CN210444572U

CN210444572U - PCBA mainboard

Info

Publication number: CN210444572U
Application number: CN201921243158.6U
Authority: CN
Inventors: 王秀芹; 涂志雄
Original assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Current assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-05-01
Anticipated expiration: 2029-08-02

Abstract

The utility model belongs to the technical field of the electronic product, a PCBA mainboard is disclosed, including two veneers, two along vertically being equipped with V-CUT line, two between the veneer is followed V-CUT line is arranged oppositely, the veneer includes main veneer, blank limit and technology limit, the blank limit with the technology limit forms respectively main veneer fore-and-aft both ends, be equipped with staggered arrangement's groove and stamp hole structure between technology limit and the main veneer. The utility model adopts the jointed board mode of staggered stamp hole structure connection, thereby ensuring the producibility of the PCB jointed board, satisfying the SMT production and mounting, and under the design, the width of the second blank edge can be only half of the width of the second process edge, thereby narrowing the PCB process edge and reducing the cost of PCB raw materials; the staggered jointed boards are adopted, the opposite technical edges on the same jointed board are designed on the boards as reserved technical edges, the boards are not required to be separated in production, the labor time cost of board separation operation is saved, and the damage caused by the stress on the PCBA components and parts due to one manual board separation process is avoided.

Description

PCBA mainboard

Technical Field

The utility model relates to an electronic product technical field especially relates to a PCBA mainboard.

Background

In the field of electronic display, a PCBA motherboard can be used as a product of a core, such as a multimedia terminal, an audio/video electronic display product, an electronic digital display product, a network device display product, a medical device, and other display products, as long as the periphery of the core board adopts a full-machine-bonding process, and the core motherboard with RCA and other audio/video terminals can be applied, for example: the display device comprises various display devices such as a television, a multimedia terminal, an audio and video electronic display product, a notebook computer, a computer display, a vehicle-mounted display screen, digital information display and the like.

Taking a television as an example, when a core board of the television is designed into a jointed board, the upper terminal layout of a PCBA main board is a mode of combining an upper terminal and a side terminal, the traditional PCB jointed board mode adopts a mode of oppositely jointing boards rotating 180 degrees, and two single boards are connected by adopting a V-CUT. After the terminal on the PCBA mainboard rotates, the tuner terminal stretches out 5mm of the board edge, and 5mm needs to be additionally added to be used as an SMT process clamping edge. After the opposite splicing plates are rotated by 108 degrees, two 10mm technical edges are required to be added at the upper part and the lower part.

Because the PCB is provided with functional terminals which are laterally and upwardly arranged, the jointed board needs to be rotated 180 degrees to be opposite to the jointed board in order to avoid the interference of devices between two single boards during the design of the jointed board. After the veneer is rotated, the SMT upper and lower clamping edge design needs to be combined with the length of the extending terminal and then 5mm process edges are added, namely 10mm process edges. And then, the other board after splicing originally only needs to be added with 5mm process edges, and V-CUT connection is adopted due to the limitation of the PCB manufacturing process, and is in straight line connection. Therefore, the clamping edges of the two SMT boards are increased by 10mm, namely the other edges waste 5mm process board edges.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCBA mainboard to solve and optimize and reduce PCB makeup area, reduce the technical problem of the use on unnecessary PCB board SMT technology centre gripping limit.

To achieve the purpose, the utility model adopts the following technical proposal:

a PCBA mainboard comprises two single boards, a V-CUT line is arranged between the two single boards along the longitudinal direction, the two single boards are oppositely arranged along the V-CUT line, wherein:

the single plate comprises a main single plate, a blank edge and a technical edge, wherein the blank edge and the technical edge are respectively formed at two longitudinal ends of the main single plate, and grooves and stamp hole structures which are arranged in a staggered mode are arranged between the technical edge and the main single plate.

Preferably, each stamp hole structure is formed between two adjacent grooves and near one side of the main single plate.

Preferably, each of the stamp aperture structures includes a plurality of stamp apertures.

Preferably, a plurality of said postage stamp holes are aligned in a straight line and perpendicular to said V-CUT line.

Preferably, each of the stamp aperture arrangements includes 4 stamp apertures.

Preferably, the width of the margin is 1/2 the width of the technical edge.

Preferably, the width of the blank edge is 5mm, and the width of the technical edge is 10 mm.

Preferably, two of the veneers have a MARK point at each of the diagonally opposite corners of the veneers.

The utility model has the advantages that: the PCB jointed board mode of staggered stamp hole structure connection is adopted, so that the producibility of the PCB jointed board is ensured, the SMT production and mounting are met, and under the design, the width of the second blank edge can be only half of that of the second process edge, so that the process edge of the PCB is narrowed, and the cost of the PCB raw material is reduced; in addition, the adopted staggered jointed boards design the opposite technical edges on the same jointed board as the reserved technical edges, so that the production does not need to be divided, the labor time cost of board dividing operation is saved, and meanwhile, the damage of the PCBA component caused by stress due to one manual board dividing process is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a PCBA motherboard provided in an embodiment of the present invention;

figure 2 is an enlarged view of a portion of the main board of the PCBA shown in figure 1.

100-PCBA mainboard; 1-single board; 11-a first veneer; 12-a second veneer; 101-long side; 111-a first master veneer; 112-a first margin; 113-a first process edge; 121-a second main veneer; 122-second margin; 123-a second process edge; 124-groove; 125-stamp hole configuration.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1-2, a PCBA board 100 is a PCBA board of a television core, and includes two single boards 1, and a V-CUT line is disposed between the two single boards 1.

The two single boards 1 include a first single board 11 on the left side and a second single board 12 on the right side, the first single board 11 and the second single board 12 are connected by a long side 101 extending along the longitudinal direction, and the long side 101 is a V-CUT line.

In this embodiment, the first single board 11 and the second single board 12 are horizontally aligned and disposed in a staggered manner, so that the multiple single boards can be connected in a quick alignment manner.

Specifically, the first single board 11 includes a first main single board 111, a first margin 112 and a first technical edge 113, where the first margin 112 is formed on an upper edge of the first main single board 111 in the longitudinal direction, and the first technical edge 113 is formed on a lower edge of the first main single board 111 in the longitudinal direction. The second single board 12 includes a second main single board 121, a second margin 122 and a second technical edge 123, the second margin 122 is formed at a lower edge of the second main single board 121 in the longitudinal direction, and the second technical edge 123 is formed at an upper edge of the second main single board 121 in the longitudinal direction. That is, the first blank edge 112 and the second blank edge 123 are located on the same side, and the first blank edge 113 and the second blank edge 122 are located on the same side, so that the first single board 11 and the second single board 12 are staggered.

The first board 11 and the second board 12 have the same structure, and the second board 12 on the right side in fig. 1 is taken as an example for further description.

Alternating slots 124 and stamp hole structures 125 are provided between the second technical edge 123 and the second main single plate 121, i.e., one set of stamp hole structures 125 is formed between two slots 124 and one slot 124 is formed between two sets of stamp hole structures 125. In this embodiment, there are 5 sets of stamp hole structures 125 and 6 slots 124 spaced apart.

The PCB jointed board is connected by adopting a jointed board mode of connecting stamp hole structures 125 which are arranged in a staggered mode, so that the producibility of the PCB jointed board is ensured, the SMT production and mounting are met, and under the design, the width of the second blank edge can be only half of that of the second process edge, so that the process edge of the PCB is narrowed, and the cost reduction of PCB raw materials is realized; in addition, the adopted staggered jointed boards design the opposite technical edges on the same jointed board as the reserved technical edges, so that the production does not need to be divided, the labor time cost of board dividing operation is saved, and meanwhile, the damage of the PCBA component caused by stress due to one manual board dividing process is avoided.

A postage stamp hole structure 125 is formed between two adjacent grooves 124 on the side near the second main veneer 121 to enhance the strength of the second main veneer 121 when the panel is assembled.

Preferably, each set of stamp aperture structures 125 has a plurality of stamp apertures, and in this embodiment, each set of stamp aperture structures 125 includes four stamp apertures that are spaced apart from one another.

In this embodiment, four stamp holes are aligned in a straight line and perpendicular to the V-CUT line, i.e., parallel to the top edge of the second main veneer 121.

In the present embodiment, the width of the second technical side 123 (the distance vertically projected on the long side 101) is 10mm, and the width of the second margin 122 (the distance vertically projected on the long side 101) is 5mm, that is, the width of the second margin 122 is half of the width of the second technical side 123.

In addition, the width of the slot 124 (the distance vertically projected onto the long side 101) is 1.5mm, the distance between two adjacent slots 124 is 4.5mm, the radius of a single stamp hole is 0.3mm, and the distance between the centers of two adjacent stamp holes is 1 mm. The length of the grooves 124 is varied within a range of 25 to 35 mm. For example, the length of two slots close to the long side 101 and the length of the slot far from the long side 101 in the middle four slots may be both 25mm, and the length of the other slot may be 35 mm.

In addition, a MARK point is respectively arranged at the oblique diagonal angles of the patch surfaces of the first single board 11 and the second single board 12 to compensate for errors in PCB manufacturing and errors in device positioning.

The utility model discloses a PCBA mainboard 100's of this embodiment concatenation method does: the stamp hole structures 125 are adopted for connection, so that the use of unnecessary SMT process clamping edges of the PCB is reduced, the operation process of the PCB breaking process edges is reduced, the labor cost of production operation is reduced, and the purposes of saving the PCB board cost and production working hours are achieved.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A PCBA mainboard is characterized by comprising two single boards (1), a V-CUT line is arranged between the two single boards (1) along the longitudinal direction, the two single boards (1) are oppositely arranged along the V-CUT line, wherein:

the single plate (1) comprises main single plates (111, 121), blank edges (112, 122) and technical edges (113, 123), wherein the blank edges (112, 122) and the technical edges (113, 123) are respectively formed at two longitudinal ends of the main single plates (111, 121), and grooves (124) and stamp hole structures (125) which are arranged in a staggered mode are formed between the technical edges (113, 123) and the main single plates (111, 121).

2. PCBA motherboard as claimed in claim 1, characterised in that each stamp aperture arrangement (125) is formed between two adjacent slots (124) and adjacent one side of the main single board (111, 121).

3. PCBA motherboard as claimed in claim 2, characterised in that each of the stamp aperture arrangements (125) comprises a number of stamp apertures.

4. A PCBA motherboard as claimed in claim 3, wherein a plurality of the postage stamp holes are aligned in a line and perpendicular to the V-CUT line.

5. PCBA motherboard as claimed in claim 4, characterised in that each of the postage stamp aperture arrangements (125) comprises 4 postage stamp apertures.

6. PCBA motherboard as claimed in claim 1, characterised in that the width of the blank edge (112, 122) is 1/2 of the width of the process edge (113, 123).

7. PCBA motherboard as claimed in claim 6, characterised in that the width of the blank edge (112, 122) is 5mm and the width of the technical edge (113, 123) is 10 mm.

8. PCBA motherboard as claimed in claim 1, characterised in that two of said boards (1) have a MARK point at each of their diagonal corners.