JPH0733516Y2 - Inner magnet type magnetic circuit - Google Patents
Inner magnet type magnetic circuitInfo
- Publication number
- JPH0733516Y2 JPH0733516Y2 JP1990066616U JP6661690U JPH0733516Y2 JP H0733516 Y2 JPH0733516 Y2 JP H0733516Y2 JP 1990066616 U JP1990066616 U JP 1990066616U JP 6661690 U JP6661690 U JP 6661690U JP H0733516 Y2 JPH0733516 Y2 JP H0733516Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic circuit
- magnet type
- inner magnet
- speaker
- yoke
- 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 - Fee Related
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、車載用等の限られた空間に取り付けられる小
型内磁型スピーカの磁気回路に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a magnetic circuit of a small inner magnet type speaker which is mounted in a limited space such as for vehicle use.
［従来の技術］ 従来、車載用等において、磁気回路の中心にねじ穴を設
け、スピーカバッフルやキャビネット等に、ボルトによ
りスピーカが固定、取り付けできるものは外磁型のみで
あり、内磁型は接合治具を使用して取り付けを行ってい
た。[Prior Art] Conventionally, in a vehicle, etc., a screw hole is provided in the center of a magnetic circuit, and a speaker can be fixed and attached to a speaker baffle, a cabinet, etc. by a bolt only as an outer magnet type, and as for an inner magnet type. It was attached using a joining jig.
［解決しようとする課題］ 従来、外磁型はポール底部に容易にスピーカ固定用ねじ
穴が形成できたが、内磁型はマグネットに穿孔できない
為、ボルトによるスピーカ固定用ねじ穴が形成できず、
接合治具を用いて、スピーカバッフルやキャビネット等
に取り付けを行っていた。しかし接合治具を用いると部
品点数が増え、工数も掛かるため、コストが高くつく欠
点があった。そこで本考案は、取り付けに接合治具を要
した内磁型磁気回路を用いたスピーカを、接合治具を要
せずボルトにより取り付けが可能とすることを目的とす
る。[Problems to be solved] Conventionally, the outer magnet type can easily form a speaker fixing screw hole at the bottom of the pole, but the inner magnet type cannot form a hole in the magnet, and therefore the speaker fixing screw hole cannot be formed by a bolt. ,
It was attached to a speaker baffle, cabinet, etc. using a joining jig. However, the use of a joining jig increases the number of parts and the number of steps, resulting in a high cost. Therefore, an object of the present invention is to enable a speaker using an inner magnet type magnetic circuit, which requires a joining jig for attachment, to be attached by a bolt without using a joining jig.
［課題を解決するための手段］ 内磁型磁気回路において、スピーカ１と、リング状マグ
ネット２と、底面にスピーカ固定用ねじ穴又は貫通穴3b
が形成されたヨーク３と、前記プレート１と前記リング
状マグネット２と前記ヨーク３とにより形成される中心
部の空間に固着される非磁性材から成るナット（４）と
により構成されたことを特徴とする内磁型磁気回路であ
る。[Means for Solving the Problems] In the inner magnet type magnetic circuit, the speaker 1, the ring-shaped magnet 2, and a speaker fixing screw hole or through hole 3b on the bottom surface.
And a nut (4) made of a non-magnetic material and fixed to a central space formed by the plate 1, the ring-shaped magnet 2 and the yoke 3. It is a characteristic inner magnet type magnetic circuit.
［作用］ リング状マグネットを使用し、ねじ穴が形成されること
で、ボルト取り付けが可能になる。[Operation] By using the ring-shaped magnet and forming the screw hole, the bolt can be attached.
［実施例］ 上記した目的を達成するための本考案に係る実施例を第
１図及び第２図を用いて説明する。第１図は、本考案の
第１実施例で、内磁型磁気回路において、マグネットを
リング状マグネット２とし、ヨーク３底面の中心部に貫
通穴3bが形成され、より長いスピーカ固定用ねじ穴の形
成のために、プレート１とリング状マグネット２とヨー
ク３の中心部に形成される円筒状の空間に、樹脂等によ
る非磁性材から成るナット４を固着したものである。ナ
ット４に非磁性材を用いたのは、プレート１とヨーク３
との磁気的短絡を防ぐためである。[Embodiment] An embodiment according to the present invention for achieving the above-mentioned object will be described with reference to FIGS. 1 and 2. FIG. 1 is a first embodiment of the present invention. In an inner magnet type magnetic circuit, the magnet is a ring-shaped magnet 2, a through hole 3b is formed in the center of the bottom surface of the yoke 3, and a longer screw hole for fixing a speaker is provided. In order to form the above, the nut 4, which is made of a non-magnetic material such as resin, is fixed to the cylindrical space formed in the center of the plate 1, the ring-shaped magnet 2, and the yoke 3. The non-magnetic material is used for the nut 4 because of the plate 1 and the yoke 3.
This is to prevent a magnetic short circuit with.
第２図は、本考案の第２実施例で、非磁性材から成るナ
ット４の外径より小さい径の貫通穴3bが形成されたヨー
ク３とプレート１に、非磁性材から成るナット４が挟持
され、固着されたものである。FIG. 2 shows a second embodiment of the present invention, in which a yoke 4 made of a non-magnetic material is attached to a yoke 3 and a plate 1 each having a through hole 3b having a diameter smaller than the outer diameter of the nut 4 made of a non-magnetic material. It is sandwiched and fixed.
また上記実施例の変形例として、非磁性材から成るナッ
ト４のねじ穴と同じねじ穴が形成されたヨーク３と、プ
レート１とによりナット４が挟持された構成、あるいは
上記リング状マグネットに希土類マグネットを用い、磁
束を大きくした構成もある（図面省略）。Further, as a modified example of the above-mentioned embodiment, the nut 4 is sandwiched by the plate 3 and the yoke 3 having the same screw hole as the screw hole of the nut 4 made of a non-magnetic material, or the ring-shaped magnet is provided with a rare earth element. There is also a configuration that uses a magnet to increase the magnetic flux (drawing omitted).
以上、本考案に係る実施例を基に詳述したが、本考案の
実施態様は、実施例の構造に限定されるものではなく、
前記したクレーム記載の構成用件を具備し、本考案にい
う作用を呈し、以下に述べる効果を有する限りにおい
て、適宜改変して実施しうるものである。Although the embodiment of the present invention has been described in detail above, the embodiment of the present invention is not limited to the structure of the embodiment.
The present invention can be appropriately modified and implemented as long as it has the constitutional requirements described in the above-mentioned claims, exhibits the action of the present invention, and has the effects described below.
［効果］ 本考案により、内磁型磁気回路を用いた小型又は薄型の
スピーカが、スピーカバッフルやキャビネット等に、ボ
ルトにより容易にスピーカが固定、取り付けられるよう
になり、接合治具等が不要になりコストダウンになる効
果がある。[Effects] According to the present invention, a small or thin speaker using an internal magnetic circuit can be easily fixed and attached to a speaker baffle, a cabinet, or the like by a bolt, and a joining jig or the like is unnecessary. It has the effect of cost reduction.
第１図は第１実施例の断面図、第２図は第２実施例の断
面図である。１はプレート、２はリング状マグネット、
３はヨーク、3bは貫通穴、４は非磁性材から成るナット
である。FIG. 1 is a sectional view of the first embodiment, and FIG. 2 is a sectional view of the second embodiment. 1 is a plate, 2 is a ring-shaped magnet,
Reference numeral 3 is a yoke, 3b is a through hole, and 4 is a nut made of a non-magnetic material.
Claims (1)
磁気回路において、プレート（１）と、リング状マグネ
ット（２）と、底面にスピーカ固定用ねじ穴又は貫通穴
（3b）が形成されたヨーク（３）と、前記プレート
（１）と前記リング状マグネット（２）と前記ヨーク
（３）とにより形成される中心部の空間に固着される非
磁性材から成るナット（４）とにより構成されたことを
特徴とする内磁型磁気回路。1. A magnetic circuit for an inner magnet type speaker in an electroacoustic transducer, wherein a plate (1), a ring-shaped magnet (2) and a speaker fixing screw hole or through hole (3b) are formed on the bottom surface. Consists of a yoke (3), a nut (4) made of a non-magnetic material and fixed in a central space formed by the plate (1), the ring-shaped magnet (2) and the yoke (3). An inner magnet type magnetic circuit characterized by being made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990066616U JPH0733516Y2 (en) | 1990-06-22 | 1990-06-22 | Inner magnet type magnetic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990066616U JPH0733516Y2 (en) | 1990-06-22 | 1990-06-22 | Inner magnet type magnetic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0425397U JPH0425397U (en) | 1992-02-28 |
| JPH0733516Y2 true JPH0733516Y2 (en) | 1995-07-31 |
Family
ID=31599478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990066616U Expired - Fee Related JPH0733516Y2 (en) | 1990-06-22 | 1990-06-22 | Inner magnet type magnetic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0733516Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5843352Y2 (en) * | 1979-06-05 | 1983-09-30 | 太陽誘電株式会社 | Magnetic circuit of moving ring type acoustic transducer |
| JPH01167797U (en) * | 1988-05-13 | 1989-11-27 |
-
1990
- 1990-06-22 JP JP1990066616U patent/JPH0733516Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0425397U (en) | 1992-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |