Peripheral frame of electromagnetic vibrating device and production method thereof

Abstract

The invention relates to a peripheral frame of an electromagnetic vibrating device. At least four metal cooling pieces are respectively embedded at the four corners of the peripheral frame, i.e. metal and plastic materials are injection-molded through a mold embedding method. One ends of the metal cooling pieces are fixedly connected with the magnetic return system of the electromagnetic vibrating device and the other ends of the metal cooling pieces are fixed with the fixing assembly of the shell of an electronic product, such as the fixing assembly of the shell of a sound box, the fixing assembly of the shell of a television and the like, so as to ensure that heat generated during the working of the magnetic return system and a voice coil can be conducted out through the metal cooling piece. Moreover, the two ends of the metal cooling pieces are respectively provided with a fixing hole to facilitate better fixation between the magnetic return system of the electromagnetic vibrating device and the fixing assembly of the electronic product.

Description

technical field [0001] The present invention mainly relates to a peripheral frame of an electromagnetic vibrating device, in particular to a peripheral pot of an electromagnetic vibrating device that uses metal radiators installed on the four corners of the peripheral frame of the electromagnetic vibrating device to dissipate heat from the magnetic return system Frames and methods of making them. Background technique [0002] As we all know, the most common electromagnetic vibration device is the electromagnetic vibration device, and the electromagnetic vibration device is commonly known as "horn", which is an electroacoustic device that converts electrical energy into sound energy. At the same time, in the process of converting electrical energy into sound energy, the voice coil and the magnetic return system play a leading role. According to Fleming's law, when the current passes through the coil, the coil will move in the magnetic field, such as when an alternating curren...

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Problems solved by technology

[0003] However, when the coil is energized to generate motion, the coil gradually heats up due to the internal resistance of the copper or aluminum wire when the current flows through the coil. After a long time, the heat accumulates into high heat, and eventually the coil may burn out.

If the heat dissipation is not good, it will even cause the entire electromagnetic vibration device to be burned and scrapped

At present, the pot frames used in the electromagnetic vibration devices on the market are generally made of plastic, cast aluminum or stamped iron parts, and the plastic material does not have the characteristics of heat conduction, and the heat dissipation effect is not good; at the same time, the pot frame It still needs to have the function of supporting and fixing the weight of the whole vibrating device. When the electromagnetic vibrating device is working, it must move back and forth or vibrate continuously. It has good heat dissipation performance, but the cost is high; the iron basin frame is low in cost, but it needs to be stamped and formed, and its appearance and thickness are limited, which cannot be compared with plastic and cast aluminum

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