CN206251335U - A kind of open flume type sound-producing device and its earphone - Google Patents

Abstract

The utility model is related to a kind of open flume type sound-producing device, it includes housing, magnetic circuit system, conducting filament and vibrating diaphragm, magnetic circuit system, conducting filament and vibrating diaphragm are sequentially arranged at housing cavity from the bottom up, magnetic circuit system includes fixed iron piece, the first magnet, the second magnet, adjustment iron plate and coil, fixed iron piece is the three-back-shaped and internal magnet of fixed installation first, the second magnet, and adjustment iron plate one end is interspersed between the first magnet, the second magnet and may move；Other end suit coil, adjustment iron plate connects vibrating diaphragm by conducting filament, housing avris is provided with adjustment slotted eye, the fit structure of housing, magnetic circuit system, conducting filament and vibrating diaphragm is solid and reliable, it is ensured that sound-producing device normal work, in installation and later maintenance, adjustment iron plate and the first magnet, the second magnet relative position can quickly and easily be adjusted by adjustment slotted eye, so as to the accurate improve production efficiency of the installation site for ensureing adjustment iron plate and qualification rate, production cost is reduced, beneficial to realizing volume production.

Description

A kind of open flume type sound-producing device and its earphone

Technical field

The utility model is related to a kind of sound-producing device, more particularly to a kind of open flume type generating means and its earphone.

Background technology

Existing earphone is mainly made up of headband, sound-producing device, four parts of earmuff and lead, and sound-producing device is that earphone sets Most complicated, technology content highest part is counted, common sound-producing device is divided into moving-coil type sound-producing device and moving-iron type sound-producing device, The operation principle of moving-coil type sound-producing device is that after audio signal is input into voice coil loudspeaker voice coil, the electromagnetic field that voice coil loudspeaker voice coil is produced occurs with the change of signal Change, electromagnetic field and the magnetic circuit of change interact and promote the motion of voice coil loudspeaker voice coil and vibrating diaphragm, vibrating diaphragm promotion air sounding, and moving-iron type Sound-producing device is directly to drive diaphragm oscillations by a pitman for precise structure, because the integral installations such as dynamic iron, coil exist Inside moving-iron type sound-producing device, so its product is more compact slim and graceful, small by ectocine, frequency response curve is more stablized, and tonequality is more preferable, But difficulty is produced and processed, the position precision requirement to various widgets is higher, installing cannot adjustment, easily appearance when there is deviation Do over again increase production cost, and be unfavorable for the maintenance in later stage.

Utility model content

In order to solve the technical problem such as sound-producing device processing difficulties, inconvenience maintenance in the prior art, the utility model is provided A kind of open flume type generating means and its earphone of reasonable in design, can improve production efficiency, reduces cost, particular technique side Case is as follows：

A kind of open flume type sound-producing device, including housing, magnetic circuit system, conducting filament and vibrating diaphragm, magnetic circuit system, conducting filament and shake Film is sequentially arranged at housing cavity from the bottom up, and magnetic circuit system includes fixed iron piece, the first magnet, the second magnet, adjustment iron plate And coil, fixed iron piece is the three-back-shaped and internal magnet of fixed installation first, the second magnet, between the first magnet, the second magnet It is spaced, adjustment iron plate one end is interspersed between the first magnet, the second magnet and may move；Other end suit coil, adjustment iron plate Vibrating diaphragm is connected by conducting filament, housing avris is provided with adjustment slotted eye, and outside adjusting rod can stretch into regulation adjustment iron from adjustment slotted eye Piece and the first magnet, the second magnet relative position.

Used as a kind of preferred scheme of the present utility model, the housing includes upper casing and lower casing, and lower casing is provided with limited step, Vibrating diaphragm is limited step and upper casing covers positioning.

Used as a kind of preferred scheme of the present utility model, the upper casing middle part is provided with gauge hole, and gauge hole is round platform Shape.

Used as a kind of preferred scheme of the present utility model, upper casing and lower casing constitute accommodating cavity, and magnetic circuit system, conducting filament are installed In accommodating cavity, adjustment slotted eye is located at lower casing.

Used as a kind of preferred scheme of the present utility model, the adjustment iron plate is U-shaped, and adjustment iron plate top is provided with to be easy to connect Connect the location hole of conducting filament.

Used as a kind of preferred scheme of the present utility model, the conducting filament welds or is bonded in location hole.

Used as a kind of preferred scheme of the present utility model, the coil connects external power source by adjustment slotted eye.

As a kind of preferred scheme of the present utility model, at least two pieces of the fixed iron piece.

The utility model additionally provides a kind of earphone, including above-mentioned open flume type sound-producing device.

The beneficial effects of the utility model：Compared with prior art, open flume type sound-producing device structure of the present utility model sets Meter is reasonable, and the fit structure of housing, magnetic circuit system, conducting filament and vibrating diaphragm is solid and reliable, it is ensured that sound-producing device normal work, in peace Dress and during later maintenance, can quickly and easily adjust the relative position of adjustment iron plate and the first magnet, the second magnet by adjustment slotted eye Put, so as to ensure the accurate improve production efficiency of installation site and qualification rate of adjustment iron plate, production cost is reduced, beneficial to realization amount Produce, in addition, vibrating diaphragm covers positioning by upper casing limited step and upper casing, while seismaesthesia is produced and difficult for drop-off, adjustment iron plate Top be provided for connecting the location hole of conducting filament, biography conducting filament can be accurately positioned, and this hole knockout compares butt-joint Or one wire vent is firm on horseshoe clamp weighing apparatus iron plate, it is possible to reduce the heavy burden of conducting filament and error, bad production is reduced, while carrying Rise the response of sound frequency.

Brief description of the drawings

Fig. 1 is overall structure diagram of the present utility model；

Fig. 2 is assembling schematic diagram of the present utility model；

Fig. 3 is decomposing schematic representation of the present utility model；

Fig. 4 is the decomposing schematic representation of magnetic circuit system of the present utility model.

Specific embodiment

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described further：

It is term " " center ", " on ", D score, "left", "right", " perpendicular, it is necessary to explanation in description of the present utility model Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " are, based on orientation shown in the drawings or position relationship, to be only Described with simplified for the ease of description the utility model, must had rather than the position or element for indicating or implying meaning specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Can be two connections of element internal.For the ordinary skill in the art, concrete condition can be regarded and understands above-mentioned Term concrete meaning in the present invention.

As shown in figures 1-4, a kind of open flume type sound-producing device, including housing, magnetic circuit system 2, conducting filament 3 and vibrating diaphragm 4, magnetic Road system 2, conducting filament 3 and vibrating diaphragm 4 are sequentially arranged at housing cavity from the bottom up, and magnetic circuit system 2 includes fixed iron piece 21, first Magnet 22, the second magnet 23, adjustment iron plate 24 and coil 25, at least two pieces of fixed iron piece 21, fixed iron piece 21 is three-back-shaped And the first magnet 22 of internal fixed installation, the second magnet 23, it is spaced between the first magnet 22, the second magnet 23, adjustment iron plate 24 one end are interspersed between the first magnet 22, the second magnet 23 and may move；Other end suit coil 25, adjustment iron plate 24 is by passing Seal wire 3 connects vibrating diaphragm 4, and housing avris is provided with adjustment slotted eye 5, and outside adjusting rod can stretch into regulation adjustment iron plate from adjustment slotted eye 5 24 and first magnet 21, the relative position of the second magnet 23, coil 25 connects external power source by adjustment slotted eye 5, and coil 25 is powered Magnetic field effect, the magnetic field that the surrounding of adjustment iron plate 24 is produced and the first magnet 21, the magnetic field interaction of the second magnet 23 are produced, is adjusted School iron plate 24 produces up-down vibration, and vibration is transferred to vibrating diaphragm 4 by adjustment iron plate 24 by conducting filament 3, so as to send sound, electricity Kinetic energy can be converted into, then kinetic energy is converted into acoustic energy, overall volume is small, small by external environment influence.

Specifically, the housing includes upper casing 11 and lower casing 12, lower casing 12 is provided with limited step 12a, and vibrating diaphragm 4 is limited platform Rank 12a and upper casing 11 cover positioning, it is ensured that vibrating diaphragm 4 is difficult to be come off from housing again while vibration, 12 groups of upper casing 11 and lower casing Into accommodating cavity, magnetic circuit system 2, conducting filament 3 are arranged in accommodating cavity, and effectively save installing space, adjustment slotted eye 5 is located at lower casing 12 Place, is easy to adjust the position of adjustment iron plate 24.

Specifically, the middle part of the upper casing 11 is provided with gauge hole 6, gauge hole 6 is truncated cone-shaped, and gauge hole 6 can play adjustment The effect of frequency response sound, the adjustment iron plate 24 be U-shaped, be easy to respectively with the first magnet 22, the second magnet 23, coil 25 Coordinate and install, the top of adjustment iron plate 24 is provided with the location hole 31 for being easy to connect conducting filament 3, the location hole 31 uses laser technology Process, micro-aperture can be accomplished；This mode possesses unique, accuracy and fastness, this accuracy and fastness Do not connect to be accomplished by integration or butt-joint, and conducting filament 3 welds or is bonded in location hole 31, reduces drive line Bear a heavy burden and alignment error, reduce bad production, process very convenient.

This example preferably opens up adjustment slotted eye 5 on the periphery of lower casing 12, adjustment slotted eye 5 at least one, can be by adjustment groove Hole 5 quickly and easily adjusts the magnet 22 of adjustment iron plate 24 and first, the relative position of the second magnet 23, so as to ensure adjustment iron plate 24 installation site is accurate, improve production efficiency and qualification rate.

Further, the utility model additionally provides a kind of earphone, including above-mentioned open flume type sound-producing device

Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations, for the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all regarded To belong to protection domain of the present utility model.

Claims (9)

1. a kind of open flume type sound-producing device, it is characterised in that：Including housing, magnetic circuit system, conducting filament and vibrating diaphragm, magnetic circuit system, Conducting filament and vibrating diaphragm are sequentially arranged at housing cavity from the bottom up, and magnetic circuit system includes fixed iron piece, the first magnet, the second magnetic Iron, adjustment iron plate and coil, fixed iron piece is the three-back-shaped and internal magnet of fixed installation first, the second magnet, the first magnet, the It is spaced between two magnet, adjustment iron plate one end is interspersed between the first magnet, the second magnet and may move；The other end covers wiring Circle, adjustment iron plate connects vibrating diaphragm by conducting filament, and housing avris is provided with adjustment slotted eye, and outside adjusting rod can be stretched into from adjustment slotted eye Regulation adjustment iron plate and the first magnet, the second magnet relative position.

2. a kind of open flume type sound-producing device according to claim 1, it is characterised in that：The housing includes upper casing with Shell, lower casing is provided with limited step, and vibrating diaphragm is limited step and upper casing covers positioning.

3. a kind of open flume type sound-producing device according to claim 2, it is characterised in that：The upper casing middle part is provided with tune School hole, gauge hole is truncated cone-shaped.

4. a kind of open flume type sound-producing device according to Claims 2 or 3, it is characterised in that：Upper casing and lower casing composition are accommodating Chamber, magnetic circuit system, conducting filament are arranged in accommodating cavity, and adjustment slotted eye is located at lower casing.

5. a kind of open flume type sound-producing device according to claim 1, it is characterised in that：The adjustment iron plate is U-shaped, adjustment Iron plate top is provided with the location hole for being easy to connect conducting filament.

6. a kind of open flume type sound-producing device according to claim 5, it is characterised in that：The conducting filament welding is bonded in Location hole.

7. a kind of open flume type sound-producing device according to claim 1, it is characterised in that：The coil is connected by adjustment slotted eye Connect external power source.

8. a kind of open flume type sound-producing device according to claim 1, it is characterised in that：The fixed iron piece at least two Block.

9. a kind of earphone, it is characterised in that：Including any described open flume type sound-producing device of claim 1~8.