标题: PC电源侧面网状风孔要求 [打印本页] 作者: 八戒 时间: 2017-5-6 15:41 标题: PC电源侧面网状风孔要求 - d$ R1 l0 O' E ]
据IEC60950 4.6.1对侧面开孔的要求，说是需要设计成百叶窗之类的结构，来防止外来物的进入， 5 `* k4 b& ]/ c! H5 v3 c % i% G, p, ~! B但现在的PC电源网状出风散热孔都垂直的，为什么也可以符合要求呢？求各位大神指点 $ T' }% _" [, _( U作者: Nezof 时间: 2017-5-6 16:30
垂直有尺寸要求的吧作者: qiclaire 时间: 2017-5-9 10:10
4.6.1顶部与侧面开孔有5条要求是或的关系，如果不满足百叶窗，可以按照5mm开孔或者5°投影来判定作者: xcc2014 时间: 2017-5-10 11:40
是不是PC电源是内装的，开孔的问题应该有外部外壳保证作者: 45550629 时间: 2017-9-21 17:59
垂直的开孔尺寸符合标准要求也是可以接受的作者: zuo 时间: 2017-9-22 09:29
Compliance is checked by inspection and measurement. Except for that portion of the side of 8 j- r \0 H Ga FIRE ENCLOSURE that is subject to the requirements of 4.6.2 (see above paragraph), any one ; M5 b& i3 X8 w2 dof the following is considered to satisfy the requirements (other constructions are not8 S& |* d. ^: p7 c/ J: J
excluded):9 r! O+ S! V1 Y ?* y5 X1 {" B
− openings that do not exceed 5 mm in any dimension;, U7 e! |8 |* d
− openings that do not exceed 1 mm in width regardless of length; ! Y( [1 r8 j# C: H) y− top openings in which vertical entry is prevented (see Figure 4B for examples); 8 V8 p7 E* f+ o* c# K6 i8 f( `3 v− side openings provided with louvres that are shaped to deflect outwards an external4 r" l/ P3 L& N. _
vertically falling object (see Figure 4C for examples); 7 R& Q3 J% z7 d# D5 U− top or side openings, as shown in Figure 4D, that are not located vertically, or within a" g4 j6 i: P% U
volume V bounded by a 5° vertical projection up to the size of opening L, above bare/ \- H1 y1 E# c
conductive parts: 5 M/ ~2 @: u8 A) o: m• at HAZARDOUS VOLTAGE, or 6 o6 _9 C( M5 |, u• that present an energy hazard within the meaning of 2.1.1.5.2 i& Q# m* \' l7 W
# w2 f, l) `7 t3 }1 q* D
画重点： 7 @- {, r, _5 @any one 1 C R3 J0 R2 M' Sof the following is considered to satisfy the requirements (other constructions are not $ O* N6 B5 t4 P. q0 u# |excluded)