JPH118018A - Electric connector with filter and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture an electric connector with filter capable of easily damping or removing noise in a simple process by arranging a shield frame having a plate spring-shaped projection covering a housing, electrically connecting a contact element and an individual electrode, and electrically connecting a shield frame and an earth electrode. SOLUTION: Contact elements 2 are arranged in a line and inserted into a housing 1, a multiple filter mechanism 3 is arranged in a slit 13 of the housing 1. The housing 1 is inserted into the shield frame 4 so as to be wrapped. The multiple filter mechanism 3 is fixed with the plate spring-shaped projection 41 of the shield frame 4 and the contact elements 2. The contact elements 2 and the individual electrode of the multiple filter mechanism 3, and the plate spring-shaped projection 41 of the shield frame 4 and the earth electrode of the multiple filter mechanism 3 are electrically connected. A connector having this constitution has a short assembling process and makes soldering unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector with a filter having a built-in filter and a method of manufacturing the same.

[0002]

2. Description of the Related Art In recent years, as various electronic devices have been improved in performance and reliability, it has been required to attenuate and remove signal noise in electronic devices and between electronic devices. As a method of solving these demands, measures such as noise attenuation and noise removal are required for cables, connectors, and the like involved in signal transmission of equipment.

Conventionally, a method of attenuating and removing noise by attaching a ferrite to a cable has been proposed and put to practical use. A connector has been proposed in which a filter (capacitor, ferrite, resistor, etc.) is attached between a contact pin of the connector and a shield frame (earth electrode).

For example, Japanese Patent Application Laid-Open No. 5-29043 discloses a connector with a filter, in which a connector pin is fitted in a hole of a ferrite block, the connector pin is fixed to a housing in a shield case, and a chip capacitor is soldered. A connector with a filter has been proposed. In addition, as an electric connector with a filter,
In Japanese Patent Application Laid-Open Nos. 9-184478 and 59-184479, a capacitor is formed on a substrate having a hole as a filter member, a pin is inserted into the hole, and an individual electrode of the capacitor is soldered to the pin. An electrical connector has been proposed in which the capacitor is electrically connected with a ground electrode and the shell is electrically connected to the shell with solder. Also, Japanese Patent Application Laid-Open No. 7-22082
No. 0, Japanese Patent Application Laid-Open No. Hei 7-249449, and the like have disclosed a filter in which a contact pin is inserted into a hole of a substrate on which a capacitor is formed, although efforts have been made to eliminate electrical connection by soldering by devising leaf springs and contacts. An attached electrical connector has been proposed.

[0005]

However, in the connector as described above, each of the chip capacitors is soldered, and each of the pins is inserted into a hole of a substrate on which the capacitor is formed. The manufacturing process such as electrically connecting the electrodes by soldering and electrically connecting the earth electrode and shell of the capacitor by soldering is complicated, the assembly time is long, and reliability problems due to aging changes such as cracks and corrosion due to soldering. , Etc. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electrical connector with a filter which solves the above-mentioned problems and is excellent in effects such as attenuation and removal of noise, and a method of manufacturing the same.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a housing,
An electrical connector with a filter comprising a plurality of contact elements, a multiple filter mechanism, and a shield frame, and a manufacturing method, wherein a multiple filter mechanism formed by a ground electrode, a filter element and an individual electrode, and a plurality of contact elements are mounted and cut out. The contact frame and the individual electrodes are electrically connected to each other, and the shield frame and the ground electrode are electrically connected to each other. An object of the present invention is to provide an electrical connector with a filter which is connected, has a simple manufacturing process, has a short assembling process, does not require soldering, is excellent in noise attenuation and elimination, and a method of manufacturing the same.

Hereinafter, an electrical connector with a filter and a method of manufacturing the same according to the present invention will be described in detail. FIG. 1 is an assembled perspective view showing one embodiment of an electrical connector with a filter and a method for manufacturing the same according to the present invention. FIG. 2 is a cross-sectional view of FIG.
It is sectional drawing after assembling of J '. FIG. 3 is a sectional view of a part of the contact element.

An electrical connector with a filter and a method of manufacturing the same according to the present invention generally include a housing 1 as shown in FIG.
Has aligned and inserted the contact element 2, the multiple filter mechanism 3 is disposed in the cutout 13 of the housing,
The housing 1 is inserted so as to be covered by the shield frame 4, and the multiple filter mechanism is fixed by the leaf spring-like projections 41 of the shield frame 4 and the contact element 2, and the contact element 2 and the multiple filter mechanism 3 and the leaf spring-like projections 41 of the shield frame and the ground electrode 3 of the multiple filter mechanism.
4, 35 are electrically connected to each other. Further, the electrical connector with filter and the method of manufacturing the same according to the present invention do not necessarily need to adopt the structure shown in the drawings, but can employ an appropriate structure depending on the type of connector, the number of contact elements, and the like.

In the structure of the electrical connector with filter and the method of manufacturing the same according to the present invention, the housing 1 is provided with a notch 13 for mounting the multiple filter mechanism 3, and the material, manufacturing method and the like are not particularly limited. Absent. Preferably,
The notch 13 for aligning and arranging the contact elements and integrally molding with the resin is formed to form the notch 13 for mounting the multiple filter mechanism, or the notch 13 and the contact element 2 formed of resin and into which the multiple filter mechanism 3 is inserted are attached. That is, the guide holes 12 to be aligned and inserted are formed. In the latter case, a stopper hole 11 for preventing the contact element from coming off is formed. When the contact element is inserted and mounted in the guide hole, a stopper 22 formed in the contact element enters the stopper hole 11 and the contact element is inserted. More preferably, it is fixed. Particularly preferably, the notch 1 in which the contact elements are arranged and arranged integrally with the resin and the multiple filter mechanism is mounted.
3 is formed. In any case, the contact element is exposed from the notch 13. Also, a housing structure in which notches for mounting a multiple filter mechanism on both sides of the housing are formed and contact elements are aligned and inserted on both sides, the contact elements are aligned on both sides, and a multiple filter mechanism is mounted on both sides, It is also possible to provide a two-row filter-equipped electrical connector in which the housing is covered with a shield frame having leaf spring-like projections formed on both sides.

[0010] The contact element 2 is a conductive material, and its structure and manufacturing method are not particularly limited. Preferably, an elastic projection 21 is formed on the contact element 2 and has elasticity, and is electrically connected to the individual electrodes of the multiple filter mechanism to press and fix the multiple filter mechanism. More preferably, the elastic projections 21 are formed by stamping a plate-like metal into a plate spring shape.
It is particularly preferable that a portion of the plate-shaped metal that contacts the contact of the mating connector by pressing is formed into a half-moon shape and the ten-shaped, leaf spring-shaped elastic projection 21 is formed.

The shield frame 4 is made of a conductive material, and its structure and manufacturing method are not particularly limited. Preferably, the leaf spring-like projections 4 are shaped to surround the housing 1.
1 is stamped and formed on the inner surface. The leaf spring-like projections 41 press and fix the multiple filter mechanism to electrically connect to the ground electrode.

The multiple filter mechanism 3 includes the individual electrodes 32, the ground electrodes 34 and 35, and the filter element 33, and a plurality of filters are formed. The material, shape, and manufacturing method are not particularly limited. Preferably, the insulating substrate 3
The ground electrodes 34 and 35 are formed on both sides of the first electrode, and the ground electrodes 34 and 35 are electrically connected on both sides.
Is formed on the filter element 33, and the filter element 33
Forming an individual electrode 32 on the substrate (FIG. 2), or
That is, the ground electrode 34 is formed on one entire surface of the plate-shaped filter element 33, and the individual electrode 32 is formed on the opposite surface.
More preferably, an earth electrode, a filter element, and an individual electrode are formed on the insulating substrate 31 by a thick film printing method, or an earth electrode and an individual electrode are formed on the plate-shaped filter element 33 by a thick film printing method. That is. Particularly preferably, an earth electrode is formed on the insulating substrate 31 by a thick film printing method, a perovskite type dielectric is formed as a filter element, and an individual electrode is formed.
Further, in order to improve the reliability of the multiple filter mechanism, it is effective to form a protective glass layer except for the individual electrode portion and the contact portion of the ground electrode. It is preferable that the filter element has an independent island shape corresponding to the individual electrode, rather than forming the filter element uniformly over the entire surface in order to reduce the noise energy from flowing to other contact elements.

The electrical connector with filter and the method of manufacturing according to the present invention thus configured have simple manufacturing steps.
An electrical connector with a filter that requires a short assembling process, does not require soldering, and has a high noise attenuation and removal effect.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an electrical connector with a filter and a manufacturing method according to the present invention will be described below. The electrical connector with filter and the manufacturing method according to the present invention are not limited to the following embodiments.

(Example 1) A multiple filter mechanism 3 was manufactured as follows. Ground electrodes 34 and 35 were formed by printing, drying, and firing an Ag-Pt-based conductive paste on both surfaces of an insulating substrate 31 made of alumina ceramic having through-holes formed therein by a thick-film printing method. At this time, the substrate 3
The ground electrode 34 and the ground electrode 35 on both sides were electrically connected through one hole by through-hole printing. (If a substrate without holes is used, printing, drying and baking are performed on the side of the substrate using a conductive paste to form ground electrodes 34 on both sides.
-35 may be electrically connected. Alternatively, the ground electrodes 34 and 35 on both surfaces may be electrically connected by a clip or the like. Next, a perovskite type dielectric paste [(Pb (Mg _1/3 N) is applied on one of the ground electrodes 34 by a thick film printing method.
b _2/3 ) O ₃ + PbTiO ₃ )] was printed in a strip shape, dried and fired to form a filter element 33. (Thick film printing may be formed on almost the entire surface of the ground electrode 34 instead of a strip shape.) Next, a conductive paste is printed, dried and fired on the filter element 33 by a thick film printing method. Individual electrode 3
2 was formed. Further, in order to improve reliability, a protective glass layer was formed by printing, drying, and baking a glass paste by a thick film printing method on a portion excluding the individual electrodes. The multiple filter mechanism 3 thus manufactured forms a capacitor by the ground electrode 34, the filter element 33 (dielectric) and the individual electrode 32, and the individual electrode 32 corresponds to the set pitch of the contact element 2. Are formed. (Multiple filter mechanism 3 in FIG. 2)

The contact element 2 was manufactured as follows. A 0.1 mm phosphor bronze metal plate is pressed and continuously connected by a tie bar, and the individual contact portions are bent in a semicircular shape, and the ten-shaped elastic protrusions 21 are punched out.
Was formed. (Fig. 3)

The housing 1 was manufactured as follows. The above-mentioned contact element 2 is placed in a mold at a pitch of 1.27 mm.
This arrangement was performed, and integrally molded with a polybutylene terephthalate resin mixed with a glass fiber filler. In the housing 1 formed in this manner, a notch 13 for incorporating the multiple filter mechanism 3 was formed, and the elastic projection 21 was exposed from the portion of the notch 13 to fix the contact element 2.

The shield frame 4 was manufactured as follows. Pressing a metal plate of phosphor bronze into leaf spring-like projections 41
And a sheet metal processing was performed so that the leaf spring-like projections became the inner surface, thereby forming a box-shaped shield frame 4 having both open ends.

The above-mentioned components were assembled as follows to manufacture an electrical connector with a filter. The multiple filter mechanism 3 is mounted in the notch 13 of the housing 1 to which the contact element 2 is fixed, and the housing 1 is
Was inserted. The elastic projection 21 and the individual electrode 32 were electrically connected to the shield frame 4 and the ground electrode 35, respectively.

In the electrical connector with filter assembled and manufactured in this way, only the multiple filter mechanism 3 is mounted on the cutout 13 of the housing 1 and the housing 1 is inserted into the shield frame 4. In addition, the individual electrodes 32 of the multiple filter mechanism are electrically connected, the leaf spring-like projections 41 of the shield frame and the ground electrode 35 of the multiple filter mechanism are electrically connected, and the multiple filter mechanism 3 is fixed and attenuates noise. The effect of removing was excellent.

(Embodiment 2) The multiple filter mechanism 3 was manufactured in substantially the same manner as in Embodiment 1.

The contact element 2 was manufactured as follows. A 0.1 mm phosphor bronze plate is pressed to bend each contact portion into a semicircle, and the punched ten-shaped elastic protrusion 21 and stopper 22 (enter the stop hole 11 to fix the contact element to the housing). The contact element 2 was formed. (Fig. 3)

The housing 1 was manufactured as follows. Guide hole 12 for mounting a contact element, fixing hole 11 for fixing a contact element, and notch 1 for mounting a multiple filter mechanism
The housing 1 was formed by molding using a polybutylene terephthalate-based resin mixed with a glass fiber filler in a mold having a connector element such as No.3.

The shield frame 4 was manufactured in substantially the same manner as in the first embodiment.

An electrical connector with a filter was manufactured by assembling the above manufactured components as follows. The contact element 2 having the lead wire of the cable attached thereto was inserted into the guide hole 12 of the housing 1, and the stopper 22 of the contact element entered the stop hole 11 to fix the contact element. The multiple filter mechanism 3 is provided in the cutout 13 of the housing.
Was attached. Further, the housing is connected to the shield frame 4.
Attached to. In the electric connector with filter assembled in this manner, the elastic projection 21 of the connector element and the individual electrode 32 of the multiple filter mechanism 3 are electrically connected, the leaf spring-like projection 41 of the shield frame 4 and the ground electrode of the multiple filter mechanism. Was electrically connected. Further, the leaf spring-like projection 41 presses and fixes the multiple filter mechanism.

The electric connector with filter thus assembled is provided with a contact element mounted on a housing,
It was assembled simply by inserting the housing into the shield frame with the multiple filter mechanism attached, and was excellent in the effect of attenuating and removing noise.

[0027]

According to the present invention, there is provided an electrical connector with a filter and a method of manufacturing the same, wherein a contact element is mounted, a housing on which a multiple filter mechanism is mounted is inserted and wrapped around a shield frame, and a multiple filter mechanism is further mounted. Is inserted between the contact element and the shield frame.The elastic projection of the contact element and the individual electrode of the multiple filter mechanism are electrically connected, and the leaf spring-like projection of the shield frame is electrically connected. It is simple, requires a short assembly process, does not require soldering, has high reliability, and has excellent effects such as noise attenuation and removal.

[0028]

[Brief description of the drawings]

FIG. 1 is an assembled perspective view showing an embodiment of the electric connector with filter according to the present invention. FIG. 2 is a cross-sectional view of FIG.
FIG. 3 is a sectional view after assembly. FIG. 3 is a sectional view of a part of the contact element.

[0029]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Contact element 3 Multiple filter mechanism 4 Shield frame 11 Stop hole 12 Guide hole 13 Notch 21 Elastic projection 22 Stopper 31 Substrate 32 Individual electrode 33 Filter element 34 Earth electrode 35 Earth electrode 41 Leaf spring projection

Claims (3)

[Claims] 1. An electrical connector with a filter comprising a housing, a plurality of contact elements, a multiple filter mechanism and a shield frame, and a manufacturing method, comprising: a multiple filter mechanism formed by a ground electrode, a filter element and an individual electrode; A housing in which the element is mounted, the notch is provided with the multiple filter mechanism, and a shield frame in which a leaf spring-like projection is formed to cover the housing. The contact element and the individual electrode are electrically connected to each other, and the shield is formed. An electric connector with a filter, wherein the frame and the ground electrode are electrically connected, and a method of manufacturing the same. 2. A step of forming a multiple filter mechanism for forming a ground electrode, a filter element, and an individual electrode; a step of forming a housing having a cutout for mounting the multiple filter mechanism and a guide hole for inserting a contact element; A step of inserting a contact element into a hole, a step of mounting the multiple filter mechanism in the notch of the housing, and a step of covering the housing with a shield frame having a leaf spring-like projection. 2. The electrical connector with a filter according to 1 and a method for manufacturing the same. 3. A step of forming a multiple filter mechanism for forming a ground electrode, a filter element, and an individual electrode, forming a plurality of contact elements in a line, integrally molding with resin, and forming a cutout for mounting the multiple filter mechanism. 2. A step of forming a housing to be mounted, a step of mounting the multiple filter mechanism in the notch of the housing, and a step of covering the housing with a shield frame having a leaf spring-like projection. Electrical connector with filter and method of manufacturing the same.