JP4780754B2 - Connector connection structure - Google Patents

Description

  The present invention relates to a connector coupling structure for coupling connectors used to connect an auxiliary machine such as an audio or meter equipped in an automobile or the like and a wire harness.

  As a conventional connector coupling structure, for example, when audio is mounted on an automobile instrument panel, a female connector is connected to a wire harness extending from the power source to the panel, and the male connector provided on the back side of the audio is connected to the female connector. The connectors were connected, but the work of connecting the male and female connectors on the back of the instrument panel was performed, and the audio was fixed to the instrument panel after the connection. For this reason, two operations are performed, workability is poor, and slack due to the extra length of the harness occurs after attaching the audio, and there is a problem that abnormal noise is generated during traveling.

In view of this, a connector has been developed that can eliminate the misalignment between the male connector and the female connector by the connector itself, improve the efficiency of the assembling work, and connect the connectors easily and reliably. The female connector includes a housing, a guide that allows the housing to move, a first cylindrical protrusion provided on the guide, and a second cylindrical protrusion provided on the housing, and the male connector is a male connector housing. And a lever, a female connector terminal and a male connector terminal provided in the housing, and a guide groove for guiding the first and second columnar protrusions. Then, the female connector housing is moved in the direction of coupling with the male connector by using the first cylindrical protrusion as an action point and the second cylindrical protrusion as a force point inside the guide groove to couple both housings (see Patent Document 1). ).
JP 2000-215944 A (page 4, FIG. 3)

  In the male connector disclosed in Patent Document 1, U-shaped levers having fulcrums arranged on the upper and lower surfaces of the housing and connected to the opposite side of the fulcrum are provided symmetrically and formed on the levers. The connectors are coupled to each other while guiding the first and second cylindrical protrusions in the lever groove, and the lever has an important structure having a function of a cam. In order to make such a cam part (lever) an indispensable structure, the number of parts increased and the cost was high. Moreover, since this cam part (lever) is large, there is a disadvantage that the degree of freedom in designing the module is lowered.

  Therefore, the present invention eliminates the conventional lever, achieves downsizing and cost reduction, enables three-axis alignment in the three directions of the X axis, Y axis, and Z axis, and increases the degree of freedom in module design. Another object is to provide a connector coupling structure.

To achieve the above object, the present invention provides a female connector including an inner case having an electrode insertion hole, a female housing for housing the inner case, and a male terminal inserted into the electrode insertion hole. And a male connector including a male housing that accommodates the male terminal, and a contour line defining the back surface around the back surface of the female housing from each distal end side of the spring piece and forming a plurality of bulging outward, attached to the female side of the housing to the panel opening the tip of the engaging walls of the plurality of spring pieces of the panel opening elastically contacted thereby, further, A notch piece having a claw portion that engages with and disengages from a protrusion provided on a side surface of the inner case is formed in front of the female housing. A swellable housing is formed, and a bulging portion is formed on the inside of the distal end side of the male housing so as to contact the outer surface of the female housing, and the female housing is fitted into the male housing. A gap is provided between the inner surface of the male housing other than the bulging portion and the outer surface of the female housing when mating, and when the connector is coupled, the female housing is fitted into the male housing, When the male terminal is inserted into the electrode insertion hole, the tip of the notch piece is retreated into the gap to disengage the protrusion and the claw portion, and the inner case is attached to the female housing. To slide.

According to the present invention, the plurality of spring pieces that elastically contact the locking wall of the panel opening are formed around the back side of the housing on the female side, thereby adjusting the position in the two directions of the X axis and the Y axis. are possible, the disengagement of the female side of the forward-formed claw portion and Lee N'nakesu projection of the housing, facilitates adjustment of the position of the Z-axis direction. In addition, since a pair of large left and right levers as in the prior art is not used, it is possible to reduce the size and cost.

  Embodiments of the present invention will be described below with reference to the drawings.

  In FIG. 1, a state in which a female connector 4 is attached to a panel 1 for attaching one connector such as an instrument panel is viewed from the back of the panel 1. The panel 1 has an opening 2 for attaching the connector 4, and a locking wall 3 is formed on the back side of the opening 2. The locking wall 3 is formed by a projection formed on the back surface of the panel 1 and a peripheral wall of a hole on the same plane as the opening 2. A plurality of spring pieces 5 having tips 5A bulging outward are formed on the back surface of the connector 4, and the tips 5A of the spring pieces 5 bulging out are in elastic contact with the locking wall 3. A connector 4 is attached to the panel 1. The distal end 5A of the spring piece 5 bulges so as to protrude outward from the outline defining the back surface of the connector 4. With the tip 5A of the spring piece 5 in elastic contact with the locking wall 3, the connector 4 can be adjusted in position in the X-axis direction and the Y-axis direction. The spring pieces 5 are integrally formed when the housing 40 of the connector 4 is formed from a resin material, and one pair is formed on each of the upper and lower short sides of the rectangular back shape, and two pairs are formed on the long sides on both sides. .

  Further, two notches 6 with U-shaped cuts are formed at two locations on the front side of the housing 40 of the connector 4. Inside the housing 40, an inner case 8 having a number of electrode insertion holes 7 described later is slidably accommodated. The inner case 8 is temporarily fixed by a claw portion 11 (described later) formed in the notch piece 6.

  A male connector 9 is fitted to the female connector 4. In FIG. 1, a large number of male terminals 10 inserted into the electrode insertion holes 7 are not shown, and only a housing 90 that accommodates the male terminals 10 is shown. The housing 90 is fitted so as to cover the housing 40. The male connector 9 is provided on the back side of an auxiliary device such as a meter.

  FIG. 2 is a view as seen from the front side of the panel 1. The inner case 8 includes a large number of electrode insertion holes 7, the female terminals of the wire harness from the power source are attached, and the male side provided on the back side of the accessory is installed. The male terminal 10 of the connector 9 is inserted into the electrode insertion hole 7 and the two connectors 4 and 9 are joined. The combined state is shown in FIG.

  The connecting operation of both connectors 4 and 9 will be described with reference to FIG. In FIG. 4, a claw portion 11 is formed inside the notch piece 6, and a state in which the claw portion 11 and the protrusion 12 formed on the inner case 8 are engaged is shown. The inner case 8 in the housing 40 of the connector 4 in this state is in a temporarily fixed state, and the inner case 8 does not slide in the housing 40 unless the temporary fixing is released. Further, a bulging portion 13 is formed on the inner surface of the front end of the housing 90 on the connector 9 side, and this bulging portion 13 contacts the outer surface of the housing 40, and the inner surface of the housing 90 below the bulging portion 13 and the housing A gap 14 is formed between the outer surface of 40. Although it is desirable to form the bulging portion 13 around the entire inner surface, it may be only the inner surface portion of the housing 90 corresponding to the formation portion of the notch piece 6. When the protrusion 12 gets over the claw portion 11 of the notch piece 6, the tip end of the notch piece 6 is lifted to the outside, so that the clearance 14 corresponding to the lifted portion is required inside the housing 90.

  5 and 6, when the male terminal 10 (not shown) is inserted into the electrode insertion hole 7, the deviation between the X axis and the Y axis is adjusted by the spring piece 5 and inserted at the correct position. If the male terminal 10 is correctly inserted into the electrode insertion hole 7 in the state of FIG. 5, the male connector 9 is further pushed into the female connector 4. The support member 15 that supports the male terminal 10 contacts the front surface of the inner case 8, but the inner case 8 temporarily stops in this state because the protrusion 12 is engaged with the claw portion 11. When the male terminal 10 is inserted into the electrode insertion hole 7, the inner case 8 is in a temporarily fixed state, so that the insertion operation is easy and the two-direction adjustment of the X axis and the Y axis is also easy. When the male connector 9 is further pushed in, as shown in FIG. 7, the protruding portion 12 of the inner case 8 gets over the claw portion 11 and lifts the distal end side of the notch piece 6 outward. Escape to. Further, when the connector 9 is pushed in, the support member 15 comes into contact with the end of the housing 40 and stops. The state of FIG. 8 is a state where the connector 9 is pushed in as much as possible, and the range of L is slid from the temporarily fixed state (FIG. 6) to be completely coupled. If the fitting depth is too deep in this state, the connector 9 can be pulled back and adjusted.

The perspective view before the coupling | bonding seen from the back side of the panel. The perspective view before the coupling | bonding seen from the front side of the panel. The perspective view of a combined state. The simplified cross-sectional view before joining. The simplified sectional view of the state which started fitting one housing in the other housing. The simplified sectional view in the middle of fitting. The simplified sectional view at the time of temporary stop release. The simplified sectional view of a combined state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel 2 Opening 3 Locking wall 4 Connector 5 Spring piece 5A Tip 6 Notch piece 7 Electrode insertion hole 8 Inner case 9 Connector 10 Male terminal 11 Claw part 12 Protrusion part 13 Protruding part 14 Gap 40 Housing 90 Housing

Claims (1)

A female connector including an inner case having an electrode insertion hole, a female housing housing the inner case, a male terminal inserted into the electrode insertion hole, and a male housing housing the male terminal A connector coupling structure for coupling a male connector with
Around the back side of the housing on the female side, a plurality of spring pieces bulging outward from the outline defining the back side are formed, and the tips of the plurality of spring pieces are placed on the locking wall of the panel opening. Attach the female housing to the panel opening in elastic contact,
Furthermore, a notch piece having a claw portion that engages with and disengages from a protrusion provided on a side surface of the inner case is formed in front of the female housing.
The inner case is slidably accommodated with respect to the female housing, and a bulging portion that contacts the outer surface of the female housing is formed on the inner side of the distal end of the male housing.
When the female housing fits into the male housing, a gap is provided between the inner surface of the male housing other than the bulging portion and the outer surface of the female housing,
When the connector is coupled, the female housing is fitted into the male housing, and when the male terminal is inserted into the electrode insertion hole, the tip of the notch piece escapes into the gap, and the protrusion and the claw A connector coupling structure, wherein the inner case is slid relative to the female housing.

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