JPH04797U

JPH04797U -

Info

Publication number: JPH04797U
Application number: JP3919990U
Authority: JP
Priority date: 1990-04-12
Filing date: 1990-04-12
Publication date: 1992-01-07

Description

[Brief explanation of drawings]

第１図は従来の構造を示す組立て部分断面図、
第２図は本考案の第１の実施例を示す組立て縦断
面図、第３図は本考案の第２の実施例を示す組立
て縦断面図、第４図Ａ，Ｂは第３図のキヤツプの
底面図とベースの平面図である。１……ベース基板、２……ケース、３……プリ
ント配線板、４……回路素子、５……端子ピン、
１１……ベース、１２……キヤツプ、１３，１７
……回路素子、１４，１８……配線導体、１５…
…端子パツド、１６……電磁シールド導体面、１
９……凸部、２０……溝。 Figure 1 is an assembled partial sectional view showing the conventional structure;
Fig. 2 is an assembled longitudinal sectional view showing the first embodiment of the present invention, Fig. 3 is an assembled longitudinal sectional view showing the second embodiment of the invention, and Figs. 4 A and B are the caps of Fig. 3. FIG. 2 is a bottom view and a plan view of the base. 1... Base board, 2... Case, 3... Printed wiring board, 4... Circuit element, 5... Terminal pin,
11...Base, 12...Cap, 13,17
...Circuit element, 14, 18...Wiring conductor, 15...
...Terminal pad, 16...Electromagnetic shield conductor surface, 1
9...Protrusion, 20...Groove.

Claims

[Claims for Utility Model Registration] A flat plate-like base made of resin having a continuous groove surrounding an electronic circuit portion that is to be airtightly housed on the top surface, and an opening at the bottom of the base. The base is made of resin and has a continuous convex portion that fits into the groove of the base, and is formed so that the internal airtightness is maintained when the convex portion is fitted into the groove of the base and bonded. The base is provided with a wiring conductor formed in the inner part of the groove on the upper surface and a circuit element mounted at a predetermined position of the wiring conductor, and the wiring conductor is provided in the outer part of the groove. A terminal pad connected to the wiring conductor on the upper surface by through-hole plating is provided on the back surface, and the cap is provided with a terminal pad connected to the entire surface and the outer side of the convex portion on the lower end surface of the opening. is provided with a conductor surface for electromagnetic shielding, and the inner surface and the inner part of the convex part on the lower end surface of the opening are insulated by the conductor surface of the outer part and the convex part. a wiring conductor and a circuit element mounted at a predetermined position of the wiring conductor, and when the convex part of the cap is fitted and bonded to the groove of the base, the groove and the convex part are connected to each other. An electronic circuit module configured so that the wiring conductors on the inner and outer parts are connected and the interior is kept airtight.