JP2014049327A - Female terminal, and fixing structure of female terminal in connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain backlash of a female terminal when assembled in a connector housing.SOLUTION: A leaf spring 20 in a box part 11 of a female terminal 10 is fixed to an upper wall 11a of the box part 11 on its front end 21, and is formed as a cantilevered spring extending backward on its free end. A curve part 22 is provided on a free end side of the cantilevered spring, and a male tab terminal is inserted in a rear end 22c of the curve part. When the curve part is pressed by the male tab terminal and flexed upward, the leaf spring is engaged with a locking groove 63 of a beak 62 of a lance 60 engaged with an engagement hole 42 so as to function as a both-end support spring. The leaf spring is provided with a locking projection piece 23 for applying a backward force to the beak of the lance by extending the curve part backward as the curve part is further compressed in a flat shape under a both-end support spring state, and displacing the box part forward by its reaction force.

Description

  The present invention relates to a female terminal having a rectangular tube-like box part into which a male tab terminal is inserted at a front part, and a female terminal fixing structure in a connector in which the female terminal is housed and fixed in a terminal housing chamber of a connector housing. Is.

  As a female terminal for a connector, a rectangular tube-like box part into which a male tab terminal is inserted is provided at the front part, and a leaf spring for sandwiching the male tab terminal with contact pressure is formed inside the box part. There is something.

FIG. 8 is a sectional view showing a state in which the conventional female terminal described in Patent Document 1 is housed in a connector housing.
The female terminal 110 has a rectangular box-shaped box portion 111 at the front, and is fixed inside the terminal accommodating chamber 151 by being inserted into the terminal accommodating chamber 151 of the connector housing 150 from the rear.

  A leaf spring 120 integrally formed on the upper wall of the box portion 111 is provided as a cantilever spring inside the box portion 111, and the lower wall of the box portion 111 is opposed to the leaf spring 120. A tab receiving portion 130 is provided so that a male tab terminal (not shown) can be sandwiched between the leaf spring 120. In this case, the leaf spring 120 is formed in a downwardly convex curved shape so as to easily come into contact with the male tab terminal.

  In addition, a flexible lance 160 formed on the bottom wall of the terminal accommodating chamber 151 is formed on the lower surface of the lower wall of the box portion 111 when the female terminal 110 is inserted into the terminal accommodating chamber 151 of the connector housing 150 from behind. A locking projection 140 that prevents the female terminal 110 from coming out backward is provided by engaging with the beak (locking portion) 162. The flexible lance 160 is formed in a cantilever shape in which a rear end 161 is fixed to a bottom wall of the terminal accommodating chamber 151 and a free end extends forward. Further, the locking projection 140 of the female terminal 110 is provided with a rearward locking surface 141 that engages with the front end of the beak 162 of the lance 160.

  When the female terminal 110 is incorporated into the connector housing 150 to form a connector, the female terminal 110 is inserted into the terminal accommodating chamber 151 from the rear with the box portion 111 facing the front side. Then, the locking protrusion 140 provided on the lower surface of the box portion 111 pushes down the flexible lance 160 provided on the bottom wall of the terminal accommodating chamber 151. Further, when the female terminal 110 is inserted into the terminal accommodating chamber 151 until the locking projection 140 passes through the lance 160, the lance 160 returns from bending, and the beak 162 of the lance 160 engages with the locking projection 140 of the female terminal 110. Accordingly, the female terminal 110 is fixed inside the terminal accommodating chamber 151 to complete the connector.

  When this connector is mated with the mating connector, the male tab terminal of the mating connector is inserted into the box portion 111 of the female terminal 110 and enters between the leaf spring 120 and the tab receiving portion 130 while bending the leaf spring 120. Thus, the male tab terminal is sandwiched between the leaf spring 120 and the tab receiving portion 130, and the male tab terminal and the female terminal 110 are electrically connected.

JP 2004-22303 A

  By the way, the cantilever lance 160 to which the rear end 161 is fixed bends with the rear end 161 as a fulcrum when the beak 162 engages with the locking projection 140 of the female terminal 110. It is necessary to prevent the movement trajectory 162 from interfering with the locking projection 140. Therefore, a clearance T in the front-rear direction must be ensured between the beak 162 and the locking protrusion 140.

  However, if this gap T is left, the female terminal 110 will rattle back and forth in the connector housing 150 with the female terminal 110 assembled in the connector housing 150, and the male tab terminal and the female terminal 110 are fitted. There is a risk of contact wear when combined.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a female terminal capable of suppressing rattling of a terminal when assembled in a connector housing, and the female terminal as a terminal of the connector housing. An object of the present invention is to provide a female terminal fixing structure in a connector housed and fixed in a storage chamber.

In order to achieve the above-described object, the female terminal according to the present invention is characterized by the following (1).
(1) The front portion has a cylindrical box portion that secures an insertion space for the male tab terminal between the upper wall and the lower wall, and accommodates the terminal of the connector housing with the box portion facing forward. When inserted into the chamber from the rear, a locking hole formed in the upper wall is formed in the locking portion of the lance using the bending of the flexible lance provided on the ceiling wall of the terminal accommodating chamber. By engaging, it is fixed to the inside of the terminal accommodating chamber in a state in which backward movement is prevented, and when the male tab terminal is inserted into the box portion from the front in that state, it is provided on the upper wall. A female terminal electrically connected to the male tab terminal with the male tab terminal sandwiched between a plate spring and a tab receiving portion provided on the lower wall,
The leaf spring has a front end fixed to the upper wall and a free end extending backward, and when the male tab terminal is inserted, the male tab terminal is pushed by the male tab terminal and bent upward, and the male tab terminal is pressed downward by the reaction force. Formed as a cantilever spring
The leaf spring is provided on the free end side of the cantilever spring with a curved portion extending backward while being curved downward and convex in order to contact the inserted male tab terminal,
When the male tab terminal is inserted into the rear end of the bending portion, the locking portion of the lance engaged with the locking hole is pushed by the male tab terminal and the bending portion bends upward. The leaf spring functions as a both-ends support spring by engaging with the spring, and the bending portion extends rearward as the bending portion is further compressed into a flat shape in the state of the both-end support spring. A locking protrusion is provided that exerts a backward force on the locking portion and displaces the box portion forward by the reaction force.
about.

  According to the female terminal configured as described in (1) above, the lance locking portion provided on the ceiling wall of the terminal housing chamber is inserted into the terminal housing chamber of the connector housing from the rear with the box portion facing forward. Can be engaged with a locking hole formed in the upper wall of the box portion, thereby being fixed inside the terminal accommodating chamber. In this state, the male tab terminal can be sandwiched between the leaf spring provided on the upper wall of the box portion and the tab receiving portion provided on the lower wall by inserting the male tab terminal from the front. At that time, the leaf spring is bent upward to exert a reaction force on the male tab terminal, and generates a contact pressure between the female terminal and the male tab terminal. Further, since the leaf spring bends upward, the engagement protrusion provided at the rear end of the curved portion of the leaf spring engages with the engagement portion of the lance that fits into the engagement hole in the upper wall of the box portion. The leaf spring is compressed and deformed as a both-end support spring, and a stronger contact pressure is generated. In addition, as the bending portion of the leaf spring further compresses and deforms, the bending portion extends rearward, and the force due to the extension is applied to the locking portion of the lance, and the female terminal is moved forward by the reaction force. Can be displaced. Therefore, the front end of the female terminal can be pressed toward the front end wall of the terminal accommodating chamber by the forward displacement of the female terminal, and the backlash in the front-rear direction of the female terminal and the connector housing can be reduced. As a result, the wear of the contact between the female terminal and the male tab terminal can be reduced.

In order to achieve the above-described object, the female terminal fixing structure in the connector according to the present invention is characterized by the following (2) or (3).
(2) It has a cylindrical box part which secured the insertion space for the male tab terminal between the upper wall and the lower wall at the front part, and the upper wall and the lower wall respectively from the front with respect to the box part When the male tab terminal is inserted, the female terminal provided with a leaf spring and a tab receiving portion for electrically connecting the male tab terminal and the female terminal by sandwiching the male tab terminal is connected to the box portion. By inserting from the rear into the terminal housing chamber of the connector housing in a posture directed toward the front, the locking portion of the flexible lance provided on the ceiling wall of the terminal housing chamber is utilized by utilizing the bending of the lance. The female terminal is engaged with a locking hole formed in the upper wall, thereby fixing the female terminal to the inside of the terminal accommodating chamber in a state in which the female terminal is prevented from coming out backward, and the front end wall of the terminal accommodating chamber is used to fix the female terminal. For connectors that restrict forward movement The fixing structure of the contact terminal,
The leaf spring has a front end fixed to the upper wall and a free end extending backward, and when the male tab terminal is inserted, the male tab terminal is pushed by the male tab terminal and bent upward, and the male tab terminal is pressed downward by the reaction force. Formed as a cantilever spring
The leaf spring is provided on the free end side of the cantilever spring with a curved portion extending backward while being curved downward and convex in order to contact the inserted male tab terminal,
When the male tab terminal is inserted into the rear end of the bending portion, the locking portion of the lance engaged with the locking hole is pushed by the male tab terminal and the bending portion bends upward. The leaf spring functions as a both-ends support spring by engaging with the spring, and the bending portion extends rearward as the bending portion is further compressed into a flat shape in the state of the both-end support spring. A locking protrusion is provided that exerts a backward force on the locking portion and displaces the box portion forward by the reaction force.
about.
(3) In the fixing structure of the female terminal in the connector having the configuration of (2) above,
After the locking protrusion provided at the rear end of the curved portion of the leaf spring of the female terminal is in a posture orthogonal to the insertion direction of the female terminal when the male tab terminal is inserted and the leaf spring is deformed Formed as an upwardly projecting piece with a face wall,
The locking portion of the lance is provided with a notch for engaging the locking protrusion, and the rear wall of the locking protrusion is in contact with the notch so that the notch faces backward from the rear wall of the locking protrusion. A locking wall facing the front that receives the force of
about.

According to the fixing structure of the female terminal in the connector having the configuration (2), the male tab terminal is inserted into the female terminal box from the front in a state where the female terminal is fixed inside the terminal housing chamber of the connector housing by the lance. Thus, the male tab terminal can be sandwiched between the leaf spring provided on the upper wall of the box portion and the tab receiving portion provided on the lower wall, and the contact pressure due to the bending reaction force of the leaf spring is reduced between the female terminal and the male tab terminal. Can act on contacts. Further, since the leaf spring bends upward, the engagement protrusion provided at the rear end of the curved portion of the leaf spring engages with the engagement portion of the lance that fits into the engagement hole in the upper wall of the box portion. The leaf spring is compressed and deformed as a both-end support spring, and a stronger contact pressure can be applied to the contact. In addition, as the bending portion of the leaf spring is further compressed and deformed, the bending portion extends rearward, and by exerting a force due to the extension on the locking portion of the lance, the female terminal is caused by the reaction force. It can be displaced forward. Therefore, the front end of the female terminal can be pressed toward the front end wall of the terminal accommodating chamber by the forward displacement of the female terminal, and the backlash in the front-rear direction of the female terminal and the connector housing can be reduced. As a result, the wear of the contact between the female terminal and the male tab terminal can be reduced.
According to the fixing structure of the female terminal in the connector having the configuration of (3) above, the rear wall of the locking protrusion of the leaf spring and the locking wall of the lance notch are arranged in a plane perpendicular to the insertion direction of the female terminal. Since it can be contacted, the force from the locking protrusion can be reliably received by the locking portion of the lance, and the reaction force can be effectively used as a force to displace the female terminal forward. .

  According to the present invention, when the male tab terminal is fitted, the female terminal can be displaced forward to reduce backlash with respect to the connector housing, and wear of the contact can be reduced.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is an external perspective view of a female terminal according to an embodiment of the present invention. FIG. 2 is a perspective sectional view showing the internal structure of the box portion of the female terminal according to the embodiment of the present invention. FIG. 3 is a side sectional view showing an internal structure of the box portion of the female terminal according to the embodiment of the present invention. FIG. 4 is a side sectional view showing a state of bending of the leaf spring when the male tab terminal is inserted into the box portion of the female terminal before being accommodated in the connector housing. FIG. 5 is a perspective view showing a configuration of a terminal housing chamber of a connector housing for housing and fixing a female terminal according to an embodiment of the present invention, and an enlarged view of a main part thereof. FIG. 6 is a side sectional view showing a state in which the female terminal according to the embodiment of the present invention is housed and fixed in the terminal housing chamber of the connector housing. FIG. 7 is a side cross-sectional view showing a state in which a male terminal is inserted into a box portion of the female terminal housed and fixed in the connector housing, and an enlarged view of a main part thereof. FIG. 8 is a side sectional view showing a conventional example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is an external perspective view of the female terminal of the embodiment, FIG. 2 is a perspective sectional view showing the internal structure of the box portion of the female terminal, FIG. 3 is a side sectional view showing the internal structure of the box portion of the female terminal, and FIG. FIG. 5 is a side sectional view showing a state of bending of the leaf spring when the male tab terminal is inserted into the box portion of the female terminal before being accommodated in the connector housing, and FIG. 5 is a view of the terminal accommodating chamber of the connector housing for accommodating and fixing the female terminal. FIG. 6 is a side sectional view showing a state in which the female terminal is housed and fixed in the terminal housing chamber of the connector housing, and FIG. 7 is a box portion of the female terminal housed and fixed in the connector housing. It is the sectional side view which shows the state which inserted the male terminal, and its principal part enlarged view.

  In this specification, the “upper” side and the “lower” side are defined as directions for convenience as shown in FIG. 1, but the upper side of the box part may be lower or side depending on the posture when the female terminal is used. Of course, it does not matter if the lower side of the box is facing up or sideways.

  As shown in FIG. 1, the female terminal 10 has a rectangular tube-shaped box portion 11 having an upper wall 11a, a lower wall 11b, and left and right side walls 11c and 11d at the front portion, and a rear portion of the electric wire. A conductor crimping portion 12 for crimping the conductor and a covering crimping portion 13 for crimping a portion of the wire with a coating on the rear side thereof are provided. Connecting portions 14 and 15 are connected between the box portion 11 and the conductor crimping portion 12 and between the conductor crimping portion 12 and the covering crimping portion 13, respectively.

  2 and 3, the female terminal 10 secures an insertion space for the male tab terminal 70 between the upper wall 11a and the lower wall 11b of the box portion 11, and as shown in FIG. By being inserted into the terminal accommodating chamber 51 of the housing 50 from the rear, it is fixed inside the terminal accommodating chamber 51. In this state, when the male tab terminal 70 is inserted into the box part 11 from the front as shown in FIG. 7, the leaf spring 20 provided on the upper wall 11a and the tab receiving part 30 provided on the lower wall 11b, By sandwiching the male tab terminal 70 therebetween, the male tab terminal 70 is electrically connected.

  As shown in FIGS. 2 to 4, the leaf spring 20 is basically a cantilever in which a U-shaped bent portion 21 at the front end (fixed end) is fixed to the front end of the upper wall 11a and the free end side extends rearward. It is formed as a spring. When the male tab terminal 70 is inserted, it is pushed by the male tab terminal 70 and bent upward, and the male tab terminal 70 is pressed downward by the reaction force.

  On the free end side of the leaf spring 20, a curved portion 22 that is curved downward and convexly is provided. That is, the lowermost end portion 22b that protrudes most downward is provided between the front end 22a that is continuous with the U-shaped bent portion 21 of the bent portion 22 and the rear end 22c that is a free end. In addition, a first contact Sa that is in press contact with the upper surface 71 of the male tab terminal 70 is provided on the lower surface of the lowermost end portion 22b.

  Further, a locking protrusion 23 that protrudes upward is provided at the rear end 22 c of the curved portion 22 of the leaf spring 20. The locking protrusion 23 is a portion that engages with an engaging groove 63 of a beak 62 of the lance 60 as will be described later. Furthermore, a rectangular locking hole 42 is formed at a position facing the locking protrusion 23 on the upper wall 11a of the box portion 11.

  Further, on the upper surface of the tab receiving portion 30 facing the leaf spring 20, there are provided curved portions 31, 32 which are located on the front side and the rear side of the first contact Sa and are convex upward. A second contact Sb and a third contact Sc that contact the lower surface 72 of the male tab terminal 70 are provided at the uppermost end of 32.

  On the other hand, the connector housing 50 has a front end wall 56 having an insertion hole 57 for the male tab terminal 70 in front of the terminal accommodating chamber 51 as shown in FIG. The insertion hole 57 is provided to correspond to the male tab terminal insertion position of the female terminal 10 accommodated and fixed in the terminal accommodating chamber 51. The terminal accommodating chamber 51 is defined between the ceiling wall 52 and the bottom wall 53, and a flexible lance 60 that locks the female terminal 10 is formed on the ceiling wall 52.

  When the female terminal 10 is inserted into the terminal accommodating chamber 51 of the connector housing 50 from the rear, the lance 60 engages the beak (locking portion) 62 with the locking hole 42 of the female terminal 10, so that the female terminal The rear end 61 is fixed to the ceiling wall of the terminal accommodating chamber 151 and is formed in a cantilever shape with the free end extending forward. Further, an engaging groove (notch) 63 is provided on the lower surface of the beak 62 of the lance 60, and a locking wall 64 facing forward is provided at the rear end of the engaging groove 63.

Next, the locking protrusion 23 formed at the free end of the leaf spring 20 is extended in detail.
As shown in FIG. 4, the plate spring 20 is pushed by the male tab terminal 70 and bent upward when the male tab terminal 70 is inserted into the box portion 11. At that time, as shown in FIG. 7, the locking protrusions 23 are engaged with the engaging grooves of the beak 62 of the lance 60 engaged with the locking holes 42 of the box portion 11 as the curved portion 22 is deformed in the vertical direction. 63, the leaf spring 20 is caused to function as a both-end support spring.

  When the bending portion 22 is further compressed into a flat shape in the state of the both-end support springs, the bending portion 22 extends rearward accordingly. That is, the dimension of the bending portion 22 in the front-rear direction is A0 (see FIG. 6) before the insertion of the male tab terminal 70. Stretch to dimension A2 plus A1. When the curved portion 22 extends, the locking protrusion 23 exerts a backward force on the locking wall 64 of the beak 62 of the lance 60, and the reaction force causes the box portion 11 to move forward in the direction of the arrow B. Displace as follows. Due to the forward displacement of the female terminal 10, the gap H between the front end of the box portion 11 of the female terminal 10 and the front end wall 56 of the terminal accommodating chamber 51 shown in FIG.

  In this case, the rear wall of the locking protrusion 23 is in a posture orthogonal to the insertion direction of the female terminal 10 and abuts against the locking wall 64 of the beak 62 of the lance 60 to press the locking wall 64 rearward.

  When the female terminal 10 is accommodated in the connector housing 50, the box portion 11 of the female terminal 10 is inserted into the terminal accommodating chamber 51 from the rear as shown in FIG. Then, when the upper wall 11a of the box portion 11 hits the beak 62 of the lance 60, the lance 60 bends upward, and the female terminal 10 is inserted until the beak 62 and the locking hole 42 coincide with each other. After returning from the bending, the beak 62 fits into the locking hole 42, and the female terminal 10 is prevented from coming back backward.

  In this state, as shown in FIG. 6, there is a slight gap H between the front end of the female terminal 10 and the front end wall 56 of the terminal accommodating chamber 51. This gap H is ensured to avoid interference with the front end of the locking hole 42 when the beak 62 of the lance 60 returns from bending.

  Next, in this state, as shown in FIG. 7, the male tab terminal 70 is inserted from the front. Then, the male tab terminal 70 enters between the leaf spring 20 provided on the upper wall 11a of the box portion 11 and the tab receiving portion 30 provided on the lower wall 11b, and the male tab terminal 70 is connected to the leaf spring 20 and the tab receiving portion 30. It is sandwiched between. In that case, the leaf | plate spring 20 exerts reaction force on the male tab terminal 70 by bending upwards, and generates a contact pressure between the female terminal 10 and the male tab terminal 70.

  Further, as the leaf spring 20 bends upward, the locking protrusion 23 provided at the rear end of the curved portion 22 of the leaf spring 20 is fitted in the locking hole 42 of the upper wall 11 a of the box portion 11. The leaf spring 20 engages with the engagement groove 63 of the beak 62 of the lance 60, and the leaf spring 20 is compressed and deformed as a both-end support spring, thereby generating a stronger contact pressure. Moreover, as the bending portion 22 of the leaf spring 20 is further compressed and deformed, the bending portion 22 extends rearward, and the force due to the extension is exerted on the beak 62 of the lance 60, and the reaction force causes the female portion to be extended. The terminal 10 is displaced forward.

  Therefore, the front end of the female terminal 10 can be pressed toward the front end wall 56 of the terminal accommodating chamber 51 by the forward displacement of the female terminal 10, and the back-and-forth movement of the female terminal 10 and the connector housing 50 is reduced. As a result, wear of the contact between the female terminal 10 and the male tab terminal 70 can be reduced.

  Further, in the structure in which the female terminal 10 is fixed in this manner, the rear wall of the locking protrusion 23 of the leaf spring 20 is perpendicular to the insertion direction of the female terminal 10 on the locking wall 64 of the engagement groove 63 of the lance 60. Since the force from the locking projection 23 can be reliably received by the beak 62 of the lance 60, the reaction force is effective as a force for displacing the female terminal 10 forward. Can be used.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

10 female terminal 11 box part 11a upper wall 11b lower wall 20 leaf spring 21 U-shaped bent part (front end of leaf spring)
22 bending portion 22c rear end 23 locking protrusion 30 tab receiving portion 50 connector housing 51 terminal accommodating chamber 56 front end wall 60 lance 62 beak (locking portion)
63 Locking groove (notch)
64 Locking wall 70 Male tab terminal

Claims (3)

The front part has a cylindrical box part that secures an insertion space for the male tab terminal between the upper wall and the lower wall, and the box part is directed to the terminal housing chamber of the connector housing in a posture facing forward. When inserted from above, a locking hole formed in the upper wall engages with a locking portion of the lance using the bending of a flexible lance provided on the ceiling wall of the terminal accommodating chamber. Thus, when the male tab terminal is inserted into the box part from the front in the state, the leaf spring is provided on the upper wall. A female terminal that is electrically connected to the male tab terminal with the male tab terminal interposed between the tab receiving portion provided on the lower wall,
The leaf spring has a front end fixed to the upper wall and a free end extending backward, and when the male tab terminal is inserted, the male tab terminal is pushed by the male tab terminal and bent upward, and the male tab terminal is pressed downward by the reaction force. Formed as a cantilever spring
The leaf spring is provided on the free end side of the cantilever spring with a curved portion extending backward while being curved downward and convex in order to contact the inserted male tab terminal,
When the male tab terminal is inserted into the rear end of the bending portion, the locking portion of the lance engaged with the locking hole is pushed by the male tab terminal and the bending portion bends upward. The leaf spring functions as a both-ends support spring by engaging with the spring, and the bending portion extends rearward as the bending portion is further compressed into a flat shape in the state of the both-end support spring. A locking protrusion is provided that exerts a backward force on the locking portion and displaces the box portion forward by the reaction force.
A female terminal characterized by that. In the front part, it has a cylindrical box part which secured the insertion space of the male tab terminal between the upper wall and the lower wall, and the male tab terminal from the front to the box part on the upper wall and the lower wall respectively. When inserted, the female terminal provided with a leaf spring and a tab receiving part for electrically connecting the male tab terminal and the female terminal by sandwiching the male tab terminal is directed with the box part facing forward. By inserting it into the terminal housing chamber of the connector housing from the rear in a posture, the locking portion of the flexible lance provided on the ceiling wall of the terminal housing chamber is made to the upper wall by utilizing the bending of the lance. The female terminal is engaged with the formed locking hole, thereby preventing the female terminal from being pulled backward, and fixed to the inside of the terminal accommodating chamber. The front end wall of the terminal accommodating chamber allows the female terminal to move forward. Female terminals on connectors with restricted movement A fixed structure,
The leaf spring has a front end fixed to the upper wall and a free end extending backward, and when the male tab terminal is inserted, the male tab terminal is pushed by the male tab terminal and bent upward, and the male tab terminal is pressed downward by the reaction force. Formed as a cantilever spring
The leaf spring is provided on the free end side of the cantilever spring with a curved portion extending backward while being curved downward and convex in order to contact the inserted male tab terminal,
When the male tab terminal is inserted into the rear end of the bending portion, the locking portion of the lance engaged with the locking hole is pushed by the male tab terminal and the bending portion bends upward. The leaf spring functions as a both-ends support spring by engaging with the spring, and the bending portion extends rearward as the bending portion is further compressed into a flat shape in the state of the both-end support spring. A locking protrusion is provided that exerts a backward force on the locking portion and displaces the box portion forward by the reaction force.
A female terminal fixing structure in a connector. After the locking protrusion provided at the rear end of the curved portion of the leaf spring of the female terminal is in a posture orthogonal to the insertion direction of the female terminal when the male tab terminal is inserted and the leaf spring is deformed Formed as an upwardly projecting piece with a face wall,
The locking portion of the lance is provided with a notch for engaging the locking protrusion, and the rear wall of the locking protrusion is in contact with the notch so that the notch faces backward from the rear wall of the locking protrusion. A locking wall facing the front that receives the force of
The female terminal fixing structure in the connector according to claim 2.

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