JPH0680978B2 - High frequency oscillation block - Google Patents
High frequency oscillation blockInfo
- Publication number
- JPH0680978B2 JPH0680978B2 JP5001085A JP5001085A JPH0680978B2 JP H0680978 B2 JPH0680978 B2 JP H0680978B2 JP 5001085 A JP5001085 A JP 5001085A JP 5001085 A JP5001085 A JP 5001085A JP H0680978 B2 JPH0680978 B2 JP H0680978B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- shield case
- oscillation
- hole
- bottom plate
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明はパーソナル無線、コードレス電話等に使用す
る発振ブロックに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oscillating block used for personal radios, cordless telephones and the like.
従来の技術 従来は第３図，第４図のように発振コイル23のシールド
ケース12の天井部に穴14を設け、かつシールドケース15
の天井部で発振コイル23の上部に貫通穴13を設け、上部
よりシールドケース15の穴13を通してドライバーを差し
込んでネジコア22を回し、発振周波数の調整を行ってい
る。16はプリント基板、17はシールドケース15の底板、
18はプリント基板16に一端を接続した端子である。2. Description of the Related Art Conventionally, as shown in FIGS. 3 and 4, a hole 14 is provided in a ceiling portion of a shield case 12 of an oscillation coil 23, and a shield case 15 is provided.
A through hole 13 is provided above the oscillation coil 23 in the ceiling part of the above, and a screwdriver 22 is inserted through the hole 13 of the shield case 15 from above and the screw core 22 is rotated to adjust the oscillation frequency. 16 is a printed circuit board, 17 is a bottom plate of the shield case 15,
Reference numeral 18 is a terminal whose one end is connected to the printed board 16.
発明が解決しようとする問題点 しかし、このような構造では発振コイル23とシールドケ
ース15の間隔が狭いため、発振コイル23の磁束がシール
ドケース12の穴より漏れ、外部より加振した場合、シー
ルドケース15が振動し、発振コイル23の磁束が大きく変
化し、発振周波数が不安定になる問題がある。However, since the gap between the oscillation coil 23 and the shield case 15 is narrow in such a structure, when the magnetic flux of the oscillation coil 23 leaks from the hole of the shield case 12 and is excited from the outside, the shield There is a problem that the case 15 vibrates, the magnetic flux of the oscillation coil 23 changes greatly, and the oscillation frequency becomes unstable.
また、シールドケース15にも穴13を設けているため、こ
の部分の振動時の動きが大きくなる。そこで、本発明は
外部からの加振に対し磁束の変化を受けにくくしたもの
である。Further, since the shield case 15 is also provided with the hole 13, the movement of this portion during vibration becomes large. In view of this, the present invention makes it difficult for the magnetic flux to change due to external vibration.
問題点を解決するための手段 そして上記問題点を解決する本発明の技術的な手段は、
プリント基板上に、コイルの下部以外をシールドし、下
面側から調整されるネジコアを有する発振コイルを設け
るとともに、この発振コイル下部のプリント基板と底板
に前記ネジコアに向けてドライバーを挿入するための貫
通穴を設けたものである。Means for Solving the Problems And technical means of the present invention for solving the above problems,
Provided on the printed circuit board is an oscillator coil that shields everything except the lower part of the coil and has a screw core that can be adjusted from the bottom side, and a penetrating hole for inserting the driver toward the screw core on the printed circuit board and bottom plate under the oscillator coil. It has holes.
作用 この技術的手段による作用は次のようになる。Action The action of this technical means is as follows.
発振周波数の調整用貫通穴をプリント基板と底板に設け
ることにより、発振コイルの上部の穴及び外装用シール
ドケースの穴を設ける必要がなくなり、ここからの磁束
洩れがなくなり、ケースの振動による周波数変化がなく
なる。また底板に穴を設け、振動しやすくなっても発振
コイルとの距離が得られるため、ほとんど影響がない。By providing through-holes for adjusting the oscillation frequency in the printed circuit board and bottom plate, there is no need to provide holes in the upper part of the oscillation coil and holes in the shield case for the exterior, eliminating magnetic flux leakage from this and changing the frequency due to case vibration. Disappears. Further, even if the bottom plate is provided with a hole to make it easier to vibrate, the distance to the oscillation coil can be obtained, so there is almost no effect.
実施例 本発明の実施例を添付図面にもとづいて説明する。第１
図において、下面以外がシールドケース５でシールドさ
れた発振コイル11をプリント基板２の上面部に取付け、
下部にはチップ部品10及び外部との接続用端子４をハン
ダ付けしている。これをシールドケース１と底板３によ
り完全にシールドしている。発振コイル11の下部のプリ
ント基板２に周波数調整用の貫通穴９を設け、底板３に
も貫通穴3aが設けられている。６は発振コイル11のネジ
コアで、下面側から貫通穴3a,9を介して挿入されたドラ
イバーにより調整される。７はコイル、８は樹脂であ
る。Embodiment An embodiment of the present invention will be described with reference to the accompanying drawings. First
In the figure, the oscillation coil 11 shielded by the shield case 5 except the lower surface is attached to the upper surface of the printed circuit board 2,
A chip part 10 and a terminal 4 for external connection are soldered to the lower part. This is completely shielded by the shield case 1 and the bottom plate 3. The printed circuit board 2 below the oscillation coil 11 is provided with a through hole 9 for frequency adjustment, and the bottom plate 3 is also provided with a through hole 3a. Reference numeral 6 is a screw core of the oscillation coil 11, which is adjusted by a driver inserted through the through holes 3a and 9 from the lower surface side. Reference numeral 7 is a coil, and 8 is a resin.
発振コイル11のシールドケース５の天井部に穴がないた
め、磁束の漏れがなく、外部からの加振によりシールド
ケース１が振動しても周波数変化がなく、安定な発振ブ
ロックが得られる。Since there is no hole in the ceiling of the shield case 5 of the oscillation coil 11, there is no leakage of magnetic flux, and there is no frequency change even if the shield case 1 vibrates due to external vibration, and a stable oscillation block can be obtained.
発明の効果 以上のように本発明はコイルの下面側から調整されるネ
ジコアを設け、それを下面側のプリント基板と底板の貫
通孔を貫通したドライバーにより調整するものであり、
下部以外をシールドしているため、上部方向の磁束の漏
れがなく、外部からの加振によりシールドケースが振動
しても磁束の変化がなく、発振周波数が安定しており、
加振に強い、高周波発振ブロックが得られる。As described above, the present invention provides the screw core adjusted from the lower surface side of the coil, and adjusts it by the driver penetrating the through holes of the printed board and the bottom plate on the lower surface side.
Since the parts other than the lower part are shielded, there is no leakage of magnetic flux in the upper direction, there is no change in magnetic flux even if the shield case vibrates due to external vibration, and the oscillation frequency is stable.
A high-frequency oscillation block that is strong against vibration can be obtained.
第１図は本発明の一実施例による高周波発振ブロックを
示す断面図、第２図は同底面図、第３図は従来の高周波
発振ブロックを示す上面図、第４図は同断面図である。 １……シールドケース、２……プリント基板、３……底
板、3a,9……貫通穴、４……端子、５……シールドケー
ス、11……発振コイル。1 is a sectional view showing a high frequency oscillating block according to an embodiment of the present invention, FIG. 2 is a bottom view of the same, FIG. 3 is a top view showing a conventional high frequency oscillating block, and FIG. 4 is a sectional view of the same. . 1 ... Shield case, 2 ... Printed circuit board, 3 ... Bottom plate, 3a, 9 ... Through hole, 4 ... Terminal, 5 ... Shield case, 11 ... Oscillation coil.
Claims (1)
ールドし、下面側から調整されるネジコアを有する発振
コイルを設け、これを外装シールドケースと底板により
シールドし、発振コイルの下部のプリント基板と底板
に、前記ネジコアに向けてドライバーを挿入するための
貫通穴を設けた高周波発振ブロック。1. A printed circuit board on the lower side of an oscillation coil is provided on the printed circuit board, the oscillation coil having a screw core that is shielded except the lower part of the coil and adjusted from the lower surface side is provided and shielded by an outer shield case and a bottom plate. A high-frequency oscillation block having a through hole for inserting a driver toward the screw core on the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5001085A JPH0680978B2 (en) | 1985-03-13 | 1985-03-13 | High frequency oscillation block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5001085A JPH0680978B2 (en) | 1985-03-13 | 1985-03-13 | High frequency oscillation block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61208906A JPS61208906A (en) | 1986-09-17 |
| JPH0680978B2 true JPH0680978B2 (en) | 1994-10-12 |
Family
ID=12847023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5001085A Expired - Fee Related JPH0680978B2 (en) | 1985-03-13 | 1985-03-13 | High frequency oscillation block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0680978B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071846Y2 (en) * | 1988-02-15 | 1995-01-18 | 株式会社村田製作所 | Dielectric resonator mounting structure |
-
1985
- 1985-03-13 JP JP5001085A patent/JPH0680978B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61208906A (en) | 1986-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |