JPH06318747A - Piezoelectric transformer - Google Patents

Piezoelectric transformer

Info

Publication number
JPH06318747A
JPH06318747A JP5108170A JP10817093A JPH06318747A JP H06318747 A JPH06318747 A JP H06318747A JP 5108170 A JP5108170 A JP 5108170A JP 10817093 A JP10817093 A JP 10817093A JP H06318747 A JPH06318747 A JP H06318747A
Authority
JP
Japan
Prior art keywords
frame
piezoelectric transformer
transformer
supported
elastic body
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.)
Granted
Application number
JP5108170A
Other languages
Japanese (ja)
Other versions
JP3230330B2 (en
Inventor
Tetsuo Tanaka
哲郎 田中
Hiroyoshi Matsuura
宏嘉 松浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daishinku Corp
Original Assignee
Daishinku Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Daishinku Corp filed Critical Daishinku Corp
Priority to JP10817093A priority Critical patent/JP3230330B2/en
Publication of JPH06318747A publication Critical patent/JPH06318747A/en
Application granted granted Critical
Publication of JP3230330B2 publication Critical patent/JP3230330B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To facilitate surface mount of a piezoelectric transformer without deteriorating the performance of the transformer by a method wherein the tabular piezoelectric transformer is formed integrally with a frame-shaped structure in a state that it is supported via an elastic body in the vicinity of its node part in the inside of the structure and lead frames are formed integrally with the frame-shaped structure. CONSTITUTION:A frame body S for supporting a piezoelectric transformer T is constituted by forming integrally a rectangular frame 1 formed of a resin, such as a PPS and a liquid crystal polymer, with lead frames 2a to 2c arranged vertically to the longitudinal direction of this frame 1 and the transformer T is supported via an elastic body 4 in the vicinity of its node part in the inside of the frame body S. Pawls are respectively formed on point parts 1a and 1b, which are positioned on the frame 1, of he parts of these lead frames 2a and 2c and the transformer T is supported by these pawls from the side of its upper surface. Thereby, the transformer T is reliably supported, the performance of the transformer T is never deteriorated and a surface mount of the transformer T can be easily executed.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、圧電トランスを基板あ
るいはパッケージ等に搭載した圧電トランス装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piezoelectric transformer device having a piezoelectric transformer mounted on a substrate or a package.

【0002】[0002]

【従来の技術】従来の圧電トランス装置は、例えば、実
公昭59−30541に開示されているように、板状の
圧電セラミックスをその節点に沿った面で、ゴム製弾性
体等からなる角状リングによって支持する構造のもの
や、実公昭46−4040に開示されているように、絶
縁筐体内に板状の圧電セラミックが配設され、その圧電
トランスと筐体との間にはばね片が介され、そのばね片
がその筐体より突出して入出力電極端子とした構造のも
のがある。
2. Description of the Related Art In a conventional piezoelectric transformer device, for example, as disclosed in Japanese Utility Model Publication No. 59-30541, a plate-shaped piezoelectric ceramic is formed into a rectangular shape made of a rubber elastic body or the like on a surface along its node. As shown in Japanese Utility Model Publication No. 46-4040, a structure in which a plate-shaped piezoelectric ceramic is arranged in an insulating casing, and a spring piece is provided between the piezoelectric transformer and the casing. There is a structure in which the spring piece protrudes from the housing to serve as an input / output electrode terminal.

【0003】[0003]

【発明が解決しようとする課題】ところで、前者の従来
例では角状リングによってのみ支持された構造であるの
で、確実に安定させるためには、その角状リングの幅を
広く、また、高さも必要である。こうした場合、装置全
体の厚みが増し、薄型化ができない上、圧電トランス上
面は角状リングで覆われる面積が増し、圧電トランスか
らの放熱性が低下する問題がある。
By the way, in the former conventional example, since the structure is supported only by the angular ring, the width of the angular ring is wide and the height is high in order to ensure stability. is necessary. In such a case, there is a problem that the thickness of the entire device increases and it is not possible to reduce the thickness, and the area covered by the square ring on the upper surface of the piezoelectric transformer increases, so that the heat dissipation from the piezoelectric transformer decreases.

【0004】また、後者の従来例では圧電トランスを筐
体内に収容した構造であるため、筐体および、圧電トラ
ンスの厚みに加え、端子を配設するための厚みも加わ
り、前者の従来例に比べ、さらに装置全体の厚みが増
し、薄型化が難しい。さらに、圧電トランスから発生す
る熱を充分放熱できないといった問題もある。
Further, since the latter conventional example has a structure in which the piezoelectric transformer is housed in the housing, in addition to the thickness of the housing and the piezoelectric transformer, the thickness for arranging the terminals is added, and the former conventional example is added. In comparison, the overall thickness of the device increases, making it difficult to reduce the thickness. Further, there is a problem that the heat generated from the piezoelectric transformer cannot be sufficiently dissipated.

【0005】さらに、これらの構造では、回路基板への
取り付けにおいては、配線の数が多く、困難も生じる恐
れがある。また、多くの配線がなされている場合、基板
へ与える熱の影響も大きい問題もある。
Furthermore, in these structures, there are many wirings and difficulty may occur in mounting on the circuit board. Further, when many wirings are formed, there is also a problem that the effect of heat on the substrate is large.

【0006】本発明はこれらの問題点を鑑み、性能を劣
化させることなく、また、表面実装を容易とする構造と
する圧電トランス装置を提供することを目的とする。
In view of these problems, an object of the present invention is to provide a piezoelectric transformer device having a structure that does not deteriorate the performance and facilitates surface mounting.

【0007】[0007]

【課題を解決するための手段】本発明の目的を達成する
ために、本発明の圧電トランス装置は、枠状構造体の内
側に、板状の圧電トランスがその節点部近傍で弾性体を
介して支持された状態で相互に一体化されているととも
に、その枠状構造体には上記圧電トランス表面に形成さ
れている各電極と電気的に接続された複数のリードフレ
ームが一体形成されてなることによって特徴付けられて
いる。
In order to achieve the object of the present invention, in the piezoelectric transformer device of the present invention, a plate-shaped piezoelectric transformer is provided inside a frame-shaped structure with an elastic body in the vicinity of its node. Integrated with each other in a supported state, and a plurality of lead frames electrically connected to the respective electrodes formed on the surface of the piezoelectric transformer are integrally formed on the frame-shaped structure. It is characterized by

【0008】この枠状構造体とは、圧電トランスを支持
するために必要な枠によって構成されており、本発明で
は、リードフレームを一体形成するための枠、および、
圧電トランスをその節点部近傍で支持するための枠によ
ってなる。したがって、これらの枠は所定の間隔をおい
て形成されている。
The frame-shaped structure is composed of a frame necessary for supporting the piezoelectric transformer. In the present invention, a frame for integrally forming a lead frame, and
It is composed of a frame for supporting the piezoelectric transformer in the vicinity of its node. Therefore, these frames are formed at a predetermined interval.

【0009】[0009]

【作用】枠状構造体に一体化された弾性体により、節点
部近傍の支持は確実になり、また、わずかに生じる振動
も弾性体に吸収され、圧電トランスの機械的振動を阻害
しない。
The elastic body integrated with the frame-like structure ensures reliable support in the vicinity of the nodes, and even slight vibrations are absorbed by the elastic body so that mechanical vibrations of the piezoelectric transformer are not impeded.

【0010】また、その枠状構造体には複数のリードフ
レームが一体形成されているので、配線数を少なくする
ことができ、表面実装が容易となる。さらに、枠状構造
体によって支持されているので、圧電トランスからの放
熱性がよく、熱による性能の劣化がない。
Further, since a plurality of lead frames are integrally formed in the frame-shaped structure, the number of wirings can be reduced and the surface mounting becomes easy. Further, since it is supported by the frame-shaped structure, the heat dissipation from the piezoelectric transformer is good and the performance is not deteriorated by heat.

【0011】[0011]

【実施例】図1は本発明実施例の圧電トランス装置の構
造を説明する図である。(a)図はその平面図、(b)
はその正面図、(c)図はその底面図、(d)図は
(a)図におけるA−A断面図、(e)図はトランス固
定部の要部拡大図である。以下、図面に基づいて本発明
実施例を説明する。
FIG. 1 is a diagram for explaining the structure of a piezoelectric transformer device according to an embodiment of the present invention. (A) figure is the top view, (b)
Is a front view thereof, (c) is a bottom view thereof, (d) is a sectional view taken along line AA in (a), and (e) is an enlarged view of a main part of a transformer fixing portion. Embodiments of the present invention will be described below with reference to the drawings.

【0012】圧電トランスTを支持する枠体Sは、PP
Sや液晶ポリマ等の樹脂により形成された矩形のフレー
ム1と、このフレーム1の長手方向に垂直に配列された
リードフレーム2a,2b,2cとが一体形成されてい
る。このリードフレーム2a,2b,2cの先端は圧電
トランスTの下面内方に折れ曲がった構造となってい
る。この枠体Sの内側に、圧電トランスTがその節点部
近傍で弾性体4を介して支持されている。この弾性体4
はコの字型のシリコンゴムにより形成されている。ま
た、このリードフレーム2a,2c部分のフレーム1
は、それぞれ圧電トランスTの長手方向の側面に沿って
立ち上がり、その先端部分1a,1bは圧電トランスT
の上面側に接触した状態となっている。この先端部分1
a,1bには、(e)図に示すように、つめ1bが形成
されており、そのつめ1bにより圧電トランスTの上面
側からの支持がなされている。
The frame S that supports the piezoelectric transformer T is made of PP.
A rectangular frame 1 made of resin such as S or liquid crystal polymer and lead frames 2a, 2b, 2c arranged vertically in the longitudinal direction of the frame 1 are integrally formed. The tips of the lead frames 2a, 2b, 2c are bent inward on the lower surface of the piezoelectric transformer T. Inside the frame S, the piezoelectric transformer T is supported near the nodes via the elastic body 4. This elastic body 4
Is made of U-shaped silicon rubber. In addition, the frame 1 of the lead frames 2a and 2c
Respectively rise along the side surfaces of the piezoelectric transformer T in the longitudinal direction, and the tip portions 1a and 1b of the piezoelectric transformer T are
Is in contact with the upper surface side of the. This tip part 1
As shown in FIG. 6E, a pawl 1b is formed on each of a and 1b, and the pawl 1b supports the piezoelectric transformer T from the upper surface side.

【0013】なお、このリードフレーム2aの折れ曲が
りの方向はこのように内方に限ることなく、必要に応じ
て外方に折り曲げた構造にしてもよい。さらに、この装
置の配線は、入力側では入力電極Pin1 が接続端子5a
を介してリードフレーム2aに接続されており、また、
入力電極Pin2 はリードフレーム2bに接続されてい
る。さらに、出力側ではリードフレーム2cは接続端子
5bを介して出力電極Pout に接続されている。この時
用いられる導線3はこの圧電トランスTの振動を阻害し
ない程度のものが用いられており、このため性能の劣化
がない。
The bending direction of the lead frame 2a is not limited to the inward direction, but may be an outwardly bent structure as required. Further, the wiring of this device is such that the input electrode P in1 is connected to the connection terminal 5a on the input side.
Is connected to the lead frame 2a via
The input electrode P in2 is connected to the lead frame 2b. Further, on the output side, the lead frame 2c is connected to the output electrode P out via the connection terminal 5b. The conducting wire 3 used at this time is of a degree that does not hinder the vibration of the piezoelectric transformer T, so that the performance is not deteriorated.

【0014】さらに、圧電トランスTの固定部分の面積
は従来例に比べ小さいので、圧電トランスTの放熱効果
にも優れ、熱による性能の劣化もない。次に、本発明の
他の実施例の構造を図2および図3に示す。図2におい
て(a)図はその平面図、(b)図はその正面図、図3
において(a)図は図2(a)図におけるB−B断面
図、(b)図はC−C断面図、(c)図は中央で水平に
切った断面図、(d)図はD−D断面図、(e)図はE
−E断面図である。以下にこれらの図面に基づいて他の
実施例を説明する。
Further, since the area of the fixed portion of the piezoelectric transformer T is smaller than that of the conventional example, the heat dissipation effect of the piezoelectric transformer T is excellent and the performance is not deteriorated by heat. Next, the structure of another embodiment of the present invention is shown in FIGS. 2A is a plan view thereof, FIG. 2B is a front view thereof, and FIG.
2A is a cross-sectional view taken along line BB in FIG. 2A, FIG. 2B is a cross-sectional view taken along CC, FIG. 3C is a cross-sectional view cut horizontally at the center, and FIG. -D sectional view, (e) figure is E
It is a -E sectional view. Other embodiments will be described below with reference to these drawings.

【0015】圧電トランスTは、リードフレーム23
a,23b,23cが一体形成された筐体枠20に、そ
の圧電トランスTの節点部近傍でコの字型のシリコンゴ
ムよりなる弾性体22を介して固定されている。この節
点部近傍ではシリコンゴム接着剤により、密着して固定
されている。リードフレーム23aはその中央から圧電
トランスTの長手方向に延び、その先端部分は圧電トラ
ンスTに対し垂直に立ち上がった形状をなしている。
The piezoelectric transformer T has a lead frame 23.
It is fixed to a casing frame 20 in which a, 23b, and 23c are integrally formed, in the vicinity of the node portion of the piezoelectric transformer T via an elastic body 22 made of U-shaped silicon rubber. In the vicinity of this nodal point, a silicon rubber adhesive is used to adhere and fix it. The lead frame 23a extends from the center thereof in the longitudinal direction of the piezoelectric transformer T, and the tip portion thereof has a shape that rises perpendicularly to the piezoelectric transformer T.

【0016】この装置の配線は、入力側では入力電極Q
in1 がリードフレーム23aに接続されており、また、
入力電極Qin2 はリードフレーム23bに接続されてい
る。さらに、出力側ではリードフレーム23cが出力電
極Qout に接続されている。この時用いられる導線24
はこの圧電トランスTの振動を阻害しない程度のものが
用いられており、このため性能の劣化がない。また、こ
れらの電極Qin1 ,Qin2 ,Qout と接続端子23a,
23b,23cとの各接続は振動を阻害しない程度のも
のが用いられる。
The wiring of this device has an input electrode Q on the input side.
in1 is connected to the lead frame 23a, and
The input electrode Q in2 is connected to the lead frame 23b. Furthermore, on the output side, the lead frame 23c is connected to the output electrode Q out . Conductor wire 24 used at this time
Is used so long as it does not hinder the vibration of the piezoelectric transformer T, and therefore the performance is not deteriorated. In addition, these electrodes Q in1 , Q in2 , Q out and the connection terminals 23a,
Each connection with 23b and 23c is such that vibration is not hindered.

【0017】なお、これらの実施例で説明した弾性体は
コの字型に限ることなく、他にL字型でもよく、圧電ト
ランスがこれを支持する枠体に固定できればその形状は
他の形状のものに代替できる。
The elastic body described in these embodiments is not limited to the U-shape, but may be an L-shape. If the piezoelectric transformer can be fixed to the frame that supports it, its shape will be another shape. Can be replaced by

【0018】このように、以上述べたこれらの実施例で
は、全波長共振の振動モードで動作させる構成としたの
で、2箇所の節点部近傍で圧電トランスを支持したが、
他のモード、例えば半波長共振の振動モードで動作させ
てもよく、必要に応じて圧電トランスを支持すればよ
い。
As described above, in these embodiments described above, the piezoelectric transformer is supported in the vicinity of the two node portions because it is configured to operate in the vibration mode of full wavelength resonance.
It may be operated in another mode, for example, a vibration mode of half-wavelength resonance, and the piezoelectric transformer may be supported if necessary.

【0019】また、従来例に比べ薄型化され、さらに、
圧電トランスは弾性体と枠体とが一体化された構造体に
よって支持する構造としたので、確実に支持ができ、ま
た、弾性体や枠体をさらに薄くしても、充分支持でき
る。したがってさらに、薄型化され、また、狭い幅で節
点部分の支持ができ、装置の性能を向上できる。
Further, it is thinner than the conventional example, and further,
Since the piezoelectric transformer has a structure in which it is supported by a structure in which an elastic body and a frame body are integrated, it can be reliably supported, and even if the elastic body and the frame body are made thinner, they can be sufficiently supported. Therefore, the device can be made thinner, and the node portions can be supported with a narrow width, so that the performance of the device can be improved.

【0020】[0020]

【発明の効果】以上説明したように、本発明の圧電トラ
ンス装置によれば、枠状構造体の内側に、板状の圧電ト
ランスがその節点部近傍で弾性体を介して支持された状
態で相互に一体化され、その枠状構造体にはリードフレ
ームが一体形成された構成としたので、圧電トランスは
確実に支持され、性能の劣化がなく、また、表面実装が
容易に行える。さらに、圧電トランスからの放熱効果が
高く、熱による性能の劣化のない信頼性の高い装置が実
現できる。
As described above, according to the piezoelectric transformer device of the present invention, the plate-shaped piezoelectric transformer is supported inside the frame-shaped structure in the vicinity of the node via the elastic body. Since the lead frame is integrally formed on the frame-shaped structure integrally with each other, the piezoelectric transformer is reliably supported, the performance is not deteriorated, and the surface mounting can be easily performed. Further, it is possible to realize a highly reliable device that has a high heat radiation effect from the piezoelectric transformer and does not deteriorate in performance due to heat.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明実施例の構造を説明する図FIG. 1 is a diagram for explaining the structure of an embodiment of the present invention.

【図2】本発明の他の実施例の構造を説明する図FIG. 2 is a diagram for explaining the structure of another embodiment of the present invention.

【図3】本発明の他の実施例の構造を説明する断面図図FIG. 3 is a sectional view illustrating the structure of another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

S・・・・枠体 T・・・・圧電トランス 2a,2b,2c・・・・リードフレーム 4・・・・弾性体 S ... ・ Frame body T ・ ・ ・ ・ Piezoelectric transformer 2a, 2b, 2c ・ ・ ・ ・ Lead frame 4 ・ ・ ・ ・ Elastic body

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 枠状構造体の内側に、板状の圧電トラン
スがその節点部近傍で弾性体を介して支持された状態で
相互に一体化されているとともに、その枠状構造体には
上記圧電トランス表面に形成されている各電極と電気的
に接続された複数のリードフレームが一体形成されてな
る圧電トランス装置。
1. A plate-shaped piezoelectric transformer is integrated with each other inside the frame-shaped structure in a state of being supported via an elastic body in the vicinity of its node, and the frame-shaped structure has A piezoelectric transformer device in which a plurality of lead frames electrically connected to the respective electrodes formed on the surface of the piezoelectric transformer are integrally formed.
JP10817093A 1993-05-10 1993-05-10 Piezoelectric transformer device Expired - Lifetime JP3230330B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10817093A JP3230330B2 (en) 1993-05-10 1993-05-10 Piezoelectric transformer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10817093A JP3230330B2 (en) 1993-05-10 1993-05-10 Piezoelectric transformer device

Publications (2)

Publication Number Publication Date
JPH06318747A true JPH06318747A (en) 1994-11-15
JP3230330B2 JP3230330B2 (en) 2001-11-19

Family

ID=14477765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10817093A Expired - Lifetime JP3230330B2 (en) 1993-05-10 1993-05-10 Piezoelectric transformer device

Country Status (1)

Country Link
JP (1) JP3230330B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5701049A (en) * 1994-12-30 1997-12-23 Mitsui Petrochemical Industries, Ltd. Piezoelectric transformer
US5929554A (en) * 1994-12-30 1999-07-27 Mitsui Chemicals, Inc. Piezoelectric transformer
KR100305550B1 (en) * 1997-07-10 2001-11-22 나까니시 히로유끼 Piezoelectric transformer support structure for piezoelectric transformers and piezoelectric transformers provided therewith

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5701049A (en) * 1994-12-30 1997-12-23 Mitsui Petrochemical Industries, Ltd. Piezoelectric transformer
US5929554A (en) * 1994-12-30 1999-07-27 Mitsui Chemicals, Inc. Piezoelectric transformer
KR100305550B1 (en) * 1997-07-10 2001-11-22 나까니시 히로유끼 Piezoelectric transformer support structure for piezoelectric transformers and piezoelectric transformers provided therewith

Also Published As

Publication number Publication date
JP3230330B2 (en) 2001-11-19

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