WO2006068229A1 - 電気信管点火装置用コネクタ - Google Patents
電気信管点火装置用コネクタ Download PDFInfo
- 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
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connector
- molded
- molding
- coating
- molded part
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus 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
- H01R43/24—Assembling by moulding on contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing 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)
- Coupling Device And Connection With Printed Circuit (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004372963A JP2006179377A (ja) | 2004-12-24 | 2004-12-24 | 電気信管点火装置用コネクタ |
JP2004-372963 | 2004-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006068229A1 true WO2006068229A1 (ja) | 2006-06-29 |
Family
ID=36601826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/023614 WO2006068229A1 (ja) | 2004-12-24 | 2005-12-22 | 電気信管点火装置用コネクタ |
Country Status (2)
Country | Link |
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JP (1) | JP2006179377A (ja) |
WO (1) | WO2006068229A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008293822A (ja) * | 2007-05-25 | 2008-12-04 | Japan Aviation Electronics Industry Ltd | 防水コネクタ |
WO2009053778A1 (en) * | 2007-10-22 | 2009-04-30 | Fci | Electrical connector system |
WO2022229156A1 (de) * | 2021-04-27 | 2022-11-03 | Amphenol-Tuchel Electronics Gmbh | Steckverbindung für airbag-zündsysteme |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013084429A (ja) * | 2011-10-07 | 2013-05-09 | Auto Network Gijutsu Kenkyusho:Kk | コネクタ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07308010A (ja) * | 1994-05-13 | 1995-11-21 | Sumitomo Wiring Syst Ltd | 電線接続部のスプライス部構造及びその成形用金型 |
JPH08315903A (ja) * | 1995-05-19 | 1996-11-29 | Toyota Motor Corp | シール部材及びシール構造 |
JP2003127175A (ja) * | 2001-10-26 | 2003-05-08 | Oshima Denki Seisakusho:Kk | 射出成型体およびその製造方法 |
JP2004193079A (ja) * | 2002-12-13 | 2004-07-08 | Fci Asia Technology Pte Ltd | 電気信管点火装置用コネクタ |
-
2004
- 2004-12-24 JP JP2004372963A patent/JP2006179377A/ja active Pending
-
2005
- 2005-12-22 WO PCT/JP2005/023614 patent/WO2006068229A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07308010A (ja) * | 1994-05-13 | 1995-11-21 | Sumitomo Wiring Syst Ltd | 電線接続部のスプライス部構造及びその成形用金型 |
JPH08315903A (ja) * | 1995-05-19 | 1996-11-29 | Toyota Motor Corp | シール部材及びシール構造 |
JP2003127175A (ja) * | 2001-10-26 | 2003-05-08 | Oshima Denki Seisakusho:Kk | 射出成型体およびその製造方法 |
JP2004193079A (ja) * | 2002-12-13 | 2004-07-08 | Fci Asia Technology Pte Ltd | 電気信管点火装置用コネクタ |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008293822A (ja) * | 2007-05-25 | 2008-12-04 | Japan Aviation Electronics Industry Ltd | 防水コネクタ |
WO2009053778A1 (en) * | 2007-10-22 | 2009-04-30 | Fci | Electrical connector system |
US8047861B2 (en) | 2007-10-22 | 2011-11-01 | Fci | Electrical Connector System |
WO2022229156A1 (de) * | 2021-04-27 | 2022-11-03 | Amphenol-Tuchel Electronics Gmbh | Steckverbindung für airbag-zündsysteme |
Also Published As
Publication number | Publication date |
---|---|
JP2006179377A (ja) | 2006-07-06 |
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