JPH0132477Y2 - - Google Patents
Info
- Publication number
- JPH0132477Y2 JPH0132477Y2 JP8652984U JP8652984U JPH0132477Y2 JP H0132477 Y2 JPH0132477 Y2 JP H0132477Y2 JP 8652984 U JP8652984 U JP 8652984U JP 8652984 U JP8652984 U JP 8652984U JP H0132477 Y2 JPH0132477 Y2 JP H0132477Y2
- Authority
- JP
- Japan
- Prior art keywords
- printed wiring
- flexible printed
- wiring board
- piezoelectric plate
- groove
- 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
- 239000000523 sample Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 229920002284 Cellulose triacetate Polymers 0.000 description 3
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Description
【考案の詳細な説明】
（技術分野）
本考案は、超音波探触子に関し、詳しくは、外
部接続用のフレキシブルプリント配線板の取付溝
造に関する。[Detailed Description of the Invention] (Technical Field) The present invention relates to an ultrasonic probe, and more particularly, to a mounting groove structure for a flexible printed wiring board for external connection.
（従来技術）
従来、超音探触子に外部接続用の導線を取り付
けるのにあたつては、全面に電極を有する圧電板
の側面にフレキシブルプリント配線板やリードフ
レームをハンダや導電性接着剤等で取り付けるこ
とが行われていた。(Prior art) Conventionally, when attaching conductive wires for external connection to an ultrasonic probe, a flexible printed wiring board or lead frame was attached to the side of a piezoelectric plate, which has electrodes on the entire surface, using solder or conductive adhesive. etc. were installed.
しかし、このような従来の構造によれば、取付
作業に相当高度の技術が必要であり、製品として
の事故率や故障率が比較的高く、信頼性に欠ける
という問題がある。 However, such a conventional structure requires a considerably high level of skill for installation work, and has problems in that the product has a relatively high accident rate and failure rate, and lacks reliability.
（考案の目的）
本考案は、上記の問題に鑑みてなされたもの
で、その目的は、比較的簡単な構成で信頼性の高
い外部接続用の導線の取付構造を有する超音波探
触子を実現することにある。(Purpose of the invention) The present invention was devised in view of the above problems, and its purpose is to provide an ultrasonic probe with a relatively simple configuration and a highly reliable mounting structure for conducting wires for external connections. It's about making it happen.
（考案の構成）
この目的を達成する本考案は、圧電板の一部に
溝部を設け、該溝部に外部接続用のフレキシブル
プリント配線板の端部を嵌入固着することを特徴
とするものである。(Structure of the invention) The present invention that achieves this object is characterized in that a groove is provided in a part of the piezoelectric plate, and the end of a flexible printed wiring board for external connection is inserted and fixed into the groove. .
（実施例）
以下、図面を参照し、本考案の実施例を詳細に
説明する。(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本考案の一実施例の要部を示す構成図
である。第１図において、１０はPZT等よりな
る圧電板、２０は外部接続用の導線として用いる
フレキシブルプリント配線板である。圧電板１０
の両端面を除く全周には電極１１が設けられてい
る。そして、該圧電板１０の一方の面の両側面近
傍には長手方向（Ｘ方向）に沿つてそれぞれ溝部
１２，１３が設けられている。これら溝部１２，
１３は圧電板１０の両端面を除く全周に設けられ
ている電極１１を信号電極１１ａと共通電極１１
ｂとに分離する機能を有し、更にいずれか一方の
溝部（例えば１３）はフレキシブルプリント配線
板２０の端部を嵌入固着するための取付部として
用いられる。これらの溝部１２，１３の幅は少な
くともフレキシブルプリント配線板２０の端部が
嵌入できる程度あればよく、フレキシブルプリン
ト配線板２０の厚さ程度（70μｍ〜100μｍ）あれ
ばよい。このような幅の溝部はダイシングソーの
厚刃を用いることにより一括して切り込むことが
できる。フレキシブルプリント配線板２０の一方
の面には信号配線パターン２１が設けられ、他方
の面には共通配線パターン２２が設けられてい
る。 FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention. In FIG. 1, 10 is a piezoelectric plate made of PZT or the like, and 20 is a flexible printed wiring board used as a conductor for external connection. Piezoelectric plate 10
Electrodes 11 are provided around the entire circumference except for both end faces. Grooves 12 and 13 are provided near both side surfaces of one surface of the piezoelectric plate 10 along the longitudinal direction (X direction), respectively. These grooves 12,
Reference numeral 13 denotes an electrode 11 provided around the entire circumference of the piezoelectric plate 10 except for both end surfaces, and a signal electrode 11a and a common electrode 11.
Further, one of the grooves (for example, 13) is used as a mounting portion for fitting and fixing the end portion of the flexible printed wiring board 20. The width of these grooves 12 and 13 should be such that at least the end portion of the flexible printed wiring board 20 can be fitted therein, and it is sufficient that the width is approximately the same as the thickness of the flexible printed wiring board 20 (70 μm to 100 μm). Grooves having such a width can be cut all at once using a thick blade of a dicing saw. A signal wiring pattern 21 is provided on one side of the flexible printed wiring board 20, and a common wiring pattern 22 is provided on the other side.
これら圧電板１０のフレキシブルプリント配線
板２０は、フレキシブルプリント配線板２０の端
部を圧電板１０の溝部１３に嵌入固着することに
より一体化される。そして、圧電板１０の信号電
極１１ａとフレキシブルプリント配線板２０の信
号配線パターン２１を、例えばハンダや導電性接
着剤を用いて電気的且つ機械的に結合し、圧電板
１０の共通電極１１ｂとフレキシブルプリント配
線板２０の共通配線パターン２２も同様にして電
気的且つ機械的に結合する。 The flexible printed wiring boards 20 of these piezoelectric plates 10 are integrated by fitting and fixing the ends of the flexible printed wiring boards 20 into the grooves 13 of the piezoelectric plates 10. Then, the signal electrode 11a of the piezoelectric plate 10 and the signal wiring pattern 21 of the flexible printed wiring board 20 are electrically and mechanically coupled using, for example, solder or conductive adhesive, and the common electrode 11b of the piezoelectric plate 10 and the flexible The common wiring pattern 22 of the printed wiring board 20 is also electrically and mechanically coupled in the same manner.
尚、フレキシブルプリント配線板２０の端部を
圧電板１０の溝部１３に差し込むのにあたつて
は、溝部１３内における圧電板１０とフレキシブ
ルプリント配線板２０との機械的な結合を強固に
するために、非導電性の接着剤を用いるとよい。 Note that when inserting the end of the flexible printed wiring board 20 into the groove 13 of the piezoelectric board 10, it is necessary to strengthen the mechanical connection between the piezoelectric board 10 and the flexible printed wiring board 20 within the groove 13. It is advisable to use a non-conductive adhesive.
又、圧電板１０の全周に電極１１を設けた状態
では分極は行えない。従つて、まず圧電板１０の
上下両面にのみ電極を設けて分極を行い、分極後
両側面に回り込み用の電極を設けるようにしても
よいし、本実施例のように全周に電極１１が設け
られた圧電板１０の一方の面に２本の溝１２，１
３を設けた後に分極すればよい。 Furthermore, polarization cannot be performed with the electrodes 11 provided around the entire circumference of the piezoelectric plate 10. Therefore, first, electrodes may be provided on both the upper and lower surfaces of the piezoelectric plate 10 to perform polarization, and after polarization, wrap-around electrodes may be provided on both sides, or electrodes 11 may be provided around the entire circumference as in this embodiment. Two grooves 12, 1 are formed on one surface of the piezoelectric plate 10 provided.
Polarization may be performed after providing 3.
このように構成することにより、従来の構成に
比べて、取付作業は極めて容易であり、格段に強
固な結合が得られ、量産性に富む。又、温度、圧
力、曲げ応力等に対しても安定な結合状態を示
し、信頼性の高い外部接続用の導線の取付構造が
得られる。 With this configuration, compared to conventional configurations, the installation work is extremely easy, a much stronger connection can be obtained, and mass production is possible. Further, the bonding state is stable against temperature, pressure, bending stress, etc., and a highly reliable mounting structure for conducting wires for external connection can be obtained.
第２図は第１図のように一体化された圧電板１
０及びフレキシブルプリント配線板２０を用いた
超音波探触子の一例を示す構成図である。第２図
において、３０はバツキング材、４０は石英ガラ
ス、５０はトリアセチルセルロースである。 Figure 2 shows the piezoelectric plate 1 integrated as shown in Figure 1.
2 is a configuration diagram showing an example of an ultrasonic probe using a flexible printed wiring board 20 and a flexible printed wiring board 20. FIG. In FIG. 2, 30 is a backing material, 40 is quartz glass, and 50 is triacetylcellulose.
このような超音波探触子は次のようにして構成
される。まず、第１図のように一体化された圧電
板１０及びフレキシブルプリント配線板２０をバ
ツキング材３０上に取り付けてダイシングを行
い、多数の素子に切断分離して素子列を形成す
る。ダイシングにあたつては、従来から行われて
いるように、フレキシブルプリント配線板２０の
信号配線パターン２１を目安にしてダイシングソ
ーの刃先を圧電板１０が完全に切断される深さま
で切り込ませ、フレキシブルプリント配線板２０
の信号配線パターン２１に応じてＸ方向に多数の
素子が配列されるようにＹ方向に多数の切溝を設
ける。尚、これら各切溝によりフレキシブルプリ
ント配線板２０とハンダ又は導電性接着剤も切断
分離されることになる。このようにして素子列を
形成した後、素子列上に石英ガラス４０を設け、
石英ガラス４０上にトリアセチルセルロース５０
を設ける。 Such an ultrasonic probe is constructed as follows. First, as shown in FIG. 1, the integrated piezoelectric plate 10 and flexible printed wiring board 20 are mounted on a backing material 30 and diced to form a large number of elements to form element arrays. For dicing, as is conventionally done, the cutting edge of the dicing saw is cut to a depth that completely cuts the piezoelectric plate 10, using the signal wiring pattern 21 of the flexible printed wiring board 20 as a guide. Flexible printed wiring board 20
A large number of grooves are provided in the Y direction so that a large number of elements are arranged in the X direction according to the signal wiring pattern 21 of. Incidentally, the flexible printed wiring board 20 and the solder or conductive adhesive are also cut and separated by these grooves. After forming the element array in this way, quartz glass 40 is provided on the element array,
50% triacetylcellulose on 40% quartz glass
will be established.
これにより、第１図の構成の効果に併せて、外
部接続用の導線の空間的広がりを極めて小さくで
きるので、外部からの磁界性のノイズ混入に対し
て格段に強い超音波探触子が得られる。 As a result, in addition to the effect of the configuration shown in Figure 1, the spatial spread of the external connection conductor can be made extremely small, resulting in an ultrasonic probe that is extremely resistant to external magnetic field noise. It will be done.
尚、上記実施例では、圧電板１０の一方の面に
溝部１２，１３を設けて溝部１３にフレキシブル
プリント配線板２０の端部を嵌入固着する例を示
したが、第３図に示すように一方の側面に溝部１
４を設けてフレキシブルプリント配線板２０の端
部を嵌入固着するようにしてもよい。このような
構成によれば、他方の側面の回り込み電極は不要
になる。 In the above embodiment, the grooves 12 and 13 are provided on one surface of the piezoelectric plate 10, and the end of the flexible printed wiring board 20 is inserted and fixed into the groove 13, but as shown in FIG. Groove 1 on one side
4 may be provided to fit and secure the end of the flexible printed wiring board 20. According to such a configuration, the wrap-around electrode on the other side becomes unnecessary.
又、第３図のように圧電板１０の一方の側面に
溝部１４を設ける代わりに、第４図に示すように
幅の異なる少なくとも３枚のグリーンシート１５
〜１７を重ねて焼成してもよい。このように構成
することにより、圧電板１０の側面には幅の狭い
グリーンシート１６により予め溝が形成されるこ
とになり、第３図と同様な構成のフレキシブルプ
リント配線板２０の取付構造が得られる。この場
合、フレキシブルプリント配線板２０の厚みを
75μｍとすると、焼成後のグリーンシート１６の
厚みが80μｍ程度になると共に、焼成後のグリー
ンシート１５〜１７全体の厚みとして0.3mm程度
になるようにすればよい。 Also, instead of providing the groove 14 on one side of the piezoelectric plate 10 as shown in FIG. 3, at least three green sheets 15 of different widths are provided as shown in FIG.
- 17 may be stacked and fired. With this configuration, a groove is formed in advance on the side surface of the piezoelectric plate 10 by the narrow green sheet 16, and a mounting structure for the flexible printed wiring board 20 having the same configuration as that shown in FIG. 3 can be obtained. It will be done. In this case, the thickness of the flexible printed wiring board 20 is
When the thickness is 75 μm, the thickness of the green sheet 16 after firing is about 80 μm, and the thickness of the entire green sheets 15 to 17 after firing is about 0.3 mm.
又、本考案は、複数の素子で構成される素子列
に限るものではなく、単素子（単板）であつても
よい。第５図ａ，ｂは円板形の圧電板１０の周面
に溝部１８を設けてフレキシブルプリント配線板
２０の端部を嵌入固着した例を示し、第６図ａ，
ｂは円板形の圧電板１０の一方の面に溝部１９を
設けてフレキシブルプリント配線板２０の端部を
嵌入固着した例を示している。 Further, the present invention is not limited to an element array composed of a plurality of elements, but may be a single element (single plate). 5a and 5b show an example in which a groove 18 is provided on the circumferential surface of a disc-shaped piezoelectric plate 10 and the end of a flexible printed wiring board 20 is inserted and fixed therein, and FIGS.
b shows an example in which a groove 19 is provided on one surface of a disk-shaped piezoelectric plate 10, and an end portion of a flexible printed wiring board 20 is inserted and fixed therein.
又、円板形の圧電板の周面に円弧状の溝部を設
けることにより、円形アパーチユアの素子列を作
ることもできる。 Further, by providing an arcuate groove on the circumferential surface of a disk-shaped piezoelectric plate, an element array with a circular aperture can be created.
（考案の効果）
以上説明したように、本考案によれば、比較的
簡単な構成で信頼性の高い外部接続用の導線の取
付構造を有する超音波探触子が実現できる。(Effects of the Invention) As described above, according to the present invention, it is possible to realize an ultrasonic probe having a relatively simple configuration and a highly reliable mounting structure for conducting wires for external connection.
第１図は本考案の一実施例の要部を示す構成
図、第２図は第１図を用いた超音波探触子の一例
を示す構成図、第３図乃至第６図は本考案の他の
実施例の要部を示す構成図、第５図及び第６図に
おいてｂはａの縦断面図である。
１０…圧電板、１１…電極、１２〜１４，１
８，１９…溝部、１５〜１７…グリーンシート、
２０…フレキシブルプリント配線板、３０…バツ
キング材、４０…石英ガラス、５０…トリアセチ
ルセルロース。
Fig. 1 is a block diagram showing the main parts of an embodiment of the present invention, Fig. 2 is a block diagram showing an example of an ultrasonic probe using Fig. 1, and Figs. 3 to 6 are the block diagrams of the present invention. In FIGS. 5 and 6, b is a vertical cross-sectional view of a. 10... Piezoelectric plate, 11... Electrode, 12-14, 1
8, 19...Groove portion, 15-17...Green sheet,
20... Flexible printed wiring board, 30... Backing material, 40... Quartz glass, 50... Triacetylcellulose.
Claims (1)
用のフレキシブルプリント配線板の端部を嵌入固
着することを特徴とする超音波探触子。 An ultrasonic probe characterized in that a groove is provided in a part of the piezoelectric plate, and an end of a flexible printed wiring board for external connection is inserted and fixed into the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8652984U JPS611994U (en) | 1984-06-11 | 1984-06-11 | ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8652984U JPS611994U (en) | 1984-06-11 | 1984-06-11 | ultrasonic probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS611994U JPS611994U (en) | 1986-01-08 |
| JPH0132477Y2 true JPH0132477Y2 (en) | 1989-10-04 |
Family
ID=30637924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8652984U Granted JPS611994U (en) | 1984-06-11 | 1984-06-11 | ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS611994U (en) |
-
1984
- 1984-06-11 JP JP8652984U patent/JPS611994U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS611994U (en) | 1986-01-08 |
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