JP5821831B2 - connector - Google Patents

Description

  The present invention relates to a connector.

Conventionally, the thing of patent document 1 is known as a female terminal provided with the connection cylinder part in which the male side connection part provided in the male terminal is inserted.
In the connection cylinder part, the elastic contact piece electrically connected with the male side connection part by elastically contacting with the male side connection part is formed. A protrusion is formed at the center in the width direction of the elastic contact piece, and this protrusion can be fitted in a groove formed on the lower surface of the male connection part in a form extending in the insertion direction of the male connection part. Has been. Then, when the male side connection portion and the elastic contact piece are electrically connected, the protrusion is fitted in the concave groove, and the male side connection portion and the elastic contact piece are prevented from moving in the width direction. By doing so, the fine sliding between the male side connection part and the elastic contact piece is suppressed.

JP 2001-351712 A

By the way, as a means for preventing these terminals from coming off in the housing, for example, there is a method of locking the terminals from the rear by a lance provided in the housing.
However, in general, the lance is configured to be elastically deformed so that the front end of the lance forms an arc shape with the basal end of the lance as a fulcrum. The front end portion of the lance is elastically deformed so as to be displaced obliquely forward, and when the terminal is properly inserted, the terminal is elastically restored to lock the terminal from the rear. For this reason, in a state where the terminal is inserted to the proper position and the lance is elastically restored, there is a clearance between the terminal and the lance so as to be displaced obliquely forward. Therefore, when vibration is received in a state in which the male housing that accommodates the male terminal and the female housing that accommodates the female terminal are fitted, the terminal rattles in the front-rear direction within each housing, and the elastic contact piece of the female terminal There is a possibility that so-called fine sliding wear occurs between the tabs of the male terminals, and the contact resistance between the terminals increases.

  The present invention has been completed based on the above situation, and an object thereof is to suppress fine sliding wear between terminals.

  As means for achieving the above object, the present invention includes a male housing having a hood portion, a female housing fitted in the hood portion, and a rear housing in the female housing, wherein the female housing is And a female terminal connected to the male terminal accommodated in the male housing when fitted into the hood, wherein the female terminal is provided on the male terminal. Is connected to the outer wall of the female housing, and when the female housing is fitted into the hood, the inner wall of the hood is pressed. A pressing portion that is displaced toward the inside of the female housing and presses the female terminal toward the front side is provided, and the female terminal is inserted into the connecting tube portion by being pressed by the pressing portion. Said Having characterized in that the extrusion unit to press the male terminal to the male housing by extruding side connecting portion to the front is provided.

  According to the connector having such a configuration, the male terminal is pressed against the male housing, thereby suppressing the rattling of the male terminal in the front-rear direction of the male housing and the female terminal by the male side connection portion and the pressing portion of the female housing. The back and forth rattling of the female terminal in the female housing can be eliminated. Thereby, it can suppress that fine sliding wear arises between a connection cylinder part and a male side connection part, and can suppress the increase in the contact resistance between terminals.

The following configuration is preferable as an embodiment of the present invention.
In the process of inserting the female terminal into the female housing, the pressing portion elastically deforms outward by interfering with the female terminal, and the female terminal reaches a proper position in the female housing. The lance that locks the female terminal from the rear side when the interference state with the female terminal is released and elastically restored may be adopted.
According to such a structure, the lance which latches a female terminal from the rear side can be used as a press part. Thereby, compared with the case where a press part is separately provided in a female housing, the structure of a female housing can be simplified and it can suppress that a female housing enlarges.

The female terminal has an extending piece bent toward the front side from the rear end edge of the connecting cylinder part, and a pressed part in which the rear end part of the extending piece is pressed against the pressing part; Further, the front end portion of the extending piece may be configured as the pushing portion.
According to such a configuration, since the pressing force pressed by the pressing portion can be transmitted to the male side connection portion only through the extension piece, for example, in the connection tube portion, the extrusion portion and the pressed portion are connected. Compared with the case of forming individually, the pressed portion can be surely pressed by the pressing portion, and the structure of the connecting tube portion can be simplified.

The pushing portion may be formed by bending the extending piece in a direction intersecting the insertion direction of the male side connecting portion.
According to such a configuration, even if the male side connecting portion is displaced in the direction intersecting the insertion direction in the connecting cylinder portion, the male side connecting portion and the pushing portion are easily brought into contact with each other, and the male side connecting portion is pushed out. It can be reliably pushed out by the part.

In the connecting tube portion, a side portion of the extending piece is formed with a locked portion that is locked from the rear side by the pressing portion when the female terminal is pulled rearward. Also good.
For example, when only the pressed portion that is the rear end portion of the extended piece is locked from the rear side by the pressing portion, when the female terminal is strongly pulled to the rear side, the extended piece is excessively bent toward the front side. As a result, the extended piece may be damaged. However, according to the above configuration, when the female terminal is strongly pulled to the rear side, the locked portion is locked from the rear side by the pressing portion. It can be surely retained.

It is good also as a structure which the taper-shaped press surface which inclines toward the front is formed in the position which contact | abuts with the said female terminal of the said press part toward the outer side from the inner side of the said female housing.
According to such a configuration, when the pressing portion is displaced, the terminal can be smoothly pressed to the front side by the pressing surface. Thereby, a female housing can be smoothly inserted in the hood part of a male housing, and it is excellent in workability | operativity and operation feeling.

The pressing portion is provided with a protruding portion that protrudes outward from the outer surface of the female housing. When the female housing is fitted into the hood portion, the protruding portion is pressed against the inner wall of the hood portion. Thus, the pressing portion may be displaced toward the inside of the female housing.
For example, as a means for displacing the pressing portion into the female housing, a protrusion is provided in the hood portion, and when the hood portion and the female housing reach a normal fitting state, the pressing portion is inserted into the female housing by the protrusion. A method of pressing is also conceivable. However, according to such a configuration, it is necessary to provide a punching hole for providing a protrusion in the hood portion.
However, according to the above configuration, the pressing portion can be displaced toward the inside of the female housing simply by providing the pressing portion with the protrusion. That is, the pressing portion can be displaced toward the inside of the female housing without changing the configuration of the male housing.

The pressing portion is a semi-insertion detection surface that restricts insertion of the female housing into the hood portion by abutting against an opening edge of the hood portion when the female terminal is in a semi-insertion state with respect to the female housing. It is good also as a structure which has.
According to such a configuration, since the hood portion of the male housing and the female housing cannot be fitted, it can be detected that the female terminal is half-inserted. In other words, the female terminal and male terminal can be packed together, and a lance that locks the female terminal from the rear side can also be used as a half-insertion detection mechanism of the female terminal. Thereby, compared with the case where three functions are provided separately, the structure of the connector can be greatly simplified.

  According to the present invention, fine sliding wear between terminals can be suppressed.

Sectional drawing which shows the state before the fitting of the female connector and male connector in Embodiment 1 Sectional drawing which shows the state after the fitting of a female connector and a male connector Sectional drawing which shows the state by which the to-be-latched part of the female terminal was latched from back by the lance of the female housing Sectional drawing which shows the state before inserting a female terminal in a female housing Perspective cross-sectional view of a female terminal connected to an electric wire Sectional drawing which shows the state after the fitting of the female connector and male connector in Embodiment 2

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the connector of the present embodiment includes a male connector 50 connected to the end of the electric wire W and a female connector 30 fitted to the male connector 50. In the following description, the vertical direction is based on the vertical direction in FIG. 1, the front-back direction is based on the horizontal direction in FIG. 1, and the side on which the female connector 30 and the male connector 50 are fitted together is the front side. Will be described.

As shown in FIG. 1, the male connector 50 includes a male housing 51 made of synthetic resin and a male terminal 60 accommodated in the male housing 51.
The male terminal 60 is formed by pressing a conductive metal plate, and has a wide tab-like male side connection portion 61 extending in the front-rear direction, and a box-like shape connected to the rear side of the male side connection portion 61. The main body 62 and the male electric wire connecting part 63 connected to the rear of the main body 62 are provided.
The male-side electric wire connecting portion 63 includes a wire barrel portion 64 that is crimped to the core wire exposed at the end of the electric wire W, and an insulation barrel portion 65 that is crimped to the insulating coating of the electric wire W. The male terminal 60 is electrically connected to the electric wire W by crimping the wire barrel portion 64 and the insulation barrel portion 65 to the electric wire W.

The male housing 51 has a shape that is long in the front-rear direction, and includes a terminal accommodating portion 52 that accommodates the male terminal 60, and a hood portion 53 that is provided in front of the terminal accommodating portion 52. .
A male side cavity 54 penetrating in the front-rear direction is provided inside the terminal accommodating portion 52, and the male terminal 60 is accommodated from the rear side in the male side cavity 54. In the male cavity 54, a male lance 55 for locking the male terminal 60 accommodated in the male cavity 54 from the rear is provided. The male lance 55 has a form extending in a cantilever manner obliquely upward from the lower inner wall of the male cavity 54 and is elastically deformable downward. When the male terminal 60 is inserted into the male cavity 54 from behind, the male lance 55 interferes with the main body 62 of the male terminal 60 and elastically deforms downward. Further, when the male terminal 60 is inserted to the proper position, the interference state between the male lance 55 and the main body portion 62 is released, and the male lance 55 is elastically restored, so that the male lance 55 is attached to the main body portion 62. It fits into a lance hole 66 provided at the lower end and locks the main body 62 from the rear.

  Since the male lance 55 is cantilevered, the male lance 55 is elastically deformed so that the front end of the male lance 55 is displaced obliquely forward with the base end of the male lance 55 as a fulcrum. Therefore, in the state where the male terminal 60 is inserted to the proper position and the male lance 55 is elastically restored, the male side lance 55 has a male side lance 55 between the front inner wall and the male lance 55 as shown in FIG. A clearance C is generated as much as the lance 55 is displaced obliquely forward.

  The hood part 53 opens in a substantially rectangular shape toward the front, and the male side connection part 61 of the male terminal 60 accommodated in the terminal accommodating part 52 projects forward from the rear wall 53A of the hood part 53. .

The female connector 30 includes a female terminal 20 connected to the end of the electric wire W and a female housing 31 in which the female terminal 20 is accommodated.
The female terminal 20 is formed by pressing a conductive metal plate material, and as shown in FIGS. 4 and 5, the connection cylinder portion 21 into which the male side connection portion 61 of the male terminal 60 is inserted, The electric wire connecting part 22 is provided to be connected to the rear of the connecting cylinder part 21.

The connecting tube portion 21 has a substantially rectangular tube shape that is wide in the horizontal direction, and an elastic contact piece 23 that is folded back from the upper edge of the front end is provided inside the connecting tube portion 21. The elastic contact piece 23 can be elastically deformed upward, and a contact portion 23 </ b> A that bulges downward is provided on the lower surface of the elastic contact piece 23. When the male side connecting portion 61 is inserted into the connecting tube portion 21, as shown in FIG. 2, the bottom plate 21A of the connecting tube portion 21 and the elastic contact piece 23 elastically move the male side connecting portion 61 in the vertical direction. Thus, the male side connecting portion 61 and the elastic contact piece 23 are electrically connected to each other when the contact portion 23A contacts the male side connecting portion 61.
On both sides in the width direction at the lower edge of the rear end of the connecting tube portion 21, as shown in FIGS. 3 to 5, a pair locked from behind by a lance (an example of a “pressing portion”) 34 of a female housing 31 described later. The to-be-latched part 26 is formed. These locked portions 26 are formed in a tapered shape that inclines from the inside toward the outside as it goes forward.

  The electric wire connection portion 22 includes a wire barrel portion 24 that is crimped to the core wire exposed at the end of the electric wire W, and an insulation barrel portion 25 that is crimped to the insulating coating of the electric wire W. The female terminal 20 is electrically connected to the electric wire W by the portion 24 and the insulation barrel portion 25 being crimped to the electric wire W.

  As shown in FIGS. 1 and 4, the female housing 31 has a long block shape in the front-rear direction, and is fitted and fitted into the hood portion 53 of the male housing 51. Although not shown, the female housing 31 and the male housing 51 are locked in a fitted state by a lock mechanism provided across the housings 31 and 51.

A cavity 32 that opens in the front-rear direction is formed inside the female housing 31, and the female terminal 20 is received from the rear end opening of the cavity 32. Further, the front end opening of the cavity 32 is a terminal insertion hole 33 provided in the front wall 31A of the female housing 31, and when the female housing 31 is fitted into the hood portion 53, as shown in FIG. The male connection portion 61 of the terminal 60 is inserted into the connection tube portion 21 of the female terminal 20 through the terminal insertion hole 33.
Further, as shown in FIGS. 1 to 4, the female housing 31 is formed with a lance (an example of a “pressing portion”) 34 for locking the female terminal 20 accommodated in the cavity 32 from the rear. The lance 34 is formed in a cantilever shape extending in the front-rear direction by providing a slit 35 in the bottom wall 31B of the female housing 31, and a front end portion of the lance 34 is a free end. The lance 34 can be elastically deformed in the vertical direction, and is located at a substantially central portion in the front-rear direction of the female housing 31.

  A terminal locking portion 36 that protrudes upward is provided at the front upper end of the lance 34. The terminal locking portion 36 is formed in a mountain shape having a vertex at a substantially central portion in the front-rear direction. For this reason, the front surface of the terminal locking portion 36 has a tapered shape that is inclined downward (as viewed from the inside to the outside of the female housing 31) toward the front side, and the rear surface of the terminal locking portion 36 is directed to the rear side. The taper is inclined toward the lower side. When the female terminal 20 is inserted into the cavity 32 from the rear, the connecting tube portion 21 of the female terminal 20 comes into contact with the rear surface of the terminal locking portion 36 from the rear, and the connecting tube portion 21 is connected to the terminal locking portion 36. The lance 34 is elastically deformed downward. When the female terminal 20 reaches the proper position, the interference state between the connecting tube portion 21 and the terminal locking portion 36 is released, and the lance 34 is elastically restored, and a pair of lower ends of the connecting tube portion 21 at the rear edge of the connecting tube portion 21 is restored. The locked portion 26 is locked from the rear by the terminal locking portion 36, and the female terminal 20 is prevented from coming off in the female housing 31.

Further, the front end surface of the lance 34 is a half-insertion detection surface 37 that is substantially perpendicular to the outer bottom surface of the bottom wall 31 </ b> B of the female housing 31.
When the female terminal 20 is in a half-inserted state in which the female terminal 20 is disposed behind the normal position in the cavity 32, the terminal insertion portion 36 and the connecting tube portion 21 interfere with each other to detect the lance 34. Is set to be in a state of projecting downward by being elastically deformed downward and intersecting the outer bottom surface of the bottom wall 31B of the female housing 31 substantially orthogonally. Therefore, when the female terminal 31 is to be inserted into the hood portion 53 with the female terminal 20 in the half-inserted state, the half-insertion detection surface 37 comes into contact with the opening edge of the hood portion 53, and the female housing 31 into the hood portion 53. Insertion is regulated. That is, the female connector 30 in which the female terminal 20 is half inserted can be restricted from being fitted into the male connector 50.

  Now, at the front lower end of the lance 34 (below the position where the terminal locking portion 36 is provided), as shown in FIG. 1, the bottom wall 31B of the female housing 31 is in a natural state where the lance 34 is not elastically deformed. A projecting portion 38 projecting downward from the outer bottom surface is provided. The protruding portion 38 is formed in a mountain shape having a vertex at a substantially central portion in the front-rear direction and inclined in the front-rear direction. When the female housing 31 is fitted in the hood portion 53, as shown in FIG. The lance 34 is pressed upward by the lower inner wall of the hood 53 and elastically deforms the lance 34 upward, which is the inner side of the female housing 31.

On the other hand, in the substantially central portion in the width direction at the lower edge of the rear end of the connecting tube portion 21, when the lance 34 is elastically deformed upward, it is pressed obliquely forward and upward by the pressing surface 39 which is the front surface of the terminal locking portion 36. An extending piece 27 is provided.
The extending piece 27 is bent and straightly extended from the lower edge of the rear end of the connecting cylinder portion 21 toward the upper front obliquely, and is positioned at the rear end portion of the extending piece 27. The bent portion is a pressed portion 28 that is pressed by the pressing surface 39.

  Further, the front end portion of the extending piece 27 has a front side (on the male side connecting portion 61 of the male terminal 60 inserted into the connecting tube portion 21 when the extending piece 27 is pressed by the pressing surface 39 of the lance 34 ( The pushing portion 29 is pushed out toward the male connector 50 side and pushes the male terminal 60 against the male lance 55 of the male housing 51.

  Specifically, the pushing portion 29 is a height position between the height position of the bottom plate 21A in the connection cylinder portion 21 and the height position of the contact portion 23A in the elastic contact piece 23 in a natural state where the lance 34 is not elastically deformed. It is arranged in. Then, when the female housing 31 is inserted into the hood portion 53 and the lower inner wall of the hood portion 53 interferes with the protruding portion 38 of the lance 34, the lance 34 is elastically deformed upward, whereby the extending piece 27 is moved to the lance portion. It is pressed by the pressing surface 39 of 34 and is elastically displaced slightly diagonally forward and upward. Then, when the female housing 31 and the hood portion 53 of the male housing 51 are properly fitted, as shown in FIG. 2, the lower surface of the pushing portion 29 of the male side connecting portion 61 that has entered the connecting tube portion 21. It abuts on the tip and elastically pushes the male side connecting portion 61 toward the male housing 51 side. Then, the male terminal 60 in the male housing 51 moves rearward to close the clearance C between the male terminal 60 and the male lance 55, and the male terminal 60 is pressed against the male lance 55. .

That is, when both the housings 31 and 51 are in the proper fitting state, the male side connection portion 61 of the male terminal 60 and the extending piece 27 of the female terminal 20 are in contact with each other in the front-rear direction, and the male terminal is in contact with the front-rear direction. 60 and the female terminal 20 are sandwiched between the male lance 55 of the male housing 51 and the lance 34 of the female housing 31 in the front-rear direction.
When the amount of displacement of the extended piece 27 elastically deformed toward the front side is larger than the dimension of the clearance C between the front inner wall of the lance hole 66 and the male lance 55, the extended piece 27 is inclined. By elastically deforming upward and backward, the difference between the displacement amount and the clearance C can be absorbed.

The connector of the present embodiment is configured as described above, and its operation will be described subsequently.
First, the assembly procedure of the female connector 30 will be described.
As shown in FIG. 4, the female terminal 20 connected to the electric wire W and the female housing 31 are prepared, and the female terminal 20 is inserted into the cavity 32 of the female housing 31 from the rear.
When about half of the female terminal 20 is inserted into the cavity 32, the lower end on the front side of the connecting tube portion 21 abuts against the terminal locking portion 36 of the lance 34 from the rear, so that the connecting tube portion 21 becomes the terminal locking portion 36. It rides and elastically deforms the lance 34 downward. When the female terminal 20 reaches the proper position, the contact state between the connecting tube portion 21 and the terminal locking portion 36 is released, and the lance 34 is elastically restored, so that the pair of engaged portions of the connecting tube portion 21 are released. The stop portion 26 is locked from behind by the terminal locking portion 36. Thereby, the female terminal 20 is prevented from coming off in the female housing 31, and the female connector 30 is completed.

Next, a procedure for assembling the male connector 50 will be described.
A male housing 51 and a male terminal 60 connected to the electric wire W are prepared, and the male terminal 60 is inserted into the male side cavity 54 from behind. Then, in the insertion process, the main body 62 of the male terminal 60 abuts on the male lance 55 from behind and rides on the male lance 55, and the male lance 55 is elastically deformed so as to be displaced obliquely forward. When the male terminal 60 is inserted to the proper position, the interference state between the male lance 55 and the main body 62 is released, and the male lance 55 is elastically restored, so that the male lance 55 is restored to the main body 62. It fits into the lance hole 66 and is locked from behind. Thereby, the male terminal 60 is prevented from being detached from the male housing 51, and the male connector 50 is completed. Further, at this stage, a clearance C is provided between the male lance 55 and the front inner wall of the lance hole 66 by the amount that the male lance 55 is displaced obliquely forward.

When the female connector 30 and the male connector 50 are completed, as shown in FIG. 1, both the connectors 30 and 50 are arranged facing each other, and the female connector 30 is inserted into the hood portion 53 of the male housing 51 and fitted. Let
Here, when about half of the female housing 31 is inserted into the hood portion 53, the protruding portion 38 of the lance 34 of the female housing 31 comes into contact with the opening edge of the hood portion 53 from behind and rides up, and below the hood portion 53. The projecting portion 38 is pressed upward by the side inner wall, and the lance 34 is elastically deformed upward, which is the inner side of the female housing 31.

  However, if the female terminal 20 is in a half-inserted state with respect to the cavity 32, the contact state between the terminal locking portion 36 and the connecting tube portion 21 is not released, and the lance 34 is elastically deformed downward. As it is, the half-insertion detection surface 37 protrudes downward. That is, when the female housing 31 is inserted into the hood portion 53, the half-insertion detection surface 37 abuts on the opening edge of the hood portion 53, and the insertion of the female connector 30 in which the female terminal 20 is in the half-inserted state can be restricted. . That is, by using the lance 34 as a half-insertion detection mechanism, it is possible to prevent the female connector 30 with the female terminal 20 in the half-inserted state from being fitted to the male connector 50.

  Further, when the female housing 31 is fitted to the hood portion 53 and the lance 34 is elastically deformed upward, the pressing surface 39 of the terminal locking portion 36 causes the pressed portion 28 of the extending piece 27 to move obliquely downward and rearward. The extension piece 27 is slightly elastically deformed diagonally forward and upward.

In this state, when the male housing 51 and the female housing 31 are further fitted to each other, and both the housings 31 and 51 reach the proper fitting state, as shown in FIG. Enters the connecting tube portion 21 of the female terminal 20 through the terminal insertion hole 33 of the female housing 31, and the elastic contact piece 23 of the connecting tube portion 21 and the male side connecting portion 61 are electrically connected.
At the same time, the pushing portion 29 of the extending piece 27 comes into contact with the tip of the male side connecting portion 61, and the pushing portion 29 elastically presses the male side connecting portion 61 toward the male housing 51 side. Then, the male terminal 60 in the male housing 51 moves rearward, the clearance C between the front inner wall of the lance hole 66 in the main body 62 and the male lance 55 is filled, and the male terminal 60 is connected to the male lance 55. Pressed against.

  As a result, the male terminal 60 and the female terminal 20 that have come into contact with each other in the front-rear direction are sandwiched in the front-rear direction by the male-side lance 55 of the male housing 51 and the lance 34 of the female housing 31. 60 and the female terminal 20 can be prevented from rattling in the front-rear direction. As a result, it is possible to suppress the occurrence of fine sliding wear between the elastic contact piece 23 of the connection cylinder portion 21 and the male side connection portion 61, and to suppress an increase in contact resistance between the terminals 20 and 60.

  Further, according to the present embodiment, the front end portion of the extending piece 27 is the pushing portion 29 that presses the male side connecting portion 61, and the rear end portion of the extending piece 27 is pressed against the pressing surface 39 of the lance 34. Since the pressing portion 28 is used, the pressing force pressed by the lance 34 can be transmitted to the male side connecting portion 61 only through the extending piece 27. That is, for example, the pressing force can be reliably transmitted to the male side connecting portion 61 as compared with the case where the extruded portion and the pressed portion are formed separately above and below the connecting tube portion, and the connecting tube portion 21 The structure can be simplified.

Further, in the process of inserting the female housing 31 into the hood portion 53, the pressing surface 39 of the lance 34 that presses the pressed portion 28 of the extending piece 27 is formed in a tapered shape. 21 can be smoothly pushed out toward the male housing 51 side. That is, the female housing 31 can be smoothly inserted into the hood portion 53, and the workability and operational feeling are excellent.
Moreover, since the bent part located in the rear-end part of the extension piece 27 is made into the to-be-pressed part 28, compared with the case where a to-be-pressed part is formed as a corner | angular part, for example, the pressing surface 39 is a to-be-pressed part. It can suppress that it is cut | disconnected by 28 and is damaged.

  As described above, in the present embodiment, the male terminal 60 and the female terminal 20 that are in contact with each other in the front-rear direction can be connected to the male side of the male housing 51 only by fitting the female housing 31 and the hood portion 53 of the male housing 51. The lance 55 and the lance 34 of the female housing 31 can be held in the front-rear direction. Thereby, it is possible to prevent the male terminal 60 and the female terminal 20 from shaking in the front-rear direction in both the housings 31, 51, and finely slide between the elastic contact piece 23 of the connection tube portion 21 and the male-side connection portion 61. The occurrence of dynamic wear can be suppressed.

  In addition, the half-insertion state of the female terminal 20 can be detected, and the lance 34 that locks the female terminal 20 from the rear side can also be used as a pressing portion that presses the extension piece 27 of the female terminal 20. The structure of the female connector 30 can be greatly simplified as compared with the case where the members are provided individually for each time. Thereby, it can suppress that the male connector 50 enlarges with the female connector 30. FIG.

  By the way, for example, as a means for displacing the lance of the female housing upward, a protrusion is provided in the hood portion, and when the hood portion and the female housing reach a proper fitting state, the lance is moved upward by the protrusion. A method of elastic deformation is also conceivable. However, according to such a configuration, it is necessary to provide a die-cutting hole for providing a protrusion on the hood portion. However, according to the present embodiment, the lance 34 can be displaced upward only by providing the protruding portion 38 pressed by the lower inner wall of the hood portion 53 at the front lower end portion of the lance 34. That is, the lance 34 can be elastically deformed upward without changing the configuration of the male connector 50.

  In addition, for example, a method of locking the female terminal into the female housing by locking only the pressed portion that is the rear end portion of the extending piece from the rear side by the terminal locking portion is conceivable. When the female terminal is strongly pulled rearward by being pulled or the like, the extended piece may be excessively bent toward the front side, and the extended piece may be damaged. However, according to the present embodiment, when the female terminal 20 is pulled strongly to the rear side, the pair of locked portions 26 provided on both sides of the extension piece 27 are engaged from the rear side by the terminal locking portions 36. Therefore, the female terminal 20 can be reliably prevented from coming off without damaging the extending piece 27.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG.
The female connector 130 of the second embodiment is obtained by changing the shape of the pushing portion 29 of the extending piece 27 in the first embodiment, and the configuration, operation, and effect common to the first embodiment are duplicated. Description is omitted. The same reference numerals are used for the same configurations as those in the first embodiment.

The extruding portion 129 in the extending piece 127 of the second embodiment is formed by bending the front end portion of the extending piece 127 upward, and the front surface of the extruding portion 129 is a front and rear direction in which the male terminal 60 is inserted. It is in a state of intersecting the direction substantially orthogonally.
That is, even if the distal end of the male side connecting portion 61 is slightly displaced in the vertical direction in the connecting cylinder portion 21, the male side connecting portion 61 and the pushing portion 129 are easily brought into contact with each other, and the pushing portion 129 makes the male side. The connection part 61 can be pushed out firmly.

<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 locking function for locking the female terminal 20 from the rear, the pressing function for pressing the female terminal 20 forward, and the half-insertion detecting function for detecting half-insertion of the female terminal 20 are provided. However, the present invention is not limited to such a configuration. For example, a half-insertion detection unit may be configured separately from the lance, and a pressing unit may be configured separately from the lance. May be.
(2) In the above embodiment, the front end portion of the extending piece 27 is configured as the extruded portion 29, and the rear end portion of the extending piece 27 is configured as the pressed portion 28. However, the present invention is limited to such a mode. For example, an extruding part is formed on the ceiling plate side of the connecting cylinder part, and a pressed part is formed on the bottom plate side of the connecting cylinder part. You may form in.
(3) In the above embodiment, the lance 34 is provided on the bottom wall 31B of the female housing 31. However, the present invention is not limited to such an embodiment. For example, the side wall or ceiling wall of the female housing is used. Alternatively, a lance may be provided.
(4) In the above embodiment, the pair of locked portions 26 are provided on both sides of the extension piece 27. However, the present invention is not limited to such an embodiment. For example, the extension piece It may be configured that the locked portion is formed only on one side of the.
(5) In the first embodiment, the male side connecting portion 61 is brought into contact with the lower surface of the extruded portion 29. However, the present invention is not limited to such an embodiment. You may comprise in the form extended in the front-back direction, and may be made the structure which a male side connection part is faced | matched and extruded to the front-end surface (front-end surface of an extension piece) of an extrusion part.

20: Female terminal 21: Connection tube portion 26: Locked portion 27, 127: Extension piece 28: Pressed portion 29, 129: Extruding portion 31: Female housing 34: Lance (pressing portion)
37: Half-insertion detection surface 38: Protruding part 39: Pressing surface 51: Male housing 53: Hood part 60: Male terminal 61: Male side connection part

Claims (8)

A male housing having a hood portion;
A female housing fitted into the hood,
A connector provided with a female terminal that is accommodated in the female housing from the rear side and connected to the male terminal accommodated in the male housing when the female housing is fitted in the hood portion;
The female terminal has a connecting tube portion to which a male side connecting portion provided on the male terminal is inserted and connected,
When the female housing is fitted into the hood portion, the outer wall of the female housing is displaced toward the inside of the female housing by being pressed against the inner wall of the hood portion, and the female terminal is moved forward. A pressing part is provided to press toward the
The female terminal is provided with a push-out portion that pushes the male-side connection portion inserted into the connection cylinder portion forward and presses the male terminal against the male housing when pressed by the push portion. connector.   In the process of inserting the female terminal into the female housing, the pressing portion elastically deforms outward by interfering with the female terminal, and the female terminal reaches a proper position in the female housing. The connector according to claim 1, wherein the connector is a lance that locks the female terminal from the rear side when the interference state with the female terminal is released and elastically restored. The female terminal has an extending piece bent from the rear end edge of the connecting tube portion toward the front side,
The connector according to claim 1, wherein a rear end portion of the extending piece is a pressed portion pressed by the pressing portion, and a front end portion of the extending piece is the pushing portion.   The connector according to claim 3, wherein the push-out portion is formed by bending the extension piece in a direction intersecting with the insertion direction of the male side connection portion.   In the connecting cylinder portion, a side portion of the extending piece is formed with a locked portion that is locked from the rear side by the pressing portion when the female terminal is pulled rearward. The connector according to claim 3 or 4.   6. The taper-shaped pressing surface which inclines toward the front is formed in the position which contact | abuts with the said female terminal of the said press part as it goes outside from the inner side of the said female housing. The connector according to one item. The pressing portion is provided with a protruding portion that protrudes outward from the outer surface of the female housing,
7. The device according to claim 1, wherein when the female housing is fitted into the hood portion, the projecting portion is pressed against an inner wall of the hood portion, whereby the pressing portion is displaced toward the inside of the female housing. A connector according to claim 1.   The pressing portion is a semi-insertion detection surface that restricts insertion of the female housing into the hood portion by abutting against an opening edge of the hood portion when the female terminal is in a semi-insertion state with respect to the female housing. The connector according to any one of claims 1 to 7, comprising:

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