JPH0722060Y2 - Connector assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a connector assembly for electrical connection used in an electronic device, and particularly to an excessively large housing for fixing electrical connection pins to an insulating housing. Structure for preventing various stresses.

[Prior Art] Conventionally, a connector assembly of this type is provided with a projection on a pin for electrical connection, and an insulating housing is provided with a hole having a size and a shape to fit the pin and the housing. It was formed by press-fitting into the hole.

[Problems to be Solved] In the above-described conventional connector assembly, when the pin is press-fitted into the housing, the protrusion of the bottle causes damage to the surface of the hole of the housing, particularly the surface of the inlet portion, and the appearance is significantly impaired. In addition, there are drawbacks such as overstress in the housing due to variations in the hole size of the housing and variations in the size of the locking portion of the pin, which causes cracking of the housing due to this. Then, in order to prevent this, it is necessary to control the dimension of the locking portion with high accuracy, which causes a cost increase.

In the future, if the density of the connector is increased, a slight distortion of the pin for electrical connection and the hole of the housing may be accumulated, and the housing itself may be overstressed, which may cause problems such as cracking. Was there.

[Means for Solving the Problems] The connector assembly of the present invention is an insulative housing having a plurality of rectangular holes arranged in one direction, and a locking portion for penetrating the rectangular holes and locking at a predetermined position. A plurality of pins for electrical connection having, and one surface of a locking portion having a rectangular cross section of the bottle on one of the same sides of the facing surfaces parallel to the arrangement direction in each of the rectangular holes, A closely contacting flat surface is formed, and a protrusion deformed and crushed by contact with the other surface of the engaging portion is formed on the other of the facing surfaces along the inserting direction of the pin.

[Operation] Inserting the pin for electrical connection into the hole of the housing,
The locking portion provided on the pin comes into contact with the protrusion protruding into the hole. When it is inserted further as it is, the locking portion of the pin crushes the projection and deforms it. By this deforming force, the pin is locked in a state in which it is inserted into the hole by a predetermined size, and the stress due to the insertion is reduced by the deformation of the protrusion, and it hardly affects the housing itself.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of the present invention. A pin 2 for electrical connection is press-fitted and locked in a hole 4 of an insulative housing 1.

FIG. 2 is a perspective view showing details of the surface of the hole 4 in FIG. The hole 4 is provided with protrusions 3a, 3b extending long in the press-fitting direction of the pin 2 for electrical connection. The protrusions 3a and 3b use members that deform when pressed.

FIG. 3 shows a perspective view when the pin 2 for electrical connection is press-fitted into the hole 4 of FIG. The protrusions 3a, 3b are deformed by pressing the pin 2 for electrical connection into place by crushing the tip portions thereof (fourth
(See FIG. 5). That is, if the pin 2 has a large press-fitting margin and the housing 1 is overstressed, the housing 1 will be cracked. Therefore, in order to reduce the overstress, the protrusions 3a and 3b which are easily deformed are provided. The distortion is reduced.

[Effects of the Invention] As described above, according to the present invention, a protrusion that is easily deformed by press-fitting the electrical connection pin is provided inside the hole having a rectangular cross section of the housing for press-fitting and locking the electrical connection pin. Since it is provided on one side of the square hole, stress due to strain generated in the housing when the electrical connection pin is press-fitted can be reduced, damage such as housing cracking can be prevented, and the hole and electrical connection pin can be locked. The dimensions of the parts do not have to be manufactured very precisely, which can contribute to cost reduction, and the pin surface (pin reference surface) abuts the facing surface (housing reference surface) provided with the above-mentioned protrusions, so that the pin There is an effect that alignment accuracy can be obtained.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view showing the surface of the hole of FIG. 1, and FIG. 3 is a perspective view showing the surface of the hole when a pin is inserted. 4 is a horizontal sectional view of FIG. 2, and FIG. 5 is a horizontal sectional view of FIG. 1: Housing, 2: Pins for electrical connection 3a, 3b: Protrusion, 4: Hole

Claims (1)

[Scope of utility model registration request] 1. An insulative housing having a plurality of rectangular holes arranged in one direction, and a plurality of electrical connection pins having a locking portion penetrating the rectangular holes and locking at a predetermined position. In the provided connector assembly, a flat surface that is in close contact with one surface of the locking portion having the rectangular cross section of the pin is formed on one of the facing surfaces parallel to the arrangement direction in each of the rectangular holes, On the other side, a connector assembly characterized in that a protrusion that is crushed and deformed by contact with the other surface of the locking portion is formed along the inserting direction of the pin.