CN208128514U

CN208128514U - A kind of rectangular moving-coil loudspeaker

Info

Publication number: CN208128514U
Application number: CN201820309467.8U
Authority: CN
Inventors: 万华
Original assignee: Zhuhai Yuansheng Electronic Co Ltd
Current assignee: Zhuhai Yuansheng Electronic Co Ltd
Priority date: 2018-03-06
Filing date: 2018-03-06
Publication date: 2018-11-20
Anticipated expiration: 2028-03-06

Abstract

The utility model discloses a kind of rectangular moving-coil loudspeaker, including shell, magnet, T iron, washer, diaphragm, voice coil, protecting cover and pcb board, it is characterised in that：The shell uses the square casing of upper end opening, side is provided with sound regulating hole in the shell, the other side is equipped with an accommodation space, the diaphragm is oval racetrack, the T iron is inverted in the bottom of the accommodation space, via hole is provided in the middle part of the magnet, the magnet passes through the via hole in the middle part of itself, it is sheathed on the lower part of the T column of the T iron, the voice coil is set in the top of the T column of the T iron, the membrane covered is on the voice coil, washer is set on the T column of the T iron on magnet top, the protecting cover fastens on the housing, it is whole to form shell, shell entirety is additionally provided with sound mouth on side.The utility model is small in size, frequency response is wide, highly reliable and structure is simple, cheap.

Description

A kind of rectangular moving-coil loudspeaker

Technical field

The utility model relates to ear phone technology field, in particular to a kind of rectangular moving-coil loudspeaker.

Background technique

Traditional moving-coil unit loudspeaker, direction of usually pronouncing is, moving-coil loudspeaker, due to entirely sending out identical with the axial direction of diaphragm Line point is rounded, and pronunciation area is larger, therefore it is usually with positive round, and the pattern of flattening appears in earphone products Face, simultaneously because circular diaphragm can have sufficiently large area and relatively large Oscillation Amplitude, therefore the performance one of its low frequency It is straight all more satisfactory, but volume compares larger, is unable to satisfy the market rigors smaller and smaller to In-Ear Headphones volume.

In contrast, move iron loudspeaker has apparent advantage in volume, and dynamic iron loudspeaker are driven by the vibration of armature The iron plate at the top of loudspeaker cavity is fixed on to make a sound, and sound need to be by going out the outflow of sound mouth in loudspeaker side.Due to Dynamic iron loudspeaker are effectively to reduce the area at pronunciation end, therefore earphone can be made smaller by side sounding.But due to dynamic iron Loudspeaker, his frequency response is narrow, and low frequency behavior is poor, although effectively reducing overall body volume, but cannot individually hold The sound performance of full frequency band is carried on a shoulder pole, relatively better sound reproduction can just be accomplished by needing multiple units to cooperate jointly.By multiple-unit After superposition, its volume can also become larger, and earphone can not also be allowed to accomplish the requirement of miniaturization.

Therefore, above two loudspeaker cannot all accomplish the good and small in size idealization requirement of low frequency behavior.

Utility model content

Based on the deficiencies of the prior art, it the purpose of this utility model is to provide a kind of rectangular moving-coil loudspeaker, effectively reduces The volume of moving-coil loudspeaker improves sound quality.

To achieve the above object, the technical solution of the utility model is：

A kind of rectangular moving-coil loudspeaker, including shell, magnet, T iron, washer, diaphragm, voice coil, protecting cover and pcb board, feature It is：The shell uses the square casing of upper end opening, and side is provided with sound regulating hole in the shell, and the other side is equipped with one and holds Receive space, the diaphragm is oval racetrack, and the T iron is inverted in the bottom of the accommodation space, setting in the middle part of the magnet There is via hole, the magnet is sheathed on the lower part of the T column of the T iron by the via hole in the middle part of itself, and the voice coil is set in described The top of the T column of T iron, the membrane covered is on the voice coil, and washer is set on the T column of the T iron on magnet top, institute It states protecting cover to fasten on the housing, forms shell entirety, shell entirety is additionally provided with sound mouth on side.

Further, the pcb board is arranged on the opposite case panel of sound mouth.

Further, the shell is rectangle shell.

Further, the protecting cover is oval racetrack.

Further, the magnet uses annular magnet.

The beneficial effects of the utility model are：It is small in size, frequency response is wide, highly reliable and structure is simple, cheap.

Detailed description of the invention

Fig. 1 is the schematic diagram of the section structure of the utility model specific embodiment；

Fig. 2 is the decomposition texture schematic diagram of the utility model specific embodiment.

Specific embodiment

Below with reference to technical effect of the schematic diagram to the design of the utility model, specific structure and generation carry out it is clear, It is fully described by, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment is this A part of the embodiment of utility model, rather than whole embodiments are based on the embodiments of the present invention, those skilled in the art Member's other embodiments obtained without creative efforts, belong to the range of the utility model protection.

As depicted in figs. 1 and 2, a kind of rectangular moving-coil loudspeaker, including shell 1, magnet 2, washer 9, T iron 3, diaphragm 4, voice coil 5, protecting cover 6 and pcb board 7, the shell 1 use the square casing of upper end opening, and 1 side of shell is provided with sound regulating hole 11, The other side is equipped with an accommodation space, and the diaphragm 4 is oval racetrack, and the T iron 3 is inverted in the bottom of the accommodation space Portion is provided with via hole in the middle part of the magnet 2, and the magnet 2 is sheathed under the T column of the T iron 3 by the via hole in the middle part of itself The magnet in portion, the present embodiment uses annular magnet, and the voice coil 5 is set in the top of the T column of the T iron 3, and the diaphragm 4 covers It covers on the sound regulating hole 11 and the voice coil 5, washer 9 is set on the T column on the top of annular magnet, and washer 9 is located at Between magnet and diaphragm, play magnetic conduction, the protecting cover 6 is fastened on the shell 1, forms shell entirety, shell unitary side Sound mouth 8 is additionally provided on side.The pcb board 7 is arranged on the opposite case panel of sound mouth 8.The shell 1 is rectangle Shell.The protecting cover 6 is oval racetrack.

The shell of the present embodiment compares previous loudspeaker, effectively reduces volume, still, frequency response is wider, and reliability is stronger, valence Lattice are cheap.Meanwhile crash resistance is significantly better than complicated dynamic iron loudspeaker, the cross-sectional area of shell is less than 7mm, and diaphragm Diameter is greater than 10mm, receives bigger pronunciation component in sufficiently small space content, effectively improves sound expressive force and details weight It is existing.

Since the frequency response of this loudspeaker is wider, monomer curve can expressive ability from 20Hz to 5kHz, in this way On the basis of, it is only necessary to a upper small moving iron unit of arranging in pairs or groups on the basis of him, so that it may effectively promote the extension of its high frequency Ability.Especially on customization earphone, it can be closed in small unit group and make outstanding sound performance.

It is the preferred embodiment of the utility model it should be noted that described above, the utility model not office It is limited to above embodiment, as long as its technical effect for reaching the utility model with identical means, it is practical new all should belong to this The protection scope of type.

Claims

1. a kind of rectangular moving-coil loudspeaker, including shell, magnet, T iron, washer, diaphragm, voice coil, protecting cover and pcb board, feature exist In：The shell uses the square casing of upper end opening, and side is provided with sound regulating hole in the shell, and the other side is equipped with one and accommodates Space, the diaphragm are oval racetrack, and the T iron is inverted in the bottom of the accommodation space, is provided in the middle part of the magnet Via hole, the magnet are sheathed on the lower part of the T column of the T iron, the voice coil is set in the T by the via hole in the middle part of itself The top of the T column of iron, the membrane covered is on the voice coil, and washer is set on the T column of the T iron on magnet top, institute It states protecting cover to fasten on the housing, forms shell entirety, shell entirety is additionally provided with sound mouth on side.

2. rectangular moving-coil loudspeaker as described in claim 1, it is characterised in that：The opposite shell of sound mouth is arranged in the pcb board On honorable plate.

3. rectangular moving-coil loudspeaker as described in claim 1, it is characterised in that：The shell is rectangle shell.

4. rectangular moving-coil loudspeaker as described in claim 1, it is characterised in that：The protecting cover is oval racetrack.

5. rectangular moving-coil loudspeaker as described in claim 1, it is characterised in that：The magnet uses annular magnet.