JPS6137073Y2 - - Google Patents
Info
- Publication number
- JPS6137073Y2 JPS6137073Y2 JP11714180U JP11714180U JPS6137073Y2 JP S6137073 Y2 JPS6137073 Y2 JP S6137073Y2 JP 11714180 U JP11714180 U JP 11714180U JP 11714180 U JP11714180 U JP 11714180U JP S6137073 Y2 JPS6137073 Y2 JP S6137073Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- circuit board
- case
- piezoelectric buzzer
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Calculators And Similar Devices (AREA)
Description
【考案の詳細な説明】
本考案は報音装置を備えた小型電子機器に関す
る。[Detailed Description of the Invention] The present invention relates to a small electronic device equipped with a sound alarm device.
小型電子機器、例えば小型電子式計算機におい
ては、操作用として複数の押釦スイツチを設けて
おり、これら押釦スイツチの押釦は計算機ケース
の上面部に形成した釦孔に配置してある。 2. Description of the Related Art Small electronic devices, such as small electronic calculators, are provided with a plurality of push button switches for operation, and the push buttons of these push button switches are arranged in button holes formed in the upper surface of the computer case.
しかして、例えば時計機能を備えた小型電子式
計算機では、設定時刻を電子音で報知するための
報音装置として圧電ブザーが設けてある。 For example, in a small electronic calculator equipped with a clock function, a piezoelectric buzzer is provided as a sounding device for notifying the set time with an electronic sound.
従来、この種小型電子式計算機においては、圧
電ブザーを回路基板の上面側にてケースと回路基
板との間に設け、ケース上面部に圧電ブザーに対
応して放音孔を形成する構造が採用されている。
これは圧電ブザーの電子音を使用者が最も聞き易
いケース上面側へ放出するためである。しかしな
がら、回路基板上面側には押釦スイツチの押釦、
可動接点や表示パネルなどのその他の電子部品が
設けられるので、圧電ブザーはこれらを避けたス
ペースに設けるために、ケース横方向のスペース
が拡大して大型化する欠点がある。また、放音孔
は塵埃などのケース内侵入を防止するために小孔
や細溝を集合した構成となつているので、樹脂成
形用の金型あるいはプレス加工用の型が複雑で高
価となり、しかも加工に手数を要する欠点があ
る。 Conventionally, this type of small electronic calculator has adopted a structure in which a piezoelectric buzzer is installed between the case and the circuit board on the top side of the circuit board, and a sound emission hole is formed on the top of the case to correspond to the piezoelectric buzzer. has been done.
This is because the electronic sound of the piezoelectric buzzer is emitted toward the top of the case where it is easiest for the user to hear. However, the push button of the push button switch is on the top side of the circuit board.
Since other electronic components such as movable contacts and a display panel are provided, the piezoelectric buzzer has to be installed in a space that avoids these, which has the disadvantage of increasing the space in the lateral direction of the case, resulting in an increase in size. In addition, since the sound emitting hole is composed of a collection of small holes and narrow grooves to prevent dust and other particles from entering the case, the mold for resin molding or the mold for press processing becomes complicated and expensive. Moreover, it has the disadvantage that it requires time and effort to process.
本考案は前記事情に鑑みてなされたもので、圧
電ブザーを回路基板下面側に設けてケース横方向
の大型化を防ぎ且つケースの釦孔を利用して放音
を行ない放音孔を省略した報音装置を備えた小型
電子機器を提供するものである。 The present invention was developed in view of the above circumstances, and a piezoelectric buzzer is installed on the bottom side of the circuit board to prevent the case from increasing in size in the lateral direction, and the sound is emitted using the button hole of the case, thereby omitting the sound emitting hole. The present invention provides a small electronic device equipped with a sound alarm device.
以下本考案を図面で示す一実施例について説明
する。図面は本考案を適用した小型電子式計算機
を示すものである。図中１は合成樹脂製の上部ケ
ース、２は上部ケース１に組合せられる合成樹脂
製の下部ケースである。上部ケース１はその略半
分のスペースに複数の釦孔３が並べて形成してあ
り、これらには押釦スイツチ用の押釦４がケース
内側から挿入されて各々配置してある。なお、上
部ケース１の他のスペースには、表示窓５、電源
スイツチ６のスイツチ孔７が設けてある。両ケー
ス１，２の内部にはケース１，２と同形をなす樹
脂フイルム製の回路基板８が層構造的に設けてあ
り、その上面には略半分のスペースの複数の固定
接点９が上部ケース１の釦孔３に各々対向して並
べて形成されている。この固定接点９は一対の接
点部を組合せた形式をなすもので、各固定接点９
の接点部は配線で接続してある。回路基板８の上
面には固定接点スペース以外のスペースにて、上
部ケース１の表示窓５に対向した表示パネル１０
やその他の電子部品（図示せず）が設けられ、配
線（図示せず）が形成してある。回路基板８の上
面と上部ケース１との間には、上部ケース１の釦
孔３形成スペースに応じた大きさをなす絶縁ゴム
製の接点ゴムシート１１が重ねて設けてあり、こ
れには上側に膨出する複数の膨出部１２が釦孔３
に各々対向して並べて形成され、これら膨出部１
２の頭部下側には可動接点１３が取付けてある。
しかして、押釦４、膨出部１２、可動接点１３お
よび固定接点９により押釦スイツチが構成され、
押釦４を押圧して膨出部１２を押下げると可動接
点１３が固定接点９の一対の接点部に共通に接触
して固定接点９を閉成するものである。 An embodiment of the present invention will be described below with reference to drawings. The drawing shows a small electronic calculator to which the present invention is applied. In the figure, 1 is an upper case made of synthetic resin, and 2 is a lower case made of synthetic resin which is combined with the upper case 1. The upper case 1 has a plurality of button holes 3 lined up in approximately half the space thereof, and push buttons 4 for push button switches are inserted into each of these from the inside of the case. Note that a display window 5 and a switch hole 7 for a power switch 6 are provided in other spaces of the upper case 1. Inside both cases 1 and 2, a circuit board 8 made of a resin film having the same shape as cases 1 and 2 is provided in a layered structure, and on the top surface thereof, a plurality of fixed contacts 9 occupying approximately half the space are arranged in the upper case. They are formed side by side, facing the button holes 3 of No. 1, respectively. This fixed contact 9 is in the form of a combination of a pair of contact parts, and each fixed contact 9
The contacts are connected by wiring. A display panel 10 facing the display window 5 of the upper case 1 is mounted on the upper surface of the circuit board 8 in a space other than the fixed contact space.
and other electronic components (not shown) are provided, and wiring (not shown) is formed. Between the upper surface of the circuit board 8 and the upper case 1, contact rubber sheets 11 made of insulating rubber and having a size corresponding to the space for forming the button holes 3 of the upper case 1 are stacked. A plurality of bulging portions 12 bulging out into the button hole 3
These bulging portions 1 are formed in parallel and facing each other.
A movable contact 13 is attached to the lower side of the head of 2.
Thus, the push button 4, the bulge 12, the movable contact 13, and the fixed contact 9 constitute a push button switch.
When the push button 4 is pressed to push down the bulging portion 12, the movable contact 13 commonly contacts the pair of contact portions of the fixed contact 9, thereby closing the fixed contact 9.
また、回路基板８の下面と下部ケース２との間
には、回路基板８と同形をなす合成樹脂製の基板
押え板１４が重ねて設けてある。基板押え板１４
には上部ケース１の釦孔３形成スペースの中央に
位置して圧電ブザー１７の取付凹部１５が形成し
てあり、この取付凹部１５は基板押え板１４上面
から没入するもので、底部には下面に貫通する小
孔１６が形成してある。圧電ブザー１７は振動板
１８の上面中央に圧電素子１９を貼付けたもの
で、これは基板押え板１４の取付凹部１５内に配
置され振動板１８を取付凹部１５底面に接着して
取付けてある。このため、圧電ブザー１７は回路
基板８の下面側に設けられる。振動板１８と圧電
素子１９は各々リード線（図示せず）を介して回
路基板８に接続してある。なお、取付凹部１５は
上開放部が回路基板８でほぼ閉塞されて圧電ブザ
ー１７の共鳴空間を構成している。 Further, between the lower surface of the circuit board 8 and the lower case 2, a board holding plate 14 made of synthetic resin and having the same shape as the circuit board 8 is provided in an overlapping manner. Board holding plate 14
A mounting recess 15 for the piezoelectric buzzer 17 is formed at the center of the button hole 3 forming space of the upper case 1. A small hole 16 is formed therethrough. The piezoelectric buzzer 17 has a piezoelectric element 19 affixed to the center of the upper surface of a diaphragm 18, which is disposed within the mounting recess 15 of the substrate holding plate 14, and the diaphragm 18 is attached to the bottom surface of the mounting recess 15 by bonding. For this reason, the piezoelectric buzzer 17 is provided on the lower surface side of the circuit board 8. The diaphragm 18 and the piezoelectric element 19 are each connected to the circuit board 8 via lead wires (not shown). Incidentally, the upper open portion of the mounting recess 15 is substantially closed by the circuit board 8 to constitute a resonant space for the piezoelectric buzzer 17.
さらに、回路基板８の固定接点９形成領域に
は、上下面に貫通する複数の通音孔２０が固定接
点９の間に位置して並べて形成してある。接点ゴ
ムシート１１には、上下面に貫通する複数の通音
孔２１が回路基板８の通音孔２０と対向するよう
に膨出部１２の間に位置して並べて形成してあ
る。すなわち、通音孔２０，２１は上部ケース１
の釦孔３形成領域に対応して形成される。これら
各通音孔２０，２１は圧電ブザー１７の音声を回
路基板８の上面側に導びくもので、なるべく多数
のものが取付凹部１５の上開放部に連通するよう
に位置設定する。なお、取付凹部１５の上開放部
から外れた通音孔２０，２１には、基板押え板１
４と回路基板８の隙間を介して圧電ブザー１７の
音が通過するものとする。通音孔２０，２１の大
きさおよび数は回路基板８の固定接点９および配
線と接点ゴムシート１１の膨出部１２に影響を与
えない範囲で設定する。 Further, in the area where the fixed contacts 9 are formed on the circuit board 8, a plurality of sound holes 20 penetrating the upper and lower surfaces are arranged and arranged between the fixed contacts 9. A plurality of sound holes 21 penetrating the contact rubber sheet 11 are formed side by side between the bulges 12 so as to face the sound holes 20 of the circuit board 8 . That is, the sound holes 20 and 21 are connected to the upper case 1.
It is formed corresponding to the button hole 3 forming area. These sound holes 20 and 21 guide the sound of the piezoelectric buzzer 17 to the upper surface side of the circuit board 8, and are positioned so that as many of them as possible communicate with the upper opening of the mounting recess 15. Note that the sound holes 20 and 21 that are removed from the upper open part of the mounting recess 15 are provided with the board holding plate 1.
It is assumed that the sound of the piezoelectric buzzer 17 passes through the gap between the piezoelectric buzzer 4 and the circuit board 8. The size and number of the sound holes 20 and 21 are set within a range that does not affect the fixed contacts 9 of the circuit board 8 and the wiring and the bulges 12 of the contact rubber sheet 11.
さらに、上部ケース１に形成した複数の釦孔３
は例えば四角形をなすもので、この釦孔３に挿入
する押釦４は例えば直方体をなしている。押釦４
が釦孔３内で容易に上下動できるように、釦孔３
を押釦４より稍々大きく形成してある。このた
め、各釦孔３の周縁部と各押釦４の外周面との間
には隙間が生じる。勿論、この隙間は大きな塵介
が上部ケース１内に侵入できないものである。 Furthermore, a plurality of button holes 3 formed in the upper case 1
For example, the button hole 3 has a rectangular shape, and the push button 4 inserted into the button hole 3 has a rectangular parallelepiped shape, for example. push button 4
button hole 3 so that it can easily move up and down within button hole 3.
is formed slightly larger than push button 4. Therefore, a gap is created between the peripheral edge of each button hole 3 and the outer peripheral surface of each push button 4. Of course, this gap is such that large particles cannot enter into the upper case 1.
このように構成された小型電子式計算機におい
て、報音を行なう場合には、圧電ブザー１７の圧
電素子１９に通電すると振動板１８が振動し、基
板押え板１４の取付凹部１５内の空気が振動して
所定周波数の音を発する。この圧電ブザー１７に
より発生した音は、取付凹部１５すなわち回路基
板８の下面側から各通音孔２０を通つて上面側へ
抜け、続いて接点ゴムシート１１の各通音孔２１
を通つて接点ゴムシート１１と上部ケース１との
間に空間に達する。さらに、音は接点ゴムシート
１１と上部ケース１との間の空間から、上部ケー
ス１の各釦孔３と各押釦４との間における隙間を
通つて上部ケース１の外方に放出される。この場
合、音は複数の釦孔３においてこれらに挿入した
押釦４との隙間から広い範囲に分散されて上部ケ
ース１の外方に放出される。 In the small electronic calculator configured in this way, when making a sound, when the piezoelectric element 19 of the piezoelectric buzzer 17 is energized, the diaphragm 18 vibrates, and the air in the mounting recess 15 of the board holding plate 14 vibrates. to emit a sound at a predetermined frequency. The sound generated by the piezoelectric buzzer 17 escapes from the mounting recess 15, that is, the lower surface side of the circuit board 8, through each sound hole 20, and then through each sound hole 21 of the contact rubber sheet 11.
The space between the contact rubber sheet 11 and the upper case 1 is reached through the contact rubber sheet 11 and the upper case 1. Further, the sound is emitted from the space between the contact rubber sheet 11 and the upper case 1 to the outside of the upper case 1 through the gaps between each button hole 3 and each push button 4 of the upper case 1. In this case, the sound is dispersed over a wide range and emitted to the outside of the upper case 1 through the gaps between the plurality of button holes 3 and the push buttons 4 inserted therein.
この小型電子式計算機において、圧電ブザー１
７の音を放出させるための放音構造は、上部ケー
ス１の釦孔３形成部分に対応して回路基板１の下
面側に圧電ブザー１７を設け、前記釦孔３形成部
分に対応して回路基板８と接点ゴムシート１１に
通音孔２０，２１を形成し、さらに上部ケース１
の釦孔３と押釦４との隙間を放音孔として利用す
るものである。しかして、押釦スイツチや表示パ
ネル１０などの部品が設けらえ且つ多くの接点、
配線が設けられて構成密度が大なる回路基板８の
上面側に圧電ブザー１７を設けずに、上面側に比
して部品点数や接点、配線の数が少なく構成密度
が小さな回路基板８の下面における広いスペース
を利用して圧電ブザー１７を設けている。このた
め、圧電ブザーを設けるために回路基板８を横方
向に拡大する必要がなく、上部および下部ケース
１，２の大型化を防止できる。また、圧電ブザー
１７による音は回路基板８と接点ゴムシート１１
の通音孔２０，２１を介して上部ケース１の釦孔
３形成部分まで導き、釦孔３と押釦４との隙間か
ら分散して放出するので、上部ケース１に放音孔
を形成する必要がない。このため、上部ケース１
に放音孔を形成するために、上部ケース１が合成
樹脂製である場合には成型用金型が、あるいは金
属製である場合にはプレス型が各々複雑とならず
経済的でり、加工作業も容易となる。 In this small electronic calculator, piezoelectric buzzer 1
The sound emitting structure for emitting the sound of 7 is such that a piezoelectric buzzer 17 is provided on the lower surface side of the circuit board 1 corresponding to the part where the button hole 3 is formed in the upper case 1, and a piezoelectric buzzer 17 is provided on the lower surface side of the circuit board 1 corresponding to the part where the button hole 3 is formed. Sound holes 20 and 21 are formed in the substrate 8 and the contact rubber sheet 11, and the upper case 1
The gap between the button hole 3 and the push button 4 is used as a sound emitting hole. Therefore, parts such as push button switches and the display panel 10 are provided, and many contact points,
Instead of providing the piezoelectric buzzer 17 on the top side of the circuit board 8 where wiring is provided and the configuration density is high, the bottom side of the circuit board 8 where the number of parts, contacts, and wiring is small and the configuration density is low compared to the top side. The piezoelectric buzzer 17 is provided by utilizing a large space in the area. Therefore, it is not necessary to expand the circuit board 8 in the lateral direction to provide the piezoelectric buzzer, and it is possible to prevent the upper and lower cases 1 and 2 from increasing in size. In addition, the sound produced by the piezoelectric buzzer 17 is generated between the circuit board 8 and the contact rubber sheet 11.
It is necessary to form a sound emitting hole in the upper case 1 because the sound is guided through the sound holes 20 and 21 to the part where the button hole 3 is formed in the upper case 1, and is dispersed and emitted from the gap between the button hole 3 and the push button 4. There is no. For this reason, upper case 1
In order to form the sound emitting holes in the upper case 1, a molding die is required if the upper case 1 is made of synthetic resin, or a press mold is required if the upper case 1 is made of metal. It also makes the work easier.
なお、押釦スイツチの構造は前述した実施例に
限定されず、例えば接点ゴムシートは導電ゴムで
あつても良いなど接点ゴムシートの構成は特定さ
れず、また接点ゴムシートを用いずに復帰ばねと
可動接点を個別に設けても良い。接点ゴムシート
を用いない場合には回路基板のみに通音孔を形成
する。圧電ブザーを回路基板の下面側に設ける構
成としては、実施例のように基板押えを利用する
と部品点数が少なくなる利点があるが、これに限
定されることなく必要に応じて設定する。圧電ブ
ザーは実施例のように単体のものを用いても良
く、共鳴箱内に収納したユニツト型のものでも良
い。本考案は報音装置を備えた小型電子機器に広
く利用できる。 Note that the structure of the push button switch is not limited to the above-mentioned embodiment; for example, the contact rubber sheet may be made of conductive rubber, and the structure of the contact rubber sheet is not specified. The movable contacts may be provided individually. When the contact rubber sheet is not used, the sound holes are formed only on the circuit board. As for the configuration in which the piezoelectric buzzer is provided on the lower surface side of the circuit board, the use of a board holder as in the embodiment has the advantage of reducing the number of parts, but the configuration is not limited to this and can be set as necessary. The piezoelectric buzzer may be a single unit as in the embodiment, or may be a unit type housed in a resonance box. The present invention can be widely used in small electronic equipment equipped with a sound alarm device.
本考案の報音装置を備えた小型電子機器は以上
説明したように、圧電ブザーを回路基板の下面側
に設けて機器ケースの大型化を防止し、機器ケー
スの釦孔と押釦の隙間を利用して放音を行なうの
で、機器ケースに特別に放音孔を形成する必要が
なく経済的で加工工程の合理化を図れる。 As explained above, in the small electronic device equipped with the sound alarm device of the present invention, the piezoelectric buzzer is installed on the bottom side of the circuit board to prevent the device case from increasing in size, and the gap between the button hole and push button of the device case is utilized. Since the sound is emitted by the device, there is no need to specially form a sound emitting hole in the equipment case, which is economical and allows for rationalization of the manufacturing process.
第１図は本考案の一実施例である小型電子式計
算機を示す分解斜視図、第２図は同横断面図であ
る。
１……上部ケース、２……下部ケース、３……
釦孔、４……押釦、８……回路基板、９……固定
接点、１１……接点ゴムシート、１２……膨出
部、１３……可動接点、１４……基板押え板、１
５……取付凹部、１７……圧電ブザー、２０，２
１……通音孔。
FIG. 1 is an exploded perspective view showing a small electronic calculator which is an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the same. 1... Upper case, 2... Lower case, 3...
Button hole, 4... Push button, 8... Circuit board, 9... Fixed contact, 11... Contact rubber sheet, 12... Swelling portion, 13... Movable contact, 14... Board holding plate, 1
5...Mounting recess, 17...Piezoelectric buzzer, 20,2
1...Sound hole.
Claims (1)
された機器ケースと、この機器ケースの内部にて
前記釦孔が形成された前記機器ケースの上面部に
下側に設けられた回路基板と、前機器ケースの内
部にて前記回路基板の下側に設けられた圧電ブザ
ーと、前記回路基板にその上下面を貫通して形成
され前記圧電ブザーと前記機器ケースの釦孔とを
連通する通音孔とを具備し、前記機器ケースの釦
孔とこの釦孔に挿入された前記押釦との間には、
前記圧電ブザーから発せられて前記回路基板の通
音孔を通過した音を前記機器ケースの外部へ放出
するための間隙が設けられてなる報音装置を備え
た小型電子機器。 an equipment case in which a button hole into which a switch pushbutton is inserted is formed in the upper part; a circuit board provided on the lower side of the upper part of the equipment case in which the button hole is formed inside the equipment case; A piezoelectric buzzer provided on the lower side of the circuit board inside the front equipment case, and a sound transmitter formed through the upper and lower surfaces of the circuit board to communicate the piezoelectric buzzer with the button hole of the equipment case. a hole between the button hole of the device case and the push button inserted into the button hole;
A small electronic device comprising a sound alarm device provided with a gap for emitting the sound emitted from the piezoelectric buzzer and passing through the sound hole of the circuit board to the outside of the device case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11714180U JPS6137073Y2 (en) | 1980-08-19 | 1980-08-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11714180U JPS6137073Y2 (en) | 1980-08-19 | 1980-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5742428U JPS5742428U (en) | 1982-03-08 |
| JPS6137073Y2 true JPS6137073Y2 (en) | 1986-10-27 |
Family
ID=29477937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11714180U Expired JPS6137073Y2 (en) | 1980-08-19 | 1980-08-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6137073Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0310754Y2 (en) * | 1985-03-25 | 1991-03-18 | ||
| JPH0310756Y2 (en) * | 1986-12-02 | 1991-03-18 | ||
| JPS63150071A (en) * | 1986-12-15 | 1988-06-22 | 松下電工株式会社 | Vibration type massager |
| JP5839682B2 (en) * | 2011-12-26 | 2016-01-06 | 古野電気株式会社 | Marine detector |
-
1980
- 1980-08-19 JP JP11714180U patent/JPS6137073Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5742428U (en) | 1982-03-08 |
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