WO2006068229A1 - Connector for electric fuse igniter - Google Patents

Connector for electric fuse igniter Download PDF

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Publication number
WO2006068229A1
WO2006068229A1 PCT/JP2005/023614 JP2005023614W WO2006068229A1 WO 2006068229 A1 WO2006068229 A1 WO 2006068229A1 JP 2005023614 W JP2005023614 W JP 2005023614W WO 2006068229 A1 WO2006068229 A1 WO 2006068229A1
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WO
WIPO (PCT)
Prior art keywords
connector
molded
molding
coating
molded part
Prior art date
Application number
PCT/JP2005/023614
Other languages
French (fr)
Japanese (ja)
Inventor
Takehiko Osuga
Original Assignee
Fci Asia Technology Pte Ltd.
Fci
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fci Asia Technology Pte Ltd., Fci filed Critical Fci Asia Technology Pte Ltd.
Publication of WO2006068229A1 publication Critical patent/WO2006068229A1/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24Assembling by moulding on contact members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings

Definitions

  • the present invention relates to an electrical connector for an electric fuse igniter, and more particularly to an electrical connector with improved watertightness of the connector and a method for manufacturing the electrical connector.
  • an electrical contact portion is arranged inside and a connector main body is formed by injection molding. Then, a method of forming a locking projection with the mating connector on the surface of the connector body by injection molding is common.
  • Patent Document 1 Japanese Patent Application No. 2003-281571
  • the manufacturing method of the connector has made it possible to arrange the electrical contact in the first process.
  • the first molded part such as a cylinder, is injection-molded together with a locking projection for locking with the mating connector, and an electrical contact is placed inside the first molded part in the second step, and then an electric wire is connected to the electrical contact.
  • the second molding part may be injection-molded so as to cover the first molding part together with the electric wire joined to the electrical contact.
  • the completed connector has a high water tightness in order to protect the electrical system from water droplets and the like in each of the first step and the second step.
  • the locking projections that are locked when mating with the mating connector require a certain hardness against the frictional force, or because of the functions required for each part, Parts are generally molded using different materials and have high water tightness No connector is disclosed. Means for solving the problem
  • the connector of the present invention includes a first molded part formed by the first injection molding and a second molded part formed by the second injection molding. It is a separately formed connector, in which the first molded part has an electrical contact disposed therein, an elastic protrusion is provided on the outer surface, and the second molded part is an electric wire joined to the electrical contact. A member for forming a sealing portion between the collar portion and the elastic protrusion, and a collar portion is provided on the surface of the connector main body. The coating covering the electric wire is welded to the second molded part to form a welded film part.
  • the welding coating portion in the connector of the present invention is such that the coating covering the electric wire melts during the second injection molding of the second molding portion, and the molten coating is the electric wire and It is formed by being in close contact with the second molded part, and has a watertight ability to close the gap between the second molded part and the electric wire.
  • the first molded portion and the second molded portion are made of the same material.
  • the connector manufacturing method of the present invention includes the process of forming the first molding part by the first injection molding so that the outside of the electrical contour can be disposed inside, and the electrical contact. A part of the electrically connected electric wire and part of the coating thereof and the process of forming the second molded part by the second injection molding so as to cover the first molded part, and occurs during the second injection molding. A part of the coating of the electric wire is welded to the second molding part and the electric wire by the heat to form a welded coating part.
  • a sealing portion is formed between the elastic protrusion formed at the time of the first injection molding and the collar portion formed at the time of the second injection molding. Therefore, the gap formed when the connector of the present invention is mated with the mating connector can be blocked to prevent the entry of foreign matter and the entry of moisture from the outside. Since the coating that covers the electric wires by the heat generated during the second injection molding that forms the film is welded to the second molded part to form the welded film part, intrusion of water droplets and the like from the outside is blocked.
  • the weld coating part is melted by heat generated at the time of the second injection molding of the second molding part, and the melted coating adheres to the electric wire and the second molding part. Since it is formed and has a water tightness that closes the gap between the second molded part and the electric wire, it is possible to prevent the occurrence of dew droplets caused by temperature differences and the like in the second molded part.
  • first molded part and the second molded part are made of the same material, when the second molded part covers a part of the first molded part, both are made of the same material and are compatible with each other. Because of its good properties, it has excellent adhesion at the covered part, and can be configured to have a high water tightness at the adhesive part between the first molded part and the second molded part.
  • FIG. 1 (a) and FIG. 1 (b) are perspective views showing the overall shape of a connector 1 according to the present invention having two covered wires 4.
  • FIG. 2 is a four-side view showing the overall appearance of the connector 1 according to the present invention.
  • (A) to (d) are a top view, a bottom view, a side view, and a wire insertion side, respectively. Figure seen from the opposite side.
  • FIG. 3 is a perspective view showing a state in which the electrical contact 12 is arranged inside the first molded part 10 after the first molded part 10 is formed and the electric wire 4 is connected to the electrical contact 12.
  • FIG. 4 is a cross-sectional view taken along the axis X direction of B_B in FIG. 2 (b).
  • FIG. 1 (a) and FIG. 1 (b) are perspective views showing the overall shape of a connector 1 according to the present invention having two covered electric wires 4.
  • FIG. 1 (a) and FIG. 1 (b) are perspective views showing the overall shape of a connector 1 according to the present invention having two covered electric wires 4.
  • FIG. 2 is a four-side view showing the overall appearance of the connector 1 according to the present invention.
  • (A) to (d) are a top view, a bottom view, a side view, and a side opposite to the wire insertion side, respectively. It is a figure
  • FIGS. 1 (a) and 1 (b) and FIGS. 2 (a) to (d) will be described.
  • a first molded part 10 formed by the first injection molding and a second molded part 20 formed by the second injection molding are individually formed.
  • the first molded part 10 is formed so as to have a substantially cylindrical outline, the electrical contact 12 is disposed inside (see FIG. 3), and three elastic protrusions 11 are provided on the circumference.
  • the second molded part 20 is formed in the shape of a front rear circle, and includes an electrical contact 12, a terminal 19 joined to the electrical contact 12, an electric wire 4 joined to the terminal 19, the covering part of the electric wire 4, and the first molded part. It covers a part (see Figure 3). Further, in the vicinity of the edge of the cylindrical portion of the second molded portion 20, a collar portion defined by projecting in a direction perpendicular to the peripheral surface on the peripheral surface of the cylindrical outer shape of the first molded portion 10 is provided. 21 is formed.
  • An elastic member 6 is disposed between the collar portion 21 and the elastic protrusion 11 so as to cover the circumference of the first molding portion 10.
  • the elastic projection 11 is engaged with the edge of the mating connector, so that both connectors are mated, and the elastic member 6 is
  • the connector is positioned so as to seal the gap between the mating parts of both connectors. It prevents foreign matter from entering the inside and water droplets from entering, ensuring the protection of the electrical system.
  • FIG. 3 shows an electrical contact 1 inside the first molded part 10 after the first molded part 10 is formed.
  • FIG. 2 is a perspective view in a state in which 2 is arranged and the electric wire 4 is connected to the electrical contact 12, and each component will be described below.
  • Two electrical contacts 12 are arranged inside the first molded part 10, and from one end of each electrical contact 12, a terminal 19 having a wire gripping part 17 and a wire joint part 13 is provided in the first molded part 10. It extends in the direction perpendicular to the 10 axis X.
  • the wire gripping portion 17 grips the sheath covering the wire 4, and the wire joint portion 13 is in electrical contact with the wire 4 in a state where the vicinity of the distal end portion of the wire 4 that has been stripped and terminated is pressed and held 1
  • a vertical mold in which the second molded part 20 can be defined at the time of the second injection molding by the wire 4 and the vicinity of the upper end opposite to the one end having the elastic projection 11 of the first molded part.
  • the molten resin that can be thermoformed and poured into the mold is poured into the mold, the resin is cooled, and the mold is removed.
  • a welded coating portion that closes the gap between the wire 4 and the second molded portion 20 by utilizing the temperature difference between the melting points of the material of the second molded portion 20 and the material of the coating of the wire 4. It is formed.
  • a molding resin having a melting point higher than that of the insulating coating made of, for example, a bull resin is selected for the electric wire 4, and the molten molding resin is used for the electric wire 4 during the second injection molding.
  • the coating of the wire 4 is also melted under the influence of the temperature of the molten molding resin.
  • the filling of the molding resin into the mold is completed, and the second molding part 20 is formed as the molding resin cools below the melting point.
  • the cover of the melted electric wire 4 is also solidified inside the second molded part 20 as it is cooled below the melting point of the coating material. Therefore, the gap between the wire 4 and the coating and the gap between the coating and the second molded portion 20 are closed. This makes it possible for water droplets to enter from the outside, or for dew droplets to connect due to temperature differences. Since it is generated in the body, the water tightness can be improved with respect to the electrical contact 12 arranged inside the first molded part 10.
  • FIG. 4 is a cross-sectional view taken along the axis X along the line BB in FIG. 2 (b).
  • the wire gripping portion 17 formed at one end of the terminal 19 grips the coating of the wire 4, so that at least the wire gripping portion 17 grips the wire 4 during the second injection molding. If it is arranged in the mold, the above-mentioned weld coating part having liquid-tightness can be formed in the second molding part, and the object of the present invention is achieved. However, even if the wire gripping portion 17 directly grips the wire 4 from which the coating has been peeled off, the molding resin and the covering of the wire 4 can be contacted in the vertical mold during the second injection molding. Similarly, it is obvious to those skilled in the art that the object of the present invention can be achieved.
  • the second molded part 20 covers the vicinity of the end opposite to the one end having the projection 11 of the first molded part 10 including the terminal 19 and the electric wire 4 connected thereto.
  • the first molding part and the second molding part are molded using the same material, and the interface between the first molding part 10 and the second molding part 20 forms the contact surface with the same material. High affinity is obtained, and the first molded part and the second molded part can be strongly bonded and adhered at the interface. This reduces the possibility that the first molded part and the second molded part will come off unexpectedly, and prevents the entry of water droplets from the interface between the first molded part and the second molded part. A watertight ability can be configured.
  • the first mold is formed by injection molding so that an electrical system such as an electrical contact can be disposed inside
  • the second mold is manufactured by coating injection molding (overmolding). Examples of watertightness in the second molded part, watertightness at the interface between the first molded part and the second molded part, and watertightness when the present invention is mated with the mating connector will be explained with examples.
  • the present invention is not limited to the above-described embodiment, and can be modified and changed within the scope of the technical idea of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

A connector in which a first molded section formed by first injection molding and a second molded section formed by second injection molding are individually formed. The first molded section has an electric contact placed in its inside and has an elastic projection provided on its outer surface. The second molded section covers both a coating section of an electric wire joined to the electric contact and a part of the first molded section. Further, in the second molded section, a neck section is provided on the surface of a connector body, a member for forming a sealing section is placed between the neck section and the elastic projection, and the coating covering the electric wire is bonded by melting to form a melted and bonded coating section.

Description

明 細 書  Specification
電気信管点火装置用コネクタ  Connector for electric fuse igniter
技術分野  Technical field
[0001] 本発明は、電気信管点火装置のための電気コネクタに関し、より詳細には、当該コ ネクタの水密能を向上させた電気コネクタ及びその製造方法に関するものである。 背景技術  TECHNICAL FIELD [0001] The present invention relates to an electrical connector for an electric fuse igniter, and more particularly to an electrical connector with improved watertightness of the connector and a method for manufacturing the electrical connector. Background art
[0002] 従来から、車両に搭載されるエアバッグシステム用電気信管点火装置の電気系統 を確立するためのコネクタを製造する方法として、電気コンタクト部を内部に配置して 射出成形によってコネクタ本体を形成し、その後、射出成形によって該コネクタ本体 の表面に相手方コネクタとの係止突起を形成する工法が一般的であった。  Conventionally, as a method of manufacturing a connector for establishing an electrical system of an electric fuse igniter for an air bag system mounted on a vehicle, an electrical contact portion is arranged inside and a connector main body is formed by injection molding. Then, a method of forming a locking projection with the mating connector on the surface of the connector body by injection molding is common.
[0003] 特許文献 1 :特願 2003— 281571号  [0003] Patent Document 1: Japanese Patent Application No. 2003-281571
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] しかし、当該コネクタは、相手方コネクタとの嵌合時に発生する空隙を密封するため の弾性部材を配置する必要があり、コネクタ本体上には、この弾性部材を位置付ける ための襟部を画定することがコネクタの製造上の要件となっていた。しかし、この襟部 がー工程で上記構成のコネクタを成形することを阻害する要因となっていたため、近 年では、当該コネクタの製造方法は、第 1工程で内部に電気コンタクトを配置できるよ うに、相手方コネクタと係止するための係止突起と共に筒形等の第 1成形部を射出成 形し、第 2工程で第 1成形部の内部に電気コンタクトを配置し、次いで、電気コンタクト に電線を接合し、さらには、電気コンタクトに接合された電線と共に第 1成形部を覆う ように第 2成形部を射出成形する工法を採用することもある。  [0004] However, in the connector, it is necessary to arrange an elastic member for sealing a gap generated when mating with the mating connector, and a collar for positioning the elastic member is defined on the connector body. This has been a requirement in the manufacture of connectors. However, since this collar has been a factor that obstructs the formation of the connector having the above structure in the process, in recent years, the manufacturing method of the connector has made it possible to arrange the electrical contact in the first process. The first molded part, such as a cylinder, is injection-molded together with a locking projection for locking with the mating connector, and an electrical contact is placed inside the first molded part in the second step, and then an electric wire is connected to the electrical contact. In some cases, the second molding part may be injection-molded so as to cover the first molding part together with the electric wire joined to the electrical contact.
[0005] この第 1工程と第 2工程でコネクタを形成する工法では、第 1工程と第 2工程それぞ れにおいて電気系統を水滴等から保護するために、完成したコネクタは高い水密能 を持たなければならなレ、が、相手方コネクタと嵌合する際に係止される係止突起は摩 擦力に対して一定の硬度を必要としたり、それぞれの部位で要求される機能から、各 成形部は相違する材質を用いて成形されることが一般的であり、高い水密能を有す るコネクタは開示されていない。 課題を解決するための手段 [0005] In this method of forming a connector in the first step and the second step, the completed connector has a high water tightness in order to protect the electrical system from water droplets and the like in each of the first step and the second step. The locking projections that are locked when mating with the mating connector require a certain hardness against the frictional force, or because of the functions required for each part, Parts are generally molded using different materials and have high water tightness No connector is disclosed. Means for solving the problem
[0006] (1)上記水密能を構成するため、本発明のコネクタは、第 1の射出成形により形成さ れた第 1成形部と第 2の射出成形により形成された第 2成形部とを個別に形成したコ ネクタであって、第 1成形部には、内部に電気コンタクトが配置され、かつ、外表面上 に弾性突起が設けられ、第 2成形部は、電気コンタクトと接合された電線の被覆部と、 第 1成形部の一部とを覆い、かつ、コネクタ本体の表面上に襟部が設けられ、前記襟 部と前記弾性突起との間には密封部を形成するための部材が配置され、電線を覆う 被覆が、第 2成形部に溶着して溶着被膜部を形成している。  [0006] (1) In order to configure the water tightness, the connector of the present invention includes a first molded part formed by the first injection molding and a second molded part formed by the second injection molding. It is a separately formed connector, in which the first molded part has an electrical contact disposed therein, an elastic protrusion is provided on the outer surface, and the second molded part is an electric wire joined to the electrical contact. A member for forming a sealing portion between the collar portion and the elastic protrusion, and a collar portion is provided on the surface of the connector main body. The coating covering the electric wire is welded to the second molded part to form a welded film part.
(2)また、上記水密能を構成するため、本発明のコネクタにおける前記溶着被膜部 は、第 2成形部の第 2の射出成形時に電線を覆う被覆が溶融し、該溶融した被覆が 電線及び第 2成形部に密着することにより形成され、第 2成形部と電線間の隙間を塞 ぐ水密能を有する。  (2) Further, in order to constitute the water tightness, the welding coating portion in the connector of the present invention is such that the coating covering the electric wire melts during the second injection molding of the second molding portion, and the molten coating is the electric wire and It is formed by being in close contact with the second molded part, and has a watertight ability to close the gap between the second molded part and the electric wire.
(3)さらに、上記水密能を構成するため、本発明のコネクタは、第 1成形部と第 2成形 部とが同一材質である。  (3) Further, in order to constitute the water tightness, in the connector according to the present invention, the first molded portion and the second molded portion are made of the same material.
(4)上記水密能を構成するため、本発明のコネクタの製造方法は、内部に電気コンタ 外が配置できるように第 1の射出成形により第 1成形部を形成する過程と、電気コン タクトに電気接続された電線の一部及びその被覆の一部並びに第 1成形部を覆うよう に第 2の射出成形により第 2成形部を形成する過程とを含んでおり、第 2の射出成形 時に発生する熱によって電線の被覆の一部が第 2成形部及び電線に溶着して溶着 被膜部を形成している。  (4) In order to configure the above water tightness, the connector manufacturing method of the present invention includes the process of forming the first molding part by the first injection molding so that the outside of the electrical contour can be disposed inside, and the electrical contact. A part of the electrically connected electric wire and part of the coating thereof and the process of forming the second molded part by the second injection molding so as to cover the first molded part, and occurs during the second injection molding. A part of the coating of the electric wire is welded to the second molding part and the electric wire by the heat to form a welded coating part.
発明の効果  The invention's effect
[0007] (1)請求項 1に係る発明は、第 1に、第 1射出成形時に形成された弾性突起と、第 2 射出成形時に形成された襟部との間で密封部を形成するための部材が配置される ので、本発明のコネクタと相手方コネクタとの嵌合時に生じる空隙を塞いで外部から の異物の混入や水分の侵入を阻止することができ、第 2に、第 2成形部を形成する第 2の射出成形時に発生する熱によって電線を覆う被覆が、第 2成形部に溶着して溶 着被膜部を形成するので、外部から水滴等の侵入が遮断される。 (2)請求項 2に係る発明は、溶着被膜部が第 2成形部の第 2の射出成形時に発生す る熱によって溶融し、該溶融した被覆が電線及び第 2成形部に密着することにより形 成され、第 2成形部と電線間の隙間を塞ぐ水密能を有するので、第 2成形部内にお レ、て気温差等により生じる露滴の発生を防止することができる。 [0007] (1) In the invention according to claim 1, firstly, a sealing portion is formed between the elastic protrusion formed at the time of the first injection molding and the collar portion formed at the time of the second injection molding. Therefore, the gap formed when the connector of the present invention is mated with the mating connector can be blocked to prevent the entry of foreign matter and the entry of moisture from the outside. Since the coating that covers the electric wires by the heat generated during the second injection molding that forms the film is welded to the second molded part to form the welded film part, intrusion of water droplets and the like from the outside is blocked. (2) In the invention according to claim 2, the weld coating part is melted by heat generated at the time of the second injection molding of the second molding part, and the melted coating adheres to the electric wire and the second molding part. Since it is formed and has a water tightness that closes the gap between the second molded part and the electric wire, it is possible to prevent the occurrence of dew droplets caused by temperature differences and the like in the second molded part.
(3)請求項 3に係る発明は、第 1成形部と第 2成形部とが同一材質であるので、第 2 成形部が第 1成形部の一部を覆う場合、双方が同材質で親和性がよいため、覆われ た部分の接着性に優れ、第 1成形部と第 2成形部との接着部において高い水密能を 構成すること力 Sできる。  (3) In the invention according to claim 3, since the first molded part and the second molded part are made of the same material, when the second molded part covers a part of the first molded part, both are made of the same material and are compatible with each other. Because of its good properties, it has excellent adhesion at the covered part, and can be configured to have a high water tightness at the adhesive part between the first molded part and the second molded part.
(4)請求項 4に係る発明は、本発明のコネクタの製造工程において第 2の射出成時 に発生する熱によって電線の被覆の一部が第 2成形部及び電線に密着して溶着被 膜部を形成するので、電線と第 2成形部間が密封されて水密能を構成することができ る。  (4) In the invention according to claim 4, in the manufacturing process of the connector according to the present invention, a part of the covering of the electric wire is brought into close contact with the second molding part and the electric wire by heat generated at the time of the second injection molding. Since the portion is formed, the space between the electric wire and the second molding portion can be sealed to form water tightness.
図面の簡単な説明  Brief Description of Drawings
[0008] [図 1]図 1 (a)及び図 1 (b)は、被覆された 2本の電線 4を具備した本発明によるコネク タ 1の全体形状を示した斜視図。  FIG. 1 (a) and FIG. 1 (b) are perspective views showing the overall shape of a connector 1 according to the present invention having two covered wires 4.
[図 2]図 2は、本発明によるコネクタ 1の全体的な外観を示す 4面図であり、 (a)ないし ( d)は、それぞれ上面図、下面図、側面図及び電線の揷入側と反対側からみた図。  [FIG. 2] FIG. 2 is a four-side view showing the overall appearance of the connector 1 according to the present invention. (A) to (d) are a top view, a bottom view, a side view, and a wire insertion side, respectively. Figure seen from the opposite side.
[図 3]図 3は、第 1成形部 10が形成された後に該第 1成形部 10の内部に電気コンタク ト 12が配置され、電気コンタクト 12に電線 4が接続された状態の斜視図。  [FIG. 3] FIG. 3 is a perspective view showing a state in which the electrical contact 12 is arranged inside the first molded part 10 after the first molded part 10 is formed and the electric wire 4 is connected to the electrical contact 12.
[図 4]図 4は、図 2 (b)において B_Bの軸 X方向に切断した断面図。  [FIG. 4] FIG. 4 is a cross-sectional view taken along the axis X direction of B_B in FIG. 2 (b).
符号の説明  Explanation of symbols
[0009] 1 · · ·コネクタ [0009] 1 · · · Connector
4· · '電線  4.
6 · · ·リング状弾性部材  6 · · · Ring-shaped elastic member
10—第1成形部  10—First molding part
11 · · ·突起  11
12 · · ·電気コンタクト  12 · · · Electrical contacts
13 · · ·電線接合部 17 · · ·電線把持部 13 · · · Wire joints 17
19 · · ·端子  19
20 · · ·第 2成形部  20 ... 2nd molding part
21 · · ·襟部  21 · · · Collar
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0010] 本発明の好ましい実施形態について実施例を挙げて図面を参照して説明する。な お、各図における同一構成要素には同一符号を付してあり、適宜その説明を省略す る場合がある。 [0010] Preferred embodiments of the present invention will be described with reference to the drawings by way of examples. In the drawings, the same components are denoted by the same reference numerals, and the description thereof may be omitted as appropriate.
[0011] 図 1 (a)及び図 1 (b)は、被覆された 2本の電線 4を具備した本発明によるコネクタ 1 の全体形状を示した斜視図である。  FIG. 1 (a) and FIG. 1 (b) are perspective views showing the overall shape of a connector 1 according to the present invention having two covered electric wires 4. FIG.
図 2は、本発明によるコネクタ 1の全体的な外観を示す 4面図であり、 (a)ないし (d) は、それぞれ上面図、下面図、側面図及び電線の挿入側と反対側からみた図である  FIG. 2 is a four-side view showing the overall appearance of the connector 1 according to the present invention. (A) to (d) are a top view, a bottom view, a side view, and a side opposite to the wire insertion side, respectively. It is a figure
[0012] 図 1 (a)、 (b)及び図 2 (a)〜(d)に図示されたコネクタについて説明する。 [0012] The connector illustrated in FIGS. 1 (a) and 1 (b) and FIGS. 2 (a) to (d) will be described.
本発明によるコネクタ 1は、第 1の射出成形により形成された第 1成形部 10と第 2の 射出成形により形成された第 2成形部 20とを個別に形成している。  In the connector 1 according to the present invention, a first molded part 10 formed by the first injection molding and a second molded part 20 formed by the second injection molding are individually formed.
第 1成形部 10は、略円柱状の外郭を有するように形成され、内部に電気コンタクト 1 2が配置され(図 3参照)、かつ、周上に 3つの弾性突起 11が設けられている。  The first molded part 10 is formed so as to have a substantially cylindrical outline, the electrical contact 12 is disposed inside (see FIG. 3), and three elastic protrusions 11 are provided on the circumference.
第 2成形部 20は、前方後円墳状に形成され、電気コンタクト 12、電気コンタクト 12と 接合された端子 19、端子 19に接合された電線 4、電線 4の被覆部及び第 1成形部の 一部を覆っている(図 3参照)。また、第 2成形部 20の円柱状部の縁部近傍には、第 1成形部 10の前記円柱状の外郭の周表面上において該周面に対して垂直方向に 突出して画定された襟部 21が形成されている。  The second molded part 20 is formed in the shape of a front rear circle, and includes an electrical contact 12, a terminal 19 joined to the electrical contact 12, an electric wire 4 joined to the terminal 19, the covering part of the electric wire 4, and the first molded part. It covers a part (see Figure 3). Further, in the vicinity of the edge of the cylindrical portion of the second molded portion 20, a collar portion defined by projecting in a direction perpendicular to the peripheral surface on the peripheral surface of the cylindrical outer shape of the first molded portion 10 is provided. 21 is formed.
前記襟部 21と前記弾性突起 11との間には前記第 1成形部 10の周上を覆って弾性 部材 6が配置されている。  An elastic member 6 is disposed between the collar portion 21 and the elastic protrusion 11 so as to cover the circumference of the first molding portion 10.
本発明によるコネクタ 1が相手方コネクタ(図示されていない)と嵌合する際は、弾性 突起 11が相手方コネクタの縁部等に係止することにより双方のコネクタが嵌合し、弾 性部材 6が双方のコネクタの嵌合部の隙間を密封するように位置することで、コネクタ 内への異物の混入及び水滴等の侵入を阻止し、電気系統の保護を確保している。 When the connector 1 according to the present invention is mated with a mating connector (not shown), the elastic projection 11 is engaged with the edge of the mating connector, so that both connectors are mated, and the elastic member 6 is The connector is positioned so as to seal the gap between the mating parts of both connectors. It prevents foreign matter from entering the inside and water droplets from entering, ensuring the protection of the electrical system.
[0013] 図 3は、第 1成形部 10が形成された後に該第 1成形部 10の内部に電気コンタクト 1 FIG. 3 shows an electrical contact 1 inside the first molded part 10 after the first molded part 10 is formed.
2が配置され、電気コンタクト 12に電線 4が接続された状態の斜視図であり、各構成 要素について以下説明する。 2 is a perspective view in a state in which 2 is arranged and the electric wire 4 is connected to the electrical contact 12, and each component will be described below.
第 1成形部 10の内部には 2個の電気コンタクト 12が配置されており、各電気コンタ タト 12の一端からは、電線把持部 17と電線接合部 13を具備した端子 19が第 1成形 部 10の軸 Xと直交方向に延びている。  Two electrical contacts 12 are arranged inside the first molded part 10, and from one end of each electrical contact 12, a terminal 19 having a wire gripping part 17 and a wire joint part 13 is provided in the first molded part 10. It extends in the direction perpendicular to the 10 axis X.
電線把持部 17は電線 4を覆った被覆を把持し、電線接合部 13は、被覆を剥離され 端末処理された電線 4の先端部近傍を圧接保持した状態で電線 4と電気コンタクト 1 The wire gripping portion 17 grips the sheath covering the wire 4, and the wire joint portion 13 is in electrical contact with the wire 4 in a state where the vicinity of the distal end portion of the wire 4 that has been stripped and terminated is pressed and held 1
2との電気接続を形成している。 Form electrical connection with 2.
[0014] 図 3の状態から、第 2の射出成形により第 2成形部 20を形成する工程を説明する。 A process of forming the second molded part 20 by the second injection molding from the state of FIG. 3 will be described.
第 2成形部の成形工程は、第 1成形部の弾性突起 11を有する一端と反対端の上 端近傍と電線 4とが、第 2射出成形時に第 2成形部 20を画定可能な铸型(図示され ていない)の内部に配置され、次いで、铸型内に熱成形可能であって溶融した樹脂 を流し込み、樹脂を冷却して铸型を取り外す。  In the molding process of the second molded part, a vertical mold (in which the second molded part 20 can be defined at the time of the second injection molding by the wire 4 and the vicinity of the upper end opposite to the one end having the elastic projection 11 of the first molded part). Next, the molten resin that can be thermoformed and poured into the mold is poured into the mold, the resin is cooled, and the mold is removed.
[0015] 次に、第 2の射出成形時における第 2成形部 20と電線 4を覆う被覆との関係を説明 する。 Next, the relationship between the second molded part 20 and the coating covering the electric wire 4 during the second injection molding will be described.
第 2の射出成形時には、第 2成形部 20の材質と電線 4の被覆の材質との融点の温 度差を利用して電線 4と第 2成形部 20間の空隙を塞いだ溶着被覆部が形成される。 第 2成形部 20の材質は、電線 4の、例えばビュル樹脂等からなる絶縁性被覆よりも 融点が高い成形樹脂が選択されており、第 2の射出成形時に、溶融した成形樹脂が 電線 4の被覆と接触すると、溶融した成形樹脂の温度の影響を受けて電線 4の被覆 も溶融する。そして、錡型内への成形樹脂の充填が完了し、成形樹脂が融点以下に 冷却するにつれて固化し第 2成形部 20が形成される。この際、溶融した電線 4の被 覆も該被覆の材質の融点以下に冷却されるにつれて第 2成形部 20の内部において 固化されることになるが、溶融した電線 4の被覆は電線 4の表面に溶着した状態で固 化されるため、電線 4と被覆間の空隙及び被覆と第 2成形部 20間の空隙は塞がれた 状態となる。これによつて、外部から水滴が侵入したり、気温差等によって露滴がコネ クタ内で発生したりしに《なるため、第 1成形部 10の内部に配置された電気コンタク ト 12に対して水密能を向上することができる。 At the time of the second injection molding, a welded coating portion that closes the gap between the wire 4 and the second molded portion 20 by utilizing the temperature difference between the melting points of the material of the second molded portion 20 and the material of the coating of the wire 4. It is formed. As the material of the second molding part 20, a molding resin having a melting point higher than that of the insulating coating made of, for example, a bull resin is selected for the electric wire 4, and the molten molding resin is used for the electric wire 4 during the second injection molding. When in contact with the coating, the coating of the wire 4 is also melted under the influence of the temperature of the molten molding resin. Then, the filling of the molding resin into the mold is completed, and the second molding part 20 is formed as the molding resin cools below the melting point. At this time, the cover of the melted electric wire 4 is also solidified inside the second molded part 20 as it is cooled below the melting point of the coating material. Therefore, the gap between the wire 4 and the coating and the gap between the coating and the second molded portion 20 are closed. This makes it possible for water droplets to enter from the outside, or for dew droplets to connect due to temperature differences. Since it is generated in the body, the water tightness can be improved with respect to the electrical contact 12 arranged inside the first molded part 10.
[0016] 図 4は、図 2 (b)において B— Bで軸 X方向に切断した断面図である。  FIG. 4 is a cross-sectional view taken along the axis X along the line BB in FIG. 2 (b).
[0017] 図 4において端子 19の一端に形成された電線把持部 17は、電線 4の被覆を把持し ているため、第 2射出成形時には少なくとも電線把持部 17が電線 4を把持した状態 で铸型内に配置されていれば、第 2成形部内で液密性を有する上記溶着被覆部を 形成することができ、本発明の目的は達成される。しかし、電線把持部 17が被覆を剥 離された電線 4を直接把持していても、第 2射出成形時に上記成形樹脂と電線 4の被 覆とが錡型内において接触可能な状態であれば、同様に本発明の目的は達成され ることは当業者には自明である。  In FIG. 4, the wire gripping portion 17 formed at one end of the terminal 19 grips the coating of the wire 4, so that at least the wire gripping portion 17 grips the wire 4 during the second injection molding. If it is arranged in the mold, the above-mentioned weld coating part having liquid-tightness can be formed in the second molding part, and the object of the present invention is achieved. However, even if the wire gripping portion 17 directly grips the wire 4 from which the coating has been peeled off, the molding resin and the covering of the wire 4 can be contacted in the vertical mold during the second injection molding. Similarly, it is obvious to those skilled in the art that the object of the present invention can be achieved.
[0018] 次に、第 1成形部 10と第 2成形部 20との接触面について説明する。  Next, the contact surface between the first molding part 10 and the second molding part 20 will be described.
第 2成形部 20は、第 1成形部 10の突起 11を有する一端と反対端近傍を、端子 19 及びそれに接続された電線 4も含めて覆っている。第 1成形部と第 2成形部は同じ材 質を使用して成形されており、第 1成形部 10と第 2成形部 20との境界面では同一材 質で接触面を形成しているため高い親和性が得られ、第 1成形部と第 2成形部は境 界面で強力に接着及び密着することができる。これにより、第 1成形部と第 2成形部が 不意に外れる可能性は少なくなり、かつ、第 1成形部と第 2成形部との境界面から水 滴等の侵入が阻止されるため、高い水密能を構成することができる。  The second molded part 20 covers the vicinity of the end opposite to the one end having the projection 11 of the first molded part 10 including the terminal 19 and the electric wire 4 connected thereto. The first molding part and the second molding part are molded using the same material, and the interface between the first molding part 10 and the second molding part 20 forms the contact surface with the same material. High affinity is obtained, and the first molded part and the second molded part can be strongly bonded and adhered at the interface. This reduces the possibility that the first molded part and the second molded part will come off unexpectedly, and prevents the entry of water droplets from the interface between the first molded part and the second molded part. A watertight ability can be configured.
[0019] 以上のように、第 1成形で電気コンタクト等の電気系統を内部に配置できるように射 出成形し、第 2成形で第 1成形を被覆射出成形 (オーバーモールド)して製造したコ ネクタにおける、第 2成形部内の水密性、第 1成形部と第 2成形部との境界面におけ る水密性及び本発明と相手方コネクタとの嵌合時の水密性ついて実施例をあげて説 明したが、本発明は上記実施形態に限定されるものではなぐ本発明の技術的思想 の範囲内で変形、変更することができる。  [0019] As described above, the first mold is formed by injection molding so that an electrical system such as an electrical contact can be disposed inside, and the second mold is manufactured by coating injection molding (overmolding). Examples of watertightness in the second molded part, watertightness at the interface between the first molded part and the second molded part, and watertightness when the present invention is mated with the mating connector will be explained with examples. As described above, the present invention is not limited to the above-described embodiment, and can be modified and changed within the scope of the technical idea of the present invention.

Claims

請求の範囲 The scope of the claims
[1] 第 1の射出成形により形成された第 1成形部と第 2の射出成形により形成された第 2 成形部とを個別に形成したコネクタであって、  [1] A connector in which a first molded part formed by first injection molding and a second molded part formed by second injection molding are individually formed,
第 1成形部には、内部に電気コンタクトが配置され、かつ、外表面上に弾性突起が 設けられ、  The first molded part is provided with an electrical contact inside, and provided with an elastic protrusion on the outer surface,
第 2成形部は、電気コンタクトと接合された電線の被覆部と、第 1成形部の一部とを 覆レ、、かつ、コネクタ本体の表面上に襟部が設けられ、  The second molded portion covers the covering portion of the electric wire joined to the electrical contact and a part of the first molded portion, and a collar portion is provided on the surface of the connector body.
前記襟部と前記弾性突起との間には密封部を形成するための部材が配置され、 電線を覆う被覆が、第 2成形部に溶着して溶着被膜部を形成するコネクタ。  A connector in which a member for forming a sealing portion is disposed between the collar portion and the elastic protrusion, and a coating covering the electric wire is welded to the second molding portion to form a weld coating portion.
[2] 前記溶着被膜部は、第 2成形部の第 2の射出成形時に電線を覆う被覆が溶融し、 該溶融した被覆が電線及び第 2成形部に密着することにより形成され、第 2成形部と 電線間の隙間を塞ぐ水密能を有する請求項 1記載のコネクタ。 [2] The weld coating portion is formed by melting the coating covering the electric wire during the second injection molding of the second molding portion, and bringing the molten coating into close contact with the electric wire and the second molding portion. 2. The connector according to claim 1, wherein the connector has a watertight ability to close a gap between the portion and the electric wire.
[3] 第 1成形部と第 2成形部が同一材質である請求項 1又は 2に記載のコネクタ。 [3] The connector according to claim 1 or 2, wherein the first molding part and the second molding part are made of the same material.
[4] 内部に電気コンタクトが配置できるように第 1の射出成形により第 1成形部を形成す る過程と、 [4] The process of forming the first molded part by the first injection molding so that the electrical contacts can be arranged inside,
電気コンタクトに電気接続された電線の一部及びその被覆の一部並びに第 1成形 部の一部を覆うように第 2の射出成形により第 2成形部を形成する過程と、を含んだコ ネクタの製造方法であって、  Forming a second molded part by second injection molding so as to cover a part of the electric wire electrically connected to the electrical contact and a part of the covering thereof and a part of the first molded part. A manufacturing method of
第 2の射出成形時に発生する熱によって電線の被覆の一部が第 2成形部及び電線 に溶着して溶着被膜部を形成することにより水密能を構成することを特徴とするコネ クタの製造方法。  A method for manufacturing a connector, characterized in that a part of the coating of the wire is welded to the second molded part and the wire by heat generated during the second injection molding to form a welded coating part, thereby forming a watertight capability. .
PCT/JP2005/023614 2004-12-24 2005-12-22 Connector for electric fuse igniter WO2006068229A1 (en)

Applications Claiming Priority (2)

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JP2004-372963 2004-12-24
JP2004372963A JP2006179377A (en) 2004-12-24 2004-12-24 Connector for electric fuse ignition device

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JP2008293822A (en) * 2007-05-25 2008-12-04 Japan Aviation Electronics Industry Ltd Watertight connector
WO2009053778A1 (en) * 2007-10-22 2009-04-30 Fci Electrical connector system
WO2022229156A1 (en) * 2021-04-27 2022-11-03 Amphenol-Tuchel Electronics Gmbh Plug connection for airbag deployment systems

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JP2013084429A (en) * 2011-10-07 2013-05-09 Auto Network Gijutsu Kenkyusho:Kk Connector

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JP2003127175A (en) * 2001-10-26 2003-05-08 Oshima Denki Seisakusho:Kk Injection-molded body and method for manufacturing it
JP2004193079A (en) * 2002-12-13 2004-07-08 Fci Asia Technology Pte Ltd Connector for electroexplosive ignition device

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JPH07308010A (en) * 1994-05-13 1995-11-21 Sumitomo Wiring Syst Ltd Wire connection part splice structure and its metal mold
JPH08315903A (en) * 1995-05-19 1996-11-29 Toyota Motor Corp Seal member and seal structure
JP2003127175A (en) * 2001-10-26 2003-05-08 Oshima Denki Seisakusho:Kk Injection-molded body and method for manufacturing it
JP2004193079A (en) * 2002-12-13 2004-07-08 Fci Asia Technology Pte Ltd Connector for electroexplosive ignition device

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JP2008293822A (en) * 2007-05-25 2008-12-04 Japan Aviation Electronics Industry Ltd Watertight connector
WO2009053778A1 (en) * 2007-10-22 2009-04-30 Fci Electrical connector system
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WO2022229156A1 (en) * 2021-04-27 2022-11-03 Amphenol-Tuchel Electronics Gmbh Plug connection for airbag deployment systems

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