JPS5934714A - Casing method of surface wave filter - Google Patents
Casing method of surface wave filterInfo
- Publication number
- JPS5934714A JPS5934714A JP14505282A JP14505282A JPS5934714A JP S5934714 A JPS5934714 A JP S5934714A JP 14505282 A JP14505282 A JP 14505282A JP 14505282 A JP14505282 A JP 14505282A JP S5934714 A JPS5934714 A JP S5934714A
- Authority
- JP
- Japan
- Prior art keywords
- wave filter
- surface wave
- trains
- rows
- base
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/10—Mounting in enclosures
- H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
- H03H9/1071—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the SAW device
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はテレビジョン受像機、ラジオ受信機等の映像関
係の機器、さらには通信機等に利用される表面波フィル
タのケーシング方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a casing method for surface wave filters used in video-related equipment such as television receivers and radio receivers, as well as communication equipment and the like.
従来例の構成とその問題点
従来、この種の表面波フィルタのケーシング方法は、第
１図及び第２図に示すように行われている。すなわち、
圧電体表面一１−に入出力の櫛形電極を構成した表面波
フィルタチップ４を熱【＝’； ９！！ ｅｔ：樹脂製
のベース２上に接着固定し、そのフィルタチップ４をベ
ース端子３とワイヤ６を介して接続し、熱可塑性樹脂製
でしかも溶着部分にシール突起６を設けたキャップ１を
、超音波溶着捷たは加熱溶着して上記突起６をつぶし溶
かして上記ベース２と溶着していた。Conventional Structure and Problems Conventionally, a casing method for this type of surface wave filter has been carried out as shown in FIGS. 1 and 2. That is,
The surface wave filter chip 4, which has input and output comb-shaped electrodes on the piezoelectric surface 1-, is heated [='; 9! ! et: A cap 1 made of thermoplastic resin and having a seal protrusion 6 on the welded part is fixed on a base 2 made of resin with adhesive, and the filter chip 4 is connected to the base terminal 3 via a wire 6. The protrusion 6 was crushed and melted by sonic welding or heat welding to be welded to the base 2.
この場合、溶着のだめの突起６が一列のため、キャップ
１とベース２で形成される空間７の気密性は十分とはい
い難いものであった。すなわち、溶着の時にまんべんな
く一様に溶着できず、計度時の作業安定性に欠ける問題
があった。In this case, since the welding reservoir protrusions 6 were arranged in a row, the airtightness of the space 7 formed by the cap 1 and the base 2 could not be said to be sufficient. That is, when welding, welding cannot be done evenly and uniformly, and there is a problem that work stability during measurement is lacking.
発明の目的
本発明はこのような従来の欠点を除去するものて、キャ
ップとベースの溶着時の作業ｄらつきをなくすことので
きる表面波フィルタのケーシング方法を提供するもので
ある。OBJECTS OF THE INVENTION The present invention eliminates these conventional drawbacks and provides a casing method for a surface wave filter that can eliminate the wobble during welding of the cap and base.
発明の構成
上記の目的を達成するだめに本発明の表面波フィルタの
ケーシング方法は、キャップ捷だはベースの溶着箇所に
シール列を複数列配（置し、壕だその／−ル列間を区間
分割する分割列を配置し７て気密性を向上させ、さらに
溶着箇所を包むようにコーティング処理を施しだもので
ある３３この構成によってキャップとベースの溶着は、
複数のシール列及び分割列によって実施され、しかも溶
着箇所を包むようにコーティング処理されるので、気密
性が十分に保たれるものである。Structure of the Invention In order to achieve the above object, the casing method for a surface wave filter of the present invention includes arranging a plurality of seal rows at the welding location of the cap cutout or base, and sealing between the grooves and the seal rows. The welding between the cap and the base is improved by arranging dividing rows that divide the sections to improve airtightness, and coating the welding area33.
Since this is carried out using a plurality of seal rows and divided rows, and the coating is applied to cover the welded area, airtightness is sufficiently maintained.
実施例の説明
以Ｆ１本発明の一実施例について第３図及び第４図とと
もに上記と同一箇所には同一番号を付して説明する。１
ず、表面波フィルタチップ４を溶着密封する熱可塑性樹
脂製のキャップ１３の溶着部に複数（図では３個）の７
一ル列８，９．１０を設け、かつそれらノール列間を複
数に分割する分割列１１．１２（１１ａ、１２ａ）を設
けている。そして、溶着時に上記／−ル列８〜１０及び
分割列１１．１２を溶融させ、ベース２と完全１１Ｃ気
密性を向」ニさせるものである。DESCRIPTION OF EMBODIMENTS F1 An embodiment of the present invention will be described below with reference to FIGS. 3 and 4, with the same numbers assigned to the same parts as above. 1
First, a plurality of (three in the figure) 7.
Knoll rows 8, 9.10 are provided, and dividing rows 11.12 (11a, 12a) are provided for dividing the knoll rows into a plurality of sections. Then, during welding, the above-mentioned /-rule rows 8 to 10 and division rows 11 and 12 are melted to match the base 2 and complete 11C airtightness.
なお、シール列及び分割列はベースの溶着面に設けるよ
うにしても」二いものである。Incidentally, even if the seal row and the dividing row are provided on the welding surface of the base, it is still the same.
発明の効果
以上のような本発明のケーシング方法によ７１．、 ＆
：Ｊ、外界との気密は複数の７一ル列で十分に保だｉＬ
るものである。もし、実施例で示ずシール列８の一点（
引出線の位置）でシール不十分の場合、他の／−ル列９
、１０でシールされるとともに横方向への気密やぶれ
の広がりは分割列１１．１１ａでくいとめられ、つ丑り
シール列８，９と分割列１１．１１ａで形成される空間
１６内の気密破れにとどまり、他の溶着箇所へ広がらな
いという効果が得られるものである。しかも溶着箇所を
包むようにコーティング処理を施しているだめ、一層気
密性が向上するという効果を有しているものである。Effects of the Invention 71. By the casing method of the present invention as described above. , &
:J, the airtightness from the outside world is sufficiently maintained with multiple 7-1 rows.
It is something that If one point (not shown in the embodiment) of the seal row 8 (
If the seal is insufficient at the position of the leader line
, 10, and the spread of the leakage in the lateral direction is stopped by the split row 11.11a, and the airtight break in the space 16 formed by the cross seal rows 8, 9 and the split row 11.11a is prevented. The effect is that the welding remains in the area and does not spread to other welding locations. Moreover, since the coating is applied to cover the welded area, airtightness is further improved.
第１図は従来例における表面波フィルりのケーシング方
法を説明する組立前の断面図、第２図は同ケーンング後
の断面図、第３図は本発明のケーシング方法を説明する
だめのキャンプの要部拡大斜視図、第４図は本発明のケ
ーシング方法による完成品を示す断面図である。
２・・・・・ベース、４・・・・表面波フイルタチ・ノ
ブ、Ｅ３ 、９ 、１０−−−−−−シール列、１１．
１１ａ、１２゜１２ａ・・・・・・分割列、１３・・・
・キャップ、１４・・・・・・コーティング。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
３Fig. 1 is a sectional view before assembly to explain the conventional surface wave filling casing method, Fig. 2 is a sectional view after caning, and Fig. 3 is a sectional view of a dead camp to explain the casing method of the present invention. FIG. 4 is an enlarged perspective view of the main part and a sectional view showing a finished product produced by the casing method of the present invention. 2...Base, 4...Surface wave filter knob, E3, 9, 10---Seal row, 11.
11a, 12゜12a... Division row, 13...
・Cap, 14...Coating. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3
Claims (2)
波フィルタチップを熱可塑性樹脂製のベースに接着固定
し、熱可塑性樹脂製のギャップで上記表面波フィルタチ
ップを溶着密封し、かつ−上記ベースまたはキャップの
いずれが一方の溶着部に溶着時溶融接着する／−ル列を
複数列配列し、さらに」−記／−ル列間を区間分割する
分割列を配置して気密性を向上させたことを特徴とする
表面波フィルタのケーシング方法。(1) A surface wave filter chip comprising a human-powered comb-shaped electrode on the surface of a piezoelectric body is adhesively fixed to a thermoplastic resin base, and the surface wave filter chip is welded and sealed with a thermoplastic resin gap, and - Either the base or the cap is melt-bonded to one of the welded parts by arranging multiple rows of wires, and further arranging dividing rows that divide the rows into sections to ensure airtightness. A casing method for a surface wave filter characterized by improved properties.
請求の範囲第１項記載の表面波フィルタのケーシング方
法。(2) A casing method for a surface acoustic wave filter according to claim 1, wherein the welded portion is coated so as to surround it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14505282A JPS5934714A (en) | 1982-08-20 | 1982-08-20 | Casing method of surface wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14505282A JPS5934714A (en) | 1982-08-20 | 1982-08-20 | Casing method of surface wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5934714A true JPS5934714A (en) | 1984-02-25 |
Family
ID=15376264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14505282A Pending JPS5934714A (en) | 1982-08-20 | 1982-08-20 | Casing method of surface wave filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5934714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6399770B1 (en) * | 1998-10-07 | 2002-06-04 | Otsuka Kagaku Kabushiki Kaisha | Preparation of β-hydroxy esters using ammonium borohydrides |
-
1982
- 1982-08-20 JP JP14505282A patent/JPS5934714A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6399770B1 (en) * | 1998-10-07 | 2002-06-04 | Otsuka Kagaku Kabushiki Kaisha | Preparation of β-hydroxy esters using ammonium borohydrides |
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