CN212648544U - Female terminal for connector - Google Patents

Abstract

A female terminal for a connector is a curled strip which is integrally punched, folded and formed, an opening is formed above the rear end part of the female terminal, and the female terminal sequentially comprises a movement limiting section, an electric wire cohesion section, a lead cohesion section, a rotation limiting section and a male terminal connecting end from back to front; the movable limiting section, the electric wire cohesion section and the lead cohesion section are semi-surrounding segments formed by bending at one time and are bent along the same straight line; the rotation limiting section is a bending section which is bent for multiple times, and the surfaces of two sides after bending are planes; the male terminal connecting end is provided with a plug hole; wherein, remove spacing section and be used for restricting female terminal for the connector back-and-forth movement, the electric wire cohesion section is used for cohesion electric wire outer rubber, and the wire cohesion section is used for cohesion electric wire inlayer wire, rotates spacing section and is used for restricting female terminal rotatory for the connector, and public terminal link is used for mating public terminal.

Description

Female terminal for connector

Technical Field

The utility model relates to a female terminal, concretely relates to female terminal that is arranged in line to board or line to line connector.

Background

The terminals are electrical connection elements commonly found in wire-to-board or wire-to-wire connectors, the function of which is to make electrical connection by inserting a PIN (i.e., male terminal).

The female end of the existing connector generally includes a connector plastic body, a female terminal and an electric wire, wherein one end of the female terminal is inserted into the connector plastic body, the other end of the female terminal is connected with the electric wire (generally, the connection is realized by welding), and a PIN of a male end is inserted into the female terminal to realize the electric connection.

However, when the working condition of the connector is severe, if the equipment using the connector often shakes or the equipment is carried for many times, the wire is pulled back and forth, so that the female terminal in the connector is relatively displaced or twisted with respect to the connector, the female terminal is easily separated from the connector or the wire is separated from the female terminal, and the connector is in poor contact, and the operation of the whole equipment is finally affected.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The utility model aims at providing a female terminal for connector

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a female terminal for a connector is a curled strip with an opening above the rear end, and the front end of the female terminal is provided with a plug hole for plugging and positioning a male terminal;

the female terminal is integrally formed by punching, folding and bending, the bending angles are all round corners, and a moving limiting section, an electric wire cohesion section, a lead cohesion section, a rotation limiting section and the inserting hole are sequentially arranged on the female terminal from back to front;

the movable limiting section, the electric wire cohesion section and the conducting wire cohesion section are all sections formed by bending at one time, and the folding line is a straight line extending along the front-back direction;

the two sides of the bending angle of the movable limiting section are connected with a pair of first wing-shaped side surfaces which are symmetrical relative to the folding line, and an upward opening is formed between the two first wing-shaped side surfaces;

the two sides of the bending angle of the electric wire holding section are connected with a pair of second wing-shaped side surfaces which are symmetrical relative to the folding line, and an upward opening is formed between the two second wing-shaped side surfaces;

the two sides of the bending angle of the wire embracing section are connected with a pair of third wing-shaped side surfaces which are symmetrical relative to the folding line, and an upward opening is formed between the two third wing-shaped side surfaces;

the rotary limiting section is a bending section which is bent for multiple times, two side edges of the rotary limiting section are in butt joint in the middle of the upper surface of the rotary limiting section in a bending state to form a closed gap, the closed gap of the rotary limiting section extends in the front-back direction, and two side surfaces, which are symmetrical relative to the closed gap, of the rotary limiting section are planes.

Furthermore, in a cross section perpendicular to the front-back direction, the cross section of the movable limiting section is in a hairpin shape, the opening of the hairpin is upward, the lower end of the hairpin is an arc, two ends of the arc are connected with line segments extending upward to form two side support legs of the hairpin, and the two side support legs are the cross sections of two first wing-shaped side surfaces.

Furthermore, in the cross section perpendicular to the front-back direction, the cross section of the wire clasping section is in a hairpin shape, the opening of the hairpin is upward, the lower end of the hairpin is in a circular arc, the two ends of the circular arc are connected with wire segments extending upwards to form two side support legs of the hairpin, the two side support legs are the cross sections of the second wing-shaped side surfaces, and the length of the wire segments in the cross section of the wire clasping section is smaller than the length of the wire segments in the cross section of the movable limiting section.

Furthermore, in a cross section perpendicular to the front-back direction, the cross section of the wire clasping section is in a hairpin shape, the opening of the hairpin is upward, the lower end of the hairpin is an arc, two ends of the arc are connected with line segments extending upwards to form two side support legs of the hairpin, the two side support legs are cross sections of the two third wing-shaped side surfaces, and the length of the line segment in the cross section of the wire clasping section is smaller than the length of the line segment in the cross section of the wire clasping section.

Furthermore, the rotation limiting section is a bending section bent for four times, so that in the section perpendicular to the front-back direction, the section of the rotation limiting section is square, a gap is arranged in the middle of the upper side of the square, and the gap is a section of a closed gap of the rotation limiting section.

Furthermore, the female terminal also comprises a male terminal connecting section, and the plug hole is positioned in the male terminal connecting section;

the male terminal connecting section is in a cylindrical shape with a cutting gap at the front end, the cutting gap extends along the front-back direction and penetrates through the cylindrical wall of the male terminal connecting section in the up-down direction, and therefore the front end of the male terminal connecting section is divided into two semi-cylindrical parts.

Further, public terminal linkage segment is followed and is divided into cylinder section, shrinkage section and division section in proper order to the place ahead from the back, shrinkage section and division section constitute the preceding tip of public terminal linkage segment with the division section of opening, are equipped with on shrinkage section and the division section of opening the cutting gap, shrinkage section and division section are two lamellas promptly and constitute, and the diameter of shrinkage section reduces from the back to preceding gradually, and the diameter of division section is followed the back and is crescent forward, and the diameter minimum end of shrinkage section and the diameter minimum end fixed connection of division section open.

Furthermore, be equipped with the elasticity barb on the lower surface that rotates spacing section, elasticity barb one end is connected at the lower surface that rotates spacing section, and other end slant rear extends to constitute an included angle towards the back with the lower surface that rotates spacing section.

The relevant content in the above technical solution is explained as follows:

1. in the above-mentioned scheme, the electric wire cohesion section is under the state of connecting wire, and the fillet form angle of bending of electric wire cohesion section can hold the below of the outer rubber of electric wire, and two second wing form sides of electric wire cohesion section can curl and dock to the centre to this embraces the outer rubber of electric wire, prevents that the electric wire from droing under the condition of rocking.

2. In the above scheme, the section of the movable limiting section perpendicular to the front-back direction is in a hairpin shape, and in the state that the female terminal is connected in the connector, two first wing-shaped side surfaces of the movable limiting section are in a vertical extending state, so that the movable limiting section can be clamped in the connector, and the front and back movement of the female terminal is limited.

3. In the above-mentioned scheme, the wire cohesion section is under the state of connecting wire, and the angle of bending of wire cohesion section can hold the below of wire (generally be the copper conductor), and two third airfoil sides of wire cohesion section can curl to the centre respectively, and a third airfoil side curls and embraces a part wire, and another third airfoil side curls and embraces another part wire, prevents that the wire from droing under the condition of rocking, and the cooperation the outer rubber of electric wire is embraced to the wire cohesion section for the female terminal is more firm reliable with being connected of electric wire.

4. In the above-mentioned scheme, it is the plane to rotate spacing section for its both sides surface that closed gap is symmetrical, and is square in the cross-section of perpendicular to fore-and-aft direction to this is under the state that female terminal connects in the connector, and the both sides plane of rotating spacing section can laminate the connector inner wall, and because it is square to rotate spacing section cross-section, consequently rotates spacing section and can restrict female terminal and rotate for the connector, avoids the angle to twist the condition that takes place female terminal and drop from the connector.

5. In the above scheme, according to the length of the line segment of the hairpin-shaped support leg in the cross section, the sequence from long to short is: remove spacing section, electric wire cohesion section and wire cohesion section to this when female terminal connecting wire and setting in the connector, remove spacing section and be the highest in the female terminal in the ascending overall height of upper and lower direction, can make and remove spacing section card in the connector.

6. In the above aspect, the male terminal connecting section is in a tubular shape having a cutting slit at a front end thereof, and the cutting slit divides the front end of the male terminal connecting section into two parts, and a margin is left between the left and right parts, so that necking can be performed to form a diameter reduction part of the contraction section and the expansion section.

7. In the above scheme, the diameter of shrink section reduces from back to front gradually, the diameter of opening the section increases from back to front gradually to the front end of this section of opening constitutes a great mouth that opens of diameter, makes things convenient for the male terminal to insert, and the diameter of shrink section is for reducing gradually, can press from both sides tight male terminal with this, makes male terminal and female terminal connect firmly.

8. In the above-mentioned scheme, be equipped with the elasticity barb on the lower surface that rotates spacing section, the elasticity barb constitutes an contained angle towards the back with the lower surface that rotates spacing section to this elasticity barb can block establishes in the recess in the connector, prevents to cause female terminal to break away from the connector because the electric wire pulls.

The working principle of the utility model is as follows:

the movable limiting section, the electric wire cohesion section, the lead cohesion section, the rotary limiting section and the male terminal connecting section are sequentially connected on the female terminal from back to front, and the female terminal is integrally formed by punching, folding and folding;

the mobile limiting section is used for limiting the female terminal to move back and forth relative to the connector, the electric wire cohesion section is used for cohesion of an outer rubber layer of an electric wire, the conducting wire cohesion section is used for cohesion of a conducting wire on an inner layer of the electric wire, the rotation limiting section is used for limiting the female terminal to rotate relative to the connector, and the male terminal connecting end is used for matching a male terminal;

in a state where the female terminal, the electric wire and the connector are connected:

the two first wing-shaped side surfaces of the movable limiting section are in an up-and-down standing state, so that the overall height of the movable limiting section in the up-and-down direction is the highest in the female terminal, and therefore when the female terminal is inserted into the connector, the movable limiting section can be clamped in the connector to prevent the female terminal from moving back and forth;

the two second wing-shaped side surfaces of the wire holding section are in a curling state, and two sides of the two second wing-shaped side surfaces are butted on the wire so as to hold the outer layer rubber of the wire;

the two third wing-shaped side surfaces of the wire embracing section are in a curling state, and the two third wing-shaped side surfaces are respectively curled, wherein one third wing-shaped side surface is curled and embraces one part of the wires, and the other third wing-shaped side surface is curled and embraces the other part of the wires so as to embrace the inner layer wires of the wires and enable the female terminal to be more firmly connected with the wires;

the section of the rotation limiting section is square, so that planes on two sides of the rotation limiting section can be attached to the inner wall of the connector to limit the female terminal to rotate in the connector, and the rotation limiting section is provided with an elastic barb which can be clamped in a clamping groove in the inner wall of the connector and is matched with the movement limiting end to limit the female terminal to move back and forth;

the diameter of the contraction section of the male terminal connecting end is gradually reduced from back to front, so that the male terminal is held tightly, and the female terminal and the male terminal are prevented from being separated.

The utility model has the advantages as follows:

firstly, effectively prevent female terminal dropout: the movement limiting section can prevent the female terminal from moving back and forth relative to the connector, and the rotation limiting section can prevent the female terminal from rotating relative to the connector.

Secondly, effectively preventing the electric wire from falling off: the electric wire cohesion section with the outer rubber and the inlayer wire of electric wire can be cohesion respectively to the wire cohesion section, prevent that the electric wire breaks away from female terminal.

Thirdly, the connection with the male terminal is reliable: the male terminal connecting end can clamp the male terminal, and the female terminal is prevented from being connected with the male terminal and loosening.

Drawings

Fig. 1 is a front view of a female terminal;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view of C-C of FIG. 1;

FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1;

FIG. 6 is an enlarged view of a portion E of FIG. 1;

FIG. 7 is a cross-sectional view F-F of FIG. 6;

fig. 8 is a side view of the female terminal;

fig. 9 is a perspective view of the female terminal;

fig. 10 is a perspective view of the female terminal in the state of being inserted into the connector;

fig. 11 is a front view of the female terminal assembly in the connector;

FIG. 12 is a cross-sectional view G-G of FIG. 11;

in the above drawings: 1. inserting holes; 2. moving the limiting section; 201. a first wing-like side; 3. a wire looping section; 301. a second wing side; 4. a wire looping section; 401. a third airfoil side; 5. rotating the limiting section; 501. elastic barbs; 6. a male terminal connection section; 601. cutting a gap; 602. a cylinder section; 603. a contraction section; 604. opening the section; 7. folding lines; 8. closing the gap; 9. a connector; 10. connecting holes; 11. a locking hole.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): female terminal for connector

The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

The terms "first," "second," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

The terms "front", "rear", "upper", "lower", "left" and "right" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the specific direction of the protective reaction and the practical implementation of the present invention.

Referring to fig. 1 to 12, a female terminal for a connector is a curled strip with an opening above a rear end, a male terminal connecting section 6 is arranged at a front end of the female terminal, and a plugging hole 1 is arranged in the male terminal connecting section 6 and used for plugging and positioning a male terminal;

as shown in fig. 1 to 9, the female terminal sequentially includes a moving limiting section 2, an electric wire looping section 3, a lead looping section 4, a rotating limiting section 5 and the male terminal connecting section 6 from back to front; the female terminal is a curled strip which is integrally punched, folded and formed, and is of a bilaterally symmetrical structure relative to a folding line 7 when being observed towards the opening direction, the folding line 7 extends along the front-back direction, and the bending angles are all round angles;

the movable limiting section 2, the electric wire cohesion section 3 and the wire cohesion section 4 are all formed sections formed by bending once, and the bending fold lines of all the sections are the same straight line, namely the fold line 7.

The two sides of the bending angle of the movable limiting section 2 are connected with a pair of first wing-shaped side surfaces 201 which are symmetrical relative to the folding line 7, and an opening of the movable limiting section 2 is formed between the two first wing-shaped side surfaces 201 and faces upwards;

preferably, as shown in fig. 2, in a cross section perpendicular to the front-back direction, the cross section of the movement limiting section 2 is in a shape of a hairpin symmetrical left-right, an opening of the hairpin faces upward, a lower end of the hairpin is an arc, the left end and the right end of the arc are respectively connected with an upward oblique straight line segment, the two upward and downward extending straight line segments are connected to the two upward and downward oblique straight line segments, the two upward and downward extending straight line segments form two side legs of the hairpin, and the two side legs are the cross sections of the two first wing-shaped side surfaces 201.

The two sides of the bending angle of the electric wire looping section 3 are connected with a pair of second wing-shaped side surfaces 301 which are symmetrical relative to the folding line 7, and an opening of the electric wire looping section 3 is formed between the two second wing-shaped side surfaces 301 and is upward;

preferably, as shown in fig. 3, in a cross section perpendicular to the front-back direction, the cross section of the wire looping section 3 is a V-shaped hairpin shape which is symmetrical left and right, an opening of the hairpin is upward, a lower end of the hairpin is an arc, oblique upward straight segments are connected to left and right ends of the arc respectively to form two side legs of the hairpin, the two side legs are the cross sections of the two second wing-shaped side surfaces 301, and a length of the wire in the cross section of the wire looping section 3 is smaller than a length of the wire in the cross section of the movement limiting section 2.

The two sides of the bending angle of the wire clasping section 4 are connected with a pair of third wing-shaped side surfaces 401 which are symmetrical relative to the folding line 7, and an opening of the wire clasping section 4 is formed between the two third wing-shaped side surfaces 401 and is upward;

preferably, as shown in fig. 4, in a cross section perpendicular to the front-back direction, the cross section of the wire looping section 4 is a V-shaped hairpin which is symmetrical left and right, an opening of the hairpin faces upward, a lower end of the hairpin is an arc, two oblique straight-line segments are connected to left and right ends of the arc respectively to form two side legs of the hairpin, the two side legs are cross sections of the two third airfoil-shaped side surfaces 401, and a length of the wire segment in the cross section of the wire looping section 4 is smaller than a length of the wire segment in the cross section of the wire looping section 3.

The rotary limiting section 5 is a bending section bent for four times, the left side edge and the right side edge of the bending section are butted in the middle of the upper surface of the rotary limiting section 5 after being bent to form a closed gap 8, the closed gap 8 of the rotary limiting section 5 extends along the front-back direction, and the left side surface and the right side surface of the rotary limiting section 5, which are symmetrical relative to the closed gap 8, are planes;

preferably, as shown in fig. 5, the cross section of the rotation limiting section 5 in the cross section perpendicular to the front-back direction is square, a gap is arranged in the middle of the upper side of the square, and the gap is a cross section of a closed gap 8 of the rotation limiting section 5;

preferably, be equipped with elasticity barb 501 on rotating spacing section 5's the lower surface, elasticity barb 501 one end is connected at the lower surface of rotating spacing section 5, and other end slant rear extends to constitute an included angle towards the back with the lower surface of rotating spacing section 5.

The male terminal connecting section 6 is a cylinder with a cutting slit 601 at the front end, the cutting slit 601 extends along the front-back direction and penetrates the cylinder wall of the male terminal connecting section 6 in the up-down direction, so that the front end of the male terminal connecting section 6 is divided into two semi-cylinders;

preferably, as shown in fig. 6, the male terminal connecting section 6 is sequentially divided into a cylindrical section 602, a contracting section 603 and an expanding section 604 from the back to the front, the contracting section 603 and the expanding section 604 form the front end of the male terminal connecting section 6, the cutting slit 601 is arranged on the contracting section 603 and the expanding section 604, that is, the contracting section 603 and the expanding section 604 are both composed of two pieces, the diameter of the contracting section 603 gradually decreases from the back to the front, the diameter of the expanding section 604 gradually increases from the back to the front, and the minimum diameter end of the contracting section 603 is fixedly connected with the minimum diameter end of the expanding section 604.

As shown in fig. 10 to 12, a connector 9 mated with the female terminal is provided with a plurality of connecting holes 10 and a plurality of locking holes 11, the connecting holes 10 are used for inserting and assembling the female terminal, when the female terminal is inserted and assembled in the connecting holes 10, the elastic barbs 501 can be locked in the locking holes 11, thereby limiting the movement of the female terminal.

Other embodiments and structural changes of the present invention are described below as follows:

1. in the above embodiment, it is hairpin form to remove spacing section 2, electric wire cohesion section 3 and wire cohesion section 4 in the cross-section of perpendicular to fore-and-aft direction, can also be recess form or other half surround shapes, as long as can form the structure of closed shape in the cross-section with left and right sides limit butt joint back, all should contain the utility model discloses in, all should be included into the utility model discloses a protection scope. As would be understood and accepted by those skilled in the art.

2. In the above embodiment, the cross-section of the rotation limiting section 5 in the cross-section perpendicular to the front-back direction is square, and can also be a hexagon or other polygons, as long as the left and right sides face that can make the rotation limiting section 5 is a planar cross-sectional shape, all should be included the utility model discloses an in, all should be included the protection scope of the utility model. As would be understood and accepted by those skilled in the art.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (8)

1. The utility model provides a female terminal for connector, this female terminal have the curling form of opening one's mouth up for the rear end portion, and female terminal front end portion is equipped with spliced eye (1) for insert and organize location male terminal, its characterized in that:

the female terminal is integrally formed by punching, folding and bending, bending angles are all round corners, and a moving limiting section (2), an electric wire cohesion section (3), a lead cohesion section (4), a rotating limiting section (5) and the inserting hole (1) are sequentially arranged on the female terminal from back to front;

the movable limiting section (2), the electric wire cohesion section (3) and the wire cohesion section (4) are all segments formed by bending at one time, and the folding line (7) is a straight line extending along the front-back direction;

the two sides of the bending angle of the movable limiting section (2) are connected with a pair of first wing-shaped side surfaces (201) which are symmetrical relative to the folding line (7), and an upward opening is formed between the two first wing-shaped side surfaces (201);

the two sides of the bending angle of the electric wire holding section (3) are connected with a pair of second wing-shaped side surfaces (301) which are symmetrical relative to the folding line (7), and an upward opening is formed between the two second wing-shaped side surfaces (301);

the two sides of the bending angle of the wire embracing section (4) are connected with a pair of third wing-shaped side surfaces (401) which are symmetrical relative to the folding line (7), and an upward opening is formed between the two third wing-shaped side surfaces (401);

the rotary limiting section (5) is a segment formed by bending for many times, two side edges of the rotary limiting section (5) are butted in the middle of the upper surface of the rotary limiting section (5) in a bending state to form a closed gap (8), the closed gap (8) of the rotary limiting section (5) extends along the front-back direction, and two side surfaces, which are symmetrical relative to the closed gap (8), of the rotary limiting section (5) are planes.

2. The female terminal of claim 1, wherein: in the section perpendicular to the front-back direction, the section of the movable limiting section (2) is hairpin-shaped, the opening of the hairpin-shaped section is upward, the lower end of the hairpin-shaped section is a circular arc, two ends of the circular arc are connected with line segments extending upwards to form two side supporting legs of the hairpin-shaped section, and the two side supporting legs are the sections of the two first wing-shaped side surfaces (201).

3. The female terminal of claim 1, wherein: in the cross section of perpendicular to fore-and-aft direction, the cross section of electric wire cohesion section (3) is hairpin form, and the opening of this hairpin form is up, and hairpin form lower extreme is the circular arc, and the circular arc both ends are connected with the line segment that upwards extends, constitute the both sides stabilizer blade of hairpin form, and this both sides stabilizer blade is two the cross section of second wing form side (301), and the line segment length in the cross section of electric wire cohesion section (3) is less than the line segment length in the cross section of removal spacing section (2).

4. The female terminal of claim 1, wherein: in the cross section perpendicular to the front-back direction, the cross section of the wire clasping section (4) is hairpin-shaped, the opening of the hairpin-shaped is upward, the lower end of the hairpin-shaped is circular arc, the two ends of the circular arc are connected with wire segments extending upwards to form two side support legs of the hairpin-shaped, the two side support legs are the cross sections of the third wing-shaped side surfaces (401), and the length of the wire segment in the cross section of the wire clasping section (4) is smaller than the length of the wire segment in the cross section of the wire clasping section (3).

5. The female terminal of claim 1, wherein: the rotary limiting section (5) is a bent section bent for four times, so that in the section perpendicular to the front-back direction, the section of the rotary limiting section (5) is square, a gap is arranged in the middle of the upper side of the square, and the gap is the section of a closed gap (8) of the rotary limiting section (5).

6. The female terminal of claim 1, wherein: the female terminal also comprises a male terminal connecting section (6), and the plug hole (1) is positioned in the male terminal connecting section (6);

the male terminal connecting section (6) is in a cylindrical shape with a cutting slit (601) at the front end, the cutting slit (601) extends in the front-rear direction and penetrates the cylindrical wall of the male terminal connecting section (6) in the up-down direction, so that the front end of the male terminal connecting section (6) is divided into two semi-cylindrical shapes.

7. The female terminal of claim 6, wherein: public terminal linkage segment (6) are followed and are divided into cylinder section (602), shrink section (603) and open section (604) to the place ahead in proper order from the back, shrink section (603) and open section (604) constitute the front end portion of public terminal linkage segment (6), are equipped with on shrink section (603) and the section (604) of opening cutting gap (601), and shrink section (603) and the section (604) of opening are two lamella and constitute promptly, and the diameter of shrink section (603) reduces from the back before gradually, and the diameter of the section (604) of opening increases from the back before gradually, and the diameter minimum end of shrink section (603) and the diameter minimum end fixed connection of the section (604) of opening.

8. The female terminal of claim 1, wherein: be equipped with elasticity barb (501) on the lower surface of rotating spacing section (5), elasticity barb (501) one end is connected at the lower surface of rotating spacing section (5), and other end slant rear extends to constitute an mouthful contained angle forward with the lower surface that rotates spacing section (5).

Images