CN2257982Y

CN2257982Y - Microphone receiver

Info

Publication number: CN2257982Y
Application number: CN 96215583
Authority: CN
Inventors: 李万成
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-07-15
Filing date: 1996-07-15
Publication date: 1997-07-16
Anticipated expiration: 2006-07-15

Abstract

The utility model relates to a microphone receiver, which mainly comprises a circular plastic film whose center is accompanied with a cylindrical copper coil, an iron gasket sheet, an alnico hollow cylindrical magnet pillar, an iron goblet body and a plastic outer sleeve body. The center of the bottom of the iron goblet body is provided with a circular hole; the center of the bottom of the plastic outer sleeve body is upward extended with a circular tube. A corresponding through hole and a corresponding air hole are arranged on the side walls of the goblet body and the plastic outer sleeve body. The magnet pillar is sheathed in the goblet body which is sheathed in a plastic outer housing. Annular space which is used as a gas chamber is arranged between the inner wall of the goblet body and the outer wall of the magnet pillar; the top edge of the goblet body is tightly connected with the bottom surface of the gasket sheet; the circular plastic film is positioned on the gasket sheet. The utility model can improve sound quality and is favorable for quick production.

Description

The microphone receiver

The utility model relates to a kind of microphone receiver, has the advantages that to improve tonequality, be fit to quick production.

Mainly be equiped with receiver in the microphone casing body, voice signal be transformed into the signal of telecommunication send loudspeaker to.Traditional microphone receiver mainly comprises garden plastic film, a washer plate washer, a magnet circle, a T iron and the plastic wrapper body of central authorities with copper coil, as shown in Fig. 1, Fig. 2.The microphone that is assembled into by this kind structure receiver belongs to universal articles for use, and its price and tonequality can be common people and accepts, but concerning the music lover, its acoustic mass then can not satisfy the requirement of their music appreciating.Tonequality is the important indicator of sound appliances quality, and the society and the common people also need the microphone receiver of high tone quality.

The purpose of this utility model is a kind of microphone receiver of design, has high-quality tonequality and is suitable for the quick manufacturing.

Microphone receiver of the present utility model comprises garden plastic film, magnet and the plastic wrapper body of central authorities with copper coil, it is characterized in that:

Described copper coil is the garden tubular; Also include the irony washer plate, be positioned at plastic film below, described garden; Described magnet is alnico alloy hollow garden cylindrical magnetic iron post, and magnetic column end face and described washer plate end face trim, the interior intermarginal annular space that has of magnetic column top outer rim and washer plate, and described garden tubular copper coil is contained in this annular space; Also comprise an irony cup shell, the cup shell bottom center is provided with the hole, garden, the garden hole dia equals described magnetic column inner edge diameter, the cup shell sidewall is provided with symmetrical through hole, the cup shell upper limb is right after the washer plate bottom surface, the cup shell external diameter equals the washer plate external diameter, and described magnetic column is contained in the cup shell, between cup shell inwall and magnetic column outer wall the ring-type air chamber is arranged; Described plastic wrapper body bottom center extends upward a pipe, and the end face of pipe and bottom surface are empty thoroughly, and described magnetic column closely is sleeved on outside the pipe of garden, the plastic wrapper body sidewall be provided with described cup shell on the corresponding air vent hole of through hole.

Be pasted with tuning cloth on the air vent hole of described plastic wrapper body, be pasted with adjustable sound paper on the pipe bottom surface of described plastic wrapper body bottom.

When single injection-molded plastic wrapper body, washer plate, magnetic column can be encased or fix, one is combined to form, and then the garden is moulded the material diaphragm and is bonded on the apical margin of plastic wrapper body, promptly finishes the assembling of whole receiver.

Further specify technology of the present utility model below in conjunction with the embodiment accompanying drawing

Fig. 1. traditional structure microphone receiver perspective exploded view

Fig. 2. another traditional structure microphone receiver perspective exploded view

The microphone receiver combining structure vertical cross section of Fig. 3, Fig. 2

Fig. 4. the utility model improves the microphone receiver perspective exploded view after the tonequality

The microphone receiver combining structure vertical cross section of Fig. 5, Fig. 4

(Fig. 2, Fig. 3 receiver are the improvement to Fig. 1 structure receiver to Fig. 1 to Fig. 3, see Chinese patent 93232910.1 for details) shown in the microphone receiver, form with garden plastic film 1a, washer plate washer 1b, magnet circle 1c, T sections 1d and the plastic wrapper body 1e of copper coil by central authorities.Wherein magnet circle 1c is general carbonization silicon magnet, and the gap 1f between magnet circle 1c inboard and T sections 1d is quite little as can be seen from Figure 3.

Referring to Fig. 4, Fig. 5, after the improvement the microphone receiver mainly comprise: central authorities are with the garden plastic film 2 of copper coil, and identical with the diaphragm 1a of traditional structure, copper coil 21 is the garden tubular; Washer plate 3 be positioned at garden plastic film 2 below, be the irony packing ring; One magnetic column 4, be hollow cylinder, be alnico alloy magnet, the end face of its end face and washer plate 3 trims, but the interior intermarginal annular space that leaves of the top outer rim of magnetic column 4 and washer plate 3 is to hold copper coil 21, when circular film 2 was subjected to acoustical vibration, copper coil 21 can move up and down and induced current between this annular space; One cup shell 5, make with the iron topping material, bottom center is provided with hole, garden 51, the diameter in hole, garden 51 equals the inner edge diameter of magnetic column 4, be arranged with four through holes 52 on the sidewall of cup shell 5, cup shell 5 upper limbs are right after the bottom surface of washer plate 3, and the external diameter of cup shell 5 approximates the external diameter of washer plate 3, hold magnetic column 4 in the cup shell 5, have annulus to exist between the outer wall of the inwall of cup shell 5 and magnetic column 4 as air chamber 45; One plastic wrapper body 6, its bottom center extends upward

garden pipe

61,61 end faces are managed in the garden and the bottom surface is all saturating empty, the external diameter of garden pipe 61 is approximately equal to the inner edge diameter of magnetic column 4, both phase driving fits, the sidewall of plastic wrapper body 6 is provided with the air vent hole 62 relative with the through hole 52 of cup shell 5, plastic wrapper body 6 with its in garden manage 61 single injection-moldeds.

Washer plate 3, magnetic column 4 and cup shell 5 are encased or fix when the single injection-molded plastic wrapper body 6 by mould, be stained with the garden at the apical margin of plastic wrapper body 6 then and mould material diaphragm 2.Finished product microphone receiver as shown in Figure 5, stick tuning cloth (not shown) in air vent hole 62 places of plastic wrapper body 6 again, be to stick the adjustable sound paper (not shown) on the bottom surface of garden pipe 61 in the bottom of plastic wrapper body 6, can adjust tonequality, connecting lead and assembling shell promptly becomes microphone.

Magnetic column 4 in the utility model structure is an alnico alloy magnet, its magnetic or claim magnetism intensity used carbonization silicon magnet in the traditional structure, and it is cheap, tonequality can also be improved, but also improvement purpose can not be reached as if the carbonization silicon magnet circle of simply replacing traditional structure with alnico alloy magnet.

The air chamber 45 that magnetic column 4 among Fig. 5 and cup shell are 5 is more many greatly than gap 1f shown in Figure 3, because the enhancing of magnetic force and the increasing of air chamber make the receiver that improves structure improve acoustical quality.In addition, when single injection-molded plastic wrapper 6, get final product the combination forming receiver one time, needn't resemble and make plastic wrapper body 1e earlier the traditional structure, and then assemble other assemblies, thereby more can make the receiver stay in grade and be beneficial to quick production.

Claims

1, a kind of microphone receiver comprises garden plastic film, magnet and the plastic wrapper body of central authorities with copper coil, it is characterized in that:

2, microphone receiver according to claim 1 is characterized in that: be pasted with tuning cloth on the air vent hole of described plastic wrapper body, be pasted with adjustable sound paper on the pipe bottom surface of described plastic wrapper body bottom.