CN210807776U

CN210807776U - Peripheral hole fool-proof printed circuit board

Info

Publication number: CN210807776U
Application number: CN201920980860.4U
Authority: CN
Inventors: 林建辉; 曾信钿
Original assignee: Fujian Weilong Electronics Technology Co ltd
Current assignee: Fujian Weilong Electronics Technology Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-06-19
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a peripheral hole fool-proof printed circuit board, which comprises a printed circuit board, wherein the printed circuit board comprises a board edge and a central board surface, a rectangular forming line is arranged at the center of the printed circuit board, and a plurality of groups of welding holes are arranged in the central board surface; the utility model discloses a setting up the fool-proof hole, make the processing position of the circuit board can be judged through the fool-proof hole before the circuit board processing, avoid appearing the possibility of processing direction error; the color layer is coated on the periphery of the foolproof hole, so that workers can conveniently distinguish the foolproof hole from other holes on the circuit board, and the distinguishing efficiency is improved; through setting up the geometry and preventing slow-witted structure for can prevent slow-witted structure through the geometry and distinguish the circuit board of different models, thereby avoid adding the possibility that the compounding appears in the circuit board during processing.

Description

Peripheral hole fool-proof printed circuit board

Technical Field

The utility model relates to a printed circuit board technical field specifically is a peripheral hole prevents slow-witted printed circuit board.

Background

Printed circuit boards, also known as printed circuit boards, are providers of electrical connections for electronic components. Its development has been over 100 years old; the design of the method is mainly layout design; the circuit board has the main advantages of greatly reducing errors of wiring and assembly, and improving the automation level and the production labor rate.

The existing printed circuit board is a complex process with long manufacturing process, more applied equipment and frequent personnel change. When any one of the processes is neglected, irreparable loss can be caused. Therefore, during the manufacturing design, the design of materials, manufacturing processes, product types, manufacturing tools and the like which are easy to make mistakes needs to be foolproof, and marks are added. The fool-proof hole is formed in the circuit board, so that scrapping caused by negligence of production personnel can be effectively avoided, but the existing fool-proof hole is inconvenient to distinguish from other holes in the circuit board, the identification efficiency of the production personnel is reduced, and the production efficiency is further reduced; and the circuit boards of different models are inconvenient to distinguish by the existing circuit board, so that the possibility of mixing materials is easily caused. Based on this, the utility model designs a peripheral hole prevents slow-witted printed circuit board to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a peripheral hole prevents slow-witted printed circuit board to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: a peripheral hole fool-proofing printed circuit board comprises a printed circuit board, wherein the printed circuit board comprises board edges and a central board surface, a rectangular forming line is arranged in the center of the printed circuit board, the board edges and the central board surface are separated through the forming line, and a plurality of groups of welding holes are formed in the central board surface;

the improved plate edge structure is characterized in that rectangular plate milling lines surrounding the central plate surface are arranged on the plate edge, four groups of positioning holes are symmetrically arranged at four corners of the plate edge in a pairwise manner, two groups of fool-proof holes are arranged at the left lower corner of the plate edge, and the two groups of fool-proof holes are respectively located on the upper side and the right side of the positioning holes at the left lower corner.

Preferably, the two fool-proof holes are coaxially arranged with the lower left corner positioning hole respectively, and the distances between the two fool-proof holes and the lower left corner positioning hole are unequal.

Preferably, the diameters of the two groups of fool-proof holes are equal to the diameters of the four groups of positioning holes.

Preferably, color layers for distinguishing and identifying are coated on the peripheries of the two groups of foolproof holes.

Preferably, the left long edge and the right long edge of the plate edge are symmetrically provided with geometric fool-proof structures.

Preferably, the geometric fool-proofing structure may be semicircular, triangular or rectangular.

Compared with the prior art, the beneficial effects of the utility model are that:

compared with the prior art, the utility model has the advantages that the fool-proof holes are arranged, so that the processing direction of the circuit board can be judged through the fool-proof holes before the circuit board is processed, and the possibility of wrong processing direction is avoided; the color layer is coated on the periphery of the foolproof hole, so that workers can conveniently distinguish the foolproof hole from other holes on the circuit board, and the distinguishing efficiency is improved; meanwhile, the diameter of the fool-proof hole is equal to that of the positioning hole, so that the fool-proof hole is convenient to process; through setting up the geometry and preventing slow-witted structure for can prevent slow-witted structure through the geometry and distinguish the circuit board of different models, thereby avoid adding the possibility that the compounding appears in the circuit board during processing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1-printed circuit board, 2-board edge, 3-central board surface, 4-forming line, 5-welding hole, 6-rectangular board routing line, 7-positioning hole, 8-fool-proof hole, 801-color layer and 9-geometric fool-proof structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a peripheral hole fool-proofing printed circuit board comprises a printed circuit board 1, wherein the printed circuit board 1 comprises a board edge 2 and a central board surface 3, a rectangular forming line 4 is arranged at the center of the printed circuit board 1, the board edge 2 and the central board surface 3 are separated through the forming line 4, and a plurality of groups of welding holes 5 are formed in the central board surface 3;

be equipped with on the flange 2 around the rectangle gong board line 6 of

central face

3, 2 four corners bisymmetry of flange are provided with four groups of locating holes 7, and the 2 lower left corners of flange are provided with two sets of slow-witted holes 8 of preventing, and just two sets of slow-witted holes 8 of preventing are located the upside and the right side of lower left corner locating hole 7 respectively.

Specifically, two sets of fool-proof holes 8 are respectively arranged coaxially with the lower left corner positioning hole 7, and the distances between the two sets of fool-proof holes 8 and the lower left corner positioning hole 7 are unequal, so that the fool-proof holes can be formed in a staggered manner, and the upper and lower directions of the circuit board can be easily distinguished.

Specifically, the diameters of the two groups of fool-proof holes 8 are equal to the diameters of the four groups of positioning holes 7, and the diameters of the fool-proof holes and the positioning holes are equal, so that other tools are not needed in the fool-proof hole machining process, and the fool-proof holes are convenient to machine.

Specifically, the peripheries of the two fool-proof holes 8 are coated with color layers 801 for distinguishing and identifying, so that the positions of the two fool-proof holes are convenient to distinguish.

Specifically, the left long side and the right long side of the plate edge 2 are symmetrically provided with geometric fool-proof structures 9, so that circuit boards of different models can be distinguished through the geometric fool-proof structures.

Specifically, the geometric fool-proofing structure 9 may be semicircular, triangular or rectangular.

One specific application example of this embodiment is:

the device is a peripheral hole fool-proof printed circuit board, when a worker processes the circuit board, the worker judges the upper and lower directions of the circuit board according to two groups of fool-proof holes 8, and the difference of the distance between the hole centers of the two groups of fool-proof holes 8 and the hole centers of the positioning holes 7 is utilized, so that when the printed circuit board is installed and fixed by the positioning holes 7, if the upper and lower and positive and negative installation directions exist, the fool-proof holes 8 cannot be matched with positioning pins on a mold, namely, the printed circuit board cannot be fixed, only the printed circuit board can be fixed if the printed circuit board is installed correctly, and the circuit board can be; the color layer coated on the periphery of the fool-proof hole 8 can enable a worker to quickly find out the position of the fool-proof hole 8; and the geometric fool-proof structures 9 arranged on the left side and the right side of the circuit board edge 2 can enable workers to rapidly distinguish circuit boards of different models according to different shapes of the geometric fool-proof structures 9, so that the possibility of mixing the circuit boards is avoided.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplicity of description, 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 therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a peripheral hole prevents slow-witted printed circuit board, includes printed circuit board (1), its characterized in that: the printed circuit board (1) comprises a board edge (2) and a central board surface (3), a rectangular forming line (4) is arranged at the center of the printed circuit board (1), the board edge (2) and the central board surface (3) are separated by the forming line (4), and a plurality of groups of welding holes (5) are formed in the central board surface (3);

rectangular board routing lines (6) surrounding the central board surface (3) are arranged on the board edges (2), four corners of the board edges (2) are symmetrically provided with four groups of positioning holes (7) in pairs, two groups of fool-proof holes (8) are arranged at the lower left corner of the board edges (2), and the two groups of fool-proof holes (8) are respectively positioned at the upper side and the right side of the lower left corner positioning holes (7);

color layers (801) for distinguishing and identifying are coated on the peripheries of the two groups of foolproof holes (8);

the left long edge and the right long edge of the plate edge (2) are symmetrically provided with geometric fool-proof structures (9), and the geometric fool-proof structures (9) can be semicircular, triangular or rectangular.

2. The peripheral-hole fool-proof printed circuit board of claim 1, wherein: the two groups of fool-proof holes (8) are respectively arranged coaxially with the lower left corner positioning hole (7), and the distances between the two groups of fool-proof holes (8) and the lower left corner positioning hole (7) are unequal.

3. The peripheral-hole fool-proof printed circuit board of claim 1, wherein: the diameters of the two groups of fool-proof holes (8) are equal to the diameters of the four groups of positioning holes (7).