1. 簡介SCOPE 本產品適用于便攜式電腦,手機等產品
This specification covers our product of Magnetic Buzzer unit for
NB Computer, Mobile phone etc. use.
2.外觀尺寸圖 MECHANICAL LAYOUT & DIMENSIONS 見圖五 Shown in Fig.5
3.概要 GENERAL REQUIREMENTS3.1 使用溫度OPERATING TEMPERATURE RANGE:
-20℃ ~ +60℃3.2 儲存溫度Storage Temperature:
-30℃ ~ +70℃3.3 標準測試條件STANDARD TEST CONDITIONS:
溫度Temperature:
17~25℃ 濕度Relative Humidity:
45%~80%(RH) 大氣壓力Air Pressure:
860~1060 MPa3.4 仲裁測試條件JUDGEMENT CONDITIONS:
溫度Temperature:
20±2℃ 濕度Relative Humidity:
60%~70%(RH) 大氣壓力Air Pressure:
860~1060 MPa4. 揚聲器規格 SPEAK ELECTRICAL AND ACOUSTICAL SPECIFICATION4.1 聲壓級 Sound Press Level(SPL):
93±3 dB SPL /1.0W/10CM at 2000Hz
4.2 阻抗 IMPEDANCE:
8±15% ? 4.3 頻響曲線FREQUENCY RESPONSE CURVE:
As shown in fig(2) 4.4 諧振頻率RESONANCE FREQUENCY:
700±20%Hz in free air
4.5 額定功率 Rated Power:
1.0W in 1CC box4.6 最大功率Max. Power:
1.5W must be normal white noise (1.5W) for 1 minute in 1.0cc box
4.7 諧波失真DISTORTION :
10% max. 2kHz (Mounted in 1cc measure box and in a baffle) Test at 1W/10cm fig(3)
4.8 純音檢聽AUDIBLE NOISE:
2.0V Must be free audible noise 300Hz 10KHz; 2.0Vrms, while testing in 1cc box.
4.9 極性POLARITY: Right side is the “+”,As show in the picture
4.10 重量Weight:Approx.
2.0g■測試方法圖MEASURING CIRCUIT (Fig.1)
Fig.1 measuring diagram■頻率響應曲線圖TYPICAL FREQUENCY RESPONSE CURVE (Fig.2)
Fig.2 Typical frequency response curve■失真曲線圖SPEAKER DISTORTION CURVE(fig.3)
Fig.3 Typical distornition frequency response curve5. 可靠性測試 RELIABILITY TESTS
揚聲器進行下列測試后SPL變化不允許超出±5dB,不允許有任何機械或者熱損傷。
The sound pressure as specified shall neither deviate more than ±5dB from the initial value, nor any significant damage after any of following testing.
5.1 高溫試驗 HIGH TEMPERATURE TEST
High temperature: +70±2℃
Duration: 16 hours
5.2 低溫試驗LOW TEMPERATURE TEST
Low temperature : -30±2℃
Duration: 16 hours
5.3 冷熱沖擊試驗HEAT SHOCK TEST
High temperature: +70±2℃
Low temperature: -30±2℃
Changeover time: < 30 seconds
Duration: 1 hour
Cycle: 5
5.4 高溫高濕試驗HUMIDITY TEST
Temperature: +40±2℃
Relative humidity: 90~95%
Duration: 16 hours
5.5 高低溫循環試驗TEMPERATURE CYCLE TEST
Temperature: -30℃ +20℃ +70℃
Duration: 30 minutes 15 minutes 30 minutes
Temperature gradient: 1~3℃/min.
Cycle: 5
5.6 跌落試驗DROP TEST
Free drop a unit to the surface of 10mm thick board
Height: 100cm
Cycle: 6 (1 each plain) onto the concrete board
5.7 可靠性試驗Load test
White Noise.:
20~20kHz Rated Power:
1.0W 96Hours in 1cc box6. 外形圖DIMENSIONS Unless otherwise specified, tolerance: ±0.5 (unit: mm)
9 | 前貼 Sponge | | | |
8 | 焊片SPRING TERMINAL | SUS | 2 | |
7 | 前蓋 FRONT CAP | PPA or PBT | 1 | |
6 | 音圈 VOICE COIL | COPPER WIRE | 1 | |
5 | 膜片 DIAPHRAGM | PEEK or PEN | 1 | |
4 | U鐵 U YOKE | SPCC | 1 | |
3 | 極片 POLE PIECE | SPCC | 1 | |
2 | 磁鋼 MAGNET | Nd | 1 | |
1 | 主架 FRAME | PPA or PBT | 1 | |
編號No. | 零件名稱PART NAME | 材料 MATERIAL | 數量Q’TY | 備注REMARK |
Fig4. Outer dimension