JPH0625995Y2 - Electronic circuit equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an electronic circuit device, and more particularly to an electronic circuit device in which electronic parts are mounted on a printed wiring board with a shield case.

[Conventional technology]

Conventionally, when an electronic circuit device has a plurality of electronic circuit blocks and is composed of a printed wiring board, a shield chamber is formed for each block in order to prevent mutual interference between the electronic circuit blocks. It was

2 (a) and 2 (b) are a plan view and an AA 'line sectional view of an example of a conventional electronic circuit device.

Electronic circuit device includes a printed wiring board 11 having a plurality of insertion terminals printed wiring layers, two shield chamber printed board 11 _a, 11 _b and the circuit block 14 a which is them mounted electronic components _6, 14 _b and their Shield side plate 1
The shield chambers 17 _a and 17 _b surrounded by 3 _g and the three-dimensional relay wiring body 12 that connects the two circuit blocks 14 _a and 14 _b through the holes on the upper side of the shield side plate 13 _g , and the upper and lower shield plate lids 5 and a _u and _{5 D.}

[Problems to be solved by the invention]

In the conventional electronic circuit device described above, it is necessary to divide the printed wiring board into a plurality of parts corresponding to a plurality of shield chambers and perform three-dimensional wiring through the holes in the upper part of the shield side plate for circuit wiring connection between the shield chambers. Therefore, there is a problem that the assembly structure of the electronic circuit device becomes complicated and the working time is long.

An object of the present invention is to provide an electronic circuit device with a shield case having a small assembly structure.

[Means for solving problems]

The electronic circuit device of the present invention comprises a shield case having a shield chamber partitioned corresponding to a plurality of circuit blocks in which a plurality of electronic components are mounted on a printed circuit board, and a cutout portion of a shield side plate surrounding the shield chamber. In an electronic device including a relay wiring layer body that connects the circuit block to an adjacent or external circuit, the printed wiring board is formed so as to surround each shield chamber except a portion of the relay wiring layer body. A plurality of side plate apertures, the shield side plate penetrates the side plate apertures and is electrically and mechanically coupled to the shield lid at the penetration destination of the printed wiring board, and the relay The wiring layer body is composed of a printed wiring layer.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings.

1 (a) and 1 (b) are a plan view and a sectional view taken along the line AA 'of one embodiment of the present invention.

The electronic circuit device includes a shield case 3 having shield chambers 7 _a and 7 _b divided corresponding to two circuit blocks 4 _a and 4 _b each having a plurality of electronic components 6 mounted on a single printed wiring board 1. The shield side plate 3 _g having a shape surrounding the shield chambers 7 _a and 7 _b has a relay printed wiring layer 2 _e on the relay portion 1 _g corresponding to a plurality of recesses formed by cutting out a plurality of upper portions, and a shield lid 5.

The printed wiring board 1, the convex portion of the plurality of side plates to the shield plate upper portion of the shield case 3 (i.e., the side plate portion of the portion other than the concave portion) apertures 1 _a ~ for the side plate corresponding to 3 _a to 3 _d
It has 1 _d .

The shield chamber 7 _a, 7 _b and the connection between the shield outside is performed via the relay printed wiring layer 2 _e.

Mounting and convex portions 3 of the concave portion of the shield plate and the relay unit 1 _{g
The a} to _3d and the shield lid 5 are attached with screws.

[Effect of device]

As described above, according to the present invention, by assembling a plurality of electronic circuit blocks divided into a plurality of shield chambers on one printed wiring board having a plurality of openings, an electronic circuit having a shield case can be easily assembled. There is an effect that the equipment can be obtained.

[Brief description of drawings]

1 (a) and 1 (b) are a plan view and an AA 'sectional view of an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are plan views of an example of a conventional electronic circuit device. It is an AA 'line sectional view. 1 ... printed circuit _{board, 1} a to 1 d _... opening, 2 e _... relay printed wiring layer, 3 ... shield _case, 3 a to 3 _d ...
Convex part, 3 _g ... Shield side plate, 4 _a , 4 _b ... Circuit block, 6 ... Component, 7 _a , 7 _b ... Shield chamber.

Claims (1)

[Scope of utility model registration request] 1. A shield case having a shield chamber partitioned corresponding to a plurality of circuit blocks in which a plurality of electronic components are mounted on a printed wiring board, and a shield side plate having a shape surrounding the shield chamber, the shield case being passed through the shield case. In an electronic device including a circuit block and a relay wiring layer body that is adjacent to or connected to an external circuit, a plurality of printed wiring boards formed so as to surround each shield chamber except a portion of the relay wiring layer body. A side plate opening, the shield side plate penetrates through the side plate opening and is electrically and mechanically coupled to a shield lid that is a penetration destination of the printed wiring board; and the relay wiring layer body. Is a printed wiring layer, which is an electronic circuit device.