JPH0134475Y2 - - Google Patents
Info
- Publication number
- JPH0134475Y2 JPH0134475Y2 JP2397982U JP2397982U JPH0134475Y2 JP H0134475 Y2 JPH0134475 Y2 JP H0134475Y2 JP 2397982 U JP2397982 U JP 2397982U JP 2397982 U JP2397982 U JP 2397982U JP H0134475 Y2 JPH0134475 Y2 JP H0134475Y2
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- coil
- permanent magnet
- iron core
- diaphragm
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 4
- 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 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Description
【考案の詳細な説明】
本考案は各種機器におけて音響出力用に使用す
る電磁式ブザーに関する。[Detailed Description of the Invention] The present invention relates to an electromagnetic buzzer used for sound output in various devices.
電磁式ブザーにあつては、入力信号が供給され
るコイルの末端処理をどのようにするかが一つの
問題になつている。第１の例ではコイルの末端が
そのままブザーケースの外方へ導き出されている
が、これによると断線事故が起き易く、したがつ
てこれを防止するためにコイルの線径が太く設定
される。しかしこれによると必要なコイルアンペ
アターン数を得るのにコイルの巻径が大となり大
形化する。第２の例では、コイルの末端に十分な
強度の被覆リード線を接続し、このリード線をケ
ース外方へ取り出している。しかしこれによると
組立が面倒になる。また第３の例では、ケース底
部にステムを植設したプリント基板を配設し、こ
のステムにコイルの末端を接続している。しかし
これによると部品点数が増え、コストがアツプす
る。 One problem with electromagnetic buzzers is how to process the end of the coil to which the input signal is supplied. In the first example, the end of the coil is led out of the buzzer case as it is, but this tends to cause wire breakage, so to prevent this, the wire diameter of the coil is set large. However, according to this method, the winding diameter of the coil becomes large in order to obtain the required number of coil ampere turns, resulting in an increase in size. In the second example, a coated lead wire with sufficient strength is connected to the end of the coil, and this lead wire is taken out to the outside of the case. However, this makes assembly difficult. In the third example, a printed circuit board with a stem embedded therein is provided at the bottom of the case, and the end of the coil is connected to this stem. However, this increases the number of parts and costs.
そこで本考案は上記先行技術の欠点を解消すべ
く考案したものであつて、以下その一実施例につ
いて説明する。 Therefore, the present invention was devised to eliminate the drawbacks of the above-mentioned prior art, and one embodiment thereof will be described below.
図面において、プラスチツクのブザーケース１
の開口下部に円板状の第１ヨーク２が設けられて
あり、このヨーク２の中央に鉄心３と永久磁石４
が同軸的に積層状態で載置されている。第１ヨー
ク２と永久磁石４と鉄心３は互いに磁気的に吸着
しているだけであつて、永久磁石４は第１ヨーク
２の凹部５によつて位置決めされ、また鉄心３は
ヨーク２の上面に固着された焼結コイル６によつ
て位置決めされている。第１ヨーク２の外周部に
はマイラー等の絶縁材７を介して円筒状の第２ヨ
ーク８の下部が接合固着し、この第２ヨーク８の
上端面に振動板９の外周部が保持されて鉄心４に
対して所定のギヤツプをおいて対向している。そ
してコイル６の末端が導電性接着剤１０を介して
第１ヨーク２の上面と第２ヨーク８の凹部８ａに
それぞれ電気的に接続され、両ヨーク２，８にコ
イル６への入力信号が供給される。 In the drawing, plastic buzzer case 1
A disk-shaped first yoke 2 is provided at the bottom of the opening, and an iron core 3 and a permanent magnet 4 are placed in the center of this yoke 2.
are placed coaxially in a stacked state. The first yoke 2, the permanent magnet 4, and the iron core 3 are only magnetically attracted to each other, and the permanent magnet 4 is positioned by the recess 5 of the first yoke 2. The position is determined by a sintered coil 6 fixed to the sintered coil 6. The lower part of a cylindrical second yoke 8 is bonded and fixed to the outer circumference of the first yoke 2 via an insulating material 7 such as mylar, and the outer circumference of a diaphragm 9 is held on the upper end surface of the second yoke 8. It faces the iron core 4 with a predetermined gap therebetween. The ends of the coil 6 are electrically connected to the upper surface of the first yoke 2 and the recess 8a of the second yoke 8 via a conductive adhesive 10, and input signals to the coil 6 are supplied to both yokes 2 and 8. be done.
なお、本実施例において絶縁材７は第１ヨーク
２または第２ヨーク８に直線コーテイングにより
形成することも可能である。 In this embodiment, the insulating material 7 can also be formed on the first yoke 2 or the second yoke 8 by linear coating.
この構成によると、コイル６の末端処理のため
に特別の部品を追加する必要がないからコストア
ツプすることがなく、またコイル６の断線が起き
難いから線径の細い銅線が使用でき、したがつて
十分なアンペアターン数を得るのにコイル巻径が
小径で済み、可型化が可能である。加えてこの構
成によれば、永久磁石４が従来の如く中空にする
必要がないから小容積でも十分なエネルギ積を持
つことができ、また磁気回路が第２ヨーク８によ
つて振動板９に閉じているから磁気効率が高くな
り、小電流による駆動ができる。しかも振動板９
を保持する第２ヨーク８は高精度に加工できるか
ら、振動板９と鉄心３間のギヤツプ精度が良くな
り、その調整も不要である。また組立も容易で安
価にて製造できる。 According to this configuration, there is no need to add special parts for the end treatment of the coil 6, so there is no need to increase costs, and since the coil 6 is less likely to break, copper wire with a thin wire diameter can be used. Therefore, the coil winding diameter needs to be small to obtain a sufficient number of ampere turns, and it can be made moldable. In addition, according to this configuration, the permanent magnet 4 does not need to be hollow as in the conventional case, so it can have a sufficient energy product even in a small volume, and the magnetic circuit is connected to the diaphragm 9 by the second yoke 8. Since it is closed, magnetic efficiency is high and it can be driven with a small current. Moreover, the diaphragm 9
Since the second yoke 8 that holds the diaphragm can be processed with high precision, the gap precision between the diaphragm 9 and the iron core 3 is improved, and adjustment thereof is not necessary. It is also easy to assemble and can be manufactured at low cost.
図面は本考案の一実施例を示す断面図である。
１……ブザーケース、２……第１ヨーク、３…
…鉄心、４……永久磁石、６……コイル、７……
絶縁材、８……第２ヨーク、９……振動板。
The drawing is a sectional view showing an embodiment of the present invention. 1... Buzzer case, 2... First yoke, 3...
...Iron core, 4...Permanent magnet, 6...Coil, 7...
Insulating material, 8...second yoke, 9...diaphragm.
Claims (1)
が同軸的に積層して配置され、上記第１ヨーク上
にコイルが上記鉄心と上記永久磁石を取り囲むよ
うに配置され、上記コイルの外方で円筒状の第２
ヨークが上記第１ヨークの外周部に絶縁材を介し
て接合し、上記第１および第２の両ヨークに上記
コイルの末端がそれぞれ電気的に接続され、上記
両ヨークが上記コイル用の信号入力端子になつて
いることを特徴とする電磁式ブザー。 An iron core and a permanent magnet are coaxially stacked in the center of a disk-shaped first yoke, and a coil is placed on the first yoke to surround the iron core and the permanent magnet. A cylindrical second
A yoke is joined to the outer periphery of the first yoke via an insulating material, the ends of the coil are electrically connected to both the first and second yokes, and the two yokes provide signal input for the coil. An electromagnetic buzzer characterized by being a terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2397982U JPS58127797U (en) | 1982-02-22 | 1982-02-22 | Electromagnetic buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2397982U JPS58127797U (en) | 1982-02-22 | 1982-02-22 | Electromagnetic buzzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58127797U JPS58127797U (en) | 1983-08-30 |
| JPH0134475Y2 true JPH0134475Y2 (en) | 1989-10-19 |
Family
ID=30035992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2397982U Granted JPS58127797U (en) | 1982-02-22 | 1982-02-22 | Electromagnetic buzzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58127797U (en) |
-
1982
- 1982-02-22 JP JP2397982U patent/JPS58127797U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58127797U (en) | 1983-08-30 |
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