JPH0462442B2 - - Google Patents
Info
- Publication number
- JPH0462442B2 JPH0462442B2 JP61005203A JP520386A JPH0462442B2 JP H0462442 B2 JPH0462442 B2 JP H0462442B2 JP 61005203 A JP61005203 A JP 61005203A JP 520386 A JP520386 A JP 520386A JP H0462442 B2 JPH0462442 B2 JP H0462442B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- permanent magnet
- movable body
- hole
- electromagnet
- 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 - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Electromagnetic Pumps, Or The Like (AREA)
- Reciprocating Pumps (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
【発明の詳細な説明】
［技術分野］
本発明は、磁力により可動される可動体の構造
に関し、詳しくは永久磁石を保持しているフレー
ムに渦電流が生じるのを防止するものでありなが
ら、フレームの強度低下を防止するとともにフレ
ームと永久磁石の位置ずれを防止しようとする技
術に関する。[Detailed Description of the Invention] [Technical Field] The present invention relates to the structure of a movable body that is moved by magnetic force, and more specifically, to prevent the generation of eddy current in a frame holding a permanent magnet. The present invention relates to a technique for preventing a decrease in the strength of a frame and for preventing misalignment between the frame and a permanent magnet.
［背景技術］
従来、ケーシングに電磁石を対向させて固定
し、電磁石の対向磁極間に永久磁石を有する可動
体を配し、可動体の両端部にダイヤフラムを取付
け、電磁石のコイルへの通電により生じる磁力に
より可動体を往復駆動し、ダイヤフラムの往復動
により圧力流体を吐出する電磁ポンプにおいて、
フレーム７が金属製のような導電性材料の場合に
は、電磁石の磁力によつて第４図の矢印で示すよ
うに、渦電流が発生するという問題があつた。こ
のような問題を解消するのに、第５図に示す実公
昭56−42448号公報のようにフレーム７の中央の
リブＲを切除し、１つの貫通孔１９に２個の永久
磁石３を固着することが行なわれているが、この
ような構成のものにおいては、第６図のように、
フレーム７が菱形に変形しやすく、可動体４に繰
り返しかかる荷重によつて永久磁石３の接着部に
応力がかかり、永久磁石３がフレーム７から外れ
るという問題がある。又、大きい貫通孔１９に小
さい永久磁石３を取着するに当たつて、フレーム
７の中心と永久磁石３の中心を合わせるのである
が、その位置合わせに当たつて位置ずれが生じや
すく、第７図のように永久磁石３がフレーム７に
対して傾き、このため位置合わせが面倒となると
いう問題があつた。[Background technology] Conventionally, electromagnets are fixed facing each other in a casing, a movable body having a permanent magnet is arranged between the opposing magnetic poles of the electromagnet, and diaphragms are attached to both ends of the movable body. In an electromagnetic pump that reciprocates a movable body using magnetic force and discharges pressurized fluid through the reciprocating motion of a diaphragm,
When the frame 7 is made of a conductive material such as metal, there is a problem in that eddy currents are generated by the magnetic force of the electromagnet, as shown by the arrows in FIG. To solve this problem, the central rib R of the frame 7 is cut out and two permanent magnets 3 are fixed in one through hole 19, as shown in FIG. However, in such a configuration, as shown in Figure 6,
There is a problem in that the frame 7 easily deforms into a diamond shape, and stress is applied to the bonded portion of the permanent magnet 3 due to the load repeatedly applied to the movable body 4, causing the permanent magnet 3 to come off from the frame 7. Furthermore, when attaching the small permanent magnet 3 to the large through hole 19, the center of the frame 7 and the center of the permanent magnet 3 are aligned, but it is easy for misalignment to occur during alignment. As shown in FIG. 7, the permanent magnet 3 is tilted with respect to the frame 7, which causes a problem in that alignment becomes troublesome.
［発明の目的］
本発明はこのような問題に鑑みてなされたもの
であり、その目的とするところは、フレームに渦
電流が発生するのを防止するものでありながら、
フレームの変形を抑制し、永久磁石の外れを防止
し、しかもフレームと永久磁石との位置合わせを
簡単容易に行うことができる可動体の構造を提供
することにある。[Object of the Invention] The present invention has been made in view of such problems, and its purpose is to prevent the generation of eddy current in the frame.
To provide a structure of a movable body that suppresses deformation of a frame, prevents permanent magnets from coming off, and allows simple and easy alignment of the frame and permanent magnets.
［発明の開示］
本発明の可動体の構造は、フレーム７に貫通孔
１９を形成し、貫通孔１９と略等しい大きさの永
久磁石３を貫通孔１９貫通して取着し、永久磁石
３に２極以上の着磁がなされて成ることを特徴と
するものであり、このように構成することによつ
て、上記目的を達成したものである。まつり、フ
レーム７の貫通孔１９は中央にリブがないものに
することによつて、フレーム７に渦電流が発生す
るのを回避するものでありながら、２極以上に磁
着された永久磁石３は貫通孔１９の大きさに略等
しくすることによつて、可動体４に繰り返しかか
る荷重に対して永久磁石３がフレーム７に対して
位置ずれすることがなく、使用中において生じる
位置ずれによつて特性が低下する等の問題もな
く、しかも永久磁石３のフレーム７に対する位置
合わせも容易に行うことができるようにしたもの
である。[Disclosure of the Invention] The structure of the movable body of the present invention is such that a through hole 19 is formed in the frame 7, a permanent magnet 3 of approximately the same size as the through hole 19 is attached to the through hole 19, and the permanent magnet 3 is attached to the frame 7. It is characterized by having two or more poles magnetized, and by configuring it in this way, the above object is achieved. By making the through hole 19 of the frame 7 without a rib in the center, the generation of eddy current in the frame 7 can be avoided. By making the size approximately equal to the size of the through hole 19, the permanent magnet 3 will not be displaced with respect to the frame 7 due to the load repeatedly applied to the movable body 4, and the positional displacement that occurs during use will not occur. There is no problem such as deterioration of the characteristics due to the magnet 3, and the positioning of the permanent magnet 3 with respect to the frame 7 can be easily performed.
以下本発明の実施例を図面に基づいて詳述す
る。 Embodiments of the present invention will be described in detail below based on the drawings.
電磁ポンプＰはケーシング１に電磁石２を対向
させて固定し、電磁石２の対向磁極間に永久磁石
３を有する可動体４を配し、可動体４の両端部に
ダイヤフラム５を設け、中央ケース１０と側部ケ
ース１１，１１間にダイアフラム５，５を挟持し
て取り付け、電磁石２のコイル６への通電により
生じる磁力により可動体４を往復駆動し、ダイヤ
フラム５の往動により、ケーシング１の外部と連
通している吸入室１２から吸入弁１３を介して吸
入圧縮室１４に外気を吸入し、そしてダイヤフラ
ム５の復動により、吸入圧縮室１４から圧力空気
を吐出弁１５を介し、吐出室１６を経て吐出口１
７から吐出することができるように構成してあ
る。 The electromagnetic pump P has an electromagnet 2 fixed to a casing 1 facing each other, a movable body 4 having a permanent magnet 3 arranged between opposing magnetic poles of the electromagnet 2, diaphragms 5 provided at both ends of the movable body 4, and a central case 10. The diaphragms 5, 5 are mounted between the side cases 11, 11, and the movable body 4 is reciprocated by the magnetic force generated by energizing the coil 6 of the electromagnet 2. Outside air is sucked into the suction compression chamber 14 from the suction chamber 12 communicating with the suction chamber 12 via the suction valve 13, and by the reciprocal movement of the diaphragm 5, pressurized air is discharged from the suction compression chamber 14 via the discharge valve 15 and into the discharge chamber 16. through the outlet 1
It is constructed so that it can be discharged from 7.
鉄芯１８が貫通しているコイルボビンにコイル
６を巻いて電磁石２を構成してあり、このような
一対の電磁石２を振動経路を挟んで対向させてあ
る。これら一対の電磁石２のコイルの巻き方向は
互いに逆方向にしてある。そして振動経路におい
てフレーム７に永久磁石３，３を支持した可動体
４を上記ダイアフラム５，５間に架設し、電磁石
２に交流電流を印加させることで、可動体４を往
復動させてダイアフラム５，５を往復駆動させる
ことができるようにしてある。 An electromagnet 2 is constructed by winding a coil 6 around a coil bobbin through which an iron core 18 passes, and a pair of such electromagnets 2 are opposed to each other with a vibration path in between. The winding directions of the coils of these pair of electromagnets 2 are opposite to each other. A movable body 4 supporting permanent magnets 3 and 3 on a frame 7 is installed between the diaphragms 5 and 5 in the vibration path, and by applying alternating current to the electromagnet 2, the movable body 4 is reciprocated and the diaphragm 5 , 5 can be driven back and forth.
第１図に示すように、可動体４の金属製のフレ
ーム７には大きな貫通孔１９を形成してある。貫
通孔１９と略等しい大きさの永久磁石３を貫通孔
１９に貫通して接着剤９にて接着して取着してあ
る。そして永久磁石３に２極以上の着磁がなされ
ている。永久磁石３の着磁の個数は３個以上であ
つてもよい。そして着磁は金属製のフレーム７に
永久磁石３となる磁石素体を挿入した後行つて
も、又、２個以上着磁した永久磁石３をフレーム
７に嵌入して取着してもよいものである。 As shown in FIG. 1, a large through hole 19 is formed in the metal frame 7 of the movable body 4. As shown in FIG. A permanent magnet 3 having approximately the same size as the through hole 19 is passed through the through hole 19 and attached by bonding with an adhesive 9. The permanent magnet 3 is magnetized with two or more poles. The number of magnetized permanent magnets 3 may be three or more. The magnetization may be performed after inserting a magnet body that will become the permanent magnet 3 into the metal frame 7, or two or more magnetized permanent magnets 3 may be fitted into the frame 7 and attached. It is something.
このように、フレーム７の貫通孔１９は中央に
リブがないものにすることで、フレーム７に渦電
流が発生するのを回避し、２極以上に着磁された
永久磁石３は貫通孔１９の大きさに略等しくする
ことで、可動体４に繰り返しかかる荷重に対して
永久磁石３がフレーム７に対して位置ずれするこ
とがなく、使用中において生じる位置ずれによつ
て特性が低下する等の問題もなく、永久磁石３の
フレーム７に対する位置合わせも、例えば、その
位置ずれ量αが第８図ａに示す従来のものと等し
い場合にも、従来のものの位置ずれに伴うθ1に比
べ長い永久磁石３の長い寸法の両端で合わすから
その位置ずれに伴う傾き角度θ2も小に抑さえ、又
その位置合わせ作業も従来の２回に比べて１回で
よいものである。 In this way, by making the through hole 19 of the frame 7 without a rib in the center, generation of eddy current in the frame 7 can be avoided, and the permanent magnet 3 magnetized to two or more poles can be inserted into the through hole 19. By making the size approximately equal to the size of , the permanent magnet 3 will not be misaligned with respect to the frame 7 due to the load repeatedly applied to the movable body 4, and the characteristics will not deteriorate due to misalignment that occurs during use. There is no problem in positioning the permanent magnet 3 with respect to the frame 7, for example, even when the positional deviation amount α is equal to that of the conventional one shown in FIG. Since both ends of the long dimension of the long permanent magnet 3 are aligned, the inclination angle θ 2 caused by the positional deviation can be suppressed to a small value, and the positioning operation only needs to be done once, compared to twice in the conventional case.
［発明の効果］
以上要するに本発明は、フレームの貫通孔は中
央にリブがないものにしてあるから、フレームに
渦電流が発生するのを回避するものでありなが
ら、２極以上に着磁された永久磁石は貫通孔の大
きさに略等しくしてあるから、可動体に繰り返し
かかる荷重に対して永久磁石がフレームに対して
位置ずれすることがなく、使用中において生じる
位置ずれによつて特性が低下する等の問題もな
く、しかも永久磁石のフレームに対する位置合わ
せも容易に行うことができるという利点がある。[Effects of the Invention] In short, in the present invention, since the through-hole of the frame does not have a rib in the center, the generation of eddy current in the frame can be avoided, but the frame can be magnetized to two or more poles. Since the size of the permanent magnet is approximately equal to the size of the through hole, the permanent magnet will not shift relative to the frame due to the load repeatedly applied to the movable body, and the characteristics will not be affected by the position shift that occurs during use. This has the advantage that there is no problem such as a decrease in the magnetic field, and the positioning of the permanent magnet with respect to the frame can be easily performed.
第１図は本発明の可動体の一実施例の斜視図、
第２図ａ，ｂは同上の可動体の平面図、正面図、
第３図ａ，ｂは同上の電磁ポンプの詳細縦断面
図、詳細横断面図、第４図は従来例の可動体の問
題点を示す斜視図、第５図は他の従来例の可動体
の斜視図、第６図は同上の問題点の説明図、第７
図は同上の他の問題点の説明図、第８図ａは同上
の問題点の説明図、第８図ｂは本発明の位置合わ
せ状態の説明図であり、３は永久磁石、７はフレ
ーム、１９は貫通孔である。
FIG. 1 is a perspective view of an embodiment of the movable body of the present invention;
Figures 2a and 2b are a plan view and a front view of the movable body as above,
Figures 3a and b are detailed longitudinal cross-sectional views and detailed cross-sectional views of the same electromagnetic pump as above, Figure 4 is a perspective view showing the problems of the conventional movable body, and Figure 5 is another conventional movable body. Fig. 6 is an explanatory diagram of the above problem, Fig. 7 is a perspective view of
The figure is an explanatory diagram of another problem same as the above, FIG. 8a is an explanatory diagram of the same problem as above, and FIG. , 19 are through holes.
Claims (1)
い大きさの永久磁石を貫通孔に貫通して取着し、
永久磁石に２極以上の着磁がなされて成ることを
特徴とする可動体の構造。1. A through hole is formed in the frame, and a permanent magnet of approximately the same size as the through hole is inserted through the through hole and attached.
A structure of a movable body characterized by a permanent magnet magnetized with two or more poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61005203A JPS62163305A (en) | 1986-01-14 | 1986-01-14 | Structure of moving body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61005203A JPS62163305A (en) | 1986-01-14 | 1986-01-14 | Structure of moving body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62163305A JPS62163305A (en) | 1987-07-20 |
| JPH0462442B2 true JPH0462442B2 (en) | 1992-10-06 |
Family
ID=11604636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61005203A Granted JPS62163305A (en) | 1986-01-14 | 1986-01-14 | Structure of moving body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62163305A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997030288A2 (en) * | 1996-02-14 | 1997-08-21 | Dionex Corporation | Magnetic direct drive reciprocating pump apparatus and method with integral pressure sensing |
-
1986
- 1986-01-14 JP JP61005203A patent/JPS62163305A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62163305A (en) | 1987-07-20 |
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