WO2016080057A1 - インバータ制御装置 - Google Patents
インバータ制御装置 Download PDFInfo
- Publication number
- WO2016080057A1 WO2016080057A1 PCT/JP2015/075537 JP2015075537W WO2016080057A1 WO 2016080057 A1 WO2016080057 A1 WO 2016080057A1 JP 2015075537 W JP2015075537 W JP 2015075537W WO 2016080057 A1 WO2016080057 A1 WO 2016080057A1
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- WIPO (PCT)
- Prior art keywords
- circuit board
- inverter
- wiring
- wiring pattern
- control device
- Prior art date
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Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
- H02H7/1222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to abnormalities in the input circuit, e.g. transients in the DC input
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0263—High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
- H05K1/0298—Multilayer circuits
Definitions
- the present invention relates to an inverter control apparatus in which an inverter is mounted on a multilayer printed circuit board having a laminate structure.
- the wiring between the inverter and the capacitor is made to approach in parallel using a laminate bus bar or the like, thereby reducing the area formed by the wiring and the ground wire, and We are trying to miniaturize.
- the present invention has been made in view of such technical problems, and it is an object of the present invention to provide an inverter control device capable of suppressing overheating due to a short circuit of a laminate portion of a multilayer printed circuit board mounting an inverter. There is.
- the present invention relates to an inverter control apparatus in which an inverter is mounted on a multilayer printed circuit board, and at least one of the wiring downstream of the power shutoff means in the power supply line and at least one upstream of the overcurrent detection means in the ground line. It is characterized in that the wiring of the part is arranged to face in the adjacent layer in the lamination direction of the multilayer printed circuit board.
- At least a part of the wiring downstream of the overcurrent detection means in the power supply line and at least a part of the wiring downstream of the inverter in the ground line are adjacent in the stacking direction of the multilayer printed circuit board
- the layers may be arranged to face each other.
- the overcurrent generated in the inverter is detected for at least a part of the wiring downstream of the power shutoff means in the power supply line and at least a part of the wiring upstream of the overcurrent detection means on the ground line. Since the power supply can be shut off, it is possible to suppress the occurrence of overheating in the facing portion (laminated portion) of the wiring.
- FIG. 1 It is the perspective view which represented the whole brake device of the motor vehicle to which the inverter control apparatus which concerns on this invention is applied. It is a longitudinal cross-sectional view of the brake device shown in FIG. It is a disassembled perspective view of the inverter control apparatus shown in FIG. It is a front view showing the state where the cover member of the inverter control device shown in Drawing 1 was removed. It is the perspective view which looked at the circuit-board single-piece
- FIG. 6 is a perspective view showing a wiring pattern of a first layer of the circuit board shown in FIG. 5 in the same embodiment.
- FIG. 6 is a perspective view showing a wiring pattern of a second layer of the circuit board shown in FIG. 5 in the first embodiment.
- FIG. 6 is a perspective view showing a wiring pattern of a third layer of the circuit board shown in FIG. 5 of the same embodiment.
- FIG. 6 is a perspective view showing a wiring pattern of a fourth layer of the circuit board shown in FIG. 5 of the same embodiment. It is the schematic of the circuit structure which concerns on 2nd Embodiment of this invention.
- FIG. 1 to 11 show a first embodiment of an inverter control device according to the present invention
- FIG. 1 shows the whole of a brake booster 1 to which a motor control device 10 corresponding to the inverter control device according to the present invention is applied
- FIG. 2 is a longitudinal sectional view of the brake booster 1. As shown in FIG.
- the brake booster 1 is driven by a three-phase AC power and provides an electric actuator unit 2 for use in hydraulic control of the brake fluid, a brake operation by a driver, and a vehicle operation state.
- a plurality of stud bolts 4 mainly composed of a motor control device 10 for driving and controlling an electric motor 7 described later constituting the electric actuator unit 2 based on the rear end portion of the electric actuator unit 2 described later Mounted on the vehicle dash panel (not shown).
- the electric actuator unit 2 is a master cylinder that is a hydraulic pressure generating unit that generates a brake hydraulic pressure based on axial movement of a piston member (not shown) slidably provided in the cylinder housing 5 a of the actuator housing 5.
- the electric motor 7 provided in the motor housing 5b attached to the cylinder housing 5a in the actuator housing 5 and applying a moving force to the piston member, and the rotational force of the electric motor 7 It is comprised from the power transmission means (not shown) converted to the linear movement force of the said piston member, and transmitted, and the reservoir tank 8 which stores the brake fluid used for generation
- the push rod 9 coaxially extended with the piston is axially pressed through the brake pedal (not shown) by the driver's brake operation.
- the hydraulic pressure of the brake fluid is controlled by controlling the drive of the electric motor 7 with the excitation current supplied by the motor control device 10 based on the stroke amount of the vehicle and the vehicle operation state.
- FIG. 3 is an exploded perspective view of the motor control device 10
- FIG. 4 is a front view showing a state in which the cover 13 of the motor control device 10 is removed.
- the motor control device 10 is used to calculate the drive operation amount of the electric motor 7 in the ECU housing 11 in which a part of the bottom wall 12 a is integrally provided with the actuator housing 5. It is comprised by accommodating the flat-shaped circuit board 20 in which various electronic components, such as several switching elements 22 as a microcomputer 21 and the inverter which is provided for the drive of the electric motor 7, are mounted.
- the ECU housing 11 is integrally formed with the actuator housing 5 and closed at the bottom of a rectangular cylindrical metal case 12 open toward the side of the actuator housing 5, and the opening of the case 12 is closed.
- a metal cover 13 which is a substantially plate-like cover member.
- the cover 13 is fastened to the case 12 with a plurality of screws S1, and a well-known seal member 14 which is a liquid packing is interposed at the joint portion between the two 12 and 13.
- the case 12 is molded by a so-called aluminum die casting method, and the cover 13 is formed by press-forming a metal plate.
- heat dissipation of the electronic components 21 and 22 is provided on the inner bottom surface of the case 12 at a position facing the mounting area A1 of the microcomputer 21 on the circuit board 20 and the mounting area A2 of the switching elements 22 and the like.
- a rectangular block-shaped heat radiation pedestal 15 is formed to protrude, and a heat transfer material 16 is disposed on the top surface of each heat radiation pedestal 15. Then, by arranging the mounting areas A1 and A2 (see FIG. 6) of the circuit board 20 (rear surface 20b) in contact with the heat transfer material 16, the heat generated in the electronic components 21 and 22 can be It is possible to dissipate heat to the actuator housing 5 formed integrally with the case 12.
- a plurality of heat radiation fins 17 are provided on the outer bottom surface 12c of the case 12 so that effective heat radiation can be performed by the respective heat radiation fins 17.
- the switching elements 22 may be in direct contact with the heat radiation pedestals 15 without the heat transfer material 16 being interposed.
- the heat transfer substance 16 for example, in addition to a sheet-like substance having elasticity made of silicon or the like, liquid grease or the like may be adopted. Furthermore, it is desirable that the heat transfer material 16 have an insulating property.
- FIG. 5 is a perspective view of the circuit board 20 as viewed from the front surface 20a side (cover 13 side), and FIG. 6 is a perspective view of the circuit board 20 as viewed from the back surface 20b side (bottom wall 12a of the case 12).
- the circuit board 20 is a so-called multilayer printed circuit board (four layers in the present embodiment), and as shown in FIGS. 5 and 6, a board made of a nonconductive resin material represented by glass epoxy resin
- a plurality of first to fourth wiring patterns P1 to P4 (see FIGS. 8 to 11), which are a plurality of conductor patterns, are arranged in a stacked manner on the front and back surfaces of and the inside of the inverter circuit composed of the wiring patterns P1 to P4.
- a plurality of screws S2 inserted through fastening holes 20c formed in the outer peripheral edge portion or the central portion are screwed to the fixing portions 12b provided in the case 12 to be housed and fixed in the case 12 There is.
- a connector 23 is provided at one end to supply and receive signals and power with an external electronic device (not shown).
- a microcomputer 21 and a semiconductor relay 24 as current interrupting means are mounted at the middle portion, and the switching elements 22 are mounted at the other end.
- the connector 23 is configured to be exposed to the outside through a connector insertion hole 13 a formed in the cover 13.
- 25 in FIG. 5 indicates a normal choke coil functioning as a noise filter component
- 26 indicates a smoothing capacitor
- 27 indicates a shunt resistor as an overcurrent detection means.
- the shunt resistor 27 detects an overcurrent based on respective voltages on the side of the switching element 22 on the upstream side and the ground side on the downstream side. More specifically, the respective voltages are amplified by an amplification circuit (not shown), and the overcurrent detection unit 28 detects the overcurrent based on the amplified signal.
- the upstream and downstream sides mean upstream and downstream with respect to the current flow direction, and basically, the side connected to the power source is the upstream side, and the side connected to the ground is the downstream side Become.
- the overcurrent detection unit 28 is configured as one function of the microcomputer 21.
- the overcurrent detection unit 28 may be configured to have another arithmetic element, for example, other than one configured as one function of the microcomputer 21.
- the overcurrent detection unit 28 may not have the function as a single element, and may be a circuit board. It is also possible to configure as a detection circuit configured at 20.
- the circuit board 20 includes a control circuit element including the microcomputer 21 for calculating the amount of drive operation of the electric motor 7 and a drive circuit element including the plurality of switching elements 22 as an inverter for driving the electric motor 7. And a noise filter element including the normal choke coil 25 and the smoothing capacitor 26.
- a motor connection portion 29 electrically connected to the electric motor 7 is provided on the back surface 20 b of the circuit board 20.
- the motor connection portion 29 is configured to be connected to the electric motor 7 through a wire (not shown) passing through a communication hole 12 d formed through the bottom wall 12 a of the case 12.
- A6 is the mounting area of the microcomputer 21 (area on the back surface 20b side corresponding to the area where the microcomputer 21 is mounted on the front surface 20a), and A2 is the mounting area of the switching elements 22 (surface 20a)
- the region on the back surface 20b side corresponding to the region on which the switching element 22 is mounted is shown, and as described above, the mounting regions A1 and A2 are respectively mounted on the heat radiation pedestals 15 via the heat transfer substance 16
- heat generated in the microcomputer 21 and the switching elements 22 is transmitted to the heat radiation pedestals 15 and dissipated from the case 12 itself to the outside, or from the case 12 to the actuator housing 5. It is transmitted and dissipated to the outside through the actuator housing 5.
- FIG. 7 is a schematic diagram showing the circuit configuration of the circuit board 20.
- the wiring patterns (P2 and P3) indicated by thick arrows in the figure indicate laminate portions wired in a state of being opposed to each other between adjacent wiring layers (adjacent layers).
- the relationship with the other wiring patterns (P1 and P4) indicated by the thin arrows in FIG. 7 indicates the non-laminated portion wired in the non-facing state in the adjacent layer.
- 8 is a plan view of the first layer showing the wiring pattern of the first layer (surface layer) of the circuit board 20
- FIG. 9 is a plan view of the second layer showing the wiring pattern of the second layer of the circuit board 20.
- 10 is a plan view of the third layer showing the wiring pattern of the third layer of the circuit board 20
- FIG. 11 is a plan view of the fourth layer showing the wiring pattern of the fourth layer (back layer) of the circuit board 20. It is.
- the first wiring pattern from the power supply terminal 29a to the semiconductor relay 24 is each of the switching elements 22 of the ground line Le from the switching elements 22 to the ground terminal 29b is constituted by P1 and the semiconductor relays 24 to the switching elements 22 are constituted by the second wiring pattern P2.
- To the shunt resistor 27 are constituted by the third wiring pattern P3, and the portions from the shunt resistor 27 to the ground terminal 29b are constituted by the fourth wiring pattern P4.
- the second wiring pattern P2 and the third wiring pattern P3 are insulating members (not shown). And the first wiring pattern P1 and the fourth wiring pattern P4, the first wiring pattern P1, the fourth wiring pattern P4, the first wiring pattern P1, the fourth wiring pattern P4, and the first wiring pattern P1.
- the wiring pattern P1 and the third wiring pattern P3 and the second wiring pattern P2 and the fourth wiring pattern P4 are disposed so as not to be opposed to each other in the layer adjacent to the circuit board 20 in the stacking direction.
- the second wiring pattern P2 located downstream of the semiconductor relay 24 and the third wiring pattern located upstream of the shunt resistor 27 By arranging P3 to be opposed to each other in the adjacent layer, even when the opposing portion (laminated portion) of both the wiring patterns P2 and P3 is short-circuited, the overcurrent generated by the short-circuit is detected by the shunt resistor 27 Then, it becomes possible to shut off the power supply to the second and third wiring patterns P2 and P3 and the switching elements 22 by the semiconductor relay 24, and the overheating of the second wiring pattern P2 and the third wiring pattern P3 is suppressed or It can be avoided.
- the first wiring pattern P1 which is upstream from the semiconductor relay 24 and corresponds to a range in which the power supply can not be cut off, and to the range in which the overcurrent is not detected downstream to the shunt resistor 27.
- the circuit board 20 which is a multilayer printed circuit board on which the switching elements 22 are mounted, it is possible to adopt a laminate structure while suppressing or avoiding overheating due to a short circuit between adjacent facing portions.
- the motor control device 10 can be miniaturized.
- noise reduction by the laminate structure can be achieved by the laminate structure.
- FIG. 12 shows a second embodiment of the inverter control device according to the present invention, in which the circuit substrate 30 formed by changing the arrangement of the mounted components and the wiring pattern of the circuit substrate 20 according to the first embodiment is adopted.
- the wiring patterns (P2, P3) indicated by thick arrows in the drawing indicate laminate portions wired in the adjacent layer in the opposite state, and the other portions indicated by thin arrows in the drawing.
- the wiring patterns (P1, P4) non-laminated portions wired in a non-facing state in the adjacent layers are shown.
- the shunt resistor 27 as an overcurrent detection unit is disposed on the power supply line Lp side, and in the power supply line Lp, the parts from the power supply terminal 29a to the semiconductor relay 24 have the first wiring pattern P1,
- the semiconductor relay 24 to the shunt resistor 27 are constituted by the second wiring pattern P2, and the sections from the shunt resistor 27 to the switching elements 22 are constituted by the third wiring pattern P3, respectively, while the switching elements 22 serving as the ground line Le
- the fourth wiring pattern P4 is formed up to the ground terminal 29b.
- the third wiring pattern P3 and the fourth wiring pattern P4 among the wiring patterns P1 to P4 are stacked on the circuit board 30 via an insulating member (not shown).
- the first wiring pattern P1 and the fourth wiring pattern P4, and the second wiring pattern P2 and the fourth wiring pattern P4 are adjacent to each other in the lamination direction of the circuit board 30, while being arranged to face each other in the adjacent layers in the second direction. Are arranged so as not to face each other.
- the overcurrent generated in the third and fourth wiring patterns P3 and P4 is detected on the downstream side of the shunt resistor 27. Since the third and fourth wiring patterns P3 and P4 corresponding to the range in which power supply can be interrupted are arranged to be opposed in the adjacent layers, the opposing portion (laminated portion) of both the wiring patterns P3 and P4 is shorted. Even in this case, the overcurrent generated in the third and fourth wiring patterns P3 and P4 can be detected by the shunt resistor 27 and the power supply to the switching elements 22 can be cut off by the semiconductor relay 24. Overheating in the third wiring pattern P3 and the fourth wiring pattern P4 can be suppressed or avoided.
- the first wiring pattern P1 which is upstream from the semiconductor relay 24 and corresponds to the range where the power supply can not be cut off, and to the range where it is upstream to the shunt resistor 27 and the overcurrent can not be detected.
- the second wiring pattern P2 By making the second wiring pattern P2 not opposite to other wiring patterns, it is possible to suppress or avoid the occurrence of overheating due to the short circuit in the first and second wiring patterns P1 and P2.
- the motor control device 10 (circuit board 30) according to the present embodiment as well as the first embodiment, in the multilayer printed circuit board on which the switching elements 22 are mounted, is provided between adjacent facing portions. It is possible to adopt a laminate structure while suppressing or avoiding overheating due to a short circuit, and the motor control device 10 can be miniaturized.
- noise reduction by the laminate structure can be achieved by the laminate structure.
- the present invention is not limited to the configuration of each of the above-described embodiments.
- the present invention includes the number of laminated circuit boards 20 and 30, the number and arrangement of wiring patterns, and the arrangement of electronic components mounted on the circuit boards 20 and 30.
- the present invention can be freely changed according to the specification of the motor control device 10 and the like without departing from the scope of the present invention.
- the downstream side of the semiconductor relay 24 and the upstream side of the shunt resistor 27 as described in the first embodiment are all over It is not necessary to face each other, and even in a configuration in which only a part of the range faces, it is possible to exhibit the unique effect of the present invention such as avoiding overheating at the time of short circuit of the laminate portion.
- the downstream side of the shunt resistor 27 and the downstream side of the switching elements 22 do not have to be opposed over the entire area as exemplified in the second embodiment. Even in the configuration in which only a part of the range is opposed, the unique effect of the present invention such as suppression or avoidance of overheating at the time of short circuit of the laminate portion can be exerted.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (4)
- 多層プリント回路基板にインバータが実装されてなるインバータ制御装置であって、
電源ラインに設けられ、インバータへの電源供給を遮断する電源遮断手段と、
接地ラインに設けられ、前記インバータの過電流を検出する過電流検出手段と、
を備え、
前記電源ラインにおける前記電源遮断手段の下流側の少なくとも一部の配線と、前記接地ラインにおける前記過電流検出手段の上流側の少なくとも一部の配線とが、前記多層プリント回路基板の積層方向の隣接層において対向するように配置されていることを特徴とするインバータ制御装置。 - 前記電源ラインにおける前記電源遮断手段の上流側の配線と、前記接地ラインにおける前記過電流検出手段の下流側の配線とは、前記多層プリント回路基板の積層方向の隣接層において非対向となるように配置されていることを特徴とする請求項1に記載のインバータ制御装置。
- 多層プリント回路基板にインバータが実装されてなるインバータ制御装置であって、
電源ラインに設けられ、インバータへの電源供給を遮断する電源遮断手段と、
前記電源ラインの前記電流遮断手段の下流側に設けられ、前記インバータの過電流を検出する過電流検出手段と、
を備え、
前記電源ラインにおける前記過電流検出手段の下流側の少なくとも一部の配線と、前記接地ラインにおける前記インバータの下流側の少なくとも一部の配線とが、前記多層プリント回路基板の積層方向の隣接層において対向するように配置されていることを特徴とするインバータ制御装置。 - 前記電源ラインにおける前記過電流検出手段の上流側の配線と、前記接地ラインにおける前記インバータの下流側の配線とは、前記多層プリント回路基板の積層方向の隣接層において非対向となるように配置されていることを特徴とする請求項3に記載のインバータ制御装置。
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CN201580062975.XA CN107148732B (zh) | 2014-11-19 | 2015-09-09 | 逆变器控制装置 |
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JP6519630B1 (ja) * | 2017-10-30 | 2019-05-29 | ダイキン工業株式会社 | 電流検出装置 |
EP3562282B1 (de) * | 2018-04-25 | 2021-07-07 | Siemens Aktiengesellschaft | Backplane |
JP7189421B2 (ja) * | 2018-09-21 | 2022-12-14 | ミツミ電機株式会社 | モータ駆動回路及びモータ駆動装置 |
JP7287107B2 (ja) * | 2019-05-17 | 2023-06-06 | 株式会社デンソー | 電力変換装置 |
CN111628482B (zh) * | 2020-04-27 | 2022-04-19 | 清华大学 | 一种换流器过流保护装置及方法 |
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JP6484436B2 (ja) | 2019-03-13 |
CN107148732B (zh) | 2018-11-23 |
US9960591B2 (en) | 2018-05-01 |
US20170373488A1 (en) | 2017-12-28 |
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