JPH0242494U - - Google Patents
Info
- Publication number
- JPH0242494U JPH0242494U JP12258988U JP12258988U JPH0242494U JP H0242494 U JPH0242494 U JP H0242494U JP 12258988 U JP12258988 U JP 12258988U JP 12258988 U JP12258988 U JP 12258988U JP H0242494 U JPH0242494 U JP H0242494U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust duct
- exhaust
- absorbing material
- glass wool
- porous sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011358 absorbing material Substances 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 1
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
第１図は本考案の一実施例を示す電子機器の外
観斜視図、第２図は第１図の縦断面図、第３図は
排気ダクト部の詳細断面図、第４図は従来の電子
機器の外観斜視図、第５図は第４図の縦断面図で
ある。
１：筐体、２：排気口、３：排気ダクト、５：
ユニツト、６：架枠、７：送風機、８：空洞共鳴
室、９，１０：多孔質吸音材。
Fig. 1 is an external perspective view of an electronic device showing an embodiment of the present invention, Fig. 2 is a vertical sectional view of Fig. 1, Fig. 3 is a detailed sectional view of an exhaust duct, and Fig. 4 is a conventional electronic device. FIG. 5 is a perspective view of the external appearance of the device, and FIG. 5 is a vertical cross-sectional view of FIG. 4. 1: Housing, 2: Exhaust port, 3: Exhaust duct, 5:
Unit, 6: frame, 7: blower, 8: cavity resonance chamber, 9, 10: porous sound absorbing material.
Claims (1)
ニツトの空冷用送風機の風の吐き出し側に設けら
れた排気ダクトと該排気ダクトと貫通穴を介し連
通する少なくとも１つ以上の空洞共鳴室とを有し
た電子機器の防音構造において、 上記排気ダクトは、Ｌ字型に屈曲した排気路を
形成してなると共に、その内壁にグラスウール等
の多孔質吸音材を備え、 上記空洞共鳴室は、発生騒音の減衰を行う特定
周波数帯に共鳴周波数を合致させると共に、その
内部にグラスウール等の多孔質吸音材を充填した
ことを特徴とする電子機器の防音構造。[Claims for Utility Model Registration] An exhaust duct provided on the air outlet side of an air-cooling blower of a unit having an electronic circuit package mounted in a rack, and at least one or more exhaust ducts communicating with the exhaust duct via a through hole. In the soundproofing structure of an electronic device having a cavity resonance chamber, the exhaust duct has an L-shaped bent exhaust passage, and its inner wall is provided with a porous sound-absorbing material such as glass wool. A soundproof structure for electronic equipment, characterized in that the chamber has a resonant frequency that matches a specific frequency band for attenuating generated noise, and is filled with a porous sound-absorbing material such as glass wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12258988U JPH0242494U (en) | 1988-09-19 | 1988-09-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12258988U JPH0242494U (en) | 1988-09-19 | 1988-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0242494U true JPH0242494U (en) | 1990-03-23 |
Family
ID=31370661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12258988U Pending JPH0242494U (en) | 1988-09-19 | 1988-09-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0242494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012064685A (en) * | 2010-09-15 | 2012-03-29 | Toshiba Corp | Housing unit for electronic apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717197A (en) * | 1980-07-04 | 1982-01-28 | Mitsubishi Electric Corp | Electric device housing |
| JPS57181200A (en) * | 1981-03-27 | 1982-11-08 | Tokyo Shibaura Electric Co | Housing for computer |
| JPS5822770B1 (en) * | 1975-10-13 | 1983-05-11 | Casio Computer Co Ltd |
-
1988
- 1988-09-19 JP JP12258988U patent/JPH0242494U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822770B1 (en) * | 1975-10-13 | 1983-05-11 | Casio Computer Co Ltd | |
| JPS5717197A (en) * | 1980-07-04 | 1982-01-28 | Mitsubishi Electric Corp | Electric device housing |
| JPS57181200A (en) * | 1981-03-27 | 1982-11-08 | Tokyo Shibaura Electric Co | Housing for computer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012064685A (en) * | 2010-09-15 | 2012-03-29 | Toshiba Corp | Housing unit for electronic apparatus |
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