JPH041717Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an LC composite component that can be crimped to the terminal bar and the electrode of a chip capacitor before soldering, thereby improving assembly efficiency.

Conventional examples are shown in FIGS. 4 and 5. Figure 4 is LC
A perspective view of the composite part, FIG. 5 shows a sectional view taken along line X-X' in FIG.

In the figure, 1 is a chip capacitor, 2 is a parallelepiped rib portion 2-2 and a coil coupling portion 2.
-3 thermoplastic resin bobbins alternately provided;
Reference numeral 2-1 is a concave cutout provided in the upper part of the collar portion 2-2 of the bobbin 2, and is rectangular in plan view. 2-3 indicates a cutout portion provided on one side of the bobbin 2 for coupling a circular coil.

The coil coupling portions 2-3 differ in their positions in configuring the LC filter; FIG. 4 shows the one at the right end of the LC filter in FIG. 1, and there may be cases where a coil coupling portion (not shown) is provided on the opposite side. This will be the central one of the LC filter.

The bottom 2B of the concave cutout 2-1 has two terminal rod holes 2C that reach the lower end surface of the collar 2-2 of the bobbin 2 from the bottom 2B.
A hole is made in contact with the inner surface of 1. Insert the terminal bar 3 that will become a terminal into the terminal bar hole 2C, make it protrude above and below the bobbin 2, and insert the chip capacitor 1 into the cutout part 2-1.
, place the chip capacitor 1 on the bottom 2B of the cutout 2-1, and connect the electrode 1 of the chip capacitor 1.
-1 and terminal bar 3 are soldered.

In the above structure, it is necessary that the electrode 1-1 of the chip capacitor 1 and the terminal bar 3 are in opposing positions.
Since the width of the terminal bar 1 is narrow and the variation in dimensions is large, there is a disadvantage that the terminal bar 3 is misaligned with the terminal bar 3, and soldering cannot be performed reliably. Furthermore, it was necessary to press the chip capacitor 1 to the terminal bar 3 until soldering, and to hold it so that it would not fall even if it was reversed during winding and soldering.

The purpose of this invention is to eliminate the drawbacks of the conventional technology, absorb variations in chip capacitors, and obtain an LC composite component that can be crimped during winding or soldering before soldering the chip capacitor to the terminal bar. That is.

Embodiments of the present invention will be described based on the drawings.

Figure 1 is a partially cutaway perspective view of the LC composite component of the present invention, Figure 2 is a plan view of the LC composite component of the present invention, and Figure 3 is a sectional view taken along the line Y-Y' in Figure 2. shows.

In the figure, the same reference numerals as in FIGS. 4 and 5 indicate the same parts.

1 is a chip capacitor, 1-1 is an electrode of the chip capacitor 1, 2 is a bobbin with a plurality of collar parts 2-
2, and a coil coupling portion 2-3 that couples the collar portion 2-2 between the collar portions 2-2. 2-
1 is a concave cutout provided at the upper part of the collar portion 2-2, 3 is a terminal bar, 4 is a coil coupled to the coil coupling portion 2-3, 5 is a cover that is placed over the entire body, 6
is a triangular prism shaped integrally provided on the inner surface of the concave cutout part 2-3 of the collar part 2-2 where the hole 2C of the terminal bar 3 is located so as to reach the top surface of the collar part 2-2 perpendicularly from the bottom part 2B. t/2> at a position slightly narrower than the minimum dimension of variation of the chip capacitor 1 and smaller than t/2 of the thickness t of the chip capacitor 1 at the protrusion of
Provided at the H position of H. The protrusion 6 has an R on the electrode 1-1 of the chip capacitor 1.
When it hits this R part, it acts to apply force to press the chip capacitor 1 to the terminal bar 3, and also to prevent the chip capacitor 1 from being misaligned. The 1-1 relationship is constant and stable soldering is possible.

Since the LC composite component of the present invention has the above-mentioned configuration, it can absorb dimensional variations in chip capacitors, maintain a constant positional relationship between the terminal rod and the electrodes of the chip capacitor, and enable stable soldering.
Since the chip capacitor is crimped onto the terminal bar by the protrusion, the chip capacitor will not work in the cutout or fall off even if it is turned in the opposite direction even before soldering, making the assembly work more efficient. It produces effects such as high productivity.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway perspective view of an LC filter constructed using the LC composite parts of the present invention;
The figure is a plan view of the main parts of the same LC composite part, Figure 3 is a sectional view taken along the Y-Y' line in Figure 2, Figure 4 is a perspective view of the main parts of the conventional LC composite part, and Figure 5 is X- in Figure 4
A cross-sectional view taken along the X′ line is shown. 1... Chip capacitor, 1-1... Electrode, 2
...Bobbin, 2-1...Concave cutout, 2-2...
...Brim portion, 2-3...Coil coupling portion, 2B...Bottom, 2C...Hole for terminal bar, 3...Terminal bar, 4...
...Coil, 5...Cover, 6...Triangular prism-shaped protrusion.

Claims (1)

[Scope of utility model registration request] A concave cutout is provided in the upper part of the collar of a bobbin in which a plurality of collars and coil parts are alternately formed, and a hole for a terminal bar is provided that reaches the lower part of the collar from the bottom of the cutout. Insert the terminal rod into the hole, and insert the terminal rod into the cutout at a position slightly narrower than the minimum thickness of the chip capacitor with radius at both ends to be inserted into the cutout at the bottom of the cutout. A triangular prism-shaped protrusion reaching the upper surface of the collar is provided, a chip capacitor is inserted into this cutout so that it is always crimped to the terminal bar by the protrusion, and the electrodes of this chip capacitor and the terminal bar are soldered. LC that will be done
Composite parts.