JP3064882B2 - Female connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a female connector to be inserted into a recess of a mating connector housing, and more particularly to a female connector for inserting a retainer from a side surface to prevent a terminal fitting from coming off.

[0002]

2. Description of the Related Art Conventionally, a bolt-tight connector shown in FIG. 3 has been known as this type of female connector. In the figure, a female connector housing 1 having a vertically long rectangular box shape is shown.
Has a cylindrical terminal fitting accommodating chamber 2 penetrating in the front-rear direction inside thereof and a bolt insertion hole 4 through which the bolt 3 can be inserted in the front-rear direction. On the other hand, retainer insertion holes 6 and 6 for inserting the retainers 5 and 5 are formed on the upper and lower surfaces of the female connector housing 1, and stopper insertion holes 7 orthogonal to the bolt insertion holes 4 are formed on the side surfaces. In addition, a bolt stopper 8 having a bifurcated tip from the stopper insertion hole 7 and engaging with a small diameter portion 3a formed in the middle of the bolt 3 can be inserted.

At the time of assembling, the bolt 3 is inserted into the bolt insertion hole 4, and the bolt stopper 8 is inserted through the stopper insertion hole 7 while the small diameter portion 3 a is inserted up to the stopper insertion hole 7.
Insert Then, although the bolt 3 is rotatable, it is held so as not to come off. On the other hand, the terminal fittings are inserted into the terminal fitting accommodating chamber 2, and the retainers 5, 5 are inserted from the retainer insertion holes 6, 6 on the upper surface and the lower surface. After the retainers 5 and 5 are inserted, the female connector housing 1 is inserted into a concave portion of a male connector housing (not shown), and the female connector housing 1 is tightened and fixed with bolts 3.

[0004]

In the above-mentioned conventional female connector, when the retainers 5 and 5 are not completely inserted, they protrude from the side surface of the female connector housing 1. There was a problem in that it could not be inserted because it was caught when trying to insert it into the recess.

[0005] The present invention has been made in view of the above problems, and has as its object to provide a female connector capable of preventing connection work with a mating connector housing while the retainer is protruding.

[0006]

In order to achieve the above object, the invention according to claim 1 is provided with a cylindrical terminal accommodating chamber into which a terminal fitting can be inserted and which can be inserted into a recess of a mating connector housing. A female connector housing, and a retainer that can be inserted through a retainer opening on a side surface of the female connector housing so as to intersect the terminal receiving chamber in the female connector housing and lock the terminal fitting.
A stopper that can be inserted into a stopper opening on the side surface of the female connector housing and that has a flange-shaped orthogonal piece that extends outward from the retainer opening and that overlaps after the retainer is inserted. There is a configuration to do.

[0007] The invention according to claim 2 is based on claim 1.
4. The female connector according to claim 1, wherein the female connector housing penetrates the female connector housing from the back to the front so as to be orthogonal to the stopper opening and protrudes toward the bottom surface of the mating connector housing. And a concavo-convex engagement structure for preventing the bolt from coming off is formed between the bolt and the stopper. The invention according to claim 3 is a female connector in which a retainer and a stopper for bolting are inserted from a side surface of the female connector housing penetrated by a bolt, wherein an outer end of the stopper is connected to the retainer. It extends to the side and is configured to overlap from the outside.

[0008]

According to the first aspect of the present invention, after the terminal fitting is inserted into the cylindrical terminal accommodating chamber of the female connector housing, the retainer is opened through the retainer opening on the side surface of the female connector housing. When this is inserted, it intersects with the terminal accommodating chamber in the female connector housing and locks the terminal fitting in the terminal accommodating chamber. Next, when the stopper is inserted through the stopper opening on the side surface of the female connector housing, the flange-shaped orthogonal piece extending from the outer end of the stopper to the side of the retainer opening overlaps the retainer. Therefore, the depth at which the stopper can be inserted changes depending on the state of insertion of the retainer, whereby it is possible to detect insufficient insertion of the retainer during the operation of inserting the stopper.

According to the second aspect of the present invention, when the bolt is inserted from the back to the front of the female connector housing, the bolt is orthogonal to the stopper opening, and the stopper is inserted. The concave and convex engagement structures formed on both are used to prevent slippage. On the other hand, the bolt protrudes from the female connector housing toward the bottom surface of the mating connector housing, and is screwed and fixed to a nut held on the bottom surface. Furthermore, when a retainer is inserted from the side of the female connector housing, a bolt is inserted through the female connector housing, and a bolt stopper is inserted from the side,
The outer end of the stopper extending on the side of the retainer overlaps the retainer.

[0010]

As described above, according to the present invention, since the orthogonal piece of the stopper is overlapped with the retainer, the insertion state of the retainer can be detected by mounting the stopper, and the retainer can be inserted. It is possible to provide a female connector that can prevent the connection work with the mating connector housing from being started while protruding. According to the second aspect of the present invention, a bolt stopper for preventing the bolt from coming off can be used as a stopper, so that the invention can be carried out without increasing the number of parts. Further, according to the third aspect of the present invention, the insertion state of the retainer can be detected when the stopper for bolting is mounted, and the retainer can be inserted by the mounting operation. The connection work with the housing can be prevented from starting.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a bolt-fastened connector to which a female connector according to an embodiment of the present invention is applied, and FIG. 2 is a sectional view. The front side of the female connector refers to the side of the mating surface with the mating connector (not shown). In the figure, the female connector housing 10 is formed in a vertically long rectangular cross section with rounded corners, and has a plurality of terminal accommodating chambers 11 penetrating in the front-rear direction. It can be inserted into the hood of the male connector housing. In the present embodiment, the female connector housing 10 is formed in a vertically long rectangular box shape, but the female connector housing 10 is inserted into the concave portion of the mating male connector housing such that the peripheral surfaces thereof face each other. What is necessary is just a thing, and external shapes etc. can be deformed suitably.

On the side of the female connector housing 10,
A rectangular thin box-shaped retainer opening 12 intersecting with the terminal accommodating chamber 11 is formed, and the retainer 20 can be inserted through the retainer opening 12. Same retainer 20
Is provided with a rib 21 corresponding to the mesh of the terminal accommodating chamber 11 and a small projection 22 which protrudes into each terminal accommodating chamber 11 and is engaged with a part of the terminal fitting to prevent the terminal fitting from coming off.
When the retainer 20 is inserted into the retainer opening 12, the small projections 22 are not temporarily projected into the terminal accommodating chamber 11 due to the engagement state of the engagement projections (not shown). It can be inserted into two stages of the main locking state in which it protrudes into the terminal accommodating chamber 11 and engages a part of the terminal fitting.

In the present embodiment, the retainer 20 is mounted so as to be substantially perpendicular to the side surface of the female connector housing 10. However, the retainer 20 is not necessarily inserted perpendicularly. It is not something that has to be formed. By the way, female connector housing 1
0, a bolt through-hole 13 is formed to penetrate from the rear side to the front side along with the terminal accommodating chamber 11, and a bolt stopper opening 14 is formed on the side surface so as to intersect with the bolt through-hole 13. Is formed. The bolt stopper opening 14 is formed slightly forward with the bolt stopper opening 14 while being aligned with the retainer opening 12.

A bolt 30 can be inserted into the bolt through hole 13, and a small diameter portion 31 having a small diameter is formed in a portion of the bolt 30 passing through the bolt stopper opening 14. On the other hand, the bolt stopper 40 is formed in a thick plate shape that can be inserted into the bolt stopper opening 14, and has a bifurcated portion 41 that can hold the small-diameter portion 31 of the bolt 30 at the front end. . At the outer end portion of the bolt stopper 40, an orthogonal piece 42 is formed extending perpendicularly to the axial direction toward the retainer opening 12, and the orthogonal piece 42 is formed in the female connector housing 1.
0 protrudes from the retainer opening 12 along a concave portion 15 formed between the retainer opening 12 and the bolt stopper opening 14 on the outer surface of the retainer opening 1.
2 has a length that overlaps the retainer 20 inserted into the retainer 20. The retainer 20 is formed with a concave portion 23 that can be inserted when the orthogonal pieces 42 overlap each other.

In this embodiment, the bolt stopper 40 is used as a stopper that overlaps the retainer 20. However, the bolt stopper 40 is not necessarily required, and the female connector housing 10 is provided adjacent to the retainer 20 independently. It may be disposed on the side surface. In addition, the bolt stopper 40 is a bolt 30 at the forked portion of the front end.
It is necessary to be inserted in a predetermined direction so as to engage with, and the orthogonal piece 42 is provided only on one side. However, it is sufficient that the orthogonal piece 42 overlaps the retainer 20. When there is no orthogonal piece, an orthogonal piece extending in a disk shape may be formed instead of the orthogonal piece 42.

A recess 15 is formed in the outer peripheral surface of the female connector housing 10 and a recess 23 is also formed in the retainer 20 so that the orthogonal piece 42 can enter therein. In the inserted state, the outer peripheral surface is flush. Like that.
It is not always necessary to make the plane flush, but when the plane is flush, even if the orthogonal piece 42 slightly rises, it can be easily visually recognized. Next, the operation of the present embodiment having the above configuration will be described. In advance, the retainer 20 is inserted into the retainer opening 12 of the female connector housing 10 until it is temporarily locked.
Is inserted. Next, a female terminal fitting (not shown) is inserted into the terminal receiving chamber 11 from the rear side. After all the terminal fittings have been inserted, the retainer 20 is inserted into the retainer opening 12 until the terminal lock state is reached. Normally, in this state, the retainer 20 is flush with the outer peripheral surface of the female connector housing 10. Next, the bolt 30 is inserted into the bolt through hole 13 from the rear side. When the small diameter portion 31 is inserted up to the bolt stopper opening 14, the bolt stopper 40 is inserted through the bolt stopper opening 14. Then
The forked portion 41 of the bolt stopper 40 holds the small-diameter portion 31 of the bolt 30 so that the bolt 30 is rotatable and prevented from coming off. When the bolt stopper 40 is inserted, the orthogonal piece 42 extending toward the retainer opening 12 enters the recess 15 of the female connector housing 10 and the recess 23 of the retainer 20. Recess 2 of retainer 20
In 3, the orthogonal pieces 42 overlap from the outside.
If the retainer 20 is inserted to the proper position, the orthogonal pieces 42 overlapping from the outside are flush with the outer peripheral surface of the female connector housing 10. However, the retainer 20
Is not correctly inserted, the female connector housing 10 is inserted when the orthogonal piece 42 enters the recess 23.
Slightly rises from the outer peripheral surface of. In this state, the worker can visually recognize the insertion failure of the retainer 20, and can also push the orthogonal piece 42 and insert the retainer 20 all the way. In any case, the retainer 20 does not protrude or is inserted into the male connector housing.

As described above, the female connector housing 10
Retainer 20 in retainer opening 12 formed in the side surface of
When the bolt stopper 40 is inserted from the bolt stopper opening 14 after inserting the bolt stopper 40, the orthogonal piece 42 extending from the outer end of the bolt stopper 40 to the retainer opening 12 side overlaps with the retainer 20. 20
When the insertion is insufficient, the orthogonal piece 42 is raised and can be visually recognized, and if the bolt stopper 40 is pushed as it is, the retainer 20 is pushed in by the orthogonal piece 42 and the insertion failure can be eliminated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a bolt-fastened connector to which a female connector according to an embodiment of the present invention is applied.

FIG. 2 is a sectional view of the bolt tightening type connector.

FIG. 3 is an exploded perspective view of a conventional bolt-fastened connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Female side connector housing 11 ... Terminal accommodating chamber 12 ... Retainer opening 13 ... Bolt through hole 14 ... Bolt stopper opening 20 ... Retainer 30 ... Bolt 31 ... Small diameter part 40 ... Bolt stopper 41 ... Bifurcated part 42 ... Orthogonal piece

──────────────────────────────────────────────────の Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01R 13/42 H01R 13/621

Claims (3)

(57) [Claims] 1. A female connector housing having a cylindrical terminal housing chamber into which a terminal fitting can be inserted, the female connector housing being insertable into a concave portion of a mating connector housing; A retainer that can be inserted through a retainer opening on the side surface of the female connector housing so as to intersect and lock the terminal fitting; and an outer end that can be inserted into a stopper opening on the side surface of the female connector housing. A female connector provided with a flange-shaped orthogonal piece extending to the side of the retainer opening and overlapping after insertion of the retainer. 2. The female connector according to claim 1, wherein the female connector housing extends through the female connector housing from the back to the front so as to be orthogonal to the stopper opening. A female connector which holds a bolt protruding toward a bottom surface of a housing, and has a concave-convex engagement structure formed between the bolt and the stopper to prevent the bolt from coming off. 3. A female connector for inserting a retainer and a stopper for bolting from a side surface of a female connector housing penetrated by a bolt, wherein an outer end of the stopper extends toward the retainer. A female connector characterized by being overlapped from the outside.