JPH1014194A - Vibration generator for notification - Google Patents
Vibration generator for notificationInfo
- Publication number
- JPH1014194A JPH1014194A JP16139996A JP16139996A JPH1014194A JP H1014194 A JPH1014194 A JP H1014194A JP 16139996 A JP16139996 A JP 16139996A JP 16139996 A JP16139996 A JP 16139996A JP H1014194 A JPH1014194 A JP H1014194A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- vibrating body
- coil
- vibrating
- frequency
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、携帯電話、ページ
ャー等の携帯用通信機器、或いは腕時計、玩具等の小型
機器に内蔵する報知用振動発生装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a notification vibration generator incorporated in a portable communication device such as a portable telephone or a pager, or a small device such as a wristwatch or a toy.
【0002】[0002]
【従来の技術】携帯用通信機器等の小型機器には、例え
ば、着信の報知、所定の時刻の報知等の報知手段が配備
されている。前記報知手段には、ベル等の音によるもの
が最も多い。しかしながら、近年、周囲の人々への配慮
から、音による報知手段だけでなく、機器を振動するこ
とによる報知手段も内蔵して、状況に応じて、両方の報
知手段を使用する、または、何れかの報知手段を選択使
用するようにした小型機器が増加している。従来からよ
く使用されている発音装置には、図4(a)及び(b)
のようなリンガ(8)がある。これは、永久磁石(81)及び
ヨーク(82)によって構成される磁気回路部を、ケース(8
4)中に固定する。そして、ヨーク(82)にコイル(83)を固
定し、ヨーク(82)に対向する位置に、振動板(80)を配備
する。該振動板(80)の周縁をケース(84)に固定し、開口
部を有する上ぶた(85)を、ケース(84)に固定する。コイ
ル(83)に電流を流すと、ヨーク(82)は電磁石化され、先
端に磁極が発生する。このヨーク(82)に発生した磁極と
振動板(80)の有する磁極により、振動板(80)は、異極で
あればヨーク(82)に吸引され、同極であれば、ヨーク(8
2)より反発される。従って、コイル(83)に断続的に電流
を流すことにより、振動板(80)は、前記動作を繰り返
し、空気を振動させて音波を生成し、該音波が上ぶた(8
5)の開口部を通って外部に伝搬する。振動板(80)の振動
数を可聴域の振動数(約20Hz〜約20kHz)に設定するこ
とにより、音による報知が実現できる。また、従来の振
動発生装置としては、図5のような、回転軸(91)に偏心
おもり(92)を配備した円筒型直流モータ(90)が、最も多
く使用されている。該モータ(90)に通電すると、偏心お
もり(92)が回転軸(91)と共に回転することにより、振動
が発生し、該振動を機器に伝達することによって、振動
による報知が実現できる。2. Description of the Related Art A small device such as a portable communication device is provided with a notifying means for notifying an incoming call, a predetermined time, and the like. Most of the notification means is based on a sound such as a bell. However, in recent years, in consideration of surrounding people, in addition to the sound notification means, a notification means by vibrating the device is built in, and depending on the situation, both notification means are used, or either of them is used. There is an increasing number of small devices that selectively use the notification means. FIGS. 4 (a) and 4 (b) show conventional sounding devices.
There is a ringer (8) like this. This means that a magnetic circuit portion composed of a permanent magnet (81) and a yoke (82) is
4) Fix inside. Then, the coil (83) is fixed to the yoke (82), and the diaphragm (80) is provided at a position facing the yoke (82). The peripheral edge of the diaphragm (80) is fixed to the case (84), and the upper lid (85) having an opening is fixed to the case (84). When a current is applied to the coil (83), the yoke (82) is turned into an electromagnet, and a magnetic pole is generated at the tip. Due to the magnetic poles generated in the yoke (82) and the magnetic poles of the diaphragm (80), the diaphragm (80) is attracted to the yoke (82) if it has a different polarity, and if it has the same polarity, the yoke (8).
2) I will be repelled. Therefore, by intermittently supplying a current to the coil (83), the diaphragm (80) repeats the above operation, vibrates the air to generate a sound wave, and the sound wave is generated by the upper lid (8).
The light propagates outside through the opening of 5). By setting the frequency of the diaphragm (80) to a frequency in the audible range (about 20 Hz to about 20 kHz), sound notification can be realized. As a conventional vibration generator, a cylindrical DC motor (90) having an eccentric weight (92) provided on a rotating shaft (91) as shown in FIG. 5 is most often used. When the motor (90) is energized, the eccentric weight (92) rotates together with the rotating shaft (91) to generate vibration. By transmitting the vibration to the device, it is possible to realize notification by vibration.
【0003】[0003]
【発明が解決しようとする課題】従来、音による報知手
段及び振動による報知手段の両方を内蔵する機器におい
ては、上記のように、音を発生する発音装置及び振動を
発生する振動発生装置の2つをそれぞれ配備する必要が
あった。従って、1つの報知装置のみを使用するときよ
りも、機器内に広いスペースが必要であった。Conventionally, in a device incorporating both a sound notification unit and a vibration notification unit, as described above, a sound generation device for generating a sound and a vibration generation device for generating a vibration are used. One had to deploy each one. Therefore, a wider space is required in the device than when only one notification device is used.
【0004】[0004]
【発明の目的】本発明は、発音機能と振動発生機能を併
せ持つ報知用振動発生装置を提供することを目的とす
る。SUMMARY OF THE INVENTION It is an object of the present invention to provide a notification vibration generator having both a sound generation function and a vibration generation function.
【0005】[0005]
【課題を解決する為の手段】上記課題を解決するため、
本発明は、永久磁石を具え、第1バネ体によって固定部
材に支持された第1振動体と、前記永久磁石の磁束と交
差するように配置されたコイルを具え、第2バネ体によ
って固定部材に支持された第2振動体と、前記コイルに
接続され、設定された所定周波数の電流をコイルに通電
する通電部とから構成される。前記第1振動体及び第1
バネ体によって形成された第1振動系と、前記第2振動
体及び第2バネ体によって形成された第2振動系のうち
の一方は、周波数が可聴範囲である音波を生成して外部
に伝搬する音源として使用され、他方の振動系は、固定
部材に振動を伝達して機器を振動させる振動源として使
用される。さらに、本発明は、前記通電部に接続され、
通電部が前記コイルに通電する電流の周波数を、前記第
1振動系の固有振動数f01に略一致する周波数、また
は、前記第2振動系の固有振動数f02に略一致する周波
数に切り替える切替回路を具えることができる。Means for Solving the Problems To solve the above problems,
The present invention includes a first vibrating body that includes a permanent magnet and is supported by a fixed member by a first spring body, and a coil that is disposed to intersect the magnetic flux of the permanent magnet, and includes a fixed member that is fixed by a second spring body. And a current-carrying unit connected to the coil and supplying a current of a predetermined frequency to the coil. The first vibrator and the first vibrator
One of the first vibration system formed by a spring body and the second vibration system formed by the second vibration body and the second spring body generates a sound wave whose frequency is in an audible range and propagates to the outside. The other vibration system is used as a vibration source that transmits vibration to the fixed member and vibrates the device. Furthermore, the present invention is connected to the energizing section,
The frequency of the current conducting portion is energizing the coil, the first vibration system substantially matches the frequency to the natural frequency f 01 of, or switch to a frequency that substantially coincides with the natural frequency f 02 of the second vibration system A switching circuit can be provided.
【0006】[0006]
【作用】上記構成の報知用振動発生装置に対して、通電
部がコイルに通電すると、永久磁石を具える第1振動体
とコイルを具える第2振動体の間には、電流と磁界の相
互作用による電磁力が働く。従って、電流値が周期的に
変化する電流をコイルに通電することによって、第1振
動系及び第2振動系には、それぞれ、前記電磁力を周期
的な強制力とする強制振動が発生する。該強制振動によ
り、音源として使用される振動系は、周波数が可聴範囲
である音波を生成して外部に伝搬し、振動源として使用
される振動系は、固定部材に振動を伝達して機器を振動
させる。また、本発明の報知用振動発生装置に上記切替
回路を具えることにより、通電部は、第1振動系及び第
2振動系の中の何れか一方の固有振動数に略一致する周
波数の電流をコイルに通電することになる。このとき、
該固有振動数を有する振動系には、共鳴現象が起こっ
て、該振動系の振幅が最大となる。When the coil is energized by the current supply unit to the notification vibration generating device having the above-described configuration, a current and a magnetic field are transmitted between the first vibrator having the permanent magnet and the second vibrator having the coil. Electromagnetic force acts due to the interaction. Therefore, by applying a current whose current value changes periodically to the coil, forced vibration is generated in the first vibration system and the second vibration system, in which the electromagnetic force is a periodic force. Due to the forced vibration, a vibration system used as a sound source generates a sound wave whose frequency is in an audible range and propagates to the outside, and a vibration system used as a vibration source transmits a vibration to a fixed member to cause a device to operate. Vibrate. In addition, by providing the above-described switching circuit in the notification vibration generating device of the present invention, the current-carrying unit is configured to supply a current having a frequency substantially equal to one of the natural frequencies of the first vibration system and the second vibration system. Is supplied to the coil. At this time,
A resonance phenomenon occurs in the vibration system having the natural frequency, and the amplitude of the vibration system becomes maximum.
【0007】[0007]
【発明の効果】本発明の報知用振動発生装置は、1つの
電磁駆動部品によって、2つの振動系に強制振動を発生
し、該振動によって、一方の振動系が音源として発音機
能を提供でき、他方の振動系が振動源として機器の振動
機能を提供できる。その結果、報知用の装置を小型化及
び低価格化できることになる。また、切替回路によっ
て、一方の振動系に共鳴現象を発生させることができ、
専ら、音または機器の振動の何れか一方を発生させるこ
とができる。従って、切替回路によって、発音機能また
は機器の振動機能の何れかを提供することができる。According to the present invention, a vibration generator for notification generates forced vibrations in two vibration systems by one electromagnetic drive component, and one of the vibration systems can provide a sound generating function as a sound source by the vibration. The other vibration system can provide the vibration function of the device as a vibration source. As a result, the notification device can be reduced in size and cost. In addition, a resonance phenomenon can be generated in one vibration system by the switching circuit,
Either sound or vibration of the device can be generated exclusively. Therefore, either the sound generation function or the vibration function of the device can be provided by the switching circuit.
【0008】[0008]
【発明の実施の形態】以下、本発明の実施形態につい
て、図面に沿って詳述する。なお、所定周波数の電流を
コイル(40)に通電する通電部(6)と、該周波数を切り替
える切替回路(60)に関しては、従来から一般的な回路と
して知られている。図1(a)及び(b)は、本実施形
態の報知用振動発生装置を示し、該振動発生装置は、2
つの振動系と、振動系を支持する固定部材(5)を具え
る。固定部材(5)は、本実施形態では、第1振動系を支
持する下ケース(50)と、第2振動系を支持し且つ下ケー
ス(50)と結合する上ケース(51)とによって構成され、下
ケース(50)及び上ケース(51)の結合によって内部に形成
される空間に、2つの振動系が収納される。上ケース(5
1)の中央部には、外部に音波を伝搬するための開口部(5
2)が開いている。Embodiments of the present invention will be described below in detail with reference to the drawings. The energizing section (6) for supplying a current of a predetermined frequency to the coil (40) and the switching circuit (60) for switching the frequency are conventionally known as general circuits. FIGS. 1A and 1B show a notification vibration generating device according to the present embodiment.
And a fixing member (5) for supporting the vibration system. In the present embodiment, the fixing member (5) includes a lower case (50) that supports the first vibration system, and an upper case (51) that supports the second vibration system and is coupled to the lower case (50). Then, two vibration systems are housed in a space formed inside by coupling the lower case (50) and the upper case (51). Upper case (5
At the center of 1), an opening (5
2) is open.
【0009】第1振動系は、金属薄板、ゴム、樹脂等の
弾性材を用いて、面と垂直方向に変形可能に形成された
第1バネ体(1)と、永久磁石(30)を具える第1振動体
(3)とによって構成され、第1バネ体(1)の内周側に、
第1振動体(3)が接着等により取り付けられ、第1バネ
体(1)の外周側が下ケース(50)に接着等により取り付け
られる。これにより、第1振動系は、下ケース(50)に対
して上下に振動可能となる。永久磁石(30)を具える第1
振動体(3)には、外部への磁界の漏れを防ぎ、且つ、電
流と磁界の相互作用によって働く電磁力を効率よく発生
させるために、永久磁石(30)の上下にそれぞれ上ヨーク
(31)及び下ヨーク(32)が配備され、これにより磁気回路
が形成される。永久磁石(30)は、上面がN極、下面がS
極となるように、環状に形成され、上ヨーク(31)は、内
周に垂直壁を有するリング体形状に形成され、且つ下ヨ
ーク(32)は、中央に***部を有する円板形状に形成され
る。上ヨーク(31)の垂直壁と下ヨーク(32)の中央***部
との間には、後記する第2振動体(4)が上下動可能とな
るような磁気ギャップ(33)が形成される。The first vibration system includes a first spring body (1) formed by using an elastic material such as a thin metal plate, rubber, resin or the like so as to be deformable in a direction perpendicular to the surface, and a permanent magnet (30). The first vibrating body
(3), on the inner peripheral side of the first spring body (1),
The first vibrating body (3) is attached by adhesion or the like, and the outer peripheral side of the first spring body (1) is attached to the lower case (50) by adhesion or the like. Thereby, the first vibration system can vibrate up and down with respect to the lower case (50). First with permanent magnet (30)
In order to prevent the leakage of the magnetic field to the outside and efficiently generate the electromagnetic force acting by the interaction between the current and the magnetic field, the vibrating body (3) has upper yokes above and below the permanent magnet (30), respectively.
(31) and a lower yoke (32) are provided, thereby forming a magnetic circuit. The permanent magnet (30) has an N pole on the upper surface and S on the lower surface.
The upper yoke (31) is formed in a ring shape having a vertical wall on the inner periphery, and the lower yoke (32) is formed in a disk shape having a raised portion in the center so as to be a pole. It is formed. A magnetic gap (33) is formed between the vertical wall of the upper yoke (31) and the central ridge of the lower yoke (32) so that a later-described second vibrator (4) can move up and down. .
【0010】一方、第2振動系は、第1バネ体(1)と同
様の弾性材を用いて、面と垂直方向に変形可能に形成さ
れた第2バネ体(2)と、コイル(40)を具える第2振動体
(4)とによって構成され、第2バネ体(2)の内周側に、
第2振動体(4)が接着等により取り付けられ、第2バネ
体(2)の外周側が上ケース(51)に接着等により取り付け
られる。これにより、第2振動体(4)は、上ケース(51)
に対して上下に振動可能となる。第2振動体(4)は、コ
イル(40)、該コイル(40)を支持するボビン(41)、及び音
波を発生するための振動板(43)によって構成される。ボ
ビン(41)は、円筒形状で、第2バネ体(2)に取り付けら
れ、ボビン(41)の外周にコイル(40)が巻回されている。
ボビン(41)の上面には、振動板(43)が配備される。コイ
ル(40)及びボビン(41)は、第1振動体(3)の磁気ギャッ
プ(33)内を移動可能に配備される。[0010] On the other hand, the second vibrating system uses a resilient material similar to the first spring body (1), and a second spring body (2) formed to be deformable in a direction perpendicular to the plane, and a coil (40). The second vibrating body comprising
(4), on the inner peripheral side of the second spring body (2),
The second vibrating body (4) is attached by an adhesive or the like, and the outer peripheral side of the second spring body (2) is attached to the upper case (51) by an adhesive or the like. Thereby, the second vibrating body (4) is connected to the upper case (51).
Can vibrate up and down. The second vibrating body (4) includes a coil (40), a bobbin (41) supporting the coil (40), and a vibrating plate (43) for generating a sound wave. The bobbin (41) has a cylindrical shape and is attached to the second spring body (2), and a coil (40) is wound around the outer periphery of the bobbin (41).
A diaphragm (43) is provided on the upper surface of the bobbin (41). The coil (40) and the bobbin (41) are provided movably in the magnetic gap (33) of the first vibrating body (3).
【0011】以上のように、各振動系が配備された下ケ
ース(50)及び上ケース(51)を結合し、コイル(40)の端子
(42)(42)を、設定された所定周波数の電流をコイル(40)
に流す通電部(6)(図1には示さず)に電気的に接続す
る。このとき、第1振動体(3)において、図2(a)及
び(b)に矢印で示す方向の磁気回路が、永久磁石(3
0)、上ヨーク(31)、下ヨーク(32)及び磁気ギャップ(33)
を含んで形成され、磁気ギャップ(33)内の磁界は、径方
向内向きとなる。また、コイル(40)に流れる電流の向き
が、装置の上から見て反時計回りであるとすると、磁界
と該磁界に交差する電流との相互作用によって、図2
(a)のように、第1振動体(3)及び第2振動体(4)の
間に斥力が働く。逆に、コイル(40)に流す電流の向きを
反対にすると、図2(b)のように、第1振動体(3)及
び第2振動体(4)の間に引力が働く。従って、コイル(4
0)に通電する電流値を周期的に変化させることにより、
第1振動体(3)及び第2振動体(4)にそれぞれ外力とし
て周期的な電磁力を働かせることになり、1組の永久磁
石(30)及びコイル(40)によって、第1振動系及び第2振
動系に、それぞれ強制振動を発生させることができる。
この強制振動によって、第1振動系は、第1振動体(3)
をケース(50)(51)に衝突させるか、或いは、第1バネ体
(1)の復元力によって、ケース(50)(51)に振動を伝達し
て、機器を振動させ、振動による報知が実現できる。ま
た、この強制振動によって、第2振動系は、第2振動体
(4)の振動板(43)が空気を振動させて音波を生成し、該
音波が上ケース(51)の開口部(52)を通って外部に伝搬す
る。音波の振動数が可聴域(約20Hz〜約20kHz)であれ
ば、音による報知が実現できる。As described above, the lower case (50) and the upper case (51) provided with the respective vibration systems are connected to each other, and the terminal of the coil (40) is connected.
(42) (42), set the current of the predetermined frequency coil (40)
1 (not shown in FIG. 1). At this time, in the first vibrating body (3), the magnetic circuit in the direction indicated by the arrows in FIGS.
0), upper yoke (31), lower yoke (32) and magnetic gap (33)
The magnetic field in the magnetic gap (33) is directed radially inward. Assuming that the direction of the current flowing through the coil (40) is counterclockwise as viewed from above the device, the interaction between the magnetic field and the current that intersects the magnetic field results in FIG.
As shown in (a), a repulsive force acts between the first vibrating body (3) and the second vibrating body (4). Conversely, if the direction of the current flowing through the coil (40) is reversed, an attractive force acts between the first vibrating body (3) and the second vibrating body (4) as shown in FIG. Therefore, the coil (4
By periodically changing the value of the current flowing through (0),
A periodic electromagnetic force is applied as an external force to the first vibrating body (3) and the second vibrating body (4), respectively, and the first vibrating system and the first vibrating system are formed by one set of the permanent magnet (30) and the coil (40). Forced vibration can be generated in each of the second vibration systems.
Due to this forced vibration, the first vibration system becomes the first vibration body (3).
To the case (50), (51) or the first spring body
Vibration is transmitted to the cases (50) and (51) by the restoring force of (1), and the device is vibrated, so that notification by vibration can be realized. In addition, due to this forced vibration, the second vibration system becomes a second vibration body.
The diaphragm (43) of (4) vibrates the air to generate a sound wave, and the sound wave propagates to the outside through the opening (52) of the upper case (51). If the frequency of the sound wave is in the audible range (about 20 Hz to about 20 kHz), notification by sound can be realized.
【0012】ある振動系が発音源として効果的に機能す
るには、人間の聴感上最も感度が高い2〜3kHzの周波
数で、できる限り大きく振動させることが望ましい。ま
た、従来から機器の振動源として用いられている振動発
生装置の周波数は、概ね100Hz前後である。従って、あ
る振動系が振動源として効果的に機能するには、100Hz
前後の周波数で、できる限り大きく振動させることが望
ましい。本実施形態の2つの振動系は、何れも1自由度
振動系であり、その固有振動数f0は、粘性率を微小で
あるため無視し、且つバネ体の質量を、振動体の質量よ
りもはるかに小さいとして無視すると、 f0=(1/2π)(k/m)1/2 で表わされる。ここで、πは円周率、kはバネ体のバネ
係数、且つmは振動体の質量である。従って、各振動系
におけるバネ体のバネ係数と振動体の質量を適当に設定
することにより、所望の固有振動数を得ることができ
る。以下、第1振動系の固有振動数f01を3kHzとし、
第2振動系の固有振動数f02を100Hzとし、第1振動体
(3)及び第2振動体(4)の質量が略等しいとして、コイ
ル(40)に通電する電流の周波数と、第1振動体(3)及び
第2振動体(4)それぞれの振幅との関係を説明する。In order for a certain vibration system to function effectively as a sound source, it is desirable to vibrate as large as possible at a frequency of 2 to 3 kHz, which is most sensitive to human hearing. Further, the frequency of a vibration generator conventionally used as a vibration source of a device is about 100 Hz. Therefore, for a vibration system to function effectively as a vibration source,
It is desirable to vibrate as large as possible at the front and rear frequencies. Each of the two vibration systems of this embodiment is a single-degree-of-freedom vibration system, and its natural frequency f 0 is ignored because the viscosity is very small, and the mass of the spring body is smaller than the mass of the vibration body. Is negligible because it is much smaller, and is represented by f 0 = (1 / 2π) (k / m) 1/2 . Here, π is the circular constant, k is the spring coefficient of the spring body, and m is the mass of the vibrating body. Therefore, a desired natural frequency can be obtained by appropriately setting the spring coefficient of the spring body and the mass of the vibration body in each vibration system. Hereinafter, the natural frequency f 01 of the first vibration system is set to 3 kHz,
The natural frequency f 02 of the second vibration system is set to 100 Hz, and the first vibration body
Assuming that the masses of (3) and the second vibrating body (4) are substantially equal, the frequency of the current flowing through the coil (40) and the amplitude of each of the first vibrating body (3) and the second vibrating body (4) are Explain the relationship.
【0013】1自由度振動系において、電流と磁界によ
る周期的な外力を振動体に加えるとき、振動体の振幅G
は、コイルのインダクタンスを無視すると、 |G|=(KBL)/{r2(k−mω2)2+K4B4L4
ω2}1/2 で表わされる。ここで、Kは比例定数、Bは磁気ギャッ
プ(33)内の磁束密度、Lはコイル(40)の有効長さ、rは
コイル(40)の直流抵抗、且つωはコイル(40)に通電する
電流の角周波数(=2πf)である。このときの振動体
の振幅と電流周波数との関係を示すグラフが図3であ
る。図3を参照すると、振動体の振幅は、電流周波数が
約100Hz以下の領域では、第1振動体の方が、第2振動
体(4)よりもはるかに大きく、その差が約59dBである。
電流周波数が約100Hzのときに、第1振動体(3)の振幅
が最大となる。周波数が約100Hzを超えると、第1振動
体(3)の振幅は、指数関数的に減少する。一方、第2振
動体(4)の振幅は、周波数が約3kHzに近づくにつれて
増加し、約3kHzのときに最大となり、第1振動体(3)
よりも大きくなる。そして、周波数が約3kHzを超える
と、第1振動体(3)と同様に第2振動体(4)の振幅も、
指数関数的に減少していく。When a periodic external force due to a current and a magnetic field is applied to a vibrating body in a one-degree-of-freedom vibration system, the amplitude G
Ignoring the coil inductance, | G | = (KBL) / {r 2 (km−ω 2 ) 2 + K 4 B 4 L 4
ω 2 } 1/2 . Here, K is a proportional constant, B is the magnetic flux density in the magnetic gap (33), L is the effective length of the coil (40), r is the DC resistance of the coil (40), and ω is the current through the coil (40). Is the angular frequency (= 2πf) of the current. FIG. 3 is a graph showing the relationship between the amplitude of the vibrating body and the current frequency at this time. Referring to FIG. 3, the amplitude of the vibrating body is much larger in the first vibrating body than in the second vibrating body (4) in the region where the current frequency is about 100 Hz or less, and the difference is about 59 dB. .
When the current frequency is about 100 Hz, the amplitude of the first vibrating body (3) becomes maximum. When the frequency exceeds about 100 Hz, the amplitude of the first vibrating body (3) decreases exponentially. On the other hand, the amplitude of the second vibrating body (4) increases as the frequency approaches about 3 kHz, becomes maximum when the frequency is about 3 kHz, and the first vibrating body (3)
Larger than. Then, when the frequency exceeds about 3 kHz, the amplitude of the second vibrating body (4), like the first vibrating body (3),
It decreases exponentially.
【0014】従って、通電部(6)がコイル(40)に通電す
る電流の周波数を、第1振動系の固有振動数f01≒100H
z、または、第2振動系の固有振動数f02≒3kHzに切り
替える切替回路(60)を通電部(6)に接続し、該切替回路
(60)によって、通電部(6)がコイル(40)に通電する電流
の周波数を約100Hzにすると、第1振動体(3)が第2振
動体(4)よりも大きく振動して、専ら、機器の振動によ
る報知を実現できる。また、切替回路(60)によって、通
電部(6)がコイル(40)に通電する電流の周波数を約3kH
zにすると、第2振動体(4)が第1振動体(3)よりも大
きく振動して、専ら、音の発生による報知を実現でき
る。Accordingly, the frequency of the current that the energizing section (6) energizes the coil (40) is set to the natural frequency f 01 ≒ 100H of the first vibration system.
z, or a switching circuit (60) for switching to the natural frequency f 02 ≒ 3 kHz of the second vibration system is connected to the energizing section (6), and the switching circuit
According to (60), when the frequency of the current supplied to the coil (40) by the current supply unit (6) is set to about 100 Hz, the first vibrating body (3) vibrates more than the second vibrating body (4), and is exclusively used. In addition, the notification by the vibration of the device can be realized. The switching circuit (60) causes the current-carrying section (6) to increase the frequency of the current flowing through the coil (40) by about 3 kHz.
When z is set, the second vibrating body (4) vibrates more than the first vibrating body (3), and it is possible to realize notification mainly by generating sound.
【0015】なお、第1振動体(3)がケース(50)(51)に
衝突することにより振動を伝達する場合、第1振動体
(3)及びケース(50)(51)が衝突によって破損することを
防ぐために、図1(a)及び(b)のように、第1振動
体(3)における衝突する部分にゴム等の緩衝材(7)を配
備することが望ましい。前記緩衝材(7)は、ケース(50)
(51)における衝突する部分に配備してもよい。When the first vibrator (3) transmits vibration by colliding with the cases (50) and (51), the first vibrator (3)
In order to prevent the case (3) and the cases (50) and (51) from being damaged by the collision, as shown in FIGS. 1 (a) and (b), the collision part of the first vibrating body (3) is cushioned with rubber or the like. It is desirable to provide a material (7). The cushioning material (7) is a case (50)
It may be arranged at the part where the collision occurs in (51).
【0016】上記実施形態の説明は、本発明を説明する
ためのものであって、特許請求の範囲に記載の発明を限
定し、或は範囲を減縮する様に解すべきではない。又、
本発明の各部構成は上記実施形態に限らず、特許請求の
範囲に記載の技術的範囲内で種々の変形が可能であるこ
とは勿論である。例えば、本実施形態では、各部材の形
状を円形にし、第1振動体(3)の上方に第2振動体(4)
を配備したが、永久磁石(30)による磁界とコイル(40)に
流れる電流とによって、第1振動体(3)及び第2振動体
(4)が振動可能な方向に電磁力が働くように配置しさえ
すれば、各部材の形状及び位置は任意に選択できる。同
様に、第1振動系に音波を発生するための振動板を配備
して音源とし、第2振動系をケース(50)(51)を介して機
器に振動を伝達する振動源とすることもできる。なお、
ケース(50)(51)に形成される開口部(52)の位置は、音源
の近くであることが望ましい。また、機器の振動または
音が使用者によって感知できさえすれば、各振動系の質
量またはバネ係数を任意に設定できる。また、通電部
(6)が生成する電流は、図2(a)及び(b)のよう
に、周期的に電流の向きが変わる交流波形であるのが望
ましい。しかしながら、ある物体を強制的に振動させる
には、該物体に周期的に変化する外力を加えればよく、
従って、コイル(40)通電する電流は、周波数が一定であ
りさえすれば、交流波形のように、1周期の間の平均電
流値がゼロである必要はなく、さらに、電流の波形も、
正弦波、三角波等任意の周期的に変化する波形が利用で
きる。さらに、各振動系は、本実施形態では、ケース(5
0)(51)内に収納されたが、機器に直接配備することもで
きる。すなわち、固定部材(5)は、機器自体または機器
に固定される部材であれば、任意に選択できる。The description of the above embodiments is for the purpose of illustrating the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. or,
The configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims. For example, in the present embodiment, the shape of each member is circular, and the second vibrating body (4) is located above the first vibrating body (3).
The first vibrating body (3) and the second vibrating body are provided by the magnetic field of the permanent magnet (30) and the current flowing through the coil (40).
The shape and position of each member can be arbitrarily selected as long as (4) is arranged so that the electromagnetic force acts in a vibrable direction. Similarly, the first vibration system may be provided with a diaphragm for generating a sound wave to provide a sound source, and the second vibration system may be provided as a vibration source for transmitting vibration to equipment via the cases (50) and (51). it can. In addition,
It is desirable that the positions of the openings (52) formed in the cases (50) and (51) be near the sound source. Also, as long as the vibration or sound of the device can be sensed by the user, the mass or the spring coefficient of each vibration system can be set arbitrarily. Also, the energizing section
The current generated by (6) is preferably an AC waveform in which the direction of the current changes periodically as shown in FIGS. 2 (a) and 2 (b). However, in order to forcibly vibrate a certain object, it is sufficient to apply an external force that periodically changes to the object,
Therefore, as long as the frequency is constant, the current flowing through the coil (40) does not need to have an average current value of zero during one cycle as in the case of an AC waveform.
Any periodically changing waveform such as a sine wave and a triangular wave can be used. Further, in this embodiment, each vibration system is a case (5
0) Although housed in (51), it can also be deployed directly to equipment. That is, the fixing member (5) can be arbitrarily selected as long as it is a member fixed to the device itself or the device.
【図1】本実施形態における報知用振動発生装置を示す
図であり、(a)は分解図、(b)は縦端面図である。FIGS. 1A and 1B are diagrams showing a notification vibration generating device according to an embodiment, wherein FIG. 1A is an exploded view and FIG. 1B is a vertical end view.
【図2】本実施形態における動作を示す図1(b)の要
部拡大図であり、(a)はコイルの一方向に電流を流し
たときを示し、(b)はその反対方向に流したときを示
す。FIGS. 2A and 2B are enlarged views of a main part of FIG. 1B showing an operation in the present embodiment, in which FIG. 2A shows a case where a current flows in one direction of a coil, and FIG. Show when
【図3】本実施形態において、コイルに流す電流の周波
数に対する振動体の振幅特性を示すグラフである。FIG. 3 is a graph showing an amplitude characteristic of a vibrating body with respect to a frequency of a current flowing through a coil in the embodiment.
【図4】従来の発音装置を示す図であり、(a)は分解
図、(b)は縦端面図である。4A and 4B are diagrams showing a conventional sound generating device, wherein FIG. 4A is an exploded view and FIG. 4B is a vertical end view.
【図5】従来の振動発生装置を示す斜視図である。FIG. 5 is a perspective view showing a conventional vibration generator.
(1) 第1バネ体 (2) 第2バネ体 (3) 第1振動体 (4) 第2振動体 (5) 固定部材 (6) 通電部 (30) 永久磁石 (40) コイル (1) First spring body (2) Second spring body (3) First vibrating body (4) Second vibrating body (5) Fixed member (6) Current-carrying part (30) Permanent magnet (40) Coil
Claims (4)
よって固定部材(5)に支持された第1振動体(3)と、前
記永久磁石(30)の磁束と交差するように配置されたコイ
ル(40)を具え、第2バネ体(2)によって固定部材(5)に
支持された第2振動体(4)と、前記コイル(40)に接続さ
れ、設定された所定周波数の電流をコイル(40)に通電す
る通電部(6)とから構成され、前記第1振動体(3)及び
第1バネ体(1)によって形成された第1振動系と、前記
第2振動体(4)及び第2バネ体(2)によって形成された
第2振動系のうちの一方は、周波数が可聴範囲である音
波を生成して外部に伝搬する音源として使用され、他方
の振動系は、固定部材(5)に振動を伝達して機器を振動
させる振動源として使用されることを特徴とする報知用
振動発生装置。1. A permanent magnet (30), which intersects a first vibrating body (3) supported by a fixed member (5) by a first spring body (1) and a magnetic flux of the permanent magnet (30). A coil (40) arranged as described above, a second vibrating body (4) supported by a fixed member (5) by a second spring body (2), and the coil (40) are connected and set. A first vibrating system formed by the first vibrating body (3) and the first spring body (1); and a first vibrating system formed by the first vibrating body (3) and the first spring body (1). One of the second vibrating system formed by the second vibrating body (4) and the second spring body (2) is used as a sound source that generates a sound wave whose frequency is in an audible range and propagates the sound wave to the outside, and The vibration system for notification is characterized in that the vibration system is used as a vibration source for transmitting vibration to the fixed member (5) to vibrate the device.
イル(40)に通電する電流の周波数を、第1振動系の固有
振動数f01に略一致する周波数、または、第2振動系の
固有振動数f02に略一致する周波数に切り替える切替回
路(60)を具える、請求項1に記載の報知用振動発生装
置。2. A frequency of a current that is connected to the current-carrying part (6) and that flows through the coil (40) with the current-carrying part (6) substantially equals the natural frequency f01 of the first vibration system, or comprising a switching circuit (60) for switching the frequency substantially coincides with the natural frequency f 02 of the second vibration system, notifying vibration generator according to claim 1.
ち振動源として用いる方は、衝突によって固定部材(5)
に振動を伝達することを特徴とする、請求項1または請
求項2に記載の報知用振動発生装置。3. The one of the first vibrating body (3) and the second vibrating body (4), which is used as a vibration source, is fixed by a collision (5).
The vibration generating device for notification according to claim 1 or 2, wherein the vibration is transmitted to the vibration generating device.
ち振動源として用いる方、或いは、固定部材(5)におい
て、振動の際に衝突する部分に緩衝材(7)を配備するこ
とを特徴とする、請求項3に記載の報知用振動発生装
置。4. A cushioning material (7) at a portion of the first vibrating body (3) and the second vibrating body (4) used as a vibration source or at a portion of the fixed member (5) that collides during vibration. The notification vibration generating apparatus according to claim 3, wherein a warning is provided.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16139996A JP2877758B2 (en) | 1996-06-21 | 1996-06-21 | Vibration generator for information |
KR1019980710447A KR100348540B1 (en) | 1996-06-21 | 1997-06-20 | Vibration generator for reporting and portable communication equipment using the same |
US09/202,663 US6404085B2 (en) | 1996-06-21 | 1997-06-20 | Vibration generator for reporting and portable communication equipment using the same |
BR9709837A BR9709837A (en) | 1996-06-21 | 1997-06-20 | Vibration notification generator and portable communications device on which the generator is used |
PCT/JP1997/002147 WO1997048502A1 (en) | 1996-06-21 | 1997-06-20 | Vibration generator for reporting and portable communication equipment using the same |
DE69738820T DE69738820D1 (en) | 1996-06-21 | 1997-06-20 | VIBRATION AMPLIFIER FOR SIGNALING AND APPLICATION IN A PORTABLE COMMUNICATION DEVICE |
EP97927420A EP0906790B1 (en) | 1996-06-21 | 1997-06-20 | Vibration generator for reporting and portable communication equipment using the same |
CN97197223A CN1116123C (en) | 1996-06-21 | 1997-06-20 | Vibration generator for reporting and portable communication equipment using the same |
CA002258762A CA2258762C (en) | 1996-06-21 | 1997-06-20 | Notifying vibration generator and portable communications device wherein the generator is used |
AU31911/97A AU714329B2 (en) | 1996-06-21 | 1997-06-20 | Notifying vibration generator and portable communications device wherein the generator is used |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16139996A JP2877758B2 (en) | 1996-06-21 | 1996-06-21 | Vibration generator for information |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1014194A true JPH1014194A (en) | 1998-01-16 |
JP2877758B2 JP2877758B2 (en) | 1999-03-31 |
Family
ID=15734363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16139996A Expired - Lifetime JP2877758B2 (en) | 1996-06-21 | 1996-06-21 | Vibration generator for information |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2877758B2 (en) |
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WO2000002303A1 (en) * | 1998-07-06 | 2000-01-13 | Sanyo Electric Co., Ltd. | Sound/vibration generator |
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US11837936B2 (en) | 2012-05-22 | 2023-12-05 | Minebea Mitsumi, Inc. | Vibrator generator having swing unit, frame and elastic member |
JP2013255388A (en) * | 2012-06-08 | 2013-12-19 | Minebea Co Ltd | Holder for vibration generator and vibration generator |
US10350637B2 (en) | 2013-01-22 | 2019-07-16 | Minebea Co., Ltd. | Vibration generator moving vibrator by magnetic field generated by coil and vibrator-mounted holder used in vibration-generator |
US10780457B2 (en) | 2013-01-22 | 2020-09-22 | Minebea Mitsumi Inc. | Vibration generator moving vibrator by magnetic field generated by coil and vibrator-mounted holder used in vibration-generator |
US9989437B2 (en) | 2013-01-22 | 2018-06-05 | Minebea Co., Ltd. | Vibration generator moving vibrator by magnetic field generated by coil and vibrator-mounted holder used in vibration-generator |
US11642696B2 (en) | 2013-01-22 | 2023-05-09 | Minebea Mitsumi Inc. | Vibration generator moving vibrator by magnetic field generated by coil and vibrator-mounted holder used in vibration-generator |
US11904359B2 (en) | 2013-01-22 | 2024-02-20 | Minebea Mitsumi Inc. | Vibration generator moving vibrator by magnetic field generated by coil and vibrator-mounted holder used in vibration-generator |
CN113517551A (en) * | 2021-07-12 | 2021-10-19 | 北京邮电大学 | Permanent magnet mechanical antenna system based on vibration form and communication method |
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