JPH0410488A - Electronic circuit board - Google Patents

Abstract

PURPOSE:To ensure and to facilitate a recognition of available kind of device by providing plural recognition marks displayed on a surface of a circuit board and recognition component mount holes opened corresponding to said recognition marks respectively and mounting the recognition components which are proper to the component attachment holes. CONSTITUTION:On a circuit board 1, marks 4a, 4b, 4c, and 4d which display an arrangement of electronic circuit components are printed by a silk screen printing on a main plane 3 side. In the positions based on said marks, electronic circuit components such as switch 5, resistors 6a, 6b, and 6c are attached or connected to attachment holes 7a, 7b, 7c and 7d opened on the circuit board while inserting lead wires 8a, 8b, 8c and 8d of said electronic circuit components in these attachment holes 7a, 7b, 7c and 7d. Further, recognition marks 10a, 10b, 10c and 10d which recognize plural - for example - four kinds as A, B, C, D and which uses the same circuit pattern as the above predetermined circuit pattern are printed by a silk screen printing together with recognition component marks 12a, 12b, 12c and 12d. It becomes clear and easy to specify an available kind of device by confirming an insertion position of a jumper wire 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an electronic circuit board, and particularly to an electronic circuit board with improved identification.

(Prior art) As is well known, electronic circuits have recently come to be used to control household appliances such as electric washing machines, microwave ovens, and room air conditioners. In the production of control devices using electronic circuits, there is a need for ease of mass production, ease of parts management by standardizing parts, and reduction of parts prices.

Conventionally, the following methods have been used for electronic circuit boards used in control devices under such circumstances. That is,
For example, if the basic parts of the control device for electric washing machines are the same across multiple models, but there are slight differences in the electronic circuits due to differences in the specific specifications of each model, such as the destination, washing capacity, etc., the same electronic In order to use a circuit board to support multiple models, a unique identification symbol for each model was stamped on the electronic circuit board or marked with oil-based ink.

However, in the above-mentioned conventional technology, the stamped or marked mark may be rubbed by the hands of the worker or equipment used in the manufacturing process, erased, or smudged, making it difficult to identify a given model and causing misidentification. There are problems such as increasing the number of opportunities, making it impossible to identify the model, the problem of attaching the wrong model identification symbol because stamps and markings are done manually one by one, and the need to set up a process to attach the identification symbol. There was a problem in that additional man-hours were required for this purpose.

(Invention or Problem to be Solved) The present invention has been made in view of the situation of electronic circuit boards for devices that use the same circuit board to support a plurality of different models as described above. However, in addition to making it possible to identify compatible models reliably and easily,
An object of the present invention is to provide an electronic circuit board that does not require special man-hours for identification.

[Structure of the Invention] (Means for Solving the Problems) The electronic circuit board of the present invention includes a circuit board on which electronic circuit components are mounted, a plurality of identification symbols displayed on the surface of this circuit board, and identification symbols for these. It has an identification component mounting hole drilled in the circuit board corresponding to each symbol, and identification is performed by attaching a corresponding identification component to the identification component mounting hole corresponding to the desired identification symbol. That is.

(Function) The electronic circuit board configured as described above has an identification part attached to the hole with a predetermined identification symbol corresponding to the applicable model that uses this electronic circuit board. It is possible to reliably recognize that the electronic circuit board is of the corresponding model, and also to easily know that it is not applicable to other models. In addition, if the identification parts to be installed are those that constitute a prescribed circuit, there is no need to perform separate processing for identification, and if the identification parts to be installed are only for identification purposes, for example, if the identification parts to be installed are for the purpose of identification, for example, To prevent an incorrect model from being displayed by using an automatic component insertion machine when mounting other circuit components at the same time, and to eliminate the need for separate processing.

(Example) Examples of the present invention will be described below with reference to the drawings. 1st
The figure shows a plan view of the first embodiment. In the figure, reference numeral 1 denotes a circuit board mainly consisting of a board 2 made of an insulating material. Symbols 4a, 4b indicating the arrangement of electronic circuit components as shown
, 4c, 4d are printed by silk screen printing, and a switch 5 and a resistor 8a, 6b, 8c are placed at the respective positions based on each symbol.

Capacitors, integrated circuit elements, and light emitting elements (LE) (not shown)
Electronic circuit components such as semiconductor elements such as D) are mounted on the circuit board 1.
Lead wires 8a, 8b, 8c of electronic circuit components are attached to mounting holes 7a, 7b, 7c, and 7d formed in the holes 7a, 7b, 7c, and 7d.

8d is inserted and attached or connected. Note that a conductive portion 9 having a predetermined circuit pattern is provided on the back side of the circuit board 1, and the conductive portion 9 and the lead wires 8a, 8b, 8c, and 8d of the electronic circuit components are connected by soldering. .

Further, on the main surface 3 side of the circuit board 1, in addition to the symbol 4 indicating the arrangement of electronic circuit components, there are a plurality of circuit patterns, A, B, in this embodiment, using the same circuit pattern as this predetermined circuit pattern.
Identification symbols 10a, IOb, I for identifying four models C and D
Identification component symbols 12a, 12b, 12c, are placed near the identification component mounting holes 11a, llb, llc, and lid, which are formed in pairs on the circuit board 1 with nc and 10cl.
! It is written by silk screen printing along with 2d. Furthermore, FIG. 1 shows a case where the electronic circuit board of the present invention is applied to model B out of four models, and an identification component mounting hole 11b marked with an identification symbol 10b corresponding to model B is provided with an identification part. A jumper wire 3, which is a component, is attached at its both ends to the conductive part 9 on the back side of the circuit board 1 by soldering, and is connected in series to the circuit in which the switch 5 is inserted. The jumper wire 13 is inserted into the identification component mounting hole 11b simultaneously with the resistor 6a of the electronic circuit component, which is different among the four models, by an automatic component insertion machine, for example.

With this configuration, the usable model can be clearly and easily identified by confirming the insertion position of the jumper wire 13, thereby eliminating the need for marking or stamping with oil-based ink.

This eliminates the problem of the identification symbol disappearing or becoming unclear during the manufacturing process, which makes it difficult to identify the model, which is useful for manufacturing and parts management. In addition, since the jumper wire 13 is inserted into the circuit board 1 at the same time as other electronic circuit components using an automatic component insertion machine, there is no possibility of human error and no additional processing man-hours are required. .

Next, a second embodiment will be explained using the drawings. FIG. 3 is a plan view of a circuit board which is the main part of the second embodiment of the present invention.
The same parts as in FIGS. 1 and 2 are given the same reference numerals. In the figure, reference numeral 301 is a circuit board, and on the main surface 303 side of this circuit board 301 are symbols 4a, 4b, 4c, 4d indicating the arrangement of electronic circuit components, and the same circuit pattern as in the first embodiment. Identification symbols 310a and 310b identify the four models used.

Identification component symbols 312a, 312b, 312c,
It is written by silk screen printing along with 312d. Further, a conductive part 309 having a predetermined circuit pattern is provided on the back side of the circuit board 310.
and identification component mounting holes 311a, 311b, 311c, 31
It is not electrically connected to 1d, and the identification symbol for identifying the model forms an independent area.

With this configuration, the same circuit pattern can be widely applied to models that have only a part in common, and when inserting identification parts corresponding to the identification symbol of the corresponding model into the circuit board, By inserting it simultaneously with at least some of the electronic circuit components, the first
The same effects as in the embodiment can be obtained.

Furthermore, a third embodiment will be explained using the drawings.

FIG. 4 is a plan view of a circuit board which is a main part of a third embodiment of the present invention, and the same parts as in FIGS. 1 and 2 are given the same reference numerals. In the figure, reference numeral 401 is a circuit board, and on the main surface 403 side of this circuit board 401 are symbols 4b, 4c, 4d indicating the arrangement of electronic circuit components, and 4 using the same circuit pattern as in the first embodiment. Identification symbols 410a, 410b, 410c for identifying the model.

410d are electronic circuit component mounting holes 411a, 411b, and 411c that also serve as identification components drilled in the circuit board 401.
, 411d, there is an electronic circuit component symbol 412 for identification.
a, 412b.

It is written by silk screen printing along with 412c and 412d. Note that the electronic circuit component that also serves as the identification component may be an electronic circuit component, such as a resistor, which has different values for each of the four models using the same circuit pattern. Further, a conductive part 409 with a predetermined circuit pattern is provided on the back side of the circuit board 401, and the corresponding identification electronic circuit component is selected and mounted at a predetermined position of the conductive part 409, as shown in FIG. An electronic circuit component mounting hole 411a that also serves as an identification component is provided so that a circuit is formed by
, 411b.

The holes 411c and 411d form a pair.

With this configuration, there is no need to provide special parts for model identification, and there is no need for additional man-hours to insert identification parts into the circuit board.
The same effects as in the embodiment can be obtained.

[Effects of the Invention] As is clear from the above, according to the present invention, the following effects can be obtained. In other words, when using the same circuit board for multiple different models, it is possible to reliably and easily identify the compatible model, and there is no need for additional man-hours to add symbols for identification, making it easy to manage parts. However, since it is easy to identify and does not require special management, it has the effect of not increasing prices.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the first embodiment of the present invention, and FIG. 2 is a plan view of the first embodiment of the present invention.
FIG. 3 is a plan view of the circuit board of the second embodiment of the present invention, and FIG. 4 is a plan view of the third embodiment of the present invention. ■...Circuit board, 10a, lOb, lOc, 10d...Identification symbol, 1
1a, 11b, 11c, lld--Identification component mounting hole, 13...Jumper wire.

Claims (1)

[Claims] It has a circuit board on which electronic circuit components are mounted, a plurality of identification symbols displayed on the surface of the circuit board, and identification component mounting holes drilled in the circuit board corresponding to each of these identification symbols, An electronic circuit board characterized in that the electronic circuit board is identified by mounting an identification component corresponding to the identification component mounting hole corresponding to the desired identification symbol.