JPH0236215Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is such that the direction in which the contact surfaces of the contacts are arranged facing each other is
This invention relates to a locking structure for a male contact that allows a male connector to be fitted and connected to two types of female connectors differing by 90 degrees to be manufactured without using two types of insulating bases having fixing holes at different positions.

A female connector, in which two female contacts are arranged facing each other and a male contact is inserted between them for connection, has two female contacts in the arrangement, as shown in the partial cross-sectional views shown in Figures 1a and b. There are different types. One of them is the contact surface 1a,
1b are arranged opposite to each other in the longitudinal direction of the insulating block 2, and the other one is arranged opposite to each other in the width direction of the insulating block 2 at the same pitch as the one arranged opposite to each other in the longitudinal direction as shown in FIG. This is what I did.

On the other hand, since the male contact 3 of the male connector is generally punched out in the shape shown in the perspective view shown in FIG. When the contact surfaces 1a and 1b of the child 1 come into contact, the contact condition becomes worse than the other two smooth surfaces, that is, the contact surface 4b. Therefore, if the opposing directions of the contact surfaces 1a and 1b of the female contact differ by 90 degrees as described above, the contact surface 4a will not be located on the contact surfaces 1a and 1b of the rough surface 4a as shown in the plan view shown in FIGS. 3a and 3b. Thus, the male contact 3 is fixed to the insulating base 5 while changing its direction.

By the way, the following method has conventionally been used to fix the male contactor 3. That is, as shown in FIG. 2, one or a plurality of protrusions 7 of the same height are provided on one surface continuous with the contact surface 4b of the fixing part 6, and one side of the insulating base 5 is the width of the fixing part 6. A method of fixing is provided by providing a rectangular fixing hole 8 which is slightly smaller and whose length on the other side is slightly smaller than the thickness of the fixing part 6 including the protrusion 7, and press-fitting the contact into this hole. ing.

However, in this locking structure, the surface of the fixing part 6 on which the protrusion 7 is not provided is fixed in contact with the wall surface of the fixing hole 8. Therefore, for example, the fixing hole 8 is made into a square shape, and the height of the protrusion 7 and the width of the fixing part 6 are selected so that the fixing hole 8 can be press-fitted into the square shape, and the height of the protrusion 7 and the width of the fixing part 6 are selected as shown in the plan view shown in FIGS. 4a and 4b. Even if it is possible to fix the contact surfaces 1a and 1b of the female contacts at different positions, the fixing positions of the contact surfaces 4 of the male contacts 3 will differ from the contact surfaces 1a and 1b of the female contacts shown by dotted lines, making it impossible to make a fitting connection. As a result, the installation position of the fixing hole 8 was changed 2
An insulating block 5 of this type is required. Therefore, since two molding dies are required, the manufacturing cost becomes high, and the number of parts increases, making parts management troublesome. Therefore, if it is possible to create a male connector that can be fitted and connected to two types of female connectors with different 90° contact surfaces facing each other using insulating blocks of the same shape with fixing holes of the same size in the same position, the insulating block It is possible to reduce manufacturing costs by reducing mold costs.

The present invention aims to provide a locking structure for a male contact that can meet the above requirements, and the details thereof will be explained next with reference to the drawings.

The features of this invention are as follows. That is, the partial perspective views of one embodiment shown in FIGS. 5a, b, and c,
As shown in the partial plan view and partial cross-sectional side view, on both sides of the fixing part 6 that is connected to the contact surface 4b of the male contact 3,
Fixing protrusions 7a and 7b of the same height are provided (the figure shows a case in which two fixing protrusions 7a are provided on one surface and one fixing protrusion 7b with a long top surface is provided on the other surface).
At the same time, the distance l ₁ between the top sides of the fixed protrusions 7a and 7b
The fixed part 6 is fixed so that the shape formed by the width _l2 of the fixed part 6 becomes a square shown by the dotted line in the figure.
The heights of the protrusions 7a and 7b are set according to the thickness of the protrusions 7a and 7b. On the other hand, the insulating block 5 is provided with a square fixing hole 8 whose dimensions are selected so that the fixing part 6 can be press-fitted therein, and the male contact 3 is fixed by being press-fitted therein. It is something.

In this way, even if the insertion angle of the male contact 3 into the fixing hole 8 is changed by 90 degrees, the center of the male contact 3 and the fixing hole 8 can be aligned as shown in the plan view shown in FIGS. 6a and 6b. are always aligned and fixed, and the relative position of the male contact with respect to the contact surfaces 1a, 1b of the female contact does not change. Therefore, a male connector that can fit into two types of female connectors whose contact surfaces face each other by 90 degrees can be manufactured using one type of insulating block.

The present invention has been described above, but when fixing portions are provided on both sides, it can be easily constructed by bending as shown in FIGS. 7 and 8. For example, Fig. 7a,
As shown in the perspective view and plan view shown in FIG. It is used when solder-dipping the connecting portion 9 of the contactor 3 onto a printed wiring board or the like. Increase in vaporized gas from pasty soldering aids such as flux,
Corrosion of the contact surface due to the rise of the liquid soldering aid due to capillary action and the formation of an oxide film can be prevented, thereby preventing deterioration of contact. In addition, in the above, the fixing protrusion 7 was used for fixing, but for example, as shown in the perspective view of FIG.
The present invention can also be applied to a male contact which is provided with an angular fixing protrusion 10 and is sunk into the wall of the fixing hole 8 so as to be more firmly fixed.

As is clear from the above explanation, according to the present invention, a male connector that can be fitted and connected to two types of female connectors whose contact surfaces face each other by 90 degrees can be manufactured using insulating blocks of the same shape. This is effective in reducing manufacturing costs and facilitating parts management.

[Brief explanation of the drawing]

Figures 1a and b are partial cross-sectional views showing female connectors in which the facing directions of the contact surfaces are different by 90 degrees, Figure 2 is a perspective view of a conventional male contact, and Figures 3a and b are good contacts. Figures 4a and 4b are explanatory diagrams of the connection state of the female and male contacts that are preferable for obtaining the desired results.
FIG. 5 is a perspective view of an embodiment of the present invention, and FIGS. 6 a and b show the contact positions of the female connector and male connector contacts. FIG. 7 is a plan view of the present invention designed to prevent the soldering aid from rising, and FIG. 8 is a perspective view showing an example of application of the present invention to a male contact provided with a fixing protrusion on the side surface. . 1...Female contactor, 1a, 1b...Contact surface, 2...
... Insulation block, 3 ... Male contact, 4 ... Contact part, 4a ... Rough surface in the thickness direction, 4b ... Smooth surface (contact surface), 5 ... Insulation block, 6 ... Fixed part,
7, 7a, 7b...Fixing protrusion, 8...Fixing hole, 9
... Connection part, 10 ... Fixed protrusion.

Claims (1)

[Scope of utility model registration request] It is made by punching out a metal plate, and has a contact part 4 and a fixing part 6.
and an insulating base 5 having a fixing hole 8 into which the male contact 3 is press-fitted and fixed, and the fixing hole 8 of the insulating base 5 is
In a connector formed by press-fitting and fixing the fixing part of the male contact 3, the fixing part 6 of the male contact 3 is formed by punching to be wider than the contact part 4 and the connecting part 9, and the fixing part 6 is A male contact is provided with fixing protrusions 7a and 7b of the same height on both sides, and the distance l ₁ between the vertices of both fixing protrusions 7a and 7b is approximately equal to the width l ₂ of the fixing part, Insulation base 5
A male contact locking structure characterized by being press-fitted into a square fixing hole 8 provided in the male contact.