JPS59101781A - Small-sized electric connector assembly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates generally to connector assemblies for terminating electrical conductors, and more particularly to connector assemblies that can be significantly miniaturized due to contact geometry and contact attachment structure.

Connector assemblies that terminate insulated electrical conductors are
Increasingly trusted in the manufacture of complex electronic and electromechanical devices. For example, in the manufacture of video cameras, where multiple electronic components must be arranged in a preferably compact overall structure, miniature connectors connect printed circuit board assemblies to separate wiring leads from other components. The preferred means for interconnecting the wiring (wire leading) is only one.

To provide such interconnections, printed circuit boards often have generally elongated pin terminals that are electrically connected to conductive circuits defined on the board. Bin terminals are freestanding,
Or it may be part of a preassembled unit, commonly referred to as a wafer.

Connectors suitably shaped for terminating individual insulated electrical conductors to elongated bin terminals typically include a dielectric housing fitted with a plurality of metal contact members. Each contact member selectively receives/receives one of the bottles or 7 of 27
It has a part such as a recessed tackle that selectively fits into one.

Connecting the conductor to the contact may be done in one of several ways. This method is known as the elimination of insulating materials. Removal of the insulating material is achieved by pushing the conductor row-side into the formed slot (K), and the insulating material of the conductor is torn apart in the area of the electrical interface between the edge of the slot and the core of the conductor. This includes that the insulating material is suspended from the

Known connectors that terminate individual wires with pin terminals have inherent drawbacks when used in small circuit component applications.

These shortcomings mainly result from the complexity of known contact structures, and it is difficult to economically implement such structures on a JX scale while ensuring reliable performance in a variety of applications. This mainly comes from the fact that it cannot be manufactured.

Accordingly, it is an object of the present invention to provide an improved electrical connector assembly for connecting individual insulated electrical conductors to pin terminals.

Yet another object is to provide an improved connector contact member that can be easily manufactured in a compact form.

A further object of the present invention is to provide a contact member that can make insulating material-excluding contact with a conductor and connect with a pin terminal in a reconjoint arrangement.

The foregoing objects and advantages as well as other objects and advantages include:
a single contact member having a body portion supporting/paired plates in substantially parallel spaced relation to each other, the plates having a slot, the slots being inserted into the slots; This is achieved by the present invention, which serves to tear and loosen the insulation of the conductor.

The contact member has a bin receiving means including a first pair of resilient spring arms, one spring arm depending from each of the plates, and a second pair of resilient spring arms depending from a portion of the body of the contact member. The pair of enclosing spring arms are in opposing relationship to establish a biased electrical connection with the pin terminal.

The invention will now be further described with reference to the accompanying drawings.

FIG. 1 depicts a circuit component arrangement of a type suitable for use in electromechanical or electronic equipment applications. The device includes a printed circuit board 7.2 on which a plurality of semiconductor or other electronic components (not shown) are mounted.

For selective connection to the printed circuit board /2, the circuit component device IO terminates a wafer assembly, generally designated by the reference numeral /I/l, and a plurality of insulated electrical conductors /g. It further includes a connector assembly, generally designated by the reference numeral .

In order to mechanically and stably connect the connector assembly/B to the printed circuit board/2, the wafer assembly IJ/
The lI- includes a relatively rigid pace member 20 having a plurality of elongated conductive pin terminals extending therethrough. The printed circuit board 7.2 has pin terminals 22 for soldering to a plurality of corresponding circuit/bases 2 defined on the printed circuit board/2.
It has an opening 2≠ for receiving the pin terminal 22 so that it is electrically connected. The wafer assembly /≠ is also adapted to have a latch arm 2g for holding the connector assembly /≠ in a fixed position with respect to the printed circuit board /2.

Connector assembly/B is dielectric housing 30g 30
Each recess 347. A plurality of metal contact members 32 are inserted into the socket.
have. A plurality of openings 3B communicate with a recess 311- along the bottom edge 3g of the housing, and the contact member 3
2 and the pin terminal 22 can be connected to the pin terminal 22.

Referring to FIG. 2, the contact member 32 is shown in the form of a flat stamped blank whose entirety is indicated by the reference numeral ≠0. To facilitate the manufacture and handling of the contact 32, the blank≠0 is provided with a continuous carrier tno having split feed openings that can be used to advance the blank during the stamping and forming process. Contains. break-away, tang 4'
The contact 32 extending from the carrier 4'-2 from Is has a central body portion l/Lg extending on both sides a pair of substantially identical plate portions jO. Each plate portion jO has a chamfered opening for receiving the conductor l♂ so as to establish electrical contact with the conductor /I by tearing away the insulation coating of the insulated conductor /♂. It has a slot j2 with j≠. Each plate portion jO further includes a contact finger jJ cantilevered downward from the bottom edge. The body part of the contact element 3.2 also has a pair of contact fingers jK extending in a T-shape along the bottom edge.

In the third and ≠ cross-sectional views, the contact member 32 is
Shown in a fully formed condition, the plate portion jO
is almost 70 degrees? The portions 11t♂ are bent in direction and are in parallel and spaced apart positions with respect to each other.

The contact fingers jO are formed inside the plate part jO with a slight radius at each end. The contact fingers jg are bent upward with respect to the body part≠b, and each finger jg is formed to have a crown λ. For the retention of the contact element 3.2 in the housing 30, the locking element is stamped out on the outside of one part of the housing.

The inwardly directed tongues 2 are provided to release the deformation of the insulated conductor /g when the conductor /g is inserted into the slot j. A stop g is provided on the body member lI-g and the contact member 32
When the pin terminal 2.2 is inserted into the contact finger X6, excessive movement of the contact finger X6 is restricted.

Looking at FIG. 5, it can be seen that the contact member 32 is inserted into the recess 3≠ of the housing 30. Insulated conductor/
♂ has its longitudinal axis substantially perpendicular to the plate member jO, and the contact member 32
It is terminated with.

The shape of the contact fingers j, jg substantially defines a receptacle, generally indicated by the reference numeral 70, and the receptacle 7Q has a pin terminal 22 slid therein parallel to the conductor 7g. Move and receive. A number of contact points are provided between the pin terminals 2 and 2, respectively by contact fingers.
The end of the crown is defined by the crown and the rounded part.

Specifically referring to FIG. 2, the contacts 32 are:
A sufficient orientation (ori) of the paired contact fingers
It can be seen that the product can be manufactured with almost no wastage of materials due to the Additionally, because relatively few steps are required to form the contact blank into a finished part, the contacts 32 can be easily assembled without the need for complex, elaborate, and expensive machining and fixtures.
Can be typed. For example, connectors according to the invention can be easily formed with chisels having any contact pitch or center gap. It will be appreciated from the cross-sectional view of FIG. 5 that close spacing between the centerline of the bin terminal and the conductor is likewise possible, facilitating a much more compact overall assembly.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a circuit component device showing a connector assembly of the present invention. 2 is a plan view of a terminal blank in which the contact member shown in FIG. 1 may be formed; FIG. FIG. 3 is a front view of the contact member in a fully formed state. Figure 3 is a cross-sectional view of the contact member taken along the line ≠-≠ in Figure 3; FIG. 5 is a side sectional view of the connector assembly 11 shown in FIG. 1. 10...Circuit component device, 7.2...Printed circuit board, /
II-...Wafer assembly, /B...Connector assembly IJ, /f...Insulated conductor, 22...
・Pin terminal, 23...Latch arm, GO...Blank, jO...Plate part, jg, jg...Contact finger. Agent's name: Kawahara 1) - Hoto Isu, :)

Claims (1)

Claims: (1) A unitary electrical contact member for terminating an insulated electrical conductor, the contact member having/pairs of plate portions each having a slot, wherein the slot is located within the slot. the longitudinal axis of the conductor is oriented substantially perpendicular to the plate member when terminated at the contact member; the unitary electrical contact member, the plate member depending from a portion of the plate integrally formed between the plate members, the first finger depending from an edge of the plate member; a second finger depending from one of the plate portions;
and a generally elongated terminal member having a longitudinal axis substantially parallel to the longitudinal axis of the terminated electrical conductor and a second finger disposed in opposed spaced relationship with respect to each other and having a longitudinal axis substantially parallel to the longitudinal axis of the terminated electrical conductor. Said single electrical contact members, characterized in that they jointly provide biased contact. (2. The electrical contact member according to claim 1, characterized in that the second finger is supported like a cantilever in the overall inward direction of the gap between the plate members. The electrical contact member according to claim 1. (3) In the electrical contact member according to claim 1, the first finger has a crown that protrudes to provide a contact point with the terminal member. (4) A single electrical contact member for terminating an insulated electrical conductor, the contact member being disposed within an insulating housing. The receptacle is encased and has l pairs of generally parallel plate portions depending from the central body portion, each plate portion having a slot for receiving an insulated electrical conductor. , wherein the slot is adapted to tear and strain the insulating material of the electrical conductor to establish an electrical connection between the contact member and the electrical conductor; The contact fingers hang down from the edge of the podium member (
The contact fingers of the second pair are supported in a cantilever manner generally outwardly from each other, and the second pair of fingers are in contact with each other in the longitudinal direction of the terminated conductor. said single electrical contact characterized in that said single electrical contact is adapted to jointly provide a receptacle for establishing contact with a generally narrow pin terminal having a longitudinal axis oriented substantially parallel to the axis; Element.