JPH1065288A - Printed board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the inserting in reverse of electric parts to be inserted and insertion of wrong parts by classifying the electric parts to be inserted by color depending on their uses, and displaying silk prints of parts symbols and circuit symbols. SOLUTION: Parts symbols 10a, representing the graphic symbols of electric parts classified by color depending on uses and silk-printed by a silk screen and circuit symbols 10b representing the kinds of electric parts and circuit numbers 10b, are displayed on the surface of a printed board 10. Constants 11a, representing the resistances etc., of the electric parts 11, are represented by the color codes 10c of solid resistors printed on the surface of the board 10. By inserting the electric parts into the board 10 the silk-printed parts symbols 10a, circuit symbols 10b, and color codes 10c match the constants 10a representing the resistance values of the electric parts 11, inverse inserting in reverse of the electric parts and misinsertion of wrong parts are prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board, and more particularly to a printed circuit board design method for designing a printed circuit board in order to manufacture a printed circuit board into which electric components are inserted.

[0002]

2. Description of the Related Art In a conventional printed circuit board, the silk print colors of component symbols and circuit symbols to be printed on the printed circuit board are displayed in one color on one printed circuit board. Generally, the design method is not described on the printed circuit board for the constant.

A conventional printed circuit board will be described with reference to the drawings. FIG. 4 is a perspective view illustrating a conventional printed circuit board and electric components mounted on the printed circuit board. FIG. 5 illustrates a conventional printed circuit board and a connector connected to the printed circuit board. FIG.

FIG. 4 shows a case where the electric component 2 is inserted into the printed circuit board 1. On the surface of the printed circuit board 1 mounted on the electronic device, a component symbol 1a indicating a graphic symbol of an electric component silk-printed by a silk screen and a circuit symbol 1b indicating a type and a circuit number of the electric component are displayed. Have been. The silk printing on the printed circuit board 1 is one color. For such a printed circuit board 1,
The electrical component 2 with leads corresponding to the component symbol 1a and the circuit symbol 1b is vertically inserted and mounted.

FIG. 5 shows a case where the lead of the connector main body 3 is inserted into the printed circuit board 1. On the surface of the printed circuit board 1 mounted on the electronic device, a circuit symbol 1b (PC) indicating a circuit number of an electric component silk-printed by a silk screen is displayed. The silk printing on the printed circuit board 1 is one color. The printed circuit board 1 is visually compared with and matched with a circuit symbol 3a representing the circuit number of the connector on which the label is attached and displayed, and the lead of the connector body 3 is inserted. And the connector body 3 are connected.

[0006]

In this conventional printed circuit board, since the color of the silk print printed on the printed circuit board is one color, the component symbol and the polarity indication of the inserted electric component are the same color. For this reason, it has not been easy to cause reverse insertion of the inserted electrical component or to visually detect the reverse insertion or a different component. In addition, since the circuit symbol of the inserted electrical component is printed in the same color alphanumeric, the insertion of a different component due to mistakes or the visual confirmation of whether the inserted location of the inserted component is appropriate Could not.

[0007] In inserting the connector, in order to match the circuit symbol of the connector insertion portion of the printed circuit board with the circuit symbol of the connector main body, a wire protruding from the connector main body must be inserted.
It is necessary to attach a circuit symbol label indicating the circuit number of the connector, or to stamp the circuit symbol with a judge, which leads to an increase in the cost of the connector body. In addition, erroneous insertion of the connector due to misunderstanding of the circuit symbol when inserting the connector,
In addition, during assembly of the product, the circuit symbol label is pinched between components inside the product.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a printed circuit board capable of reducing reverse insertion of an inserted electric component and insertion of a different component, and detecting the reverse insertion of the electric component by visual confirmation at an early stage.

[0009]

The printed circuit board according to the present invention is characterized in that silk symbols of component symbols and circuit symbols are displayed in different colors according to the intended use of the inserted electrical components. Another printed circuit board according to the present invention is characterized in that the silk-screen printing of the component symbol is displayed in the same color as the color of the wire derived from the inserted connector body.

[0010]

The above and other objects of the present invention,
Embodiments of the present invention will be described below in detail with reference to the drawings in order to make the configuration and effects clearer.

FIG. 1 is a plan view illustrating a multicolor silk-printed state of a printed circuit board according to a first embodiment of the present invention, and illustrating electric components inserted into the printed circuit board.
FIG. 2 is a perspective view for explaining a state where each electric component is inserted into the printed circuit board.

On the surface of the printed circuit board 10 according to the present embodiment, a component symbol 1 representing a graphic symbol of an electrical component, which is color-coded by use and silk-printed by silk screen.
0a and a circuit symbol 10b indicating the type and the circuit number of the electric component are displayed. Here, the constant 11a representing the resistance value, the rated voltage, and the capacitance of the electric component 11 can be represented by a color code 10c of the fixed resistor printed on the surface of the printed circuit board 10. In the present embodiment, the color code 10c is composed of a group of color-coded dots.

The insertion of the electric component into the printed circuit board 10 includes a component symbol 10a representing a graphic symbol of the electric component, which is silk-screened by silk screen, a type of the electric component,
This is performed so that the circuit symbol 10b representing the circuit number and the color code 10c of the fixed resistor and the constant value 11a representing the resistance value, the rated voltage, and the capacitance of the electric component 11 are matched.

FIG. 3 is a perspective view for explaining a printed circuit board according to the second embodiment of the present invention, and shows a state in which leads of the connector main body 12 are inserted into the printed circuit board 10. On the surface of the printed circuit board 10 of the present embodiment,
A component symbol 10a representing a symbol of the connector, which is silk-printed on a silk screen, is displayed. The insertion of the connector into the printed circuit board 10 matches the part symbol 10a, which is a silk-screen printed on the printed circuit board 10 with a silk screen, representing the symbol of the connector with the line color 12a of the connector body 12 to be inserted. And do it. For example, if the line color 12a is red, the silk-printed component symbol 10a is red and has the same color.

[0015]

As described above, according to the present invention,
Silk printing of component symbols and circuit symbols printed on the printed circuit board is color-coded for each application, and the constants of electrical components are also printed and displayed with color codes. Along with the reduction of component insertion, reverse insertion of an electric component by visual confirmation can be detected early. In addition, it can be easily determined by visual confirmation whether the inserted part is properly inserted.

In the connector insertion, it is not necessary to display a circuit symbol indicating the circuit number of the connector on the connector main body, thereby reducing the cost of the connector main body and reducing the cost of the connector insertion portion printed on the printed circuit board by the silk-printing. Since the verification of the circuit symbol by visual inspection of the connector body with respect to the circuit symbol becomes a line color, the erroneous insertion due to a mistaken mistake is reduced, and the label is not pinched or broken at the time of product assembly.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating a printed circuit board according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state where electric components are mounted on the printed circuit board of FIG. 1;

FIG. 3 is a perspective view illustrating a printed circuit board according to a second embodiment of the present invention.

FIG. 4 is a perspective view for explaining a conventional printed circuit board.

FIG. 5 is a perspective view for explaining another conventional printed circuit board.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Printed circuit board 10a Component symbol 10b Circuit symbol 10c Color code 11 Electrical component 11a Constant 12 Connector body 12a Line color

Claims (3)

[Claims] 1. A printed circuit board, wherein component symbols and circuit symbols are silk-printed by being color-coded according to the use of the electric component to be inserted. 2. The display device according to claim 1, wherein a constant of the electric component to be inserted is displayed in a printing color of silk printing.
Printed circuit board as described. 3. A printed circuit board wherein silk-screened component symbols are displayed in the same color as the color of a wire derived from a connector body to be inserted.