JP2953961B2 - Connector manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector having a superior connection order in which an arbitrary contact can be brought into contact with another contact prior to another contact when a set of a connector including a male connector and a female connector is inserted and removed. And its manufacturing method.

[0002]

2. Description of the Related Art One conventional connector of this kind is disclosed in Japanese Patent Laid-Open Publication No. 3-89475. This connector uses a housing having two positioning steps (contact mounting member) and one type of contact having one positioning protrusion (stopper portion), and reverses the insertion posture of the contact into the housing. By doing so, the contact position between the contact of the mating connector and the own contact is changed, and the connection time of the contact at the time of connector insertion / removal is made different, thereby obtaining two types of connection order superiority.

[0003]

However, the conventional connector described above has a problem that only two types of connection order can be formed.

A general electric circuit requires a signal, a power supply, and a ground terminal. The order of connection is generally in the order of ground, power, and signal. On the contrary, the order of disconnection is in the order of signal, power, and ground. . In these electric circuits, if the power supply is connected earlier than the ground, unless a special protection circuit is provided,
There is a danger that an inrush current exceeding the standard flows into the electric circuit, preventing normal operation or destruction of elements and circuits. In the above connector, three or more connection priority advantages cannot be provided, so that independent connection times cannot be provided for each of the grounding, power supply, and signal. The purpose of providing the connector with a circuit protection function in plug connection or the like cannot be sufficiently achieved.

In addition, this connector requires a step on the inner surface of the housing, requires complicated inner surface processing and inner surface inspection, and has the drawback that not only the manufacturing process is complicated but also the manufacturing cost is increased. Was.

[0006]

[0007]

[0008]

[0009]

According to the present invention, there is provided a connector manufacturing method comprising: a housing having a plurality of contact holes having a front window provided on a front portion and a rear window provided on a rear portion at both ends; A front contact portion connected to a contact of a mating connector inserted into the contact hole, a locking portion locked in the contact hole, a rear terminal portion projecting from the rear window, the locking portion, and the rear portion; A contact provided between the terminal and the front contact portion, the contact having a stepped pressure receiving surface having three or more surfaces different in distance from each other and being press-fitted and locked into the contact holes by a contact press-fitting jig; A method of manufacturing a connector, comprising:
3 or more sides of the stepped pressure receiving surface in contact on each side three stages
A pressurizing surface having the above-described height, and when press-fitting the contact into the contact hole, the contact press-fitting jig is moved in the axial direction of the contact hole until the pressurizing surface contacts the rear surface of the contact hole. It is characterized by pressing

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a structural view of one embodiment of the present invention.
(A) is a partially cutaway exploded perspective view, and (b) is a cross sectional view.

Referring to FIG. 1, this female connector 100
The housing 1 has a plurality of contact holes 11 and is formed of a molded insulator, and the contacts 2 are formed of a plurality of metal conductors which are press-fitted into the contact holes 11 by press-fitting jigs 3. The contact hole 11 is a hole having a rectangular cross section penetrating between the front part 12 and the rear part 15 which form both end surfaces of the housing 1. The front part 12 has a front window 13, and the rear part 15 has a rear window 16. Have. Front window 1
3 has a tapered portion 1 having a large diameter in the outer direction.
4 are formed.

The contact 2 comprises a socket-shaped front contact portion 21, a U-shaped beam 22 for supporting the front contact portion 21 in a U-shape, a step portion 24, and a rear terminal portion 25 in this order. Yes, it is manufactured by continuous pressing from a metal spring plate-like material. The outer dimension of the U-shaped beam 22 is the contact hole 1
When the contact 2 is pressed into the contact hole 11 in the direction of the arrow using the press-fitting jig 3, the locking claw 23 provided on the opening surface side of the U-shaped beam 22 causes the contact claw 23 to contact the contact hole 11. As a result, the contact 2 is held in the housing 1.

In the female connector 100 in which the contact 2 is held in the contact hole 11, a pin-shaped contact of a male connector (not shown) as a mating connector is inserted into the contact hole 11 through the front window 13. ,
This contact is inserted and connected to the front contact part 21 of the contact 2. Also, the rear terminal portion 2 of the contact 2
Reference numeral 5 denotes a dimension protruding outside the housing 1 from the rear surface portion 15, and is connected to a wiring interposed between the housing 1 and the electric circuit.

The contact 2 further has a step 24 between the locking portion including the U-shaped beam 22 and the locking claw 23 and the rear terminal portion 25. The step portion 24 receives three press-fittings from the press-fitting jig 3 when it is press-fitted into the contact hole 11 using the press-fitting jig 3, and has three pressure receiving surfaces 24 a and 24 b.
And 24c are provided stepwise at positions different from each other in distance from the front contact part 21.

The press fitting jig 3 of the contact 2 is a strip-shaped metal plate having a width smaller than a pitch between the adjacent contacts 2 so as not to interfere with the adjacent contacts 2. 24b and 24
and c. Until the pressing surface 31 contacts the rear surface portion 15 of the contact hole 11, the pressure receiving surfaces (24a, 24b and 24
c) is pressed in the axial direction of the contact hole 11 to press-fit the contact 2 into a predetermined position of the contact hole 11. The distance from the front window 13 to the front contact part 21 of the contact 2 depends on the pressure input from the press-fitting jig 3.
4a, 24b and 24c. That is, when a pressure input is received on the pressure receiving surface 24a, the distance from the front window 13 to the front contact portion 21 of the contact 2 is greatest, and conversely, when a pressure input is received on the pressure receiving surface 24c, the distance from the front window 13 to the front contact portion 21 is increased. Is the smallest.

Therefore, the connection order between the contact of the mating connector and the contact 2 of the female connector 100 is the first in the contact 2 receiving the pressure input from the pressing surface 31 to the pressure receiving surface 24c. The surfaces 24b and 24a are arranged in this order. Conversely, the contact 2 to be connected to the ground terminal should receive the press-fit from the press-fitting jig 3 to the pressure-receiving surface 24c, and the contact 2 to be connected to the signal terminal should be pressed from the press-fit jig 3 to the pressure-receiving surface 24a. Should be pressed.

Here, an example of the female connector 100 of the present embodiment is as follows.
The length up to 5 is 13 mm, and the size of the rear window 16 is 1.8.
mm square, the pitch between the rear windows 16 is 2.54 mm, the length of the contact 2 from the tip of the front contact portion 21 to the pressure receiving surface 24c is 6.2 mm, and the height of the U-shaped beam 22 is 1.75 mm, the length from the pressure receiving surfaces 24a to 24b and the length from the pressure receiving surfaces 24b to 24c are each 0.8 mm, and each step of the step portion 24 is 0.5 mm.

FIG. 2 is an explanatory view for explaining one of the manufacturing steps of the female connector 100 according to the present embodiment. FIG. 2A is a perspective view showing a step of press-fitting the contact 2 into the housing 1.
(B) is a cross-sectional view of (a), and (c) is a perspective view in a state where the contact 2 has been pressed into the housing 1.

Referring to FIGS. 2A and 2B, this manufacturing process is a process of press-fitting a plurality of contacts 2 into the housing 1 of the female connector 100 at a time. The press-fitting jig 3A has a structure in which a plurality of contacts 2 can be press-fitted into the housing 1 at one time. That is, the press-fitting jig 3A is
The height of the pressing surface 31A is set at a maximum of three steps corresponding to the step of the step part 24 so that the contact surface can contact the pressure receiving surface (any of 24a, 24b and 24c) of the contact 2 corresponding to the connection priority of the contact 2. You have set. This pressing surface 31A
Is applied to the contact 2, the pressing surface 31A comes into contact with the pressure receiving surface of the corresponding contact 2, and in this state, the press-fitting jig 3A
Are pressed in the axial direction (arrow direction) of the contact holes 11 to press-fit the plurality of contacts 2 into the housing 1 at once. Due to this press-fitting, the pressurizing surface 31 </ b> A
When it comes into contact with 5, the contact press-fitting step is completed.

The press-fitting jig 3A is a jig for press-fitting the contacts 2a and 2b provided on the upper stage of the housing 1. Contacts 2c and 2d are provided at the lower stage of the housing 1.
In order to press-fit the contact 2, a similar contact 2
A press-fitting jig having a pressing surface corresponding to the connection priorities of c and 2d is used.

Referring to FIG. 2C, the contact 2a
The step of press-fitting the housing 1 through 2d is completed, and the female connector 100 is completed. Contacts 2c and 2
d is pressed into the housing 1 most deeply, then the contact 2b is pressed deeply, and the press-fit amount of the contact 2a is the smallest.

FIG. 3 is a sectional side view showing a method of connecting the female connector 100 and the male connector 200 according to this embodiment.
(A) shows the connection method of the female connector 100 in the first contact setting state, and (b) shows the connection method of the female connector 100 in the second contact setting state.

(A) The female connector 100 has a ground contact 2A and a signal contact 2B. The front contact portion 21 of the contact 2A and the front contact portion 21 of the contact 2B have a position difference of a distance d1. Now, the two contacts 8 in the form of pins of the male connector 200 are connected to the female connector 100 from the front window 13 in the same positional relationship.
, The ground contact 2A is connected to the contact 8 earlier than the signal contact 2B by a time corresponding to the distance d1.

Similarly, the female connector 100 of (b) has a ground contact 2A and a power contact 2C,
The ground contact 2A connects to the contact 8 earlier than the power contact 2C by a time corresponding to the distance d2 between the front contact portions 21.

As described above, the female connector 10 of the present embodiment
0 denotes a housing 1 and a contact 2 each having the same structure.
(2a to 2b and 2A to 2C), only by selecting the pressure receiving surface of the step portion 24 provided in the contact 2, for example, the ground contact 2A is the first and the power contact 2C is the second Since the signal contact 2B can be given the third connection order advantage such as the third connection order, there is an advantage that it can be manufactured at low cost.

In the female connector 100, when the contacts 2 are pressed into the housing 1, the rear surface 15 of the housing 1 functions as a stopper for the pressing surface 31 of the press-fitting jig 3. , 24
b and 24c) to the rear surface 1 of the housing 1.
5 can be matched. Therefore, the female connector 100 can improve the positional accuracy of the front contact portion 21, that is, the positional accuracy of the connection between the contact 2 and the contact of the mating connector, and can provide the connection superiority in three or more stages. Easy.

Further, in the female connector 100 of the present embodiment, the step portion 24 is formed on the contact 2 which is easy to process and inspect the outer shape in order to form a superior connection order.
There is an advantage that it is highly reliable and can be manufactured at low cost.

In this embodiment, the female connector 1
Although the step portion 24 is provided on the contact 2 on the 00 side, it is apparent that the configurations of the male connector 200 and the female connector 100 may be interchanged.

[0030]

As described above, according to the present invention, since each of the contacts receives press-fitting upon the contact when press-fitting into the contact hole of the housing, the pressure-receiving surfaces at different distances from the front contact portion are different from each other. since the provided three sides or more between the engaging portion and the rear terminal portion, having three or more connection order advantage, moreover reliable, there are inexpensive connector easily manufactured can when not cormorants effect.

[Brief description of the drawings]

FIG. 1 is a structural view of an embodiment of the present invention, in which (a) is an exploded perspective view with a part cut away, and (b) is a cross-sectional view.

FIGS. 2A and 2B are explanatory views for explaining one of manufacturing steps of the female connector 100 according to the embodiment, in which FIG. 2A is a perspective view showing a step of press-fitting a contact 2 into a housing 1, and FIG. (C) shows the contact 2 in the housing 1
FIG. 2 shows a perspective view in a state where the press-fitting has been completed.

FIG. 3 shows a female connector 100 and a male connector 20 of the present embodiment.
5A and 5B are side cross-sectional views illustrating a method of connecting the female connector 100 to the first connector in a first contact setting state, and FIG. ing.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 female connector 1 housing 11 contact hole 12 front portion 13 front window 14 tapered portion 15 rear portion 16 rear window 2, 2a to 2d contact 2A ground contact 2B signal contact 2C power supply contact 21 front contact portion 22 Beam 23 Locking claw 24 Step 25 Rear terminal 3,3A Press-in jig 31,31A Pressing surface 200 Male connector 8 Contact

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 9/16 102 H01R 13/642 H01R 43/00 H01R 43/20

Claims (1)

(57) [Claims] 1. A housing having a plurality of contact holes having a front window provided on a front portion and a rear window provided on a rear portion at both ends, and a contact of a mating connector inserted into the contact hole from the front window. A front contact portion to be connected, a locking portion locked in the contact hole, a rear terminal portion protruding from the rear window, the locking portion, and the rear terminal portion
And the distance from the front contact portion is different from each other.
With three or more steps of pressure receiving surface
Press-fit and engage the contact holes with a jig.
And a contact to be stopped.
Thus, the contact press-fitting jig is connected to the three surfaces of the contact.
3 steps or more in contact with the above stepped pressure receiving surface
A pressing surface having a height of
When press-fitting the contact hole,
The tool presses the pressing surface against the rear surface of the contact hole.
Up to the axial direction of the contact hole.
Connector manufacturing method .