JPH0624138Y2 - Structure for mounting the connector on the frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a structure for mounting a connector on a frame.

(Prior Art) FIGS. 4 to 6 relate to a conventional connector mounting structure to a frame, and FIG. 4 is a perspective view showing a state before fixing an end portion of the connector to a mounting hole of the frame. FIG. 5 is a side sectional view showing a state before fixing the end of the connector to the mounting hole of the frame and fixing the printed wiring board, and FIG. It is a side surface sectional view showing the state after fixing a wiring board.

In these drawings, reference numeral 2 is a frame that constitutes a side wall of a housing having a structure in which at least a lower side is opened for mounting a printed wiring board. This housing is for a high-frequency device such as a UHF tuner. An octagonal mounting hole 7 for mounting and fixing the end 6 of the F-type connector 4 is formed through the frame 2. The frame 2 also has stoppers 8 and 8 which come into contact with the upper surface side 14 of the printed wiring board 12 when the printed wiring board 12 is accommodated from the lower opening 10 of the housing as described later. , Are formed so as to face each other with the mounting hole 7 in between.

The connector 4 is provided with a lead terminal 16 which is formed by bending the end portion 6 at a right angle. And the connector 4
From the state of FIG. 4 to its lead terminal 1 as shown in FIG.
The end portion 6 is mounted in the mounting hole 7 of the frame 2 by curling and caulking so that the end surface 6 faces the inside of the housing.

In this way, as shown in FIG. 5, the mounting holes 7 of the frame 2
After the end portion 6 of the connector 4 is attached to the printed wiring board 12, the printed wiring board 12 located below the opening 10 of the housing is lifted upward and formed on the printed wiring board 12 as shown in FIG. The front end portion 22 of the lead terminal 16 of the connector 4 is inserted into the insertion hole 20, and then the upper surface 14 of the printed wiring board 12 abuts against the stoppers 8, 8 of the frame 2 to displace the printed wiring board 12 as shown in FIG. Is fixed. After this fixing, the wiring pattern near the insertion hole 20 on the back surface side of the printed wiring board 12 and the tip portion 22 of the lead terminal 16 are soldered. This soldering is usually performed at the same time as the soldering of electronic components on the printed wiring board 12 by solder dipping or the like.

(Problems to be Solved by the Invention) In the conventional mounting structure as described above, the lead terminal 16 is bent at the bent portion 18 at a right angle toward the insertion hole 20 of the printed wiring board 12. Therefore, in order to insert the tip portion 22 into the insertion hole 20 of the printed wiring board 12 arranged as shown in FIG. 5 below the opening 10 of the housing, as shown in FIG.
It is necessary to position the tip portion 22 of the lead terminal 16 just above the insertion hole 20.

However, since the lead terminal 16 is often made of a spring material, the lead terminal 16 is bent at the bent portion 18
It is difficult to bend at a right angle with
As shown in the figure, the tip portion 22 of the lead terminal 16 shown by the solid line may come to the position of the tip portion 22 'shown by the broken line.

If the tip portion 22 comes to such a position, there is a problem that the tip portion 22 cannot be inserted into the insertion hole 20 of the printed wiring board 12. In order to eliminate such a problem, it is preferable to make the hole diameter of the insertion hole 20 as large as possible. However, when the hole diameter is made large, the insertion hole 20 on the back surface side of the printed wiring board 12 is required.
Since the distance between the wiring pattern in the vicinity and the tip 22 is increased, the soldering between the wiring pattern and the tip 22 is deteriorated, and extra work such as reworking of the soldering is required. There was a problem that became.

The present invention has been made in view of the above-mentioned problems, and even if the hole diameter of the insertion hole of the printed wiring board is increased, the tip portion of the lead terminal and the vicinity of the insertion hole on the back surface side of the printed wiring board are close to each other. Make sure that the space between the lead pattern and the wiring pattern does not widen, and that even if the tip of the lead terminal is slightly displaced from the insertion hole, the tip of the lead terminal can be easily and reliably inserted into the insertion hole. The purpose is to enable good soldering between the two.

(Means for Solving the Problems) In order to achieve such an object, in a structure for mounting a connector on a frame of the present invention, the lead terminals in the above-described conventional mounting structure are bent at at least two locations, and the connector is The first internal angle formed by the lead terminal portions on both sides of the bent portion near the end is an obtuse angle, and the lead terminal portion on both sides is centered on the bent portion on the side far from the connector end. The interior angle of is an obtuse angle larger than the first interior angle.

(Operation) According to the structure of the lead terminal described above, when the printed wiring board is lifted from below the opening of the housing, the insertion hole of the printed wiring board is slightly displaced from the tip of the lead terminal. However, the edge of the insertion hole is located at any part of the lead terminal part on the tip side of the two lead terminal parts located on both sides of the bent part on the side far from the connector end. As long as they are in contact with each other, the leading end of the lead terminal is guided by the lead terminal portion on the leading end side as the printed wiring board is lifted, and the lead hole is allowed to penetrate. Become.
After the insertion, the lead terminal is in a state of being close to one side of the insertion hole due to its shape and spring property, and it becomes easy to solder the pattern near the insertion hole on the back surface of the printed wiring board and the lead terminal portion.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view showing a state before an end portion of the connector is attached to a mounting hole of a frame in a structure for mounting a connector to a frame according to an embodiment of the present invention, and FIG. 2 is a mounting hole of the frame. FIG. 3 is a side sectional view showing a state before fixing the end of the connector to the printed wiring board and FIG. 3 is a side sectional view showing a state after fixing the printed wiring board in FIG. Is.

In these drawings, the same reference numerals as those shown in FIGS. 3 to 5 according to the conventional example indicate the same parts, parts and the like indicated by the reference numerals. Regarding the relationship of the configuration, the present example and the conventional example have the same configuration unless otherwise specified.

In this embodiment, the configuration different from the conventional example is as follows.

That is, in the mounting structure of the present embodiment, the lead terminal 16 is bent at at least two places, and the lead terminal portions 26 and 28 formed on both sides of the bend portion 24 near the connector end 6 are centered. 1 is an obtuse angle, and the second inner angle θ2 formed by the lead terminal portions 28 and 32 on both sides of the bent portion 30 far from the connector end 6 is an obtuse angle larger than the first inner angle θ1. There is a feature in that.

According to the structure of the lead terminal 16 of the present embodiment, when the printed wiring board 12 is lifted from below the opening 10 of the housing, the insertion hole 20 of the printed wiring board 12 is provided.
However, even if the lead terminal 16 is slightly displaced from the tip end portion 22, the bent portion 30 on the side far from the connector end portion 6
Of the two lead terminal portions 28, 32 located on both sides of the lead terminal 3 as a center, the lead terminal portion 3 on the tip 22 side
As long as the edge of the insertion hole 20 is in contact with any position of 2, the tip portion 22 of the lead terminal 16 is attached to the lead terminal portion 32 on the tip portion 22 side as the printed wiring board 12 is lifted. As it is guided, the insertion hole 20 is penetrated.

Further, according to the present embodiment, even when the hole diameter of the insertion hole 20 of the printed wiring board 12 is increased, the lead terminal portion 32 of the lead terminal 16 inserted into the insertion hole 20 and the back surface of the printed wiring board 12 are inserted. In the case of soldering with the wiring pattern on the side, the distance between the lead terminal portion 32 and the wiring pattern becomes short, and as a result, the soldering can be satisfactorily performed with a sufficient amount of solder 34. .

(Effect) As is apparent from the above description, according to the present invention,
Even if the tip portion of the lead terminal is slightly displaced from the insertion hole of the printed wiring board to a tip portion 22 'shown by the broken line in FIG. 2, the tip portion of the lead terminal can be easily and securely inserted into the insertion hole. In addition, even if the diameter of the insertion hole is increased, the distance between the tip of the lead terminal and the wiring pattern near the insertion hole on the back surface side of the printed wiring board can be prevented from widening. As a result, it is possible to provide a mounting structure that allows good soldering between the two.

[Brief description of drawings]

1 to 3 relate to an embodiment of the present invention, and FIG. 1 shows a state before attaching an end portion of the connector to a mounting hole of a frame in a structure for mounting a connector to a frame according to the embodiment of the present invention. FIG. 2 is a side sectional view showing a state before fixing the end of the connector to the mounting hole of the frame and fixing the printed wiring board, and FIG. FIG. 6 is a side sectional view showing a state after fixing the printed wiring board in FIG. 4 to 6 relate to a conventional example, and FIG. 4 is a perspective view showing a state before attaching an end portion of the connector to a mounting hole of a frame in a structure for mounting a connector to a frame according to the conventional example. FIG. 5 is a side sectional view showing the state before fixing the end of the connector to the mounting hole of the frame and fixing the printed wiring board, and FIG. 6 is the printed wiring board in FIG. It is a side sectional view showing a state after fixing the. 2 ... Frame, 4 ... Connector, 6 ... Connector end, 7
... Mounting holes, 8 ... Stops, 10 ... Openings, 12 ... Printed wiring board, 14 ... Top surface of printed wiring board, 16 ...
Lead terminals, 20 ... Insertion holes in printed wiring board, 22 ...
Lead terminal end portions, 24, 30 ... Lead terminal bent portions, 26, 28, 32 ... Lead terminal portions on both sides of the lead terminal bent portions, .theta.1, .theta.2 ... Interior angles at the bent portions.

Claims (1)

[Scope of utility model registration request] 1. A lead terminal projecting from an end of a connector is penetrated through a mounting hole formed in a frame forming a side wall of a casing having at least a lower side opened for mounting a printed wiring board. In this state, the connector end is fixed and attached to the frame portion around the attachment hole, and the lead terminal facing the inside of the housing is bent in the lower direction at an intermediate position. A mounting structure of a connector to a frame, which is formed by inserting an end portion of the bent lead terminal into an insertion hole formed in the printed wiring board housed from the lower opening, The lead terminal should be bent at at least two points, and the leads on both sides of the bent point near the connector end should be centered. The first inner angle formed by the lead terminal portion is an obtuse angle, and the second inner angle formed by the lead terminal portions on both sides of the bent portion far from the connector end is an obtuse angle larger than the first inner angle. A structure for mounting a connector on a frame, which is characterized in that