JPS5856993B2 - print bantounoshiyuruibunruihou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for classifying types of printed boards, etc., for electrically classifying types of printed boards, etc. constituting unitized electronic circuits.

A conventional method for classifying types of printed boards is a method of classifying printed boards based on combinations of plugs.

According to this method, for example, if two plugs on a printed board are used, two types of plugs can be selected depending on whether or not there is a connection between the two plugs.
If one is used, the combination of presence/absence of connection between each plug will result in 5
Types can be classified.

However, in actual electronic devices, a large number of printed circuit boards, for example 20 to 30, are often used, and for this reason, the conventional method requires a large number of plugs, for example 4 to 5, for input/output signals. The problem was that the number of plugs was insufficient.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a simple method for classifying types of printed boards, etc., which can classify a large number of types of printed boards, etc. using a small number of terminals.

The present invention uses at least two predetermined specific terminals of each printed circuit board, etc., connects classification elements with different electrical characteristics between both terminals, detects the electrical characteristics of the elements, and detects the characteristics. This is a method for classifying types of printed boards, etc., which is characterized by classifying types of printed boards, etc. based on differences.

Next, the present invention will be explained in detail according to the drawings.

FIG. 1 is a partial plan view showing an embodiment of the printed board type classification method according to the present invention, in which 1 is a printed board, 2 is a plug, 3 is a copper foil, and 4 is an element such as a resistor. It is.

In FIG. 1, two predetermined connectors 2 on a printed board 1 are used, and one resistor with a different resistance value or a different type of resistor or diode is inserted between the two connectors for each printed board. A classification element 4 such as a capacitor or a capacitor is connected via a copper foil 3.

FIG. 2 is a circuit diagram showing the connection of the classification element 4 of FIG. 1.

In the present embodiment, as shown in FIG. Since the voltage (1) or the current (2) shown in Figure 2 can be arbitrarily changed for each printed board, each of the 10 types of printed boards can be classified by detecting this voltage (1) or (2).

FIG. 3 is a partial plan view showing another embodiment of the printed board type classification method according to the present invention, in which the same reference numerals as in FIG. It is an element for

In FIG. 3, three predetermined connectors 2 on each printed board 1
Two classification elements 5 and 6, such as resistors with different resistance values or different types of resistors, diodes, and capacitors, are connected via the copper foil 3 for each printed board.

FIG. 4 is a circuit diagram showing the connection of the classification element 4 of FIG. 3.

In this embodiment, as shown in FIG. 3, the electrical characteristics of the two classification elements 5 and 6 connected using the three determined plugs 2 are arbitrarily changed for each valley printed board. Since the value of voltage (2) can be arbitrarily changed for each printed board with respect to voltage (3) in FIG. 4, the printed boards 10i can be classified by detecting the value of voltage (2).

In the above embodiment, a case has been described in which two or three plugs are used to connect one or two classification elements, but the number of plugs and classification elements can be increased as necessary.

Further, in the above embodiment, a case where a plug on a printed board is used is described, but the connector is not limited to a plug, and a connector or other external terminal may be used.

Further, although the above description has been made regarding a printed board, the present method can be applied not only to printed boards but also to chassis and the like constituting unitized electronic circuits.

As described above, according to the method for classifying types of printed boards, etc. of the present invention, classification can be performed using at least two fixed terminals of printed boards, etc. and an inexpensive classification element, which is extremely simple and economical. be.

Furthermore, if the number of lead-out terminals is large due to the circuit configuration, the number of circuits that can be incorporated into one printed board is determined by the number of terminals, so if a large number of terminals are required for classification, the number of circuits will be limited accordingly. Therefore, circuits are often divided, but with this method, at least two terminals need to be used, increasing the number of circuits that can be incorporated into a single printed board, etc., and reducing the rate of circuit division. The effect is also useful in improving the performance of circuits incorporated in printed boards and the like.

[Brief explanation of drawings]

FIG. 1 is a partial plan view showing an example of the printed board type classification method according to the present invention, FIG. 2 is an element connection circuit diagram of FIG. 1, and FIG. 3 is a printed board type classification method according to the present invention. FIGS. 4A and 4B are partial plan views showing other embodiments, and are element connection circuit diagrams of FIG. 3. Explanation of symbols, 1...Printed board, 2...
・Terminals, such as plugs, 3...Copper foil, 4-6...
...Classification element.

Claims (1)

[Claims] 1 Between at least two determined external lead-out terminals of each printed board, etc. that constitute a unitized electronic circuit,
A method for classifying types of printed boards, etc., in which classifying elements each having a different electrical time are connected, the electrical characteristics of the classifying elements are detected, and the types of printed boards, etc. are classified based on the difference in the characteristics.