JP7396841B2 - Female terminal piece and terminal piece pair for connector - Google Patents

Description

The present invention relates to a female terminal piece for a connector and a pair of terminal pieces.

Each male side contact part of a fork-shaped male side terminal piece (female contact) has a pair of male side contact parts facing each other at a distance in a direction perpendicular to the connector insertion/extraction direction as a female side terminal for the connector. A female terminal piece (male contact) is known that includes a pair of male and female contact portions on each outer surface facing in opposite directions so as to be in conductive contact with each other (for example, Patent Document 1).

Utility Model Publication No. 59-17570

The male and female terminal pieces described above ensure the contact pressure between the male and female contact parts only by elastic deformation of the male terminal piece, and the contact pressure between the male and female terminal pieces is If there is a mutual positional shift in the direction perpendicular to the connector insertion/removal direction, there is a risk of a contact failure in which only one side of the pair of male contact portions and the pair of female contact portions are in contact with each other. If it is attempted to provide flexibility for this positional shift, it tends to become difficult to ensure contact pressure between the female side contact portion and the male side contact portion.

The problem to be solved by the present invention is to have high flexibility with respect to mutual misalignment of the male terminal piece and the female terminal piece in a direction perpendicular to the connector insertion/extraction direction, and to provide a pair of male side contact portions. The object of the present invention is to prevent a contact failure in which only one side of a pair of female contact portions contacts, and to ensure necessary contact pressure between the female contact portion and the male contact portion.

A female terminal piece for a connector according to an embodiment of the present invention is a male side terminal for a connector having a pair of male side contact portions (70, 72) facing each other at a distance in a direction orthogonal to the connector insertion/extraction direction. A female connector terminal piece (10) connected to the piece (60), a housing part (12) including a conductor connection part (25) to which a conductor is connected, and a proximal end coupled to the housing part. (14) and a band-shaped spring piece (16) forming a cantilever, the spring piece includes an arm piece part (26) extending from the base end in the connector insertion direction, and an arm piece part (26) extending from the base end in the connector insertion direction. A pair of female side contact parts (30 , 32).

According to this configuration, elastic deformation of the arm pieces provides high flexibility against mutual misalignment in the direction perpendicular to the connector insertion/extraction direction between the male terminal piece and the female terminal piece. A contact failure in which only one side of the side contact portion and the pair of female side contact portions contacts is less likely to occur. Depending on the hook shape, the tip piece can be set to have a higher rigidity than the arm piece, and the necessary contact pressure between the female contact part and the male contact part can be ensured.

In the female terminal piece for a connector, preferably, the arm piece portion includes an inclined portion (26B) extending obliquely with respect to the connector insertion/extraction direction.

According to this configuration, the arm piece portion becomes elongated without increasing the size of the connector female terminal piece.

In the female terminal piece for a connector, preferably, the arm piece portion includes an orthogonal portion (26A) extending orthogonally to the connector insertion/extraction direction, closer to the proximal end than the inclined portion.

According to this configuration, the crank-shaped portion is formed on the base end side of the arm piece, and the arm piece that pivots on the base end side can be easily elastically deformed.

In the female terminal piece for a connector, preferably, the housing portion includes a pair of side walls (20, 22) located on both sides of the spring piece.

According to this configuration, the spring piece is protected from both sides, and the durability of the spring piece is improved.

In the female terminal piece for a connector, preferably, the pair of side walls includes portions extending on both sides of the tip piece so as to correspond to the entire tip piece.

According to this configuration, the tip end portion of the spring piece is reliably protected from both sides, and the durability of the spring piece is improved.

In the female terminal piece for a connector, preferably, the housing portion extends in a direction orthogonal to the connector insertion/removal direction at a predetermined interval on the front side of the tip piece portion in the connector insertion direction, It has a front wall (36) to be received between the male and female contact portions upon insertion of the connector.

According to this configuration, the spring piece is protected from the front, and the durability of the spring piece is improved.

In the female terminal piece for a connector, preferably, the housing portion includes cut and raised pieces (38, 39) surrounded by the tip piece portion at a predetermined interval.

According to this configuration, excessive elastic deformation of the spring piece is suppressed, and the durability of the spring piece is improved.

A terminal piece pair according to one embodiment of the present invention is a terminal piece pair of a male side terminal piece for a connector (60) and a female side terminal piece for a connector (10) that can be inserted into and removed from each other, and the male side terminal piece for a connector is The terminal piece includes a base (64) extending in a direction perpendicular to the connector insertion/extraction direction, and a pair of legs (64) extending from the base in the connector insertion/extraction direction at intervals from each other in the direction perpendicular to the base. 66, 68), the pair of leg portions include a pair of male contact portions (70, 72) facing each other, and the female connector terminal piece is the female connector terminal piece. be.

According to this configuration, elastic deformation of the arm pieces provides high flexibility against mutual misalignment in the direction perpendicular to the connector insertion/extraction direction between the male terminal piece and the female terminal piece. A contact failure in which only one side of the side contact portion and the pair of female side contact portions contacts is less likely to occur. Depending on the hook shape, the tip piece can be set to have a higher rigidity that is different from that of the arm piece, and when the terminal piece is connected, the necessary contact between the female side contact part and the male side contact part is achieved by elastic deformation of the legs and tip piece. Contact pressure can be ensured.

According to the female terminal piece for a connector according to the present invention, there is high flexibility with respect to mutual positional deviation in the direction perpendicular to the connector insertion/extraction direction with the male side terminal piece for a connector, and the pair of male side contact parts and A contact failure in which only one side contacts a pair of female side contact parts is less likely to occur, and the necessary contact pressure between the female side contact parts and the male side contact parts is ensured.

A perspective view of an electrical connector device including a pair of terminal pieces according to the invention A partially sectional perspective view of a female connector including a pair of terminal pieces according to the present invention A perspective view of a female terminal piece for a connector according to this embodiment A partial cross-sectional perspective view of a female terminal piece for a connector according to the present embodiment A vertical cross-sectional view of the female terminal piece for a connector according to this embodiment An explanatory diagram showing the process of connecting a pair of terminal pieces according to the present embodiment

Hereinafter, one embodiment of a terminal piece pair and a female terminal piece for a connector according to the present invention will be described with reference to FIGS. 1 to 6. In this embodiment, the connector insertion/removal direction is defined as the up-down direction, and the front-rear direction and left-right direction are defined as shown in the drawings. Further, the connector insertion direction is upward, and the connector extraction direction is upward.

First, with reference to FIGS. 1 and 2, a female connector 40 into which a female terminal piece 10 for a connector according to the present embodiment (hereinafter referred to as a female terminal piece 10) is assembled and a mating terminal of the female terminal piece 10. The male connector 80 into which the connector male terminal piece 60 (hereinafter referred to as the male terminal piece 60) is incorporated will be described.

The female connector 40 is a cable side connector, and has a rectangular female connector housing 42 made of a resin molded product. The female connector housing 42 holds ten female terminal pieces 10 arranged in two rows, front and rear, and aligned in the left-right direction in each row. An end portion of an insulated cable 50 is connected to each female terminal piece 10 .

The male connector 80 is a connector mounted on a printed wiring board (not shown), and has an upwardly opening box-shaped male connector housing 82 made of a resin molded product. The male connector housing 82 holds ten male terminal pieces 60 in the same arrangement as the female terminal pieces 10 in the female connector housing 42 .

Each male terminal piece 60 is made of metal, and as shown in FIG. 6, extends in a direction (front-back direction) orthogonal to the connector insertion/removal direction (up-down direction), and is a conductive connection portion with a printed wiring board. 62, and a pair of cantilevered first and second leg portions 66 and 68 extending upward (in the connector insertion/removal direction) from the base portion 64 at intervals in the front-rear direction.

A pair of flat surfaces of the first leg portion 66 and the second leg portion 68 that face each other in the front-back direction constitute a pair of a first male contact portion 70 and a second male contact portion 72. The first male contact portion 70 side of the tip of the first leg portion 66 has a large chamfered inclined surface 66A.

Next, the female terminal piece 10 according to this embodiment will be described with reference to FIGS. 3 to 6.

Each female terminal piece 10 is a press-molded product of a metal plate, and has a housing part 12 and a band-shaped spring piece 16 that includes a base end part 14 coupled to the housing part 12 and forms a cantilever beam. .

The housing part 12 includes a band-shaped board part 18 extending in the connector insertion/extraction direction, and a left side wall piece 20 and a right side wall that stand up from the left and right edges of the board part 18 on the connector insertion direction side (lower side). piece 22 , and a pair of left and right covering barrel pieces 24 and a core wire barrel piece (conductor connection portion) 25 that stand up from the left and right edges of the board portion 18 on the connector extraction direction side (upper side).

The covered barrel piece 24 is caulked to lock the insulated covering portion 52 of the insulated covered cable 50 to the base plate portion 18 (see FIG. 2). The core wire barrel piece 25 is caulked to lock the core wire (conductor wire) 54 of the insulated cable 50 to the base plate portion 18 (see FIG. 2).

The base end 14 of the spring piece 16 is formed by a piece bent at 90 degrees from the tip edge of the left side wall piece 20 of the housing part 12 toward the right side wall piece 22, and is connected to the housing part 12. The spring piece 16 includes an arm piece 26 extending from the base end 14 in the connector insertion direction (downward), and a free end of the arm piece 26 bent toward the front into a relatively small hook shape. It has an integrally formed tip piece portion 28.

The arm piece portion 26 includes a relatively short orthogonal portion 26A extending toward the base end 14 at a direction substantially perpendicular to the connector insertion/extraction direction on the base end 14 side, and a relatively short orthogonal portion 26A extending from the orthogonal portion 26A to the connector insertion/extraction direction. It includes a relatively long sloped portion 26B that slopes and extends toward the substrate portion 18 side. In other words, the orthogonal portion 26A is closer to the base end portion 14 than the inclined portion 26B, and forms a crank shape in cooperation with the base end portion 14 and the inclined portion 26B. The inclined portion 26B is set to be long without increasing the size of the female terminal piece 10 due to the inclination.

The tip piece portion 28 includes an arcuate curved portion 28A extending in the connector insertion direction from the free end of the inclined portion 26B, and a circular arc-shaped curved portion 28A extending from the free end of the curved portion 28A to the left side wall piece 20 substantially perpendicular to the connector insertion/extraction direction. , a relatively short orthogonal portion 28B extending toward the tip edge of the right side wall piece 22, and a relatively short orthogonal portion 28B that curves from the free end of the orthogonal portion 28B and extends in the connector extraction direction (upward). It includes a free end piece 28C with a size of about 100 mm, and has higher compression resistance (rigidity) in the front-rear direction than the arm piece 26.

On the outer surface of the curved portion 28A and the outer surface of the free end piece portion 28C, there are a first female contact portion 30 and a second female contact portion 32 facing away from each other in a direction perpendicular to the connector insertion/removal direction (back and forth direction). It is provided. The first female contact portion 30 and the second female contact portion 32 are located at substantially the same position when viewed in the connector insertion/removal direction, and each protrudes outward by embossing. The dimension A of the protruding ends of the first female contact portion 30 and the second female contact portion 32 in the direction perpendicular to the connector insertion direction (back and forth direction) is the first male contact portion 70 and the second male contact portion 72. It is larger than the dimension B in the direction (front-back direction) perpendicular to the connector insertion direction (see FIG. 6(A)).

The board portion 18 extends only up to a position in the connector insertion direction corresponding to the middle portion of the inclined portion 26B when viewed in the connector insertion direction, and does not exist further forward (lower) in the connector insertion direction. As a result, the tip piece 28 of the spring piece 16 is exposed to the outside on both sides (front and back both sides) in the direction perpendicular to the connector insertion/extraction direction, and the first leg 66 and the second leg of the male terminal piece 60 are exposed on both sides. Allow the legs 68 to enter.

The left side wall piece 20 and the right side wall piece 22 of the housing part 12 form a pair of side walls that are positioned on both left and right sides of the spring piece 16 with a gap in the left and right direction, and that shield both left and right sides of the spring piece 16. . More specifically, the left side wall piece 20 and the right side wall piece 22 have tips that correspond to the entire tip piece part 28 of the spring piece 16 including the first female side contact part 30 and the second female side contact part 32. It includes extended portions 20A and 22B extending on both sides of the piece 28.

The left side wall piece 20 and the right side wall piece 22 limit the horizontal deformation of the spring piece 16 without inhibiting the elastic deformation of the spring piece 16 that pivots at the joint with the proximal end 14, and the spring piece 16 The spring piece 16 is protected from disturbances caused by external force acting on the spring piece 16 due to contact with other parts or the like.

As a result, the durability of the spring piece 16 is improved, and the contact state between the first female contact portion 30 and the second female contact portion 32 and the first male contact portion 70 and the second male contact portion 72 is improved. Changes due to deformation of the spring pieces 16 are suppressed.

In particular, since the left side wall piece 20 and the right side wall piece 22 include the extended portions 20A and 22B, it is possible to reliably suppress external force from acting on the tip piece 28 of the spring piece 16 due to contact with other parts, etc. At the same time, the possibility that an oil film or the like will adhere to the first female contact portion 30 and the second female contact portion 32 is reduced.

The right side wall piece 22 includes a hook-shaped (overturned L-shape) bent piece part 34 extending from the tip edge. The bent piece portion 34 has a front piece portion 34A facing the base end portion 14 with a gap in front thereof.

The front piece 34A protects the proximal end 14 from disturbances caused by external forces acting on the proximal end 14 due to contact with other parts, etc., without inhibiting the movement of the proximal end 14. As a result, the durability of the spring piece 16 is improved, and the contact state between the first female contact portion 30 and the second female contact portion 32 and the first male contact portion 70 and the second male contact portion 72 is improved. Changes due to deformation of the spring pieces 16 are suppressed.

The housing portion 12 has a front wall piece 36 that is bent from the front end (lower end) of the right side wall piece 22 in the connector insertion direction toward the left side wall piece 20 . The front wall piece 36 extends in a direction orthogonal to the connector insertion/removal direction at a predetermined distance in front of the tip piece 28 in the connector insertion direction, and when the connector is inserted, the front wall piece 36 extends in a direction perpendicular to the connector insertion/removal direction. The dimensions in the front-rear direction are determined to be received between the male side contact portions 72. In other words, the dimension C of the front wall piece 36 in the front-rear direction is smaller than the dimension B of the first male contact portion 70 and the second male contact portion 72 in the direction perpendicular to the connector insertion direction (FIG. 6(B) reference).

The front wall piece portion 36 is configured to accommodate the tip portion of the spring piece 16 without inhibiting the insertion of the female terminal piece 10 into the male terminal piece 60 and the elastic deformation of the spring piece 16 that pivots the joint portion with the proximal end portion 14. 28 from disturbances caused by external forces acting on the proximal end 14 due to contact with other parts or the like.

As a result, the durability of the spring piece 16 is improved, and the contact state between the first female contact portion 30 and the second female contact portion 32 and the first male contact portion 70 and the second male contact portion 72 is improved. Changes due to deformation of the spring pieces 16 are suppressed.

A protrusion 36A is formed at the tip of the front wall piece 36. The protrusion 36A complementarily engages with a recess 20B formed at the tip of the left wall piece 20. Thereby, displacement movement of the front wall piece portion 36 in the front-rear direction with respect to the left side wall piece 20 is suppressed.

The housing portion 12 has cut and raised pieces 38 and 39 that are cut and raised inward near the lower ends of the left side wall piece 20 and the right side wall piece 22, respectively, and are surrounded by the tip piece 28 at a predetermined interval. include. The cut and raised pieces 38 and 39 extend at a predetermined interval on both front and rear sides and the front side of the distal end piece 28, and prevent the deformation of the spring piece 16 pivoting at the joint with the proximal end 14 and the longitudinal direction of the spring piece 16. Limits deformation in the direction (arm length direction).

As a result, excessive deformation of the spring piece 16 is suppressed, and the durability of the spring piece 16 is improved. Also, the state of contact with the second male side contact portion 72 is suppressed from changing due to deformation of the spring piece 16.

Next, the process of connecting the pair of terminal pieces will be explained with reference to FIGS. 6(A) to 6(C).

As shown in FIG. 6A, the female terminal piece 10 is roughly aligned in the front-rear direction with respect to the male terminal piece 60, and then the female terminal piece 10 is lowered. As a result of this descent, the first female side contact part 30 comes into contact with the inclined surface 66A of the first leg part 66 of the male side terminal piece 60, as shown in FIG. By lowering the piece 10, the first female contact portion 30 is guided by the inclined surface 66A and reaches a position where it contacts the first male contact portion 70, as shown in FIG. 6(C). At the same time, the second female contact portion 32 contacts the second male contact portion 72 .

In this state, the dimension A of the protruding ends of the first female contact part 30 and the second female contact part 32 in the direction orthogonal to the connector insertion direction is the same as that of the first male contact part 70 and the second male contact part 72. By being larger than the dimension B in the direction perpendicular to the connector insertion direction, the distal end piece 28 is elastically deformed to reduce the outer dimension in the front-rear direction, and the first leg 66 and the second leg 66, which are cantilevers, The legs 68 are elastically deformed so as to move away from each other in the front-back direction.

The necessary first female contact portion 30 and second female contact portion 30 The contact pressure between the female side contact part 32, the first male side contact part 70, and the second male side contact part 72 is ensured. Thereby, the conductive connection between the female terminal piece 10 and the male terminal piece 60 is established with high reliability.

Since the arm piece portion 26 is a relatively long cantilevered arm, and furthermore, since a crank shape is formed by the base end portion 14, the orthogonal portion 26A, and the inclined portion 26B, the base end portion 14 side The elastic deformation of the spring piece 16 with the pivot axis (hinge axis), that is, the elastic deformation of the spring piece 16 in which the distal end piece 28 is displaced in the front-back direction, causes the proximal end 14 extending in the left-right direction and the orthogonal part 26A. This is done with a relatively small force using an elastic piece with hinge axes both of the folding line and the folding line of the orthogonal part 26A and the inclined part 26B extending in the left-right direction.

By displacing the tip piece portion 28 in the front-rear direction, the displacement of the female terminal piece 10 in the front-rear direction with respect to the male terminal piece 60 is absorbed, and a high degree of flexibility can be obtained with respect to this positional displacement. This makes it difficult to cause a one-sided contact failure in which only one side of the pair of male contact portions 30, 32 and the pair of female contact portions 70, 72 come into contact.

In this way, by providing the first female side contact part 30 and the second female side contact part 32 on the tip piece part 28 which is different from the arm piece part 26, it is possible to absorb positional deviation which is usually contradictory. Both the flexibility of the arm piece 26 and the securing of contact pressure are achieved.

Although the present invention has been described above with reference to its preferred embodiments, as will be easily understood by those skilled in the art, the present invention is not limited to such embodiments, and there may be no deviation from the spirit of the present invention. It can be changed as appropriate to the extent that it does not.

In this embodiment, for convenience of explanation, the power supply side to which the conductor is connected is called the female side terminal piece 10, and the board side is called the male side terminal piece 60. The terminal piece may be called a male terminal piece, and the male terminal piece may be called a female terminal piece. The arrangement and number of the female terminal pieces 10 and the male terminal pieces 60 are not limited to those in the illustrated embodiment described above.

Further, all of the constituent elements shown in the above embodiments are not necessarily essential, and can be selected as appropriate without departing from the spirit of the present invention.

10 : Female terminal piece for connector 12 : Housing part 14 : Base end part 16 : Spring piece 18 : Board part 20 : Left side wall piece 20A : Expanded part 20B : Recessed part 22 : Right side wall piece 22B : Expanded part 24 : Covered barrel Piece 25: Core wire barrel piece (conductor connection part)
26 : Arm piece part 26A : Orthogonal part 26B : Inclined part 28 : Tip piece part 28A : Curved part 28B : Orthogonal part 28C : Free end piece part 30 : First female side contact part 32 : Second female side contact part 34 : Bent piece 34A: Front piece 36: Front wall piece 36A: Protrusion 38: Cut and raise piece 39: Cut and raise piece 40: Female connector 42: Female connector housing 50: Insulation coated cable 52: Insulation cover part 60: Connector male terminal piece 62: Conductive connection portion 64: Base portion 66: First leg portion 66A: Inclined surface 68: Second leg portion 70: First male contact portion 72: Second male contact portion 80: Male side connector 82: Male side connector housing

Claims (8)

A female terminal piece for a connector connected to a male terminal piece for a connector having a pair of male side contact portions facing each other at a distance in a direction perpendicular to the connector insertion/extraction direction,
A housing part including a conductor connection part to which a conductor is connected, and a band-shaped spring piece forming a cantilever including a base end coupled to the housing part,
The spring piece includes an arm piece extending from the base end in the connector insertion direction;
A pair of female contacts, which are bent into a hook shape at the free end side of the arm piece and are oriented away from each other in a direction perpendicular to the connector insertion/removal direction, and are to contact the pair of male side contact portions. and a tip piece forming a side contact part,
A female terminal piece for a connector, wherein the housing portion includes a pair of side walls located on both sides of the spring piece. 2. The female terminal piece for a connector according to claim 1, wherein the pair of side walls include portions extending on both sides of the tip piece so as to correspond to the entire tip piece. A female terminal piece for a connector connected to a male terminal piece for a connector having a pair of male side contact portions facing each other at a distance in a direction perpendicular to the connector insertion/extraction direction,
A housing part including a conductor connection part to which a conductor is connected, and a band-shaped spring piece forming a cantilever including a base end coupled to the housing part,
The spring piece includes an arm piece extending from the base end in the connector insertion direction;
A pair of female contacts, which are bent into a hook shape at the free end side of the arm piece and are oriented away from each other in a direction perpendicular to the connector insertion/removal direction, and are to contact the pair of male side contact portions. and a tip piece forming a side contact part,
The housing portion extends in a direction perpendicular to the connector insertion/extraction direction at a predetermined distance in front of the tip piece portion in the connector insertion direction, and when the connector is inserted, the housing portion extends in a direction perpendicular to the connector insertion/extraction direction. A female terminal piece for a connector having a front wall piece to be received therebetween. A female terminal piece for a connector connected to a male terminal piece for a connector having a pair of male side contact portions facing each other at a distance in a direction perpendicular to the connector insertion/extraction direction,
A housing part including a conductor connection part to which a conductor is connected, and a band-shaped spring piece forming a cantilever including a base end coupled to the housing part,
The spring piece includes an arm piece extending from the base end in the connector insertion direction;
A pair of female contacts, which are bent into a hook shape at the free end side of the arm piece and are oriented away from each other in a direction perpendicular to the connector insertion/removal direction, and are to contact the pair of male side contact portions. and a tip piece forming a side contact part,
A female terminal piece for a connector, wherein the housing portion includes a cut-and-raised piece surrounded by the tip piece at a predetermined distance from the tip piece. The female terminal piece for a connector according to claim 3 or 4, wherein the housing portion includes a pair of side walls located on both sides of the spring piece. The female terminal piece for a connector according to any one of claims 1 to 5, wherein the arm piece includes an inclined part extending obliquely with respect to the connector insertion/extraction direction. 7. The female terminal piece for a connector according to claim 6 , wherein the arm piece includes a perpendicular part extending perpendicularly to the connector insertion/extraction direction, closer to the proximal end than the inclined part. A terminal piece pair of a male side terminal piece for a connector and a female side terminal piece for a connector that can be inserted into and removed from each other,
The male connector terminal piece has a base extending in a direction perpendicular to the connector insertion/extraction direction, and a pair of base parts extending in the connector insertion/extraction direction from the base at intervals in the direction perpendicular to the base. leg portions, the pair of leg portions including a pair of male side contact portions facing each other,
A pair of terminal pieces, wherein the female connector terminal piece is the female connector terminal piece according to any one of claims 1 to 7.

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