JPH0238388Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a connector that eliminates noise passing through connector pins.

(Prior Art) Conventionally, as this type of connector, connectors shown in FIGS. 4 and 5, for example, are generally known.

In the connector shown in FIG. 4, a connector pin 2 protruding from a connector housing 1 is inserted into a stepped cylindrical capacitor 3, and a box-shaped bracket 4 is inserted from above.
The inner electrode 3a and the outer electrode 3b of the cylindrical capacitor 3 are soldered to the connector pin 2 and the bracket 4, respectively, and in this state, the connector pin 2 is
The tip 2a is bent at a right angle and the tip 2a is soldered to the pattern of the printed circuit board 5.

On the other hand, in the connector shown in FIG. 5, a cylindrical capacitor 3 is inserted between the tip 2a and the bent portion 2b of the connector pin 2, which is bent in advance at a right angle in the same direction.
A flat bracket 4' is attached to these cylindrical capacitors 3, and the inner electrode 3a of the cylindrical capacitor 3 is connected to the cylindrical capacitor 3.
The external electrode 3b is soldered to the connector pin 2 and the bracket 4', respectively.

The connector shown in FIG. 4 requires a step of bending the connector pin 2 after soldering the inner surface electrode 3a and the outer surface electrode 3b of the cylindrical capacitor 3 to the connector pin 2 and the bracket 4, respectively. At times, a large force is applied to the cylindrical capacitor 3, which may cause a crack in the cylindrical capacitor 3, and there is a problem in that the connector pin 2 is difficult to bend.

Furthermore, in the connector shown in FIG. 5, the connector housing 1 is fixed in a floating state relative to the printed circuit board 5 by the protruding portion of the cylindrical capacitor 3 from the bracket 4', which makes it difficult to attach the connector. There was a problem that the strength was insufficient. Moreover, the tip end surface of the protruding portion of the cylindrical capacitor 3 contacts the printed circuit board 5, and the connector pin 2
When the tip end 2a of the capacitor 3 is soldered to the printed circuit board 5 by a method such as a solder dip, the heat generated during the solder dip causes the inner electrode 3a and outer electrode 3b of the cylindrical capacitor 3 to be attached to the connector pin 2 and the bracket 4', respectively. The problem was that the fixed solder melted and the cylindrical capacitor 3 was pushed against the printed circuit board 5 and lifted off the bracket 4' as shown in FIG.

(Purpose of the invention) The present invention was made to eliminate the above-mentioned drawbacks, and is easy to assemble and mount on a circuit board.
Moreover, it is an object of the present invention to provide a connector that can be firmly assembled to a circuit board.

(Structure of the invention) For this reason, the present invention is designed to remove a cylindrical capacitor between the tip of the connector pin, which protrudes from the connector housing and is bent in advance at a right angle in the same direction midway, and the bending position. While fitting, the step provided on this cylindrical capacitor is held against the bracket, and this bracket is fixed to the circuit board at a distance larger than the amount of protrusion of the connector pin of the cylindrical capacitor toward the protruding side. It is characterized by what it did.

(Effects of the invention) According to the invention, the connector pins of the connector are bent in advance before the cylindrical capacitor is attached, and the cylindrical capacitor is fixed with a bracket in a floating state with respect to the printed circuit board. When assembling the connector, a large force is applied to the cylindrical capacitor, causing a crack in the cylindrical capacitor, or when mounting the connector on a printed circuit board, the cylindrical capacitor is pressed against the printed circuit board, causing the fixed position to shift. There has never been a case where the solder on a cylindrical capacitor melts during solder dipping, and it is easy to assemble and can be reliably mounted on a printed circuit board.Moreover, the connector body can be directly supported on the circuit board. Therefore, the effect of improving the support strength can be obtained.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG.
The connector pins 12 protruding from the connector pins 12 are bent in advance at approximately right angles in the same direction from the middle. The tip 12a and the bent portion 12b of this connector pin 12
A cylindrical capacitor 13 is fitted between the two.

The cylindrical capacitor 13 has an inner surface electrode 13a and an outer surface electrode 13 on its inner peripheral surface and outer peripheral surface, respectively.
b is formed. Further, the cylindrical capacitor 13 has a stepped portion 13c having a diameter larger at one end than at the other portion.

As shown in FIG. 2a, the cylindrical capacitor 13 is fitted into a fitting hole 14a provided in a bracket 14 formed by punching out a single metal plate from the side opposite to the stepped portion 13c. Stepped portion 13
c is abutted against the peripheral edge of the insertion hole 14a of the bracket 14.

The bracket 14 has a number of fitting holes 14a that is equal to or greater than the number of connector pins 12, and a tube is inserted into the fitting hole 14a corresponding to the connector pin 12 that requires noise removal among these fitting holes 14a. A shaped capacitor 13 is inserted.

As shown in FIGS. 2a and 2b, the bracket 14 also has a ground terminal 14b at both ends of one side and at the center of each end, which is substantially perpendicular to the bracket 14, and a ground terminal 14b in the center. A notch 14 cut toward the ground terminal 14b of the
It has c.

The fitting hole 14a of the bracket 14 has a first
As shown in the figure, a cylindrical capacitor 13 is fitted, and an inner surface electrode 13a and an outer surface electrode 13b of this cylindrical capacitor 13 are soldered to the connector pin 12 and the bracket 14, respectively.

When the connector is mounted on the printed circuit board 15, the tips 12a of the connector pins 12 and the ground terminals 14b of the bracket 14 are inserted into the holes formed in the printed circuit board 15, and are inserted into the pattern 16 of the printed circuit board 15. be soldered.

In order to prevent the cylindrical capacitor 13 from coming into contact with the printed circuit board 15 during this soldering,
The soldering position of the inner surface electrode 13a of the cylindrical capacitor 13 to the connector pin 12 is such that the distance g between the bracket 14 and the printed circuit board 15 is the same as that between the bracket 14 of the cylindrical capacitor 13 and the printed circuit board 1.
The amount of protrusion d toward the side No. 5 is set to be larger than the amount of protrusion d.

In this way, when the connector is mounted on the printed circuit board 15, the cylindrical capacitor 13 will not come into contact with the printed circuit board 15, and the soldering of the outer surface electrode 13b of the cylindrical capacitor 13 to the bracket 14 will come off. It is possible to eliminate as much as possible the occurrence of misalignment. Further, the connector pin 12 does not need to be bent when the cylindrical capacitor 13 is soldered, and the occurrence of cracks in the cylindrical capacitor 13 can be reduced.

Further, by providing the slit 14c in the bracket 14, the high frequency current flowing through the bracket 14 flows into the nearest ground terminal 14b, thereby significantly improving the noise removal characteristics and the crosstalk characteristics.

In addition, in the above embodiment, the connector pin 12
In order to define the soldering position of the inner surface electrode 13a of the cylindrical capacitor 13, the connector pin 12
As shown in FIG. 1, a protrusion 12c protruding in the radial direction is provided, or as shown in FIG. It is preferable that the cylindrical capacitor 13 be held against the tip of this large diameter portion.

As described above, according to the embodiment of the present invention, it is possible to obtain a connector that is easy to assemble and has good noise removal characteristics and crosstalk characteristics.
6, the printed circuit board 15 can also be used for a connector that does not have the cylindrical capacitor 13.

[Brief explanation of the drawing]

FIG. 1 is a partially cross-sectional explanatory diagram of an embodiment of the connector according to the present invention, FIGS. 2a and 2b are a bottom view and a side view, respectively, of a bracket used in the connector of FIG. The figure is a sectional view of a modified example of the connector pin that defines the position of the cylindrical capacitor, FIGS. FIG. 3 is an explanatory diagram showing a state in which a positional change of a cylindrical capacitor occurs during mounting on a printed circuit board. DESCRIPTION OF SYMBOLS 11... Connector housing, 12... Connector pin, 12a... Tip, 12b... Bent part, 1
3... Cylindrical capacitor, 13a... Inner electrode, 1
3b... External electrode, 13c... Step portion, 14... Bracket, 15... Printed circuit board.

Claims (1)

[Scope of utility model registration request] A plurality of connector pins protruding from the connector housing are inserted into the cylindrical capacitors fitted into the insertion holes provided in the metal bracket, and the inner and outer electrodes of the cylindrical capacitors are inserted into the connector pins and the bracket, respectively. The connector is electrically conductive, and each of the connector pins is bent at a right angle in the same direction in the middle, and a cylindrical capacitor is fitted onto the tip of the connector pin, while the cylindrical capacitor A connector characterized in that a stepped portion provided on the capacitor is abutted against a bracket, and the bracket is fixed to a circuit board at a distance greater than the amount of protrusion of the cylindrical capacitor from the bracket.