JPS6136904Y2 - - Google Patents
Info
- Publication number
- JPS6136904Y2 JPS6136904Y2 JP17069079U JP17069079U JPS6136904Y2 JP S6136904 Y2 JPS6136904 Y2 JP S6136904Y2 JP 17069079 U JP17069079 U JP 17069079U JP 17069079 U JP17069079 U JP 17069079U JP S6136904 Y2 JPS6136904 Y2 JP S6136904Y2
- Authority
- JP
- Japan
- Prior art keywords
- bimorph
- weight
- plate
- presser plate
- insulating material
- 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
- 239000011810 insulating material Substances 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000006850 spacer group Chemical class 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
【考案の詳細な説明】
本考案は、バイモルフ型振動−電気変換器に関
するものであつて、所定の振動を電気的な信号に
変換する変換器に於て、ベンデイングモードで振
動するバイモルフの中央部に位置する負荷重量た
る錘の固定を確実に達成し得るようにしたもので
ある。[Detailed description of the invention] The present invention relates to a bimorph vibration-to-electricity converter, which converts a predetermined vibration into an electrical signal. This makes it possible to reliably fix the weight, which is the load weight, located in the area.
バイモルフ型振動−電気変換器は、二枚の圧電
素子を貼り合わせて構成した所謂バイモルフの振
動を電気的な信号に変換するものであるが、変換
器内に装着され所定の振動を受けて上下振動する
バイモルフにあつて、当該バイモルフの振動感度
を増すべく負荷質量として錘を取りつけることが
行なわれている。 A bimorph type vibration-electrical converter converts the vibrations of a so-called bimorph made by bonding two piezoelectric elements into electrical signals. In order to increase the vibration sensitivity of a vibrating bimorph, a weight is attached as a load mass.
ところがバイモルフに接着剤を用いるなり溶着
する等して上記錘を固着しても、バイモルフの強
い振動等によつて錘が剥れ易くなる欠点があつ
た。そこで螺子等の固着具を介してバイモルフに
錘を固定する手段も考えられる訳であるが、バイ
モルフを形成する圧電素子は、通常セラミツク製
である為に脆弱であり、従つて固着具用の穿孔加
工が難しく且つこの穿孔により更に脆くなつてし
まう不都合が存つたのである。 However, even if the weight is fixed to the bimorph by using an adhesive or by welding, there is a drawback that the weight tends to peel off due to strong vibrations of the bimorph. Therefore, a method of fixing the weight to the bimorph via a fixing device such as a screw could be considered, but the piezoelectric element that forms the bimorph is usually made of ceramic and is therefore fragile, so it is difficult to drill holes for the fixing device. There were disadvantages in that it was difficult to process and the perforations made it even more brittle.
而して本考案は、かような不都合、不満点を解
消するべく案出されたものであつて、バイモルフ
型振動−電気変換器に於て、器内に架設されたバ
イモルフの中央部を挟む態様で錘と押え板とを直
接に固着具を介して連結し、しかも固着具等を利
用して錘を取り付けるにも拘らずバイモルフの上
面と下面とを絶縁出来ると共に、この絶縁物の持
つ緩衝作用によつて、外力の作用に対して脆弱な
バイモルフを保護できるようにしたものであり、
以下本考案の一実施例を図面に従つて説明する。 The present invention was devised to solve these inconveniences and dissatisfaction points, and is a bimorph type vibration-electric converter in which the central part of the bimorph installed in the device is sandwiched. In this embodiment, the weight and the holding plate are directly connected via the fixing device, and even though the weight is attached using the fixing device, the upper and lower surfaces of the bimorph can be insulated, and the buffer provided by this insulator can be This function allows the bimorph, which is vulnerable to the action of external forces, to be protected.
An embodiment of the present invention will be described below with reference to the drawings.
図面にあつて、符号１は箱形状の本体で、ケー
ス体２の下端にベース板３を嵌め込んだ構成であ
り、当該ベース板３中心部には後述するバイモル
フ８の一方の極に接続されたリード線４が貫通す
る孔５が穿たれており、更にベース板３内面上に
は断面が略コ字形状に機械加工又は屈曲成形され
た一対の金属製ホルダー６が夫々対向する姿勢で
所定間隔をあけて立設固定されている。 In the drawing, reference numeral 1 denotes a box-shaped main body, which has a structure in which a base plate 3 is fitted into the lower end of a case body 2, and a base plate 3 is connected to one pole of a bimorph 8, which will be described later, at the center of the base plate 3. A hole 5 is bored through which a lead wire 4 passes through, and a pair of metal holders 6, each machined or bent to have a substantially U-shaped cross section, are placed on the inner surface of the base plate 3 in a predetermined position facing each other. They are fixed upright at intervals.
また上記一対のホルダー６に長手方向の両端部
がクツシヨン材７を介して支持されて架設される
バイモルフ８は、二枚の圧電素子を貼り合わせた
長方板形状であつて、本実施例では一対並んで配
されており、これらのバイモルフ８は、夫々の中
央部に於て直交する態様で横架される通電も兼ね
た金属製の錘９によつて連結されている。 Further, the bimorph 8, which is constructed by supporting the pair of holders 6 at both ends in the longitudinal direction via the cushion material 7, is in the shape of a rectangular plate made by bonding two piezoelectric elements. A pair of bimorphs 8 are arranged side by side, and these bimorphs 8 are connected by a metal weight 9, which also serves as an electric current, and is hung horizontally at the center of each bimorph 8 in an orthogonal manner.
なお、一般には両バイモルフ８，８間の通電を
確保するため、第１図の如く、両バイモルフ８，
８の上位の極間を半田付けされたリード線で短絡
する。 Generally, in order to ensure electrical conduction between both bimorphs 8, 8, both bimorphs 8, 8 are connected as shown in FIG.
Short-circuit the upper poles of No. 8 with soldered lead wires.
即ち図示例にあつて、先ず棒状の錘９下面の適
宜箇所には、幅方向に沿つてバイモルフ８の数に
対応して二本の浅溝１０が設けられている。当該
浅溝１０は、バイモルフ８の厚さとほぼ同一の値
の深さを有し且つバイモルフ８の幅よりやや大き
な値の幅を有しており、一対のバイモルフ８は両
側端面が浅溝１０の両側面に接触することなく当
該浅溝１０内に嵌り込み、しかも夫々の上面が錘
９によつて電気的に直列に通電されることにな
る。かような状態でバイモルフ８及び錘９の下方
から平板状の押え板１１を絶縁材１３を介して対
向させ、バイモルフ８を錘９と押え板１１とで挟
持する態様で、錘９下面と押え板１１上面とが絶
縁材１３を介して直接対向する箇所で螺子等の固
着具１２で連結固定するのである。 That is, in the illustrated example, two shallow grooves 10 corresponding to the number of bimorphs 8 are provided at appropriate locations on the lower surface of the rod-shaped weight 9 along the width direction. The shallow groove 10 has a depth that is almost the same as the thickness of the bimorph 8 and a width that is slightly larger than the width of the bimorph 8. It fits into the shallow groove 10 without contacting both side surfaces, and the top surfaces of each are electrically energized in series by the weight 9. In such a state, a flat presser plate 11 is placed opposite the bimorph 8 and the weight 9 from below with the insulating material 13 in between, and the bimorph 8 is held between the weight 9 and the presser plate 11, so that the lower surface of the weight 9 and the presser plate are held together. The upper surface of the plate 11 is connected and fixed with a fixing member 12 such as a screw at a location directly facing the upper surface of the plate 11 with an insulating material 13 interposed therebetween.
絶縁材１３は、軟質合成樹脂とかゴム等の弾力
による緩衝作用のある電気絶縁材料により皮膜
状、シート状、板状等に成形されるものであつ
て、バイモルフ８の下面と押え板１１との間の電
気絶縁を達成すると共に、押え板１１からバイモ
ルフ８に作用する締付け力が不均一に作用した
り、または押え板１１および錘９からの外力が不
均一に且つ衝撃的に作用するのを防止し、もつて
脆弱なバイモルフ８を機械的な外力の作用から保
護するものとなつている。 The insulating material 13 is made of an electrically insulating material such as soft synthetic resin or rubber that has a buffering effect due to its elasticity, and is formed into a film, sheet, plate, etc. In addition to achieving electrical insulation between the two, it also prevents the clamping force from acting on the bimorph 8 from the presser plate 11 to act unevenly, or the external force from the presser plate 11 and the weight 9 to act unevenly and impulsively. This is to protect the fragile bimorph 8 from the action of external mechanical forces.
なお、絶縁材１３は、バイモルフ８と押え板１
１との間にその設置箇所が限定されるものではな
く、バイモルフ８と錘９との間であつても良い。 Note that the insulating material 13 is used for the bimorph 8 and the presser plate 1.
The installation location between the bimorph 8 and the weight 9 is not limited, and may be between the bimorph 8 and the weight 9.
而して錘９は、バイモルフ８を押え板１１とに
よつて上下からぴつたりと挟持することによつて
バイモルフ８に確固と固着されるのである。 Thus, the weight 9 is securely fixed to the bimorph 8 by tightly holding the bimorph 8 from above and below with the holding plate 11.
この場合、セラミツク製の脆弱なバイモルフ８
は、固着具１２の締め付けによつて上面と下面が
錘９と押え板１１とによつて押圧されるものの、
この締付力は絶縁材１３の緩衝作用によつてバイ
モルフ８の上面と下面との夫々の全域にわたつて
均一に加わるので、バイモルフ８の局部に圧力が
かかり過ぎて損傷してしまうことはない。 In this case, the fragile ceramic bimorph 8
Although the upper and lower surfaces are pressed by the weight 9 and the press plate 11 by tightening the fixing tool 12,
This tightening force is applied uniformly over the entire area of the upper and lower surfaces of the bimorph 8 due to the buffering effect of the insulating material 13, so that the bimorph 8 will not be damaged due to excessive pressure being applied to local parts. .
また上述の締付力がバイモルフ８表面に均一に
かかる限り、図示例の如く錘９に浅溝１０を設け
なければならないと云うことはなく、例えばバイ
モルフ８と同一厚さのスペーサーを錘９と押え板
１１との間に介在させ、このスペーサー部分で固
着具１２により連結する構成としてもよい。 Furthermore, as long as the above-mentioned tightening force is uniformly applied to the surface of the bimorph 8, it is not necessary to provide the shallow groove 10 in the weight 9 as in the illustrated example. It may also be configured to be interposed between the holding plate 11 and connected by a fixing member 12 at this spacer portion.
本考案に係る変換器は、以上述べたような構成
となつている。 The converter according to the present invention has the configuration described above.
従つて負荷重量としての錘は、所定の絶縁、通
電を達成しながらもバイモルフの中央部に確実に
固着されることになり、所定の衝撃を受けたバイ
モルフは、錘の作用により振動感度を増しながら
も極めて適正に機能することが出来、優れて有効
なものである。 Therefore, the weight as a load is securely fixed to the center of the bimorph while achieving the specified insulation and conduction, and the bimorph, which receives a specified impact, increases its vibration sensitivity due to the action of the weight. However, it is able to function extremely properly and is excellent and effective.
第１図は本考案に係る変換器の平面図、第２図
は同じく中央縦断面図、第３図はバイモルフと錘
との組み付き状態を示す正面図、第４図は第３図
の要部拡大図である。
８……バイモルフ、９……錘、１１……押え
板、１２……固着具。
Fig. 1 is a plan view of the transducer according to the present invention, Fig. 2 is a central vertical sectional view, Fig. 3 is a front view showing the assembled state of the bimorph and the weight, and Fig. 4 is the main part of Fig. 3. It is an enlarged view. 8...bimorph, 9...weight, 11...presser plate, 12...fixing tool.
Claims (1)
としての錘９を前記バイモルフ８に直交して固着
するバイモルフ型振動−電気変換器にあつて、 上記バイモルフ８を、棒状の上記錘９と押え板
１１との間で挟持し、更に錘９と押え板１１の何
れか一方とバイモルフ８との間に緩衝作用のある
絶縁材１３を配して成るバイモルフ型振動−電気
変換器。[Claims for Utility Model Registration] Regarding a bimorph-type vibration-electrical converter in which a weight 9 as a load mass is fixed to the center of a rectangular plate-shaped bimorph 8 orthogonally to the bimorph 8, the above-mentioned bimorph 8 is , a bimorph type vibration comprising a rod-shaped weight 9 and a presser plate 11 held between each other, and an insulating material 13 having a buffering effect arranged between either one of the weight 9 or the presser plate 11 and the bimorph 8. - Electrical converters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17069079U JPS6136904Y2 (en) | 1979-12-10 | 1979-12-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17069079U JPS6136904Y2 (en) | 1979-12-10 | 1979-12-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5688128U JPS5688128U (en) | 1981-07-14 |
| JPS6136904Y2 true JPS6136904Y2 (en) | 1986-10-25 |
Family
ID=29681527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17069079U Expired JPS6136904Y2 (en) | 1979-12-10 | 1979-12-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6136904Y2 (en) |
-
1979
- 1979-12-10 JP JP17069079U patent/JPS6136904Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5688128U (en) | 1981-07-14 |
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