JP2014011103A - Connector terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector terminal, manufactured by forming a tabular metal material into a predetermined shape and then performing bending work on the material thus formed into the predetermined shape, which is less likely to be deformed even when external force is applied thereto.SOLUTION: A connector terminal 1 comprises: a body part 7 formed into a rectangular cylindrical shape; a male contact part 9 protruding from a first side wall part 23A of the body part 7; a female contact part 11 arranged inside the body part 7; a slit 13 arranged on a second side wall part 23B of the body part 7; and a rear wall part 17 arranged at an opening on the rear side of the body part 7 so as to prevent the deformation of the body part 7.

Description

  The present invention relates to a connector terminal, and more particularly to a connector terminal that is manufactured by processing a plate material and is used by being installed at one end of an electric wire.

  Conventionally, a connector terminal is installed at each end of a plurality of electric wires, and by connecting these connector terminals to each other, it is known to ensure electrical continuity between the electric wires (for example, Patent Documents). 1).

  The conventional connector terminal includes a rectangular cylindrical main body portion, a male contact portion (tongue piece-like engagement piece), and a female contact portion (biasing portion, locking piece). The male contact portion protrudes from the main body portion, and the female contact portion exists in the main body portion.

  And the male contact part of one connector terminal is engaged with the female contact part in the main-body part of another one connector terminal, and each connector terminal is integrated and is made conductive.

JP 2007-87810 A

  By the way, in the said conventional connector terminal, since the both ends of the main-body part formed in the rectangular cylinder shape are opening, there exists a problem that it is easy to deform | transform when external force is applied with weak intensity | strength.

  The present invention has been made in view of the above problems, and in a connector terminal manufactured by forming a plate-shaped metal material into a predetermined shape and bending the material formed into the predetermined shape. An object of the present invention is to provide a device that is difficult to deform even when an external force is applied.

  According to the first aspect of the present invention, a connector terminal manufactured by forming a plate-shaped metal material into a predetermined shape and bending the material formed into the predetermined shape is formed into a rectangular cylindrical shape. A main body part, a male contact part protruding from a first side wall part which is one side wall part in the lateral direction of the main body part, a female contact part provided inside the main body part, A slit provided in the second side wall portion, which is the other side wall portion in the horizontal direction of the main body portion, and a rear opening portion of the main body portion in order to prevent deformation of the main body portion. A connector terminal having a rear wall portion.

  According to a second aspect of the present invention, in the connector terminal according to the first aspect, the rear side of the cylindrical main body portion protrudes rearward from the main body portion, and when the housing is installed on the housing, It is a connector terminal having a lance engaging portion in which a portion engaged with the lance is square.

  According to a third aspect of the present invention, in the connector terminal according to the first or second aspect, the rear wall portion is a connector terminal in which a notch connected to the slit is formed.

  According to a fourth aspect of the present invention, in the connector terminal according to any one of the first to third aspects, the portion on the tip end side of the rear wall portion sandwiches one side wall portion of the main body portion. It is the connector terminal which is the structure which is.

  According to the present invention, a connector terminal manufactured by forming a plate-shaped metal material into a predetermined shape and bending the material formed into the predetermined shape is not easily deformed even when an external force is applied. There is an effect.

It is a perspective view which shows schematic structure of the connector terminal which concerns on embodiment of this invention, and the housing in which this connector terminal is accommodated. It is a perspective view showing a schematic structure of a connector terminal concerning an embodiment of the present invention. It is sectional drawing which cut | disconnected the connector terminal which concerns on embodiment of this invention by the plane (plane orthogonal to a horizontal direction) developed in the vertical direction and the front-back direction. It is an expanded view of the connector terminal which concerns on embodiment of this invention. It is sectional drawing which shows the state which installed the connector terminal which concerns on embodiment of this invention in the housing. It is the fragmentary sectional view which cut | disconnected schematic structure of the connector terminal which concerns on a modification with the plane orthogonal to a horizontal direction. It is a VII-VII arrow line view in FIG.

  The connector terminal (joint terminal) 1 which concerns on embodiment of this invention is installed and used for the edge part of an electric wire. And each connector terminal 1 installed in each of a plurality of electric wires (not shown) is accommodated in a connector terminal accommodation housing (housing) 5 provided with a plurality of accommodation holes 3 (each connector terminal). 1 is inserted into each housing hole 3 and housed), and the wires are connected (conducted) via each connector terminal 1 (see FIGS. 1 and 5). .

  The connector terminal 1 is formed of a plate-like (for example, plate-like) metal material in a predetermined shape (see FIG. 4), and an appropriate bending process is applied to the single material 2 formed in this predetermined shape. It is manufactured by. In addition, the raw material 2 after shaping | molding is flat form, and when it sees from the thickness direction, it has a predetermined shape.

  Here, for convenience of explanation, the longitudinal direction of the connector terminal 1 is defined as the front-rear direction (the insertion / removal direction of the connector terminal 1 with respect to the housing 5), the one direction orthogonal to the longitudinal direction is defined as the lateral direction, The direction orthogonal to the horizontal direction is the vertical direction.

  The outer shape of the connector terminal 1 is generally a quadrangular prism as shown in FIG. The connector terminal 1 is accommodated in the rectangular columnar accommodation hole 3 of the housing 5, so that the connector terminal 1 is installed integrally with the housing 5.

  As shown in FIG. 1, from the state in which a housing 5 (a housing that is separated from the connector terminal 1 and maintains a predetermined appropriate posture) 5 exists on the front side of the connector terminal 1 in the longitudinal direction, By moving the terminal 1 forward, the connector terminal 1 is accommodated in the accommodation hole 3 (accommodation hole arranged in the lateral direction) 3 of the housing 5 and is integrally installed in the housing 5.

  In one housing 5, a plurality of connector terminals 1 are arranged side by side in the horizontal direction. These installed connector terminals 1 are electrically connected to each other adjacent to each other.

  The connector terminal 1 includes a main body part 7, a male contact part (male terminal part) 9, a female contact part (female terminal part) 11, a slit (side slit) 13, a front wall part 15, a rear wall part 17, and a wire connection part 19. And a lance engaging portion 21.

  The main body portion 7 is formed in a rectangular cylindrical shape. The rectangular cylindrical main body part 7 has four side wall parts (first side wall part 23A, second side wall part 23B, third side wall part 23C, and fourth side wall part formed in a rectangular flat plate shape. 23D). The first side wall portion 23 </ b> A is located on one side of the main body portion 7 in the horizontal direction. The second side wall portion 23B faces the first side wall portion 23A and is located on the other side in the horizontal direction of the main body portion 7. The third side wall portion 23 </ b> C is located on one side of the main body portion 7 in the vertical direction. The fourth side wall portion 23D faces the third side wall portion 23C and is located on the other side in the longitudinal direction of the main body portion 7.

  The male contact portion 9 is formed in a plate shape and protrudes from the first side wall portion 23 </ b> A which is one side wall portion in the horizontal direction in the main body portion 7 to one side in the horizontal direction.

  The male contact portion 9 is formed, for example, in a flat plate shape, and the thickness direction is in the vertical direction. The male contact portion 9 is positioned in the middle of the main body portion 7 in the vertical direction, and in the middle of the main body portion 7 in the front-back direction. Is located.

  The female contact portion 11 is provided inside the main body portion 7. As shown in FIGS. 2 to 5, the female contact portion 11 includes a contact portion 25 and a spring portion 27. The contact portion 25 is formed to protrude inward from the fourth side wall portion 23 </ b> D in the main body portion 7. The spring portion 27 is formed to protrude inward from the third side wall portion 23 </ b> C in the main body portion 7. The contact part 25 is located on the other side in the vertical direction, and the spring part 27 is located on one side in the vertical direction.

  The slit 13 is provided in the second side wall portion 23 </ b> B that is the other side wall portion in the horizontal direction of the main body portion 7.

  The slit 13 is located in the middle part of the main body part 7 in the vertical direction, and penetrates through the main body part 7 (second side wall part 23B) in the front-rear direction. By forming the slit 13, the second side wall portion 23B is divided into two parts.

  By providing the slits 13, the main body 7 is not strictly cylindrical, but in this specification, it is assumed that it is cylindrical for convenience of explanation. In addition, the value of the width of the slit 13 (vertical dimension) is tapered at the portions from both ends in the front-rear direction to the vicinity thereof, and increases as it approaches the end. Moreover, the value of the width of the slit 13 in the intermediate portion in the front-rear direction is larger than the thickness value (the dimension in the vertical direction) of the male contact portion 9, and in the vertical direction, the slit 13 is connected to the male contact portion 9. They are located at the same place (in the longitudinal direction, the position of the center of the slit 13 in the longitudinal direction and the position of the center of the male contact portion 9 in the longitudinal direction coincide with each other).

  When a plurality of connector terminals 1 are arranged side by side in one housing 5 and installed at the same time, in the connector terminals 1 adjacent to each other, the male contact portion 9 of one connector terminal 1 is the female of the other connector terminal 1. The connector terminals 1 that are engaged with the contact portion 11 and are adjacent to each other are electrically connected.

  The male contact portion 9 passes through a notch (not shown) formed in the wall portion between the accommodation holes 3 and enters the adjacent accommodation hole 3, and further into the adjacent accommodation hole 3. The main body 7 of the connector terminal 1 accommodated is passed through the slit 13 and is engaged with the female contact 11.

  More specifically, the male contact portion 9 of one connector terminal 1 is sandwiched between the contact portion 25 of the female contact portion 11 of the other connector terminal 1 and the plate-like spring portion 27 with the urging force of the spring portion 27. 5 (the spring part 27 shown in FIG. 5 is elastically deformed downward and the plate-like male contact part 9 is sandwiched between the contact part 25 and the spring part 27), so that the male contact part 9 of one connector terminal 1 is The female contact portion 11 of the other connector terminal 1 is securely engaged.

  When a plurality of connector terminals 1 are arranged in the horizontal direction at the same time in one housing 5, the male contact portion 9 of one connector terminal 1 existing at one end in the horizontal direction is adjacent to the connector terminal 1. Since it does not exist, the female contact portion 11 is not engaged.

  Further, when a plurality of connector terminals 1 are arranged side by side in one housing 5 and installed at the same time, the female contact portion 11 of one connector terminal 1 existing at the other end in the lateral direction is adjacent to the connector terminal 1. Is not engaged with the male contact portion 9.

  As shown in FIG. 2, FIG. 3, and the like, the rear wall portion 17 has an opening on the rear side of the cylindrical main body portion 7 in order to reinforce the cylindrical main body portion 7 and prevent deformation of the main body portion 7. It is provided so as to close this opening. Thereby, the rigidity of the cylindrical main body part 7 is increased, and deformation of the main body part 7 is prevented.

  The wire connecting portion 19 protrudes rearward from the main body portion 7 on the rear side of the cylindrical main body portion 7. The electric wire connecting portion 19 includes a conductive wire holding portion 29 for holding a conductive wire (electric wire conducting wire) that has been stripped after the coating is removed, and a covering holding portion 31 for holding a covered portion of the electric wire. . The conductive wire holding part 29 and the covering holding part 31 hold the electric wire by being caulked (the connector terminal 1 is installed integrally with the end of the electric wire). .

  The lance engaging portion 21 protrudes rearward from the main body portion 7 on the rear side of the cylindrical main body portion 7, and a portion where the lance 33 of the housing 5 engages when the connector terminal 1 is installed on the housing 5. Is angular (the edge 47 is formed as shown in FIG. 2 and the like; the shape is not bent R or chamfered).

  In the connector terminal 1, the rear wall portion 17, the lance engagement portion 21, the conductor holding portion 29, and the covering holding portion 31 are arranged in this order in the front-rear direction.

  As described above, the connector terminal 1 enters the housing hole 3 formed in the housing 5 and is integrally installed in the housing 5. That is, a lance 33 is provided in the accommodation hole 3 as shown in FIG. 5, and the lance engagement portion 21 is engaged with the lance 33, so that the connector terminal 1 installed in the housing 5 is connected to the housing 5. 5 so as not to come out of the receiving hole 3.

  More specifically, as shown in FIG. 1 and the like, a through hole 39 is formed in the wall portion 37 of the accommodation hole 3 (the meat portion existing on the other end side in the longitudinal direction from the accommodation hole 3). The lance 33 is formed at the through hole 39. The base end (rear end) of the lance 33 is connected to the wall (rear wall) of the through hole 39, and the lance 33 protrudes from the wall of the through hole 39 to the front side in a cantilever manner.

  As shown in FIG. 5, an inclined surface 41 is formed in a portion inside the lance 33 (portion on the accommodation hole 3 side; a portion on one end side in the vertical direction). Further, the tip (front end) of the lance 33 is a flat surface 43. Furthermore, a part of the front portion of the lance 33 protrudes into the rectangular columnar accommodation hole 3 in a normal state (a state in which no external force is applied to the lance 33).

  When the connector terminal 1 is being installed in the housing hole 3 of the housing 5, the tip of the connector terminal 1 comes into contact with the inclined surface 41 of the lance 33, so that the lance 33 is elastic as shown by an arrow in FIG. 5. It is designed to deform.

  When the installation of the connector terminal 1 in the housing hole 3 of the housing 5 is completed, the lance 33 is restored as shown in FIG. 5, the flat surface 43 at the tip of the lance 33 comes into contact with the lance engaging portion 21, and the connector terminal 1 is The housing 5 does not come out of the receiving hole 3.

  The front end of the connector terminal 1 is in contact with the contact portion 45 at the bottom of the accommodation hole 3. Accordingly, the connector terminal 1 is sandwiched between the lance 33 and the contact portion 45, and the connector terminal 1 installed in the housing hole 3 of the housing 5 does not move in the front-rear direction with respect to the housing 5. ing.

  In addition, the vertical and horizontal dimensions of the main body portion 7 of the connector terminal 1 are slightly smaller than the vertical and horizontal dimensions of the receiving hole 3, so that the connector terminal 1 installed in the receiving hole 3 of the housing 5 can be connected to the housing 5. Therefore, it does not move vertically and horizontally.

  As described above, the connector terminal 1 is manufactured by forming a plate-shaped metal material into a predetermined shape and bending the material 2 formed into the predetermined shape. The portion of the lance engaging portion 21 of the connector terminal 1 where the flat surface 43 at the tip of the lance 33 abuts is the side surface (the material 2) of the material 2 formed in a predetermined shape, as understood from FIGS. The cut surface of the material 2; a surface orthogonal to both surfaces in the thickness direction of the material 2), and has an edge 47.

  The rear wall portion 17 includes a rear wall main body portion 49 and a folded portion 51. The thickness direction of the rear wall main body portion 49 is the front-rear direction, and is directly connected to the fourth side wall portion 23 </ b> D of the main body portion 7. The folded portion 51 has a longitudinal direction in the thickness direction and is directly connected to the rear wall main body portion 49. Moreover, the folding | returning part 51 is located inside the cylindrical main-body part 7, and overlaps and contacts the 3rd side wall part 23C (refer FIG. 3 etc.).

  When the rear wall portion 17 is viewed from the lateral direction, the rear wall main body portion 49 and the folded portion 51 have an “L” shape.

  Moreover, as shown in FIG. 2 etc., the rear wall part 17 is formed with a notch 53 connected to the slit 13 of the second side wall part 23B. The cutout 53 penetrates the rear wall main body portion 49 in the thickness direction.

  The notch 53 is located at the same position as the slit 13 in the vertical direction, and is provided from the other end to the intermediate portion in the horizontal direction. As a result, the notch 53 is formed to be connected to the slit 13. The notch 53 does not reach one end in the horizontal direction.

  The width of the notch 53 is substantially equal to the width of the slit 13 (the width of the end portion in the front-rear direction) at the other end in the horizontal direction, and gradually decreases toward the one end. The width of the slit 13 at the intermediate portion in the front-rear direction is substantially equal.

  As shown in FIG. 1 and the like, the front wall portion 15 includes a front wall main body portion 55 and a folded portion 57. The thickness direction of the front wall main body portion 55 is the front-rear direction, and is directly connected to the fourth side wall portion 23 </ b> D of the main body portion 7. The folded portion 57 has a vertical thickness direction and is directly connected to the front wall body portion 55. The folded portion 57 is located outside the cylindrical main body 7 and is in contact with the third side wall 23C.

  When the front wall portion 15 is viewed from the lateral direction, the front wall main body portion 55 and the folded portion 57 have an “L” shape.

  The front wall portion 15 is also formed with a notch 59 connected to the slit 13 of the second side wall portion 23B in the same manner as the rear wall portion 17. The notch 59 penetrates the front wall main body portion 55 in the thickness direction.

  The cutout 59 is located at the same position as the slit 13 in the vertical direction, and is provided from the other end to the intermediate portion in the horizontal direction, similarly to the cutout 53 of the rear wall portion 17. As a result, the notch 59 is formed to be connected to the slit 13. The notch 59 does not reach one end in the horizontal direction.

  Similarly to the notch 53 of the rear wall portion 17, the width of the notch 59 is substantially equal to the width of the slit 13 (the width of the end portion in the front-rear direction) at the other end in the lateral direction, and goes toward one end. Accordingly, the width of the slit 13 is almost equal to the width of the slit 13 in the middle portion in the front-rear direction.

  According to the connector terminal 1, the rear wall portion 17 is provided in the opening on the rear side of the cylindrical main body portion 7 in order to prevent deformation of the cylindrical main body portion 7. As a result, the opening on the rear side of the cylindrical main body portion 7 is closed, so that the strength of the main body portion 7 is increased and it is difficult to deform even when an external force is applied.

  Further, if the rear wall portion 17 is not provided in the connector terminal 1, the strength of the main body portion 7 is extremely reduced due to the provision of the slit 13, but the rear wall portion 17 is provided. As a result, the strength of the main body 7 is improved to such a degree that it can sufficiently withstand practical use.

  Further, according to the connector terminal 1, the rear wall portion 17 is formed by bending, so that the end portion of the main body portion 7 has a small arc (bending R) 61 (see FIG. 2) even if it exists. Since the provided lance engaging portion 21 is angular, the connector terminal 1 installed in the housing 5 can be securely fixed.

  According to the connector terminal 1, since the notch 53 (59) connected to the slit 13 is formed in the rear wall portion 17 (front wall portion 15), the female of the connector terminal (first connector terminal) 1 is formed. When the male contact portion 9 of the other one of the junction terminals (second connector terminal) 1 is joined to the contact portion 11, the male contact portion 9 of the second connector terminal 1 is connected to the first connector terminal 1. It is easy to put in the main body 7.

  In the connector terminal 1, as shown in FIG. 6 and FIG. 7, the folded portion 51 is divided into two portions (63, 65) in the lateral direction, and the portion (folded portion) 51 on the distal end side of the rear wall portion 17. Thus, a configuration may be adopted in which one side wall portion (third side wall portion 23C) of the main body portion 7 is sandwiched.

That is, the part (inner part) 63 is located inside the cylindrical main body 7 and is in contact with the third side wall 23C, and the part (outer part) 65 is the cylindrical main body. 7 may be in contact with the third side wall 23C, overlapping with the third side wall 23C.
The folded portion 51 is divided into a plurality of three or more portions in the lateral direction, and one side wall portion (third side wall portion) of the main body portion 7 is formed at the tip portion side (folded portion) 51 of the rear wall portion 17. 23C) may be sandwiched.

  As described above, since the folded-back portion 51 of the rear wall portion 17 sandwiches the third side wall portion 23C of the main body portion 7, the cylindrical main body portion 7 is further hardly deformed.

  A portion (folded portion) 57 on the front end portion side of the front wall portion 15 sandwiches one side wall portion (third side wall portion 23C) of the main body portion 7 similarly to the folded portion 51 of the rear wall portion 17. You may comprise.

DESCRIPTION OF SYMBOLS 1 Connector terminal 2 Material 5 Housing 7 Main body part 9 Male contact part 11 Female contact part 13 Slit 17 Rear wall part 21 Lance engagement part 23A 1st side wall part 23B 2nd side wall part 23C 3rd side wall part 33 Lance 51 Tip side part (folded part)
53 Notch

Claims (4)

In the connector terminal manufactured by forming a plate-shaped metal material into a predetermined shape and bending the material formed in this predetermined shape,
A main body formed in a rectangular tube shape;
A male contact portion protruding from the first side wall portion which is one side wall portion in the lateral direction in the main body portion;
A female contact provided inside the main body,
A slit provided in the second side wall part which is the other side wall part in the horizontal direction in the main body part;
In order to prevent deformation of the main body, a rear wall provided in an opening on the rear side of the main body,
A connector terminal comprising: In the connector terminal according to claim 1,
It has a lance engaging portion that protrudes rearward from the main body portion on the rear side of the cylindrical main body portion, and has a square portion where the lance of the housing engages when installed on the housing. Connector terminal. In the connector terminal according to claim 1 or 2,
The connector terminal, wherein the rear wall is formed with a notch connected to the slit. In the connector terminal according to any one of claims 1 to 3,
The connector terminal, wherein the rear wall portion has a configuration in which one side wall portion of the main body portion is sandwiched between the rear wall portions.

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