WO2016088460A1 - デュアルモードチョークコイル及びそれを用いた高周波フィルタ並びに車載用モータ一体型電動パワーステアリング及び車載用充電装置 - Google Patents
デュアルモードチョークコイル及びそれを用いた高周波フィルタ並びに車載用モータ一体型電動パワーステアリング及び車載用充電装置 Download PDFInfo
- Publication number
- WO2016088460A1 WO2016088460A1 PCT/JP2015/079504 JP2015079504W WO2016088460A1 WO 2016088460 A1 WO2016088460 A1 WO 2016088460A1 JP 2015079504 W JP2015079504 W JP 2015079504W WO 2016088460 A1 WO2016088460 A1 WO 2016088460A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- columnar body
- coil
- mode choke
- dual mode
- choke coil
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims abstract description 62
- 238000004804 winding Methods 0.000 claims abstract description 22
- 230000009977 dual effect Effects 0.000 claims description 131
- 239000003990 capacitor Substances 0.000 claims description 27
- 239000000696 magnetic material Substances 0.000 claims description 12
- 239000006247 magnetic powder Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 23
- 239000011162 core material Substances 0.000 description 144
- 230000004907 flux Effects 0.000 description 95
- 238000010586 diagram Methods 0.000 description 23
- 239000000463 material Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/13—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines using AC generators and AC motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
-
- 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
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
-
- 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
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/09—Filters comprising mutual inductance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention provides a dual mode choke coil provided between a power source and a load device, which reduces noise generated on the load device side and propagated to the power source side, a high-frequency filter using the same, and an in-vehicle motor integrated type
- the present invention relates to an electric power steering and a vehicle-mounted charging device.
- the generated EMI noise (Electro-Magnetic Interference Noise) becomes conduction noise and flows through the power supply line and ground. It may have adverse effects such as being transmitted to other electrical equipment and causing malfunction.
- EMI noise Electro-Magnetic Interference Noise
- a noise filter is used.
- both ends of the first common mode choke coil in the first and second common mode choke coils for suppressing the propagation of the common mode noise constituting the EMI noise to the power supply side are provided.
- a first magnetic core having a pair of magnetic legs with protrusions formed on the second common mode choke coil, the second common mode choke coil having the same configuration as the first magnetic core, and having protrusions at both ends A second magnetic core is formed so as to be opposed to the protrusions at both ends of the first magnetic core via a gap. Further, the winding direction of the same phase wound around the magnetic legs facing each other through the gap between the first and second magnetic cores is reversed, and the winding is formed with the same phase winding. High impedance against normal mode noise is obtained with magnetic circuit magnetic flux. Thus, it is disclosed that the normal mode choke coil is removed to reduce the size of the filter.
- the conventional noise filter has a configuration in which two common mode choke coils are arranged with a gap of a constant interval as a configuration of the dual mode choke coil, a normal mode current is supplied to the dual mode choke coil.
- the generated magnetic flux is generated in two independent paths that pass through each half region of the two common mode choke coils and the gap between the two common mode choke coils.
- the common mode inductance of the dual mode choke coil is the respective common mode choke.
- the present invention has been made to solve the above-described problems, and has a dual mode choke coil having a high reduction effect in both common mode noise and normal mode noise, a high frequency filter using the dual mode choke coil, and an in-vehicle use.
- An object is to provide a motor-integrated electric power steering and a vehicle-mounted charging device.
- a first dual mode choke coil includes four columnar bodies each having an upright axis arranged on a flat plate, and a rectangular square.
- a lower core made of a magnetic body in which a third columnar body and a fourth columnar body are arranged in parallel to the first columnar body and the second columnar body, and wound around the first columnar body
- the winding directions of the first coil conductor and the third coil conductor wound around the third columnar body are different from each other, and the first coil conductor and the third coil conductor are connected in series.
- the winding directions of the first coil, the second coil conductor wound around the second columnar body, and the fourth coil conductor wound around the fourth columnar body are different from each other.
- the second coil conductor and the fourth coil conductor are A second coil connected to a row; a first upper core made of a magnetic material in contact with an upper portion of the first columnar body and the second columnar body; the third columnar body; A second upper core made of a magnetic material in contact with an upper portion of the fourth columnar body, and the first upper core and the second upper core are arranged with a gap therebetween. Further, the winding direction of the first coil conductor is different from the winding direction of the second coil conductor.
- the first columnar body is a first columnar body.
- a lower core made of a magnetic body in which a third columnar body and a fourth columnar body are arranged in parallel to the second columnar body, and a first coil wound around the first columnar body
- the winding direction of the third coil conductor wound around the conductor and the third columnar body is different from each other, and the first coil conductor and the third coil conductor are connected in parallel.
- the winding direction of the coil, the second coil conductor wound around the second columnar body, and the fourth coil conductor wound around the fourth columnar body are different from each other, and the second coil A conductor and the fourth coil conductor are connected in parallel.
- a second upper core made of a magnetic material in contact with the first upper core, and the first upper core and the second upper core are disposed with a gap between them, and the first upper core
- the winding direction of the coil conductor and the winding direction of the second coil conductor are different from each other.
- the first high-frequency filter according to the present invention includes the dual mode choke coil, wherein at least one capacitor is connected between the first coil and the second coil. Is.
- a second high frequency filter includes the dual mode choke coil, is provided with a ground terminal, and is provided between the ground terminal and the first coil and the second coil. At least one capacitor is connected.
- the on-vehicle motor-integrated electric power steering according to the present invention is characterized in that the dual mode choke coil is provided in a DC input section.
- the on-vehicle charging device is characterized in that the dual mode choke coil is provided in an AC input unit.
- the dual mode choke coil of the present invention by generating a plurality of magnetic flux paths in the dual mode core part, it is possible to realize a higher inductance for the common mode current than in the conventional example, and to reduce the common mode noise. There is an effect that it can be greatly reduced.
- the dual mode choke coil is used as a normal mode choke coil having an effect of reducing a normal mode noise current, and between the pair of coils.
- a capacitance circuit By adding a capacitance circuit, it is possible to realize a high frequency filter corresponding to the high frequency of the normal mode noise current.
- a dual mode choke coil is used as a common mode choke coil having an effect of reducing common mode noise current, and a capacitor is connected between the pair of coils via the ground terminal.
- the dual mode choke coil is provided as a noise filter in order to reduce conduction noise associated with the switching operation of the inverter circuit that drives the motor.
- the frequency band of .5 MHz or less there is an effect that conduction noise can be greatly reduced.
- the dual-mode choke coil is provided as a noise filter, so that 1.5 MHz In the following frequency bands, there is an effect that conduction noise can be significantly reduced.
- FIG. 1 is a perspective view showing an overall configuration of a dual mode choke coil according to Embodiment 1.
- FIG. 3 is an exploded perspective view of a dual mode core part in the first embodiment. 3 is a perspective view showing a coil portion in the first embodiment.
- FIG. FIG. 3 is a schematic diagram showing a connection between a power source and a load of the dual mode choke coil in the first embodiment.
- FIG. 4 is a diagram with respect to a common mode current as viewed from the upper surface of the coil portion in the first embodiment.
- FIG. 4 is a diagram with respect to a common mode current as viewed from the upper surface of the upper core in the first embodiment.
- FIG. 3 is a diagram with respect to a common mode current as viewed from the upper surface of the lower core in the first embodiment.
- FIG. 6 is a diagram with respect to a normal mode current as viewed from the upper surface of the coil portion in the first embodiment.
- FIG. 3 is a diagram with respect to a normal mode current as viewed from the upper surface of the upper core in the first embodiment.
- FIG. 6 is a diagram with respect to a normal mode current as viewed from the upper surface of the lower core in the first embodiment.
- FIG. 10 is a plan view showing another embodiment of the coil arrangement in the first embodiment. It is a disassembled perspective view which shows the other embodiment by which the rubber material which is an elastic body in which the magnetic body powder contained in the dual mode core part in Embodiment 1 is arrange
- FIG. 5 is a cross-sectional view showing a second embodiment of the dual mode core part in the first embodiment.
- FIG. 5 is a cross-sectional view showing a third embodiment of the dual mode core part in the first embodiment.
- FIG. 6 is a perspective view showing an overall configuration of a dual mode choke coil according to a second embodiment.
- FIG. 10 is an exploded perspective view of a dual mode core part in the second embodiment.
- FIG. 10 is a perspective view showing a coil portion in a second embodiment.
- FIG. 10 is a diagram with respect to a common mode current as viewed from the upper surface of the coil portion in the second embodiment.
- FIG. 10 is a diagram with respect to a normal mode current viewed from the upper surface of a coil portion in the second embodiment.
- FIG. 6 is an exploded perspective view of a dual mode core part in a dual mode choke coil according to a third embodiment.
- FIG. 10 is a diagram with respect to a common mode current viewed from the upper surface of the lower core in the third embodiment.
- FIG. 10 is a diagram with respect to a normal mode current as viewed from the upper surface of the lower core in the third embodiment.
- FIG. 10 is an exploded perspective view of a dual mode core part in a dual mode choke coil according to a fourth embodiment. It is a figure with respect to the common mode electric current seen from the upper surface of the lower core in Embodiment 4.
- FIG. It is a figure with respect to the normal mode electric current seen from the upper surface of the lower core in Embodiment 4. It is the figure seen from the upper surface of the coil part of the high frequency filter which concerns on Embodiment 5.
- FIG. FIG. 10 is an equivalent circuit diagram in the fifth embodiment.
- FIG. 10 is an equivalent circuit diagram in the fifth embodiment.
- FIG. 10 is an exploded perspective view of a dual mode core part in a high frequency filter according to a sixth embodiment. It is the figure seen from the upper surface of the coil part in Embodiment 6.
- FIG. FIG. 10 is an equivalent circuit diagram in the sixth embodiment.
- FIG. 10 is an exploded perspective view of an in-vehicle motor-integrated electric power steering according to a seventh embodiment.
- FIG. 10 is a schematic circuit diagram of an EPS according to the seventh embodiment.
- FIG. 10 is a schematic circuit diagram of an in-vehicle charging device according to an eighth embodiment.
- FIG. 10 is a circuit diagram of an AC / DC conversion unit in an eighth embodiment.
- FIG. 1 is a perspective view showing an overall configuration of a dual mode choke coil according to Embodiment 1
- FIG. 2 is an exploded perspective view of a dual mode core portion
- FIG. 3 is a perspective view showing a coil portion. is there.
- FIG. 4 is a schematic diagram showing the connection of the dual mode choke coil with the power source and the load.
- the dual mode choke coil 1 includes a dual mode core portion 2 and a coil portion 3.
- the dual mode core portion 2 includes the first columnar body 5 a and the second columnar body 5 b and the third columnar body 5 c and the fourth columnar body parallel to the axis formed by them.
- 5d is a lower core 4 made of a magnetic material disposed on a flat plate 5f, and a first upper core 6a made of a flat magnetic material in contact with the upper portions of the first columnar body 5a and the second columnar body 5b.
- the coil portion 3 includes two coil conductors wound around the first columnar body 5a and the third columnar body 5c so that the directions of magnetic fluxes generated are opposite to each other.
- the coil portion 3 includes two coil conductors wound around the first coil 3a, the second columnar body 5b, and the fourth columnar body 5d connected in series so that the directions of magnetic fluxes generated are opposite to each other.
- the magnetic flux generated by the coil conductor wound around the first columnar body 5a is connected in series so that the direction of the magnetic flux generated by the coil conductor wound around the second columnar body 5b is the same.
- the second coil 3b disposed in the.
- the direction of the magnetic flux is defined as follows.
- the dual mode choke coil 1 is connected to the power source 50 and the load 60. Is the case.
- the direction of the magnetic flux generated in the first columnar body 5a and the second columnar body 5b is the direction from the back side of the drawing to the near side, and the magnetic flux generated in the third columnar body 5c and the fourth columnar body 5d. Is the direction from the front side to the back side of the page. Note that the power conversion circuit and the like are omitted.
- FIG. 5 is a top view of the first coil 3a and the second coil 3b, showing the common mode current direction and the direction of magnetic flux generated when the common mode current flows.
- an arrow 8 indicates the direction of current flowing through the first coil 3a and the second coil 3b
- magnetic flux directions 9a to 9d indicate magnetic fluxes generated from the first columnar body 5a to the fourth columnar body 5d, respectively.
- the magnetic flux directions 9a and 9d are directions from the back side to the near side
- the magnetic flux directions 9b and 9c are directions from the near side to the back side, respectively. Show. FIG.
- FIG. 6 is a top view of the first upper core 6a and the second upper core 6b, and shows the direction of magnetic flux generated in the first upper core 6a and the second upper core 6b when a common mode current flows.
- FIG. 7 is a top view of the lower core 4 and shows the direction of magnetic flux generated in the lower core 4 when a common mode current flows. 6 and 7, an arrow 9 indicates the direction of magnetic flux.
- the first upper core 6a generates magnetic flux in the direction from the first columnar body 5a to the second columnar body 5b, and the second upper core 6b.
- the magnetic flux is generated in the direction from the fourth columnar body 5d to the third columnar body 5c.
- the magnetic flux generated in the second columnar body 5 b reaches the lower core 4 from the front side of the paper to the back side, and the direction in which the magnetic flux is generated is the paper surface.
- An attempt is made to take a path that is sucked into the first columnar body 5a or the fourth columnar body 5d from the back side toward the front side.
- there is no gap in the lower core 4 so that the magnetic flux generated in the second columnar body 5b is the first columnar body 5a or A route to the fourth columnar body 5d is taken.
- the magnetic flux generated in the third columnar body 5c also takes a path to the first columnar body 5a or the fourth columnar body 5d.
- the lower core 4 has the second columnar body 5b to the first columnar body 5a or the fourth columnar body 5d and the third columnar body 5c to the second columnar body 5c. Magnetic flux is generated in the direction of the first columnar body 5a or the fourth columnar body 5d.
- FIG. 8 is a top view of the first coil 3a and the second coil 3b, showing the normal mode current direction and the direction of magnetic flux generated when the normal mode current flows.
- an arrow 8 indicates the direction of current flow
- 9a to 9d indicate the directions of magnetic fluxes generated from the first columnar body 5a to the fourth columnar body 5d, respectively.
- the magnetic flux directions 9a and 9b indicate the direction from the back side to the front side of the paper
- the magnetic flux directions 9c and 9d indicate the direction from the front side to the back side of the paper, respectively.
- FIG. 9 is a top view of the first upper core 6a and the second upper core 6b, and shows the direction of magnetic flux generated in the first upper core 6a and the second upper core 6b when a normal mode current flows.
- FIG. 10 is a top view of the lower core 4 and shows the direction of magnetic flux generated in the lower core 4 when a normal mode current flows.
- an arrow 9 indicates the direction of magnetic flux.
- the first upper core 6 a and the second upper core 6 b include the first columnar body 5 a to the third columnar body 5 c and the second columnar body. Magnetic flux is generated in the direction from 5b to the fourth columnar body 5d.
- the magnetic flux generated in the third columnar body 5 c reaches the lower core 4 from the front side of the paper to the back side, and the direction in which the magnetic flux is generated is the paper surface.
- a route is taken from the back side into the first columnar body 5a or the second columnar body 5b which is the front side direction.
- the magnetic flux generated in the fourth columnar body 5d also takes a path to the first columnar body 5a or the second columnar body 5b.
- the lower core 4 includes the third columnar body 5c to the first columnar body 5a or the second columnar body 5b, and the fourth columnar body 5d to the second columnar body 5d. Magnetic flux is generated in the direction of the first columnar body 5a or the second columnar body 5b.
- the dual mode choke coil 1 when a normal mode current flows through the dual mode choke coil 1 according to the first embodiment, a plurality of magnetic flux paths are generated in the dual mode core unit 2, and an inductance for the normal mode current can be realized. Furthermore, in the dual mode choke coil 1 according to the first embodiment, as shown in FIG. 10, in the lower core 4, the direction from the third columnar body 5 c to the second columnar body 5 b and the fourth columnar body. Since a magnetic flux is also generated in the direction from 5d to the first columnar body 5a, more magnetic flux paths are generated than in the conventional example, and as a result, a higher inductance can be realized for the normal mode current than in the conventional example. it can.
- the dual mode core unit 2 when the normal mode current flows, all the generated magnetic flux paths pass through the gap 7, so that the magnetic flux concentrates in the gap 7.
- the dual mode core unit 2 is less likely to cause magnetic saturation, and can maintain an inductance with respect to the normal mode current even when a DC or low frequency normal mode current that is an operation mode of the device flows. That is, the dual mode choke coil 1 according to the first embodiment can realize a dual mode choke coil having higher inductance than the conventional example with respect to the common mode current and the normal mode current with one component.
- the dual mode core portion is an integral type, the structure is stronger than the conventional example in which the core is a separated type, and the gap dimension is increased by an external force such as vibration. It has features that are difficult to fluctuate.
- the first upper core 6a, the second upper core 6b, and the lower core 4 of the dual mode core portion 2 have a rectangular parallelepiped shape, and the columnar body has a cylindrical shape.
- the shape of each core is not limited to a rectangular parallelepiped or a cylinder as long as the same effect as the dual mode choke coil 1 according to the first embodiment can be obtained.
- ferrite can be used as a magnetic material, but other magnetic materials may be used.
- a conductive metal conductor is used for the coil portion 3, but it may be formed of a conductor pattern of a thick copper substrate.
- the coil unit 3 is configured by using the same type of coils for the first coil 3c and the second coil 3d, and the second coil. 3d may be obtained by inverting the first coil 3c with respect to the AA axis.
- the first coil 3c and the second coil 3d are of the same type, the number of types of coils can be reduced.
- a rubber material which is an elastic body containing magnetic powder
- the first columnar body 5a and the upper core 6a Between the second columnar body 5b and the upper core 6a, between the third columnar body 5c and the upper core 6b, and between the fourth columnar body 5d and the upper core 6b.
- the rubber materials 21a to 21d containing the powder are respectively arranged.
- the rubber material 21a to 21d containing the magnetic powder by inserting the rubber materials 21a to 21d containing the magnetic powder, the rubber material is compressed, whereby the interval between the butted portions of the columnar bodies 5a to 5d and the upper cores 6a and 6b is reduced.
- high inductance can be realized in the common mode.
- the rubber material to be inserted is the rubber material 21a to 21d containing the magnetic powder, but is not limited to this, and the columnar bodies 5a to 5d and the upper cores 6a and 6b are made of a material having a relative permeability exceeding 1. Any softer material may be used.
- the upper core 61a and the upper core 61b are respectively provided with two integrated cylindrical bodies 62a and 62b and 62c and 62d (the cylindrical bodies 62a and 62c are not shown), and the upper core.
- 61a and the upper core 61b are magnetic bodies in which a flat plate and a cylindrical body are integrated.
- the first columnar body 51a to the fourth columnar body 51d of the lower core 44 are fitted inside the cylindrical bodies 62a to 62d (the first columnar body 51a and the third columnar body 51c are not shown).
- the structure of the core material of the core part 2 shown by the cross-section B of FIG. 2 may be changed.
- the upper core 63a and the upper core 63b are respectively provided with two integrated columnar bodies 64a and 64b and 64c and 64d (the columnar bodies 64a and 64c are not shown).
- the upper core 63b is a magnetic body in which a flat plate and a columnar body are integrated.
- the columnar bodies 52a to 52d of the lower core 45 are brought into contact with the columnar bodies 64a to 64d, respectively (columnar bodies 52a and 52c are not shown).
- the columnar body may be provided on both the lower core and the upper core, and the same effect as in the case of the dual mode core portion shown in FIG. 2 described above can be obtained.
- the upper core is composed of a plurality of flat plate-like magnetic bodies, thereby generating a plurality of magnetic flux paths.
- the first coil and the second coil are described as being used by connecting two coil conductors having different winding directions, but the two coil conductors are wound. You may connect so that the direction of the magnetic flux which mutually generate
- FIG. 15 is a perspective view showing the overall configuration of the dual mode choke coil according to the second embodiment
- FIG. 16 is an exploded perspective view of the dual mode core portion
- FIG. 17 is a perspective view showing the coil portion. is there.
- the difference from the dual mode choke coil 1 according to the first embodiment is that the configuration of the coil section 13 is different.
- the dual mode choke coil 10 includes a dual mode core portion 2 and a coil portion 13.
- the configuration of the dual mode core unit 2 is the same as that of the first embodiment, and thus the description thereof is omitted.
- the coil portion 13 includes two coil conductors wound around each of the first columnar body 5a and the third columnar body 5c so that the directions of magnetic fluxes generated are opposite to each other.
- the magnetic flux generated by the coil conductor wound around the first columnar body 5a is connected in parallel so that the direction of the magnetic flux generated by the coil conductor wound around the second columnar body 5b is the same.
- the second coil 13b disposed in the.
- FIG. 17 is a top view of the first coil 13a and the second coil 13b, showing the direction of the common mode current and the direction of the magnetic flux generated when the common mode current flows.
- an arrow 9 indicates the direction of current flow
- a solid line arrow indicates the direction of current at the input / output ends of the first coil 13a and the second coil 13b on the front side of the page
- a broken line arrow indicates the back of the page. The direction of the current at the input / output ends of the first coil 13a and the second coil 13b on the side is shown.
- Magnetic flux directions 9a to 9d indicate directions of magnetic fluxes generated from the first columnar body 5a to the fourth columnar body 5d, respectively.
- the magnetic flux directions 9a to 9d generated from the first columnar body 5a to the fourth columnar body 5d are caused by the common mode current in the dual mode choke coil 1 according to the first embodiment shown in FIG. This is the same as when Therefore, the magnetic flux generated in the dual mode core unit 2 by the common mode current is the same as the magnetic flux direction shown in FIGS. 6 and 7, and as a result, the dual mode choke coil 10 according to the second embodiment Similar to the dual mode choke coil 1 according to the first mode, it is possible to realize an inductance higher than that of the conventional example with respect to the common mode current.
- FIG. 19 is a top view of the first coil 13a and the second coil 13b and shows the direction of magnetic flux generated when the normal mode current and the normal mode current flow.
- an arrow 8 indicates the direction of current flow
- a solid line arrow indicates the direction of current at the input / output ends of the first coil 13a and the second coil 13b on the front side of the page
- a broken line arrow indicates the back of the page. The direction of the current at the input / output ends of the first coil 13a and the second coil 13b on the side is shown.
- Magnetic flux directions 9a to 9d indicate directions of magnetic fluxes generated from the first columnar body 5a to the fourth columnar body 5d, respectively.
- the magnetic flux directions 9a to 9d generated from the first columnar body 5a to the fourth columnar body 5d are caused by the normal mode current in the dual mode choke coil 1 according to the first embodiment shown in FIG. This is the same as when Therefore, the magnetic flux generated in the dual mode core unit 2 by the normal mode current is the same as the magnetic flux direction shown in FIGS. 9 and 10, and as a result, the dual mode choke coil 10 according to the second embodiment Similar to the dual mode choke coil 1 according to the first embodiment, it is possible to realize an inductance higher than that of the conventional example with respect to the normal mode current.
- the dual mode choke coil 10 since the two coil conductors are connected in parallel, the first columnar body 5a to the fourth columnar body with respect to the same magnitude of input current.
- the amount of current flowing through the coil conductor wound around 5d is about half that in the first embodiment. Therefore, in the case of the same amount of current, the cross-sectional area of the coil conductor of the coil portion 13 can be made smaller than the cross-sectional area of the coil portion 3 of the dual mode choke coil according to the first embodiment.
- the dual mode choke coil according to the second embodiment has the same effect as that of the first embodiment, and the two coil conductors constituting each coil are connected in parallel. It is possible to reduce the cross-sectional area of the conductor, facilitate the formation of the coil structure, and reduce the overall dimensions of the dual mode choke coil.
- FIG. 20 is an exploded perspective view of the dual mode core portion in the dual mode choke coil according to the third embodiment.
- the difference from the dual mode choke coil 1 according to the first embodiment is that the first columnar body 5a, the third columnar body 5c, the second columnar body 5b, and the fourth column are formed on the lower core 41 of the dual mode core portion 12.
- the cut portions 17 are provided in a part of the side surface between the columnar bodies 5d in a direction parallel to the gap 7. Since other configurations are the same as those of the first embodiment, description thereof is omitted.
- 21 and 22 show the magnetic flux of the lower core 41 with respect to the common mode current and the normal mode current, respectively.
- the first columnar body 5 a and the third columnar body are formed by the presence of the notch portion 17 as compared with the magnetic flux direction 9 shown in FIGS. 7 and 10. 5c and the magnetic flux path between the second columnar body 5b and the fourth columnar body 5d changes. That is, it is possible to adjust the common mode and normal mode magnetic fluxes generated in the lower core 41 by the notch 17, and as a result, it is possible to adjust the common mode and normal mode inductance of the dual mode choke coil. .
- the cut portion is provided in a part of the side surface of the lower core in a direction parallel to the gap of the upper core.
- FIG. 23 is an exploded perspective view of the dual mode core portion in the dual mode choke coil according to the fourth embodiment.
- the difference from the dual mode choke coil 1 according to the first embodiment is that the first columnar body 5a, the second columnar body 5b, the third columnar body 5c, and the fourth column are formed on the lower core 42 of the dual mode core portion 22.
- the cut portions 18 are provided in part of the side surfaces between the columnar bodies 5d in the direction perpendicular to the gap 7. Since other configurations are the same as those of the first embodiment, description thereof is omitted.
- the first columnar body 5 a and the second columnar body are present due to the presence of the cut portions 18 compared to the magnetic flux direction 9 shown in FIGS. 7 and 10. 5b, and the magnetic flux path between the third columnar body 5c and the fourth columnar body 5d changes.
- the magnetic flux in the normal mode is between the first columnar body 5a and the second columnar body 5b, and between the third columnar body 5c and the fourth columnar body 5d. Therefore, unlike the third embodiment, in the fourth embodiment, only the common mode magnetic flux is affected by the notch 18. That is, only the common mode magnetic flux generated in the lower core 42 can be adjusted by the cut portion 18, and as a result, only the common mode inductance of the dual mode choke coil can be adjusted.
- the cut portion is provided in a part of the side surface of the lower core in the direction orthogonal to the gap of the upper core, so that only the common mode has the inductance. There is an effect that it becomes possible to adjust.
- FIG. FIG. 26 is a diagram seen from the top surface of the coil portion of the high frequency filter according to the fifth embodiment, and FIG. 27 is an equivalent circuit diagram thereof.
- the high frequency filter according to the fifth embodiment includes three chip capacitors between the first coil 3a and the second coil 3b of the dual mode choke coil 1 according to the first embodiment. 20 is connected. Since the configuration of the dual mode choke coil is the same as that of the first embodiment, the description thereof is omitted.
- 14 indicates a capacitance circuit
- 15 indicates a normal mode choke circuit.
- a high frequency filter circuit in which a capacitor circuit 14 and a normal mode choke circuit 15 are alternately connected between the first coil 3a and the second coil 3b is configured, and the effect of reducing the normal mode noise current is high. Circuit configuration.
- the high frequency filter according to the fifth embodiment uses the dual mode choke coil 1 according to the first embodiment, and can be configured as a high frequency filter having a high effect of reducing normal mode noise current.
- the form of the component is not limited to the chip capacitor as long as it is a capacitor circuit.
- the number is not limited to three.
- the dual mode choke coil is used as a normal mode choke coil having an effect of reducing the normal mode noise current, and a capacitance circuit is provided between the pair of coils.
- FIG. 28 is an exploded perspective view of the dual mode core part in the high frequency filter according to the sixth embodiment
- FIG. 29 is a view as seen from the upper surface of the coil part.
- FIG. 30 is an equivalent circuit diagram thereof.
- the high-frequency filter according to the sixth embodiment is grounded by the grounding wire 31 through the through hole 30 that penetrates the lower core 43 of the dual mode core portion 32 and the through hole 30.
- a ground terminal 33 is provided, and six chip capacitors 20 are connected between the first coil 3 a and the second coil 3 b via the ground terminal 33. Since the configuration of the dual mode choke coil is the same as that of the first embodiment, the description thereof is omitted.
- reference numeral 14 denotes a capacitance circuit
- 19 denotes a common mode choke circuit.
- a high-frequency filter circuit in which the capacitor circuit 14 and the common mode choke circuit 19 are alternately connected between the first coil 3a and the second coil 3b and the line-to-ground is configured, and the reduction with respect to the common mode noise current is achieved.
- the circuit configuration is highly effective.
- the high-frequency filter according to the sixth embodiment uses the dual mode choke coil 1 according to the first embodiment, and can be configured as a high-frequency filter having a high common mode noise current reduction effect.
- the form of the component is not limited to the chip capacitor as long as it is a capacitor circuit.
- the number is not limited to six.
- the ground wire 31 is passed through the through hole 30 provided in the lower core 43 of the dual mode core portion 32.
- the through hole 30 is not necessarily provided. It is not necessary to provide the ground wire 31 and the ground wire 31 may be grounded between the first upper core 6 a and the second upper core 6 b and the lower core 4.
- the dual mode choke coil is used as a common mode choke coil having an effect of reducing the common mode noise current, and a pair of coils is connected via the ground terminal.
- the addition of the capacitor circuit has an effect of realizing a high frequency filter corresponding to the high frequency of the common mode noise current.
- FIG. 31 is an exploded perspective view showing an on-vehicle motor-integrated electric power steering (EPS: hereinafter referred to as EPS) according to the seventh embodiment.
- FIG. 32 is a schematic circuit diagram of the EPS.
- the EPS is provided with a dual mode choke coil as a noise filter.
- a DC power source 106 to which DC power is supplied by a positive side electric wire 123 and a negative side electric wire 124 is connected to the EPS 100 housed in the housing 130.
- the EPS 100 includes a capacitor 102 connected between a positive electric wire 123 and a negative electric wire 124 introduced via a connector 125 of the housing lid 131, and a dual connected to the positive electric wire 123 and the negative electric wire 124.
- the mode choke coil 1, the positive-side electric wire 123 and the negative-side electric wire 124, and the grounding (housing 130) are provided on the grounded capacitors 103 and 104 and the heat sink 105, respectively.
- the motor 126 is driven by alternating current.
- the dual mode choke coil 1, the control board 120, the insulating board 122, the heat sink 105, and the motor 126 are housed in a housing 130.
- the dual mode choke coil 1 is provided between the DC power source 106 and the inverter circuit 127 and is connected to the inverter circuit 127.
- the inverter circuit 127 includes a pair of MOSFETs 127a and 127b for u-phase output, a pair of MOSFETs 127c and 127d for output of v-phase, and a pair of MOSFETs 127e and 127f for output of w-phase, respectively, and a control microcomputer.
- 121 converts DC power into three-phase AC power.
- the motor 126 is driven by the converted AC power.
- MOSFETs 127a to 127f perform a switching operation in accordance with a control signal of the microcomputer 121. Conductive noise generated by the switching operation is decoupled by the dual mode choke coil 1 and the capacitor 102, and these serve as a noise filter. Reduced.
- the CISPR International Special Committee on International Radio Interference: International Special Committee on Radio Interference
- the CISPR recommends recommended limits for radio interference in the frequency band of 150 kHz to 1,000 MHz for protecting in-vehicle receivers.
- the frequency of the switching operation of the inverter circuit 127 in the present embodiment is, for example, 20 kHz
- the conduction noise of the harmonics of 8 times or more of 20 kHz that is 150 kHz or more is a target, and it is required to reduce these. Yes.
- EPS100 Since EPS100 is mounted on a car, it must be ensured that the conduction noise does not affect the listening of car radio.
- 150 kHz to 1.5 MHz is a frequency band used for car radios, and is a frequency band in which there is a strong demand from automobile manufacturers to reduce conduction noise.
- the conduction noise can be greatly reduced in a frequency band of 1.5 MHz or less where the conduction noise is the largest. The influence on listening can be reduced.
- the dual-mode choke coil is provided as a noise filter, so that 1.5 MHz In the following frequency bands, there is an effect that conduction noise can be significantly reduced.
- FIG. 33 is a schematic circuit diagram of the in-vehicle charging device according to the eighth embodiment.
- FIG. 34 is a circuit diagram of an AC / DC converter in the eighth embodiment.
- the vehicle-mounted charging device is mounted on an electric vehicle (EV) or a hybrid electric vehicle (HEV), and charges a vehicle-mounted secondary battery from a commercial AC power supply.
- the in-vehicle charging device includes a dual mode choke coil as a noise filter.
- a commercial AC power supply 210 that supplies AC power and a vehicle-mounted secondary battery 250 to be charged are connected to the vehicle-mounted charging device 200.
- the in-vehicle charging device 200 includes a noise filter 220 and an AC / DC conversion unit 230.
- the noise filter 220 is connected between the capacitor 221 connected between the power supply line 210a and the power supply line 210b of the commercial AC power supply 210, the dual mode choke coil 1, and the power supply line 210a, the power supply line 210b, and the ground. And capacitors 222 and 223.
- the AC / DC conversion unit 230 includes a rectifier circuit 231 with a PFC (Power Factor Correction) circuit, an inverter circuit 232, an insulation transformer 233, and a rectifier circuit 234. .
- PFC Power Factor Correction
- the rectifier circuit with a PFC circuit 231 includes a rectifier circuit unit composed of four diodes 231a to 231d constituting a bridge, a reactor 231e connected to the positive side of the output, and a switching element connected between the reactor 231e and the negative side 231f, a diode 231g connected to the reactor 231e, and a PFC circuit unit including a smoothing capacitor 231h connected between the diode 231g and the negative electrode side.
- the PFC circuit improves rectification efficiency by switching of the switching element 231f. Thereby, commercial alternating current is converted into direct current.
- the inverter circuit 232 includes two sets of switching elements MOSFETs 232a and 232b and MOSFETs 232c and 232d. By alternately turning on and off the MOSFETs 232a to 232d, the direct current output from the rectifier circuit 231 with the PFC circuit is changed to high frequency alternating current. Convert. The converted alternating current is transmitted to the rectifier circuit 234 via the insulating transformer 233, converted into direct current by the rectifier circuit 234, and used for charging the in-vehicle secondary battery.
- the rectifier circuit 234 has four diodes 234a to 234d that form a bridge, as in the rectifier circuit portion of the rectifier circuit 231 with a PFC circuit, and outputs a direct current from a smoothing capacitor 234e connected to the output side.
- the output current can be controlled by turning on and off the MOSFETs 232a to 232d of the switching circuit 232 and controlling the pulse width.
- the frequency of the switching operation of the inverter circuit 232 in the present embodiment is, for example, 65 kHz
- the conduction noise of the harmonics more than 3 times of 65 kHz that is 150 kHz or more stipulated in the standard CISPR25 is targeted. Reduction is required.
- the conduction noise must not affect the listening of the car radio.
- the conduction noise can be significantly reduced in a frequency band of 1.5 MHz or less where the conduction noise is greatest. Therefore, the influence on listening to car radio can be reduced.
- the dual-mode choke coil is provided as a noise filter in order to reduce conduction noise associated with the switching operation of the inverter circuit that controls the current to be charged.
- conduction noise can be significantly reduced in a frequency band of 1.5 MHz or less.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Composite Materials (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Power Conversion In General (AREA)
- Inverter Devices (AREA)
- Filters And Equalizers (AREA)
Abstract
Description
図1は、実施の形態1に係るデュアルモードチョークコイルの全体構成を示す斜視図であり、図2は、デュアルモードコア部の分解斜視図であり、図3は、コイル部を示す斜視図である。また、図4は、デュアルモードチョークコイルの電源及び負荷との接続を示す概略図である。
図5は、第1のコイル3a及び第2のコイル3bの上面図であり、コモンモード電流方向及びコモンモード電流が流れる際に発生する磁束方向を示している.図5において、矢印8は、第1のコイル3a及び第2のコイル3bに流れる電流方向を、磁束方向9aから9dは、それぞれ第1の柱状体5aから第4の柱状体5dに発生する磁束の方向を示しており、図5から図7では、磁束方向9aと9dは、紙面奥側から手前側への方向を、磁束方向9bと9cは、紙面手前側から奥側への方向をそれぞれ示している。図6は、第1の上部コア6aと第2の上部コア6bの上面図で、コモンモード電流が流れる際に、第1の上部コア6aと第2の上部コア6bに発生する磁束の方向を示しており、同様に、図7は、下部コア4の上面図で、コモンモード電流が流れる際に、下部コア4に発生する磁束の方向を示している。図6と図7において、矢印9は、磁束方向を示している。
図8は、第1のコイル3a及び第2のコイル3bの上面図であり、ノーマルモード電流方向及びノーマルモード電流が流れる際に発生する磁束方向を示している。図8において、矢印8は、電流の流れる方向を、9aから9dは、それぞれ第1の柱状体5aから第4の柱状体5dに発生する磁束の方向を示しており、図8から図10では、磁束方向9aと9bは、紙面奥側から手前側への方向を、磁束方向9cと9dは、紙面手前側から奥側への方向をそれぞれ示している。図9は、第1の上部コア6aと第2の上部コア6bの上面図で、ノーマルモード電流が流れる際に、第1の上部コア6aと第2の上部コア6bに発生する磁束方向を示しており、同様に、図10は、下部コア4の上面図で、ノーマルモード電流が流れる際に、下部コア4に発生する磁束方向を示している。図9と図10において、矢印9は、磁束方向を示している。
図15は、実施の形態2に係るデュアルモードチョークコイルの全体構成を示す斜視図であり、図16は、デュアルモードコア部の分解斜視図であり、図17は、コイル部を示す斜視図である。図17に示すように、実施の形態1に係るデュアルモードチョークコイル1との違いは、コイル部13の構成が異なる点である。
図17は、第1のコイル13a及び第2のコイル13bの上面図であり、コモンモード電流方向及びコモンモード電流が流れる際に発生する磁束方向を示している。図18において、矢印9は、電流の流れる方向を示し、実線矢印は紙面手前側の第1のコイル13a及び第2のコイル13bの入出力端部での電流の向きを、破線矢印は紙面奥側の第1のコイル13a及び第2のコイル13bの入出力端部での電流の向きをそれぞれ示している。また、磁束方向9aから9dは、それぞれ第1の柱状体5aから第4の柱状体5dに発生する磁束の方向を示す。図18から分かるように、第1の柱状体5aから第4の柱状体5dに発生する磁束方向9aから9dは、図5で示した実施の形態1に係るデュアルモードチョークコイル1にコモンモード電流が流れた場合と同様である。したがって、コモンモード電流によりデュアルモードコア部2に発生する磁束は、図6及び図7で示した磁束方向と同じになり、その結果、実施の形態2に係るデュアルモードチョークコイル10は、実施の形態1に係るデュアルモードチョークコイル1と同じく、コモンモード電流に対して、従来例よりも高いインダクタンスを実現することができる。
図19は、第1のコイル13a及び第2のコイル13bの上面図で、ノーマルモード電流及びノーマルモード電流が流れる際に、発生する磁束方向を示している。図19において、矢印8は、電流の流れる方向を示し、実線矢印は紙面手前側の第1のコイル13a及び第2のコイル13bの入出力端部での電流の向きを、破線矢印は紙面奥側の第1のコイル13a及び第2のコイル13bの入出力端部での電流の向きをそれぞれ示している。また、磁束方向9aから9dは、それぞれ第1の柱状体5aから第4の柱状体5dに発生する磁束の方向を示す。図19から分かるように、第1の柱状体5aから第4の柱状体5dに発生する磁束方向9aから9dは、図8で示した実施の形態1に係るデュアルモードチョークコイル1にノーマルモード電流が流れた場合と同様である。したがって、ノーマルモード電流によりデュアルモードコア部2に発生する磁束は、図9及び図10で示した磁束方向と同じになり、その結果、実施の形態2に係るデュアルモードチョークコイル10は、実施の形態1に係るデュアルモードチョークコイル1と同じく、ノーマルモード電流に対して、従来例よりも高いインダクタンスを実現することができる。
図20は、実施の形態3に係るデュアルモードチョークコイルにおけるデュアルモードコア部の分解斜視図である。実施の形態1に係るデュアルモードチョークコイル1との違いは、デュアルモードコア部12の下部コア41に、第1の柱状体5aと第3の柱状体5c及び第2の柱状体5bと第4の柱状体5dの間の側面の一部に、間隙7に対して平行となる方向にそれぞれ切込み部17が設けられている点である。他の構成は、実施の形態1と同じであるので説明を省略する。
図23は、実施の形態4に係るデュアルモードチョークコイルにおけるデュアルモードコア部の分解斜視図である。実施の形態1に係るデュアルモードチョークコイル1との違いは、デュアルモードコア部22の下部コア42に、第1の柱状体5aと第2の柱状体5b及び第3の柱状体5cと第4の柱状体5dの間の側面の一部に、間隙7に対して直交となる方向にそれぞれ切込み部18が設けられている点である。他の構成は、実施の形態1と同じであるので説明を省略する。
図26は、実施の形態5に係る高周波フィルタのコイル部の上面から見た図であり、図27は、その等価回路図である。図26に示すように、実施の形態5に係る高周波フィルタは、実施の形態1に係るデュアルモードチョークコイル1の第1のコイル3aと第2のコイル3bとの間に、3個のチップコンデンサ20が接続されたものである。デュアルモードチョークコイルの構成は、実施の形態1と同じであるので説明を省略する。
図28は、実施の形態6に係る高周波フィルタにおけるデュアルモードコア部の分解斜視図であり、図29は、コイル部の上面から見た図である。図30は、その等価回路図である。図28及び図29に示すように、実施の形態6に係る高周波フィルタは、デュアルモードコア部32の下部コア43を貫通する貫通孔30と、貫通孔30を通って接地線31により接地される接地端子33とが設けられ、接地端子33を介して第1のコイル3aと第2のコイル3bとの間に6個のチップコンデンサ20が接続されたものである。デュアルモードチョークコイルの構成は、実施の形態1と同じであるので説明を省略する。
図31は、実施の形態7に係る車載用モータ一体型電動パワーステアリング(EPS:Electric Power Steering、以下、EPSと称する。)を示す分解斜視図である。図32は、EPSの概略回路図である。実施の形態7では、EPSにノイズフィルタとしてデュアルモードチョークコイルを備えたものである。
図33は、実施の形態8に係る車載用充電装置の概略回路図である。図34は、実施の形態8におけるAC/DC変換部の回路図である。車載用充電装置は、電気自動車(EV)やハイブリッド電気自動車(HEV)に搭載されるもので、商用交流電源から車載用2次電池に充電するものである。実施の形態8では、車載用充電装置にノイズフィルタとしてデュアルモードチョークコイルを備えたものである。
Claims (11)
- 平板上に、それぞれの軸が直立した4つの柱状体が四角形の四角に設置されているとともに、前記柱状体において、第1の柱状体及び第2の柱状体に対して第3の柱状体及び第4の柱状体が平行に配置されている磁性体からなる下部コアと、
前記第1の柱状体に巻回された第1のコイル導体と前記第3の柱状体に巻回された第3のコイル導体の巻回方向が互いに異なるとともに、前記第1のコイル導体と前記第3のコイル導体が直列に接続されている第1のコイルと、
前記第2の柱状体に巻回された第2のコイル導体と前記第4の柱状体に巻回された第4のコイル導体の巻回方向が互いに異なるとともに、前記第2のコイル導体と前記第4のコイル導体が直列に接続されている第2のコイルと、
前記第1の柱状体と前記第2の柱状体の上部に接触された磁性体からなる第1の上部コアと、
前記第3の柱状体と前記第4の柱状体の上部に接触された磁性体からなる第2の上部コアと、を備え、
前記第1の上部コアと前記第2の上部コアとは、間隙が設けられて配置されており、また、前記第1のコイル導体の巻回方向と前記第2のコイル導体の巻回方向とが異なることを特徴とするデュアルモードチョークコイル。 - 平板上に、それぞれの軸が直立した4つの柱状体が四角形の四角に設置されているとともに、前記柱状体において、第1の柱状体及び第2の柱状体に対して第3の柱状体及び第4の柱状体が平行に配置されている磁性体からなる下部コアと、
前記第1の柱状体に巻回された第1のコイル導体と前記第3の柱状体に巻回された第3のコイル導体の巻回方向が互いに異なるとともに、前記第1のコイル導体と前記第3のコイル導体が並列に接続されている第1のコイルと、
前記第2の柱状体に巻回された第2のコイル導体と前記第4の柱状体に巻回された第4のコイル導体の巻回方向が互いに異なるとともに、前記第2のコイル導体と前記第4のコイル導体が並列に接続されている第2のコイルと、
前記第1の柱状体と前記第2の柱状体の上部に接触された磁性体からなる第1の上部コアと、
前記第3の柱状体と前記第4の柱状体の上部に接触された磁性体からなる第2の上部コアと、を備え、
前記第1の上部コアと前記第2の上部コアとは、間隙が設けられて配置されており、また、前記第1のコイル導体の巻回方向と前記第2のコイル導体の巻回方向とが異なることを特徴とするデュアルモードチョークコイル。 - 前記第1の柱状体と前記第3の柱状体及び前記第2の柱状体と前記第4の柱状体の間の前記下部コアの側面の一部に、前記間隙に対して平行方向に切込み部が設けられていることを特徴とする請求項1または請求項2に記載のデュアルモードチョークコイル。
- 前記第1の柱状体と前記第2の柱状体及び前記第3の柱状体と前記第4の柱状体の間の前記下部コアの側面の一部に、前記間隙に対して直交方向に切込み部が設けられていることを特徴とする請求項1または請求項2に記載のデュアルモードチョークコイル。
- 前記第1のコイルと前記第2のコイルとが同種のコイルからなり、前記第2のコイルと前記第1のコイルとが互いに反転された関係にあることを特徴とする請求項1、請求項3及び請求項4のいずれか1項に記載のデュアルモードチョークコイル。
- 前記第1の柱状体及び前記第2の柱状体と前記第1の上部コアとの間、並びに前記第3の柱状体及び前記第4の柱状体と前記第2の上部コアとの間に、磁性体粉末が含有された弾性体が配置されていることを特徴とする請求項1から5のいずれか1項に記載のデュアルモードチョークコイル。
- 前記第1の上部コア及び前記第2の上部コアに一体化した状態で、それぞれ2ケの筒状体が設けられており、前記筒状体の内部に前記第1の柱状体から前記第4の柱状体が嵌合されていることを特徴とする請求項1から6のいずれか1項に記載のデュアルモードチョークコイル。
- 請求項1から請求項7のいずれか1項に記載の前記デュアルモードチョークコイルを備え、前記第1のコイルと前記第2のコイルとの間に少なくとも1つのコンデンサが接続されていることを特徴とする高周波フィルタ。
- 請求項1から請求項7のいずれか1項に記載の前記デュアルモードチョークコイルを備え、接地端子が設けられているとともに、前記接地端子と前記第1のコイル及び前記第2のコイルとの間にそれぞれ少なくとも1つのコンデンサが接続されていることを特徴とする高周波フィルタ。
- 請求項1から請求項7のいずれか1項に記載の前記デュアルモードチョークコイルを直流電源からの入力部に備えたことを特徴とする車載用モータ一体型電動パワーステアリング。
- 請求項1から請求項7のいずれか1項に記載の前記デュアルモードチョークコイルを交流電源からの入力部に備えたことを特徴とする車載用充電装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15866270.0A EP3229245B1 (en) | 2014-12-03 | 2015-10-20 | Dual-mode choke coil and high-frequency filter using same, and on-board motor integrated electric power steering and on-board charging device |
CN201580058375.6A CN107077951B (zh) | 2014-12-03 | 2015-10-20 | 双模扼流圈、使用双模扼流圈的高频滤波器、车载用马达一体型电动助力转向系统及车载用充电装置 |
US15/518,398 US10366826B2 (en) | 2014-12-03 | 2015-10-20 | Dual-mode choke coil and high-frequency filter using same, and on-board motor integrated electric power steering and on-board charging device |
JP2016506922A JP6038385B2 (ja) | 2014-12-03 | 2015-10-20 | デュアルモードチョークコイル及びそれを用いた高周波フィルタ並びに車載用モータ一体型電動パワーステアリング及び車載用充電装置 |
EP18152611.2A EP3330981B1 (en) | 2014-12-03 | 2015-10-20 | Dual-mode choke coil and high-frequency filter using same, and on-board motor integrated electric power steering and on-board charging device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-244667 | 2014-12-03 | ||
JP2014244667 | 2014-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016088460A1 true WO2016088460A1 (ja) | 2016-06-09 |
Family
ID=56091416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/079504 WO2016088460A1 (ja) | 2014-12-03 | 2015-10-20 | デュアルモードチョークコイル及びそれを用いた高周波フィルタ並びに車載用モータ一体型電動パワーステアリング及び車載用充電装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10366826B2 (ja) |
EP (2) | EP3229245B1 (ja) |
JP (1) | JP6038385B2 (ja) |
CN (1) | CN107077951B (ja) |
WO (1) | WO2016088460A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019030219A (ja) * | 2017-08-03 | 2019-02-21 | デルタ エレクトロニクス インコーポレイティド | 電源変換装置 |
JP2019029677A (ja) * | 2017-08-03 | 2019-02-21 | デルタ エレクトロニクス インコーポレイティド | 磁性モジュールおよびそれを適用する電源変換装置 |
CN109415084A (zh) * | 2016-07-06 | 2019-03-01 | 三菱电机株式会社 | 电动助力转向装置 |
WO2020203354A1 (ja) * | 2019-03-29 | 2020-10-08 | パナソニックIpマネジメント株式会社 | リアクトル及び電力変換装置 |
JP7006299B2 (ja) | 2018-01-22 | 2022-01-24 | 日産自動車株式会社 | 電力変換装置 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201603209D0 (en) * | 2016-02-24 | 2016-04-06 | Cooper Technologies Co | PCB transformer |
CN105761880B (zh) * | 2016-04-20 | 2017-12-29 | 华为技术有限公司 | 一种薄膜电感和电源转换电路 |
CN114334399A (zh) * | 2016-08-19 | 2022-04-12 | 马克西姆综合产品公司 | 用于低电磁干扰的耦合感应器 |
JP6561953B2 (ja) * | 2016-09-21 | 2019-08-21 | 株式会社オートネットワーク技術研究所 | 磁性コア、及びリアクトル |
CN107769391B (zh) * | 2017-09-28 | 2021-05-28 | 深圳威兹新能源科技有限公司 | 一种多线圈串联的无线充电系统 |
JP6936693B2 (ja) | 2017-10-23 | 2021-09-22 | 株式会社Soken | 電力変換装置 |
JP6879253B2 (ja) * | 2018-03-30 | 2021-06-02 | 株式会社豊田自動織機 | 車載用電動圧縮機 |
DE102018112100A1 (de) * | 2018-05-18 | 2019-12-05 | Tdk Electronics Ag | Drossel mit hoher Gleichtaktinduktivität |
CN108777220B (zh) * | 2018-05-28 | 2022-01-21 | 台达电子工业股份有限公司 | 磁性元件及开关电源装置 |
JP2020009972A (ja) * | 2018-07-11 | 2020-01-16 | 株式会社東芝 | インダクタユニット、非接触給電システムおよび電動車両 |
JP7157640B2 (ja) | 2018-11-28 | 2022-10-20 | 株式会社Soken | 電力変換装置の制御装置 |
CN111292921B (zh) * | 2018-12-10 | 2021-08-27 | 中冶京诚工程技术有限公司 | 磁环抗干扰方法及装置 |
KR20200072606A (ko) * | 2018-12-12 | 2020-06-23 | 현대자동차주식회사 | 평면형 트랜스포머 |
EP3895284A4 (en) * | 2019-01-17 | 2022-07-27 | Johnson Electric International AG | EMI FILTER FOR DC MOTOR |
US11694832B2 (en) | 2019-02-01 | 2023-07-04 | Raytheon Company | High voltage high frequency transformer |
JP7161447B2 (ja) | 2019-06-24 | 2022-10-26 | 株式会社Soken | 電力変換装置 |
DE102019123457A1 (de) | 2019-09-02 | 2021-03-04 | Tdk Electronics Ag | Tiefpassfilter |
DE102019130709A1 (de) | 2019-11-14 | 2021-05-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vorrichtung zum Filtern mindestens eines Signals |
CN218386910U (zh) | 2019-11-25 | 2023-01-24 | 米沃奇电动工具公司 | 电池组充电系统 |
CN112104201A (zh) | 2020-02-27 | 2020-12-18 | 台达电子工业股份有限公司 | 磁性组件及其电源模块 |
CN111554471A (zh) | 2020-05-25 | 2020-08-18 | 台达电子企业管理(上海)有限公司 | 三相电感及功率模块 |
CN111554493B (zh) | 2020-05-25 | 2022-01-25 | 台达电子企业管理(上海)有限公司 | 三相变压器组件及功率模块 |
CN111726100A (zh) * | 2020-05-29 | 2020-09-29 | 华为技术有限公司 | 一种滤波电路以及车载电子设备 |
DE102021119911A1 (de) * | 2020-11-20 | 2022-05-25 | Yun-Kuang Fan | Induktive Hybridvorrichtung |
FR3116937A1 (fr) * | 2020-11-30 | 2022-06-03 | Valeo Systemes De Controle Moteur | Composant électronique comprenant un circuit magnétique, et une pluralité de conducteurs électriques |
JP7445900B2 (ja) * | 2021-03-17 | 2024-03-08 | Tmp株式会社 | チョークコイル |
US11728289B2 (en) * | 2021-05-26 | 2023-08-15 | Texas Instruments Incorporated | Integrated magnetic assembly with conductive field plates |
CN113421751B (zh) * | 2021-06-18 | 2023-03-07 | 台达电子企业管理(上海)有限公司 | 磁性组件及功率模块 |
EP4254443A1 (en) * | 2022-03-28 | 2023-10-04 | Schaffner EMV AG | Magnetic circuit, magnetic component and method for manufacturing a magnetic component |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5984827U (ja) * | 1982-11-30 | 1984-06-08 | 岩崎電気株式会社 | 放電灯用安定器 |
JP2001230120A (ja) * | 2000-02-18 | 2001-08-24 | Hitachi Ferrite Electronics Ltd | 四脚磁心及び該四脚磁心を用いたコモンモード、ノーマルモードを備えたハイブリッドチョークコイル |
JP2002299133A (ja) * | 2001-03-29 | 2002-10-11 | Tdk Corp | ラインフィルタ |
JP2006222387A (ja) * | 2005-02-14 | 2006-08-24 | Toshiba Corp | チョークコイル装置 |
JP2007235580A (ja) * | 2006-03-01 | 2007-09-13 | Toshiba Corp | ノイズフィルタ |
JP2008037380A (ja) * | 2006-08-10 | 2008-02-21 | Hitachi Ltd | 電動パワーステアリング用モータ駆動装置 |
JP2008172162A (ja) * | 2007-01-15 | 2008-07-24 | Denso Corp | 点火コイル用の軟磁性体 |
JP2011009985A (ja) * | 2009-06-25 | 2011-01-13 | Panasonic Corp | 車両用充電装置 |
JP2013501346A (ja) * | 2009-07-31 | 2013-01-10 | 株式会社タムラ製作所 | インダクタ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02229407A (ja) * | 1989-03-02 | 1990-09-12 | Nippon Telegr & Teleph Corp <Ntt> | チョークコイル |
JPH04103107A (ja) * | 1990-08-22 | 1992-04-06 | Murata Mfg Co Ltd | コモンモードチョークコイル |
US7259648B2 (en) * | 2002-12-13 | 2007-08-21 | Matsushita Electric Industrial Co., Ltd. | Multiple choke coil and electronic equipment using the same |
JP4735469B2 (ja) * | 2005-08-31 | 2011-07-27 | Tdk株式会社 | スイッチング電源装置 |
CN101521089A (zh) | 2008-11-19 | 2009-09-02 | 清流县鑫磁线圈制品有限公司 | 一种电感器件及其制做方法 |
US8791782B2 (en) * | 2011-01-28 | 2014-07-29 | Uses, Inc. | AC power conditioning circuit |
-
2015
- 2015-10-20 JP JP2016506922A patent/JP6038385B2/ja active Active
- 2015-10-20 CN CN201580058375.6A patent/CN107077951B/zh active Active
- 2015-10-20 EP EP15866270.0A patent/EP3229245B1/en active Active
- 2015-10-20 EP EP18152611.2A patent/EP3330981B1/en active Active
- 2015-10-20 WO PCT/JP2015/079504 patent/WO2016088460A1/ja active Application Filing
- 2015-10-20 US US15/518,398 patent/US10366826B2/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5984827U (ja) * | 1982-11-30 | 1984-06-08 | 岩崎電気株式会社 | 放電灯用安定器 |
JP2001230120A (ja) * | 2000-02-18 | 2001-08-24 | Hitachi Ferrite Electronics Ltd | 四脚磁心及び該四脚磁心を用いたコモンモード、ノーマルモードを備えたハイブリッドチョークコイル |
JP2002299133A (ja) * | 2001-03-29 | 2002-10-11 | Tdk Corp | ラインフィルタ |
JP2006222387A (ja) * | 2005-02-14 | 2006-08-24 | Toshiba Corp | チョークコイル装置 |
JP2007235580A (ja) * | 2006-03-01 | 2007-09-13 | Toshiba Corp | ノイズフィルタ |
JP2008037380A (ja) * | 2006-08-10 | 2008-02-21 | Hitachi Ltd | 電動パワーステアリング用モータ駆動装置 |
JP2008172162A (ja) * | 2007-01-15 | 2008-07-24 | Denso Corp | 点火コイル用の軟磁性体 |
JP2011009985A (ja) * | 2009-06-25 | 2011-01-13 | Panasonic Corp | 車両用充電装置 |
JP2013501346A (ja) * | 2009-07-31 | 2013-01-10 | 株式会社タムラ製作所 | インダクタ |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109415084A (zh) * | 2016-07-06 | 2019-03-01 | 三菱电机株式会社 | 电动助力转向装置 |
EP3483035A4 (en) * | 2016-07-06 | 2019-08-14 | Mitsubishi Electric Corporation | ELECTRIC POWER STEERING DEVICE |
US11108350B2 (en) | 2016-07-06 | 2021-08-31 | Mitsubishi Electric Corporation | Electric power steering apparatus |
JP2019030219A (ja) * | 2017-08-03 | 2019-02-21 | デルタ エレクトロニクス インコーポレイティド | 電源変換装置 |
JP2019029677A (ja) * | 2017-08-03 | 2019-02-21 | デルタ エレクトロニクス インコーポレイティド | 磁性モジュールおよびそれを適用する電源変換装置 |
CN109390118A (zh) * | 2017-08-03 | 2019-02-26 | 台达电子工业股份有限公司 | 磁性组件及其适用的电源转换装置 |
US10269484B2 (en) | 2017-08-03 | 2019-04-23 | Delta Electronics, Inc. | Magnetic component and power conversion device using the same |
TWI690952B (zh) * | 2017-08-03 | 2020-04-11 | 台達電子工業股份有限公司 | 磁性元件及其適用之電源轉換裝置 |
CN109390118B (zh) * | 2017-08-03 | 2021-06-11 | 台达电子工业股份有限公司 | 磁性组件及其适用的电源转换装置 |
JP7006299B2 (ja) | 2018-01-22 | 2022-01-24 | 日産自動車株式会社 | 電力変換装置 |
WO2020203354A1 (ja) * | 2019-03-29 | 2020-10-08 | パナソニックIpマネジメント株式会社 | リアクトル及び電力変換装置 |
Also Published As
Publication number | Publication date |
---|---|
EP3229245A4 (en) | 2018-08-29 |
CN107077951B (zh) | 2019-05-03 |
JPWO2016088460A1 (ja) | 2017-04-27 |
US10366826B2 (en) | 2019-07-30 |
EP3229245B1 (en) | 2019-10-02 |
EP3229245A1 (en) | 2017-10-11 |
CN107077951A (zh) | 2017-08-18 |
EP3330981A1 (en) | 2018-06-06 |
EP3330981B1 (en) | 2020-04-29 |
US20170309395A1 (en) | 2017-10-26 |
JP6038385B2 (ja) | 2016-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6038385B2 (ja) | デュアルモードチョークコイル及びそれを用いた高周波フィルタ並びに車載用モータ一体型電動パワーステアリング及び車載用充電装置 | |
CN109494974B (zh) | 用于抑制干扰信号的电磁兼容性滤波器 | |
US10381148B2 (en) | Transformer and power converter using the same | |
JP5327289B2 (ja) | 電力変換装置 | |
US9610847B2 (en) | Power conversion device | |
JP7152296B2 (ja) | 電力変換装置、及び高電圧ノイズフィルタ | |
JP5058120B2 (ja) | トランス | |
US20200119660A1 (en) | Power conversion apparatus | |
US20200120789A1 (en) | Power conversion apparatus | |
JP2020009972A (ja) | インダクタユニット、非接触給電システムおよび電動車両 | |
WO2021152888A1 (ja) | ノイズフィルタ、ノイズフィルタ装置、および電力変換装置 | |
US20200119655A1 (en) | Power supply apparatus | |
JP6780608B2 (ja) | コイルユニット | |
US10937591B2 (en) | Coil unit, wireless power transmission device, wireless power receiving device, and wireless power transmission system | |
JP5721772B2 (ja) | 電力変換装置 | |
JP2016165204A (ja) | 電力変換装置 | |
WO2021199404A1 (ja) | 車載充電器 | |
WO2023084999A1 (ja) | 電源装置 | |
JP2019004363A (ja) | Acフィルタ | |
JP2014056970A (ja) | リアクトル | |
US11398337B2 (en) | Automotive variable voltage converter with inductor having diagonal air gap | |
US20240138070A1 (en) | Circuit board having composite magnetic components mounted thereon | |
JP5705263B2 (ja) | スイッチング電源装置 | |
JP2011139090A (ja) | モールド変圧器 | |
JP2020129865A (ja) | 送電装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2016506922 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15866270 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15518398 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2015866270 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |