With the continuous development of social economy, antiaircraft speakers, loudspeakers, loudspeakers and other speaker products in our production and life of the rapid spread in the use of the product, some careful user development, the speaker in use for some time, sometimes appear abnormal sound, which is what causes? How should we prevent it?
Reason 1: The center of plastic parts unglued, as a result of high temperature, power is too large, causing the production process and other reasons.
Precautions:
a center with a suitable adhesive according to the speaker's rated power.
b make it work within a variety of experiments for speaker, or when listening to the rated power, a predetermined frequency range.
center c-component glue it according to a predetermined ratio were mixed, to put the diaphragm in the glue operational time.
d dial tone before compliance check whether the central glue is completely dry, so as not to blindly pull sound regulation and destruction caused by the offset coil center adhesive curing structure.
e Check whether the central glue broken plastic, lack of glue.
Reason 2: The coil deformation.
Precautions:
To verify that production before a good voice coil bobbin without deformation.
b Note whether the voice coil surface blistering stickers, sticky is firmly, whether the roll surface, in order to avoid thermal expansion stickers and washer to create friction produce different sounds.
c selection of high-temperature voice coil bobbin.
d sets of sound regulation when first check whether the glue on sound regulation.
Reason 3: The coil casual line.
Precautions:
a pre-production to check whether the loose coil wire, jumper, Wound whether compact.
b allow the speaker to work within the rated power range.
Self-adhesive force is not enough c voice coil wire, not high temperature, good self-adhesive coil wire coil should stick more tightly at the rated temperature.
Reason 4: Tail rolled coil, the coil grazing to large amplitude T iron or washer.
Precautions:
a set of regulations to check the sound of the voice coil when the tail is deformed.
b case of a voice coil positioned too low, the coil center and washers Juanmian high center transferred to the same plane.
c case of compliant material or loss of elasticity caused by aging, replacement of parts.
d sound regulation outer diameter is too small, the decline in the production of the voice coil loose, T iron speaker hit bottom in vibration.