JP2018026196A - Female side terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a female side terminal capable of obtaining a desired contact force between itself and a male side terminal even when being miniaturized, and maintaining a stable contact.SOLUTION: A female side terminal W comprises: a hollow cylinder box part 10 having an upper wall 13, a bottom wall 11, and both side walls 12; and an elastic contact part T that is brought into contact with a male side terminal 400 inserted from an opening 10a of the box part 10. In the bottom wall 11, a contact piece T1 that is cut out from the bottom wall 11 and is bent in a concave form toward the upper wall 13 is provided, and a hole part 11b formed by providing the contact piece T1 is projected. In both side walls 12, a groove part S extended from a lower end of one end part side of the box part 10 while communicating with the hole part 11b to an upper end of the other end part side is formed. The elastic contact part T includes: a contact piece T1; a first interlock part T2 forming a part of the bottom wall 11 extended from a base end part T1a of the contact piece T1; and a second interlock part T3 forming one part of both side wall 12 extended to the groove part S from both sides of the first interlock part T2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a female terminal, for example, a female terminal of an automobile connector used for connection of a wire harness or the like.

  Automotive connectors used for connecting wire harnesses and the like are required to have high reliability, and a structure capable of maintaining a large contact force as compared with connection terminals (general terminals) of personal computers and home appliances is required. For this reason, automobile connectors are designed to maintain a desired contact force, and various configurations have been proposed.

Here, two examples of the structure of the connection terminal of the conventional automobile connector will be described.
First, the first prior art will be described with reference to FIGS. FIG. 10 is a schematic diagram showing the appearance of the female terminal constituting the female connector of the prior art. FIG. 11 is a schematic diagram showing a male terminal and a female terminal in the prior art. FIG. 12 is a schematic diagram for explaining the relationship between the female terminal of the prior art and the lance of the housing that houses the female terminal.

  The female terminal 200 shown in the figure has a hollow rectangular tube-shaped box portion 210 formed on the front end side, and a wire connecting portion 220 for connecting the end portion of the electric wire on the rear end side. The box portion 210 is composed of a bottom wall 211, an upper wall 213, and left and right side walls 212, and an opening 210a into which the male terminal 400 is inserted is formed at the front end portion thereof. In addition, an elastic contact piece 214 is provided on the upper surface side of the bottom wall 211 of the box part 210 to hold the male terminal 400 with the upper wall 213 when the male terminal 400 is inserted into the opening 210a. (See FIG. 11).

  This elastic contact piece 214 is formed by folding a strip-shaped spring piece extending from the front end of the bottom wall 211 upward at its base end and bending its tip toward the rear side, and extending the spring piece backward. The structure is such that the middle part in the length direction is bent in a U-shape so as to bulge toward the upper wall 213, and the free end (tip) is slidably contacted with the upper surface of the bottom wall 211. It has become.

  When the male terminal 400 is inserted in the arrow direction (X direction) shown in FIG. 11 with respect to the female terminal 200 described above, the male terminal 400 contacts the top of the elastic contact piece 214 bent in a U shape. By contact, the elastic contact piece 214 is elastically displaced downward. The male terminal 400 inserted into the female terminal 200 is urged toward the upper wall 213 by the elastic force of the elastic contact piece 214 that is elastically displaced, and is held between the elastic contact piece 214 and the upper wall 213. . At this time, the free end of the elastic contact piece 214 is slidably brought into contact with the upper surface of the bottom wall 211. According to the configuration of the elastic contact piece 214, the inserted male terminal 400 can be sandwiched between the elastic contact piece 214 and the upper wall 213 so that the contact force with respect to the male terminal 400 can be maintained. It has become.

The female terminal 200 is locked to a bottom wall 211 of the box portion 210 to be locked to a lance portion L (see FIG. 12) formed in a housing (not shown) that houses the female terminal 200. A hole 211a is formed. The female terminal 200 is mounted on a housing (not shown) by inserting and locking the lance L into the locking hole 211a.
In addition, the female side terminal provided with the elastic contact piece 214 of the structure similar to the female side terminal 200 mentioned above is described in FIG.

  Next, the second prior art will be described with reference to FIG. FIGS. 13A and 13B are schematic diagrams for explaining the female terminal constituting the female connector of the prior art. FIG. 13A is a schematic diagram showing one side surface of the female terminal, and FIG. The schematic diagram which showed the upper surface of the side terminal, (c) is the schematic diagram which showed the other side surface of the female side terminal, (d) is the schematic diagram which cut | disconnected the female side terminal and showed the inside.

  The female terminal 300 shown in the drawing has a hollow rectangular tube-shaped box portion 310 formed on the front end side, and a wire connecting portion 320 for connecting the end portion of the electric wire on the rear end side. The box portion 310 includes a bottom wall 311, an upper wall 313, and left and right side walls 312. The female terminal 300 has an opening 310a into which a male terminal (not shown) is inserted at the front end, and a terminal contact portion 311a that contacts the male terminal on the bottom wall 311. A contact portion Z that comes into contact with the male terminal inserted from the opening 310a is provided.

The contact portion Z includes a cantilevered contact arm (spring body) 330 that extends from the position near the opening 310a of the upper wall 313 toward the wire connection portion 320 (in the insertion direction of the male terminal), and a contact arm. (Spring body) 330 is provided with an interlocking arm (side spring) 312a connected to one side surface of the tip portion. This interlocking arm (side spring) 312 a is formed on one side wall 312 of the two side walls 312 of the hollow rectangular tube-shaped box portion 310. According to this configuration, a larger elastic force can be obtained than when the contact arm (spring body) 511 operates alone.
Note that the female terminal 300 in which the interlock arm 312a is provided only on one side wall of the box part 310 and is connected to one side surface of the front end part of the contact arm 330 as described above is disclosed in, for example, Patent Literature 2 is disclosed.

FIG. 8 of Japanese Patent No. 5065976 JP 2006-54166 A

  By the way, in recent years, the connector for automobiles tends to be miniaturized, and the size of the female terminal of the connector is also reduced. When the above-described conventional female terminal 200 (see FIGS. 10 to 12) is downsized, it is necessary to reduce the size and thickness of the elastic contact piece 214, and accordingly, from the male terminal. The reaction force (elastic force) against the received load is also reduced, and there is a possibility that a desired contact force cannot be maintained. That is, the structure of the elastic contact piece obtained by folding and bending a strip-shaped spring piece such as the elastic contact piece 214 has a problem that when it is downsized, sufficient elastic force cannot be exhibited. This problem tends to become more prominent as the connector becomes smaller.

  In the second prior art (see FIG. 13), the interlocking arm (side spring) 312a connected to the contact arm (spring body) 330 is provided on one side wall 312 (the function of the spring). As a result, a large elastic force can be obtained as compared with the configuration of only the contact arm (spring main body) 330. However, in this prior art, an interlocking arm (side spring) 312 a is provided only on one side wall 312, and the interlocking arm (side spring) 312 a is connected only to one side of the tip of the contact arm (spring body) 330. Due to the configuration, when the male terminal is inserted, the contact arm (spring body) 330 is displaced to one side, and there is a possibility that stable contact with the male terminal may not be obtained. Has a problem.

  In addition, like the female terminal 200 of the prior art in the first example described above, the box portion 210 (the bottom wall 211 in the illustrated example) is locked to the lance portion L (see FIG. 12). The configuration in which the hole 211a is formed and locked to the lance L causes the following problems. Specifically, according to the above-described configuration, the width dimension of the lance portion L to be engaged with the female terminal 200 is limited to a size smaller than the inner width dimension of the box portion 210 (the lance portion L is a box It is limited to a size that can be inserted into the portion 210 and locked). Therefore, if the female terminal 200 of the prior art is reduced in size, the width dimension of the lance part L is reduced accordingly, and the female terminal 200 cannot be locked to the lance part L with sufficient strength. is assumed. In such a case, it is assumed that the female terminal 200 is displaced from the desired position or rattling, and as a result, there is a possibility that stable contact cannot be obtained with the male terminal.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a female terminal that can obtain a desired contact force with a male terminal even if it is downsized and can maintain stable contact. It is to provide.

  The present invention, which has been made to solve the above problems, includes a hollow cylindrical box portion having an upper wall, a bottom wall, and both side walls, and a male side inserted into the inside from an opening formed at one end of the box portion. A female terminal having an elastic contact portion that contacts the terminal, wherein the bottom wall on one end side of the box portion is cut and raised from the bottom wall and bent in a convex shape toward the upper wall. A cantilevered contact piece formed in a letter shape is provided, and a hole formed by providing the contact piece is drilled, and both side walls of the box part are respectively A groove portion is formed which communicates with the hole portion and extends from the lower end on one end side of the box portion toward the upper end on the other end side, and the elastic contact portion is formed from the contact piece and a base end portion of the contact piece. It is constituted by a part of the bottom wall extending toward the other end of the box part. A first interlocking portion having a pair of second interlocking portions formed by a part of the side walls extending from both sides of the first interlocking portion to the groove portion at a substantially right angle. Features.

  When the male terminal is inserted from the opening of the box portion, the elastic contact portion is elastically displaced downward and elastically displaced by the male terminal contacting the top of the contact piece. It is desirable that the male terminal is urged toward the upper wall by the elastic force of the elastic contact portion so that the male terminal is sandwiched between the contact piece and the upper wall.

  Thus, in the present invention, the elastic contact portion is not a structure in which the strip-shaped spring piece is folded back and bent into a U-shape as in the above-described prior art, but is cut and raised from the bottom wall and formed on the upper wall. A cantilevered contact piece formed into a convex shape bent toward the convex shape, and a part of the bottom wall extending from the base end portion of the contact piece toward the other end portion of the box portion The first interlocking portion is configured, and a pair of second interlocking portions configured by a part of both side walls extending from both sides of the first interlocking portion to a groove portion at a substantially right angle. . That is, the elastic contact portion has a configuration in which a first interlocking portion extending from the contact piece and a first extending from both sides of the first interlocking portion in a vertical direction (a direction in which a load is received from the male terminal). A second interlocking portion of the pair is included. According to this configuration, the reaction force (elastic force) against the load received from the male terminal can be designed larger than the structure of the elastic contact piece 214 (see FIG. 11) of the first prior art described above. As a result, it is possible to provide a female terminal that can obtain a desired contact force with the male terminal even when the size is reduced.

  Further, the elastic contact portion of the present invention has an interlocking arm (side spring) only on one side of the contact arm (spring main body) 330, like the contact portion Z of the second prior art (see FIG. 13). Instead of the configuration provided with 312a, a pair of second interlocking portions extending from both sides of the first interlocking portion extending from the base portion of the contact piece is provided. According to this configuration, the contact piece in contact with the male terminal is not displaced to one side, and compared with the contact portion Z of the second prior art (see FIG. 13), the contact piece Z is between the male terminal. Stable contact is obtained.

  The present invention also provides a female side provided with a hollow cylindrical box part and an elastic contact part having a contact piece that contacts a male terminal inserted into the inside from an opening formed at one end of the box part. The terminal is locked to a lance portion formed in a housing for accommodating the female-side terminal at a portion of the outer peripheral portion of the box portion, which is on the outer side of the contact piece and on the opening side. The hook part for performing is protruding, It is characterized by the above-mentioned.

  As described above, according to the present invention, the outer cylindrical portion of the hollow cylindrical box portion is formed on the outer side of the contact piece and on the opening side of the housing that accommodates the female terminal. A hook portion for locking to the lance portion is provided. According to this configuration, the width dimension of the lance part L is limited to a dimension smaller than the inner width dimension of the box part as in the female terminal 200 (see FIG. 12) of the first prior art described above. Therefore, the lance portion can be designed so as to have a size that can lock the female terminal with sufficient strength. As a result, according to the configuration of the present invention, there is provided a female-side terminal that can be locked to a lance portion of the housing with a desired strength even when downsized, and that can stably contact with the male-side terminal. Is done.

  ADVANTAGE OF THE INVENTION According to this invention, even if it reduces in size, while being able to obtain desired contact force between male side terminals, the female side terminal which can maintain the stable contact can be provided.

It is the perspective view of the female side terminal of this embodiment, (a) is the perspective view which showed the external appearance of the female side terminal of this embodiment, (b) cut | disconnected the female side terminal of this embodiment, and showed the inside It is a perspective view. It is a figure for demonstrating the female side terminal of this embodiment, (a) is a top view of the female side terminal of this embodiment, (b) is a front view of the female side terminal of this embodiment, (c) is. It is a side view of the female side terminal of this embodiment. It is a figure for demonstrating the female side terminal of this embodiment, (a) is the side view which cut | disconnected the female side terminal of this embodiment, and showed the inside, (b) is the female side terminal of this embodiment. It is a bottom view. It is a schematic diagram for demonstrating operation | movement of the female side terminal of this embodiment, (a) is a schematic diagram which showed the side surface of the female side terminal of the state before a male side terminal is inserted, (b) is a male. The schematic diagram which cut | disconnected the female side terminal of the state before a side terminal was inserted, and showed the inside, (c) is the schematic diagram which cut | disconnected the female side terminal of the state in which the male side terminal was inserted, and showed the inside. . It is a schematic diagram for demonstrating the relationship between the female side terminal of this embodiment, and the lance formed in the housing, (a) is the schematic diagram which looked at the female side terminal from the downward direction, (b) is a female side It is the schematic diagram which looked at the terminal from the upper part. It is the perspective view which showed the female side connector with which the female side terminal of this embodiment was mounted | worn, and the male side connector corresponding to a female side connector. It is the perspective view which showed the female side connector with which the female side terminal of this embodiment was mounted | worn, and the male side connector corresponding to a female side connector. It is the perspective view which cut | disconnected the female side connector with which the female side terminal of this embodiment was mounted | worn, and showed the inside. It is the schematic diagram which showed the cross section of the female side connector with which the female side terminal of this embodiment is mounted | worn. It is the schematic diagram which showed the external appearance of the female side terminal which comprises the female side connector of a prior art. It is the schematic diagram which showed the male side terminal and female side terminal of the prior art. It is a schematic diagram for demonstrating the relationship between the female side terminal of a prior art, and the lance of the housing which accommodates a female side terminal. It is a schematic diagram for demonstrating the female side terminal which comprises the female side connector of a prior art, (a) is the schematic diagram which showed one side of the female side terminal, (b) shows the upper surface of the female side terminal. (C) is the schematic diagram which showed the other side surface of the female side terminal, (d) is the schematic diagram which cut | disconnected the female side terminal and showed the inside.

Hereinafter, a female terminal according to an embodiment of the present invention will be described with reference to the drawings.
First, the configuration of the female terminal of the present embodiment will be described with reference to FIGS.

  The female terminal W of the present embodiment is one into which a male terminal 400 (see FIG. 4) is inserted. For example, the female terminal W is housed inside a box-shaped housing (connector housing) 101 (see FIG. 6). The female connector 100 is used.

  As shown in FIGS. 1-3, the female side terminal W is comprised with electroconductive members, such as a metal, The hollow square tube-shaped box part 10 in which the male side terminal 400 is inserted in the one end side is formed. The other end side is formed with an electric wire connecting portion 50 for connecting the end portion of the electric wire 70. Further, the box portion 10 is provided with an elastic contact portion T that comes into contact with the inserted male terminal 400. As shown in FIGS. 4 and 5, the electric wire connecting portion 50 is connected by crimping the end portion of the electric wire 70, but since this configuration is the same as that of a well-known technique, a detailed description will be given. Is omitted.

As shown in FIGS. 1 to 3, the box portion 10 includes a bottom wall 11, an upper wall 13 opposite to the bottom wall 11, and left and right side walls erected substantially at right angles from both sides of the bottom wall 11. 12 and 12, and an opening 10 a into which the male terminal 400 is inserted is formed at the front end portion thereof.
The upper wall 13 is bent at a substantially right angle from the upper end of one side wall 12 and extends to the upper end of the other side wall 12, and extends from the upper end of the other side wall 12 and is folded back in an arc shape. The upper wall 13b is configured such that an end of the upper wall 13b is superposed on the upper surface of the upper wall 13a (see FIG. 2B). The upper wall 13a is provided with a terminal contact portion 13a1 that comes into contact with the inserted male terminal 400.

Further, a hook portion 17 for locking to a lance portion L (see FIG. 5) formed on the housing 101 that accommodates the female terminal W is provided at the front end portion of the bottom wall 11 constituting the box portion 10. 11 is formed so as to protrude from 11. More specifically, in the present embodiment, the hook portion 17 is on the outer side (lower side) of the elastic contact portion T (contact piece T1) in the outer peripheral portion of the box portion 10, and the elastic contact portion T. Rather than the opening 10a side (front side).
In the present embodiment, the hook portion 17 extends from the front end portion of the bottom wall 11 and is formed in a substantially U shape with its tip bent toward the rear side, but is not particularly limited thereto. It is not something. The hook portion 17 is appropriately designed according to the shape of the lance portion L to be locked. Moreover, in this embodiment, although the hook part 17 is formed in the bottom wall 11, it is not limited to this in particular, You may form in parts other than the bottom wall 11 of the box part 10. FIG.

Further, a hole 11 a is formed in the bottom wall 11 on the other end side (rear end side) of the box portion 10. Further, the bottom wall 11 on the one end side (front end side) of the box portion 10 is a cantilever that is cut and raised from the bottom wall 11 and bent in a convex shape toward the upper wall 13. A contact piece T1 (contact piece T1 constituting the elastic contact portion T) is provided. In addition, a hole 11b formed by providing the contact piece T is formed in a portion of the bottom wall 11 where the contact piece T1 is provided.
Further, the both side walls 12 and 12 of the box portion 10 communicate with the hole portion 11b (connected to the hole portion 11b), respectively, and the other end from the lower end on the one end side (front end side) of the box portion 10 A groove S extending toward the upper end on the part side (rear end side) is formed. In addition, the groove part S of the one side wall 12 of the side walls 12 and 12 and the groove part S of the other side wall 12 have the same shape and are formed so as to face each other. As described above, the groove portions S having the same shape are provided on the side walls 12 and 12, so that the elastic contact portion T can be elastically deformed in a balanced manner.

  In addition, the groove portion S includes a notch portion S1 in which the lower end portion on the front end side of the side wall 12 is cut out in a substantially rectangular shape, and the other end side (rear end) of the box portion 10 from the rear end of the notch portion S1. And a long hole-shaped slit portion S2 extending obliquely toward the vicinity of the upper end of the side. The notch S1 is formed on the side wall 12 corresponding to the other end portion (on the wire connecting portion 50 side) of the hole portion 11b from the position of the side wall 12 corresponding to one end portion (end portion on the opening 10a side) of the hole portion 11b. It is formed so as to communicate with the hole 11b to a position. The slit portion S2 is formed so as to communicate with the cutout portion S1 (also communicates with the hole portion 11b), and in the vicinity of the base end portion T1a of the contact piece T1 constituting the elastic contact portion T described later. To the vicinity of the upper end portion on the other end side (rear end side) of the box portion 10.

  The elastic contact portion T includes a contact piece T1 described above and a part of the bottom wall 11b extending from the base end portion T1a of the contact piece T1 to the hole portion 11a toward the other end portion of the box portion 10. 1 interlocking part T2 and the structure which has a pair of 2nd interlocking part T3 comprised by a part of both side wall 12 extended from the right-and-left both sides of the 1st interlocking part T2 to the groove part S (slit part S2). It has become. The contact piece T1 has a thick portion T1b protruding in the thickness direction at a portion bent in a U-shape (a thick portion T1b protruding on the upper wall 13 side on the upper surface side of the contact piece T1). 3 (b)) is formed, and the tip portion is a free end.

Next, the operation of the female terminal W of this embodiment will be described with reference to FIG.
When the male terminal 400 is inserted into the opening 10a, the female terminal W comes into contact with the top of the contact piece T1 that constitutes the elastic contact portion T, and the top of the letter-shaped top of the contact piece T1. Is pressed downward. Moreover, if the top part of contact piece T1 is pressed below and receives a load, it will change from the state shown in FIG.4 (b) to the state shown in FIG.4 (c). Specifically, when the top part of the contact piece T1 is pressed and receives a load, the elastic contact part T is elastically displaced downward (in conjunction with the displacement of the contact piece T1, the first interlocking part T2 and the second interlocking part). T3 is elastically displaced). At this time, the elastic contact portion T urges the inserted male terminal 400 toward the terminal contact portion 13a1 of the upper wall 13 by a reaction force against the received load (by an elastic force). Thereby, the male side terminal 400 is clamped between the contact piece T1 of the elastic contact portion T and the terminal contact portion 13a1 of the upper wall 13a.

  Thus, the elastic contact portion T of the present embodiment includes the first interlocking portion T2 extending from the contact piece T1 and the vertical direction from both sides of the first interlocking portion T2 (direction in which a load is received from the male terminal). And a pair of second interlocking portions T3 extending in the direction. According to this configuration, the reaction force (elastic force) with respect to the load received from the male terminal 400 is designed to be larger than the structure of the elastic contact piece 214 (FIGS. 10 to 12) of the first prior art described above. Can do. As a result, according to the present embodiment, it is possible to provide the female terminal W for a connector that can obtain a desired contact force with the male terminal 400 even when the size is reduced.

  Further, the elastic contact portion T of the female terminal W of the present embodiment is one side of the tip end portion of the cantilevered contact arm (spring body) 330, like the contact portion Z of the second prior art described above. Is not provided with an interlocking arm (side spring) 312a connected only to the left and right sides of the first interlocking part T2 extending from the base end part T1a of the contact piece T1, and upward from the first interlocking part T2. A configuration in which a pair of second interlocking portions T3 extending substantially at right angles is provided. According to this configuration, the elastic contact portion T is not displaced toward one side, and stable contact with the male terminal 400 is obtained as compared with the contact portion Z (see FIG. 13) of the prior art. It is done.

Next, the structure of the female connector that accommodates the female terminal W of this embodiment will be described with reference to FIGS.
6 and 7 are perspective views showing the female connector to which the female terminal of the present embodiment is mounted and the male connector corresponding to the female connector. FIG. 8 is a perspective view showing the inside by cutting the female connector on which the female terminal of the present embodiment is mounted. FIG. 9 is a schematic diagram showing a cross-section of the female connector on which the female terminal of this embodiment is mounted.

As shown in FIGS. 6 and 7, the female connector 100 according to the present embodiment includes a housing 101 in which a plurality of accommodating portions (accommodating chambers) 102 for accommodating the female terminals W are formed, and each accommodating portion 102. And a female terminal W accommodated therein. An electric wire 70 is connected to the electric wire connection portion 50 of the female terminal W.
The male connector 150 includes a housing 151 that accommodates a number of male terminals 400 corresponding to the number of female terminals W accommodated in the female connector 100, and a male terminal 400 accommodated in the housing 151. It has.

  Then, when the housing 101 of the female connector 100 is aligned and inserted into the housing 151 of the male connector 150, the male terminal 400 accommodated in the male connector 150 becomes as shown in FIG. 4 described above. The corresponding female terminal W housed in the female connector 100 is brought into contact with and electrically connected.

  As shown in FIGS. 8 and 9, a lance portion L having a shape that can be locked to the hook portion 17 of the female terminal W is formed inside each housing portion 102 of the housing 101 of the female connector 100. Yes. And in this embodiment, the hook part 17 which protrudes from the bottom wall 11 of the box part 10 of the female side terminal W with respect to this lance part L is latched, and the female side terminal is attached to the housing 101. W is attached.

  Thus, in this embodiment, the hook part 17 for latching to the lance part L protrudes on the outer peripheral part of the hollow cylindrical box part 10 (in this embodiment, the bottom wall 11 of the box part 10). Has been. According to this configuration, the width dimension of the lance portion L is limited to a size that can be inserted into the box portion 10 like the female terminal 200 (see FIGS. 10 to 12) of the first prior art described above. It will not be done. Therefore, according to the present embodiment, the lance portion L can be designed so as to have a size that can lock the female terminal W with sufficient strength. As a result, according to the configuration of the present embodiment, the female terminal W that can be locked to the lance L of the housing 101 with a desired strength even if the size is reduced is provided.

  As described above, according to the present embodiment, a female that can maintain a desired contact force with the male terminal even when downsized and can be locked to the lance portion of the housing with a desired strength. A side terminal W can be provided.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible within the range of the summary.

W ... Female terminal 10 ... Box 10a ... Opening 11 ... Bottom wall 11a ... Hole 11b ... Hole 12 ... Side wall 13, 13a, 13b ... Upper wall 17 ... Hook 50 ... Electric wire connection S ... Groove S1 ... Cut Notch (groove)
S2 ... Slit (groove)
T: Elastic contact portion T1: Contact piece (elastic contact portion)
T1a: Base end part (elastic contact part)
T1b ... Thick part (elastic contact part)
T2 ... 1st interlocking part (elastic contact part)
T3 ... Second interlocking part (elastic contact part)

70 ... Electric wire

DESCRIPTION OF SYMBOLS 100 ... Female side connector 101 ... Housing 102 ... Accommodating part (accommodating chamber) 102
L ... Lance part

150 ... male connector 151 ... housing 400 ... male terminal

Also, the among the outer peripheral portion of the front Symbol box portion, a portion of the than the contact piece is the outer side and the opening side, engaging the lance portion formed in the housing for accommodating the female terminal It is desirable that the hook portion for projecting protrudes .

Claims (3)

A female side provided with a hollow cylindrical box part having an upper wall, a bottom wall, and both side walls, and an elastic contact part that comes into contact with a male terminal inserted inside from an opening formed at one end of the box part A terminal,
The bottom wall on one end side of the box portion is provided with a cantilever-shaped contact piece that is cut and raised from the bottom wall and bent into a convex shape toward the upper wall. And a hole formed by providing the contact piece is drilled,
Each side wall of the box part is formed with a groove part that communicates with the hole part and extends from the lower end on one end side of the box part toward the upper end on the other end side,
The elastic contact portion is
The contact piece;
A first interlocking portion configured by a part of the bottom wall extending from the base end portion of the contact piece toward the other end portion of the box portion;
A female terminal having a pair of second interlocking portions configured by a part of the both side walls extending from both sides of the first interlocking portion to the groove portion at a substantially right angle.   When the male terminal is inserted from the opening of the box portion, the elastic contact portion is elastically displaced downward by the contact of the male terminal with the top portion of the contact piece, and the elastically displaced elastic contact. 2. The male terminal is urged toward the upper wall by the elastic force of the portion, and the male terminal is sandwiched between the contact piece and the upper wall. Female terminal. A female-side terminal comprising a hollow cylindrical box portion and an elastic contact portion having a contact piece that comes into contact with a male-side terminal inserted into the inside from an opening formed at one end of the box portion,
A hook for locking to a lance portion formed in a housing for accommodating the female terminal at a portion of the outer peripheral portion of the box portion that is on the outer side of the contact piece and on the opening side. A female terminal having a protruding portion.

Images