JPH05102635A - Electronic circuit device - Google Patents

Abstract

PURPOSE:To stabilize operation and prevent short-circuiting and also realize easy isolation and removal by reducing the thickness to the minimum thickness and impeding mutual interference by electromagnetic coupling. CONSTITUTION:The highest electronic parts 13, 14 and the lowest electronic parts 15, 16 respectively mounted on two sheets of printed circuit boards 11, 12 are arranged opposed with each other to minimize the thickness. A metal conductive plate 17 at the insulated surface is provided between the printed circuit boards 11 and 12 to impede mutual interference by electromagnetic coupling for stabilized operation and also impede the short-circuiting between electronic parts 13, 14 and electronic parts 15, 16. The printed circuit boards 11, 12 are connected through connectable and disconnectable connectors 18, 19 for the purpose of isolation and removal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic circuit device used in a car phone, a mobile phone and the like.

[0002]

2. Description of the Related Art FIG. 2 shows the configuration of a conventional electronic circuit device. In FIG. 2, 1 and 2 are printed circuit boards, 3,
4, 5, and 6 are electronic components. Electronic components 3 and 4 are mounted on the printed circuit board 1, and electronic components 5 and 6 are also mounted on the printed circuit board 2. The printed circuit boards 1 and 2 have their non-mounting surfaces bonded together with an adhesive, and are wholly integrated.

[0003]

By the way, in the conventional electronic circuit device, the total thickness thereof is the total of the printed circuit board 1, the electronic component 4, the printed circuit board 2 and the electronic component 6. Therefore, the electronic circuit device including the printed boards 1 and 2 and the electronic components 3, 4, 5, and 6 cannot be arranged in the housing within the total thickness, in other words, the thickness of the housing. Has the disadvantage that it increases.

The present invention is to solve such a problem, and can reduce the thickness to the minimum, prevent mutual interference due to electromagnetic coupling to stabilize the operation, and prevent a short circuit, and easily. It is an object of the present invention to provide an excellent electronic circuit device that can be separated and removed.

[0005]

In order to achieve this object, in an electronic circuit device of the present invention, a first electronic component having a high height and a second electronic component having a low height are mounted on the same surface. A first printed circuit board, a third electronic component having a high height and a first electronic circuit disposed on the mounting surface of the first printed circuit board facing the mounting surface of the first printed circuit board. Between a second printed circuit board on which a fourth electronic component having a low height and arranged to face the component is mounted, and between the first and second electronic components and the third and fourth electronic components It is provided with a shielding member arranged, and a connector for detachably and electrically and mechanically connecting the first printed circuit board and the second printed circuit board.

[0006]

Therefore, according to the electronic circuit device of the present invention,
An electronic component having a high height and an electronic component having a low height, which are mounted on two printed circuit boards, are arranged so as to face each other, and a shielding member having an insulated surface is disposed between the two electronic circuit boards. Since it is connected with a connector, the thickness can be reduced to the minimum, and mutual interference due to electromagnetic coupling is prevented to stabilize the operation, short circuit can be prevented, and it can be easily separated and removed.

[0007]

Embodiments of the electronic circuit device of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of the embodiment. In FIG. 1, 11 is a printed circuit board (corresponding to the first printed circuit board), 13 and 15 are electronic components mounted on the printed circuit board 11, and the electronic component 13 (corresponding to the first electronic circuit) has the highest height. High, electronic component 15 (corresponding to the second electronic component)
Is the lowest height. 12 is a printed circuit board (corresponding to the second printed circuit board), 14 and 16 are electronic parts mounted on the printed circuit board 12, and the electronic part 14 (corresponding to the third electronic part) has the highest height. The height is high, and the electronic component 16 (corresponding to the fourth electronic component) has the lowest height. Reference numeral 17 denotes a metal conductor plate (corresponding to a shielding member) whose both surfaces are insulated. Denoted at 18 and 19 are detachable connectors for electrically connecting the printed circuit boards 11 and 12,
Moreover, it is mechanically held.

Next, the function of this configuration will be described.
An electronic component 16 having the lowest height mounted on the printed board 12 is arranged so as to face the electronic component 13 having the highest height mounted on the printed board 11. Similarly, the electronic component 15 is arranged so as to face the electronic component 14.

Printed circuit boards 11 and 12 and electronic component 1
A metal conductor plate 17 whose both surfaces are insulated is arranged between 3, 15 and the electronic components 14, 16 to prevent mutual interference due to electromagnetic coupling and short circuit.

The printed circuit boards 11 and 12 refer to the connector 1
It is electrically connected by 8 and 19 and is mechanically held.

As described above, considering the heights of the electronic components 13 and 15 mounted on the printed circuit board 11 and the electronic components 14 and 16 mounted on the printed circuit board 12, that is, the electronic component 13 having the highest height, Since 14 and the electronic components 15 and 16 having the lowest height are arranged to face each other, the thickness can be reduced to the minimum.

The metal conductor plate 17 is attached to the printed circuit board 11,
Since it is arranged between the electronic parts 13 and 12, it prevents mutual interference due to electromagnetic coupling and operates stably,
A short circuit between 15 and the electronic components 14, 16 can be prevented.

Furthermore, since the printed circuit boards 11 and 12 are connected by the removable connectors 18 and 19, they can be easily separated and removed, and the subsequent maintenance becomes easy.

[0015]

As is apparent from the above description, in the electronic circuit board device of the present invention, an electronic component having a high height mounted on two printed circuit boards and an electronic component having a low height are opposed to each other. And the shielding member whose surface is insulated is placed between them, and since the two printed circuit boards are connected by the connector, the thickness can be reduced to the minimum and mutual interference due to electromagnetic coupling is prevented. The operation is stable, a short circuit can be prevented, and it can be easily separated and removed.

[Brief description of drawings]

FIG. 1 is a side view showing a configuration of an embodiment of an electronic circuit device of the present invention.

FIG. 2 is a side view showing the configuration of a conventional electronic circuit device.

[Explanation of symbols]

 11, 12 Printed circuit board 13, 14, 15, 16 Electronic component 17 Metal conductor plate 18, 19 Connector

Claims (1)

[Claims] 1. A first printed board on which a first electronic component having a high height and a second electronic component having a low height are mounted on the same surface, and a mounting surface of the first printed board facing each other. On the mounting surface, a third electronic component having a high height arranged to face the second electronic component and a fourth electronic component having a low height arranged to face the first electronic component. The second where and are implemented
The printed circuit board, the shielding member arranged between the first and second electronic components and the third and fourth electronic components, and the first printed circuit board and the second printed circuit board. An electronic circuit device that includes a connector that can be electrically and mechanically connected.