JP6534304B2 - Male terminal - Google Patents

Description

  The present invention relates to a male terminal provided with a tab portion fitted to a female terminal.

  Various types of male terminals having tab portions have been conventionally proposed. As a conventional example of this type of male terminal, there is one shown in FIG. 2 (see Patent Document 1).

  As shown in FIG. 2, the male terminal 100 includes a plate-like tab portion 101 and a wire connection portion 102 which are fitted to the mating female terminal 110. The female terminal 110 includes a terminal connection portion 111 and a wire connection portion 112 which are formed in a substantially cylindrical shape. The terminal connection portion 111 is cylindrical and has an elastic contact piece 118 inside.

  In the above configuration, when the tab portion 101 is inserted into the terminal connection portion 111 of the female terminal 110, the elastic contact piece 118 bends downward, and the bending recovery force of the elastic contact piece 118 is used as a contact load. 111 is electrically connected.

JP 2003-178830 A

  However, in the conventional example, when the male terminal 100 and the female terminal 110 are in the fitting state and the fine sliding occurs between the both terminals, the contact surfaces are rubbed to generate the oxidized wear powder. The generated oxidized wear powder will grow largely by fine sliding. There is a problem that when the large-sized oxidized wear powder is pinched between the contact portions 116 and 119 of the female terminal 110 and the tab portion 101, the electrical resistance between the male terminal 100 and the female terminal 110 increases.

  Then, an object of this invention is to provide the male terminal which can prevent the increase in the electrical resistance resulting from the fine slide between female terminals as much as possible.

The present invention is provided separately from the housing, the distal end tab portion fitted to the female terminal and supported by the housing movably in the terminal fitting / removing direction, and the distal end tab portion separately from the housing The held terminal base portion, a stopper portion for blocking movement of the tip tab portion in the terminal detachment direction, and a flexible conductive member for connecting between the tip tab portion and the terminal base , The stopper portion is integrally provided on the housing .

The front Symbol housing, it is preferable to provide a restriction wall portion for restricting the direction of displacement away from the sliding surface in the orthogonal direction and the housing of the terminal fitting and removing direction of the distal tab portion. It is preferable that the tip tab portion and the terminal base portion be separately provided by dividing in the middle in the longitudinal direction of the tab portion.

  According to the present invention, when the distal end tab portion is fitted to the female terminal and the fine slide occurs with the female terminal, the distal end tab portion integrally slides with the female terminal. Therefore, no rubbing occurs between the end tab portion and the contact surface of the female terminal, and no oxidized wear powder is generated. Therefore, it is possible to prevent an increase in the electrical resistance due to the slight sliding between the female terminals as much as possible.

FIG. 7 shows an embodiment of the present invention and is a cross-sectional view of a male terminal fitted to a female terminal. FIG. 7 shows a conventional example and is a cross-sectional view of a male terminal fitted to a female terminal.

  Hereinafter, an embodiment of the present invention will be described based on the drawings.

  FIG. 1 shows an embodiment of the present invention. The male terminal 1 of the present embodiment is configured of a plate-like tab portion 10 fitted to the mating female terminal 2, a wire connection portion 20 provided on the rear end side of the tab portion 10, and a housing 30. It is done.

  The tab portion 10 is divided into a terminal base portion 11 and a tip tab portion 12 in the middle in the longitudinal direction. The terminal base 11 is integrally formed with the wire connection portion 20 and is held by the housing 30. The end tab portion 12 is fitted to the female terminal 2 and supported by the housing 2 so as to be movable in the terminal fitting / removing direction (directions indicated by arrows X2 and X1 in FIG. 1). The tip tab 12 and the terminal base 11 are connected to each other by a flexible wire (conductive member) 13. The wire 13 is curved so as to straddle a stopper 34 described later of the housing 30, and both ends thereof are connected to the tip tab 12 and the terminal base 11 by the solder 14.

  The wire connection portion 20 has a core crimping portion 23 crimped to the core wire 22 of the electric wire 21 and a wire crimping portion 25 crimped to the covering portion 24 of the electric wire 21.

  The housing 30 includes a base portion 31 extending in the terminal fitting / removing direction, a housing portion 32 provided on the rear end side of the base portion 31 and housing the wire connection portion 20 and the end portion of the electric wire 21; A direction (a direction perpendicular to the sheet of FIG. 1) orthogonal to the terminal fitting / removing direction of the front end tab portion 12 and a direction (arrows in FIG. 1) separated from the sliding surface 31a of the substrate 31 Provided in the middle of the longitudinal direction of the substrate portion 31 with the regulation wall portion 33 for regulating the displacement of the direction shown by Y1), and the movement of the tip tab portion 12 in the terminal detachment direction (direction shown by arrow X1 in FIG. It is integrally formed from the stopper part 34 to block.

  The female terminal 2 has a terminal connection portion 3 formed in a substantially cylindrical shape. The terminal connection portion 3 includes a top plate portion 4, a bottom plate portion 5, and an elastic contact piece 6. The bottom plate portion 5 is formed with a contact surface 5 a that protrudes toward the top plate portion 4 and contacts the lower surface 12 a of the tip tab portion 12. The resilient contact piece 6 is cut and raised inward from the front end of the top plate 4 and protrudes to the rear end side. The elastic contact piece 6 is formed with a contact surface 6 a that faces the contact surface 5 a of the bottom plate 5 and contacts the upper surface 12 b of the tip tab 12.

  In the above configuration, after the electric wire 21 is connected to the electric wire connection portion 20 of the male terminal 1, the terminal base 11 and the electric wire connection portion 20 are inserted into the accommodation portion 32 of the housing 30 from the rear end side. Place it. Thus, the wire connection portion 20 is accommodated in the accommodation portion 32. The terminal base 11 protrudes from the accommodation portion 32 to the front end side and is disposed to the rear end side from the stopper portion 34.

  Next, the front end tab portion 12 is inserted from the front end side into the restriction wall portion 33 of the housing 30 and mounted on the sliding surface 31 a of the substrate portion 31, and the front end tab portion 12 is made to the front end side from the stopper portion 34 Deploy. Next, the terminal base 11 and the end tab portion 12 are connected by the wire 13, and both ends of the wire 13 are soldered by the solder portion 14. Thus, the terminal base portion 11 and the distal end tab portion 12 are electrically connected through the wire 13, and the distal end tab portion 12 is movable in the terminal fitting / removing direction by elastic deformation of the wire 13.

  Since the displacement of the end tab portion 12 in the direction perpendicular to the terminal fitting / removing direction and in the direction away from the sliding surface 31 a of the substrate portion 31 is restricted by the restriction wall portion 33 of the housing 30, It moves in the terminal fitting / removing direction along the sliding surface 31a. Then, when the front end tab portion 12 moves in the terminal fitting direction by a predetermined distance, the rear end abuts against the stopper portion 34, so that further movement of the front end tab portion 12 in the terminal detachment direction is blocked.

  After assembling the male terminal 1 as described above, when the front end tab portion 12 is inserted into the terminal connection portion 3 of the female terminal 2 from the front end side, the contact surfaces 5a and 6a of the terminal connection portion 3 The resilient contact piece 6 bends upward in contact with the lower surface 12 b and the upper surface 12 a. Furthermore, when the leading end tab portion 12 is inserted to the moving end portion, the contact surfaces 5a and 6a of the terminal connection portion 3 are in pressure contact with the lower surface 12b and the upper surface 12a of the tab portion 12 using the bending force of the elastic contact piece 6 as the contact load. Be kept in the state. Thereby, electricity is supplied between the female terminal 2 and the male terminal 1.

  With the female terminal 2 and the male terminal 1 fitted, when the female terminal 2 side and the male terminal 1 side slightly slide, the contact surfaces 5a, 6a of the terminal connection portion 3 are the lower surfaces of the end tab portion 12 Since the front end tab portion 12 slides on the sliding surface 31 a of the housing 30, the front end tab portion 12 integrally slides on the female terminal 2 and finely slides. As a result, rubbing does not occur between the end tab portion 12 and the contact surfaces 5a and 6a of the female terminal 2, and no oxidized wear powder is generated. As mentioned above, the male terminal 1 which can prevent the increase in the electrical resistance resulting from the fine slide between female terminals 2 as much as possible can be provided.

  Since the stopper portion 34 for blocking the movement of the leading end tab portion 12 in the terminal detachment direction is integrally provided on the housing 30, the number of parts is reduced compared to the case where the stopper portion 34 is provided separately from the housing 30 Cost can be kept low.

  Since the position of the leading end tab portion 12 is regulated by the regulating wall portion 33 provided in the housing 30, the leading end tab portion 12 can be smoothly moved in the terminal fitting / removing direction along the sliding surface 31a of the housing 30. it can.

  Since the distal end tab portion 12 and the terminal base portion 11 are separately formed by dividing in the middle in the longitudinal direction of the tab portion 10, the distal end tab portion and the terminal base portion may be formed by diverting the tab portion which is a conventional component. it can.

1 male terminal 2 female terminal 10 tab part 11 terminal base 12 tip tab part 13 wire (conductive member)
30 Housing 31a Sliding surface 33 Regulating wall 34 Stopper

Claims (3)

With the housing,
A distal end tab portion fitted to the female terminal and supported by the housing so as to be movable in the terminal fitting / removing direction;
A terminal base provided separately from the tip tab portion and held by the housing;
A stopper portion for blocking movement of the tip tab portion in the terminal detachment direction;
A flexible conductive member for connecting the tip tab portion and the terminal base ,
The said stopper part was integrally provided in the said housing, The male terminal characterized by the above-mentioned . The male terminal according to claim 1, wherein
A male terminal characterized in that the housing is provided with a control wall portion for restricting displacement of the front end tab portion in a direction perpendicular to the terminal fitting / removing direction and in a direction away from the sliding surface of the housing . The male terminal according to claim 1 or 2, wherein
A male terminal characterized in that the tip tab portion and the terminal base portion are separately formed by dividing in the middle in the longitudinal direction of the tab portion .

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