JPS5933122Y2 - Laminated busbar for printed circuit boards - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a power supply laminated busbar mounted on a printed circuit board.

Conventionally, when a required number of electronic circuit components such as dual in-line packaged ICs are mounted on a printed circuit board and the required power is supplied to these electronic circuit components using a laminated busbar, the electrical noise generated within the electronic circuit is transmitted to the power supply line. A power supply bypass capacitor was prepared separately to prevent it from flowing into the ground line, and was mounted using a dedicated mounting hole.

As a result, the printed wiring for signals often becomes densely packed in some areas, and as a result, the wiring itself has to be bent in many cases, which also limits the effective area for mounting components.

Furthermore, electrical noise generated in other electronic circuits may flow into the electronic circuit through the laminated bus bar and have an adverse effect.

The present invention effectively solves the above-mentioned problems, is easy to implement, does not affect the signal printed wiring of the electronic circuit at all, and is designed to reduce the amount of electricity generated within the electronic circuit and other electronic circuits. The object of the present invention is to provide a laminated busbar for printed circuit boards that can quickly block noise.

According to the present invention, in order to greatly increase the capacitance per unit length of a pair of power supply bus bars with one side grounded, one electrode plate having a comb-shaped protruding plate on one side is used. In contrast, the protruding plates are intertwined with each other, and a plate-shaped insulating material is sandwiched between the protruding plates, and as a result, the busbar has the function of a bypass capacitor, and is configured to be easily mounted on a printed circuit board. This goal can be achieved by

The present invention will be explained below with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing an example of the structure of a conventional laminated bus bar for printed circuit boards.

As shown in FIG. 1, the conventional laminated busbar 5 for printed circuit boards is a power source equipped with terminal portions 1 and 1' integrally formed with a required interval and number of terminals that protrude in a direction perpendicular to the longitudinal direction of the laminated busbar. Electrode plates 2 and 2', which also serve as busbars, sandwich an insulating material 3, which is covered with an exterior material 4 such as resin, and is formed into a band shape with a size suitable for mounting.

In the laminated busbar 5 formed in this way, the capacitance per unit length is on the order of several hundred PF, which is insufficient for the laminated busbar 5 to play the role of a power supply bypass capacitor. .

Therefore, as shown in FIG. 2, a laminated busbar 1 for a printed circuit board according to an embodiment of the present invention has a terminal portion 1 and a terminal portion 1 which are integrally formed with the required spacing and number of pieces and protrude in a direction perpendicular to the longitudinal direction of the laminated busbar. Comb-shaped protruding plates 6 and 6' are provided on one side of the flannel electrode plates 2 and 2', respectively, and plate-shaped protruding plates 6 and 6' are installed in the bent gaps created by inserting and assembling them into each other. After sandwiching an insulating material 3 and covering these with an exterior material 4 such as resin,
It is configured in a band shape with dimensions suitable for mounting.

The capacitance per unit length of the laminated busbar 1 for printed circuit boards formed in this way can be several hundred times or more that of the conventional laminated busbar 5 for printed circuit boards.

As a result, this multilayer busbar I forms a capacitor with high distributed capacitance in the power supply line, which is advantageous in further reducing the impedance of the power supply line, and reduces residual electrical noise generated in the electronic circuit. Not only can it prevent the electrical noise from flowing into other electronic circuits, but it can also quickly prevent electrical noise generated in other electronic circuits from flowing into the electronic circuit and having a negative impact. be.

By using the main laminated busbar 7 in the housing, there is no need to newly install a power supply bypass capacitor, and therefore there is no need to provide a mounting hole dedicated to the power supply bypass capacitor, so the signal print of the electronic circuit can be There is no problem with wiring at all, and the effective area for mounting components can be expanded.

Furthermore, the number of man-hours can be reduced in the process of manufacturing printed circuit boards and mounting components, and the laminated bus bar 7 itself has a simple structure, so it can be mass-produced at low cost.

The present laminated busbar 1 can be particularly effective when used in printed circuit boards for computers that use a large number of dual-line packaged ICs.

Furthermore, if a larger capacitance is required in this laminated bus bar 7, this purpose can be achieved by using a high dielectric material such as ceramic or tantalum in place of the insulating material 3 of this embodiment. I can do it.

Although the present invention has been described in detail above, it goes without saying that the materials used and other modifications and changes may be made without departing from the spirit of the vehicle invention.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing an example of the structure of a conventional laminated bus bar, and FIG. 2 is a partially cutaway perspective view showing an embodiment of the present invention. In the figure, 1, 1'...terminal section, 2, 2'...
... Electrode plate, 3 ... Insulating material, 4 ...
...Exterior material, 5...Conventional laminated bus bar for printed circuit board, 6.6'...Protruding plate, I...
...A laminated bus bar for printed circuit boards according to an embodiment of the present invention.

Claims (1)

[Scope of utility model registration request] A laminated busbar for power supply mounted on a printed circuit board includes l pairs of electrode plates each having a comb-shaped protruding plate on one side, the protruding plates are intertwined, and a plate-shaped insulating material is sandwiched between them in a bent manner. A laminated busbar for printed circuit boards characterized by the following structure: