CN101009406A

CN101009406A - Backboard connector combination

Info

Publication number: CN101009406A
Application number: CNA2006100948122A
Authority: CN
Inventors: 卢松青; 约瑟夫·R·考桑斯盖
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2004-02-24
Filing date: 2004-11-12
Publication date: 2007-08-01
Anticipated expiration: 2024-11-12
Also published as: CN101009406B; CN1661860A; TW200529497A; CN100399631C

Abstract

A backboard connector combination is provided, including: a first and second printed circuit board(20, 30); an electrical connector(1) electrically interconnecting the two printed circuit boards; and plural conductive terminals(12) being arranged in the electrical connector and making contact with the first and the second printed circuit boards at the same time, wherein the electrical connector is positioned adjacent to where the first and the second printed circuit boards are intersected with each other.

Description

The back panel connector combination

[technical field]

The present invention is relevant a kind of back panel connector combination, relates in particular to a kind of the electric connection and intersects two connecting structure of printed circuit board of arranging.

[background technology]

Various electronic systems, especially radio communications system, server and switch include a large amount of parts that are installed on the printed circuit board (PCB) (such as daughter board and motherboard).The motherboard that is connected in daughter board is usually owing to the fixing backboard that is called as.The connector that daughter board is assembled to removedly motherboard is called back panel connector.Motherboard is connected with transmission signals in system and power supply by electric connector with daughter board.

Usually, motherboard, backboard are the printed circuit board (PCB)s that is installed in server or the switch, and it connects some back panel connectors.Each daughter board is provided with a butt connector, and it inserts back panel connector removedly.After all daughter boards were connected on the backboard, daughter board was connected to each other and is arranged in parallel by backboard.

Yet, connect daughter board by backboard and can cause signal to interfere with each other, because daughter board all connects by backboard, when transmitting backboard, signal will be slackened.Generally speaking, the signal through two daughter boards can be at least through reaching second pair of connector between the backboard and second daughter board at first pair of connector between first daughter board and the backboard.Therefore, signal need pass two pairs of butt connectors altogether, every transmission primaries its all will be weakened.

Usually, the arrangement of backboard and daughter board is " TTTT " type (looking down from above), and backboard is horizontally disposed with, and daughter board is perpendicular to the backboard setting.In some cases, the backboard two sides is equipped with electric connector so that daughter board is mounted thereon, and this arrangement is " ++ ++ " type (looking down from above).In this arrangement, the daughter board that is arranged in the motherboard two sides communicates mutually by motherboard (such as median plate).

A lot of electric connectors are used to reach these arrangements, announce the 5th, 993 as United States Patent (USP), the electric connector that is disclosed for No. 259, it comprises some chip modules that are incorporated into together, and is shown in Figure 4 as it, terminal is stamped to form by a sheet metal, imbeds then in the insulating material to form chip.

United States Patent (USP) announces the 6th, 083, has disclosed a kind of method of utilizing printed circuit board (PCB) to make high-density connector No. 047, and is shown in Figure 12 as it, and conductive path is to be formed at the surface of printed circuit board (PCB) and to be mirror image to arrange.

United States Patent (USP) announces the 6th, 267, has disclosed a kind of similar structures No. 604.

United States Patent (USP) announces the 5th, 356, has disclosed a pair of back-to-back arrangement of motherboard two opposite faces and the pin connector of shared terminal of being installed on No. 301, and it is connected and installed in socket connector and wire and cable connector on the daughter board respectively.

Yet the above-mentioned connector of carrying all is installed on backboard or the median plate.As everyone knows, if there is not median plate, daughter board is connected to each other directly, and interference will weaken greatly, and also subduing of signal can reduce greatly.But, do not have a kind of existing electric connector can satisfy requirement like this.

United States Patent (USP) announces the 6th, 540, and No. 522 (calling No. 522 patents of US ' in the following text) disclosed a kind of structure of removing median plate, that is the direct quadrature connection of two daughter boards, shown in its Fig. 9 is clear.This is a major progress.

Yet second connector that an end of first connector of signal from first printed circuit board (PCB) transfers to second printed circuit board (PCB) still needs a longer distance, and the problem of subduing of signal still and do not solve.On the other hand, above-mentioned connector is installed on the one side or an edge of motherboard and daughter board.The opposing face that shown in Figure 9 as No. 522 patents of US ', second group of connector are placed in circuit board is impossible.

Usually, if terminal is provided with longitudinally, then the conductive spacer of the butt joint terminal of butt connector or printed circuit board (PCB) must be identical with the direction of terminal.Before the present invention, it is impossible that electronic cards is inserted bayonet connector along the direction that is orthogonal to connector terminals.If terminal is not suitably arranged, the insertion of electronic cards can damage the terminal in the electric connector.When electronic cards was inserted, after terminal must retreat to the interface of connector, when electronic cards arrived the final position, terminal extended interface.There is not a kind of existing connector can satisfy this requirement.

For example, United States Patent (USP) announces the 6th, 508, and having disclosed for No. 675 a kind ofly can provide the structure of short electrical path between the printed circuit board (PCB) that pairwise orthogonal is arranged.As its Figure 1 and Figure 2, if printed circuit board (PCB) does not insert slit along the electric connector end face to the direction (vertical direction) of bottom surface, the contact site that extends into the terminal of slit can suffer damage surely.

For circuit board is inserted slit along the direction that is different from from top to bottom, need establish the device of a control terminal in addition, when printed circuit board (PCB) inserted, after terminal retreated to interface, when printed circuit board (PCB) was inserted to its final position, terminal extended interface.

Of the present inventionly be the back panel connector combination that a kind of printed circuit board (PCB) that intersects each other in order to the connection that addresses the above problem is provided.

[summary of the invention]

Technical problem to be solved by this invention provides and a kind ofly connects the printed circuit board (PCB) of intersect arranging and can reach the back panel connector combination of short electrical path.

For solving the problems of the technologies described above, the present invention's back panel connector combination comprises: first and second printed circuit board (PCB), electrically connect the electric connector of first and second printed circuit board (PCB), and electric connector is provided with the plurality of conductive terminals that can contact with two printed circuit board (PCB)s simultaneously, wherein first printed circuit board (PCB) and second printed circuit board (PCB) intersect arrangement, and described electric connector is arranged at the intersection location near two printed circuit board (PCB)s.

Compared with prior art, the back panel connector combination that the present invention connects printed circuit board (PCB) has following effect: electrically connect first, second printed circuit board (PCB) that intersects each other by each conducting terminal in electric connector, can effectively shorten the signal transmission distance between the printed circuit board (PCB).

[description of drawings]

Fig. 1 is provided with among the present invention somely to accommodate the fixed head of slit and be contained in the movable platen of accommodating slit.

Fig. 2 is the combination schematic diagram of Fig. 1.

Fig. 3 is the front view of Fig. 2.

Fig. 4 is a part stereogram of the present invention, and wherein part is cut to show the fixed head (level board) and movable platen (vertical plate) that electrically connects by electric connector.

Fig. 5 is the cutaway view of Fig. 4.

Fig. 6 is the cutaway view before drive unit drives.

Fig. 7 is the cutaway view after drive unit drives, and the terminal that wherein is connected in drive unit moves downwards and outwards, shown in arrow A, B.

Fig. 8 is that wherein two electric connectors separate with movable platen by the fixed head of four electric connectors electric connections and the cutaway view of movable platen.

Fig. 9 is similar to Fig. 8, and wherein four electric connectors are positioned at the final position.

Figure 10 is the schematic diagram that shows the relation of terminal and drive unit.

Figure 11 is the end view that first end of terminal is connected in the insulation root of drive unit.

Figure 12 is the stereogram of the electric connector of unassembled drive unit.

Figure 13 is the stereogram that is arranged in conductive spacer and the hole on the movable platen and is installed on two connectors on the movable platen.

Figure 14 be on the fixed head accommodate slit and along accommodating the stereogram of the conductive spacer of slit arrangement.

Figure 15 is the stereogram that is installed on the connector on fixed head and the movable platen.

Figure 16 is the schematic diagram by interconnected fixed head of electric connector and movable platen.

[embodiment]

See also Fig. 1, Fig. 2 and shown in Figure 3, some level boards 20 (i.e. first printed circuit board (PCB)) and vertical plate 30 (i.e. second printed circuit board (PCB)) intersect each other, to form some tie point or nodes 203 that are positioned between the two.For the purpose of convenient the elaboration, level board 20 is called " fixed head ", and vertical plate 30 is called " movable platen ".

See also Fig. 4 and shown in Figure 5, the electric connector 1 among the present invention is in order to electrically connect fixed head 20 and movable platen 30.This electric connector 1 comprises the insulating body 10 that is provided with some accepting grooves 11 and somely is contained in the accepting groove 11 and terminal 12 movably, and wherein accepting groove 11 is at the interface 10a of insulating body 10 and be adjacent between the installed surface 10b of interface 10a.Terminal 12 moves with respect to insulating body 10.Note, the terminal 12 that moves with respect to insulating body 10 comprises Fixed Design and other design that designs or be provided with moveable part around the pivot of a certain fixing point, as long as terminal 12 can move along fixed head 20, i.e. the present invention is not limited in execution mode hereinafter described.

Each terminal 12 comprises first end 12a that extends interface 10a and the second end 12b that extends installed surface 10b.Accepting groove 11 is provided with openend 11a, 11b, and so, first, second end 12a, the 12b of terminal 12 can move along interface 10a, installed surface 10b respectively.Terminal 12 is stamped to form by sheet metal.In preferred forms, terminal 12 has little, the firm characteristic of elasticity, and this physical characteristic makes terminal 12 do the time spent and can be easier in accepting groove 11 to move in being subjected to external force.

Electric connector 1 further comprises some skew elastic portion 14.Each skew elastic portion 14 comprises stiff end 14a in the stable fixedly seam 13 that is immobilizated on the insulating body 10, the elastic arm 14b that extends from stiff end 14a and the insulation division 14c that is connected in elastic arm 14b end.Insulation division 14c can be one-body molded with elastic arm 14b, can also be assembled to elastic arm 14b after the first moulding.Some skew elastic portion 14 can also be all one-body molded.Insulation division 14c provides a skew active force to the first end 12a of terminal 12.

Electric connector 1 further provides the drive unit 15 movably along installed surface 10b.In preferred forms, this drive unit 15 comprises the metal matrix 15a of a sheet and is connected in the insulation root 15b of matrix 15a.This insulation root 15b is provided with some holes 150 in order to the second end 12b that accommodates terminal 12.When drive unit 15 when the installed surface 10b of insulating body 10 moves down, the second end 12b of terminal 12 also moves down along installed surface 10b, the first end 10a moves away from movable platen 30.As mentioned above, skew elastic portion 14 provides an actuating force to terminal 12.So, when terminal 12 moved with drive unit 15, first,

second end

12a, 12b were with respect to pad 21 (first conductive spacer), 31 (second conductive spacer) sliding contact corresponding on fixed head 20 and the movable platen 30.

Shown in Figure 10 and Figure 11 were clear, the second end 12b of terminal 12 was connected in the insulation root 15b of drive unit 15.So, terminal 12 can move with drive unit 15.

Electric connector 1 further comprises the metal shell 16 that is installed on the insulating body 10, and it can cover terminal 12, avoids terminal 12 to be subjected to the influence of electromagnetic interference.

See also Figure 12 and shown in Figure 13, insulating body 10 is provided with a pair of protuberance 100, and this protuberance 100 is formed on the installed surface 10b that is adjacent to 10 liang of opposite faces 102 of insulating body.This is provided with a host cavity 104 between the two to accommodate drive unit 15 to protuberance 100 in it.Insulating body 10 is provided with and a pair of electric connector 1 is positioned reference column 10c and a pair of through hole 10d on the movable platen 30, this through hole 10d accommodate pair of catches nail 10e with electric connector 1 firm snap close on movable platen 30.Housing 16 connects the ground path ground connection of movable platen 30 or fixed head 20.

See also Figure 6 and Figure 7, it has disclosed the situation that terminal 12 moves when drive unit 15 is driven in the accepting groove 11 of insulating body 10.As shown in Figure 6, movable platen 30 intersects at fixed head 20.When electric connector 1 stable being installed on the movable platen 30, the actuating force that terminal 12 is applied to it by skew elastic portion 14 is usually pushed the conductive spacer 31 (shown in Figure 13) of movable platen 30 to.At this moment, the second end 12b of terminal 12 is positioned at the extreme higher position of accepting groove 11, and elastic arm 14b is approximately perpendicular to fixed head 20.

When drive unit 15 moves down, the second end 12b of terminal 12 moves down with the insulation root 15b of drive unit 15, (being second direction) as shown by arrow A, the first end 12a of terminal 12 moves to the direction away from movable platen 30 along fixed head 20, as shown by arrow B (being first direction).Elastic arm 14b provides an actuating force so that drive unit 15 is positioned in the host cavity 104 to the first end 12a of terminal 12.First, second end 12a, the 12b of terminal 12 is electrically connected at the conductive spacer 21 (shown in the 14th figure), 31 of fixed head 20, movable platen 30 respectively.So, fixed head 20 and movable platen 30 are set up by electric connector 1 and are electrically connected.

As clearly shown in Figure 7, the first end 12a of terminal 12 moves to first direction along fixed head 20, and the second end 12b moves to the second direction perpendicular to first direction along movable platen 30.This is a very big progress, has solved long-term needs and unsolved market demands can thoroughly address this problem by electric connector of the present invention.

See also shown in Figure 13, movable platen 30 be provided with a pair of in order to the reference column 10c that accommodates electric connector 1 location hole 32 and accommodate pair of catches nail 10e electric connector 1 is installed on a pair of installing hole 33 of movable platen 30.Conductive spacer 31 is arranged on two opposite faces of movable platen 30, and between two installing holes.For ease of describing, conductive spacer 31, location hole 32 and installing hole 33 are referred to as " circuit ".

Please consult Fig. 8 and shown in Figure 9 in conjunction with Figure 13, " circuit " arranged in the following manner: two electric connectors 1 are shown the mirror image mode greatly and are installed on movable platen 30 1 sides, and this two connectors, 1 each interval leaves receiving space 18 to accommodate fixed head 20.

Please consult shown in 14 figure in conjunction with Fig. 4, fixed head 20 is provided with from what its leading edge 20a extended and accommodates slit 22, its leading edge 30a (as Fig. 1 and shown in Figure 13) that can accommodate movable platen 30 is to be contained in fixed head 20 easily in the receiving space 18, so, movable platen 30 and fixed head 20 are set up by electric connector 1 and are electrically connected.Conductive spacer 21 is arranged along accommodating slit 22.As shown in Figure 9, when movable platen 30 and fixed head 20 intersected each other, available four electric connectors 1 connected movable platen 30 and fixed head 20, and this makes system designer that very big choice be arranged, and it can select suitable number to improve electrical effect.

From the mathematics angle, movable platen 30 goes out four quadrants with fixed head 20 definables.In preferred forms, four electric connectors 1 are distributed in the corresponding quadrant.Can select the number of electric connector 1 by actual needs, such as can only selecting two electric connectors 1 that lay respectively in first, second quadrant or first, third quadrant or first, the four-quadrant to offer movable platen 30, this makes the interconnected selection between movable platen 30 and the fixed head 20 have very big elasticity.If the plane that formed by fixed head 20 is called first plane, movable platen 30 formation second plane then, terminal forms the 3rd plane, this three planar shaped triangle that meets at right angles, the 3rd plane is a hypotenuse.

According to above announcement, a kind of method that electrically connects horizontally disposed fixed head 20 and vertically disposed movable platen 30 comprises the steps: that (1) provides the fixed head 20 that is provided with conductive spacer 21; (2) provide the movable platen 30 that is provided with conductive spacer 31; (3) on fixed head or movable platen, be provided with one and accommodate slit; (4) provide an electric connector to accommodate slit to electrically connect first printed circuit board (PCB) and second printed circuit board (PCB) near this.

See also Figure 15 and shown in Figure 16, in present embodiment, each quadrant provides an electric connector 1.Only, be not that each quadrant must be installed an electric connector 1, this depends on the needs of real work.So, but the electric connection between designer's free arrangement movable platen 30 and the fixed head 20.

Electric connector 1 of the present invention can be made by several different methods.In present embodiment, at first on the insulating body 10 of electric connector 1, form accepting groove 11, terminal 12 inserts in the accepting groove 11 then, and skew elastic portion 14 is mounted on the insulating body 10, and last housing 16 is installed on the insulating body 10 and part is surrounded insulating body 10.

Note, announce the 6th, 508 as United States Patent (USP), the structure that has disclosed for No. 675, this electric connector 1 can be made of the plurality of terminals module.Each terminal module is provided with the accepting groove 11 of accommodating terminal 12, and skew elastic portion 14 also is installed on the terminal module.At last, all terminal modules are installed on together.

Preferably arrange electric connector 1 configuration is got up by terminal module, on the other hand, two-terminal 12 can be contained in wherein an accepting groove 11 so that a differential pair terminal to be provided.In present embodiment, terminal 12 can be a lead, such as the golden coremaking line that is coated by insulated hull.

Be noted that if accommodating slit is necessary to be located on the movable platen 30, electric connector 1 can be arranged on the fixed head 20, such as motherboard.The present invention can provide the designer by the electric connection between its requirement selection fixed head 20 and the movable platen 30.

Be noted that no matter accommodate slit and be positioned at wherein on the printed circuit board, still be positioned on two printed circuit board that it is all in order to be connected and fixed plate 20 and movable platen 30.Can be chosen in fixed head 20 and be provided with protuberance, electrically connect by electric connector 1 and movable platen 30 with conductive spacer.Therefore, the present invention can have multiple embodiments.

Claims

1. back panel connector combination, it comprises: first and second printed circuit board (PCB), electrically connect the electric connector of first and second printed circuit board (PCB), and electric connector is provided with the plurality of conductive terminals that can contact with two printed circuit board (PCB)s simultaneously, it is characterized in that: first printed circuit board (PCB) and second printed circuit board (PCB) intersect, and described electric connector is arranged at the intersection location near two printed circuit board (PCB)s.

2. back panel connector combination as claimed in claim 1 is characterized in that: the orthogonal setting of first and second printed circuit board (PCB).

3. back panel connector combination as claimed in claim 1, it is characterized in that: first printed circuit board (PCB) is provided with accommodates slit, second printed circuit board (PCB) runs through the described slit of accommodating, thereby make first printed circuit board (PCB) have the part that is in the second printed circuit board (PCB) both sides respectively, and make two printed circuit board (PCB)s form four quadrants.

4. back panel connector combination as claimed in claim 1 is characterized in that: described electric connector is arranged in the crossing angular range of first and second printed circuit board (PCB), and described conducting terminal extends along the bisector direction that is approximately perpendicular to described angle.

5. back panel connector combination as claimed in claim 1, it is characterized in that: described electric connector also comprises insulating body, this edge body is provided with the parallel relative interface of first printed circuit board (PCB), parallel relative installed surface with second printed circuit board (PCB), reaches the accepting groove that connects installed surface and interface, conducting terminal is contained in this accepting groove and is provided with first end and second end that rightabout towards each other extends, and described first end and the corresponding respectively interface of second end and installed surface also contact with the conductive spacer that is provided with on first and second printed circuit board (PCB).

6. back panel connector combination as claimed in claim 5, it is characterized in that: described conducting terminal is flat and perpendicular to two printed circuit board (PCB) direction settings, described accepting groove also is the flat parallel with conducting terminal, and between insulating body and conducting terminal, form the gap of stepping down on the terminal plane at conducting terminal place, make the described conducting terminal can be along the terminal planar gesture.

7. back panel connector combination as claimed in claim 6, it is characterized in that: being provided with between the insulating body of described electric connector and second printed circuit board (PCB) can be along installed surface at the drive unit that slides between two positions up and down, and second end of conducting terminal is articulated in this drive unit.

8. back panel connector combination as claimed in claim 7, it is characterized in that: described drive unit comprises sheet metal substrate and is connected in the insulation root of matrix, root is provided with the hole corresponding to accepting groove, and second end of conducting terminal is contained in this hole and connects the conductive spacer that is provided with on this hole and second printed circuit board (PCB) and contacts.

9. back panel connector combination as claimed in claim 8, it is characterized in that: described electric connector is provided with the skew elastic portion, and when drive unit was mobile from the top down, resilient bias portion was to the flexible barrier effect of the conducting terminal that moves with drive unit.

10. back panel connector combination as claimed in claim 9 is characterized in that: described skew elastic portion is provided with length and prolongs the shape elastic arm, and an end of elastic arm is connected with the stiff end that is fixed in insulating body, and the other end then can be barred from first end of conducting terminal.