JPH0540640Y2 - - Google Patents
Info
- Publication number
- JPH0540640Y2 JPH0540640Y2 JP2253588U JP2253588U JPH0540640Y2 JP H0540640 Y2 JPH0540640 Y2 JP H0540640Y2 JP 2253588 U JP2253588 U JP 2253588U JP 2253588 U JP2253588 U JP 2253588U JP H0540640 Y2 JPH0540640 Y2 JP H0540640Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- vibrator
- lunge
- piezoelectric ceramics
- tight
- 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 - Lifetime
Links
- 239000000919 ceramic Substances 0.000 claims description 10
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010292 electrical insulation Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
Description
【考案の詳細な説明】
〔分野の概要〕
本考案は、ボルト締めランジユバン型振動子の
構造に関するものである。[Detailed Description of the Invention] [Overview of the Field] The present invention relates to the structure of a bolted lunge vane type vibrator.
従来この種のボルト締めランジユバン型振動子
の構造は第２図に示す如く、表裏両面に電極を施
し分極した環状の圧電セラミツクス板を、電極板
５，６を介在させ、金属ブロツク３，４により分
極した圧電セラミツクスの板を両側より挟み、一
方の金属ブロツクにはねじ穴を設け、前記圧電セ
ラミツクスの中心を通し、締め付けボルト７を一
方の金属ブロツクのねじ穴に固定し、ナツト８に
て全体を締め付ける構造となつている。この時、
振動子に電圧を加える電極の端子は、電極板５，
６をランジユバン振動子本体の外径よりも突出さ
せた部分を作り形成していた。
Conventionally, the structure of this type of bolt-tight lunge type vibrator is as shown in FIG. A polarized piezoelectric ceramic plate is sandwiched from both sides, a screw hole is provided in one metal block, the tightening bolt 7 is passed through the center of the piezoelectric ceramic, and the tightening bolt 7 is fixed in the screw hole of one metal block. It has a structure that tightens the At this time,
The terminals of the electrodes that apply voltage to the vibrator are connected to the electrode plate 5,
6 was formed by creating a part that protruded beyond the outer diameter of the Lange-Van vibrator body.
しかしながらこの構造では、電極端子の取り出
しが、前述した如くボルト締めランジユバン型振
動子外部より取り出す事となり、圧電セラミツク
ス部分の表面が結露などにより、それぞれの電極
板５，６が短絡状態になる危険があつた。又、結
露を妨止する為にシリコン樹脂等を塗布する際に
も、電極板５，６の飛び出した部分がある為、非
常に塗布しにくい構造となつていた。 However, in this structure, the electrode terminals must be taken out from the outside of the lunge-type vibrator with bolts as described above, and there is a risk that the electrode plates 5 and 6 may be short-circuited due to condensation on the surface of the piezoelectric ceramic part. It was hot. Further, even when applying silicone resin or the like to prevent dew condensation, the protruding portions of the electrode plates 5 and 6 make it extremely difficult to apply the coating.
本考案はこれらの欠点を除去する為、中央の電
極板６の取り出しを、締め付けボルト７の内部に
貫通孔を設け、中央の電極板６からのリード線を
電気絶縁被覆を施し、締め付けボルト７に設けた
貫通孔を通し、ボルト締めランジユバン型振動子
の内部より外部へ取り出すもので、電気絶縁性に
優れたボルト締めランジユバン型振動子を提供す
ることを目的とする。
In the present invention, in order to eliminate these drawbacks, a through hole is provided inside the tightening bolt 7 to take out the central electrode plate 6, and the lead wire from the central electrode plate 6 is coated with electrical insulation. The object of the present invention is to provide a bolt-tight lunge van type vibrator with excellent electrical insulation, which is taken out from the inside of the bolt-fastened lunge van type vibrator through a through-hole provided in the bolt-fastened lunge van type vibrator.
本考案は、表裏両面に電極を施した２枚の環状
圧電セラミツクスを、２個の金属ブロツクによ
り、上下から前記圧電セラミツクスの中心を通る
ボルトを介して締め付ける、中心ボルト型のボル
ト締めランジユバン型振動子において、２つの圧
電セラミツクスの接合面の中央の電極板の取り出
しを、前記ボルト内部に貫通した孔を通し、リー
ド線を用い、振動子の内部より取り出す構造とし
た事を特徴とするボルト締めランジユバン型振動
子である。
The present invention is a center-bolt type bolt tightening lunge-van type vibration device in which two pieces of annular piezoelectric ceramics with electrodes on both the front and back sides are tightened from above and below via bolts passing through the center of the piezoelectric ceramics using two metal blocks. The bolt tightening method is characterized in that the electrode plate at the center of the joint surfaces of two piezoelectric ceramics is taken out from inside the vibrator by passing it through a hole penetrating the inside of the bolt and using a lead wire. It is a Langevin type oscillator.
以下、本考案の一実施例を図面を参照にして説
明する。
Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第１図は、本考案の一実施例を示す断面図であ
る。 FIG. 1 is a sectional view showing an embodiment of the present invention.
中心締め付けボルト７の内部に貫通孔９を設
け、リード線１０を電気絶縁被覆を施し前記貫通
孔９に通し、中央の電極板６の内側端部に半田付
けする。本考案のボルト締めランジユバン型振動
子とすることにより、中央の電極板の端子がボル
ト締めランジユバン型振動子の内部より取り出せ
る為、従来電極板を外径より突出させ、電極端子
とした構造に比べて、圧電振動子表面に生ずる結
露等によつて、電極が短絡する危険性が著しく減
少し、又、電気絶縁特性を高める為のシリコン樹
脂等の電気絶縁樹脂の塗布が、中央の電極板の飛
び出しがなくなつた為、容易に、しかも確実に行
なえる様になつた。 A through hole 9 is provided inside the center tightening bolt 7, a lead wire 10 is coated with electrical insulation, passed through the through hole 9, and soldered to the inner end of the central electrode plate 6. By using the bolt-tight lunge type vibrator of the present invention, the terminals of the central electrode plate can be taken out from inside the bolt-tight lunge type vibrator, compared to the conventional structure in which the electrode plate protrudes from the outer diameter and is used as an electrode terminal. This significantly reduces the risk of short-circuiting of the electrodes due to dew condensation on the surface of the piezoelectric vibrator, and the coating of electrically insulating resin such as silicone resin to improve the electrically insulating properties of the central electrode plate Since there is no more jumping out, it has become easier and more reliable.
以上述べた如く、本考案は中央締め付けボルト
に開けた貫通孔にリード線を通す事により、電極
リード線を振動子内部より取り出す構造とし、電
気絶縁性に優れ、さらに絶縁性を高める為のシリ
コン樹脂の塗布が容易に、又、確実に表面絶縁の
出来るボルト締めランジユバン型振動子の提供が
可能となつた。 As mentioned above, the present invention has a structure in which the electrode lead wires are taken out from inside the vibrator by passing the lead wires through the through holes made in the central tightening bolt. It has now become possible to provide a bolt-tight lunge type vibrator that allows easy resin application and reliable surface insulation.
第１図は、本考案によるボルト締めランジユバ
ン型振動子の縦断面図。第２図は、従来構造によ
るボルト締めランジユバン型振動子の縦断面図。
１，２……圧電セラミツクス、３，４……金属
ブロツク、５，６……電極板、７……締め付けボ
ルト、８……ナツト、９……貫通孔、１０……リ
ード線、１１……電気絶縁樹脂。
FIG. 1 is a longitudinal cross-sectional view of a bolted lunge-type vibrator according to the present invention. FIG. 2 is a longitudinal cross-sectional view of a bolt-tight lunge type vibrator with a conventional structure. 1, 2... Piezoelectric ceramics, 3, 4... Metal block, 5, 6... Electrode plate, 7... Tightening bolt, 8... Nut, 9... Through hole, 10... Lead wire, 11... Electrical insulation resin.
Claims (1)
ツクスを、２個の金属ブロツクにより、上下から
前記圧電セラミツクスの中心を通るボルトを介し
て締め付けるボルト締めランジユバン型振動子に
おいて、２つの圧電セラミツクスの接合面の中央
電極の取り出しを、前記ボルト内部に貫通した孔
を通し、リード線を用い、振動子の内部より取り
出す構造とした事を特徴とするボルト締めランジ
ユバン型振動子。 Two pieces of annular piezoelectric ceramics with electrodes on both the front and back sides are tightened from above and below by bolts passing through the center of the piezoelectric ceramics using two metal blocks. In a bolt-tight Languevain type vibrator, two pieces of piezoelectric ceramics are joined together. A bolt-tight lunge van type vibrator characterized in that the central electrode of the surface is taken out from inside the vibrator by passing it through a hole penetrating inside the bolt and using a lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2253588U JPH0540640Y2 (en) | 1988-02-22 | 1988-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2253588U JPH0540640Y2 (en) | 1988-02-22 | 1988-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01126800U JPH01126800U (en) | 1989-08-30 |
| JPH0540640Y2 true JPH0540640Y2 (en) | 1993-10-14 |
Family
ID=31240739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2253588U Expired - Lifetime JPH0540640Y2 (en) | 1988-02-22 | 1988-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540640Y2 (en) |
-
1988
- 1988-02-22 JP JP2253588U patent/JPH0540640Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01126800U (en) | 1989-08-30 |
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