JP2584500Y2 - Coaxial cable mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a circuit board for fixing and connecting an external coaxial cable to a circuit board.
The present invention relates to a coaxial cable mounting structure.

[0002]

2. Description of the Related Art Conventionally, for example, a planar antenna device is shown in FIG.
Is configured as shown in FIG. That is, in FIG.
The planar antenna device 1 includes a mounting plate 3 on which a planar antenna element 2 is mounted, a circuit board 4 on which a circuit for processing a signal received by the planar antenna element 2 is mounted, and an output terminal of the circuit board 4. And a coaxial cable 5 (shown in FIG. 8) connected to the connection portion. The above components 2, 3, and 4 can be accommodated in a case (not shown).

In such a planar antenna device 1, the coaxial cable 5 is connected to the mounting plate 3 on a projecting portion 4a extending outward from the circuit board 4, as shown in FIG. A separate mounting part 6 such as a clamp is provided, and a shield conductor 5b from which the outer jacket 5a at the end of the coaxial cable 5 is removed is soldered to the mounting part 6. A fixing member 7 is attached to the protruding portion 4a, and the jacket 5a of the coaxial cable 5 is fixed to the fixing member 7. In some cases, this fixture was connected by a connector.

According to the coaxial cable mounting structure thus configured, the mounting component 6 is attached to the protruding portion of the mounting plate 3.
And the fixing metal 7 is attached to fix the jacket 5a of the coaxial cable 5 to the fixing metal 7, and the shield conductor 5b of the coaxial cable 5 is soldered to the mounting part 6. By soldering the core wire 5c of the coaxial cable 5 to the connection portion on the circuit board 4, the attachment of the coaxial cable 5 is completed.

[0005]

However, in the coaxial cable mounting structure thus configured, the mounting component 6 and the fixing bracket 7 are required for mounting the coaxial cable 5. Therefore, the number of parts increases, the parts cost increases, and assembling is complicated and time-consuming. For this reason, there has been a problem that the overall manufacturing cost and the assembly cost of the flat antenna device and the like are increased.

[0006] A shield conductor 5 of a coaxial cable is provided.
When soldering the mounting component 6 to the mounting component 6, the mounting component 6 may move or fall off, and the shield conductor 5 a of the coaxial cable may be displaced. There was also a problem that was bad.

SUMMARY OF THE INVENTION In view of the above, the present invention can reduce the number of components by a simple structure, and can improve the workability of soldering without displacing the coaxial cable and improving the workability of soldering. It is intended to provide.

[0008]

In order to achieve the above object,
According to the present invention, the circuit board includes a circuit board on which various components are mounted, and a mounting plate laminated so as to cover the surface of the circuit board. An electronic circuit to which the coaxial cable is connected, wherein the mounting plate has a pair of claw portions cut and raised in a region corresponding to the connection portion of the circuit board, and The connecting portion is provided with a through hole through which the claw portion penetrates, and the claw portion of the mounting plate passes through the through hole of the circuit board, and is used for shielding the coaxial cable on the circuit board. This is achieved by a coaxial cable mounting structure characterized in that the conductor is soldered while holding the conductor.

[0009] In the coaxial cable mounting structure according to the present invention, preferably, the mounting plate has a pair of second claw portions cut and raised at a tip end side of the claw portion, and The jacket portion is fixed and held by being clamped by the second claw portion.

[0010]

According to the above construction, the coaxial cable can be sandwiched by the claw portions of the mounting plate and connected by soldering. Therefore, at the time of mounting, the shield conductor portion of the coaxial cable to be soldered first is mounted. , Sandwiched by the claws,
The coaxial cable can be attached by temporarily fixing the shield conductor portion and then soldering the shield conductor portion to the claws, so that the coaxial cable can be attached separately. Since the number of mounting parts is not required, the number of parts can be reduced, and thus the cost of parts and the cost of assembly can be reduced.

In addition, since the shielding conductor of the coaxial cable is temporarily fixed at the time of soldering, the shielding conductor of the coaxial cable does not shift during the work. Since the soldering is reliably performed, the workability is improved and the reliability of the soldering is also improved.

The mounting plate has a pair of cut and raised second claw portions on the tip side from the claw portions, and a jacket portion of the coaxial cable is formed by the second claw portions. By being clamped, when it is fixed and held, the fixing bracket for attaching the jacket part of the coaxial cable becomes unnecessary,
Further, the number of parts can be reduced, and the fixing operation can be easily performed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. 1 to 3 show one embodiment of a planar antenna device to which a coaxial cable mounting structure according to the present invention is applied.

In FIG. 1, a planar antenna device 10 comprises:
A mounting plate 12 to which the planar antenna element 11 is mounted;
The circuit board 13 includes a circuit board 13 on which a circuit for processing a signal received by the planar antenna element is mounted, and a coaxial cable 14 connected to a connection portion provided as an output terminal of the circuit board 13. Components 11, 12, 13
Can be accommodated in the case 15.

The circuit board 13 has a protrusion 13a extending leftward in the drawing.
3a, the mounting plate 12 also has a protruding portion 12a extending leftward in the drawing.

Further, as shown in FIG. 3, the mounting plate 12 has a pair of claws 12b cut and raised on the upper surface of the protruding portion 12a.
3 through the through hole 13b provided in the projection 13a,
It extends above the circuit board 13.

The coaxial cable 14 has a shielded conductive portion 14b from which the outer jacket 14a is removed, and is sandwiched by a pair of claws 12b extending above the circuit board 13, and is further soldered. It is electrically connected.

Further, a jacket 14a of the coaxial cable 14 is provided.
Are projecting portions 12a of the mounting plate 12 and the circuit board 13,
In the vicinity of the tip of 13a, it is fixed and held by the fixing bracket 16.

Coaxial cable mounting structure 10 according to the present invention
Is configured as described above, and when attaching the coaxial cable 14, first, the shield conductor 14 b at the tip of the coaxial cable 14 is connected to the protrusion 13 a of the circuit board 13.
The tip of the coaxial cable 14 is temporarily fixed by bending, caulking, and clamping the vicinity of the upper end of the claw 12b along the outer periphery of the shielding conductor 14b by a pair of claw portions 12b extending to the upper surface of the coaxial cable 14. I do.

Thereafter, the shield conductor portion 14b of the coaxial cable 14 is soldered to the claw portion 12b. On the other hand, a jacket 14a near the tip of the coaxial cable 14
Is fixed to the mounting plate 12 and the circuit board 1 by the fixing bracket 16.
3 with respect to the projections 12a and 13a. Thus, the attachment of the coaxial cable 14 is completed.

4 to 6 show another embodiment of the planar antenna device to which the coaxial cable mounting structure according to the present invention is applied. In FIG. 4, the planar antenna device 20
Is a mounting plate 12 on which the planar antenna element 11 is mounted.
A circuit board 13 on which a circuit for processing a signal received by the planar antenna element is mounted, and a coaxial cable 1 connected to a connection portion provided as an output terminal of the circuit board 13
4 and each of the above components 11, 12,
13 can be accommodated in the case 15.

The circuit board 13 has a projection 13a extending leftward in the drawing.
3a, the mounting plate 12 also has a protruding portion 12a extending leftward in the drawing.

As shown in FIG. 6, the mounting plate 12 has a pair of claws 12b cut and raised on the upper surface of the protruding portion 12a and a pair of claws 12b cut and raised on the tip side from the claws 12b. A pair of second claws 12c. The claws 12b and 12c are respectively provided on the protruding portions 13 of the circuit board 13.
a through the through hole 13b provided in the circuit board 13
Extends above.

In the coaxial cable 14, the shield conductive portion 14b from which the outer jacket 14a at the end is removed is sandwiched by a pair of claws 12b extending above the circuit board 13, and furthermore, is soldered. It is electrically connected.

Further, a jacket 14a of the coaxial cable 14 is provided.
Is a second claw portion 12c extending above the circuit board 13.
By being held between the mounting plate 12 and the circuit board 13, it is fixed and held.

According to the embodiment having such a configuration, when the coaxial cable 14 is attached, the coaxial cable 1 is first mounted.
The front end portion of the coaxial cable 14 is temporarily fixed by sandwiching the shield conductor portion 14b at the end of No. 4 with a pair of claws 12b extending on the upper surface of the projecting portion 13a of the circuit board 13. Thereafter, the shield conductor portion 14b of the coaxial cable 14 is soldered to the claw portion 12b.

On the other hand, the jacket 14a near the end of the coaxial cable 14 is fixed to the mounting plate 12 and the circuit board 13 by being sandwiched by the second claws 12c.
Thus, the attachment of the coaxial cable 14 is completed.

[0028]

As described above, according to the present invention, the number of components can be reduced with a simple configuration, and the coaxial cable does not shift and the workability of soldering is improved. An excellent coaxial cable mounting structure can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an embodiment of a planar antenna device to which a coaxial cable mounting structure according to the present invention is applied.

FIG. 2 is a side view of the planar antenna device of FIG. 1 with a case removed.

3A and 3B show a mounting plate in the planar antenna device of FIG. 1, wherein FIG. 3A is a plan view, FIG. 3B is a side view, and FIG. 3C is a front view.

FIG. 4 is a schematic side view showing another embodiment of the planar antenna device to which the coaxial cable mounting structure according to the present invention is applied.

5 is a side view of the planar antenna device of FIG. 4 with a case removed.

6A and 6B show a mounting plate in the planar antenna device of FIG. 4, wherein FIG. 6A is a plan view, FIG. 6B is a side view, and FIG. 6C is a front view.

FIG. 7 is an exploded perspective view showing a main part of an example of a conventional planar antenna device.

8 is a side view of the planar antenna device of FIG. 7 with a case removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Planar antenna apparatus 11 Planar antenna element 12 Mounting plate 12a Projection part 12b Claw part 12c Second claw part 13 Circuit board 14 Coaxial cable 15 Case 16 Fixing bracket

Claims (2)

(57) [Scope of request for utility model registration] A circuit board on which various components are mounted;
And a mounting plate laminated so as to cover the surface of the circuit board.
And the connection part on the circuit board is drawn in from outside.
In an electronic circuit to which the coaxial cable is connected, the mounting plate is cut at an area corresponding to the connection portion of the circuit board.
The circuit board has a pair of raised claw portions , and the connection portion of the circuit board has
A hole is provided, and the claw portion of the mounting plate passes through the through hole of the circuit board;
Narrow the shielding conductor of the coaxial cable on the circuit board.
Coaxial characterized by being soldered while holding
Cable mounting structure. 2. The mounting plate according to claim 1, further comprising:
It has a pair of cut and raised second claws, and the jacket portion of the coaxial cable is fixedly held by being pinched by the second claws. Item 2. A coaxial cable mounting structure according to item 1.