JPS5925091Y2 - connector - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connector in which a feedthrough capacitor is attached to each pin.

Traditionally, input/output devices have integrated feedthrough capacitors in order to block noise generated from various industrial or household electronic/electrical devices, as well as noise entering these devices from the outside, at the input/output terminals of the devices. Connectors are known.

FIG. 1 shows a conventional example of this type of connector, in which through-holes 2 are passed through a flat dielectric ceramic substrate 1 at predetermined intervals, and mutually independent electrodes 3 and common electrodes 4 are formed around the through-holes 2. A composite feedthrough capacitor C having a bond formed thereon was inserted into a case 5, and connector pins 6 passed through each through hole 2 were fixed to the electrodes 3 by soldering.

However, since the mechanical strength of the composite feedthrough capacitor C is weak, there is a drawback that it is easily cracked or damaged when it is assembled into the case 5.

Furthermore, even when the connector shown in FIG. 1 is a male type and a female connector is connected to it, stress generated between the connector pin 6 and the connecting pin of the female connector that fits into contact with the connector pin 6 causes The composite feedthrough capacitor C sometimes cracked.

Furthermore, since the outer case 5 is made of plastic or the like, the shielding effect is not sufficient and the damping characteristics are deteriorated.

The object of the present invention is to eliminate the above-mentioned drawbacks of the conventional connectors, and to provide a connector that has a high mechanical strength in the feedthrough capacitor portion, is free from breakage, cracking, etc., and has excellent noise attenuation characteristics.

To achieve the above object, the present invention includes a housing formed of an insulating material, a plurality of connector pins implanted in the housing so that at least one end thereof protrudes from one side of the housing, and the connector a chassis made of a metal material provided on one side of the housing through which each of the pins passes through in a non-contact manner; and a chassis having a pair of electrodes on both sides in the thickness direction in which through holes are opened; A feedthrough capacitor is provided independently for each of the chassis, one of the pair of electrodes is fixed to one side of the chassis, and the other electrode is fixed to the connector pin passing through the through hole, and and a shield case that is electrically conductive and covers the chassis and the feedthrough capacitor from above the housing.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The content of the present invention will be specifically explained in detail below with reference to the accompanying drawings, which are examples.

FIG. 2A is a partial front sectional view of the connector according to the present invention, FIGS. 2B and C are sectional views taken along lines BB and C-C in FIG. 2A, and FIG. 3 is an exploded perspective view of the connector according to the present invention. It is a diagram.

In the figure, 7 is a housing molded using an insulating material such as plastic.

A plurality of connector pins 8 are inserted through the bottom portion 7a of the housing 7 at a predetermined pitch d1, and frame portions 7b to 7e are protruded from the corners thereof.

At the intermediate portions of the frame portions 7b, 7C, 17d and 7e, notches 9 and 10 are provided that reach the surface of the bottom portion 7a from the edge.

11 is a chassis made of metal material.

The chassis 11 has an outer shape similar to the bottom 7a of the housing 7.
At the same time, the connector pin 8 is set to a slightly medium dimension.
A through hole 11a is provided in a portion corresponding to the through hole 11a, and while the connector pin 8 is passed through the through hole 11a, it is overlapped on the surface of the bottom portion 7a surrounded by the frames 7b to 7e. .

Further, at the center of both ends of the chassis 11, there are protrusions 11b,
11C are provided, and when stacked on the surface of the bottom 7a, the protrusions 11b and 11C are fitted into the cutouts 9 and 10 of the housing 7 and exposed.

Reference numeral 12 denotes a capacitor formed in an annular shape with a hole 12a penetrating in the thickness direction. It is fixed.

As shown in an enlarged view in FIG. 4, the capacitor 12 has a hole 12 on one surface of a ceramic substrate 12b formed in an annular shape.
A silver electrode 12C is provided around the hole 12a, and a gap & is formed between the silver electrode 12C and the inner peripheral surface of the hole 12a on the other side.
Another silver electrode 12d is provided, and the silver electrode 12C912d is coated with solder 12e and 12f.

In fixing the capacitor 12 on the chassis 11, while passing the connector pin 8 into the hole 12a,
The silver electrode 12d and the solder 12f are brought into contact with the surface of the chassis 11, and in this state the whole is passed through a soldering furnace.

Then, the solders 12e and 12f on the silver electrodes 12C and 12d melt, and the silver electrode 12C connects to the connector pin 8.
2d are fixed on the chassis 11 by soldering.

Therefore, the chassis 11 is connected to the electrode 12 of each capacitor 12.
It becomes a common terminal for d.

As mentioned above, since the structure is such that the capacitor 12 for each connector pin 8 is fixed on the chassis 11, which has a high mechanical strength such as a metal material, the mechanical strength of the capacitor part is extremely high, and the capacitor may be damaged during assembly. , cracking can be completely prevented.

After fixing the capacitor 12 on the chassis 11, as shown in FIG.
Coat with 3.

Note that the capacitor 12 can of course be constructed as a dielectric ceramic capacitor using a dielectric ceramic substrate 12a, and can also be constructed as a semiconductor ceramic coating using a semiconductor ceramic substrate.

In the case of a semiconductor ceramic capacitor, it is possible to obtain a capacitance that is more than IO times larger than that of a dielectric ceramic coating, so that it is possible to realize a capacitance that is more excellent in noise attenuation characteristics.

14 is a shield case.

The shield case 14 is placed over the housing 7 to which the container 12 and chassis 11 are fixed, and the connector pins 8 are led out from holes 14b provided in the ceiling 14a.

A protrusion 1 of the chassis 11 is provided on the side wall of the shield case 14.
1b and 11C are provided, and the protrusion 11b is inserted through the windows 14C and 14d.
.

11 C is soldered to the shield case 14 in 15 steps.

The shield case 14 is grounded. As described above, when the entire housing 7 is covered with the shield case 14, the attenuation characteristics can be improved due to the shielding effect.

The structure of the connector according to the present invention is as described above, and in actual use, the connector is of a male type, and the connector pins 8 protruding into the housing are replaced with female connectors (
(not shown) to make contact.

In this case, since the stress at the time of contact is supported by the chassis 11 having high mechanical strength, the capacitor 11 will not be damaged or cracked.

As described above, the present invention includes a housing formed of an insulating material, a plurality of connector pins implanted in the housing so that at least one end protrudes from one side of the housing, and a plurality of connector pins. A chassis formed of a metal material provided on one side of the housing by penetrating each of the connector bins in a non-contact manner, and having a pair of electrodes on both sides in the thickness direction with through holes opened for each of the connector bins. a feedthrough capacitor that is provided independently and has one of the pair of electrodes fixed to one side of the chassis and the other electrode fixed to the connector pin passing through the through hole; Since it is characterized by having a shielding case that is electrically conductive and covers the chassis and the feedthrough capacitor from above the housing, it is highly reliable and can completely prevent damage and cracking of the capacitor during assembly or connector connection. Can provide high quality connectors.

Further, as shown in the embodiment, by placing a shield case covering the chassis and the through-container from above the housing that supports the connector bin, the attenuation characteristics can be improved.

Further, by constructing the feedthrough capacitor with a semiconductor ceramic capacitor, the capacitance can be increased and the attenuation characteristics can be further improved.

Furthermore, to assemble the entire device, it is only necessary to stack the chassis and the feedthrough capacitor on top of the housing that supports the connector bin, and finally cover the shield case, making the assembly extremely easy and highly suitable for mass production.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional connector, Fig. 2A is a partial front sectional view of a connector according to the present invention, and Figs.
Each cross-sectional view taken along line B-B and line C-C in Figure A, Figure 3 is an exploded diffusion perspective view, Figure 4 is an enlarged cross-sectional view of the container, and Figure 5 explains the mounting structure between the chassis and the container. This is a diagram. 7... Housing, 8... Connector bin, 11... Chassis, 12... Capacitor, 14... Shield case.

Claims (2)

[Scope of utility model registration request] (1) A housing formed of an insulating material, a plurality of connector pins implanted in the housing so that at least one end protrudes from one side of the housing, and each of the connector pins connected in a non-contact manner. a chassis formed of a metal material and provided on one surface side of the housing through which a pair of electrodes are provided on both sides in the thickness direction in which a through hole is opened, independently provided for each of the connector pins; Fixing one of the pair of electrodes to one side of the chassis,
A feedthrough capacitor having the other electrode fixed to the connector pin passing through the through hole, and a shield case electrically connected to the chassis and covering the chassis and the feedthrough capacitor from above the housing. A connector featuring: (2) The connector according to claim 1, wherein the feedthrough capacitor is a semiconductor magnetic capacitor.