JP2002076543A - Printed board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent erroneously mounting by clarifying mounting positions of a plurality of electronic components without introducing a large increase in cost. SOLUTION: A printed board mounts relays 12 and 13 of the electronic components on a board body 11. In order to clarify at which of two blocks C and D on the body 11 the relay 12 has to be mounted, identification marks 16 and 17 are respectively provided on the one relay 12 and the block C to be mounted with the relay 12 by screen printing.

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 used for electronic and electric circuits for automobiles.

[0002]

2. Description of the Related Art A conventional technique and its problems will be described by taking as an example a case where a plurality of relays are mounted on a board body.

In FIG. 4, reference numeral 1 denotes a board main body, and here, an example is shown in which two types of relays 2 and 3 having different specifications such as capacity and application are mounted on the board main body 1.

The relays 2 and 3 have lead terminals 2a.
.., the substrate body 1 is provided with terminal holes 4... 5 in two rectangular sections A and B on which both relays 2 and 3 are mounted, and the lead terminals 2 a. , 5 ...
And the relays 2 and 3 are mounted on the board main body 1.

[0005]

Generally, a relay is designed by selecting the material of the contact according to the specifications such as the capacity and the purpose of use. It cannot be replaced.

However, if the colors, shapes, sizes, and the like of the two relays 2 and 3 are the same and cannot be distinguished or difficult in appearance, there is a possibility that the mounting positions of the two relays 2 and 3 may be mistaken during the mounting operation by hand. Was. In addition, even when mounting is performed by a machine, there is a possibility that a mistake may be made when setting the mounting device.

When this mounting error occurs, both relays 2,
If the coil resistance of No. 3 is different, it can be detected electrically in the inspection process. However, if the coil resistance is the same and the specifications (for example, contact materials) are different, it is impossible to detect the inspection process and it will go to the market incorrectly. As a result, there is a possibility that the life of the relays 2 and 3 is shortened because the relays 2 and 3 do not match the load.

Incidentally, it is conceivable to make the two relays 2 and 3 different in overall color and shape so that they can be distinguished from each other by the appearance of the entire relay. The cost increases.

Such a situation is not limited to the relay, but is common to the mounting of various electronic components, such as microcomputers, which are difficult to identify by appearance, and a solution to this problem has been awaited.

Accordingly, the present invention is to provide a printed circuit board that can prevent erroneous mounting by specifying mounting positions of a plurality of electronic components without significantly increasing the cost.

[0011]

According to a first aspect of the present invention, there is provided a printed circuit board in which a plurality of electronic components are mounted on a board body on which printed wiring is provided. An identification mark for indicating whether or not to mount the electronic component is provided on the electronic component and the electronic component mounting portion of the board body.

According to a second aspect of the present invention, in the configuration of the first aspect, the electronic component is a relay, and an identification mark is provided on the relay and a mounting portion of the relay on the board body.

According to a third aspect of the present invention, in the configuration of the first or second aspect, the identification mark of the electronic component mounting portion on the substrate body is printed by screen printing.

As described above, since the identification mark for indicating where the electronic component (relay in the second aspect) should be mounted on the substrate main body is provided on the electronic component and the substrate main body, the identification mark is provided. By mounting electronic components according to the above, erroneous mounting can be prevented.

In addition, since it is only necessary to attach an identification mark, instead of changing the color or shape of the entire part, such as by changing the color or shape of the whole part, the cost for this can be minimized.

In this case, if the identification mark of the electronic component mounting portion on the board body is provided by screen printing as in claim 3, the mark can be provided during the manufacturing process of the board body, so that the cost can be further reduced. it can.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following embodiment, two types of relays 12, 13 are connected to two sections C, D on a substrate body 11 in accordance with the description of the prior art.
, And terminal holes 14, 15,.

In each embodiment, an identification mark for indicating at which position on the board body 11 the two relays 12 and 13 are to be mounted is printed on the board body 11 and both relays 12 and 13 by screen printing (for example, silk printing). Screen printing).

That is, in the first embodiment shown in FIG. 1, the same identification marks 16 and 17 each having a horizontally long rectangle are provided on the upper surface of the first relay 12 and the first section C where the relay 12 is mounted. , The second relay 13 and the second
Nothing is provided in the section D.

In this case, the first relay 12 is connected to the mark 1
Are installed in the first section C as those having 6, 17;
At a glance, it is clear that the second relays 13 should be installed in the second section D as no-marks, so there is no risk of being mounted by mistake.

On the other hand, in the second embodiment shown in FIG. 2, the first relay 12 and the first section C are marked with "O" identification marks 18 and 19, respectively, and the second relay 13 and the second section D are marked with "." The identification marks 20 and 21 marked with “□” are provided.

In the third embodiment shown in FIG.
Since the relay 12 and the first section C are located on the left side, they are provided with the identification marks 22 and 23 of the initial letter “L” of the English letter “LEFT” of “left side”, and the second relay 13 and the second section C are provided. D is provided with identification marks 24, 25 of the initial letter "R" of the English letter "RIGHT" of the "right side".

If the corresponding identification marks are given to both the relays 12 and 13 and the substrate body 11 as described above, the relay installation position can be displayed more clearly not only by the presence / absence of the mark but also by the difference of the mark. The effect of preventing mounting is high.

The identification marks 16, 17, 18, and 19 in both the first and second embodiments may be painted in a color that can be distinguished from the ground color of the relay, or may be surrounded by a line around the mark. Good.

Other Embodiments (1) In the above embodiment, the same identification mark is provided on the relay side and the board main body side. However, for example, when a product number is displayed on the relay side, a lower part is provided on the board main body side. Different marks may be given to the relay side and the board body side, such as giving a two-digit number.

(2) Both relays 12,
One surface (for example, the upper surface) of 13 and the entire sections C and D may be colored.

(3) Substrate body 11 and relays 12 and 13
A printing method other than the screen printing method may be used as a means for providing an identification mark to the image forming apparatus, an adhesive tape may be attached, or a thin plate may be attached.

(4) In the above embodiment, the case where the two relays 12 and 13 are mounted on the board main body 11 is exemplified.
The present invention can be implemented in the same manner as in the above-described embodiment even when three or more relays are mounted, and when electronic components other than relays (for example, a microcomputer) are mounted.

[0029]

As described above, according to the present invention, an identification mark is provided on the electronic component and the board body, and the identification mark clearly indicates at which position on the board body the electronic component such as a relay is to be mounted. With this configuration, erroneous mounting of electronic components can be prevented.

Further, the identification is not required to be made based on the overall appearance, such as by changing the color or shape of the entire part, but the identification mark only needs to be attached, thereby minimizing the cost increase.

In this case, if the identification mark of the electronic component mounting portion on the board body is provided by screen printing as in the invention of claim 3, the mark can be provided during the manufacturing process of the board body, so that the cost can be further reduced. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a second embodiment of the present invention.

FIG. 3 is a perspective view showing a third embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

11 Board body 14,15 Terminal hole 12,13 Relay 12a ..., 13a ... Lead terminal 16,18,20,22,24 Identification mark on relay side 17,19,21,23,25 On board body side Identifying mark

Claims (3)

[Claims] In a printed circuit board in which a plurality of electronic components are mounted on a board body on which printed wiring is provided, an identification mark for indicating a position on the board body at which each of the electronic components is to be mounted is provided. And a printed circuit board provided on an electronic component mounting portion of the board body. 2. The electronic component is a relay.
2. The printed circuit board according to claim 1, wherein an identification mark is provided on a mounting portion of the relay on the board body. 3. The printed board according to claim 1, wherein the identification mark of the electronic component mounting portion on the board body is printed by screen printing.