JP2007005153A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To regulate displacement of both sub-connectors at the time of insert-molding. <P>SOLUTION: This connector 1 consists of a block connector 2 and a secondary molded part 3. The block connector 2 consists of a first sub-connector 10 and a second sub-connector 20, and the second molded part 3 is formed by insert-molding with the block connector 2 used as a core. The first sub-connector 10 has a recessed part 13 with which the second sub-connector 10 can be engaged from its upper part. Since the fringe of the superposed surface 5 of both sub-connectors 10, 20 is covered with the inner wall 14 of the recessed part 13, it is highly unlikely that a molten resin enters, both sub-connectors 10, 20 are displaced in the direction for parting them with the superposed surface 5 as a boundary, and both sub-connectors 10, 20 are displaced in the plane direction along the superposed surface 5 by an injection pressure at the time of insert-molding. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connector.

As a general method for forming a connector by insert-molding a sub-connector having a plurality of terminals, one described in Patent Document 1 below is known.
Japanese Patent Laid-Open No. 7-114970

  By the way, even if the connector is molded by the above method, for example, when it is assumed that a plurality of types of terminal fittings having different shapes are incorporated, there is a concern that the mold structure becomes complicated or the setting to the mold is troublesome. Is done. Therefore, as a countermeasure, it is conceivable to set a core for each type of terminal fitting and to unite them prior to secondary molding. However, even if such a method is taken, there are still the following problems. For example, the problem will be described with reference to FIG. That is, the connector 101 is formed by individually forming the sub-connectors 102 and 103 having terminals having different shapes, and then inserting the sub-connector 102 into the sub-connector 103 and insert-molding the sub-connector 102 as a core. However, in the connector 101, when the injection pressure of the molten resin injected from the gate into the mold at the time of insert molding acts directly on the core, the sub connector 102 is transverse to the sub connector 103 (X- in the figure). X direction) slips in the position, or the molten resin enters the overlapping surface 104 of both the sub-connectors 102 and 103, and separates both the sub-connectors 102 and 103 from the overlapping surface 104 (YY in the figure). There was a problem such as displacement in the direction).

  The present invention has been completed on the basis of the above circumstances, and both sub-connectors are realized by injection pressure at the time of insert molding while simplifying the mold structure and improving the work efficiency of setting to the mold. The purpose is to regulate the displacement between the two.

  As means for achieving the above object, the invention of claim 1 is characterized in that a plurality of sub-connectors are overlapped to form a block connector, and the outer surface of the core is formed by insert molding using the block connector as a core. In the connector in which the secondary molded portion is formed, a positional deviation regulating means is interposed between the overlapping sub-connectors, and the positional deviation regulating means covers both the sub-connectors by covering the gap between the overlapping surfaces. A closing portion that restricts displacement in a direction in which the overlapping surfaces are separated from each other and a locking portion between the two sub-connectors and restricts displacement in a direction along the overlapping surfaces of the two sub-connectors. It has a feature in that it is configured to include an engaging portion.

  According to a second aspect of the present invention, in the first aspect of the present invention, the terminal arrangement surface from which the terminal fitting protrudes is formed on both the sub-connectors, and one of the two sub-connectors covers the entire circumference. By forming a recess having an inner wall and allowing the other sub-connector to be fitted substantially flush with the other sub-connector, the misregistration restricting means is configured, and in the fitted state of both the sub-connectors, The terminal arrangement surface of said one subconnector is arranged so that the terminal arrangement surface of said other subconnector exposed from said one subconnector may be surrounded.

<Invention of Claim 1>
According to the first aspect of the present invention, since the closing portion that covers the gap between the overlapping surfaces is provided, it is possible to regulate the displacement of the molten resin from the gap between the overlapping surfaces of both the sub-connectors and the separation in the direction of separating from the overlapping surface. Since the locking portion for locking the two sub-connectors is provided, the position of the molten resin is displaced in the direction along the overlapping surface of the two sub-connectors due to the injection pressure when the molten resin acts directly on the sub-connector during insert molding. It can be regulated.

<Invention of Claim 2>
According to the invention of claim 2, the inner wall of the recess surrounding the other sub-connector from all sides prevents the displacement in the plane direction along the overlapping surfaces of both the sub-connectors and the molten resin is formed on the overlapping surfaces of both the sub-connectors. It is prevented from being displaced in the direction of entering and separating from the polymerization surface. That is, since the concave portion has the function of the closing portion and the locking portion, and these are integrated to form a single structure, the structure can be simplified as compared with the case where they are formed individually.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. The connector 1 in the first embodiment includes a block connector 2 and a secondary molding portion 3. The block connector 2 includes a first sub-connector 10 and a second sub-connector 20, and the secondary molding portion 3 is formed on the outer surface of the block connector 2 by insert molding using the block connector 2 as a core. In the following description, the longitudinal direction is based on the left-right direction in FIG. 1, the short side direction is based on the direction orthogonal to the paper surface in FIG. 1, and the up-down direction is the up-down direction in FIG. Is the upper side.

  The second sub-connector 20 is made of resin, and has a substantially block-shaped second housing 21 as shown in FIG. Inside the second housing 21, four second male terminal fittings 22 shown in the figure are arranged in the longitudinal direction by insert molding (see FIG. 5), and are arranged at the same pitch in the lateral direction. Further, both ends in the longitudinal direction of the second male terminal fitting 22 are bent upward by approximately 90 ° to form a substantially U-shape, and protrude upward from the upper surface of the second housing 21. The upper surface of the second housing 21 is a second terminal arrangement surface 23.

  The first sub-connector 10 is made of resin and has a first housing 11 as shown in FIG. 4, and a concave portion 13 into which the second sub-housing 10 can be fitted from above is formed in a rectangular shape on the upper surface. Is formed. In a state where both the sub-connectors 10 and 20 are fitted, the outer surface of the second sub-connector 20 and the inner surface of the recess 13 are almost in close contact. Inside the first housing 11, four first male terminal fittings 12 shown in the figure are arranged in the longitudinal direction by insert molding (see FIG. 5), and are arranged at the same pitch in the short direction. Further, both ends in the longitudinal direction of the first male terminal fitting 12 are bent upward by approximately 90 ° to form a substantially U-shape, and protrude upward from the upper surface of the first housing 11. The upper surface of the first housing 11 is a first terminal arrangement surface 15.

  In the first housing 11, the inner wall 14 (corresponding to a closing portion and a locking portion in the present invention) 14 of the recess 13 has the same height as the second housing 21. Therefore, in the normal fitting state of both the sub-connectors 10 and 20, as shown in FIGS. 5 and 6, both the terminal disposition surfaces 15 and 23 of both the sub-connectors 10 and 20 are flush with each other. Further, the tip of the first male terminal fitting 12 and the tip of the second male terminal fitting 22 are set to have the same protruding height from the both terminal arrangement surfaces 15 and 23, and the protruding portions of both male terminal fittings 12 and 22 are They are aligned on the same straight line in the longitudinal direction.

  The secondary molded portion 3 is integrally formed so as to surround the block connector 2 from the outside, and has a hood portion 4 that exposes both terminal arrangement surfaces 15 and 23 of both subconnectors 10 and 20. A mating connector (not shown) can be fitted here. The back wall of the hood portion 4 is positioned in the middle of the outer surface of the block connector 2.

This embodiment has the structure as described above, and the operation thereof will be described subsequently.
First, the manufacturing procedure will be described. The block connector 2 is formed by fitting the second sub connector 20 into the recess 13 of the first sub connector 10. Next, when the block connector 2 is set as a core in a molding die (not shown) and closed, a molding space (not shown) is formed between the block connector 2 and the molding die. The When molten resin is injected into the molding space, the secondary molded portion 3 is formed. At this time, since the first sub-connector 10 and the second sub-connector 20 are fitted and the overlapping surface 5 is not exposed, the molten resin enters from the interval between the overlapping surfaces 5, and both the sub-connectors 10, 20 However, there is no risk of displacement in the direction of separation with the overlapping surface 5 as a boundary. Further, there is no possibility that both the sub-connectors 10 and 20 are displaced along the plane direction of the overlapping surface 5 due to the injection pressure at the time of secondary molding.

  As described above, in the present embodiment, when secondary molding is performed using the block connector 2 as a core, the interval between the overlapping surfaces 5 of the first sub-connector 10 and the second sub-connector 20 is determined by the inner wall 14 of the recess 13. Since it is covered, there is no possibility that the molten resin enters and the sub-connectors 10 and 20 are displaced in the direction of separating from the overlapping surface 5 as a boundary. As a result, the tip position of the first male terminal fitting 12 is retracted from the tip position of the second male terminal fitting 22, and the first male terminal fitting 12 and the mating connector (not shown) are properly fitted. Contact failure can be avoided. Further, since the four sides are surrounded by the inner wall 14, there is no possibility that both the sub-connectors 10 and 20 are displaced along the plane direction of the overlapping surface 5 due to the injection pressure at the time of insert molding. Misalignment can be avoided. In this embodiment, since the sub-connector is formed for each male terminal fitting having a different shape, the sub-connector molding is formed as compared with the case where the sub-connector having a plurality of types of male terminal fittings is formed at a time. This makes it possible to simplify the mold structure for use, and makes it easier to set the male terminal fitting to the mold. In this embodiment, the concave portion 13 functions as a closing portion that closes the overlapping surface 5 of the first and second sub-connectors 10 and 20, and the positional deviation in the plane direction between both the sub-connectors 10 and 20. Although the function as the locking portion to be controlled is exhibited, both these functions may be exhibited by separate members.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.

  (1) In the first embodiment, the closing portion and the locking portion are formed integrally with the first sub-connector, but may be provided as separate members as long as the displacement of both sub-connectors can be regulated. For example, by providing a locking projection on one surface of the overlapping surfaces of both sub-connectors and providing a locking recess on the other surface that can be fitted with this locking projection, a plane along the overlapping surface Prevents misalignment in the direction, and covers the periphery of the polymerization surface with a tape, etc. The deviation can be regulated.

  (2) In the first embodiment, an example in which the sub-connectors are overlapped in two stages is illustrated, but the number of overlap stages is not limited to two, and even if the sub-connectors are overlapped in three or more stages Applicable.

Sectional drawing in the longitudinal direction of the connector in Embodiment 1 Cross-sectional view in the short direction The perspective view which shows the normal fitting state of both subconnectors The perspective view which shows the state before fitting of both subconnectors (A) Side view showing the state before fitting in the longitudinal direction of both sub-connectors (b) Side view showing the normal fitting state (A) Side view showing a state before fitting in the short direction of both sub-connectors (b) Side view showing the normal fitting state Perspective view of a conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Connector 2 ... Block connector 5 ... Overlapping surface 10 ... 1st subconnector 12 ... 1st male terminal metal fitting 13 ... Recessed part 14 ... Inner wall (closing part, latching | locking part)
DESCRIPTION OF SYMBOLS 15 ... 1st terminal arrangement surface 20 ... 2nd subconnector 22 ... 2nd male terminal metal fitting 23 ... 2nd terminal arrangement surface

Claims (2)

By forming a block connector by superimposing a plurality of sub-connectors, and insert-molding the block connector as a core, a connector in which a secondary molded portion is formed on the outer surface of the core,
Between the overlapping sub-connectors, a positional deviation regulating means is interposed, and this positional deviation regulating means is
By covering the periphery of the overlapping surface, a closing portion that restricts displacement in the direction of separating both the sub-connectors from the overlapping surface,
A connector comprising: a locking portion that locks between the two sub-connectors and restricts displacement in a direction along the overlapping surface of the two sub-connectors. Both sub-connectors are formed with terminal mounting surfaces from which the terminal fittings protrude,
One of the two sub-connectors is formed with a recess having an inner wall over the entire circumference, and the other sub-connector can be fitted almost flush with the other sub-connector, thereby restricting the displacement. And the terminal arrangement surface of the one sub-connector so as to surround the terminal arrangement surface of the other-side sub-connector exposed from the one sub-connector in the fitted state of both the sub-connectors The connector according to claim 1, wherein the connector is arranged.

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