した処理の過程は、プログラムの形式でコンピュータ読み取り可能な記録媒体に記憶されており、このプログラムをコンピュータが読み出して実行することによって、上記処理が行われる。ここでコンピュータ読み取り可能な記録媒体とは、磁気ディスク、光磁気ディスク、ＣＤ－ＲＯＭ、ＤＶＤ－ＲＯＭ、半導体メモリ等をいう。また、このコンピュータプログラムを通信回線によってコンピュータに配信し、この配信を受けたコンピュータがそのプログラムを実行するようにしてもよい。 Although the embodiment of the present invention has been described, each of the devices in the vehicle 1 described above may have a computer system therein. The process described above is stored in a computer-readable recording medium in the form of a program, and the above process is performed by the computer reading and executing this program. Here, the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.
　また、上記プログラムは、前述した機能の一部を実現してもよい。さらに、上記プログラムは、前述した機能をコンピュータシステムにすでに記録されているプログラムとの組み合わせで実現できるファイル、いわゆる差分ファイル（差分プログラム）であってもよい。 Also, the above program may realize part of the functions described above. Further, the program may be a so-called difference file (difference program) that can realize the above-described functions in combination with a program already recorded in the computer system.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例であり、発明の範囲を限定しない。これらの実施形態は、発明の要旨を逸脱しない範囲で、種々の追加、省略、置き換え、変更を行ってよい。 Although several embodiments of the present invention have been described, these embodiments are examples and do not limit the scope of the invention. These embodiments may be variously added, omitted, replaced, and changed without departing from the gist of the invention.
　圧縮機制御回路及び圧縮装置によれば、車両において、簡易な構成で電磁ノイズの放出を防止することができる。 According to the compressor control circuit and the compression device, the emission of electromagnetic noise can be prevented in a vehicle with a simple configuration.
３     空気調和システム
１０      インバータ一体型電動圧縮装置
１１ 圧縮機制御回路
２０ 熱交換器系機器
３０ 車両空調コントローラ
４０  高電圧電源
５０     車両用絶縁型ＤＣ－ＤＣコンバータ
６０    低電圧電源
７０     ノイズフィルタ
８０、９２、９３、９５ａ、９５ｂ、９６ａ、９６ｂ、９８ａ、９８ｂ、９９ａ、９９ｂ  コンデンサ
９０     ゼロオーム抵抗
９１、９４ａ、９４ｂ      インダクタ
９７     コモンモードフィルタ
１００・・回路基板
１０１ 絶縁型ＤＣ－ＤＣコンバータ
１０２ 通信回路
１０３     絶縁素子
１０４     インバータ制御回路
１０５  インバータ主回路
１０６    圧縮機モータ
１０７ 圧縮機
２００       接続領域
１０１１   制御回路
１０１２   絶縁トランス
１０１３ａ、１０１３ｂ      整流回路
１０１４ａ、１０１４ｂ   平滑回路 3 Air Conditioning System 10 Inverter-integrated Electric Compressor 11 Compressor Control Circuit 20 Heat Exchanger System 30 Vehicle Air Conditioning Controller 40 High Voltage Power Supply 50 Insulated DC-DC Converter 60 for Vehicle Low Voltage Power Supply 70 Noise Filters 80, 92, 93, 95a, 95b, 96a, 96b, 98a, 98b, 99a, 99b Capacitor 90 Zero ohm resistor 91, 94a, 94b Inductor 97 Common mode filter 100... Circuit board 101 Insulation type DC-DC converter 102 Communication circuit 103 Insulation element 104 Inverter control circuit 105 Inverter main circuit 106 Compressor motor 107 Compressor 200 Connection area 1011 Control circuit 1012 Insulation transformer 1013a, 1013b Rectifier circuit 1014a, 1014 Smoothing circuit

Claims (9)

  1. 　一次側回路と二次側回路とが絶縁されている絶縁型ＤＣ－ＤＣコンバータと、
    　前記絶縁型ＤＣ－ＤＣコンバータから電力が供給されるインバータ制御回路と、
    　を備え、
    　前記インバータ制御回路が接続される高電圧電源の系統のグラウンドのパターン配線と、前記一次側回路が接続される低電圧電源の系統のグラウンドのパターン配線、及び、前記インバータ制御回路が接続される高電圧電源の系統のグラウンドのパターン配線から独立し、前記二次側回路が接続されるグラウンドのパターン配線とが、１か所のみで接続される圧縮機制御回路。     An isolated DC-DC converter in which the primary circuit and the secondary circuit are insulated;
    An inverter control circuit to which power is supplied from the isolated DC-DC converter;
    With
    The ground pattern wiring of the high voltage power supply system to which the inverter control circuit is connected, the ground pattern wiring of the low voltage power supply system to which the primary circuit is connected, and the high to which the inverter control circuit is connected A compressor control circuit, which is independent from a ground pattern wiring of a voltage power supply system and is connected to a ground pattern wiring to which the secondary circuit is connected only at one place.
  2. 　前記１か所は、短絡用素子を用いて接続されている、
    　請求項１に記載の圧縮機制御回路。     The one place is connected using a short-circuit element,
    The compressor control circuit according to claim 1.
  3. 　前記１か所は、第１ノイズフィルタを用いて接続されている、
    　請求項１に記載の圧縮機制御回路。     The one place is connected using a first noise filter,
    The compressor control circuit according to claim 1.
  4. 　前記１か所は、さらに、前記絶縁型ＤＣ－ＤＣコンバータから前記インバータ制御回路へ電力を供給する経路において前記絶縁型ＤＣ－ＤＣコンバータと前記インバータ制御回路との間に第２ノイズフィルタが設けられている、
    　請求項３に記載の圧縮機制御回路。     In the one place, a second noise filter is further provided between the isolated DC-DC converter and the inverter control circuit in a path for supplying power from the isolated DC-DC converter to the inverter control circuit. ing,
    The compressor control circuit according to claim 3.
  5. 　前記１か所は、コモンモードフィルタが含む２つのチョークコイルのうちの一方を用いて接続され、かつ、前記絶縁型ＤＣ－ＤＣコンバータから前記インバータ制御回路へ電力を供給する経路において前記絶縁型ＤＣ－ＤＣコンバータと前記インバータ制御回路との間に前記２つのチョークコイルのうちの他方が設けられている、
    　請求項１に記載の圧縮機制御回路。     The one place is connected using one of two choke coils included in a common mode filter, and the isolated DC-DC in a path for supplying power from the isolated DC-DC converter to the inverter control circuit. The other of the two choke coils is provided between the DC converter and the inverter control circuit;
    The compressor control circuit according to claim 1.
  6. 　前記１か所は、絶縁型ＤＣ－ＤＣコンバータとインバータ制御回路とが搭載された回路基板上の１か所である、
    　請求項１から請求項５の何れか一項に記載の圧縮機制御回路。     The one place is one place on a circuit board on which an insulated DC-DC converter and an inverter control circuit are mounted.
    The compressor control circuit according to any one of claims 1 to 5.
  7. 　前記インバータ制御回路により制御され、圧縮機モータを駆動するインバータ主回路、
    　を備える請求項１から請求項６の何れか一項に記載の圧縮機制御回路。     An inverter main circuit controlled by the inverter control circuit and driving a compressor motor;
    A compressor control circuit according to any one of claims 1 to 6, further comprising:
  8. 　請求項１から請求項７の何れかの圧縮機制御回路と、
    　前記圧縮機制御回路によって制御される圧縮機モータと、
    　前記圧縮機モータによって動作し、冷媒を圧縮する圧縮機と、
    　を備える圧縮装置。     A compressor control circuit according to any one of claims 1 to 7,
    A compressor motor controlled by the compressor control circuit;
    A compressor that operates by the compressor motor and compresses the refrigerant;
    A compression apparatus comprising:
  9. 　請求項１から請求項７の何れかの圧縮機制御回路と、
    　前記圧縮機制御回路の備えるインバータ制御回路が接続される高電圧電源によって駆動される走行用モータと、
    　を備える車両。     A compressor control circuit according to any one of claims 1 to 7,
    A traveling motor driven by a high-voltage power supply to which an inverter control circuit included in the compressor control circuit is connected;
    A vehicle comprising:
PCT/JP2017/012821 2016-03-29 2017-03-29 Compressor control circuit, compression apparatus, and vehicle WO2017170645A1 (en)

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