Telephone receiver of simple structure

Abstract

The invention discloses a telephone receiver of a simple structure. The telephone receiver of the simple structure comprises an iron box, an armature, permanent magnets, a vibrating diaphragm assembly and coils, wherein a sound making hole is formed in the side wall of the iron box, the armature is arranged on the inner side wall of the iron box, the permanent magnets are arranged on the upper side and the lower side of the armature and are connected with the inner upper wall and the inner lower wall of the iron box respectively, one end of the vibrating membrane assembly is connected with the inner upper wall of the iron box, the other end of the vibrating membrane assembly is in transmission connection with the armature, an inner cavity of the iron box is divided into a front cavity and a rear cavity by the vibrating membrane assembly and the armature, the sound making hole is formed in one side of the front cavity, and the coils are arranged in the rear cavity and are located on the inner upper wall and the inner lower wall of the iron box respectively. The telephone receiver is simple in structure; compared with a traditional telephone receiver, an iron core and a conduction rod are omitted, the structure is simper, and cost is lower. In addition, the front cavity is smaller and the rear cavity is larger, in this way, a sound quality frequency response curve is better, and the sound loudness is higher.

Description

technical field [0001] The invention relates to a receiver, in particular to a receiver with a simple structure. Background technique [0002] The receiver, also known as the earpiece, is an electroacoustic device that converts audio electrical signals into sound signals without sound leakage. It is widely used in communication terminal equipment such as mobile phones, fixed phones, and earphones to realize audio, such as voice and music. Waiting for replay. In the receiver, the conversion of the electrical signal to the sound signal is mainly completed by the internal drive device, such as figure 1 As shown, the traditional driving device mainly includes an armature, a coil, an iron core, a permanent magnet, a conductive rod, and a diaphragm. The diaphragm divides the cavity in the receiver into a front cavity and a rear cavity. The front cavity communicates with the sound outlet, and the driving device is installed in the rear cavity. Sound port output. [0003] The tr...

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Problems solved by technology

[0003] The traditional receiver has complex structure, large volume and high cost

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