JPH0242293U

JPH0242293U -

Info

Publication number: JPH0242293U
Application number: JP11889388U
Authority: JP
Priority date: 1988-09-12
Filing date: 1988-09-12
Publication date: 1990-03-23

Description

[Brief explanation of drawings]

第１図は本考案の一本実施例を示すダクトの一
部破断斜視図、第２図は本実施例のダクトを備え
た電子機器筐体の内部構造図、第３図は空気の流
れを説明するダクトの水平断面図、第４図は第３
図のＡ―Ａ線断面図、第５図は第３図のＢ―Ｂ線
断面図、第６図は従来例の電子機器筐体の内部構
造図、第７図は従来の空気の流れを説明するダク
トの側断面図である。１……筐体、２……外気取込口、３……排出口
、５……基板ユニツト、７……デイスクユニツト
、９……基板用冷却フアン、１０……デイスク用
冷却フアン、１２……基板用吸入口、１３……デ
イスク用吸入口、１４……ダクト、１４ａ……開
口面、１７……高速空気流通路、１８……絞り込
みガイド、１９……消音室、２０……仕切り板、
２１……吸音材、２２……通気口。 Fig. 1 is a partially cutaway perspective view of a duct showing one embodiment of the present invention, Fig. 2 is an internal structural diagram of an electronic device housing equipped with the duct of this embodiment, and Fig. 3 shows the flow of air. A horizontal cross-sectional view of the duct to be explained, Figure 4 is the third
5 is a sectional view taken along line BB in FIG. 3, FIG. 6 is an internal structural diagram of a conventional electronic device case, and FIG. It is a side sectional view of the duct explained. DESCRIPTION OF SYMBOLS 1... Housing, 2... Outside air intake port, 3... Exhaust port, 5... Board unit, 7... Disk unit, 9... Cooling fan for board, 10... Cooling fan for disk, 12... ...Substrate inlet, 13...Disk inlet, 14...Duct, 14a...Opening surface, 17...High-speed air flow path, 18...Filtering guide, 19...Muffling chamber, 20...Partition plate ,
21...Sound absorbing material, 22...Vent.

Claims

[Scope of Utility Model Registration Claim] Heat is applied to the outside air intake side of an electronic device housing that has an outside air intake port for taking outside air into the housing and an exhaust port for discharging the air inside the housing. A first unit that generates heat and noise and a second unit that generates heat and noise are installed on the discharge port side, a first cooling fan is installed on the top surface of the first unit, and a second unit is installed on the top surface of the first unit. A second cooling fan is provided on the lower surface, and an outlet is provided on the upper surface of the second unit through which the air in the unit sent by the second cooling fan flows out, and is opposite to the first fan. a first intake port for
A box-shaped duct having a second suction port opposite to the outflow port of the second unit on the bottom surface and an opening surface facing the discharge port of the case is disposed within the casing. In the cooling structure for an electronic device case, the hot air generated from each unit is discharged from an outlet of the case through a duct by a cooling fan to cool the inside of the case, The upper part of the mouth is divided into upper and lower parts by a partition plate, and the lower side of this partitioned part is further divided into a central part having the second duct and both side parts,
These both sides are defined as high-speed air flow passages, and a narrowing guide is formed at the end of the high-speed air flow passage on the first suction port side to narrow the hot air from the first suction port so that it becomes a high-speed air flow. and the front and rear parts of the central part are partitioned by a partition plate to be shielded from other parts of the duct, and the inner peripheral surface of the partition plate is covered with a sound absorbing material to form a sound-absorbing chamber, and the sound-absorbing chamber and the above-mentioned A soundproofing/cooling structure for an electronic device case characterized by having a vent in the partition plate from the high-speed airflow path.