JPH0983176A - Electronic apparatus - Google Patents
Electronic apparatusInfo
- Publication number
- JPH0983176A JPH0983176A JP7239643A JP23964395A JPH0983176A JP H0983176 A JPH0983176 A JP H0983176A JP 7239643 A JP7239643 A JP 7239643A JP 23964395 A JP23964395 A JP 23964395A JP H0983176 A JPH0983176 A JP H0983176A
- Authority
- JP
- Japan
- Prior art keywords
- ferrite core
- frames
- metal member
- lead wire
- electronic device
- 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
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は電子機器に関し、特
に従来のものよりも部品数が少なく且つ組立工数が少な
い改善された構造を持つ電子機器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device, and more particularly to an electronic device having an improved structure in which the number of parts is smaller and the number of assembling steps is smaller than those of the conventional ones.
【0002】[0002]
【従来の技術】電子機器に内蔵された回路から発生する
高調波ノイズが周囲環境に電磁障害(Electro
Magnetic Interference。以下に
はEMIと略記する。)を引き起こすことが社会問題と
して注目されて以来、先進各国では電子機器によるEM
Iを防止するための法規制が設けられ、それ以後に新た
に製造される電子機器には規格をクリアしなければなら
ない。2. Description of the Related Art Harmonic noise generated from a circuit incorporated in an electronic device causes electromagnetic interference (electromagnetic interference) in the surrounding environment.
Magnetic Interference. Below, it is abbreviated as EMI. ) Has attracted attention as a social problem, and in developed countries, EM using electronic devices
Laws and regulations to prevent I have to be established, and electronic devices newly manufactured after that must meet the standards.
【0003】ノイズフィルタもしくはEMIフィルタと
して電子機器に装着される電子部品には種々のものがあ
り、フェライトビーズやフェライトコアも主として回路
のノイズフィルタとして多用されているインダクタンス
素子である。There are various types of electronic components mounted on electronic equipment as noise filters or EMI filters, and ferrite beads and ferrite cores are also inductance elements which are mainly used as noise filters for circuits.
【0004】図3は従来の電子機器における要部構造と
該要部構造においてノイズフィルタとしてのフェライト
コアの使用形態の一例を示したものである。FIG. 3 shows an example of a main structure of a conventional electronic device and a usage pattern of a ferrite core as a noise filter in the main structure.
【0005】図3において、1及び2は金属製の板状部
材から成る電子機器のフレーム、3はリード線8を挿通
するための孔(不図示)が貫設されていて該孔にリード
線8が挿通されている円板形のフェライトコア(もしく
はフェライトビーズ)、9及び10はリード線8の両端
にそれぞれ圧着もしくはハンダ付けされるとともに金属
製ビス6及び7でフレーム1及び2にそれぞれ圧接され
た端子板、である。In FIG. 3, reference numerals 1 and 2 denote a frame of an electronic device made of a metal plate-like member, and 3 a hole (not shown) for inserting the lead wire 8 therethrough is provided through the lead wire. A disk-shaped ferrite core (or ferrite bead) in which 8 is inserted, 9 and 10 are crimped or soldered to both ends of the lead wire 8 respectively, and metal screws 6 and 7 are pressed to the frames 1 and 2 respectively. The terminal board is
【0006】[0006]
【発明が解決しようとする課題】図3に示した従来の電
子機器の構造においては次のような欠点があった。The structure of the conventional electronic device shown in FIG. 3 has the following drawbacks.
【0007】 フレーム1及び2が互いに完全に重な
り合う状態に配置されるべきものである場合には、ビス
6及び7の配置位置をフレーム1及び2の最も端の位置
に設定しないとリード線8の長さが非常に長くなってし
まい、その結果、リード線8のインダクタンスの増加や
信号遅延等の悪影響が生じるばかりでなく、リード線8
がフレーム上に存在するためフレーム1及び2の表面の
有効利用面積が少なくなってしまう。When the frames 1 and 2 are to be arranged so as to completely overlap with each other, the positions of the screws 6 and 7 should be set to the extreme positions of the frames 1 and 2 to prevent the lead wire 8 from moving. The length becomes very long, and as a result, not only adverse effects such as an increase in inductance of the lead wire 8 and signal delay occur, but also the lead wire 8
Exists on the frame, the effective use area of the surfaces of the frames 1 and 2 is reduced.
【0008】 フェライトコア3を固定するための場
所をフレーム上に設けなければならないのでフレームが
大型化し、電子機器の大型化を招く。また、電子機器の
振動等によってフェライトコアの破損を生じないように
するためにフェライトコアの保持部材を設ける必要があ
るので、該保持部材のための製造コストや取り付けコス
トを必要とする。 図3の構造を形成する場合には多くの作業工数を必
要とする。すなわち、フェライトコア3の中心孔にリー
ド線8を挿通し、リード線8の両端を端子板9及び10
に圧着もしくはハンダ付けし、該端子板9及び10をフ
レーム1及び2の所定位置に位置決めしてからビス6及
び7を該端子板9及び10を通してフレーム1及び2に
ねじ込み、フェライトコア3を保持部材を介してフレー
ムに取りつける、という合計6工程以上の作業を必要と
する。Since a place for fixing the ferrite core 3 must be provided on the frame, the size of the frame becomes large and the electronic device becomes large. Further, since it is necessary to provide a holding member for the ferrite core in order to prevent the ferrite core from being damaged by vibration of the electronic device, manufacturing cost and mounting cost for the holding member are required. When forming the structure of FIG. 3, many man-hours are required. That is, the lead wire 8 is inserted through the center hole of the ferrite core 3, and both ends of the lead wire 8 are connected to the terminal plates 9 and 10.
After fixing the terminal plates 9 and 10 to predetermined positions of the frames 1 and 2, screw them into the frames 1 and 2 through the terminal plates 9 and 10 to hold the ferrite core 3 It requires a total of 6 or more steps of attaching to the frame via members.
【0009】 リード線8、2枚の端子板、2本のビ
ス、フェライトコアの保持部材、等の部品を要するの
で、必要部品数が多いため製造コストが高い。Since the lead wire 8, two terminal plates, two screws, a holding member for the ferrite core, and the like are required, the number of necessary parts is large and the manufacturing cost is high.
【0010】[0010]
【発明の目的】請求項1に示した本発明の目的は、前述
した従来構造の電子機器よりも必要部品数や組立工数が
少なくて済み、安価なコストで製造できる改善された構
造の電子機器を提供することである。It is an object of the present invention as set forth in claim 1 that the required number of parts and the number of assembling steps are smaller than those of the electronic device having the above-mentioned conventional structure, and the electronic device has an improved structure which can be manufactured at a low cost. Is to provide.
【0011】請求項2に示した本発明の目的は、請求項
1の発明の目的とともにフェライトコアの破損を生じる
恐れのない構造を持つ電子機器を提供することである。An object of the present invention set forth in claim 2 is to provide an electronic device having a structure in which the ferrite core is not likely to be damaged, in addition to the object of the present invention set forth in claim 1.
【0012】[0012]
【課題を解決するための手段】前記目的を達成するため
に請求項1の発明は、「第一の金属部材と、該第一の金
属部材に対して所定の間隔をおいて配置されるとともに
該第一の金属部材に電気的に接続されるべき第二の金属
部材と、該第一の金属部材と該第二の金属部材とを所定
間隔をおいて互いに結合する導電性の結合部材と、該第
一の金属部材と該第二の金属部材との間の位置で該結合
部材を包囲するように配置されたフェライトコアと、を
有して成る電子機器」を提供する。In order to achieve the above-mentioned object, the invention of claim 1 relates to "a first metal member and a first metal member which are arranged at a predetermined distance from each other. A second metal member to be electrically connected to the first metal member, and a conductive coupling member that couples the first metal member and the second metal member to each other with a predetermined gap therebetween. , And a ferrite core arranged so as to surround the coupling member at a position between the first metal member and the second metal member.
【0013】本発明によれば、該結合部材をリード線の
代わりに該第一及び第二の金属部材の電気的接続手段と
して用いるとともに、該結合部材を包囲するようにフェ
ライトコアを配置したので、従来の電子機器よりも部品
数及び組立工数の少ない電子機器が提供される。According to the present invention, the connecting member is used as an electrical connecting means for the first and second metal members instead of the lead wire, and the ferrite core is arranged so as to surround the connecting member. An electronic device having a smaller number of parts and a smaller number of assembly steps than the conventional electronic device is provided.
【0014】前記目的を達成するために請求項2の発明
は、「請求項1の構成を有する電子機器において、該結
合部材と該フェライトコアとの間には該第一の金属部材
と該第二の金属部材との相互間隔を保持するための絶縁
材製スペーサが配置されていることを特徴とする電子機
器」を提供する。In order to achieve the above-mentioned object, the invention of claim 2 provides, "In an electronic device having the structure of claim 1, the first metal member and the first metal member are provided between the coupling member and the ferrite core. An electronic device, characterized in that spacers made of an insulating material for maintaining a mutual space between the two metal members are arranged.
【0015】本発明によれば、該絶縁材製スペーサが該
第一及び第二の金属部材間に配置されたことにより該フ
ェライトコアに過大な外力が作用することを防止でき、
従って請求項1の発明と同じ効果を有するとともに該フ
ェライトコアを破損する恐れのない電子機器が提供され
る。According to the present invention, the spacer made of an insulating material is disposed between the first and second metal members, whereby it is possible to prevent an excessive external force from acting on the ferrite core.
Therefore, there is provided an electronic device which has the same effect as that of the invention of claim 1 and which does not damage the ferrite core.
【0016】[0016]
【発明の実施の形態】以下に図1及び図2を参照して本
発明の実施の形態について説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.
【0017】<実施の形態1>図1に本発明の第一の実
施の形態の電子機器の要部構造の断面図を示す。<Embodiment 1> FIG. 1 is a sectional view of a main structure of an electronic apparatus according to a first embodiment of the present invention.
【0018】同図において、11及び12は本実施の形
態の電子機器のフレーム、13はノイズフィルタとして
のフェライトコア、14はフレーム11及び12にねじ
込まれて両フレームを互いに機械的に結合するとともに
電気的に接続している金属製のビス、である。本実施の
形態では、ビス14が図3の従来構造におけるリード線
8の代わりに電気的接続導体として使用されているので
リード線8が不要になるとともに従来構造における端子
板9及び10も不要となった。また、ビス14を両フレ
ーム11及び12にねじ込むだけで両フレームの相互結
合及び電気的接続並びにフェライトコア13の取り付け
の3種の作業が終わるので、従来の電子機器の組立作業
よりも組立工数を著しく減らすことができる。In the figure, 11 and 12 are frames of the electronic equipment of the present embodiment, 13 is a ferrite core as a noise filter, 14 is screwed into the frames 11 and 12, and both frames are mechanically coupled to each other. It is a metal screw, which is electrically connected. In the present embodiment, the screw 14 is used as an electrical connection conductor instead of the lead wire 8 in the conventional structure of FIG. 3, so that the lead wire 8 is unnecessary and the terminal plates 9 and 10 in the conventional structure are also unnecessary. became. Further, since the three types of work of mutual coupling and electrical connection of both frames and attachment of the ferrite core 13 are completed simply by screwing the screws 14 into the both frames 11 and 12, the number of assembling steps is higher than that of the assembling work of the conventional electronic equipment. It can be significantly reduced.
【0019】なお、図1の構造においては、フェライト
コア13は2枚のフレーム11及び12により挟みつけ
られている。In the structure of FIG. 1, the ferrite core 13 is sandwiched between the two frames 11 and 12.
【0020】<実施の形態2>図2に本発明の第二の実
施の形態を示す。本実施の形態は第一の実施の形態の一
部変形実施の形態であり、本実施の形態では両フレーム
11及び12の間に絶縁材製のスペーサ15が配置され
ている点のみが第一の実施の形態の構造と異なってい
る。従って、図2において図1と同じ符号で表示された
構成要素は実施の形態1で説明した構成要素と同じもの
であるから、この同じ構成要素についての説明を省略す
る。<Second Embodiment> FIG. 2 shows a second embodiment of the present invention. The present embodiment is a partially modified embodiment of the first embodiment, and in the present embodiment, the first point is that spacers 15 made of an insulating material are arranged between both frames 11 and 12. The structure is different from that of the above embodiment. Therefore, in FIG. 2, the components indicated by the same reference numerals as those in FIG. 1 are the same as the components described in the first embodiment, and therefore the description of the same components will be omitted.
【0021】スペーサ15はフェライトコア13よりも
長い軸方向長さを有しており、また、ビス14のねじ部
を包囲する筒状部と、該筒状部の一端側においてフェラ
イトコア13の端面を覆うように配置されたフランジ部
と、を有している。The spacer 15 has a length in the axial direction longer than that of the ferrite core 13. Further, the spacer 15 surrounds the threaded portion of the screw 14, and the end surface of the ferrite core 13 at one end of the tubular portion. And a flange portion arranged so as to cover the.
【0022】該筒状部の外径はフェライトコア13の内
径よりも小さいため、スペーサ15の筒状部はフェライ
トコア13の中心孔の中に挿入されている。また、スペ
ーサ15の軸方向長さはフェライトコア13の軸方向長
さよりも長いので、ビス14をねじ込んでも両フレーム
11及び12の圧力はスペーサ15のみに作用し、フェ
ライトコア13には両フレームから軸方向圧力がかから
ない。Since the outer diameter of the tubular portion is smaller than the inner diameter of the ferrite core 13, the tubular portion of the spacer 15 is inserted into the central hole of the ferrite core 13. Further, since the axial length of the spacer 15 is longer than the axial length of the ferrite core 13, even if the screw 14 is screwed in, the pressure of both the frames 11 and 12 acts only on the spacer 15, and the ferrite core 13 receives the force from both frames. No axial pressure is applied.
【0023】すなわち、本実施の形態の構造では、フェ
ライトコア13には外力が作用しないので図1の構造に
くらべてフェライトコア13の破損を生じる危険性がな
い。That is, in the structure of this embodiment, since no external force acts on the ferrite core 13, there is no risk of damage to the ferrite core 13 as compared with the structure of FIG.
【0024】[0024]
【発明の効果】請求項1の発明によれば、該結合部材を
リード線の代わりに該第一及び第二の金属部材の電気的
接続手段として用いるとともに、該結合部材を包囲する
ようにフェライトコアを配置したので、従来の電子機器
よりも部品数及び組立工数の少ない電子機器が提供され
る。According to the first aspect of the present invention, the connecting member is used as an electrical connecting means for the first and second metal members instead of the lead wire, and ferrite is used so as to surround the connecting member. Since the core is arranged, an electronic device having a smaller number of parts and fewer assembly steps than the conventional electronic device is provided.
【0025】請求項2の発明によれば、該絶縁材製スペ
ーサが該第一及び第二の金属部材間に配置されたことに
より該フェライトコアに過大な外力が作用することを防
止でき、従って請求項1の発明と同じ効果を有するとと
もに該フェライトコアを破損する恐れのない電子機器が
提供される。According to the second aspect of the present invention, since the spacer made of the insulating material is arranged between the first and second metal members, it is possible to prevent an excessive external force from being applied to the ferrite core. There is provided an electronic device which has the same effect as that of the invention of claim 1 and which does not damage the ferrite core.
【図1】本発明の第一実施の形態の電子機器の要部構造
を示す断面図。FIG. 1 is a sectional view showing a main structure of an electronic device according to a first embodiment of the present invention.
【図2】本発明の第二実施の形態の電子機器の要部構造
を示す断面図。FIG. 2 is a sectional view showing a main part structure of an electronic device according to a second embodiment of the invention.
【図3】従来の電子機器の要部構造を示す断面図。FIG. 3 is a cross-sectional view showing a main part structure of a conventional electronic device.
1、2、11、12:フレーム 3、13:フェライト
コア 6、7、14:ビス 8:リード線 9、10:端子板
15:スペーサ1, 2, 11, 12: Frame 3, 13: Ferrite core 6, 7, 14: Screw 8: Lead wire 9, 10: Terminal board 15: Spacer
Claims (2)
対して所定の間隔をおいて配置されるとともに該第一の
金属部材に電気的に接続されるべき第二の金属部材と、
該第一の金属部材と該第二の金属部材とを所定間隔をお
いて互いに結合する導電性の結合部材と、該第一の金属
部材と該第二の金属部材との間の位置で該結合部材を包
囲するように配置されたフェライトコアと、を有して成
る電子機器。1. A first metal member and a second metal member which is arranged at a predetermined distance from the first metal member and which is to be electrically connected to the first metal member. When,
A conductive coupling member that couples the first metal member and the second metal member to each other at a predetermined distance, and the conductive coupling member at a position between the first metal member and the second metal member. An electronic device comprising: a ferrite core arranged so as to surround the coupling member.
は該第一の金属部材と該第二の金属部材との相互間隔を
保持するための絶縁材製スペーサが配置されていること
を特徴とする請求項1の電子機器。2. A spacer made of an insulating material is arranged between the coupling member and the ferrite core for maintaining a mutual distance between the first metal member and the second metal member. The electronic device according to claim 1, which is characterized in that.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7239643A JPH0983176A (en) | 1995-09-19 | 1995-09-19 | Electronic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7239643A JPH0983176A (en) | 1995-09-19 | 1995-09-19 | Electronic apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0983176A true JPH0983176A (en) | 1997-03-28 |
Family
ID=17047769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7239643A Pending JPH0983176A (en) | 1995-09-19 | 1995-09-19 | Electronic apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0983176A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009123786A (en) * | 2007-11-12 | 2009-06-04 | Kitagawa Ind Co Ltd | Contact member |
JP2018056395A (en) * | 2016-09-29 | 2018-04-05 | 富士ゼロックス株式会社 | Electronic device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0384995A (en) * | 1989-08-29 | 1991-04-10 | Mitsubishi Electric Corp | Device for mounting electric circuit |
-
1995
- 1995-09-19 JP JP7239643A patent/JPH0983176A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0384995A (en) * | 1989-08-29 | 1991-04-10 | Mitsubishi Electric Corp | Device for mounting electric circuit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009123786A (en) * | 2007-11-12 | 2009-06-04 | Kitagawa Ind Co Ltd | Contact member |
JP2018056395A (en) * | 2016-09-29 | 2018-04-05 | 富士ゼロックス株式会社 | Electronic device |
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