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The definition of reliability and application scope of the Marine loudspeaker defines the definition of speaker reliability as "the ability of the speaker product to complete the specified function within the specified conditions and time specified." "It is a time quality indicator for the speaker product, used to describe the situation of speakers in a fragile and reliable process." Navy spokesman with the increase of the needs of users, the speaker is becoming more and more complicated structure (e.g., car speaker), the output power is more and more big, such as PA speaker), use more and more harsh environment, such as outdoor speakers, speakers will lead to a reliable product levels drop. At the same time, the use of new materials, new technologies, or new technologies will increase the number of speakers that are unreliable.
The "definition condition" in the reliability definition determines a wide range of reliability, and the reliability of the product has a lot to do with the working conditions, conditions of use and environmental conditions of storage and transportation. Conditions can be divided into two categories: the use condition and the surrounding environment. Conditions of use refer to the internal conditions of the product under pressure, including various electronic stresses, chemical stresses and physical stresses of the ocean speakers. Environmental conditions include temperature, humidity, air pressure, harmful gases, mould, salt fog, shock, vibration and radiation, and other environmental pressure conditions. In this sense, environmental testing is also part of the reliability test category. These stress conditions can be applied separately and can be used in combination. The impact of integrated application on the reliability of the loudspeaker will be more obvious.
Is the purpose of design is deduced in order to make the reliability of the loudspeaker has a large effect on the reliability of the loudspeaker, able to bear the stress of lower than conventional design level, to reduce the failure rate of basic. In the design of loudspeaker system, the design and application of Marine loudspeaker is more common. In the design of the speaker unit, a larger range of film positioning, larger sound coil diameter, lead and lead plastic design reflect the design concept.
As the operating temperature increases, the failure rate of the speaker increases and the working temperature is reduced to reduce the failure rate. The thermal conduction mechanism of loudspeaker was analyzed theoretically and discussed. The main reason for the heating of the loudspeaker is that the working temperature of the speaker can reduce the heat of the sound coil and improve the heat of the sound coil and magnetic path. The heat of the speaker is: (1) through the core, the ocean speaker positioning piece, the basin rack, the paper cone, the sound coil skeleton design through the larva L to form the cooling channel. Also be careful to prevent design noise. (2) the use of magnetic fluid enhances the cooling capacity of the voice coil. This method cannot be used in conjunction with method (1). (3) use of black devices to improve thermal radiation and thermal conductivity of devices. (4) in the case of cost, add heat. (5) for loudspeakers with extremely high power and continuous use, oil cooling or water-cooling techniques may be required to improve reliability. (6) to improve the heat resistance of materials and adhesives. Many loudspeaker designers instinctively use this approach when encountering problems, but only to improve the heat resistance of materials and adhesion
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- Antenna Directivity Enhancement
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- Antenna Beam Width
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