JP6060631B2 - Magnetic contactor - Google Patents

Magnetic contactor Download PDF

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JP6060631B2
JP6060631B2 JP2012246175A JP2012246175A JP6060631B2 JP 6060631 B2 JP6060631 B2 JP 6060631B2 JP 2012246175 A JP2012246175 A JP 2012246175A JP 2012246175 A JP2012246175 A JP 2012246175A JP 6060631 B2 JP6060631 B2 JP 6060631B2
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press
terminal
fixed contact
fit
contact
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JP2014096244A (en
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日出央 足立
日出央 足立
幸治 大久保
幸治 大久保
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Fuji Electric FA Components and Systems Co Ltd
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Fuji Electric FA Components and Systems Co Ltd
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Priority to JP2012246175A priority Critical patent/JP6060631B2/en
Priority to KR1020157008656A priority patent/KR101718436B1/en
Priority to PCT/JP2013/005736 priority patent/WO2014073144A1/en
Priority to CN201380052194.3A priority patent/CN104704595B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements

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  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

本発明は、電磁接触器に係わり、詳細には、筐体への固定接触子装着構造に関するものである。   The present invention relates to an electromagnetic contactor, and more particularly to a structure for mounting a fixed contact to a housing.

電磁接触器は、第１ケース内に電磁石が収納され、この第１ケースに重なって接続する第２ケースに接点部が収納されている。
第２ケースは、電源側の複数の端子室と、負荷側の複数の端子室とを互いに背面側で対向させて設け、それら電源側及び負荷側の端子室の間の空間に、電磁石の巻線に電圧を印加することにより移動する接点部の可動接点支えを収納している。そして、各端子室には固定接触子が収納されている（例えば、特許文献１）。 In the electromagnetic contactor, an electromagnet is accommodated in a first case, and a contact portion is accommodated in a second case that is connected to overlap the first case.
The second case is provided with a plurality of terminal chambers on the power source side and a plurality of terminal chambers on the load side facing each other on the back side, and an electromagnet wound in a space between the power source side and the load side terminal chambers. The movable contact support of the contact part which moves by applying a voltage to the wire is housed. Each terminal chamber contains a stationary contact (for example, Patent Document 1).

図８及び図９に示すものは、特許文献１に類似した構造であり、例えばタブ端子などの雄型端子と固定接点とを固定接触子に備えた従来の電磁接触器を示すものである。
図８に示す電磁接触器は、電磁石１を収納した第１ケース２と、この第１ケース２の上部に設けられ、複数の端子室３を設けた第２ケース４とを備えている。第２ケース４は、接点部を構成する可動接点支え５が移動自在に収納されており、複数の端子室３に、固定接触子８が装着されている。固定接触子８は、可動接点支え５の可動接点（不図示）に接続する接点部を構成する固定接点６と、雌型端子部品（不図示）に接続するタブ端子７とを一体化した部品である。これら固定接触子８は、下側が開口した第２ケース４の下方から挿入され、タブ端子７が端子室３を通過して上方に延在するように装着されている。 8 and FIG. 9 shows a structure similar to that of Patent Document 1, and shows a conventional electromagnetic contactor in which a fixed contact is provided with a male terminal such as a tab terminal and a fixed contact, for example.
The electromagnetic contactor shown in FIG. 8 includes a first case 2 in which the electromagnet 1 is housed, and a second case 4 provided on the first case 2 and provided with a plurality of terminal chambers 3. In the second case 4, a movable contact support 5 constituting a contact portion is movably accommodated, and fixed contacts 8 are attached to the plurality of terminal chambers 3. The fixed contact 8 is a component in which a fixed contact 6 constituting a contact portion connected to a movable contact (not shown) of the movable contact support 5 and a tab terminal 7 connected to a female terminal component (not shown) are integrated. It is. These fixed contacts 8 are inserted from the lower side of the second case 4 opened at the lower side, and are mounted so that the tab terminals 7 pass through the terminal chamber 3 and extend upward.

また、図９に示す電磁接触器は、第２ケース４に設けた端子室３の端子台１２上に、可動接点支えの可動接点（不図示）に対向する固定接点１３ａを備えた第１部品１３の固定片１３ｂと、端子室３から上方に延在するタブ端子１４ａを備えた第２部品１４の固定片１４ｂとが重なって配置され、これら固定片１３ｂ、１４ｂ及び端子台１２が、固定ねじ１５により一体に固定されている。   Further, the electromagnetic contactor shown in FIG. 9 includes a first component having a fixed contact 13a facing a movable contact (not shown) of a movable contact support on a terminal block 12 of a terminal chamber 3 provided in the second case 4. 13 fixed pieces 13b and a fixed piece 14b of the second component 14 provided with a tab terminal 14a extending upward from the terminal chamber 3 are arranged so as to overlap, and the fixed pieces 13b, 14b and the terminal block 12 are fixed. The screws 15 are integrally fixed.

特開平６−３１００１０号公報JP-A-6-310010

ところで、図８に示すように、第２ケース４の下側が開口しており、固定接触子８と電磁石１を構成するコイルとの絶縁距離を確保するために、第２ケース４の高さ寸法Ｈを大きく設定しなければならず、外径寸法が増大した電磁接触器となるので、小型化の面で問題がある。   By the way, as shown in FIG. 8, the lower side of the second case 4 is opened, and the height dimension of the second case 4 is secured in order to secure an insulation distance between the stationary contact 8 and the coil constituting the electromagnet 1. Since H has to be set large and the outer diameter is increased, there is a problem in terms of miniaturization.

また、図９に示すように、固定接触子が第１部品１３及び第２部品１４で構成されており、組み立て効率の面で問題がある。
さらに、図９に示すように、第２部品１４のタブ端子１４ａには、雌型端子部品（不図示）との接続が解除されるときに、矢印で示す引き抜き荷重が作用するが、この引き抜き荷重は、第２部品１４（及び第１部品１３）が端子台１２に固定ねじ１５を介して固定されている方向と同一方向である。したがって、雌型端子部品を引き抜く動作を繰り返すと、第１部品１３、第２部品１４及び端子台１２の固定強度に影響を与えるおそれがある。 Further, as shown in FIG. 9, the stationary contact is composed of the first part 13 and the second part 14, and there is a problem in terms of assembly efficiency.
Furthermore, as shown in FIG. 9, when the connection with the female terminal component (not shown) is released, the pull-out load indicated by the arrow acts on the tab terminal 14a of the second component 14. The load is in the same direction as the direction in which the second component 14 (and the first component 13) is fixed to the terminal block 12 via the fixing screw 15. Therefore, if the operation of pulling out the female terminal component is repeated, the fixing strength of the first component 13, the second component 14, and the terminal block 12 may be affected.

そこで、本発明は上記従来例の未解決の課題に着目してなされたものであり、小型化を図り、部品点数の減少により組み立て効率を良好とし、雌型端子部品の引き抜き動作を繰り返しても、筐体への固定接触子の固定強度が低下しない電磁接触器を提供することを目的としている。   Therefore, the present invention has been made paying attention to the above-mentioned unsolved problems of the conventional example, and it is possible to reduce the size, improve the assembly efficiency by reducing the number of parts, and repeat the extraction operation of the female terminal parts. An object of the present invention is to provide an electromagnetic contactor in which the fixing strength of the fixed contact to the housing does not decrease.

上記目的を達成するために、一の実施形態に係る電磁接触器は、電源側の端子と負荷側の端子とを背面側で対向させ、それら端子の間の空間に可動接点支えを収納し、複数の隔壁で仕切って複数の端子室を形成し、これら端子室に、前記端子として固定接点と、雌型端子部品に接続する雄型端子とを有する固定接触子が装着されている筐体を備えた電磁接触器において、前記固定接点、前記雄型端子及び被係合部を一体に形成した固定接触子とし、前記端子室に、前記被係合部を圧入により係合させる圧入係合部を設け、前記圧入係合部に対する前記被係合部の圧入方向を、前記雄型端子に雌型端子部品が引き抜き・接続動作を行う方向に対して異なる方向とした。   In order to achieve the above object, an electromagnetic contactor according to an embodiment has a power-side terminal and a load-side terminal opposed to each other on the back side, and a movable contact support is accommodated in a space between these terminals. A plurality of terminal chambers are formed by partitioning with a plurality of partition walls, and a housing in which a fixed contact having a fixed contact as a terminal and a male terminal connected to a female terminal component is mounted in the terminal chamber. In the electromagnetic contactor provided, the fixed contact, the male terminal, and the engaged part are formed as a fixed contact, and the press-fitting engaging part is engaged with the terminal part by press-fitting into the terminal chamber. And the press-fitting direction of the engaged portion with respect to the press-fitting engaging portion is different from the direction in which the female terminal component pulls out and connects to the male terminal.

この一の実施形態に係る電磁接触器によると、雄型端子及び固定接点を一体形成した部品であり、固定接触子を組み立てる手間が省かれるので、電磁接触器の組み立て効率を良好とすることができる。
また、圧入係合部に対する被係合部の圧入方向を、雄型端子に雌型端子部品が引き抜き・接続動作を行う方向に対して異なる方向としたことから、固定接触子の固定強度を十分に確保することができる。 According to the electromagnetic contactor according to this embodiment, the male contact and the fixed contact are integrally formed parts, and the trouble of assembling the fixed contact is saved, so that the assembly efficiency of the electromagnetic contactor can be improved. it can.
In addition, since the press-fitting direction of the engaged portion with respect to the press-fitting engagement portion is different from the direction in which the female terminal component is pulled out and connected to the male terminal, the fixing contact strength is sufficient. Can be secured.

また、一の実施形態に係る電磁接触器は、前記固定接触子に設けた前記被係合部は、前記雄型端子の近傍に形成した第１被圧入部と、前記固定接点の近傍に形成した第２被圧入部とを備え、前記端子室に設けた圧入係合部は、前記第１被圧入部が圧入される第１圧入空間と、前記第２被圧入部が圧入される第２圧入空間とを備えている。   In the electromagnetic contactor according to one embodiment, the engaged portion provided in the fixed contact is formed in the vicinity of the first press-fit portion formed in the vicinity of the male terminal and the fixed contact. A press-fit engagement portion provided in the terminal chamber includes a first press-fit space into which the first press-fit portion is press-fitted, and a second press-fit into the second press-fit portion. Press-fit space.

この一の実施形態に係る電磁接触器によると、雄型端子にこじり外力が作用する場合があるが、雄型端子から離間して配置した第２被圧入部及び第２圧入空間が、こじり外力に対して大きな反力モーメントが作用するので、こじり外力に対する固定強度も十分に確保することができる。
また、一の実施形態に係る電磁接触器は、前記圧入係合部に前記被係合部が圧入されている前記固定接触子が圧入方向に対して逆方向に抜けるのを防止する抜け止め部を設けた。 According to the electromagnetic contactor according to this embodiment, the external force may act on the male terminal, but the second press-fit portion and the second press-in space that are arranged apart from the male terminal are subjected to the external force. Since a large reaction force moment acts on, the fixing strength against the external force can be sufficiently secured.
In addition, the electromagnetic contactor according to the embodiment includes a retaining portion that prevents the fixed contact, in which the engaged portion is press-fitted into the press-fitting engagement portion, from coming off in a direction opposite to the press-fitting direction. Was provided.

本発明に係る電磁接触器によると、固定接点、雄型端子及び被係合部を一体に形成した固定接触子とし、端子室に、被係合部を圧入により係合させる圧入係合部を設け、圧入係合部に対する被係合部の圧入方向を、前記雄型端子に雌型端子部品が引き抜き・接続動作を行う方向に対して異なる方向としたことから、部品点数の減少により組み立て効率を良好とし、雌型端子部品の引き抜き動作を繰り返しても、筐体への固定接触子の固定強度が低下しない電磁接触器を提供することができる。   According to the electromagnetic contactor of the present invention, the fixed contact, the male terminal, and the engaged portion are formed as a fixed contact, and the press-fitting engagement portion that engages the engaged portion by press-fitting to the terminal chamber. Since the press-fitting direction of the engaged portion with respect to the press-fitting engagement portion is different from the direction in which the female terminal component is pulled out and connected to the male terminal, the assembly efficiency is reduced by reducing the number of components. It is possible to provide an electromagnetic contactor in which the fixing strength of the fixed contact to the housing does not decrease even if the pulling operation of the female terminal component is repeated.

タブ端子を固定接触子に備えた電磁接触器を示す斜視図である。It is a perspective view which shows the electromagnetic contactor provided with the tab terminal in the stationary contact. 電磁接触器の内部構造を示す断面図である。It is sectional drawing which shows the internal structure of an electromagnetic contactor. 電磁接触器の接点部を示す図である。It is a figure which shows the contact part of an electromagnetic contactor. 電磁接触器の端子室の内部を示す図である。It is a figure which shows the inside of the terminal chamber of an electromagnetic contactor. （ａ）は図４のＡ−Ａ線矢視図、（ｂ）は図４のＢ−Ｂ線矢視図である。(A) is the AA arrow directional view of FIG. 4, (b) is the BB arrow directional view of FIG. 第１実施形態の固定接触子の形状を示す図である。It is a figure which shows the shape of the stationary contact of 1st Embodiment. 第２実施形態の固定接触子の形状を示す図である。It is a figure which shows the shape of the stationary contact of 2nd Embodiment. 従来のタブ端子を固定接触子に備えた電磁接触器を示す断面図である。It is sectional drawing which shows the electromagnetic contactor provided with the conventional tab terminal in the stationary contact. タブ端子と固定接点とを別部材で構成した固定接触子を示す図である。It is a figure which shows the stationary contact which comprised the tab terminal and the stationary contact by another member.

以下、本発明に係る電磁接触器を実施するための最良の形態（以下、実施形態という。）を、図面を参照しながら詳細に説明する。
本実施形態の電磁接触器は、図１及び図２に示すように、絶縁性を有する剛性樹脂材で形成した下ケース１８ａ及び上ケース１８ｂを備えている。上ケース１８ｂは、複数の固定接触子３１と一対のコイル端子３２とを配置した装置であり、下ケース１８ａ内に電磁石２８が収納され、下ケース１８ａの上部開口に上ケース１８ｂが装着されている。 Hereinafter, the best mode for carrying out an electromagnetic contactor according to the present invention (hereinafter referred to as an embodiment) will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, the electromagnetic contactor of the present embodiment includes a lower case 18a and an upper case 18b formed of a rigid resin material having insulating properties. The upper case 18b is a device in which a plurality of fixed contacts 31 and a pair of coil terminals 32 are arranged. An electromagnet 28 is housed in the lower case 18a, and the upper case 18b is mounted on the upper opening of the lower case 18a. Yes.

電磁石２８は、図２に示すように、電磁コイル２８ａを巻装した合成樹脂製のコイル枠２８ｂと、このコイル枠２８ｂの空洞部に挿入され、下ケース１８ａの側壁に固定されている固定鉄芯２８ｃと、この固定鉄芯２８ｃに接離自在に対向し、コイル枠２８ｂの空洞部に挿入されている可動鉄芯２８ｄと、この可動鉄芯２８ｄを配置したコイル枠２８ｂの一端側に一体形成されている互いに離間した一対のコイル端子台（不図示）とを備え、一対のコイル端子台に、それぞれ一対のコイル端子３２が装着されている。   As shown in FIG. 2, the electromagnet 28 includes a synthetic resin coil frame 28b around which an electromagnetic coil 28a is wound, and a fixed iron that is inserted into a hollow portion of the coil frame 28b and fixed to the side wall of the lower case 18a. A core 28c, a movable iron core 28d that faces the fixed iron core 28c so as to be freely contacted and separated, and is inserted into a hollow portion of the coil frame 28b, and one end of the coil frame 28b on which the movable iron core 28d is disposed are integrated with each other. A pair of spaced apart coil terminal blocks (not shown) are formed, and a pair of coil terminals 32 are mounted on the pair of coil terminal blocks, respectively.

上ケース１８ｂには、前述した固定接触子３１をそれぞれ装着した負荷側の複数の端子室２０ａ〜２０ｅと、固定接触子３１をそれぞれ装着した電源側の複数の端子室２１ａ〜２１ｅとが互いに背面側で対向して設けられており、これら端子室２０ａ〜２０ｅ、端子室２１ａ〜２１ｅの間に設けた収納空間Ｓに接点部２２が収納され、接点部２２を覆う消弧カバー２３ａと、固定接触子３１の基部を覆う接触子カバー２３ｂとが上ケース１８ｂに装着されている。   The upper case 18b has a plurality of load-side terminal chambers 20a to 20e each having the above-described fixed contact 31 mounted thereon, and a plurality of power-side terminal chambers 21a to 21e each having the fixed contact 31 mounted to the back. The contact portion 22 is stored in the storage space S provided between the terminal chambers 20a to 20e and the terminal chambers 21a to 21e, and the arc-extinguishing cover 23a that covers the contact portion 22 is fixed. A contact cover 23b that covers the base of the contact 31 is attached to the upper case 18b.

接点部２２は、図２及び図３に示すように、合成樹脂製の可動接点支え２２ａと、復帰ばね２２ｂと、複数の可動接点２２ｃ及び複数の接点ばね２２ｄを備えている。可動接点支え２２ａは、電磁石２８の可動鉄芯２８ｄの移動方向と平行に移動するように配置され、移動方向の一側に設けた駆動レバー２２ａ１が可動鉄芯２８ｄに連動可能に係合する。   As shown in FIGS. 2 and 3, the contact portion 22 includes a synthetic resin movable contact support 22a, a return spring 22b, a plurality of movable contacts 22c, and a plurality of contact springs 22d. The movable contact support 22a is disposed so as to move in parallel with the moving direction of the movable iron core 28d of the electromagnet 28, and a drive lever 22a1 provided on one side of the moving direction engages with the movable iron core 28d in an interlocking manner.

復帰ばね２２ｂは、可動接点支え２２ａの一側に向けてばね付勢力を作用して上ケース１８ｂ内に配置されている。複数の可動接点２２ｃは、可動接点支え２２ａと同一方向に移動可能となるように、各々が接点ばね２２ｄに支持されて可動接点支え２２ａ内に配置されている。また、複数の接点ばね２２ｄは、復帰ばね２２ｂがばね付勢力を作用する方向に対して逆方向に、各々の可動接点２２ｃにばね付勢力を作用して配置されている。   The return spring 22b is disposed in the upper case 18b by applying a spring biasing force toward one side of the movable contact support 22a. The plurality of movable contacts 22c are each supported by a contact spring 22d and disposed in the movable contact support 22a so as to be movable in the same direction as the movable contact support 22a. Further, the plurality of contact springs 22d are arranged by applying a spring biasing force to each movable contact 22c in a direction opposite to the direction in which the return spring 22b applies the spring biasing force.

負荷側の端子室２０ａ〜２０ｅは、図１に示すように、互いに平行に離間配置した複数の第１隔壁２４ａ〜２４ｅで仕切ることで形成されている。
端子室２０ａは、図４に示すように、互いに平行に対向している第１隔壁２４ａ，２４ｂと、接点部２２を配置した収納空間Ｓとの間を仕切って形成した第２隔壁２５により前記収納空間Ｓとは異なる空間として設けられている。 As shown in FIG. 1, the load-side terminal chambers 20 a to 20 e are formed by partitioning with a plurality of first partition walls 24 a to 24 e that are spaced apart from each other in parallel.
As shown in FIG. 4, the terminal chamber 20a is formed by the second partition wall 25 formed by partitioning the first partition walls 24a and 24b facing each other in parallel with the storage space S in which the contact portion 22 is disposed. A space different from the storage space S is provided.

また、端子室２０ａには、端子室２０ａの底面から立ち上がる立上がり板部１９ｂと、端子室２０ａの高さ方向中央部の立上がり板部１９ｂの頂部から横方向に延在する座板部１９ｃとが、第２隔壁２５から前方に突出して形成されている。
そして、端子室２０ａには、固定接点挿入空間２６が形成されているとともに（図４参照）、第１圧入空間２７（図５（ａ）参照）と、第２圧入空間２９（図５（ｂ））が形成されている。 The terminal chamber 20a has a rising plate portion 19b that rises from the bottom surface of the terminal chamber 20a and a seat plate portion 19c that extends laterally from the top of the rising plate portion 19b at the center in the height direction of the terminal chamber 20a. , And protrudes forward from the second partition wall 25.
A fixed contact insertion space 26 is formed in the terminal chamber 20a (see FIG. 4), a first press-fit space 27 (see FIG. 5A), and a second press-fit space 29 (see FIG. 5B). )) Is formed.

すなわち、固定接点挿入空間２６は、図４に示すように、第１隔壁２４ａ，２４ｂ、第２隔壁２５で囲まれた空間であるとともに、立上がり板部１９ｂに沿って第２隔壁２５に形成した挿入スリット２５ａを介して接点部２２を配置した収納空間Ｓに連通している。
また、第１圧入空間２７は、図５（ａ）に示すように、座板部１９ｃの上方において座板部１９ｃと平行に第２隔壁２５から前方に突出している第１突出部２７ａの間の空間である。 That is, as shown in FIG. 4, the fixed contact insertion space 26 is a space surrounded by the first partition walls 24a and 24b and the second partition wall 25, and is formed in the second partition wall 25 along the rising plate portion 19b. It communicates with the storage space S in which the contact portion 22 is disposed via the insertion slit 25a.
Further, as shown in FIG. 5A, the first press-fit space 27 is formed between the first projecting portions 27a projecting forward from the second partition wall 25 in parallel with the seat plate portions 19c above the seat plate portions 19c. Space.

また、第２圧入空間２９は、図５（ｂ）に示すように、端子室２０ａの底部に設けた平坦な底面２９ａと、底面２９ａの上部において底面２９ａに平行に延在し、前述した挿入スリット２５ａに向けて前方に突出している第２突出部２９ａとの間の空間である。そして、第２突出部２９ａの奥側には、上下方向の高さが異なる段差部２９ｃが形成されている。   Further, as shown in FIG. 5B, the second press-fit space 29 extends in parallel to the bottom surface 29a at the top of the bottom surface 29a and the flat bottom surface 29a provided at the bottom of the terminal chamber 20a. It is a space between the second projecting portion 29a projecting forward toward the slit 25a. A stepped portion 29c having a different height in the vertical direction is formed on the back side of the second projecting portion 29a.

一方、端子室２０ａに装着される固定接触子３１は、図７に示すように、端子室２０ａの座板部１９ｃの上部に当接する平面視長方形状の当接板３１ａと、この当接板３１ａの長手方向の一方において幅方向の一側から略直角に折曲されて延在するタブ端子３１ｂと、当接板３１ａの長手方向の他方において幅方向の他側からタブ端子３１ｂとは逆側に略直角に折曲されて延在する折曲板３１ｃと、この折曲板３１ｃの長手方向の中央部から当接板３１ａに対して離間する方向に延在する固定接点３１ｄと、当接板３１ａの長手方向の他方において幅方向の一側から突出して設けた第１被圧入板３１ｅと、折曲板３１ｃの先端部において当接板３１ａに対して離間する方向に突出して設けた第２被圧入板３１ｆと、折曲板３１ｃの先端側に近接する固定接点３１ｄの端部に形成した係合歯３１ｇと、を備えている。   On the other hand, as shown in FIG. 7, the fixed contact 31 attached to the terminal chamber 20 a has a rectangular contact plate 31 a in contact with the upper portion of the seat plate portion 19 c of the terminal chamber 20 a and the contact plate. The tab terminal 31b that is bent and extends substantially perpendicularly from one side in the width direction on one side in the longitudinal direction of 31a, and the tab terminal 31b from the other side in the width direction on the other side in the longitudinal direction of the contact plate 31a is opposite. A bent plate 31c that is bent substantially at right angles to the side, a fixed contact 31d that extends in a direction away from the abutment plate 31a from the center in the longitudinal direction of the bent plate 31c, The first press-fitted plate 31e provided to protrude from one side in the width direction on the other side in the longitudinal direction of the contact plate 31a, and the protrusion plate 31c provided to protrude in a direction away from the contact plate 31a. Close to the tip side of the second press-fit plate 31f and the bent plate 31c And teeth 31g formed on the end portion of the fixed contact 31d which comprises a.

そして、上記構成の固定接触子３１を、上ケース１８ｂの側方から端子室２０ａ内に挿入し、固定接点３１ｄを固定接点挿入空間２６を介して収納空間Ｓに配置するとともに、図５（ａ）に示すように、第１被圧入板３１ｅを第１圧入空間２７に圧入し、図５（ｂ）に示すように第２被圧入板３１ｆを第２圧入空間２９に圧入して端子室２０ａ内に装着する。この際、固定接触子３１の係合歯３１ｇは、第２圧入空間２９の奥側に設けた段差部２８ｃに乗り上げた後に段差部２９ｃに係合する。   And the fixed contact 31 of the said structure is inserted in the terminal chamber 20a from the side of the upper case 18b, the fixed contact 31d is arrange | positioned in the storage space S via the fixed contact insertion space 26, FIG. ), The first press-fit plate 31e is press-fitted into the first press-fit space 27, and the second press-fit plate 31f is press-fitted into the second press-fit space 29 as shown in FIG. Install inside. At this time, the engaging teeth 31 g of the fixed contact 31 are engaged with the stepped portion 29 c after riding on the stepped portion 28 c provided on the back side of the second press-fitting space 29.

固定接点挿入空間２６に挿入した固定接触子３１の固定接点３１ｄは、接点部２２の複数の可動接点２２ｃの移動方向に接離可能に配置される。
また、他の負荷側の端子室２０ｂ〜２０ｅ及び固定接触子３１も、上述した端子室２０ａ及び固定接触子３１と同一形状で形成されているので同一構造により配置される。さらに、電源側の複数の端子室２１ａ〜２１ｅも、上述した端子室２０ａ及び固定接触子３１と同一形状で形成され、同一構造で配置される。 The fixed contact 31d of the fixed contact 31 inserted into the fixed contact insertion space 26 is disposed so as to be able to contact and separate in the moving direction of the plurality of movable contacts 22c of the contact portion 22.
In addition, the other load-side terminal chambers 20b to 20e and the stationary contact 31 are also formed in the same shape as the terminal chamber 20a and the stationary contact 31 described above, and thus are arranged in the same structure. Further, the plurality of terminal chambers 21a to 21e on the power source side are also formed in the same shape as the terminal chamber 20a and the fixed contact 31 described above, and are arranged in the same structure.

なお、本発明の筐体が上ケース１８ｂに対応し、本発明の端子が、固定接触子３１に対応し、本発明の隔壁が第１隔壁２４ａ〜２４ｅ、第２隔壁２５に対応し、本発明の固定接点が固定接点３１ｄに対応し、本発明の雄型端子がタブ端子３１ｂに対応し、本発明の第１被圧入部が第１被圧入板３１ｅに対応し、本発明の第２被圧入部が第２被圧入板３１ｆに対応し、本発明の圧入係合部が第１圧入空間２７、第２圧入空間２９に対応し、本発明の抜け止め部が固定接触子３１の係合歯３１ｇ及び第２圧入空間２９の奥側に設けた段差部２９ｃに対応している。   The housing of the present invention corresponds to the upper case 18b, the terminal of the present invention corresponds to the stationary contact 31, the partition of the present invention corresponds to the first partition 24a to 24e, the second partition 25, The fixed contact of the invention corresponds to the fixed contact 31d, the male terminal of the invention corresponds to the tab terminal 31b, the first press-fit portion of the invention corresponds to the first press-fit plate 31e, and the second of the invention The press-fit portion corresponds to the second press-fit plate 31f, the press-fit engagement portion of the present invention corresponds to the first press-fit space 27 and the second press-fit space 29, and the retaining portion of the present invention relates to the fixed contact 31. It corresponds to the stepped portion 29c provided on the back side of the tooth 31g and the second press-fit space 29.

したがって、本実施形態の固定接触子３１は、タブ端子３１ｂ及び固定接点３１ｄを一体形成した部品であり、固定接触子３１を組み立てる手間が省かれるので、電磁接触器の組み立て効率を良好とすることができる。
また、本実施形態の固定接触子３１は、タブ端子３１ｂ及び固定接点３１ｄを一体形成した部品であっても、上ケース１８ｂの側方から端子室２０ａ〜２０ｅ、２１ａ〜２１ｅ内に装着されるものであり、従来装置のような下側が開口した外径寸法が増大したケースを使用しないので、装置の小型化を図ることができる。 Therefore, the fixed contact 31 of the present embodiment is a component in which the tab terminal 31b and the fixed contact 31d are integrally formed, and the time and labor for assembling the fixed contact 31 are saved, so that the assembly efficiency of the electromagnetic contactor is improved. Can do.
Moreover, even if the fixed contact 31 of this embodiment is a component which integrally formed the tab terminal 31b and the fixed contact 31d, it is mounted | worn in the terminal chambers 20a-20e and 21a-21e from the side of the upper case 18b. Thus, since the case having an increased outside diameter with an open bottom like the conventional apparatus is not used, the apparatus can be reduced in size.

また、本実施形態の固定接触子３１は、タブ端子３１ｂに対して雌型端子部品の接続・引き抜き動作を行うと、図５（ａ）に示す矢印方向の外力がタブ端子３１ｂに作用するが、本実施形態の固定接触子３１の第１被圧入板３１ｅ、第２被圧入板３１ｆは、前述した外力に直交する方向（上ケース１８ｂの側方）から第１圧入空間２７、第２圧入空間２９に圧入により保持されているので、雌型端子部品の接続・引き抜き動作を繰り返しても、固定接触子３１の固定強度を十分に確保することができる。   In addition, when the fixed contact 31 of the present embodiment performs the connection / extraction operation of the female terminal component with respect to the tab terminal 31b, the external force in the arrow direction shown in FIG. 5A acts on the tab terminal 31b. The first press-fitted plate 31e and the second press-fitted plate 31f of the fixed contact 31 of this embodiment are the first press-fitting space 27 and the second press-fitted from the direction perpendicular to the external force (the side of the upper case 18b). Since it is held in the space 29 by press-fitting, the fixing strength of the fixed contact 31 can be sufficiently ensured even if the connection / extraction operation of the female terminal component is repeated.

そして、図５（ｂ）に示すように、雌型端子部品の接続・引き抜き動作を行う際に、タブ端子３１ｂにこじり外力が作用する場合がある。本実施形態では、タブ端子３１ｂから離間した折曲板３１ｃの先端部に第２被圧入板３１ｆが設けられ第２圧入空間２９で圧入保持されており、タブ端子３１ｂに作用するこじり外力に対して第２被圧入板３１ｆから大きな反力モーメントが作用するので、こじり外力に対する固定強度も十分に確保することができる。   And as shown in FIG.5 (b), when performing connection and extraction operation | movement of a female-type terminal component, an external force may be applied to the tab terminal 31b in some cases. In the present embodiment, a second press-fitted plate 31f is provided at the tip of the bent plate 31c separated from the tab terminal 31b and is press-fitted and held in the second press-fitting space 29, so that the external force acting on the tab terminal 31b is not affected. Since a large reaction force moment acts from the second press-fitted plate 31f, it is possible to sufficiently secure the fixing strength against the external force.

さらに、固定接触子３１の係合歯３１ｇは、第２圧入空間２９の奥側に設けた段差部２９ｃに乗り上げた後に段差部２９ｃに係合しているので、第１圧入空間２７、第２圧入空間２９に対して第１被圧入板３１ｅ、第２被圧入板３１ｆが引き抜かれるのを確実に防止することができる。
なお、本実施形態では、タブ端子３１ｂを設けた固定接触子３１について説明したが、図７に示すように、プリント基板用端子３１ｈを備えた固定接触子３１を使用しても、同様の効果を奏することができる。 Further, since the engaging teeth 31g of the fixed contact 31 are engaged with the stepped portion 29c after riding on the stepped portion 29c provided on the back side of the second press-fitted space 29, the first press-fitted space 27, the second It is possible to reliably prevent the first press-fit plate 31e and the second press-fit plate 31f from being pulled out from the press-fit space 29.
In the present embodiment, the fixed contact 31 provided with the tab terminal 31b has been described. However, as shown in FIG. 7, even if the fixed contact 31 provided with the printed circuit board terminal 31h is used, the same effect is obtained. Can be played.

１８ａ…下ケース、１８ｂ…上ケース、１９ｂ…立上がり板部、１９ｃ…座板部、２０ａ〜２０ｅ…端子室、２１ａ〜２１ｅ…端子室、２２…接点部、２２ａ１…駆動レバー、２２ｃ…可動接点、２３ａ…消弧カバー、２３ｂ…接触子カバー、２４ａ〜２４ｅ…第１隔壁、２５…第２隔壁、２５ａ…挿入スリット、２６…固定接点挿入空間、２７…第１圧入空間、２７ａ…突出部、２８ａ…電磁コイル、２８ｂ…コイル枠、２８ｃ…固定鉄芯、２８ｄ…可動鉄芯、２９…第２圧入空間、２９ａ…底面、２９ａ…突出部、２９ｃ…段差部、２８…電磁石、３１…固定接触子、３１ａ…当接板、３１ｂ…タブ端子、３１ｃ…折曲板、３１ｄ…固定接点、３１ｅ…第１被圧入板、３１ｆ…第２被圧入板、３１ｇ…係合歯、３１ｈ…プリント基板用端子、Ｓ…収納空間、３２…コイル端子   18a ... Lower case, 18b ... Upper case, 19b ... Rising plate portion, 19c ... Seat plate portion, 20a-20e ... Terminal chamber, 21a-21e ... Terminal chamber, 22 ... Contact portion, 22a1 ... Drive lever, 22c ... Movable contact , 23a ... arc extinguishing cover, 23b ... contactor cover, 24a-24e ... first partition, 25 ... second partition, 25a ... insertion slit, 26 ... fixed contact insertion space, 27 ... first press-fit space, 27a ... projection 28a ... Electromagnetic coil, 28b ... Coil frame, 28c ... Fixed iron core, 28d ... Movable iron core, 29 ... Second press-fit space, 29a ... Bottom surface, 29a ... Projection part, 29c ... Step part, 28 ... Electromagnet, 31 ... Fixed contact, 31a ... contact plate, 31b ... tab terminal, 31c ... bent plate, 31d ... fixed contact, 31e ... first press-fit plate, 31f ... second press-fit plate, 31g ... engaging tooth, 31h ... PCB edge , S ... storage space, 32 ... coil terminal

Claims (3)

電源側の端子と負荷側の端子とを背面側で対向させ、それら端子の間の空間に可動接点支えを収納し、複数の隔壁で仕切って複数の端子室を形成し、これら端子室に、前記端子として固定接点と、雌型端子部品に接続する雄型端子とを有する固定接触子が装着されている筐体を備えた電磁接触器において、
前記固定接点、前記雄型端子及び被係合部を一体に形成した固定接触子とし、
前記端子室に、前記被係合部を圧入により係合させる圧入係合部を設け、
前記圧入係合部に対する前記被係合部の圧入方向を、前記雄型端子に雌型端子部品が引き抜き・接続動作を行う方向に対して異なる方向としたことを特徴とする電磁接触器。 The terminal on the power supply side and the terminal on the load side are made to face each other on the back side, the movable contact support is accommodated in the space between these terminals, divided into a plurality of partition walls to form a plurality of terminal chambers, In an electromagnetic contactor comprising a housing on which a fixed contact having a fixed contact as a terminal and a male terminal connected to a female terminal component is mounted,
The fixed contact, the male terminal, and a fixed contact formed integrally with the engaged portion,
The terminal chamber is provided with a press-fit engagement portion that engages the engaged portion by press-fitting,
An electromagnetic contactor characterized in that a press-fitting direction of the engaged portion with respect to the press-fitting engagement portion is different from a direction in which a female terminal component pulls out and connects to the male terminal. 前記固定接触子に設けた前記被係合部は、前記雄型端子の近傍に形成した第１被圧入部と、前記固定接点の近傍に形成した第２被圧入部とを備え、
前記端子室に設けた圧入係合部は、前記第１被圧入部が圧入される第１圧入空間と、前記第２被圧入部が圧入される第２圧入空間とを備えていることを特徴とする請求項１記載の電磁接触器。 The engaged portion provided in the fixed contact includes a first pressed-in portion formed in the vicinity of the male terminal, and a second pressed-in portion formed in the vicinity of the fixed contact,
The press-fit engagement portion provided in the terminal chamber includes a first press-fit space into which the first press-fit portion is press-fitted and a second press-fit space into which the second press-fit portion is press-fitted. The electromagnetic contactor according to claim 1. 前記圧入係合部に前記被係合部が圧入されている前記固定接触子が圧入方向に対して逆方向に抜けるのを防止する抜け止め部を設けたことを特徴とする請求項１又は２記載の電磁接触器。
3. A retaining portion for preventing the fixed contact member into which the engaged portion is press-fitted in the press-fitting engagement portion from being pulled out in a direction opposite to the press-fitting direction is provided. The described magnetic contactor.
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