JPS6023911Y2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector in which a noise filter element such as a feedthrough capacitor is coupled to a connector pin.

BACKGROUND OF THE INVENTION As various industrial and household electronic and electrical devices become more sophisticated and sensitive, prevention of malfunctions due to noise generated by these devices and noise entering these devices from the outside has become an important issue.

In order to block such noise at the input and output terminals of the equipment,
Recently, input/output connectors have been proposed in which a noise filter element such as a feedthrough capacitor is coupled to a connector pin.

FIGS. 1A and 1B show an example of this type of connector, and the housing 1 is made of an insulating material such as plastic.
A chassis 4 is provided with a plurality of connector pins 2 protruding from the upper surface 1a at an appropriate height, and has through holes 3 provided at the same pitch as the arrangement pitch of the connector pins 2.
is placed on the upper surface 1a of the housing 1 while inserting the connector pins 2 into each of the through holes 3 in a non-contact state, and the connector pins 2 protruding from the through holes 3 of the chassis 4 are fitted with feedthrough capacitors, etc. A shield case 6 is placed over the noise filter element 5, and each of the connector pins 2 is led out from a through hole 7 provided in the upper surface 6a of the shield case 6. It had a similar structure.

When assembling the noise filter element 5, see Fig. 2A.
As shown enlarged in FIG.
is provided, and the through hole 5 of the noise filter/V-shaped element 5 is
With the connector pin 2 inserted through e, it is heated in a furnace or soldered using a soldering iron.

Then, the preliminary solder layers 5c and 5d are melted, and the electrodes 5a,
5b are conductively connected to the connector pin 2 or the chassis 4, respectively.

However, while the connector pin 2 is made of a plate material, the through hole 5e of the noise filter element 5 is circular, so when the connector pin 2 is inserted into the through hole 5e of the noise filter element 5, the As shown in Figure 2B, a gap occurs between the connector pin 2 and the through hole 5e of the noise filter element 5 due to the difference in shape between the two, and through this gap, soldering is performed using flux and a molten preliminary solder layer. 5c or 5d flows out as shown by arrow 49,
Poor conduction between the electrode 5a and the connector pin 2 may occur.

In addition, since the connector pin 2 is made of a plate material, it is easily bent, and the joint depreciation between the noise filter element 5 and the connector pin 2 is very small, and when external force is applied to the connector pin 2, the noise filter Since a concentrated load is applied to the element 5, the noise filter element is likely to be damaged or cracked.

The present invention eliminates the above-mentioned conventional drawbacks, significantly improves the electrical connection between the noise filter element and the connector pin and the mechanical strength of both, and prevents poor continuity and damage and cracking of the noise filter element. The purpose is to provide a connector with

In order to achieve the above object, the present invention provides a housing made of insulating material in which a plurality of connector pins are implanted, a chassis through which the connector pins are passed through in a non-contact manner, and a pair of electrodes through which the connector pins are passed through. and a noise filter element electrically connected to the chassis and the connector pin, respectively, wherein a conductor in the form of a pot member whose flange portion faces one of the electrodes is inserted into the connector pin. Features.

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

3A and 3B are cross-sectional views of the connector according to the present invention.

In the figures, the same reference numerals as in FIGS. 1 and 2 indicate functionally identical components.

In this embodiment, a chassis 4 through which the connector pins 2 are passed through in a non-contact manner is provided on the upper surface of a housing 1 in which a plurality of connector pins 2 are implanted. It has a structure in which a filter element 5 and a cylindrical conductor 9 having a flange portion 9a are inserted.

The conductor 9 is made of a metal material with good solderability, and its collar 9a is as shown in FIGS. 4A and 4B.
As shown in an enlarged view, the electrode 5 of the noise filter element 5
It has the same outer diameter as a and the preliminary solder layer 5c thereon, and is fixedly soldered in contact with the preliminary solder layer 5c.

Further, the cylindrical portion 9b of the conductor 9 has an inner diameter comparable to the maximum width of the connector pin 2, and is inserted into the connector pin 2 with an appropriate pressing force.

When the conductor 9 is provided as described above, during soldering, the soldering flux and the molten preliminary solder layer 5c adhere to the flange portion 9a of the conductor 9 and the through hole 5e of the noise filter element 5.
Since the inward flow is prevented, the electrode 5a is reliably electrically connected to the conductor 9.

Furthermore, since the conductor 9 has a cylindrical shape and the connector pin 2 is press-fitted into the inner diameter of the cylindrical portion 9b, the electrical connection between the conductor 9 and the connector pin 2 is simple and reliable.

Furthermore, since the base of the connector pin 2, on which external force tends to concentrate during use, is reinforced by the conductor 9, the mechanical strength of the connector pin 2 is increased and it is not easily bent.

Moreover, the substantial bonding area between the noise filter element 5 and the connector pin 2 is the same as that between the flange 9a of the conductor 9 and the preliminary solder layer 5.
Since the joint area between the connector pin 2 and the connector pin 2 is expanded, the external force applied to the connector pin 2 is evenly distributed and received by this expanded joint area.

As a result, the resistance force against the external force applied to the connector pin 2 becomes extremely large, and damage, cracking, etc. of the noise filter element 5 is effectively prevented, and reliability is improved.

In the embodiment, a part of the housing 1 is provided with stepped portions 1b and lc.
A recess 10 is formed between the stepped portions 1b and 1c, and a chassis 4 having a cutout hole 11 is provided on the stepped portions 1b and lc so as to bridge them.

With this structure, connector pin 2, chassis 4
After soldering the noise filter element 5 and the conductor 9, and before filling the insulating resin 8, cleaning water is also injected into the recess 10 on the back side of the chassis 4 through the notch hole 11, so that it adheres to the back side. After soldering, the flux can be easily and reliably removed, and when filling the insulating resin 8 afterwards, the insulating resin 8 is filled into the recess 10 through the notch hole 11 to improve insulation properties. Can be done.

Furthermore, if the upper surface 6a of the shield case 6 is recessed to the position of the chassis 4 and is configured to double as the chassis 4, the chassis 4 can be omitted.

Furthermore, the noise filter element 5 is not limited to a dielectric ceramic capacitor, but may also be a semiconductor ceramic capacitor such as a grain boundary insulation type or a reduction and reoxidation type, an L-C composite type that combines a capacitor with ferrite beads, etc. , it may be a composite capacitor that shares some of the connector pins 2.

As described above, the present invention provides a housing made of insulating resin in which a plurality of connector pins are implanted, a chassis through which the connector pins are passed through in a non-contact manner, and a pair of housings through which the connector pins are inserted. and a noise filter element having electrodes electrically connected to the chassis and the connector pins respectively, the connector pins having:
Since the flange is characterized in that a flange-shaped conductor is inserted in the flange to be in contact with one of the pair of electrodes of the noise filter element, the following effects can be obtained.

(1) The electrical connection between the connector pin and the noise filter element is ensured, and reliability is improved.

(2) The mechanical strength of the connector pin is increased, and the force applied to the noise filter element via the connector pin and conductor is evenly distributed by the collar, preventing concentrated loads. Damage, cracking, etc. are effectively prevented.

[Brief explanation of the drawing]

Fig. 1A is an exploded perspective view of a conventional connector, Fig. 1B is a partially cut-out front view of the connector in its assembled state, Fig. 2A is a partially enlarged sectional view, and Fig. 2 also explains its defects. FIG. 3A is a front sectional view of the connector according to the present invention, FIG. 3B is a partially cut-out plan view, and FIGS. 4A and B are partially enlarged sectional views. FIG. 1...Housing, 2...Connector pin, 3
...Through hole, 4...Chassis, 5...
...Noise filter element, 5a, 5b...
Electrode, 9...Conductor, 9a...Brim part,
9b...Cylinder part.

Claims (1)

[Scope of utility model registration request] a housing made of an insulating material in which a plurality of connector pins are implanted; a chassis through which the connector pins pass through in a non-contact manner; and a pair of electrodes through which the connector pins pass through and are electrically connected to the chassis and the connector pins respectively. 1. A connector comprising a noise filter element having a cylindrical shape and a cylindrical noise filter element, wherein a conductor in the shape of a bamboo tube is inserted into the connector pin, the flange of which is in contact with one of the pair of electrodes of the noise filter element.