JP4941244B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  Conventionally, there has been known a connector in which a sub-housing is assembled to a main body portion of the connector housing. For example, in Patent Document 1, a tab-like terminal is accommodated in a sub-housing, and when the sub-housing is in a single state, the tab portion of the tab-like terminal protrudes forward from the front surface of the sub-housing. In a state where the sub housing is exposed and assembled to the main body portion of the connector housing, the tab portion is covered with the hood portion of the connector housing in a protected state.

On the other hand, a connector having a moving plate is known separately from the above. For example, in the device described in Patent Document 2, a moving plate is incorporated in the hood portion of the connector housing, and the tab portion is positioned and aligned by penetrating the tip of the tab portion protruding into the hood portion. It has become.
JP 2003-151684 A JP 2002-15811 A

  In the connector described in Patent Document 1, when the necessity of positioning and protecting the tab portion is regarded as important, it is required to incorporate a moving plate as described in Patent Document 2 in the hood portion of the connector housing. When such a moving plate is applied to the connector described in Patent Document 1, if the sub-housing is in a normal assembly posture, the tip of the tab portion can be penetrated through the moving plate, but there are few problems. If the assembly posture is reversed in the forward and reverse directions, there is a concern that the tip of the exposed tab portion may be bent against the rear surface of the moving plate.

  The present invention has been completed based on the above situation, and an object thereof is to avoid deformation of the tab portion.

As means for achieving the above object, the invention of claim 1 includes a housing main body provided with a sub housing housing chamber penetrating in the front-rear direction, and inserted from the rear into the sub housing housing chamber of the housing main body. The sub-housing in which the tab portion of the tab-shaped terminal is exposed in a forward projecting state and the front surface of the housing body is connected to the front of the housing body. The sub-housing, and a hood part that projects the tab part of the tab-like terminal therein, and a moving plate that is incorporated in the hood part and aligns the tab part of the tab-like terminal in a penetrating state. said to one of the housing body is provided with three ribs, the other is provided with three receiving grooves, the auxiliary housing is a regular When taking the insertion posture, the rib fits into the receiving groove and the sub housing is allowed to be inserted into the housing body, and when the sub housing takes the insertion posture reversed forward and backward, The rib is removed from the receiving groove and interferes with the wall surface on the other side, so that the operation of inserting the sub housing into the housing body is restricted, and the rib is accommodated in the sub housing in the interference state between the rib and the other side. In the connector in which the tip of the tab portion of the tab-shaped terminal is arranged to be separated rearward from the rear surface of the moving plate , the housing body is made of synthetic resin and has a vertically long block shape, The sub-housing housing chamber has a substantially square cross-sectional shape, and is located at a position shifted downward from the vertical center of the housing body. The sub-housing has a substantially square block shape, and in a state where the sub-housing is in a normal insertion posture, the two receiving grooves and the two ribs are formed on the inner upper surface of the sub-housing housing chamber. And in a state where the sub-housing is in a normal insertion posture, the receiving groove and the rib are arranged in a state where the sub-housing is in a normal insertion posture. It is characterized in that it is arranged at the center in the width direction on the inner and lower surfaces of the housing accommodating chamber and the lower surface of the sub-housing .

  According to a second aspect of the present invention, in the first aspect, the receiving groove is provided on an inner surface of the sub housing housing chamber in the housing body, and the rib is provided on an outer peripheral surface of the sub housing. The front end of the rib is set at a position that is recessed backward from the front surface of the sub-housing, and when the sub-housing assumes an insertion posture that is reversed in the forward and reverse directions, the rib interferes with the rear surface of the housing body. The housing is characterized in that a region in front of the front end of the rib in the housing is fitted into the sub housing housing chamber.

  According to a third aspect of the present invention, in the first aspect of the present invention, the front end of the receiving groove abuts the rib when the sub-housing reaches a proper assembly position to form a front stop of the sub-housing. It is characterized by a front stop.

  According to a fourth aspect of the present invention, in the hood portion according to any one of the first to third aspects, the hood portion is provided with another tab portion that is one size larger than the tab portion. The moving plate is assembled to a part of the hood portion corresponding to the sub-housing, and only the tab portion mounted on the sub-housing is penetrated.

<Invention of Claim 1>
When the sub-housing is in an inverted orientation, the rib is removed from the receiving groove and interferes with the other side, which restricts the insertion of the sub-housing into the housing body, thus preventing incorrect assembly of the sub-housing. Is done. And in the interference state of this rib and the other side, since the front-end | tip of the tab part of the tab-shaped terminal accommodated in the subhousing is arrange | positioned back rather than the rear surface of a moving plate, it is in an exposure state at the time of a single unit. It is possible to avoid the tip of the tab portion from being bent and deformed due to interference with the moving plate.

<Invention of Claim 2>
If the rib is interfered with the rear surface of the housing body when the sub-housing is in a reverse / inverted insertion position, the region in front of the front end of the rib in the sub-housing fits into the sub-housing housing chamber. Forcible insertion into the housing housing chamber can be prevented, and reliability for preventing erroneous assembly can be improved.

<Invention of Claim 3>
Since the front end of the receiving groove is a front stop portion that forms the front stop of the sub-housing, the configuration of the housing body can be simplified as compared with the case where the front stop portion is provided separately.

<Invention of Claim 4>
Since the tab portion is smaller in size than the other tab portions, there is a circumstance that it is easily damaged by an impact, but it can be prevented from being damaged by being protected by the moving plate. In this case, since it is less necessary to protect the other tab portion having a larger size by the moving plate, the corresponding moving plate is not provided. Therefore, the moving plate can be made small, and the cost can be reduced.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. The connector of the present embodiment is a male connector, and includes a housing 10, a sub-housing 40, a moving plate 60, a lever 80, and a tab-like terminal 90 (so-called male terminal fitting), and the tab-like terminal 90 is made of metal. The rest is made of synthetic resin.

  The housing 10 includes a vertically long block-shaped housing main body 11 and a vertically long rectangular tubular hood portion 12 that is integrally connected to the front surface of the housing main body 11 and protrudes forward from the peripheral edge portion thereof. On both side walls in the width direction of the hood portion 12, relief grooves 13 are formed by slitting from the front end of the hood portion 12 to the rear.

  Of the hood portion 12, a large tab portion 90A is disposed at the uppermost position and the lowermost position, and a small tab portion 91 corresponding to the sub-housing 40 is disposed at a substantially central portion in the vertical direction. Further, an intermediate size tab portion 90B is disposed between the tab portions 90A and 91. Regarding the projecting dimensions of the tab portions 90A, 90B, 91 from the front surface of the housing main body 11, the tab portion 90A having a large size and the tab portion 90B having an intermediate size are substantially the same size, and the tab portion 91 has a smaller size. ing.

  As shown in FIG. 2, the lever 80 integrally includes a pair of arm portions 81 that form a plate shape along the outer surfaces of both side walls of the hood portion 12 and an operation portion 82 that connects the upper ends of both arm portions 81. A cam groove 83 is formed in both arm portions 81 and a bearing hole 84 is formed in both arm portions 81, and the support shaft 14 protruding from the outer surface of the hood portion 12 is fitted into the bearing hole 84. Yes. The lever 80 attached to the housing 10 by the engagement between the support shaft 14 and the bearing hole 84 shows the initial position where the entrance of the cam groove 83 corresponds to the escape groove 13 of the hood portion 12 and the operation portion 82 as shown in FIG. By rotating in the direction of the arrow, it is possible to move to a mating position where a mating female connector (not shown) is mated at a normal depth.

  As shown in FIG. 4, the moving plate 60 includes a plate-like plate main body 61 that faces the front surface of the housing main body 11 in parallel, and a horizontally long cylindrical tubular portion 62 that protrudes forward from the peripheral edge of the plate main body 61. It consists of. The moving plate 60 is partially inserted into the hood portion 12 and is disposed at a substantially central portion in the height direction of the hood portion 12. The moving plate 60 is disposed between the upper surface of the hood portion 12 and the lower surface of the upper wall of the hood portion 12. A distance is provided between the lower surface and the lower wall upper surface of the hood portion 12. A plurality of positioning holes 63 are formed through the plate body 61 in an aligned state. In addition, a pair of left and right cam followers 64 are formed on both side walls in the width direction of the cylindrical portion 62 so as to protrude. Both cam followers 64 pass through the escape groove 13 of the hood portion 12 in the thickness direction (width direction) and are fitted into the cam groove 83 of the lever 80, and cam pins (not shown) of the mating female connector are inserted therein. Z) is inserted. When the cam action by the engagement between the cam followers 64 and the cam groove 83 is exhibited by the turning operation of the lever 80, the moving plate 60 can move in the hood portion 12 in the front-rear direction in conjunction with the lever 80. Yes. Specifically, when the lever 80 is in the initial position, the moving plate 60 is in the advanced position close to the opening side of the hood portion 12, and the moving plate 60 is moved to the fitting position as the lever 80 is rotated to the fitting position. When the lever 80 reaches the mating position, the plate body 61 abuts the mating female housing on the front side and the sub-housing 40 on the rear side. It is in the retracted position where it contacts. At the advanced position, the tip of a tab portion 91 (described later) of the tab-shaped terminal 90 accommodated in the sub-housing 40 passes through the positioning hole 63 of the plate body 61 and faces the cylindrical portion 62, and goes to the retracted position. Accordingly, the amount of entry of the tab portion 91 into the cylindrical portion 62 is increased.

  A cavity 15 that can accommodate a tab-like terminal 90 is formed in parallel in an upper region and a lower region of the housing body 11. A tab-like terminal 90 is inserted into the cavity 15 from the rear, a bendable lance 16 is formed on the inner wall of the cavity 15 to prevent the tab-like terminal 90 from coming out rearward, and a tab is formed on the front wall of the cavity 15. An insertion hole 17 in the tab portion 91 of the tab-like terminal 90 and a tapered front stop surface 18 that surrounds the periphery and restricts further advancement of the tab-like terminal 90 are formed. The tab portion 91 of each tab-like terminal 90 inserted into the cavity 15 is projected into the hood portion 12 with its tip position aligned.

  As shown in FIGS. 3 and 5, only one sub-housing housing chamber 19 for assembling the sub-housing 40 is formed in the central portion of the housing body 11 in the height direction. The sub-housing housing chamber 19 has a cross-sectional shape corresponding to the sub-housing 40, and is formed in a shape penetrating the housing main body 11 in the front-rear direction by being positioned immediately after the assembly position of the moving plate 60. A pair of retaining portions 21 that prevent the sub-housing 40 that has been properly assembled from coming off are formed on the inner surfaces of both sides in the width direction of the sub-housing housing chamber 19. A plurality of receiving grooves 22 are formed in the inner surface of the sub housing housing chamber 19. Specifically, the receiving groove 22 has a square cross-sectional shape with rounded corners, and two are provided on the inner upper surface of the sub-housing housing chamber 19 and one on the inner lower surface of the sub-housing housing chamber 19. The two receiving grooves 22 are arranged in pairs on both sides of the widthwise central portion, and one receiving groove 22 on the inner and lower surfaces is arranged at the widthwise central portion. The rear end of the receiving groove 22 opens to the rear surface of the housing main body 11 (housing 10). The front end of the receiving groove 22 is slightly behind the front surface of the housing main body 11 and is a vertical wall between the front surface of the housing main body 11 and the front surface. A closed wall 23 is interposed, and is formed to extend straight from the front end to the rear end of the receiving groove 22. The front end of the receiving groove 22 (the rear surface of the closing wall 23) stands substantially vertically in parallel with the front surface of the housing body 11, and this is a front stop portion where the sub-housing 40 that has reached the normal assembly position is stopped. 24.

  As shown in FIGS. 6 and 7, the sub housing 40 has a substantially square block shape, and is inserted into the sub housing housing chamber 19 of the housing main body 11 from the rear. A plurality of cavities 41 that can accommodate tab-like terminals 90 connected to the ends of the electric wires 99 are formed in the sub-housing 40 so as to penetrate in the front-rear direction, and tab-like terminals 90 are formed on the inner wall of the cavities 41. A bendable lance 42 that prevents the tab-like terminal 90 is formed, and the front wall of the cavity 41 surrounds the insertion hole 43 of the tab portion 91 of the tab-like terminal 90 and the periphery thereof to restrict further advancement of the tab-like terminal 90. A tapered front stop surface 44 is formed. A retainer mounting hole 45 communicating with each cavity 41 is formed in the lower surface of the sub housing 40 behind the lance 42 so as to open on the lower surface. The side type retainer 30 is inserted into the retainer mounting hole 45 from below, and the tab-like terminal 90 is double-locked together with the lance 42 by the retainer 30 inserted into the retainer mounting hole 45 at a normal depth. ing. On both side surfaces of the sub-housing 40 in the width direction, protrusions 46 that can be engaged with the retaining portions 21 of the housing body 11 are provided at positions slightly above the center in the height direction and closer to the front end. .

  In the lower half of both side surfaces of the sub-housing 40, a bulging portion 47 bulging on both sides in the width direction from the upper half is formed, and the openings 48 formed in the bulging portion 47 have both sides of the retainer. Part of the face is facing. The front surface of the sub-housing 40 is a fitting surface with which the mating female housing can abut during normal fitting, and the opening of the insertion hole 43 of the tab portion 91 forms a substantially square shape and is aligned in the height direction and the width direction. A plurality of them are arranged. Before assembly to the housing body 11 (in a single unit state), the tab-like terminal 90 that is normally inserted into the cavity 41 exposes the tab portion 91 in a protruding state from the front surface of the sub-housing 40. . On the other hand, after the assembly to the housing body 11, the tab portion 91 of the tab-like terminal 90 accommodated in the sub-housing 40 is covered with the hood portion 12 in a protected state. Further, immediately after the assembly to the housing body 11, the tip of the tab portion 91 of the tab-shaped terminal 90 penetrates the positioning hole 63 of the moving plate 60 in the advanced position in a state where the sub housing 40 is assembled to the housing body 11. It is in a position that slightly protrudes into the cylindrical portion 62.

  A plurality of ribs 49 extending in the front-rear direction are formed on the outer peripheral surface of the sub-housing 40. When the sub-housing 40 is in a proper insertion posture into the sub-housing housing chamber 19, the rib 49 is disposed at a position corresponding to the receiving groove 22, and the sub-housing 40 is assembled to the sub-housing housing chamber 19. When the sub housing 40 is in the forward / reverse inverted posture (upside down posture), the rib 49 is disengaged from the position corresponding to the receiving groove 22 and interferes with the rear surface of the housing body 11. The assembling operation of the housing 40 to the sub housing housing chamber 19 is restricted. Specifically, the rib 49 has a shape that fits the receiving groove 22 and has a square cross-sectional shape with rounded corners. The front end of the rib 49 is set at a position slightly retracted from the front surface of the sub-housing 40, and then the rear side. While extending straight, the rear end reaches the same position as the rear surface of the sub-housing 40 in the front-rear direction. More specifically, the front end of the rib 49 is set to be slightly in front of the front end of the bulging portion 47 at the substantially same position as the base where the tab portion 91 continues to the box portion 92 in the front-rear direction. More specifically, the ribs 49 are arranged in pairs on both sides of the center of the upper surface of the sub housing 40 across the center in the width direction, and one rib 49 is disposed at the center of the lower surface of the sub housing 40 in the width direction. The ribs 49 disposed on the lower surface of 40 are interrupted at a position corresponding to the opening of the retainer mounting hole 45 and are divided back and forth across the retainer mounting hole 45.

Next, the effect of this embodiment is demonstrated.
The sub housing 40 is inserted into the sub housing housing chamber 19 of the housing body 11 from behind. If the sub-housing 40 is in a proper insertion posture, the ribs 49 of the sub-housing 40 and the receiving grooves 22 of the housing body 11 are fitted, and the sub-housing 40 is smoothly inserted into the sub-housing housing chamber 19. In the insertion process, the rib 49 is in sliding contact with the groove surface of the receiving groove 22 to guide the insertion operation of the sub-housing 40, and the front end of the rib 49 comes into contact with the front stop 24 of the receiving groove 22 as the insertion is completed. Any further progress is restricted. Further, with the completion of the insertion, the retaining portion 21 and the protrusion 46 are engaged with each other in the direction in which the sub-housing 40 is removed, and the retreat of the sub-housing 40 is restricted (see FIG. 1). When the sub-housing 40 reaches the normal assembly position in this way, the front surface of the sub-housing 40 is aligned with the front surface of the housing main body 11 (the back surface of the hood portion 12) in the front-rear direction.

  While the lever 80 is set at the initial position and the moving plate 60 is set at the advanced position, the female connector is shallowly fitted into the hood portion 12 while the cap pin is released and pushed along the groove 13, and the entrance of the cam groove 83 is set. The cam pin is inserted into the cam follower 64 that is standing by. Then, the cam pin is combined with the cam follower 64 and is engaged with the cam groove 83. Further, the female housing of the female connector is fitted into the moving plate 60. When the lever 80 is rotated from this state to the fitting position, the moving plate 60 and the female connector are integrated and pulled into the back side of the hood portion 12 by the cam action due to the engagement of the cam pin / cam follower 64 and the cam groove 83. As a result, both connectors reach a proper mating state. In this fitting process, each tab portion 91 of the sub-housing 40 is held in an aligned state by being restrained by the positioning hole 63 of the plate body 61, thereby obtaining a reliable conduction state with the female terminal fitting on the female connector side. . In the case of releasing both connectors, if the lever 80 is rotated in the returning direction from the fitting position to the initial position, the two connectors can be pulled apart from each other through the reverse operation.

  By the way, if the sub-housing 40 is in a reverse / inverted posture, the rib 49 and the receiving groove 22 become incompatible, and the operation of inserting the sub-housing 40 into the sub-housing housing chamber 19 is restricted. At this time, the rib 49 abuts against the rear surface of the housing main body 11, and a region of the housing main body 11 in front of the front end of the rib 49 (hereinafter referred to as the front region 51) is in an idle regulation state from the rear in the sub housing housing chamber 19. And the tab portion 91 faces into the sub-housing housing chamber 19 (see FIG. 4). In this state, the front end of the tab portion 91 is disposed behind the rear surface of the moving plate 60 (plate body 61) in the sub housing housing chamber 19 and in the advanced position. Therefore, the tip of the tab portion 91 does not hit the rear surface of the moving plate 60 (plate body 61). Further, even if the moving plate 60 is in the retracted position, there is a distance between the front end of the tab portion 91 of the tab-like terminal 90 housed in the sub-housing 40 that is in the forward / reverse reversed position and the rear surface of the plate body 61. In this case, the tab portion 91 does not hit the rear surface of the plate body 61.

  Therefore, according to the connector of the present embodiment, the rib 49 and the receiving groove 22 prevent the sub housing 40 from being erroneously assembled (incorrect insertion) into the housing main body 11, and the rib 49 and the housing main body at the time of the erroneous assembly. 11, the front end of the tab portion 91 of the tab-like terminal 90 accommodated in the sub-housing 40 is spaced apart from the rear surface of the moving plate 60, so that the tab is exposed when it is alone. It can be avoided that the tip of the portion 91 is bent and deformed due to interference with the moving plate 60.

  Further, when the rib 49 interferes with the rear surface of the housing body 11 when the sub-housing 40 is in the normal / reverse insertion posture, the front region 51 of the sub-housing 40 is fitted into the sub-housing housing chamber 19 and positioned. Therefore, the rib 49 of the sub-housing 40 can be prevented from being forced into the sub-housing housing chamber 19, and the reliability of preventing the sub-housing 40 from being assembled incorrectly can be improved.

  Furthermore, since the front end of the receiving groove 22 is the front stop portion 24 that forms the front stop of the sub-housing 40, the configuration of the housing body 11 can be simplified compared to the case where the front stop portion 24 is provided separately.

  Furthermore, since the tab portion 91 is smaller in size than the other tab portions 90A and 90B, the tab portion 91 is easily damaged by an impact. However, the tab portion 91 can be prevented from being damaged by being protected by the moving plate 60. In this case, since it is less necessary to protect the other tab portions 90A and 90B with the moving plate 60, the corresponding moving plate 60 is not provided. Therefore, the moving plate 60 can be reduced in size and can be reduced in cost.

<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.
(1) Contrary to the above embodiment, a receiving groove may be provided on the sub-housing side, and a rib may be provided on the housing body side.
(2) A plurality of sub-housing housing chambers may be provided in the housing body, and the housing may be capable of receiving a plurality of sub-housings. In this case, the housing body may not have a cavity.
(3) There may be no lever.
(4) The shape, number, and arrangement of the ribs and receiving grooves are arbitrary as long as it is possible to prevent erroneous assembly of the sub-housing.

Side sectional view of the connector of this embodiment Connector side view Side sectional view of the connector in the state before inserting the sub-housing Side sectional view of the connector in a state in which the ribs interfere with the housing body with the sub-housing reversed forward and reverse Rear view of housing Side sectional view of sub-housing containing tab-like terminals Front view of sub housing

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Housing 11 ... Housing main body 12 ... Hood part 22 ... Receiving groove 24 ... Front stop part 40 ... Sub housing 49 ... Rib 60 ... Moving plate 61 ... Plate main body 90 ... Tab-shaped terminal 91 ... Tab part

Claims (4)

A housing body having a sub-housing housing chamber penetrating in the front-rear direction;
The housing body is inserted and assembled into the sub-housing housing chamber from the rear, so that the tab-like terminal can be accommodated and the tab portion of the tab-like terminal is exposed in a protruding state in a single state. A sub-housing,
A hood portion that is connected to the front surface of the housing main body and protrudes forward in a cylindrical shape and has a tab portion of the tab-shaped terminal disposed therein,
A moving plate that is incorporated into the hood portion and aligns the tab portions of the tab-like terminals in a penetrating state;
One of the sub-housing and the housing body is provided with three ribs , and the other is provided with three receiving grooves ,
When the sub-housing takes a normal insertion posture, the rib fits into the receiving groove and the sub-housing is allowed to be inserted into the housing body,
When the sub-housing has an insertion posture that is reversed in the forward and reverse directions, the rib is removed from the receiving groove and interferes with the wall surface on the other side, thereby restricting the insertion operation of the sub-housing into the housing body. In addition, in the interference state between the rib and the other side, in the connector in which the tip of the tab portion of the tab-like terminal accommodated in the sub-housing is arranged to be separated from the rear surface of the moving plate ,
The housing body is made of synthetic resin and has a vertically long block shape.
The sub-housing housing chamber has a substantially square cross-sectional shape, and is disposed only at one position shifted downward from the vertical center in the housing body,
The sub-housing has a substantially square block shape,
In a state where the sub-housing is in a normal insertion posture, the two receiving grooves and the two ribs are opposed to both sides of the inner upper surface of the sub-housing housing chamber and the central portion in the width direction on the upper surface of the sub-housing. Arranged
In a state where the sub-housing takes a normal insertion posture, one receiving groove and one rib are arranged at the center in the width direction on the inner and lower surfaces of the sub-housing housing chamber and the lower surface of the sub-housing. Characteristic connector. The receiving groove is provided on the inner surface of the sub housing housing chamber in the housing body,
The rib is provided on the outer peripheral surface of the sub-housing, and the front end of the rib is set at a position withdrawn backward from the front surface of the sub-housing. The region in front of the front end of the rib in the sub-housing fits into the sub-housing housing chamber when the rib interferes with the rear surface of the housing body. Connector.   3. The front end of the receiving groove is a front stop portion that abuts against the rib when the sub housing reaches a normal assembly position and forms a front stop of the sub housing. 4. The connector described. In the hood part, another tab part that is one size larger than the tab part is arranged to protrude,
The said moving plate is assembled | attached to a part corresponding to the said sub housing among the said food | hood parts, and only penetrates the said tab part with which the said sub housing was mounted | worn, Any one of Claim 1 thru | or 3 characterized by the above-mentioned. The connector according to the above.

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