JP2006351654A - Reactor device - Google Patents

Reactor device Download PDF

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Publication number
JP2006351654A
JP2006351654A JP2005173246A JP2005173246A JP2006351654A JP 2006351654 A JP2006351654 A JP 2006351654A JP 2005173246 A JP2005173246 A JP 2005173246A JP 2005173246 A JP2005173246 A JP 2005173246A JP 2006351654 A JP2006351654 A JP 2006351654A
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JP
Japan
Prior art keywords
reactor
bottom surface
case
core
support means
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.)
Pending
Application number
JP2005173246A
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Japanese (ja)
Inventor
Hiroyuki Imanishi
Hajime Kawaguchi
Toru Maeda
Toru Shimizu
Haruhisa Toyoda
Shinichiro Yamamoto
啓之 今西
前田  徹
伸一郎 山本
肇 川口
亨 清水
晴久 豊田
Original Assignee
Sumitomo Electric Ind Ltd
住友電気工業株式会社
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
Application filed by Sumitomo Electric Ind Ltd, 住友電気工業株式会社 filed Critical Sumitomo Electric Ind Ltd
Priority to JP2005173246A priority Critical patent/JP2006351654A/en
Publication of JP2006351654A publication Critical patent/JP2006351654A/en
Application status is Pending legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • Y02T10/6204Hybrid vehicles using ICE and mechanical energy storage, e.g. flywheel

Abstract

<P>PROBLEM TO BE SOLVED: To suppress noises caused by vibration transmitted from a core to a case. <P>SOLUTION: This device is provided with a reactor 10 having the core 12 and a coil 14, and the case 20 having a bottom surface 22 for receiving a load due to the gravity of the reactor 10. A coil spring 30 is interposed between the reactor 10 and the bottom surface 22, and the coil spring 30 supports the reactor 10 on the bottom surface 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for preventing noise generated in a reactor device.

  The reactor is composed of a core and a coil, and is usually used in a form accommodated in a case. Generally, a reactor used in a vehicle such as a fuel cell vehicle or a hybrid vehicle is used for a large current and a high voltage value, and therefore tends to generate a large noise.

  The cause of vibration that causes noise generation is due to electromagnetic attraction acting between one end of the gap side of the core and the gap member and the other end of the gap side of the core, and due to magnetostriction of the reactor core itself. Can be mentioned.

  And it turned out that the following two can be considered as a generation | occurrence | production aspect of the noise by such a vibration. One is a case where noise is generated by the vibration of the core itself in the case. The other is a case where the vibration of the core is transmitted to the case and noise is generated by the vibration of the case.

  As a noise countermeasure for the former noise generation mode, for example, there is a technique for suppressing vibration of the reactor in the case by fixing a leaf spring between the side surface of the reactor and the inner side surface of the case.

  However, since the conventional reactor is accommodated so as to be placed in the case, the lower part of the reactor and the inner bottom surface of the case are in direct contact. As a countermeasure against vibration of the core itself, the lower part of the reactor and the inner bottom surface of the case are also in direct contact with each other, even in a configuration in which a leaf spring is interposed between the side surface of the reactor and the inner side surface of the case. ing.

  Thus, the conventional reactor has a configuration in which the vibration generated in the core is directly transmitted to the case, and no countermeasure has been taken for noise generated due to the vibration transmitted from the core to the case.

  Accordingly, an object of the present invention is to suppress noise generated due to vibration transmitted from the core to the case.

  In order to solve the above-mentioned problem, the present invention is provided between a reactor having a core and a coil, a case having a bottom surface that receives a load due to gravity of the reactor, and between the reactor and the bottom surface, And elastic support means for supporting the reactor.

  In this case, the elastic support means is disposed in a coil spring disposed in an elastic manner between the reactor and the bottom surface, or in an elastically deformable posture between the reactor and the bottom surface. A flat leaf spring may be used.

  Moreover, it is preferable that a groove for positioning the elastic support means is formed on the bottom surface.

  Furthermore, it is preferable that a plurality of the elastic support means are provided.

  The elastic support means may be formed of a metal material.

  According to the reactor device of the present invention, the reactor device includes: a case having a bottom surface that receives a load due to gravity of the reactor; and an elastic support unit that is interposed between the reactor and the bottom surface and supports the reactor on the bottom surface. Therefore, the vibration of the core is absorbed by the elastic support means and is not easily transmitted to the case. For this reason, it is possible to suppress noise generated due to vibration transmitted from the core to the case.

  In addition, when the elastic support means is a coil spring disposed in a posture that can expand and contract between the reactor and the bottom surface, vibrations in both vertical and horizontal directions can be effectively absorbed.

  Further, if the elastic support means is a leaf spring disposed in an elastically deformable posture between the reactor and the bottom surface, vertical vibrations that are considered to be a main factor of noise generated from the case Can be absorbed effectively.

  Moreover, if the groove | channel for positioning the said elastic support means is formed in the said bottom face, an elastic support means can be kept at a fixed position.

  Moreover, when the said elastic support means is provided with two or more, a reactor will be supported by multiple places and a reactor can be supported stably.

  Further, when the elastic support means is formed of a metal material, heat generated in the reactor can be transmitted to the case side relatively quickly via the elastic support means, and heat can be efficiently radiated.

  Hereinafter, the reactor apparatus which concerns on embodiment is demonstrated. 1 is a partially sectional side view showing a reactor device, FIG. 2 is a perspective view showing a case bottom surface and a coil spring of the reactor device, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. FIG. In FIG. 2 to FIG. 4, side portions of the case are omitted for convenience of explanation.

  This reactor device is used, for example, in a power supply system (in particular, a boost converter) for driving a hybrid vehicle or a fuel cell vehicle, and includes a reactor 10, a case 20, and a coil spring 30 as an elastic support means. ing.

  The reactor 10 includes a core 12 and a coil 14 and is a kind of toroidal coil. The core 12 is formed in a substantially annular shape (more specifically, a substantially square annular shape) from a magnetic material. A coil 14 is formed by winding a coated conductive wire such as a rectangular wire around the core 12. Here, the coil 14 is partially formed with respect to the core 12, and more specifically, the coil 14 is formed on two opposing side portions of the core 12.

  The case 20 is a member for housing the reactor 10 and has a bottom surface 22 for receiving the load of the reactor 10.

  More specifically, the case 20 is formed in a substantially bowl-like shape with one surface of a substantially rectangular parallelepiped shape opened, and a surface facing the opening is a bottom surface 22.

  The bottom surface 22 has a partial concave surface 23. That is, the reactor 10 is accommodated in the case 20 in a posture in which the central axis of the substantially annular core 12 is substantially perpendicular to the bottom surface 22. In this state, the opening is closed by the lid portion 28. In this accommodation form, a concave surface 23 is formed by forming a portion corresponding to the coil 14 of the bottom surface 22 into a concave shape, and the other portion is formed on a support surface 24 that supports the core 12 in a mounting shape. ing. In FIG. 1 to FIG. 4, a concave surface 23 is formed at a substantially intermediate portion of the bottom surface 22 in the width direction, and a pair of support surfaces 24 are formed at positions sandwiching the concave surface 23. Here, each support surface 24 of the bottom surface 22 receives and supports the gravity load of the reactor 10 via the coil spring 30. Each support surface 24 is formed with a substantially annular positioning groove 25 into which one end of the coil spring 30 can be fitted as a groove for positioning the coil spring 30.

  The coil spring 30 is a means for interposing between the reactor 10 and the bottom surface 22 and supporting the reactor 10 on the bottom surface 22.

  More specifically, the coil spring 30 is disposed in such a manner that one end portion thereof is fitted in the positioning groove 25 and is extendable in a substantially vertical direction (that is, a substantially vertical direction) with respect to the bottom surface 22. In a state where the reactor 10 is disposed in the case 20, the coil spring 30 is interposed between the support surface 24 and the core 12 in a state where the coil spring 30 is compressed by receiving a gravity load from the reactor 10.

  The coil spring 30 is made of a metal material. Thereby, the heat generated in the reactor 10 is efficiently transmitted to the bottom surface 22 via the coil spring 30.

  In addition, a plurality of coil springs 30 (here, two at positions sandwiching the concave surface 23) are provided. As a result, the reactor 10 is stably supported at a plurality of locations on the bottom surface 22 by the plurality of coil springs 30.

  According to the reactor device configured as described above, the case 20 having the bottom surface 22 that receives the gravity load of the reactor 10, and the coil spring that is interposed between the reactor 10 and the bottom surface 22 and supports the reactor 10 on the bottom surface 22. 30, the vibration of the core 12 generated in the case 20 is absorbed by the elasticity of the coil spring 30 and hardly transmitted to the case 20. For this reason, it is possible to effectively suppress noise generated due to vibration transmitted from the core 12 to the case 20.

  As such elastic support means, in addition to the coil spring 30, members having various elasticity such as a leaf spring 130 described later and an elastic sheet such as a rubber plate can be used.

  However, as a means for absorbing vibration, the coil spring 30 disposed in a retractable posture between the reactor 10 and the bottom surface 22 is used, so that the vibration of the core 12 is in a direction substantially perpendicular to the bottom surface 22. The vibration (hereinafter, vertical vibration) is absorbed by the elasticity of the coil spring 30 in the expansion / contraction direction, and the vibration of the core 12 in the direction substantially parallel to the bottom surface 22 (hereinafter, horizontal vibration) is the elasticity of the coil spring 30 in the swinging direction. Is absorbed by. For this reason, vibrations in both the vertical and horizontal directions of the coil can be effectively absorbed.

  In addition, since a plurality of coil springs 30 are provided, the reactor 10 is supported at a plurality of locations on the bottom surface 22, and the reactor 10 can be stably supported.

  Furthermore, since the coil spring 30 is formed of a metal material, the heat generated in the reactor 10 can be transmitted to the bottom surface 22 side relatively quickly via the coil spring 30, and the case 20 and further the case from the bottom surface 22. Efficient heat dissipation can be performed via a heat sink attached to the heat sink 20 or the like.

{Modification}
FIG. 5 is a perspective view showing a case bottom surface and a leaf spring of a reactor device according to a modification, and FIG. 6 is a sectional view taken along line VI-VI in FIG. For convenience of explanation, in these drawings, side portions of the case are omitted for convenience of explanation.

  In this modification, a plate spring 130 is used as the elastic support means instead of the coil spring 30 in the above embodiment.

  The leaf spring 130 is disposed in an elastically deformable posture between the reactor 10 and the bottom surface 122 (component corresponding to the bottom surface 22). More specifically, the leaf spring 130 is formed in a shape obtained by bending a substantially rectangular plate material into a substantially arc shape. In the leaf spring 130, both end portions of the leaf spring 130 are brought into contact with a support surface 124 (component corresponding to the support surface 24), and the inner peripheral surface of the leaf spring 130 is opposed to the support surface 124 of the bottom surface 122. It is disposed on each support surface 124 in a posture. Each support surface 124 is formed with a pair of elongated positioning grooves 125 for receiving both ends of the leaf spring 130 and positioning the leaf spring 130. Each leaf spring 130 is disposed on each support surface 124 in a state of being fitted in the determination groove 125.

  In a state where the reactor 10 is disposed in the case 120 (a component corresponding to the case 20), the substantially intermediate portion of the outer peripheral surface of the leaf spring 130 is in contact with the core 12, and the reactor 10 is in this contact position. The leaf spring 130 is interposed between the support surface 124 and the core 12 in a state where the leaf spring 130 is bent and deformed due to the gravitational load.

  The leaf springs 130 are formed of a metal material as in the above-described embodiment, and a plurality of (here, two at the positions sandwiching the concave surface 23) are provided.

  Even in the reactor device according to this modification, the vibration of the core 12 generated in the case 120 is absorbed by the elasticity of the leaf spring 130 and is not easily transmitted to the case 120. For this reason, the noise generated due to the vibration transmitted from the core 12 to the case 120 can be effectively suppressed.

  In particular, it is considered that the main factor of noise generated from the case 120 is vertical vibration transmitted from the core 12. In this modification, the leaf spring 130 is elastically deformed in the vertical direction. Can be absorbed effectively.

It is a partial cross section side view which shows the reactor apparatus which concerns on embodiment. It is a perspective view which shows the case bottom face and coil spring of a reactor apparatus. It is the III-III sectional view taken on the line in FIG. It is a perspective view which shows a case bottom face. It is a perspective view which shows the case bottom face and leaf | plate spring of the reactor apparatus which concerns on a modification. It is the VI-VI sectional view taken on the line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Reactor 12 Core 14 Coil 20 Case 22 Bottom surface 23 Concave surface 24 Support surface 30 Coil spring 130 Leaf spring

Claims (6)

  1. A reactor having a core and a coil;
    A case having a bottom surface that receives a load due to gravity of the reactor;
    Elastic support means for interposing between the reactor and the bottom surface and supporting the reactor on the bottom surface;
    Reactor device with
  2. The reactor device according to claim 1,
    The said elastic support means is a reactor apparatus which is a coil spring arrange | positioned with the attitude | position which can be expanded-contracted between the said reactor and the said bottom face.
  3. The reactor device according to claim 1,
    The reactor device is a reactor device, wherein the elastic support means is a leaf spring disposed in an elastically deformable posture between the reactor and the bottom surface.
  4. The reactor device according to any one of claims 1 to 3,
    A reactor device in which a groove for positioning the elastic support means is formed on the bottom surface.
  5. The reactor device according to any one of claims 1 to 4,
    A reactor device provided with a plurality of the elastic support means.
  6. A reactor device according to any one of claims 1 to 5,
    The said elastic support means is a reactor apparatus currently formed with the metal material.
JP2005173246A 2005-06-14 2005-06-14 Reactor device Pending JP2006351654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005173246A JP2006351654A (en) 2005-06-14 2005-06-14 Reactor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005173246A JP2006351654A (en) 2005-06-14 2005-06-14 Reactor device

Publications (1)

Publication Number Publication Date
JP2006351654A true JP2006351654A (en) 2006-12-28

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Family Applications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006351674A (en) * 2005-06-14 2006-12-28 Sumitomo Electric Ind Ltd Reactor device
JP2009032994A (en) * 2007-07-28 2009-02-12 Sumitomo Electric Ind Ltd Reactor device
JP2011096934A (en) * 2009-10-30 2011-05-12 Tamura Seisakusho Co Ltd Inductor
JP2011181804A (en) * 2010-03-03 2011-09-15 Denso Corp Reactor device and power converter
WO2014045868A1 (en) * 2012-09-24 2014-03-27 住友電気工業株式会社 Reactor, converter, power conversion device, and method for manufacturing reactor
JP5532129B2 (en) * 2010-12-27 2014-06-25 トヨタ自動車株式会社 Reactor device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006351674A (en) * 2005-06-14 2006-12-28 Sumitomo Electric Ind Ltd Reactor device
JP4591225B2 (en) * 2005-06-14 2010-12-01 住友電気工業株式会社 Reactor device
JP2009032994A (en) * 2007-07-28 2009-02-12 Sumitomo Electric Ind Ltd Reactor device
JP2011096934A (en) * 2009-10-30 2011-05-12 Tamura Seisakusho Co Ltd Inductor
JP2011181804A (en) * 2010-03-03 2011-09-15 Denso Corp Reactor device and power converter
JP5532129B2 (en) * 2010-12-27 2014-06-25 トヨタ自動車株式会社 Reactor device
US9159483B2 (en) 2010-12-27 2015-10-13 Toyota Jidosha Kabushiki Kaisha Reactor device
WO2014045868A1 (en) * 2012-09-24 2014-03-27 住友電気工業株式会社 Reactor, converter, power conversion device, and method for manufacturing reactor

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