JPH0333048Y2 - - Google Patents
Info
- Publication number
- JPH0333048Y2 JPH0333048Y2 JP1985158226U JP15822685U JPH0333048Y2 JP H0333048 Y2 JPH0333048 Y2 JP H0333048Y2 JP 1985158226 U JP1985158226 U JP 1985158226U JP 15822685 U JP15822685 U JP 15822685U JP H0333048 Y2 JPH0333048 Y2 JP H0333048Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- movable magnetic
- receiving part
- truncated conical
- magnetic
- 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
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000004907 flux Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Electromagnets (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
この考案はソレノイドに電気を通すと可動磁芯
がソレノイド内に吸引されるようにした電磁プラ
ンジヤーに関する。[Detailed Description of the Invention] "Industrial Application Field" This invention relates to an electromagnetic plunger in which a movable magnetic core is attracted into the solenoid when electricity is passed through the solenoid.
「従来の技術」
従来の電磁プランジヤーを第３図に示す。この
従来の電磁プランジヤーにおいてはソレノイド１
１はボビン１２上に巻かれ、この例ではボビン１
２の両端のつば１３，１４の間にソレノイド１１
が巻かれており、そのボビン１２はソレノイド１
１の軸芯位置において中心孔が形成されており、
その中心孔内に非磁性材、例えば真鍮、銅などの
パイプ１５が嵌合されている。その非磁性パイプ
１５内に例えば鉄芯の可動磁芯１６がその一端よ
り出入自在に配され、その非磁性パイプ１５の他
端内に磁性材の受部１７が嵌合挿入されている。"Prior Art" A conventional electromagnetic plunger is shown in Fig. 3. In this conventional electromagnetic plunger, the solenoid 1
1 is wound on bobbin 12, in this example bobbin 1
Between the collars 13 and 14 at both ends of the solenoid 11
is wound, and the bobbin 12 is connected to the solenoid 1.
A center hole is formed at the axis position of 1,
A pipe 15 made of a non-magnetic material such as brass or copper is fitted into the center hole. A movable magnetic core 16 made of, for example, an iron core is disposed within the non-magnetic pipe 15 such that it can be moved in and out from one end thereof, and a receiving portion 17 made of a magnetic material is fitted and inserted into the other end of the non-magnetic pipe 15.
その受部１７の外端面に磁気ヨーク１８の一端
が連結され、磁気ヨーク１８の他端はソレノイド
１１の外側を通つて、可動磁芯１６の突出端部の
周面と近接対向している。図においては磁気ヨー
ク１８として一端がふさがれた筒状体１８ａと、
その開放端をふさぐ円形板体１８ｂとより構成さ
れ、筒状体１８ａ内にソレノイド１１が挿入さ
れ、ボビンのつば１４がその閉塞板に対接される
と共に受部１７がその閉塞板に固定連結されてい
る。板体１８ｂは中心孔を持つており、その中心
孔の内に非磁性パイプ１５が嵌合挿入されてい
る。その非磁性パイプ１５を介して板体１８ｂの
内周面が可動磁芯１６の側面と近接対向してい
る。 One end of a magnetic yoke 18 is connected to the outer end surface of the receiving portion 17, and the other end of the magnetic yoke 18 passes outside the solenoid 11 and closely opposes the peripheral surface of the protruding end of the movable magnetic core 16. In the figure, a cylindrical body 18a with one end closed as a magnetic yoke 18,
The solenoid 11 is inserted into the cylindrical body 18a, the collar 14 of the bobbin is brought into contact with the closing plate, and the receiving part 17 is fixedly connected to the closing plate. has been done. The plate body 18b has a center hole, into which the non-magnetic pipe 15 is fitted and inserted. The inner circumferential surface of the plate 18b closely faces the side surface of the movable magnetic core 16 via the non-magnetic pipe 15.
受部１７の内端面に円錐台状凹部１９が形成さ
れ、可動磁芯１６の内端部は凹部１９に嵌合挿入
することができるように円錐台状凸部とされてい
る。 A truncated conical recess 19 is formed on the inner end surface of the receiving portion 17, and the inner end of the movable magnetic core 16 is formed into a truncated conical convex portion so that it can be fitted and inserted into the recess 19.
ソレノイド１１に電流を流すと矢印で示すよう
に磁束２１が可動磁芯１６、受部１７、磁気ヨー
ク１８よりなる閉磁路を通り、これによつて可動
磁芯１６及び受部１７間に吸引力が発生し、可動
磁芯１６は受部１７に吸引される。この場合、可
動磁芯１６が最も突出した状態で可動磁芯１６と
受部１７との間の最も近い距離L1が小さいほど
磁束２１が通る閉磁路の磁気抵抗が小さくなつて
大きな吸引力が得られる。従来においては前記距
離L1を比較的大きくし、可動磁芯１６の移動長
いわゆるストローク長を大きくすると吸引力が小
さくなるため、比較的大きな吸引力を持ち、しか
も移動長を長くすることができなかつた。なお凹
部１９及び可動磁芯１６の内端部を尖つた形状と
しているのもストローク長を大きくするためであ
つたが、十分でなかつた。 When current is applied to the solenoid 11, the magnetic flux 21 passes through a closed magnetic path consisting of the movable magnetic core 16, the receiving portion 17, and the magnetic yoke 18 as shown by the arrow, thereby creating an attractive force between the movable magnetic core 16 and the receiving portion 17. occurs, and the movable magnetic core 16 is attracted to the receiving portion 17. In this case, the smaller the closest distance L 1 between the movable magnetic core 16 and the receiving part 17 when the movable magnetic core 16 is most protruded, the smaller the magnetic resistance of the closed magnetic path through which the magnetic flux 21 passes, and the greater the attractive force. can get. Conventionally, when the distance L 1 is made relatively large and the travel length of the movable magnetic core 16 (so-called stroke length) is increased, the attractive force becomes smaller, so it is possible to have a relatively large attractive force and also to increase the travel length. Nakatsuta. Note that the recess 19 and the inner end of the movable magnetic core 16 were made to have a sharp shape in order to increase the stroke length, but this was not sufficient.
ちなみに第３図に示した従来の電磁プランジヤ
ーの距離L1（ストローク長）に対する吸引力の特
性は第２図の曲線２３に示すようにストローク長
を長くするとその吸引力は比較的速く低下してし
まう。従来の電磁プランジヤーにおいては、その
可動磁芯１６が受部１７に接近するとその吸引力
は必要以上に大きくなる欠点があつた。 By the way, the characteristics of the attraction force with respect to the distance L 1 (stroke length) of the conventional electromagnetic plunger shown in Figure 3 are as shown by curve 23 in Figure 2. As the stroke length is increased, the attraction force decreases relatively quickly. Put it away. The conventional electromagnetic plunger has a drawback that when the movable magnetic core 16 approaches the receiving portion 17, the attractive force becomes larger than necessary.
この考案の目的は大きなストローク長を得るこ
とができ、しかも吸引力も比較的大きく、かつ組
立てが容易な電磁プランジヤーを提供することに
ある。 The object of this invention is to provide an electromagnetic plunger that can obtain a large stroke length, has a relatively large suction force, and is easy to assemble.
「問題点を解決するための手段」
この考案によれば上記受部は非磁性パイプ内に
挿入されるのではなく、受部に凹部が形成され、
その受部の凹部に非磁性パイプの一端部が嵌合挿
入され、その嵌合部より更に奥において受部に可
動磁芯の内端部が嵌合挿入されることができる円
錐台状部が形成されている。この構成によれば可
動磁芯が最も突出した状態で、その可動磁芯と受
部との最短距離が従来のものよりも小さくなり、
その可動磁芯の移動長、すなわちストローク長を
大きくすることができ、かつ可動磁芯と受部との
間の最短距離が短いため吸引力を大きくすること
が可能である。"Means for solving the problem" According to this invention, the receiving part is not inserted into the non-magnetic pipe, but a recess is formed in the receiving part,
One end of the non-magnetic pipe is fitted and inserted into the recess of the receiving part, and further back from the fitting part there is a truncated conical part into which the inner end of the movable magnetic core can be fitted and inserted into the receiving part. It is formed. According to this configuration, when the movable magnetic core is in the most protruding state, the shortest distance between the movable magnetic core and the receiving part is smaller than that of the conventional one,
The moving length of the movable magnetic core, that is, the stroke length can be increased, and the shortest distance between the movable magnetic core and the receiving portion is short, so it is possible to increase the attractive force.
「実施例」
第１図はこの考案による電磁プランジヤーの実
施例を示し、第３図と対応する部分に同一符号を
付けてある。この考案によれば受部１７は非磁性
パイプ１５内に挿入されるのではなく、受部１７
の内端面に凹部２４が形成され、凹部２４は、そ
の可動磁芯１６側は円形凹部であつてここに非磁
性パイプ１５の端部が嵌合される。嵌合部２５
と、更に嵌合部２５の奥に形成された円錐台状部
２６とにより構成される。円錐台状部２６は可動
磁芯１６の円錐台状凸部とされた内端部が嵌合挿
入されることができる形状とされている。"Embodiment" FIG. 1 shows an embodiment of an electromagnetic plunger according to this invention, and parts corresponding to those in FIG. 3 are given the same reference numerals. According to this invention, the receiving part 17 is not inserted into the nonmagnetic pipe 15, but the receiving part 17 is inserted into the non-magnetic pipe 15.
A recess 24 is formed on the inner end surface of the recess 24, and the recess 24 is a circular recess on the movable magnetic core 16 side, into which the end of the non-magnetic pipe 15 is fitted. Fitting part 25
and a truncated conical portion 26 formed further inside the fitting portion 25. The truncated conical portion 26 has a shape into which the inner end portion of the movable magnetic core 16, which is a truncated conical convex portion, can be fitted and inserted.
この構成において可動磁芯１６が最も突出した
状態で、受部１７と可動磁芯１６との最短距離
L2は第３図に示した対応最短距離L1に比べて小
さく選定される。従つてこの最短距離部分に磁束
２１が集中して通り、磁束２１の通る磁気回路の
磁気抵抗が小さくなり、吸引力は大きなものとな
る。しかもこの図から明らかなように可動磁芯１
６は凹部２４の嵌合部２５を通り円錐台状部２６
に達するためストローク長、つまり可動磁芯１６
の移動長を大きくすることができる。最短距離
L2を調整することにより、つまり凹部２４中の
嵌合部２５の軸方向の長さを調整することによつ
て、このストローク長と吸引力との特性を選定す
ることができる。 In this configuration, when the movable magnetic core 16 is most protruded, the shortest distance between the receiving portion 17 and the movable magnetic core 16 is
L 2 is selected to be smaller than the corresponding shortest distance L 1 shown in FIG. Therefore, the magnetic flux 21 is concentrated in this shortest distance portion, the magnetic resistance of the magnetic circuit through which the magnetic flux 21 passes becomes small, and the attractive force becomes large. Moreover, as is clear from this figure, the movable magnetic core 1
6 passes through the fitting part 25 of the recess 24 and the truncated conical part 26
In order to reach the stroke length, that is, the movable magnetic core 16
can increase the travel length. shortest distance
By adjusting L2 , that is, by adjusting the axial length of the fitting portion 25 in the recess 24, the characteristics of this stroke length and suction force can be selected.
第２図に嵌合部２５の軸方向の長さを各種の状
態とした場合のストローク長と吸引力との関係を
示す。この図は受部１７の磁気ヨーク１８との対
接面より可動磁芯１６側の端面までの、つまり受
部１７の軸方向の長さl1をパラメータとしたもの
であつて、磁気ヨーク１８から円錐台状部２６の
可動磁芯１６側端までの距離l2が15.5mm、嵌合部
２５の内径R1が12.8mm、外径R2が15mmの場合で
ソレノイド１１として線径が0.29mmのものを1500
回巻いた直流抵抗23.4Ωのものに対し、直流電流
500ｍＡ流した場合である。曲線３１，３２，３
３，３４，３５，３６，３７はl1がそれぞれ17.5
mm、18mm、18.5mm、19mm、19.5mm、20mm、20.5mm
の各場合である。この第２図よりl1が大きくなる
にしたがつて吸引力一定のストローク長の範囲が
大きくなり、かつ吸引力は小さくなつてくるが、
第３図に示した従来のものに対する特性曲線２３
に比べて不必要に吸引力は大きくなく、かつ大き
なストローク長が得られ、また同一ストローク長
に対し大きい吸引力が得られることがわかる。更
にこの図からl1を調整することによつてストロー
ク長と吸引力との特性の所望のものを作ることが
できる。なおこの特性は嵌合部２５を構成する磁
性体の厚みを調整することによつても変えること
ができる。磁気ヨーク１８としてはコ字状のもの
を用い、その両脚部間にソレノイド１１を配して
もよい。 FIG. 2 shows the relationship between the stroke length and the suction force when the axial length of the fitting portion 25 is varied. In this figure, the length l 1 in the axial direction of the receiving part 17 from the contact surface of the receiving part 17 with the magnetic yoke 18 to the end face on the movable magnetic core 16 side is taken as a parameter. When the distance l 2 from the truncated conical part 26 to the movable magnetic core 16 side end is 15.5 mm, the inner diameter R 1 of the fitting part 25 is 12.8 mm, and the outer diameter R 2 is 15 mm, the wire diameter of the solenoid 11 is 0.29 mm. 1500 mm
For a wound DC resistance of 23.4Ω,
This is when 500mA is applied. Curve 31, 32, 3
3, 34, 35, 36, 37 have l 1 of 17.5 each
mm, 18mm, 18.5mm, 19mm, 19.5mm, 20mm, 20.5mm
In each case. From this figure 2, as l 1 increases, the range of stroke length where the suction force is constant becomes larger, and the suction force becomes smaller.
Characteristic curve 23 for the conventional one shown in Fig. 3
It can be seen that the suction force is not unnecessarily large compared to the above, and a longer stroke length can be obtained, and a larger suction force can be obtained for the same stroke length. Further, by adjusting l 1 from this figure, desired characteristics of stroke length and suction force can be created. Note that this characteristic can also be changed by adjusting the thickness of the magnetic material constituting the fitting portion 25. The magnetic yoke 18 may be U-shaped, and the solenoid 11 may be arranged between its legs.
「考案の効果」
以上述べたようにこの考案による電磁プランジ
ヤーによれば、その非磁性パイプ１５を受部内に
嵌合させることによつてその受部と可動磁芯との
最短距離が小さくなり、従つて磁気回路の磁気抵
抗を小さくすることができ、かつストローク長を
大きくすることができる。又受部１７に対して非
磁性パイプを単に挿入嵌合すればよく、その製造
組立ては簡単である。"Effects of the invention" As described above, according to the electromagnetic plunger of this invention, by fitting the non-magnetic pipe 15 into the receiving part, the shortest distance between the receiving part and the movable magnetic core is reduced. Therefore, the magnetic resistance of the magnetic circuit can be reduced and the stroke length can be increased. Furthermore, the non-magnetic pipe can be simply inserted and fitted into the receiving part 17, and its manufacturing and assembly is simple.
第１図はこの考案による電磁プランジヤーの一
例を示す断面図、第２図はストローク長と吸引力
との関係を示す特性図、第３図は従来の電磁プラ
ンジヤーを示す断面図である。
１１：ソレノイド、１２：ボビン、１５：非磁
性パイプ、１６：可動磁芯、１７：受部、１８：
磁気ヨーク、２４：受部１７の凹部、２５：嵌合
部、２６：円錐台状部。
FIG. 1 is a sectional view showing an example of an electromagnetic plunger according to this invention, FIG. 2 is a characteristic diagram showing the relationship between stroke length and suction force, and FIG. 3 is a sectional view showing a conventional electromagnetic plunger. 11: Solenoid, 12: Bobbin, 15: Non-magnetic pipe, 16: Movable magnetic core, 17: Receiver, 18:
Magnetic yoke, 24: recessed portion of receiving portion 17, 25: fitting portion, 26: truncated conical portion.
Claims (1)
に配され、その非磁性パイプ内にその一端より突
出して可動磁芯が出入自在に配され、上記非磁性
パイプの他端に磁性材の受部が配され、その受部
に連結された磁気ヨークが上記ソレノイドの外側
を通り、上記可動磁芯の突出端部の側面に近接位
置している電磁プランジヤーにおいて、 上記受部の内端面に凹部が形成され、その凹部
は上記非磁性パイプが嵌合挿入された嵌合部と、
その嵌合部の奥に形成された円錐台状部とより成
り、 上記可動磁芯の内端部は上記円錐台状部に嵌合
挿入可能な円錐台状凸部とされ、 上記可動磁芯が最も突出した状態で、その可動
磁芯と上記受部との最短距離L2が、その可動磁
芯と上記受部の上記円錐台状部との最短距離L1
より小に選定されていることを特徴とする電磁プ
ランジヤー。[Claims for Utility Model Registration] A non-magnetic pipe is coaxially disposed within the center hole of the solenoid, and a movable magnetic core is disposed within the non-magnetic pipe protruding from one end so as to be freely removable and removable. In the electromagnetic plunger, a receiving part made of a magnetic material is arranged at the other end, and a magnetic yoke connected to the receiving part passes outside the solenoid and is located close to a side surface of the protruding end of the movable magnetic core. A recess is formed in the inner end surface of the receiving part, and the recess has a fitting part into which the non-magnetic pipe is fitted and inserted;
The movable magnetic core has a truncated conical portion formed at the back of the fitting portion, and an inner end portion of the movable magnetic core is a truncated conical convex portion that can be fitted and inserted into the truncated conical portion. In the most protruding state, the shortest distance L 2 between the movable magnetic core and the receiving part is the shortest distance L 1 between the movable magnetic core and the truncated conical part of the receiving part
An electromagnetic plunger characterized by being selected to be smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985158226U JPH0333048Y2 (en) | 1985-10-16 | 1985-10-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985158226U JPH0333048Y2 (en) | 1985-10-16 | 1985-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6265813U JPS6265813U (en) | 1987-04-23 |
| JPH0333048Y2 true JPH0333048Y2 (en) | 1991-07-12 |
Family
ID=31081517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985158226U Expired JPH0333048Y2 (en) | 1985-10-16 | 1985-10-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0333048Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5888311B2 (en) * | 2013-11-28 | 2016-03-22 | 株式会社デンソー | Electromagnetic actuator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032735U (en) * | 1983-08-12 | 1985-03-06 | 東芝テック株式会社 | timer |
-
1985
- 1985-10-16 JP JP1985158226U patent/JPH0333048Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6032735U (en) * | 1983-08-12 | 1985-03-06 | 東芝テック株式会社 | timer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6265813U (en) | 1987-04-23 |
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