JPH0633657Y2 - Surface mount type connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a surface-mounted connector (hereinafter referred to as a surface mount connector) including a connector housing mounted on the surface of a printed circuit board and a plurality of connector pins protruding from the rear surface of the connector housing. , Simply called a connector).

(Prior Art) FIGS. 7A to 7C are side views of a conventional connector. In FIGS. 7A to 7C, reference numeral 1 is a printed board, and 2 is a male or female connector mounted on the surface of the printed board 1.

The connector 2 projects from the connector housing 3 having a connector insertion port on the front surface 3a and the rear surface 3b of the connector housing 3 and is bent at a right angle to the surface direction of the printed circuit board 1 at an intermediate portion thereof, and the tip thereof is shown on the surface of the printed circuit board 1 as illustrated. It is composed of connector pins 4a and 4b which are fixedly connected to the wiring pattern by soldering. Connector pin 4a,
4b project from the rear surface of the connector housing 3 in upper and lower stages, and although only one is shown in each of the upper and lower stages in the drawing, a plurality of each is arranged in the vertical direction of the drawing.

(Problems to be solved by the invention) By the way, since such a connector 2 is a surface mount type, a through hole is provided in the printed circuit board 1,
The tip of each connector pin 4a, 4b cannot be inserted through the through hole to be attached. For example, as shown in FIG.
As shown in each of (c), each connector pin 4a, 4b
Both of the tips are bent outward or inward so as to be soldered to the wiring pattern on the surface of the printed board 1.

For this reason, in the connector 2 of the conventional example, it is necessary to bend the tip of the connector pin 4, but if the bending amount and the bending angle are not accurately controlled, the pitch between the connector pins 4a and 4b will be incorrect. Since it becomes impossible to accurately and surely attach it to the wiring pattern (not shown) of the printed circuit board 1, its processing requires a considerable amount of time and labor, which makes the processing cost very expensive. Was there.

For this reason, the conventional connector 2 has a difficulty in surely and easily mounting it on the surface of the printed board 1.

The present invention has been made in view of the above problems,
By eliminating the bending process at the tip of the connector pin, the manufacturing cost can be reduced by the above-mentioned processing cost, and in that case, the pitch between the tips of the connector pins can be reliably and easily made without the risk of deviation. It is an object of the present invention to provide a surface mount type connector that can be mounted on the surface of a printed circuit board.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a surface-mounted connector having a recess on the rear surface thereof, with the rear surface facing the surface of the printed circuit board. Corresponding to the connector housing mounted on the connector housing, a plurality of connector pins projecting straight from the recess of the rear surface of the connector housing toward the surface of the printed circuit board in a dimension less than the recess depth dimension, and the arrangement pitch of the connector pins. Wherein a plurality of through holes having a diameter into which the connector pin can be inserted are formed, and a plurality of conductive patterns continuous from the inner peripheral surface to the outer surface of these through holes are formed, and the overall height dimension is A connector mounted on the surface of the printed circuit board with a depth not more than the depth of the recess of the connector housing. A connector pin holder, and each tip of the connector pin is inserted into each through hole of the connector pin holder and connected to each of the conductive patterns on the inner peripheral surface.

(Function) The connector housing in which the connector pins projecting straight from the recesses on the rear surface are inserted into the respective through holes of the connector pin retainer and connected to the conductive patterns on the inner peripheral surface of the connector housing is formed on the rear surface of the printed circuit board. With the connector pin holder mounted on the printed circuit board surface facing the surface and the connector pin holder placed on the printed circuit board wiring pattern, the conductive pattern on the outer surface of the connector pin holder and the wiring pattern on the printed circuit board surface Each of the connector pins is electrically connected to the wiring pattern on the surface of the printed board by soldering.

Further, the connector pin retainer is housed in the concave portion of the connector housing, and the lower ends of the connector pins are also accommodated in the through holes of the connector retainer without protruding from the rear surface position of the connector housing.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a front view of a connector according to an embodiment of the present invention, FIG. 2 is a partially cutaway side view of the connector mounted on a printed circuit board, and FIG. 4 (a) is a plan view of the connector pin retainer, and FIG. 4 (b) is a side view of the connector pin retainer. Parts corresponding to those of the conventional example shown in FIGS. 7A to 7C are designated by the same reference numerals.

In these figures, 1 is a printed circuit board, 2 is a connector of the embodiment, a connector housing 3 having a connector insertion port 3a on the front surface, and the connector housing 3 thereof.
A plurality of connector pins 4a, which are divided into two steps from the rear surface 3b and project straightly, each having nine steps in each step,
…, 4b… (18 in total). The connector housing 3 is provided with mounting angles 5a and 5b on both sides on the rear surface side. The connector housing 3 is attached with its rear surface facing the surface of the printed circuit board 1 by means of screws inserted in screw holes (not shown) formed in the mounting angles 5a and 5b. Further, the connector 2 is provided with a connector pin retainer 8 having the through holes 7a ..., 7b ..., which are provided in the same number as the connector pins 4 in accordance with the arrangement pitch of the respective tips of the connector pins 4a, 4b. . The connector pin holder 8 is made of glass epoxy resin, heat resistant plastic,
It is composed of alumina, preferably ferrite which is effective for noise removal.

Through holes 7a ..., 7b in the connector pin holder 8
Conductive patterns 9a ..., 9b ... Are formed on the inner peripheral surface of each. Further, on one outer surface 8a side of the outer surface of the connector pin holder 8, conductive patterns 10a ... Which are individually connected to one conductive pattern 9a. On the outer surface 8b side of the outer surface of the connector pin holder 8, there are formed conductive patterns 10b ... That are individually connected to the other conductive patterns 9b. Connector pin retainer 8
Are filled with solder 13a and 13b in the through holes 7a and 7b, respectively, with the tips of the corresponding connector pins 4a and 4b inserted into the through holes 7a and 7b, respectively. , 4b tips and corresponding conductive patterns 1
0a and 10b are electrically conductively connected. At this time, the rear surface of the connector housing 3 and the bottom surface of the connector pin holder 8 are located on the same plane.

In the connector 2 thus configured, the connector housing 3 is mounted on the printed circuit board 1 by the mounting angles 5a and 5b, and the connector pin holder 8 is mounted so as to straddle the wiring patterns 11a and 11b of the printed circuit board 1. After being placed, the conductive pattern 10a on one outer surface 8a of the connector pin holder 8 and one wiring pattern 1
1a is connected to the solder 12a, and the conductive pattern 10b on the other outer surface 8b is connected to the other wiring pattern 11b by the solder 12b. This allows each connector pin 4a, 4
The tip of b is the conductive pattern 9 on the inner peripheral surface of the through holes 7a, 7b.
a, 9b and the conductive patterns 10a, 10b on the outer surface and the solders 12a, 12b to electrically connect the wiring patterns 11a,
Connected to 11b.

FIG. 5 is a diagram showing a planar configuration example of another connector pin holder. In the connector pin retainer shown in FIG. 5, in addition to the through holes 7a, 7b, ...
…, 14b… are formed. In this connector pin retainer, since each notch 14a ..., 14b ... is provided,
The attachment area of the solder 12a, 12b on the outer side surface is increased, so that the attachment strength of the connector pin holder 8 to the printed board 1 is increased.

These notches 14a ..., 14b ... are made when the connector retainer 8 is made by cutting the mother board in which a large number of through holes 7a, 7b are repeatedly formed and cutting the through holes 7a, 7b arranged in a line as cut lines. It is also formed in.

FIG. 6 is a diagram showing a planar configuration example of still another connector pin holder. In the connector pin retainer shown in FIG. 6, through holes 7a, 7b and notches 14a, 14b are formed in a staggered pattern. Even with this connector pin holder
In the same manner as in the figure, the notches 14a and 14b increase the attachment strength of the connector pin holder 8 to the printed board 1.

The shape of the conductive pattern formed on the connector pin holder 8 can be freely changed. Also, connector pin 4
Although a and 4b project in two steps from the rear surface of the connector housing 3 in the above-described embodiment, they do not necessarily have such a configuration.

(Effect) As is apparent from the above description, according to the present invention,
By mounting the connector housing on the printed circuit board surface and connecting the conductive pattern on the outer surface of the connector pin holder and the wiring pattern on the printed circuit board surface by soldering or the like, the connector pins are electrically connected to the printed circuit board surface wiring pattern. Since it is configured to be connected, it is not necessary to bend the tip of the connector pin, and it is possible to reduce the processing cost accordingly.
It is possible to provide a connector that can be reliably and easily mounted on the surface of a printed circuit board without the possibility that the pitch between the tips of the connector pins will be disturbed.

Further, the connector pin retainer fits inside the recess of the connector housing, and the lower ends of the connector pins from the connector housing also fit inside the through holes of the connector retainer without protruding from the rear surface position of the connector housing. Therefore, the connector housing integrally including the connector pin retainer can be easily, stably and aesthetically provided on the printed circuit board.

[Brief description of drawings]

1 to 6 relate to an embodiment of the present invention. FIG. 1 is a front view of a surface mount connector, FIG. 2 is a partially cutaway side view of the surface mount connector, and FIG. FIG. 4 (a) is a plan view of the connector pin retainer of the surface mount type connector of FIG. 1, and FIG. 4 (b) is a connector pin retainer of FIG. 4 (a). FIG. 5 is a side view showing another configuration example of the connector pin retainer, and FIG. 6 is a side view showing still another configuration example of the connector pin retainer. FIGS. 7 (a), (b) and (c) are side views of surface mount connectors of a conventional example. 1 ... Printed circuit board, 2 ... Surface mount connector, 3 ...
… Connector housing, 4a, 4b …… Connector pin, 7a, 7b
...... Through hole, 9a, 9b, 10a, 10b …… Conductive pattern, 1
1a, 11b ... Wiring pattern.

Continuation of front page (72) Inventor Toshio Hori 2-26-10 Tenjin, Nagaokakyo-shi, Kyoto Inside Murata Manufacturing Co., Ltd. (56) References 62-98254 (JP, U) JP, U)

Claims (1)

[Scope of utility model registration request] 1. A connector housing having a recess on the rear surface, the connector housing being mounted on the surface of the printed circuit board with the rear surface facing the surface of the printed circuit board; A plurality of connector pins that project straight toward the printed circuit board surface in the following dimensions, and a plurality of through holes having a diameter into which the connector pins can be inserted are formed at locations corresponding to the arrangement pitch of the connector pins. , A connector pin retainer attached to the surface of the printed circuit board in which a plurality of conductive patterns continuous from the inner peripheral surface to the outer surface of the through holes are formed and the overall height dimension is set to be equal to or less than the depth dimension of the recess of the connector housing. And each tip of the connector pin is Surface-mounted connector, characterized in that connected to the respective conductive patterns of the through-hole the inner circumferential surface is inserted into each of the lifting device.