JPH0529129A - Magnet device - Google Patents
Magnet deviceInfo
- Publication number
- JPH0529129A JPH0529129A JP18126891A JP18126891A JPH0529129A JP H0529129 A JPH0529129 A JP H0529129A JP 18126891 A JP18126891 A JP 18126891A JP 18126891 A JP18126891 A JP 18126891A JP H0529129 A JPH0529129 A JP H0529129A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- magnet body
- magnetic
- magnetic pole
- permeable member
- 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
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 7
- 229910001035 Soft ferrite Inorganic materials 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 6
- 239000000057 synthetic resin Substances 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract description 7
- 229910001047 Hard ferrite Inorganic materials 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 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
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は磁石装置に係り、例え
ば、家具の扉の閉鎖状態を保持する吸着具、または掲示
板などに磁石の吸着力により掲示用紙、メモなどを止着
する吸着具などにおいて、永久磁石体の表面磁束密度を
高めた磁石装置の成型性を向上したものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnet device, for example, an adsorbing tool for holding a closed state of a furniture door, or an adsorbing tool for fixing a bulletin board, a memo or the like to a bulletin board by an attractive force of a magnet. In the above, the present invention relates to a permanent magnet body having an improved surface magnetic flux density and improved moldability of a magnet device.
【０００２】[0002]
【従来の技術】従来のこの種の磁石装置は、例えば、特
開昭６２ー２６３６１４号公報に記載されているよう
に、永久磁石体の一方の例えばＮ極の磁極面を吸着面と
し、この永久磁石体の他方の例えばＳ極の磁極面に鉄板
の基板部を固着し、この鉄板の両側片部をこの永久磁石
体の側面に沿って折曲げて先端縁を前記永久磁石体の一
方のＮ極の磁極面と略同一面とし、Ｎ極およびＳ極を吸
着面に導き、永久磁石体の吸着面の表面磁束密度を約1.
4 〜1.5 倍に高めた構造が採られている。2. Description of the Related Art In a conventional magnet device of this type, as described in, for example, Japanese Patent Application Laid-Open No. 62-263614, one of permanent magnet bodies, for example, an N pole magnetic pole surface is used as an attracting surface. A substrate portion of an iron plate is fixed to the other magnetic pole surface of, for example, the S pole of the permanent magnet body. The surface is almost the same as the magnetic pole surface of the N pole, the N pole and the S pole are guided to the attraction surface, and the surface magnetic flux density of the attraction surface of the permanent magnet body is about 1.
The structure is 4 to 1.5 times higher.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の磁石装置で
は、永久磁石体と導磁性体とを個々に成型し、永久磁石
体を導磁性体に接着剤などで固着しなくてはならず、製
造工程数が多く、製造コストを低減することの障害とな
っており、また、鉄板を用いているため、成型性に問題
があり、複雑な形状が得られない問題があった。In the above-mentioned conventional magnet device, the permanent magnet body and the magnetic conductor must be individually molded, and the permanent magnet body must be fixed to the magnetic conductor with an adhesive or the like. The number of manufacturing steps is large, which is an obstacle to reducing manufacturing cost. Further, since an iron plate is used, there is a problem in moldability and a problem that a complicated shape cannot be obtained.
【０００４】本発明は上記従来の磁石装置の問題点に鑑
みなされたもので、インサート成型、または、同時成型
などにより成型性を向上し、また、複雑な形状も容易に
得られる磁石装置を提供するものである。The present invention has been made in view of the problems of the above-described conventional magnet device, and provides a magnet device in which the moldability is improved by insert molding or simultaneous molding, and a complicated shape can be easily obtained. To do.
【０００５】[0005]
【課題を解決するための手段】本発明の磁石装置は、一
方の磁極面を吸着面とした永久磁石体と、この永久磁石
体の他方の磁極面に基板部を固着し両側片部をこの永久
磁石体の側面に沿って間隙を保持して折曲げ、先端縁を
前記永久磁石体の一方の磁極面と略同一面とした導磁性
体とからなり、前記永久磁石体と導磁性体とのいずれか
一方をハードフェライトにて形成するとともに他方をフ
ェライト粉末または粒子を合成樹脂にて成型したソフト
フェライトにて形成したものである。SUMMARY OF THE INVENTION In a magnet device of the present invention, a permanent magnet body having one magnetic pole surface as an attracting surface and a base plate portion fixed to the other magnetic pole surface of the permanent magnet body, and both side half portions are The permanent magnet body is bent along a side surface of the permanent magnet body with a gap maintained, and the leading edge is substantially flush with one magnetic pole surface of the permanent magnet body. One of them is formed of hard ferrite and the other is formed of soft ferrite obtained by molding ferrite powder or particles of synthetic resin.
【０００６】[0006]
【作用】本発明の磁石装置は、導磁性体によりこの導磁
性体の基板部に当接される永久磁石体の磁極面の磁極、
例えば、Ｓ極が側片部によって導かれ、永久磁石体の吸
着面のＮ極との間に磁路が形成されて表面磁束密度が高
められる。そして、永久磁石体と導磁性体とのいずれか
を成型後に他方にインサート成型し、または、異質同時
成型によって製造が可能で、製造工程数の低減ができ
る。また、複雑な形状も成型可能となる。The magnetic device of the present invention comprises a magnetic pole on a magnetic pole surface of a permanent magnet body, which is brought into contact with the substrate portion of the magnetic conductor by the magnetic conductor.
For example, the S pole is guided by the side piece, and a magnetic path is formed between the S pole and the N pole on the attracting surface of the permanent magnet body to increase the surface magnetic flux density. Then, one of the permanent magnet body and the magnetic conducting body is molded and then the other is insert-molded, or it is possible to manufacture by heterogeneous simultaneous molding, and the number of manufacturing steps can be reduced. In addition, complex shapes can be molded.
【０００７】[0007]
【実施例】本発明の一実施例の構成を図面に基づいて説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described with reference to the drawings.
【０００８】図１において、１は一方の面側をＮ極の磁
極面２、他方の面側をＳ極の磁極面３に着磁した細長矩
形状体の永久磁石体で、焼結成型したハードフェライト
にて形成されている。In FIG. 1, reference numeral 1 is a permanent magnet body of an elongated rectangular shape, one side of which is magnetized as a magnetic pole surface 2 of N pole and the other side thereof is a magnetic pole surface 3 of S pole, which is sintered and molded. It is made of hard ferrite.
【０００９】５は導磁性体で、前記永久磁石体１の吸着
面の一方磁極面２に対向する他方の磁極面３を固着する
基板部６と、この基板部６の両側から前記永久磁石体１
の側面に沿って直角に折曲げて先端縁を前記永久磁石体
１の一方の磁極面２と略同一面とした側片部７，７とに
て略コ字状に形成されている。そして、この導磁性体５
はフェライト粉末または粒子を合成樹脂をバインダーと
して成型したソフトフェライトにて形成されている。Reference numeral 5 denotes a magnetic conductor, which is a substrate portion 6 to which the other magnetic pole surface 3 facing the one magnetic pole surface 2 of the attracting surface of the permanent magnet body 1 is fixed, and the permanent magnet body from both sides of the substrate portion 6. 1
Is formed into a substantially U-shape by being bent at a right angle along the side surface of each of the side pieces 7, 7 whose tip edge is substantially flush with the one magnetic pole surface 2 of the permanent magnet body 1. And this magnetic conductor 5
Is made of soft ferrite obtained by molding ferrite powder or particles using a synthetic resin as a binder.
【００１０】この永久磁石体１の両側面と導磁性体５の
両側片部７，７との間に間隙８を保持して導磁性体５の
基板部６に他方の磁極面３を当接固着する。A gap 8 is held between both side surfaces of the permanent magnet body 1 and both side pieces 7, 7 of the magnetic conductor 5, and the other magnetic pole surface 3 is brought into contact with the substrate portion 6 of the magnetic conductor 5. It sticks.
【００１１】そして、この永久磁石体１または導磁性体
５のいずれか一方を先に成型し、先に成型された成型体
を基にしてインサート成型により永久磁石体１と導磁性
体５とを一体に結合する。また、永久磁石体１と導磁性
体５とを異質同時成型によって一体に成型することもで
きる。Either the permanent magnet body 1 or the magnetic conductor 5 is molded first, and the permanent magnet body 1 and the magnetic conductor 5 are formed by insert molding based on the molded body molded previously. Join together. Further, the permanent magnet body 1 and the magnetic conducting body 5 can be integrally molded by heterogeneous simultaneous molding.
【００１２】この実施例の作用を説明する。図２に示す
ように、導磁性体５によりこの導磁性体５の基板部６に
当接固着される永久磁石体１の磁極面３の磁極、例え
ば、Ｓ極が側片部７，７によって導かれ、永久磁石体１
の吸着面のＮ極との間に磁路が形成されて表面磁束密度
が高められる。そして、永久磁石体１と導磁性体５とは
インサート成型し、または、異質同時成型によって製造
が可能で、製造工程数の低減ができる。The operation of this embodiment will be described. As shown in FIG. 2, the magnetic pole of the magnetic pole surface 3 of the permanent magnet body 1, which is fixed to the substrate portion 6 of the magnetic conductor 5 by the magnetic conductor 5, for example, the S pole, is formed by the side pieces 7, 7. Guided, permanent magnet body 1
A magnetic path is formed between the magnetic field and the N pole of the adsorption surface of the magnetic field to increase the surface magnetic flux density. Further, the permanent magnet body 1 and the magnetic conducting body 5 can be manufactured by insert molding or heterogeneous simultaneous molding, and the number of manufacturing steps can be reduced.
【００１３】また、複雑な形状でも成型可能となる。Further, it is possible to mold even a complicated shape.
【００１４】例えば、図３に示すように、永久磁石体１
を円盤形状とし、導磁性体５を扁平有底円筒形状とし、
または、図４に示すように、永久磁石体１を細長矩形状
体とし、導磁性体５はこの永久磁石体１を２本平行状に
配設する基板部６の両側縁および中央部に側片部７，
７，７を形成する。For example, as shown in FIG. 3, the permanent magnet body 1
Is a disk shape, and the magnetic conductor 5 is a flat bottomed cylindrical shape,
Alternatively, as shown in FIG. 4, the permanent magnet body 1 is an elongated rectangular body, and the magnetic conducting body 5 is provided on both side edges and the central portion of the substrate portion 6 in which two permanent magnet bodies 1 are arranged in parallel. One piece 7,
7 and 7 are formed.
【００１５】また、図５に示すように、永久磁石体１を
環状盤形状とし、導磁性体５を扁平有底円筒形状とし、
中央部に永久磁石体１の中央穴部９から突出する突部10
を形成し、表面磁束密度をより高める形状とすることも
できる。Further, as shown in FIG. 5, the permanent magnet body 1 has an annular disc shape, and the magnetic conducting body 5 has a flat bottomed cylindrical shape.
A protrusion 10 protruding from the center hole 9 of the permanent magnet body 1 at the center
Can be formed to have a shape that further increases the surface magnetic flux density.
【００１６】さらに、図６に示すように、永久磁石体１
を屈曲形状とし、導磁性体５はこの永久磁石体１の周囲
に側片部７を形成した形状、または、図７に示すよう
に、永久磁石体１を星形形状とし、導磁性体５はこの永
久磁石体１の周囲に側片部７を形成した形状など適宜の
形状とすることもできる。Further, as shown in FIG. 6, the permanent magnet body 1
Is a bent shape, and the magnetic conductor 5 has a side piece 7 formed around the permanent magnet body 1, or, as shown in FIG. 7, the permanent magnet body 1 has a star shape, The permanent magnet body 1 may have an appropriate shape such as a side piece portion 7 formed around the permanent magnet body 1.
【００１７】前記実施例では、永久磁石体１は焼結成型
したハードフェライトにて形成し、導磁性体５はフェラ
イト粉末または粒子を合成樹脂をバインダーとして成型
したソフトフェライトにて形成した構成について説明し
たが、導磁性体５を焼結成型したハードフェライトにて
形成し、永久磁石体１をフェライト粉末または粒子を合
成樹脂をバインダーとして成型したソフトフェライトに
て形成した構成とすることもできる。In the above embodiment, the permanent magnet body 1 is made of sintered and molded hard ferrite, and the magnetic conducting body 5 is made of soft ferrite obtained by molding ferrite powder or particles using synthetic resin as a binder. Alternatively, the magnetic conductor 5 may be formed of sintered hard ferrite, and the permanent magnet body 1 may be formed of soft ferrite formed by molding ferrite powder or particles using a synthetic resin as a binder.
【００１８】[0018]
【発明の効果】本発明によれば、導磁性体によりこの導
磁性体の基板部に当接される永久磁石体の磁極面の磁極
が側片部によって導かれ、永久磁石体の吸着面の磁極と
の間に磁路が形成されて表面磁束密度が高められ、しか
も、永久磁石体と導磁性体とはインサート成型、また
は、異質同時成型などに製造が可能で、製造工程数の低
減ができ、任意の複雑な形状も容易に得られる。According to the present invention, the magnetic pole of the magnetic pole surface of the permanent magnet body, which is brought into contact with the substrate portion of the magnetic conductor by the magnetic conductor, is guided by the side piece, and the magnetic attraction surface of the permanent magnet body is guided. A magnetic path is formed between the magnetic poles to increase the surface magnetic flux density, and the permanent magnet body and the magnetic conductor can be manufactured by insert molding or simultaneous heterogeneous molding, reducing the number of manufacturing steps. It is possible to easily obtain any complicated shape.
【図１】本発明の一実施例を示す磁石装置の斜視図であ
る。FIG. 1 is a perspective view of a magnet device showing an embodiment of the present invention.
【図２】同上縦断面図である。FIG. 2 is a vertical sectional view of the same.
【図３】本発明の他の実施例を示す磁石装置の斜視図で
ある。FIG. 3 is a perspective view of a magnet device showing another embodiment of the present invention.
【図４】本発明の他の実施例を示す磁石装置の斜視図で
ある。FIG. 4 is a perspective view of a magnet device showing another embodiment of the present invention.
【図５】本発明の他の実施例を示す磁石装置の斜視図で
ある。FIG. 5 is a perspective view of a magnet device showing another embodiment of the present invention.
【図６】本発明の他の実施例を示す磁石装置の斜視図で
ある。FIG. 6 is a perspective view of a magnet device showing another embodiment of the present invention.
【図７】本発明の他の実施例を示す磁石装置の斜視図で
ある。FIG. 7 is a perspective view of a magnet device showing another embodiment of the present invention.
１ 永久磁石体 ５ 導磁性体 ６ 基板部 ７ 側片部 ８ 間隙 1 Permanent Magnet 5 Magnetic Conductor 6 Substrate 7 Side Piece 8 Gap
Claims (1)
と、この永久磁石体の他方の磁極面に基板部を固着し両
側片部をこの永久磁石体の側面に沿って間隙を保持して
折曲げ先端縁を前記永久磁石体の一方の磁極面と略同一
面とした導磁性体とからなり、 前記永久磁石体と導磁性体とのいずれか一方をハードフ
ェライトにて形成するとともに他方をフェライト粉末ま
たは粒子を合成樹脂にて成型したソフトフェライトにて
形成したことを特徴とする磁石装置。Claim: What is claimed is: 1. A permanent magnet body having one magnetic pole surface as an attracting surface, and a substrate portion fixed to the other magnetic pole surface of the permanent magnet body, and both side portions having side surfaces of the permanent magnet body. A magnetic conductor having a bent tip edge substantially flush with one of the magnetic pole surfaces of the permanent magnet body along with a gap between the permanent magnet body and one of the permanent magnet bodies. A magnet device characterized in that it is formed of ferrite and the other is formed of soft ferrite obtained by molding ferrite powder or particles of synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18126891A JP2845643B2 (en) | 1991-07-22 | 1991-07-22 | Magnet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18126891A JP2845643B2 (en) | 1991-07-22 | 1991-07-22 | Magnet device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0529129A true JPH0529129A (en) | 1993-02-05 |
| JP2845643B2 JP2845643B2 (en) | 1999-01-13 |
Family
ID=16097727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18126891A Expired - Lifetime JP2845643B2 (en) | 1991-07-22 | 1991-07-22 | Magnet device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2845643B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6753948B2 (en) | 1993-04-27 | 2004-06-22 | Nikon Corporation | Scanning exposure method and apparatus |
| EP1821322A1 (en) * | 2006-02-20 | 2007-08-22 | BARLOG plastics GmbH | Magnetic body and method for its production |
| KR101026951B1 (en) * | 2008-04-10 | 2011-04-11 | 주식회사 이엠따블유 | Ferrite Structure and Ferrite Permeability Adjustment Method |
| KR20160124320A (en) * | 2015-04-16 | 2016-10-27 | 삼성전기주식회사 | Common mode filter for improving magnetic permeability and high frequency characteristic |
| CN107293388A (en) * | 2017-08-14 | 2017-10-24 | 东莞市龙跃永磁科技有限公司 | Magnet magnetic force enhancing structure |
-
1991
- 1991-07-22 JP JP18126891A patent/JP2845643B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6753948B2 (en) | 1993-04-27 | 2004-06-22 | Nikon Corporation | Scanning exposure method and apparatus |
| EP1821322A1 (en) * | 2006-02-20 | 2007-08-22 | BARLOG plastics GmbH | Magnetic body and method for its production |
| KR101026951B1 (en) * | 2008-04-10 | 2011-04-11 | 주식회사 이엠따블유 | Ferrite Structure and Ferrite Permeability Adjustment Method |
| KR20160124320A (en) * | 2015-04-16 | 2016-10-27 | 삼성전기주식회사 | Common mode filter for improving magnetic permeability and high frequency characteristic |
| US9966179B2 (en) | 2015-04-16 | 2018-05-08 | Samsung Electro-Mechanics Co., Ltd. | Common mode filter for improving magnetic permeability and high frequency characteristics |
| CN107293388A (en) * | 2017-08-14 | 2017-10-24 | 东莞市龙跃永磁科技有限公司 | Magnet magnetic force enhancing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2845643B2 (en) | 1999-01-13 |
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