Printed circuit board with connectors arranged on two sides and electronic equipment

Abstract

The utility model relates to the technical field of electronic circuits, and discloses a printed circuit board with connectors arranged on two sides and an electronic device, the printed circuit board with connectors arranged on two sides comprises a printed circuit board and at least one pair of connectors, each pair of connectors comprises a first connector and a second connector which are oppositely arranged on two sides of the printed circuit board, the surface of the top layer of the printed circuit board is provided with first bonding pad areas, first wiring sets and first via hole sets which are in one-to-one correspondence with the first pin sets, the two first via hole sets are located between the two corresponding first bonding pad areas, and the first wiring sets are connected with the corresponding first bonding pad areas and the first via hole sets; the surface of the bottom layer of the printed circuit board is provided with second bonding pad areas, second wiring sets and second via hole sets which are in one-to-one correspondence with the second pin sets, the two second via hole sets are located on the outer sides of the two corresponding second bonding pad areas, and the second wiring sets are connected with the corresponding second bonding pad areas and the second via hole sets. According to the scheme, the problem that circuit board layout is difficult is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic circuit technical field, especially a kind of double-sided layout connector's printed circuit board and electronic equipment. BACKGROUND

[0002] SODIMM (small outline dual in-line memory module) is a kind of computer memory using integrated circuit.

[0003] SODIMM is often used in limited space system, for example, notebook computer, small volume personal computer based on Mini-ITX mainboard, high-end upgradeable office printer and network hardware such as router, NAS device. In recent years, with more and more board-level devices, the layout difficulty of circuit board is more and more big. How to layout more devices in the case of single board size unchanged has become a problem to be solved. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of double-sided layout connector's printed circuit board and electronic equipment, for improving the problem that board-level device is more and more, circuit board layout is difficult.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of double-sided layout connector's printed circuit board includes printed circuit board and at least a pair of connectors, wherein, each pair of the connector includes the first connector located in the top layer side of the printed circuit board and the second connector located in the bottom layer side of the printed circuit board, the first connector is oppositely arranged with the second connector;The first connector includes first main part and two first pin groups distributed in the two sides of the first main part, and the second connector includes second main part and two second pin groups distributed in the two sides of the second main part;

[0007] The top surface of the printed circuit board is provided with a first pad area, a first trace group and a first via group corresponding to each of the first pin groups, and the first pin groups are connected to the first pad area; two first via groups corresponding to the same first connector are located between two first pad areas corresponding to the first connector, and the first trace group connects the corresponding first pad area and the first via group, that is, the first connector fans out to the inner side of the first main body; the bottom surface of the printed circuit board is provided with a second pad area, a second trace group and a second via group corresponding to the second pin group, and the second pin group is connected to the second pad area, that is, the second connector fans out to the outer side of the second main body; two second via groups corresponding to the same second connector are located on the outer side of two second pad areas corresponding to the second connector, and the second trace group connects the corresponding second pad area and the second via group.

[0008] In this scheme, at least one pair of connectors are attached on the printed circuit board, which can reduce the space occupied on one side of the printed circuit board compared to two connectors arranged on the same surface of the printed circuit board, thereby leaving space for the arrangement of other components on that side, which is beneficial to arranging more board-level devices on that side of the printed circuit board. At the same time, the first connector fans out to the inner side of the first main body and the second connector fans out to the outer side of the second main body, so that the fan-out of the first connector and the second connector is completely isolated, which can avoid the interference of signals between the first connector and the second connector.

[0009] In addition, in this scheme, the first connector and the second connector can both use via hole type via fan-out, that is, the vias in the first via group and the vias in the second via group can both be via holes. Compared with the blind hole fan-out mode, it saves processing cost.

[0010] Optionally, a plurality of vias arranged in a rectangular array are arranged between the two first pad areas corresponding to the same first connector on the printed circuit board, and the plurality of vias include the two first via groups corresponding to the first connector.

[0011] Optionally, the distance between any two adjacent first vias is equal.

[0012] Optionally, the distance between any two adjacent first vias is 30-40 mils.

[0013] Optionally, a plurality of vias are arranged on one side of the second pad area corresponding to the same second connector on the printed circuit board, away from the other second pad area, and the plurality of vias are arranged in a rectangular array; the plurality of vias include the second via group corresponding to the second connector.

[0014] Optionally, the distance between any two adjacent second vias located on the same side of the second pad area is 30 to 40 mils.

[0015] Optionally, the printed circuit board with double-sided connectors includes a system-on-a-chip (SoC), which is connected to the first connector via a first signal channel and to the second connector via a second signal channel.

[0016] Optionally, at least one of the first connector and the second connector connects to a DDR series SODIMM.

[0017] This utility model also provides an electronic device, which includes any of the double-sided connector printed circuit boards provided in the above technical solutions. Attached Figure Description

[0018] Figure 1 A perspective view of a printed circuit board with connectors arranged on both sides, provided for an embodiment of this utility model;

[0019] Figure 2 for Figure 1 A side view of a printed circuit board with connectors arranged on both sides.

[0020] Figure 3 for Figure 1 The front view of the printed circuit board with double-sided connectors shown.

[0021] Figure 4 for Figure 1 The rear view of the printed circuit board with double-sided connectors is shown.

[0022] Icons: 1-Printed circuit board; 111-First pad; 112-First trace; 113-First via; 121-Second pad; 122-Second trace; 123-Second via; 2-First connector; 3-Second connector; 4-System-on-a-chip; 5-First signal channel; 6-Second signal channel; 7, 8-Small outline dual in-line memory modules. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-4As shown, the printed circuit board with the double-sided layout connector comprises a printed circuit board 1 and at least one pair of connectors, wherein each pair of connectors comprises a first connector 2 located on one side of the top surface a of the printed circuit board 1 and a second connector 3 located on one side of the bottom surface b of the printed circuit board 1, and the first connector 2 is arranged opposite to the second connector 3. It is not difficult to understand that the first connector 2 comprises a first main body part and two first pin groups distributed on both sides of the first main body part, and each first pin group comprises a plurality of first pins; and the second connector 3 comprises a second main body part and two second pin groups distributed on both sides of the second main body part, and each second pin group comprises a plurality of second pins.

[0025] Further, the top surface a of the printed circuit board 1 is provided with a first pad area corresponding to each first pin group, a first trace group and a first via group, and the first pin group is connected to the corresponding first pad area. The two first via groups corresponding to the same first connector 2 are located between the two first pad areas corresponding to the first connector 2, and the first trace group connects the corresponding first pad area and the first via group. That is, the first connector 2 fans out to the inside of the first main body part. The bottom surface b of the printed circuit board 1 is provided with a second pad area corresponding to each second pin group, a second trace group and a second via group, and the second pin group is connected to the corresponding second pad area. The two second via groups corresponding to the same second connector 3 are located on the outside of the two second pad areas corresponding to the second connector 3, and the second trace group connects the corresponding second pad area and the second via group. That is, the second connector 3 fans out to the outside of the second main body part. It is not difficult to understand that the first pad area comprises a plurality of first pads 111, the first trace group comprises a plurality of first traces 112, and the first via group comprises a plurality of first vias 113. The second pad area comprises a plurality of second pads 121, the second trace group comprises a plurality of second traces 122, and the second via group comprises a plurality of second vias 123.

[0026] In this scheme, the at least one pair of connectors are arranged on the same side of the printed circuit board 1, which can reduce the space occupied on one side of the printed circuit board 1 compared to arranging two connectors on the same surface of the printed circuit board 1, thereby leaving space for the arrangement of other components on the side, which is beneficial to arranging more board-level devices on the side surface of the printed circuit board 1. At the same time, the first connector 2 fans out to the inside of the first main body part on the printed circuit board 1, and the second connector 3 fans out to the outside of the second main body part, so that the fan-out of the first connector 2 and the second connector 3 is completely isolated, which can avoid the interference of signals between the first connector 2 and the second connector 3.

[0027] In addition, in this scheme, the first connector 2 and the second connector 3 can both adopt via fan-out, that is, the vias in the first via group and the vias in the second via group can both be vias. Compared with the blind hole fan-out mode, the processing cost is saved.

[0028] In one implementation, as shown in Figure 1 and Figure 2 , the printed circuit board with double-sided layout connectors includes a printed circuit board 1 and a pair of connectors. The top surface a of the printed circuit board 1 is provided with two first pad areas corresponding to two first pin groups of a first connector 2, two first trace groups and two first via groups. The first pin groups are connected to the corresponding first pad areas. The first via groups are located between the two first pad areas, and the first trace groups connect the corresponding first pad areas and the first via groups. The bottom surface b of the printed circuit board 1 is provided with two second pad areas corresponding to two second pin groups of a second connector 3, two second trace groups and two second via groups. The second pin groups are connected to the corresponding second pad areas. The two second via groups are both located outside the two second pad areas of the second connector 3, that is, the second via groups are located on the side opposite to the other second pad area. The second trace groups connect the corresponding second pad areas and the second via groups.

[0029] In one possible implementation, as shown in Figure 3 , the printed circuit board 1 is provided with a plurality of vias in a rectangular array between the two first pad areas corresponding to the same first connector 2. The plurality of vias includes two first via groups corresponding to the first connector 2. In this scheme, the first vias 113 in each first via group are regularly distributed, which is beneficial to simplify the design.

[0030] Exemplarily, the arrangement direction of the two first pin groups of the same first connector 2 is the first direction, and the direction perpendicular to the first direction on the top surface a of the printed circuit board 1 is the second direction. One of the two adjacent sides of the above-mentioned rectangular array is parallel to the first direction, and the other of the two adjacent sides of the above-mentioned rectangular array is parallel to the second direction.

[0031] In one implementation, the distance between any two adjacent first vias 113 is equal, so as to simplify the design of the printed circuit board 1. Exemplarily, the distance between any two adjacent first vias 113 is 30-40 mil. For example, the distance between any two adjacent first vias 113 is 30 mil, 35 mil or 40 mil.

[0032] In one possible implementation, the printed circuit board 1 is provided with a plurality of vias on the side away from the other second pad area corresponding to the same second connector 3. The plurality of vias are distributed in a rectangular array. The plurality of vias include a second via group corresponding to the second connector 3.

[0033] Further, in a specific implementation, the distance between any two adjacent second vias 123 is equal, so as to simplify the design of the printed circuit board 1. For example, the distance between any two adjacent second vias 123 on the same side of the second land area is 30-40 mils. For example, the distance between any two adjacent second vias 123 on the same side of the second land area is 30 mils, 35 mils or 40 mils.

[0034] In a possible implementation, the printed circuit board with double-sided connectors includes a system on chip (SoC) 4, the system on chip 4 is connected with the first connector 2 through a first signal channel 5, and the system on chip 4 is connected with the second connector 3 through a second signal channel 6. When the first connector 2 is connected with a small outline dual in-line memory module 7 and the second connector 3 is connected with a small outline dual in-line memory module 8, the system on chip 4 can address and read data in the two signal channels respectively, so that the bandwidth of the memory is theoretically doubled, and the data access speed is also theoretically doubled. For example, the first signal channel 5 and the second signal channel 6 can share power vias and ground vias.

[0035] In a specific implementation, at least one of the first connector and the second connector can be connected with a DDR (Double Data Rate) series SODIMM, for example, a DDR3 SODIMM, a DDR4 SODIMM or a DDR5 SODIMM.

[0036] The embodiment also provides an electronic device including the printed circuit board with double-sided connectors, wherein at least one pair of connectors are arranged on the same side of the printed circuit board 1. Compared with the two connectors arranged on the same surface of the printed circuit board 1, the space occupied on one side of the printed circuit board 1 can be reduced, so as to provide space for the arrangement of other components on the side, and more board-level devices can be arranged on the side of the printed circuit board 1. Meanwhile, the first connector 2 on the printed circuit board 1 is fanned out to the inner side of the first main body part, and the second connector 3 is fanned out to the outer side of the second main body part, so that the fan-out of the first connector 2 and the second connector 3 is completely isolated, and the interference between the first connector 2 and the second connector 3 can be avoided.

[0037] In addition, the first connector 2 and the second connector 3 can be fanned out by through-hole vias, which is more cost-effective than the blind hole fan-out mode.

[0038] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A printed circuit board for double-sided layout of a connector, characterized by The printed circuit board and at least one pair of connectors, wherein each pair of the connectors comprises a first connector located on one side of the top layer of the printed circuit board and a second connector located on one side of the bottom layer of the printed circuit board, and the first connector is arranged opposite to the second connector; the first connector comprises a first main body and two first pin groups distributed on both sides of the first main body, and the second connector comprises a second main body and two second pin groups distributed on both sides of the second main body; The top layer surface of the printed circuit board is provided with a first pad area, a first wire group and a first via group corresponding to each of the first pin groups, and the first pin group is connected to the first pad area; the two first via groups corresponding to the same first connector are located between the two first pad areas corresponding to the first connector, and the first wire group connects the corresponding first pad area and the first via group; the bottom layer surface of the printed circuit board is provided with a second pad area, a second wire group and a second via group corresponding to the second pin group, and the second pin group is connected to the second pad area; the two second via groups corresponding to the same second connector are located on the outside of the two second pad areas corresponding to the second connector, and the second wire group connects the corresponding second pad area and the second via group.

2. The double-sided, connector-mounted printed circuit board of claim 1, wherein, The printed circuit board is provided with a plurality of vias in a rectangular array between the two first pad areas corresponding to the same first connector, and the plurality of vias include the two first via groups corresponding to the first connector.

3. The double-sided, connector-mounted printed circuit board of claim 2, wherein, The distance between any two adjacent first vias is equal.

4. The double-sided, connector-mounted printed circuit board of claim 3, wherein, The distance between any two adjacent first vias is 30-40 mils.

5. The double-sided, connector-mounted printed circuit board of any of claims 1-4, wherein, The printed circuit board is provided with a plurality of vias on the side away from the other second pad area of the one second pad area corresponding to the same second connector, and the plurality of vias are arranged in a rectangular array; the plurality of vias include the second via group corresponding to the second connector.

6. The double-sided, connector-mounted printed circuit board of claim 5, wherein, The distance between any two adjacent second vias on the same side of the second pad area is 30-40 mils.

7. The double-sided, connector-mounted printed circuit board of any of claims 1-4, wherein, The system-level chip is connected to the first connector through a first signal channel and connected to the second connector through a second signal channel.

8. The double-sided, connector-mounted printed circuit board of any of claims 1-4, wherein, At least one of the first connector and the second connector connects a DDR series SODIMM.

9. An electronic device, comprising: The printed circuit board comprising the double-sided layout connector according to any one of claims 1-8.

Images