WO2009125593A1 - Dispositif réacteur - Google Patents

Dispositif réacteur Download PDF

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Publication number
WO2009125593A1
WO2009125593A1 PCT/JP2009/001644 JP2009001644W WO2009125593A1 WO 2009125593 A1 WO2009125593 A1 WO 2009125593A1 JP 2009001644 W JP2009001644 W JP 2009001644W WO 2009125593 A1 WO2009125593 A1 WO 2009125593A1
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WO
WIPO (PCT)
Prior art keywords
coil
reactor
metal case
case
coils
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2009/001644
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English (en)
Japanese (ja)
Inventor
阿部徹
濱欠裕貴
菊池慶子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008100761A external-priority patent/JP2011124242A/ja
Priority claimed from JP2008209529A external-priority patent/JP2011124245A/ja
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of WO2009125593A1 publication Critical patent/WO2009125593A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles

Definitions

  • the present invention relates to a reactor device used in a power supply circuit.
  • the present invention relates to a reactor device suitable for use in vehicles such as hybrid vehicles or power conditioners such as solar power generation systems.
  • Patent Document 1 Japanese Patent Laid-Open No. 5-291046
  • Patent Document 1 shows a reactor formed such that a coil provided with an insulation coating is enclosed by a mixture of an Fe-based magnetic powder and an epoxy resin.
  • the characteristics of the reactor obtained using a mixture of resin and resin mixed at a ratio of 4/6 to 1/9 with respect to the volume of the magnetic powder alone as the mixture of magnetic powder and resin have an allowable current with respect to the inductance value. It is doubled compared to the conventional one. Furthermore, by using the Fe-based magnetic powder as the magnetic powder, miniaturization has been achieved compared to conventional products.
  • the hybrid vehicle described above has a large output electric motor, and a power supply circuit for driving the motor is required to have a reactor device that can withstand a large current. Since there is a strong demand for miniaturization of such reactor devices, it is conceivable to achieve miniaturization by the method of Patent Document 1 described above.
  • Patent Document 2 discloses a coil-sealed resin-molded reactor, in which a mixture of Fe powder and resin is poured in after resin molding of two flat wire coils. It is described that a reactor can be obtained. And since this coil sealing type resin molding reactor is molded using a mixture of Fe powder and resin without using ferrite, it is possible to reduce the manufacturing cost while suppressing the deterioration and loss of the magnetic characteristics. Have been described.
  • a coil-sealed resin-molded reactor having a structure in which a mixture of magnetic powder and resin is molded to surround a coil is difficult to obtain a high magnetic powder space factor. For this reason, the relative permeability is low, and the eddy current loss generated in the coil tends to be large due to the leakage flux passing through the coil winding in the radial direction.
  • the case or coil which is a metal material conducts heat well, but the mixture of the magnetic powder and the resin is inferior in thermal conductivity. Since the coil-sealed resin molding reactor has a large eddy current loss generated in the coil, the heat generated there is contained by the mixture of magnetic powder and resin in close contact with the coil, making it difficult to conduct well to the metal case There is a problem that the heat dissipation of the reactor is not good.
  • an object of the present invention is a reactor device having a configuration in which the leakage flux to the metal case is small, and the resin molding in which the leakage flux entering the inside of the wire of the coil is reduced to suppress the eddy current loss generated in the coil. It is to provide a reactor device of Another object of the present invention is, in addition to the above-mentioned advantages, to provide a heat dissipating reactor apparatus in which heat is efficiently conducted to a metal case.
  • a reactor device concerning the 1st invention is a reactor device using a mixture containing a metal case, a coil part arranged in the metal case concerned, and magnetic powder and resin.
  • the coil section has two coils magnetically coupled, and is disposed adjacent to the bottom or side of the case via an insulating sheet having high thermal conductivity.
  • a reactor device comprises a metal case, two coils using a flat wire arranged in the metal case, and a mixture containing a magnetic powder and a resin filled in the metal case.
  • the two coils are arranged substantially in parallel and magnetically coupled, and the coils are further connected between the rectangular wires by 0.3 mm to 2 mm.
  • a gap of .5 mm is formed, and the mixture is filled in the gap.
  • the coil is preferably a reactor device whose axial direction is disposed parallel to the bottom surface of the case.
  • between the flat electric wires refers to between the adjacent flat electric wires in the coil axial direction.
  • the coil is a flat electric wire wound so that the outer shape of the axial cross section is rectangular, and at least two side surfaces of the coil are in contact with the heat conductive sheet adhered to the inner surface of the metal case. Is preferred.
  • the side surface of the coil is disposed in contact with both the bottom and the side surface of the metal case.
  • the gap between the flat wires is larger at the end side than at the center of the coil.
  • the inductance L is 200 to 450 ⁇ H when the DC superimposed current is zero amp (0 A), and high reactor characteristics can be obtained.
  • the two coils to be used are disposed to be in contact with the inner wall surface of the metal case to form an inner iron type reactor, whereby the leakage flux is greater than that of the conventional coil sealing type resin molded reactor apparatus. Can be reduced as much as possible.
  • the mixture of magnetic powder and resin is also filled in the gap between the flat electric wires, the magnetic flux is concentrated on the magnetic powder and the penetration of the magnetic flux into the inside of the electric wire can be impeded. The current loss can be reduced. Further, even if the amount of heat generated by the coil and the magnetic powder is large, the heat is efficiently conducted to the metal case.
  • the gap between the flat wires is 0.3 mm or more, the filling of the magnetic powder is easy and the sufficient amount of the magnetic powder is filled, so the magnetic flux inside the wire even in the high operating magnetic flux density region Can block the entry of Moreover, if the space
  • the two coils wound with the flat wire are wound in a rectangular shape and at least two of the side surfaces are in contact with the inner wall surface of the metal case via the high thermal conductivity sheet, they are generated by the coils Heat is efficiently conducted to the metal case through the mixture between the coils. As a result, the heat dissipation during reactor operation is improved.
  • the reactor size and loss are designed in a well-balanced manner, and the inductance L is 200 at DC superimposed current of 0 A
  • the present invention is particularly useful as a vehicle reactor or power conditioner reactor device because it exhibits a value in the range of 450 ⁇ H.
  • FIG. 18 is a schematic view showing the result of analysis of case loss occurring on the bottom surface of the metal case when the reactor device of Example 3-1 is operated. It is the schematic which shows the result of having analyzed the case loss which generate
  • FIG. 1 is a perspective view showing an example of a reactor device of the present invention.
  • the shape of the aluminum metal case 10 differs depending on the application of the reactor device and the like.
  • the reactor body is cooled by water-cooling a part of the case or by coupling it to a water-cooled cooling device (not shown).
  • the high thermal conductive sheet 11 having an insulating property is attached to the inner surface of the aluminum alloy case 10.
  • the high thermal conductivity sheet 11 is attached only to the side surface, but may be attached to both the bottom surface and the side surface.
  • the high thermal conductive sheet 11 for example, a flexible silicon sheet manufactured by Denki Kagaku Kogyo Co., Ltd., or a graphite sheet to which insulating property is added manufactured by Matsushita Electric Industrial Co., Ltd. can be used.
  • the thickness of the high thermal conductivity sheet 11 is preferably from 0.1 mm to 3 mm in consideration of the heat dissipation and the installation space.
  • the high thermal conductive sheet 11 is attached to the coil portion 12 (with an insulation coating) in which the first coil 21a and the second coil 21b shown in FIG. 3 are magnetically coupled and the ends are connected. Install in contact with the surface.
  • the insulating spacer 13 is disposed between the two coils.
  • the mixture 14 of magnetic powder and resin is poured into the aluminum alloy case 10. At this time, since the mixture 14 is filled up to the gap between the flat electric wires of the coil portion 12, the coil portion 12 is more firmly fixed and held.
  • FIG. 1 shows a state in which the mixture 14 is solidified and the reactor device of the present invention is completed.
  • no pressure is required since the mixture is poured by gravity when filling the mixture.
  • the filling rate may be increased by applying air pressure or the like, or bubbles may be removed from the inside of the mixture or between the windings of the coil under reduced pressure.
  • the mixture does not necessarily have to immerse the entire coil, and even if a portion of the upper surface of the coil is visible, it can withstand practical use.
  • FIG. 4A and 4B are respectively a cross-sectional view taken along the line AA and a cross-sectional view taken along the line BB of the reactor apparatus shown in FIG.
  • Arrows shown in FIG. 4A schematically show the flow direction of the magnetic flux when a current is supplied to the coil portion 12.
  • the magnetic flux passes through the inner diameter portion of the coil and flows back.
  • the magnetic flux from one side passes through the mixture 14 filled between the end of the coil 12 and the metal case 10, and flows back through the mixture filled in the inner diameter of the other coil.
  • magnetic powder for example, pure Fe powder, Fe-Si alloy powder, Fe-Al alloy powder, Fe-Si-Al alloy powder, Fe-Ni alloy powder, Fe-Co alloy powder, amorphous soft magnetic powder, nano Crystalline soft magnetic powder can be used. Moreover, these magnetic powders may be used alone, or may be used as a combined powder as appropriate.
  • the magnetic powder may be a spherical powder produced by atomization, or a powder obtained by pulverizing a band-like magnetic thin strip may be used.
  • a spherical magnetic powder is preferable to increase the filling rate, but if it has a uniform particle size, a gap is easily formed between the magnetic powder, it is preferable to use a powder mixture with a fine powder that fills the gap. .
  • a nonmagnetic filler when added to a composite of magnetic powder and resin, high relative permeability can be obtained even in a high magnetic field. Therefore, according to the specification of a product, a nonmagnetic filler can be added suitably and a magnetic characteristic can be adjusted suitably.
  • the nonmagnetic filler ceramic powders such as silica, alumina, magnesia and the like, quartz glass powder and the like can be used.
  • the resin has a role of covering the surface of the magnetic powder described above to insulate the powders from each other. It is preferable to insulate so as to provide a sufficiently large electrical resistance so as to suppress the generation of an eddy current with respect to AC magnetization of the entire magnetic core.
  • the resin also functions as a binder for binding these magnetic powders.
  • resin various resin, such as an epoxy resin, a polyamide resin, a polyimide resin, a polyester resin, a silicone resin, can be used, for example. These resins may be used alone or in combination as appropriate.
  • the coil portion 12 is preferably disposed adjacent to the bottom and the pair of side surfaces of the case via a thermally conductive sheet having an insulating property. Since the bottom portion and the side surface of the coil portion 12 are in thermal contact with the metal case 10 (or the heat conductive sheet 11), the copper loss heat of the coil portion 12 is efficiently dissipated to the outside of the reactor.
  • the heat conductive sheet 11 preferably has a heat conductivity of 0.5 W / (m ⁇ K) or more.
  • the insulating film of the coil portion 12 does not peel off by sliding with the case, and the aging of the reactor characteristics occurs Can be suppressed.
  • a rectangular copper wire is wound in a rectangular shape, and the outer peripheral side surface of the coil is flat. Therefore, the area adjacent to the case (heat conductive sheet) is large, and the cooling performance is high.
  • the rectangular copper wire is preferably wound so that the thin thickness direction is parallel to the axial direction of the coil. For example, as shown in FIG. 3 and FIG. 6, a coil in which a flat wire is vertically wound is preferable.
  • the reactor apparatus of the present invention adopting such a structure has high reliability. It is particularly useful to use such a reactor device for on-vehicle use and power conditioners.
  • Example 1 In the reactor apparatus of the present embodiment, an aluminum metal case 10 having a width of 86 mm, a length of 123 to 206 mm, and a height of 53 mm was used as a housing.
  • the thickness of the metal case 10 is 3 mm.
  • a high thermal conductivity sheet 11 On the inner surface of the metal case 10, a high thermal conductivity sheet 11 with a thickness of 1 mm is attached.
  • the high thermal conductivity sheet 11 is a flexible silicon sheet manufactured by Denki Kagaku Kogyo Co., Ltd.
  • the coil portion 12 is disposed inside the metal case 10 described above.
  • the coil unit 12 is configured by magnetically connecting two coils 21a and 21b in parallel.
  • Each of the coils 21a and 21b is formed by winding a rectangular copper wire (width 6 mm, thickness 1.6 mm) in a rectangular shape, and is 38 turns wide 36 mm, length 72.2 to 155.8 mm, height 48 mm Is a coil of Therefore, the total number of turns of the coil section 12 is 76.
  • the intervals in the thickness direction of the rectangular copper wire in the coil portion 12 are 0.3 mm (Example 1-1), 0.6 mm (Example 1-2), 1.0 mm (1.0 mm).
  • Example 1-3 1.5 mm (Example 1-4), 2.0 mm (Example 1-5), 2.5 mm (Example 1-6).
  • the coil portion 12 was placed at the center of the aluminum metal case 10 and in such a manner that the outer peripheral surface (only the side surface) of the coil portion 12 was in contact with the high thermal conductivity sheet 11. Further, an insulating member (insulating spacer) 13 is provided between the two coils 21a and 21b in order to improve voltage resistance between the coils.
  • the mixture 14 was poured into an aluminum metal case 10 in which the coil portion 12 was installed, and poured so that the upper surface thereof was flush with the upper surface of the coil portion 12. Thereafter, the entire metal case 10 was heated to 120 ° C. and tapped to fill the space between the copper wires of the rectangular copper wire with the mixture 14. After this filling, it was kept at 120 ° C. for 2 hours to cure the resin.
  • the inductance of the reactor thus produced was measured using an LCR meter.
  • the measurement conditions are a frequency of 10 kHz, a voltage of 0.5 Vrms, and a DC superimposed current of 0 A.
  • the obtained results are shown in Table 1.
  • this reactor device was mounted as an inductor of a boost type DC-DC converter with a driving frequency of 10 kHz, and was driven at an input voltage of 200 V, a DC superimposed current of 20 A, and a frequency of 10 kHz. And under this condition, the reactor loss at the time of reactor operation was examined.
  • Example 1 An aluminum metal case having the same shape as that of Example 1 (1-1 to 1-6) was used except that the length dimension of the case was changed to 119 to 225 mm. Further, as in the first embodiment, the high thermal conductivity sheet is attached to the inner surface of the metal case.
  • a coil portion is disposed inside the metal case.
  • the coil unit is configured by magnetically coupling two coils in parallel.
  • Each of these coils is a rectangular winding of a rectangular copper wire (width 6 mm, thickness 1.6 mm) and is a 38-turn coil having a width of 36 mm and a height of 48 mm. Therefore, the total number of turns of the coil portion is 76.
  • the coil of Comparative Example 1-1 has a length of 68.4 mm (a gap of 0.2 mm between rectangular copper wires), and the coil of Comparative Example 1-2 has a length of 174.8 mm (a gap of 3.0 mm). The coil part of the kind was produced.
  • Example 1 As in Example 1, this coil portion was placed at the center of the metal case made of aluminum so that the outer peripheral surface (only the side surface) of the coil portion was in contact with the high thermal conductivity sheet. And the same mixture 14 as Example 1 was prepared, and it carried out similarly to Example 1, and produced the reactor apparatus.
  • Comparative Example 1-1 and Comparative Example 1-2 the mixture 14 was filled in the gaps between the rectangular copper wires, and in Comparative Example 1-3, the gaps between the copper wires were filled with only the resin.
  • the electromagnetic field analysis was performed about each of the reactor apparatus of the Example of this invention, and the reactor apparatus of a comparative example.
  • FIG. 7 shows calculated results (flux distribution calculation value) of the magnetic flux entering the inside of the rectangular copper wire constituting the coil using the reactor devices of Example 1-2 of the present invention and Comparative Example 1-3 as models.
  • FIG. 7 shows calculated results (flux distribution calculation value) of the magnetic flux entering the inside of the rectangular copper wire constituting the coil using the reactor devices of Example 1-2 of the present invention and Comparative Example 1-3 as models.
  • FIG. 8 shows the DC bias characteristics of the reactor device of Example 1-2.
  • FIG. 1 is schematic views of a conventional reactor device manufactured as Comparative Example 2.
  • the metal case, the coil, and the high thermal conductivity sheet are the same as in Example 1-2, and a powder compact is used for the magnetic core.
  • the cross-sectional area of the core leg 16 disposed inside the coil is 20.5 mm ⁇ 32 mm, and the magnetic core leg 16 is provided with a magnetic gap 15.
  • the width of the magnetic gap 15 is 1.1 mm each, for a total of 8 locations. did.
  • a magnetic gap 15 (width: 1.1 mm) was also provided between the core leg 16 and the core joint 17.
  • the core joining portion 17 is a block having a width of 60 mm in the longitudinal direction and a height of 32 mm.
  • the core joining portion 17 is not in a rectangular parallelepiped shape, and a projecting portion is formed toward the inside of the coil.
  • Table 2 shows the results of measurement of DC copper loss, AC copper loss, core loss, and coil linkage flux loss for each of the reactor device of Example 1-2 and the reactor device of Comparative Example 2 of the above-described configuration. Also, these losses were summed to obtain the sum of losses.
  • the reactor apparatus of the embodiment 1-2 of the present invention has a smaller total sum of losses compared to the reactor apparatus 2 of the comparative example 2, and high reactor performance is obtained.
  • Example 2 As Example 2, the reactor apparatus of the present invention was manufactured in the same manner as Example 1 except that the metal case made of aluminum and the coil shape were changed. The same metal case, heat conductive sheet, insulating spacer, and mixture of magnetic powder and resin as used in Example 1 are used.
  • the coil is the same as in Example 1; the flat copper wire having a width of 6 mm and a thickness of 1.6 mm is 36 mm wide and long
  • Two 38-turn coils were prepared to be 91.2 mm in length and 48 mm in height, and were connected in parallel to form 76 turns.
  • the gap between the rectangular copper wires at the center of each coil is 0.6 mm, and the gap between the rectangular copper wires at the end of the coil is 1.0 mm.
  • flat rectangular copper wire was wound in the shape of a rectangle so that the interval might spread gradually toward the end from a central part.
  • the inductance measurement by the LCR meter was performed under the same conditions (frequency 10 kHz, voltage 0.5 Vrms, superimposed DC current 0 A) as the reactor apparatus using this coil as described in the first embodiment.
  • the reactor loss of the reactor system of the second embodiment is 31 W, which is much lower than that of the reactor system of the embodiment 1-2 shown in Table 1 (the gap of the flat copper wire is uniformly 0.6 mm). is there.
  • the loss of the reactor device of Example 2 is substantially the same value as that of the reactor device of Example 1-3 (with the gap of the flat copper wire being uniformly 1.0 mm). This fact means that the leakage magnetic flux can be efficiently reduced by widening the gap of the flat copper wire on the end side, and the entire length of the coil can be shortened, so that miniaturization can be achieved.
  • Example 3 In Example 3, it was investigated how the heat dissipation of the reactor changed when the mixture 14 was filled and when it was not filled between the rectangular copper wires. Also in the present example, a reactor was manufactured in the same procedure as in Example 1.
  • Example 3 6 parts by weight of magnesia powder having an average particle diameter of 0.2 ⁇ m and an epoxy resin were added to Fe-6.5% Si powder having an average particle diameter of 60 ⁇ m and a tap density of 5.0 g / cm 3. 10 parts by weight was added to obtain a mixture 14 comprising magnetic powder, insulating oxide powder and resin. The magnetic powder space factor of this mixture 14 is 63%. Then, the mixture 14 was poured into an aluminum metal case 10 in which the coil portion 12 is installed, and poured so that the upper surface thereof was flush with the upper surface of the coil portion 12. Apart from this, the metal case, the heat conductive sheet and the insulating spacer used are the same as in the first embodiment.
  • the distance between flat rectangular copper wires of the coil is 0.4 mm (Example 3-1), 0.8 mm (Example 3-2), 1.2 mm (Example 3-3), 1.6 mm (Example 3)
  • the reactor of this example was manufactured by changing -4) and 2.0 mm (Example 3-4).
  • the gap between the rectangular copper wires is filled with a resin to substantially make the magnetic permeability 1, and the same reactor as described above (comparative examples 3-1 to 3) is other than that. -5) was produced.
  • reactors are mounted as an inductor of a boost type DC-DC converter with a driving frequency of 10 kHz, driven at an input voltage of 200 V, a DC superimposed current of 20 A, and a frequency of 10 kHz, to obtain a voltage of 500 V as a converter output.
  • the temperature difference between the inside of the reactor and the surface of the reactor during operation was investigated.
  • the temperature difference between the inside of the reactor and the surface of the case 10 made of aluminum is smaller than that in the comparative example. This is because the magnetic powder filled in the thickness direction of the rectangular copper wire efficiently conducted the heat generated by the coil of the reactor and the magnetic powder to the aluminum case. Moreover, since equivalent heat dissipation is obtained by copper wire intervals narrower than a comparative example, it turns out that it is suitable for miniaturization of a reactor.
  • heat dissipation is further improved by changing the axial cross-sectional shape of a coil, and increasing the contact area of a coil side surface and a heat conductive sheet.
  • a reactor satisfying the required heat dissipation can be obtained.
  • the coil shape also affects reactor performance such as superposition characteristics, it is necessary to design appropriately to satisfy the required value required.
  • Example 4 a reactor apparatus of the present invention was manufactured in which the axis of the coil was disposed perpendicular to the bottom of the case.
  • FIG. 10 is a perspective view showing the metal case used in the present example, and a metal case 10 made of aluminum having a width of 86 mm, a length of 136 mm and a height of 44 to 81 mm was used for the reactor device of the present example.
  • the thickness of this case is 3 mm.
  • the metal case has a 1 mm thick high thermal conductivity sheet attached to the inner surface.
  • This high thermal conductivity sheet is a flexible silicon sheet manufactured by Denki Kagaku Kogyo Co., Ltd.
  • FIG. 6 is a perspective view showing the shape of the coil portion 12 disposed inside the above-mentioned metal case, and this coil portion 12 is a rectangular copper wire having a width of 6 mm and a thickness of 1.2 mm and wound in a rectangular shape.
  • Two 17-turn coils 22a and 22b wound so as to have a width of 50 mm, a length of 26 to 63 mm, and a height of 78 mm were connected in parallel to form 34 turns.
  • the distance in the thickness direction of the rectangular copper wire in the coil portion 12 is a value shown in Table 4 as Examples 4-1 to 4-5.
  • the coil portion 12 is disposed at the center of a metal case made of aluminum and in such a manner that the outer peripheral surface of the coil portion 12 contacts the high thermal conductivity sheet.
  • an insulating spacer 13 is provided between the coils 22a and 22b in order to improve the voltage resistance between the two coils.
  • the mixture 14 consisting of the same magnetic powder, insulating oxide powder and resin as in Example 3 is poured into the metal case 10 in which the coil is disposed. The top of the mixture was flush with the top of the metal case.
  • the entire aluminum case is heated to 120 ° C. and tapped to fill the gaps between the copper wires of the rectangular copper wire with the mixture of the magnetic powder and the resin. After this filling, the resin is held at 120 ° C. for 2 hours, and the resin is cured to form a reactor device.
  • FIG. 11 is a schematic view of a reactor device obtained by the above-described procedure.
  • 12A and 12B are schematic views of a CC cross section and a DD cross section of the reactor device shown in FIG. 11, respectively.
  • This reactor apparatus was mounted as an inductor of a boost type DC-DC converter with a driving frequency of 10 kHz. Driving was performed at an input voltage of 200 V, a DC superimposed current of 20 A, and a frequency of 10 kHz, and a voltage of 500 V was obtained as a converter output. And the temperature difference between the inside of the reactor and the surface of the reactor at the time of reactor operation under this condition was examined. The results are shown in Table 4.
  • the reactor between the rectangular copper wires was filled with resin, and the reactor powder (Comparative Examples 4-1 to 4-5) in which the magnetic powder was not filled between the rectangular copper wires was also manufactured. It evaluated similarly.
  • FIG. 13 is a diagram showing the results of measuring the DC bias characteristics of the reactor devices of Example 3-1 and Example 4-1 under the conditions of a frequency of 10 kHz and a signal voltage of 0.5 Vrms.
  • Example 5 In Example 5, the reactor device of Example 3-1 in which the axis of the coil was parallel to the bottom surface of the metal case was compared with the reactor device of Example 4-1 in which the axis of the coil was perpendicular to the bottom surface of the metal case . In the said comparison, when metal case 10 was made into the same dimension and direct current resistance of coil part 12 was made into the same conditions, analysis evaluated which reactor loss was large by analysis.
  • FIG. 14A and 14B are schematic views of analysis results of reactor loss. These figures are the result of measuring the case loss at the time of operating a reactor apparatus, and FIG. 14A shows the case loss which generate
  • the reactor apparatus of Example 3-1 remains in partial loss although the case loss is large between the ends of the coil.
  • the case loss is still large between the ends of the coil, and in addition to that, a portion with a large case loss appears so as to cross the bottom of the case.
  • Table 5 summarizes the results of measurement of DC copper loss, AC copper loss, core loss, coil linkage flux loss, and case loss of the reactor devices of Example 3-1 and Example 4-1.
  • the sum of DC copper loss, AC copper loss, core loss, and coil linkage flux loss is smaller in the reactor apparatus of Example 3-1 than in the reactor apparatus of Example 4-1. Also, the case loss is smaller in the reactor apparatus of Example 3-1. Furthermore, in the sum of all losses, the reactor apparatus of Example 3-1 in which the coil is disposed in parallel to the bottom of the case is 30% or more smaller than the reactor apparatus of Example 4-1.
  • the loss is smaller in the reactor device in which the axis of the coil is parallel to the bottom of the case.
  • the present invention is a reactor device having a configuration in which the leakage flux itself to the metal case is small, and the leakage flux entering the wire of the coil is reduced to reduce the eddy current loss generated in the coil. It is possible to provide a suppressed resin molded reactor device. Further, according to the present invention, in addition to the above advantages, it is possible to provide a highly heat dissipating reactor device in which heat is efficiently conducted to the metal case.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

Une feuille de transfert de chaleur élevée (11) possédant des caractéristiques d’isolation adhère à une surface intérieure d’un boîtier métallique (10). Une section de bobines (12) est constituée d’une première bobine (21a) et d’une seconde bobine (21b), munies d’un câble rectangulaire, qui sont couplées magnétiquement et reliées par leurs parties d’extrémité. La section de bobines est en contact avec la surface à laquelle adhère ladite feuille de transfert de chaleur élevée (11). Une entretoise isolante (13) est placée entre les deux bobines. Un mélange (14) de matière poudreuse magnétique et de résine est appliqué à l’intérieur du boîtier métallique (10). Les deux bobines (21a, 21b) sont pratiquement parallèles et couplées magnétiquement, et dans ces bobines, les câbles rectangulaires sont séparés par un interstice de 0,3 à 2,5 mm, qui est rempli avec le mélange susmentionné.
PCT/JP2009/001644 2008-04-08 2009-04-08 Dispositif réacteur Ceased WO2009125593A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2008100761A JP2011124242A (ja) 2008-04-08 2008-04-08 リアクトル装置
JP2008-100761 2008-04-08
JP2008209529A JP2011124245A (ja) 2008-08-18 2008-08-18 リアクトル装置
JP2008-209529 2008-08-18

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011199257A (ja) * 2010-02-25 2011-10-06 Sumitomo Electric Ind Ltd リアクトルの製造方法
JP2011199265A (ja) * 2010-02-25 2011-10-06 Sumitomo Electric Ind Ltd リアクトルおよびリアクトルの製造方法
JP2011238775A (ja) * 2010-05-11 2011-11-24 Denso Corp リアクトル、及び、リアクトルの製造方法
WO2012008328A1 (fr) * 2010-07-13 2012-01-19 住友電気工業株式会社 Réacteur
JP2012119617A (ja) * 2010-12-03 2012-06-21 Mitsubishi Electric Corp リアクトル
JP2012119454A (ja) * 2010-11-30 2012-06-21 Sumitomo Electric Ind Ltd リアクトル
WO2012108398A1 (fr) * 2011-02-08 2012-08-16 三洋電機株式会社 Conditionneur d'énergie
JP2012165597A (ja) * 2011-02-08 2012-08-30 Sanyo Electric Co Ltd パワーコンディショナ
JP2012164878A (ja) * 2011-02-08 2012-08-30 Sanyo Electric Co Ltd パワーコンディショナ
WO2012147644A1 (fr) * 2011-04-28 2012-11-01 住友電気工業株式会社 Réacteur, matériau composite, cœur de réacteur, convertisseur et dispositif de conversion de l'énergie
WO2012164998A1 (fr) * 2011-05-31 2012-12-06 住友電気工業株式会社 Réacteur, convertisseur, appareil de conversion de puissance, procédé de fabrication de réacteur
WO2013005573A1 (fr) * 2011-07-04 2013-01-10 住友電気工業株式会社 Réactance, convertisseur et dispositif de conversion électrique
JP2013012664A (ja) * 2011-06-30 2013-01-17 Tamura Seisakusho Co Ltd コイル装置及びコイル
JP2014192359A (ja) * 2013-03-27 2014-10-06 Toyota Motor Corp リアクトル
CN107799282A (zh) * 2017-11-01 2018-03-13 深圳市英大科特技术有限公司 一种散热高频变压器、电抗器和电力电子装置
WO2019235368A1 (fr) * 2018-06-05 2019-12-12 株式会社オートネットワーク技術研究所 Réacteur

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Cited By (32)

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JP2011199257A (ja) * 2010-02-25 2011-10-06 Sumitomo Electric Ind Ltd リアクトルの製造方法
JP2011199265A (ja) * 2010-02-25 2011-10-06 Sumitomo Electric Ind Ltd リアクトルおよびリアクトルの製造方法
US8830022B2 (en) 2010-02-25 2014-09-09 Sumitomo Electric Industries, Ltd. Reactor and method for manufacturing reactor
CN102782783A (zh) * 2010-02-25 2012-11-14 住友电气工业株式会社 电抗器和制造电抗器的方法
JP2011238775A (ja) * 2010-05-11 2011-11-24 Denso Corp リアクトル、及び、リアクトルの製造方法
WO2012008328A1 (fr) * 2010-07-13 2012-01-19 住友電気工業株式会社 Réacteur
JP2012039099A (ja) * 2010-07-13 2012-02-23 Sumitomo Electric Ind Ltd リアクトル
DE112011102342T5 (de) 2010-07-13 2013-04-18 Sumitomo Electric Industries, Ltd. Drossel
CN102985987A (zh) * 2010-07-13 2013-03-20 住友电气工业株式会社 电抗器
US8754739B2 (en) 2010-07-13 2014-06-17 Sumitomo Electric Industries, Ltd. Reactor
JP2012119454A (ja) * 2010-11-30 2012-06-21 Sumitomo Electric Ind Ltd リアクトル
JP2012119617A (ja) * 2010-12-03 2012-06-21 Mitsubishi Electric Corp リアクトル
JP2012164878A (ja) * 2011-02-08 2012-08-30 Sanyo Electric Co Ltd パワーコンディショナ
JP2012165597A (ja) * 2011-02-08 2012-08-30 Sanyo Electric Co Ltd パワーコンディショナ
WO2012108398A1 (fr) * 2011-02-08 2012-08-16 三洋電機株式会社 Conditionneur d'énergie
CN103534770B (zh) * 2011-04-28 2016-02-17 住友电气工业株式会社 电抗器、复合材料、电抗器芯体、变换器、以及功率变换装置
WO2012147644A1 (fr) * 2011-04-28 2012-11-01 住友電気工業株式会社 Réacteur, matériau composite, cœur de réacteur, convertisseur et dispositif de conversion de l'énergie
JP2012238836A (ja) * 2011-04-28 2012-12-06 Sumitomo Electric Ind Ltd リアクトル、複合材料、リアクトル用コア、コンバータ、及び電力変換装置
CN103534770A (zh) * 2011-04-28 2014-01-22 住友电气工业株式会社 电抗器、复合材料、电抗器芯体、变换器、以及功率变换装置
US9343219B2 (en) 2011-05-31 2016-05-17 Sumitomo Electric Industries, Ltd. Reactor, converter, power converter apparatus, and method for manufacturing reactor
WO2012164998A1 (fr) * 2011-05-31 2012-12-06 住友電気工業株式会社 Réacteur, convertisseur, appareil de conversion de puissance, procédé de fabrication de réacteur
JP2013012701A (ja) * 2011-05-31 2013-01-17 Sumitomo Electric Ind Ltd リアクトル、コンバータ、電力変換装置、及びリアクトルの製造方法
JP2013012664A (ja) * 2011-06-30 2013-01-17 Tamura Seisakusho Co Ltd コイル装置及びコイル
JP2013033928A (ja) * 2011-07-04 2013-02-14 Sumitomo Electric Ind Ltd リアクトル、コンバータ、及び電力変換装置
WO2013005573A1 (fr) * 2011-07-04 2013-01-10 住友電気工業株式会社 Réactance, convertisseur et dispositif de conversion électrique
JP2014192359A (ja) * 2013-03-27 2014-10-06 Toyota Motor Corp リアクトル
CN107799282A (zh) * 2017-11-01 2018-03-13 深圳市英大科特技术有限公司 一种散热高频变压器、电抗器和电力电子装置
WO2019235368A1 (fr) * 2018-06-05 2019-12-12 株式会社オートネットワーク技術研究所 Réacteur
CN112204686A (zh) * 2018-06-05 2021-01-08 株式会社自动网络技术研究所 电抗器
JPWO2019235368A1 (ja) * 2018-06-05 2021-03-11 株式会社オートネットワーク技術研究所 リアクトル
JP7072788B2 (ja) 2018-06-05 2022-05-23 株式会社オートネットワーク技術研究所 リアクトル
US12119167B2 (en) 2018-06-05 2024-10-15 Autonetworks Technologies, Ltd. Reactor

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