CN102933025A - Printed circuit board and coupling subassembly of printed circuit board - Google Patents

Abstract

The invention provides a printed circuit board and a coupling subassembly of the printed circuit board. The coupling subassembly comprises at least one printed circuit board and a connector. The printed circuit board comprises a hard plate body, at least one connection section and a signal wire, wherein the connection section is the same as the plate body in material and extends and bends outwards along the plate body, and the signal wire extends to the end part of the connection section along the plate body and is used for transmitting a high-speed signal, and the connector is correspondingly connected with the end part of the connection section. Therefore, the connection section in the printed circuit board is changed into a bent state, and the connection of the printed circuit board and the other circuit boards is facilitated. Meanwhile, a connector with a long signal pin is avoided, and therefore, the problems of serious crosstalk and damaged signal integrity caused by an extra-short high-speed signal wire inside the connector are reduced.

Description

Printed circuit board (PCB) and printed circuit board (PCB) coupling assembling

Technical field

The present invention relates to a kind of printed circuit board (PCB) and printed circuit board (PCB) coupling assembling.

Background technology

Along with the time delay of data-signal is more and more less, the performance of electronic equipment promotes rapidly.For example, third generation PCI-E signal rate is 8Gbps, and third generation SAS signal rate can reach 12Gbps.Yet the transmission rate of signal is higher, and the cross-interference issue between signal is just more serious, and for fear of the cross-interference issue between high speed signal, HW High Way can keep wider spacing when wiring.Yet when high speed signal by connector the time, because the restriction of width, the spacing of HW High Way in connector must shorten, and crosstalks thereby produce.

For example, when printed circuit board (PCB) is connected with other circuit boards are vertical, need to utilize rigging-angle connector to connect.As everyone knows, holding wire length in the rigging-angle connector is greater than the holding wire length in the in-line connector, and this is so that crosstalking between the high speed signal that transmits in rigging-angle connector must be than crosstalking seriously between the high speed signal that transmits in in-line connector.Similarly, stacking connector also is like this.

Although high speed connector has in the market been considered the cross-interference issue of connector inside, between the connection pin, done the ground shielding, but along with following signal rate is more and more higher, the transmission rate of high-speed transfer holding wire may reach 20Gbps, 30Gbps, 40Gbps even higher only relies on the ground shielding of connector inside can't better solve above-mentioned cross-interference issue.Therefore, need to improve the structure of existing printed circuit board (PCB), to reduce the cross-interference issue of high speed signal in connector.

Summary of the invention

The shortcoming of prior art the object of the present invention is to provide a kind of printed circuit board (PCB) and printed circuit board (PCB) coupling assembling in view of the above, to reduce high speed signal crosstalking in connector.

Reach for achieving the above object other relevant purposes, the invention provides a kind of printed circuit board (PCB), comprise at least: rigid plate body; Identical with the material of described plate body, stretch out and at least one crooked connecting portion along described plate body; And the holding wire of described plate body to the end of described connecting portion of postponing; Wherein, described holding wire is used for transmit high-speed signals.

Preferably, described printed circuit board (PCB) is formed by stacking by a plurality of daughter boards, and at least one described daughter board comprises described connecting portion.

Preferably, described connecting portion for stretch out along described plate body, through final its end parts parallel of double at least bending in described printed circuit board (PCB) and the fixing structure of curved shape.

Preferably, described connecting portion for stretch out along described plate body, through final its end of at least one heavy bending perpendicular to described printed circuit board (PCB) and the fixing structure of curved shape.

Reach for achieving the above object other relevant purposes, the present invention also provides a kind of printed circuit board (PCB) coupling assembling, and it comprises at least: as above arbitrary described printed circuit board (PCB); Connector with single-port, the corresponding end that connects described connecting portion.

Preferably, described connector comprises following a kind of at least: in-line connector, rigging-angle connector, and stacking connector.

As mentioned above, a kind of printed circuit board (PCB) of the present invention and printed circuit board (PCB) coupling assembling have following beneficial effect: the connecting portion of described printed circuit board (PCB) is warp architecture, can be convenient to being connected of other circuit boards of described printed circuit board (PCB) and different directions; Simultaneously, can avoid using the long connector of holding wire, reduce thus crosstalk serious and the impaired impact of signal integrity due to extremely narrow of high speed signal distance between centers of tracks in the connector; In addition, described printed circuit board (PCB) has described connecting portion a plurality of and the maintenance certain intervals, on the basis of the integrated level that improves printed circuit board (PCB), more can change flexibly the spacing between the connecting portion, reduce the use of stacking connector, reduce thus the crosstalking and the loss of signal integrity in extremely narrow space of different high speed signals in the stacking connector; In addition, replace stacking connectors also can partly avoid crosstalking between high speed signal in the connector with a plurality of rigging-angle connectors; Also have, connecting portion and plate body are that whole hard material can be avoided the existing necessary fixture of attaching of institute when changing closure of section that flexibly connects, and can effectively reduce thus the complexity of printed circuit board (PCB) coupling assembling.

Description of drawings

Fig. 1 is shown as the structural representation of printed circuit board (PCB) of the present invention.

Fig. 2 is shown as the structural representation of a kind of preferred embodiment of printed circuit board (PCB) coupling assembling of the present invention.

Fig. 3 is shown as the structural representation of another preferred embodiment of printed circuit board (PCB) coupling assembling of the present invention.

Fig. 4 is shown as the structural representation that printed circuit board (PCB) coupling assembling of the present invention is connected with existing printed circuit board (PCB).

The element numbers explanation

1 printed circuit board (PCB)

11 connecting portions

12 holding wires

13 daughter boards

14 plate bodys

2 connectors

3 existing printed circuit board (PCB)s

Embodiment

Below by particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification.

See also Fig. 1 to Fig. 4.Notice, the appended graphic structure that illustrates of this specification, ratio, size etc., equal contents in order to cooperate specification to disclose only, understand and reading for person skilled in the art scholar, be not to limit the enforceable qualifications of the present invention, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the purpose that can reach, all should still drop on disclosed technology contents and get in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the present invention.

The invention provides a kind of printed circuit board (PCB) and printed circuit board (PCB) coupling assembling, be used for printed circuit board (PCB) is linked to each other with other circuit boards or components and parts.Described printed circuit board (PCB) coupling assembling comprises printed circuit board (PCB) 1, andconnector 2.

As shown in Figure 1, described printed circuit board (PCB) 1 comprisesplate body 14, at least one connectingportion 11 and holding wire 12.Wherein, described printed circuit board (PCB) 1 is the piece rigid structure; Describedholding wire 12 is used for transmit high-speed signals.Wherein, described high speed signal refers to the propagation delay time of signal less than the sixth of the rising time of this signal, and it includes but not limited to: based on the signal of PCIE protocol transmission, based on the signal of usb protocol transmission, DDR signal etc.

Particularly, describedplate body 14 comprises insulated substrate and is plated in the conductive layer of described insulated substrate that described conductive layer comprises theholding wire 12 of transmit high-speed signals.Wherein, describedplate body 14 is rigid.Described connectingportion 11 can have one, also can have a plurality ofly, and when described connectingportion 11 was a plurality of, each described connectingportion 11 can be positioned at the different directions of describedplate body 14, and preferably, each described connecting portion is in the same direction of describedplate body 14.

Described connectingportion 11 is the structure that stretches out along described printed circuit board (PCB) 1 and curved shape is fixing.

Particularly, described connectingportion 11 also comprises the insulated substrate identical with describedplate body 14 materials, reaches theholding wire 12 that is extended to described connectingportion 11 by the conductive layer in the describedplate body 14, describedholding wire 12 extends to the end of described connectingportion 11, in order to link to each other with described connector 2.The curved shape of described connectingportion 11 needed and decide according to actual the connection, and it includes but not limited to: along describedplate body 14 stretch out, through double at least bending finally its end parts parallel in the structure of describedplate body 14; Or along describedplate body 14 stretch out, structure through final its end of at least one heavy bending perpendicular to described plate body 14.Described connectingportion 11 each heavy crooked angle can be identical, can be not identical yet, and preferably, each heavy crooked angle is the right angle.

For example, as shown in Figure 1, described printed circuit board (PCB) 1 has a described connectingportion 11, and described connectingportion 11 stretches out and changes into the right-angle bending shape along describedplate body 14.

Preferably, shown in Fig. 2,3, described printed circuit board (PCB) 1 is formed by stacking by a plurality ofdaughter boards 13, and at least one describeddaughter board 13 comprises described connecting portion 11.Deciding towards the actual needs of complying with described printed circuit board (PCB) 1 of each described connectingportion 11, preferably, each described connectingportion 11 all is positioned at described printed circuit board (PCB) 1 one sides.

Need to prove, it should be appreciated by those skilled in the art that the structure of the structure of describeddaughter board 13 and aforementioned printed circuit board (PCB) 1 is same or similar, be not described in detail in this.

For example, described printed circuit board (PCB) 1 is formed by stacking by two daughter board A1, A2.Wherein, the connecting portion a1 of described daughter board A1 along described daughter board A1 stretch out, final parallel with described daughter board A1 through double right-angle bending; The connecting portion a2 of described daughter board A2 stretches out along described daughter board A2.Described connecting portion a1, a2 all are positioned at described printed circuit board (PCB) 1 one sides.

And for example, described printed circuit board (PCB) 1 is formed by stacking by two daughter board B1, B2.Wherein, the connecting portion b1 of described daughter board B1 along described daughter board B1 stretch out, final vertical with described daughter board B1 through triple right-angle bendings; The connecting portion b2 of described daughter board B2 stretches out, weighs right-angle bending perpendicular to described daughter board B2 through one along described daughter board B2.Described connecting portion b1, b2 are positioned at described printed circuit board (PCB) 1 one sides, and do not link to each other mutually each other.

The describedconnector 2 corresponding ends that connect a described connectingportion 11 are used for the high speed signal of described connectingportion 11 transmission is reached other printed circuit board (PCB)s or components and parts.Describedconnector 2 includes but not limited to in-line connector, rigging-angle connector, stacking connector etc.The quantity of describedconnector 2 is decided according to actual needs.Wherein, the directional correlation of the selection of describedconnector 2 and described connectingportion 11.

Preferably, described connectingportion 11 for stretch out along described printed circuit board (PCB) 1, through final its end parts parallel of double at least bending in described printed circuit board (PCB) 1 and the fixing structure of curved shape.

For example, as shown in Figure 2, the connecting portion a1 of daughter board A1 in the described printed circuit board (PCB) 1 links to each other with rigging-angle connector, the connecting portion a2 of daughter board A2 in the described printed circuit board (PCB) 1 links to each other with in-line connector, and then twodaughter boards 13 can be realized respectively the transmission of high speed signal with other circuit boards or components and parts.

More preferably, described connectingportion 11 for stretch out along described printed circuit board (PCB) 1, through final its end of at least one heavy bending perpendicular to described printed circuit board (PCB) 1 and the fixing structure of curved shape.

For example, as described in Figure 4, printed circuit board (PCB) 1 of the present invention comprises crooked rectangular connectingportion 11, and existing printed circuit board (PCB) 3 comprises existing connecting portion.Wherein, the connectingportion 11 of described printed circuit board (PCB) 1 links to each other with the male of in-line connector 2, the connecting portion of described existing printed circuit board (PCB) 3 links to each other with the female of in-line connector 2, has realized that so printed circuit board (PCB) C1 is connected with the vertical of printed circuit board (PCB) C2, with transmit high-speed signals.

Need to prove, it should be appreciated by those skilled in the art that above-mentioned printed circuit board (PCB) C1 is connected connection only for for example with printed circuit board (PCB) C2, but not limitation of the present invention, in fact, above-mentioned printed circuit board (PCB) C1 can also link to each other with other electronic devices and components or circuit board by in-line connector.

In sum, the connecting portion of the printed circuit board (PCB) in printed circuit board (PCB) of the present invention and the printed circuit board (PCB) coupling assembling is warp architecture, can be convenient to being connected of other circuit boards of printed circuit board (PCB) and different directions; Simultaneously, can avoid using the long connector of holding wire, reduce thus crosstalk serious and the impaired impact of signal integrity due to extremely narrow of high speed signal distance between centers of tracks in the connector; In addition, described printed circuit board (PCB) has described connecting portion a plurality of and the maintenance certain intervals, on the basis of the integrated level that improves printed circuit board (PCB), more can change flexibly the spacing between the connecting portion, reduce the use of stacking connector, reduce thus the crosstalking and the loss of signal integrity in extremely narrow space of different high speed signals in the stacking connector; In addition, replace stacking connectors also can partly avoid crosstalking between high speed signal in the connector with a plurality of rigging-angle connectors; Also have, connecting portion and plate body are that whole hard material can be avoided the existing necessary fixture of attaching of institute when changing closure of section that flexibly connects, and can effectively reduce thus the complexity of printed circuit board (PCB) coupling assembling.So the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.

Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not is used for restriction the present invention.Any person skilled in the art scholar all can be under spirit of the present invention and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under disclosed spirit and the technological thought, must be contained by claim of the present invention.

Claims (6)

1. printed circuit board (PCB) is characterized in that it comprises at least:

Rigid plate body;

Identical with the material of described plate body, stretch out and at least one crooked connecting portion along described plate body; And

The described plate body of postponing is the holding wire of the end of described connecting portion extremely; Wherein, described holding wire is used for transmit high-speed signals.

2. printed circuit board (PCB) according to claim 1 is characterized in that, described printed circuit board (PCB) is formed by stacking by a plurality of daughter boards, and at least one described daughter board comprises described connecting portion.

3. printed circuit board (PCB) coupling assembling according to claim 1 and 2 is characterized in that, described connecting portion for stretch out along described plate body, through final its end parts parallel of double at least bending in described printed circuit board (PCB) and the fixing structure of curved shape.

4. printed circuit board (PCB) coupling assembling according to claim 1 and 2 is characterized in that, described connecting portion for stretch out along described plate body, through final its end of at least one heavy bending perpendicular to described printed circuit board (PCB) and the fixing structure of curved shape.

5. a printed circuit board (PCB) coupling assembling is characterized in that, comprises at least:

Such as the arbitrary described printed circuit board (PCB) of claim 1 to 5;

Connector, the corresponding end that connects the connecting portion in the described printed circuit board (PCB).

6. printed circuit board (PCB) coupling assembling according to claim 5 is characterized in that, described connector comprises following a kind of at least:

In-line connector, rigging-angle connector, and stacking connector.

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