JPS5966111A - Electronic part assembly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an assembly in which a plurality of electronic components are fixed together.

For example, smoothing capacitors for switching power supplies used in high frequency bands are required to have a large capacity. ] In order to make a capacitor human-sized, it is sufficient to increase its external size to 1, but this is limited due to handling and manufacturing considerations, so generally multiple capacitors are connected in parallel. It is being done to Specifically, as shown in the first figure, the connection electrodes 3 of the multilayer capacitor 2 are sequentially fixed to the common terminal 1 with solder 4, or as shown in the second figure, a plurality of densities 2 are connected in multiple stages. , they are stacked in multiple rows and all the connecting electrodes 3 are conductively fixed together with half lI]4. However, the former has very poor workability, is not suitable for mass production, and uses a common terminal 1, so it has the disadvantage that the influence of inductance and resistance increases when used in a high frequency band. In addition, the latter has a problem in that it is not possible to obtain a very small equivalent series inductance due to the skin current that flows when the device is used in a high frequency band.

The present invention has been made in view of the above points, and is characterized in that the connection electrodes of a plurality of electronic components stacked in multiple stages and/or rows are fixed with -C solder through a metal mesh. We provide electronic component assemblies that will help you! It is something that will help you. That is, in the present invention, as shown in the third diagram, capacitors 'lJ2 each having connection electrodes 3 provided at both ends thereof are stacked in multiple stages so that the ends provided with each connection electrode 3 are arranged side by side on the same plane. The cars are stacked in multiple rows, and a conscientious gold fX mesh 5 made of, for example, copper is brought into contact with the end faces of these, and all the connection electrodes 3 and the metal mesh 5 are integrally soldered (not shown). ). In other words, through the metal net 5,
1), the surface area as a conductive part is greatly increased, and the equivalent series inductance is minimized.
This is a unique item.

The shape of the money l1iX silk body 5 is arbitrary, and it goes without saying that one with a large surface area is preferable. Also, in the drawing, the metal mesh 5 is shown to be larger than the entire end surface of the assembled two-dimensional grid 2, but the size can be arbitrary as long as all the connection electrodes 3 can be fixed conductively.
In the case of a large item as shown in the figure, it is possible to bend the periphery and secure it. Further, if it is necessary to lead out external terminals from the assembly, a part of the metal mesh body 5 may be configured in advance so that it can be led out by a terminal part door. Furthermore, the electronic components to be assembled are not limited to capacitors, and their shapes, numbers, and stacking conditions are not limited to those illustrated.

As described above, the electronic component assembly t of the present invention has stable characteristics with a small equivalent series inductance even when used in a high frequency band because the connecting electrodes are fixed by soldering through the metal mesh. It is especially effective when applied to smoothing capacitors in high-frequency switching power supplies. In addition, in the present invention, soldering is performed using a metal net, and its manufacture is not complicated at all, and it is suitable for mass production.Furthermore, the shapes of the aggregates C can be made into any desired shape. This is a great excuse because it has excellent versatility.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are both perspective views showing a conventional electronic component assembly, and FIG. 3 is a front view showing an embodiment of the electronic component assembly of the present invention. 2-Electronic component 3-Connection electrode 5-Metal mesh patent applicant Murata Manufacturing Co., Ltd. Figure 1 Figure 2 Figure 514

Claims (1)

[Claims] A plurality of electronic components each having connection electrodes provided at their ends are stacked in multiple stages and/or rows, and the end surfaces of each connection electrode provided with connections are arranged side by side on the same plane. Contact the metal mesh body and make all connections 71? 4'! ! An electronic component assembly comprising: and a metal net, which are fixed together by solder.