JPH0620746A - Surface installation type connector - Google Patents

Abstract

PURPOSE:To provide a surface type connector which needs not print wirings for connecting contact pin with any passive element and which occupies a minor area on a printed circuit board. CONSTITUTION:A housing 1 is fitted with a contact pin 5, terminal 7, and grounding/fixing metal piece 10, and a capacitor array 15 is accommodated in an element accommodation chamber 4 furnished on the back of the housing 1. An input side external electrode 16 is connected with the contact pin 5 while an output side external electrode 17 is connected with the terminal 7, and a ground electrode 18 is connected with the metal piece 10. This filter connector is surface mounted on a printed circuit board by soldering the terminal 7 to a print wiring provided on the board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface mount type connector having a passive element such as a filter element for removing high frequency noise.

[0002]

2. Description of the Related Art Conventionally, when a passive element such as an inductor, a capacitor or a resistor is attached to a surface-mounted connector on a printed circuit board, the passive element is separately mounted on the printed circuit board independently of the connector. However, when the passive element is attached to the printed circuit board separately from the connector, it is necessary to form a printed wiring for electrically connecting the connector and the passive element on the printed circuit board. Occupies a large area,
There was a problem that impedes high-density mounting.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the need for printed wiring for connecting contact pins and passive elements and to occupy a small area on a printed circuit board. To provide.
In order to achieve the above object, the surface mount connector according to the present invention includes a housing made of an insulating material, a contact pin, and a passive element. The housing has a plug insertion chamber and an element storage chamber which are partitioned by a wall portion. The contact pin is attached to the wall portion of the housing and projects into the plug insertion chamber and the element storage chamber. Passive elements are, for example, capacitors, inductors, resistors,
It is housed in the element housing chamber, one external electrode is connected to the contact pin, and the other external electrode is connectable to a printed wiring provided on a printed board.

In the above structure, in the passive element, one external electrode is directly connected to the contact pin, and the other external electrode is connected to the printed wiring on the printed board. Therefore, it is not necessary to form a dedicated wiring on the printed circuit board for connecting the passive element and the contact pin. Moreover, since the passive element is built in the housing of the connector, the area occupied on the printed circuit board is reduced.

Further, in the surface mount type connector according to the present invention, terminals may be attached to the housing. One end of this terminal projects into the element storage chamber, and the other end of the terminal is led out to connect to a printed wiring provided on the printed board. In this case, the other external electrode of the passive element is connected to the wiring on the printed board via the terminal.

Further, the surface mount type connector according to the present invention may be installed behind the plug insertion chamber of the housing without housing the passive device in the device housing chamber. In this case, the contact pin projects from the plug insertion chamber behind it and connects to one external electrode of the passive element. The other external electrode of the passive element is connected to the printed wiring provided on the printed board.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the surface mount type connector according to the present invention will be described below with reference to the accompanying drawings. (Refer to the first embodiment, FIGS. 1 and 2) In FIGS.
The filter connector includes a housing 1, contact pins 5, terminals 7, a grounding / fixing metal fitting 10, and a three-terminal type capacitor array 15.

The housing 1 is integrally molded from an insulative resin material, and is composed of a plug insertion chamber 2 having a front opening and an element storage chamber 4 provided behind the plug insertion chamber 2 through a wall portion 3. . The contact pin 5 is insert-molded on the wall portion 3, one end 5a of which projects above the plug insertion chamber 2 and the other end 5b of which protrudes into the element storage chamber 4. Terminal 7
Is insert-molded into the bottom of the storage chamber 4, one end 7a faces the end 5b of the contact pin 5 in the storage chamber 4, and the other end 7b is drawn out of the housing 1. The ends 7b of the terminals 7 are for mounting the filter connector on the printed circuit board 50 by connecting to the printed wiring 51, and the pitch of the ends 7b and the pitch of the wirings 51 are set to be equal. The gland and fixing metal fitting 10 is insert-molded on the side wall portion of the housing 1, and the claw portion 10a projects downward from the bottom portion of the housing 1, and the end portions 10b project on both sides of the storage chamber 4.

The capacitor array 15 has contact pins 5
It is a well-known one having a number of electrostatic capacitance parts corresponding to the inside, and the input side external electrodes 16 and the output side external electrodes 17 are provided on both sides in the long side direction, and the ground side is provided on both sides in the short side direction. An electrode 18 is provided. The capacitor array 1
5 is stored in the storage chamber 4 in a state where the upper and lower surfaces are sandwiched by the end portion 5b of the contact pin 5 and the end portion 7a of the terminal 7 and both side surfaces are sandwiched by the end portion 10b of the ground and fixing metal fitting 10. To be done. At this time, the external electrode 16 is connected to the contact pin 5, the external electrode 17 is connected to the terminal 7, and the ground electrode 18 is connected to the ground / fixing metal fitting 10. The capacitor array 15 is held by the spring force of the contact pin 5, the terminal 7, and the metal fitting 10, and is electrically connected. To ensure this connection, each end 5b, 7
It is preferable to solder the electrodes a, 10b and the electrodes 16, 17, 18 to each other.

The filter connector having the above structure is
As shown in FIG. 2, the end portion 7b of the terminal 7 is connected to the printed circuit board 5
It is surface-mounted by soldering it to the printed wiring 51 on the upper surface of the substrate. At this time, the claw portion 10a of the ground / fixing metal fitting 10 is inserted into a hole (not shown) formed in the printed board 50, and the printed board 50 of the filter connector is inserted.
It is connected to a ground line (not shown) of the printed circuit board 50 while being prevented from coming off.

A signal input from the contact pin 5 passes through the electrostatic capacity portion of the capacitor array 15 and is transmitted from the terminal 7 to the printed wiring 51. At this time, the high frequency noise flows from the ground electrode 18 to the ground line via the fixing metal fitting 10. In the above configuration, the capacitor array 15 is built in the housing 1, and the input side external electrode 16 is directly connected to the contact pin 5,
The area occupied on the printed circuit board 50 can be small.

(Second Embodiment, See FIG. 3) This second embodiment basically has the same configuration as that of the first embodiment. The difference is that the terminal 7 is omitted, the lower part of the storage chamber 4 is opened, and the external electrode 17 on the output side of the capacitor array 15 is opened.
Is directly connected to the printed wiring 51 of the printed circuit board 50 via the cream solder 52 or the like.

The capacitor array 15 is held by the contact pins 5 and the grounding / fixing metal fittings (not shown in FIG. 3) provided on both sides of the housing 1.
The advantage of the second embodiment is that, in addition to the reduction of the occupied area, the terminal is not used for connection to the printed wiring 51 on the printed circuit board 50, so that it is not necessary to strictly control the bending accuracy of the terminal. .

(Third Embodiment, See FIGS. 4 and 5) In the third embodiment, the inductor array 30 is provided on the back of the housing 21.
Is attached. The inductor array 30 has built-in inductor elements between the input-side external electrode 31 and the output-side external electrode 32, and the dummy electrodes 33 provided on both sides are sandwiched between the ends 28b of the pair of fixing fittings 28. , And is soldered.

The input side external electrode 31 is soldered to the end portion 25b of the contact pin 25, and the output side external electrode 3
2 is soldered to the printed wiring 51 on the printed circuit board 50. The contact pin 25 is the wall portion 2 of the housing 21.
3 is insert-molded, and the end portion 25a protrudes in an upper portion of the plug insertion chamber 22 in a bent state. The fixing metal fitting 28 does not serve also as a ground terminal, and is integrated with the housing 21 of the inductor array 30 and the claw portion 2.
8a is inserted into the printed circuit board 50 to prevent the housing 21 from coming off.

Also in the third embodiment, the input side electrode 31 of the inductor array 30 is directly connected to the contact pin 25 without passing through the wiring on the printed board,
The area occupied by the surface mounting on the printed circuit board 50 is reduced. Further, similarly to the second embodiment, since the output side external electrode 32 is connected to the printed wiring 51 and the terminal is not required, it is not necessary to strictly control the bending accuracy of the terminal.

(Other Embodiments) The surface mount type connector according to the present invention is not limited to the above-mentioned embodiments.
Various modifications can be made within the scope of the gist. For example, in the first and second embodiments, the inductor array 30 shown in the third embodiment may be used instead of the three-terminal type capacitor array 15 as the filter element. In this case, the fixing metal fitting 10 does not need to serve also as the ground terminal. On the contrary, in the third embodiment, the capacitor array 15 may be used as the filter element instead of the inductor array 30. In this case, the fixing metal fitting 28 also needs to serve as the ground terminal. Furthermore, in each embodiment, other passive element arrays, for example, resistor arrays may be used instead of the capacitor array 15 or the inductor array 30.

Further, in each embodiment, the contact pins 5, 25, the terminals 7, and the fixing metal fittings 10, 28 are arranged in the array 1
Although a suitable elasticity is required to attach the components 5 and 30, the shape thereof and the method of attachment to the housings 1 and 21 (insert molding or press fitting) are arbitrary. Further, as a product shape, the arrays 15 and 30 are shipped in a state where they are assembled in the housings 1 and 21, or both are separately provided, and the arrays 15 and 30 having desired specifications are combined at the time of mounting to be integrated with the housings 1 and 21. It is optional whether or not to convert.

[Brief description of drawings]

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

FIG. 2 is a vertical cross-sectional view of the filter connector shown in FIG. 1 mounted on a printed circuit board.

FIG. 3 is a vertical cross-sectional view of a filter connector according to a second embodiment of the present invention mounted on a printed board.

FIG. 4 is a plan view showing a state in which a filter connector according to a third embodiment of the present invention is mounted on a printed board.

5 is a side view of the filter connector in the mounted state shown in FIG.

[Explanation of symbols]

 1, 21 ... Housing 2, 22 ... Plug insertion chamber 3, 23 ... Wall part 4, 24 ... Element storage chamber 5, 25 ... Contact pin 7 ... Terminal 10, 28 ... Fixing metal fitting 15 ... Capacitor array 30 ... Inductor array

Claims (3)

[Claims] 1. A housing made of an insulating material having a plug insertion chamber and an element storage chamber, which are partitioned by a wall portion, a contact pin attached to the wall portion and protruding into the plug insertion chamber and the element storage chamber, and the housing. A terminal that is attached, one end of which protrudes into the element storage chamber and the other end of which is drawn out to connect to the printed wiring provided on the printed circuit board, and which is stored in the element storage chamber, and one external electrode of which is the contact. A surface-mounted connector, comprising: a passive element connected to a pin and the other external electrode connected to the terminal. 2. A housing made of an insulating material having a plug insertion chamber and an element storage chamber, which are partitioned by a wall, a contact pin attached to the wall portion and protruding into the plug insertion chamber and the element storage chamber, and the element storage. A surface mount connector, which is housed in a chamber, one external electrode is connected to the contact pin, and the other external electrode is connectable to a printed wiring provided on a printed circuit board. . 3. A housing made of an insulating material having a plug insertion chamber, a contact pin attached to the housing, one end of which protrudes into the plug insertion chamber and the other end of which protrudes behind the plug insertion chamber, and a plug insertion of the housing. A surface mount device, which is provided behind the chamber, wherein one external electrode is connected to the contact pin, and the other external electrode is connectable to a printed wiring provided on a printed circuit board. Type connector.