JPS5821191Y2 - Printed board - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a printed circuit board that facilitates the work of connecting two printed circuit boards.

Generally, electrical components such as capacitors and resistors are mounted on a printed circuit board, and a circuit pattern (printed circuit) is formed on both sides or one surface by a well-known printed wiring method. When making electrical and mechanical connections, two methods are generally used: connectors and wrapping.

In other words, the former connector connection method involves attaching a male or female connector to two printed circuit boards, and soldering the terminals to the pattern part of each printed circuit board by dip soldering (soldering tape). When mounting and assembling on equipment, etc., a cord with a connector of a separate assembly is inserted and connected to the connector of each printed circuit board.

On the other hand, in the wrapping connection method, one end of a wire made of a single core, flat cable, shielded wire, etc. is soldered to the pattern part of one printed circuit board using a solder dip, and a wrapping terminal block is connected to the other printed circuit board using a solder dip. The wire is fixed, and the other end of the wire is wrapped around a wrapping terminal block during assembly work.

However, in the former case, although the connection work using the connector-equipped cord is easy, assembly of the connector-equipped cord is time-consuming, and poor contact is likely to occur.

Further, connection using a connector has disadvantages such as high cost.

On the other hand, although the latter has the advantage that the parts are cheaper and cheaper than the former, the assembly work is troublesome and takes a long time because it requires wrapping work for each wire one by one, and incorrect wiring is likely to occur. It also had drawbacks such as not having a very good appearance.

This idea was made in view of the above-mentioned drawbacks, and the purpose is to provide a printed circuit board that can be easily and quickly soldered, and with less risk of connection errors.
The feature is that a dividing line is formed on the printed circuit board, and the printed circuit board can be divided into multiple divided board pieces along this dividing line, and the divided end of one divided board piece can be connected to this. The present invention is based on the provision of a recessed portion that can be engaged with an electrical connection provided on another printed circuit board to make a solder connection.

Hereinafter, one embodiment of the printed circuit board according to this invention will be described in detail based on the drawings.

FIGS. 1a and 1l) are a plan view and a sectional view of the main parts of a printed circuit board according to this invention.

In the figure, what is indicated by reference numeral 1 is a printed circuit board, and this printed circuit board 1 is divided into two divided board pieces 3A and 3B along this dividing line 2 by forming a dividing line 2 by a perforation hole 2a or the like. Circuit elements such as a transistor 4, a resistor 5, and a capacitor are mounted on its surface.

On the other hand, a predetermined circuit pattern 6 is printed and wired on the back side of each divided board piece 3A, 3B of the printed circuit board 1, and the terminal 7 (or lead wire) of the circuit element is connected to the solder 10 on this circuit pattern 6. electrically connected by.

Further, one end of the circuit pattern 6 is connected to each divided board piece 3.
It faces the divided end A of A and 3B.

Further, a plurality of through holes 8 for inserting lead wires are bored in the printed circuit board 1 at positions on both sides of the dividing line 2 and corresponding to the ends of the circuit pattern 6, and these lead wire insertion holes 8 are formed on both sides of the dividing line 2 and at positions corresponding to the ends of the circuit pattern 6. The ends of the jumper lead wires 9 are inserted into the through holes 8 which are opposed to each other with the dividing line 2 of the through holes 8 in between.

The ends of the jumper lead wires 9 are respectively connected to the ends of the circuit pattern by solder 10, thereby dividing both divided board pieces 3A along the dividing line 2.
, 3B are mechanically connected, and the circuit patterns 6 of the side substrate pieces 3A, 3B are electrically connected.

By the way, the above-mentioned printed circuit board 1 is, for example,
Although the structure is exactly the same as the splittable printed circuit board disclosed in Publication No. 3-24031, in this invention, at least one of the two split board pieces 3A and 3B, for example, a split board piece By drilling a recess 11 for connecting an electrical connection object in the divided end A of 3A, the divided board piece 3A can be mechanically and electrically connected to another printed circuit board as described later. It has major characteristics.

In this case, the recess 11 is located along the dividing line 2 as shown in the figure.
Although the perforation hole 2a is formed so as to communicate with each perforation hole 2a constituting the perforation hole 2a, it is not necessarily limited to this.
The perforations may be made between adjacent perforations 2a as long as they correspond to the ends of each circuit pattern 6 provided on the divided board piece 3A.
If the perforation hole 2a is formed long in the direction orthogonal to the perforation hole 2a, the recess 11 may also serve as the perforation hole 2a.

Next, a method of connecting the printed circuit board configured as described above to another printed circuit board will be explained based on FIGS. 2a to 2d.

First, the printed circuit board 1 is divided into two divided board pieces 3A and 3B along the dividing line 2, as shown in FIG.

In this case, it goes without saying that the divided board pieces 3A and 3B are connected to each other by jumper lead wires 9.

Next, the divided substrate piece 3A in which the recess 11 is formed is turned over and lifted upward as shown in the figure, so that the divided end A is directed outward.

At this time, it is desirable to keep the middle part of the jumper lead wire 9 in an inclined state so that it does not sag significantly as shown by the chain line, and also to prevent the divided board pieces 3A and 3B from significantly overlapping each other. 12 in FIG. C is another printed circuit board to which the divided board piece 3A is mechanically and electrically connected.
A pin stand 13 is fixed to the connection side end of the surface thereof.

A plurality of pins 14 are implanted in this pin stand 13 in correspondence with each recess 11 of the divided board piece 3A, and the lower ends of the pins 14 penetrate through the printed circuit board 12 to form each circuit pattern formed on the back surface. It is electrically connected to the end of 15 by solder 16.

Therefore, the mechanical and electrical connection between the printed circuit board 12 and the divided board piece 3A is achieved by inserting each pin 14 into the corresponding recess 11 of the divided board piece 3A as shown in FIG. , each pin 14 and the portion surrounding each recess 11 of the circuit pattern 6 of the divided board piece 3A may be connected with solder 17.

As a result, the circuit pattern 15 of the other printed circuit board 12 and the circuit pattern 6 of the divided board piece 3A are electrically and mechanically connected via the pins 14.

As explained above, according to the printed circuit board according to the present invention, at least one of the divided board pieces of the printed circuit board formed so as to be divided has a divided end portion and a position corresponding to the circuit pattern for connecting an electrical connection. Since the recess is formed, the electrical connection object and the divided board pieces can be easily connected by inserting the electrical connection object into the recess and making a solder connection.

Furthermore, the formation of the recess is done at the same time as the formation of the dividing line, so it is not only easy, but compared to the conventional connection method using connectors or wrapping, there is only a recess on the divided board piece, and no connectors, wrapping terminals, etc. are required. Therefore, the structure is simple, connection work can be performed quickly, and there is little risk of wiring mistakes, which has great effects.

[Brief explanation of drawings]

Figures 1a and 1) are plan views and sectional views of essential parts showing an embodiment of the printed circuit board according to this invention, and Figures 2 a to d are explanatory diagrams for explaining the method of connecting two printed circuit boards. It is. 1... Printed circuit board, 2... Parting line,
2a...Perforation hole, 3A, 3B...Divided board piece, 6...Circuit pattern, 8...
・Through hole for inserting lead wire, 9...Jumper lead wire, 11...Recess, 12...Printed circuit board, 14...Pin, A... ...Split end.

Claims (2)

[Scope of utility model registration request] (1) A dividing line such as a perforation hole is formed on the printed circuit board, and the printed circuit board is formed so as to be separable into a plurality of divided board pieces along this dividing line, and the ends of jumper lead wires are placed on both sides of the dividing line. Form a through hole for inserting the
In the printed circuit board in which the pattern portions provided on each divided board piece are electrically connected by the jumper lead wire, a recess for connecting another electrical connection object is provided in at least one divided end of the divided board piece. A printed circuit board characterized in that a printed circuit board is formed at a position corresponding to a pattern section. (2) The printed circuit board according to claim 1, wherein the recess is also used as a dividing line.