JPS58147982A - Hybrid circuit connector - 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 This invention relates to a connector for removably connecting a printed circuit board or the like.

The hybrid circuit 1d is usually assembled on a semi-rack substrate, on which various conductors and resistors are printed by silk screen or the like, and an integrated circuit chip is bonded. Such hybrid circuits are typically interconnected to the system via a printed circuit board, and the hybrid circuits are typically attached to the printed circuit board by soldering or via connectors. The above hybrid circuit usually has many lead wires. That is, connections are made by soldering jumper wires to bonding pads that are typically arranged in rows along the edges of the hybrid circuit, or by soldering jumper wires to bonding pads arranged in rows along the edges of the hybrid circuit. The connector is inserted into a socket that includes resilient contacts that make electrical contact with the contacts of the connector arranged in the same manner.

It is known that in very many cases it is preferable to use plug-in hybrid circuits rather than permanently connected or wired hybrid circuits. In the event of a failure or when a new circuit is required, replacing only individual hybrid circuits is much more costly than replacing the entire printed circuit board to which multiple hybrid circuits are connected. Cheap.This replacement is conveniently done with a plug-in connection rather than a wire connection.

Connectors for hybrid circuits that connect along one edge of the hybrid circuit have traditionally been provided5.There are two types of these connectors, and one type that requires force for insertion is the hybrid When the circuit is inserted, the terminals of the connector slide into contact as the hybrid circuit engages the terminals, and in one embodiment, the hybrid circuit is brought into contact after being inserted into the connector, and does not require force for insertion. the above·
- Pressure is applied by the engagement terminal to hold the hybrid circuit in place. In press-fit type connectors, the contact terminals of the hybrid circuit must be thick and strong to withstand being scraped. In both types of connectors, however, the hybrid circuit is oriented at right angles to the printed circuit board. This creates at least two problems.

One is that denser and more complex hybrid circuits often require many more terminals than can be fitted along one edge of the hybrid circuit. To obtain a connection along the opposite edge of the cable, one connector must be manually inserted into the trench at the end of the flexible cable.

One problem is that in systems that use a large number of printed circuit boards, the width of the hybrid circuit must be at least the width of the printed circuit board that protrudes outward from the surface of the printed circuit board.・It is required that there is a gap equal to the height of the hybrid circuit,
For this reason, when the printed circuit boards mentioned above are mounted in a rack, the mounting density cannot be increased.

The present invention is a hybrid circuit connector that facilitates removable mounting of a hybrid circuit in a plane adjacent to and parallel to the plane of a printed circuit board. The features of the connector facilitate automatic connection to the hybrid circuit along at least two opposing edges and, if desired, along at least major portions of the other two opposing edges.

Therefore, the sides of the printed circuit on which components are mounted become thinner, and the mounting density of the printed circuit board in the frame increases. Furthermore, due to the features of the connector, virtually the entire circumference of the hybrid circuit can be used to power connections to the hybrid circuit, with the Supplementary manual wiring to the connectors routed via cables to the circuit board, otherwise required, is eliminated.

The hybrid circuit to be connected to this connector is preferably attached to the land of the corresponding connector pad on the opposite side of the substrate to form an edge terminal on at least one side to which said hybrid circuit is connected. Use a C-shaped clip that is soldered. Since only the short contact length, which is equivalent to the thickness of the hybrid circuit, is in contact with the contact body of the connector, vibration and/or ) It should be noted that the impact moves the substrate. However, if a lever or a pair of levers are used to insert the hybrid circuit into the connector, then once the hybrid circuit is inserted, the hybrid circuit can be reliably brought into contact position. The lever locks in its closed position, while in its open position it clamps the hybrid circuit and rotates the lever to its closed position. 1. Provide a pair of jaws that are moved into the connector to bring the hybrid circuit into contact.

As a result, the connector safely and reliably maintains the connection of the hybrid circuit in a parallel relationship with the surface of the printed circuit board, even during transportation where the hybrid circuit is subjected to shock and vibration. It can be removed from the connector by simply rotating it to its open position. 6 The present invention generally relates to hybrid circuit subsystems 1-1/
- A frame surrounding the area, and...
a plurality of resilient contacts arranged along at least one edge of the frame and extending inwardly of said frame for contacting cooperating contacts along the edges of the substrate of the hybrid circuit; at least one lever pivotally supported by a pin on one side of the frame for pivoting about an axis parallel to the axis of the one edge; It is. The jaw part has a lower jaw part that supports the bottom of the substrate straight, and one side of the lower jaw part has a thickness of the lower jaw part to support the bottom part of the substrate straight. It has a septum\lower cuticle part,
The upper mouth part has an inner tip that faces inward of the frame near the inner surface of one side of the frame when the lever is in a predetermined open position.

When the lever is rotated from the open position to the closed position, the lever or the jaws or jaws arranged oppositely engage the edge or opposing edges of the hybrid substraight, thereby inserting the substraight into the connector. When energized, the substraight engages the contacts of the connector by sliding contact with the cooperating contacts of the hybrid circuit. Once the lever is in its closed position, the cooperating projection of the lever and the cooperating depression suppressor and the side of the frame hold the lever in place, thus preventing vibrations, shocks, etc. The substrate is held in place regardless of the

When the lever or a plurality of levers is rotated to its open position (L), a force acts to disengage the substraight from engagement with the connector and the contact body.

The invention further generally includes a plurality of resilient contacts arranged along at least one side for contacting cooperating contacts arranged along the edges of the substrate of the hybrid circuit. a frame; a device for urging the substrate of the hybrid circuit into the frame so that the contacts along the edges of the hybrid circuit contact the resilient contacts; - a device for locking the connector in its place.

A better understanding of the invention may be obtained by reference to the following detailed description and accompanying drawings.

FIG. 1 shows an end view of a prior art hybrid connector. The integrated circuit is mounted on one side (not shown) with resistors, conductors, etc. by a transparent screen, and the integrated circuit is attached to it.
has. The hybrid substrate is inserted into a connector 3 attached to a printed circuit board 4.

”2 Connector is the contact pad 2 of the substrate.
It has a plurality of elastic contact bodies 5 that are in electrical contact with.

” The second paragraph is free.

It extends perpendicularly to the plane of the lint circuit board 4. Therefore, adjacent printed circuit boards installed in a rack should be placed closer together than at least the width of the hybrid substraight plus its connector area plus some air gap to provide clearance. I can't do it.

In some hybrid substrates, increasing the number of contact points available on the hybrid substrate for connection to circuitry carried thereon;
It has another row of two contact pads arranged on its surface, and another connector 3A comes into contact with this row of contact pads 2A. This connector 3A
are connected to the conductors of the printed circuit board via a bundle of wires 60, which bundle of wires 6 must be soldered to both the connector 3A and the printed circuit board 4.

Wiring of printed circuit boards is often done using automated techniques, whereas the use of wires 6 and connectors 3A often results in manual intervention during wiring. Further, since the wire 6 has slack, the wire 6 may move during transportation of the system and breakage of the wire may occur.

FIG. 2 is a cross-section along line A--A of FIG. 8 illustrating the present invention, shown with a hybrid substray 1-10 held within a suitably sized, square-shaped connector 11. The basic shape of the connector is similar to a picture frame for enclosing the hybrid substrate within the frame.

A plurality of resilient contact bodies 12 are preferably inwardly disposed on opposing inner sides of a pair of said connectors for contacting corresponding contact bodies of said hybrid substrays arranged along opposing edges. The time is maintained. ”
The contacts 12 are fixed to the frame using conventional techniques; FIG. 2 also shows that the contacts 12 pivot about an axis between the sides of the frame of the connector to which they are fixed. A lever 13 is shown, 1 electrically connected to the circuit carried by the substrays 1 and 10.
The C-shaped clips 14 extend around the edges of the bonding pads 15 and out of the bonding pads arranged back to back on the other side thereof. The C-shaped clip is conveniently soldered to the bonding pad. However, in order to prevent the solder from contacting and interfering with the contact body 12 of the connector, the soldering should be marked -1-. This should be done to avoid bleeding along the C-shaped clips at the edges of the substrate.

While the shape of the C-shaped clips attached to the edges of the above-mentioned substraight is rounded to facilitate smooth contact with the contacts 12 of the connector, these C-shaped clips are In order to make maximum surface contact with the contact body of the connector, it is preferable that the connector has a flat shape along the edge of the substrate or a shape that matches the contact body of the connector.

In the prototype system, a C-shaped clip made of phosphor bronze coated with a thin lead solder surface was used as the contact member for the hybrid substrate described in -. 2 is a partial and full cross-section of the invention taken along line Y--Y in the figure, viewed at right angles to FIG. is illustrated. A lever 16 is pivotally pin supported by a pin 17 in a groove in the side of the connector (preferably two similar levers are used on opposite sides of the frame). id, the lever 16 is shown in the open position.The seat portion 18 of the lever has a portion that is parallel to the surface of the printed circuit board 4 and abuts on it in the fully open position. It should be noted that in this position, the jaws of the lever have a lower jaw part 19 that is at the level of the top of the frame and projects inwardly of the frame, on which the lower jaw part is located. The upper cut part 20 is placed on the lower cut part 19 in order to pass through the edge of the substrate 10 to avoid interference when the substrate 10 is placed on the lower cut part 19. , which protrudes slightly into the frame 1'111I relative to the inner edge of the frame of the substrate 1. In FIG. The upper mouth part 20 comes into contact with the upper surface of the hybrid substrate 10 when the lever 16 rotates around the pin 17. At the same time, the edge of the substrate 10 is surrounded by the jaw part of the lever 16.

FIG. 5 shows two opposing levers 16 in their closed positions. The substrate 10 is again in the same position as shown in FIG.
The figure is a 90° cross-sectional view with respect to FIG. Accordingly, the connector contacts along the left and right edges of substrate 10 in FIG. 5 are not shown. However, it should be noted that the contact body can be used on either or both sides of the lever. The bottom part of the substrate rests on the lower mouth part of the lever, and the lower dorsal part 21 extending across the connector to both sides thereof has an upper surface at the same height as the lower mouth part. and are arranged to support the substrate along opposite sides.

If additional connector contacts are used along the lever-engaging sides, struts or other supports can be used rather than the back section 21 described above.

When the lever 16 is rotated to its open position in order to remove the substrate, the lower mouth part 19 pushes the bottom of the substrate upwards, so that it is spring-struck by the contacts of the connector in the connector. The substrate, which was crimped and fixed, is removed.

Note that if only a single lever is used, a suitable slot is formed along the inner side of one of the frames of the connector above to fit and retain the edges of the two-piece substrate. Should. A single lever is then used to lock the substrate in place by inserting the other side into the slot. A two-lever embodiment is preferred in order to avoid lateral movements such as occur between adjacent connectors and contacts of the hybrid circuit when the hybrid substrate is initially inserted into the slot. .

The lever is locked in the closed position to ensure that the substrate comes into contact with the contact body of the connector even if there is vibration or the like. According to a preferred form of locking, each lever has a projection or ridge 22 on each side thereof, which ridges act on the connector when the lever is pivoted from the open position to the closed position. have sufficient d] to replace/match the adjacent edges on the sides.

The details are shown in FIGS. 6 and 7, with the lever 16 being open in FIG. 6 and closed in FIG. Adjacent edges on the sides of the connector include slots immediately adjacent the lever and into which the opposing protrusions or ridges cooperatively fit when the lever is in the closed position. . Therefore, each lever 16
When pivoted from its open position to its closed position, said lever 16 first encounters interference with the edge adjacent to the corresponding side on which it is pin-supported.

Once the lever 16 reaches the closed position, the raised portion 2
2 fits into the slot 23, thereby holding the lever in place. The vibrations of the substrate 10 applied to the lever 16 are insufficient to overcome the mechanical advantage due to the position of the lever 16, and therefore the lever 1
6 was found to hold the substrate in place. In the prototype, for example, even if a 317 shock is applied to any surface perpendicular to each other, the impact will be 5 to 1 at 0.5 g.
Even if a vibration of 00 hertz and a vibration of 100 to 500 hertz are applied at 15g, the above-mentioned Zabs!・There was no change in rate.

Preferably, one course of each Zabus J rate is taken while corresponding keys are used in the corners of the connector for use in aligning and orienting the hybrid substrate during installation.

In operation, the lever 16 is opened to its maximum position when the seat 18 of the lever 16 rests on the printed circuit board to which the connector is fixed. -Above...
The hybrid circuit is properly oriented and placed parallel to the two connectors, and is supported by the lower mouth of the lever. The levers are then pivoted towards their closed position, thereby causing the hybrid circuit to engage the connector.

The lever is held at the position marked -1-, and the slot 23
The protrusions 22 engaged effectively lock the substrate in place.

Modifications and other embodiments of the invention may be devised by those skilled in the art using the principles described above.

All of these are considered to be within the scope of the invention as defined by the appended claims.

[Brief explanation of the drawing]

Figure 1 (12) is a partial cross-sectional view of a conventional hybrid circuit connector; Figure 2 is a cross-sectional view of an embodiment of a hybrid circuit connector according to the present invention; Figures 3, 4, and 5 are Figure 6 is a partial, partial and full cross-sectional view of the invention taken respectively along an axis perpendicular to the cut plane of Figure 2, showing the lever in fully open, half open and fully closed positions; 7 is a detailed view of the lever in the closed position; FIG. 8 is a perspective view of the invention. 1. Substrate, 2.2A Connector Pad, 3.
3A connector, 4 printed circuit board, 5 elastic contact, 6 wire, 10 substraight 11 connector,
12・Elastic contact body, 13 Lever, Z-C shaped clip,
15 Ponding pad, 16 Lever, 17 Pin, 18 Seat part, 19 Lower cutibil part, 20 Upper cutibil part, 21 Back part, 22 Protrusion (protrusion), 23 Slot. C3) Procedural Amendment (September 30, 1988 Patent Application No. 86393 2 Name of Invention Hybrid Circuit Connector 3 Relationship with the Amendment Case Name of Patent Applicant Mittel Corporation Nationality Canadian Country 4 Agent address Honmachi Hill, 2-10 Honmachi, Higashi-ku, Osaka-shi, Osaka -
−=? −

Claims (8)

[Claims] (1) (a) a frame surrounding the substrate of the hybrid circuit; and (b) a frame for making contact with cooperating contacts arranged along an edge of the substrate of the hybrid circuit; (c) a plurality of resilient contacts arranged along at least one inner side of the frame; and (c) rotating within a slot in the side of the frame for rotation about an axis parallel to the axis of the rear side. at least one lever movably supported by a pin, the lever having a jaw extending inwardly of the frame, the jaw having a lower mouth for supporting the bottom of the substrate; A raised mouth part is provided above the lower cut part and is spaced apart by the thickness of the substrate in order to engage the substrate therebetween.This upper cut part is preset by the lever. a lever having an inwardly directed tip toward the interior of the frame near an inner surface of the rear side of the frame when in the open position. (2) When the lever is in the open position, the lever includes a plane that is parallel to the bottom of the rear side of the frame, and by mounting the frame on a support surface, the lever can be opened further than the open position. The hybrid circuit connector according to claim 1, wherein rotation is prohibited. (3) said lever includes at least one protrusion on a corresponding side adapted to interfere with an adjacent portion of said rear side of the frame when pivoted from its open position, said adjacent portion being said The edges of said sides have inwardly recessed areas to accommodate the protrusions, and upon rotation of the lever from the open position to the closed position, the protrusions first cause interference in step 1 and then recess above. The lever according to claim 2, surrounded by a four-part region, wherein said lever is substantially held in the closed position with its lower mouth being at the level of the bottom of said frame. circuit connector. (4) a substray 1 of the hybrid circuit and a plurality of electrically conductive lands including said cooperating contacts arranged along at least one edge thereof; A plurality of C-shaped clips extending from the - side to the other side and each electrically connected to a corresponding land, the positions and intervals of these C-shaped clips corresponding to the positions and intervals of the plurality of contact bodies. 4. The chair according to claim 1, further comprising a C-shaped clip. The hybrid circuit connector described in... (5) A substrate of a hybrid circuit, and a plurality of metal lands arranged on opposite sides of said substrate along at least one edge thereof, wherein the lands on at least one side are in contact with said cooperative contact. in contact with the body,
A pair of lands is defined as two lands arranged at opposite positions on opposite sides of a substrate and opposite opposite ends each coupled to make electrical contact with the opposite land of the pair. and a plurality of C-shaped clips extending around the edges of the substrate,
The hybrid circuit connector according to any one of claims 1 to 3, including clips whose positions and intervals correspond to positions and intervals of the plurality of contact bodies. (6) A substrate of a hybrid circuit and a plurality of metal lands arranged on opposite sides of the substratum along at least one edge thereof, the lands on at least one side surface; includes said cooperating contact portion, said pairs of lands having lands located at opposite positions on opposite sides of said substrate, and opposite ends thereof each being soldered to a pair of opposing lands. and - a plurality of C-shaped clips arranged around the edges of said substrate, the positions and spacings of said clips Δ corresponding to the positions and spacings of said plurality of contact bodies. A connector for a hybrid circuit according to any one of claims 1 to 3. (7) (a) a frame surrounding the substraight of the hybrid circuit; and (b) for contacting cooperating contact bodies arranged along the edges of the substraight of the hybrid circuit.''1
(C) a plurality of resilient contacts arranged along at least one interior side of said frame; A connector for a hybrid circuit comprising: means for bringing a contact into contact with said resilient contact; and (a) - means for locking said substraight in its position by a frame. (8) The hybrid circuit connector according to claim 7, wherein the biasing means includes at least one lever.