JP4100280B2 - Terminal fitting - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal fitting.
[0002]
[Prior art]
Some terminal fittings are attached to a connector housing of a board connector as shown in Patent Document 1 below. The terminal fitting includes a terminal body having a rectangular plate shape and a board mounting portion extending substantially at right angles from the rear end edge of the terminal body. The terminal body is held by the connector housing, and the board mounting portion protrudes from the connector housing to the outside. The board mounting portion is composed of a plurality of insertion pins branched in a comb shape. When the connector housing is fixed to the circuit board, each insertion pin is individually inserted into a through hole provided in the circuit board. The inserted insertion pin is integrally connected to the circuit on the circuit board by soldering. To manufacture the terminal fitting, the insertion pins are formed side by side by punching a conductive metal plate, and the base end portion of each insertion pin is bent substantially at a right angle to the plane direction of the terminal body.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-106696 [0004]
[Problems to be solved by the invention]
Between the insertion pins adjacent to each other after punching the conductive metal plate, an elongated strip-shaped piece (a comparative example of the embodiment of the present invention is shown in FIG. Will remain). However, since the residual strip is discarded without being secondarily used, there is a concern that the molding material is wasted correspondingly and the cost is increased.
The present invention has been completed based on the above circumstances, and an object thereof is to eliminate waste of molding material.
[0005]
[Means for Solving the Problems]
As a means for achieving the above object, the invention of claim 1 is a terminal fitting formed by punching and bending a conductive metal plate, and a first contact formed by a pair of blade pieces projecting in the width direction. And a second contact portion projecting in the length direction from the end edge in the length direction of the first contact portion with a width dimension narrower than the width dimension of the end edge. It is bent in a direction intersecting the plane direction of the first contact portion through a connecting plate provided at a midway position in the length direction, protrudes from the end edge of the first contact portion, and the first contact portion and the A projecting portion positioned between the connecting plate and a plurality of legs positioned on the tip side of the connecting plate, and when the conductive metal plate is punched, the second contact portion is , is arranged to fit within the width of said end edge of said first contact portion, and wherein The portions extend in a folded shape from the connecting plate to the first contact portion side, and are alternately arranged in the width direction with the protruding portions, and on both sides in the width direction of the second contact portion, It is characterized in that the legs are arranged so as to face each other.
[0007]
[Action and effect of the invention]
<Invention of Claim 1>
When the conductive metal plate is punched out, the second contact portion is folded back in the width direction from the connecting plate to the first contact portion side so as to be within the width dimension of the edge of the first contact portion. The space on both sides of the second contact portion is effectively used after the metal plate is punched, and it is not necessary to separately secure a material for forming a portion of the second contact portion on the tip side of the connecting plate . As a result, waste of the molding material can be eliminated.
Moreover, each leg part can be guide | induced to a predetermined attitude | position with bending deformation of a connection board, and shaping | molding becomes easy.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
<First Embodiment>
A first embodiment of the present invention will be described with reference to FIGS. In the following description, the left side of FIGS.
As shown in FIGS. 6 and 7, the terminal fitting 10 of this embodiment is attached to a connector housing 51 of a board connector 50, and the connector housing 51 has two hoods having a substantially rectangular tube shape. The parts 52 are juxtaposed in the horizontal direction, and mating connectors (not shown) can be fitted to the hood parts 52.
[0010]
As shown in FIG. 1, the terminal fitting 10 is formed into a substantially L shape as a whole by punching a conductive metal plate into a predetermined shape and bending it, and a first contact portion 11 having a rectangular flat plate shape and the first contact portion 11. And a second contact portion 12 protruding in the length direction from the rear end edge of the contact portion 11 with a width dimension narrower than the width dimension.
[0011]
The first contact portion 11 is entirely held through the connector housing 51 by press fitting or the like, and its front end portion protrudes into the hood portion 52 so that it can be fitted to a mating terminal fitting (not shown). Chamfers 11A are formed on the upper and lower surfaces of the tip of the first contact portion 11 so that the connector housing 51 can be easily inserted. In addition, a pair of wing pieces 11 </ b> B are formed in the rear end portion of the first contact portion 11 so as to project in the width direction, thereby restricting the forward movement of the terminal fitting 10 in the connector housing 51.
[0012]
A plurality of second contact portions 12 extend in the length direction from the midway position in the width direction of the rear end edge of the first contact portion 11 along the planar direction of the first contact portion 11 (in the case of the illustrated embodiment). Two) projecting portions 13, a connecting plate 14 that crosses each projecting portion 13 in the direction of alignment along the plane direction of the first contact portion 11 at the rear end edge of each projecting portion 13, and from the connecting plate 14 It is composed of a plurality of (three in the illustrated embodiment) leg portions 15 extending in a direction substantially perpendicular to the planar direction of the first contact portion 11. The protrusions 13 and the leg portions 15 are alternately arranged along the length direction of the connecting plate 14.
[0013]
When the terminal fitting 10 is attached to the connector housing 51, the second contact portion 12 protrudes rearward from the rear end surface of the connector housing 51 and is exposed to the outside. Each leg portion 15 is individually inserted into a through hole formed in a circuit board (not shown) and fixed to the circuit board by soldering or the like, and is connected to a circuit on the circuit board. Yes. Thus, the contact reliability in a connection part is aimed at by providing a plurality of connection places to one terminal metal fitting 10. A chamfer 15 </ b> A for guiding the insertion into the through hole is formed on the outer periphery of the distal end portion of each leg portion 15.
[0014]
By the way, the width dimension of each protrusion part 13 is made larger than the width dimension of each leg part 15, and the rigidity of each protrusion part 13 is ensured. In addition, the gap between adjacent ones of the leg portions 15 is slightly larger than the width dimension of the projections 13 so that the projections 13 are arranged in the gaps. And the length dimension of the connection board 14 is made substantially the same as the width dimension of the part except the blade piece 11B among the rear-end edges of the 1st contact part 11. FIG.
[0015]
In order to manufacture the terminal fitting 10 of this embodiment, first, a conductive metal plate is punched to form a terminal element piece 10A shown in FIG. The second contact portion 12 of the terminal piece 10A includes a plurality of (two in the illustrated embodiment) protruding portions 13 protruding rearward from the rear end edge in the length direction of the first contact portion 11, A connecting plate 14 that crosses the rear end edge of each protruding portion 13 in the arrangement direction, and is extended in a folded shape from the connecting plate 14 toward the first contact portion 11 side so that each protruding portion 13 and the width direction alternate. The leg portions 15 are arranged side by side (three in the illustrated embodiment), and these are within the width dimension of the rear edge of the first contact portion 11.
[0016]
Here, the shaded portions in FIGS. 4A and 4B indicate portions of the conductive metal plate that are discarded after punching. As is clear from this, in the case of the present embodiment (shaded portion in FIG. 4A), the discarded portion is smaller than in the comparative example (shaded portion in FIG. 4B). You can see that it is done. In the case of this embodiment, each leg portion 15 extends in a folded shape from the connecting plate 14 toward the first contact portion side, so that each leg portion 15 is coaxially rearward with the projecting portion 12. Compared with the comparative example extended to, it is not necessary to use the material corresponding to the distance D in FIG.
[0017]
Thereafter, the terminal element 10 </ b> A is guided to the terminal fitting 10 by each leg portion 15 being displaced from the horizontal posture to the vertical posture while the connecting plate 14 is bent and deformed. Since each leg part 15 is mutually connected via the connection board 14, when the one leg part 15 is displaced, the remainder will follow and will be displaced and shaping | molding will become easy. The connecting plate 14 is slightly lifted upward along with the bending deformation.
[0018]
Next, the operation of this embodiment will be described. First, the second contact portion 12 is bent from the connecting plate 14 in a direction substantially orthogonal to the planar direction of the first contact portion 11 before and after the attachment of the terminal fitting 10 to the connector housing 51. Subsequently, the connector housing 51 is fixed at a predetermined position on the circuit board, and the respective leg portions 15 are individually inserted into the corresponding through holes. And each leg part 15 is soldered to a circuit board, and the circuit of a circuit board and the 2nd contact part 12 side of the terminal metal fitting 10 are connected. When this connection is completed, the mating connector housing is fitted into the connector housing 51, and the mating terminal metal fitting and the first contact portion 11 side of the terminal metal fitting 10 are connected so that energization is possible.
[0019]
As described above, in the present embodiment, when the conductive metal plate is punched out, the first contact point is removed from the connecting plate 14 so that the second contact portion 12 is within the width of the rear edge of the first contact portion 11. Since it is in a state of being folded back in the width direction to the contact portion 11 side, the space on both sides of the second contact portion 12 is effectively utilized after punching out the conductive metal plate, and the connecting plate of the second contact portion 12 is used. Therefore, it is not necessary to secure a separate material for forming a portion on the tip side from 14, and waste of the molding material can be eliminated.
[0020]
Second Embodiment
FIG. 8 shows a terminal element piece 10C according to the second embodiment of the present invention. The terminal fitting 10B of the second embodiment includes a first contact portion 11 that is formed narrower than the first embodiment, and from a substantially central position in the width direction at the rear edge of the first contact portion 11. A second contact portion 12 protruding in the length direction is provided.
[0021]
The second contact portion 12 in the terminal element piece 10C of the second embodiment includes one protruding portion 13, a connecting plate 14 extending in the width direction at the rear edge, and both ends of the connecting plate 14. It consists of the two leg parts 15 extended substantially parallel to the protrusion part 13 toward the 1st contact part 11 side, and these are settled in the width dimension of the rear-end edge of the 1st contact part 11. FIG. The terminal fitting 10B is formed by displacing each leg 15 in a horizontal posture in the terminal piece 10C to a vertical posture. Then, as shown in FIG. 7, the terminal fitting 10B is attached to the connector housing 51 of the same board connector 50 as in the first embodiment, and the board connector 50 is hybridized.
[0022]
<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.
[0023]
(1) In the present invention, it is sufficient that the second contact portion is bent in a direction intersecting the plane direction of the first contact portion in the middle of its length direction, and is not necessarily substantially orthogonal to the plane direction of the first contact portion. You don't have to.
[0024]
( 2 ) In the present invention, the present invention can be applied to other relay terminals and bus bars as well as those attached to the connector housing of the board connector.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a terminal fitting according to a first embodiment of the present invention. FIG. 2 is a side view. FIG. 3 is a rear view. FIG. 4A is a plan view showing a state when a conductive metal plate is punched. FIG. 5B is a plan view showing a comparative example. FIG. 5A is a perspective view showing a terminal piece. FIG. 6B is a perspective view showing a comparative example. FIG. 6 is a cross-sectional view of a connector housing of a board connector. Front view [FIG. 8] Plan view showing a terminal element piece according to the second embodiment of the present invention [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10, 10B ... Terminal metal fitting 11 ... 1st contact part 12 ... 2nd contact part 14 ... Connecting plate 15 ... Leg part 50 ... Board | substrate connector 51 ... Connector housing

Claims (1)

A terminal fitting made by punching and bending a conductive metal plate,
A first contact portion formed by projecting a pair of blade pieces in the width direction, and projecting in the length direction from the end edge in the length direction of the first contact portion with a width dimension narrower than the width dimension of the end edge A second contact portion,
The second contact portion is bent in a direction intersecting with the plane direction of the first contact portion via a connecting plate provided in the middle of the length direction, and protrudes from the edge of the first contact portion. A projecting portion located between the first contact portion of the lever and the connecting plate, and a plurality of legs located on the tip side from the connecting plate;
When the conductive metal plate is punched, the second contact portion is disposed so as to be within the width dimension of the edge of the first contact portion, and the leg portion is separated from the connecting plate. By extending in a folded shape toward the first contact portion side, the protrusions and the row portions are alternately arranged in the width direction, and the leg portions are arranged on both sides in the width direction of the second contact portion so as to face both the blade pieces. pin fitting you being arranged.

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