JPH0241857Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a capacitor array that is assembled and equipped as a noise filter in a connector that electrically connects various devices to each other.

BACKGROUND ART In general, the above-mentioned connector is equipped with a bead-shaped capacitor fitted on the axis of each connector pin as a noise filter. Each capacitor is installed by connecting one electrode to the connector pin and grounding the other electrode to the connector case, but when the number of connector pins increases, it becomes difficult to assemble them individually and electrically connect each one as desired. is extremely time-consuming.

For this reason, conventionally, a plurality of conductive patterns that form pairs on both sides are provided on the plate surface of an insulating substrate, and a plurality of chip-shaped capacitors are mounted in parallel in contact with each pair of conductive patterns. It is known to construct a capacitor array including a plurality of capacitors on a single insulating substrate by providing lead terminals led out in the same direction (Japanese Patent Laid-Open No. 104429/1983).

Problems that the invention aims to solve However, since this capacitor array has chip-shaped capacitors mounted individually on the surface of an insulating substrate, it is similar to installing bead-shaped capacitors on each connector pin as described above. When the number of connector pins increases, the required number of chip-shaped capacitors must be individually attached, which increases the number of man-hours and time required for assembly. Furthermore, in order to accommodate various types of connectors having different numbers of connector pins, it is necessary to change the number of capacitors mounted according to the number of connector pins.

Another object of the present invention is to provide a capacitor array that can be easily equipped with a plurality of capacitors and that can easily accommodate variations in the number of connected members such as connector pins. .

Means for Solving the Problems In the capacitor array according to the present invention, a plurality of individual electrodes are provided in parallel at intervals in the longitudinal direction of one plate surface, and a common electrode is provided on the other plate surface at a relative position to each individual electrode. A plurality of capacitors are formed in the porcelain element, and a capacitor block is provided which has an extraction electrode continuous from the common electrode along the longitudinal edge of the porcelain element, and is in contact with each extraction electrode of the capacitor block. A ground frame that holds the porcelain body in parallel holds multiple capacitor blocks in parallel and connects each lead electrode to each other, and connects the ground electrode that continues to the lead electrode and the individual electrodes of each capacitor block in the same direction. A lead terminal is provided, and the entire capacitor block and the earth frame, except for the lead terminal side, are integrally covered and sealed with an insulating resin.

Function This capacitor array has a capacitor block in which multiple capacitors are mounted on a ceramic body with individual electrodes on one plate and a common electrode on the other plate, and is constructed by assembling multiple capacitor blocks. Not only can a large number of capacitors be easily provided, but also a common electrode of each capacitor block and a continuous lead-out electrode are connected to each other with a ground frame, and the porcelain element of each capacitor block is sandwiched between the ground frames. By doing so, a plurality of capacitor blocks are held in parallel, so even if the number of connected members such as connector pins changes to some extent, it can be easily accommodated. In addition, the entire capacitor block and the ground frame are coated and sealed with insulating resin, except for the lead-out side of the lead terminal that protrudes in the same direction from the ground electrode of the lead electrode and the individual electrodes of each capacitor block. It can be formed as a single unit.

Embodiments The following description will be made with reference to the accompanying drawings.

This capacitor array is installed as a noise filter in a connector used to connect circuits between various devices, and as shown in FIG. 1, capacitors 11, 11, . , 21, 21, . . . are provided on the plate surface, and a plurality of capacitor blocks 1a, 1b, . The capacitor 11 of each capacitor block 1a, 1b...1i,
11..., 21, 21... are individual electrodes 11a, 11b
..., 21a, 21b... are provided in parallel at intervals in the longitudinal direction of one plate surface of the porcelain bodies 10, 20..., and each of the individual electrodes 11a, 11b..., 21a, 21b
It is formed by providing common electrodes 11c and 21c on other plate surfaces so as to be mutually located. From the individual electrodes 11a, 11b..., 21a, 21b... and the common electrodes 11c, 21c, the porcelain bodies 10, 2
0... via capacitors 11, 11..., 21, 2
1... is formed. In addition, common electrodes 11c and 21c of each capacitor block 1a, 1b...1i
Continuously from the plate surface side where the individual electrodes 11a, 11b..., 21a, 21b... of the porcelain bodies 10, 20... are provided, extraction electrodes 12, 22... are provided along the longitudinal edges. . In addition, when a plurality of capacitor blocks 1a, 1b...1i are held in parallel by an earth frame (to be described later), the capacitor blocks 1a, 1b...1i located at least on one end side or both ends have extraction electrodes 12.
Ground electrodes 30a and 30b are formed which are continuous with the ground electrodes 30a and 30b.

Each capacitor block 1a, 1b...1i
The necessary number of porcelain bodies 10, 20, . The earth frame 2 may be a conductive metal plate bent into a substantially U-shaped cross section. The earth frame 2 holds the edges of the porcelain bodies 10, 21, and also holds the respective extraction electrodes 12, 22.
Each capacitor block 1a,
The lead electrodes 12, 22, . . . of 1b...1i are assembled to be connected to each other. When assembling, the required number of capacitor blocks 1 must be installed according to the number of connected members such as connector pins, etc., which will be described later.
a, 1b...1i may be arranged and held in parallel. In addition, each capacitor 11, 11..., 21, 2
1... individual electrodes 11a, 11b..., 21, 21b
... and lead terminals 13a, 13b..., 23a, 23b..., 31 from the ground electrodes 30a, 30b.
By providing a and 31b protruding in the same direction, it is possible to electrically connect the member to be connected. The lead terminals 13a, 13b..., 23a,
As 23b..., 31a, 31b, those having a bifurcated shaft end can be used, and the porcelain bodies 10, 20... are sandwiched between the bifurcated shaft ends and fixed by soldering to each electrode surface. In this way, mechanical or electrical equipment can be ensured. In the assembled state, each lead terminal 13a, 13b..., 23a,
Except for the lead-out side of 23b..., 31a, 31b, each capacitor block 1a, 1b...1i and the earth frame 2 are sealed with an exterior coating 3 of insulating resin, so that the whole is integrally formed. This exterior coating 3 can be formed by molding, dip molding, injection molding, etc., and can be formed into a required shape depending on the location where an object to be attached, such as a connector to be described later, is to be attached.

In capacitor array A configured in this way,
Individual electrodes 11 based on porcelain bodies 10, 20...
a, 11b..., 21a, 21b... and the common electrode 11
c, 21c... and each capacitor 11, 11..., 2
1, 21... to capacitor blocks 1a, 1b...1
i, so a plurality of capacitors 11, 1
1..., 21a, 21... can be formed extremely easily,
Further, a plurality of capacitor blocks 1a, 1b, . . . 1i can be easily provided. Since each capacitor block 1a, 1b...1i can be held in parallel in the required number by the earth frame 2, the number of connected members can be easily reduced by the capacitors 11, 11..., 21a, 21... provided in each capacitor block 1a, 1b...1i. You can try to match the numbers. Further, the extraction electrodes 21, 2 of each common electrode 11c, 21c...
2... are connected through the ground frame 2, so that each capacitor block 1a, 1b...1i can be easily connected in series.

The connector to attach this capacitor array is
As shown in FIG. 2, the continuous male connector pins 4a to 4n and female connector springs 5a to 5n are inserted into the insulating resin holding body 6 and held, and the outer case 7 is fitted onto the female side. It is assembled by fixing. Further, as shown in FIG. 3, this connector C is provided with two rows of connector pins 4a to 4n and connector springs (not shown), and capacitor arrays A and A can be attached to each row. Each capacitor array A, A has lead terminals 13a, 13b..., 23a, 23b
..., 31a and 31b are positioned laterally and fitted and fixed inside the array holding fitting 8, and the array holding fitting 8 is installed in the connector C by tightening and fixing the array holding fitting 8 with the screw receiving part 9 of the outer case 7. You can do it like this. Each capacitor array A, A and connector C are capacitors 11, 11..., 21, 21.
... Lead terminals 13a, 13b..., 23
a, 23b... are soldered and fixed to the connector pins 4a to 4n, and lead terminals 31 led out from the ground electrodes 30a, 30b as shown in FIG.
By soldering and fixing a and 31b to the array holding fitting 8, they can be assembled so as to be electrically connected to each other.

Effects of the invention As described above, according to the capacitor array according to the present invention, it is possible to easily assemble the required number of capacitors, and the number can also be easily changed as required. It is something to do.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing the internal structure of the capacitor array according to the present invention, Fig. 2 is a side sectional view of the connector to which the capacitor array is attached, Fig. 3 is a plan view of the connector, and Fig. 4 is It is a side view of the same connector. 1a, 1b...1i: Capacitor block, 1
0, 20...: Porcelain body, 11, 11..., 21, 2
1...: Capacitor, 11a, 11b..., 21a,
21b...: Individual electrode, 11c, 21c...: Common electrode, 11d, 21d...: Extracting electrode, 30a, 3
0b: Earth electrode, 13a, 13b..., 23a,
23b..., 31a, 31b: Lead terminal, 2: Earth frame, 3: Insulating resin exterior film.

Claims (1)

[Scope of utility model registration request] A plurality of capacitors are formed on the porcelain body by a plurality of individual electrodes arranged in parallel at intervals in the longitudinal direction of one plate surface and a common electrode positioned relative to each individual electrode and provided on the other plate surface, and The capacitor block has a condenser block having a continuous lead-out electrode from the common electrode along the longitudinal edge of the porcelain body, and a grounding frame that holds the porcelain body in contact with each lead-out electrode of the capacitor block. The blocks are held in parallel and each lead-out electrode is connected to each other, and a lead terminal is provided by leading out in the same direction from the ground electrode continuous to the lead-out electrode and the individual electrode of each capacitor block, except for the lead-out side of this lead terminal. A capacitor array characterized in that the entire capacitor block including each capacitor block and a ground frame is integrally coated and sealed with an insulating resin.