METHOD FOR FASTENING A SPEAKER TO A SPEAKER CHAMBER AND SPEAKER CHAMBER

摘要

A method for fastening a speaker to a speaker chamber, and a speaker chamber with a speaker. The speaker (530) is placed in a speaker frame (513) belonging to the frame part (511, 513) of a speaker chamber. Laser welding is used in the fastening. Therefore, the speaker is implemented with plastic jacket (532) absorbing the energy of a laser beam, and the frame part is of plastic material, which is permeated by the laser beam without hardly any energy loss. The laser beam is directed at the junction (JNC) between said plastic jacket and the frame part. In this case, the material of the plastic jacket (532) heats up at the junction, and some thermal energy also transfers over the junction to the frame part (513). The melting temperatures of these two plastic materials are close to each other, and therefore, when a suitable power level is used, the materials melt on both sides of the junction and become mixed with each other. The joint is created by moving a laser beam of a certain width along the junction (JNC). The speaker will be fastened tightly to the frame part of the speaker chamber without causing mechanical stress on the speaker and the nearby components. No intermediate material to be placed between the speaker and the frame part is needed.