CN210670550U

CN210670550U - Balance armature type double-radiation transducer of coaxial inverted loudspeaker

Info

Publication number: CN210670550U
Application number: CN201922253654.6U
Authority: CN
Inventors: 薛洪明; 施明明; 张春刚
Original assignee: Suzhou E Audio Electronics Co ltd
Current assignee: Suzhou E Audio Electronics Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-06-02
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a balanced armature formula dual radiation transducer of coaxial inversion speaker, include: the device comprises a voice coil, a balance armature device, a magnet, a front magnetic guide plate, a magnetic cup, a radiation screen, a radiation vibrating diaphragm, a centering support, a front cover plate and a folding ring; a balance armature device is arranged at the center of the upper end of the voice coil; a magnet is arranged outside the balance armature device; the bottom end of the magnet is provided with a front magnetic guide plate; the front end of the magnet is sleeved with a magnetic cup; a radiation net cover is arranged at the middle upper end of the outer side of the magnetic cup; a front cover plate is arranged on the outer side of the radiation net cover; a rear assembly frame is arranged on the outer side of the bottom end of the voice coil; a radiation vibrating diaphragm is arranged on a voice coil at the upper end of the centering support sheet; the front end of the radiation diaphragm is connected with the rear assembly frame through a folding ring. The device has the advantages that the transducer and the loudspeaker are coaxially integrated, the loudspeaker is designed in an inverted mode, the space of a product is greatly saved, and the height of the product is reduced.

Description

Balance armature type double-radiation transducer of coaxial inverted loudspeaker

Technical Field

The utility model belongs to the technical field of electroacoustic transducer technique and specifically relates to a balanced armature formula dual radiation transducer of coaxial inversion speaker.

Background

The traditional transducer is designed to only have one radiation acoustic energy component, and with the increasing requirements of users on radiation bandwidth, a single radiation unit cannot meet the requirements. Therefore, it is urgently needed to provide a scheme which can meet the requirements of low-frequency and medium-high frequency broadband HIFI application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a balanced armature formula dual radiation transducer of coaxial inversion speaker.

To achieve the above object, the present invention adopts the following:

a balanced armature dual radiation transducer for a coaxial inverted loudspeaker comprising: the device comprises a voice coil, a balance armature device, a magnet, a front magnetic guide plate, a magnetic cup, a radiation mesh enclosure, a radiation vibrating diaphragm, a rear assembly frame, a centering support piece, a front cover plate and a folding ring; a balance armature device is arranged at the center of the upper end of the voice coil; a magnet is arranged on the outer side of the balance armature device and is matched and connected with the voice coil; a front magnetic guide plate is arranged at the bottom end of the magnet; a magnetic cup is sleeved at the front end of the magnet; a radiation net cover is arranged at the middle upper end of the outer side of the magnetic cup; a front cover plate is arranged on the outer side of the radiation net cover; a rear assembly frame is arranged on the outer side of the bottom end of the voice coil, the front end of the rear assembly frame is matched with the rear end of the front cover plate, and the rear assembly frame is connected with the voice coil through a centering support piece; a radiation vibrating diaphragm is arranged on a voice coil at the upper end of the centering support sheet; the front end of the radiation diaphragm is connected with the rear assembly frame through a folding ring.

Preferably, the cross section of the corrugated rim is U-shaped; the centering support is spiral.

Preferably, the radiating diaphragm is responsible for low frequency energy radiation.

Preferably, the balanced armature arrangement and the loudspeaker are coaxially mounted, responsible for medium and high frequency energy radiation.

Preferably, the radiation diaphragm is of an arc type.

The utility model has the advantages of it is following:

1. the device combines the low frequency of the loudspeaker with the high frequency characteristic of the transducer, so that the device becomes a full-band sound-emitting unit product with excellent acoustic characteristics.

2. The device has the advantages that the transducer and the loudspeaker are designed coaxially and integrally, the loudspeaker is designed in an inverted mode, the space of a product is greatly saved, the height of the product is reduced, the device is very suitable for acoustic products such as earphones, and the like, and is used in occasions with high requirements on the volume of a sound production unit.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the balanced armature type dual radiation transducer of the coaxial inverted speaker of the present invention.

In the figures, the various reference numbers are:

1-front cover plate, 2-rear assembly frame, 3-radiation net cover, 4-magnetic cup, 5-balance armature device, 6-centering support piece, 7-voice coil, 8-magnet, 9-front magnetic guide plate, 10-radiation vibrating diaphragm and 11-folded ring.

Detailed Description

In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

As shown in fig. 1, a balanced armature type dual radiation transducer for a coaxial inverted speaker includes: the device comprises a voice coil 7, a balance armature device 5, a magnet 8, a front magnetic guide plate 9, a magnetic cup 4, a radiation mesh enclosure 3, a radiation vibrating diaphragm 10, a rear assembly frame 2, a centering support 6, a front cover plate 1 and a folding ring 11; a balance armature device 5 is arranged at the center of the upper end of the voice coil 7; a magnet 8 is arranged on the outer side of the balance armature device 5, and the magnet 8 is matched and connected with the voice coil 7; a front magnetic guide plate 9 is arranged at the bottom end of the magnet 8; the front end of the magnet 8 is sleeved with a magnetic cup 4; the middle upper end of the outer side of the magnetic cup 4 is provided with a radiation net cover 3, and the outer side of the radiation net cover 3 is provided with a front cover plate 1.

The rear assembling frame 2 is arranged on the outer side of the bottom end of the voice coil 7, the front end of the rear assembling frame 2 is matched with the rear end of the front cover plate 1, the rear assembling frame 2 is connected with the voice coil 7 through a centering support 6, and the centering support 6 is spiral; a radiation diaphragm 10 is arranged on the voice coil 7 at the upper end of the centering support 6, the radiation diaphragm 10 is responsible for low-frequency energy radiation, and the radiation diaphragm 10 is of an arc line type; the front end of the radiation diaphragm 10 is connected with the rear assembly frame 2 through a corrugated rim 11, and the cross section of the corrugated rim 11 is U-shaped.

The centring disk 6, also known as a damper, provides the return force and elastic stiffness for the vibrating system of the loudspeaker. The radiation diaphragm 10 drives air to vibrate, converting mechanical motion into acoustic energy. The voice coil 7, the magnet 8, and the magnetic cup 4 convert electromagnetic energy into mechanical motion, and the voice coil 7 reciprocates by applying an ampere force F ═ BLI.

The balanced armature assembly 5 is coaxially mounted with the loudspeaker and is responsible for the radiation of medium and high frequency energy.

The device is used for TWS true wireless earphones, and provides acoustic characteristics far better than that of a single loudspeaker under the condition of equivalent height and size of the existing loudspeaker unit. If the existing earphone wants to realize a full-band unit, a high-pitch unit and a low-pitch unit must be simultaneously installed in the earphone, but the volumes of the two units are large, and precious inner space of the earphone is occupied. This is particularly true for TWS headsets. The device places the high pitch unit and the low pitch unit coaxially, and the low pitch unit adopts the new invention of magnetic circuit inversion, and is smaller than the traditional low pitch unit in height and volume.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.

Claims

1. A balanced armature dual radiation transducer for a coaxial inverted loudspeaker, comprising: the device comprises a voice coil, a balance armature device, a magnet, a front magnetic guide plate, a magnetic cup, a radiation mesh enclosure, a radiation vibrating diaphragm, a rear assembly frame, a centering support piece, a front cover plate and a folding ring; a balance armature device is arranged at the center of the upper end of the voice coil; a magnet is arranged on the outer side of the balance armature device and is matched and connected with the voice coil; a front magnetic guide plate is arranged at the bottom end of the magnet; a magnetic cup is sleeved at the front end of the magnet; a radiation net cover is arranged at the middle upper end of the outer side of the magnetic cup; a front cover plate is arranged on the outer side of the radiation net cover; a rear assembly frame is arranged on the outer side of the bottom end of the voice coil, the front end of the rear assembly frame is matched with the rear end of the front cover plate, and the rear assembly frame is connected with the voice coil through a centering support piece; a radiation vibrating diaphragm is arranged on a voice coil at the upper end of the centering support sheet; the front end of the radiation diaphragm is connected with the rear assembly frame through a folding ring.

2. The balanced armature type dual radiation transducer for coaxial inverted speaker according to claim 1, wherein the corrugated rim has a U-shaped cross section; the centering support is spiral.

3. The balanced armature dual radiation transducer of a coaxial inverted loudspeaker according to claim 1, wherein the radiation diaphragm is responsible for low frequency energy radiation.

4. The balanced armature type dual radiation transducer for coaxial inverted speaker according to claim 1, wherein the balanced armature device and the speaker are coaxially assembled for medium and high frequency energy radiation.

5. The balanced armature dual radiation transducer of a coaxial inverted loudspeaker according to claim 3, wherein the radiation diaphragm is arcuate.