JP2013089386A - Board connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a board connector capable of accurately managing protruding margin size at the tip of a terminal toward a board.SOLUTION: A board connector comprises:a connector housing 1; a terminal 3 which is bent in an L shape after a rear end side 3b is projected from a rear wall 2 of the connector housing and in which a tip 3d of a straight part 3c extending toward a board after being bent is soldered to the board; and an alignment plate 4 for positioning the terminal tip on an X-Y flat plane. A protruding margin size of the terminal tip is managed by: bending the terminal in an L shape so that a tip position of the straight part is projected more largely than a position L of a normal protruding margin size when being bent in an L shape so that the rear end side of the terminal projected outside from the rear wall of the connector housing faces the board; providing a stopper 3e in front of the tip of the straight part extending toward the board after being bent; inserting the tip of the straight part into a terminal insertion hole of the alignment plate; and pressing and positioning the stopper to the alignment plate by elastic repulsive force P.

Description

  The present invention relates to a board connector for soldering the tip of an L-shaped terminal extending rearward of a connector housing to a board.

  Conventionally, what was described in patent document 1 is known as an example of the board | substrate connector. 2A and 2B are board connectors described in Patent Document 1. FIG. 2A is a perspective view and FIG. 2B is a side sectional view.

  As shown in FIGS. 2A and 2B, this board connector is arranged along the front and rear directions of the connector housing 11 fixed to the upper surface of the board 100 with the bottom surface 11 b facing. After the front end side 13a protrudes into the mating connector fitting recess 11a of the connector housing 11, and the rear end side 13b protrudes straight out from the press-fitting hole 12a of the rear wall 12 of the connector housing 11, the board The front end 13d of the straight portion 13c extending toward the board 100 after being bent extends to the rear portion of the connector housing 11 and the terminal 13 soldered to the through hole 100a of the board 100. A distal end 13d of the linear portion 13c of the terminal 13 which is fixed to the left and right bracket walls 16 to be extended through the locking means 18 and extends toward the substrate 100 is provided. By being inserted into the terminal insertion hole 14a of the body, and includes an alignment plate 14 for positioning the leading end 13d of the straight portions 13c of the terminals 13 in a plane along the upper surface of the substrate 100, a.

  Here, when the front-rear direction of the connector housing 11 is the X direction, the left-right direction is the Y direction, and the vertical direction is the Z direction, each terminal 13 is disposed in the connector housing 11 so as to extend in the X direction. A straight line portion 13 c on the rear end side 13 b extends in the Z direction toward the substrate 100. And the front-end | tip 13d of the linear part 13c of each terminal 13 is positioned on XY plane which is a plane parallel to the upper surface of the board | substrate 100 by inserting in the terminal insertion hole 14a of the alignment plate 14, respectively.

  When manufacturing this board connector, first, each terminal 13 is press-fitted into the press-fitting hole 12a of the rear wall 12 of the connector housing 11, and after the press-fitting, each terminal 13 protruding rearward from the rear wall 12 of the connector housing 11 is inserted. The rear end side 13 b is bent in an L shape so as to face the substrate 100. The alignment plate 14 is engaged with the left and right brackets 16 at the rear of the connector housing 11 while the tips 13d of the straight portions 13c extending toward the substrate 100 after being bent are inserted into the terminal insertion holes 14a of the alignment plate 14, respectively. Assemble through. By doing so, the tip 13d of the straight portion 13c of each terminal 13 can be properly positioned on a plane along the upper surface of the substrate 100, that is, on the XY plane.

JP 2005-123120 A

  In the conventional board connector, the alignment plate 14 can position the tip 13d of the straight portion 13c of the terminal 13 on the XY plane, but the position in the Z direction is not managed. Accordingly, even if the allowance dimension in the Z direction is satisfied at the time of assembling, if the external force is applied or the terminal 13 is deformed before soldering to the subsequent substrate 100, the allowance dimension is There was a possibility that it would fall out of the proper range. As a result, for example, when the allowance dimension is larger than the appropriate range, there is a possibility that the tip 13d of the terminal 13 contacts other parts on the lower surface side of the substrate 100 after soldering to the substrate 100, If the allowance dimension is smaller than the appropriate range, the area of the solder joint surface between the substrate 100 and the tip 13d of the terminal 13 cannot be secured, and the reliability of the solder connection portion may be affected. was there.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a board connector that can accurately manage a protruding dimension of a tip of a terminal toward the board.

The above object of the present invention can be achieved by the following constitution.
(1) a connector housing fixed to the upper surface of the board with the bottom surface facing;
The connector housing is disposed along the front-rear direction of the connector housing, and the rear end side of the connector housing protrudes linearly outward from the rear wall of the connector housing, and then bends in an L shape toward the board. A terminal where the tip of the linear portion extending toward the substrate is soldered to the substrate;
The tip of the straight portion of the terminal that is fixed to the rear portion of the connector housing and extends toward the board is inserted into its own terminal insertion hole, so that the tip of the straight portion of the terminal extends along the upper surface of the board. In a board connector comprising an alignment plate for positioning on a plane,
When the rear end side of the terminal protruding outward from the rear wall of the connector housing is bent in an L shape so as to face the board, the front end of the linear portion protrudes more than the position of the normal protruding dimension. A stopper that abuts against the periphery of the terminal insertion hole of the alignment plate is provided at a position in front of the tip of the linear portion that extends toward the substrate after bending, and the terminal is inserted into the terminal insertion hole of the alignment plate. A board connector characterized in that a tip of a straight line portion is inserted, and the stopper is pressed against the periphery of a terminal insertion hole of an alignment plate by its own elastic repulsive force for positioning.

 According to the board connector configured as described in (1) above, the tip of the linear portion on the rear end side of the terminal is inserted into the terminal insertion hole of the alignment plate, and the stopper provided in the middle of the linear portion is connected to the terminal insertion hole of the alignment plate. Since the peripheral edge of the terminal is pressed by an elastic repulsive force, the allowance dimension at the tip of the linear portion of the terminal can be managed with high accuracy. In other words, since the stopper is in contact with the alignment plate, the allowance of the tip of the terminal toward the board does not increase, and the stopper presses against the alignment plate with an elastic repulsive force. The allowance dimension at the tip of all terminals is not reduced, and the allowance dimension is accurately managed within the appropriate tolerance.

  ADVANTAGE OF THE INVENTION According to this invention, the allowance dimension of the front-end | tip of the terminal toward a board | substrate can be managed accurately. Therefore, for example, if the lead allowance dimension of the terminal tip toward the board is larger than the appropriate range, the terminal tip may come into contact with other components on the lower surface side of the board after soldering to the board. When the marginal dimension is smaller than the appropriate range, the area of the solder joint surface at the tip of the substrate and the terminal cannot be secured, and the possibility of affecting the reliability of the solder connection portion can be eliminated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing a configuration of a main part of a board connector according to an embodiment of the present invention. FIG. 1 (a) is a view showing a state before the alignment plate is assembled to a connector housing, and FIG. It is a figure which shows the state after assembling | attaching to a connector housing. FIG. 2A is a perspective view and FIG. 2B is a sectional side view of a conventional board connector.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side cross-sectional view showing the configuration of the main part of the board connector according to the embodiment. FIG. 1 (a) is a view showing a state before the alignment plate is assembled to the connector housing, and FIG. It is a figure which shows the state after assembling | attaching to a connector housing. 1 (a) and 1 (b) show only the main configuration, but the components not shown in the drawing are similar to those in FIGS. 2 (a) and 2 (b). 2A and 2B will be used as necessary.

  As shown in FIG. 1, this board connector is a board (not shown in FIGS. 1 (a) and 1 (b), but similar to the board 100 in FIGS. 2 (a) and 2 (b)). The connector housing 1 is fixed to the plurality of terminals 3, the plurality of terminals 3, and the alignment plate 4. Here, as in FIGS. 2 (a) and 2 (b), the connector housing 11 in a plane parallel to the upper surface of the board is in the X direction, the left / right direction is the Y direction, and the connector is perpendicular to the board. The vertical direction of the housing 1 is defined as the Z direction.

  The connector housing 1 is fixed to the upper surface of the board with the bottom surface 1 b facing, and the terminals 3 are arranged along the front-rear direction (X direction) of the connector housing 11. The front end side 3 a of the terminal 3 projects into the mating connector fitting recess 1 a facing the front side of the connector housing 1. Further, the rear end side 3b of the terminal 3 protrudes linearly from the press-fitting hole 2a of the rear wall 2 of the connector housing 1 and then bends in an L shape so as to face the board. The leading end 3d of the straight line portion 3c extending in this manner is passed through the through hole of the substrate and soldered.

  In addition, the alignment plate 4 has left and right bracket walls extending to the rear part of the connector housing 1 (not shown in FIGS. 1A and 1B, but left and right brackets in FIGS. 2A and 2B). Locking means (similar to the wall 16) (not shown in FIGS. 1 (a) and 1 (b) but similar to the locking means 18 in FIGS. 2 (a) and 2 (b)). And has a plurality of terminal insertion holes 4a through which the ends 3d of the straight portions 3c of the terminals 3 extending toward the substrate are respectively inserted. By inserting the tip 3d of the straight portion 3c of the terminal 3 into the terminal insertion hole 4a of the alignment plate 4, the tip 3d of the straight portion 3c of the terminal 3 is placed on the plane along the upper surface of the substrate, that is, on the XY plane. Can be positioned.

  Further, when the terminal 3 is bent into an L shape so that the rear end side 3b protruding outward from the rear wall 2 of the connector housing 1 faces the substrate, as shown in FIG. The tip 3d is bent in an L shape so that the tip 3d protrudes more than the position L of the normal allowance dimension. In addition, a stopper 3e that abuts the periphery of the terminal insertion hole 4a of the alignment plate 4 is provided at a position before the tip 3d of the linear portion 3c that extends toward the substrate after bending.

  Then, the alignment plate 4 is lifted as indicated by an arrow S in FIG. 1A, the tip d of the straight portion 3c of the terminal 3 is inserted into the terminal insertion hole 4a of the alignment plate 4, and the stopper 3e is inserted into the stopper 3e in FIG. As shown in FIG. 5B, the positioning of the tip 3d of the straight portion 3c of the terminal 3 toward the substrate is performed by pressing and positioning the peripheral edge of the terminal insertion hole 4a of the alignment plate 4 with the elastic repulsive force P of the terminal 3. Dimensions are controlled.

  When manufacturing this board connector, first, each terminal 3 is press-fitted into the press-fitting hole 2a of the rear wall 2 of the connector housing 1, and after the press-fitting, the rear wall 2 of the connector housing 1 as shown in FIG. The rear end side 3b of each terminal 3 protruding rearward from the terminal is bent in an L shape so as to face the substrate. At this time, the straight portion 3c is bent into an L shape so that the tip 3d protrudes more than the position L of the normal allowance dimension. Next, the alignment plate 4 is moved as shown by the arrow S and assembled to the connector housing 1 while the tip 3 d of the linear portion 3 c of the terminal 3 is inserted into the terminal insertion hole 4 a of the alignment plate 4.

  As assembled, the peripheral upper surface of the terminal insertion hole 4a of the alignment plate 4 hits the stopper 3e. When the alignment plate 4 is further lifted and locked at an appropriate position, the rear end side 3b of the terminal 13 is elastically deformed via the stopper 3e. As shown in FIG. 1 (b), the tip 3d of the straight portion 3c of the terminal 3 is held at the position L of the normal output allowance. At this time, the stopper 3 e is positioned by being pressed against the peripheral edge of the terminal insertion hole 4 a of the alignment plate 4 by the elastic repulsive force P of the terminal 3. Thus, the allowance dimension (position of the tip 3d of the terminal 3 in the Z direction) toward the substrate of the tip 3d of the linear portion 3c of the terminal 3 is managed.

  According to the board connector of the present embodiment, the tip 3d of the straight portion 3c on the rear end side 3b of the terminal 3 is inserted into the terminal insertion hole 4a of the alignment plate 4, and the stopper 3e provided in the middle of the straight portion 3c is aligned. Since the peripheral edge of the terminal insertion hole 4a of the plate 4 is pressed by the elastic repulsive force P, the allowance dimension of the tip 3d of the linear portion 3c of the terminal 3 can be managed with high accuracy.

  That is, since the stopper 3e is in contact with the alignment plate 4, the protrusion allowance of the tip 3d of the terminal 3 toward the substrate does not increase, and the stopper 3e presses the alignment plate 4 with an elastic repulsive force P. Therefore, the allowance dimension of the tip 3d of the terminal 3 toward the substrate is not reduced, and the allowance dimension is accurately managed within the appropriate tolerance. Therefore, for example, the protrusion allowance of the tip 3d of the terminal 3 toward the board is larger than the appropriate range, so that the tip 3d of the terminal 3 can contact other parts on the lower surface side of the board after soldering to the board. The area of the solder joint surface between the substrate and the tip 3d of the terminal 3 cannot be secured due to the reduction in the margin and the allowance dimension from the appropriate range, thereby eliminating the possibility of affecting the reliability of the solder connection portion. be able to.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

DESCRIPTION OF SYMBOLS 1 Connector housing 1b Bottom face 2 Rear wall of connector housing 3 Terminal 3b Rear end side 3c Straight line part 3d Front end 3e Stopper 4 Alignment plate 4a Terminal insertion hole 100 Substrate X Front-rear direction of connector housing Y Left-right direction of connector housing Z Vertical direction of connector housing Direction (direction perpendicular to the board)
L Position of legitimate allowance dimensions

Claims (1)

A connector housing fixed to the upper surface of the board with the bottom surface facing;
The connector housing is disposed along the front-rear direction of the connector housing, and the rear end side of the connector housing protrudes linearly outward from the rear wall of the connector housing, and then bends in an L shape toward the board. A terminal where the tip of the linear portion extending toward the substrate is soldered to the substrate;
The tip of the straight portion of the terminal that is fixed to the rear portion of the connector housing and extends toward the board is inserted into its own terminal insertion hole, so that the tip of the straight portion of the terminal extends along the upper surface of the board. In a board connector comprising an alignment plate for positioning on a plane,
When the rear end side of the terminal protruding outward from the rear wall of the connector housing is bent in an L shape so as to face the board, the front end of the linear portion protrudes more than the position of the normal protruding dimension. A stopper that abuts against the periphery of the terminal insertion hole of the alignment plate is provided at a position in front of the tip of the linear portion that extends toward the substrate after bending, and the terminal is inserted into the terminal insertion hole of the alignment plate. A board connector characterized in that a tip of a straight line portion is inserted, and the stopper is pressed against the periphery of a terminal insertion hole of an alignment plate by its own elastic repulsive force for positioning.

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