WO2011125727A1

WO2011125727A1 - Female terminal

Info

Publication number: WO2011125727A1
Application number: PCT/JP2011/057994
Authority: WO
Inventors: 吉田　和生; 幸大川村
Original assignee: 古河電気工業株式会社; 古河As株式会社
Priority date: 2010-03-31
Filing date: 2011-03-30
Publication date: 2011-10-13
Also published as: CN102834981B; JP5435516B2; CN102834981A; JPWO2011125727A1

Abstract

Disclosed is a female terminal that can reliably conduct electricity while suppressing an increase in the insertion force on the fitting means of an insertion tab on a male terminal. The female crimp terminal (1) is equipped with a box (2) that permits the insertion of the insertion tab (300) on the male terminal, wherein the box (2) is equipped with an elastic contact piece (21) that elastically comes into contact with the inserted insertion tab (300) and an inner roof section (22b) that faces the elastic contact piece (21) and fits the inserted insertion tab (300) by sandwiching the tab with the elastic contact piece (21), semispherical projections (81) that project toward the elastic contact piece (21) are formed on the inner roof section (22b), front semispherical projections (81b) are disposed relative to rear semispherical projections (81a) in positions intersecting the insertion direction (X) of the insertion tab (300), and diagonal beads (80) having semispherical projections (81) formed on both ends thereof are disposed in the surface of the inner roof section (22b) in a manner intersecting with the width direction (Y).

Description

Female terminal

For example, it relates to a female terminal to be attached to a connector or the like for connecting an automobile wire harness.

Conventionally, a large number of wire harnesses are routed in an automobile, and these wire harnesses are connected by connectors. In such a connector, a crimp terminal that is crimped and fixed to each of the covered electric wires constituting the wire harness is included.

Such a crimp terminal has a pair of a male terminal with a flat insertion tab and a female terminal with a box part that allows insertion of the insertion tab, and each connector is connected to a covered electric wire. It is installed inside.

The box portion of the female terminal sandwiches the inserted insertion tab between the elastic contact portion that elastically contacts the inserted insertion tab and the fixed contact portion that faces the elastic contact portion. It is the structure which connects electrically and physically and fits.

In recent years, the number of terminals in connectors tends to increase as the circuit configuration of automobiles becomes more complex. When the number of terminals is increased in this way, a large insertion force is required for the fitting connection between the connectors having the terminals as described above. Therefore, in order to facilitate the connector fitting operation, it is strongly desired to reduce the insertion force of the male terminal into the female terminal.

However, if the contact load is reduced with an emphasis on facilitating the connector mating operation, there is a problem that the connection reliability in the mated state is lowered. Specifically, if the contact load is low, the terminal surface may be oxidized, micro-sliding friction may occur, the contact resistance of both terminals may increase due to the effects of heat or vibration, and the energized state may be momentarily disconnected. .

In order to solve such a problem, a female terminal has been proposed in which the dimples formed in the elastic contact portion are multipointed (Patent Document 1).
In this female terminal, with respect to the insertion tab inserted into the box portion, a plurality of convex portions as dimples formed on the elastic contact portion that sandwiches and fits the insertion tab together with the fixed contact portion are provided at different positions in the width direction. And a plurality of convex portions serving as beads formed in the fixed contact portion at different positions in the width direction.

With this configuration, the female terminal of Patent Document 1 has a plurality of convex portions provided in the box portion, so that the inserted insertion tab is difficult to rotate and vibration resistance characteristics are improved. Therefore, it is not necessary to improve the spring performance of the elastic contact portion and increase the contact load between the convex portion and the insertion tab, and the insertion force of the insertion tab to the box portion of the female terminal does not increase, and the It is said that the fitted state can be realized.

However, recent automobiles are required to be lighter in light of energy saving, and the miniaturization of terminals is progressing along with the thinning of wire harnesses. As described above, when miniaturization of the terminal proceeds, it becomes difficult in terms of space to form a plurality of convex portions at different positions in the width direction as in the prior art document 1.

In addition, even when a plurality of protrusions can be formed at different positions in the width direction, all the protrusions that secure a contact area corresponding to the complexity of the circuit configuration and the increase in current in the automobile are all in the width direction. It is difficult to arrange them at different positions. Therefore, it is necessary to arrange convex portions at different positions in the insertion direction of the female terminal of the insertion tab into the box portion.

However, when the convex portion is simply arranged along the insertion direction, the convex portion on the front side in the insertion direction slides on the insertion tab where the convex portion on the rear side in the insertion direction has already slid. As described above, when the convex portion further slides at the position where the other convex portion has already slid, the sliding resistance of the convex portion in the insertion tab increases, and there is a problem that the insertion force becomes high.

JP 2009-37741 A

An object of the present invention is to provide a female terminal that can reliably conduct electricity while suppressing an increase in insertion force of the male terminal into the fitting means of the insertion tab.

The present invention is a female terminal provided with fitting means for allowing insertion of an insertion tab in a male terminal, wherein the fitting means elastically contacts with the inserted insertion tab. And an opposing contact portion that opposes the elastic contact portion and fits the inserted insertion tab sandwiched between the elastic contact portions. The opposing contact portion faces the elastic contact portion side. Two or more projecting portions that protrude in the manner described above, and one of the two or more projecting portions intersects the other projecting portion with respect to the insertion direction of the insertion tab into the fitting means. When two of the convex portions are formed as a convex portion set, at least one convex portion set is in the width direction perpendicular to the insertion direction in the surface of the opposed contact portion. Are arranged so as to cross each other.

The fitting means is referred to as a so-called box portion, and is a means that allows insertion of an insertion tab of a male terminal, and can be electrically and physically connected and fitted. Moreover, the said female terminal provided with the fitting means can be used as the crimp terminal provided with the crimp part which crimps | bonds the exposed electric wire part which the covered electric wire which comprises a wire harness exposes, and a coating | coated part. The crimping part may be a crimping part of any type such as an open barrel type or a closed barrel type, and may be configured to be electrically and physically connected by, for example, ultrasonic welding. .

The opposing contact portion may be a part of a fixed portion in a fitting means such as a box portion of a female terminal or a movable portion provided in the fixed portion.
The convex part is a convex part formed in a part of a shape having a length in the insertion direction, such as a substantially semicircular cross-sectional bar shape called a bead or a substantially rectangular cross-sectional bar shape, or a convex part formed independently of each other. Part.

Arranging another convex portion with respect to one convex portion of the two or more convex portions at a position intersecting the insertion direction of the insertion tab into the fitting means means that two convex portions The direction line connecting the centers of the parts on the opposing contact part is arranged at a position where it intersects the insertion direction.

When two of the convex portions are formed as a convex portion set, at least one convex portion set is arranged so as to intersect the width direction orthogonal to the insertion direction in the opposing contact portion plane. For example, when there are three convex parts, three convex part sets can be configured, and since the arrangement direction of one of the convex part sets intersects the width direction, at least three convex parts Of these, the two convex portions are arranged at different positions with respect to the insertion direction.

Therefore, while arranging another convex part with respect to one convex part among two or more convex parts in the position which intersects with the insertion direction to the fitting means of the insertion tab, When two of them are formed as a convex portion set, at least one convex portion set is arranged so as to intersect with the width direction orthogonal to the insertion direction in the opposed contact portion plane. , Two convex portions arranged in an oblique direction with respect to the insertion direction, or three convex portions arranged in a V shape, an inverted V shape or a width shape with respect to the width direction with respect to the insertion direction, and an italic type with respect to the insertion direction It can be set as four convex parts arrange | positioned at N character shape, C shape, or reverse C shape.

According to the present invention, it is possible to reliably conduct electricity while suppressing an increase in insertion force of the male terminal into the fitting means of the insertion tab.
Specifically, two or more convex portions are formed in the opposed contact portion, and the insertion tab is sandwiched and fitted between the opposed contact portion and the elastic contact portion, so that a contact area is ensured and reliable conductivity is realized. Can do.

Moreover, while arrange | positioning another convex part with respect to one convex part among two or more convex parts in the position which cross | intersects with respect to the insertion direction to the said fitting means of the said insertion tab, When two of them are formed as a convex part set, at least one convex part set is arranged so as to intersect with the width direction orthogonal to the insertion direction in the surface of the opposed contact part, so that the insertion direction is different. The convex part arranged in the position is also different in the width direction, and the convex part on the front side in the insertion direction is different from the part where the convex part on the rear side in the insertion direction slides on the insertion tab. Will move. Therefore, an increase in insertion force can be prevented as compared with a case where sliding resistance is increased by further sliding the already slid portion.

With such a configuration, since the insertion force does not increase, the contact load can be designed to be as large as possible.For example, a female terminal that is excellent against fine sliding wear caused by vibration during traveling of an automobile is provided. Can be configured. Therefore, even if the number of terminals increases with the complexity of the circuit configuration or the like, both terminals can be reliably fitted and connected to ensure a stable connection state.

As an aspect of the present invention, the width direction position, which is the position of each convex part in the width direction, is defined as the contact width where the convex part and the insertion tab are in contact with each other. It can be set to be more than half.

The center in the width direction can be a center with respect to the outermost both sides in the width direction of the convex portion.
The width direction interval between the width direction centers can be the distance in the width direction between the width direction centers of the respective convex portions.

According to the present invention, since the locus due to the location where each convex portion slides is shifted in the width direction, even if the convex portion is arranged at a different position in the insertion direction, the portion where the other convex portion has already slid is slid again. By doing so, it is possible to prevent a problem that the insertion force increases.

Specifically, when the width direction position of each convex part is set so that the width direction interval is half or less of the contact width, the locus of the convex part on the front side in the insertion direction and the locus of the convex part on the rear side in the insertion direction are more than half. Overlap.

In this way, the insertion force is increased when the convex portion on the rear side in the insertion direction overlaps with the portion where the convex portion on the rear side in the insertion direction has already slid, and the convex portion on the front side in the insertion direction slides again. Further, when the width direction interval is less than half of the contact width and narrow, the insertion direction front projection is guided to the place where the insertion projection rear side projection has already slid. Will increase.

However, since the position in the width direction of the convex portion is set so that the width direction interval between the centers in the width direction is more than half of the contact width, the locus by each convex portion is shifted in the width direction, and the sliding resistance is increased. It is possible to prevent an increase in insertion force due to.

As an aspect of the present invention, the opposing contact portion is long in a direction intersecting the insertion direction, protrudes toward the elastic contact portion side, and has a predetermined length of recess at least in the intermediate portion. An overhang part is provided, and the convex part can be formed on both outer sides of the concave part on the overhang part.

According to the present invention, by forming the projecting portion, it is possible to form convex portions on both sides of the concave portion formed in the intermediate portion, and it is possible to form convex portions having high shape stability.

Specifically, since the convex portions formed on both sides of the concave portion formed in the intermediate portion are formed integrally with the overhang portion, the convex portions that are independent from each other at the opposing contact portion of the miniaturized female terminal Compared with the case of forming the protrusion, it is possible to reliably form a convex portion having a high strength, for example, having a height for reliably contacting the insertion tab. Therefore, reliable conductive performance can be ensured.

Further, as an aspect of the present invention, the opposing contact portion is constituted by an elastic opposing contact portion having elasticity in the direction of the opposing elastic contact portion, and the elastic contact portion and the elasticity are inserted into the inserted tab. It can be set as the structure which pinches | interposes and fits while facing an opposing contact part in the opposing direction.

The elastic facing contact portion may be a contact portion having the same structure as the elastic contact portion and symmetrically arranged with respect to the insertion tab to be inserted.
According to the present invention, since the elastic contact portion and the elastic facing contact portion are sandwiched and fitted to the inserted insertion tab while being biased in the opposite direction, in addition to the above effect, more reliable conductive performance Can be secured. Further, since the elastic contact portion and the elastic counter contact portion are sandwiched and fitted while being urged in the opposite direction, they can be urged and fitted with a desired urging force.

Further, as an aspect of the present invention, a front position convex portion disposed at a front position in the insertion direction by the insertion tab may be provided for half or less of the plurality of convex portions.

The front position convex portion may be a convex portion having the same shape as the convex portion or a convex portion having a different shape.
Moreover, the front position convex part arrange | positioned in the front position on the said insertion direction by the said insertion tab with respect to the above-mentioned convex part is the front position convex part arrange | positioned in the front side position where the width direction position corresponds with respect to a convex part. Alternatively, the width-direction interval between the width-direction centers of the convex portions is arranged at the front position convex portion arranged at the front position where the convex portion and the insertion tab are not more than half of the contact width or the front position. It can be a front position convex part.

According to the present invention, it is possible to improve the degree of freedom with respect to the arrangement of the convex portions while having an effect of suppressing an increase in insertion force of the male terminal into the fitting means of the insertion tab.
Specifically, for example, even when it is necessary to further increase the contact area due to an increase in the required energization amount, the insertion tab is used for the projections that are less than half of the plurality of projections provided. By arranging the front position convex portion at the front position in the insertion direction, the effect of suppressing an increase in insertion force by two or more convex portions arranged at a position intersecting with the insertion direction of the insertion tab to the fitting means. The minimum contact area can be increased by the front position convex portion having a high degree of freedom in arrangement.

Also, as an aspect of the present invention, a tip position that contacts the vicinity of the tip of the insertion tab to be inserted, and a tip position convex portion arranged in the insertion direction with respect to the convex portion can be provided.

The tip position convex portion may be a convex portion having the same shape as the convex portion or a convex portion having a different shape.
Further, with respect to the above-described convex portion, the tip position convex portion arranged at the tip position in the insertion direction by the insertion tab is a tip position convex portion arranged at a tip position whose width direction position matches the convex portion, Or the front-end position convex part arranged at the front-end position where the width-direction interval between the width-direction centers in the convex part is less than or equal to half of the contact width where the convex part and the insertion tab contact, or the front-end arranged at the front end position It can be a position convex part.

According to the present invention, it is possible to improve the degree of freedom with respect to the arrangement of the convex portions while having an effect of suppressing an increase in insertion force of the male terminal into the fitting means of the insertion tab.
Specifically, for example, even if it is necessary to further increase the contact area due to an increase in the required energization amount, the tip position convex portion in the insertion direction with respect to the convex portion at the tip position in the insertion direction by the insertion tab By arranging the insertion tab, freedom in arrangement can be obtained while ensuring the minimum effect of suppressing the increase in insertion force by the two or more convex portions arranged at positions intersecting with the insertion direction of the insertion tab into the fitting means. The contact area can be increased by the tip position convex portion having a high degree.

Further, according to the present invention, the exposed portion of the electric wire conductor in which the female terminal is exposed for a predetermined length from the tip of the covering body in the covered electric wire in which the outer periphery of the electric wire conductor is covered with an insulating covering body is crimped. It comprises a crimping part and the fitting means,
It is a connection structure in which the covered electric wire and the female terminal are connected by the crimping portion.
According to the present invention, the insertion tab in the male terminal can be easily inserted, and a reliable and stable electrical connection can be realized.

Furthermore, the present invention is a connector in which at least one female terminal in the above connection structure is disposed in a connector housing.
A connector in which at least one female terminal is arranged in a connector housing is one of a plurality of female terminals in which all of the plurality of female terminals to be attached to the connector are female terminals in the connection structure described above. This is a concept that includes making the portion a female terminal in the connection structure described above, or mounting only one female terminal in the connection structure described above on the connector.
According to the present invention, the crimp terminal and the wire conductor can be configured to be in a fitted state ensuring stable conductivity.

According to the present invention, it is possible to provide a female terminal that can reliably conduct electricity while suppressing an increase in insertion force of the male terminal into the fitting means of the insertion tab.

Explanatory drawing about a female terminal. Explanatory drawing about a female terminal. Explanatory drawing about the locus | trajectory of a bead. Explanatory drawing about the locus | trajectory in the width direction position of a bead. Explanatory drawing about a bead pattern. Explanatory drawing about an independent bead pattern. Explanatory drawing about another bead. The longitudinal cross-sectional view of the female terminal of a double elastic contact piece type. Explanatory drawing about a front position convex part. Explanatory drawing about a front-end | tip convex part. The explanation perspective view about a connector.

An embodiment of the present invention will be described below with reference to the drawings.
1 and 2 are explanatory views of the male crimp terminal 1. FIG. Here, FIG. 1A shows a cross-sectional perspective view of the female crimp terminal 1 divided at the center in the width direction Y, FIG. 1B shows a perspective view of the female crimp terminal 1 in the middle of assembly, FIG. 1C shows a perspective view of the female crimp terminal 1 in a state where the covered electric wire 200 is crimped to the wire barrel portion 4.

2A is a side view of the female crimp terminal 1, FIG. 2B is a cross-sectional view of the female crimp terminal 1 at the center in the width direction Y, and FIG. The top view of the female crimp terminal 1 of the state before an assembly shown to (b) is shown. Further, FIG. 2 (d) shows a front view of the female crimp terminal 1, and FIG. 2 (e) shows a cross-sectional view from the front side in the zz section shown in FIG. 2 (c).

FIG. 3 shows an explanatory diagram of the trajectory of the oblique bead 80, and FIG. 4 shows an explanatory diagram of the trajectory of the oblique bead 80 in the width direction position. FIG. 3A shows a schematic diagram of the trajectories of the direct beads 180 and the oblique beads 80, and FIG. 3B shows a comparison graph of the respective static friction forces.

4 (a) and 4 (b) show a schematic diagram of the trajectory of the oblique bead 80 in the width direction, FIG. 4 (c) shows a schematic diagram of the trajectory of the direct bead 180, and FIG. ) Shows a schematic diagram of the contact width a between the hemispherical convex portion 81 and the insertion tab 300.

5 shows a partial plan view and a front view of the bead pattern of the oblique bead 80, and FIG. 6 shows a partial plan view of the bead pattern of the independent hemispherical convex portion 91 (independent flat convex portion 93). The explanatory view by a front view is shown.

First, the female crimp terminal 1 will be described. The female crimp terminal 1 includes a box portion 2 that allows insertion of an insertion tab of a male crimp terminal (not shown) in the male connector 400b (see FIG. 11) from the rear to the front in the insertion direction X, and a box Wire barrel part 4 disposed in front of part 2 via first transition 3 having a predetermined length, and insulator disposed in front of wire barrel part 4 via second transition 5 having a predetermined length The construction barrel portion 6 is integrally formed. The insertion direction X is the direction in which the insertion tab 300 (FIG. 2) is inserted into the box portion 2, and is the direction that coincides with the longitudinal direction of the female crimp terminal 1.

The covered electric wire 200 to be crimped and connected to the female crimp terminal 1 is configured by covering a core wire 202 in which copper wires are bundled with an insulating coating 201 made of an insulating resin.
The female crimp terminal 1 is formed by subjecting a copper alloy strip such as brass having a thickness of approximately 0.2 mm, the surface of which is tin-plated (Sn plated) to a thickness of approximately 0.001 mm, to form and bending the copper alloy strip. This is an open barrel type terminal.

Note that the Sn plating applied to the surface is applied to improve the weldability of the solder and the slidability by inserting the insertion tab 300. Further, the female crimp terminal 1 is not limited to the open barrel type, and may be a closed barrel type.

Furthermore, the core wire 202 of the covered electric wire 200 and the female crimp terminal 1 may be electrically and physically connected by, for example, welding such as ultrasonic welding. Moreover, the female crimp terminal 1 may be a three-dimensional structure obtained by processing an aluminum alloy strip.

As shown in FIG. 1 (b), the wire barrel portion 4 before crimping extends obliquely outward and upward from both sides in the width direction Y of the barrel bottom portion 7 and includes a rectangular wire barrel piece 41 in a side view. It is formed in a U shape.

Further, the insulation barrel portion 6 before the crimping is also provided with an insulation barrel piece 61 extending obliquely outward and upward from both sides in the width direction Y of the barrel bottom portion 7, and is formed in a substantially U shape when viewed from the front.

The wire barrel portion 4 configured as described above is crimped by crimping the core wire 202 of the covered electric wire 200, and the insulation barrel portion 6 is crimped by crimping the insulating coating 201 of the covered electric wire 200 to cover the female crimp terminal 1 and the sheath. The electric wire 200 can be electrically and physically connected.

The box part 2 is composed of an inverted hollow square column body, and is dimpled that is bent toward the front in the insertion direction X and contacts the insertion tab 300 (see FIG. 2) of the male crimp terminal to be inserted. The elastic contact piece 21 which has 21a is provided.
The ceiling part 22 (22a, 22b) of the box part 2 which is a hollow quadrangular prism body is formed by bending an extended part of the side part 23 (23a, 23b) so as to overlap.

Specifically, the upper half portion that is an extension of the right side surface 23b on the right side when viewed from the front is bent at a substantially right angle in the direction of the left side surface 23a to form the inner ceiling portion 22b, and overlaps the upper side of the inner ceiling portion 22b. The upper half portion, which is an extension of the left side surface 23a, is bent at a substantially right angle to the right side surface 23b side to constitute the outer ceiling portion 22a, and the outer ceiling portion 22a and the inner ceiling portion 22b constitute the ceiling portion 22. .

Then, two oblique beads 80 parallel to the width direction Y are formed on the inner ceiling portion 22b.
The oblique beads 80 are long in the insertion direction X and are arranged in a direction intersecting the insertion direction X, and hemispherical convex portions 81 are formed at both ends of the insertion direction X.

Specifically, as shown in FIG. 1B, the oblique bead 80 has a semicircular cross-section bar shape formed so as to protrude toward the elastic contact piece 21 side in the bent inner ceiling portion 22b. An intermediate recess 82 is formed by denting the portion upward. Then, both end portions of the intermediate recess 82 are protruded downward in a hemispherical shape to form a hemispherical convex portion 81.
Further, the two oblique beads 80 are arranged in a direction and a position intersecting the insertion direction X so that the positions in the width direction of the respective hemispherical convex portions 81 do not overlap.

In addition, the said width direction position is a position of the width direction Y of the hemispherical convex part 81 in the inner side ceiling part 22b.
Moreover, the hemispherical convex part 81 is formed with a radius of approximately 0.1 mm or more, and the intermediate concave part 82 is formed by being recessed with a thickness of 0.01 mm or more and less than the thickness of the inner ceiling part 22b.

2D and 2E, the two oblique beads 80 arranged so that the positions in the width direction of the respective hemispherical convex portions 81 do not overlap each other are 5 degrees from the insertion direction X. It arrange | positions with the arrangement | positioning direction S which cross | intersects the view right side. The arrangement direction S will be described in detail below.

As shown in FIG. 4A, the insertion direction in the arrangement direction S connecting the center of the rear hemispherical convex portion 81a that is the rear of the insertion direction X and the center of the front hemispherical convex portion 81b that is the front of the insertion direction X. The crossing angle with respect to X is θ, and the center-to-center distance between the rear hemispherical convex portion 81a and the front hemispherical convex portion 81b is bead length b.

Further, as shown in FIG. 4D, the width in the width direction Y at the contact portion where the hemispherical convex portion 81 and the insertion tab 300 are in contact is defined as a contact width a.
Therefore, the distance c in the width direction of the front hemispherical convex portion 81b with respect to the rear hemispherical convex portion 81a is c = b × sinθ when expressed using the bead length b and the intersection angle θ.

Here, if the width direction interval c is equal to or larger than the contact width a, as shown in FIG. 4A, the sliding locus R1 of the rear hemispherical convex portion 81a with respect to the insertion tab 300 and the sliding of the front hemispherical convex portion 81b. The moving trajectory R2 does not overlap in the width direction Y, and a different trajectory interval T1 is formed therebetween.

On the other hand, when the width direction interval c is shorter than the contact width a and more than half of the contact width a, as shown in FIG. 4B, the sliding locus R1 of the rear hemispherical convex portion 81a and the front hemisphere The sliding locus R2 of the convex portion 81b overlaps in the width direction Y, and a track overlapping portion T2 having a width equal to or less than half of the contact width a is formed.

In the above description, the sliding locus R (R1, R2) formed by sliding the hemispherical convex portion 81 is a locus formed on the insertion tab 300 inserted from the front side of the box portion 2. is there. Then, the rear hemispherical convex portion 81a, which is the rear of the insertion direction X, slides in contact with the insertion tab 300 before the front hemispherical convex portion 81b, and the insertion tab 300 up to the position of the front hemispherical convex portion 81b is inserted. After that, the sliding to the insertion tab 300 by the front hemispherical convex portion 81b starts.

Further, the Sn plating applied to the surfaces of the insertion tab 300 and the hemispherical convex portion 81 is deformed or peeled off by sliding between the insertion tab 300 and the hemispherical convex portion 81, and the hemispherical convex portion 81 in the sliding locus R The slidability with the insertion tab 300 is lowered.

Further, the width direction interval c of the hemispherical convex portions 81 is not limited to the rear hemispherical convex portion 81a and the front hemispherical convex portion 81b on the same oblique bead 80, but also the rear hemispherical convex portion 81a of different oblique beads 80. The position in the width direction with respect to the front hemispherical convex portion 81b needs to be in the same range.

Thus, the insertion force of the insertion tab 300 to the box part 2 is reduced by shifting the position in the width direction of the rear hemispherical convex part 81a and the front hemispherical convex part 81b within the above range. can do. Specifically, as shown in FIG. 3A, which is a schematic diagram, in the case of an orthogonal bead 180 parallel to the insertion direction X, the position after movement from the initial position A with respect to the insertion tab 300 by insertion of the insertion tab 300. The front hemispherical convex portion 181b of the direct bead 180 that relatively moves to B moves on the sliding locus R ′ where the rear hemispherical convex portion 181a has already slid.

Thus, since the front hemispherical convex portion 181b moves on the sliding locus R ′ of the rear hemispherical convex portion 181a, the slidability between the hemispherical convex portion 181 and the insertion tab 300 is further reduced. The insertion force of the insertion tab 300 to the box part 2 will increase.

On the other hand, in the case of the oblique bead 80 arranged in the arrangement direction S that intersects the insertion direction X, the oblique bead 80 that moves relative to the insertion tab 300 from the initial position A to the post-movement position B is a front hemisphere. Since the convex portion 81b does not move on the sliding locus R1 of the rear hemispherical convex portion 81a, the slidability between the hemispherical convex portion 81 and the insertion tab 300 does not deteriorate, and the insertion tab 300 into the box portion 2 does not fall. Insertion force does not change.

For example, in this example, as shown in FIG. 3 (b) measured using a simulated sample of one bead, an orthogonal bead 180 (indicated at 0 degree in the graph) having an insertion force of 3.6 N was used. Thus, the oblique bead 80 (displayed at 10 degrees in the graph) becomes 2.9 N, and the insertion force, that is, the frictional force can be reduced by about 20%.

Here, the angle θ is set to 10 degrees. However, even if the angle θ is set to 5 degrees, if the bead length is 3 mm and the contact diameter is 0.14 mm as described above, it becomes a different track. It is considered that there is no substantial difference between the angle θ of 5 degrees and 10 degrees.

In addition, when a normal semicircular cross-section rod-shaped bead that does not include the hemispherical convex portion 81 and the intermediate concave portion 82 in the oblique bead 80 is simply disposed obliquely with respect to the insertion direction X, it is orthogonal to the insertion direction X. Since the sliding width in the width direction Y is widened, it is clear that the insertion force is increased as compared with the oblique bead 80 provided with the hemispherical convex portion 81 and the intermediate concave portion 82.

As described above, the oblique bead 80 is formed in a semicircular cross-section bar shape, the intermediate concave portion 82 is formed in the intermediate portion, and the hemispherical convex portions 81 are provided on both sides thereof. As shown in FIG. 4, the projection may be protruded downward in a substantially flat plate shape, an intermediate recess 82 may be formed at an intermediate portion thereof, and flat protrusions 83 may be formed on both sides thereof.

In the above description, two 80s arranged in the arrangement direction S intersecting in the same direction with respect to the insertion direction X are arranged in parallel. (FIG. 5 (b)), or an inverted C shape (FIG. 5 (c)). Furthermore, as long as the necessary conductive performance between the insertion tab 300 and the female crimp terminal 1 is satisfied, the insertion tab 300 and the female crimp terminal 1 may be configured with one oblique bead 80 (FIG. 5D). The flat convex portion 83 may also be formed by forming a substantially square shape as shown in FIG.

Further, hemispherical convex portions 81 and flat convex portions 83 are formed on both sides of the intermediate concave portion 82 in the semicircular cross-section rod-shaped or substantially flat plate-shaped oblique bead 80. However, as shown in FIG. The convex part 91 and the independent flat convex part 93 may be formed.

For example, as shown in FIG. 6A, an independent hemispherical convex portion 91 (independent flat convex portion 93) is formed at the same position as the hemispherical convex portion 81 formed on the above-described oblique bead 80 (see FIG. 2). ing. Of course, similarly, the independent hemispherical convex portion 91 may be formed at the same position as the hemispherical convex portion 81 of the oblique bead 80 arranged as shown in FIGS. 5 (b) to 5 (d).
The independent hemispherical convex portion 91 may be formed with a radius of about 0.1 mm or more, like the hemispherical convex portion 81.

Further, as shown in FIG. 6B, an independent hemispherical convex portion 91 (independent flat convex portion 93) may be arranged in an inverted V shape with respect to the insertion direction X, and further in FIG. As shown, an independent hemispherical convex portion 91 (independent flat convex portion 93) may be arranged in a V shape with respect to the insertion direction X.
Further, as shown in FIG. 6D, an independent hemispherical convex portion 91 (independent flat convex portion 93) may be arranged in the shape of a letter toward the width direction Y.

Thus, various arrangement patterns of the oblique beads 80 and the independent hemispherical convex portions 91 (independent flat convex portions 93) can be considered, but at least the hemispherical convex portions 81 (flat convex portions) adjacent in the width direction Y are considered. 83) or the width direction interval c of the independent hemispherical convex portion 91 (independent flat convex portion 93) is inserted with the hemispherical convex portion 81 (flat convex portion 83) or the independent hemispherical convex portion 91 (independent flat convex portion 93). By setting it to more than half of the contact width a in contact with the tab 300, an effect of reducing the insertion force can be obtained as compared with the arrangement of the hemispherical convex portions 181 along the insertion direction X like the straight beads 180. .

Next, the results of an effect confirmation test regarding the effect of reducing the insertion force of the insertion tab 300 by the oblique bead 80 or the independent hemispherical convex portion 91 (independent flat convex portion 93) will be described.

In this effect confirmation test, with respect to the arrangement pattern of the oblique beads 80 (bead arrangement type), a pattern in which two oblique beads 80 are arranged in parallel as shown in FIGS. A pattern (FIG. 5 (b)) arranged in a C shape with respect to X is an arrangement type B, and a pattern (FIG. 5 (c)) arranged in an inverted C shape with respect to the insertion direction X is an arrangement type C. A pattern (FIG. 5D) in which one oblique bead 80 is arranged is an arrangement type D.

Moreover, about the arrangement pattern (bead arrangement type) of the independent hemispherical convex part 91 (independent flat convex part 93), the pattern (FIG.6 (b)) arrange | positioned in reverse V shape with respect to the insertion direction X is arrange | positioned. A pattern (FIG. 6C) arranged in a V shape with respect to the insertion direction X is set as a type E.
Furthermore, a pattern in which two orthogonal beads 180 are arranged is an arrangement type X, and a pattern in which one orthogonal bead 180 is arranged in the center in the width direction Y is an arrangement type Y.

First, the arrangement patterns A, B, and C with respect to the two oblique beads 80 and the orthogonal bead 180 are compared with each other with respect to the hemispherical convex portion 81 and the flat convex portion 83, and further, θ is used as a parameter for the width direction position. A test was conducted. The results are shown in Table 1.

From Table 1, by arranging the gap c in the width direction to be half or more of the contact width a, both the hemispherical convex portion 81 and the flat convex portion 83 (Invention Examples 1 to 14), the direct bead 180 ( Compared with Comparative Examples 1 and 3), the effect of reducing the insertion force was confirmed. On the other hand, when the width direction interval c is narrower than half of the contact width a (Comparative Examples 2 and 4), it was confirmed that the insertion force was not reduced compared to the direct bead 180.

Next, one oblique bead 80 (arrangement pattern D) and one orthogonal bead 180 (arrangement pattern Y) are compared for the hemispherical convex portion 81 and the flat convex portion 83, respectively, and further, the position in the width direction is compared. The test was conducted using θ as a parameter. The results are shown in Table 2.

From Table 2, by arranging the width direction interval c to be half or more of the contact width a, both the hemispherical convex portion 81 and the flat convex portion 83 (Invention Examples 15 to 18), the direct bead 180 ( The effect of reducing the insertion force was confirmed as compared with Comparative Examples 5 and 7). Conversely, when the width direction interval c is narrower than half of the contact width a (Comparative Examples 6 and 8), it was confirmed that the insertion force was reduced only slightly compared to the direct bead 180.

Further, in the comparison between one oblique bead 80 (arrangement pattern D) and one orthogonal bead 180 (arrangement pattern Y), the cases where the contact width a is increased are compared, and the results are shown in Table 3. .

From Table 3, the hemispherical projection 81 (Invention Examples 21 and 22) rather than the flat projection 83 (Invention Examples 19 and 20) is disposed by arranging the width direction interval c to be half or more of the contact width a. It was confirmed that the reduction effect on the direct beads 180 (Comparative Examples 9 and 11) was high. Moreover, when the width direction space | interval c was narrower than the half of the contact width a (comparative examples 10 and 12), it confirmed that insertion force was hardly reduced compared with the orthogonal bead 180. FIG.

Thus, the insertion force of the insertion tab 300 is reduced compared to the direct bead 180 by setting the hemispherical convex portion 81 and the flat convex portion 83 so that the width direction interval c is half or more of the contact width a. It was confirmed.

In the female crimp terminal 1 having the box portion 2 that allows insertion from the fitting entrance portion of the insertion tab 300 in such a male terminal, the box portion 2 is elastic with respect to the insertion tab 300 inserted therein. An elastic contact piece 21 that contacts the elastic contact piece 21 and an inner ceiling portion 22b that is inserted and inserted into the insertion tab 300 between the elastic contact piece 21 and is fitted to the inner ceiling portion 22b. Two or more hemispherical convex portions 81 projecting toward the elastic contact piece 21 side are formed, and the front hemispherical convex portion 81b is inserted into the box portion 2 of the insertion tab 300 with respect to the rear hemispherical convex portion 81a. By arranging the bead 80 having the two hemispherical convex portions 81 so as to intersect the width direction Y in the plane of the inner ceiling portion 22b while being disposed at a position intersecting the direction X. , While suppressing an increase in the insertion force to the box portion 2 of the insertion tabs 300 of the male terminal can be reliably electrically conductive.

Specifically, two or more hemispherical convex portions 81 are formed on the inner ceiling portion 22b, and the insertion tab 300 is sandwiched and fitted between the inner ceiling portion 22b and the elastic contact piece 21, thus ensuring a contact area and ensuring Can be realized.

Further, the front hemispherical convex portion 81b is arranged at a position intersecting the insertion direction X of the insertion tab 300 into the box portion 2 with respect to the rear hemispherical convex portion 81a, and the two hemispherical convex portions 81 are arranged. Since the formed bead 80 is arranged so as to intersect the width direction Y orthogonal to the insertion direction X in the surface of the inner ceiling portion 22b, the hemispherical convex portions 81 arranged at different positions in the insertion direction X have a width. The direction position is also different.

Therefore, the front hemispherical convex portion 81b slides on a smooth unslidable portion on the insertion tab 300, which is different from the portion where the rear hemispherical convex portion 81a slides on the insertion tab 300. Therefore, an increase in insertion force can be prevented as compared with a case where sliding resistance is increased by further sliding the already slid portion.

In this way, the contact load can be designed to be as large as possible without increasing the insertion force. For example, the female crimp terminal 1 is excellent against fine sliding wear caused by vibration during traveling of an automobile. Can be configured.

As shown in FIG. 1C, such a female crimp terminal 1 is configured by crimping and connecting a covered electric wire 200 to the wire barrel portion 4 to form a crimp connection structure 500a. By mounting the female crimp terminal 1 on the female connector housing 401a, it is possible to configure a female connector 400a having reliable conductivity while suppressing an increase in insertion force.

The insulated wire 200 is connected to a male crimp terminal (not shown) to form the crimp connection structure 500b, and the male crimp terminal of the crimp connection structure 500b is attached to the male connector housing 401b to connect the male connector. 400b is configured.

Then, as shown in FIG. 11, by fitting the female connector 400a and the male connector 400b, the covered electric wire 200 connected to the female crimp terminal 1 and the covered electric wire 200a connected to the male crimp terminal. The connector 400 can be configured so as to be conductive.

Since the female crimp terminal 1 to be attached to the female connector housing 401a is configured as described above, even if the connector 400 (400a, 400b) has an increased number of terminals due to a complicated circuit configuration, etc. While suppressing an increase in force, it is possible to securely connect and secure a stable connection state.

Further, a plurality of female crimp terminals are mounted on the female connector housing 401a, but not all the female crimp terminals are configured as the female crimp terminals 1 of the present invention, and at least one of them is configured by the female crimp terminals 1. The increase in insertion force can be suppressed.

Further, the width direction position, which is the position of each hemispherical convex portion 81 in the width direction Y, is set such that the width direction interval c between the width direction centers of each hemispherical convex portion 81 is the hemispherical convex portion 81 and the insertion tab 300. By setting the contact width a to be half or more of the contact width a, the sliding trajectory R due to the location where each hemispherical convex portion 81 has slid is shifted, so that the rear hemispherical convex portion 81a has already slid. It is possible to prevent a problem that the insertion force is increased due to the forward hemispherical convex portion 81b sliding again on the locus R1.

Specifically, when the position in the width direction of each hemispherical convex portion 81 is set so that the widthwise interval c is less than or equal to half of the contact width a, the sliding locus R2 of the front hemispherical convex portion 81b and the rear hemispherical convexity The sliding trajectory R1 of the portion 81a overlaps more than half. In this way, the insertion force is increased when the front hemispherical convex portion 81b slides again so that the rear hemispherical convex portion 81a already overlaps the sliding locus R1 that has already slid.

Furthermore, when the width direction interval c is less than half of the contact width a and is narrow, the front hemispherical convex portion 81b is guided to the sliding locus R1 in which the rear hemispherical convex portion 81a has already slid, so that the sliding resistance is reduced. Increases the insertion force. However, by setting the position in the width direction of the hemispherical convex portion 81 so that the width direction interval c between the centers in the width direction becomes more than half of the contact width a, the sliding locus R by each hemispherical convex portion 81 is It is possible to prevent an increase in insertion force due to an increase in sliding resistance by shifting in the width direction Y.

In addition, an oblique bead 80 that is long in the direction intersecting the insertion direction X and protrudes toward the elastic contact piece 21 side and has an intermediate recess 82 corresponding to a predetermined length at least in the intermediate portion is formed on the inner ceiling portion 22b. By forming and forming the hemispherical convex portions 81 on both outer sides of the intermediate concave portion 82 on the oblique bead 80, the hemispherical convex portions 81 having high shape stability can be formed.

Specifically, since the hemispherical convex portions 81 formed on both sides of the intermediate concave portion 82 in the intermediate portion are integrally formed with the oblique bead 80, the hemispherical convex portions 81 are respectively formed on the inner ceiling portion 22 b of the downsized female crimp terminal 1. Compared with the case where the independent hemispherical convex portion 81 is formed, the hemispherical convex portion 81 having a high strength, for example, having a height for reliably contacting the insertion tab 300 can be reliably formed. Therefore, reliable conductive performance can be ensured.

Next, the arrangement type E in which three independent hemispherical convex portions 91 are arranged in an inverted V shape, the arrangement type F in which the V shape is arranged, and the arrangement type Y in which one orthogonal bead 180 is arranged in the center are compared. Furthermore, a test was performed using the length between points of the independent hemispherical convex portion 91 as a parameter. The results are shown in Table 4.

From Table 4, the independent hemispherical convex portions 91 (Invention Examples 23 and 24) are arranged in the inner ceiling portion 22b so that the width direction interval c is half or more of the contact width a. The effect of reducing the insertion force was confirmed with respect to (Comparative Examples 9 and 11).

In the above description, the hemispherical convex portion 81 is formed in a hemispherical shape with a radius of 0.1 mm or more on both sides of the intermediate concave portion 82 in the oblique bead 80, but is an explanatory view of another oblique bead 80 ′. As shown in FIG. 7A, the hemispherical convex portion 81 (flat convex portion 83) and the intermediate concave portion 82 may be continuously formed with a smooth curve in the insertion direction X. Also in this case, the continuous portion with the intermediate concave portion 82 in the rear of the insertion direction X of the front hemispherical convex portion 81b and the continuous portion with the inner ceiling portion 22b in the rear of the insertion direction X of the rear hemispherical convex portion 81a are approximately 0. It may be formed with a radius of 1 mm or more.

In this manner, by forming the oblique bead 80 ′, in addition to the effect of the oblique bead 80 described above, the insertion tab 300 inserted into the box part 2 is formed into a hemispherical convex portion 81 (flat convex portion) in the oblique bead 80 ′. 83), it is possible to prevent the occurrence of the problem that the insertion force increases due to being caught in the rear portion in the insertion direction X.

Alternatively, the oblique beads 80 ′ may be formed asymmetrically in the insertion direction X. Specifically, a continuous portion of the front hemispherical convex portion 81b with the intermediate concave portion 82 in the rear of the insertion direction X and a continuous portion of the rear hemispherical convex portion 81a with the inner ceiling portion 22b in the rear of the insertion direction X have radius 0. Formed with a smooth curve of 1 mm or more, a continuous portion with the inner ceiling portion 22b in front of the insertion direction X of the front hemispherical convex portion 81b, and an intermediate concave portion 82 in front of the insertion direction X of the rear hemispherical convex portion 81a The continuous portion may be formed by a curve having a radius of 0.1 mm or less. The effect similar to the said effect can be acquired also by this.

In the above description, the slanted bead 80 having the hemispherical convex portion 81 and the flat convex portion 83 and the independent hemispherical convex portion 91 (independent flat convex portion 93) are the inner sides constituting the ceiling portion 22 of the box portion 2. Although formed in the ceiling portion 22b, the inner side ceiling portion 22b is provided with a ceiling-side elastic contact piece 24 having spring characteristics similarly to the elastic contact piece 21, and the oblique beads 80 having the hemispherical convex portion 81 and the flat convex portion 83, Alternatively, the female crimp terminal 1 may be a double elastic contact piece type in which the independent hemispherical convex portion 91 (independent flat convex portion 93) is formed on the ceiling-side elastic contact piece 24 (see FIG. 8).

Thereby, the female crimp terminal 1 of the double elastic contact piece type has the elastic contact piece 21 and the ceiling-side elastic contact piece 24, and the elastic contact piece 21 and the insertion tab 300 inserted into the box portion 2. The urging forces of the ceiling-side elastic contact pieces 24 are caused to act in opposite directions, and the insertion tab 300 can be sandwiched to be electrically and physically connected.

And the slanted bead 80 having the hemispherical convex portion 81 and the flat convex portion 83 formed on the ceiling-side elastic contact piece 24, or the independent hemispherical convex portion 91 (independent flat convex portion 93), the width direction interval c is the contact width. By arranging so as to be at least half of a, the insertion force can be reduced compared to the case where the direct bead 180 is formed on the ceiling-side elastic contact piece 24. Table 5 shows the results of the effect confirmation test in the case where the oblique bead 80 and the independent hemispherical convex portion 91 (independent flat convex portion 93) are formed on the ceiling-side elastic contact piece 24 below.

In this effect confirmation test, in the ceiling-side elastic contact piece 24, the oblique beads 80 are arranged according to the arrangement type D described above (Invention Example 25), and the independent hemispherical convex portion 91 (independent flat convex portion 93) is disposed as described above. The arrangement types E and F were used (Invention Examples 26 and 27), and the direct beads 180 were arranged using the above-described arrangement type Y (Comparative Examples 13 and 14).

From Table 5, by arranging so that the width direction interval c of the hemispherical convex part 81 or the independent hemispherical convex part 91 (independent flat convex part 93) in the oblique bead 80 becomes half or more of the contact width a, The oblique bead 80 and the independent hemispherical protrusion 91 (Invention Examples 25 to 27) were confirmed to have an effect of reducing the insertion force with respect to the direct bead 180 (Comparative Examples 13 and 14) formed on the ceiling-side elastic contact piece 24. .

In this way, even when the oblique bead 80 or the independent hemispherical convex portion 91 is formed on the ceiling-side elastic contact piece 24, the ceiling-side elastic contact can be obtained by setting the width direction interval c to more than half of the contact width a. It was confirmed that the insertion force of the insertion tab 300 was reduced as compared with the direct bead 180 formed on the piece 24.

As described above, the double elastic contact piece type female crimp terminal 1 has a ceiling-side elastic contact piece 24 having elasticity in the direction of the opposing elastic contact piece 21 in addition to the effect of suppressing an increase in the insertion force of the insertion tab 300. The elastic contact piece 21 and the ceiling-side elastic contact piece 24 are sandwiched and fitted to the inserted insertion tab 300 while urging each other in the opposite direction.

Therefore, the elastic contact piece 21 and the ceiling-side elastic contact piece 24 are sandwiched and fitted to the inserted insertion tab 300 while urging each other in the opposite direction, thereby ensuring more reliable conductive performance. . Further, since the elastic contact piece 21 and the ceiling-side elastic contact piece 24 are sandwiched and fitted while being urged in the opposite direction, they can be urged and fitted with a desired urging force.

In addition to the above-described configuration, the inner ceiling portion 22b may be provided with an additional convex portion arranged in the insertion direction X direction with respect to the convex portions (81, 83, 91, 93). The contact area between the insertion tab 300 and the female crimp terminal 1 can be enlarged while ensuring the minimum. Specifically, the front position convex portion 101 and the tip position convex portion 102 that are additional convex portions will be described with reference to FIGS. 9 and 10 which are partial plan views and front views.
As the number of objects to be connected increases, stable electrical connection between the insertion tab 300 of the male crimp terminal attached to the inserted male connector 400b and the female crimp terminal 1 is desired, and an increase in the contact area is required. It has become. However, the miniaturization of the terminals themselves has progressed, and the arrangement of the convex portions (81, 83, 91, 93) has become difficult.

Therefore, the effect of suppressing the increase in the insertion force of the insertion tab 300 by disposing the convex portions (81, 83, 91, 93) by shifting the position in the width direction between the front and rear in the insertion direction X as described above is minimized. The front position convex portion 101 may be arranged on the insertion direction X of the convex portions (81, 83, 91, 93) while ensuring.

9 and 10, the front position convex portion 101 and the tip position convex portion 102 are shown as squares, but this only shows the positions of the front position convex portion 101 and the tip position convex portion 102. The independent hemispherical convex portion 91 and the independent flat convex portion 93 may be formed in the same shape, or may be formed in different shapes. However, the front position convex portion 101 can be arranged with respect to the convex portions (81, 83, 91, 93) of less than half of the plurality of convex portions (81, 83, 91, 93).

For example, in FIG. 9A in which four independent hemispherical convex portions 91 (93) are arranged, two front position convex portions 101 are inserted into the independent hemispherical convex portions 91 (93) behind the insertion direction X. It is arranged in front of the insertion direction X on the direction X. Further, in FIGS. 9B, 9C, and 9D in which three independent hemispherical convex portions 91 (93) are arranged, one or less half of the front position convex portions 101 are independent hemispherical in the rear of the insertion direction X. It arrange | positions ahead of the insertion direction X on the insertion direction X with respect to the convex part 91 (93).

Thereby, the contact area increase effect by the front position convex portion 101 is obtained while ensuring the increase suppression effect of the insertion force of the insertion tab 300 by the arrangement shifted in the insertion direction X of the independent hemispherical convex portion 91 (93). be able to.

Further, instead of the front position convex portion 101, the tip position convex portion 102 may be arranged at a position near the tip of the inserted insertion tab 300.
Note that the position near the tip of the insertion tab 300 where the tip position convex portion 102 is arranged is a position related to the tip of the insertion tab 300 and may be a position from the tip to about 1/5 of the length of the insertion tab 300. That's fine.

In this case, the distal end position convex portion 102 and the insertion tab 300 have little influence on the insertion force in the insertion direction X because the insertion tab 300 and the distal end position convex portion 102 come into contact immediately before the insertion of the insertion tab 300 is completed. In addition, it is possible to obtain the effect of increasing the contact area by the tip position convex portion 102 while ensuring the minimum effect of suppressing the increase of the insertion force of the insertion tab 300 due to the arrangement of the independent hemispherical convex portions 91 (93) shifted in the insertion direction X. it can. Therefore, as shown in FIGS. 10B and 10D, the insertion tab 300 is provided even if two tip position convex portions 102 that are more than half of the three convex portions (81, 83, 91, 93) are arranged. The effect of suppressing the increase in the insertion force can be minimized. The front position convex portion 101 and the tip position convex portion 102 may be provided side by side.

In the correspondence between the configuration of the present invention and the above-described embodiment, the fitting means of the present invention corresponds to the box portion 2,
Similarly,
The female terminal corresponds to the female crimp terminal 1,
The elastic contact portion corresponds to the elastic contact piece 21,
The opposing contact portion corresponds to the inner ceiling portion 22b,
The convex parts correspond to the hemispherical convex part 81, the rear hemispherical convex part 81a, the front hemispherical convex part 81b, the flat convex part 83, the independent hemispherical convex part 91 and the independent flat convex part 93,
The convex group corresponds to the diagonal bead 80,
The width direction interval corresponds to c = b × sin θ,
The recess corresponds to the intermediate recess 82,
The overhang corresponds to the diagonal bead 80,
The elastic facing contact portion corresponds to the ceiling-side elastic contact piece 24,
The crimping part corresponds to the wire barrel part 4,
The wire conductor corresponds to the core wire 202,
The covering corresponds to the insulating coating 201,
The covered wire corresponds to the covered wire 200,
The connection structure corresponds to the crimp connection structure 500a,
The connector housing corresponds to the female connector housing 401a,
The connector corresponds to the female connector 400a,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

DESCRIPTION OF SYMBOLS 1 ... Female type | mold crimp terminal 2 ... Box part 4 ... Wire barrel part 21 ... Elastic contact piece 22b ... Inner ceiling part 24 ... Ceiling side elastic contact piece 80 ... Diagonal bead 81 ... Hemispherical convex part 81a ... Back hemispherical convex part 81b ... front hemispherical convex part 82 ... intermediate concave part 83 ... flat convex part 91 ... independent hemispherical convex part 93 ... independent flat convex part 100 ... additional convex part 101 ... front position convex part 102 ... tip position convex part 300 ... insertion tab 201 ... insulation coating 200 ... covered electric wire 202 ... core wire 400a ... female connector 401a ... female connector housing 500a ... crimp connection structure a ... contact width c ... width direction interval X ... insertion direction Y ... width direction

Claims

A female terminal provided with fitting means for allowing insertion of an insertion tab in a male terminal,
An elastic contact portion that elastically contacts the inserted insertion tab and the elastic contact portion, and the inserted insertion tab is sandwiched between the elastic contact portion and fitted into the fitting means. An opposing contact portion to be mated,
Forming two or more convex portions projecting toward the elastic contact portion on the opposing contact portion;
While arranging another convex part with respect to one convex part among two or more convex parts in the position which intersects with the insertion direction to the fitting means of the insertion tab,
When two of the convex portions are formed as a convex portion set, at least one convex portion set is disposed so as to intersect the width direction orthogonal to the insertion direction within the surface of the opposed contact portion. Type terminal.
The width direction position, which is the position of each convex portion in the width direction,
2. The female terminal according to claim 1, wherein a width direction interval between centers in the width direction of each convex portion is set to be not less than a half of a contact width where the convex portion and the insertion tab are in contact with each other.
In the opposite contact portion,
It is long in a direction intersecting the insertion direction, and protrudes toward the elastic contact portion side, and has a projecting portion having a concave portion for a predetermined length at least in the middle portion,
The female terminal according to claim 1, wherein the convex portion is configured on both outer sides of the concave portion on the protruding portion.
The opposing contact portion,
Consists of elastic opposing contact portions having elasticity in the direction of the elastic contact portions facing each other,
4. The structure according to claim 1, wherein the elastic contact portion and the elastic counter contact portion are sandwiched and fitted to the inserted tab while being urged in the opposite direction. 5. Female terminal.
The front position convex part arrange | positioned in the front side position on the said insertion direction by the said insertion tab with respect to the convex part of the half or less among the said convex parts provided with two or more. Female terminal.
The female mold according to any one of claims 1 to 5, further comprising a distal end position that contacts a vicinity of a distal end of the insertion tab to be inserted, and a distal end position convex portion that is disposed in the insertion direction with respect to the convex portion. Terminal.
The female terminal according to any one of claims 1 to 6,
A crimping part that crimps an exposed portion of the wire conductor that is exposed for a predetermined length from the tip of the covering body in the covered electric wire in which the outer periphery of the wire conductor is covered with an insulating covering body, and the fitting means.
A connection structure in which the covered electric wire and the female terminal are connected by the crimping portion.
A connector in which at least one female terminal in the connection structure according to claim 7 is arranged in a connector housing.