JP5745921B2 - Insert molded connector - Google Patents

Description

  The present invention relates to an insert-molded connector in which a plurality of terminal fittings positioned by a terminal holder are insert-molded together with the terminal holder to form a resin housing in which the plurality of terminal fittings are accommodated and held at a predetermined arrangement pitch.

FIG. 18 shows a conventional example of an insert-molded connector.
This insert-molded connector 100 is disclosed in Patent Document 1 below.
The insert-molded connector 100 includes a plurality of first terminal fittings 110, a plurality of second terminal fittings 120, a terminal holder 130 made of a non-conductive material, and a resin housing 140.

  The 1st terminal metal fitting 110 and the 2nd terminal metal fitting 120 shape | molded the rod-shaped board | plate material in the L shape, and both ends are the tongue-shaped male terminal parts fitted with the female terminal of a mating connector. .

  In FIG. 18, reference numerals 111 and 112 are male terminal portions at both ends of the first terminal fitting 110, and reference numerals 121 and 122 are male terminal portions at both ends of the second terminal fitting 120.

  The terminal holder 130 is a member that positions the plurality of terminal fittings 110 and 120 at a predetermined arrangement pitch.

  The resin housing 140 is formed in a state in which the plurality of terminal fittings 110, 120 are accommodated and held at a predetermined arrangement pitch by insert molding the plurality of terminal fittings 110, 120 positioned by the terminal holder 130 together with the terminal holder 130. The

  In the insert molding connector 100 as described above, the terminal fittings 110 and 120 are securely arranged in the predetermined arrangement in the terminal holder 130 so that the terminal fittings 110 and 120 are not displaced from the predetermined arrangement position at the time of insert molding. A means for positioning on the pitch is required.

  The terminal holder 130 in Patent Document 1 has a thick plate shape, and a plurality of grooves 131 into which the first terminal fitting 110 is fitted as a means for positioning the first terminal fitting 110 at a predetermined pitch on the upper surface. ing. A plurality of grooves 133 similar to the grooves 131 are provided on the lower surface of the terminal holder 130 as means for positioning the second terminal fitting 120 at a predetermined pitch. Further, a locking projection 134 is projected from the bottom surface of each of the grooves 131 and 133.

  The locking protrusions 134 on the bottom surfaces of the respective grooves 131 and 133 are fitted into the positioning holes 113 and 123 formed in the terminal fittings 110 and 120 fitted in these grooves, so that the respective terminal fittings 110 and 120 are respectively connected. Fix in the groove.

  In each of the terminal fittings 110 and 120, the holder fixing portions 115 and 125 in which the positioning holes 113 and 123 are equipped have lower bending strength, buckling strength, and the like than the male terminal portions 111 and 121 due to the provision of the positioning holes 113 and 123. In order to avoid this, it is a widened portion having a larger width than the male terminal portions 111 and 121.

Japanese Patent No. 3509444

  However, the insert-molded connector 100 of Patent Document 1 has a structure in which the holder fixing portions 115 and 125 equipped on the terminal fittings 110 and 120 are widened. Therefore, the arrangement pitch between the terminal fittings is narrowed to reduce the size and weight of the connector. There was a problem that it was difficult to plan.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and by reducing the width of the terminal fittings, the arrangement pitch between the terminal fittings can be reduced, thereby reducing the size and weight of the connector. It is to provide an insert molded connector.

The above-described object of the present invention is achieved by the following configuration.
(1) a terminal holder made of a non-conductive material for positioning a plurality of terminal fittings at a predetermined arrangement pitch;
A resin housing that houses and holds the plurality of terminal fittings at a predetermined arrangement pitch by insert molding a plurality of terminal fittings positioned by the terminal holder together with the terminal holder,
An insert-molded connector comprising:
The terminal fitting has a substantially crank shape that is bent so that both ends of a straight rod-like body extend substantially at right angles to the intermediate portion and both ends extend opposite to each other,
The terminal holder is a means for positioning the terminal fitting at a predetermined arrangement pitch.
A mounting surface comprising a horizontal mounting surface and a vertical mounting surface for mounting the terminal fitting;
Is erected on the horizontal mounting surface and said vertical mounting surface so as to contact the outer surface of the horizontal mounting surface and the terminal fitting mounted on the vertical mounting surface, each of said terminal fittings An elastic protrusion that restricts movement in the direction along the mounting surface;
Said projecting from the front end of the elastic protruding pieces so as to cover on a horizontal mounting surface and the terminal fittings on the vertical mounting surface, restricting the movement in the direction lifted off the mounting surface of the terminal fitting Holding claw part to perform,
An insert-molded connector comprising:

(2) When the terminal fitting is placed on the mounting surface on the outer surface opposite to the surface holding the terminal fitting, the holding claw portion is brought into contact with the terminal fitting by the contact with the terminal fitting. Provided with an inclined surface that applies an urging force in the direction of retreating to the outside of the terminal fitting to the holding claw portion,
The insert molding connector according to (1), wherein the inclined surface is formed to extend to an outside of a range where the pressing claw portion covers the terminal fitting.

  According to the configuration of (1) above, the means mounted on the terminal holder for positioning the plurality of terminal fittings at a predetermined arrangement pitch includes a placement surface on which the terminal fittings are placed, and a standing surface on the placement surface. An elastic protrusion that restricts movement in the direction along the mounting surface of the terminal fitting, and a presser claw portion that protrudes from the tip of the elastic protrusion and restricts movement in the direction of lifting from the mounting surface of the terminal fitting; It is the structure provided with. In other words, the positioning means provided in the terminal holder is configured to position and fix the terminal fitting by pressing the outer peripheral surface of the terminal fitting, and positioning that causes a reduction in strength of the terminal fitting at the holder fixing portion of the terminal fitting. There is no need to equip holes.

  Therefore, the terminal fixture is firmly fixed to the terminal holder and the arrangement pitch of the plurality of terminal fixtures is maintained with high accuracy without widening the holder fixing part like the conventional terminal fixture equipped with positioning holes. Insert molding can be performed.

  Therefore, by reducing the width dimension of the terminal fittings, the arrangement pitch between the terminal fittings can be reduced, and the connector can be reduced in size and weight.

  According to the configuration of (2) above, since the inclined surface provided on the outer surface of the presser claw portion is formed to extend to the outside of the range covering the terminal metal fitting, the terminal metal fitting is placed on the mounting surface of the terminal holder. Even when the terminal fitting is slightly displaced from the original placement position during the mounting operation, the inclined surface with which the terminal fitting abuts functions as a guide surface for correcting the terminal fitting to the original placement position. Therefore, the operation of attaching the terminal fitting to the terminal holder becomes easy, and the assemblability can be improved.

  According to the insert-molded connector according to the present invention, the positioning means provided in the terminal holder for fixing the terminal fittings to a predetermined arrangement pitch is configured to position and fix the terminal fittings by pressing the outer peripheral surface of the terminal fittings. Therefore, it is not necessary to equip the holder fixing portion of the terminal fitting with a positioning hole that causes a reduction in strength of the terminal fitting.

  Therefore, the terminal fixture is firmly fixed to the terminal holder and the arrangement pitch of the plurality of terminal fixtures is maintained with high accuracy without widening the holder fixing part like the conventional terminal fixture equipped with positioning holes. Insert molding can be performed.

  Therefore, by reducing the width dimension of the terminal fittings, the arrangement pitch between the terminal fittings can be reduced, and the connector can be reduced in size and weight.

1 is a perspective view of an embodiment of an insert molded connector according to the present invention. It is a longitudinal cross-sectional view of the insert-molded connector shown in FIG. It is a perspective view of the terminal holder shown in FIG. It is a front view (A arrow line view of FIG. 3) of the terminal holder shown in FIG. FIG. 4 is a top view of the terminal holder shown in FIG. FIG. 3 is a side view of the terminal holder shown in FIG. 2 (a view taken along arrow C in FIG. 4). FIG. 4 is a perspective view of a holder assembly in which a plurality of terminal fittings are mounted on the terminal holder shown in FIG. 3. It is the perspective view which looked at the holder assembly shown in FIG. 7 from the arrow D side of FIG. It is a front view of the holder assembly shown in FIG. FIG. 8 is a side view of the holder assembly shown in FIG. 7. It is EE sectional drawing of FIG. It is an enlarged view of the F section of FIG. FIG. 8 is a top view of the holder assembly shown in FIG. 7. It is GG sectional drawing of FIG. It is HH sectional drawing of FIG. It is the I section enlarged view of FIG. It is the J section enlarged view of FIG. It is a longitudinal cross-sectional view of the conventional insert molding connector. It is a disassembled perspective view of the some terminal metal fitting and terminal holder which were shown in FIG. FIG. 19 is a perspective view of a partially assembled state in which the plurality of terminal fittings illustrated in FIG. 18 are positioned on the terminal holder.

  Hereinafter, a preferred embodiment of an insert-molded connector according to the present invention will be described in detail with reference to the drawings.

  1 to 17 show an embodiment of an insert-molded connector according to the present invention. FIG. 1 is a perspective view of the insert-molded connector of the embodiment, and FIG. 2 is a longitudinal section of the insert-molded connector shown in FIG. 3 is a perspective view of the terminal holder shown in FIG. 2, FIG. 4 is a front view of the terminal holder shown in FIG. 2 (as viewed from the direction of arrow A in FIG. 3), and FIG. 5 is a terminal holder shown in FIG. FIG. 6 is a side view of the terminal holder shown in FIG. 2 (C view of FIG. 4), and FIG. 7 is a terminal holder shown in FIG. FIG. 8 is a perspective view of the holder assembly shown in FIG. 7 viewed from the arrow D side in FIG. 7, and FIG. 9 is a front view of the holder assembly shown in FIG. 10 is a side view of the holder assembly shown in FIG. 7, FIG. 11 is a cross-sectional view taken along line E-E in FIG. 9, and FIG. 12 is an enlarged view of a portion F in FIG. 3 is a top view of the holder assembly shown in FIG. 7, FIG. 14 is a sectional view taken along the line GG in FIG. 9, FIG. 15 is a sectional view taken along the line H-H in FIG. 17 is an enlarged view of a portion J in FIG.

  The insert molded connector 1 of this embodiment includes a plurality of first terminal fittings 10, a plurality of second terminal fittings 20, a terminal holder 30 made of a non-conductive material, and a resin housing 40.

  The first terminal fitting 10 and the second terminal fitting 20 are substantially cranks that are bent so that both ends of a straight rod-like body extend substantially at right angles to the intermediate portion and both ends extend opposite to each other. Shaped terminal. Both ends of these terminal fittings 10 and 20 are male terminal portions that fit into female terminals of the mating connector.

  2, 7, and 8, reference numerals 11 and 12 are male terminal portions at both ends of the first terminal fitting 10, and reference numerals 21 and 22 are male terminal portions at both ends of the second terminal fitting 20.

  The terminal holder 30 is a member that positions the plurality of terminal fittings 10 and 20 at a predetermined arrangement pitch. Details of the terminal holder 30 will be described later.

  The resin housing 40 is formed in a state in which the plurality of terminal fittings 10 and 20 are accommodated and held at a predetermined arrangement pitch by insert molding the plurality of terminal fittings 10 and 20 positioned by the terminal holder 30 together with the terminal holder 30. The

  As shown in FIG. 2, the resin housing 40 of this embodiment includes a first connector fitting portion 41, a second connector fitting portion 42, a housing fitting portion 43, a flange portion 44, And a bolted cylindrical portion 45.

  The first connector fitting portion 41 has male terminal portions 11 and 21 at one end of the terminal fittings 10 and 20 protruding therein, and a first mating connector connected to these male terminal portions 11 and 21 is provided. Mating and connecting.

  The second connector fitting portion 42 has a male terminal portion 12, 22 at the other end of the terminal fitting 10, 20 projecting inside thereof, and a second mating connector connected to the male terminal portion 12, 22. Are fitted and connected.

  The housing fitting portion 43 is a cylindrical portion that is fitted and mounted in a mounting hole (not shown) of the housing in which the second mating connector connected to the second connector fitting portion 42 is built. . As shown in FIG. 2, a seal groove 43 a is provided around the outer peripheral surface of the housing fitting portion 43. A seal ring 51 is attached to the seal groove 43a to seal the fitting portion with the housing.

  The flange portion 44 is a bowl-shaped portion formed on the upper portion of the housing fitting portion 43. When the housing fitting portion 43 is fitted and attached to the mounting hole of the housing, the flange portion 44 is formed on the peripheral portion of the mounting hole. Abuts to achieve positioning.

  The bolted tubular portion 45 is a tubular portion through which a bolt is inserted. The bolted tubular portion 45 is used when the insert-molded connector 1 is bolted to a housing in which the housing fitting portion 43 is fitted and mounted. The bolting tubular portion 45 is formed with high rigidity so that the fastening force at the time of bolting does not apply an excessive load to the flange portion 44.

  Next, the structure in which the terminal holder 30 of this embodiment positions the plurality of terminal fittings 10 and 20 will be described in detail.

  The terminal holder 30 of the present embodiment includes mounting surfaces 60, 61, elastic projecting pieces 70, 71, and a pressing claw portion 81 as means for positioning the terminal fittings 10, 20 at a predetermined arrangement pitch.

  The placement surface 60 is a surface on which the first terminal fitting 10 is placed. In the case of the present embodiment, as shown in FIGS. 3 and 5, the placement surface 60 includes a horizontal placement surface 60 a and a vertical placement surface 60 b.

  The horizontal placement surface 60a is a surface on which the male terminal portion 11 of the first terminal fitting 10 is placed. In the case of the present embodiment, the horizontal placement surface 60 a is a part of the upper surface of the upper wall 31 formed horizontally extending above the terminal holder 30. The vertical placement surface 60 b is a surface on which the terminal intermediate portion communicating between the male terminal portion 11 and the male terminal portion 12 of the first terminal fitting 10 is placed. In the present embodiment, the vertical placement surface 60 b is a part of the back surface of the vertical wall 32 that extends vertically downward from the upper wall 31 of the terminal holder 30.

  The placement surface 61 is a surface on which the second terminal fitting 20 is placed. In the case of the present embodiment, as shown in FIGS. 4 and 6, the placement surface 61 includes a horizontal placement surface 61a and a vertical placement surface 61b.

  The horizontal placement surface 61a is a surface on which the male terminal portion 21 of the second terminal fitting 20 is placed. In the case of this embodiment, the horizontal placement surface 61 a is a part of the lower surface of the upper wall 31 of the terminal holder 30. The vertical placement surface 61 b is a surface on which the terminal intermediate portion communicating between the male terminal portion 21 and the male terminal portion 22 of the second terminal fitting 20 is placed. In the present embodiment, the vertical placement surface 61 b is a part of the front surface of the vertical wall 32 of the terminal holder 30.

  The elastic protruding piece 70 is erected on the mounting surface 60 so as to abut on the outer surface of the first terminal fitting 10 placed on the placement surface 60, and the placement surface 60 of the first terminal fitting 10. The movement in the direction along is controlled.

  In the case of this embodiment, as shown in FIG. 5, as the elastic protrusions 70, the first elastic protrusions 70 a and the second elastic protrusions 70 b erected on the horizontal mounting surface 60 a, and the vertical mounting surface And a third elastic protruding piece 70c erected on 60b. Each of these elastic protrusions 70a, 70b, 70c is mounted on the mounting surface 61 in a rib shape or a protrusion shape.

  The elastic protrusion 71 is erected on the placement surface 61 so as to abut on the outer surface of the second terminal fitting 20 placed on the placement surface 61, and the placement surface 61 of the second terminal fitting 20. The movement in the direction along is controlled.

  In the case of this embodiment, as shown in FIG. 4, as the elastic protrusion 71, a fourth elastic protrusion 71a standing on the horizontal placement surface 61a and a fifth standing on the vertical placement surface 61b. Elastic protrusion 71b. Each of the elastic protrusions 71a and 71b is equipped with a rib shape or a protrusion shape on the mounting surface.

  As shown in FIGS. 6 and 10 to 12, the pressing claw portion 81 has elastic protruding pieces 70 a, so as to cover the male terminal portions 11, 21 of the terminal fittings 10, 20 on the horizontal placement surfaces 60 a, 61 a. It protrudes from the tip of 71a. These holding claws 81 restrict the movement of the terminal fittings 10 and 20 in the direction of lifting from the horizontal placement surfaces 60a and 61a (the directions of arrows Y1 and Y2 in FIG. 10).

  Furthermore, in the case of this embodiment, as shown in FIG. 12, the pressing claw portion 81 includes an inclined surface 81b on the outer surface opposite to the surface 81a for pressing the terminal fittings 10 and 20. The inclined surface 81b is configured so that when the terminal fittings 10 and 20 are placed on the placement surfaces 60 and 61, the holding claw 81 is brought out of the terminal fittings 10 and 20 by contact with the terminal fittings 10 and 20. The urging force in the retracting direction (in the direction of arrow X1 in FIG. 12) is applied to the pressing claw portion 81.

  In the case of this embodiment, the inclined surface 81 b is formed to extend to the outside of the range where the pressing claw 81 covers the terminal fittings 10 and 20.

  Here, the range where the pressing claw 81 covers the terminal fittings 10 and 20 is the dimension w1 (see FIG. 12) that the surface 81a pressed by the pressing claw 81 actually covers the male terminal units 11 and 21. As shown in FIG. 12, the inclined surface 81 b is set to a dimension w <b> 2 larger than w <b> 1, thereby extending to the outside of the range where the pressing claw portion 81 covers the terminal fittings 10, 20.

  In the insert molded connector 1 of the embodiment described above, the positioning means provided in the terminal holder 30 for positioning the plurality of terminal fittings 10 and 20 at a predetermined arrangement pitch places the terminal fittings 10 and 20. Mounting surfaces 60, 61, elastic protrusions 70, 71 standing on the mounting surfaces 60, 61 and restricting movement of the terminal fittings 10, 20 along the mounting surfaces 60, 61, and elastic protrusions A pressing claw portion 81 that protrudes from the tips of the pieces 70 and 71 and restricts the movement of the terminal fittings 10 and 20 in the direction of lifting from the mounting surfaces 60 and 61 is provided.

  In other words, the positioning means provided in the terminal holder 30 is configured to position and fix the terminal fittings 10 and 20 by pressing the outer peripheral surfaces of the terminal fittings 10 and 20. In addition, it is not necessary to equip the positioning holes that cause the strength reduction of the terminal fittings 10 and 20.

  Therefore, the terminal fittings 10 and 20 are firmly fixed to the terminal holder 30 without widening the holder fixing portion as in the conventional terminal fitting equipped with the positioning hole, and the arrangement of the plurality of terminal fittings 10 and 20 is achieved. Insert molding can be performed while maintaining the pitch with high accuracy.

  Therefore, by reducing the width dimension of the terminal fittings 10 and 20, the arrangement pitch between the terminal fittings 10 and 20 can be reduced, so that the connector can be reduced in size and weight.

  Further, in the insert-molded connector 1 of the embodiment described above, the inclined surface 81b provided on the outer surface of the presser claw 81 is formed to extend to the outside of the range covering the terminal fittings 10 and 20. Even when the terminal fittings 10 and 20 are slightly displaced from the original placement positions during the operation of mounting the terminal fittings 10 and 20 on the placement surfaces 60 and 61 of the terminal holder 30, the terminal fittings 10 and 20. The inclined surface 81b on which the terminal abuts functions as a guide surface for correcting the terminal fittings 10 and 20 to the original placement position.

  Therefore, the operation of mounting the terminal fittings 10 and 20 on the terminal holder 30 is facilitated, and the assemblability can be improved.

  Note that the insert-molded connector of the present invention is not limited to the above-described embodiment, and appropriate modifications and improvements can be made.

  For example, in the above embodiment, the presser claw portion 81 is provided only on the first elastic protrusion piece 70a and the fourth elastic protrusion piece 71a provided upright on the horizontal placement surfaces 60a and 61a. The elastic protrusions 70b, 70c and 71b may be equipped.

DESCRIPTION OF SYMBOLS 1 Insert molding connector 10,20 Terminal metal fitting 30 Terminal holder 40 Resin housing 60a, 61a Horizontal mounting surface 70a, 71a Elastic protrusion 81 Pressing claw part 81a Pressing surface 81b Inclined surface

Claims (2)

A terminal holder made of a non-conductive material for positioning a plurality of terminal fittings at a predetermined arrangement pitch;
A resin housing that houses and holds the plurality of terminal fittings at a predetermined arrangement pitch by insert molding a plurality of terminal fittings positioned by the terminal holder together with the terminal holder,
An insert-molded connector comprising:
The terminal fitting has a substantially crank shape that is bent so that both ends of a straight rod-like body extend substantially at right angles to the intermediate portion and both ends extend opposite to each other,
The terminal holder is a means for positioning the terminal fitting at a predetermined arrangement pitch.
A mounting surface comprising a horizontal mounting surface and a vertical mounting surface for mounting the terminal fitting;
Is erected on the horizontal mounting surface and said vertical mounting surface so as to contact the outer surface of the horizontal mounting surface and the terminal fitting mounted on the vertical mounting surface, each of said terminal fittings An elastic protrusion that restricts movement in the direction along the mounting surface;
Said projecting from the front end of the elastic protruding pieces so as to cover on a horizontal mounting surface and the terminal fittings on the vertical mounting surface, restricting the movement in the direction lifted off the mounting surface of the terminal fitting Holding claw part to perform,
An insert-molded connector comprising: When the terminal fitting is placed on the mounting surface on the outer surface that is opposite to the surface that holds the terminal fitting, the holding claw portion is brought into contact with the terminal fitting so that the holding jaw is attached to the terminal fitting. Comprising an inclined surface that applies an urging force in a direction of retreating outward to the pressing claw portion;
The insert molding connector according to claim 1, wherein the inclined surface is formed to extend to an outside of a range where the pressing claw portion covers the terminal fitting.

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