JPH0152884B2 - - Google Patents
Info
- Publication number
- JPH0152884B2 JPH0152884B2 JP58233875A JP23387583A JPH0152884B2 JP H0152884 B2 JPH0152884 B2 JP H0152884B2 JP 58233875 A JP58233875 A JP 58233875A JP 23387583 A JP23387583 A JP 23387583A JP H0152884 B2 JPH0152884 B2 JP H0152884B2
- Authority
- JP
- Japan
- Prior art keywords
- shield case
- ground terminal
- filter device
- protrusion
- coil
- 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
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
- H01F27/36—Electric or magnetic shields or screens
-
- 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
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種電子機器に利用されるフイルタ装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a filter device used in various electronic devices.
従来例の構成とその問題点
従来から各種電子機器には、高周波コイル、ヘ
リカルフイルタ、ラインフイルタなど各種のフイ
ルタ装置が利用されている。2. Description of the Related Art Configurations of Conventional Examples and Their Problems Conventionally, various types of filter devices such as high frequency coils, helical filters, and line filters have been used in various electronic devices.
このようなフイルタ装置においては、コイル部
をシールドケースで被つた構成が一般的であり、
静電シールドをとる構成としては、第１図に示す
ようにシールドケース１の側壁に２本の突条２，
３を設け、この突条２，３間に半田付可能な金属
よりなるアース端子４を挿入し、上記突条２，３
にめ加工５を施してアース端子４の結合を計つ
ていた。 In such filter devices, the coil part is generally covered with a shield case.
As shown in Fig. 1, the electrostatic shielding structure includes two protrusions 2, 2 and 3 on the side wall of the shield case 1.
A ground terminal 4 made of solderable metal is inserted between the protrusions 2 and 3, and the protrusions 2 and 3 are connected to each other.
The ground terminal 4 was connected by applying a coating 5.
そしてこのアース端子４はアース回路に半田付
けされて静電シールドをとつていた。 This ground terminal 4 was soldered to a ground circuit to provide an electrostatic shield.
しかしながら、この構成でフイルタ装置とし、
プリント基板などに組込んで半田付を行うときに
使用するフラツクスがアース端子４とシールドケ
ース１との間に浸入して、シールドケース１とア
ース端子４間に容量分が介在し、高周波になれば
この容量分により、新たな共振点が発生してい
た。また、この容量分は湿度により変動するた
め、フイルタ装置の特性としてはきわめて不安定
になるものであつた。 However, with this configuration, as a filter device,
Flux used when soldering is assembled into a printed circuit board, etc., enters between the ground terminal 4 and the shield case 1, and a capacitance is interposed between the shield case 1 and the ground terminal 4, resulting in a high frequency. A new resonance point was generated due to the capacity of the cigarette. Further, since this capacity varies depending on humidity, the characteristics of the filter device are extremely unstable.
発明の目的
本発明は以上のような従来の欠点を除去するも
のであり、シールドケースをアース回路に接続す
る導通状態が安定した高品質のフイルタ装置を提
供することを目的とするものである。OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide a high-quality filter device that connects a shield case to a ground circuit and has a stable conduction state.
発明の構成
上記目的を達成するために本発明のフイルタ装
置は、コイルを巻回したコイルボビンにシールド
ケースを被せ、このシールドケースの側壁の突条
にアース回路に接続される半田付可能な金属より
なる先端尖鋭なアース端子を尖鋭部を溶接により
圧入結合して構成され、この構成とすることによ
り、半田付時のフラツクスの影響を受けることを
なくすことができる。Structure of the Invention In order to achieve the above-mentioned object, the filter device of the present invention includes a shielding case that covers a coil bobbin wound with a coil, and a solderable metal that is connected to a ground circuit on a protrusion on the side wall of the shielding case. The ground terminal has a sharp tip, and the sharp part is press-fitted by welding. With this structure, it is possible to eliminate the influence of flux during soldering.
実施例の説明
以下、本発明の実施例を図面第２図〜第５図に
より説明する。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 2 to 5 of the drawings.
６はコイル７を巻回したコイルボビンであり、
このコイルボビン７は端子８を植設した端子板９
の上面に一体または接着などで結合されている。
この端子板９およびコイル７には、アルミニウム
よりなるシールドケース１０が被せられている。
このシールドケース１０の側壁には半円柱状の突
条１１が形成され、この突条１１には黄銅などの
半田付可能な金属よりなり、先端に尖鋭部１２を
もつたアース端子１３が圧入結合されている。 6 is a coil bobbin around which the coil 7 is wound;
This coil bobbin 7 has a terminal plate 9 with terminals 8 implanted therein.
It is attached to the top surface of the unit either integrally or by adhesive.
The terminal plate 9 and coil 7 are covered with a shield case 10 made of aluminum.
A semi-cylindrical protrusion 11 is formed on the side wall of the shield case 10, and a ground terminal 13 made of a solderable metal such as brass and having a sharp tip 12 is press-fitted into the protrusion 11. has been done.
すなわち、このアース端子１３は第３図、第４
図に示すように、シールドケース１０に溶接電源
１４のマイナス側を、アース端子１３に溶接電源
１４のプラス側をスイツチ１５を介して接続し、
アース端子１３をシールドケース１０の突条１１
の端面に一定のギヤツプｄを保つまで近づけ、ス
イツチ１５をONにしてシールドケース１０とア
ース端子１３間にアークを発生させた後、アース
端子１３をシールドケース１０の突条１１に圧入
し、第５図に示すようにアース端子１３の尖鋭部
１２をシールドケース１０の突条１１に圧入結合
する。 That is, this ground terminal 13 is
As shown in the figure, the negative side of the welding power source 14 is connected to the shield case 10 and the positive side of the welding power source 14 is connected to the ground terminal 13 via the switch 15.
Connect the ground terminal 13 to the protrusion 11 of the shield case 10
approach the end face of the shield case 10 until it maintains a constant gap d, turn on the switch 15 to generate an arc between the shield case 10 and the ground terminal 13, press fit the ground terminal 13 into the protrusion 11 of the shield case 10, and As shown in FIG. 5, the sharp portion 12 of the ground terminal 13 is press-fitted into the protrusion 11 of the shield case 10.
これでアース端子１３はシールドケース１０に
対して一体となり強固な結合状態となる。 The ground terminal 13 is now integrated with the shield case 10 and is firmly coupled.
このような構成のフイルタ装置をプリント基板
に組込んで半田付しても、半田付時のフラツクス
がアース端子１３に沿つて上昇してきてもシール
ドケース１０の端面で上昇は阻止され、アース端
子１３とシールドケース１０間に浸入して容量分
を形成するようなことはない。 Even if a filter device having such a configuration is incorporated into a printed circuit board and soldered, even if the flux during soldering rises along the ground terminal 13, the rising is prevented by the end face of the shield case 10, and the flux rises along the ground terminal 13. There is no possibility that it will enter between the shield case 10 and the shield case 10 and form a capacitance.
発明の効果
以上のように本発明のフイルタ装置は構成され
るため、アース端子とシールドケースとの間にフ
ラツクスが浸入して容量分を形成して高周波で新
たな共振点を発生したり、湿度によりその容量分
が変化して特性を変動させるといつたことはなく
なり、特性面で著しく優れたものとでき、また、
シールドケース自体をアルミニウムなどの半田付
不可能な材料で構成して軽量化を図ることもでき
るなどの利点をもち、工業的価値の大なるもので
ある。Effects of the Invention Since the filter device of the present invention is configured as described above, flux may enter between the ground terminal and the shielding case and form a capacitance, which may generate a new resonance point at high frequencies or increase humidity. This eliminates the possibility that the capacitance changes and changes the characteristics, resulting in significantly superior characteristics.
It has the advantage that the shield case itself can be made of a non-solderable material such as aluminum to reduce its weight, and is of great industrial value.
第１図は従来のフイルタ装置を示す要部斜視
図、第２図は本発明のフイルタ装置の一実施例を
示す半断面正面図、第３図は同装置のシールドケ
ースとアース端子の組立て前の斜視図、第４図は
同組立時の状態を示す説明図、第５図は組立た状
態の要部の断面図である。
６……コイルボビン、７……コイル、８……端
子、９……端子板、１０……シールドケース、１
１……突条、１２……尖鋭部、１３……アース端
子。
Fig. 1 is a perspective view of the main parts of a conventional filter device, Fig. 2 is a half-sectional front view showing an embodiment of the filter device of the present invention, and Fig. 3 is a diagram of the same device before its shield case and ground terminal are assembled. FIG. 4 is an explanatory view showing the assembled state, and FIG. 5 is a sectional view of the main parts in the assembled state. 6... Coil bobbin, 7... Coil, 8... Terminal, 9... Terminal board, 10... Shield case, 1
1...Protrusion, 12...Sharp portion, 13...Earth terminal.
Claims (1)
ースを被せ、このシールドケースの側壁の突条に
アース回路に接続される半田付可能な金属よりな
る先端尖鋭なアース端子を尖鋭部を溶接により圧
入結合してなるフイルタ装置。1. A shield case is placed over the coil bobbin with the coil wound thereon, and a sharp-tipped earth terminal made of solderable metal that is connected to the ground circuit is press-fitted by welding to the protrusion on the side wall of the shield case. A filter device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58233875A JPS60124904A (en) | 1983-12-12 | 1983-12-12 | filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58233875A JPS60124904A (en) | 1983-12-12 | 1983-12-12 | filter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60124904A JPS60124904A (en) | 1985-07-04 |
| JPH0152884B2 true JPH0152884B2 (en) | 1989-11-10 |
Family
ID=16961932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58233875A Granted JPS60124904A (en) | 1983-12-12 | 1983-12-12 | filter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60124904A (en) |
-
1983
- 1983-12-12 JP JP58233875A patent/JPS60124904A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60124904A (en) | 1985-07-04 |
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