JP2009087580A - Connecting terminal and connecting terminal block - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connecting terminal that guides a core wire of an electric wire to a regular position between a first contact part and a second contact part while holding the core wire, and also to provide a connecting terminal block. <P>SOLUTION: The connecting terminal 18 is a terminal that elastically holds a core wire 19A of an electric wire 19 between a contact face 55B of a first contact part 55 and an end face 56A of a second contact part 56. The width dimension W1 at the end side in the first contact part 55 is smaller than the width dimension W2 of the second contact part while one side end face of the first contact part 55 and one side end of the second contact part 56 are along the same plane. A guide recessed part 56D is formed at the end part 56E of the second contact part 56. The recessed-part centerline 60 of the guide recessed part is eccentric from the center 61 in the width direction of the second contact part to the one side end face side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a connection terminal and a connection terminal block that can connect a core wire to a substrate by elastically holding the core wire of the electric wire while being connected to the substrate.

As shown in FIG. 15, the connection terminal block 100 includes a housing 101 that can be disposed on a printed circuit board, and includes a connection terminal 103 that is housed in the housing 101 and can connect an electric wire to the printed circuit board.
The connection terminal 103 is formed by bending a strip-shaped conductive member into a substantially triangular shape, having both end portions located at the apex position, the first contact portion 104 and the second contact portion 105 being formed at both end portions, and lead from the bottom portion 106. A terminal 107 is extended.
The core wire of the electric wire is held in a state of being connected between the first contact portion 104 and the second contact portion 105. The lead terminal 107 is connected to the printed circuit board by soldering.

The casing 101 has an outer shell formed in a substantially rectangular parallelepiped shape, a bottom 101A is placed on the printed board, and an insertion hole 109 for an electric wire is formed from one end of the surface facing the bottom 101A toward the bottom 101A.
In a state in which the connection terminal 103 is accommodated in the housing 101, the lead terminal 107 protrudes outward from the bottom 101A (see, for example, Patent Document 1).

According to the connection terminal block 100 of Patent Document 1, the lead terminal 107 is soldered to the printed board, and the electric wire is inserted from the electric wire insertion hole 109 and held between the first contact portion 104 and the second contact portion 105. Thus, the electric wire is connected to the printed board.
JP 2002-324598 A

By the way, the width dimension of the front end side in the first contact portion 104 is formed smaller than the width dimension of the second contact portion 105.
For this reason, when the electric wire is inserted from the insertion hole 109 of the electric wire and the core wire of the electric wire is held between the first contact portion 104 and the second contact portion 105, the core wire of the electric wire guided along the second contact portion 105 May be displaced from the first contact portion 104.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a connecting terminal capable of guiding and holding the core wire of an electric wire at a regular position between the first contact portion and the second contact portion, and It is to provide a connecting terminal block.

  The connection terminal of the present invention is connected to the contact surface along the longitudinal direction of the first contact portion provided on one end side in the longitudinal direction of the strip-shaped conductive member and the base end portion of the first contact portion via the connection portion. The core wire of the electric wire can be elastically sandwiched between the conductive member and the distal end surface of the second contact portion provided on the other longitudinal end side of the conductive member, and the width dimension of the distal end side of the first contact portion is The width of the second contact portion is smaller than the width of the second contact portion, the one end surface of the first contact portion and the one end surface of the second contact portion are along the same plane, and the tip surface is concave. A guide recess is formed at the tip of the second contact portion, and a recess center line of the guide recess along the longitudinal direction of the second contact portion extends from the center in the width direction of the second contact portion toward the one end face side. It is characterized by being eccentric.

A guide recess having a concave tip surface was formed at the tip of the second contact portion, and the center line of the recess of the guide recess was eccentric from the center in the width direction of the second contact portion toward the one end surface.
Therefore, the concave part center line of the guide concave part can be brought close to the one end face side of the first contact part and can be surely faced to the contact surface of the first contact part.
Thereby, the core wire of an electric wire can be guided to the regular position between a 1st contact part and a 2nd contact part, and the guided core wire can be hold | maintained.

  Moreover, this invention has a convex part connected with the other end side surface on the opposite side with respect to the said one side end surface in the said 1st contact part, The said convex part does not interfere with the front-end | tip part of the said 2nd contact part. It is provided in.

  By having the convex portion on the other side surface of the first contact portion, the core wire can be brought into contact with the convex portion of the first contact portion even when the core wire of the electric wire is inserted obliquely.

  Furthermore, the present invention is characterized in that the width of the convex portion from the tip of the convex portion to the one side end surface is the same as the width of the second contact portion.

  Therefore, since the connection terminal can be accommodated in the accommodation portion of the housing that accommodates the connection terminal without any gap, it is possible to prevent the connection terminal from being loose or displaced in the accommodation portion.

  In addition, the present invention is characterized in that a lead portion that extends in a direction away from the electric wire and is connectable to a substrate is provided by cutting and bending a part of the connecting portion.

  By forming the lead part integrally with the connecting part (that is, the connecting terminal), the connecting terminal can be simplified.

  Furthermore, the connection terminal block of the present invention includes the connection terminal and a housing that accommodates the connection terminal, and the housing accommodates the connection terminal along a width direction of the conductive member. A body provided with a cover, a cover disposed inside a wall portion surrounding the housing portion and closing the housing portion, an insertion hole capable of guiding the electric wire from the outside of the body to the connection terminal, and the connection A lead portion provided in the terminal is provided with a lead portion lead-out hole capable of projecting to the outside of the body.

By accommodating the connecting terminal in the accommodating portion and closing the accommodating portion with the cover, the connecting terminal can be positioned with respect to the insertion hole, and the lead portion can be protruded from the lead portion extraction hole. .
Thereby, a connection terminal can be easily attached to a housing | casing, without an effort.

  Further, according to the present invention, a closing portion having the same shape as the cover is formed on a side surface of the body opposite to the housing portion, and a plurality of the bodies are connected via the closing portion. The cover is attached to the body at the outermost end.

  Therefore, it becomes possible to connect a desired number of bodies, and for example, it can be applied to various printed boards.

  Further, according to the present invention, the sandwiching angle between the first contact portion and the second contact portion is an initial state sandwiching angle not sandwiching the core wire of 60 degrees or more, and a sandwiching state sandwiching angle sandwiching the core wire is It is characterized by being 20 degrees or more.

By setting the initial state clamping angle to 60 degrees or more, when the electric wire is inserted from the insertion hole, a large inclination angle of the tip surface of the second contact portion with respect to the core wire can be secured.
Therefore, even when the electric wire having the maximum diameter is inserted from the insertion hole, it is possible to prevent the core wire from coming out at the tip surface of the second contact portion.

Further, by setting the clamping state clamping angle to 20 degrees or more, it is possible to ensure a large inclination angle of the distal end surface of the second contact portion with respect to the core wire in a state where the electric wire is inserted from the insertion hole.
Therefore, in the state where the electric wire having the maximum diameter is inserted from the insertion hole, the tip surface of the second contact portion can be sufficiently bited into the core wire.

  Thus, in the state where the core wire is prevented from coming out when the maximum diameter electric wire is inserted from the insertion hole, and the maximum diameter electric wire is inserted from the insertion hole, the tip surface of the second contact portion is used as the core wire. Since it can be made to bite enough, the electric wire can be locked securely.

  According to the connection terminal and the connection terminal block of the present invention, there is an effect that the core wire of the electric wire can be guided to the normal position between the first contact portion and the second contact portion and the guided core wire can be held.

Hereinafter, a connection terminal and a connection terminal block according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the connection terminal block unit 10 is incorporated in a printed circuit board (substrate) 11, the printed circuit board 11 is provided in the lower case 12, and the printed circuit board 11 and the connection terminal block unit 10 are covered with the upper case 13. It has been broken.
The connection terminal block unit 10 includes a connection terminal block 15, a plurality of bodies 16, and a plurality of connection terminals 18 (see FIG. 3).

By inserting the electric wires 19 (see FIG. 14B) from the insertion holes 17 of the plurality of bodies 16, the electric wires 19 are connected to the printed circuit board 11 by being held by the plurality of connecting terminals 18.
That is, the connection terminal block 15 is a terminal block for the printed circuit board 11.
Hereinafter, the connection terminal block 15 will be described in detail.

  As shown in FIGS. 2 to 5, the connection terminal block 15 accommodates the connection terminal 18 that can be connected (held) by sandwiching the core wire 19 </ b> A of the electric wire 19 shown in FIG. 14B, and the connection terminal 18. A housing 21.

  The housing 21 includes a body 16 provided with a housing portion 22 for housing the connection terminal 18, an insertion hole 17 capable of guiding the electric wire 19 (see FIG. 14B) from the outside of the body 16 to the connection terminal 18, A lead part lead-out hole 25 that can project the lead part 24 provided on the connecting terminal 18 to the outside of the body 16, and a left wall part (wall part) 26 and a right wall part (wall part) 27 that surround the accommodating part 22. And a cover 31 that closes the housing portion 22 and a fitting means 33 that maintains the relative fitting of the body 16 and the cover 31.

By providing the housing portion 22 with the housing portion 22, the insertion hole 17, and the lead portion lead-out hole 25, the connection terminal 18 is housed in the housing portion 22, and the housing portion 22 is closed with the cover 31, thereby connecting the connection terminal 18. Positioning with respect to the insertion hole 17 is possible, and the lead portion 24 can be protruded from the lead portion lead-out hole 25 to the outside.
Thereby, the connecting terminal 18 can be easily attached to the housing without taking time and effort.

The body 16 is formed in a substantially rectangular body, the housing portion 22 is provided in a portion 35 facing the cover 31, and the left wall portion 26 and the right wall portion 27 project in parallel to each other on the left and right sides of the housing portion 22. Thus, it is formed in a substantially U shape in plan view.
In the body 16, a plurality of bosses 36 are provided in a portion 35 facing the cover 31, a plurality of boss recesses 45 are provided in a back surface 44 on the opposite side to the housing portion 22, and a side surface on the side opposite to the housing portion 22. 38 is formed with body fitting means (closing portion) 39 as fitting means having the same shape as the cover 31.

As shown in FIG. 6, the accommodating portion 22 accommodates the connecting terminal 18 along the width direction of the conductive member 20 forming the connecting terminal 18, and the left and right sides are surrounded by the left wall portion 26 and the right wall portion 27. Are provided inside the left wall portion 26 and the right wall portion 27.
The left wall portion 26 and the right wall portion 27 are members that can be accommodated in a state where the cover 31 is sandwiched. The left wall portion 26 has a left fitting recess (fitting recess) 41 of the fitting means 33 formed on the upper side. In the right wall portion 27, a right fitting recess (fitting recess) 42 of the fitting means 33 is formed on each of the upper and lower sides.

The boss 36 is provided in the vicinity of the housing portion 22 in the portion 35 facing the cover 31 and in the vicinity of the left wall portion 26 and the right wall portion 27.
The boss recess 45 is a recess into which the boss 36 is fitted.

As shown in FIG. 5, the body fitting means 39 is a fitting claw portion formed on the side surface 38 on the side opposite to the housing portion 22. The fitting claw portion 39 is a portion having the same shape as a left fitting claw portion 51 and a right fitting claw portion 52 of the fitting means 33 described later.
By providing the body 16 with body fitting means (fitting claw part) 39, a plurality of bodies 16 are connected via the body fitting means (fitting claw part) 39.

Thus, by providing the body 16 with the body fitting means 39, it becomes possible to connect a desired number of bodies 16 and can be applied to, for example, various printed boards 11 (see FIG. 1).
A cover 31 is attached to the body 16 at the end of the plurality of bodies 16.

  The cover 31 is a substantially rectangular member accommodated in the left wall portion 26 and the right wall portion 27 by being sandwiched between the left wall portion 26 and the right wall portion 27, and is attached to the back surface 31 </ b> B facing the accommodation portion 22. A boss recess 47 is provided.

As shown in FIG. 7, the cover 31, as shown in FIG. 7, covers the distal end 26 </ b> A of the left wall portion 26 and the distal end 27 </ b> A of the right wall portion 27 in a state of being accommodated in the left wall portion 26 and the right wall portion 27. The surface 31 </ b> A is formed so as not to protrude from the passing surface 47 (for example, the same surface).
Therefore, since the cover 31 can be covered with the left wall portion 26 and the right wall portion 27, it is possible to prevent external force from being applied to the cover 31, and to prevent the cover 31 from being detached or cracked.

Further, by covering the cover 31 with the left wall portion 26 and the right wall portion 27, the insulation distance L1 from the connecting terminal 18 can be secured up to the surface 31A of the cover 31 as shown in FIGS. .
As a result, the insulation distance L1 can be increased because the insulation distance can be increased by the thickness dimension L2 of the cover 31 as compared with the case where the back surface of the cover is abutted against the body like a normal connection terminal block.

  Further, by covering the cover 31 with the left wall portion 26 and the right wall portion 27, as shown in FIG. 9A, even when the core wire 19B of the electric wire 19 is displaced and inserted in the arrow direction, the left wall portion 26 The core wire 19B can be stopped.

  On the other hand, when the back surface 84A of the cover 84 is abutted against the opening 81A of the body 81 as in a normal connection terminal block 80 shown in FIG. 9B, the core wire 19B of the electric wire 19 is displaced and inserted in the direction of the arrow. The opening 82A and the back surface 84A may be brought into contact with each other.

Returning to FIG. 7, the boss recess 47 is a through hole into which the boss 36 is fitted. The reason why the boss recess 47 and the boss 36 are provided will be described later.
In the embodiment, the boss concave portion 47 is exemplified as a through hole, but the boss concave portion 47 is not limited to the through hole, and may be a concave portion.

  The fitting means 33 is provided on the left fitting recess 41 provided on the left wall inner surface (wall inner surface) 26B of the left wall portion 26 and the cover left end surface (cover end surface) 31C of the cover 31 (see also FIG. 5). A left fitting claw portion (fitting claw portion) 51 (see also FIG. 5) that is provided and engages with the left fitting recess 41, and a right wall inner surface (wall inner surface) 27B of the right wall portion 27. The right fitting recess (fitting recess) 42 and the right fitting claw portion (fitting) which is provided on the cover right end surface (cover end surface) 31D (see also FIG. 3) of the cover 31 and engages with the right fitting recess 42. A claw portion) 52 (see also FIG. 3).

The left fitting claw portion 51 protrudes from the cover left end surface 31 </ b> C of the cover 31 in a direction intersecting the mounting direction of the cover 31 with respect to the body 16.
Further, the right fitting claw portion 52 protrudes from the cover right end surface 31 </ b> D of the cover 31 in a direction intersecting with the mounting direction of the cover 31 with respect to the body 16.

That is, the left fitting claw portion 51 and the right fitting claw portion 52 do not need to protrude in parallel to the mounting direction of the cover 113 with respect to the body 111, unlike the conventional claw portion 112.
Here, since the nail | claw part 112 of a prior art protrudes in parallel with the attachment direction of the cover 113 with respect to the body 111, it is necessary to enlarge a cross-sectional area in order to ensure fitting force. However, when the cross-sectional area is increased, there is a possibility that the claw 112 may be damaged at the base 112A when the claw 112 is elastically deformed.

However, the left fitting claw portion 51 and the right fitting claw portion 52 do not need to protrude in parallel to the mounting direction of the cover 113 with respect to the body 111 unlike the claw portion 112 of the prior art. There is no need to increase the cross-sectional area of the claw portion 51 and the right fitting claw portion 52.
For this reason, the phenomenon that the left fitting claw portion 51 and the right fitting claw portion 52 are damaged at the base portion 112A when the claw portion 112 is elastically deformed does not occur.

The left fitting recess 41 is provided on the upper side of the left wall portion inner surface 26B facing the cover left end surface 31C in the left wall portion 26.
The right fitting recesses 42 are respectively provided on the upper and lower sides of the right wall portion inner surface 27B facing the cover right end surface 31D in the right wall portion 27 (see FIG. 3).

Accordingly, the fitting is maintained by the left fitting claw portion 51 and the right fitting claw portion 52 that extend in a direction intersecting the attachment direction of the cover 31 with respect to the body 16.
Accordingly, a good fitting force can be obtained without increasing the cross-sectional areas of the left fitting claw portion 51 and the right fitting claw portion 52, and the possibility of damage to the left fitting claw portion 51 and the right fitting claw portion 52 is eliminated. be able to.

Further, by having the body fitting means (fitting claw part) 39 in the body 16, body fitting means (fitting claw part) 39 extending in a direction intersecting the mounting direction of the other body 16 with respect to the body 16. Thus, the fitting is maintained.
Thereby, the fitting force of the other body 16 with respect to the body 16 can be favorably obtained without increasing the cross-sectional area of the body fitting means (fitting claw portion) 39, and the body fitting means (fitting claw portion) 39. The possibility of breakage of the battery can be eliminated.

Further, the left fitting claw portion 51 and the right fitting claw portion are provided on the cover left end surface 31c and the cover right end surface, so that the left fitting concave portion 41 is provided on the left wall portion 26 and the right fitting portion is fitted to the right wall portion 27. A recess 42 can be provided.
Since there is no protrusion on the left wall inner surface 26B of the left wall 26 and the right wall inner surface 27B of the right wall 27, there is no possibility of interference when the connecting terminal 18 is accommodated in the accommodating portion 22.

The left fitting recess 41 and the right fitting recess 42 are through holes into which the left fitting claw portion 51 and the right fitting claw portion 52 are fitted.
In the embodiment, the left fitting concave portion 41 and the right fitting concave portion 42 are illustrated as through holes, but the present invention is not limited to the through holes, and may be concave portions.

  Moreover, although the example which provided the left fitting recessed part 41 and the left fitting nail | claw part 51 one each is demonstrated, the left fitting recessed part 41 and the left fitting claw part 51 are set to the right fitting recessed part 42 and the right fitting claw part. Similarly to 52, it is possible to provide two each.

By providing a plurality of left fitting concave portions 41 and left fitting claw portions 51, right fitting concave portions 42 and right fitting claw portions 52, the fitting force can be increased.
Further, by providing a plurality of left fitting recesses 41 and left fitting claws 51, right fitting recesses 42 and right fitting claws 52, respectively, the height of the left fitting claws 51 and the right fitting claws 52 can be increased. It is also possible to secure the strength of the left fitting claw portion 51 and the right fitting claw portion 52 while suppressing this.

  Further, as described above, the boss 36 is provided on the body 16, and the boss recess 47 is provided on the cover 31. Therefore, when the boss 36 is fitted into the boss recess 47, the play of the cover 31 with respect to the body 16 is eliminated, and the respective engagement allowances of the left engagement claw portion 51 and the left engagement claw portion 52 are left engagement recess 41. In addition, it is possible to prevent frequent contact with the left engagement recess 41 and wear, and to increase the fitting force.

  Furthermore, by providing the boss 36 in the vicinity of the left wall portion 26 and the right wall portion 27 (that is, in the vicinity of the fitting means 33), the backlash of the cover 31 with respect to the body 16 can be further reliably eliminated.

  As shown in FIGS. 10 to 12, the connection terminal 18 includes a first contact portion 55 provided on one end side in the longitudinal direction of the conductive member 20, the belt-shaped conductive member 20 bent in a substantially triangular shape, and the conductive member 20. A second contact portion 56 provided on the other end in the longitudinal direction, a connecting portion 57 that connects the base end portion 56A of the second contact portion 56 and the base end portion 55A of the first contact portion 55, and one of the connecting portions 57 And a lead portion 24 formed by cutting and bending the portion.

  The connecting terminal 18 is configured such that the core wire 19 </ b> A of the electric wire 19 can be elastically sandwiched between a contact surface 55 </ b> B along the longitudinal direction of the first contact portion 55 and a distal end surface 56 </ b> B of the second contact portion 56. Yes.

As shown in FIG. 13A, in the connection terminal 18, the sandwiching angle θ between the first contact portion 55 and the second contact portion 56 is set to 60 degrees or more in the initial state where the core wire 19A is not sandwiched.
Hereinafter, the angle in the initial state where the core wire 19A is not sandwiched is referred to as “initial state sandwiching angle”.

  As shown in FIG. 13A, in a state where the core wire 19A is not sandwiched, the electric inspection pin 66 is inserted from the electric inspection hole 65 of the body 16, and the tip portion 66A of the electric inspection pin 66 is connected to the second contact portion. The continuity test is performed by abutting on the tip 56E of 56.

Further, as shown in FIG. 13B, the connecting terminal 18 is set so that the sandwiching angle between the first contact portion 55 and the second contact portion 56 is 20 degrees or more in the holding state in which the core wire 19A is sandwiched. .
Hereinafter, the angle of the sandwiched state in which the core wire 19A is sandwiched is referred to as “the sandwiched state sandwich angle”.

  As shown in FIG. 13B, in the holding state sandwiched between the first contact portion 55 and the second contact portion 56, the wire release pin 68 is inserted from the wire release hole 67 of the body 16 to release the wire. The core wire 19 </ b> A can be removed from between the first contact portion 55 and the second contact portion 56 by elastically deforming the tip portion 56 </ b> E of the second contact portion 56 downward with the tip portion 68 </ b> A of the pin 68.

  Hereinafter, the angle in the initial state in which the core wire 19A is not sandwiched is referred to as “initial state sandwich angle”, and the angle in the sandwich state in which the core wire 19A is sandwiched is referred to as “nip state sandwich angle”.

By setting the initial state clamping angle to 60 degrees or more, when the electric wire 19 is inserted from the insertion hole 17, a large inclination angle of the tip surface 56 </ b> B of the second contact portion 56 with respect to the core wire 19 </ b> A can be secured.
Therefore, even when the electric wire 19 having the maximum diameter is inserted from the insertion hole 17, it is possible to prevent the core wire from coming out at the distal end surface 56 </ b> B of the second contact portion 56.

Moreover, when the clamping state clamping angle is set to 20 degrees or more, a large inclination angle of the distal end surface 56A of the second contact portion 56 with respect to the core wire 19A can be secured in a state where the electric wire 19 is inserted from the insertion hole 17.
Therefore, in a state where the maximum diameter electric wire 19 is inserted from the insertion hole 17, the front end surface 56 </ b> A of the second contact portion 56 can be sufficiently bited into the core wire 19 </ b> A.

  Thus, in the state where the core wire 19 </ b> A is prevented from coming out when the maximum diameter electric wire 19 is inserted from the insertion hole 17 and the maximum diameter electric wire 19 is inserted from the insertion hole 17, the second contact portion 56. The front end surface 56B can be sufficiently bitten into the core wire, so that the electric wire 19 can be securely locked.

As shown in FIG. 14A, the first contact portion 55 is formed such that the width dimension W1 on the tip 55C side is smaller than the width dimension of the second contact portion 56, and the other end side surface on the opposite side to the one side end surface 55D. It has the convex part 59 connected with 55E.
The convex portion 59 is provided at a position where it does not interfere with the distal end portion 56E of the second contact portion 56.
Further, the convex width W3 from the tip 59A of the convex 59 to the one side end face 55D is formed to be the same as the width W2 of the second contact portion 56.

  By forming the convex portion width dimension W3 and the width dimension W2 of the second contact portion 56 to be the same, the connection terminal 18 can be accommodated in the accommodating portion 22 of the casing 21 that accommodates the connection terminal 18 without substantial gaps. It is possible to prevent the connection terminal 18 from being loose or misaligned in the portion 22.

  The second contact portion 56 has a guide recessed portion 56D having a one end face 56C along the same plane as the one end face 55C of the first contact portion 55, and a leading end face 56B having a concave shape as shown in FIG. A recess center line 60 of the guide recess 56D is formed in 56E along the longitudinal direction of the second contact portion 56 and is eccentric from the width direction center 61 of the second contact portion 56 toward the one side end face 56C.

The guide recess 56D includes a second fold line 56F in which the second contact portion 56 is inclined from the front end surface 56B toward the one side end surface 56C, and a second fold line 56H in which the second contact portion 56 is inclined from the front end surface 56B toward the other end surface 56G. Each is formed by being bent.
Therefore, the width of the guide recess 56D gradually decreases from the base end portion 56A of the second contact portion 56 toward the tip end surface 56B.

In the guide recess 56D, the recess center line 60 is eccentric from the center 61 in the width direction of the second contact portion 56 toward the one end face 56C.
Therefore, the recess center line 60 of the guide recess 56D can be brought close to the one end face 55C side of the first contact portion 55 and can be surely faced to the contact surface 55B (see FIG. 12) of the first contact portion 55.
Thereby, the core wire 19A of the electric wire 19 can be guided to the normal position between the first contact portion 55 and the second contact portion 56, and the guided core wire 19A can be reliably held.

  Moreover, by having the convex part 59 in the other end side surface 55E of the first contact part 55, even if the core wire 19A of the electric wire 19 is inserted obliquely as shown in FIG. The core wire 19 </ b> A can be brought into contact with the convex portion 59 of the portion 55.

  In the embodiment, the guide recess 56D is formed such that the tip surface 56B is a substantially V-shaped recess. However, the guide recess is not limited to this, and the guide recess 56D is a substantially U-shaped recess. It is also possible to form 56D.

The lead portion 24 is a portion that extends in a direction away from the electric wire 19 and can be connected to the printed circuit board (substrate) 11 (see FIG. 1). The lead portion 24 is integrally formed by cutting and bending a part of the connecting portion 57.
By forming the lead portion 24 integrally with the connecting portion 57 (that is, the connecting terminal 18), the connecting terminal 18 can be simplified.

  In addition, the shapes of the connection terminal block 15, the body 16, the connection terminal 18, the casing 21, the housing portion 22, the lead portion 24, the left wall portion 26, the right wall portion 27, the cover 31, and the like exemplified in the above embodiment are appropriately changed. Is possible.

  The present invention is suitable for application to a connecting terminal and a connecting terminal block that can connect the core wire to the substrate by elastically holding the core wire of the electric wire while being connected to the substrate.

It is a perspective view which shows the state which integrated the connection terminal block unit which concerns on this invention in the printed circuit board. It is a front perspective view which shows the connection terminal block unit which concerns on this invention. It is a front perspective view which shows the state which decomposed | disassembled some connection terminal block units which concern on this invention. It is a front perspective view which shows the state which decomposed | disassembled the whole connection terminal block unit which concerns on this invention. It is a back perspective view which shows the state which decomposed | disassembled the whole connection terminal block unit which concerns on this invention. It is a front view which shows the state which incorporated the connection terminal in the body of the connection terminal block which concerns on this invention. It is the sectional view on the AA line of FIG. (A) is sectional drawing of the connection terminal block unit which concerns on this invention, (B) is the A section enlarged view of (A). (A) is a schematic sectional drawing of the connection terminal block which concerns on this invention, (B) is a schematic sectional drawing of a normal connection terminal block. It is a perspective view which shows the state which looked at the connecting terminal which concerns on this invention from the right side. It is a perspective view which shows the state which looked at the connecting terminal which concerns on this invention from the left side. It is a front view which shows the connection terminal which concerns on this invention. (A) is a front view which shows the state by which the electric wire is not inserted in the connection terminal block which concerns on this invention, (B) is a front view which shows the state by which the electric wire was inserted in the connection terminal block which concerns on this invention. (A) is an A arrow view of FIG. 12, (B) is a top view which shows the state which clamped the core wire of the electric wire between the 1st contact part and 2nd contact part which are shown in FIG. It is a disassembled perspective view of the conventional connection terminal block unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 15 Connection terminal block 16 Body 17 Insertion hole 18 Connection terminal 19 Electric wire 19A Core wire 20 Conductive member 21 Housing | casing 22 Storage part 24 Lead part 25 Lead part extraction hole 26 Left wall part (wall part)
27 Right wall (wall)
31 Cover 38 Side surface of body opposite to housing portion 39 Body fitting means (closing portion)
55 1st contact part 55A Base end part of 1st contact part 55B Contact surface 55D One side end surface of 1st contact part 55E The other end side surface of 1st contact part 56 2nd contact part 56B The front end surface 56C of 2nd contact part One side end face of 2 contact portion 56D Guide concave portion 56E Tip portion of second contact portion 57 Connecting portion 59 Convex portion 59A Tip of convex portion 60 Concavity center line 61 Center in width direction W1 Width dimension on tip side in first contact portion W2 First Width dimension of two contact parts W3 Convex part width dimension θ Pinch angle between the first contact part and the second contact part

Claims (7)

A contact surface along the longitudinal direction of the first contact portion provided on one end side in the longitudinal direction of the strip-shaped conductive member;
An electric wire core is elastically sandwiched between a proximal end portion of the first contact portion via a connecting portion and a distal end surface of a second contact portion provided on the other longitudinal end side of the conductive member. Is possible,
The width dimension of the front end side in the first contact portion is smaller than the width dimension of the second contact portion, and the one end face of the first contact portion and the one end face of the second contact portion are along the same plane. And a guide recess is formed at the tip of the second contact portion such that the tip surface is concave.
The connecting terminal, wherein a recess center line of the guide recess along the longitudinal direction of the second contact portion is eccentric from the center in the width direction of the second contact portion toward the one end face side. A convex portion connected to the other end side surface of the first contact portion opposite to the one side end surface;
The connecting terminal according to claim 1, wherein the convex portion is provided at a position that does not interfere with a tip portion of the second contact portion.   The connection terminal according to claim 2, wherein the width dimension of the convex part from the tip of the convex part to the one side end surface is the same as the width dimension of the second contact part.   The connecting terminal according to claim 1, wherein a lead portion that extends in a direction away from the electric wire by cutting and bending a part of the connecting portion and is connectable to a substrate is provided. The connecting terminal according to any one of claims 1 to 4, and a housing that houses the connecting terminal,
A body provided with a housing portion for housing the connection terminal along the width direction of the conductive member; a cover disposed inside a wall portion surrounding the housing portion and closing the housing portion; And an insertion hole through which the electric wire can be guided to the connection terminal from the outside of the body, and a lead portion extraction hole from which the lead portion provided in the connection terminal can protrude to the outside of the body. Connecting terminal block. A closing portion having the same shape as the cover is formed on the side surface of the body opposite to the housing portion,
6. The connection terminal block according to claim 5, wherein a plurality of the bodies are connected via the closing portion, and the cover is attached to the body at the end of each of the bodies. .   The sandwiching angle between the first contact portion and the second contact portion is an initial state sandwiching angle not sandwiching the core wire is 60 degrees or more, and a sandwiching state sandwiching angle sandwiching the core wire is 20 degrees or more. The connection terminal block according to claim 5 or 6, characterized in that.

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