JPH11162573A - Pin connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pin connector by which a front retainer can be easily inserted into a pin housing and can be easily pulled out of the pin housing and in which the front retainer pulled out of the pin housing can also be reused. SOLUTION: A pin connector has a pin housing 30 having a receiving part 10 fitted to a mating connector and a contact inducing part 31 to introduce a pin contact 20 to a normal position and a front retainer 50 which is inserted from the receiving part 10 and can detect whether or not the pin contact 20 exists in the normal position. In this case, a lock piece 53 engageable with the terminal inducing part 31 when the pin contact 20 is introduced to the normal position, is formed in the front retainer 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin connector, and more particularly to a pin connector having a positioning member capable of detecting a half-inserted state of a pin contact.

[0002]

9 and 10 are perspective views showing cross sections of a conventional pin connector. FIG. 9 is a view showing a state before a positioning member is inserted, and FIG. 10 is a view showing a state after a positioning member is inserted.

[0003] The pin connector includes a pin housing (insulator) 230 and a pin contact 220 fixed to the pin housing 230.

The pin housing 230 is provided with a receiving portion 210 into which a mating connector (socket connector) is fitted, and a contact portion of the pin contact 220 protrudes into the receiving portion 210. A cable 221 is connected to a connection portion of the pin contact 220.

[0005] The pin housing 230 is a pin contact 2
20 and a resilient locking piece 232 for holding the pin contact 220 in a predetermined position, and a receiving part 210 on the back of the resilient locking piece 232.
(See FIG. 9).

A positioning member 250 for detecting the inserted state of the pin contact 220 is provided in the space 233.
(See FIG. 10).

By the way, when the size of the cutout portion 234 on the inner wall surface of the pin housing 230 is a and the size of the thick portion 252 of the positioning member 250 is b, a <b.

As a result, when the positioning member 250 is inserted from the receiving portion 210 as shown in FIG.
Are press-fitted into the notches 234, and the positioning member 250 is securely fixed to the pin housing 230.

[0009]

However, when the above-described positioning member 250 is employed, there are the following problems.

A certain amount of force is required for press-fitting the positioning member 250.

When the cable 221 is replaced, it is necessary to pull out the positioning member 250, but a large force is required to pull out the press-fitted positioning member 250,
Difficult to pull out.

Since the thick portion 252 is deformed by press-fitting, it is difficult to reuse the positioning member 250.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and a problem thereof is that the positioning member can be easily inserted into the insulator, can be easily pulled out from the insulator, and the positioning member pulled out from the insulator can be re-used. It is to provide a pin connector that can be used.

[0014]

According to a first aspect of the present invention, there is provided a receiving part for fitting a mating connector, and a contact jig for guiding a pin contact to a proper position when the connector is assembled. In the pin connector having an insulator and a positioning member that is inserted from the receiving portion at the time of assembling the connector and can detect whether the pin contact is at the normal position, the pin contact is guided to the normal position. An engaging piece that engages with the terminal jig is formed on the positioning member.

When the pin contact is guided to the proper position, the engaging piece of the positioning member engages with the terminal jig, so that the positioning member can be fixed to the insulator without press-fitting. Further, since there is no portion that is deformed at the time of insertion / extraction, the positioning member can be reused.

According to a second aspect of the present invention, in the pin connector according to the first aspect, a hole engageable with a jig for releasing engagement with the terminal jig is formed in the positioning member. It is characterized by the following.

Since the positioning member has a hole which can be engaged with a jig for releasing the engagement with the terminal jig, the jig is inserted from the receiving portion and the jig is engaged with the hole. The positioning member is pulled out simply by pulling out the jig.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a cross section of a pin connector according to an embodiment of the present invention, FIG. 2 is a plan view of an insulator, FIG. 3 is a view as viewed from an arrow A in FIG. 2, and FIG. 4 is an arrow B in FIG. FIG.

The pin connector has a pin housing (insulator) 30, a pin contact 20, and a front retainer (positioning member) 50.

The pin housing 30 is, for example, of a two-core type and is formed of a synthetic resin.

A receiving portion 10 for fitting a mating connector is formed on one side of the pin housing 30, and a hole 35 for inserting the pin contact 20 is formed on the other side.

A resin lance 32 is provided in the pin housing 30.
And a contact separating portion 31 are provided.

The resin lance 32 holds the pin contact 20 at a predetermined position. A protrusion 36 is formed below the resin lance 32 so as to be able to contact the locking piece 22 of the pin contact 20. The receiving portion 1 is provided on the back of the resin lance 32.
A space 40 opening toward zero is formed.

The contact shank 31 is used to place the pin contact 20 in the correct position (correct position in the pin housing 30).
Lead to.

An end of the cable 21 is connected to a connection portion of the pin contact 20.

The pin housing 30 has another space 37 opened to the receiving portion 10, in which the pin contacts 20 adjacent to each other are short-circuited before the connector is fitted, and the pin contacts 20 are shorted after the connector is fitted. A short contact 38 for releasing a short circuit is provided.

The pin contact 20 is mounted in the pin housing 30 as follows.

The tip 20a of the pin contact 20 is
Insert into 5.

When the pin contact 20 is inserted into the hole 35, the engaging piece 22 of the pin contact 20 rides over the protrusion 36 of the resin lance 32 due to the elastic deformation of the resin lance 32, and the protrusion 36 and the locking piece 22 Are engaged, and the pin contact 20 is held at a predetermined position.

At this time, the tip 2 of the pin contact 20
0a is guided to a regular position in the receiving portion 10 by the guide function of the contact separating portion 31 working.

A rubber stopper 24 is attached to the end of the cable 21.
The rubber stopper 24 is also provided with the pin contact 2.
The pin is inserted into the hole 35 together with the pin 0 to prevent water from entering the pin housing 30.

FIG. 5A is a side view of the front retainer.
FIG. 5B is a view taken in the direction of the arrow C in FIG.

The front retainer 50 is formed of an insulating material and includes a lance deformation preventing portion (projection) 51, a lock piece (locking piece) 53, and a guide section 54.

When the front retainer 50 is inserted into the receiving portion 10, the lance deformation preventing portion 51
Is inserted into the space 40 on the rear side.

As shown in FIG. 5A, the lock piece 53 is located below the lance deformation preventing portion 51 and extends in a direction opposite to the lance deformation preventing portion 51. Lance deformation prevention part 51
When it is inserted into the space 40, it is elastically deformed by hitting the contact jig 31. Note that a projection 53a is formed below the lock piece 53.

The guide portion 54 includes a front retainer 50.
A hole 55 is formed to engage with the convex portion 61 of the extraction jig 60 (see FIG. 6) for extracting the.

Next, the operation when the front retainer 50 is mounted on the pin housing 30 will be described.

FIG. 6 is a view showing a state where the pin contact is inserted at a regular position, and FIG. 7 is a view showing a state where the pin contact is in a half-inserted state.

When the front retainer 50 is inserted from the receiving portion 10 when the pin contact 20 is inserted at a regular position, the lance deformation preventing portion 51 is inserted into the space 40.

When the lance deformation preventing portion 51 is inserted into the space portion 40, the lock piece 53 gets over the contact jig 31 and the projection 53a of the lock piece 53 engages with the contact jig 31.

As described above, the lock piece 53 is
2 and the contact shank 31 and the projection 53
Since a engages with the contact shank 31, the front retainer 50 does not come off, and it is detected that the pin contact 20 is inserted at a proper position.

On the other hand, when the pin contact 20 is in the half-inserted state (see FIG. 7), when the front retainer 50 is inserted from the receiving portion 10, the protrusion 36 on the lower part of the resin lance 32 is formed.
As a result, the resin lance 32 is pushed up due to the contact between the locking piece 22 of the pin contact 20 and the locking piece 22 of the pin contact 20.
Can not be inserted.

As described above, when the lance deformation preventing portion 51 can be inserted into the space portion 40, the protrusion 53a at the lower portion of the lock piece 53 is formed.
Cannot be engaged with the contact shank 31, so that it is detected that the pin contact 20 is not inserted at the proper position.

In FIG. 7, the front retainer 5
When extracting 0, the extraction jig 60 is inserted from the receiving portion 10. When the projection 61 of the jig 60 is engaged with the hole 55, the tapered surface 60 a at the tip of the drawing jig 60 pushes up the tip 53 b of the lock piece 53, and the protrusion 53 a (lock piece 53) and the contact shank 31. Is disengaged.

Thereafter, the front retainer 50 is pulled out of the receiving portion 10 (pin housing 30) by pulling the jig 60 as shown by the arrow a.

According to this embodiment, the front retainer 50 can be fixed to the pin housing 30 by engaging the lock piece 53 and the contact separating portion 31 without press-fitting, so that the front retainer 50 can be inserted and pulled out. It becomes easy and there is no part to be deformed at the time of insertion / extraction,
The front retainer 50 can be reused.

Further, by inserting the front retainer 50, it is possible to detect that the pin contact 20 is not inserted at a proper position, and it is possible to confirm the inserted state of the pin contact 20 without using an instrument such as a check gauge. .

FIG. 8 is a cross-sectional view showing a fitted state with a mating connector.

The mating connector (socket connector) includes a socket housing 130, a socket-side front retainer 150, and a socket contact 120.

Hole 1 penetrating through socket housing 130
The socket contact 120 is inserted into 35. Further, the resin lance 1 is provided in the socket housing 130.
32 are provided to hold the socket contacts 120 in place.

A socket portion 120a into which the tip portion 20a of the pin contact 20 is inserted is formed at the tip of the socket contact 120, and the end of the cable 121 is connected to the rear end of the socket contact 120.

A rubber stopper 124 is provided at an end of the cable 121, and the rubber stopper 124 prevents water from entering the socket housing 130.

The socket-side front retainer 150 includes:
When the socket contact 120 is inserted into a proper position, a protrusion 151 is provided which can be inserted into the space 140 on the back surface of the resin lance 132.

The socket-side front retainer 150
Has pin contact 2 facing socket portion 120a.
An opening 156 for introducing 0 is formed.

A seal rubber 70 is interposed between the inner peripheral surface of the pin housing 30 and the outer peripheral surface of the socket housing 130.
Water is prevented from entering between 0,130.

At the top of the socket housing 130, when the pin housing 30 is fitted,
And a release bar 181 for releasing the engagement.

The socket housing 130 holding the socket contact 120 is the receiving portion 1 of the pin housing 30.
0, the tip 20 of the pin contact 20 is inserted.
a passes through the opening 156 of the socket-side front retainer 150 and the socket portion 120 a of the socket contact 120.
And both contacts 20, 120 are connected.

At this time, since the hole 39 of the pin housing 30 and the projection 180 of the socket housing 130 are engaged with each other, the fitted state of the housings 30 and 130 is maintained.

[0060]

As described above, according to the pin connector of the first aspect of the present invention, the positioning member can be fixed to the insulator without press-fitting, and the positioning member can be easily inserted and pulled out. In addition, since there is no portion that is deformed during insertion / removal, the positioning member can be reused.

According to the pin connector of the present invention, the jig is inserted from the receiving portion, the jig is engaged with the hole, and the positioning member can be easily pulled out simply by pulling out the jig. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cross section of a pin connector according to an embodiment of the present invention.

FIG. 2 is a plan view of an insulator.

FIG. 3 is a view taken in the direction of the arrow A in FIG. 2;

FIG. 4 is a view on arrow B in FIG. 2;

5A is a side view of the front retainer, FIG.
(B) is a view on arrow C in FIG. 5 (a).

FIG. 6 is a diagram showing a state where a pin contact is inserted into a regular position.

FIG. 7 is a diagram showing a state where the pin contact is in a half-inserted state.

FIG. 8 is a cross-sectional view showing a fitted state with a mating connector.

FIG. 9 is a perspective view showing a cross section of a conventional pin connector, and shows a state before a positioning member is inserted.

FIG. 10 is a perspective view showing a cross section of a conventional pin connector, and shows a state after a positioning member is inserted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Receiving part 20 Pin contact 30 Pin housing (insulator) 31 Contact separating part 40 Space part 50 Front retainer (positioning member) 51 Projection part 53 Lock piece (engaging piece) 55 Hole 60 Jig 61 Convex part

Claims (2)

[Claims] An insulator provided with a receiving portion to be fitted with a mating connector and a contact locating portion for guiding a pin contact to a proper position when assembling the connector; and wherein the pin contact is inserted from the receiving portion when assembling the connector. And a positioning member capable of detecting whether or not the positioning member is at a normal position.When the pin contact is guided to the normal position, an engagement piece that engages with the terminal shaping portion is provided on the positioning member. A pin connector characterized by being formed. 2. The pin connector according to claim 1, wherein a hole engageable with a jig for releasing engagement with the terminal jig is formed in the positioning member.