JPH0543509Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a spacer with a ferrite bead core that removes spike noise from transistors, MOSFETs, and diodes used for turning on/off high potentials.

[Conventional technology]

FIG. 4 shows how a conventional ferrite bead core is used.

In the figure, 1 is a transistor, MOSFET,
Or a diode (hereinafter simply referred to as a semiconductor element), 1a is a terminal of the semiconductor element 1, 2 is a ferrite bead core, and two terminals 1a at both ends of the three terminals 1a are inserted. Semiconductor element 1
is mounted on the substrate 3 after its terminal 1a is inserted into the ferrite bead core 2.

In this way, the conventional ferrite bead core 2
is attached to terminal 1a at both ends, so
Spike noise of the semiconductor element 1 can be removed.

[Problem that the invention attempts to solve]

However, the conventional ferrite bead core 2
In order to insert the terminal of the semiconductor element 1 through this,
When the pitch of the terminals 1a is small, the following problems occur.

Terminal 1a adjacent to ferrite bead core 2
, and the insulation between the terminals 1a deteriorates.

Since the ferrite bead core fitted into one terminal interferes with the other adjacent terminal, it is difficult to insert the terminal 1a into the same core 2. Therefore, in some cases, it is necessary to perform forced forming of the terminals.

This idea was made to solve the above-mentioned problems, and aims to provide a spacer with a ferrite bead core that can maintain the insulation properties of the terminals of transistors, MOSFETs, or diodes, and that makes it easy to insert the terminals. purpose.

[Means for solving the problem] The spacer with a ferrite bead core provided by this invention can be inserted into a terminal insertion hole through which a terminal of a transistor, MOSFET, or diode used for turning on/off a high potential is inserted. An insulating spacer in which fitting holes into which ferrite bead cores are fitted are separated alternately according to the spacing between the terminals, and ferrite beads fitted in the fitting holes and attached to the spacers. It consists of a core.

[Effect]

In this invention, the ferrite bead cores fitted into the fitting holes and the terminal insertion holes are alternately separated and arranged on spacers at intervals corresponding to the spacing between the terminals of the semiconductor element. The terminal inserted into the insertion hole will not come into contact with the terminal. As a result, the insulation between the terminals inserted into the core and the terminal insertion holes is improved.

Furthermore, for the same reason, the terminal can be easily inserted into the ferrite bead core and the terminal insertion hole.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 to 3 indicate the same/corresponding parts as the conventional device. Therefore, the explanation thereof will be omitted. 4
5 is a rectangular parallelepiped spacer made of an insulating material, 5 is a terminal insertion hole provided in this spacer 4 through which the central one of the three terminals 1a is inserted, and 6 is a spacer 4 A fitting hole for fitting the ferrite bead core 2 provided in the
The holes 6 are provided separately on both sides of the terminal insertion hole 5. The ferrite bead core 2 has a fitting hole 6
It is integrally attached to the spacer 4 by fitting into the spacer 4.

The semiconductor element 1 is mounted on the substrate 3 after the center terminal 1a is inserted into the terminal insertion hole 5 and the terminals 1a on both sides thereof are inserted into the ferrite bead core 2.

Next, the effect will be explained.

The ferrite bead cores 2 fitted into the fitting holes 6 and the terminal insertion holes 5 in the embodiment are alternately separated and arranged on spacers 4 at intervals corresponding to the spacing between the three terminals 1a of the semiconductor element 1. Therefore, the core 2 and the terminal 1a inserted into the terminal insertion hole 5 do not come into contact with each other. Therefore, the insulation between the three terminals 1a inserted into the core 2 and the terminal insertion hole 5 is maintained.

In addition, as mentioned above, ferrite bead core 2
Since the terminal insertion holes 5 and 5 are positioned in advance at intervals of the three terminals 1a, it is easy to insert the three terminals 1a into the ferrite bead core 2 and the terminal insertion holes 5.

(Other Examples) In the above example, a large transistor,
Although we have described a spacer with a ferrite bead core used for MOSFETs or diodes, it can also be used for small transistors and MOSFET diodes by arranging the ferrite bead cores and terminal insertion holes in a triangular shape as shown in Figure 3.

[Effect of idea]

As explained above, according to this invention, since it has the above-described configuration, the following effects can be obtained.

Insulation between the terminals of the semiconductor element can be maintained.

Easy to insert terminals of semiconductor elements.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing how a spacer with a ferrite bead core is used in one embodiment of this invention, Fig. 2 is a perspective view of the spacer with a ferrite bead core in Fig. 1, and Fig. 3 is a perspective view of another example of this invention. A perspective view of a spacer with a ferrite bead core according to an embodiment, and FIG. 4 is a perspective view showing a conventional example. 1 is a transistor, MOSFET or transistor, 1a is a terminal, 2 is a ferrite bead core,
4 is a spacer. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] Transistors used to turn on/off high potentials,
Insulating spacers are provided to alternately separate the terminal insertion holes into which the MOSFET or diode terminals are inserted and the fitting holes into which the ferrite bead cores into which the terminals are inserted are fitted, in accordance with the spacing between the terminals. A spacer with a ferrite bead core, comprising: a ferrite bead core fitted into the fitting hole and attached to the spacer.