JP5678850B2 - Male terminal bracket - Google Patents

Male terminal bracket Download PDF

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Publication number
JP5678850B2
JP5678850B2 JP2011204310A JP2011204310A JP5678850B2 JP 5678850 B2 JP5678850 B2 JP 5678850B2 JP 2011204310 A JP2011204310 A JP 2011204310A JP 2011204310 A JP2011204310 A JP 2011204310A JP 5678850 B2 JP5678850 B2 JP 5678850B2
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Japan
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plate
edge
tab
rising
free
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JP2013065500A (en
Inventor
水谷 嘉宏
水谷  嘉宏
修 平林
修 平林
大輔 平澤
大輔 平澤
野呂 豊
豊 野呂
岡本 道明
道明 岡本
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住友電装株式会社
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Description

  The present invention relates to a male terminal fitting fixed to a terminal for connection of electric wires.

  The male terminal fitting is formed by pressing a metal plate excellent in conductivity, and a barrel fixed to the end of the electric wire is provided behind the main body portion, while the female terminal fitting of the other end is provided on the front surface of the main body portion. The tab portion to be fitted and connected has a protruding shape. More specifically, the mating female terminal fitting is provided with a connecting tube portion having an elastic contact piece inside, and the tab portion of the male terminal fitting is inserted into the connecting tube portion of the female terminal fitting. The portion is elastically sandwiched between the elastic contact piece and the opposite wall surface so that an electrical connection is established. Here, the tab portion of the male terminal fitting is required to have a predetermined thickness in order to ensure contact pressure. On the other hand, considering the ease of pressing, etc., the metal plate as the material The reason is that a relatively thin one is good.

Therefore, conventionally, in Patent Document 1 below, a band-shaped portion is provided on a part of a terminal material made of a relatively thin metal plate, and a tab portion having a flat rectangular tube shape is formed by bending the band-shaped portion in the width direction. An example is described.
As a first example, one side edge side of the belt-like portion is folded in a U shape, and the folded end is bent at a right angle and applied to the other side edge of the belt-like portion to form a flat rectangular tube shape. In addition, it has strength against crushing deformation.
As a second example, the both side edges of the belt-shaped portion are formed into a flat rectangular tube shape so as to face each other at the center of the upper surface, and the reinforcing walls are bent at right angles to the both side edges so that the both reinforcing walls face the lower surface. By applying, it has strength against crushing deformation.

Japanese Patent No. 3480708

By the way, since the tab portion of this type of male terminal fitting has an elongated shape, a bending stress in the thickness direction is generated particularly on the base end of the tab portion when a foreign object hits the tip of the tab portion. However, since the tab portion of the first example has a cross-sectional shape in which the height of one of the side plates constituting the rectangular tube is lowered, there is a hate that the bending strength is insufficient.
On the other hand, in the tab portion of the second example, the bending strength is secured, but the upper surface of the tab portion that contacts the elastic locking piece or the opposing wall in the mating female terminal fitting is not a flat surface but in the middle of the width direction. Since the surface is divided by the above, it may not be preferable when considering the contact mode with the mating member due to the possibility of forming a step.
The present invention has been completed based on the above circumstances, and its purpose is to reinforce the proximal end side of the tab portion while ensuring the contact pressure between the tab portion and the mating female terminal fitting. The present invention is to provide a male terminal fitting that can prevent bending and deformation of the lever.

The present invention is a male terminal fitting in which a tab portion to be fitted and connected to a mating female terminal fitting is formed by bending a band-like portion provided in a part of a terminal material made of a metal plate in the width direction. The tab portion includes a substrate, one side plate extending in a height direction perpendicular to the width direction from one side edge of the substrate and formed to rise at a right angle, and the width from the rising end of the one side plate. And a counter plate that is bent so as to be folded in a parallel posture with a predetermined interval with respect to the substrate, and is formed to rise from the other side edge of the substrate in the height direction at a right angle. And is formed in a flat rectangular tube shape with the other side plate having the rising end directed in the height direction, and on the base end side of the tab portion, the free side edge of the counter plate is Hand on the other side edge of the substrate While the rising end of the other side plate formed on the other side edge of the substrate is formed in a cross-sectional shape that extends to the front of the free side edge of the counter plate, On the distal end side of the tab portion, the free side edge of the counter plate protrudes to the position of the other side edge of the substrate, and the other side plate of the other side plate formed to rise to the other side edge of the substrate. The rising edge has a cross-sectional shape in contact with the side edge on the free side to receive the side edge on the free side of the counter plate, and the rising edge of the other side plate on the base end side of the tab portion And the rear end of the free end edge of the opposing plate on the front end side of the tab portion are arranged to face each other.

On the base end side of the tab portion, the height of the side plate on the side surface formed by abutting the both side edges of the band-shaped portion in the square tube can be increased, so that the section modulus is increased and the strength against bending is increased. On the other hand, at the front end side of the tab portion to be fitted and connected to the mating female terminal fitting, the opposing plate is a flat surface and the free side edge of the opposing plate is received by the other side plate, Crushing deformation of the cylinder is also prevented.
After securing the contact pressure with the mating female terminal fitting, the proximal end side of the tab portion can be strengthened to prevent its bending deformation.

The following configuration may also be used.
(1) Between the front edge of the rising edge of the other side plate on the base end side of the tab portion and the rear edge of the rising edge of the other side plate on the distal end side of the tab portion, and of the tab portion The front edge of the free end of the opposing plate on the base end side and the rear edge of the free end of the opposing plate on the distal end side of the tab portion are connected via a tapered edge. The front edge on the base end side in the tab portion and the rear edge on the front end side are smoothly connected without any step, and stress concentration at the connecting portion is avoided, which is effective for preventing damage.

  (2) At the free side edge of the counter plate at the tip end side of the tab portion, the surface with which the rising edge of the other side plate abuts is struck and thinned. While having the structure of receiving the counter plate, the other side plate can be made larger in height, which is effective in increasing the bending strength.

  (3) In a region outside the fitting region with the mating female terminal metal fitting on the base end side of the tab portion, the rising end of the other side plate formed rising on the other side edge of the substrate is Projects to a position beyond the opposing plate. Further enhancement of the proximal end side of the tab portion can be achieved without hindering the fitting with the mating female terminal fitting.

  According to the male terminal fitting of the present invention, the contact pressure between the tab portion and the mating female terminal fitting can be ensured, and the proximal end side of the tab portion can be strengthened to prevent its bending deformation.

The perspective view of the male terminal metal fitting which concerns on Embodiment 1 of this invention. Plan view showing the unfolded shape of the male terminal fitting Plan view after assembly 1 is a perspective sectional view taken along line AA in FIG. Cross section of the front view 1 is a cross-sectional perspective view taken along line BB in FIG. Cross section of the front view Sectional drawing of front view cut | disconnected by the base end of the tab part which concerns on Embodiment 2 of this invention

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
The male terminal fitting M of this embodiment is formed by pressing a metal plate having excellent conductivity. As shown in FIG. 1, a wire barrel 11 and an insulation barrel 12 are provided behind the main body 10. And a tab portion 20 is formed on the front surface of the main body portion 10 so as to protrude through a tapered connection portion 14.
More specifically, the unfolded terminal material 15 shown in FIG. 2 is cut and formed while the metal plate hoop material is transported through the pressing process, and the terminal material 15 is bent a plurality of times. By being applied, the male terminal fitting M shown in FIGS. 1 and 3 is assembled and formed.

The main body portion 10 is formed in a box shape with an open rear surface that fits almost tightly into a cavity of a connector housing (not shown), and a front connection portion 14 is formed as the main body portion 10 is bent. .
The wire barrel 11 is caulked and crimped to the end of a core wire in an electric wire (not shown), and a pair of barrel pieces 11A are formed to rise from both side edges of the bottom plate. A plurality of serrations 13 are formed on the inner surface of the wire barrel 11.
The insulation barrel 12 is caulked and crimped to the end of the insulation coating of the electric wire, and a pair of barrel pieces 12A and 12B are formed to rise from the both sides of the bottom plate while shifting their positions back and forth.

Next, the structure of the tab portion 20 will be described in detail.
In the developed terminal material 15 shown in FIG. 2, a band-like portion 16 constituting the tab portion 20 is formed at the tip of the portion constituting the connecting portion 14 on the front surface of the main body portion 10. The belt-like portion 16 is roughly formed with a right side plate 21, a lower side plate 22, a left side plate 23, and an upper side plate 24 arranged in order from the right end of the front view in the width direction. Then, the left side plate 23 is formed at a right angle from the left side edge of the lower surface plate 22 in the belt-like portion 16, and the upper surface plate 24 is bent at a right angle from the upper edge of the left side plate 23 toward the right side when viewed from the front. The right side plate 21 is formed at a right angle from the right side edge of the lower surface plate 22 to form a flat rectangular tube shape.
A trapezoidal guide plate 25 is connected to the tips of the lower surface plate 22 and the upper surface plate 24, and the guide plates 25 are opposed to each other and the leading edges thereof are in contact with each other as a result of the bending. The tapered guide part 26 is formed by being bent as described above.

When the tab portion 20 is fitted to a female terminal fitting (not shown), the tab portion 20 is inserted into a connecting tube portion provided on the female terminal fitting, and the tip side of the tab portion 20 is provided in the connecting tube portion. The elastic contact piece is elastically sandwiched between the opposing ceiling wall, so that an electrical connection is obtained.
As shown in FIG. 7, two left and right contact portions 31 extending in the front-rear direction are formed to project from the ceiling wall 30 of the connecting tube portion of the female terminal fitting.

By the way, the tab portion 20, specifically, the flat rectangular tube portion excluding the distal end guide portion 26, the rear side of the substantially one third region is the base end portion 20 </ b> A and the remaining substantially A 2/3 region is the tip portion 20B, and each has a different cross-sectional shape.
Regarding the right side plate 21, the right side plate 21A of the base end portion 20A is formed to have the same height as the left side plate 23, while the right side plate 21B of the distal end portion 20B is more than the right side plate 21A of the base end portion 20A. Is formed to a dimension that is lower by a predetermined dimension (about 80% of the plate thickness). The front end of the free end edge (rising end edge) of the right side plate 21A in the base end part 20A and the rear end of the free end edge (rising end edge) of the right side plate 21A in the front end part 20B are tapered edges that are first lowered. 27.

Regarding the upper surface plate 24, the upper surface plate 24 </ b> A of the base end portion 20 </ b> A is formed with a width smaller than the width of the lower surface plate 22, while the upper surface plate 24 </ b> B of the distal end portion 20 </ b> B is formed with the same width as the width of the lower surface plate 22. Has been. However, in the upper surface plate 24B of the distal end portion 20B, the predetermined width region of the back surface 28 (the surface facing the lower surface plate 22) of the free edge is struck to be thin (about 80% of the plate thickness).
The front end of the free end edge of the upper surface plate 24A in the base end portion 20A and the rear end of the free end edge of the upper surface plate 24B in the distal end portion 20B are similarly connected by a tapered edge 29.

The operation of this embodiment will be described.
When the tab material 20 is formed by bending the terminal material 15 having the developed shape as described above, the tab portion 20 as a whole is formed so as to rise perpendicularly from the lower surface plate 22 and the left edge of the lower surface plate 22. The left side plate 23, the top plate 24 bent so as to be folded in a parallel posture with a predetermined interval from the rising edge of the left side plate 23, and the right side edge of the bottom plate 22 The right side plate 21 is formed in a flat rectangular tube shape.

Here, in the base end portion 20A of the tab portion 20, as shown in FIGS. 4 and 5, the free end edge (right side edge) of the upper surface plate 24A is located at the left position in front of the right side edge of the lower surface plate 22. A cross-sectional shape in which the rising edge of the right side plate 21A staying and formed on the right side edge of the lower surface plate 22 passes through the front of the end surface of the right side edge of the upper surface plate 24A and reaches the upper surface position of the right side edge; It has become.
On the other hand, at the tip 20B of the tab portion 20, as shown in FIGS. 6 and 7, the free edge (right edge) of the upper surface plate 24B protrudes to the position of the right edge of the lower surface plate 22, and the lower surface plate 22 The rising edge of the right side plate 21B formed at the right side edge of the upper surface 24B is applied to the thinned back surface 28 at the right side edge of the upper surface plate 24B.

  According to the tab portion 20 of the male terminal fitting M assembled in the shape as described above, at the base end portion 20A, the right side plate is formed on the right side surface formed by abutting both side edges of the band-like portion 16 in the rectangular tube. By being able to earn a height of 21A, the section modulus can be increased, and as a result, the strength against bending is increased.

On the other hand, the tip portion 20B of the tab portion 20 is inserted into the connecting tube portion of the mating female terminal fitting as described above, and between the ceiling wall 30 facing the elastic contact piece provided in the connecting tube portion. As shown particularly in FIG. 7, the two strip contact portions 31 that are elastically sandwiched and project from the ceiling wall 30 press both end portions in the width direction of the upper surface plate 24 </ b> B at the distal end portion 20 </ b> B of the tab portion 20. Take the form.
Here, at the tip portion 20B of the tab portion 20, the upper surface plate 24B facing the ceiling wall 30 provided with the contact portion 31 is a single flat surface, and the free edge (right edge) of the upper surface plate 24B is the right side plate. By being received by 21B, crushing deformation of the square tube is also prevented.
As a result, after securing the contact pressure with the mating female terminal fitting, it is possible to reinforce the base end portion 20A of the tab portion 20 and prevent its bending deformation.

  Further, in this embodiment, the front plate of the free end edge of the right side plate 21A at the base end portion 20A and the rear end of the free end edge of the right side plate 21B at the tip end portion 20B, and the upper surface plate at the base end portion 20A. The front end of the free end edge of 24A and the rear end of the free end edge of the upper surface plate 24B in the front end portion 20B are both connected by taper edges 27 and 29. Since the front edge of the portion 20A and the rear edge of the tip portion 20B are smoothly connected without any step, stress concentration at the connecting portion is avoided and effective in preventing damage.

  Further, at the free end edge (right side edge) of the upper surface plate 24B at the distal end portion 20B of the tab portion 20, the back surface 28 with which the rising end of the right side plate 21 abuts is hit and thinned. Thereby, while having the structure which received the upper surface board 24B, the height of the right side board 21B can be taken as much as possible, and it becomes effective in raising the bending strength in the front-end | tip part 20B.

<Embodiment 2>
FIG. 8 shows a second embodiment of the present invention.
When the tab portion 20 of the male terminal fitting M1 is inserted into the connecting tube portion of the mating female terminal fitting for electrical connection, the tab portion 20 is actually inserted into the connecting tube portion. 20 only from the front end portion 20B to a predetermined length region on the front end side of the base end portion 20A.
Therefore, in the second embodiment, in the rear end region outside the fitting region with the connecting tube portion of the mating female terminal fitting at the base end portion of the tab portion 20, as shown in FIG. The rising edge of the right side plate 40 rising at the edge is formed in a taller shape that protrudes further upward beyond the upper surface plate 24A.
According to the structure of this Embodiment 2, the further reinforcement | strengthening of 20 A of base end parts of the tab part 20 can be aimed at, without preventing fitting connection with the other party's female terminal metal fitting.

<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) In the above embodiment, the case where the connecting portion of the cross section of the square tube in the case of forming the tab portion by bending the band-shaped portion of the terminal material into the rectangular tube shape is the upper right corner when viewed from the front. The connected portion may be the upper left corner in front view, or the lower left or lower right corner.
(2) The tip portion of the tab portion is a portion that functions so as to be actually fitted and connected to the mating female terminal fitting, and the length of the tip portion and the base end portion having different cross-sectional shapes. The ratio is not limited to that exemplified in the above embodiment, and can be arbitrarily set according to conditions such as the shape of the entire terminal fitting.

(3) In the above embodiment, the back surface of the free edge of the upper surface plate on the tip side of the tab portion is thinned. However, the thinning may be omitted, and such a technique is also applicable to the technology of the present invention. Included in the scope.
(4) In the above-described embodiment, the case where two contact portions are provided in the connection cylinder portion of the mating female terminal fitting is exemplified. However, for example, the width of the contact portion is one such as a wide one. It is good also as a structure of.

M, M1 ... male terminal fitting 15 ... terminal material 16 ... strip-like part 20 ... tab part 20A ... base end part 20B ... tip part 21, 21A, 21B ... right side plate (the other side plate)
22 ... Bottom plate (substrate)
23 ... Left side plate (one side plate)
24, 24A, 24B ... Top plate (opposite plate)
27 ... Taper edge 28 ... Back surface (of the free edge of the upper surface plate 24B) 29 ... Taper edge 40 ... Right side plate (the other side plate)

Claims (4)

  1. A male terminal fitting in which a tab portion to be fitted and connected to a mating female terminal fitting is formed by bending a band-like portion provided in a part of a terminal material made of a metal plate in the width direction,
    The tab portion includes a substrate, one side plate formed in a vertical direction extending in a height direction perpendicular to the width direction from one side edge of the substrate, and the width direction from the rising end of the one side plate. to extend the opposing plate formed bent so as folds in parallel with posture at predetermined intervals with respect to the substrate, is at right angles rising formed to extend in the height direction from the other side edge of said substrate The rising end is formed in a flat rectangular tube shape composed of the other side plate directed in the height direction ,
    On the base end side of the tab portion, the side edge on the free side of the counter plate remains on the near side of the other side edge of the substrate, and the other side edge of the substrate is formed to rise. While the rising edge of the side plate has a cross-sectional shape reaching the front of the free side edge of the counter plate,
    On the distal end side of the tab portion, the free side edge of the counter plate protrudes to the position of the other side edge of the substrate, and the other side plate of the other side plate formed to rise to the other side edge of the substrate. The rising end has a cross-sectional shape in contact with the free side edge to receive the free side edge of the counter plate ,
    The front end of the rising edge of the other side plate on the base end side of the tab portion and the rear end of the free end edge of the counter plate on the distal end side of the tab portion are arranged to face each other. Male terminal fitting.
  2.   Between the leading edge of the rising end of the other side plate on the proximal end side of the tab portion and the trailing edge of the rising end of the other side plate on the distal end side of the tab portion, and the proximal end side of the tab portion The front edge of the free end of the counter plate in the head and the rear edge of the free end of the counter plate on the front end side of the tab portion are respectively connected via a taper edge. Item 1. The male terminal fitting according to Item 1.
  3.   The surface of the free side of the opposing plate on the tip side of the tab portion is thinned by hitting the surface with which the rising edge of the other side plate abuts. 2. The male terminal fitting according to 2.
  4.   In a region outside the fitting region with the mating female terminal fitting on the base end side of the tab portion, the rising end of the other side plate formed rising on the other side edge of the substrate The male terminal fitting according to any one of claims 1 to 3, wherein the male terminal fitting protrudes to a position beyond it.
JP2011204310A 2011-09-20 2011-09-20 Male terminal bracket Active JP5678850B2 (en)

Priority Applications (1)

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JP2011204310A JP5678850B2 (en) 2011-09-20 2011-09-20 Male terminal bracket

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JP2011204310A JP5678850B2 (en) 2011-09-20 2011-09-20 Male terminal bracket
CN201210249540.4A CN103022744B (en) 2011-09-20 2012-07-18 Male terminal accessory

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JP2013065500A JP2013065500A (en) 2013-04-11
JP5678850B2 true JP5678850B2 (en) 2015-03-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014225388A (en) * 2013-05-16 2014-12-04 住友電装株式会社 Male terminal fitting
JP2019040830A (en) * 2017-08-29 2019-03-14 住友電装株式会社 Terminal fitting

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0741098Y2 (en) * 1987-01-07 1995-09-20 矢崎総業株式会社 Connector
JPH0329275A (en) * 1989-06-27 1991-02-07 Nissan Motor Co Ltd Chain terminal
JPH03116572U (en) * 1990-03-12 1991-12-03
JPH0734563U (en) * 1993-12-08 1995-06-23 住友電装株式会社 Male terminal fitting
JP3046731B2 (en) * 1994-11-30 2000-05-29 矢崎総業株式会社 Male terminal and method of manufacturing male terminal
JP3316198B2 (en) * 1999-10-29 2002-08-19 タイコエレクトロニクスアンプ株式会社 Male contact
JP3480708B2 (en) * 2000-03-15 2003-12-22 住友電装株式会社 Male terminal fitting
JP2003036910A (en) * 2001-07-19 2003-02-07 Yazaki Corp Connector terminal
JP3864800B2 (en) * 2002-02-15 2007-01-10 住友電装株式会社 Connectors and male terminal fittings
JP3814221B2 (en) * 2002-04-18 2006-08-23 住友電装株式会社 Male terminal fitting
JP4003577B2 (en) * 2002-08-07 2007-11-07 住友電装株式会社 Male terminal bracket
JP4743109B2 (en) * 2006-12-18 2011-08-10 住友電装株式会社 Terminal fittings and connectors

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CN103022744B (en) 2015-10-28
JP2013065500A (en) 2013-04-11

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