JPH0338844Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a universal printed circuit board, and more specifically to a four-layer universal printed circuit board.

"Prior Art" In a conventional four-layered printed circuit board, each of the four layers has only a line pattern, and the four layers are arranged so that these lines form a grid pattern. For this reason, the range of use of the two-layer and three-layer patterns is limited, and they can only be used for one circuit. Therefore, it could only be used in shield circuits, power supply circuits, and ground circuits.

``Problems to be solved by the invention'' This invention was devised in view of the above points.One layer on the front side and four layers on the back side are made into a dot pattern, and the second and third layers are placed at key points of the dot pattern. By making it possible to extract the line pattern of the layer,
This was done to increase the range of use of two-layer and three-layer patterns, and thereby solve the above problems.

``A means to solve problems'' and its characteristics are rectangular,
A dot pattern 2' consisting of perfectly circular rounds 2a having a large number of through holes arranged at equal intervals in the longitudinal direction and the width direction is formed, and in the dot pattern 2', perfectly circular rounds 2a are formed. In a row of perfectly circular rounds 2a' located at positions that divide the row of rows into several equal parts in the longitudinal direction, rounds 2b, 2b of a desired shape having through holes for taking out the pattern of the two-layer 4 are placed in a row of perfectly circular rounds 2a'. Rounds 2c, 2c of a desired shape and having through holes for taking out the pattern of the three layers 5 are placed in rows of perfectly circular rounds 2a'' that are placed on both sides of the round 2a and divided into several equal parts in the width direction. A circular round 2a is provided on both sides, and further outside the dot pattern 2',
On the side of the dot pattern 2', the dots are located at equal intervals to the perfectly circular rounds 2a and between the adjacent perfectly circular rounds 2a, 2a, and are located in the middle of the desired shaped rounds 2b, 2b. Rounds 2 of desired shape with through holes connecting the rounds at the ends of the pattern of two layers 4 connecting the rounds
b', 2b' are provided, and the perfectly circular round 2a is provided above and below the dot pattern 2'.
Perfect circular rounds 2 that are spaced equally and adjacent to
Rounds 2c', 2c having a desired shape and having a through hole that connects the round at the end of the three-layer pattern 5, which is located between the rounds 2c, 2a and connects the middle round to the desired shape rounds 2c, 2c. ', and the rounds 2b and 2 of the desired shape sandwiched between the first layer 2 and the fourth layer 3.
Round 4 with middle through hole in b
perfect circular rounds 2a, 2a in the dot pattern 2', connecting the rounds 4a', 4a' having through holes at both ends to the rounds 2b', 2b' of the desired shape; Two layers 4 with line patterns 4b extending in the longitudinal direction between them, and rounds 5a, 5a having a through hole in the middle of the rounds 2c, 2c having the desired shape.
The rounds 5a' and 5a' having through holes at both ends are connected to the round 2 of the desired shape.
The universal printed circuit board is comprised of three layers 5 on which line patterns 5b, 5b extending in the width direction between the perfectly circular rounds 2a, 2a in the dot pattern 2' are connected to the dot patterns 2a, 2c'.

"Embodiments" The present invention will be described in more detail below with reference to illustrated embodiments.

FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of patterns of each layer from one layer to four layers.

In the figure, 1 is a rectangular universal printed circuit board consisting of four layers, one layer 2 on the front surface with a dot pattern, four layers 3 on the back surface, and a line pattern sandwiched between these one layer 2 and four layers 3. It consists of two layers 4 and three layers 5.

Further, the first layer 2 and the fourth layer 3 have the same pattern, so only the pattern of the first layer 2 will be explained here. Regarding the four layers shown in FIG. 2D, the same parts as those in the single layer shown in FIG. 2A are given the same reference numerals, and a detailed explanation will be omitted.

As shown in FIG. 2A, the first layer 2 includes a perfectly circular round 2a having a large number of through holes arranged at equal intervals in the longitudinal direction (horizontal direction) and width direction (vertical direction). While forming a dot pattern 2', in the dot pattern 2',
A row of perfectly circular rounds 2a in the longitudinal direction (horizontal direction)
An elliptical round 2 having a through hole for taking out two consecutive two-layer patterns 4 in a row of perfectly circular rounds 2a' located at positions dividing the round into thirds.
b, 2b are provided with one perfect circular round 2a sandwiched therebetween, and a pattern of two consecutive three-layered rounds 5 is provided in a row of perfect circular rounds 2a'' located at the center in the width direction (vertical direction). A rectangular round 2c having a through hole for taking out the dots, and one perfectly circular round 2a of 2c are provided between them, and furthermore, outside the dot pattern 2', on both sides of the dot pattern 2', the perfectly circular round 2a is provided. At the end of the pattern of the double layer 4, which is located at equal intervals with the shaped rounds 2a and between the adjacent perfectly circular rounds 2a, 2a, and connects the middle round to the elliptical rounds 2b, 2b. Oval shaped rounds 2b' and 2b' having through holes connecting the rounds are provided, and adjacent perfect circular rounds 2a are provided above and below the dot pattern 2' at equal intervals to the perfect circular round 2a. A rectangular round 2 having a through hole located between the rounds 2a, 2a and connecting the round at the end of the three-layer pattern 5, which connects the middle round to the rectangular rounds 2c, 2c.
c' and 2c are provided.

Further, in the second layer 4, as shown in FIG. 2B, rounds 4a, 4a having through holes in the middle are connected to the elliptical rounds 2b, 2b, and rounds 4a' having through holes in both ends are connected. ，
4a' to the elliptical rounds 2b', 2b', forming line patterns 4b, 4b extending in the longitudinal direction (lateral direction) between the perfectly circular rounds 2a, 2a in the dot pattern 2'. ing. The two line patterns 4b, 4b form a set, and the spacing between them is adapted to the width of the IC.

In addition, in the third layer 5, as shown in FIG. 2C, rounds 5a, 5a having through holes in the middle are connected to the rectangular rounds 2c, 2c, and rounds 5a' having through holes in both ends are connected. ，
5a' to the rectangular rounds 2c', 2c, forming line patterns 5b, 5b extending in the width direction (vertical direction) between the perfectly circular rounds 2a, 2a in the dot pattern 2'. There is. Incidentally, the line patterns 5b, 5b form a set of two, and the mutual spacing is adapted to the width of the IC, similar to the line patterns 4b, 4b.

``Effect of the invention'' Since the invention has the above-mentioned configuration, it is possible to extract the line patterns of the second and third layers to key points of the dot patterns in the first layer on the front surface and the four layers on the back surface. Therefore, it can be used for a wider range of purposes than conventional methods. In addition, the elliptical rounds 2b, 2b for extracting the line patterns 4b, 4b of the second layer 4 into the first layer 2 and the fourth layer 3 are arranged in the longitudinal direction (lateral direction) of the rows of perfect circular rounds 2a in the dot pattern 2'. Line patterns 5 of three layers 5 are arranged in the width direction (vertical direction) at positions divided into several equal parts in the
The rectangular rounds 2c and 2c for extracting b and 5b into one layer and four layers are arranged in the longitudinal direction (horizontal direction) at positions that divide the layers into several equal parts in the width direction (vertical direction), so that the whole is divided into several equal parts. Since it is divided into blocks (six blocks in the illustrated embodiment), the universal printed circuit board 1 can be used for each block, and can also be cut into blocks for practical use. There are many ways to benefit from it.

[Brief explanation of the drawing]

Figure 1 is a plan view of an embodiment of the present invention, Figure 2A
~D are explanatory diagrams of patterns of each layer from the first layer to the fourth layer. 1... Universal printed circuit board, 2... Single layer, 2'... Dot pattern, 2a... Perfect circular round, 2b, 2b... Oval shaped round,
2c, 2c'... Rectangular round, 3... Four layers,
4...Two layers, 4a, 4a'... Round line pattern, 4b... Line pattern, 5... Three layers, 5a, 5
a'... Round line pattern, 5b... Line pattern.

Claims (1)

[Scope of utility model registration request] A dot pattern 2' consisting of perfectly circular rounds 2a having a rectangular shape and a large number of through holes arranged at equal intervals in the longitudinal direction and the width direction is formed, and in the dot pattern 2', a perfectly circular dot pattern 2a is formed. A double layer 4 is placed in a row of perfectly circular rounds 2a' located at positions that divide the row of round 2a into several equal parts in the longitudinal direction.
Rounds 2b, 2b of a desired shape having through-holes for taking out the pattern are provided on both sides of the perfectly circular round 2a, and rows of perfectly circular rounds 2a'' are placed in positions that are divided into several equal parts in the width direction. , rounds 2c, 2c of a desired shape having through-holes for taking out the pattern of the three layers 5 are provided sandwiching the round 2a of a perfect circular shape, and further outside the dot pattern 2', on the side of the dot pattern 2'. ,
A pattern of two layers 4 located at equal intervals to the perfectly circular rounds 2a and between the adjacent perfectly circular rounds 2a, 2a, and connecting the intermediate round to the desired-shaped rounds 2b, 2b. Rounds 2b', 2b' of a desired shape having through holes connecting the ends of the rounds are provided, and above and below the dot pattern 2' there are provided round circles 2b' and 2b' that are adjacent to each other at equal intervals to the perfectly circular round 2a. A round having a desired shape and having a through hole located between the circular rounds 2a, 2a and connecting the round at the end of the three-layer pattern 5, which connects the middle round to the desired shape rounds 2c, 2c. 2c', 2c', the first layer 2 and the fourth layer 3, and the rounds 2b, 2b of the desired shape, which are sandwiched between the first layer 2 and the fourth layer 3, and the rounds 4a, 4a having a through hole in the middle part. and connects the rounds 4a', 4a' having through holes at both ends to the rounds 2b', 2b' of the desired shape, in the dot pattern 2'.
a double layer 4 with a line pattern 4b extending in the longitudinal direction between a and a round 2 having the desired shape;
The dot pattern connects the rounds 5a, 5a having through-holes in the middle to c, 2c, and connects the rounds 5a', 5a' having through-holes at both ends to the rounds 2c', 2c' of the desired shape. A universal printed circuit board consisting of three layers 5 on which line patterns 5b, 5b are formed extending in the width direction between the perfectly circular rounds 2a, 2'.