Equipment and related method for continuously charging electret diaphragm
A technology of charging equipment and standing electricity, which is applied to electret electrostatic transducers and other directions, and can solve the problems of inability to distribute electricity, affecting the sound quality of electric horns, and uneven distribution of electric diaphragms.
Inactive Publication Date: 2010-06-09
HTC CORP
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Problems solved by technology
However, when the area of the static diaphragm is large, this method cannot evenly distribute the charge to the surface of the static diaphragm, and it takes a lot of time to distribute the charge to the static diaphragm.
In addition, the temperature and humidity in the air will also affect the effect of power distribution, resulting in uneven power distribution of the static diaphragm, which in turn affects the sound quality of the static speaker
Method used
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[0034] Please refer to figure 1 , figure 1 It is a schematic diagram of the first embodiment of the continuous charging device 100 of the present invention. Such as figure 1 As shown, the charging device 100 includes (but not limited to) a discharge tool 160 and a power supply 140 , and the discharge tool 160 includes a substrate 110 , a plurality of discharge needles 120 , and a conductive plate 130 . A plurality of discharge needles 120 are arranged on the substrate 110, and the included angle between each discharge needle 120 and the substrate is 90 degrees, wherein each discharge needle 120 is separated from the adjacent discharge needle 120 by a first specific distance d1, and more Only the discharge needles 120 are arranged in a matrix on the substrate 110 and connected to each other through connecting wires 150 . The conductive plate 130 is parallel to the substrate 110 and has a second specific distance d2 from the tip 125 of each discharge needle 120 . The power s...
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Equipment for continuous charging comprises a discharge device and a power supply. The discharge device comprises a base plate and a conducting plate. The base plate is provided with a plurality of discharge needles which are arranged into a rectangle. First distance exists between each discharge needle and the adjacent discharge needle. Second distance exists between the conducting plate and the sharp end of each discharge needle. The power supply respectively provides first voltage to the discharge needles and second voltage to the conducting plate. The discharge device is used for charging an electret diaphragm of an electret speaker. The conducting plate is a conveyer belt made of metal and is used for conveying the electret diaphragm to the charge area of the discharge device to continuously charge the electret diaphragm.
Description
technical field [0001] The present invention relates to a charging device and a related method for continuously charging the static diaphragm of a capacitive electroacoustic transducer, especially a method of using arc distribution (corona charge) and continuous delivery to charge the static Device and method for continuous charging of diaphragm. Background technique [0002] Due to the increasing popularity of multimedia applications at present, portable music players or portable devices with music playback functions can be seen almost everywhere. One of the elements to consider. [0003] For a capacitive speaker (such as an electrified speaker), the sound quality depends on whether the surface potential of the electret diaphragm (electret diaphragm) is consistent. The current practice is to apply a high voltage to a single discharge needle, and the electric field strength around the discharge needle will increase so that the air in the electric field will start to dissoc...
Claims
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Inventor 李芳庆
Owner HTC CORP