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现在有一个无线鼠标是锂电池供电的，这个锂电池已经有UL2054的认可，0 }2 m5 r( `. D9 f% }1 ~% ~' _% x
1）那我们在做这个无线鼠标的时候是不是就不用再做锂电池的相关测试了？是否可以认为这个电池已经符合LPS的要求？; r. o! p! z: X2 n! f/ e
2）是不是可以根据标准里4.7.2.1 Parts requiring a fire enclosure
8 U [ b0 v, f3 C! W. o− components within a power supply unit or assembly having a limited power output as
2 [( q# Z |( |specified in 2.5, including overcurrent protective devices, limiting impedances, regulating
; Z: H# }( ~3 g ~networks and wiring, up to the point where the limited power source output criteria are( a4 v! z6 V- X O- e
met;9 F$ I1 H: c- ~- d/ A+ w$ s2 X
来判断给做95的产品供电的锂电池是一定需要防火外壳的(且至少要V-1)?6 v( ^2 \+ L, q1 Z2 ?, i
3）根据标准里4.7.2.2 Parts not requiring a fire enclosure: x: b' B j; _3 O/ D* k$ V
− other components in SECONDARY CIRCUITS:
. P/ V R" D( P& `• supplied by limited power sources complying with 2.5 and mounted on V-1 CLASS' B7 ]* }" e2 l c0 Z. C" @
MATERIAL;- l$ ~1 m) M; A! p( L
• supplied by internal or external power sources that are limited to a maximum of 15 VA6 X1 r; I* V+ k/ Z3 \) h% s
(see 1.4.11) under normal operating conditions and after a single fault in the equipment
7 a5 W9 B% L+ {; _3 {3 b(see 1.4.14) and mounted on HB75 CLASS MATERIA,L if the thinnest significant thickness, X$ m0 j I( P/ x+ E
of this material is < 3 mm, or HB40 CLASS MATERIAL, if the thinnest significant thickness of# U$ Z& v0 u' G$ }! l% E+ R& y2 p
this material is ≥ 3 mm;7 M0 F4 P; D0 C
如果这个锂电池本身的外壳是V-1，可不可以认为在以下两种情况下这个光电鼠标的外壳HB就可以了？
6 u6 y0 x4 {& V/ U8 O第一种：锂电池符合LPS的要求，鼠标的PCB为V-1 CLASS MATERIAL;
; ^- ~& r3 ` ~& F# m* P第二种：鼠标的PCB为HB75或者HB40 CLASS MATERIAL，锂电池的最大输出功率为15VA) h' [* G J6 B+ `
+ z, j) J) p" }. i以上几个问题都不太确定，望哪位安规高手指点一二，万分感谢。 |
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发表于 2008-12-20 00:46
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这么多高手怎么没人帮我解答一下呀