JPH09116250A - Piezoelectric transformer retaining member - Google Patents
Piezoelectric transformer retaining memberInfo
- Publication number
- JPH09116250A JPH09116250A JP7275684A JP27568495A JPH09116250A JP H09116250 A JPH09116250 A JP H09116250A JP 7275684 A JP7275684 A JP 7275684A JP 27568495 A JP27568495 A JP 27568495A JP H09116250 A JPH09116250 A JP H09116250A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric transformer
- frame
- piezoelectric
- shaped holder
- support
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/301—Assembling printed circuits with electric components, e.g. with resistor by means of a mounting structure
Landscapes
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複写機のトナー帯
電用などに用いられる高電圧ＤＣ／ＤＣコンバータや液
晶バックライト用インバータなどに用いられるＤＣ／Ａ
Ｃインバータに利用される圧電振動子の機械振動を利用
した圧電トランスを支持する圧電トランス支持装置に属
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high voltage DC / DC converter used for toner charging of a copying machine, a DC / A used for a liquid crystal backlight inverter, and the like.
It belongs to a piezoelectric transformer support device that supports a piezoelectric transformer that uses mechanical vibration of a piezoelectric vibrator used in a C inverter.
【０００２】[0002]
【従来の技術】図４は圧電セラミックス矩形板の長さ方
向の１波長共振モードで振動し、この圧電セラミックス
矩形板の長手方向両端面から圧電セラミックス矩形板の
４分の１の長さの位置に振動の節が存在する圧電トラン
スの構造の一例を示す斜視図である。2. Description of the Related Art FIG. 4 shows a piezoelectric ceramic rectangular plate vibrating in a one-wavelength resonance mode in a longitudinal direction, and a position at a length of a quarter of the piezoelectric ceramic rectangular plate from both longitudinal end faces of the piezoelectric ceramic rectangular plate. FIG. 4 is a perspective view showing an example of the structure of a piezoelectric transformer in which a vibration node is present.
【０００３】図４（ａ）において、圧電セラミックス矩
形板１２の長手方向一端面からこの圧電セラミックス矩
形板１２の長さ方向のおよそ２分の１の領域の略全面
に、圧電セラミックス矩形板１２の厚さ方向で対向する
第１の対向電極１３，１４を形成し、残りの２分の１の
領域の両側面に圧電セラミックス矩形板１２の幅方向で
対向する第２の対向電極１５，１６を形成し、圧電セラ
ミックス矩形板１２の長手方向一端面から圧電セラミッ
クス矩形板１２の長さのおよそ４分の１の分だけ隔てた
部位の両側面に、圧電セラミックス矩形板１２の幅方向
で対向する第３の対向電極１７，１８が形成されてい
る。In FIG. 4 (a), the piezoelectric ceramic rectangular plate 12 is provided on substantially the entire area of one half of the length of the piezoelectric ceramic rectangular plate 12 from one end face in the longitudinal direction of the piezoelectric ceramic rectangular plate 12. First counter electrodes 13 and 14 facing each other in the thickness direction are formed, and second counter electrodes 15 and 16 facing each other in the width direction of the piezoelectric ceramic rectangular plate 12 are formed on both side surfaces of the remaining half area. In the width direction of the piezoelectric ceramic rectangular plate 12, the two side surfaces of the piezoelectric ceramic rectangular plate 12 separated from the one end surface in the longitudinal direction of the piezoelectric ceramic rectangular plate 12 by about a quarter of the length of the piezoelectric ceramic rectangular plate 12 are formed. Third counter electrodes 17 and 18 are formed.
【０００４】図４（ａ）に示す第３の対向電極の一方の
電極１７と第１の対向電極の一方の電極１３、並びに第
３の対向電極のもう一方の電極１８と第１の対向電極の
もう一方の電極１４を、図４（ｂ）に示すように、電気
的に接続して、それぞれ駆動電極１００，１０１とす
る。駆動電極１００，１０１及び第２の対向電極１５，
１６には、それぞれリード線１０２，１０３，１０４，
１０５が半田付けされている。One electrode 17 of the third counter electrode and one electrode 13 of the first counter electrode shown in FIG. 4A, and the other electrode 18 of the third counter electrode and the first counter electrode. The other electrode 14 is electrically connected to drive electrodes 100 and 101, respectively, as shown in FIG. Drive electrodes 100, 101 and second counter electrode 15,
16 are lead wires 102, 103, 104,
105 is soldered.
【０００５】図４（ｂ）に示す圧電セラミックス矩形板
１２は、その長さ方向のおよそ２分の１の領域で駆動電
極１００，１０１を用いてその厚さ方向に分極され、残
りの２分の１の領域では第２の対向電極１５，１６を用
いてその幅方向に分極されている。この分極方向を矢印
で示す。The piezoelectric ceramic rectangular plate 12 shown in FIG. 4 (b) is polarized in its thickness direction by using the drive electrodes 100 and 101 in a region of about ½ of its length, and the remaining two halves. In the area (1), the second counter electrodes 15 and 16 are used for polarization in the width direction. This polarization direction is indicated by an arrow.
【０００６】図４（ｂ）において、駆動電極１００，１
０１に圧電セラミックス矩形板１２の１波長共振モード
の共振周波数に略等しい周波数の電圧を印加すると、圧
電セラミックス矩形板１２は長さ方向に振動する。この
時、第２の対向電極１５−１６間には、圧電横効果によ
り高圧出力を発生する。このようにして圧電トランス１
１を構成することができる。In FIG. 4B, the drive electrodes 100, 1
When a voltage having a frequency substantially equal to the resonance frequency of the one-wavelength resonance mode of the piezoelectric ceramic rectangular plate 12 is applied to 01, the piezoelectric ceramic rectangular plate 12 vibrates in the longitudinal direction. At this time, a high voltage output is generated between the second opposing electrodes 15-16 by the piezoelectric lateral effect. In this way, the piezoelectric transformer 1
1 can be configured.
【０００７】図５は圧電トランスの動作原理説明図であ
り、（ａ）は圧電トランスの側面図、（ｂ）は圧電セラ
ミックス矩形板が長さ方向振動の１波長共振モードで振
動している場合の変位分布図、（ｃ）はその時の歪み分
布を示している。図５（ａ）において、駆動電極１０
０，１０１を１次側として駆動電極１００−１０１間に
圧電セラミックス矩形板１２の長さ方向振動の１波長共
振モードの共振周波数に等しい周波数の電圧を印加する
と、圧電セラミックス矩形板１２は、図５（ｂ）及び図
５（ｃ）に示すように振動し、第２の対向電極１５−１
６間には圧電効果により高電圧を発生する。また、図５
（ｂ）の変位分布図に示すように、圧電セラミックス矩
形板１２が長さ方向振動の１波長共振モードで振動して
いる場合、振動の節は、圧電セラミックス矩形板１２の
長手方向両端面からそれぞれ圧電セラミックス矩形板１
２の長さの４分の１の位置１０６，１０７を通り圧電セ
ラミックス矩形板１２の長手方向端面と平行な直線上に
存在し、これらの直線上のどの位置でも圧電トランス１
１を支持することが可能である。5A and 5B are explanatory views of the operation principle of the piezoelectric transformer. FIG. 5A is a side view of the piezoelectric transformer, and FIG. 5B is a case where the piezoelectric ceramic rectangular plate vibrates in a one-wavelength resonance mode of longitudinal vibration. (C) shows the strain distribution at that time. In FIG. 5A, the drive electrode 10
When a voltage having a frequency equal to the resonance frequency of the one-wavelength resonance mode of longitudinal vibration of the piezoelectric ceramic rectangular plate 12 is applied between the drive electrodes 100-101 with 0 and 101 as the primary side, the piezoelectric ceramic rectangular plate 12 is 5 (b) and FIG. 5 (c), the second counter electrode 15-1 vibrates as shown in FIG.
A high voltage is generated between 6 by the piezoelectric effect. FIG.
As shown in the displacement distribution diagram of (b), when the piezoelectric ceramic rectangular plate 12 is vibrating in the one-wavelength resonance mode of longitudinal vibration, the nodes of vibration are from both end faces in the longitudinal direction of the piezoelectric ceramic rectangular plate 12. Piezoelectric ceramic rectangular plate 1
The piezoelectric transformer 1 is located on a straight line parallel to the end face in the longitudinal direction of the piezoelectric ceramic rectangular plate 12 and passes through the positions 106 and 107 which are ¼ of the length of the piezoelectric transformer 1 at any position on these straight lines.
It is possible to support 1.
【０００８】図６は従来の圧電トランス支持装置の一例
の要部を示し、（ａ）は支持具の斜視図、（ｂ）は
（ａ）に示す支持具の圧電トランスに対する装着状態を
示す斜視図である。図６（ａ）に示すように、従来の圧
電トランス支持装置における支持具６は、柔らかいゴム
質の材料を使用してコの字型に形成され、この支持具６
は、図６（ｂ）に示すように、それぞれ独立して圧電ト
ランスの振動の節の近傍部分を圧電トランス１１の厚さ
方向で挟み込むようにしてシリコーン接着剤等で固定し
てある。FIG. 6 shows an essential part of an example of a conventional piezoelectric transformer supporting device, (a) is a perspective view of the supporting member, and (b) is a perspective view showing a mounting state of the supporting member shown in (a) to the piezoelectric transformer. It is a figure. As shown in FIG. 6A, the supporting member 6 in the conventional piezoelectric transformer supporting device is formed in a U shape by using a soft rubber material.
As shown in FIG. 6 (b), the portions near the vibration nodes of the piezoelectric transformer are independently sandwiched in the thickness direction of the piezoelectric transformer 11 and fixed with a silicone adhesive or the like.
【０００９】[0009]
【発明が解決しようとする課題】高電圧ＤＣ／ＤＣコン
バータや液晶バックライト用インバータを使用した機
器、装置等は、小型化、薄型化の傾向にあり、高電圧Ｄ
Ｃ／ＤＣコンバータや液晶バックライト用インバータも
小型化、低背化の要求がある。There is a tendency for downsizing and thinning of devices and devices using a high-voltage DC / DC converter and an inverter for a liquid crystal backlight.
C / DC converters and liquid crystal backlight inverters are also required to be smaller and have a lower profile.
【００１０】しかし、従来の支持構造では、１つの圧電
トランスに対して支持具が４つ必要であり、それぞれを
圧電トランスに固定しなければならないことや、回路基
板への実装時に、支持具を固定した圧電トランスを保護
用パッケージに組み込んだ後に、保護用パッケージごと
回路基板に固定し、リード線を直接回路基板に接続しな
ければならないため非常に作業性が悪いことに加え、支
持具を含めた圧電トランスのトータル厚みが、支持具の
高さによって制限されることから、低背化が困難であっ
た。However, in the conventional supporting structure, four supporting members are required for one piezoelectric transformer, and each supporting member has to be fixed to the piezoelectric transformer, and the supporting members need to be fixed when mounted on the circuit board. After mounting the fixed piezoelectric transformer in the protective package, the protective package must be fixed to the circuit board, and the lead wires must be directly connected to the circuit board, which is extremely inconvenient in workability and includes the support. Moreover, since the total thickness of the piezoelectric transformer is limited by the height of the support, it is difficult to reduce the height.
【００１１】また、リード線接続時におけるリード線の
引っ張りすぎによる断線、或は引っ張り不足で生じるリ
ード線のたるみによるリード線と回路基板のショートな
ど信頼性の面でも問題があった。Further, there is a problem in reliability such as disconnection due to excessive pulling of the lead wire at the time of connecting the lead wire or short circuit between the lead wire and the circuit board due to slack of the lead wire caused by insufficient pulling.
【００１２】更に、本来、支持具は、圧電トランスの振
動の節の位置に固定しなければならないが、圧電トラン
スの振動の節の位置には、リード線が半田付けされてい
るため、従来の圧電トランス支持装置では、支持具を圧
電トランスの振動の節からずらして固定しなければなら
ず、振動子特性の劣化を招いていた。Further, originally, the support must be fixed at the position of the vibration node of the piezoelectric transformer, but since the lead wire is soldered at the position of the vibration node of the piezoelectric transformer, the conventional method is used. In the piezoelectric transformer support device, the support tool has to be fixed while being displaced from the vibration node of the piezoelectric transformer, which causes deterioration of the vibrator characteristics.
【００１３】それ故に、本発明の課題は、上述した従来
の圧電トランス支持装置の欠点を除去し、圧電トランス
の低背化を可能とし、また、圧電トランスの信頼性及び
圧電トランスの実装作業性を向上させることが可能であ
り、更に、振動子特性の劣化を防止することが可能な圧
電トランス支持装置を提供することにある。Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks of the conventional piezoelectric transformer supporting device, to make the height of the piezoelectric transformer low, and to improve the reliability of the piezoelectric transformer and the workability of mounting the piezoelectric transformer. It is an object of the present invention to provide a piezoelectric transformer supporting device capable of improving the vibration resistance and preventing the deterioration of the vibrator characteristics.
【００１４】[0014]
【課題を解決するための手段】本発明のよれば、圧電セ
ラミックス矩形板の側面に電極を設けてある圧電トラン
スを支持する圧電トランス支持装置において、前記圧電
トランスよりもひとまわり大きな枠状ホルダと、該枠状
ホルダ内に配置され、前記圧電トランスをその振動の節
の部分で支持する複数対の支持具とを具備し、前記支持
具は、弾性及び導電性を有する材料で構成され、対と成
るもの同士で前記圧電トランスをその幅方向で挟持する
ように支持すると共に前記電極と接触して電気的に接続
され、更に、前記枠状ホルダの外側へ突出する基板実装
用端子を有していることを特徴とする圧電トランス支持
装置が得られる。According to the present invention, in a piezoelectric transformer supporting device for supporting a piezoelectric transformer having electrodes on the side surface of a piezoelectric ceramic rectangular plate, a frame-shaped holder slightly larger than the piezoelectric transformer is provided. A plurality of pairs of supporting members arranged in the frame-shaped holder and supporting the piezoelectric transformer at the nodes of vibration thereof, the supporting members being made of a material having elasticity and conductivity. The piezoelectric transformer is supported so as to be sandwiched in the width direction thereof, and is in electrical contact with the electrodes, and further has a board mounting terminal projecting to the outside of the frame-shaped holder. A piezoelectric transformer support device is obtained.
【００１５】また、本発明によれば、前記枠状ホルダの
底面に絶縁シートを接着したことを特徴とする圧電トラ
ンス支持装置が得られる。Further, according to the present invention, there is provided a piezoelectric transformer supporting device characterized in that an insulating sheet is adhered to the bottom surface of the frame-shaped holder.
【００１６】更に、本発明によれば、前記圧電トランス
と前記枠状ホルダとの間の隙間に柔軟性シリコーンを注
入したことを特徴とする圧電トランス支持装置が得られ
る。Further, according to the present invention, there is obtained a piezoelectric transformer supporting device characterized in that flexible silicone is injected into a gap between the piezoelectric transformer and the frame-shaped holder.
【００１７】[0017]
【発明の実施の形態】以下に、本発明について図面を用
いて詳しく説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings.
【００１８】図１は本発明の第１の実施形態による圧電
トランス支持装置の構成略図である。FIG. 1 is a schematic configuration diagram of a piezoelectric transformer supporting device according to a first embodiment of the present invention.
【００１９】図１を参照して、本実施形態の圧電トラン
ス支持装置１は、枠状ホルダ２と、２対の支持具３とか
ら成る。枠状ホルダ２は、圧電トランス１１よりひとま
わり大きく、その内側には、支持具３を配置するための
凹部２０が形成されている。この凹部２０は、圧電トラ
ンス１１の振動の節に対応する位置に形成されている。
また、凹部２０の一端には、後述する支持具３の基板実
装用端子３０を枠状ホルダ２の外へ導き出すための溝２
１が形成されている。支持具３は、弾性及び導電性を有
する材料で構成されており、その平面形状が略円弧状に
成っている。各支持具３の一端には、基板実装用端子３
０が連接されている。支持具３は、凹部２０内に配置さ
れ、その基板実装用端子３０は、枠状ホルダ２の溝２１
を通じて、枠状ホルダ２の外側に導き出されている。こ
のように枠状ホルダ２の凹部２０内に配置された支持具
３は、対となるもの同士（圧電トランス１１の幅方向に
沿って並ぶもの同士）で、圧電トランス１１をその幅方
向で挟持するように弾性的に支持すると共に、圧電トラ
ンス１１の側面に延在する電極１００，１０１，１５，
１６とそれぞれ接触してこれらの電極に電気的に接続さ
れる。このように、支持具３は、板バネ状電極金具を兼
ねている。Referring to FIG. 1, the piezoelectric transformer supporting device 1 of this embodiment comprises a frame-shaped holder 2 and two pairs of supporting members 3. The frame-shaped holder 2 is slightly larger than the piezoelectric transformer 11, and a recess 20 for arranging the support 3 is formed inside thereof. The recess 20 is formed at a position corresponding to a node of vibration of the piezoelectric transformer 11.
Further, at one end of the concave portion 20, a groove 2 for guiding a board mounting terminal 30 of the support 3 described later to the outside of the frame-shaped holder 2.
1 is formed. The support tool 3 is made of a material having elasticity and conductivity, and has a substantially arcuate planar shape. At one end of each support 3, the board mounting terminal 3 is provided.
0 is connected. The support 3 is arranged in the recess 20, and the board mounting terminal 30 is provided in the groove 21 of the frame-shaped holder 2.
Through to the outside of the frame-shaped holder 2. As described above, the support tools 3 arranged in the recess 20 of the frame-shaped holder 2 are paired with each other (arranged along the width direction of the piezoelectric transformer 11) and sandwich the piezoelectric transformer 11 in the width direction. The electrodes 100, 101, 15, which are elastically supported so as to extend to the side surface of the piezoelectric transformer 11,
16 are respectively contacted and electrically connected to these electrodes. In this way, the support tool 3 also serves as a plate spring-shaped electrode fitting.
【００２０】上述のように、板バネ状電極金具を兼ねた
支持具３を枠状ホルダ２の内側から圧電トランス１１側
へ突起するように配置した構造であるため、使用に際し
ては、圧電トランス１１を枠状ホルダ２内に嵌め込むだ
けで、圧電トランス１１の入出力電極１００，１０１，
１５，１６と支持具（板バネ状電極金具）２が接触す
る。従って、支持具２に設けられた基板実装用端子３０
を回路基板８に半田付けするだけで、圧電トランス１１
の回路基板８への固定と各入出力端子１００，１０１，
１５，１６と回路基板８との電気的な接続が可能となる
ため、作業性が向上すると共に、リード線が不要となる
ので、従来のようなリード線と回路基板とのショートの
問題が解決され、信頼性が向上する。As described above, since the supporting member 3 also serving as the plate spring electrode fitting is arranged so as to project from the inside of the frame-shaped holder 2 to the piezoelectric transformer 11 side, the piezoelectric transformer 11 is used at the time of use. By simply fitting the above into the frame-shaped holder 2, the input / output electrodes 100, 101,
The support members (plate spring electrode metal fittings) 2 and 15 and 16 contact each other. Therefore, the board mounting terminals 30 provided on the support 2
Just solder the circuit board 8 to the piezoelectric transformer 11
Is fixed to the circuit board 8 and each input / output terminal 100, 101,
Since the electrical connection between 15 and 16 and the circuit board 8 is possible, the workability is improved, and the lead wire is not required, so that the conventional problem of short circuit between the lead wire and the circuit board is solved. And reliability is improved.
【００２１】また、圧電トランス１１の支持具３による
支持は、圧電トランス１１の幅方向での支持であること
から、支持具３を含めたトータル厚みが従来よりも薄く
なり、圧電トランスの低背化が可能であることに加え、
圧電トランス１１の振動の節の部分を支持具２により弾
性支持する構造であるため、支持による振動子の特性劣
化を防止することができる。Further, since the support of the piezoelectric transformer 11 by the support 3 is the support in the width direction of the piezoelectric transformer 11, the total thickness of the support including the support 3 is thinner than the conventional one, and the piezoelectric transformer 11 has a low profile. In addition to being possible to
Since the vibration node portion of the piezoelectric transformer 11 is elastically supported by the support tool 2, it is possible to prevent the characteristic deterioration of the vibrator due to the support.
【００２２】図２は本発明の第２の実施形態による圧電
トランス支持装置の構成略図である。図２を参照して、
本実施形態は、第１の実施形態と略同構成であるので、
構成が同じ部分については第１の実施形態と同じ参照番
号を付し、その説明を省略し、構成の異なる部分につい
てのみ説明する。本実施形態の場合、枠状ホルダ２の底
面（回路基板側面）に絶縁シート４を接着してある。こ
の絶縁シート４により、圧電トランス１１と回路基板８
との絶縁性が、より確実なものになると共に、絶縁シー
ト４としてテフロンシートのような表面の滑らかな材質
の物を使用すれば、圧電トランス１１と絶縁シート４と
が接触した場合でも、摩擦による特性劣化を防止するこ
とが可能である。FIG. 2 is a schematic configuration diagram of a piezoelectric transformer support device according to a second embodiment of the present invention. Referring to FIG.
Since this embodiment has substantially the same configuration as the first embodiment,
The same reference numerals as those of the first embodiment are attached to the portions having the same configurations, the description thereof is omitted, and only the portions having the different configurations will be described. In the case of this embodiment, the insulating sheet 4 is bonded to the bottom surface (side surface of the circuit board) of the frame-shaped holder 2. With the insulating sheet 4, the piezoelectric transformer 11 and the circuit board 8
If the insulating sheet 4 is made of a material having a smooth surface such as a Teflon sheet, the insulating sheet 4 has a more reliable insulating property. It is possible to prevent characteristic deterioration due to.
【００２３】図３は本発明の第３の実施形態による圧電
トランス支持装置の構成略図である。図３を参照して、
本実施形態は、第１及び第２の実施形態と略同構成であ
るので、構成が同じ部分については第１及び第２の実施
形態と同じ参照番号を付し、その説明を省略し、構成の
異なる部分についてのみ説明する。本実施形態の場合、
圧電トランス１１と枠状ホルダ２との間の隙間に柔軟性
シリコーン５を注入してある。このように、柔軟性シリ
コーン５を注入することとで、対衝撃性を向上させてあ
る。FIG. 3 is a schematic configuration diagram of a piezoelectric transformer support device according to a third embodiment of the present invention. Referring to FIG.
Since the present embodiment has substantially the same configuration as the first and second embodiments, parts having the same configurations are denoted by the same reference numerals as those of the first and second embodiments, and the description thereof will be omitted. Only different parts will be described. In the case of this embodiment,
Flexible silicone 5 is injected into a gap between the piezoelectric transformer 11 and the frame-shaped holder 2. Thus, the impact resistance is improved by injecting the flexible silicone 5.
【００２４】[0024]
【発明の効果】以上に示したように、本発明による圧電
トランスの支持装置は、圧電トランスよりひとまわり大
きな枠状ホルダの内側の圧電トランスの振動の節の位置
に対応する位置に、基板実装用端子を有し、板バネ状電
極金具を兼ねる支持具を、基板実装用端子が枠状ホルダ
の外側へ突出するように配置した構造であるため、枠状
ホルダに圧電トランスを嵌め込むだけで、板バネ状電極
金具を兼ねる支持具と圧電トランスの入出力電極とが電
気的に接続される。従って、この支持具に設けられた基
板実装用端子を回路基板に半田付けするだけで、圧電ト
ランスの回路基板への固定と各入出力端子と回路基板と
の電気的な接続が可能となるため、作業性が向上すると
共に、リード線が不要となり、リード線と回路基板との
ショートの問題も解決され、信頼性が向上する。As described above, the piezoelectric transformer supporting apparatus according to the present invention is mounted on the board at a position corresponding to the vibration node of the piezoelectric transformer inside the frame-shaped holder which is slightly larger than the piezoelectric transformer. Since the structure is such that the board mounting terminal has a support terminal that also functions as a plate spring-like electrode fitting so that the board mounting terminal projects to the outside of the frame-shaped holder, you can simply fit the piezoelectric transformer into the frame-shaped holder. A support that also serves as a plate spring electrode fitting and the input / output electrodes of the piezoelectric transformer are electrically connected. Therefore, it is possible to fix the piezoelectric transformer to the circuit board and electrically connect each input / output terminal to the circuit board by simply soldering the board mounting terminals provided on the support to the circuit board. The workability is improved, the lead wire is not necessary, the problem of short circuit between the lead wire and the circuit board is solved, and the reliability is improved.
【００２５】また、本発明によれば、圧電トランスの支
持は、圧電トランスの幅方向からの支持であることか
ら、支持を含めたトータル厚みが最小となり、圧電トラ
ンスの低背化が可能であることに加え、弾性支持構造で
且つ圧電セラミックス矩形板の振動の節の所で正確に支
持しているので、支持による特性劣化を防止することが
できる。Further, according to the present invention, since the piezoelectric transformer is supported in the width direction of the piezoelectric transformer, the total thickness including the support is minimized, and the height of the piezoelectric transformer can be reduced. In addition, the elastic support structure and the accurate support at the vibration node of the piezoelectric ceramic rectangular plate can prevent characteristic deterioration due to the support.
【００２６】また、本発明の圧電トランス支持装置は、
枠状ホルダの底面に絶縁シートを接着することにより、
圧電トランスと回路基板との絶縁性が、より確実なもの
になり信頼性が向上すると共に、テフロンシートのよう
な表面の滑らかな摩擦係数の低い材質の物を使用すれ
ば、圧電トランスと絶縁シートが接触した場合でも、摩
擦による特性劣化を防止することが可能である。Further, the piezoelectric transformer supporting device of the present invention is
By bonding the insulating sheet to the bottom of the frame-shaped holder,
The insulation between the piezoelectric transformer and the circuit board becomes more reliable and reliability is improved, and if a material with a smooth surface and a low friction coefficient such as Teflon sheet is used, the piezoelectric transformer and the insulation sheet It is possible to prevent characteristic deterioration due to friction even when the two come into contact with each other.
【００２７】更に、本発明の圧電トランス支持装置は、
圧電トランスと枠状ホルダの隙間に柔軟性シリコーンを
注入することで、対衝撃性を向上させることができる。Further, the piezoelectric transformer supporting device of the present invention is
The impact resistance can be improved by injecting flexible silicone into the gap between the piezoelectric transformer and the frame-shaped holder.
【図１】本発明の第１の実施形態による圧電トランス支
持装置の構成略図である。FIG. 1 is a schematic configuration diagram of a piezoelectric transformer support device according to a first embodiment of the present invention.
【図２】本発明の第２の実施形態による圧電トランス支
持装置の構成略図である。FIG. 2 is a schematic configuration diagram of a piezoelectric transformer supporting device according to a second embodiment of the present invention.
【図３】本発明の第３の実施形態による圧電トランス支
持装置の構成略図である。FIG. 3 is a schematic configuration diagram of a piezoelectric transformer support device according to a third embodiment of the present invention.
【図４】圧電トランスの一例を示し、（ａ）は第１の対
向電極と第３の対向電極とを接続する前の状態の斜視
図、（ｂ）は第１の対向電極と第３の対向電極とを接続
した状態の斜視図である。FIG. 4 shows an example of a piezoelectric transformer, (a) is a perspective view of a state before connecting the first counter electrode and the third counter electrode, and (b) is a first counter electrode and the third counter electrode. It is a perspective view of the state where the counter electrode was connected.
【図５】圧電トランスの動作原理説明図である。FIG. 5 is a diagram illustrating the operating principle of the piezoelectric transformer.
【図６】従来の圧電トランス支持装置の要部を示し、
（ａ）は支持具の斜視図、（ｂ）は（ａ）に示す支持具
を圧電トランスに装着した状態の斜視図である。FIG. 6 shows a main part of a conventional piezoelectric transformer supporting device,
(A) is a perspective view of a support tool, (b) is a perspective view of a state where the support tool shown in (a) is mounted on a piezoelectric transformer.
１ 圧電トランス支持装置 ２ 枠状ホルダ ３ 支持具 ４ 絶縁シート ５ 柔軟シリコーン ８ 回路基板 １１ 圧電トランス １２ 圧電セラミックス矩形板 １５ 第２の対向電極 １６ 第２の対向電極 ２０ 凹部 ２１ 溝 ３０ 基板実装用端子 １００ 駆動電極 １０１ 駆動電極 DESCRIPTION OF SYMBOLS 1 Piezoelectric transformer supporting device 2 Frame-shaped holder 3 Supporting tool 4 Insulating sheet 5 Flexible silicone 8 Circuit board 11 Piezoelectric transformer 12 Piezoelectric ceramic rectangular plate 15 Second counter electrode 16 Second counter electrode 20 Recess 21 Groove 30 Board mounting terminal 100 drive electrode 101 drive electrode
Claims (3)
設けてある圧電トランスを支持する圧電トランス支持装
置において、前記圧電トランスよりもひとまわり大きな
枠状ホルダと、該枠状ホルダ内に配置され、前記圧電ト
ランスをその振動の節の部分で支持する複数対の支持具
とを具備し、前記支持具は、弾性及び導電性を有する材
料で構成され、対と成るもの同士で前記圧電トランスを
その幅方向で挟持するように支持すると共に前記電極と
接触して電気的に接続され、更に、前記枠状ホルダの外
側へ突出する基板実装用端子を有していることを特徴と
する圧電トランス支持装置。1. A piezoelectric transformer supporting device for supporting a piezoelectric transformer in which electrodes are provided on side surfaces of a piezoelectric ceramic rectangular plate, and a frame-shaped holder which is slightly larger than the piezoelectric transformer, and arranged in the frame-shaped holder. A plurality of pairs of supporting members for supporting the piezoelectric transformer at the nodes of vibration thereof, the supporting members being made of a material having elasticity and conductivity, and forming a pair of the piezoelectric transformer. A piezoelectric transformer support characterized in that it has a board mounting terminal that is supported so as to be sandwiched in the width direction, is in contact with the electrode and is electrically connected, and further projects to the outside of the frame-shaped holder. apparatus.
着したことを特徴とする請求項１記載の圧電トランス支
持装置。2. The piezoelectric transformer supporting device according to claim 1, wherein an insulating sheet is bonded to the bottom surface of the frame-shaped holder.
間の隙間に柔軟性シリコーンを注入したことを特徴とす
る請求項１又は請求項２記載の圧電トランス支持装置。3. The piezoelectric transformer support device according to claim 1, wherein flexible silicone is injected into a gap between the piezoelectric transformer and the frame-shaped holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7275684A JPH09116250A (en) | 1995-10-24 | 1995-10-24 | Piezoelectric transformer retaining member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7275684A JPH09116250A (en) | 1995-10-24 | 1995-10-24 | Piezoelectric transformer retaining member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09116250A true JPH09116250A (en) | 1997-05-02 |
Family
ID=17558918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7275684A Pending JPH09116250A (en) | 1995-10-24 | 1995-10-24 | Piezoelectric transformer retaining member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09116250A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999019916A1 (en) * | 1997-10-15 | 1999-04-22 | Taiheiyo Cement Corporation | Piezoelectric transformer element and method of mounting it in a housing |
| JP2001267652A (en) * | 2000-03-17 | 2001-09-28 | Tokin Corp | Piezoelectric transformer device |
| JP2001267651A (en) * | 2000-03-17 | 2001-09-28 | Tokin Corp | Piezoelectric transformer device |
| JP2009170784A (en) * | 2008-01-18 | 2009-07-30 | Nec Tokin Corp | Piezoelectric transformer |
| WO2010030740A1 (en) * | 2008-09-11 | 2010-03-18 | Analog Devices, Inc. | Piezoelectric transducers and intertial sensors using piezoelectric transducers |
| US8616056B2 (en) | 2010-11-05 | 2013-12-31 | Analog Devices, Inc. | BAW gyroscope with bottom electrode |
| US8631700B2 (en) | 2010-11-05 | 2014-01-21 | Analog Devices, Inc. | Resonating sensor with mechanical constraints |
| US8919199B2 (en) | 2010-12-01 | 2014-12-30 | Analog Devices, Inc. | Apparatus and method for anchoring electrodes in MEMS devices |
| US9091544B2 (en) | 2010-11-05 | 2015-07-28 | Analog Devices, Inc. | XY-axis shell-type gyroscopes with reduced cross-talk sensitivity and/or mode matching |
| US9709595B2 (en) | 2013-11-14 | 2017-07-18 | Analog Devices, Inc. | Method and apparatus for detecting linear and rotational movement |
| US9869552B2 (en) | 2015-03-20 | 2018-01-16 | Analog Devices, Inc. | Gyroscope that compensates for fluctuations in sensitivity |
| US9917243B2 (en) | 2014-10-16 | 2018-03-13 | Analog Devices, Inc. | Method of fabricating piezoelectric MEMS devices |
| US10746548B2 (en) | 2014-11-04 | 2020-08-18 | Analog Devices, Inc. | Ring gyroscope structural features |
| US11656077B2 (en) | 2019-01-31 | 2023-05-23 | Analog Devices, Inc. | Pseudo-extensional mode MEMS ring gyroscope |
-
1995
- 1995-10-24 JP JP7275684A patent/JPH09116250A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999019916A1 (en) * | 1997-10-15 | 1999-04-22 | Taiheiyo Cement Corporation | Piezoelectric transformer element and method of mounting it in a housing |
| US6342752B1 (en) | 1997-10-15 | 2002-01-29 | Taiheiyo Cement Corporation | Piezoelectric transformer element and method of mounting it in a housing |
| JP2001267652A (en) * | 2000-03-17 | 2001-09-28 | Tokin Corp | Piezoelectric transformer device |
| JP2001267651A (en) * | 2000-03-17 | 2001-09-28 | Tokin Corp | Piezoelectric transformer device |
| JP2009170784A (en) * | 2008-01-18 | 2009-07-30 | Nec Tokin Corp | Piezoelectric transformer |
| WO2010030740A1 (en) * | 2008-09-11 | 2010-03-18 | Analog Devices, Inc. | Piezoelectric transducers and intertial sensors using piezoelectric transducers |
| US8408060B2 (en) | 2008-09-11 | 2013-04-02 | Analog Devices, Inc. | Piezoelectric transducers and inertial sensors using piezoelectric transducers |
| US8631700B2 (en) | 2010-11-05 | 2014-01-21 | Analog Devices, Inc. | Resonating sensor with mechanical constraints |
| US8616056B2 (en) | 2010-11-05 | 2013-12-31 | Analog Devices, Inc. | BAW gyroscope with bottom electrode |
| US9091544B2 (en) | 2010-11-05 | 2015-07-28 | Analog Devices, Inc. | XY-axis shell-type gyroscopes with reduced cross-talk sensitivity and/or mode matching |
| US8919199B2 (en) | 2010-12-01 | 2014-12-30 | Analog Devices, Inc. | Apparatus and method for anchoring electrodes in MEMS devices |
| US9709595B2 (en) | 2013-11-14 | 2017-07-18 | Analog Devices, Inc. | Method and apparatus for detecting linear and rotational movement |
| US9917243B2 (en) | 2014-10-16 | 2018-03-13 | Analog Devices, Inc. | Method of fabricating piezoelectric MEMS devices |
| US10746548B2 (en) | 2014-11-04 | 2020-08-18 | Analog Devices, Inc. | Ring gyroscope structural features |
| US9869552B2 (en) | 2015-03-20 | 2018-01-16 | Analog Devices, Inc. | Gyroscope that compensates for fluctuations in sensitivity |
| US11656077B2 (en) | 2019-01-31 | 2023-05-23 | Analog Devices, Inc. | Pseudo-extensional mode MEMS ring gyroscope |
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