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An improved receiver

An improved technology for receivers, applied in the field of receivers, can solve the problems of increased processing difficulty, high processing precision requirements, complex molds, etc., and achieve the effects of easy assembly, reduced assembly height, processing cost and processing difficulty

Active Publication Date: 2017-11-03
SUZHOU YICHUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In stamping, the molds involved are also more complicated. Because the volume of the iron core itself is small, the processing accuracy requirements are relatively high, and the processing difficulty is increased.
At the same time, during assembly, the closed cavity of the iron core also brings difficulties to the assembly of the armature and permanent magnet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An improved receiver, including an electromagnetic shielding shell, a sounding unit and an electromagnetic driving unit arranged in the electromagnetic shielding shell, and the electromagnetic driving unit transmits vibration to the sounding unit through a conducting rod; Figure 1-2 As shown, the electromagnetic drive unit includes an armature 4 and an iron core 7. The armature 4 is a bent and formed U-shaped strip plate. The two ends of the U-shaped armature are respectively a vibrating part 41 and a fixed part 42. It is connected with the fixing part 42 through the bending part 43; the iron core 7 is a U-shaped frame formed by bending, and the fixing part 42 of the armature 4 is arranged at the opening end of the U-shaped frame and forms a closed cavity with the U-shaped frame. The vibrating part 41 of the armature 4 passes through the cavity along its own axial direction and partially protrudes from the cavity, such as image 3 As shown, the electromagnetic drive un...

Embodiment 2

[0030] The rest is the same as that of Embodiment 1, except that the two ends of the U-shaped frame are provided with extension parts 71 for fixed connection with the fixing part 42 , and the fixing part 42 is connected with the extension part 71 by riveting.

[0031] Such as Figure 4 As shown, the part of the vibrating part 41 protruding from the cavity is provided with a through hole for connecting the conducting rod 2 , and the conducting rod 2 is passed through the through hole.

[0032] The conducting rod 2 passes through the through hole and is bent to form a hook 21 for fixed connection with the vibrating part 41 to improve the reliability of the connection between the conducting rod 2 and the vibrating part 41 .

Embodiment 3

[0034] The rest is the same as that of Embodiment 2, except that the two ends of the U-shaped frame are provided with extension parts 71 for fixed connection with the fixing part 42 , and the fixing part 42 is bonded to the extension part 71 .

[0035] Such as Figure 5 As shown, the end of the conductive rod 2 for connecting the diaphragm 3 is provided with a bent surface 22 , and the bent surface 22 is bonded to the diaphragm 3 . When the conduction rod 2 and the diaphragm 3 are fixedly connected, it is only necessary to apply glue on the bending surface, and directly bond the diaphragm to the conduction rod, which avoids the need to insert the conduction rod into the installation hole on the diaphragm in the past. The problem of difficult assembly.

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Abstract

Provided is an improved receiver which comprises an electromagnetic shielding casing, a sounding unit, and an electromagnetic driving unit. The electromagnetic driving unit comprises an armature and an iron core. The armature is formed by bending and in a U shape and comprises a vibrating portion and a fixed portion which are disposed on the two ends of the U-shaped armature. The vibrating portion and the fixed portion are connected via a bent portion. The iron core is a U-shaped frame formed by bending. The fixed portion is arranged at the opening end of the U-shaped frame and forms an enclosed cavity with the U-shaped frame. The vibrating portion passes through the cavity along an axial direction and is partially extended out of the cavity. The electromagnetic driving unit also comprises a coil and permanent magnets. The coil is sleeved on the vibrating portion and is connected with the iron core. The permanent magnets are arranged symmetrically on the top side and the bottom side of the vibrating portion and respectively fixed on the inner sides of the fixed portion and the iron core. The improved receiver decreases the processing cost of the iron cost and enables the receiver to be easy to assemble.

Description

technical field [0001] The invention relates to a receiver, in particular to an improved receiver. Background technique [0002] In the structure of the moving iron unit, especially in the receiver, the iron core is a very important part, and its main function is to install magnets to form a magnetic circuit. The structure of the iron core is basically a hollow cylinder, and the magnet is installed on its inner ring. [0003] At present, the iron core adopts the "back" structure, and the armature is installed in the inner cavity of the "back" structure. For the processing and forming method of the iron core, the current processing method is basically through die-casting, stamping or drawing. Formed in one go. During stamping, the molds involved are also more complicated. Since the volume of the iron core itself is small, the requirements for machining accuracy are higher, and the machining difficulty is increased. At the same time, during assembly, the closed cavity of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/10
Inventor 周巍
Owner SUZHOU YICHUAN TECH CO LTD
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