JPH09204959A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the radiation of an external noise from the power source current applied to a blade fuse. SOLUTION: This connector has a connector body 1 mounted on the end part of the printed circuit board 2 of equipment; a connecting pin 7 having one end situated within the plug hole 4 of the connector body 1 and the other end electrically connected to the signal line conductor 8 and power source conductor 10 of the printed circuit board 2, and a pair of power source terminals 11, 12 having contact end parts 11a, 12a situated within the fuse hole 5 of the connector body 1 to which a blade fuse 6 is inserted, and connecting end parts 11b, 12e of the same terminals 11, 12 are electrically connected to the power source conductor 10 of the printed circuit board 2, respectively. In this case, the terminal 12 of the power source terminals 11, 12 has an extension part 12c extending in the aligned direction of the power source terminals 11, 12 and bypassing other power source terminals 11, 12 and the connecting end part 12e bent at the end of the extension part 12c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector used for electric equipment, and more particularly to a connector mounted on a printed circuit board of the equipment for use.

[0002]

As is well known, for example, a connector body 1A of a connector with a fuse used in a car audio system.
Is a printed circuit board 2A as shown in FIGS.
The plug hole 4A and the fuse hole 5A are exposed to the outside from the back surface of the car audio chassis 3A in a state of being mounted on the end of the plug, and the plug hole 4A is provided with a connector socket for external connection (not shown) Fuse 6
A is inserted and used.

That is, inside the plug hole 4A of the connector body 1A, one end portions 7a of a plurality of connecting pins 7A which are bent into an "L" shape are located, and the other end portions 7b of these connecting pins 7A are located. Is a printed circuit board 2A shown in detail in FIG.
Of the signal line conductor 8A, the ground conductor 9A (power conductor), and the connection conductor 10A (power conductor). Inside the fuse hole 5A, a ground-side terminal 11A (power supply terminal) that is in contact with the pair of conductive blades 6a and 6b of the blade fuse 6A, respectively.
And the contact end 11 of the positive terminal 12A (power supply terminal)
a, 12a are respectively located, and the connection end portions 11b, 1 of the ground side terminal 11A and the plus side terminal 12A are located.
2b is the connection conductor 10A and the ground conductor 9A
Will be electrically connected to the positive side conductor 13A (power supply conductor) on the opposite side.

[0004]

Therefore, in the case of the connector having such a structure, as shown in FIG. 6, the signal line conductor 8A of the printed circuit board 2A is the ground conductor 9A to which the power supply current is applied and the connection conductor. 10A and the conductor 13A on the plus side are surrounded, but since the power supply current includes external noise, these ground conductors 9A,
External noise is induced from the connection conductor 10A and the positive conductor 13A to the signal line conductor 8A, and noise noise is generated.
This may have caused malfunction of externally connected devices.

In order to prevent the radiation of such external noise, it is considered that the plus side conductor 13A should be extended to the outside of the ground conductor 9A and the connection conductor 10A as shown by the phantom line in FIG. However, since the end of the printed circuit board 2A is very close to the car audio chassis 3A, such extension of the positive side conductor 13A that extends the end of the printed circuit board 2A is effectively
Have difficulty.

In view of the problems of the conventional connector as described above, an object of the present invention is to obtain a connector capable of preventing radiation of external noise from the power supply current applied to the blade fuse.

[0007]

SUMMARY OF THE INVENTION According to the present invention, the object is to provide a connector body mounted at the end of a printed circuit board of a device, one end of which is located in the plug hole of the connector body and the other end. A connection pin electrically connected to a signal line conductor and a power supply conductor of the printed circuit board, and a contact end located in a fuse hole of the connector body into which a blade fuse is inserted and the connection end In a connector including a pair of power supply terminals electrically connected to the power supply conductors of a printed circuit board, one of the power supply terminals includes an extension portion extending in a direction in which the power supply terminals are aligned and bypassing the other power supply terminal. , A connector having the connecting end bent at the end of the extension. Further, in a preferred embodiment of the present invention described later, the printed circuit board is described as a structure having a plus-side conductor that extends in parallel with a ground conductor formed on one side of the signal line conductor.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The details of the embodiment of the present invention will be described below with reference to FIGS. The connector body 1 of the connector according to the present invention is molded from an electrically insulating resin.
As shown in FIG. 2, the plug hole 4 and the fuse hole 5 are exposed to the outside from the back surface of the car audio chassis 3 while being mounted on the end portion of the printed circuit board 2, and the plug hole 4 has a connector plug (not shown) for external connection. No. 1) is similar to the conventional one in that the blade fuses 6 are inserted into the fuse holes 5.

That is, inside the plug hole 4 of the connector body 1, one end portions 7a of a plurality of connecting pins 7 which are bent into an "L" shape are located, and the other end portions 7 of these connecting pins 7 are located.
b is a signal line conductor 8, a ground conductor 9 (power conductor), and a connection conductor 10 of the printed circuit board 2 whose details are shown in FIG.
(Electric power supply conductor) is electrically connected to each. And
Inside the fuse hole 5, contact ends 11a and 12a of a ground side terminal 11 (power supply terminal) and a plus side terminal 12 (power supply terminal), which are respectively in contact with the pair of conductive blades 6a and 6b of the blade fuse 6, are provided. Is located.

That is, although the connection end portion 11b of the ground side terminal 11 is electrically connected to the connection conductor 10 as in the conventional case, the plus side terminal 12 extends toward the ground side terminal 11. A cutout 12d that has a portion 12c and that bypasses the ground-side terminal 11 is formed in the middle of the extension portion 12c. Further, the extension portion 12c of the plus side terminal 12 is guided into the groove 14 shown in FIG. 1, and at the same end portion thereof, the plus side conductor 13 (power source conductor) which is extended in parallel next to the ground conductor 9 is provided. The electrically connectable connection end 12e is bent. In addition, reference numeral “12” in FIG.
f ”is a soldering projection for stabilizing the mounting posture of the plus-side terminal 12, and in the solder dipping process of the printed circuit board 2, the soldering projection 12f is the land 15 of FIG.
Will be fixed to.

Since the connector according to the illustrated embodiment has the above-described structure, since the plus side terminal 12 is provided with the extension portion 12c to bypass the ground side terminal 11, one of the signal line conductors 8 of the printed circuit board 2 is bypassed. Side, that is, the power supply pin side, the ground conductor 9, the positive side conductor 13, and the connection conductor 10
Therefore, it is possible to reliably prevent the external noise included in the power source current applied to the power source line from radiating to the signal line conductor 8. Further, in the present invention, noise radiation to the signal line conductor 8 can be prevented only by modifying the positive terminal 12, so that the product cost does not become expensive and the reliability of the connector with blade fuse is improved. it can.

[0012]

As is apparent from the above description, according to the present invention, noise radiation from the power line to the signal line of the printed circuit board can be reliably prevented only by modifying the shape of the power terminal. It is possible to obtain a connector with a fuse that has a low product cost and price competitiveness.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a connector according to the present invention.

FIG. 2 is a sectional view of the connector.

FIG. 3 is an inverted plan view of a printed wiring board on which the connector is mounted.

FIG. 4 is an exploded perspective view of a conventional connector.

FIG. 5 is a cross-sectional view of the connector.

FIG. 6 is an inverted plan view of a printed wiring board on which the connector is mounted.

[Explanation of symbols]

 1 Connector Main Body 2 Printed Circuit Board 4 Plug Hole 5 Fuse Hole 6 Blade Fuse 6a, 6b Conductive Blade 7 Connection Pin 8 Signal Line Conductor 9 Ground Conductor 10 Connection Conductor 11 Ground Side Terminal 12 Positive Side Terminal 12a Contact End 12c Extension 12d Notch 12e Connection end 13 Positive conductor

Claims (2)

[Claims] 1. A connector body mounted on an end of a printed circuit board of a device, one end of which is located in a plug hole of the connector body and the other end of which is a signal line conductor and a power conductor of the printed circuit board. A contact end is located in a fuse hole of the connector body into which a blade fuse is inserted, and a connecting pin is electrically connected to the power supply conductor of the printed circuit board. A pair of power supply terminals, one of the power supply terminals has an extension portion extending in an alignment direction of the power supply terminals and bypassing the other power supply terminal, and the connection bent at an end portion of the extension portion. A connector having an end portion. 2. The connector according to claim 1, wherein the printed circuit board has a plus-side conductor that extends in parallel with a ground conductor formed on one side of the signal line conductor.