JP2002008750A - Connecting structure for high frequency unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting structure capable of being manufactured at the low cost, and being stably fixed to a high frequency circuit board at a predetermined position in the predetermined direction. SOLUTION: This connecting structure uses a piece of square wire as a material and comprises a first terminal part 2 having a stepped part 2a on its tip part for adjusting the height of the terminal, a second terminal part 3 having the same shape as the first terminal and a connecting part 4 having a length corresponding to the length between the terminals, and integrally connecting the first terminal 2 and the second terminal 3 in the U-shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure and, more particularly, to a connection for a high-frequency unit for connecting a high-frequency circuit board disposed in a shield case to a predetermined external circuit in a high-frequency unit. Related to the structure.

[0002]

2. Description of the Related Art In a device for handling a high-frequency signal, such as a high-frequency signal receiver, a high-frequency unit for processing a high-frequency signal is used. The high-frequency unit includes a high-frequency circuit board and a shield case that shields the high-frequency circuit board from external electromagnetic waves. Further, one end of a predetermined plurality of connection lines is connected to the high-frequency circuit board, and the other end of the connection line extends outside the shield case,
Further, it is connected to a predetermined circuit.

FIG. 2 shows an example of a connection structure conventionally used in a high-frequency unit. The connector 10 shown in FIG. 2A has a plurality of square wires 11 and a plurality of square wires 1.
1 and a resin for fixing them at predetermined intervals. The interval between the square lines 11 corresponds to the interval between the connection holes 14 provided in the high-frequency circuit board 13. In this connection connector 10, one end of the square wire 11 is inserted into the connection hole 14 of the high-frequency circuit board 13 and then soldered. Corner line 1
The other end of 1 extends outward from a shield case serving as a housing of the high-frequency unit.

[0004] Further, as shown in FIG.
5 are also known. The terminal pin 15 is manufactured by press working and punching. One end of the terminal pin 15 is inserted into the connection hole 17 of the high-frequency circuit board 16 and connected to the high-frequency circuit board 16 by caulking (caulking) and soldering.

[0005] The connection connector 10 and the terminal pins 15 shown in FIG. 2 have a high manufacturing cost, which is one of the factors that raise the manufacturing cost of the high-frequency unit. Therefore, FIG.
The connection structure 18 shown in FIG. The connection structure 18 has a simple structure in which a middle part of the square is bent at substantially a right angle. One end of the connection structure 18 is
After being temporarily fixed to the connection hole 20 provided in the high-frequency circuit board 19 by press fitting, the high-frequency circuit board 1 is soldered.
9 is connected.

[0006]

The connection structure 18 shown in FIG. 3 has an advantage that it can be manufactured at low cost.
There is a problem in stability at the time of insertion and temporarily fixed state. That is, the connection structure 18 has a high degree of freedom in the vertical direction and the horizontal direction, that is, the directions of the arrows a and b shown in FIG. Therefore, the connection structure 1
It was difficult to accurately fix 8 at a predetermined position and a predetermined direction.

Accordingly, the present invention has been made in view of the above problems, and has as its object to provide a connection structure for a high-frequency unit which can be manufactured at low cost and can be stably connected to a high-frequency circuit board. And

[0008]

In order to achieve the above-mentioned object, a connection structure for a high-frequency unit according to the present invention is formed by bending, and comprises a first terminal portion and a first terminal portion. 2 and a connecting portion having a length corresponding to the dimension between terminals and connecting the first terminal portion and the second terminal portion integrally in a U-shape. Preferably, the first
A kink portion is provided between each of the terminal portions and the connection portion, and between the second terminal portion and the connection portion, and after the first terminal portion and the second terminal portion are connected to a predetermined substrate, Then, the connection portion is cut off by cutting the kink portion.

The high-frequency unit connecting structure according to the present invention is manufactured at low cost, and the stepped portion regulates the vertical movement of the first and second terminal portions, and the first and second terminal portions are connected to each other. And the terminal portions are integrated via the connection portion, so that the movement of both terminal portions in the horizontal rotation direction is restricted.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a connection structure for a high-frequency unit according to an embodiment of the present invention.

FIG. 1 is a perspective view showing the structure of a connection structure 1 to which the present invention is applied. This connection structure 1 is used for connecting a high-frequency circuit board provided in a high-frequency unit and an external processing circuit. This connection structure 1
It is formed by bending one square wire cut to a predetermined length.

As shown in FIG. 1, the connection structure 1 includes a pair of first and second terminals 2 and 3 having the same shape. First
The second terminal portions 2 and 3 are integrally formed in a U-shape via a connection portion 4. Between the connecting portion 4 and the first and second terminal portions 2 and 3 are thin kink portions 5 and 6 respectively.
Is provided.

Stepped portions 2a and 3a are formed at the ends of the first and second terminal portions 2 and 3 opposite to the side connected by the connection portion 4 by bending. The height w of the steps 2 and 3 shown in FIG. 1 is for adjusting the height of the terminal.

Next, a process of connecting the connection structure 1 to the high-frequency circuit board 7 will be described.

The first and second terminal portions 2 of the connection structure 1
3 is inserted into two adjacent first and second connection holes 8 and 9 formed in the high-frequency circuit board 7, respectively.
The length l of the connection portion 4 in the longitudinal direction, that is, the distance between the terminal portion 2 and the terminal portion 3 is determined by the first connection hole 8 and the second connection hole 9.
Is formed to be equal to the interval between Therefore, at the same time that the tip of the first terminal 2 is inserted into the connection hole 8, the second terminal 3 is inserted into the second connection hole 9.

The first and second terminal portions 2 and 3 are inserted into the first and second connection holes 8 and 9, and after a caulking process (caulking) is performed on the connection portions, a soldering process is performed. Alternatively, the first and second terminal portions 2 and 3 are adjusted so that the outer diameter shape and dimensions thereof are substantially equal to the inner diameter shape and dimensions of the first and second connection holes 8 and 9, thereby obtaining the first terminal portions. It is also possible to press-fit the second terminal portions 2 and 3 into the first and second connection holes 8 and 9 and temporarily fix them.

When the first and second terminal portions 2 and 3 are inserted or press-fitted into the first and second connection holes 8 and 9, the step provided on the first and second terminal portions 2 and 3 is performed. The first and second terminal portions 2 and 3 are restricted from moving in the vertical direction by the contact portions 2a and 3a contacting the high-frequency circuit board 7, and thus the first
In addition, the second terminal portions 2 and 3 are stable without being shaken.

Further, since the first and second terminal portions 2 and 3 are integrally formed in a U-shape by the connecting portion 4 via the kink portions 5 and 6 as described above, the first and second terminal portions 2 and 3 move in the horizontal direction. That is, the rotation of the first and second terminal portions 2 and 3 around the portions inserted into the connection holes 8 and 9 is regulated. Therefore, the first and second terminal portions 2 and 3 are stably fixed in a state of being inserted or press-fitted into the high-frequency circuit board 7, thereby eliminating the wobble in the vertical and horizontal directions as in the related art. .

As described above, since the connection structure 1 can be manufactured from only one square wire cut to an appropriate length, it can be manufactured at low cost. Therefore, by using the connection structure 1, the manufacturing cost of the high-frequency unit can be reduced. Further, as described above, the connection structure 1 suppresses the wobble in the vertical direction of the first and second terminal portions 2 and 3 by the step portions 2a and 3a,
In addition, since the first and second terminal portions 2 and 3 are integrated with each other via the connection portion 4 to prevent the first and second terminal portions 2 and 3 from wobbling in the horizontal direction, the terminal Parts 2, 3
Is stably fixed at a predetermined position and a predetermined direction in a temporarily fixed state.

As described above, the first and second terminal portions 2 and 3 are inserted or press-fitted into the connection holes 8 and 9 of the high-frequency circuit board 7 and subjected to a soldering process. Two, three
Is connected to the high-frequency circuit board 7, and the kink portions 5 and 6 of the connection structure 1 are cut. As a result, the connecting portion 4
And the second terminals 2 and 3. By cutting the kink portions 5 and 6 in this manner, the distal ends of the terminal portions 2 and 3 separated from the connection portion 4 have predetermined openings provided on the side surfaces of a shield case serving as a housing of the high-frequency unit. Via the high frequency unit, and further connected to a predetermined processing circuit.

[0021]

As described above, the connection structure for a high-frequency unit according to the present invention is formed of a single square wire, and has a stepped portion at the tip end for adjusting the terminal height. A terminal portion, a second terminal portion having the same shape as the first terminal portion, and a length corresponding to a terminal-to-terminal dimension, wherein the first terminal portion and the second terminal portion are formed in a U-shape. Since the connector is provided with the connecting portion that is integrally connected, it can be manufactured at low cost and can be stably fixed to the high-frequency circuit board at a predetermined position and orientation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connection structure to which the present invention is applied.

FIG. 2 is a perspective view showing a conventional connection connector and connection pins.

FIG. 3 is a diagram showing a conventional simple connection structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection structure 2 1st terminal part 3 2nd terminal part 4 Connection part 5 1st kink part 6 2nd kink part 7 High frequency circuit board 8 1st connection hole 9 2nd connection hole

Claims (2)

[Claims] A first terminal portion, a second terminal portion, and a length corresponding to a dimension between terminals, wherein the first terminal portion and the second terminal are formed by bending. A connection structure for a high-frequency unit, comprising: a connection portion for integrally connecting the portions in a U shape. 2. A kink part is provided between the first terminal part and the connection part, and between the second terminal part and the connection part, respectively, and the first terminal part and the second terminal part are provided. A connection structure for a high-frequency unit, wherein the connection portion is cut off by cutting the kink portion after connecting to the predetermined substrate.