JP2014056744A - Waterproof electric connector and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that great warpage occurs in longitudinal directions of electric connectors when the plurality of rows of electric connectors are integrally formed in a conventional waterproof electric connector.SOLUTION: A waterproof electric connector is configured by molding a plurality of electric connectors in such a manner as to integrally juxtapose them on one synthetic resin plate. In the waterproof electric connector 1, the plurality of electric connectors are each primarily molded, and the primarily-molded electric connectors are juxtaposed, secondarily molded by a connecting flange, and serially molded.

Description

  The present invention relates to a waterproof electrical connector used for electrical connection of, for example, a photovoltaic power generator and a method for manufacturing the same.

  Conventionally, since an interface connector used for a solar power generation device or the like is an environment in which a solar panel or a connector for connection is installed outdoors, a waterproof electrical connector is used. In forming the waterproof electrical connector, waterproofing is ensured by integrally molding a plurality of electrical connectors on a single resin plate.

  Incidentally, in the waterproof electrical connector, as described in Patent Document 1 as a conventional waterproofing method, a plurality of waterproof plugs having the same shape are brought into close contact with each other to form a watertight structure, thereby reducing the size of the prevention type electrical connector. Connectors are known. In addition, in the case where a plurality of interface electrical connectors are fixed to a single synthetic resin plate, a plurality of electrical connectors are installed in a mold and integrally molded.

Japanese Patent Laid-Open No. 06-176815

  However, in the conventional waterproof electrical connector, if it is formed with an electrical connector and a flat connecting plate provided with holes for mounting the electrical connector, packing such as rubber is required in the mounting hole portion, and the number of parts increases. The number of mounting steps increases, and it is difficult to maintain a high level of watertightness such as water leakage from the mounting holes. On the other hand, when multiple waterproof interface connectors such as two or three are formed with an integral insulator from the beginning, as shown in FIG. A large warp occurs. Thereby, there exists a subject that assembly property and waterproofness cannot be ensured. The waterproof electrical connector and the manufacturing method thereof according to the present invention have been proposed in order to solve such problems.

  The gist for achieving the object by solving the above-described problems of the waterproof electrical connector according to the present invention is that the waterproof electrical connector is formed by integrally arranging a plurality of electrical connectors on a single synthetic resin plate. In the connector, the plurality of electrical connectors are respectively primary molded, and the primary molded electrical connectors are juxtaposed and secondarily molded with a connecting flange, and are formed in series.

  The primary molded electrical connector includes a secondary molding mold and one or more thinned ribs protruding from the surface of a secondary molding portion.

  The gist for achieving the object by solving the above-described problem of the method for manufacturing a waterproof electrical connector according to the present invention is to form a plurality of electrical connectors integrally on a single synthetic resin plate. In the method of manufacturing a waterproof electrical connector, the plurality of electrical connectors are respectively primary molded, and at least a rib for forming a secondary molding and one or more thinned ribs are protruded in the secondary molding portion, and the primary The formed electrical connectors are arranged side by side and secondarily formed by a connecting flange to form a series.

  According to the waterproof electrical connector and the manufacturing method thereof of the present invention, a plurality of interface electrical connectors are first molded in advance, so that the connecting flange is secondarily molded, so that no warpage occurs, and the waterproof performance is enhanced. Can be maintained. By providing ribs in the primary molded electrical connector, the waterproof effect can be enhanced by strengthening the bond with the secondary molded synthetic resin. Furthermore, since the thickness of the rib is made thin enough to melt with the mold for secondary molding, the waterproof effect is highly maintained by melting the synthetic resins.

They are the perspective view (A) of the waterproof electrical connector 1 which concerns on this invention, and the perspective view (B) which shows the part in cross section. It is a top view of the state which arranged each electrical connector 1a-1c of the primary shaping | molding stage which concerns on the waterproof electrical connector 1 of the same invention side by side. It is a perspective view of the state which arranged each electrical connector 1a-1c of the primary shaping | molding stage which concerns on the waterproof electrical connector 1 of the same invention side by side. The waterproof electrical connector 1 according to the present invention includes a side view (A) in a state where the electrical connectors 1a to 1c in the primary molding stage are secondarily molded, and a side view (B) showing a part of the electrical connector 1a-1c in cross section is there. It is the top view (A) and front view (B) which concern on the waterproof electrical connector 1 of the same invention. It is the top view which shows the position of the gate of the metal mold | die in the secondary shaping | molding in the case of 2 series, when the waterproof electrical connector 1f which concerns on the other Example of this invention is planarly viewed. It is the waterproof electrical connector 1g which concerns on a prior art example, Comprising: It is a top view which shows the state which the warp generate | occur | produced in the longitudinal direction in the flange for connection.

  As shown in FIG. 1, the waterproof electrical connector and the manufacturing method thereof according to the present invention ensure waterproofness by overmolding when a plurality of series of electrical connectors 1a to 1c are integrally formed with an insulator. .

  As shown in FIG. 1, as a solar power generation apparatus interface connector, a plurality of electrical connectors 1 a to 1 c are integrally molded on a single synthetic resin plate (coupling flange) 1 e and formed into a waterproof type. In the electrical connector 1, as shown in FIGS. 2 to 3, the plurality of electrical connectors 1 are respectively primary molded.

  The primary molded electrical connectors 1a to 1c are arranged side by side and secondarily formed by a connecting flange 1e and formed in a series.

  As shown in FIGS. 2 to 3, the primary molded electrical connectors 1 a to 1 c have a secondary molding mold and a thin rib 1 d to be melted on the surface of a portion to be subjected to secondary molding. One or more projecting. In this embodiment, it is provided at two locations.

  Of the ribs 1d, one rib 1d is an annular protrusion, and the other rib 1d is formed by providing an annular recess on a part of the circumferential surface of the annular protrusion having a desired width.

  Thus, in a method for manufacturing a waterproof electrical connector in which a plurality of electrical connectors are integrally formed on a single synthetic resin plate and molded, the plurality of electrical connectors are respectively primary molded and secondary molded. One or more ribs which are thinned to melt with the mold for secondary molding are provided on the surface of the portion to be projected.

  After that, the primary molded electrical connector is placed side by side in a mold for secondary molding, and is subjected to secondary molding with the connecting flange 1e to form a series. Note that the synthetic resin in the primary molding and the secondary molding is the same resin material, or a material having a melting temperature close to that of the synthetic resin in the primary molding and the secondary molding.

  As a result, as shown in FIGS. 4 to 5, the connecting flange 1e has no warp in the longitudinal direction, and the waterproof performance is maintained high. In addition, since the synthetic resin in the primary molding and the secondary molding is the same, and the thickness of the rib is set to a thickness that melts with the mold of the secondary molding, the rib and the secondary molding mold are fused and watertight. The waterproof performance is maintained at a high level.

  As for the position of the gate of the mold in the secondary molding, as shown in FIG. 5, when the triple electrical connectors 1a to 1c are secondarily molded, two positions should be set close to the rib 1d. When the secondary electrical connectors 1b and 1c are secondarily formed as shown in FIG. 6 in the middle position 1h, a gate position is provided at one position 1h in the middle of the quantity electrical connectors 1b and 1c. is there.

  The waterproof electrical connector according to the present invention can be widely applied when a plurality of connectors and the like are formed in series with a connecting flange.

1 Waterproof electrical connector,
1a, 1b, 1c Primary molded electrical connector
1d ribs,
1e Flange for connection,
1f Waterproof electrical connector according to another embodiment,
1g Waterproof electrical connector according to a conventional example,
1h Mold gate position.

Claims (3)

In a waterproof electrical connector formed by integrally arranging a plurality of electrical connectors on a single synthetic resin plate,
Each of the plurality of electrical connectors is primarily molded,
A waterproof electrical connector, wherein the primary molded electrical connectors are arranged side by side and secondarily molded with a connecting flange to form a series of molded electrical connectors. The primary molded electrical connector has a secondary molding mold and one or more thinned ribs protruding in the secondary molding part,
The waterproof electrical connector according to claim 1. In the method of manufacturing a waterproof electrical connector formed by integrally arranging a plurality of electrical connectors on a single synthetic resin plate,
While primary forming each of the plurality of electrical connectors,
At least one rib for thinning to melt with the mold for secondary molding on the surface of the part to be secondary molded,
A method for manufacturing a waterproof electrical connector, wherein the primary molded electrical connectors are arranged side by side and secondarily molded with a connecting flange to form a series.

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