JPH0328557Y2 - - Google Patents
Info
- Publication number
- JPH0328557Y2 JPH0328557Y2 JP1986060696U JP6069686U JPH0328557Y2 JP H0328557 Y2 JPH0328557 Y2 JP H0328557Y2 JP 1986060696 U JP1986060696 U JP 1986060696U JP 6069686 U JP6069686 U JP 6069686U JP H0328557 Y2 JPH0328557 Y2 JP H0328557Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- noise
- noise prevention
- present
- power cord
- 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.)
- Expired
Links
Landscapes
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
- Coils Or Transformers For Communication (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Insulating Bodies (AREA)
- Filters And Equalizers (AREA)
Description
【考案の詳細な説明】
（産業状の利用分野）
本考案は、各種電気機器の電源コードの導出孔
に配置されるブツシユに関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a bush that is placed in a power cord outlet hole of various electrical devices.
（従来の技術）
従来の電気機器の電源コードの導出孔に配置さ
れるブツシユは、一般に樹脂製のものが使用され
ていた。(Prior Art) A bush disposed in a power cord outlet hole of a conventional electric device is generally made of resin.
（考案が解決しようとする問題点）
従来、電気機器において電源ラインを通してノ
イズが侵入したり、漏洩したりする事を防止する
手段としては、ノイズフイルタ等のフイルタユニ
ツト又はチヨークコイル等を用いていた。このフ
イルタユニツトは、高価であり、機器のコストア
ツプにつながつていた。また、従来のフイルタユ
ニツトは高周波（数100MHz程度）での減衰量が
大きくなく、高周波のみのノイズ対策が必要な機
器の場合フイルタユニツトの装着は、効果が少な
く、コストが高いといつた問題点があつた。(Problems to be Solved by the Invention) Conventionally, a filter unit such as a noise filter or a choke coil has been used as a means for preventing noise from entering or leaking through a power supply line in electrical equipment. This filter unit is expensive and increases the cost of the equipment. In addition, conventional filter units do not have a large amount of attenuation at high frequencies (several 100 MHz), and for devices that require noise countermeasures only for high frequencies, installing a filter unit has the problem of being ineffective and expensive. It was hot.
また、フイルタユニツト及びチヨークコイル
は、機器内の基板上に配置されるため、電源コー
ドの機器への出入口から基板までの間でノイズが
侵入又は漏洩することがあつた。 Furthermore, since the filter unit and the choke coil are arranged on a board inside the device, noise may intrude or leak between the power cord entrance to the device and the board.
本考案は、上記の問題点を解決し、安価で簡便
に高周波ノイズの侵入、漏洩を防止できる雑音防
止ブツシユを提供することを目的とする。 The object of the present invention is to solve the above-mentioned problems and to provide a noise prevention bushing that can easily and inexpensively prevent the intrusion and leakage of high-frequency noise.
（問題点を解決するための手段）
本考案は、比透磁率μが50000以上であるCo−
Si−Ｂ系高透磁率非晶質磁性合金薄帯を巻回して
なるリング状であつて、外周に円周状の凹部が形
成され、機器の電源コードの導出孔に、はめ込ま
れる雑音防止ブツシユである。(Means for solving the problem) The present invention is based on Co
A noise prevention bushing that is ring-shaped and made by winding Si-B high permeability amorphous magnetic alloy ribbon, and has a circumferential recess formed on the outer periphery and is fitted into the outlet hole of the power cord of the device. It is.
従つて、電源コードの機器の出入口にチヨーク
コイルが配置された構造となり、高周波ノイズの
侵入、漏洩を機器の出入口で防止できる。 Therefore, the structure has such a structure that the choke coil is disposed at the entrance/exit of the device of the power cord, and it is possible to prevent the intrusion and leakage of high frequency noise at the entrance/exit of the device.
（実施例）
第１図に、本考案に係る一実施例の断面図を示
す。また、第２図に、本考案に係る一実施例の斜
視図を示す。また、第３図に、本考案に係る一実
施例を機器に取り付けた斜視図を示す。この実施
例は、比透磁率μが50000以上の特性を有するCo
−Si−Ｂ系の高透磁率非晶質磁性合金薄帯を巻回
してなるリング状磁心１を樹脂２で囲み、外周面
の略中央には円周状の凹部３が設けられ、軸中心
部に貫通孔５が設けられた雑音防止ブツシユ４で
ある。この雑音防止ブツシユ４を機器６の貫通孔
部に装着し、雑音防止ブツシユ４の貫通孔５から
電源コード７を取り出している。(Example) FIG. 1 shows a sectional view of an example according to the present invention. Further, FIG. 2 shows a perspective view of an embodiment of the present invention. Moreover, FIG. 3 shows a perspective view of one embodiment of the present invention attached to a device. In this example, Co
- A ring-shaped magnetic core 1 made of a Si-B series high permeability amorphous magnetic alloy thin ribbon is surrounded by a resin 2, and a circumferential recess 3 is provided approximately in the center of the outer circumferential surface. This is a noise prevention bushing 4 with a through hole 5 provided in the part thereof. This noise prevention bushing 4 is attached to the through hole portion of the device 6, and the power cord 7 is taken out from the through hole 5 of the noise prevention bush 4.
この実施例において、100MHz〜400MHzの不要
輻射レベルを15dB程度減衰できた。 In this example, the unnecessary radiation level of 100MHz to 400MHz could be attenuated by about 15dB.
また、第４図に本考案に係る別の実施例の分解
断面図を示す。この実施例の使用例の断面図を第
５図に示す。この実施例の雑音防止ブツシユは、
非晶質磁性合金薄帯を巻回したリング状磁心８を
樹脂９で囲み、外周の片側に円周状で凸部を形成
し、軸心中央部に貫通孔１０が形成された本体１
１と、樹脂製のリング１２とからなり、機器１３
の貫通孔に本体１１を挿入し、その反対側からリ
ング１２を挿入接着し、機器１３にこの実施例の
雑音防止ブツシユを固定している。そして、この
雑音防止ブツシユの貫通孔１０から電源コード１
４を取り出している。 Further, FIG. 4 shows an exploded sectional view of another embodiment of the present invention. A sectional view of an example of the use of this embodiment is shown in FIG. The noise prevention bushing of this embodiment is
A main body 1 in which a ring-shaped magnetic core 8 wound with an amorphous magnetic alloy ribbon is surrounded by a resin 9, a circumferential convex portion is formed on one side of the outer periphery, and a through hole 10 is formed in the center of the axis.
1 and a resin ring 12, the device 13
The noise prevention bushing of this embodiment is fixed to the device 13 by inserting the main body 11 into the through hole and inserting and gluing the ring 12 from the opposite side. Then, the power cord 1 is inserted from the through hole 10 of this noise prevention bushing.
I'm taking out 4.
この雑音防止ブツシユを用いることにより、電
源ラインを通してノイズが浸入したり、漏洩した
りすることを機器の出入口にて防止できるもので
ある。 By using this noise prevention bushing, it is possible to prevent noise from entering or leaking through the power line at the entrance/exit of the equipment.
（考案の効果）
本考案により、電源ラインを通してノイズが機
器へ浸入したり漏洩したりする事を機器の電源ラ
インの出入口にて容易に、しかも簡便に防止でき
るものであり、産業上有益である。(Effects of the invention) The invention can easily and conveniently prevent noise from entering or leaking into equipment through the power line at the entrance/exit of the equipment's power line, and is industrially beneficial. .
第１図は、本考案に係る一実施例の断面図であ
り、第２図は、本考案に係る一実施例の斜視図で
あり、第３図は、本考案に係る一実施例を機器に
取り付けた斜視図であり、第４図は、本考案に係
る別の実施例の分解断面図であり、第５図は、本
考案に係る別の実施例を機器に取り付けた断面図
である。
１，８……非晶質磁性合金薄帯を巻回したリン
グ状磁心、３……樹脂、４……雑音防止ブツシ
ユ、５，１０……貫通孔、６，１３……機器、
７，１４……電源コード、９……樹脂、１１……
雑音防止ブツシユ本体、１２……リング。
FIG. 1 is a sectional view of one embodiment of the present invention, FIG. 2 is a perspective view of one embodiment of the present invention, and FIG. 3 is a sectional view of one embodiment of the present invention. FIG. 4 is an exploded cross-sectional view of another embodiment of the present invention, and FIG. 5 is a cross-sectional view of another embodiment of the present invention attached to a device. . 1, 8... Ring-shaped magnetic core wound with an amorphous magnetic alloy ribbon, 3... Resin, 4... Noise prevention bushing, 5, 10... Through hole, 6, 13... Equipment,
7, 14...power cord, 9...resin, 11...
Noise prevention bushing body, 12...ring.
Claims (1)
透磁率非晶質磁性合金薄帯を巻回したリング状磁
心を樹脂で覆つたリング状であつて、外周に円周
状の凹部が形成され、機器の電源コードの導出孔
に、はめ込まれる雑音防止ブツシユ。 A ring-shaped magnetic core wrapped with a Co-Si-B high permeability amorphous magnetic alloy thin strip having a relative permeability μ of 50,000 or more and covered with resin, with a circumferential recess on the outer periphery. A noise prevention bushing that is formed into a hole and inserted into the exit hole of the equipment's power cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986060696U JPH0328557Y2 (en) | 1986-04-22 | 1986-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986060696U JPH0328557Y2 (en) | 1986-04-22 | 1986-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62172196U JPS62172196U (en) | 1987-10-31 |
| JPH0328557Y2 true JPH0328557Y2 (en) | 1991-06-19 |
Family
ID=30893337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986060696U Expired JPH0328557Y2 (en) | 1986-04-22 | 1986-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328557Y2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS506400U (en) * | 1973-05-16 | 1975-01-23 | ||
| JPS5636163U (en) * | 1979-08-25 | 1981-04-07 | ||
| JPS589025U (en) * | 1981-07-10 | 1983-01-20 | トヨタ自動車株式会社 | Structure of protective tubes for wire harnesses, etc. |
| JPS58144719U (en) * | 1982-03-25 | 1983-09-29 | アロン化成株式会社 | cladding tube |
-
1986
- 1986-04-22 JP JP1986060696U patent/JPH0328557Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62172196U (en) | 1987-10-31 |
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