JPH0430792Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) This invention relates to an improvement in the housing structure of a female connector that is inserted and fitted into a male connector.

(Prior Art) Conventionally, as shown in FIGS. 3 to 5, this type of female connector generally has a first housing chamber in the front part of a housing 1 into which a male connector (not shown) is inserted and fitted. 2, and has a second storage chamber 3 adjacent to the first storage chamber 2 at the rear thereof, and from this second storage chamber 3 to the first storage chamber 2.
Insert the male terminal 20 toward the
The tip tab portion 20a is connected to the first storage chamber 2 and the second storage chamber 2.
It is inserted through a lance 5 into a tab hole 4 formed in a boundary wall M with a storage chamber 3, and is positioned in a horizontal state.

In addition, as shown in FIG. 4, the lance 5 is
It is provided in a protruding manner on the upper wall of the second housing chamber 3, and works to fit into the engagement recess 20b formed in the male terminal 20 and reliably lock the male terminal 20 in the housing 1. It is something to do.

(Problem to be Solved by the Invention) However, in the housing structure of the conventional female connector described above, in order to mold the lance 5 of a predetermined shape in the second accommodation chamber 3 of the housing 1, it is necessary to It is necessary to open a lance extraction window hole 6 having a width equal to or greater than the width of the tab hole 4 in the boundary wall M and positioned above the tab hole 4.

Furthermore, the lance 5 needs to have a certain width in order to obtain the required strength, and also due to the recent miniaturization of the male terminal 20,
The lance removal window hole 6 tends to be larger than the tab hole 4.

In addition, although it is only necessary to increase the height dimension a of the tab hole 4, since the dimensions of the lance extraction window hole 6 are determined, the height dimension a of the tab hole 4 is determined by that, and the height dimension a of the tab hole 4 is determined by that. The height a of the hole 4 must be equal to or smaller than the height b of the lower surface of the lance 5 (a≦b).

Therefore, if the male terminal 20 is carelessly inserted from the second accommodation chamber 3 toward the tab hole 4, the male terminal 20 will be inserted into the second accommodation chamber 3 side as shown by the two-dot chain line in FIG. The male terminal 20 rotates about the peripheral wall forming the opening edge 3a as a fulcrum and is likely to be inserted in an inclined state, so the tip tab portion 20a of the male terminal 20 protrudes from the lance removal window hole 6, and it is difficult to position it in the correct position. There was a fear that I would not be able to do it.

This invention was made in order to solve the problems of the conventional female connector housing structure described above, and its purpose is to prevent the tip tab of the male terminal from protruding from the lance removal window hole. It is an object of the present invention to provide a housing structure for a female connector that can be easily positioned at a normal position so as to prevent this from occurring.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, the housing structure of the female connector of this invention has a first housing chamber into which the male connector is fitted, and A second storage chamber having a lance is provided adjacent to the storage chamber,
Furthermore, a tab hole is opened in the boundary wall between the first storage chamber and the second storage chamber, and a lance removal window hole is opened at a position above the tab hole corresponding to the lance. , a female connector in which the male terminal is installed in a horizontal state when the male terminal is inserted from the second storage chamber toward the tab hole and the tip tab portion of the male terminal is inserted into the tab hole; In the housing, at least one wall of the peripheral wall forming the opening edge of the second storage chamber, which faces the lance, extends toward the insertion side of the male terminal, so that the male terminal is horizontally inserted. It is characterized by forming a positioning part to maintain the position.

(Function) According to the housing structure of the female connector of this invention, at least one wall facing the lance of the peripheral wall forming the opening edge of the second accommodation chamber into which the male terminal is inserted toward the tab hole, Since the positioning part is formed by extending toward the insertion side of the male terminal, when inserting the male terminal, the positioning part reliably positions the male terminal in a horizontal state and maintains this state. Can be maintained and suppressed.

Therefore, when inserting the tip tab portion of the male terminal into the tab hole, it is possible to reliably prevent the tip tab portion from protruding from the lance removal window hole.

(Example) Hereinafter, an example of the housing structure of the female connector of this invention will be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view of a housing and a male terminal showing an embodiment of the housing structure of the female connector of the present invention, and FIG. 2 is a longitudinal sectional side view showing the inserted state of the male terminal.

In FIGS. 1 and 2, the same reference numerals will be used to describe parts that have the same structure as the housing structure of the conventional female connector shown in FIGS. 3 to 5.

As shown in FIGS. 1 and 2, in the housing structure of the female connector of this invention, the opening edge 3a on the side of the second accommodation chamber 3 into which the male terminal 20 is inserted toward the tab hole 4 is At least one wall of the peripheral wall of the housing 1 to be formed facing the lance 5, that is, the entire lower wall and part of both side walls in this embodiment, extends toward the insertion side (backward) of the male terminal 20. As a result, a positioning portion 31 is formed.

In this case, as shown by the solid line in FIG. 2, the positioning part 31 is arranged such that when the upper surface of the male terminal 20 hits the lower surface of the lance 5 when inserting the male terminal 20, the height of the tab hole 4 is In other words, the tip tab portion 20a of the male terminal 20 should not be located above the dimension a.
The length L is set such that the male terminal 20 is maintained in a substantially horizontal state without protruding from the lance removal window hole 6.

Therefore, the male terminal 20 can be reliably positioned at the normal position shown by the two-dot chain line in FIG. 20a can be accurately inserted into the tab hole 4, and the operation of inserting the male terminal 20 can be performed extremely easily and reliably.

[Effects of the invention] As explained above, according to the housing structure of the female connector of this invention, at least A wall facing Lance,
Since the positioning part is formed by extending toward the insertion side of the male terminal, when inserting the male terminal, the positioning part reliably positions the male terminal in a horizontal state and maintains this state. Can be maintained and suppressed.

Therefore, when inserting the tip tab portion of the male terminal into the tab hole, it is possible to reliably prevent the tip tab portion from protruding from the lance removal window hole, making the male terminal insertion work extremely easy and reliable. can be done.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a housing and a male terminal showing an example of the housing structure of the female connector of this invention, Fig. 2 is a vertical side view showing the inserted state of the male terminal, and Fig. 3 is a conventional FIG. 4 is an exploded perspective view of the housing and male terminal in the housing structure of a female connector, FIG. 4 is a longitudinal side view showing the inserted state of the male terminal, and FIG. 4 is a front view of the front opening side of the conventional housing. It is. FIG. 5 is a front view of the front opening side of the conventional housing as well. 1...Housing, 2...First accommodation chamber, 3...
...Second storage chamber, 3a...Opening edge, 31...Positioning portion, 4...Tab hole, 5...Lance, 6...
Window hole for lance removal, 20... Male terminal, M... Boundary wall, a... Height dimension of tab hole, b... Height dimension of lower surface of lance, L... Length dimension of positioning part.

Claims (1)

[Claims for Utility Model Registration] A first housing chamber into which a male connector is fitted, a second housing chamber having a lance adjacent to the first housing chamber, and a second housing chamber having a lance; A tab hole is opened in the boundary wall between the first storage chamber and the second storage chamber, and a lance removal window hole is opened above the tab hole at a position corresponding to the lance, and the male terminal is inserted into the tab hole. , a female connector housing in which the male terminal is inserted into the tab hole from the second accommodation chamber, and the male terminal is installed in a horizontal state when the tip tab portion of the male terminal is inserted into the tab hole; , maintaining the male terminal in a horizontal state by extending at least one wall facing the lance of the peripheral wall forming the opening edge of the second storage chamber toward the insertion side of the male terminal; A housing structure for a female connector characterized by forming a positioning part.