CN216057618U

CN216057618U - Industrial control mainboard based on godson

Info

Publication number: CN216057618U
Application number: CN202121918548.6U
Authority: CN
Inventors: 胡丹龙; 王明贵
Original assignee: Suzhou Jiangzhi Electronic Technology Co ltd
Current assignee: Suzhou Jiangzhi Electronic Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-15
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses an industrial control mainboard based on a Loongson, which comprises an insulating substrate, an upper conductive pattern layer, a middle conductive pattern layer and a lower conductive pattern layer, wherein an extension part with a screw hole extends from the edge of the insulating substrate; the circuit mainboard is provided with a Loongson 2K chip, a video bus conversion module, a format conversion module, a CAN transceiver and a level conversion module which are electrically connected with the conductive pattern layer; the upper conductive pattern layer is electrically connected with the middle conductive pattern layer through at least 2 first blind hole groups, the upper conductive pattern layer is electrically connected with the lower conductive pattern layer through at least 2 second blind hole groups, and the first blind hole groups and the second blind hole groups are alternately distributed at intervals in the plane direction of the circuit board. The industrial control mainboard based on the Loongson effectively prevents mutual interference among internal signals, avoids shaking of the circuit board, improves the loading and unloading efficiency and is convenient for personnel to operate.

Description

Industrial control mainboard based on godson

Technical Field

The utility model relates to a circuit main board, and belongs to the technical field of electronic information.

Background

The Loongson is a general CPU independently developed by the Chinese academy of sciences, adopts an independent LoongISA instruction system, and is compatible with MIPS instructions. With the rise of digital science and technology in China, more and more autonomous research and development elements start to gradually replace imported elements, and manufacturers start to produce main boards for the loongson in order to create a reasonable market environment for chips made in China. However, the current mainboard based on the Loongson still has technical defects to be overcome.

Disclosure of Invention

The industrial control mainboard based on the Loongson effectively prevents mutual interference among internal signals, avoids shaking of a circuit board, improves loading and unloading efficiency and is convenient for personnel to operate.

In order to achieve the purpose, the utility model adopts the technical scheme that: an industrial control mainboard based on a Loongson comprises an insulating substrate, an upper conductive pattern layer, a middle conductive pattern layer and a lower conductive pattern layer, wherein the lower conductive pattern layer is positioned on the upper surface of the insulating substrate;

the circuit mainboard is provided with a Loongson 2K chip, a video bus conversion module, a format conversion module, a CAN transceiver and a level conversion module which are electrically connected with the conductive pattern layer;

the upper conductive pattern layer is electrically connected with the middle conductive pattern layer through at least 2 first blind hole groups, the upper conductive pattern layer is electrically connected with the lower conductive pattern layer through at least 2 second blind hole groups, each first blind hole group consists of a plurality of first blind holes distributed at intervals, and each second blind hole group consists of a plurality of second blind holes distributed at intervals;

and a second blind hole group is arranged between the adjacent first blind hole groups, and a first blind hole group is arranged between the adjacent second blind hole groups, so that the first blind hole groups and the second blind hole groups are alternately distributed at intervals in the plane direction of the circuit board.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the circuit main board is further provided with an LVDS interface, a micro HDMI interface, a CAN interface, a serial interface, and an LVDS interface electrically connected to the conductive pattern layer.

2. In the scheme, the thickness of the first dielectric layer and the second dielectric layer is 100-200 microns.

3. In the scheme, the slope of the side wall of the first blind hole ranges from 80 degrees to 85 degrees.

4. In the scheme, the slope of the side wall of the second blind hole ranges from 80 degrees to 85 degrees.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages and effects:

1. the industrial control mainboard based on the Loongson comprises an insulating substrate, an upper conductive pattern layer, a middle conductive pattern layer and a lower conductive pattern layer, wherein a first blind hole group positioned between the upper conductive pattern layer and the middle conductive pattern layer and a second blind hole group positioned between the upper conductive pattern layer and the lower conductive pattern layer are alternately distributed at intervals in the plane direction of the circuit board, so that the problem of mutual interference caused by the increase of the line density and the number of layers of the circuit board is effectively solved, the mutual interference among internal signals is effectively prevented, and the accuracy, the reliability and the stability of the signal transmission of the circuit board are improved.

2. According to the industrial control mainboard based on the Loongson, the extension part with the screw hole extends from the edge of the insulating substrate, and the bolt is screwed into the screw hole of the extension part, so that the circuit board is prevented from shaking, the loading and unloading efficiency is improved, and the operation of personnel is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of an industrial control mainboard based on a Loongson, which is disclosed by the utility model;

fig. 2 is an electrical principle schematic diagram of the industrial control mainboard based on the Loongson.

In the above drawings: 1. an insulating substrate; 2. an upper conductive pattern layer; 3. a middle conductive pattern layer; 4. a lower conductive pattern layer; 5. a first dielectric layer; 6. a second dielectric layer; 7. a first blind hole group; 71. a first blind hole; 8. a second blind hole group; 81. a second blind hole; 9. an extension portion; 91. a screw hole; 10. a bolt; 11. 2K Loongson chips; 12. a video bus conversion module; 121. an LVDS interface; 13. a format conversion module; 131. a micro HDMI interface; 14. a CAN transceiver; 141. a CAN interface; 15. a level conversion module; 151. and (6) a serial port interface.

Detailed Description

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

Example 1: an industrial control mainboard based on a Loongson comprises an insulating substrate 1, an upper conductive pattern layer 2, a middle conductive pattern layer 3 and a lower conductive pattern layer 4, wherein the lower conductive pattern layer 4 is positioned on the upper surface of the insulating substrate 1, a first dielectric layer 5 and a second dielectric layer 6 are respectively arranged between the middle conductive pattern layer 3 and the upper conductive pattern layer 2 as well as between the middle conductive pattern layer 3 and the lower conductive pattern layer 4, an extension part 9 with a screw hole 91 is extended from the edge of the insulating substrate 1, and a bolt 10 is screwed into the screw hole 91 of the extension part 9;

the circuit main board is provided with a Loongson 2K chip 11, a video bus conversion module 12, a format conversion module 13, a CAN transceiver 14 and a level conversion module 15 which are electrically connected with the conductive pattern layer;

the upper conductive pattern layer 2 is electrically connected with the middle conductive pattern layer 3 through at least 2 first blind hole groups 7, the upper conductive pattern layer 2 is electrically connected with the lower conductive pattern layer 4 through at least 2 second blind hole groups 8, the first blind hole groups 7 are composed of a plurality of first blind holes 71 distributed at intervals, and the second blind hole groups 8 are composed of a plurality of second blind holes 81 distributed at intervals;

a second blind hole group 8 is arranged between the adjacent first blind hole groups 7, and a first blind hole group 7 is arranged between the adjacent second blind hole groups 8, so that the first blind hole groups 7 and the second blind hole groups 8 are alternately distributed at intervals in the plane direction of the circuit board.

The circuit main board is further provided with an LVDS interface 121, a micro HDMI interface 131, a CAN interface 141 and a serial interface 151 which are electrically connected with the conductive pattern layer.

The thickness of the first dielectric layer 5 and the second dielectric layer 6 was 125 μm.

The slope of the side wall of the first blind hole 71 is 84 °.

The slope of the side wall of the second blind hole 81 is 84 °.

Example 2: an industrial control mainboard based on a Loongson comprises an insulating substrate 1, an upper conductive pattern layer 2, a middle conductive pattern layer 3 and a lower conductive pattern layer 4, wherein the lower conductive pattern layer 4 is positioned on the upper surface of the insulating substrate 1, a first dielectric layer 5 and a second dielectric layer 6 are respectively arranged between the middle conductive pattern layer 3 and the upper conductive pattern layer 2 as well as between the middle conductive pattern layer 3 and the lower conductive pattern layer 4, an extension part 9 with a screw hole 91 is extended from the edge of the insulating substrate 1, and a bolt 10 is screwed into the screw hole 91 of the extension part 9;

The thickness of the first dielectric layer 5 and the second dielectric layer 6 was 160 μm.

The slope of the side wall of the first blind hole 71 is 82 °.

The slope of the side wall of the second blind hole 81 is 82 °.

When the industrial control mainboard based on the Loongson is adopted, the insulating substrate, the upper conductive pattern layer, the middle conductive pattern layer and the lower conductive pattern layer are alternately distributed at intervals in the plane direction of the circuit board, so that the problem of mutual interference caused by the increase of the line density and the number of layers of the circuit board is effectively solved, the mutual interference among internal signals is effectively prevented, and the accuracy, the reliability and the stability of the signal transmission of the circuit board are improved; and the edge of the insulating substrate extends to form an extension part with a screw hole, and a bolt is screwed into the screw hole of the extension part, so that the circuit board is prevented from shaking, the loading and unloading efficiency is improved, and the operation of personnel is facilitated.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an industrial control mainboard based on godson, its characterized in that: the conductive pattern structure comprises an insulating substrate (1), an upper conductive pattern layer (2), a middle conductive pattern layer (3) and a lower conductive pattern layer (4), wherein the lower conductive pattern layer (4) is positioned on the upper surface of the insulating substrate (1), a first dielectric layer (5) and a second dielectric layer (6) are respectively arranged between the middle conductive pattern layer (3) and the upper conductive pattern layer (2) as well as between the middle conductive pattern layer and the lower conductive pattern layer (4), an extension part (9) with a screw hole (91) extends from the edge of the insulating substrate (1), and a bolt (10) is screwed into the screw hole (91) of the extension part (9);

the industrial control mainboard is provided with a Loongson 2K chip (11), a video bus conversion module (12), a format conversion module (13), a CAN transceiver (14) and a level conversion module (15), which are electrically connected with the conductive pattern layer;

the upper conductive pattern layer (2) is electrically connected with the middle conductive pattern layer (3) through at least 2 first blind hole groups (7), the upper conductive pattern layer (2) is electrically connected with the lower conductive pattern layer (4) through at least 2 second blind hole groups (8), the first blind hole groups (7) are composed of a plurality of first blind holes (71) distributed at intervals, and the second blind hole groups (8) are composed of a plurality of second blind holes (81) distributed at intervals;

a second blind hole group (8) is arranged between the adjacent first blind hole groups (7), and a first blind hole group (7) is arranged between the adjacent second blind hole groups (8), so that the first blind hole group (7) and the second blind hole group (8) are alternately distributed at intervals in the plane direction of the circuit board.

2. The industrial control mainboard based on Loongson of claim 1, characterized in that: and the industrial control mainboard is also provided with an LVDS interface (121), a micro HDMI interface (131), a CAN interface (141) and a serial interface (151) which are electrically connected with the conductive pattern layer.

3. An industrial control mainboard based on Loongson according to claim 1 or 2, characterized in that: the thickness of the first dielectric layer (5) and the second dielectric layer (6) is 100-200 microns.

4. An industrial control mainboard based on Loongson according to claim 1 or 2, characterized in that: the slope of the side wall of the first blind hole (71) is 80-85 degrees.

5. An industrial control mainboard based on Loongson according to claim 1 or 2, characterized in that: the slope of the side wall of the second blind hole (81) is 80-85 degrees.