JPS6355851B2 - - Google Patents
Info
- Publication number
- JPS6355851B2 JPS6355851B2 JP21350782A JP21350782A JPS6355851B2 JP S6355851 B2 JPS6355851 B2 JP S6355851B2 JP 21350782 A JP21350782 A JP 21350782A JP 21350782 A JP21350782 A JP 21350782A JP S6355851 B2 JPS6355851 B2 JP S6355851B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- holding groove
- fixed
- shaded
- core
- 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
- 238000000034 method Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
- H01F7/12—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements
- H01F7/1205—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements having short-circuited conductors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電磁石鉄心におけるくま取りコイルの
固定方法、特に電動機等の電路を開閉制御する電
磁接触器に設けられ、電路接点の開閉駆動を行う
電磁石鉄心におけるくま取りコイルの固定方法に
関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a method for fixing a shaded coil in an electromagnetic core, and in particular to an electromagnetic core that is installed in an electromagnetic contactor for controlling the opening and closing of an electric circuit in an electric motor, etc., and that drives the opening and closing of electric circuit contacts. The present invention relates to a method for fixing a shade removal coil in a method of fixing a dark circle coil.
電磁接触器には固定鉄心と可動鉄心が設けられ
ており、そのうち固定鉄心には操作コイルが装着
されており、一方可動鉄心にはクロスバーが固定
されている。そして該クロスバーには電路を開閉
する接点が形成されている。従つて操作コイルに
励磁電流を供給または遮断することにより固定鉄
心の磁化または消磁が行われ可動鉄心の固定鉄心
への接離に伴つて接点が接離され電路の開閉制御
が行われる。 The electromagnetic contactor is provided with a fixed core and a movable core, of which an operating coil is attached to the fixed core, and a crossbar is fixed to the movable core. Contacts for opening and closing the electric circuit are formed on the crossbar. Therefore, by supplying or cutting off excitation current to the operating coil, the fixed core is magnetized or demagnetized, and as the movable core moves toward and away from the fixed core, the contacts connect and separate, thereby controlling the opening and closing of the electric circuit.
この種の装置における電磁石鉄心、すなわち固
定鉄心には可動鉄心の固定鉄心への当接状態にお
ける鉄心吸引力の低下を防止するため、通常固定
鉄心の接触面にくま取りコイルが装着され可動鉄
心の固定鉄心への吸着保持状態が安定して維持さ
れる。 In this type of device, the electromagnetic core, i.e., the fixed core, is usually equipped with a shade coil on the contact surface of the fixed core to prevent a decrease in the core attraction force when the movable core is in contact with the fixed core. The adsorption/holding state to the fixed core is stably maintained.
すなわちこの固定鉄心の吸引時において、両鉄
心間の間隔が大きい時には操作コイルのインダク
タンスが小さく、従つて操作コイルには大きなラ
ツシユ電流が流れ、その吸引力は大きなものとな
る。そして、可動鉄心の吸引が完了して上記間隙
が閉じられると、操作コイルのインダクタンスが
大きくなり、操作コイルに流れる電流が小さくな
る。この時、くま取りコイルによるくま取り部磁
束と非くま取り部磁束との間に位相差が生じ、従
つて電磁石の吸引力が零とならず、可動鉄心の吸
着保持状態が維持される。 That is, when the fixed core is attracted, when the distance between the two cores is large, the inductance of the operating coil is small, and therefore a large lash current flows through the operating coil, resulting in a large attracting force. When the suction of the movable core is completed and the gap is closed, the inductance of the operating coil increases and the current flowing through the operating coil decreases. At this time, a phase difference occurs between the magnetic flux in the shaded portion and the magnetic flux in the non-shaded portion due to the shaded coil, so that the attractive force of the electromagnet does not become zero, and the movable iron core is maintained in an attracted and held state.
このように可動鉄心にくま取りコイルを設ける
ことにより可動鉄心の固定鉄心への吸着保持状態
を効果的に維持することができるが、この固定鉄
心へのくま取りコイルの固定方法は両鉄心の衝突
接離振動等により抜け落ちることなく固定する必
要があり、この固定方法が極めて難しくその改良
が望まれている。 By providing a shade removal coil on the movable core in this way, it is possible to effectively maintain the adsorption and holding state of the movable iron to the fixed iron core. It is necessary to fix it without falling off due to contact/separation vibration, etc., and this fixing method is extremely difficult, so improvements are desired.
従来技術
第１図には電磁石鉄心、すなわち固定鉄心にく
ま取りコイルが固定された従来装置が示され、固
定鉄心１０の接極面１２に２条の保持溝１４が設
けられており、この保持溝１４に方形型の環状の
くま取りコイル１６が挿入固定されている。Prior Art FIG. 1 shows a conventional device in which a shaded coil is fixed to an electromagnetic core, that is, a fixed core, and two retaining grooves 14 are provided on the armature surface 12 of the fixed core 10. A rectangular annular shading coil 16 is inserted and fixed in the groove 14.
このくま取りコイル１６の挿入固定方法は第２
図〜第９図に示され、第２図，第４図，第６図，
第８図に示すように接触面１２にはくま取りコイ
ルの幅ｗよりも大きい溝幅Ｗを有し、くま取りコ
イルの厚さｔよりも深さＨが深い保持溝１４が形
成されており、この保持溝１４にくま取りコイル
を挿入し保持溝１４の外壁１８をたたいて内側に
変形することにより、くま取りコイルを保持溝１
４の内壁２０と外壁１８とによつて第３図，第５
図，第７図，第９図に示すように圧接固定を行つ
ていた。 This method of inserting and fixing the darkening coil 16 is as follows.
Figures 2, 4, 6,
As shown in FIG. 8, a retaining groove 14 is formed on the contact surface 12, and has a groove width W larger than the width W of the shade coil and a depth H deeper than the thickness t of the shade coil. , by inserting the shade removal coil into this holding groove 14 and deforming it inward by hitting the outer wall 18 of the holding groove 14, the shade removal coil is inserted into the holding groove 1.
3 and 5 by the inner wall 20 and outer wall 18 of 4.
Pressure-welding fixation was performed as shown in Figures 7 and 9.
しかしながらこの種の固定方法においては、固
定鉄心と可動鉄心とが接離振動を行うことによつ
て前記変形状態の外壁１８が疲労し、これにより
くま取りコイルの圧接力が弱まりくま取りコイル
が保持溝から抜け出たり、傾いたりしてくま取り
コイルが可動鉄心の衝撃を受けて損傷する等の弊
害が発生した。 However, in this type of fixing method, as the fixed core and the movable core vibrate toward and away from each other, the deformed outer wall 18 becomes fatigued, which weakens the pressure contact force of the darkening coil and holds the darkening coil. Problems such as the darkening coil falling out of the groove or tilting were damaged by the impact of the movable iron core.
このような弊害を防止するために、従来くま取
りコイル１６を外壁１８によつて圧接変形した状
態で更にこの保持溝内に接着剤を注入する等の方
法が行なわれていた。しかしながらこのように接
着剤を注入する等の作業は極めて面倒であり、ま
た注入した接着剤を乾燥する等の煩雑な作業を強
いられるという問題があつた。 In order to prevent such problems, a conventional method has been to inject an adhesive into the holding groove after the contouring coil 16 is pressed and deformed by the outer wall 18. However, such operations such as injecting the adhesive are extremely troublesome, and there is a problem in that the injected adhesive is forced to perform complicated operations such as drying.
発明の目的
本発明は前述した従来の課題に鑑みなされたも
のであり、その目的は接着剤等の煩雑な注入工程
を要することなく、保持溝にくま取りコイルを確
実に圧入固定することができる電磁石鉄心におけ
るくま取りコイルの固定方法を提供することにあ
る。Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to reliably press-fit and fix a darkening coil into a holding groove without requiring a complicated injection process of adhesive or the like. An object of the present invention is to provide a method for fixing a shaded coil in an electromagnetic core.
発明の構成
上記目的を達成するために本発明は、電磁石鉄
心の接極面に設けた２条の保持溝に環状のくま取
りコイルを挿入固定するくま取りコイルの固定方
法において、前記２条の保持溝の先端内側間隔は
くま取りコイルの内側寸法よりもわずかに大きく
形成し、保持溝の基端内側間隔はくま取りコイル
の内側寸法よりもわずかに小さく形成して前記２
条の溝断面を逆ハの字形状に設け、また保持溝の
幅をくま取りコイルの幅よりもわずかに小さく形
成し、くま取りコイルを保持溝に圧入して固定す
ることを特徴とする。Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a method for fixing a shading coil in which an annular shading coil is inserted and fixed into two holding grooves provided on the armature surface of an electromagnetic core. The inner distance at the tips of the retaining grooves is formed to be slightly larger than the inner dimension of the darkening coil, and the inner distance at the proximal end of the retaining groove is formed to be slightly smaller than the inner dimension of the darkening coil.
The groove section of the strip is formed in an inverted V-shape, the width of the holding groove is slightly smaller than the width of the shaded coil, and the shaded coil is press-fitted into the holding groove and fixed.
実施例
（第１実施例）
第１０図〜第１２図には本発明に係る電磁石鉄
心におけるくま取りコイルの固定方法を示す第１
実施例の構成が示され、従来方法を適用した構成
図と同一部材には同一符号を付しその説明を省略
する。Embodiment (First embodiment) FIGS. 10 to 12 show a first embodiment showing a method for fixing a shaded coil in an electromagnetic core according to the present invention.
The configuration of the embodiment is shown, and the same members as those in the configuration diagram to which the conventional method is applied are given the same reference numerals, and the explanation thereof will be omitted.
本発明において特徴的なことはくま取りコイル
を保持固定する保持溝の形状を特有な形状に構成
し、くま取りコイルを確実に圧入固定することが
できるように構成したことである。 The characteristic feature of the present invention is that the shape of the holding groove for holding and fixing the shade removal coil is formed into a unique shape so that the shade removal coil can be reliably press-fitted and fixed.
本第１実施例において、保持溝１４は第１０図
に示すようにその先端内側間隔L1（本第１実施例
においては6.4mm）がくま取りコイルの内側寸法
ｌ（本第１実施例においては6.3mm）よりも僅かに
大きく形成し、保持溝１４の基端内側間隔L2（本
第１実施例においては6.0mm）はくま取りコイル
１６の内側寸法ｌよりも僅かに小さく形成して前
記２条の溝断面を逆ハの字形状に設け、また保持
溝１４の幅Ｗをくま取りコイルの幅ｗよりも僅か
に小さくかつ保持溝１４の深さＨをくま取りコイ
ルの厚さｔの寸法よりも深く形成したことであ
る。そして保持溝１４の先端内壁端部及び外壁端
部はくま取りコイルが圧入し易いように面取りあ
るいは丸味が形成されている。 In this first embodiment, as shown in FIG. is formed to be slightly larger than 6.3 mm), and the inner distance L 2 of the proximal end of the retaining groove 14 (6.0 mm in the first embodiment) is formed to be slightly smaller than the inner dimension l of the shading coil 16. The cross sections of the two grooves are formed in an inverted V-shape, and the width W of the holding groove 14 is slightly smaller than the width w of the shaded coil, and the depth H of the holding groove 14 is set to the thickness t of the shaded coil. This is due to the fact that it was formed deeper than the dimensions of . The inner and outer wall ends of the distal end of the holding groove 14 are chamfered or rounded to facilitate press-fitting of the contouring coil.
従つて本第１実施例によれば、第１１図に示す
ようにくま取りコイル１６を押し型２２により押
圧することにより、くま取りコイル１６の内側面
が保持溝１４の内壁側面に当接し、そしてこの時
前述したようにくま取りコイル１６の内側寸法ｌ
よりも保持溝の先端内側間隔L1の方が大きい結
果、くま取りコイル１６は外方に開拡して保持溝
１４内に圧入される。そしてくま取りコイル１６
の下端面が保持溝１４の底面に当接した状態にお
いては、更にこのくま取りコイル１６に押し型２
２から押圧力が作用し、この結果くま取りコイル
１６が変形してくま取りコイル１６が保持溝１４
の壁面にくい込み、この結果第１２図に示すよう
にくま取りコイル１６は保持溝１４の壁部と間隙
部を有することなく圧入固定されることとなる。 Therefore, according to the first embodiment, by pressing the shade removal coil 16 with the press die 22 as shown in FIG. 11, the inner surface of the shade removal coil 16 comes into contact with the inner wall side of the holding groove 14, At this time, as mentioned above, the inner dimension l of the darkening coil 16
As a result, the inner distance L 1 between the tips of the retaining grooves is larger than that of the retaining grooves, so that the shading coil 16 is expanded outward and press-fitted into the retaining groove 14 . And the darkening coil 16
When the lower end surface of the coil 16 is in contact with the bottom surface of the holding groove 14, the press mold 2
A pressing force is applied from 2, and as a result, the shading coil 16 is deformed and the shading coil 16 moves into the holding groove 14.
As a result, as shown in FIG. 12, the shading coil 16 is press-fitted and fixed to the wall of the holding groove 14 without any gap.
そして２条の保持溝１４の溝断面は逆ハの字形
状に設けられているため、保持溝底面位置での外
壁１８の厚みが大きくなる結果、固定鉄心と可動
鉄心との接離振動によつてもこの外壁が疲労して
外方に開きくま取りコイル１６の保持固定力が弱
められるという弊害を防止できる。 Since the cross section of the two retaining grooves 14 is formed in an inverted V-shape, the thickness of the outer wall 18 at the bottom of the retaining groove increases, resulting in vibration between the fixed core and the movable core. Even if the outer wall becomes fatigued and opens outward, it is possible to prevent the negative effect that the holding and fixing force of the darkening coil 16 is weakened.
（第２実施例）
第１３図には本発明に係る電磁石鉄心における
くま取りコイルの固定方法の第２実施例が示さ
れ、本第１実施例構成図及び従来構成図と同一部
材には同一符号を付しその説明を省略する。(Second Embodiment) FIG. 13 shows a second embodiment of the method for fixing a shaded coil in an electromagnet core according to the present invention, and the same members as in the configuration diagram of the first embodiment and the conventional configuration diagram are the same. Reference numerals are given and explanations thereof are omitted.
本第２実施例が第１実施例と異なる点は、くま
取りコイル１６を保持溝１４内に圧入固定した後
に更に保持溝１４の外壁１８を内側に変形してく
ま取りコイル１６を圧接固定したことである。 The difference between the second embodiment and the first embodiment is that after the darkening coil 16 is press-fitted and fixed into the holding groove 14, the outer wall 18 of the holding groove 14 is further deformed inward to press and fix the darkening coil 16. That's true.
従つて本第２実施例によればくま取りコイル１
６の保持溝１４内の圧入固定により確実にくま取
りコイル１６の固定が達成されている状態の上に
更に外壁１８を内側に変形することによりくま取
りコイル１６を保持溝１４の両壁１８，２０によ
つて圧接固定することが可能であり、また前述し
たように外壁１８が内側に変形する結果保持溝１
４の先端の幅がくま取りコイル１６の幅ｗよりも
狭くなり、この結果くま取りコイル１６の保持溝
１４からの抜け出し等を確実に防止することが可
能である。 Therefore, according to the second embodiment, the shade removing coil 1
In addition to the state in which the darkening coil 16 is securely fixed by press-fitting into the holding groove 14 of No. 6, by further deforming the outer wall 18 inward, the darkening coil 16 is fixed to both walls 18 of the holding groove 14, 20, and as described above, as the outer wall 18 deforms inward, the retaining groove 1
4 is narrower than the width w of the darkening coil 16, and as a result, it is possible to reliably prevent the darkening coil 16 from slipping out of the holding groove 14.
発明の効果
以上説明したように本発明によれば、くま取り
コイルを電磁石鉄心の接極面に設けた保持溝に確
実に圧入固定することが可能である。Effects of the Invention As explained above, according to the present invention, it is possible to reliably press-fit and fix the shaded coil into the holding groove provided on the armature surface of the electromagnetic core.
またこの両者の固定に接着剤等を用いることを
要しないため、くま取りコイルの取り付けを極め
て容易化でき、これにより電磁石鉄心の組立作業
の能率化及び製造コストの低減化を図ることが可
能である。 Furthermore, since it is not necessary to use adhesive or the like to fix the two, it is extremely easy to install the shade removal coil, which makes it possible to streamline the assembly work of the electromagnet core and reduce manufacturing costs. be.
第１図は電磁石鉄心にくま取りコイルを固定し
た状態を示す外観図、第２図〜第９図はくま取り
コイルの電磁石鉄心への従来の固定方法を示す概
略構成図、第１０図〜第１２図は本発明に係る電
磁石鉄心におけるくま取りコイルの固定方法を示
す構成図、第１３図は本発明に係る電磁石鉄心に
おけるくま取りコイルの他の固定方法を示す構成
図である。
各図中同一部材には同一符号を付し、１０は固
定鉄心、１２は接極面、１４は保持溝、１６はく
ま取りコイル、ｗはくま取りコイルの幅、Ｗは保
持溝の幅、ｌはくま取りコイルの内側寸法、L1
は保持溝の先端内側間隔、L2は保持溝の基端内
側間隔である。
Fig. 1 is an external view showing the state in which the shaded coil is fixed to the electromagnet core, Figs. 2 to 9 are schematic configuration diagrams showing the conventional method of fixing the shaded coil to the electromagnet core, and Figs. 10 to 9. FIG. 12 is a block diagram showing a method for fixing a shaded coil in an electromagnet core according to the present invention, and FIG. 13 is a block diagram showing another method for fixing a shaded coil in an electromagnet core according to the present invention. The same members in each figure are given the same symbols, 10 is the fixed core, 12 is the armature surface, 14 is the holding groove, 16 is the shaded coil, w is the width of the shaded coil, W is the width of the holding groove, l is the inner dimension of the shaded coil, L 1
is the inner distance between the tips of the retaining grooves, and L2 is the inner distance between the base ends of the retaining grooves.
Claims (1)
環状のくま取りコイルを挿入固定するくま取りコ
イルの固定方法において、前記２条の保持溝の先
端内側間隔はくま取りコイルの内側寸法よりもわ
ずかに大きく形成し、保持溝の基端内側間隔はく
ま取りコイルの内側寸法よりもわずかに小さく形
成して前記２条の溝断面を逆ハの字形状に設け、
また保持溝の幅をくま取りコイルの幅よりもわず
かに小さく形成し、くま取りコイルを保持溝に圧
入して固定することを特徴とする電磁石鉄心にお
けるくま取りコイルの固定方法。 ２ 特許請求の範囲１記載の方法において、くま
取りコイルを保持溝に圧入して固定した後更に保
持溝の外壁を内側に変形してくま取りコイルを保
持溝の両壁に圧着すると共に保持溝の先端幅をせ
ばめることを特徴とする電磁石鉄心におけるくま
取りコイルの固定方法。[Claims] 1. In a method for fixing an annular shading coil in which an annular shading coil is inserted and fixed into two holding grooves provided on the armature surface of an electromagnetic core, the distance between the inner ends of the two holding grooves is The grooves are formed to be slightly larger than the inner dimensions of the shading coil, and the proximal inner spacing of the holding grooves is formed to be slightly smaller than the inner dimensions of the shading coil, so that the cross section of the two grooves is formed in an inverted V-shape. ,
Furthermore, a method for fixing a shaded coil in an electromagnetic core, characterized in that the width of the holding groove is formed to be slightly smaller than the width of the shaded coil, and the shaded coil is press-fitted into the holding groove to be fixed. 2. In the method according to claim 1, after the shade removal coil is press-fitted into the holding groove and fixed, the outer wall of the holding groove is further deformed inward, and the shade removal coil is crimped to both walls of the holding groove, and the holding groove is fixed. A method for fixing a shaded coil in an electromagnetic core, characterized by narrowing the tip width of the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21350782A JPS59103313A (en) | 1982-12-06 | 1982-12-06 | Fixing of shading coil in solenoid core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21350782A JPS59103313A (en) | 1982-12-06 | 1982-12-06 | Fixing of shading coil in solenoid core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59103313A JPS59103313A (en) | 1984-06-14 |
| JPS6355851B2 true JPS6355851B2 (en) | 1988-11-04 |
Family
ID=16640334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21350782A Granted JPS59103313A (en) | 1982-12-06 | 1982-12-06 | Fixing of shading coil in solenoid core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59103313A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0213332A (en) * | 1988-06-30 | 1990-01-17 | Gold Kosan Kk | Plant-growing unit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0565186A3 (en) * | 1992-04-10 | 1993-11-03 | Balay, S.A. | Induction heating device |
| WO2009010057A1 (en) * | 2007-07-14 | 2009-01-22 | Danfoss A/S | A valve part comprising a shading ring |
-
1982
- 1982-12-06 JP JP21350782A patent/JPS59103313A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0213332A (en) * | 1988-06-30 | 1990-01-17 | Gold Kosan Kk | Plant-growing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59103313A (en) | 1984-06-14 |
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