JPH0990065A - Portable equipment with power generating device - Google Patents
Portable equipment with power generating deviceInfo
- Publication number
- JPH0990065A JPH0990065A JP7250861A JP25086195A JPH0990065A JP H0990065 A JPH0990065 A JP H0990065A JP 7250861 A JP7250861 A JP 7250861A JP 25086195 A JP25086195 A JP 25086195A JP H0990065 A JPH0990065 A JP H0990065A
- Authority
- JP
- Japan
- Prior art keywords
- magnetostrictive member
- giant magnetostrictive
- power generation
- power
- portable device
- 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
- 238000010248 power generation Methods 0.000 claims description 33
- 239000007769 metal material Substances 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Electromechanical Clocks (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、おもりの運動エネ
ルギを電気エネルギに変換する発電装置を有する携帯機
器の、特に、腕時計やペイジャー等に適用できるものに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable device having a power generation device for converting kinetic energy of a weight into electric energy, and more particularly to a portable device applicable to a wristwatch, a pager or the like.
【０００２】[0002]
【従来の技術】従来の発電装置付携帯機器は、特公昭５
１−１７３９３号公報の３ページに記載される様に、回
転錘の運動により圧電素子に歪を加え発電する携帯用小
型電源装置が知られており、バネ性レバーに直接圧電素
子を取り付け固定し、レバーの振動により圧電素子に繰
り返し歪を加える構造が記載されている。2. Description of the Related Art A conventional portable device with a power generator is disclosed in Japanese Patent Publication No.
As described on page 3 of Japanese Unexamined Patent Publication No. 1-17393, there is known a small portable power supply device that generates electric power by applying strain to a piezoelectric element by the motion of a rotary weight, and the piezoelectric element is attached and fixed directly to a spring lever. , A structure in which strain is repeatedly applied to a piezoelectric element by vibration of a lever is described.
【０００３】また、実開平６−７６８９４号公報の７ペ
ージには、おもりの揺動によりハンマーレバーが揺動
し、そのおもりが圧電材料を打つことにより発電するお
もり発電時計が記載されている。On page 7 of Japanese Utility Model Laid-Open No. 6-76894, there is described a weight generating timepiece in which a hammer lever swings by swinging a weight, and the weight strikes a piezoelectric material to generate power.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記従来技術
のように、一般に圧電素子で発電する場合、圧電素子の
静電容量が小さいため、１００Ｖレベルの電圧は容易に
出るが、電流を多く取り出すことが難しく、携帯用の電
子機器で使用する１．５ｖ〜１０ｖ程度の二次電源を充
電するには不向きであった。However, in the case of generating electric power by a piezoelectric element as in the above-mentioned conventional technique, a voltage of 100V level can be easily generated but a large amount of current is taken out because the electrostatic capacity of the piezoelectric element is small. It is difficult to charge a secondary power source of about 1.5v to 10v used in a portable electronic device.
【０００５】そこで、本発明の発電装置付携帯機器は、
上記のような課題を解決するもので、発電部を超磁歪部
材、永久磁石およびコイル部材で構成することにより、
１．５Ｖ〜１０Ｖ程度で多くの電流を発電することが出
来る小型の発電装置付携帯機器を提供することを目的と
する。Therefore, the portable device with a power generator of the present invention is
In order to solve the above problems, by configuring the power generation unit with a giant magnetostrictive member, a permanent magnet and a coil member,
An object of the present invention is to provide a small-sized mobile device with a power generator that can generate a large amount of current at about 1.5V to 10V.
【０００６】[0006]
【課題を解決するための手段】本発明の発電装置付携帯
機器は、請求項１に記載されるように、姿勢差により運
動するおもり、前記おもりの運動により歪が加えられ発
電する超磁歪部材、永久磁石およびコイル部材からなる
発電部、前記発電部の発電した電荷を整流する整流回
路、前記整流回路の整流した電流を蓄える蓄電回路を有
することを特徴とする。According to a first aspect of the present invention, there is provided a portable device with a power generator, a weight that moves due to a difference in posture, and a giant magnetostrictive member that is strained by the movement of the weight to generate power. A power generation unit including a permanent magnet and a coil member, a rectification circuit that rectifies the electric charge generated by the power generation unit, and a power storage circuit that stores the rectified current of the rectification circuit.
【０００７】また、発電部は永久磁石により磁気バイア
スを与えた正または負の磁歪定数を持つ超磁歪部材の回
りにコイルを巻いたもので構成されるか、音叉形状の振
動子の梁に超磁歪部材を貼り付け、その回りにコイルを
巻いたもので構成され、永久磁石により該超磁歪部材に
磁気バイアスを与えることを特徴とする。Further, the power generation section is constructed by winding a coil around a super-magnetostrictive member having a positive or negative magnetostriction constant to which a magnetic bias is given by a permanent magnet, or by superposing it on a beam of a tuning fork-shaped oscillator. A magnetostrictive member is attached and a coil is wound around the magnetostrictive member, and a magnetic bias is applied to the supermagnetostrictive member by a permanent magnet.
【０００８】また、請求項３に記載されるような発電装
置付携帯機器は、請求項１記載の特徴点に加え、発電部
が永久磁石により磁気バイアスを与えた片持ち梁の回り
にコイルを巻いた構造であり、該梁部材は正の磁歪定数
を持つ超磁歪部材と負の磁歪定数を持つ超磁歪部材を貼
り合わせたもので構成されることを特徴とし、さらに正
の超磁歪部材と負の超磁歪部材の間に金属材料またはセ
ラミック材料の部材を挟むことを特徴とする。In addition to the features of claim 1, the portable device with a power generator as described in claim 3 has a coil around a cantilever whose magnetic bias is given by a permanent magnet in the power generation part. The beam member has a wound structure, and the beam member is formed by laminating a giant magnetostrictive member having a positive magnetostriction constant and a giant magnetostrictive member having a negative magnetostriction constant. A member made of a metal material or a ceramic material is sandwiched between the negative giant magnetostrictive members.
【０００９】[0009]
【発明の実施の形態】以下、本発明を図面に基づいて説
明する。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings.
【００１０】図１は、本発明における発電装置付携帯機
器の１つの実施例を示す発電装置付腕時計の概念図であ
る。腕の動きにより回転するおもり１と、おもり１の衝
突により発電する発電部２を設ける。永久磁石３・４に
より磁気バイアスを与えた超磁歪部材５の周辺にはコイ
ル部材６が配置されている。さらに、４つのダイオード
により発電部２の発電を全波整流する整流回路７と、整
流された電荷を蓄えるコンデンサ８を設ける。時計部９
は、コンデンサ８を電源として作動する。なお、図中で
は２個の永久磁石３・４により磁気バイアスを与えてい
るが、磁気バイアスの与え方は本構造に限定するもので
はなく、例えば１個の永久磁石により磁気バイアスを与
えることも可能である。図１は概念図の為、整流回路
７、コンデンサ８及び時計部９をおもり１及び発電部２
と分けてあるが、実際にはおもり１と平面的に重なるよ
うに配置し、小型化を実現している。FIG. 1 is a conceptual diagram of a wristwatch with a power generator showing one embodiment of a portable device with a power generator according to the present invention. A weight 1 that rotates by the movement of an arm and a power generation unit 2 that generates power when the weight 1 collides are provided. A coil member 6 is arranged around the giant magnetostrictive member 5 which is magnetically biased by the permanent magnets 3 and 4. Further, a rectifier circuit 7 for full-wave rectifying the power generation of the power generation unit 2 by four diodes and a capacitor 8 for storing the rectified electric charge are provided. Clock section 9
Operates by using the capacitor 8 as a power source. Although the magnetic bias is given by the two permanent magnets 3 and 4 in the figure, the method of giving the magnetic bias is not limited to this structure, and for example, the magnetic bias may be given by one permanent magnet. It is possible. Since FIG. 1 is a conceptual diagram, a rectifier circuit 7, a capacitor 8 and a clock unit 9 are used as a weight 1 and a power generation unit 2.
However, in reality, the weight 1 is arranged so as to overlap with the weight 1 in order to realize a miniaturization.
【００１１】図２に、本発明に係わる発電装置付携帯機
器の発電部の一実施例を示す。発電部１０は両端に永久
磁石１１・１２を貼り付けた正または負の磁歪定数を持
つ超磁歪部材１３の一端を固定したものであり、超磁歪
部材１３の回りにはコイル１４が巻かれている。FIG. 2 shows an embodiment of a power generation section of a portable device with a power generator according to the present invention. The power generation unit 10 is one in which permanent magnets 11 and 12 are attached at both ends and one end of a giant magnetostrictive member 13 having a positive or negative magnetostriction constant is fixed, and a coil 14 is wound around the giant magnetostrictive member 13. There is.
【００１２】矢印の方向に衝撃が与えられると、超磁歪
部材１３は圧縮変形され、その後、長軸方向に振動す
る。この圧縮変形および振動により超磁歪部材１３に繰
り返し歪が加わり、超磁歪部材１３回りの磁界が変化す
る。従って、超磁歪部材１３の周辺に配置されているコ
イル部材１４に電力が発生し、衝撃エネルギーを電気エ
ネルギーに変換する。When a shock is applied in the direction of the arrow, the giant magnetostrictive member 13 is compressed and deformed, and then vibrates in the major axis direction. Due to this compressive deformation and vibration, strain is repeatedly applied to the giant magnetostrictive member 13, and the magnetic field around the giant magnetostrictive member 13 changes. Therefore, electric power is generated in the coil member 14 arranged around the giant magnetostrictive member 13, and the impact energy is converted into electric energy.
【００１３】図３に、本発明に係わる発電装置付携帯機
器の発電部２０の別の実施例を示す。発電部２０は両端
に永久磁石２１・２２を貼り付けた片持ち梁であり、正
の超磁歪部材２３と負の超磁歪部材２４が接着剤で貼り
合わされており、その回りにはコイル部材２５が巻かれ
ている。なお、正の超磁歪部材は磁界の印加方向に伸
び、負の超磁歪部材は反対に縮むように変形する。以
下、動作を説明する。図３において、初期に衝突または
たわみ等により矢印の方向に曲げ変形を加えると、その
後、曲げモードの自由振動を行う。そこで、図４に示す
ように下側に変形している時、正の超磁歪部材２３は引
っ張り方向に変位し、負の超磁歪部材２４は圧縮方向に
変形する。従って、梁の長手方向に磁界が発生し、コイ
ル部材２５に電流が流れる。又、図５に示すように上側
に変形している時、正の超磁歪部材２３は圧縮方向に変
形し、負の超磁歪部材２４は引っ張り方向に変形する。
従って、下側に変形した場合と逆方向に磁界が発生し、
図４と逆方向に電流が流れる。FIG. 3 shows another embodiment of the power generation section 20 of the portable device with a power generator according to the present invention. The power generation unit 20 is a cantilever having permanent magnets 21 and 22 attached to both ends thereof, and a positive supermagnetostrictive member 23 and a negative supermagnetostrictive member 24 are adhered to each other with an adhesive, and a coil member 25 is provided around them. Is wound. The positive giant magnetostrictive member extends in the direction of the magnetic field application, and the negative giant magnetostrictive member deforms in the opposite direction. The operation will be described below. In FIG. 3, when bending deformation is applied in the direction of the arrow due to collision or bending at the initial stage, then free vibration in the bending mode is performed. Therefore, as shown in FIG. 4, when deformed downward, the positive giant magnetostrictive member 23 is displaced in the pulling direction, and the negative giant magnetostrictive member 24 is deformed in the compression direction. Therefore, a magnetic field is generated in the longitudinal direction of the beam, and a current flows through the coil member 25. Further, as shown in FIG. 5, when deformed to the upper side, the positive giant magnetostrictive member 23 deforms in the compression direction and the negative giant magnetostrictive member 24 deforms in the tensile direction.
Therefore, a magnetic field is generated in the opposite direction to the case of the downward deformation,
A current flows in the opposite direction to that of FIG.
【００１４】ここで、超磁歪部材、永久磁石とコイル部
材からなる発電部が歪エネルギを電気エネルギに変換す
る時の効率について説明する。超磁歪部材の振動は電気
エネルギを取り出さなくても、超磁歪部材内部の自己損
失や永久磁石部、固定部からの振動漏れなど（以下、自
己減衰という）により、徐々に減衰する。この時、１回
の振動で自己減衰する歪エネルギ減衰率をａ％とする。
又、超磁歪部材とコイル部材が歪エネルギを電気エネル
ギに変換することにより、取り出した電気エネルギに相
当する歪エネルギが減衰する。この歪エネルギの減衰率
をｂ％とする。従って、１回の振動で（ａ＋ｂ）％の歪
エネルギが失われ、ｂ％の電気エネルギが得られたこと
になり、全ての振動について合計すると、エネルギ変換
効率はｂ／（ａ＋ｂ）となる。つまり、自己減衰のない
超磁歪部材であれば、歪エネルギは１００％電気エネル
ギに変換することが出来る。尚、発生電圧、電流につい
てはコイルの巻数、永久磁石の強さや超磁歪部材の形状
により自由振動時の振動周波数を合わせ込むことにより
所望の電圧、電流を得ることが可能となる。なお、振動
を利用しないで１回の圧縮または引っ張りだけを利用す
る事により全体の機構を簡単にすることも出来る。Here, the efficiency when the power generation section composed of the giant magnetostrictive member, the permanent magnet and the coil member converts strain energy into electric energy will be described. The vibration of the giant magnetostrictive member is gradually attenuated without extracting electric energy due to self-loss inside the giant magnetostrictive member and vibration leakage from the permanent magnet portion and the fixed portion (hereinafter referred to as self-damping). At this time, the strain energy attenuation rate which is self-damped by one vibration is set to a%.
Further, the giant magnetostrictive member and the coil member convert the strain energy into electric energy, so that the strain energy corresponding to the extracted electric energy is attenuated. The strain energy attenuation rate is b%. Therefore, the strain energy of (a + b)% is lost by one vibration, and the electric energy of b% is obtained, and the energy conversion efficiency becomes b / (a + b) when summed over all the vibrations. That is, the strain energy can be converted into 100% electric energy with a giant magnetostrictive member without self-damping. Regarding the generated voltage and current, it is possible to obtain the desired voltage and current by adjusting the vibration frequency during free vibration depending on the number of turns of the coil, the strength of the permanent magnet, and the shape of the giant magnetostrictive member. Note that the entire mechanism can be simplified by utilizing only one compression or pulling without utilizing vibration.
【００１５】図６に、本発明に係わる発電装置付携帯機
器の別の実施例による発電部３０の構造を示す。発電部
３０は永久磁石３１・３２により磁気バイアスを与えた
片持ち梁構造であり、正の超磁歪部材３３と負の超磁歪
部材３４が金属材料またはセラミック材料からなる薄板
部材３５を挟むように貼り合わされており、その回りに
はコイル部材３６が巻かれている。動作については図３
において記載したものと同じである。なお、薄板部材と
しては、超磁歪部材よりも薄く、リン青銅のようにバネ
性のあるものが望ましい。FIG. 6 shows the structure of the power generation section 30 according to another embodiment of the portable device with a power generator according to the present invention. The power generation unit 30 has a cantilever structure in which a magnetic bias is applied by the permanent magnets 31 and 32, and the positive giant magnetostrictive member 33 and the negative giant magnetostrictive member 34 sandwich a thin plate member 35 made of a metal material or a ceramic material. They are stuck together, and the coil member 36 is wound around them. Figure 3 for the operation
Is the same as that described in. The thin plate member is preferably thinner than the giant magnetostrictive member and has a spring property such as phosphor bronze.
【００１６】図７に、本発明に係わる発電装置付携帯機
器のさらに別の実施例による発電部４０の構造を示す。
発電部４０は音叉形状をした振動子４１に超磁歪部材４
４・４５が接着されており、それぞれの超磁歪部材４４
・４５の回りには、コイル部材４６・４７が巻かれてい
る。また、超磁歪部材は２枚の永久磁石４２・４３によ
り磁気バイアスを与えられている。音叉として両方の梁
が振動すると、超磁歪部材４４・４５はともに同位相で
圧縮と引張を繰り返すことにより、磁界が発生しコイル
部材４６・４７に電流が流れる。FIG. 7 shows the structure of a power generation section 40 according to still another embodiment of the portable device with a power generator according to the present invention.
The power generation unit 40 includes a tuning fork-shaped vibrator 41 and a giant magnetostrictive member 4
4 and 45 are adhered, and each giant magnetostrictive member 44
The coil members 46 and 47 are wound around 45. The giant magnetostrictive member is magnetically biased by two permanent magnets 42 and 43. When both beams vibrate as a tuning fork, the giant magnetostrictive members 44 and 45 both repeat compression and tension in the same phase, generating a magnetic field and flowing a current through the coil members 46 and 47.
【００１７】なお、本発明の説明は腕時計に関して記載
してきたが、ペイジャーやカメラ等の携帯機器にも適用
可能である。Although the present invention has been described with reference to a wristwatch, it can also be applied to portable devices such as pagers and cameras.
【００１８】[0018]
【発明の効果】以上説明したように、本発明によれば以
下のような効果を有する。As described above, the present invention has the following effects.
【００１９】１）発電部を超磁歪材、永久磁石とコイル
で構成することにより、数ｖの電圧で多くの電流を簡単
に取り出すことができる。1) By constructing the power generation section with a giant magnetostrictive material, a permanent magnet and a coil, a large amount of current can be easily extracted with a voltage of several v.
【００２０】２）曲げモードを利用することにより、小
さな運動エネルギーでも大きな歪を得ることが出来、従
っておもりの僅かな変動でも効率よく電気エネルギに変
換することができる。2) By utilizing the bending mode, a large strain can be obtained even with a small kinetic energy, and therefore even a slight change in the weight can be efficiently converted into electric energy.
【００２１】３）磁歪部材の間に金属材料等の薄板を挟
むことにより強度が向上するとともに、薄板をバネ材に
することにより、振動時の損失も改善することができ変
換効率を向上することができる。3) The strength is improved by sandwiching a thin plate made of a metal material or the like between the magnetostrictive members, and by using a thin plate as a spring material, loss during vibration can be improved and conversion efficiency can be improved. You can
【００２２】４）発電部を音叉形状にすることにより、
固定部からの損失を大幅に低減することができ、従って
変換効率を向上することが出来る。4) By forming the power generation section into a tuning fork,
The loss from the fixed part can be greatly reduced, and the conversion efficiency can be improved accordingly.
【図１】本発明の１つの実施例を示す発電装置付腕時計
の概念図である。FIG. 1 is a conceptual diagram of a wristwatch with a power generating device showing one embodiment of the present invention.
【図２】本発明の１つの実施例を示す発電部の構造図で
ある。FIG. 2 is a structural diagram of a power generation unit showing one embodiment of the present invention.
【図３】本発明の１つの実施例を示す発電部の構造図で
ある。FIG. 3 is a structural diagram of a power generation unit showing one embodiment of the present invention.
【図４】本発明の１つの実施例を示す発電部の状態図で
ある。FIG. 4 is a state diagram of a power generation unit showing an embodiment of the present invention.
【図５】本発明の１つの実施例を示す発電部の状態図で
ある。FIG. 5 is a state diagram of a power generation unit showing one embodiment of the present invention.
【図６】本発明の１つの実施例を示す発電部の構造図で
ある。FIG. 6 is a structural diagram of a power generation unit showing one embodiment of the present invention.
【図７】本発明の１つの実施例を示す発電部の構造図で
ある。FIG. 7 is a structural diagram of a power generation unit showing one embodiment of the present invention.
１ おもり ２、１０、２０、３０、４０ 発電部 ３、４、１１、１２、２１、 永久磁石 ２２、３１、３２、４２、４３ 永久磁石 ５、１３、４４、４５ 超磁歪部材 ６、１４、２５、３６、４６、４７ コイル部材 ７ 整流回路 ８ コンデンサ ９ 時計部 ２３、３３ 正の磁歪部材 ２４、３４ 負の磁歪部材 ３５ 薄板部材 ４１ 振動子 1 Weight 2, 10, 20, 30, 40 Power generation part 3, 4, 11, 12, 21, Permanent magnet 22, 31, 32, 42, 43 Permanent magnet 5, 13, 44, 45 Giant magnetostrictive member 6, 14, 25, 36, 46, 47 Coil member 7 Rectifier circuit 8 Capacitor 9 Clock part 23, 33 Positive magnetostrictive member 24, 34 Negative magnetostrictive member 35 Thin plate member 41 Transducer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 橋本 泰治 長野県諏訪市大和３丁目３番５号 セイコ ーエプソン株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Taiji Hashimoto 3-3-5 Yamato, Suwa-shi, Nagano Seiko Epson Corporation
Claims (5)
りの運動により歪が加えられ発電する超磁歪部材、永久
磁石およびコイル部材からなる発電部と、該発電部の発
電した電荷を整流する整流回路と、該整流回路の整流し
た電流を蓄える蓄電回路とを有することを特徴とする発
電装置付携帯機器。1. A weight that moves due to a difference in posture, a power generation section that includes a giant magnetostrictive member, a permanent magnet, and a coil member that generate strain by the movement of the weight, and a rectifier that rectifies the electric charge generated by the power generation section. A portable device with a power generator, comprising a circuit and a power storage circuit that stores a current rectified by the rectifier circuit.
アスを与えた正または負の磁歪定数を持つ超磁歪部材の
回りにコイルを巻いたもので構成されることを特徴とす
る請求項１記載の発電装置付携帯機器。2. The power generation unit is configured by winding a coil around a giant magnetostrictive member having a positive or negative magnetostriction constant that is magnetically biased by a permanent magnet. Portable device with power generator.
アスを与えた片持ち梁の回りにコイルを巻いた構造であ
り、該梁部材は正の磁歪定数を持つ超磁歪部材と負の磁
歪定数を持つ超磁歪部材を貼り合わせたもので構成され
ることを特徴とする請求項１記載の発電装置付携帯機
器。3. The power generation unit has a structure in which a coil is wound around a cantilever beam to which a magnetic bias is applied by a permanent magnet, the beam member having a super magnetostrictive member having a positive magnetostriction constant and a negative magnetostriction constant. The portable device with a power generator according to claim 1, wherein the giant magnetostrictive member having the above is bonded.
間に金属材料またはセラミック材料の部材を挟むことを
特徴とする請求項３記載の発電装置付携帯機器。4. The portable device with a power generator according to claim 3, wherein a member made of a metal material or a ceramic material is sandwiched between the positive giant magnetostrictive member and the negative giant magnetostrictive member.
超磁歪部材を貼り付け、その回りにコイルを巻いたもの
で構成され、永久磁石により該超磁歪部材に磁気バイア
スを与えることを特徴とする請求項１記載の発電装置付
携帯機器。5. The power generation unit is configured by attaching a giant magnetostrictive member to a beam of a tuning-fork-shaped oscillator and winding a coil around the beam, and applying a magnetic bias to the giant magnetostrictive member with a permanent magnet. The portable device with a power generator according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7250861A JPH0990065A (en) | 1995-09-28 | 1995-09-28 | Portable equipment with power generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7250861A JPH0990065A (en) | 1995-09-28 | 1995-09-28 | Portable equipment with power generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0990065A true JPH0990065A (en) | 1997-04-04 |
Family
ID=17214110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7250861A Pending JPH0990065A (en) | 1995-09-28 | 1995-09-28 | Portable equipment with power generating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0990065A (en) |
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