JP2014170659A - Female terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce insertion resistance when starting insertion while securing connection stability between a female terminal and an elastic piece.SOLUTION: A female terminal 10 having a square cylindrical connection tube part 11 in which a male terminal 50 having a flat plate-like tab part 51 is inserted from the front includes a first elastic piece 15 provided in the connection tube part 11 and elastically making contact with the tip part of the tab part 51 by being pressed in a vertical direction crossing the insertion direction of the tab part 51, and a second elastic piece 19 having a second contact part 22 disposed on further front side than a position where the tab part 51 presses the first elastic piece 15 in the connection tube part 11 and pressed against the lower surface 51A of the tab part 51 from the lower part after the tab part 51 presses the first elastic piece 15.

Description

  The present invention relates to a female terminal.

  Conventionally, as a female terminal electrically connected with a male terminal, the thing of the following patent document 1 is known. The female terminal includes a connecting tube portion (referred to as a square tube portion in Patent Document 1) into which the male terminal is inserted, and an elastic piece (elastic in Patent Document 1) that is provided in the connecting tube portion and can elastically contact the male terminal. (Referred to as a contact piece). When the male terminal is inserted into the connecting tube portion, the elastic piece elastically contacts the male terminal, and the male terminal and the female terminal are electrically connected.

JP 2006-216314 A

By the way, in order to improve the connection stability between the male terminal and the elastic piece, it is generally considered to increase the contact load of the elastic piece to the male terminal.
However, when the contact load is increased, the insertion resistance for inserting the male terminal into the connection tube portion is increased, and the workability of connecting both terminals is deteriorated.

  The present invention has been completed based on the above circumstances, and an object thereof is to reduce the insertion resistance of the male terminal while ensuring the connection stability between the male terminal and the elastic piece.

  As a means for achieving the above object, the present invention provides a female terminal having a connecting tube portion into which a plate-shaped male terminal is inserted from the front, and is provided in the connecting tube portion. By being pressed in a direction crossing the terminal insertion direction, a first elastic piece that elastically contacts the same male terminal, and a position where the male terminal presses the first elastic piece in the connection tube portion. A second elastic piece arranged forward and pressed against the plate surface of the male terminal in a direction crossing the insertion direction of the male terminal after the male terminal presses the first elastic piece. It has a characteristic where it exists.

According to the female terminal having such a configuration, after the first elastic piece is pressed against the male terminal, the second elastic piece is pressed against the plate surface of the male terminal. That is, the position where the second elastic piece and the male terminal are in contact with each other is arranged rearward with respect to the insertion direction of the male terminal with respect to the position where the male terminal presses the first elastic piece. The insertion resistance of the male terminal can be reduced as compared with a configuration in which one elastic piece is pressed and then the tip of the male terminal further presses the second elastic piece.
Moreover, when the front-end | tip part of a male terminal presses an elastic piece in multiple times, every time the front-end | tip part of a male terminal presses an elastic piece, insertion resistance becomes large and there exists a dislike that an insertion feeling deteriorates. However, according to the above configuration, since the second elastic piece is pressed against the plate surface of the male terminal, compared to the case where the tip of the male terminal presses the elastic piece multiple times, The insertion feel ring of the male terminal can be made smooth.

The following configuration is preferable as an embodiment of the present invention.
The second elastic piece is provided continuously to the first elastic piece. When the first elastic piece is pressed and elastically displaced, the second elastic piece is interlocked with the first elastic piece. It is good also as a structure which is elastically displaced and pressed on the said male terminal.
With such a configuration, for example, the first elastic piece and the second elastic piece are individually provided, and the first elastic piece presses the second elastic piece, thereby interlocking with the first elastic piece and the second elastic piece. Compared with a complicated structure in which the piece is pressed against the male terminal, the structure of the connecting tube portion can be simplified.

The first elastic piece is configured to extend rearward from the front end portion of the connection cylinder portion, and the second elastic piece is folded forward from the rear end portion of the first elastic piece, It is good also as a structure arranged along with the 1st elastic piece and the width direction.
According to such a configuration, for example, when the second elastic piece further extending forward is provided at the front end of the first elastic piece extending forward from the rear end portion of the connecting cylinder portion. In comparison, the length dimension of the connecting tube portion in the front-rear direction can be shortened.

Further, when the first elastic piece and the second elastic piece are formed side by side in the width direction, generally, a slit is formed by punching a metal plate or the like, and the first elastic piece and the second elastic piece are arranged in the width direction. A method of forming them side by side is conceivable. In this case, it is desirable to make the width dimension of the slit larger than the plate thickness dimension of the metal plate material in order to provide durability of the mold for forming the slit. However, if the slit is set to be larger than the plate thickness dimension, the width dimension of the connecting cylinder portion becomes large, and the female terminal becomes large in the width direction.
However, according to the configuration as described above, the second elastic piece is folded back with respect to the first elastic piece, and the first elastic piece and the second elastic piece are arranged side by side in the width direction. The gap between the two elastic pieces can be set smaller than the plate thickness dimension, and the connecting tube portion can be reduced in the width direction.

The first elastic piece may be provided in a smaller number than the second elastic piece.
According to such a configuration, for example, when the total number of the first elastic pieces and the second elastic pieces is a fixed number, the first elastic pieces are provided in a larger number than the second elastic pieces. Compared to the above, the insertion resistance at the initial insertion of the male terminal can be further reduced.

The second elastic piece may be arranged in the center portion in the width direction of the connecting cylinder portion, and the first elastic piece may be arranged in regions on both sides in the width direction of the second elastic piece. .
According to such a configuration, the first elastic piece comes into contact with the male terminal on both sides in the width direction of the connecting tube portion at the initial insertion of the male terminal, and the second elastic piece is male in the center portion in the width direction of the connecting tube portion from the middle of the insertion. Pressed against the terminal. That is, it is possible to suppress the connection tube portion from rotating in the width direction with the center portion in the width direction as a fulcrum at the initial insertion of the male terminal. Thereby, it can prevent that a connection cylinder part and a male terminal are damaged because a male terminal is inserted in a connection cylinder part with a wrong posture.

The first elastic piece may be arranged in the center portion in the width direction of the connecting tube portion, and the second elastic piece may be arranged in regions on both sides in the width direction of the first elastic piece. .
For example, when the second elastic piece is biased and provided on one side in the width direction in the connecting tube portion, there is a possibility that the bias occurs when the force pressed by the first elastic piece is transmitted to the second elastic piece. . However, according to the above configuration, since the second elastic pieces are arranged in the regions on both sides in the width direction of the first elastic piece, the bias of the force transmitted from the first elastic piece to each second elastic piece is reduced. can do. Thereby, compared with the case where the 2nd elastic piece is biased and provided in one side of the width direction, the bias of the contact pressure of the 2nd elastic piece to a male terminal can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the insertion resistance of a male terminal can be reduced, ensuring the connection stability of a male terminal and an elastic piece.

The front view of the female terminal concerning Embodiment 1 Plan view 1 is a perspective sectional view taken along line AA in FIG. The top view which shows the expansion | deployment state of the female terminal which concerns on Embodiment 1. Sectional drawing which shows the state before inserting a male terminal in a connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the BB line of FIG. Sectional drawing which shows the state before inserting a male terminal in a connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the CC line of FIG. Sectional drawing which shows the state which the male terminal and the 1st elastic piece contact | abutted, Comprising: Sectional drawing corresponded in the cross section in the BB line of FIG. Sectional drawing which shows the state which the male terminal and the 1st elastic piece contact | abutted, Comprising: Sectional drawing corresponded in the cross section in CC line of FIG. Sectional drawing which shows the state in which the male terminal pressed the 1st elastic piece, and the 2nd contact part was pressed against the male terminal, Comprising: Sectional drawing equivalent to the cross section in the BB line of FIG. Sectional drawing which shows the state in which the male terminal pressed the 1st elastic piece and the 2nd contact part was pressed against the male terminal, Comprising: Sectional drawing equivalent to the cross section in the CC line of FIG. Sectional drawing which shows the state by which the male terminal was inserted to the regular position with respect to the connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the BB line of FIG. It is sectional drawing which shows the state by which the male terminal was inserted to the regular position with respect to the connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the CC line of FIG. Front view of female terminal according to embodiment 2 FIG. 13 is a cross-sectional perspective view taken along line DD in FIG. The top view which shows the expansion | deployment state of the female terminal which concerns on Embodiment 2. FIG.

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS.
This embodiment illustrates the female terminal 10 that is electrically connected to the male terminal 50. In the following description, the vertical direction refers to the vertical direction in FIG. 1, and the front-rear direction refers to the connection between the female terminal 10 and the male terminal 50 in FIG. The direction will be described as the front.

The male terminal 50 is formed by bending a metal plate having excellent conductivity, and has a flat tab portion 51 at the front as shown in FIG.
The female terminal 10 is formed by bending a metal plate having excellent conductivity. As shown in FIG. 5, the connection terminal 11 into which the tab portion 51 of the male terminal 50 is inserted from the front is connected. An electric wire crimping portion 12 formed continuously from the rear of the tube portion 11 is provided.
The wire crimping portion 12 is configured such that a wire barrel portion 13 that is crimped to the core wire W1 exposed at the end of the wire W and an insulation barrel portion 14 that is crimped to the insulating coating W2 are connected in the front-rear direction.

  As shown in FIGS. 1 and 2, the connecting tube portion 11 is formed by being bent into a flat rectangular tube shape in the width direction, and is sandwiched between the ceiling plate 11 </ b> B of the connecting tube portion 11 and protruding downward. 11C is provided. Further, as shown in FIGS. 5 to 12, the connecting cylinder part 11 is open in the front-rear direction, and the connecting cylinder part is connected to the lower edge of the front end opening of the connecting cylinder part 11 from the bottom plate 11 </ b> A of the connecting cylinder part 11. A first elastic piece 15 is provided that is folded back toward the inside.

  As shown in FIGS. 5, 7, 9, and 11, the first elastic piece 15 is configured to extend obliquely upward toward the rear and intersects with the insertion direction of the tab portion 51. It is possible to elastically displace in the up-down direction, which is the direction of movement. Specifically, as shown in FIG. 3, the first elastic piece 15 is elastically displaced so that the rear end portion of the first elastic piece 15 draws a circular arc locus with the base end portion of the first elastic piece 15 as a fulcrum. The first elastic piece 15 includes a wide portion 16 slightly extending obliquely rearward from the lower edge of the front end opening of the connection tube portion 11, and from the rear end edge of the wide portion 16 to the rear end portion of the connection tube portion 11. And a narrow portion 17 extending obliquely rearward.

  The wide portion 16 is provided over the entire width of the bottom plate 11 </ b> A of the connecting cylinder portion 11, and the narrow portion 17 is provided at the substantially central portion in the width direction at the rear end edge of the wide portion 16. The narrow portion 17 is configured to be flush with the wide portion 16. As shown in FIGS. 1 and 4, the width of the narrow portion 17 is slightly more than 1/3 that of the wide portion 16. The width dimension is set.

  As shown in FIGS. 11 and 12, the rear end portion of the narrow portion 17 is electrically connected to the tab portion 51 of the male terminal 50 inserted from the front into the connecting tube portion 11. The first contact portion 18 elastically clamps the tab portion 51 of the male terminal 50 inserted from the front end opening of the connecting tube portion 11 together with the holding portion 11C of the ceiling plate 11B in the connecting tube portion 11. It is like that. Specifically, when the tab portion 51 is inserted from the front end opening of the connecting tube portion 11, as shown in FIGS. 7 and 8, the front end portion of the tab portion 51 is approximately the center portion in the front-rear direction of the first elastic piece 15 ( It abuts on the front side of the narrow portion 17). Then, when the tab portion 51 is further inserted as it is, as shown in FIGS. 9 and 10, the front end portion of the tab portion 51 is slightly rearward from the substantially central portion in the front-rear direction of the first elastic piece 15 (the narrow portion 17). Is pressed from above, and the first elastic piece 15 is elastically displaced downward. Further, when the tab portion 51 is inserted into the connecting tube portion 11 and the tab portion 51 is inserted to the regular position, the first elastic piece 15 is elastically displaced to the regular position as shown in FIGS. 11 and 12. Then, the front end portion of the tab portion 51 is elastically clamped from above and below by the clamping portion 11C and the first contact portion 18 by the restoring force of the first elastic piece 15. Thereby, the tab part 51 and the 1st contact part 18 are electrically connected.

  As shown in FIGS. 6, 8, 10, and 12, the first elastic piece 15 has a rear end edge that is elastically displaceable in the vertical direction, which is a direction intersecting the insertion direction of the tab portion 51. Two elastic pieces 19 are provided continuously. The second elastic piece 19 is elastically displaceable in the vertical direction with a portion where the first elastic piece 15 and the second elastic piece 19 are connected as a fulcrum. Further, the second elastic piece 19 is folded back toward the front from the rear end edge of the first elastic piece 15 and extends obliquely forward to a position where the second elastic piece 19 comes into contact with the bottom plate 11A of the connecting cylinder portion 11, and a base portion And a pair of contact portions 21 projecting from both side edges in the width direction and extending upward at the front end portions of the width direction.

As shown in FIG. 1, the pair of contact portions are arranged in regions on both sides in the width direction at the substantially central portion in the front-rear direction of the first elastic piece 15, and a metal is interposed between the narrow portion 17 and the contact portion 21. A clearance CL narrower than the plate thickness dimension of the plate material is set.
Further, as shown in FIG. 4, the pair of contact portions are arranged on both sides in the width direction from the both side edges in the width direction at the front end portion of the base portion 20 in the unfolded state before the connection cylinder portion 11 is bent. After projecting to the front, it has a form extending forward. The distance L1 between the front end portions of the pair of contact portions 21 is greater than the dimension obtained by combining the plate thickness dimension of the two metal plate members that are the base material of the female terminal 10 and the width dimension L2 of the narrow portion 17. It is set to be smaller and larger than the width dimension L2 of the narrow portion 17. As a result, a clearance CL narrower than the plate thickness dimension of the metal plate material is set between the narrow portion 17 and the contact portion 21 after bending.

As shown in FIGS. 6, 8, 10, and 12, the tip of each contact portion 21 is bent downward so as to be rounded, and the upper end of the bent portion is a male terminal. The second contact portion 22 is electrically connected to the 50 tab portions 51. The second contact portion 22 is located on the front side of the position where the tab portion 51 presses the first elastic piece 15 (a position slightly rearward of the substantially elastic central portion of the first elastic piece 15). When the elastic piece 15 and the second elastic piece 19 are in a natural state, they are set at substantially the same height as the upper surface 17A of the narrow portion 17 of the first elastic piece 15 as shown in FIG.
And when the 1st elastic piece 15 is pressed by the tab part 51 and elastically moves downward, the rear-end part of the 1st elastic piece 15 will be displaced so that a circular arc may be drawn, and it shows in FIG. 9 and FIG. As described above, the front end portion 20A of the base portion 20 and the lower end portion 21A of the contact portion 21 are pressed against the bottom plate 11A of the connecting tube portion 11, and the front end portion 20A of the base portion 20 and the lower end portion 21A of the contact portion 21 are used as fulcrums. As the second contact portion 22 is gradually pushed upward, the second contact portion 22 is elastically pressed against the lower surface 51 </ b> A of the tab portion 51.

When the first elastic piece 15 is elastically displaced to the normal position, the second contact portion 22 is pressed against the lower surface 51A of the tab portion 51 from below with a predetermined contact pressure, as shown in FIG. Is substantially clamped from above and below by the clamping part 11C and the second contact part 22 of the connecting cylinder part 11.
That is, when the tab portion 51 is inserted to the regular position with respect to the connecting cylinder portion 11, the tip end portion of the tab portion 51 and the first contact portion 18 are electrically connected, and the tab portion 51 is approximately centered in the front-rear direction. And the second contact portion 22 are electrically connected. Thereby, the female terminal 10 and the male terminal 50 are firmly electrically connected, and connection stability is ensured.

The female terminal 10 of the present embodiment has the above-described configuration, and the operation and effect when the female terminal 10 and the male terminal 50 are connected will be described.
First, as shown in FIG. 5 or FIG. 6, the male terminal 50 and the female terminal 10 are arranged facing each other, and the tab portion 51 of the male terminal 50 is inserted from the front end opening of the connecting tube portion 11.

  When about half of the tab portion 51 is inserted into the connecting cylinder portion 11, as shown in FIG. 7, the front end portion of the tab portion 51 is substantially at the center in the front-rear direction of the first elastic piece 15 (in front of the narrow portion 17. The second contact portion 22 of the second elastic piece 19 contacts the lower surface 51A of the tab portion 51 without pressing the tab portion 51 from below, as shown in FIG.

  When the tab portion 51 is further inserted into the connecting cylinder portion 11 from this state, as shown in FIG. 9, the tab portion 51 presses the substantially central portion in the front-rear direction of the narrow portion 17 from above, and the first elastic piece Since the elastic displacement 15 is downward, the rear end portion of the first elastic piece 15 is displaced so as to draw an arc. Then, as shown in FIG. 10, the front end portion 20A of the base portion 20 of the second elastic piece 19 and the lower end portion 21A of the contact portion 21 are pressed against the bottom plate 11A of the connecting tube portion 11, and the front end portion 20A and the contact portion of the base portion 20 are pressed. The second contact portion 22 of the contact portion 21 is gradually pushed upward with the lower end portion 21A of the contact 21 as a fulcrum. Then, the second contact portion 22 protrudes upward from the position of the upper surface 17A of the narrow portion 17, and the pair of second contact portions 22 are gradually pressed against the lower surface 51A of the tab portion 51 from below.

  Finally, when the tab portion 51 is inserted to the regular position with respect to the connecting tube portion 11, the first elastic piece 15 is elastically displaced to the regular position as shown in FIG. The part is elastically clamped from above and below by the clamping part 11C of the connecting cylinder part 11 and the first contact part 18. Further, when the first elastic piece 15 is elastically displaced to the normal position, the second contact portion 22 is pressed against the lower surface 51A of the tab portion 51 with a predetermined contact pressure as shown in FIG. Is substantially clamped from above and below by the clamping part 11C and the second contact part 22 of the connecting cylinder part 11. Thereby, the female terminal 10 and the male terminal 50 are electrically connected.

  As described above, according to the female terminal 10 of the present embodiment, the second contact portion with respect to the lower surface 51 </ b> A of the tab portion 51 after the distal end portion of the tab portion 51 is in contact with the first elastic piece 15 and pressed from above. 22 is elastically pressed. That is, compared with the case where the contact load of the elastic piece with respect to the tab portion 51 is simply increased to ensure connection stability, the insertion resistance of the tab portion 51 is reduced and the first contact portion 18 with respect to the tab portion 51 is reduced. And the second contact portion 22 can be firmly electrically connected to ensure connection stability.

In addition, the first elastic piece 15 comes into contact with the distal end portion of the tab portion 51 at the initial stage of insertion of the tab portion 51, and the second contact portion 22 disposed on both sides in the width direction of the first elastic piece 15 from the middle of insertion of the tab portion 51. Is pressed against the lower surface 51 </ b> A of the tab portion 51. That is, since there are few first elastic pieces 15 in which the insertion resistance is higher than that of the second elastic piece 19, for example, compared to the case where more first elastic pieces are provided than the second elastic piece, The insertion resistance at the initial stage of insertion can be further reduced.
Furthermore, in the case of a configuration in which the elastic piece is pressed a plurality of times by the tip portion of the tab portion 51, the insertion resistance increases each time the tip portion of the tab portion 51 presses the elastic piece, and the insertion feeling deteriorates. End up. However, according to the present embodiment, the second contact portion 22 is gradually pressed against the lower surface 51 </ b> A of the tab portion 51 after the distal end portion of the tab portion 51 presses the first elastic piece 15. The insertion feel ring can be smooth.

Further, according to the present embodiment, the second elastic piece 19 is provided continuously to the rear end edge of the first elastic piece 15, and the second elastic piece 19 is moved to the tab portion as the first elastic piece 15 is elastically displaced. 51, the first elastic piece and the second elastic piece are separately provided in the connecting cylinder portion, and the second elastic piece is pressed against the first elastic piece, for example. Compared to a complicated structure in which the second contact portion contacts the tab portion in conjunction with one elastic piece, the configuration of the connecting tube portion 11 can be simplified.
The second elastic piece 19 is folded forward from the rear end edge of the first elastic piece 15, and a pair of contact portions 21 are arranged side by side in the width direction in regions on both sides in the width direction of the first elastic piece 15. Therefore, for example, compared to the configuration in which the second elastic piece is further extended toward the front at the front end edge of the first elastic piece extending toward the front from the rear end portion of the connecting tube portion, The length dimension of the cylinder part 11 in the front-rear direction can be shortened.

  By the way, when the first elastic piece and the second elastic piece are formed side by side in the width direction, a slit is generally formed between the first elastic piece and the second elastic piece by punching a metal plate material, A method of arranging the elastic piece and the second elastic piece in the width direction is conceivable, but in such a case, in order to ensure the durability of the mold during punching, the width of the slit is set to the thickness of the metal plate. It is desirable to make it larger than the dimension. However, if the slit is set larger than the plate thickness dimension and the plurality of elastic pieces are in the width direction, the width dimension of the connecting tube portion is increased by the amount of the slit in the width direction, and the female terminal is in the width direction. It will increase in size.

  However, according to the present embodiment, the second elastic piece 19 is folded forward from the rear end edge of the first elastic piece 15, and the first elastic piece 15 and the second elastic piece 19 are arranged in the width direction. The interval in the width direction between the narrow portion 17 of the one elastic piece 15 and the contact portion 21 of the second elastic piece 19 is made smaller than the plate thickness dimension of the metal plate material. Thereby, compared with the case where the first elastic piece and the second elastic piece are arranged in the width direction by simply punching with a mold, the connecting tube portion 11 can be downsized in the width direction.

In addition, for example, in the connection tube portion, when the pair of second elastic pieces are biased on one side in the width direction, the bias is transmitted when transmitting the force pressed by the first elastic piece to the second elastic piece. This may cause variation in the contact pressure of the second contact portion with respect to the tab portion.
However, according to the present embodiment, since the second elastic pieces 19 are arranged in the regions on both sides in the width direction of the first elastic pieces 15, the bias of the force transmitted from the first elastic pieces 15 to the second elastic pieces 19 is reduced. Can be reduced. Thereby, compared with the case where the 2nd elastic piece is biased and provided in the one side of the width direction, the bias of the contact pressure of the 2nd contact part 22 to the tab part 51 can be reduced.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
The female terminal 110 of the second embodiment is obtained by changing the shapes of the first elastic piece 15 and the second elastic piece 19 in the first embodiment, and the configuration, operation, and effect common to the first embodiment are overlapped. Therefore, the description is omitted. The same reference numerals are used for the same configurations as those in the first embodiment.

The first elastic piece 115 according to the second embodiment includes a wide portion 116 slightly extending obliquely rearward from a lower edge in the front end opening of the connection tube portion 111 and a connection tube portion from both sides in the width direction at the rear end edge of the wide portion 116. 111 and a pair of narrow portions 117 extending obliquely rearward to the rear end portion. The narrow portion 117 is connected to the wide portion 116 so as to be flush with the wide portion 116. As shown in FIGS. 13 and 15, the width dimension of the narrow portion 117 is slightly less than 1/3 of the wide portion 116. The width dimension is set.
The rear end portion of each narrow portion 117 is a first contact portion 18 that is electrically connected to the tab portion 51 of the male terminal 50 that is inserted into the connection tube portion 111 from the front. And when the tab part 51 is inserted from the front-end opening of the connection cylinder part 111, the front-end | tip part of the tab part 51 is the front-back direction approximate center part of a pair of 1st elastic pieces 115 (position near the front of the narrow part 117). The first elastic piece 115 is pressed downward from the upper side of the first elastic piece 115 from the upper side (substantially the central part of the narrow portion 117). It is elastically displaced toward.
When the tab portion 51 is inserted to the normal position, the first elastic piece 115 is elastically displaced to the normal position, and the front end portion of the tab portion 51 is held between the ceiling plate 11B by the restoring force of the first elastic piece 115. The portion 11C and the pair of first contact portions 18 are elastically sandwiched from above and below.

As shown in FIG. 14, the second elastic piece 119 of the second embodiment is formed by being folded back from the rear end edge of the first elastic piece 115. Further, the second elastic piece 119 is folded back toward the front from the rear end edges of the pair of first elastic pieces 115 and extended diagonally forward to a position where the second elastic piece 119 comes into contact with the bottom plate 11A of the connecting cylinder portion 11. 120 and a front end portion of the pair of base portions 120 are connected in the width direction, and a contact portion 121 extending upward from the connected portion is configured.
As shown in FIG. 15, the contact portion 121 is connected to the front end portions of the pair of base portions 120 in the width direction in the expanded state before bending the connecting cylinder portion 111, and forwards from the connected portion. It has an extended form. Further, the width dimension L11 of the front end portion of the contact part 121 is smaller than the dimension obtained by subtracting the plate thickness dimension of the two metal plate members as the base material of the female terminal 10 from the distance L12 between the pair of narrow portions 117. The distance is set to be larger and smaller than the distance L12 between the pair of narrow portions 117.

  When the connecting cylinder portion 111 is formed by bending, the contact portion 121 is arranged between the pair of first elastic pieces 115 as shown in FIG. It will be in the state arranged in the width direction. In other words, the first elastic piece 115 is arranged in the region on both sides in the width direction of the contact portion 121 in the second elastic piece 119, and the plate thickness of the metal plate material is between the pair of narrow portions 117 and the contact portion 121. A clearance CL narrower than the dimension t is set. Thereby, the connecting cylinder part 111 can be reduced in the width direction as compared with the case where the slits are simply formed by punching with a mold, and the first elastic piece and the second elastic piece are arranged in the width direction. Further, the tip of the contact portion 121 is bent downward so as to be round like the contact portion 21 of the first embodiment, and the upper end portion of the bent portion is electrically connected to the tab portion 51. The second contact portion 122 is used.

  That is, according to the present embodiment, at the initial insertion of the tab portion 51, the pair of narrow portions 117 come into contact with the tab portion 51 at positions on both sides in the width direction in the connection tube portion 111, and the connection tube portion 111 is inserted from the middle of the insertion. The second contact portion 122 of the second elastic piece 119 contacts at the center in the width direction. That is, since it is possible to prevent the connecting tube portion 111 from rotating in the width direction with the center portion in the width direction as a fulcrum at the initial insertion of the tab portion 51, the tab portion 51 is inserted into the connecting tube portion 111 in an incorrect posture. Thus, it is possible to prevent the connecting tube portion 111 and the tab portion 51 from being damaged.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the second elastic pieces 19 and 119 are folded back toward the front end of the first elastic pieces 15 and 115 extending rearward from the front end opening edges of the connecting tube portions 11 and 111. However, the present invention is not limited to such an embodiment. For example, the first elastic piece extends forward from the rear end portion of the connecting tube portion, and the second elastic piece is formed. The first elastic piece may be formed to extend forward from the front end edge.
(2) In the first embodiment, a pair of second elastic pieces 19 are provided in the regions on both sides in the width direction of the first elastic piece 15, and in the second embodiment, in the regions on both sides in the width direction of the second elastic piece 119. The pair of first elastic pieces 115 is provided, but the present invention is not limited to such an embodiment. For example, even if the first elastic pieces and the second elastic pieces are configured in the same number. In addition, three or more second elastic pieces may be configured for one first elastic piece.
(3) In the above embodiment, the second elastic pieces 19 and 119 are connected to the rear end edges of the first elastic pieces 15 and 115. However, the present invention is not limited to such an embodiment. For example, the second elastic piece is formed separately from the first elastic piece by cutting up the bottom plate of the connecting cylinder portion, and the second elastic piece is pressed from above by the first elastic piece. You may make it contact the lower surface of a tab part.

10: Female terminal 11: Connection cylinder portion 15, 115: First elastic piece 19, 119: Second elastic piece 50: Male terminal

Claims (6)

A female terminal having a connecting tube portion into which a plate-shaped male terminal is inserted from the front,
A first elastic piece that is provided in the connecting tube portion and is elastically contacted with the same male terminal by being pressed by the male terminal in a direction intersecting the insertion direction of the same male terminal;
The male terminal is arranged in front of the position where the first elastic piece is pressed in the connection tube portion, and the male terminal presses the first elastic piece, and then the same male terminal with respect to the plate surface of the male terminal. The female terminal provided with the 2nd elastic piece pressed in the direction which cross | intersects the insertion direction of a terminal. The second elastic piece is provided continuously to the first elastic piece,
2. The female terminal according to claim 1, wherein the first elastic piece is pressed and elastically displaced, whereby the second elastic piece is elastically displaced and pressed against the male terminal in conjunction with the first elastic piece. The first elastic piece is configured to extend rearward from the front end portion of the connection tube portion,
3. The female terminal according to claim 2, wherein the second elastic piece is folded forward from a rear end portion of the first elastic piece and arranged side by side in the width direction with the first elastic piece.   The female terminal according to claim 2 or 3, wherein the first elastic piece is provided in a smaller number than the second elastic piece. The second elastic piece is disposed in the center portion in the width direction of the connection tube portion,
4. The female terminal according to claim 2, wherein the first elastic piece is disposed in each of regions on both sides in the width direction of the second elastic piece. 5. The first elastic piece is disposed in the center portion in the width direction of the connection tube portion,
The female terminal according to any one of claims 2 to 4, wherein the second elastic piece is disposed in each of regions on both sides in the width direction of the first elastic piece.

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