JP2015204186A - terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal having a stabilized connection structure.SOLUTION: An elastic flexure 2 is provided with an indent 4 projecting to the opposite contact part 3 side, and on the elastic flexure 2 side of the opposite contact part 3, a front protrusion 5 is provided in the upstream of the position of the indent 4 in the inserting direction of the tab 11 of a mating terminal, and a rear protrusion 6 is provided in the downstream of the position of the indent 4, respectively. The interval of the front protrusion 5 and rear protrusion 6 has a dimension d which allows entry of the tab 11 of a mating terminal, and on the surface of the elastic flexure 2 of the opposite contact part 3, a dent surface 7 is formed between the front protrusion 5 and rear protrusion 6.

Description

  The present invention relates to a terminal, and more particularly to a terminal having a stable connection structure.

  Conventionally, as shown in FIG. 11, it has a box part into which a mating terminal is inserted, an elastic bending part arranged inside the box part, and an opposing contact part arranged on the opposite side of the elastic bending part. Indent portions 23 and 16a projecting toward each other are provided at opposing positions of the elastic bending portion and the opposing contact portion, respectively. See US Pat.

  Further, referring to Patent Document 2 (three-point contact), as shown in FIG. 12, the first contacts A <b> 10 and A <b> 20 protrude from the plate portion (bottom plate) 80. Accordingly, the protruding female terminal 100 itself is increased in the height direction.

JP 2000-150041 A JP 2006-63961 A

  When inserting the tab portion of the mating terminal, it is necessary to insert the elastic bent portion by bending the elastic bent portion. On the other hand, at the insertion completion position, the bending return force of the elastic bending portion is the contact load. Therefore, insertion with a low insertion force cannot be performed in the terminal insertion process, and a strong contact load cannot be obtained at the insertion completion position. In addition, since the contact is made at two indented portions, the contact state is not stable, so that the contact resistance is unstable and the vibration resistance is poor.

  Furthermore, it is necessary to reduce the insertion force in the male tab insertion (connector fitting) process without increasing the height, and to create a connector terminal with stable contact.

  Therefore, the terminal can be inserted with a low insertion force in the process of inserting the terminal while suppressing the height, a strong contact load can be obtained at the insertion completion position, and the contact state is stable, the contact resistance is stabilized, and the terminal has good vibration resistance. The purpose is to provide.

  The present invention is for solving the above-mentioned problems, and the invention according to claim 1 is directed to a box part into which a mating terminal is inserted, an elastic bending part disposed inside the box part, and the elastic bending. A tab portion of a mating terminal inserted between the elastic deflecting portion and the opposing contact portion is inserted by the deformation of the elastic deflecting portion, and the tab. In the terminal where the portion contacts the bending return force of the elastic bending portion as a contact load, the elastic bending portion is provided with an indent portion protruding toward the opposing contact portion, and the elastic bending portion side of the opposing contact portion. Are provided with a front protrusion upstream from the position of the indent, and a rear protrusion downstream from the position of the indent, with respect to the insertion direction of the tab portion of the mating terminal, and the front protrusion. Part and the rearward protruding part The gap is formed to have a dimension d into which the tab portion of the mating terminal can enter, and a recess is formed on the surface of the elastic deflection portion of the opposed contact portion and between the front protrusion portion and the rear protrusion portion. Terminal formed on the surface.

  The invention according to claim 2 is a terminal in which a portion of the recessed surface connected to the rearward projecting portion is a curved surface.

  The invention according to claim 3 is a terminal in which a portion of the recessed surface connected to the rearward projecting portion is a tapered surface.

  According to the present invention, in the process of inserting the tab portion of the mating terminal into the box portion, the tip of the tab portion can be inserted into the back while entering the space on the recessed surface side, and the deformation state of the elastic bending portion is minimized. In the insertion completion position, the tab portion is brought into contact with the indent portion, the front projecting portion, and the rear projecting portion. As described above, the terminal insertion process can be inserted with a low insertion force, a strong contact load can be obtained at the insertion completion position, and the contact state is stabilized, the contact resistance is stabilized, and the vibration resistance is good.

It is explanatory drawing explaining a terminal. It is explanatory drawing explaining a housing structure. It is explanatory drawing explaining the structure of the box part of a terminal. It is a figure which shows a comparative example. It is explanatory drawing explaining insertion of the tab to a terminal. FIG. 6 is an enlarged view of a part of FIG. 5. It is explanatory drawing explaining 2nd Example. FIG. 8 is an enlarged view of a part of FIG. 7. It is explanatory drawing explaining insertion of the tab to a terminal. It is a figure which shows a comparative example. It is a prior art explaining a prior art. It is a prior art explaining a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Reference is made to FIG. 1 (first embodiment). A terminal for securing a stable contact includes a box portion 1 and a rubber plug 1A for securing a sealing property of an electric wire. Please refer to FIG. This is a housing 1B for securing insulation from the outside.

  Please refer to FIG. A box part 1 into which a mating terminal is inserted; an elastic deflecting part 2 arranged inside the box part 1; and an opposing contact part 3 arranged on the opposite side of the elastic deflecting part 2; The tab portion 11 of the mating terminal inserted between the bending portion 2 and the opposing contact portion 3 is inserted by the bending deformation of the elastic bending portion 2, and the tab portion 11 contacts the bending return force of the elastic bending portion 2. It is a terminal that contacts as a load.

  The elastic deflecting portion 2 is provided with an indent portion 4 that protrudes toward the opposing contact portion 3, and on the elastic deflecting portion 2 side of the opposing contact portion 3, the tab portion 11 of the mating terminal is provided. A front protrusion 5 is provided upstream from the position of the indent 4 in the insertion direction, a rear protrusion 6 is provided downstream from the position of the indent 4, and the front protrusion 5 and the rear protrusion are provided. 6 is formed to have a dimension d into which the tab portion of the mating terminal can enter, and the surface of the opposing contact portion 3 on the elastic deflecting portion 2 side, and the front protrusion 5 and the rear protrusion. The space between the portions 6 is formed on the recessed surface 7. The front projecting portion 5 and the rear projecting portion 6 on the front and rear sides of the recessed surface 7 are contact portions.

  Reference is made to the comparative example of FIG. Unlike the present invention, the opposed contact portion 13 is formed flat.

  Please refer to FIG. 5 and FIG. The recessed surface 7 connected to the rearward projecting portion 6 is a curved surface 7a. That is, the recessed surface 7 has a concave curved shape, and the vicinity of the contact portion has an R shape and is continuous in a curved surface. This curved surface is formed by stamping. As a result, the tab portion 11 can be inserted smoothly, and can be inserted without being caught with the edge of the tab portion 11, thereby preventing plating peeling and ensuring the reliability of electrical conduction.

  With reference to FIG. 9, the operation of inserting the tab portion 11 of the mating terminal along the curved surface 7a will be described. Although a pressing force is applied to the elastic deflecting portion 2 when the male and female connectors are fitted, the distal end side of the tab portion 11 escapes into the space of the recessed surface 7, so that the fitting force is reduced during the insertion process.

  Reference is made to the comparative example of FIG. In contrast to FIG. 9, a pressing force is applied to the elastic bending portion 2 when the male and female connectors are fitted. However, since it is a flat surface, the fitting force does not change during the insertion process.

  7 and 8 are referred to (second embodiment). A portion of the recessed surface 7 connected to the rear protrusion 6a is a tapered surface 7b. The tapered surface 7b is formed by stamping. In the terminal insertion process, when the tip of the tab portion 11 of the mating terminal is inserted while sliding on the recessed surface, the tip of the tab portion 11 is guided while sliding on the tapered surface 7 b of the recessed surface 7. It smoothly gets over to the insertion completion position without striking the protrusion 6a. As a result, the tab portion 11 can be inserted smoothly.

  The present invention is not limited to the embodiments of the invention described above, and can be implemented in other modes by making appropriate modifications.

DESCRIPTION OF SYMBOLS 1 Box part 2 Elastic bending part 3 Opposing contact part 4 Indent part 5 Front protrusion part 6 Back protrusion part 7 Recessed surface 7a Curved surface 7b Tapered surface

Claims (3)

A box part into which the mating terminal is inserted; an elastic deflecting part arranged inside the box part; and an opposing contact part arranged on the opposite side of the elastic deflecting part. In the terminal where the tab portion of the mating terminal inserted between the contact portions is inserted by the bending deformation of the elastic bending portion, and the tab portion contacts the bending return force of the elastic bending portion as a contact load,
The elastic bending portion is provided with an indent portion that protrudes toward the opposing contact portion, and the elastic bending portion side of the opposing contact portion has an indent portion of the mating terminal with respect to the insertion direction of the tab portion. A front protrusion is provided upstream from the position, a rear protrusion is provided downstream from the position of the indent, and the tab portion of the mating terminal can enter the gap between the front protrusion and the rear protrusion. A terminal having a size and a recess surface formed between the front protruding portion and the rear protruding portion on the surface of the elastic deflection portion of the opposed contact portion.   The terminal according to claim 1, wherein the recessed surface portion connected to the rearward projecting portion is a curved surface.   The terminal according to claim 1, wherein the recessed surface portion connected to the rearward projecting portion is a tapered surface.

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