PC电源侧面网状风孔要求

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# K, Y/ ?7 i; G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，

, C- g! H0 K" U/ V' h. W8 \* N) [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
) b. Y! o1 r, @1 ]2 D6 j

Nezof

垂直有尺寸要求的吧

qiclaire

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

xcc2014

是不是PC电源是内装的，开孔的问题应该有外部外壳保证

45550629

垂直的开孔尺寸符合标准要求也是可以接受的

zuo

Compliance is checked by inspection and measurement. Except for that portion of the side of
a FIRE ENCLOSURE that is subject to the requirements of 4.6.2 (see above paragraph), any one
9 F/ G- W" s7 |# U( K7 e' N! ?% Uof the following is considered to satisfy the requirements (other constructions are not
9 B! R, j( E' B9 Kexcluded):
, A* B0 a# `7 o$ j3 G  b3 E− openings that do not exceed 5 mm in any dimension;
& D0 m- L. C/ u* W− openings that do not exceed 1 mm in width regardless of length;
' t2 E, t( ?$ g− top openings in which vertical entry is prevented (see Figure 4B for examples);
− side openings provided with louvres that are shaped to deflect outwards an external
$ G: G- ~2 v( J3 J  I  l2 _vertically falling object (see Figure 4C for examples);
− top or side openings, as shown in Figure 4D, that are not located vertically, or within a
! b( X8 l& i  ?4 f) fvolume V bounded by a 5° vertical projection up to the size of opening L, above bare
  k  g& Y2 P0 e; w. P  |conductive parts:
2 E! I. r9 J0 K# }! a• at HAZARDOUS VOLTAGE, or
1 V8 n; w3 }) c% Z: s9 C7 [• that present an energy hazard within the meaning of 2.1.1.5.

! Q0 z( e" c$ ]. |- @. c+ j9 x画重点：
any one
/ X* }" G4 E+ V! F& Rof the following is considered to satisfy the requirements (other constructions are not
excluded)