JPH0272573A - Electric connector and bus bar for it - Google Patents

Abstract

PURPOSE: To deliver power and signals from the master substrate to the slave substrate of a connector assembly by providing the connector assembly with a rear face connector for a master substrate, a signal connector for a slave substrate and a power connector for a slave substrate. CONSTITUTION: A connector assembly includes a rear face connector assembly 50 which comprises a rear face connector 100 for a main substrate, a signal connector 200 for a slave substrate and a power connector 300 for a slave substrate. The slave substrate signal connector 200 and the slave substrate power connector 300 are connected to both a main substrate 2 and a slave substrate 10 for signal and power distribution. The connector assembly is used in the condition that the impedance of a signal transmitted through it matches the impedance of equipment employing the rear face connector. Both power and signals are thus delivered from the main substrate to the slave substrate with the impedance being controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to a rear connector assembly comprising a printed circuit board connector, the printed circuit board connector extending perpendicularly to the parent board. In addition to being able to fit into a connector attached to a child board, it also delivers both power and signals from the parent board to the child board while controlling impedance.

BACKGROUND OF THE INVENTION Traditionally, backside systems consisting of a backside or parent board to which multiple orthogonally oriented daughter boards are connected have employed a plurality of connectors to connect the single parent board or backside to the backside. Both current and power are distributed to multiple child boards. Both the parent board and the daughter board are
It generally requires a large number of conductive layers to be employed on a printed circuit board, and it is quite common for the parent board to be a multilayer printed circuit board. In either case, in order to make the necessary interconnections between the parent board and the daughter board,
A large number of both signal and power contacts are commonly employed.

U.S. Pat. No. 4,855,518 discloses a rear-to-child board connector in which a two-part connector assembly is used to interconnect corresponding traces on the mother board and the daughter board. Solids are used. The connector assembly used to interconnect the parent board to individual independent daughter boards consists of two part members, each part having a plastic housing having a plurality of rows of contacts. . The contacts in one connector have receptacle portions for mating with the vias in the other connector. The connector also employs a grounding shield on both connector halves. The commercial version of this type of connector also uses specially prepared power tuning fork-like contacts placed at the end of the connector module (unit structure).
Power is delivered from the parent board. These tuning fork contacts in the daughter connector interface with bus vanes, which in turn interface with the rear or inner layer of the daughter board for low power applications. and is bordered by an external bus bar for high power operation.

This type of connector also employs multiple rows of signal contacts. In one embodiment, four rows of signal contacts are employed. A ground plane is required so that the impedance of the signal interconnect remains within a predetermined range. U.S. Pat. No. 4,855,518 discloses one such connector assembly consisting of a rear-to-board connector that includes a row of signal bins and an insulating housing. A layer grounding bus bar is provided on one side of the row of signal bins buried in the wall.

U.S. Pat. No. 4,818,893 discloses a connector having a ground busbar located between two rows of signal contacts. This connector is used to interconnect multiple parallel printed circuit boards.

U.S. Pat. No. 4,755,145 discloses an assembly in which a plurality of daughter boards are removably mounted on the rear surface and have contacts on the daughter boards that mate with contact portions on the bus bar. electrically connected to the bus bar on the same side of the rear surface through the bus bar.

SUMMARY OF THE INVENTION The present invention provides a connector assembly for interconnecting signals, power, and ground between a daughter board and a parent board to form a rear connector assembly. do. The assembly is suitable for delivering power to individual daughter boards at any point along the mating edge of the daughter board, and is not limited to delivering power at a single location on the daughter board. Additionally, the connector assembly is suitable for use in rear assemblies employing multiple daughter boards having different thicknesses.

This is because precise alignment of the power terminal interconnections is not required.

SUMMARY OF THE INVENTION The elements of a multi-core assembly used to interconnect corresponding traces on a parent board and a daughter board include a signal connector for the parent board and a signal connector for the daughter board. It includes a signal connector, a plurality of parent board power terminals, and a plurality of slave board power terminals. The parent board signal connector includes a housing and a plurality of signal terminals.

The parent board signal connector includes a plurality of signal terminals located within the housing. The parent board signal connector and the child board signal connector can be fitted to each other. The power terminals for the mother board and the daughter board are oriented perpendicular to the daughter board when the mother board and the daughter board are mated together. Separate power terminals attached or separate ground busbars can be employed to deliver power to the daughter board. However, precise alignment is not required between the power terminals for the parent board and the power terminals for the daughter board.

In a preferred embodiment of the present invention, the motherboard power terminals are located within the same housing as the motherboard signal terminals, but near the opposite edge. The mother board signal terminal is arranged in another housing on the opposite side of the daughter board, which is far from the daughter board signal housing and the daughter board signal terminal. The power terminals for the daughter board and the power terminals for the mother board are arranged perpendicular to the plane of the daughter board, and precise alignment in a direction perpendicular to the daughter board is not required.

Therefore, the same topology can be used for daughter boards with different thicknesses.

Preferred embodiments of the present invention will be described below with reference to the drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A rear connector assembly with a preferred embodiment of the present invention provides an interconnect between two orthogonal printed circuit boards employed in a rear assembly used in a computer or similar electronic device. is intended to be created. The connector assembly with the preferred embodiment of the invention is intended to connect both power and signals to both boards. The connector assembly includes a rear connector assembly 50, which includes a rear connector 100 for a parent board, a signal connector for a daughter board, and a power connector for a daughter board 200 and 300, respectively. The daughter board signal connectors and daughter board power connectors 200 and 300 are used for signal interconnection and power interconnection both to the parent board 2 and to one or more daughter boards IO. This is for making connections.

This connector assembly is suitable for use with multiple signal contacts spaced apart from each other by a distance of 0.050 inches and delivers 5 amps to both the parent board 2 and the daughter board IO. It can be employed using power contacts intended for use.

Another connector 400 may be employed to connect signal circuit conductors to the motherboard 2 and to the rear signal connectors used on the motherboard 2. A preferred embodiment of this invention is a coaxial signal connector 400 for a parent board.
is adopted. However, it should be understood that more traditional means of connecting the signal conductors to the parent board 2 may be employed. For example, individual signal wires may be brazed or wrapped directly onto the bins employed in the assembly. Power is also delivered to both the parent board 2 and the daughter board IO also employed in this assembly. In one embodiment, a plurality of separate power connectors are employed, one of which is part of the rear connector 100 for the mother board, and one of which is a connector attached to the daughter board. It is 300.

The connector assembly with the preferred embodiment of the invention described herein carries both power and signals to a rear assembly consisting of one parent board 2 and one or more daughter boards 10. In addition to being delivered, the connector assembly may also be employed in such a way that the impedance of the signal transmitted through the connector assembly matches the impedance of the equipment using the rear connector assembly. can. For example, the preferred embodiment of the invention is intended for use in a rear connector assembly requiring a controlled impedance of 75 ohms.

The individual components of this connector assembly will now be individually described in more detail.

Signal manual coaxial connector for parent board (see Figures 1, 4A and 4B) The coaxial connector 400 employed to connect the signal conductor 410 to the parent board 2 is made of a material such as Ryton. It is composed of a housing 402. This housing 402 has a plurality of openings 404. Each opening 404 has a signal receptacle contact 40B.
, or accepts a grounding bin 408 for braided contacts. The signal receptacle 406 is a conventional coaxial cable 410.
The ground pin 408 can be crimped to the center conductor of the center signal conductor 412, and the grounding pin 408 can be cannulated to an outer braid 414 surrounding the center signal conductor 412. The coaxial connector also has a ground plane 420 formed of electrically conductive material. The ground plane 420 has a plurality of resilient contact openings 424. These contact openings 424 are formed by a plurality of orthogonal slits 426, and the slits 426 are arranged in the conductive plate 4.
It is cut into 24. The coaxial conductor braided material 414
The grounding pins 408 attached to the signal receptacle contacts 406 project upwardly so that the grounding pins 418 can be inserted into these contact openings 424, thereby allowing the orthogonal An open tongue 428 formed by slit 42B can be engaged. The ground plane (plate) 420 also has a plurality of circular holes 422 that are aligned with the receptacle contacts 40B. However, receptacle contact 406 does not penetrate the circular opening 422 formed in ground plane 420. Next, the ground plane 420 is
It is embedded within an insulating housing 402 of a coaxial connector 400. The shape of the circular opening 422 in the ground plane is provided to correspond to the shape of the pin 11B in the rear connector 100 for the mother board, and is the same as the opening in the mother board 2 into which these pins 11θ are inserted. It has the shape of Accordingly, the ground plane 420 is connected to the individual coaxial conductors 408
All of the braided material 414 is connected to the rear connector 100 for the mother board.
In this case, the signal conductor 412 or the signal receptacle contact 406 is not short-circuited.

Mother board rear connector (signal area) (see Figures 1 to 3) The mother board rear connector 100 has a plurality of signal contacts 104 and a ground plane contact or ground bus 10B, each of which is mounted within an insulative housing 102 formed from a material such as Ryton. This insulating housing 102 has a base 10
g, through which both the signal contacts 104 and the ground bus bar 106 passed, and the insulating housing 102 extended laterally and upwardly! 2t
This wall 110 has a rear connector 1 for the mother board.
Along the upper side of 00, a cavity 112 is formed. Each signal contact 104 has an upper section 114 and a lower section 11
It is in the form of a pin with B. Pin 10 for each signal
The lower section tte of 4 includes a spring contact 118 configured to interconnect with a plated through-hole in the printed circuit motherboard 2 . However, the lower area 11 of the signal contact (bin) 104
It should be understood that B may have other shapes, such as the shape of a conventional soldering bottle.

The lower section 116 of each signal pin contact 104 has a barb 1
20, the reverse spine 120 connects the signal contact pin 104 to the insulating housing 10 of the rear connector 100 for the mother board.
It is for fixing within the lower foundation 108 of No. 2. The lower section 116 of each signal bin contact 104 is offset from the upper bin section 114 by a central bend 122 , the bend 122 being located on top of the foundation 108 .

Since the bin area 114 and the lower bin area 11B can protrude from different parts of the bent portion 122, the signal contact pin 104 has a plurality of areas 114 arranged in one row, and the lower pin area 11G. They can be formed eccentrically or staggered.

The four rows of lower contact bins 116 are formed with lower pin areas 11B in adjacent rows spaced apart by a distance of o, too inches from each other. However, the top contact bin areas 114 are all 0.05 in a single row.
Note that they are spaced apart by a spacing of 0 inches. Therefore, the contact bin areas 114 may be closely spaced from each other, while the lower areas 116 may be spaced apart from each other by a distance that facilitates the fabrication of the conductive layer on the printed circuit motherboard 2. can.

The ground bus bar 106 is located between the inner and outer rows 104A and 1048 of the signal contact pins 104,
It also has a plurality of depending legs 124, the forces 124 being of a type suitable for making resilient contact with the plated through holes 6 in the printed circuit motherboard 2. Since these spring-like contacts 12B have the signal contact pins 104, they can be replaced with a bottle shape that is soldered into a through hole. A single ground bus bar 10B formed in the mother board rear connector 100 extends laterally along the length of the base 108, and is connected to a cavity 1 formed on the upper side of the insulating housing 102.
It protrudes upward into the middle of 12. A plurality of posts (bins) 128 are spaced apart from each other by a distance of o, too inches.
It protrudes upward from the top of the ground plane contact or bus bar 10B. The width of these bins 128 is equal to the width of the ground plane bus bar 10B. Area area 13
2 between the plurality of adjacent upright columns 128, the bus bar 106
is formed on the upper edge of the In the mother board rear connector 100, the plurality of signal contact pins 114 are
They are shaped to be equally spaced from the ground busbar 106. However, the lower signal contact sections 116 are spaced different distances from the ground plane leg 124.

Daughter Board Rear Panel Signal Connector (See Figures 1 and 10-13) The daughter board rear panel signal connector 200 has an insulative housing 202 made of a material such as Ryton. and a plurality of signal and ground contacts 204 and 206, respectively, disposed within. Each of the signal contacts 204 has a box-type receptacle 208 similar to receptacle 406 within the coaxial connector 400. Each of the signal contacts 204 is connected to the receptacle contact portion 2.
It has a signal contact leg 210 extending at right angles to 08. The length of the upper part of the signal bin 114 in the rear connector 100 for the mother board is longer than the length of the upper row 104B of the ground plane bus bar 10B than the row 104A on the inner side of the ground plane bus bar 106. In contrast, since the receptacle contacts 208 are longer, the receptacle contacts 208 are not located at the same height. Each leg 210 protruding from the receptacle part of the signal contact for the daughter board is in the same shape as the lower signal area 11B of the contact 104 making an interconnection with the trace (conductive printed path) on the mother board 2; They are arranged alternately.

Instead of a single continuous ground plane in the daughter board signal connector 200, a plurality of ground vanes 206 are arranged between the plurality of signal legs 210 with maximum spacing. Each vane 20B and corresponding receptacle 208 has a central section 214 that has a vertically extending lower section or arm 21B that extends from the outermost row. It extends between the receptacle portions 208b of the signal contacts located at. The arm 21B extending in the vertical direction of this blade has a spring-like contact 218 that is split into two, and this spring-like contact 2
18 is disposed at the lower end of the arm 21B and is suitable for making resilient contact with the base of the ground plane bus bar 10B in the mother board connector 100. 20 blades each
The central area 214 of 6 is the innermost receptacle 208
extending above and comprising a horizontal arm section 220 which extends above the outermost receptacle contact 20
8b extends adjacent to the right angle portion of leg 210. These grounding vanes 206 are relatively arranged only between the daughter board signal contacts 208b, which have a plurality of legs spaced apart over a greater distance than the narrower spaced contacts. . Each grounding vane 206 has six legs 218.
Note that the book is surrounded by mutually equally spaced contact legs 210 which are arranged in a hexagonal manner and surround each ground vane force 216.

When each grounding blade 20B is fitted into the grounding plane 10B of the mother board connector 100, it extends between a plurality of adjacent columns 128 that protrude upward. The shape of the grounding vane and the shape of the grounding post form a spacing between the signal contacts 204 and the arm, thereby allowing the rear connector 100 for the mother board and the signal connector 200 for the daughter board to Note that a constant impedance is maintained for the signals transmitted through the rear connector assembly.

The daughter board signal housing 202 includes a base 222;
A multi-section insulated member comprising at least one cap member 224 is provided. In a preferred embodiment of the invention, a single base member 222 is employed;
A plurality of juxtaposed cap members 224 can then be secured to the single base member 222. The base member 222 has two rows of cavities 22B for receiving a single contact. The cavities 22B in each row are spaced apart from each other by a small distance. In a preferred embodiment of the invention, this spacing is 0.050 inches between the centerlines of adjacent cavities 22G. These cavities 22B
The top of each is dimensioned to receive a receptacle portion 208 of each signal contact 204 .

The upper surface of the insulating base member 222 has a stepped shape, with one step of the signal receptacle cavities 226A disposed along the lower step 228 and the other step of the cavities 226B.
Extending inwardly into the upper surface 232 of the upper step 230. The lower step 228 of the base member 222 has grooves 236 that extend to the front face 238 and are connected to cavities 226A in alternating rows 244 that extend across the upper surface 234 of the lower step 22B. It's communicating. A support base 240 includes a plurality of cavities 226 in alternating rows 244.
A and the front surface 238 of the base 222.

On the upper step 230, from the upper surface to the lower surface of the base 222, other cavities 226B in alternating rows 246
A groove 242 in communication with is disposed near the plurality of cavities 226A in the plurality of rows 244 and extends to the edge of the upper step 230. Between the groove 242 and other alternating adjacent cavities 246 extending to the upper step 210 are crests 248 that extend upwardly from the upper surface 232 of the upper step 230. Extending. Each of these crests 248 has a crest groove 252 extending along the top thereof from its corresponding cavity to the front face of the upper step 230 . A plurality of pores 252 extend from the lower surface of the base 222 in alignment with the apex 248 disposed along the upper step 230. These pores 252 are aligned with the top portion 248 and adjacent to a plurality of other pores 254, which pores 254 are
A plurality of adjacent or alternating grooves 242 in the upper step 230 extend through the lower surface of the base 222 .

A plurality of signal contacts 204 are mounted from the upper surface of the base 222 into each of the aligned signal cavities 228 . The contact legs 210 of each signal contact 204 in the row of signal cavities along the lower step 228 are then folded onto the base 240 or between adjacent bases 240.

A plurality of grounding vanes 20B extend from the upper surface of the base 222 to
It is similarly inserted into the pore 254 communicating with the base 222 . Lower section 21 of each grounding vane 20B
6 is inserted into the corresponding pore 254 and the central area 21
4 and the upper section 220 form the upper step 230 of the base 222.
extends above. The rear signal contact 204, which is longer than the front signal contact 204, is located on the upper surface 2 of the upper stage 230.
32 through a suitable signal cavity 22 in the upper stage 230.
It is inserted into B. Next, these rear signal contacts 20
4 and aligned with the apex 248 are folded into the apex groove 250 formed along the upper surface of the apex 248 so that these alternating rear signal contacts The legs 210 of 204 extend approximately parallel to the legs of the front signal contact 204 that were previously inserted into the base 222 .

After the signal contacts 204 have been inserted into the insulative base 222, one or more cap members 224 are attached to the top surface of the insulative base 222. In a preferred embodiment of the invention, multiple cap members 224 are employed, thus providing access to individual contacts for repairability. Each cap member 224 is connected to the cap member 22
It has a plurality of recesses 258 that communicate with the front surface of 4. Alternating recesses 258a extend from top surface 260 to bottom surface 26.
2 completely passes through cap member 224 and communicates with front face 264 . These first mentioned recesses 25
8a are a pair of recesses 258b and 258c, one of which, 258b, is located near the front surface 28.
4 and communicates with the upper surface 260 toward the rear,
In this case, a groove 266 is formed downward from the recess 258b toward the bottom surface 262 of the cap member 224.

The other of these pairs of recesses 25g'c extends inwardly from the front face 264 and is spaced from the upper surface of the cap member 224 by an inner rib 28B.

Note that the contour of the inner rib 268 is completely complementary to the top of the grounding vane 20B. Front 264
along the entire length of the top surface 28G and the bottom surface 262
The recesses 258a and 258b communicating with each other are
They have expansion steps 270 at their lower edges. When the cap member 224 is installed on the base 222,
This expansion stage 270 fits onto the base 240 on the upper surface 234 of the lower stage 22B of the base 222, thereby restraining the bent lead body between the base 240 and the recess 258c. . Upper lead body (leg) of rear contact 204b
210 initially extends straight upward from the receptacle 208B. However, the upper part of the recess 258b is open, and therefore the straight lead body 21
0 is bent downwards by a tool insertable into the upper recess 258b, so that the lead body is bent downwardly by the other lead body 210 extending towards the daughter board IO. It is then bent at right angles so that it is parallel. The top of the grounding vane 206 is seated within a complementary recess 272 formed below the inner rib 268, with the
The grounding blade lead body 220 for the daughter board is attached to the cap member 22
Projects outward from the front surface 264 of 4. In this way,
The slave board signal contact 204 and the slave board grounding blade 20
6 and the child board housing 202 can be assembled. a ground vane pore 252 completely extending through the insulative base 222 (2) and aligned with the upper crest 248;
A pore 252 extending upwardly from the lower surface of the insulating base 222 near the ground plane bus bar 1 forms a comb in the signal portion of the rear mother board connector 100.
Note that it is dimensioned to receive an upright post 128 on the 06.

Mother board rear connector (power area) (see Figures 1 to 3) In a preferred embodiment of the present invention, the mother board rear connector 100 includes a power area that is integrated with the mother board signal connector area. There is. This rear insulating housing (connector) 100 for the parent board is connected to the signal pin 10.
4 and the ground bus bin 124, the power zone 134 includes a plurality of pockets 1 for receiving male power vanes 136.
42 and an aperture 144 for receiving a through-hole leg 138. Legs 138 for multiple through holes
is 1. Projecting from each power vane 13B is located in a pocket 142 on the top of the power section 134 of the insulative housing. The plurality of legs 138 are configured to conduct power from the power traces on the parent board 2 to a single vane placed at right angles to the daughter board 10.
Prepare sufficient cross-sectional area. Each leg 13B has an integral resilient spring section 140 for contacting a plated through hole 8 in the parent board 2.

Daughter Board Power Connector (See Figures 1 and 2) The daughter board power connector 300 is completely separated from the daughter board signal connector 200. The daughter board power connector 800 includes a housing 302 that includes a plurality of juxtaposed cavities 304;
Each of the cavities 304 receives a single daughter board power contact 306 that is surface-mounted through the pad 12 for power traces within the daughter board 10. It is done.

Individual power contacts 30 in the daughter board power connector 300
B each have a double U-shaped contact leg 308 , which projects downwardly and is arranged at right angles to the daughter board 10 . Each U-shaped leg 308 is resilient and adapted to receive a single vane that delivers power from the parent board 2.

The power vane for the parent board is the progressive power contact 300 for the daughter board.
Note that the width of the parent board power vanes is set such that contact can still be achieved even if mated at different lateral positions.

Therefore, the shape of the power vane does not require the use of a daughter board IO with a particular thickness. The elastic spring-like legs 808 in the daughter board receptacle contact 30B are
Projecting downwardly from the box-shaped area 310 of the punched power contact 306. The surface-mounted legs 31.2 have a reversely bent shape, and the box-shaped area 310
extends perpendicularly to.

(See FIGS. 14-18) The power section of the housing of the mother board rear connector 100 comprises an integral part thereof. The continuous groove 150 is
It extends along the entire length of the rear connector 100 for the mother board. This groove i50 is formed by an outer wall 152, which is part of the housing of the connector 100, and a parallel inner wall 154, which is located near the lower edge of the daughter board 10. A stacked bus bar 500 is positioned within the groove 150 between the outer wall 152 and the inner wall 154.

The stacked power busbars 500 include a series of individual busbars 502A-D housed within an insulative housing 504. Each of the busbars 502 is made from a conductive metal, such as a conventional conductive copper alloy. In the preferred embodiment of the invention there are four busbars, two of which deliver power at different voltages, while the other two are maintained at ground potential. The four busbars 502A-D are parallel to each other and all partially encased within conventional insulating material. This insulating material protects the partially encased portion of the busbar. Each of the generatrix lines 502 has a plurality of contact projecting pieces 50B that are bent at right angles to the generatrix line 502 and protrude upward. In a preferred embodiment of the invention, the width of the protruding piece 50B is approximately equal to the width of the stacked power bus bar 500. The height of the grounding protrusion may be higher than the height of the power protrusion 50B, so that the grounding prong can make contact first and separate last.

Each protrusion 506 extends across the other three generatrixes, so the protrusions 50B are arranged in juxtaposition, and each protrusion 50
6 and interconnect portions 508 between each busbar 502 are staggered along the length of the ground busbar 500. A notch separates a portion of each lug from the interconnection portion. Next, each protrusion 506 is configured to fit into a contact 308 or 308' of the female power contacts for the daughter board.
It will be located in a predetermined position. Moreover, the protruding piece 50B
will be oriented at right angles to the daughter board 10.

Each power busbar 502 includes an integral leg 510;
includes means for attaching each bus bar 502 to an outer conductor 512. In one embodiment described here, the outer conductor 512 is made of a wire that is an external member to the parent board 2. Therefore, there is no need for power traces to be incorporated into the mother board 2.

In this embodiment shown, the force 510 has threaded holes that allow threaded terminations to be made between the wires and each of the busbars 502. It goes without saying that other conventional external conductors and other conventional termination means may be readily employed, and the bus bar may be attached directly to the parent board as shown in this example. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of a rear connector assembly according to the present invention, which includes a rear connector for a parent board, a signal connector for a daughter board, a power connector for a daughter board, and a coaxial input connector. , all of these are connected to one parent board and one
FIG. 3 is a perspective view of the rear connector assembly that can be assembled to two daughter boards. FIG. 2 is an exploded perspective view of the mother board connector positioned so as to fit the daughter board power connector and the daughter board signal connector. FIG. 3 is a perspective view of the rear connector for the mother board. Figures 4A and 4B show that the signal contacts and grounding contacts for the parent board and the contacts for the daughter board are located adjacent to each other, and also show the coaxial input contacts and the ground plane for the coaxial input connector. It is an exploded perspective view. Figures 5 to 8 are 5-5, 6-6, and 7 in Figure 3.
-7 and 8-8 cross-sectional views showing the positions of the grounding contacts and signal contacts in the mother board rear connector and the slave board signal connector; It is. FIG. 9 is a sectional view similar to FIG. 8, but is a sectional view showing a fitted state of the rear connector for the mother board and the signal connector for the child board. FIG. 1O is an exploded perspective view, partially in cross section, showing the insulating housing of the signal connector for the slave board. 11 to 13 are a series of sectional views showing the assembly of the signal connector for the slave board. 11A to 13A are cross-sectional views taken along line A-A in FIG. 1O. FIGS. 11B to 11B are cross-sectional views taken substantially along the line B-B of FIG. 1θ, which is parallel to the line A-A. FIG. 14A and FIG. 14B are perspective views showing the power connector for the child board just before being fitted into the stacked power bus bar. FIG. 15 is an exploded perspective view showing how the stacked bus bar is positioned within the parent board housing. FIG. 16 is a perspective view of the bus bar with insulation removed. FIG. 17 is a perspective view of the side independent generatrix bars. FIG. 18 is a cross-sectional view of the generatrix bar within the housing. 2... Main board 10... Daughter board 100
... Connector 102 for main board... Insulating housing 104, 108 for main board
...Terminal 124...Electric contact taa...
- First terminal row 200...First connector for child board 202...First insulating housing for child board 204, 2
08...Terminal 300...Second connector for child board 302...Second insulating housing for child board 306...
・First terminal row (receptacle) 400... Electrical connector 408... Electrical contact 420... Conductive plate 424.425... Opening 42B... Slit
428...Protrusion piece 500...Laminated bus bar 502.502A-D...Bus bar 504...Insulating material 50B...Protrusion piece

Claims

[Claims] (1) A multi-contact electrical connector assembly for interconnecting corresponding conductive layers on a parent board and a daughter board, comprising a parent board connector, the parent board connector being an insulating parent board connector. The multi-contact electrical connector assembly also includes a first connector for a daughter board, a second connector for a daughter board, and a plurality of terminals located in a housing for the daughter board. 2 connector is a multi-contact electrical connector assembly comprising a plurality of terminals that can be interfitted with corresponding terminals in the mother board connector, wherein the daughter board connector means includes a first insulating material for the daughter board a housing, and a second insulating housing for another daughter board disposed on the opposite side of one edge of the daughter board, wherein the terminals in the mother board connector and the daughter board connector are first terminals. and a second terminal row, and the first terminal row in the first housing for the daughter board is divided into the second row for the daughter board.
located on the opposite side of the child board, far from the second terminal row in the housing, and the parent board housing and the second daughter board housing are fitted together so that only the second terminal row is precisely aligned. The terminals in the first terminal row in the connector for the mother board and the first housing for the daughter board can be mated together without precise alignment in a direction perpendicular to the daughter board. A multi-contact electrical connector assembly characterized in that a plurality of daughter boards of different thicknesses can thereby be employed. (2) A laminated bus bar comprising a plurality of elongated conductive bus bars, the bus bars being juxtaposed in a plurality of parallel planes, and a plurality of adjacent bus bars , separated by an insulating material to form a stacked state, each bus bar having a plurality of protrusions protruding from one elongated edge, at least a portion of each protrusion being for electrical contact. the one elongated length projecting beyond the insulating material to form a protrusion, the electrical contact protrusions being parallel to each other, and from which the electrical contact protrusions protrude;
a flat surface of each electrical contact tab oriented along an edge to engage a mating electrical receptacle;
A generatrix bar extending in a direction transverse to the longitudinal axis of the laminated generatrix bars. (3) Electrical connector that interconnects multiple electrical contacts
The electrical connector includes a conductive plate having a plurality of apertures, each aperture having a plurality of protrusions defined by a plurality of slits. means for engaging the contacts of the electrically conductive plate, the prongs being deflected when the electrical contacts are inserted into the protrusions, from opposing sides of the electrically conductive plate; An electrical connector characterized in that protrusions in different openings protrude and contacts can be inserted into the plate opening from a plurality of opposing sides.