JPH04503587A - shielded right angle header - 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] shielded right angle header Technical field The present invention provides multiple signals for connecting a coaxial electrical cable to a printed circuit board (PCB). Relating to the field of headers having a No. post and a ground post.

Background technology In many industrial and test applications, coaxial signal lines are connected to printed circuit board circuits. It is preferable to supply it in minutes. Comparison of strict electrical signal performance requirements and space constraints This combined with the limited availability of high-quality circuit interconnections from cable to PCB. It was difficult to continue. Such connectors and headers must be small. However, stringent performance requirements arising from high-speed and high-frequency data communications must be met.

Currently, most are designed for bonding small cables to PCBs. Any coaxial cable connector or header is assembled from many parts. However, due to their size and complexity, right angle lugs in particular are difficult to manufacture. It may be difficult, complicated to assemble, or expensive. single coax cable A typical right-angle header for joining a module to a PCB is U.S. Pat. No. 60.244. This right angle header can be interlocked It consists of two right-angled units, one of which has an insulating material inside. It is a right-angled metal shell. In this case, the right-angle pin is located in the center of the insulation and P together with the ground connection pin where the connection pin is stuck to or in contact with the metal shell. protrudes from the surface to be bonded to the CB. It meshes with the right angle unit above. It is desirable to have similar right angle shielded coaxial contacts that can be bonded to the PCB. Connects to a coaxial electrical cable. A slightly similar triaxial cable directly to the PCB A triaxial orthogonal ladder for joining is described in U.S. Pat. No. 4,741,703. It is.

In addition, we also provide a connector for shielded flat coaxial cables that are made up of multiple coaxial cables. Nectar is disclosed in US Patent No. 4.639.053. this connector In this case, the connector housing includes an insulator and a flat cable. Grounding sheet metal springs for contacting the shields of individual cables and A ground metal layer is placed along the inner wall of the housing to form a flat cable as a whole. in direct contact with the shield surrounding the module.

Disclosure of invention The present invention has a plurality of signal connection posts and a plurality of ground connection posts evenly arranged. Includes a shielded right-angle header.

Each signal post is built into thermoplastic insulation and into a shielded metal shell. More covered. Each metal shell is coupled to a ground post. related The shielded isolated signal post and ground post are held together by a plastic shroud. are held together to form a complete header. In other words, between the signal post and the ground post In headers formed from the required number of pairs, the individual signal conductors are Fully screened and tightly spaced under extreme space requirements. This reduces cross-over between signals transmitted through conductors of small dimensions.

This arrangement provides higher signal transmission performance than before, allowing computers, automatic test Performance suitable for test equipment and communication machine signals can be obtained. Manufacturing materials for header parts, Spacing and shape may be changed to achieve impedance matching, or spacing characteristics and The mounting can be modified to adjust its characteristics.

Brief description of the drawing Figure 1 shows signal contacts molded in insulating material with metal shielding posts and ground contact posts. It is a partial perspective view of the header shown in both figures. Figure 2 shows a cross section of the header along a plane parallel to a pair of signal pins and set contact bins. and FIG. 3 shows the header in a plane perpendicular to the signal connection pin and the ground connection pin. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION In the following, the invention will be explained in more detail and more completely with reference to the drawings. Figure 1 shows the header FIG. - row right angle signal connection pin 1 with pin 1 protruding from surface 2. molded or embedded in thermoplastic insulation. surrounding each pin 1 is the insulation material 4, with a gap 5 between each insulating pin and a metal shielding shelf in the gap 5. It can be fitted around each part 4. Connect the right angle ground connection pin 6 to the 2 through the opening 3 and coupled to the shelf.

FIG. 2 shows a thermoplastic insulating shroud 8 molded into an assembly of the parts shown in FIG. FIG. 3 is a cross-sectional view of the header along a later set of ground connection pins 6 and signal connection pins 1;

FIG. 3 shows a metal shielding shelf, molded thermoplastic posts 4 and thermoplastic shroud 8. FIG. 3 is a partial cross-sectional view of the header perpendicular to the connecting pins 1 and 6 through the header; as needed The attachment through the distal end of the shroud 8 provided is also illustrated with an opening 9.

The header connects signal connection pin 1 to thermoplastic polyester polymer, the preferred material. Assemble by molding.

Polyphenylene sulfide, polyamide which is also useful for injection molding and other molding , ateptal, acetylene-butadiene-styrene terpolymer, polytetraph Fluoroethylene, polyvinyl chloride, polypropylene, polyethylene, rubber, etc. Other thermoplastic resins known in the art can also be used.

Shielded metal shelves can be welded, brazed, soldered, or with conductive adhesive. It is coupled to the ground connection pin 6. The shelf is made of beryllium-copper alloy or phosphor bronze. Thin folded sheets are preferred, but copper, copper alloys, and steel sheets are preferred. You may also use a tool. Pins 1 and 6 are also made from beryllium-copper alloy or phosphor bronze. It is preferable to build The ground connection bin 6 is an integral part of the metal sheet that makes up the shelf. It can also be a part. In this case, roll up the flat tab or protrusion into a cylindrical or square shape. The pin 6 can be made to function as the pin 6. gold that sticks to each other A combination of a shelf and pin 6 formed as a unit from a metal sheet. Insert the opening 3 and slot 51 to complete the header. shroud 8, pre-formed J type, si 1, so 1. [Add without heating the bulk of the material] By sonic welding, the pin, shield, contact, and filter are joined together. It can be finished by adding 2 hems to the L. Shroud 8 is made of glass-filled thermoplastic polymer It is preferable to mold from a polymer, and the molding part-4, and the same material. From □, If? , may be shaped.

For many industrial applications, test applications, and test applications, the Coaxial Signal Lysin 2 It is desirable to supply it to circuits and circuit boards. The header □ of the present invention is) a complex component Achieve this in a simple and direct way without any attachments or attachments. : During operation/operation and terminate the connecting pins 1 and 6 protruding from side 2 of the header with female connectors. and connect it to a coaxial cable or flat coaxial cable. header pin Place the opposite ends of pins 1 and 6 under shroud 8 in a standard predetermined pattern. Connect to mating receptacles or openings in the printed circuit board spaced apart to connect the pins. Fit with rings 1 and 6.

Although the preferred embodiments of the present invention have been described above, it will be apparent to those skilled in the art. Other embodiments utilizing the teachings described herein are also claimed. It is within the scope of the invention as described in .

International search report. Fj/I, cO1’l/nn711, international search report

Claims (4)

[Claims] 1. (a) a thermoplastic encapsulated insulator molded body and evenly spaced surrounding it; (b) one or more right-angled conductive metal electrical signal connection pins; , (c) each right-angled conductive metal electrical signal connection pin surrounded by said insulator; (d) a conductive metal shell surrounding each of the metal shells; a right-angled metal ground contact pin associated with each signal connection pin; and (e) a connection pin. by surrounding all sides of said header that are not exposed and joining them together. Thermoplastic shroud forming unitary hole a right angle for connecting an insulated coaxial electrical cable to a printed circuit board, comprising: header. 2. Thermoplastic wood that encapsulates the signal connections and makes up the shroud. Polyester, polyvinyl chloride, polyphenylene sulfide, polyamide , acetal, acetylene-ptadiene-styrene terpolymer, polytetraph Claims comprising fluoroethylene, polypropylene, polyethylene or rubber Header as described in box 1. 3. The ground connection pin, the signal connection pin and the conductive metal shell are made of beryllium. Claimed in claim 1, which is made of Mu copper, phosphor bronze, steel, copper or copper alloy. header. 4. Thermoplastic tree encapsulating the signal connection pins and forming the shroud The resin contains polyester, and the ground connection pin, signal connection pin and conductive silicone Claim 1, wherein the well comprises beryllium-copper alloy or phosphor bronze. header.